CN202205005U - Color filter and liquid crystal display device - Google Patents
- ️Wed Apr 25 2012
CN202205005U - Color filter and liquid crystal display device - Google Patents
Color filter and liquid crystal display device Download PDFInfo
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Publication number
- CN202205005U CN202205005U CN2011203557894U CN201120355789U CN202205005U CN 202205005 U CN202205005 U CN 202205005U CN 2011203557894 U CN2011203557894 U CN 2011203557894U CN 201120355789 U CN201120355789 U CN 201120355789U CN 202205005 U CN202205005 U CN 202205005U Authority
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- China Prior art keywords
- pixel layer
- layer
- thickness
- reflector space
- colored filter Prior art date
- 2011-09-21 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.)
- Expired - Lifetime
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Abstract
The utility model provides a color filter and liquid crystal display device, this color filter includes: a transparent substrate (1); a pixel layer disposed on the transparent substrate (1), the pixel layer comprising: a pixel layer of the transmissive area and a pixel layer of the reflective area; black matrix layers (9) disposed at intervals between the pixel layers; a reflective layer (2) disposed on the pixel layer 1 of the reflective region; the light shielding layer (3) is used for shielding light and is arranged on the reflecting layer (2), and the light shielding layer is arranged above the reflecting layer, so that the backlight source can be prevented from generating leakage current when the light is reflected to the TFT substrate through the reflecting layer, and the display quality of the liquid crystal display device can be improved.
Description
Technical field
The utility model relates to a kind of colored filter, relates in particular to a kind of colored filter and liquid crystal indicator.
Background technology
Colored filter is the basic comprising of LCD, could form colored image through it.And the LCD of semi-transparent semi-reflective is applied to show unique advantage on the liquid crystal color screen of mobile products such as mobile phone.Under darker indoor environment, the white light of backlight sees through colored filter and obtains the bright colored image, and under bright outdoor environment, sunshine injects colored filter and reflection also can obtain bright coloured image through reflectance coating.The display of semi-transparent semi-reflective can be realized through the array base palte with semi-transparent semi-reflective, also can utilize semi-transparent semi-reflecting colored filter to realize.In order under two kinds of environment of light and shade, to obtain high-quality multicolour pattern, semi-transparent semi-reflecting colored filter must be taken into account its reflecting properties and transmission performance, and two aspect performances all require high as far as possible brightness and color saturation.
Existing semi-transparent semi-reflecting colored filter comprises: transparency carrier; Also comprise the color rete, reflection horizon and the transparent electrode layer that set gradually to the direction of said transparency carrier along the back; Color rete comprises a plurality of pixels; Each pixel comprises three subpixels, and the reflection horizon comprises isolated a plurality of reflectance coatings, and reflectance coating is positioned on each sub-pixel of color rete.
Yet, though the reflection horizon can reflect the light in the external world raising brightness, also can the light of backlight be reflexed to the TFT substrate simultaneously, cause producing leakage current, thereby influence display quality.
The utility model content
In order to solve the problems of the technologies described above, the purpose of the utility model provides a kind of colored filter and liquid crystal indicator, can prevent that the light of backlight from producing leakage current through reflective layer reflects to TFT substrate, thereby can improve the display quality of liquid crystal indicator.
In order to achieve the above object, the utility model provides a kind of colored filter, comprising:
Transparency carrier;
Pixel layer is arranged on the said transparency carrier, and said pixel layer comprises: the pixel layer of regional transmission and the pixel layer of reflector space;
Black-matrix layer is arranged between the pixel layer at interval;
The reflection horizon is arranged on the pixel layer of said reflector space; And
The light shield layer that has been used for interception is arranged on the said reflection horizon.
Preferably, the thickness of the pixel layer of said reflector space be said regional transmission
pixel layer thickness1/4～3/4.
Preferably, three's sum of the thickness of the said light shield layer of the thickness of the pixel layer of said reflector space, the thickness in said reflection horizon, top, said reflection horizon equates with the thickness of the pixel layer of said regional transmission.
