CN102831870A - Display device and method for correcting uneven brightness of display device - Google Patents

Embodiment

(embodiment 1)

Below, an embodiment of the invention are described.In this embodiment; Mainly be that to proofread and correct with strip that the bearing of trend with source electrode line (data line, data signal line) that occurs on the display device is paralleled uneven (brightness disproportionation of strip) be that example describes, this display device for example for movable-type devices such as portable phone possessed based on the transmissive liquid crystal display device that shows with 6 bits performance RGB view data of all kinds.But applicable object of the present invention is not limited thereto.

Solid line among Fig. 3 is the curve of the brightness value of each line pixel group of calculating of the brightness data that extracted according to brightness data extraction portion 13 of expression, and dotted line is the curve of moving average of the brightness value of above-mentioned each the line pixel group of expression.The brightness of the even invariably state of above-mentioned moving average value representation is to be prone to be identified as the locality brightness disproportionation and will to result from the brightness value that obtains after the milder brightness disproportionations such as brightness disproportionation of backlight are removed in order to extract.In addition; In Fig. 4; Solid line is represented to deduct above-mentioned moving average in the brightness value of each the line pixel group from Fig. 3; Adding the state of the mean value (average brightness that display frame is all) of panel luminance, is that expression has been removed and resulted from the curve of brightness value after the milder influence that brightness disproportionation caused of variation such as brightness disproportionation of backlight, each line pixel group, and dotted line is a curve of representing the mean value of panel luminance.At this, the horizontal ordinate of above-mentioned each curve is represented the position of each line pixel group, and ordinate is represented the brightness value (mean value of the brightness value of the pixel in each line pixel group) of each line pixel group.

That is, on transmissive liquid crystal display device,, generally all be provided with diffuser plate etc., but be difficult to realize homogenising completely for the irradiates light that makes backlight shines on the display panel equably.Therefore, according to the relative position with respect to backlight, difference appears in the brightness of the irradiates light of backlight sometimes.But, with the relative position to backlight be because of Luminance Distribution in the wide scope of display panel, be milder variation (with reference to the degree of tilt of the dotted line part among Fig. 3), therefore, its situation that is identified as brightness disproportionation is less.That is, what the people leaned on that eyes can identify brightness disproportionation is that the situation that big brightness changes takes place locally, and for brightness spatially with bigger continuous varying cycles situation, be difficult for being identified as brightness disproportionation.Therefore, it is less that the luminance difference that Luminance Distribution caused of the irradiates light of backlight is identified as the situation of brightness disproportionation.

On the other hand; When if the brightness value of not considering the influence of backlight and the appropriate zone of brightness disproportionation will not taking place is regarded as keeping a predetermined value in the whole zone of display frame; The anti-situation that but is detected as brightness disproportionation in zone of brightness disproportionation can occur not to be identified as, and the zone of identified brightness disproportionation is detected as the situation in appropriate zone.That is it is different because of the position on the display panel, the brightness value (appropriate brightness value) in the appropriate zone of brightness disproportionation not take place.

To this, even the correction data that the brightness disproportionation that 16 generations of correction data generation portion also can make this luminance deviation cause under the situation of luminance deviation less than the brightness value suitable with 1 GTG of view data with respect to appropriate brightness value becomes and is difficult for being identified.

Then, poor between value and the appropriate brightness value of each brightness disproportionations part detects in correction data generation portion 16.In the example of Fig. 5,, poor c1, c2, d1, d2 have been detected respectively for brightness disproportionation C1, C2, D1, D2.

In addition; 16 couples of poor A of correction data generation portion and difference B detect; Wherein, Difference than between the brightness value of the pairing appropriate part of view data of the brightness value of the pairing appropriate part of view data of high 1 GTG of benchmark GTG value and benchmark GTG value is made as poor A, the brightness value of the pairing appropriate part of view data of benchmark GTG value and be difference B than the difference between the brightness value of the pairing appropriate part of view data of low 1 GTG of benchmark GTG value.

Fig. 6 is the curve map of an example of the relation between the above-mentioned ratio of expression position and this each brightness disproportionation that bright brightness disproportionation is arranged.

Though not showing above-mentioned ratio among Fig. 6 is the situation more than 1.375, under the situation more than 1.375, also can adopt method same as described above, each luminance area is divided into groups and makes and the corresponding correction data in each brightness disproportionation zone.In addition, also be not limited in example shown in Figure 6 with each scope of organizing corresponding above-mentioned ratio.

That is to say; Be under the situation below 1 for example at above-mentioned ratio; In poor (with the deviation of appropriate brightness value) with respect to appropriate brightness value is bigger brightness disproportionation zone; The shared ratio of pixel of carrying out 1 gray scale correction for display image data becomes big (density of carrying out the pixel of 1 gray scale correction for display image data becomes big); And be less brightness disproportionation zone in poor (with the deviation of appropriate brightness value) with respect to appropriate brightness value, the shared ratio of pixel of carrying out 1 gray scale correction for display image data diminish (density of carrying out the pixel of 1 gray scale correction for display image data diminishes).Fig. 7 is that the above-mentioned ratio that is illustrated in the correction data is under the situation below 1, carries out the key diagram of example of the pixel of 1 gray scale correction for display image data.

For example; Under the situation of c1/B=1/3; Generation be used for to display image data with the corresponding source electrode line of brightness disproportionation C1 on the pixel data of pixel; Carry out 1 pixel in per 3 pixels being reduced the correction data (being to be illustrated in all pixel counts that are connected with the source electrode line of calibration object, the correction data of adjustment correction pixels proportion) of 1 gray scale correction along the bearing of trend of source electrode line.In addition; Under the situation of d1/A=1/3; Generation be used for to display image data with the corresponding source electrode line of brightness disproportionation D1 on the pixel data of pixel, carry out 1 pixel in per 3 pixels being improved the correction data of 1 gray scale correction along the bearing of trend of source electrode line.

In addition; Can be according to the size of above-mentioned ratio ci/B (i is the integer position, more than 1 of expression brightness disproportionation) or above-mentioned ratio dj/A (j is the integer position, more than 1 of expression brightness disproportionation); The brightness disproportionation degree (degree that promptly differs with appropriate brightness value) of judging each brightness disproportionation zone belongs to which group in predefined a plurality of groups; And organize predefined value according to this judged result and for each; Set the ratio (also can say so the interval between the adjustment correction pixels) of the adjustment correction pixels in the display image data.

In addition, the value of ci/B or dj/A being described in above-mentioned example and the ratio of adjustment correction pixels are the situation of identical value.But, be not limited to above-mentioned, for example can be according to ci/B or dj/A on duty with the predetermined in advance value that correction coefficient was obtained, set the ratio of adjustment correction pixels.In addition, can also set above-mentioned correction coefficient according to the GTG value of display image data.As stated, brightness disproportionation is identified in middle GTG easily, and under near black or white show state, is difficult to be identified.Therefore, can the above-mentioned correction coefficient of middle GTG be set for greater than the value near the above-mentioned correction coefficient of black and white GTG.

As stated; For example, above-mentioned correction data by with the corresponding source electrode line of brightness disproportionation (position of correcting area), this source electrode line in ratio (adjustment correction pixels at interval), the expression of adjustment correction pixels make above-mentioned adjustment correction pixels improve the information that 1 pixel still reduces by 1 pixel to constitute.Surpass at above-mentioned ratio under the situation of 1 brightness disproportionation, except above-mentioned information, also comprise the correcting value (correcting value of the pixel beyond the adjustment correction pixels) of the GTG value of each pixel that is comprised with this corresponding zone of brightness disproportionation.Perhaps; Surpass at above-mentioned ratio under the situation of 1 brightness disproportionation; Be replaced in expression and make above-mentioned adjustment correction pixels improve the information that 1 GTG still reduces by 1 GTG, can comprise correcting value (value of said n) and the GTG value raising that expression makes this adjustment correction pixels or the information that reduces of the GTG value of above-mentioned adjustment correction pixels.

In addition, and do not require and to proofread and correct all brightness disproportionation zones, can only proofread and correct yet a part of brightness disproportionation zone in the detected brightness disproportionation zone.For example, the degree that can differ according to the size in brightness disproportionation zone and with appropriate brightness value etc. are only extracted and are proofreaied and correct the brightness disproportionation zone that is identified easily.

Through correction data is compressed as described above; Though the result is different because of compression method, can to possessing 360 pixels be arranged for example to store * correction data of the display device of the display panel of 480 pixels such as the very little memory capacity of 1kbit degree.Therefore, as correction data storage part 31, can utilize these display device the vacant zone of original storer.

In addition, under the situation of brightness disproportionation across adjacent source electrode line, can each be adjusted correction pixels and be set in the adjustment correction pixels that makes on these adjacent source electrode lines and be on the source electrode line bearing of trend on the different distributed locations.Fig. 9 is the figure that representes an example of correction data in such cases.

Particularly, be the brightness disproportionation zone below 1 for above-mentioned ratio, make the GTG value of adjustment correction pixels change 1 GTG, and do not proofread and correct for other pixel.In addition, regional for above-mentioned ratio above 1 brightness disproportionation, make the GTG value change of this each pixel and the corresponding GTG value of integral part of above-mentioned ratio, and make further 1 GTG that changes of GTG value of adjustment correction pixels.Perhaps, surpass 1 brightness disproportionation zone, can make the GTG value change of adjustment correction pixels and the corresponding GTG value of value of said n, and not proofread and correct for other pixels for above-mentioned ratio.

As stated; The correcting value of the GTG value of each the adjustment correction pixels that only needs to be comprised in the correcting area with display image data, the correcting value that removes the GTG value of adjusting each pixel the correction pixels add and get final product on the brightness value of each pixel of comprising at this correcting area; Therefore need not prepare multiplier and mlultiplying circuit etc., forming circuit simply.

Each pixel comprises that switch is with transistor and pixel capacitance.Pixel capacitance comprises liquid crystal capacitance and as required and additional auxiliary capacitor (all not shown).Switch is connected with gate line with transistorized grid, and its source electrode is connected with source electrode line, and its drain electrode is connected with an electrode of pixel capacitance.At this, another electrode of pixel capacitance is connected with the common common electrode lines of all pixels.

At this, during the selection of gate line after, switch with transistor end during, pixel capacitance keep this by the time voltage.Owing to the transmissivity of liquid crystal or reflectivity along with the voltage that is applied on the liquid crystal capacitance changes, therefore,, the show state of pixel is changed with view data through selecting gate line and on source electrode line, applying and the corresponding voltage of view data.

As stated; The correcting value of the GTG value through making the adjustment correction pixels in the pixel that correcting area comprises is different from the correcting value of the GTG value of other pixels; Can make and be identified as; Be same as the situation of the brightness value of all pixels of this correcting area being proofreaied and correct identically with less than the brightness value of 1 GTG degree of display image data (fraction part that perhaps, is equivalent to display image data is not to be the brightness value of 0 GTG value).Promptly; Can be similar to; With the situation of the brightness value of all pixels of correcting area being proofreaied and correct identically less than the brightness value suitable (fraction part that perhaps, is equivalent to display image data is not to be the brightness value of 0 GTG value) with 1 GTG of display image data.Therefore, correcting luminance is uneven accurately, can prevent to be regarded as brightness disproportionation more rightly.

In addition, every in this embodiment at a distance from the scheduled period (for example, each frame), the position of the adjustment correction pixels of each correcting area is changed.That is, in the brightness disproportionation zone, spatially with on the time position of adjustment correction pixels is disperseed.

According to above-mentioned; Can make the image that is identified more near make the brightness value of all pixels in the brightness disproportionation zone change identically less than the image under the situation of the brightness value suitable (perhaps, fraction part is not to be 0 GTG value) with 1 GTG of display image data.Therefore, can prevent more effectively that brightness disproportionation is identified.

In addition, the situation of proofreading and correct for the strip brightness disproportionation parallel with the bearing of trend of source electrode line has been described in this embodiment.But the present invention is not limited thereto, and also can be used in the situation of proofreading and correct for the strip brightness disproportionation parallel with the bearing of trend of gate line.In such cases; For example; According to the brightness data that from photographed data, extracts, detect the mean value with the brightness value of the corresponding line pixel group of the bearing of trend of each gate line, to this testing result; On perpendicular to the direction of line pixel group, carry out the moving average processing, and come sensed luminance uneven according to result.In addition; Testing result according to brightness disproportionation; From with the corresponding gate line in brightness disproportionation zone whenever select pixel as the adjustment correction pixels at a distance from predetermined space, make the GTG value of selected adjustment correction pixels change 1 GTG at least, come thus view data is proofreaied and correct.

In addition, in this embodiment, the brightness value that calculate each brightness disproportionation zone is during with respect to the deviation of appropriate brightness value, and the moving average of the brightness value of line pixel group is regarded as appropriate mean value, calculates the deviation of above-mentioned brightness value.According to above-mentioned; Even for example cause under the appropriate brightness value situation different, also can simply calculate the deviation of the brightness value in each brightness disproportionation zone rightly with respect to appropriate brightness value with the position in the display frame in the Luminance Distribution of the irradiates light of backlight etc.In addition, under the situation like the corresponding appropriate brightness value in the position in prevision and the display frame, also can calculate the deviation of the brightness value in each brightness disproportionation zone according to appropriate brightness value with respect to appropriate brightness value.

(embodiment 2)

The structure that the strip inequality is proofreaied and correct has been described in the embodiment 1.In this embodiment, the topology example that the mottled inequality of locality (mottled inequality) is proofreaied and correct will be described.

Then, for each zone that bright brightness disproportionation takes place, calculate the absolute value of above-mentioned e | the ratio of e| and above-mentioned B | e|/B.Above-mentioned ratio | e|/B is under the situation below 1; In order to proofread and correct this brightness disproportionation; The quantity (number) of adjustment correction pixels is set for; Ratio and above-mentioned ratio between the number of adjustment correction pixels and the quantity of above-mentioned each regional pixel that is comprised | e|/B is corresponding, and makes the GTG value of the view data of this adjustment correction pixels reduce by 1 GTG.For example, for above-mentioned ratio | the value of e|/B is 1/3 zone, and the GTG value that generation will be contained in 1 pixel in per 3 pixels in this zone reduces the correction data of 1 GTG.

Equally, for each zone that dark brightness disproportionation is arranged, calculate the absolute value of above-mentioned f | the ratio of f| and above-mentioned A | f|/A.Above-mentioned ratio | f|/A is under the situation below 1; In order to proofread and correct this brightness disproportionation; The quantity of adjustment correction pixels is set for; Ratio and above-mentioned ratio between the quantity of adjustment correction pixels and the quantity of above-mentioned each regional pixel that is comprised | f|/A is corresponding, and makes the GTG value of the view data of this adjustment correction pixels improve 1 GTG.For example, for above-mentioned ratio | the value of f|/A is 1/3 zone, and the GTG value that generation will be contained in 1 pixel in per 3 pixels in this zone improves the correction data of 1 GTG.

In addition, and do not require and to proofread and correct detected all brightness disproportionation zones, can only proofread and correct yet a part of brightness disproportionation zone in the detected brightness disproportionation zone.For example, can according to the size in brightness disproportionation zone and and appropriate brightness value between the degree etc. of deviation, only identified brightness disproportionation zone is easily extracted and is proofreaied and correct.

Shown in Figure 14 (a) and Figure 14 (b); For each ratio of adjusting correction pixels (perhaps; With corresponding each group of the degree of brightness disproportionation); Preestablish the configuration pattern of a plurality of adjustment correction pixels, through in adjacent block, using different configuration patterns, it is adjacent to each other to avoid adjusting correction pixels.

