CN108615511B - Display method and display device - Google Patents
- ️Tue Sep 01 2020
CN108615511B - Display method and display device - Google Patents
Display method and display device Download PDFInfo
-
Publication number
- CN108615511B CN108615511B CN201810689984.7A CN201810689984A CN108615511B CN 108615511 B CN108615511 B CN 108615511B CN 201810689984 A CN201810689984 A CN 201810689984A CN 108615511 B CN108615511 B CN 108615511B Authority
- CN
- China Prior art keywords
- display panel
- color temperature
- ambient light
- gray scale
- displaying Prior art date
- 2018-06-28 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0673—Adjustment of display parameters for control of gamma adjustment, e.g. selecting another gamma curve
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Processing Of Color Television Signals (AREA)
- Liquid Crystal Display Device Control (AREA)
Abstract
The invention provides a display method and a display device. The display method comprises the steps of detecting the current color temperature of ambient light, obtaining the maximum gray scale which can be used for driving a display panel to display under the current color temperature of the ambient light according to the current color temperature of the ambient light and a preset proportioning algorithm, obtaining the maximum brightness which can be used for displaying of the display panel under the current color temperature of the ambient light, adjusting the configuration of a gamma chip according to the maximum brightness which can be used for displaying of the display panel under the current color temperature of the ambient light, enabling all gray scales which can be displayed by the display panel to be mapped into a brightness range from 0 to first brightness, and finally driving the display panel to display by the adjusted gamma chip.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to a display method and a display device.
Background
With the development of Display technology, flat panel Display devices such as Liquid Crystal Displays (LCDs) have advantages of high image quality, power saving, thin body, and wide application range, and thus are widely used in various consumer electronics products such as mobile phones, televisions, personal digital assistants, digital cameras, notebook computers, and desktop computers, and become the mainstream of Display devices.
The liquid crystal display panel is a core component of the liquid crystal display device. The lcd panel is generally composed of a Color Filter Substrate (CF Substrate), a Thin film transistor Array Substrate (TFT Array Substrate), and a Liquid Crystal Layer (Liquid Crystal Layer) disposed between the two substrates. Generally, the array substrate and the color filter substrate are respectively provided with a pixel electrode and a common electrode. When voltages are applied to the pixel electrodes and the common electrode, an electric field is generated in the liquid crystal layer, which determines the orientation of liquid crystal molecules, thereby adjusting the polarization of light incident to the liquid crystal layer, and displaying images on the liquid crystal display panel.
The liquid crystal display device generally includes a Gamma chip (Gamma IC) and a driving circuit board electrically connected to the Gamma chip, in addition to the liquid crystal display panel, and the driving circuit board is electrically connected to the liquid crystal display panel. The liquid crystal display panel is characterized in that a plurality of binding point gray scales are arranged in the gamma chip, each binding point gray scale corresponds to one brightness, the brightness corresponding to each binding point gray scale can be changed by changing the voltage corresponding to each binding point gray scale, the driving circuit board controls the voltage of the gray scale to be displayed of the display panel according to the voltage corresponding to each binding point gray scale and the gray scale to be displayed of the display panel, so that the brightness of the gray scale to be displayed of the display panel is controlled, and the liquid crystal display panel displays different gray scales. For example, the liquid crystal display panel displays 256 gray scales, the gamma chip has 9 binding gray scales, and the driving circuit board can control the liquid crystal display panel to display 256 luminances corresponding to the 256 gray scales according to 9 luminances corresponding to the 9 binding gray scales in the gamma chip, that is, the liquid crystal display panel can change the 256 luminances corresponding to the 256 gray scales displayed by the liquid crystal display panel by changing the luminance corresponding to each binding gray scale.
The existing liquid crystal display device generally presets a plurality of display modes corresponding to color temperatures of different ambient lights for users to select, for example, a warm color temperature display mode with a color temperature of 5000K of ambient light, a standard color temperature display mode with a color temperature of 6500K of ambient light, a cold color temperature display mode with a color temperature of 9300K of ambient light, etc., however, when a user selects these settings, only one of these fixed display modes can be selected, when the display effect of the several display modes is not good, the display effect of the liquid crystal display device cannot be accurately adjusted according to the actual color temperature of the ambient light, and the user experience is not high.
Disclosure of Invention
The invention aims to provide a display method, which can automatically adjust the display effect along with the change of the color temperature of ambient light and does not lose image details.
It is another object of the present invention to provide a display device capable of automatically adjusting a display effect according to a change in color temperature of ambient light without losing image details.