Preferably, the thickness of the pixel layer of said regional transmission is identical with the thickness of the pixel layer of said reflector space.
Preferably, the span of the thickness in said reflection horizon is 0.6～1.2 μ m; The span of the thickness of the pixel layer of said regional transmission is 1～5 μ m.
Preferably, said reflection horizon is a metal film.
Preferably, said colored filter also comprises: common electrode layer or planarization layer are arranged on the pixel layer of said light shield layer, black-matrix layer and said regional transmission.
Preferably, said pixel layer comprises: red pixel layer, green pixel layer and blue pixel layer, wherein
Said red pixel layer comprises: the red pixel layer of regional transmission and the red pixel layer of reflector space;
Said green pixel layer comprises: the green pixel layer of regional transmission and the green pixel layer of reflector space;
Said blue pixel layer comprises: the blue pixel layer of regional transmission and the blue pixel layer of reflector space;
The green pixel layer of the red pixel layer of said reflector space, said reflector space and the blue pixel layer of said reflector space are provided with said reflection horizon.
Preferably, said light shield layer is to pass through to form with a composition technology with black-matrix layer.
The utility model also provides a kind of liquid crystal indicator, comprises aforesaid colored filter.
Can know by technique scheme; The embodiment of the utility model has following beneficial effect: through light shield layer is set above the reflection horizon; Solved because the light of backlight produces the problem of leakage current through reflective layer reflects to TFT substrate; Thereby make when the light with the external world reflects raising brightness, also effectively improved the display quality of liquid crystal indicator.
Description of drawings
Shown in Figure 1 is the sectional view of colored filter among the embodiment of the utility model;
Shown in Figure 2 is sectional view behind the pixel layer of colored filter is accomplished regional transmission among the embodiment of the utility model pixel layer and reflector space;
Shown in Figure 3 is that colored filter is accomplished the sectional view behind the reflection horizon among the embodiment of the utility model;
Shown in Figure 4 is that colored filter is accomplished the sectional view behind the light shield layer among the embodiment of the utility model;
Shown in Figure 5 is the sectional view of colored filter among another embodiment of the utility model.
Embodiment
Understand for the purpose, technical scheme and the advantage that make the utility model is more clear,, the utility model embodiment is done further detailed description below in conjunction with embodiment and accompanying drawing.At this, illustrative examples of the utility model and explanation are used to explain the utility model, but not as the qualification of the utility model.
As shown in Figure 1, be the sectional view of colored filter among the embodiment of the utility model, this colored filter comprises:
One
transparency carrier1;
One pixel layer is arranged on the
transparency carrier1, and pixel layer comprises: the pixel layer of regional transmission and the pixel layer of reflector space;
One black-
matrix layer9 is arranged between the pixel layer at interval;
One
reflection horizon2 is arranged on the pixel layer of reflector space, and the reflecting surface in this
reflection horizon2 is near
transparency carrier1; And
One has been used for the
light shield layer3 of interception, is arranged on the
reflection horizon2.
In the present embodiment, through
light shield layer3 is set on
reflection horizon2, the light that can effectively prevent
backlight2 reflexes to the TFT substrate and produces leakage current through the reflection horizon, thereby has improved the display quality of display panels.
As shown in Figure 1, in the present embodiment, this colored filter also comprises:
cylindrical spacer7 is arranged on the black-matrix layer 9.What certainly can understand is not limit the concrete shape of this
cylindrical spacer7 in the present embodiment.
Referring to Fig. 1, pixel layer comprises in the present embodiment: be successively set on
red pixel layer4,
green pixel layer5 and
blue pixel layer6 on the
transparency carrier1, wherein
4 comprises: the
red pixel layer41 of regional transmission and the
red pixel layer41 of reflector space;
5 comprises: the
green pixel layer51 of regional transmission and the
green pixel layer52 of reflector space;
6 comprises: the
blue pixel layer61 of regional transmission and the
blue pixel layer62 of reflector space;
The
blue pixel layer62 of the
red pixel layer42 of reflector space, the
green pixel layer52 of reflector space and reflector space is provided with
reflection horizon2.