More than, the situation that correcting pattern is arranged in the correcting pattern storage portion stores in advance has been described, but the present invention is not limited thereto.For example, can be based on the ratio (classification results that perhaps, carries out according to the degree of brightness disproportionation) of the adjustment correction pixels in the block as the calculation formula of parameter, is calculated the position of adjustment correction pixels.

In addition, more than explained each secondary image that uses R, G, B plain shared configuration pattern decide the situation of the position of adjustment correction pixels, but the present invention do not limit therewith, also can be to each color settings configuration pattern.For example; Shown in figure 16; For with the degree of brightness disproportionation corresponding each the group (perhaps adjusting the ratio of correction pixels); Preestablish the plain correcting pattern and the plain correcting pattern of the secondary image that is used for R and B of secondary image that is used for G, use these two correcting patterns to select each secondary image of calibration object plain then.Perhaps, can alternately use this two correcting patterns.

For example; Shown in Figure 14 (a) and Figure 14 (b), for each ratio (perhaps, with corresponding each group of the degree of brightness disproportionation) of the adjustment correction pixels that correction data comprised; Preestablish the configuration pattern of a plurality of adjustment correction pixels, and switch corresponding configuration pattern at each frame.Perhaps, shown in figure 17, can the position of adjustment correction pixels all be changed at each frame through move the applicable position of configuration pattern at each frame.

As stated; The correcting value of the GTG value through making the adjustment correction pixels in the pixel that correcting area comprises is different from the correcting value of the GTG value of other pixels; Can make the situation identical that be regarded as with following situation; I.e. situation the brightness value of all pixels of this correcting area is proofreaied and correct identically less than the brightness value of 1 GTG degree of display image data (fraction part that perhaps, is equivalent to display image data is not to be the brightness value of 0 GTG value).Promptly; Can be similar to; With the situation of the brightness value of all pixels of correcting area being proofreaied and correct identically less than the brightness value suitable (fraction part that perhaps, is equivalent to display image data is not to be the brightness value of 0 GTG value) with 1 GTG of display image data.Therefore, correcting luminance is uneven accurately, can prevent to be regarded as brightness disproportionation more rightly.

In addition, every in this embodiment at a distance from the scheduled period (for example, each frame), the position of the regional adjustment correction pixels of each brightness disproportionation is changed.That is, in the brightness disproportionation zone, spatially upward the position of adjustment correction pixels is disperseed with the time.

According to above-mentioned, can make the image that is identified more approach to make the brightness value of all pixels in the brightness disproportionation zone changed all identically less than with the situation of the corresponding brightness value of 1 GTG of display image data under image.Therefore, can prevent more effectively that brightness disproportionation is identified.

In addition, be not limited in correcting area is approximated to border circular areas, can also be approximated to polygonal zone.This kind situation; As the position of expression correcting area and the information of scope; For example, as correction data, can comprise the position on above-mentioned polygonal each summit; At above-mentioned polygon is under the situation of regular polygon, can comprise the center and the radius of this polygonal circumcircle or incircle as correction data.

(embodiment 3)

Below, other embodiments of the present invention are described.For the purpose of convenient, for above-mentioned embodiment in parts with identical function of the parts explained give identical parts label, and omit its explanation.

In this embodiment; That movable-type devices such as main explanation pocket telephone are possessed, according on the transmissive liquid crystal display device that shows with 6 bits performance RGB view data of all kinds, the example that the strip brightness disproportionation (brightness disproportionation of strip) that the bearing of trend with source electrode line (data line, data signal line) that is occurred is paralleled and the mottled brightness disproportionation (mottled brightness disproportionation) of locality are proofreaied and correct.Promptly; In this embodiment; Explanation intersects with a plurality of parallel source electrode lines and is provided with and is provided with on the display device of pixel at each cross part of above-mentioned gate line and above-mentioned source electrode line having a plurality of parallel gate lines (scan signal line), the example of proofreading and correct for the mottled brightness disproportionation of strip brightness disproportionation that parallels with source electrode line that occurs and locality.

Figure 19 is the block diagram of the structure of the drive control part 22c that possessed of expression display device 20c.As shown in the drawing, drive control part 22c comprises that correction data storage part (the 1st correction data generate use data store) 31, correction data storage part (the 2nd correction data generates and uses data store) 31b, correction data make portion 41, add and subtract counter 136, shift register the 137, the 1st latchs portion the 36, the 2nd and latchs portion 37 and D/A converter section 38.Wherein, correction data makes portion 41 and is made up of 34b of lsb decoder (the 1st lsb decoder) 32, spatial dispersion handling part (the 1st spatial dispersion handling part) 33, time dispersion treatment portion (the 1st time dispersion treatment portion) 34, lsb decoder (the 2nd lsb decoder) 32b, spatial dispersion handling part (the 2nd spatial dispersion handling part) 33b, time dispersion treatment portion (the 2nd time dispersion treatment portion) and integration handling part 135.At this; By lsb decoder 32, spatial dispersion handling part 33 and the time dispersion treatment portion 34 constitute the 1st correction data and make portion, constitute the 2nd correction data by lsb decoder 32b, spatial dispersion handling part 33b and the time 34b of dispersion treatment portion and make portion (all not shown).

At this, the result who adds about correcting value to the correcting value of the 1st correction data and the 2nd correction data surpass predetermined threshold value in advance, pixel, can the correcting value to this pixel be set at above-mentioned threshold value.For example, be ± 1 with above-mentioned threshold setting in advance, be+1 pixel for the correcting value of the correcting value of the 1st correction data and the 2nd correction data, can the correcting value of this pixel be set at+1.Equally, be-1 pixel, can the correcting value of this pixel be set at-1 for the correcting value of the 1st correction data and the correcting value of the 2nd correction data.In addition, above-mentioned threshold value is not limited to ± and 1, can set the numerical value arbitrarily more than 1 for.

As stated; In the pixel that correcting area comprised; The correcting value that is different from other pixels through the correcting value that makes the adjustment correction pixels; Can make the situation identical that be regarded as, i.e. situation the brightness value of all pixels of this correcting area is proofreaied and correct all identically less than the brightness value of 1 GTG degree of display image data (fraction part that perhaps, is equivalent to display image data is not to be the brightness value of 0 GTG value) with following situation.Promptly; Can be similar to; With the situation of the brightness value of all pixels of correcting area all being proofreaied and correct less than the brightness value suitable (fraction part that perhaps, is equivalent to display image data is not to be the brightness value of 0 GTG value) with 1 GTG of display image data.Therefore correcting luminance is uneven accurately, can prevent to be regarded as brightness disproportionation more rightly.

(embodiment 4)

Below, other embodiments of the present invention are described.For the purpose of convenient, for above-mentioned embodiment in parts with identical function of the parts explained give identical parts label, and omit its explanation.

RAM43 is used for the storer (so-called frame buffer memory) that storage is equivalent to the display image data of 1 frame (1 picture); The clock signal of importing according to illustrated control part never; With the corresponding predetermined timing of this clock signal; With the display image data of 1 frame of being stored, export to shift register 44 one by one with the amount that is equivalent to 1 line (1 gate line).In this manual, mainly explain RAM43 with 1 corresponding each pixel of gate line, the situation of output pixel data side by side.But the present invention is not limited thereto, and also can corresponding each pixel of 1 gate line with display frame be divided into the group that is made up of a plurality of pixels, according to each group that is divided into, output image data side by side.

(embodiment 5)

Below, other embodiments of the present invention are described.For the purpose of convenient, for above-mentioned embodiment in parts with identical function of the parts explained give identical parts label, and omit its explanation.

(embodiment 6)

Below, other embodiments of the present invention are described.For the purpose of convenient, give identical symbol for the parts that function is identical with above-mentioned enforcement, and omit its explanation.

According to above-mentioned,, also can carry out the brightness disproportionation treatment for correcting to display image data even in the structure that possesses the RAM43 that output display image data arranged side by side is arranged.In addition; Only need possess to have the integration correction data of the display image data of 1 pixel and 1 pixel added and subtracted and calculate the plus-minus counter of handling 136 and get final product; Than the above-mentioned structure of correction data and display image data being taken advantage of calculation of the prior art; Multiplier and bit compression circuit need be set, therefore can dwindle circuit scale significantly, thereby can reduce manufacturing cost significantly.

At this; Generally in the middle of showing, identify brightness disproportionation easily under the situation of the pixel (the especially image of Dark grey) of GTG, and under the situation that shows white pixel (perhaps approximate white pixel) and black pixel (perhaps approximate pixel of deceiving) difficulty discern.Therefore, if under the situation that shows white pixel or black pixel, carry out the treatment for correcting of above-mentioned brightness disproportionation, the zone that can occur proofreading and correct shows factitious situation.

In addition; The present invention is not limited to structure that the mean value of the GTG value of each pixel of correcting area is compared with higher limit and lower limit respectively, for example can be from the intermediate value of maximal value, minimum value, maximal value and the minimum value of the GTG value of each pixel of correcting area; Selecting one of which and higher limit and lower limit to compare in the intermediate value of mean value, maximal value, minimum value, maximal value and the minimum value of the GTG value of the one part of pixel in each pixel of correcting area arbitrarily gets final product.

In addition; Can also to the GTG value of each pixel that is contained in correcting area in the display image data and in advance preset upper limit value and lower limit compare, be that pixel and the GTG value of the pixel below the above-mentioned lower limit more than the above-mentioned higher limit do not proofreaied and correct for the GTG value.

In addition, in above-mentioned each embodiment, explained to come display image data added and subtracted and calculated the structure of handling, but the present invention is not limited thereto according to the correction data that both proofread and correct to strip brightness disproportionation and mottled brightness disproportionation.For example, can be only handle according to strip brightness disproportionation and mottled brightness disproportionation correction datas of proofreading and correct wherein being come display image data added and subtracted to calculate.In addition; The present invention is not limited to come display image data is added and subtracted the structure of calculating processing according to the correction data of brightness disproportionation; Be under the situation of liquid crystal indicator for example, can result from the uneven correction data of display image of luminance deviation of irradiates light of backlight and come display image data added and subtracted to calculate to handle according to being used to proofread and correct in display device.In addition; On display device, can come display image data added and subtracted to calculate to handle to the boundary portion of each display panel correction data nearby, that proofread and correct because of the display image inequality due to the property difference of each panel according to being used for the display frame that forms by a plurality of display panel combination.

(embodiment 7)

Below describe with regard to another embodiment of the present invention.At this, be convenient explanation, for above-mentioned embodiment in have an identical function parts give identical parts label and omit its explanation.

At first, (a) among Figure 24 be, the synoptic diagram of an example of the display panel of expression reference resolution, (b) among Figure 24 be, represent a routine synoptic diagram of the display panel of the resolution different with reference resolution.

At this, the resolution (reference resolution) of the display panel shown in (a) among Figure 24 is 176ppi, is employed so far display panel.And the resolution (predetermined resolution) of the display panel shown in (b) among Figure 24 is 300 ~ 350ppi, is the panel that will use from now on.

Among the present invention; According to identification demonstration inequality is people's eyes; Can not receive the high definition restriction on the principle and applicable common correcting pattern, for the display panel of different resolution, the suitable correction data generating algorithm of having used common N Reference Alignment data.Thus,, change the suitable pattern of correction data a little, can the present invention be adapted to widely the panel of various uses according to high definition.

Secondly, based on (c) among Figure 24 and (d), to uneven and an example generate the algorithm of correction data according to the N Reference Alignment data describes in order to proofread and correct wire.

Generating in the algorithm of the correction data shown in (d) among Figure 24 according to the N Reference Alignment data shown in (c) among Figure 24; With resolution is each pixel that correcting area comprised of 2 times display panel of reference resolution; With 4 pixels is that unit is cut apart, and is applicable to that as 1 unit picture element the N Reference Alignment data get final product with 4 pixels.

Thus; Can each adjusted the number of correction pixels (black circular pixel) and not increase to 4 times in the lump as the number of each pixel (white circular pixel) of adjustment correction pixels, be 2 times the corresponding correction data of display panel of reference resolution thereby can generate simply with resolution.

In above-mentioned algorithm, when wire does not cause by n bar source electrode line, also only need the correction data of 1 source electrode line of storage to get final product, therefore required memory capacity is reduced to 1/n.

Secondly, based on (e) ~ (g) among Figure 24, to uneven and another example generate the algorithm of correction data according to the N Reference Alignment data describes in order to proofread and correct wire.

For the algorithm that generates the correction data shown in (f) among Figure 24 according to the N Reference Alignment data shown in (e) among Figure 24, can adopt with Figure 24 in (c) and (d) same algorithm.

Secondly; Generating in the algorithm of the correction data shown in (g) among Figure 24 according to the N Reference Alignment data shown in (e) among Figure 24; The uneven correcting area of wire is divided into a plurality of cut zone; Make only to comprise 1 adjustment correction pixels in the cut zone, and utilize the pitch information at the interval between the immediate adjustment correction pixels of expression.

In the example shown in (g) among Figure 24, each cut zone is not made up of for each pixel (not having to add the pixel that oblique line is arranged) of adjusting correction pixels with 41 the adjustment correction pixels pixel of oblique line (additional have).

And, being spaced apart between immediate adjustment correction pixels, the interval (pitch information) of 1 pixel in per 5 pixels.

And; Can know through comparing example shown in (f) among Figure 24 and the example shown in (g) among Figure 24; No matter adopt any algorithm; The ratio of 1 pixel in per 5 pixels (corrected rate promptly need be selected as the ratio between the number of number and the pixel that correcting area is comprised of adjustment correction pixels) can not change.

In the above-mentioned algorithm, compare to and carry out specific and generation N Reference Alignment data conditions, can significantly reduce the quantity of information of N Reference Alignment data self position of uneven all the adjustment correction pixels that comprised of wire.

And, as correction data, except pitch information, usually also need be about in the uneven pixel that is comprised of wire, which pixel as the adjustment correction pixels of spacing reference position, offset information (with reference to (g) among Figure 24).Yet, when generating correction data, in the time can producing the reference position of spacing automatically, do not need above-mentioned offset information.

In order to address the above problem; Store predefined, corresponding N Reference Alignment data in the correction data storage part 31 in this embodiment, and be used for generating with the 21 correction datas expansions corresponding, correction data of the display panel of predetermined resolution and use information according to these N Reference Alignment data with the display panel of reference resolution.

And, generate the corresponding N Reference Alignment data of display panel with reference resolution in advance, can be irrelevant generate correction data with the resolution of display panel 21 (that is, with whether be that high definition is irrelevant).Therefore, need not the display frame different, set up the algorithm that is used to generate correction data each resolution.

(embodiment 8)

Below, describe with regard to another embodiment of the present invention.At this, be convenient explanation, for above-mentioned embodiment in have an identical function parts give identical parts label and omit its explanation.

And, among Figure 26, enumerated the example that detects 5 brightness disproportionation zone No1 ~ No5.And the size of brightness disproportionation zone No1 ~ No5 is according to the size of detected mottled brightness disproportionation and difference.And, No1 among this figure: (X1, Y1; Pattern A) (the X1 in; X2) centre coordinate of expression brightness disproportionation zone No1, pattern (correcting pattern information, N Reference Alignment data) A representes; Brightness disproportionation zone No1 has selected pattern A according to the size in brightness disproportionation zone in predetermined correcting pattern information.State behind pattern shown in this figure (correcting pattern information, N Reference Alignment data) A ~ C.