In order to achieve the above object, the present invention provides a display method, comprising the steps of:
step S1, providing a display panel and a gamma chip electrically connected with the display panel;
step S2, detecting the current color temperature of the ambient light, and calculating a first gray scale according to the current color temperature of the ambient light and a preset proportioning algorithm when the difference value between the current color temperature and the initial color temperature of the ambient light reaches a preset color temperature threshold value; the initial color temperature is the color temperature of the ambient light corresponding to the current configuration of the gamma chip, and the first gray scale is the maximum gray scale which can be used for driving the display panel to display under the current color temperature of the ambient light under the current configuration of the gamma chip;
step S3, obtaining a first brightness according to the current configuration and a first gray scale of the gamma chip, wherein the first brightness is the maximum brightness which can be used for displaying by the display panel under the current color temperature of the ambient light;
step S4, adjusting the configuration of the gamma chip according to the first brightness, so as to map all gray scales that can be displayed by the display panel into a brightness range from 0 to the first brightness, where the adjusted configuration of the gamma chip corresponds to the current color temperature of the ambient light, and the display panel is driven by the adjusted gamma chip to perform image display.
The first gray scale in step S2 includes: the display panel can be used for driving the maximum gray scale of a red component, the maximum gray scale of a green component and the maximum gray scale of a blue component displayed by the display panel under the current configuration of the gamma chip under the current color temperature of the ambient light;
the first luminance in the step S3 includes: the display panel is capable of being used for displaying the maximum brightness of the red component, the maximum brightness of the green component and the maximum brightness of the blue component at the current color temperature of the ambient light.
The preset proportioning algorithm in the step S2 is as follows:
wherein X0, Y0 and Z0 are tristimulus values of the display panel when displaying a pure black picture, XR, YR and ZR are differences between the tristimulus values of the display panel when displaying a pure red picture and the tristimulus values of the display panel when displaying a pure black picture, XG, YG and ZG are differences between the tristimulus values of the display panel when displaying a pure green picture and the tristimulus values of the display panel when displaying a pure black picture, XB, YB and ZB are differences between the tristimulus values of the display panel when displaying a pure blue picture and the tristimulus values of the display panel when displaying a pure black picture, γ R, γ B and γ G are gamma values of a red component, a green component and a blue component in the display panel, respectively, and dR, dG and dB are gray scales of maximum gray scales of a red component capable of driving display of a color temperature of the display panel under a current configuration of ambient light, respectively, The maximum gray levels of the green component and the blue component, X, Y and Z are tristimulus values of the ambient light at the current color temperature.
In the step S4, the configuration of the gamma chip is adjusted by adjusting the brightness corresponding to each binding point gray scale in the gamma chip.
The step S2 further provides a light sensor to detect the current color temperature of the ambient light through the light sensor.
The invention also provides a display device, which comprises a display panel, a gamma chip electrically connected with the display panel, a first processing unit electrically connected with the gamma chip, a second processing unit electrically connected with the first processing unit and a detection unit electrically connected with the second processing unit;
the detecting unit is used for detecting the current color temperature of the ambient light;
the second processing unit is used for calculating a first gray scale according to the current color temperature of the ambient light and a preset proportioning algorithm when the difference value between the current color temperature and the initial color temperature of the ambient light reaches a preset color temperature threshold value; the initial color temperature is the color temperature of the ambient light corresponding to the current configuration of the gamma chip, and the first gray scale is the maximum gray scale which can be used for driving the display panel to display under the current color temperature of the ambient light under the current configuration of the gamma chip;
the first processing unit is used for obtaining first brightness according to the current configuration and the first gray scale of the gamma chip and adjusting the configuration of the gamma chip according to the first brightness so as to map all gray scales which can be displayed by the display panel into a brightness range from 0 to the first brightness, so that the adjusted configuration of the gamma chip corresponds to the current color temperature of ambient light;
the gamma chip is used for driving the display panel to display pictures.
The first gray scale includes: the display panel can be used for driving the maximum gray scale of a red component, the maximum gray scale of a green component and the maximum gray scale of a blue component displayed by the display panel under the current configuration of the gamma chip under the current color temperature of the ambient light;
the first brightness includes: the display panel is capable of being used for displaying the maximum brightness of the red component, the maximum brightness of the green component and the maximum brightness of the blue component at the current color temperature of the ambient light.