In the present embodiment, above-mentioned
transparency carrier1 can select for use clear glass to process.Above-mentioned
light shield layer3 can select for use black matrix" (Black Matrix is called for short BM) layer to realize.This
light shield layer3 can form through a composition technology with black-matrix layer 9.What certainly can understand is not limit the material of
transparency carrier1 and
light shield layer3 in the present embodiment.
In the present embodiment, above-mentioned
reflection horizon2 can be selected metal film for use, preferred aluminium film, and what certainly can understand is not limit the implementation in
reflection horizon2 in the present embodiment.
In the present embodiment, the thickness of the pixel layer of regional transmission can be arranged to the thickness of the pixel layer of reflector space inequality, for example: the thickness of the pixel layer of reflector space be regional transmission
pixel layer thickness1/4～3/4.
Just, the thickness of the
red pixel layer42 of reflector space be regional transmission
red pixel layer41
thickness1/4～3/4; The thickness of the
green pixel layer52 of reflector space be regional transmission
green pixel layer51
thickness1/4～3/4; The thickness of the
blue pixel layer62 of reflector space be regional transmission
blue pixel layer61
thickness1/4～3/4.
What certainly can understand is that the thickness more specifically of the pixel layer of reflector space and the pixel layer of regional transmission can be adjusted according to the designing requirement of colored filter.
Referring to Fig. 1, the thickness three sum of the thickness in the thickness of the pixel layer of reflector space,
reflection horizon2,
reflection horizon2 top
light shield layers3 in the present embodiment can be arranged to equate with the thickness of the pixel layer of regional transmission.
Just, as shown in Figure 1, the thickness three sum of the thickness of the
red pixel layer42 of reflector space, the thickness in
reflection horizon2,
reflection horizon2 top
light shield layers3 equates with the thickness of the
red pixel layer41 of regional transmission;
The thickness three sum of the thickness of the
green pixel layer52 of reflector space, the thickness in
reflection horizon2,
reflection horizon2 top
light shield layers3 equates with the thickness of the
green pixel layer51 of regional transmission;
The thickness three sum of the thickness of the
blue pixel layer62 of reflector space, the thickness in
reflection horizon2,
reflection horizon2 top
light shield layers3 equates with the thickness of the
blue pixel layer61 of regional transmission.
In the present embodiment, the span of the thickness in
reflection horizon2 can be set to 0.6～1.2 μ m, the preferred 0.8 μ m of the thickness in
reflection horizon2,0.9 μ m or 1.0 μ m.What certainly can understand is that the thickness more specifically in
reflection horizon2 can be adjusted according to the designing requirement of colored filter.
In the present embodiment, the span of the thickness of the pixel layer of regional transmission can be set to 1～5 μ m.Just, the span of the thickness of the
red pixel layer41 of regional transmission is 1～5 μ m; The span of the thickness of the
blue pixel layer51 of regional transmission is 1～5 μ m; The span of the thickness of the
green pixel layer61 of regional transmission is 1～5 μ m.
Certainly, the thickness more specifically of the pixel layer of regional transmission can be adjusted according to the designing requirement of colored filter.
In the present embodiment, if the thickness of the pixel layer of reflector space is become thinner, will help shortening catoptrical stroke; Make reflected light receive the influence of photoresist to reduce to reduced levels; Strengthened reflection strength, and the pixel layer of while regional transmission remains the thickness of requirement, helps realizing preferable color saturation; Therefore, the increase of
reflection horizon2 thickness can take into account reflex and the transmission effect makes brightness and color saturation on higher level, reach balance.