Yet, the size of mottled brightness disproportionation, irrelevant with the high definition of panel usually, roughly remain unchanged, for example about 1.5 ~ 3.0mm.Therefore, the size of brightness disproportionation zone No1 ~ No5 also is about about 1.5 ~ 3.0mm.

At this, " information is used in the correction data expansion " is, is used under the situation of fixed correction rate, generates the information of utilizing with the display panel 21 corresponding correction datas of predetermined resolution according to the N Reference Alignment data.And " corrected rate " be, in the pixel that correcting area comprised, needs the ratio between the number of the number of selecteed adjustment correction pixels and the pixel that this correcting area is comprised at least in order to change the GTG value.Brightness value when the display panel of reference resolution shows corresponding to inspection with the image of view data and corresponding to the appropriate brightness value of this inspection with view data between obtain luminance difference, be somebody's turn to do " corrected rate " can be according to the display panel demonstration of this luminance difference and reference resolution the size of ratio between the brightness value that is equivalent to 1 GTG value during corresponding to the image checked with view data calculate.And; " correcting area " is; At least a portion brightness disproportionation in the brightness disproportionation zone is regional, or comprises the zone of this part brightness disproportionation zone and its neighboring area, and; Above-mentioned brightness disproportionation zone is, and corresponding to the zone that image showed of inspection with the appropriate brightness value different brightness value of view data.

At this, based on (a) among Figure 27 and (b), the algorithm example that generates correction data according to the N Reference Alignment data in order to proofread and correct mottled brightness disproportionation is described.

According to the N Reference Alignment data shown in (a) among Figure 27; Generate in the algorithm of the correction data shown in Figure 17 (b); Each pixel that correcting area comprised that with resolution is 2 times display panel of reference resolution is that a unit is cut apart with 4 pixels; And with 4 pixels as 1 unit picture element, be applicable to that the N Reference Alignment data get final product.

Thus; In fact can be with the number of adjustment correction pixels (black circular pixel) and do not increase to 4 times for the number of each pixel (white circular pixel) of adjustment correction pixels, be 2 times the corresponding correction data of display panel of reference resolution thereby can generate simply with resolution.And this algorithm is applicable to above-mentioned Figure 14 ~ uneven bearing calibration shown in Figure 17.

In above-mentioned algorithm,, thereby can reduce the quantity of information of correction data significantly because available 1 positional information is represented the positional information separately of n * n pixel.

Secondly, (d) other examples of the N Reference Alignment data that are used to proofread and correct mottled brightness disproportionation are described based on (c) among Figure 27.In this embodiment; With regard to reference resolution is 176ppi; The size of rectangular area is 1.5mm * 1.5mm; All pixel counts are that the situation of 16 * 16 pixels describes, but the big I of rectangular area is set at arbitrary value according to the size of mottled brightness disproportionation in the scope of 1.5mm * 1.5mm ~ 3.0mm * 3.0mm.

At this, if the rectangular area is divided into 4 * 4 cut zone, the number of the pixel that then each cut zone comprised is 4 * 4 pixels.At this, the number with the adjustment correction pixels that cut zone comprised is called correction intensity.

Yet; In order to save the quantity of information of correction data; Can omit corresponding in the correcting pattern information of each cut zone about the information configured of adjustment correction pixels, the information of a storage representation correction intensity reads corresponding correcting pattern information from the information of expression correction intensity.

Setting above-mentioned correcting pattern information is because the concentration of brightness disproportionation is different because of display panel, is necessary the degree according to brightness disproportionation, and each display panel is set correction intensity.

And in each the correcting pattern information shown in (c) among Figure 27, the adjustment correction pixels is decentralized configuration spatially.This correcting pattern information can be utilized 0 ~ 15 numeral, the simple generation according to the dither matrix of rectangular dispersed arrangement.In detail; If " intensity n (n is a natural number) "; Then can the numerical value in the numeral " n " in the dither matrix (dither matrix) and the dither matrix be compared, with the pixel of the position that is positioned at the following numerical value of n in the dither matrix as the adjustment correction pixels.And, can be to R, G, the different dither matrix of B preparation.

(d) expression among Figure 27 to each cut zone that the rectangular area comprised of 1.5mm * 1.5mm, is suitable for an example of the correction matrix (correcting pattern information) of correcting pattern information.

And, in each correction matrix shown in (d) among Figure 27, the closer to the position at the center of correction matrix, the correcting pattern information that suitable correction intensity is big more.And according to pattern (N Reference Alignment data, correcting pattern information) A ~ D, it is big that correction matrix becomes successively.

In this embodiment, in order to reduce the capacity of nonvolatile memory, as correction matrix, according to size and the positive negativity of proofreading and correct, 8 kinds of utilizing the pattern A ~ D shown in (d) among Figure 27.At this moment, the data mode of correction data is shown in figure 14, is (the position coordinates of rectangular area; Expression correction matrix kinds of information)=(X1, Y1; Pattern A), (X2, Y2; Pattern A) ...

Secondly,, explain, generate another example of the algorithm of correction data according to the N Reference Alignment data in order to proofread and correct mottled brightness disproportionation based on Figure 28.

Secondly, based on (c) among Figure 28, the method for deleting of data among the pattern A-1 is described.Shown in (c) among Figure 28; Each cut zone that is comprised for pattern A-1; With per 4 cut zone during as 1 unit cut zone; In 4 identical cut zone of correcting pattern information, only stay the correcting pattern information that is positioned at " upper left ", deletion is positioned at the correcting pattern information of " left side is down " " upper right " " bottom right ".Then; When generating correction data; Can be according in 4 cut zone; Be positioned at the correcting pattern information of " upper left ", the correcting pattern information identical with the correcting pattern information that is positioned at " upper left " is applicable to the cut zone that is positioned at " left side down " " upper right " " bottom right ", get final product as correcting pattern information.

At this, among the pattern A,, there are 16 correcting pattern information corresponding to each cut zone, among the pattern A-1, there are 64 correcting pattern information in each cut zone.

But the pattern of utilization deleted data from pattern A-1 (information, N Reference Alignment data are used in the correction data expansion) A-2 only needs 16 correcting pattern information of storage, thereby can significantly reduce the quantity of information of correction data.

And, generate the corresponding N Reference Alignment data of display panel with reference resolution in advance, can be irrelevant generate correction data with the resolution of display panel 21 (that is, with whether be that high definition is irrelevant).Therefore, need not the display frame different to each resolution, establishment is used to generate the algorithm of correction data.

(embodiment 9)

Below, describe with regard to another embodiment of the present invention.At this, explanation for ease, for above-mentioned embodiment in have an identical function parts give identical parts label, and omit its explanation.

(being applicable to that high gray shows)

For example, when the picture signal of the GTG value of the specific pixel of 6 bit GTGs is " 110110 (54) ", utilize correction signal " 00001 (+1) " to carry out timing, shows signal is " 110111 (55) ".And, be adapted to the method for GTG value of the specific pixel of 8 bit GTGs as above-mentioned correcting algorithm, can " 00 " be added at last end of the 6 bit GTG signals that are expressed as 2 systems.

At this moment, for example, picture signal is " 11011000 (216) ", and correction signal is " 00000100 (+4) ".And the shows signal of this moment is " 11011100 (220) ".

As stated,, change the suitable pattern of proofreading and correct a little, can be adapted to the panel of various display patterns (purposes) widely according to GTG.

(embodiment 10)

Below just another embodiment of the present invention describe.At this, explanation for ease, for above-mentioned embodiment in have an identical function parts give identical label, and omit explanation.

And; Be provided in the medium-sized of handheld electronic apparatus etc.; In the small-sized display device; The display device that exists RGB employing 6 bit image signals of all kinds to show, in the picture signal of this display device, the fabric width of the brightness value between each GTG is greater than the display device of RGB employing 8 bit image signals of all kinds etc.Therefore, it is in the majority less than the situation of the value suitable with 1 GTG of picture signal to be used for the uneven corrected value of correcting luminance, and in this case, because correcting value is not enough or correcting value is too much, suitably correcting luminance is uneven.

Therefore; In this embodiment, for shooting condition determination device, the shooting condition determining method of the shooting condition that is used to determine filming apparatus for the brightness disproportionation of suitably proofreading and correct display frame and possess and have the uneven corrective system of this shooting condition determination device to describe.

Figure 32 be expression have in this embodiment shooting condition determination device 100 (with reference to after Figure 31 of stating) the skeleton diagram of schematic configuration of uneven means for correcting.

At this; Shooting condition determination device 100 is; Determine the device of shooting condition that the inspection that display panel 21 is shown is taken with image, shoot part (filming apparatus) 12 for the brightness disproportionation of proofreading and correct display panel (display frame) 21 as detected object; It has pixel than calculating part (computing unit) 120, function configuration part (setup unit) 130, imaging condition determining section (decision unit) 140.When shoot part 12 is taken 2 the hypothesis shooting conditions of inspection when using image as height Z1 (the 1st hypothesis shooting condition) and height Z2 (the 2nd supposes shooting condition); Pixel than calculating part (computing unit) 120 height Z1 and the height Z2 on; Calculate photograph in the capturing element of shoot part 12 inspection with the shared ratio of the parts number of the capturing element of image as the pixel ratio, promptly compare and the 2nd pixel ratio as the 1st pixel respectively.In the coordinate system that between remarked pixel ratio and hypothesis shooting condition, concerns; Is the 1st shooting point (P1) by pixel than calculating part 120 the 1st pixel ratio that calculates and the point that height Z1 representes; Is the 2nd shooting point (P2) by pixel than calculating part 120 the 2nd pixel ratio that calculates and the point that height Z2 representes; Function configuration part 130 will be set at the shooting condition determining function L that is used to determine shooting condition to the inverse ratio curve of taking point (P2) through the 1st shooting point (P1) and the 2nd.In the shooting condition determining function L that function configuration part 130 sets, imaging condition determining section 140 decision with pixel than for the hypothesis shooting condition Q1 (or Q2) of integer as shooting condition.

(schematic configuration of uneven corrective system 200)

[schematic configuration of shooting condition determination device 100]

Figure 35 is, for the chart of the shooting condition determining function (L) that is used to determine shooting condition is described.Transverse axis is represented height (Z), longitudinal axis remarked pixel ratio.

[action of shooting condition determination device 100]

[effect of shooting condition determination device 100]

In addition, shooting condition is when taking multiplying power, and distance adjusting means 250 has regulates the function of taking multiplying power.At this moment, distance adjusting means 250 is regulated the method for taking multiplying power and is not done qualification, the prior art in the every field capable of using.

(embodiment 11)

Below, describe with regard to another embodiment of the present invention.At this, explanation for ease, for above-mentioned embodiment in have an identical function parts give identical label, and omit explanation.

[about uneven treatment for correcting]

At first, before uneven treatment for correcting described, the flow process before the uneven treatment for correcting operation is described based on Figure 42.Figure 42 is for the process flow diagram of uneven treatment for correcting operation panel inspection before is described.

At first, at S200, carry out the inspection of lighting a lamp of display panel.At this, display panel is liquid crystal indicator, plasma display or OLED display etc., has to be configured to rectangular a plurality of image element circuits.

As aforementioned recording medium, can utilize such as tape classes such as magnetic tape, cartridges; Comprise floppy disk, the dish class of CD such as magnetic plate such as hard disk and CD-ROM/MO/MD/DVD/CD-R; The card class of IC-card (comprising storage card)/light-card etc.; Or mask-type ROM (mask ROM)/EPROM/EEPROM/ flash memory semiconductor memory classes such as (flash ROM) etc.

And; In above-mentioned each embodiment; Explained that the present invention is applicable to the situation of liquid crystal indicator; Yet applicable object of the present invention is not limited thereto, and also goes for for example plasma display, OLED display, surface conductive type electronic emission element display device such as (SED:Surface-conduction Electron-emitter Display).

And the present invention is not limited to above-mentioned each embodiment, can carry out various variations according to the scope shown in the claim, suitably makes up the technological means that different embodiment records and narrates and the embodiment that obtains also is contained within the technical scope of the present invention.

For addressing the above problem, display device of the present invention possesses in order to show the display frame of the image corresponding with display image data; In order to the drive control part that the show state of each pixel of above-mentioned display frame is controlled; This display device is characterised in that: possess; The correction data storage part; To storing with the correction data that view data made based on inspection; Wherein, for the brightness disproportionation zone of at least a portion in the brightness disproportionation zone, above-mentioned correction data is used to the data of pixel contained in the correcting area are proofreaied and correct; So that image the brightness value when being shown corresponding with above-mentioned display image data; And be able to dwindle corresponding to the difference between the appropriate brightness value of this display image data, above-mentioned brightness disproportionation zone is, making when being shown in above-mentioned display frame with above-mentioned inspection with the corresponding image of view data; Be the zone that image showed of different brightness values corresponding to above-mentioned inspection with the appropriate brightness value of view data, above-mentioned correcting area is in the above-mentioned display image data, with the brightness disproportionation corresponding zone, zone of above-mentioned at least a portion or comprised the zone of the neighboring area in this brightness disproportionation zone and this brightness disproportionation zone; View data correction portion; In the time will making the image corresponding be shown in above-mentioned display frame with above-mentioned display image data; Based on the correction data of storing in the above-mentioned correction data storage part; Above-mentioned display image data is proofreaied and correct; So that the GTG value of at least a portion pixel in the contained pixel of above-mentioned correcting area changes, and the one part of pixel in above-mentioned view data correction portion the pixel that above-mentioned correcting area is contained is chosen as the adjustment correction pixels; And the feasible correcting value that the GTG value of adjustment correction pixels is proofreaied and correct; Different with the correcting value that the GTG value of contained pixel except that the adjustment correction pixels in this correcting area is proofreaied and correct, above-mentioned drive control part is controlled the show state of above-mentioned each pixel, makes that the corresponding image of display image data after proofreading and correct with above-mentioned view data correction portion is able to demonstration.

In said structure; Be stored in the correction data storage part based on inspection in advance with the correction data that view data made; Wherein, Brightness disproportionation zone about at least a portion in the brightness disproportionation zone; Correction data be used to as correcting area, proofread and correct with the data of contained pixel in the corresponding zone, brightness disproportionation zone of above-mentioned at least a portion of display image data; Or be used to proofreading and correct as the data of the contained pixel in the zone of neighboring area correcting area, that comprised this brightness disproportionation zone and this brightness disproportionation zone; So that the image corresponding with display image data when being shown brightness value and be able to dwindle corresponding to the difference between the appropriate brightness value of this display image data, above-mentioned brightness disproportionation zone is making when being shown in above-mentioned display frame with above-mentioned inspection with the corresponding image of view data, with the zone that image showed that is different brightness values corresponding to above-mentioned inspection with the appropriate brightness value of view data.In the time will making the image corresponding be shown in above-mentioned display frame with above-mentioned display image data; View data correction portion is based on the correction data of storing in the correction data storage part; Above-mentioned display image data is proofreaied and correct, so that the GTG value of at least a portion pixel in the contained pixel of above-mentioned correcting area changes.At this moment; One part of pixel in view data correction portion the pixel that correcting area is contained is chosen as the adjustment correction pixels, and makes to the correcting value of the GTG value of adjustment correction pixels different with the correcting value to the GTG value of the contained pixel except that adjusting correction pixels of this correcting area.