The preset proportioning algorithm is as follows:
wherein X0, Y0 and Z0 are tristimulus values of the display panel when displaying a pure black picture, XR, YR and ZR are differences between the tristimulus values of the display panel when displaying a pure red picture and the tristimulus values of the display panel when displaying a pure black picture, XG, YG and ZG are differences between the tristimulus values of the display panel when displaying a pure green picture and the tristimulus values of the display panel when displaying a pure black picture, XB, YB and ZB are differences between the tristimulus values of the display panel when displaying a pure blue picture and the tristimulus values of the display panel when displaying a pure black picture, γ R, γ B and γ G are gamma values of a red component, a green component and a blue component in the display panel, respectively, and dR, dG and dB are gray scales of maximum gray scales of a red component capable of driving display of a color temperature of the display panel under a current configuration of ambient light, respectively, The maximum gray levels of the green component and the blue component, X, Y and Z are tristimulus values of the ambient light at the current color temperature.
The first processing unit adjusts the configuration of the gamma chip by adjusting the brightness corresponding to each binding point gray scale in the gamma chip.
The detection unit is a light sensor.
The invention has the beneficial effects that: the invention provides a display method, which comprises the steps of detecting the current color temperature of ambient light, obtaining the maximum gray scale which can be used for driving a display panel to display under the current color temperature of the ambient light under the current configuration of a gamma chip according to the current color temperature of the ambient light and a preset proportioning algorithm, further obtaining the maximum brightness which can be used for displaying of the display panel under the current color temperature of the ambient light, adjusting the configuration of the gamma chip according to the maximum brightness which can be used for displaying of the display panel under the current color temperature of the ambient light, enabling all gray scales which can be displayed by the display panel to be mapped into a brightness range from 0 to first brightness, and finally driving the display panel to display by using the adjusted gamma chip. The invention also provides a display device, which can automatically adjust the display effect along with the change of the color temperature of the ambient light without losing the image details.
Drawings
For a better understanding of the nature and technical aspects of the present invention, reference should be made to the following detailed description of the invention, taken in conjunction with the accompanying drawings, which are provided for purposes of illustration and description and are not intended to limit the invention.
In the drawings, there is shown in the drawings,
FIG. 1 is a flow chart of a display method of the present invention;
FIG. 2 is a schematic diagram of the display apparatus and the display method of step S1 according to the present invention;
fig. 3 and 4 are schematic diagrams illustrating steps S2 to S4 of the display method of the present invention.
Detailed Description
To further illustrate the technical means and effects of the present invention, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.
Referring to fig. 1, the present invention provides a display method, including the following steps:
step S1, providing a
display panel1 and a
gamma chip2 electrically connected to the
display panel1.
Specifically, the
gamma chip2 has a plurality of binding gray scales, and each binding gray scale corresponds to one brightness.
Step S2, detecting the current color temperature of the ambient light, and calculating a first gray scale according to the current color temperature of the ambient light and a preset proportioning algorithm when the difference value between the current color temperature and the initial color temperature of the ambient light reaches a preset color temperature threshold value; the initial color temperature is a color temperature of the ambient light corresponding to the current configuration of the
gamma chip2, and the first gray scale is a maximum gray scale which can be used for driving the
display panel1 to display under the current color temperature of the ambient light under the current configuration of the
gamma chip2.
Specifically, the step S2 further includes providing a light sensor, and detecting the current color temperature of the ambient light by the light sensor.
Specifically, in some embodiments of the present invention, the preset color temperature threshold is 500K, the initial color temperature is 5500K, at this time, if 5000K or 6000K of the color temperature of the ambient light is detected, the first gray scale is calculated according to the current color temperature of the ambient light and the preset proportioning algorithm and the subsequent steps are continued, and if 5100K or 5900K of the color temperature of the ambient light is detected, the current configuration of the
gamma chip2 is maintained and the detection is continued until a difference between the color temperature of the current ambient light and the initial color temperature reaches 500K.
Specifically, the first gray scale in step S2 includes: the current configuration of the
gamma chip2 can be used to drive the maximum gray scale of the red component, the maximum gray scale of the green component and the maximum gray scale of the blue component displayed by the
display panel1 at the current color temperature of the ambient light.
Further, the proportioning algorithm preset in the step S2 is:
wherein, X0, Y0 and Z0 are tristimulus values of the
display panel1 when displaying a pure black picture, XR, YR and ZR are differences between the tristimulus values of the
display panel1 when displaying a pure red picture and the tristimulus values of the
display panel1 when displaying a pure black picture, XG, YG and ZG are differences between the tristimulus values of the
display panel1 when displaying a pure green picture and the tristimulus values of the
display panel1 when displaying a pure black picture, XB, YB and ZB are differences between the tristimulus values of the
display panel1 when displaying a pure blue picture and the tristimulus values of the
display panel1 when displaying a pure black picture, γ R, γ B and γ G are gamma values of a red component, a green component and a blue component in the
display panel1, dR, dG and dB are gray scale values of a maximum color temperature of the
display panel1 capable of driving a red component under a current configuration of the
gamma chip2 under a color temperature environment light, and dR, YB and dG are gray scale values of the
display panel1 under a current configuration of the
display panel2, The maximum gray levels of the green component and the blue component, X, Y and Z are tristimulus values of the ambient light at the current color temperature.