2～4 illustrate manufacturing method of color filters in the present embodiment with reference to the accompanying drawings, concrete steps are following:
Step 101, on
glass substrate1, form
red pixel layer4,
green pixel layer5 and
blue pixel layer6;
Be specially: on
glass substrate1, apply positivity redness, green and blue pixel resin photoresist; Adopt gray tone or intermediate tone mask plate to form part exposure and ashing, obtain pixel layer and the pixel layer of reflector space of the regional transmission of different-thickness at reflector space.
For example:
red pixel layer4 comprises: the
red pixel layer41 of regional transmission and the
red pixel layer42 of reflector space;
5 comprises: the
green pixel layer51 of regional transmission and the
green pixel layer52 of reflector space;
6 comprises: the
blue pixel layer61 of regional transmission and the
blue pixel layer62 of reflector space, and as shown in Figure 2.
Step 102, on the pixel layer of reflector space,
form reflection horizon2;
Be specially: on the
glass substrate1 of completing steps 101, apply reflecting material, reflecting material can be the exsertile metal films of reflectivity such as aluminium film in the present embodiment.Above the pixel layer of reflector space,
form reflection horizon2 through etching technics then.
Just, on the
blue pixel layer62 of the
green pixel layer52 of the
red pixel layer42 of reflector space, reflector space and reflector space,
reflection horizon2 is set respectively.As shown in Figure 3.
Step 103, on the
glass substrate1 of completing steps 102, form
light shield layer3.
In the present embodiment, this
light shield layer3 can through with black-
matrix layer9 through realizing with a composition technology,
light shield layer3 is the film material identical with black-matrix layer 9.Certainly also be not limited to this.
Be specially: on
glass substrate1, apply the black matrix" photoresist, and obtain the black matrix" figure, like Fig. 4 through mask plate exposure and development.
Step 104, on the
glass substrate1 of completing steps 103, form
cylindrical spacer7.
Be specially: on
glass substrate1, apply the cylindrical spacer photoresist, and obtain
cylindrical spacer7, like Fig. 1 through mask plate exposure and development.
Can know by technique scheme; Light shield layer is set above the reflection horizon in the present embodiment, can have prevented that the light of backlight from producing leakage current through reflective layer reflects to TFT substrate, thereby improve the display quality of liquid crystal indicator; On the other hand; Through gray tone or half-tone mask plate, once form pixel layer and the pixel layer of reflector space of the regional transmission of different-thickness, effectively improved production efficiency.
In addition, for the flatness that improves oriented layer and in order to satisfy the needs of liquid crystal indicators such as TN type, VA type, after step 103, can also increase the step that forms common electrode layer or planarization layer 8.
Be specially, on pixel layer, form common electrode layer or planarization layer (for example indium tin oxide conductive film), make it play the effect of public electrode through masking process.Completing steps 104 forms cylindrical spacer again after having accomplished these.
As shown in Figure 5, be the sectional view of colored filter among another embodiment of the utility model, this colored filter comprises:
One
transparency carrier1;
One pixel layer is arranged on the
transparency carrier1, and pixel layer comprises: the pixel layer of regional transmission and the pixel layer of reflector space;
One
reflection horizon2 is arranged on the pixel layer of reflector space, and the reflecting surface in this
reflection horizon2 is near this
transparency carrier1;
One black-
matrix layer9 is arranged between the pixel layer at interval;
One has been used for the
light shield layer3 of interception, is arranged on the
reflection horizon2.
As shown in Figure 5, the thickness of the pixel layer of regional transmission is identical with the thickness of the pixel layer of reflector space.
Referring to Fig. 5, pixel layer comprises in the present embodiment: be successively set on
red pixel layer4,
green pixel layer5 and
blue pixel layer6 on the
transparency carrier1, wherein
4 comprises: the
red pixel layer41 of regional transmission and the
red pixel layer41 of reflector space;
5 comprises: the
green pixel layer51 of regional transmission and the
green pixel layer52 of reflector space;
6 comprises: the
blue pixel layer61 of regional transmission and the
blue pixel layer62 of reflector space;
The
blue pixel layer62 of the
red pixel layer42 of reflector space, the
green pixel layer52 of reflector space and reflector space is provided with
reflection horizon2.