So; Can make the people visual to the effect of image approach: make the brightness value of all pixels in the correcting area increase identically or reduce less than the brightness value suitable with 1 GTG of display image data (in other words, be equivalent to fraction part in the display image data non-be 0 GTG value, brightness value) the back effect of resulting image.Promptly; Can simulation ground realize will to the brightness value of all pixels in the correcting area proofread and correct identically less than the brightness value suitable with 1 GTG of display image data (in other words, be equivalent to fraction part in the display image data non-be 0 GTG value, brightness value).Therefore can prevent visual definitely to brightness disproportionation.

In addition, above-mentioned view data correction portion also can be so that above-mentioned adjustment correction pixels form with non-dense set in above-mentioned correcting area scatter each other when selecting respectively to adjust correction pixels.

According to said structure; Position through the adjustment correction pixels in the dispersion corrected zone; Can make the people visual to the effect of image more approach: make the brightness value of all pixels in the correcting area increase identically or reduce less than the brightness value suitable with 1 GTG of display image data (in other words, be equivalent to fraction part in the display image data non-be 0 GTG value, brightness value) the back effect of resulting image.

In addition, above-mentioned view data correction portion also can make the pixel of selecting as above-mentioned adjustment correction pixels in above-mentioned correcting area, change with each scheduled period.

According to said structure; Through change the position of the adjustment correction pixels in the correcting area with each scheduled period; Can make the people visual to the effect of image more approach: make the brightness value of all pixels in the correcting area increase identically or reduce less than the brightness value suitable with 1 GTG of display image data (in other words, be equivalent to fraction part in the display image data non-be 0 GTG value, brightness value) the back effect of resulting image.

In addition; About above-mentioned difference be below the brightness value suitable with 1 GTG of above-mentioned display image data, correcting area; Above-mentioned view data correction portion carries out the correction that at least 1 GTG changes to the GTG value of above-mentioned adjustment correction pixels; And for the GTG value of the pixel except that above-mentioned adjustment correction pixels in this correcting area, above-mentioned view data correction portion does not proofread and correct.For example; About the ratio between the suitable brightness value of 1 GTG of above-mentioned difference and above-mentioned display image data be below 1, correcting area, above-mentioned view data correction portion can be above-mentioned adjustment correction pixels with the pixel selection with big or small corresponding ratio above-mentioned ratio in the contained pixel of this correcting area.

According to each above-mentioned structure, can make the people visual to the effect of image more approach: make the brightness value of all pixels in the correcting area increase identically or reduce effect less than resulting image behind the brightness value suitable with 1 GTG of display image data.That is, can realize the brightness value of all pixels in the correcting area is proofreaied and correct identically in simulation ground: less than the brightness value suitable with 1 GTG of display image data.

According to said structure, can make the people visual to the effect of image more approach: with the brightness value of all pixels in the correcting area change over identically the fraction part that is equivalent in the display image data non-be 0 GTG value, the effect of resulting image behind the brightness value.That is, can simulation ground realize the brightness value of all pixels in the correcting area is implemented to proofread and correct: be equivalent to fraction part in the display image data non-be 0 GTG value, brightness value.

In addition; About above-mentioned difference surpass the suitable brightness value of 1 GTG of above-mentioned display image data, correcting area; Above-mentioned view data correction portion carries out the correction more than 2 GTGs to the GTG value of above-mentioned adjustment correction pixels; And for the GTG value of the pixel except that above-mentioned adjustment correction pixels in this correcting area, above-mentioned view data correction portion does not proofread and correct.For example; Surpass 1 correcting area about the ratio between the suitable brightness value of 1 GTG of above-mentioned difference and above-mentioned display image data; Above-mentioned view data correction portion; Make above-mentioned ratio obtain remove calculating the result divided by the Integer n more than 2, and with in this correcting area to remove pixel selection of calculating the corresponding ratio of result with this be above-mentioned adjustment correction pixels, and make the GTG value of selected adjustment correction pixels carry out the n GTG to change; Wherein, above-mentioned Integer n is that the resulting result that remove to calculate is the integer below 1 after making above-mentioned ratio divided by Integer n.

According to said structure, can make the people visual to the effect of image more approach: with the brightness value of all pixels in the correcting area change over identically the fraction part that is equivalent in the display image data non-be 0 GTG value, the effect of resulting image behind the brightness value.That is, can simulation ground realize the brightness value of all pixels in the correcting area is implemented to proofread and correct: be equivalent to fraction part in the display image data non-be 0 GTG value, brightness value.

In addition; Include in the above-mentioned correction data in order to the information of the position of representing above-mentioned correcting area or the position of representing above-mentioned correcting area and scope and in order at least one the information in expression ratio, ratio, the classification results; This ratio is that above-mentioned difference is with respect to the ratio between the suitable brightness value of 1 GTG of above-mentioned display image data; This ratio does; Calculate with the big or small corresponding of above-mentioned ratio the quantity of the above-mentioned adjustment correction pixels that will select with respect to the ratio of the quantity of the contained pixel of above-mentioned correcting area; This classification results does, is categorized into wherein one group the classification results in a plurality of groups according to above-mentioned difference with respect to the above-mentioned correcting area of big young pathbreaker of the ratio between the suitable brightness value of 1 GTG of above-mentioned display image data.

According to said structure, the degree of the deviation of luminance values in brightness disproportionation zone is corresponding in the quantity that can make selected adjustment correction pixels and the correcting area, therefore can prevent visual to brightness disproportionation.

In addition; Include in the above-mentioned correction data in order to the information of the position of representing above-mentioned correcting area or the position of representing above-mentioned correcting area and scope and in order to presentation class result's information; Wherein, Above-mentioned classification results is represented the classification that above-mentioned correcting area is carried out and above-mentioned correcting area is categorized into wherein a group in a plurality of groups; And above-mentioned classification is to carry out with respect to the size of the ratio between the suitable brightness value of 1 GTG of above-mentioned display image data according to above-mentioned difference, above-mentioned view data correction portion according to above-mentioned correction data and corresponding above-mentioned each group the configuration pattern of predefined, above-mentioned adjustment correction pixels select above-mentioned adjustment correction pixels.

According to said structure, the degree of the deviation of luminance values in brightness disproportionation zone is corresponding in the quantity that can make selected adjustment correction pixels and the correcting area, therefore can prevent visual to brightness disproportionation.

In addition, above-mentioned view data correction portion can constitute to be possessed: the 1st correction portion, proofread and correct in order to the strip brightness disproportionation that exists that on vertical direction or horizontal direction, extends above-mentioned display frame; The 2nd correction portion proofreaies and correct in order to the mottled brightness disproportionation that locality in the above-mentioned display frame is existed.

According to said structure, can strip brightness disproportionation and mottled brightness disproportionation all be corrected to the degree that is difficult to by visual one-tenth brightness disproportionation.In addition; For example; Even with different, also can carry out treatment for correcting effectively based on this two correction data in order to the decision algorithm of the data mode of the correction data of proofreading and correct mottled brightness disproportionation or correction pixels in order to the decision algorithm of the data mode of the correction data of proofreading and correct the strip brightness disproportionation or correction pixels.

For addressing the above problem; Brightness disproportionation bearing calibration of the present invention is in order to proofread and correct the brightness disproportionation of the display frame that display device possessed; Wherein, Above-mentioned display frame is in order to show the image corresponding with display image data, and this brightness disproportionation bearing calibration is characterised in that: comprise correction data storage operation; To storing with the correction data that view data made based on inspection; Wherein, for the brightness disproportionation zone of at least a portion in the brightness disproportionation zone, above-mentioned correction data is used to the data of contained pixel in the correcting area are proofreaied and correct; So that image the brightness value when being shown corresponding with above-mentioned display image data; And be able to dwindle corresponding to the difference between the appropriate brightness value of this display image data, above-mentioned brightness disproportionation zone is, making when being shown in above-mentioned display frame with above-mentioned inspection with the corresponding image of view data; Be the zone that image showed of different brightness values corresponding to above-mentioned inspection with the appropriate brightness value of view data, above-mentioned correcting area is in the above-mentioned display image data, with the brightness disproportionation corresponding zone, zone of above-mentioned at least a portion or comprised the zone of the neighboring area in this brightness disproportionation zone and this brightness disproportionation zone; The view data correcting process; In the time will making the image corresponding be shown in above-mentioned display frame with above-mentioned display image data; Based on the correction data of storing in the above-mentioned correction data storage part; Above-mentioned display image data is proofreaied and correct, so that the GTG value of at least a portion pixel in the contained pixel of above-mentioned correcting area changes; The drive controlling operation; Show state to above-mentioned each pixel is controlled; Make with above-mentioned view data correcting process in the corresponding image of display image data after being corrected be able to demonstration; And in above-mentioned view data correcting process; One part of pixel in the pixel that above-mentioned correcting area is contained is chosen as the adjustment correction pixels, and the feasible correcting value that the GTG value of adjustment correction pixels is proofreaied and correct, and is different with the correcting value that the GTG value of the pixel except that the adjustment correction pixels contained in this correcting area is proofreaied and correct.

In said method; Stored in advance with the image correcting data that view data made based on inspection; Wherein, Brightness disproportionation zone about at least a portion in the brightness disproportionation zone; Correction data be used to as correcting area, proofread and correct with the data of contained pixel in the corresponding zone, brightness disproportionation zone of above-mentioned at least a portion of display image data; Or be used to proofreading and correct as the data of the contained pixel in the zone of neighboring area correcting area, that comprised this brightness disproportionation zone and this brightness disproportionation zone; So that the brightness value of the image corresponding with display image data when being shown, and be able to dwindle corresponding to the difference between the appropriate brightness value of this display image data, the brightness disproportionation zone is and is the zone that image showed of different brightness values corresponding to inspection with the appropriate brightness value of view data; Corresponding to checking that the appropriate brightness value with view data is, the appropriate brightness value when being shown in display frame with the corresponding image of view data with inspection.When the image corresponding with display image data will be shown in above-mentioned display frame; Based on the above-mentioned correction data of being stored; Display image data is proofreaied and correct, so that the GTG value of at least a portion pixel in the contained pixel of correcting area changes.In addition, the one part of pixel in the contained pixel of correcting area is selected as the adjustment correction pixels, and makes GTG value correcting value to the adjustment correction pixels with different to the GTG value correcting value of the contained pixel except that adjusting correction pixels of this correcting area.

So; Can make the people visual to the effect of image approach: make the brightness value of all pixels in the correcting area increase identically or reduce less than the brightness value suitable with 1 GTG of display image data (in other words, be equivalent to fraction part in the display image data non-be 0 GTG value, brightness value) the back effect of resulting image.Promptly; Can simulation ground realize and will implement to proofread and correct identically the brightness value of all pixels in the correcting area: less than the brightness value suitable with 1 GTG of display image data (in other words, be equivalent to fraction part in the display image data non-be 0 GTG value, brightness value).Therefore can prevent visual definitely to brightness disproportionation.

Correction data implementing device of the present invention in order to make the above-mentioned correction data storage part of above-mentioned any one display device the above-mentioned correction data that will store; This correction data implementing device is characterised in that: possess; The brightness disproportionation test section; It calculates the brightness value of each pixel in photographed data and corresponding to above-mentioned inspection poor with between the appropriate brightness value of view data; Or to calculate be that unit is cut apart the brightness value of each pixel group that obtains and corresponding to checking poor with between the appropriate brightness value of view data, is pixel or pixel group more than the predetermined threshold for the above-mentioned extent that is calculated with each pixel in the above-mentioned photographed data with every several pixels, will be by the zone that set constituted of this pixel or this pixel group; Detect and be the brightness disproportionation zone; Wherein, above-mentioned photographed data is, to showing the photographed data of taking with the above-mentioned display frame of the corresponding image of view data with above-mentioned inspection and obtaining; Correction data generation portion; It makes correction data based on above-mentioned inspection with view data; Wherein, Brightness disproportionation zone at least a portion in the above-mentioned brightness disproportionation zone; Above-mentioned correction data is used to the data of pixel contained in the correcting area are proofreaied and correct; So that image the brightness value when being shown corresponding with above-mentioned display image data, and be able to dwindle corresponding to the difference between the appropriate brightness value of this display image data, above-mentioned correcting area is in the above-mentioned display image data, with the brightness disproportionation corresponding zone, zone of above-mentioned at least a portion or comprised the zone of the neighboring area in this brightness disproportionation zone and this brightness disproportionation zone; And above-mentioned correction data generation portion makes and includes in the above-mentioned correction data in order to the information of the position of representing above-mentioned correcting area and scope and in order at least one the information in expression ratio, ratio, the classification results; This ratio is that above-mentioned difference is with respect to the ratio between the suitable brightness value of 1 GTG of above-mentioned display image data; This ratio does; Calculate with the big or small corresponding of above-mentioned ratio the quantity of the above-mentioned adjustment correction pixels that will select with respect to the ratio of the quantity of the contained pixel of above-mentioned correcting area; This classification results does, is categorized into wherein one group the classification results in a plurality of groups according to above-mentioned difference with respect to the above-mentioned correcting area of big young pathbreaker of the ratio between the suitable brightness value of 1 GTG of above-mentioned display image data.

In addition; Correction data creating method of the present invention in order to make the above-mentioned correction data storage part of the above any one display device the above-mentioned correction data that will store, correction data creating method of the present invention is characterised in that and comprises: the operation that will be shown in above-mentioned display frame with inspection with the corresponding image of view data; Above-mentioned display frame when showing with above-mentioned inspection with the corresponding image of view data is taken to obtain the operation of photographed data; Brightness disproportionation detects operation; The brightness value of each pixel of calculating in above-mentioned photographed data and corresponding to above-mentioned inspection poor with between the appropriate brightness value of view data; Or to calculate be that the brightness value of each pixel group that obtains is cut apart and corresponding to checking poor with between the appropriate brightness value of view data in unit with each pixel in the above-mentioned photographed data with every several pixels; For the above-mentioned extent that is calculated is pixel or pixel group more than the predetermined threshold, and will be detected by the zone that set constituted of this pixel or this pixel group is the brightness disproportionation zone; Correction data generates operation; Make correction data based on above-mentioned inspection with view data; Wherein, Brightness disproportionation zone at least a portion in the above-mentioned brightness disproportionation zone; Above-mentioned correction data is used to the data of pixel contained in the correcting area are proofreaied and correct; So that image the brightness value when being shown corresponding with above-mentioned display image data, and be able to dwindle corresponding to the difference between the appropriate brightness value of this display image data, above-mentioned correcting area is in the above-mentioned display image data, with the brightness disproportionation corresponding zone, zone of above-mentioned at least a portion or comprised the zone of the neighboring area in this brightness disproportionation zone and this brightness disproportionation zone; And; Generate in the operation in above-mentioned correction data; Make and include in the above-mentioned correction data in order to the position of representing above-mentioned correcting area and the information of scope; And in order at least one the information in expression ratio, ratio, the classification results; This ratio be above-mentioned difference with respect to the ratio between the suitable brightness value of 1 GTG of above-mentioned display image data, this ratio does, calculate with the big or small corresponding of above-mentioned ratio the quantity of the above-mentioned adjustment correction pixels that will select with respect to the ratio of the quantity of the contained pixel of above-mentioned correcting area; This classification results does, is categorized into wherein one group the classification results in a plurality of groups according to above-mentioned difference with respect to the above-mentioned correcting area of big young pathbreaker of the ratio between the suitable brightness value of 1 GTG of above-mentioned display image data.