Further, the X0, Y0, Z0, XR, YR, ZR, XG, YG, ZG, XB, YB, ZB, γ R, γ B, and γ G are inherent to the
display panel1, and when the
display panel1 is determined, the values are also determined, and X, Y and Z may be calculated according to the following formulas:
where x and y are color coordinates of the ambient light at the current color temperature, and Lv is the brightness of the ambient light at the current color temperature.
Step S3, obtaining a first brightness according to the current configuration and the first gray scale of the
gamma chip2, where the first brightness is a maximum brightness that can be used for displaying by the
display panel1 at the current color temperature of the ambient light.
Specifically, the first luminance in step S3 includes: the
display panel1 is operable to display a maximum luminance of a red component, a maximum luminance of a green component and a maximum luminance of a blue component at a current color temperature of ambient light.
Step S4, adjusting the configuration of the
gamma chip2 according to the first brightness, so as to map all gray scales that can be displayed by the
display panel1 into a brightness range from 0 to the first brightness, where the configuration of the
gamma chip2 after adjustment corresponds to the current color temperature of the ambient light, and the
gamma chip2 after adjustment is used to drive the
display panel1 to perform image display.
Specifically, in the step S4, the configuration of the
gamma chip2 is adjusted by adjusting the brightness corresponding to each binding gray scale in the
gamma chip2.
For example, in the preferred embodiment of the present invention, in the step S2, the maximum gray scale of the red component that can be used for driving the
display panel1 to display under the current color temperature of the ambient light under the current configuration of the
gamma chip2 is calculated to be 200 gray scales, the relationship curve between the gray scale of the red component of the
display panel1 and the brightness under the current configuration of the
gamma chip2 is as shown in fig. 3, and further the brightness corresponding to the 200 gray scales is 75, that is, the maximum brightness of the red component that can be used for displaying under the current color temperature of the ambient light of the
display panel1 is 75, and then the brightness corresponding to each binding point gray scale in the
gamma chip2 is adjusted to change the configuration of the
gamma chip2, as shown in fig. 3 and 4, and the brightness corresponding to the gray scales of 0 to 255 of the red component of the
display panel1 is changed from the distribution shown in fig. 3 between 0 to 100 to the distribution shown in fig. 4 between 0 to 75, in the preferred embodiment, the
gamma chip2 includes 9 binding point gray scales, and all of the 0 to 255 gray scales can be always valid by adjusting the configuration of the
gamma chip2, and compared with the case where the display panel is driven to work by the
gamma chip2 after adjustment before adjustment, the 200 to 255 gray scales can also be in a valid state. The adjustment process of the green component and the blue component is the same as the red component, and is not described herein again.
According to the invention, by adjusting the binding point gray scale according to the color temperature of the ambient light, the display panel can have brightness adaptive to the color temperature of the ambient light when displaying, and all gray scales of the display panel are in an effective state under the color temperatures of various ambient lights.
Referring to fig. 2, the present invention provides a display device, including a
display panel1, a
gamma chip2 electrically connected to the
display panel1, a
first processing unit3 electrically connected to the
gamma chip2, a
second processing unit4 electrically connected to the
first processing unit3, and a detecting
unit5 electrically connected to the
second processing unit4;
the detecting
unit5 is used for detecting the current color temperature of the ambient light;
the
second processing unit4 is configured to calculate a first gray scale according to the current color temperature of the ambient light and a preset proportioning algorithm when a difference value between the current color temperature and the initial color temperature of the ambient light reaches a preset color temperature threshold; the initial color temperature is the color temperature of the ambient light corresponding to the current configuration of the
gamma chip2, and the first gray scale is the maximum gray scale which can be used for driving the
display panel1 to display under the current color temperature of the ambient light under the current configuration of the
gamma chip2;
the
first processing unit3 is configured to obtain first brightness according to the current configuration and the first gray scale of the
gamma chip2, and adjust the configuration of the
gamma chip2 according to the first brightness, so as to map all gray scales that can be displayed by the
display panel1 into a brightness range from 0 to the first brightness, so that the adjusted configuration of the
gamma chip2 corresponds to the current color temperature of the ambient light;
the
gamma chip2 is used for driving the
display panel1 to display pictures.
Specifically, the
gamma chip2 has a plurality of binding gray scales, and each binding gray scale corresponds to one brightness.
Specifically, the detecting
unit5 is a light sensor, and detects the current color temperature of the ambient light through the light sensor.