In the present embodiment, this colored filter also comprises: common electrode layer (ITO layer) or planarization layer 8 are arranged on the pixel layer of
light shield layer3, black-
matrix layer9 and regional transmission.
In the present embodiment, this colored filter also comprises:
cylindrical spacer7 is arranged on the common electrode layer or planarization layer 8 of corresponding
light shield layer3 positions.
In the present embodiment, the thickness range of pixel layer is 1～5 μ m, and the thickness range in
reflection horizon2 is 0.6～1.2 μ m.Certainly, thickness can be adjusted according to the designing requirement of colored filter more specifically
Illustrate manufacturing method of color filters in the utility model with reference to Fig. 5 below, concrete steps are following:
Step 201, on
glass substrate1, form
red pixel layer4,
green pixel layer5 and
blue pixel layer6.
Be specially: coated red, green and blue pixel resin photoresist on glass substrate obtain pixel graphics through exposure imaging.
Step 202, on the pixel layer of reflector space,
form reflection horizon2;
Be specially: on the
glass substrate1 of completing steps 201, apply reflector material, the material in
reflection horizon2 can be the exsertile metal of reflectivity such as aluminium.Above reflector space,
form reflection horizon2 through etching technics then.
Step 203, on the
glass substrate1 of completing steps 202, form
light shield layer3;
In the present embodiment, this
light shield layer3 can form through a composition technology with black-
matrix layer9.
Be specially: on
glass substrate1, apply the black matrix" photoresist, and obtain the black matrix" figure through mask plate exposure and development.
Step 204, on the
glass substrate1 of completing steps 203, form common electrode layer or planarization layer 8;
Be specially: armor coated glue on
glass substrate1 makes its heat curing through heating.
Step 205, on the
glass substrate1 of completing steps 204, form
cylindrical spacer7;
Be specially: on
glass substrate1, apply the cylindrical spacer photoresist, and obtain
cylindrical spacer7 through mask plate exposure and development.
A kind of liquid crystal indicator also is provided in the present embodiment, comprises aforesaid colored filter.This liquid crystal indicator can be end products such as LCD TV, liquid crystal display device, DPF, Electronic Paper, mobile phone.
Can know by technique scheme; The embodiment of the utility model has following beneficial effect: through light shield layer is set above the reflection horizon; Solved because the light of backlight produces the problem of leakage current through reflective layer reflects to TFT substrate, thereby improved the display quality of liquid crystal indicator.
The above only is the preferred implementation of the utility model; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; Can also make some improvement and retouching, these improvement and retouching also should be regarded as the protection domain of the utility model.
Claims (10)
1. a colored filter is characterized in that, comprising:
Transparency carrier (1);
Pixel layer is arranged on the said transparency carrier (1), and said pixel layer comprises: the pixel layer of regional transmission and the pixel layer of reflector space;
Black-matrix layer (9) is arranged between the pixel layer at interval;
Reflection horizon (2) is arranged on the pixel layer of said reflector space; And
Be used for the light shield layer (3) of interception, be arranged on the said reflection horizon (2).
2. colored filter according to claim 1 is characterized in that, the thickness of the pixel layer of said reflector space be said regional transmission pixel layer thickness 1/4～3/4.
3. colored filter according to claim 2; It is characterized in that; Three's sum of the thickness of the said light shield layer (3) of the thickness of the thickness of the pixel layer of said reflector space, said reflection horizon (2), said reflection horizon (2) top equates with the thickness of the pixel layer of said regional transmission.
4. colored filter according to claim 1 is characterized in that, the thickness of the pixel layer of said regional transmission is identical with the thickness of the pixel layer of said reflector space.