Through above-mentioned correction data implementing device and correction data creating method; Can make at least one the information that includes in order in expression ratio, ratio, the classification results; This ratio is that above-mentioned difference is with respect to the ratio between the suitable brightness value of 1 GTG of above-mentioned display image data; This ratio does; Calculate with the big or small corresponding of above-mentioned ratio the quantity of the above-mentioned adjustment correction pixels that will select with respect to the ratio of the quantity of the contained pixel of above-mentioned correcting area; This classification results does, is categorized into wherein one group the classification results in a plurality of groups according to above-mentioned difference with respect to the above-mentioned correcting area of big young pathbreaker of the ratio between the suitable brightness value of 1 GTG of above-mentioned display image data.Therefore, when the image corresponding with display image data will be shown in above-mentioned display device, can select above-mentioned adjustment correction pixels, thereby can rightly brightness disproportionation be proofreaied and correct to being difficult to by the visual degree that arrives based on this correction data.

In addition; Correction data implementing device of the present invention can constitute possesses the moving average handling part; All for display frame, when moving change object pixel or object pixel crowd, carry out the computing of above-mentioned object pixel or above-mentioned object pixel crowd's moving average successively; Wherein, The computing of above-mentioned object pixel or above-mentioned object pixel crowd's moving average is, above-mentioned object pixel or above-mentioned object pixel crowd's brightness value is replaced to the mean value of the brightness value of contained pixel in the preset range zone, and this preset range zone is the zone of the preset range that has comprised above-mentioned object pixel or above-mentioned object pixel crowd in the above-mentioned photographed data; The above-mentioned moving average that above-mentioned brightness disproportionation test section is correlated with each pixel in the above-mentioned photographed data or each pixel group is regarded as the appropriate brightness value of this each pixel or this each pixel group, to carry out the detection in brightness disproportionation zone.

According to said structure, though appropriate brightness value with its in display frame the position and difference can judge definitely also whether each pixel or each pixel group belong to the brightness disproportionation zone.

In addition; Above-mentioned brightness disproportionation test section can be categorized into each pixel of above-mentioned photographed data a plurality of by the line pixel group that set constituted of arranging pixel in a predetermined direction; And the mean value of the brightness value of each pixel that each line pixel group is contained is as the brightness value of this line pixel group; About each line pixel group of brightness value and this of each the line pixel group in the above-mentioned photographed data the extent between the relevant above-mentioned appropriate brightness value be the set of the line pixel group more than the predetermined threshold, above-mentioned brightness disproportionation test section is that brightness disproportionation is regional being detected by the zone that this set constituted.

According to said structure, can judge whether each line pixel group belongs to the brightness disproportionation zone, therefore can detect the strip brightness disproportionation definitely.

In addition; Above-mentioned display frame can be the display frame of display panel; Above-mentioned display panel possesses the data signal line that a plurality of scan signal lines and a plurality of and above-mentioned each scan signal line intersect; Be formed with pixel in each zone that is divided into by said scanning signals line and above-mentioned data signal line, above-mentioned line pixel group is made up of the set of the pixel on the bearing of trend of bearing of trend that is arranged in the said scanning signals line or above-mentioned data signal line.

According to said structure, can detect definitely with display panel in scan signal line bearing of trend or data signal line bearing of trend be parallel strip brightness disproportionation.

In addition; The shape of the pairing above-mentioned correcting area of mottled brightness disproportionation that can there be locality in the above-mentioned display frame in above-mentioned correction data generation portion; Be approximated to circle or polygon, and above-mentioned correction data is included in order to the position of representing this correcting area and the information of scope.

According to said structure; The shape of the correcting area corresponding with mottled brightness disproportionation is approximated to circle or polygon; Through the position that above-mentioned correction data contained represent this correcting area and the information of scope; The size of data of correction data can be reduced, thereby the required memory capacity of correction data storage part of display device can be reduced.For example, when being approximated to border circular areas to correcting area, the center that correction data is contained represent this border circular areas and the information of radius.In addition, when becoming polygonal region to the correcting area approximate simulation, can make correction data contain the information of each vertex position of representing this polygonal region.If above-mentioned polygon is a regular polygon, can make correction data contain the center of circle and the radius of this polygonal circumscribed circle or inscribed circle.

In addition, above-mentioned correction data generation portion can make above-mentioned correction data include: correcting value that expression is proofreaied and correct the GTG value of the contained above-mentioned adjustment correction pixels of above-mentioned correcting area and correcting value that the GTG value of the contained pixel except that above-mentioned adjustment correction pixels of this correcting area is proofreaied and correct, information.

According to said structure; The correction data that is made comprise correcting value that expression proofreaies and correct the GTG value of the contained above-mentioned adjustment correction pixels of above-mentioned correcting area and correcting value that the GTG value of the contained pixel except that above-mentioned adjustment correction pixels of this correcting area is proofreaied and correct, information; Therefore display device need not to calculate above-mentioned each correcting value, so can simplify the structure of display device.

In addition; Above-mentioned correction data generation portion can be divided into a plurality of blocks with above-mentioned correcting area, and calculates above-mentioned difference with respect to the ratio between the suitable brightness value of 1 GTG of above-mentioned display image data and calculate poor between brightness value and the appropriate brightness value of above-mentioned each block in the above-mentioned photographed data; Above-mentioned correction data generation portion is by each above-mentioned block, generates in order to representing in above-mentioned ratio, aforementioned proportion, the above-mentioned classification results at least one information, and makes above-mentioned correction data comprise this information.

According to said structure, can correcting area further be divided into a plurality of blocks, and proofread and correct by each block that is partitioned into.

In addition, display device of the present invention possesses and has, display frame, and it is in order to show the image corresponding with display image data; Drive control part; Carry out treatment for correcting for above-mentioned display image data in order to the brightness disproportionation of proofreading and correct above-mentioned display frame; And based on the display image data after this treatment for correcting; Control the show state of each pixel of above-mentioned display frame; This display device is characterised in that: above-mentioned drive control part possesses the plus-minus calculating part, and above-mentioned plus-minus calculating part is the gray scale correction value of each pixel in the correction data add to the above-mentioned display image data and the brightness value corresponding pixel of this each pixel, or with the gray scale correction value of each pixel in the correction data from above-mentioned display image data with the brightness value corresponding pixel of this each pixel in subtract; Thereby carry out above-mentioned treatment for correcting; Wherein, above-mentioned gray scale correction value is in order to proofread and correct above-mentioned brightness disproportionation, and expression has the above-mentioned gray scale correction value of each pixel in the above-mentioned correction data.

In addition, the brightness disproportionation bearing calibration of display device of the present invention is proofreaied and correct in order to the brightness disproportionation to the display frame of this display device, and wherein, this display device possesses above-mentioned display frame is arranged, and it is in order to show the image corresponding with display image data; Drive control part; Carry out treatment for correcting for above-mentioned display image data in order to the brightness disproportionation of proofreading and correct above-mentioned display frame; And control the show state of each pixel of above-mentioned display frame based on the display image data after this treatment for correcting; The brightness disproportionation bearing calibration of this display device is characterised in that and comprises: the plus-minus calculation process; With the gray scale correction value of each pixel in the correction data add to the above-mentioned display image data and the brightness value corresponding pixel of this each pixel, or with the gray scale correction value of each pixel in the correction data from above-mentioned display image data with the brightness value corresponding pixel of this each pixel in subtract, wherein; Above-mentioned gray scale correction value is in order to proofread and correct above-mentioned brightness disproportionation, and expression has the above-mentioned gray scale correction value of each pixel in the above-mentioned correction data.

In above-mentioned display device and brightness disproportionation bearing calibration; With the gray scale correction value of each pixel in the correction data add to the display image data and the brightness value corresponding pixel of this each pixel; Or with the gray scale correction value of each pixel in the correction data from display image data with the brightness value corresponding pixel of this each pixel in subtract; Thereby show treatment for correcting with image; Wherein, the gray scale correction value is in order to the uneven corrected value of correcting luminance, and expression has the gray scale correction value of each pixel in the correction data.Thus, compare, need not to be provided with multiplier or bit compression circuit with above-mentioned prior art, the scale that therefore can significantly dwindle circuit, and can significantly reduce manufacturing cost.

In addition; Can be respectively imported above-mentioned plus-minus calculating part with pairing, the above-mentioned display image data of each pixel and above-mentioned correction data by tandem seriatim; Above-mentioned plus-minus calculating part can be to the brightness value of each pixel in the above-mentioned display image data of tandem input, by each pixel come to add seriatim or subtract calculate with corresponding, the above-mentioned correction data of this each pixel in the gray scale correction value of pixel.

According to said structure, can realize the treatment for correcting of display image data with the plus-minus calculating part of simple structure.

In addition, in display device of the present invention, intersect in the above-mentioned display frame and dispose a plurality of scan signal line and a plurality of data signal lines that are the configuration that is parallel to each other that are the configuration that is parallel to each other; Each cross section of said scanning signals line and above-mentioned data signal line is provided with pixel; Display device of the present invention can constitute, and possesses: RAM, and storage is corresponding to the above-mentioned display image data of 1 frame; And according to corresponding each pixel of 1 scan signal line of above-mentioned display frame; The display image data of storage is exported side by side, or, the display image data of storage is exported side by side by the group that constitutes by a plurality of pixels that each is partitioned into; Wherein, above-mentioned group is to obtain through corresponding each pixel of 1 scan signal line of cutting apart with above-mentioned display frame; Import the shift register of tandem output type side by side; Display image data output from above-mentioned RAM and 1 corresponding each pixel of scan signal line above-mentioned display frame; By the tandem output seriatim of each pixel; Above-mentioned plus-minus calculating part to above-mentioned shift register by in the above-mentioned display image data of tandem output, each pixel the seriatim brightness value of each pixel institute, by each pixel come to add one by one or subtract calculate and corresponding, the above-mentioned correction data of this each pixel in the gray scale correction value of pixel.

RAM (so-called frame buffer memory) about the above-mentioned display image data of storing 1 frame; From the output of this RAM generally by each pixel (or, by each group that obtains through corresponding each pixel of 1 scan signal line of cutting apart with above-mentioned display frame) by output side by side.By comparison; In said structure; The shift register that possesses input tandem output type arranged side by side; From RAM side by side output be transfused to into this shift register of input tandem output type side by side with the corresponding display image data of per 1 scan signal line (or each above-mentioned group), this shift register of importing the tandem output type side by side be transfused to into display image data by each pixel seriatim tandem export to plus-minus and calculate device.Thus, in the plus-minus calculating part, can be to brightness value in the display image data of tandem input, each pixel, come to add one by one or subtract the gray scale correction value of calculating the pixel in, the correction data corresponding by each pixel with this each pixel.Therefore; Even possessed: by each pixel in 1 scan signal line of display frame; Or come the RAM of output display image data side by side by each group that obtains through cutting apart each pixel in 1 scan signal line with display frame, constitute by a plurality of pixels, also can carry out treatment for correcting through the plus-minus calculating part of simple structure.

In addition, in display device of the present invention, intersect in the above-mentioned display frame and dispose a plurality of scan signal line and a plurality of data signal lines that are the configuration that is parallel to each other that are the configuration that is parallel to each other; Each cross section of said scanning signals line and above-mentioned data signal line is provided with pixel; Display device of the present invention possesses and has, RAM, storage by above-mentioned plus-minus calculating part imposed after the above-mentioned treatment for correcting, corresponding to the above-mentioned display image data of 1 frame; And according to corresponding each pixel of 1 scan signal line of above-mentioned display frame; The display image data of storage is exported side by side, or, the display image data of storage is exported side by side according to the group that constitutes by a plurality of pixels that each is partitioned into; Wherein, above-mentioned group is to obtain through corresponding each pixel of 1 scan signal line of cutting apart with above-mentioned display frame; The inverse conversion handling part, to store among the above-mentioned RAM, imposed the display image data after the above-mentioned treatment for correcting by above-mentioned plus-minus calculating part, carry out the contrary of above-mentioned treatment for correcting and handle, to restore the display image data that is imposed before the above-mentioned treatment for correcting; Frame comparison portion; Compare handle the above-mentioned display image data that restored and the display image data of the 2nd frame through above-mentioned inverse conversion; Wherein, Above-mentioned the 2nd frame is next frame that will show after the display image data of storing among the above-mentioned RAM; Judge the display image data of above-mentioned the 2nd frame when above-mentioned frame comparison portion and handle the above-mentioned display image data that restored through above-mentioned inverse conversion for not simultaneously, above-mentioned plus-minus calculating part is to the brightness value of each pixel in the display image data of above-mentioned the 2nd frame, add or subtract calculate and the corresponding above-mentioned correction data of this each pixel in pixel, the gray scale correction value; Carrying out above-mentioned treatment for correcting, and with above-mentioned RAM the display image data that will store corresponding to 1 frame be updated to the display image data after the above-mentioned treatment for correcting; When above-mentioned frame comparison portion judges the display image data of above-mentioned the 2nd frame and to handle the above-mentioned display image data that is restored through above-mentioned inverse conversion is identical, do not upgrade above-mentioned RAM the display image data that will store.

According to said structure, the display image data of inverse conversion handling part after to the treatment for correcting of storing among the RAM carries out inverse conversion to be handled, to restore the display image data before the treatment for correcting.Thus; When frame comparison portion compares the display image data of display image data of present frame (display image data of storing in to RAM imposes inverse conversion and handles the resulting display image data in back) and next frame (the 2nd frame), can the display image data that is not imposed treatment for correcting be compared each other.Therefore, can judge definitely whether the display image data of present frame is identical with the display image data of next frame.In addition; Before being stored in RAM; Display image data and correction data are pressed each pixel tandem input plus-minus calculating part seriatim respectively; Therefore adding and subtracting calculating part can be to by the brightness value of each pixel in the display image data of tandem input, add or subtract calculate with the corresponding correction data of this each pixel in pixel, the gray scale correction value, to carry out treatment for correcting.Therefore, can carry out treatment for correcting through simple structure.

In addition; In the above-mentioned display frame of display device of the present invention, cross-over configuration has a plurality of scan signal line and a plurality of data signal lines that are the configuration that is parallel to each other that are the configuration that is parallel to each other, and each cross section of said scanning signals line and above-mentioned data signal line is provided with pixel; Display device of the present invention can constitute to be possessed: RAM; Store the above-mentioned display image data corresponding with 1 frame, and according to corresponding each pixel of 1 scan signal line of above-mentioned display frame, the display image data of storage is exported side by side; Or according to each group that constitutes by a plurality of pixels that is partitioned into; The display image data of storage is exported side by side, and wherein, above-mentioned group is to obtain through corresponding each pixel of 1 scan signal line of cutting apart with above-mentioned display frame; Tandem is imported the shift register of output type arranged side by side; For with corresponding each pixel of 1 scan signal line of above-mentioned display frame; By each pixel seriatim the above-mentioned correction data of tandem input export side by side; Above-mentioned plus-minus calculating part to from above-mentioned RAM according to 1 corresponding each pixel of scan signal line of above-mentioned display frame each pixel in the above-mentioned display image data of input side by side, add side by side or subtract calculation from above-mentioned shift register according to 1 corresponding each pixel of scan signal line institute of above-mentioned display frame side by side in the correction data of input, and the gray scale correction value of the corresponding pixel of above-mentioned each pixel.

According to said structure,, therefore the processing time can be shortened for adding side by side with 1 corresponding each pixel of scan signal line or subtracting calculation; In addition; As long as the quantity that for example makes the plus-minus that is possessed calculate device becomes the quantity with 1 corresponding pixel of scan signal line,, therefore compare with above-mentioned prior art just can realize above-mentioned plus-minus calculating part; Need not to be provided with multiplier or bit compression circuit, can carry out the correction of display image data through simple structure.