Specifically, in some embodiments of the present invention, the preset color temperature threshold is 500K, the initial color temperature is 5500K, at this time, if 5000K or 6000K of the color temperature of the ambient light is detected, the
second processing unit4 calculates a first gray scale according to the current color temperature of the ambient light and a preset proportioning algorithm, the
first processing unit3 obtains a first brightness according to the current configuration and the first gray scale of the
gamma chip2, and adjusts the configuration of the
gamma chip2 according to the first brightness, and if 5100K or 5900K of the color temperature of the ambient light is detected, the current configuration of the
gamma chip2 is maintained and detection is continued until a difference between the current color temperature of the ambient light and the initial color temperature reaches 500K, since the color temperature of the ambient light changes very frequently, the setting can ensure that the configuration of the
gamma chip2 changes only when the color temperature of the ambient light changes greatly, and avoid frequently changing the configuration of the
gamma chip2 due to a slight change of the color temperature of the ambient light, the system is burdened.
Specifically, the first gray scale includes: the current configuration of the
gamma chip2 can be used to drive the maximum gray scale of the red component, the maximum gray scale of the green component and the maximum gray scale of the blue component displayed by the
display panel1 at the current color temperature of the ambient light.
Further, the preset proportioning algorithm is as follows:
wherein, X0, Y0 and Z0 are tristimulus values of the display panel 1 when displaying a pure black picture, XR, YR and ZR are differences between the tristimulus values of the display panel 1 when displaying a pure red picture and the tristimulus values of the display panel 1 when displaying a pure black picture, XG, YG and ZG are differences between the tristimulus values of the display panel 1 when displaying a pure green picture and the tristimulus values of the display panel 1 when displaying a pure black picture, XB, YB and ZB are differences between the tristimulus values of the display panel 1 when displaying a pure blue picture and the tristimulus values of the display panel 1 when displaying a pure black picture, γ R, γ B and γ G are gamma values of a red component, a green component and a blue component in the display panel 1, dR, dG and dB are gray scale values of a maximum color temperature of the display panel 1 capable of driving a red component under a current configuration of the gamma chip 2 under a color temperature environment light, and dR, YB and dG are gray scale values of the display panel 1 under a current configuration of the display panel 2, The maximum gray levels of the green component and the blue component, X, Y and Z are tristimulus values of the ambient light at the current color temperature.
Further, the X0, Y0, Z0, XR, YR, ZR, XG, YG, ZG, XB, YB, ZB, γ R, γ B, and γ G are inherent to the
display panel1, and when the
display panel1 is determined, the values are also determined, and X, Y and Z may be calculated according to the following formulas:
where x and y are color coordinates of the ambient light at the current color temperature, and Lv is the brightness of the ambient light at the current color temperature.
Specifically, the first brightness includes: the
display panel1 is operable to display a maximum luminance of a red component, a maximum luminance of a green component and a maximum luminance of a blue component at a current color temperature of ambient light.
Specifically, the
first processing unit3 adjusts the configuration of the
gamma chip2 by adjusting the brightness corresponding to each binding gray scale in the
gamma chip2.
For example, in a preferred embodiment of the present invention, the second processing unit 4 calculates that the maximum gray scale of the red component that can be used for driving the display panel 1 to display under the current color temperature of the ambient light under the current configuration of the gamma chip 2 is 200 gray scales, the relationship curve between the gray scale of the red component of the display panel 1 and the brightness under the current configuration of the gamma chip 2 is as shown in fig. 3, and further the brightness corresponding to the 200 gray scales is 75, that is, the maximum brightness of the red component that can be used for displaying under the current color temperature of the ambient light of the display panel 1 is 75, then the first processing unit 3 adjusts the brightness corresponding to each binding point gray scale in the gamma chip 2 to change the configuration of the gamma chip 2, as shown in fig. 3 and 4, after the brightness corresponding to the 0-255 gray scales of the red component of the display panel 1 is changed from the distribution shown in fig. 3 to 100 to the distribution shown in fig. 4 to 0-75, in the preferred embodiment, the gamma chip 2 includes 9 binding point gray scales, and all of the 0 to 255 gray scales can be always valid by adjusting the configuration of the gamma chip 2, and compared with the case where the display panel is driven to work by the gamma chip 2 after adjustment before adjustment, the 200 to 255 gray scales can also be in a valid state. The adjustment process of the green component and the blue component is the same as the red component, and is not described herein again.
According to the invention, by adjusting the binding point gray scale according to the color temperature of the ambient light, the display panel can have brightness adaptive to the color temperature of the ambient light when displaying, and all gray scales of the display panel are in an effective state under the color temperatures of various ambient lights.