5. colored filter according to claim 1 is characterized in that, the span of the thickness of said reflection horizon (2) is 0.6～1.2 μ m; The span of the thickness of the pixel layer of said regional transmission is 1～5 μ m.
6. colored filter according to claim 1 is characterized in that, said reflection horizon (2) are metal film.
7. colored filter according to claim 1 is characterized in that, said colored filter also comprises: common electrode layer or planarization layer (8) are arranged on the pixel layer of said light shield layer (3), black-matrix layer (9) and said regional transmission.
8. colored filter according to claim 1 is characterized in that, said pixel layer comprises: red pixel layer (4), green pixel layer (5) and blue pixel layer (6), wherein
Said red pixel layer (4) comprising: the red pixel layer (41) of regional transmission and the red pixel layer (42) of reflector space;
Said green pixel layer (5) comprising: the green pixel layer (51) of regional transmission and the green pixel layer (52) of reflector space;
Said blue pixel layer (6) comprising: the blue pixel layer (61) of regional transmission and the blue pixel layer (62) of reflector space;
The green pixel layer (52) of the red pixel layer (42) of said reflector space, said reflector space and the blue pixel layer (62) of said reflector space are provided with said reflection horizon (2).
9. colored filter according to claim 1 is characterized in that, said light shield layer (3) is to pass through to form with a composition technology with black-matrix layer.
10. a liquid crystal indicator is characterized in that, comprises the described colored filter of claim 1～9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203557894U CN202205005U (en) | 2011-09-21 | 2011-09-21 | Color filter and liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203557894U CN202205005U (en) | 2011-09-21 | 2011-09-21 | Color filter and liquid crystal display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202205005U true CN202205005U (en) | 2012-04-25 |
Family
ID=45969122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203557894U Expired - Lifetime CN202205005U (en) | 2011-09-21 | 2011-09-21 | Color filter and liquid crystal display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202205005U (en) |
Cited By (3)
* Cited by examiner, † Cited by third party| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105068304A (en) * | 2015-09-14 | 2015-11-18 | 武汉华星光电技术有限公司 | Color film substrate and manufacturing method thereof |
| CN108121107A (en) * | 2017-12-27 | 2018-06-05 | 武汉华星光电技术有限公司 | A kind of liquid crystal display panel and preparation method thereof |
| CN114509889A (en) * | 2022-02-08 | 2022-05-17 | 武汉华星光电技术有限公司 | Color filter substrate and its manufacturing method, and display panel |
-
2011
- 2011-09-21 CN CN2011203557894U patent/CN202205005U/en not_active Expired - Lifetime
Cited By (6)
* Cited by examiner, † Cited by third party| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105068304A (en) * | 2015-09-14 | 2015-11-18 | 武汉华星光电技术有限公司 | Color film substrate and manufacturing method thereof |
| CN105068304B (en) * | 2015-09-14 | 2018-06-01 | 武汉华星光电技术有限公司 | Color membrane substrates and preparation method thereof |
| CN108121107A (en) * | 2017-12-27 | 2018-06-05 | 武汉华星光电技术有限公司 | A kind of liquid crystal display panel and preparation method thereof |
| WO2019129097A1 (en) * | 2017-12-27 | 2019-07-04 | 武汉华星光电技术有限公司 | Liquid crystal display panel and manufacturing method therefor |
| US10852578B2 (en) | 2017-12-27 | 2020-12-01 | Wuhan China Star Optoelectronics Technology Co., Ltd. | Liquid crystal display panel and manufacturing method thereof |
| CN114509889A (en) * | 2022-02-08 | 2022-05-17 | 武汉华星光电技术有限公司 | Color filter substrate and its manufacturing method, and display panel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 2012-04-25 | C14 | Grant of patent or utility model | |
| 2012-04-25 | GR01 | Patent grant | |
| 2021-10-12 | CX01 | Expiry of patent term | |
| 2021-10-12 | CX01 | Expiry of patent term |
Granted publication date: 20120425 |