In addition; Above-mentioned drive control part can constitute to be possessed: correction data generates uses data store; In order to being generated, correction data stores with data; Wherein, It is the data in order to the generation correction data that above-mentioned correction data generates with data, and for the brightness disproportionation zone of at least a portion in the brightness disproportionation zone, above-mentioned correction data is used to the GTG value of pixel contained in the correcting area is proofreaied and correct; So that image the brightness value when being shown corresponding with above-mentioned display image data; And be able to dwindle corresponding to the difference between the appropriate brightness value of this display image data, above-mentioned brightness disproportionation zone is, making when being shown in above-mentioned display frame with above-mentioned inspection with the corresponding image of view data; Be the zone that image showed of different brightness values corresponding to above-mentioned inspection with the appropriate brightness value of view data, above-mentioned correcting area is in the above-mentioned display image data, with the brightness disproportionation corresponding zone, zone of above-mentioned at least a portion or comprised the zone of the neighboring area in this brightness disproportionation zone and this brightness disproportionation zone; Correction data makes portion; In the time will making the image corresponding be shown in above-mentioned display frame with above-mentioned display image data; Use data based on above-mentioned correction data generation; Above-mentioned display image data is proofreaied and correct; So that the GTG value of at least a portion pixel in the contained pixel of above-mentioned correcting area changes; The gray scale correction value of each pixel in the correction data that above-mentioned plus-minus calculating part generates the above-mentioned correction data portion that makes add to the above-mentioned display image data and the brightness value corresponding pixel of this each pixel, or the gray scale correction value of each pixel in the correction data that the above-mentioned correction data portion that makes is generated from above-mentioned display image data with the brightness value corresponding pixel of this each pixel in subtract.

According to said structure, situation occurred when can basis being shown in display frame with inspection with the corresponding image of view data, brightness disproportionation makes correction data, and the correction data that made of correspondence is carried out the treatment for correcting of brightness disproportionation.Thus, correcting luminance is uneven definitely.

In addition; In display device of the present invention; In the above-mentioned display frame, cross-over configuration has a plurality of scan signal line and a plurality of data signal lines that are the configuration that is parallel to each other that are the configuration that is parallel to each other, and each cross section of said scanning signals line and above-mentioned data signal line is provided with pixel; Above-mentioned correction data generation can constitute with data store to be possessed: the 1st correction data generates uses data store; Its storage generates in order to the 1st correction data that generates the 1st correction data and use data, wherein, above-mentioned the 1st correction data be used to proofread and correct in the above-mentioned display frame, with the direction of data-signal line parallel on extend the strip brightness disproportionation of existence; The 2nd correction data generates uses data store, and its storage generates in order to the 2nd correction data that generates the 2nd correction data and uses data, and wherein, above-mentioned the 2nd correction data is used to proofread and correct the mottled brightness disproportionation that locality exists in the above-mentioned display frame; The above-mentioned correction data portion of making possesses; The 1st correction data makes portion; In the time will making the image corresponding be shown in above-mentioned display frame, generate above-mentioned the 1st correction data based on above-mentioned the 1st correction data generation with data, wherein with above-mentioned display image data; Above-mentioned the 1st correction data is used to proofread and correct above-mentioned display image data, so that change with the GTG value of at least a portion pixel in the contained pixel of the corresponding above-mentioned correcting area of strip brightness disproportionation; The 2nd correction data makes portion; In the time will making the image corresponding be shown in above-mentioned display frame with above-mentioned display image data; Generate above-mentioned the 2nd correction data based on above-mentioned the 2nd correction data generation with data; Wherein, above-mentioned the 2nd correction data is used to proofread and correct above-mentioned display image data, so that change with the GTG value of at least a portion pixel in the contained pixel of the corresponding above-mentioned correcting area of mottled brightness disproportionation; The integration handling part; Above-mentioned the 1st correction data and above-mentioned the 2nd correction data are carried out integration; To generate the integration correction data; And above-mentioned plus-minus calculating part is with the gray scale correction value of each pixel in the above-mentioned integration correction data add to the above-mentioned display image data and the brightness value corresponding pixel of this each pixel; Or with the gray scale correction value of each pixel in the above-mentioned integration correction data from above-mentioned display image data with the brightness value corresponding pixel of this each pixel in subtract, to carry out above-mentioned treatment for correcting.

According to said structure, can proofread and correct strip brightness disproportionation and mottled brightness disproportionation through simple circuit.In addition; Owing to be respectively arranged with in order to the 1st correction data that generates the 1st correction data and make portion and make portion in order to the 2nd correction data that generates the 2nd correction data; Wherein, the 1st correction data is used to proofread and correct the strip brightness disproportionation, and the 2nd correction data is used to proofread and correct mottled brightness disproportionation.Therefore, can be through making the 1st correction data and the 2nd correction data with the corresponding algorithm of the characteristic of each brightness disproportionation.

In addition; Above-mentioned drive control part can to mean value, maximal value, minimum value and this maximal value of the GTG value of contained pixel in the above-mentioned correcting area of above-mentioned display image data and the intermediate value between this minimum value, or above-mentioned correcting area in the value of any one in mean value, maximal value, minimum value and this maximal value and the intermediate value between this minimum value of GTG value of one part of pixel of contained pixel; Compare with preset upper limit value and lower limit; In above-mentioned any one value is that above-mentioned higher limit is when above; Or be above-mentioned lower limit when following in above-mentioned any one value, the GTG value of the pixel in the above-mentioned correcting area that belongs to above-mentioned display image data is not proofreaied and correct.

In addition; Above-mentioned drive control part can compare the GTG value of contained pixel in the above-mentioned correcting area of above-mentioned display image data and preset upper limit value and lower limit; About the GTG value is that pixel and GTG value more than the above-mentioned higher limit is the pixel below the above-mentioned lower limit, and above-mentioned drive control part is not proofreaied and correct the GTG value of this pixel.

Generally speaking; The image of middle tone (the particularly image of dense grey) is when being shown, and brightness disproportionation is easier to arrived by visual, and white image (or approach white image) or the black image image of black (or approach) are when being shown; Brightness disproportionation is difficult to be arrived by visual; Therefore, if white image or black image are carried out the treatment for correcting of brightness disproportionation, conversely can be visual artificially to correcting area.By comparison, through each above-mentioned structure, the zone that can prevent to be proofreaied and correct with the treatment for correcting of brightness disproportionation is by visual arriving artificially.

The above-mentioned correction data portion of making can above-mentioned correcting area is contained pixel in one part of pixel be chosen as the adjustment correction pixels, and make correcting value that the GTG value of adjustment correction pixels is proofreaied and correct with to this correcting area contained removing to adjust the correcting value that correction pixels proofreaies and correct with the GTG value of exterior pixel different.

So; Can make the people visual to the effect of image approach: make the brightness value of all pixels in the correcting area increase identically or reduce less than the brightness value suitable with 1 GTG of display image data (in other words, be equivalent to fraction part in the display image data non-be 0 GTG value, brightness value) the back effect of resulting image.Promptly; Can simulation ground realize and will implement to proofread and correct identically the brightness value of all pixels in the correcting area: less than the brightness value suitable with 1 GTG of display image data (in other words, be equivalent to fraction part in the display image data non-be 0 GTG value, brightness value).Therefore can prevent visual definitely to brightness disproportionation.

For example; That portable electric appts possessed was medium-sized/small-sized display device etc. in; It is that the vision signal of 6 bits shows that some display device uses RGB of all kinds; But in these display device, the width of cloth of the brightness value between each GTG of vision signal is can be than RGB of all kinds to be 8 bigger than the display device of top grade.Therefore; Under more situation, can be lower than the suitable value of 1 GTG of vision signal in order to the size of the uneven corrected value of correcting luminance; So if as prior art, make the gray scale correction value in the correcting area all is same value; Just can take place correcting value deficiency or correcting value excessively, thereby correcting luminance is uneven definitely.In contrast to this; Through above-mentioned structure; Can make the people visual to the effect of image approach: make the brightness value of all pixels in the correcting area increase identically or reduce less than the brightness value suitable with 1 GTG of display image data (in other words, be equivalent to fraction part in the display image data non-be 0 GTG value, brightness value) the back effect of resulting image.Therefore more properly correcting luminance is uneven.

In addition, above-mentioned view data correction portion also can make above-mentioned adjustment correction pixels form with non-dense set in above-mentioned correcting area scatter each other when selecting respectively to adjust correction pixels.

According to said structure; Position through the adjustment correction pixels in the dispersion corrected zone; Can make the people visual to the effect of image more approach: make the brightness value of all pixels in the correcting area increase identically or reduce less than the brightness value suitable with 1 GTG of display image data (in other words, be equivalent to fraction part in the display image data non-be 0 GTG value, brightness value) the back effect of resulting image.

In addition, above-mentioned view data correction portion also can make the pixel of selecting as above-mentioned adjustment correction pixels in above-mentioned correcting area, change with each scheduled period.

According to said structure; Through change the position of the adjustment correction pixels in the correcting area with each scheduled period; Can make the people visual to the effect of image more approach: make the brightness value of all pixels in the correcting area increase identically or reduce less than the brightness value suitable with 1 GTG of display image data (in other words, be equivalent to fraction part in the display image data non-be 0 GTG value, brightness value) the back effect of resulting image.

In addition, display device of the present invention possesses: the display frame of predetermined resolution; Drive control part; Control the show state of each pixel in the display frame of above-mentioned predetermined resolution; This display device is characterised in that to possess: view data correction portion changes the GTG value of at least a portion pixel in the contained pixel of correcting area based on correction data; Thereby realize correction to display image data; Wherein, above-mentioned correction data is used to the data of pixel contained in the above-mentioned correcting area are proofreaied and correct, so that image the brightness value when being shown corresponding with above-mentioned display image data; And be able to dwindle corresponding to the difference between the appropriate brightness value of this display image data; Above-mentioned correcting area is the brightness disproportionation zone of at least a portion in the brightness disproportionation zone, or has comprised the zone of neighboring area in brightness disproportionation zone of brightness disproportionation zone and this at least a portion of this at least a portion, and above-mentioned brightness disproportionation zone is; Making when being shown in the display frame of above-mentioned predetermined resolution with the corresponding image of view data, with the zone that image showed that is different brightness values corresponding to above-mentioned inspection with the appropriate brightness value of view data with above-mentioned inspection; The correction data storage part; Information is used in its Memory Reference correction data and correction data expansion; Wherein, The said reference correction data is predefined above-mentioned correction data corresponding to the display frame of reference resolution; Above-mentioned correction data expansion is used to generate and the corresponding above-mentioned correction data of the display frame of above-mentioned predetermined resolution with information; This correction data is through fixing corrected rate and generate according to the said reference correction data, and above-mentioned corrected rate is, for a change the ratio of the quantity of GTG value and the quantity of the adjustment correction pixels that will select at least among the contained pixel of the above-mentioned correcting area pixel contained with respect to this correcting area; This ratio is to calculate according to the size of ratio; This ratio does, luminance difference is being with respect to making the image corresponding with display image data ratio between the brightness value suitable with 1 GTG when being shown in the display frame of said reference resolution, this luminance difference be feasible when checking that with view data corresponding image is shown in the display frame of said reference resolution brightness value and corresponding to the appropriate brightness value of this inspection with view data between the difference that obtains; Correction data generation portion; It uses the above-mentioned correction data expansion of being stored in the above-mentioned correction data storage part to use information; And generate above-mentioned correction data according to the said reference correction data; The above-mentioned correction data that above-mentioned view data correction portion uses above-mentioned correction data generation portion to be generated; To be chosen as the adjustment correction pixels with the one part of pixel in the contained pixel of the corresponding above-mentioned correcting area of the display frame of above-mentioned predetermined resolution; And make that the correcting value that the GTG value of adjustment correction pixels is proofreaied and correct is different with the correcting value that the GTG value of the contained pixel except that adjusting correction pixels of this correcting area is proofreaied and correct; Thereby above-mentioned display image data is proofreaied and correct, and above-mentioned drive control part is controlled the show state of above-mentioned each pixel, makes that the pairing image of display image data after proofreading and correct with above-mentioned view data correction portion is able to demonstration.

In addition; Brightness disproportionation bearing calibration of the present invention is proofreaied and correct in order to the brightness disproportionation to the display frame of the predetermined resolution that display device possessed; Brightness disproportionation bearing calibration of the present invention is characterised in that: comprise; The view data correcting process; Based on correction data the GTG value of at least a portion pixel in the contained pixel of correcting area is changed; Thereby realize the correction to display image data, wherein, above-mentioned correction data is used to the data of pixel contained in the above-mentioned correcting area are proofreaied and correct; So that image the brightness value when being shown corresponding with above-mentioned display image data; And be able to dwindle corresponding to the difference between the appropriate brightness value of this display image data, above-mentioned brightness disproportionation zone is, making and checking when being shown in the display frame of above-mentioned predetermined resolution with the corresponding image of view data; Be the zone that image showed of different brightness values corresponding to above-mentioned inspection with the appropriate brightness value of view data, above-mentioned correcting area is the zone of neighboring area in the brightness disproportionation zone of the brightness disproportionation zone of at least a portion in the above-mentioned brightness disproportionation zone or the brightness disproportionation zone that has comprised above-mentioned at least a portion and above-mentioned at least a portion; Correction data storage operation; N Reference Alignment data and correction data expansion are stored with information; Wherein, The said reference correction data is predefined above-mentioned correction data corresponding to the display frame of reference resolution; Above-mentioned correction data expansion is used to generate and the corresponding above-mentioned correction data of the display frame of above-mentioned predetermined resolution with information; This correction data is through fixing corrected rate and generate according to the said reference correction data, and above-mentioned corrected rate is, for a change the ratio between the quantity of GTG value and the quantity of the adjustment correction pixels that will select at least among the contained pixel of the above-mentioned correcting area pixel contained with respect to this correcting area; This ratio is to calculate according to the size of ratio; This ratio is, luminance difference is being with respect to making the image corresponding with display image data ratio between the brightness value suitable with 1 GTG when being shown in the display frame of said reference resolution, this luminance difference be feasible when checking that with view data corresponding image is shown in the display frame of said reference resolution brightness value and corresponding to the appropriate brightness value of this inspection with view data between the difference that obtains; Correction data generates operation, uses the above-mentioned correction data expansion of being stored in the above-mentioned correction data storage operation to use information, and generates above-mentioned correction data according to the said reference correction data; The drive controlling operation; Control the show state of each pixel in the display frame of above-mentioned predetermined resolution; So that with above-mentioned view data correcting process in the corresponding image of display image data after being corrected be able to show; In above-mentioned view data correcting process; Use above-mentioned correction data to generate the above-mentioned correction data that is generated in the operation; To be chosen as the adjustment correction pixels with the one part of pixel in the contained pixel of the corresponding above-mentioned correcting area of the display frame of above-mentioned predetermined resolution, and make that the correcting value that the GTG value of adjustment correction pixels is proofreaied and correct is different with the correcting value that the GTG value of the contained pixel except that adjusting correction pixels of this correcting area is proofreaied and correct, thereby above-mentioned display image data will be proofreaied and correct.