In summary, the present invention provides a display method, which includes detecting a current color temperature of ambient light, obtaining a maximum gray scale that can be displayed by a display panel under the current color temperature of the ambient light according to the current color temperature of the ambient light and a preset proportioning algorithm, obtaining a maximum brightness that can be displayed by the display panel under the current color temperature of the ambient light, adjusting a configuration of a gamma chip according to the maximum brightness that can be displayed by the display panel under the current color temperature of the ambient light, so that all gray scales that can be displayed by the display panel are mapped to a brightness range from 0 to a first brightness, and finally driving the display panel to display by the adjusted gamma chip, so as to automatically adjust a display effect along with a change in the color temperature of the ambient light without losing image details. The invention also provides a display device, which can automatically adjust the display effect along with the change of the color temperature of the ambient light without losing the image details.
As described above, it will be apparent to those skilled in the art that other various changes and modifications may be made based on the technical solution and concept of the present invention, and all such changes and modifications are intended to fall within the scope of the appended claims.
Claims (10)
1. A display method comprises the steps of S1, providing a display panel (1) and a gamma chip (2) electrically connected with the display panel (1);
it is characterized by also comprising the following steps:
step S2, detecting the current color temperature of the ambient light, and calculating a first gray scale according to the current color temperature of the ambient light and a preset proportioning algorithm when the difference value between the current color temperature and the initial color temperature of the ambient light reaches a preset color temperature threshold value; the initial color temperature is the color temperature of the ambient light corresponding to the current configuration of the gamma chip (2), and the first gray scale is the maximum gray scale which can be used for driving the display panel (1) to display under the current color temperature of the ambient light under the current configuration of the gamma chip (2);
step S3, obtaining a first brightness according to the current configuration and a first gray scale of the gamma chip (2), wherein the first brightness is the maximum brightness which can be used for displaying by the display panel (1) under the current color temperature of the ambient light;
and step S4, adjusting the configuration of the gamma chip (2) according to the first brightness, so as to map all gray scales which can be displayed by the display panel (1) into a brightness range from 0 to the first brightness, wherein the configuration of the gamma chip (2) after adjustment corresponds to the current color temperature of the ambient light, and the gamma chip (2) after adjustment is used for driving the display panel (1) to display the picture.
2. The display method as claimed in claim 1, wherein the first gray scale in step S2 includes: the display panel (1) can be used for driving the maximum gray scale of a red component, the maximum gray scale of a green component and the maximum gray scale of a blue component displayed by the display panel (1) under the current configuration of the gamma chip (2) under the current color temperature of ambient light;
the first luminance in the step S3 includes: the display panel (1) is capable of being used for displaying a maximum luminance of a red component, a maximum luminance of a green component and a maximum luminance of a blue component at a current color temperature of ambient light.
3. The display method according to claim 2, wherein the proportioning algorithm preset in the step S2 is:
wherein X0, Y0 and Z0 are tristimulus values of the display panel (1) when displaying a pure black picture, XR, YR and ZR are differences between the tristimulus values of the display panel (1) when displaying a pure red picture and the tristimulus values of the display panel (1) when displaying a pure black picture, XG, YG and ZG are differences between the tristimulus values of the display panel (1) when displaying a pure green picture and the tristimulus values of the display panel (1) when displaying a pure black picture, XB, YB and ZB are differences between the tristimulus values of the display panel (1) when displaying a pure blue picture and the tristimulus values of the display panel (1) when displaying a pure black picture, γ R, γ B and γ G are gamma values of a red component, a green component and a blue component in the display panel (1), and dR, dG and γ G are gamma values of a gamma chip (2) respectively, and are gamma values of a current color temperature driving environment (1) capable of driving the display panel under a current color temperature ) The maximum gray scale of the red component, the maximum gray scale of the green component, and the maximum gray scale of the blue component are displayed, X, Y and Z are tristimulus values of the ambient light at the current color temperature.
4. The display method according to claim 1, wherein the step S4 adjusts the configuration of the gamma chip (2) by adjusting the brightness corresponding to each binding gray scale in the gamma chip (2).
5. The display method as claimed in claim 1, wherein the step S2 further provides a light sensor for detecting the current color temperature of the ambient light.