According to said structure or said method; In view data correction portion or in the view data correcting process; Based on correction data the GTG value of at least a portion pixel in the contained pixel of correcting area is changed, thereby realize correction, wherein above-mentioned display image data; When being shown in the display frame of predetermined resolution with the corresponding image of view data with inspection; Correction data be used to correcting area this moment contained pixel data proofread and correct so that the brightness value of the image corresponding when being shown, and be able to dwindle corresponding to the difference between the appropriate brightness value of this display image data with display image data.At this, " correcting area " be meant, in the brightness disproportionation zone brightness disproportionation of at least a portion zone or comprised the zone of neighboring area in brightness disproportionation zone of brightness disproportionation zone and above-mentioned at least a portion of above-mentioned at least a portion; The brightness disproportionation zone is and the zone that image showed that is different brightness values corresponding to inspection with the appropriate brightness value of view data.

In addition; In view data correction portion or in the view data correcting process; With the contained pixel of the corresponding correcting area of the display frame of predetermined resolution in one part of pixel be chosen as the adjustment correction pixels; And make the correcting value of the GTG value of adjustment correction pixels different with correcting value to the GTG value of the contained pixel except that adjusting correction pixels of this correcting area, thereby above-mentioned image correcting data is proofreaied and correct.

In addition; In drive control part or drive control part operation; Control the show state of each pixel in the display frame of above-mentioned predetermined resolution so that the corresponding image of the display image data of being proofreaied and correct with above-mentioned view data correction portion or with above-mentioned view data correcting process in the corresponding image of display image data after being corrected be able to show.

In other words; In said structure or method; Through expanding the gimmick that so-called shadow tone (halftone) is handled; Be chosen as the adjustment correction pixels to the one part of pixel in the contained pixel of correcting area, and make to the correcting value of the GTG value of adjustment correction pixels different with correcting value to the GTG value of the contained pixel except that adjusting correction pixels of this correcting area.

So; Can make the people visual to the effect of image approach: make the brightness value of all pixels in the correcting area increase identically or reduce less than the brightness value suitable with 1 GTG of display image data (in other words, be equivalent to fraction part in the display image data non-be 0 GTG value, brightness value) the back effect of resulting image.Promptly; Can simulation ground realize and will implement to proofread and correct identically the brightness value of all pixels in the correcting area: less than the brightness value suitable with 1 GTG of display image data (in other words, be equivalent to fraction part in the display image data non-be 0 GTG value, brightness value).Therefore can prevent visual definitely to brightness disproportionation.

In addition; Through above method; As long as the correcting value of the GTG value of merely that the correcting area of display image data is contained each adjustment correction pixels and remove the GTG value correcting value of adjusting each pixel the correction pixels and add to the brightness value of contained each pixel of this correcting area and just can; Therefore need not to be provided with multiplier or integrating circuit, and can realize simple structure.Thus, can come to proofread and correct definitely the brightness disproportionation of display device with simple circuit.

Proofread and correct the method for display image data about using above-mentioned correction data; Because the fineness of the display of display device is high more; Resolution is just high more; The increase of pixel count is also remarkable more, and therefore this Secondary cases problem of nonvolatile memory capacity can take place to exceed in order to the uneven quantity of information of correcting luminance.

For solving such Secondary cases problem; In correction data storage part or correction data storage operation, corresponding to the display frame of reference resolution predefined correction data promptly, N Reference Alignment data and be stored with information in order to the correction data expansion that generates according to these N Reference Alignment data to the correction data of the display image of predetermined resolution.

In addition; Generate in the operation in correction data generation portion or correction data; The correction data expansion of using the correction data storage part to be stored is used information with the correction data expansion of being stored in information or the correction data storage operation, generates correction data according to the N Reference Alignment data.

At this, " correction data expansion use information " is: the information of being utilized when corrected rate fixedly being generated the corresponding correction data of display frame with predetermined resolution.

In addition; " corrected rate " is; Ratio between the quantity of the pixel that the quantity of the adjustment correction pixels that will select at least among the contained pixel of correcting area in order to change the GTG value is contained with respect to this correcting area; This ratio is to calculate with respect to the size of the ratio between the suitable brightness value of 1 GTG according to luminance difference; The brightness value that this 1 GTG is suitable is; The suitable brightness value of 1 GTG when the image corresponding with display image data is shown in the display frame of reference resolution, above-mentioned luminance difference be, the brightness value when being shown in the display frame of reference resolution with inspection with the corresponding image of view data and corresponding to obtaining difference between the appropriate brightness value of this inspection with view data.

Thus, even have the display frame of the resolution different with reference resolution, also can basis and the corresponding N Reference Alignment data of the display frame of reference resolution, generate the corresponding correction data of display frame with predetermined resolution.

For example; With the corresponding correcting area of the display frame of predetermined resolution in each contained pixel be that a unit divides into groups with 4; And 1 group as 1 unit picture element, at this moment, if the N Reference Alignment data are applied to this unit picture element; Can make the quantity of the quantity of respectively adjusting correction pixels and each pixel beyond the adjustment correction pixels increase by 4 times so in fact, therefore can make the corresponding correction data of display image simply with 2 times resolution.

Therefore, as long as corresponding in advance reference resolution generates the N Reference Alignment data, regardless of the resolution of display frame (that is, no matter the height of high definition), can both generate correction data so.Therefore, need not to make in order to generate the algorithm of correction data by the display frame of each different resolution.

For example, when predetermined resolution is higher than reference resolution, can use the less N Reference Alignment data of quantity of information to generate and the corresponding correction data of high resolving power display frame.

In addition, in above-mentioned method, remove the N Reference Alignment data, also need the correction data expansion to use information.About the quantity of information of correction data expansion with information; If the algorithm when generating correction data according to reference data improves; Than direct generation and the corresponding correction data of high resolving power display frame, can significantly reduce the quantity of information of correction data expansion so with information.

Thus, no matter the height of high definition can both proofread and correct definitely the brightness disproportionation of display device with simple circuit.

In addition, display device of the present invention on the basis of said structure, corresponding to the said reference correction data respectively adjust correction pixels when being selected, above-mentioned adjustment correction pixels mode with non-dense set in above-mentioned correcting area is scatter each other.

According to said structure; Position through the adjustment correction pixels in the dispersion corrected zone; Can make the people visual to the effect of image more approach: make the brightness value of all pixels in the correcting area increase identically or reduce less than the brightness value suitable with 1 GTG of display image data (in other words, be equivalent to fraction part in the display image data non-be 0 GTG value, brightness value) the back effect of resulting image.

In addition, display device of the present invention can make as above-mentioned adjustment correction pixels and selecteed pixel changes with each scheduled period in above-mentioned correcting area and generates above-mentioned correction data on the basis of said structure.

According to said structure; Through change the position of the adjustment correction pixels in the correcting area with each scheduled period; Can make the people visual to the effect of image more approach: make the brightness value of all pixels in the correcting area increase identically or reduce less than the brightness value suitable with 1 GTG of display image data (in other words, be equivalent to fraction part in the display image data non-be 0 GTG value, brightness value) the back effect of resulting image.

In addition; Display device of the present invention is on the basis of said structure; About above-mentioned luminance difference be below the suitable brightness value of 1 GTG of above-mentioned display image data, correcting area; Above-mentioned view data correction portion can carry out the correction that 1 GTG changes at least to the GTG value of above-mentioned adjustment correction pixels, and for the GTG value of the pixel except that above-mentioned adjustment correction pixels in this correcting area, and above-mentioned view data correction portion can not proofread and correct.For example; With regard to the ratio of the suitable brightness value of 1 GTG of above-mentioned luminance difference and above-mentioned display image data be below 1, correcting area, can with in the contained pixel of this correcting area, with the pixel selection of the big or small corresponding ratio of above-mentioned ratio be above-mentioned adjustment correction pixels.

According to each above-mentioned structure, can make the people visual to the effect of image more approach: make the brightness value of all pixels in the correcting area increase identically or reduce effect less than resulting image behind the brightness value suitable with 1 GTG of display image data.That is, can realize the brightness value of all pixels in the correcting area is proofreaied and correct identically in simulation ground: less than the brightness value suitable with 1 GTG of display image data.

In addition; Display device of the present invention is on the basis of said structure; About above-mentioned luminance difference surpass the suitable brightness value of 1 GTG of above-mentioned display image data, correcting area; Above-mentioned view data correction portion can make the GTG value of each contained pixel of this correcting area change at least 1 GTG, and makes the correcting value of the GTG value of the above-mentioned adjustment correction pixels in this correcting area Duo 1 GTG at least than the correcting value of the GTG value of the pixel except that above-mentioned adjustment correction pixels in this correcting area.For example; About the ratio of the suitable brightness value of 1 GTG of above-mentioned luminance difference and above-mentioned display image data surpass 1, correcting area; Above-mentioned view data correction portion can corresponding above-mentioned ratio integral part; Make the GTG value of each contained pixel of this correcting area change at least 1 GTG; Also the pixel selection with the corresponding ratio of numerical value of in the contained pixel of this correcting area and fraction part above-mentioned ratio is above-mentioned adjustment correction pixels, and makes the correcting value of the GTG value of selected adjustment correction pixels Duo 1 GTG at least than the correcting value of the GTG value of the pixel except that the adjustment correction pixels in this correcting area.

According to above-mentioned each structure, can make the people visual to the effect of image more approach: with the brightness value of all pixels in the correcting area change over identically the fraction part that is equivalent in the display image data non-be 0 GTG value, the effect of resulting image behind the brightness value.That is, can simulation ground realize the brightness value of all pixels in the correcting area is implemented to proofread and correct: be equivalent to fraction part in the display image data non-be 0 GTG value, brightness value.

In addition; Display device of the present invention is on the basis of said structure; About above-mentioned luminance difference surpass the suitable brightness value of 1 GTG of above-mentioned display image data, correcting area; Above-mentioned view data correction portion carries out the correction more than 2 GTGs to the GTG value of above-mentioned adjustment correction pixels, and for the GTG value of the pixel except that above-mentioned adjustment correction pixels in this correcting area, and above-mentioned view data correction portion does not proofread and correct.For example; Surpass 1 correcting area about the ratio between the suitable brightness value of 1 GTG of above-mentioned luminance difference and above-mentioned display image data; Above-mentioned view data correction portion makes above-mentioned ratio obtain removing divided by the Integer n more than 2 and calculates the result; And with in this correcting area with this pixel selection of remove calculating the corresponding ratio of result be above-mentioned adjustment correction pixels; And the GTG value that makes selected adjustment correction pixels is carried out the n GTG and is changed, and wherein, above-mentioned Integer n is to satisfy resultingly after making above-mentioned ratio divided by Integer n to remove that to calculate the result be the integer below 1.

In addition; On the basis of said structure; Correction data implementing device of the present invention in order to make in the above-mentioned correction data storage part of above-mentioned display device the correction data that will store; Correction data implementing device of the present invention can constitute to be possessed: the brightness disproportionation test section; It calculates the brightness value of each pixel in photographed data and corresponding to inspection poor with between the appropriate brightness value of view data, or to calculate be that unit is cut apart the brightness value of each pixel group that obtains and corresponding to above-mentioned inspection poor with between the appropriate brightness value of view data, is pixel or pixel group more than the predetermined threshold for the above-mentioned extent that is calculated with each pixel in the above-mentioned photographed data with every several pixels; To be detected by the zone that set constituted of this pixel or this pixel group is the brightness disproportionation zone; Wherein, above-mentioned photographed data is, to showing the photographed data of taking with the above-mentioned display frame of the corresponding image of view data with above-mentioned inspection and obtaining; Correction data generation portion; It makes correction data based on above-mentioned inspection with view data; Wherein, Above-mentioned correction data is used to the data of pixel contained in the correcting area are proofreaied and correct; So that the brightness value of the image corresponding with display image data when being shown, and be able to dwindle corresponding to the difference between the appropriate brightness value of this display image data, above-mentioned correcting area is brightness disproportionation zone of at least a portion in the detected brightness disproportionation zone of above-mentioned brightness disproportionation test section or the zone that has comprised the neighboring area in brightness disproportionation zone and this a part of brightness disproportionation zone that should a part; Above-mentioned correction data generation portion makes above-mentioned correction data comprise the N Reference Alignment data and information is used in the correction data expansion; Wherein, The said reference correction data is predefined above-mentioned correction data corresponding to the display frame of reference resolution; Above-mentioned correction data expansion is used to generate and the corresponding above-mentioned correction data of the display frame of above-mentioned predetermined resolution with information; This correction data is through fixing corrected rate and generating according to the said reference correction data; Above-mentioned corrected rate is; Ratio between the quantity of the pixel that the quantity of the adjustment correction pixels that will select among the contained pixel of above-mentioned correcting area is contained with respect to this correcting area, this ratio is to calculate according to the size of ratio, and this ratio does; Luminance difference is with respect to the ratio between the brightness value suitable with 1 GTG when making that the image corresponding with display image data is shown in the display frame of said reference resolution, this luminance difference feasible when checking that with view data corresponding image is shown in the display frame of said reference resolution brightness value and corresponding to the appropriate brightness value of this inspection with view data between the difference that obtains.

According to said structure, above-mentioned correction data is contained in correction data generation portion: predefined above-mentioned correction data is the N Reference Alignment data corresponding to the display frame of reference resolution; And information is used in above-mentioned correction data expansion.

Thus, even have the display frame of the resolution different with reference resolution, also can basis and the corresponding N Reference Alignment data of the display frame of reference resolution, generate the corresponding correction data of display frame with predetermined resolution.

Therefore, as long as corresponding in advance reference resolution generates the N Reference Alignment data, regardless of the resolution of display frame (that is, no matter the height of high definition), can both generate correction data so.Therefore, need not to make in order to generate the algorithm of correction data by the display frame of each different resolution.

For example, when predetermined resolution is higher than reference resolution, can use the less N Reference Alignment data of quantity of information to generate and the corresponding correction data of high resolving power display frame.

In addition, in above-mentioned method, remove the N Reference Alignment data, also need the correction data expansion to use information.About the quantity of information of correction data expansion with information; If the algorithm when generating correction data according to reference data improves; Than direct generation and the corresponding correction data of high resolving power display frame, can significantly reduce the quantity of information of correction data expansion so with information.

In addition; In display device of the present invention or correction data implementing device; On the basis of said structure, the said reference correction data can contain: the quantity of the adjustment correction pixels that contains in each cut zone of obtaining through cutting apart above-mentioned correcting area of expression, information; The expansion of above-mentioned correction data contains with information, through being that quantity identical, cut zone is adjusted the information of being utilized when generating above-mentioned correction data to the quantity of the contained adjustment correction pixels of above-mentioned cut zone with respect to the ratio between the quantity of the contained pixel of this cut zone.

According to said structure, correction data expansion is with can information containing: the quantity through adjusting the contained adjustment correction pixels of above-mentioned cut zone is the information that quantity same, cut zone is utilized when generating above-mentioned correction data with respect to the ratio between the quantity of the contained pixel of this cut zone.

Thus; For example be quantity same, cut zone through increasing above-mentioned ratio; Can generate simply and the corresponding correction data of high resolving power display frame; Therefore, than direct generation and the corresponding correction data of high resolving power display frame, can significantly reduce the quantity of information of correction data expansion with information.

For example, than direct generation and the corresponding correction data of high resolving power display frame, the quantity of information of the corresponding N Reference Alignment data of low resolution display frame is minimizing significantly.

Thus, on the whole, can significantly reduce quantity of information required when being used to generate high-resolution correction data.