6. A display device comprises a display panel (1) and a gamma chip (2) electrically connected with the display panel (1), and is characterized by further comprising a first processing unit (3) electrically connected with the gamma chip (2), a second processing unit (4) electrically connected with the first processing unit (3), and a detecting unit (5) electrically connected with the second processing unit (4);
the detection unit (5) is used for detecting the current color temperature of the ambient light;
the second processing unit (4) is used for calculating a first gray scale according to the current color temperature of the ambient light and a preset proportioning algorithm when the difference value between the current color temperature and the initial color temperature of the ambient light reaches a preset color temperature threshold value; the initial color temperature is the color temperature of the ambient light corresponding to the current configuration of the gamma chip (2), and the first gray scale is the maximum gray scale which can be used for driving the display panel (1) to display under the current color temperature of the ambient light under the current configuration of the gamma chip (2);
the first processing unit (3) is used for obtaining first brightness according to the current configuration and the first gray scale of the gamma chip (2), and adjusting the configuration of the gamma chip (2) according to the first brightness so as to map all gray scales which can be displayed by the display panel (1) into a brightness range from 0 to the first brightness, so that the configuration of the gamma chip (2) after adjustment corresponds to the current color temperature of ambient light;
the gamma chip (2) is used for driving the display panel (1) to display pictures.
7. The display device of claim 6, wherein the first gray scale comprises: the display panel (1) can be used for driving the maximum gray scale of a red component, the maximum gray scale of a green component and the maximum gray scale of a blue component displayed by the display panel (1) under the current configuration of the gamma chip (2) under the current color temperature of ambient light;
the first brightness includes: the display panel (1) is capable of being used for displaying a maximum luminance of a red component, a maximum luminance of a green component and a maximum luminance of a blue component at a current color temperature of ambient light.
8. The display device as claimed in claim 7, wherein the preset proportioning algorithm is:
wherein X0, Y0 and Z0 are tristimulus values of the display panel (1) when displaying a pure black picture, XR, YR and ZR are differences between the tristimulus values of the display panel (1) when displaying a pure red picture and the tristimulus values of the display panel (1) when displaying a pure black picture, XG, YG and ZG are differences between the tristimulus values of the display panel (1) when displaying a pure green picture and the tristimulus values of the display panel (1) when displaying a pure black picture, XB, YB and ZB are differences between the tristimulus values of the display panel (1) when displaying a pure blue picture and the tristimulus values of the display panel (1) when displaying a pure black picture, γ R, γ B and γ G are gamma values of a red component, a green component and a blue component in the display panel (1), and dR, dG and γ G are gamma values of a gamma chip (2) respectively, and are gamma values of a current color temperature driving environment (1) capable of driving the display panel under a current color temperature ) The maximum gray scale of the red component, the maximum gray scale of the green component, and the maximum gray scale of the blue component are displayed, X, Y and Z are tristimulus values of the ambient light at the current color temperature.
9. The display device according to claim 6, wherein the first processing unit (3) adjusts the configuration of the gamma chip (2) by adjusting the brightness corresponding to each binding gray scale in the gamma chip (2).
10. The display device according to claim 6, wherein the detection unit (5) is a light sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810689984.7A CN108615511B (en) | 2018-06-28 | 2018-06-28 | Display method and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810689984.7A CN108615511B (en) | 2018-06-28 | 2018-06-28 | Display method and display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108615511A CN108615511A (en) | 2018-10-02 |
| CN108615511B true CN108615511B (en) | 2020-09-01 |
Family
ID=63665911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810689984.7A Active CN108615511B (en) | 2018-06-28 | 2018-06-28 | Display method and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108615511B (en) |
Families Citing this family (6)
* Cited by examiner, † Cited by third party| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109064966B (en) * | 2018-10-31 | 2021-08-27 | 武汉天马微电子有限公司 | Driving method and driving chip of display panel and display device |
| CN109637475A (en) * | 2018-12-21 | 2019-04-16 | 惠科股份有限公司 | gamma debugging method of display panel |
| CN111916032B (en) | 2019-05-10 | 2023-06-27 | 京东方科技集团股份有限公司 | Gamma adjustment method and device for display panel |
| CN112447148B (en) * | 2019-09-03 | 2022-07-01 | 合肥鑫晟光电科技有限公司 | Display device and correction method thereof |
| WO2021170040A1 (en) * | 2020-02-27 | 2021-09-02 | 京东方科技集团股份有限公司 | Method and device for adjusting display parameter, and display device |
| CN111312143B (en) * | 2020-02-28 | 2022-04-19 | 京东方科技集团股份有限公司 | Display device, driving method and driving device thereof, and computer-readable storage medium |
Citations (3)
* Cited by examiner, † Cited by third party| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103310740A (en) * | 2013-04-26 | 2013-09-18 | 明基电通有限公司 | Image processing method for display device and display device |
| CN204045192U (en) * | 2014-04-18 | 2014-12-24 | 全方位数位影像开发股份有限公司 | Self-image correction device for liquid crystal display |
| CN107644607A (en) * | 2016-07-22 | 2018-01-30 | 上海和辉光电有限公司 | The color temperature adjusting method and display device of display panel |
Family Cites Families (2)
* Cited by examiner, † Cited by third party| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102303277B1 (en) * | 2015-03-16 | 2021-09-23 | 삼성디스플레이 주식회사 | Display apparatus |
| US9754543B2 (en) * | 2015-04-16 | 2017-09-05 | Panoramic Imaging Solutions Ltd. | Image self-calibration method and device for LCD displays |
-
2018
- 2018-06-28 CN CN201810689984.7A patent/CN108615511B/en active Active
Patent Citations (3)
* Cited by examiner, † Cited by third party| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103310740A (en) * | 2013-04-26 | 2013-09-18 | 明基电通有限公司 | Image processing method for display device and display device |
| CN204045192U (en) * | 2014-04-18 | 2014-12-24 | 全方位数位影像开发股份有限公司 | Self-image correction device for liquid crystal display |
| CN107644607A (en) * | 2016-07-22 | 2018-01-30 | 上海和辉光电有限公司 | The color temperature adjusting method and display device of display panel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108615511A (en) | 2018-10-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108615511B (en) | 2020-09-01 | Display method and display device |
| CN109147702B (en) | 2020-09-29 | Chromaticity adjusting method and device of display panel |
| TWI385615B (en) | 2013-02-11 | Gamma correction device, display apparatus including the same, and method of gamma correction therein |
| EP3340227B1 (en) | 2023-05-17 | Display apparatus and method for driving the same |
| EP3644303B1 (en) | 2024-04-03 | Display apparatus and method for driving same |
| US6611249B1 (en) | 2003-08-26 | System and method for providing a wide aspect ratio flat panel display monitor independent white-balance adjustment and gamma correction capabilities |
| US10048061B2 (en) | 2018-08-14 | Measuring method and measuring system thereof |
| US10553165B2 (en) | 2020-02-04 | Method and apparatus for detecting high-frequency component in image |
| CN109246405B (en) | 2021-04-20 | Method and system for adjusting uniformity of image tone |
| US11056078B2 (en) | 2021-07-06 | Multi-screen color correction method and electronic device using the same |
| CN102509541A (en) | 2012-06-20 | Color adjusting device, color adjusting method and display device |
| CN106847212A (en) | 2017-06-13 | Common electric voltage controls circuit and method, display panel and display device |
| CN109712583B (en) | 2021-01-01 | Method for adjusting overdrive table of display device |
| WO2021035407A1 (en) | 2021-03-04 | Temperature compensation method for display panel, display panel, and electronic device |
| CN114822440B (en) | 2023-07-07 | Liquid crystal display device having a light shielding layer |
| CN107274854B (en) | 2020-03-17 | Display device and gamma curve compensation circuit and driving method thereof |
| TWI329295B (en) | 2010-08-21 | Method and apparatus for adjusting luminosity of monitor based on image |
| JPH08313879A (en) | 1996-11-29 | Liquid crystal display device and its adjustment method |
| CN105047117A (en) | 2015-11-11 | Method for adjusting common voltage of liquid crystal display panel |
| CN107331357A (en) | 2017-11-07 | Improve the method for liquid crystal display panel ghost |
| KR20120057190A (en) | 2012-06-05 | Method and unit converting color temperature for improving emotional image quality and digital display apparatus using the same |
| TWI425495B (en) | 2014-02-01 | Color temperature compensation method and applications thereof |
| US20130342433A9 (en) | 2013-12-26 | Dynamic backlight control for video displays |
| CN109410892B (en) | 2020-09-04 | Image processing method and display device |
| CN116312335A (en) | 2023-06-23 | Brightness compensation method and device for display panel and display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 2018-10-02 | PB01 | Publication | |
| 2018-10-02 | PB01 | Publication | |
| 2018-10-30 | SE01 | Entry into force of request for substantive examination | |
| 2018-10-30 | SE01 | Entry into force of request for substantive examination | |
| 2020-09-01 | GR01 | Patent grant | |
| 2020-09-01 | GR01 | Patent grant | |
| 2020-12-29 | CP01 | Change in the name or title of a patent holder |
Address after: 9-2 Tangming Avenue, Guangming New District, Shenzhen City, Guangdong Province Patentee after: TCL China Star Optoelectronics Technology Co.,Ltd. Address before: 9-2 Tangming Avenue, Guangming New District, Shenzhen City, Guangdong Province Patentee before: Shenzhen China Star Optoelectronics Technology Co.,Ltd. |
| 2020-12-29 | CP01 | Change in the name or title of a patent holder |