In addition; In display device of the present invention or correction data implementing device, on the basis of said structure, when above-mentioned correcting area is when being wire and being arranged the wire correcting area form by a plurality of pixels; The said reference correction data contains pitch information; Wherein, the adjustment correction pixels that is comprised in the cut zone that contains single adjustment correction pixels that obtains about cutting apart above-mentioned wire correcting area, the interval between the immediate adjustment correction pixels is represented by above-mentioned interval information; The expansion of above-mentioned correction data contains with information, the information of being utilized when generating above-mentioned correction data corresponding to the above-mentioned pitch information of the display frame of said reference resolution is direct as the pitch information corresponding to the display frame of above-mentioned predetermined resolution.

According to said structure; The N Reference Alignment data contain pitch information; Wherein, Adjustment correction pixels when being divided into the cut zone that contains single adjustment correction pixels about above-mentioned wire correcting area, that this cut zone comprised, this interval information are the information at the interval between the immediate adjustment correction pixels of expression.Thus, compare, can reduce the quantity of information of N Reference Alignment data self significantly with the situation of the position of contained all of strip correcting area adjustment correction pixels being carried out when specific.

Except above-mentioned pitch information, generally also need contain offset information in the correction data, this offset information is in order to determine the reference position of which pixel in the contained pixel of strip correcting area as spacing.But, just need not this type of offset information if the reference position of spacing is produced automatically.

Thus; Pitch information in the time of for example can be low resolution display frame directly applies to high resolving power display frame; Therefore than direct generation and the corresponding correction data of high resolving power display frame, can reduce the quantity of information when being used to generate high-resolution correction data on the whole significantly.

In addition; In display device of the present invention or correction data implementing device; On the basis of said structure, when above-mentioned correcting area is a plurality of pixels when being the rectangular correcting area that rectangular arrangement forms, the said reference correction data contains the correcting pattern information that sorts out to some extent; Wherein, this correcting pattern information is to classify according to the quantity of cutting apart adjustment correction pixels contained in each cut zone that above-mentioned rectangular correcting area gets; The expansion of above-mentioned correction data contains with information, through being that the quantity of the identical cut zone with correcting pattern information is adjusted the information of being utilized when generating above-mentioned correction data to the ratio between the quantity of the quantity of the contained adjustment correction pixels of above-mentioned cut zone and the contained pixel of this cut zone.

According to said structure, the N Reference Alignment data contain the correcting pattern information that sorts out to some extent, and wherein, this correcting pattern information is to classify according to the quantity that above-mentioned rectangular correcting area is cut apart adjustment correction pixels contained in each cut zone that gets.Therefore, for example, be corresponding relation, just can significantly reduce the quantity of information of N Reference Alignment data self through making each correcting pattern information and suitable bit information.

For example; Be same correcting pattern information about above-mentioned ratio; Have quantity this correcting pattern information, cut zone through increase, can generate simply and the corresponding correction data of high resolving power display frame, therefore; Than direct generation and the corresponding correction data of high resolving power display frame, can significantly reduce the quantity of information of correction data expansion with information.

For example, than direct generation and the corresponding correction data of high resolving power display frame, the quantity of information of the corresponding N Reference Alignment data of low resolution display frame is remarkable minimizing.

Thus, on the whole, can significantly reduce the quantity of information when being used to generate high-resolution correction data.

Shooting condition determination device of the present invention is in order to the shooting condition of decision filming apparatus; Above-mentioned filming apparatus is taken with image the inspection that shows in the display frame; Thereby in order to proofread and correct the brightness disproportionation of above-mentioned display frame; This shooting condition determination device is characterised in that; Possess: computing unit, when 2 hypothesis shooting conditions when taking above-mentioned inspection with image to above-mentioned filming apparatus were made as the 1st hypothesis shooting condition and the 2nd hypothesis shooting condition, it was that the 1st pixel is recently calculated that this computing unit likens the pixel under above-mentioned the 1st hypothesis shooting condition to; Likening the pixel under above-mentioned the 2nd hypothesis shooting condition to is that the 2nd pixel is recently calculated; Wherein, above-mentioned pixel ratio is, photograph in the capturing element of above-mentioned filming apparatus above-mentioned inspection with the parts number of the capturing element of image with respect to the ratio between the pixel count of above-mentioned display frame; Setup unit; In the coordinate system that between above-mentioned pixel ratio of expression and above-mentioned hypothesis shooting condition, concerns; Be set at the inverse ratio curve of taking point through the 1st shooting point and the 2nd in order to determine the shooting condition determining function of above-mentioned shooting condition; Wherein, The above-mentioned the 1st takes above-mentioned the 1st pixel that point calculates by above-mentioned the 1st hypothesis shooting condition and aforementioned calculation unit than represented, and the above-mentioned the 2nd takes above-mentioned the 2nd pixel that point calculates by above-mentioned the 2nd hypothesis shooting condition and aforementioned calculation unit than represented; The decision unit, the above-mentioned shooting condition determining function that sets according to above-mentioned setup unit determines to be above-mentioned shooting condition to the hypothesis shooting condition of above-mentioned pixel when being integer.

Shooting condition determining method of the present invention is in order to the shooting condition of decision filming apparatus; Above-mentioned filming apparatus is taken with image the inspection that shows in the display frame; Thereby in order to proofread and correct the brightness disproportionation of above-mentioned display frame, this shooting condition determining method is characterised in that, comprises: calculation procedure; When 2 hypothesis shooting conditions when taking above-mentioned inspection with image to above-mentioned filming apparatus are made as the 1st hypothesis shooting condition and the 2nd hypothesis shooting condition; Likening the pixel under above-mentioned the 1st hypothesis shooting condition to is that the 1st pixel is recently calculated, and likening the pixel under above-mentioned the 2nd hypothesis shooting condition to is that the 2nd pixel is recently calculated, wherein; Above-mentioned pixel ratio is, photograph in the capturing element of above-mentioned filming apparatus above-mentioned inspection with the parts number of the capturing element of image with respect to the ratio between the pixel count of above-mentioned display frame; Set step; In the coordinate system that between above-mentioned pixel ratio of expression and above-mentioned hypothesis shooting condition, concerns; Be set at the inverse ratio curve of taking point through the 1st shooting point and the 2nd in order to determine the shooting condition determining function of above-mentioned shooting condition; Wherein, The above-mentioned the 1st take point by above-mentioned the 1st pixel that calculates in above-mentioned the 1st hypothesis shooting condition and the aforementioned calculation step than represented, the above-mentioned the 2nd take point by above-mentioned the 2nd pixel that calculates in above-mentioned the 2nd hypothesis shooting condition and the aforementioned calculation step than represented; Deciding step according to the above-mentioned shooting condition determining function of setting in the above-mentioned setting step, is transferred condition to the hypothesis shooting condition decision of above-mentioned pixel when being integer for above-mentioned shooting.

In above-mentioned shooting condition determination device and shooting condition determining method; Setup unit (in setting step) is set at the shooting condition determining function to the inverse ratio curve of taking point through the 1st shooting point and the 2nd; This shooting condition determining function is in order to determine shooting condition uneven timing, filming apparatus; Wherein, The 1st takes the 1st pixel that point calculates by the 1st hypothesis shooting condition and computing unit (in calculation procedure) than represented, the 2nd take point by the 2nd suppose shooting condition and computing unit (in calculation procedure) calculating above-mentioned the 2nd pixel than represented.

At this, the 1st hypothesis shooting condition and the 2nd hypothesis shooting condition are that filming apparatus is taken 2 hypothesis shooting conditions when checking with image.In addition; The 1st pixel than and the 2nd pixel ratio be, respectively above-mentioned the 1st hypothesis shooting condition down and the above-mentioned the 2nd suppose to photograph in the capturing element under the shooting condition, above-mentioned filming apparatus above-mentioned inspection with the parts number of the capturing element of image with respect to the ratio between the pixel count of above-mentioned display frame.

The above-mentioned shooting condition determining function that sets according to above-mentioned setup unit (in above-mentioned setting step) of decision unit (in deciding step) determines to be above-mentioned shooting condition to the hypothesis shooting condition of above-mentioned pixel when being integer.

Promptly; The hypothesis shooting condition decision in order to following situation time of shooting condition determination device of the present invention and shooting condition determining method is shooting condition, and this situation is: photograph the relation that possesses N:1 (N is the integer more than 1) between the pixel count of above-mentioned inspection with the parts number of the capturing element of image and above-mentioned display frame in the capturing element of filming apparatus.Thus, can make N capturing element of filming apparatus corresponding with 1 pixel of above-mentioned display frame, therefore can make N capturing element in the capturing element of filming apparatus take in the above-mentioned display frame with 1 brightness data that pixel is corresponding.

For example; When photograph in the capturing element of filming apparatus possess 2.7:1 between the pixel count of above-mentioned inspection with the parts number of the capturing element of image and above-mentioned display frame relation (promptly; When not possessing the concerning of integer) time; Compare with this moment; Shooting condition when having this integer ratio relationship can make N capturing element of filming apparatus corresponding with 1 pixel of above-mentioned display frame, therefore can make the capturing element of filming apparatus more reliably and correctly take 1 pairing brightness data of pixel in the above-mentioned display frame.

Therefore; About the correction (the uneven correction) that decides display frame brightness disproportionation behind the shooting condition, that carried out with shooting condition determination device and shooting condition determining method; Above-mentioned filming apparatus can be reliably and is correctly obtained the monochrome information of each pixel of above-mentioned display frame; Its result can carry out good inequality and proofread and correct.

In addition, above-mentioned shooting condition is to determine according to the above-mentioned shooting condition determining function that above-mentioned setup unit sets, and also determines through computing.Therefore, can realize that the shooting condition that good inequality is proofreaied and correct is able to determined rapidly and correctly.

Image is used in inspection about being shown in display frame, and in the end of display frame, its brightness (brightness data) is rapid variation.Therefore, through utilizing the variation of its brightness, more easily photograph above-mentioned inspection in the capturing element to above-mentioned filming apparatus and count with the parts number of the capturing element of image.

In addition, the 1st hypothesis shooting condition and the 2nd hypothesis shooting condition are can optional hypothesis shooting condition.Therefore, when the above-mentioned shooting condition of decision, can not bring excessive burden, so can be to the high shooting condition determination device of facilitating property of user to the user.

In addition; When above-mentioned inspection that above-mentioned display frame showed when systematicness ground shows with each pixel in the above-mentioned display frame with image; Above-mentioned filming apparatus is taken respectively with image the above-mentioned inspection that above-mentioned systematicness ground shows; The aforementioned calculation unit according to above-mentioned systematicness ground is shown and by the above-mentioned inspection of taking respectively with the single image that image is synthesized into, calculate above-mentioned pixel ratio.

At this, the resolution of imagining above-mentioned display frame is higher, and the resolution of above-mentioned filming apparatus is lower, and the above-mentioned inspection that shows in the above-mentioned display frame is with image systematicness ground demonstration by each pixel of above-mentioned display frame.

At this moment; Above-mentioned filming apparatus can be taken respectively with image the above-mentioned inspection that above-mentioned systematicness ground shows; The aforementioned calculation unit can according to above-mentioned systematicness ground is shown and by the above-mentioned inspection of taking respectively with the single image that image is synthesized into, calculate above-mentioned pixel ratio.The aforementioned calculation unit calculate above-mentioned pixel than after, through each above-mentioned action of above-mentioned setup unit and above-mentioned decision unit, the hypothesis shooting condition of above-mentioned pixel when being integer is able to be decided to be above-mentioned shooting condition.

So; Even the resolution of above-mentioned display frame is higher; And the resolution of above-mentioned filming apparatus is lower; Shooting condition determination device of the present invention also can be according to the single image that above-mentioned systematicness ground is shown and be synthesized into image by the above-mentioned inspection of taking respectively, determines to be above-mentioned shooting condition to the hypothesis shooting condition of above-mentioned pixel when being integer.

Through said structure, for example cut apart when carrying out 4 regularly, and when above-mentioned inspection being come to show successively with image according to this systematicness to a plurality of pixels of display frame, above-mentioned filming apparatus can realize the multiples identical with cutting apart number promptly, 4 times resolution.

About show above-mentioned systematicness ground and method when being synthesized single image with image by the above-mentioned inspection of taking respectively, as long as just can use techniques known realize can, its method is not particularly limited.

In addition, when the hypothesis shooting condition of above-mentioned pixel when being integer has when a plurality of, the hypothesis shooting condition decision when above-mentioned decision unit can be integer maximum is above-mentioned shooting condition.

When the hypothesis shooting condition of above-mentioned pixel when being integer has when a plurality of, the hypothesis shooting condition decision when being integer maximum preferentially is above-mentioned shooting condition.Thus, the capturing element number of above-mentioned filming apparatus can be effectively utilized to maximum limit, and the monochrome information of display frame can be obtained with better precision.But, when the hypothesis shooting condition decision when being integer maximum is above-mentioned shooting condition, be to make decision in the scope of the capturing element that does not exceed above-mentioned filming apparatus.

In addition, above-mentioned shooting condition can be that the device space between above-mentioned display frame and the above-mentioned filming apparatus leaves, or the shooting multiplying power of above-mentioned filming apparatus.

About the device space between above-mentioned display frame and the above-mentioned filming apparatus from or the shooting multiplying power of above-mentioned filming apparatus, it is the condition that is easier to regulate as the shooting condition of filming apparatus.

Therefore, through said structure, the user can more easily regulate shooting condition, thereby can realize the user is had the shooting condition determination device of higher convenience.

In addition; In shooting condition determination device of the present invention; Above-mentioned decision unit can be sent to the shooting condition regulon with the shooting condition information of the above-mentioned shooting condition of expression; Above-mentioned shooting condition regulon can be adjusted to the state shown in the above-mentioned shooting condition with above-mentioned filming apparatus according to above-mentioned shooting condition information.

According to said structure; The shooting condition information of representing above-mentioned shooting condition is sent to above-mentioned shooting condition regulon from above-mentioned decision unit; Above-mentioned shooting condition regulon is adjusted to the state shown in the above-mentioned shooting condition according to above-mentioned shooting condition information with above-mentioned filming apparatus.

Therefore, above-mentioned shooting condition is regulated by above-mentioned shooting condition regulon, regulates shooting condition so the user need not oneself.In addition, because above-mentioned shooting condition regulon is adjusted to the state shown in the above-mentioned shooting condition with above-mentioned filming apparatus, therefore can realize regulating more reliably than user's adjusting.Thus, through said structure, can carry out good inequality reliably and proofread and correct.

At this, shooting condition be between said apparatus apart from the time, above-mentioned shooting condition regulon possesses in order to regulate the function of distance between said apparatus.When this situation, the method when above-mentioned shooting condition regulon is regulated distance between said apparatus is not particularly limited, and can use the prior art of using in the various fields.

In addition, when shooting condition was above-mentioned shooting multiplying power, above-mentioned shooting condition regulon possessed in order to regulate the function of above-mentioned shooting multiplying power.When this situation, the method when above-mentioned shooting condition regulon is regulated above-mentioned shooting multiplying power is not particularly limited, and can use the prior art of using in the various fields.

Above-mentioned shooting condition determination device also can be realized through computing machine; When this situation, with make so that computing machine moves as above-mentioned each unit (computing unit, setup unit, decision unit) computing machine realize above-mentioned shooting condition determination device, shooting condition determination procedure and the computer-readable recording medium that records this program be also contained in the category of the present invention.

In addition, possess above-mentioned shooting condition determination device is arranged, and be also contained in the category of the present invention in order to the uneven corrective system of the brightness disproportionation of proofreading and correct above-mentioned display frame.

(utilizing in the industry possibility)

The present invention is applicable to liquid crystal indicator, plasma display, OLED display, SED various display device such as (SED), also be applicable to the correction data of making those display device in pairs, the correction data implementing device.