CN202205005U - Color filter and liquid crystal display device - Google Patents
Color filter and liquid crystal display device Download PDFInfo
- 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
- CN
- China
- Prior art keywords
- pixel layer
- layer
- thickness
- reflector space
- colored filter
- Prior art date
- 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
Links
Images
Landscapes
- Optical Filters (AREA)
Abstract
The utility model provides a color filter and a liquid crystal display device. The color filter comprises a transparent substrate (1), pixel layers, black matrix layers (9), reflecting layers (2) and shading layers (3), wherein the pixel layers are arranged on the transparent substrate (1), and comprise pixel layers in a transmission area and pixel layers in a reflection area; the black matrix layers (9) are arranged among the pixel layers at intervals; the reflecting layers (2) are arranged on the pixel layers 1 in the reflection area; and the shading layers (3) are used for shading, and are arranged on the reflecting layers (2). By the shading layers arranged above the reflecting layers, light from a backlight source can be prevented from being reflected to a thin film transistor (TFT) substrate by the reflecting layers to avoid leakage current, so that 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 thickness 1/4～3/4.
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 carrier 1;
One pixel layer is arranged on the transparency carrier 1, and pixel layer comprises: the pixel layer of regional transmission and the pixel layer of reflector space;
One black-matrix layer 9 is arranged between the pixel layer at interval;
One reflection horizon 2 is arranged on the pixel layer of reflector space, and the reflecting surface in this reflection horizon 2 is near transparency carrier 1; And
One has been used for the light shield layer 3 of interception, is arranged on the reflection horizon 2.
In the present embodiment, through light shield layer 3 is set on reflection horizon 2, the light that can effectively prevent backlight 2 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 spacer 7 is arranged on the black-matrix layer 9.What certainly can understand is not limit the concrete shape of this cylindrical spacer 7 in the present embodiment.
Referring to Fig. 1, pixel layer comprises in the present embodiment: be successively set on red pixel layer 4, green pixel layer 5 and blue pixel layer 6 on the transparency carrier 1, wherein
The blue pixel layer 62 of the red pixel layer 42 of reflector space, the green pixel layer 52 of reflector space and reflector space is provided with reflection horizon 2.
In the present embodiment, above-mentioned transparency carrier 1 can select for use clear glass to process.Above-mentioned light shield layer 3 can select for use black matrix" (Black Matrix is called for short BM) layer to realize.This light shield layer 3 can form through a composition technology with black-matrix layer 9.What certainly can understand is not limit the material of transparency carrier 1 and light shield layer 3 in the present embodiment.
In the present embodiment, above-mentioned reflection horizon 2 can be selected metal film for use, preferred aluminium film, and what certainly can understand is not limit the implementation in reflection horizon 2 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 thickness 1/4～3/4.
Just, the thickness of the red pixel layer 42 of reflector space be regional transmission red pixel layer 41 thickness 1/4～3/4; The thickness of the green pixel layer 52 of reflector space be regional transmission green pixel layer 51 thickness 1/4～3/4; The thickness of the blue pixel layer 62 of reflector space be regional transmission blue pixel layer 61 thickness 1/4～3/4.
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 horizon 2, reflection horizon 2 top light shield layers 3 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 layer 42 of reflector space, the thickness in reflection horizon 2, reflection horizon 2 top light shield layers 3 equates with the thickness of the red pixel layer 41 of regional transmission;
The thickness three sum of the thickness of the green pixel layer 52 of reflector space, the thickness in reflection horizon 2, reflection horizon 2 top light shield layers 3 equates with the thickness of the green pixel layer 51 of regional transmission;
The thickness three sum of the thickness of the blue pixel layer 62 of reflector space, the thickness in reflection horizon 2, reflection horizon 2 top light shield layers 3 equates with the thickness of the blue pixel layer 61 of regional transmission.
In the present embodiment, the span of the thickness in reflection horizon 2 can be set to 0.6～1.2 μ m, the preferred 0.8 μ m of the thickness in reflection horizon 2,0.9 μ m or 1.0 μ m.What certainly can understand is that the thickness more specifically in reflection horizon 2 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 layer 41 of regional transmission is 1～5 μ m; The span of the thickness of the blue pixel layer 51 of regional transmission is 1～5 μ m; The span of the thickness of the green pixel layer 61 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 horizon 2 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 substrate 1, form red pixel layer 4, green pixel layer 5 and blue pixel layer 6;
Be specially: on glass substrate 1, 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 layer 4 comprises: the red pixel layer 41 of regional transmission and the red pixel layer 42 of reflector space;
Step 102, on the pixel layer of reflector space, form reflection horizon 2;
Be specially: on the glass substrate 1 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 horizon 2 through etching technics then.
Just, on the blue pixel layer 62 of the green pixel layer 52 of the red pixel layer 42 of reflector space, reflector space and reflector space, reflection horizon 2 is set respectively.As shown in Figure 3.
Step 103, on the glass substrate 1 of completing steps 102, form light shield layer 3.
In the present embodiment, this light shield layer 3 can through with black-matrix layer 9 through realizing with a composition technology, light shield layer 3 is the film material identical with black-matrix layer 9.Certainly also be not limited to this.
Be specially: on glass substrate 1, 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 substrate 1 of completing steps 103, form cylindrical spacer 7.
Be specially: on glass substrate 1, apply the cylindrical spacer photoresist, and obtain cylindrical spacer 7, 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 carrier 1;
One pixel layer is arranged on the transparency carrier 1, and pixel layer comprises: the pixel layer of regional transmission and the pixel layer of reflector space;
One reflection horizon 2 is arranged on the pixel layer of reflector space, and the reflecting surface in this reflection horizon 2 is near this transparency carrier 1;
One black-matrix layer 9 is arranged between the pixel layer at interval;
One has been used for the light shield layer 3 of interception, is arranged on the reflection horizon 2.
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 layer 4, green pixel layer 5 and blue pixel layer 6 on the transparency carrier 1, wherein
The blue pixel layer 62 of the red pixel layer 42 of reflector space, the green pixel layer 52 of reflector space and reflector space is provided with reflection horizon 2.
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 layer 3, black-matrix layer 9 and regional transmission.
In the present embodiment, this colored filter also comprises: cylindrical spacer 7 is arranged on the common electrode layer or planarization layer 8 of corresponding light shield layer 3 positions.
In the present embodiment, the thickness range of pixel layer is 1～5 μ m, and the thickness range in reflection horizon 2 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 substrate 1, form red pixel layer 4, green pixel layer 5 and blue pixel layer 6.
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 horizon 2;
Be specially: on the glass substrate 1 of completing steps 201, apply reflector material, the material in reflection horizon 2 can be the exsertile metal of reflectivity such as aluminium.Above reflector space, form reflection horizon 2 through etching technics then.
Step 203, on the glass substrate 1 of completing steps 202, form light shield layer 3;
In the present embodiment, this light shield layer 3 can form through a composition technology with black-matrix layer 9.
Be specially: on glass substrate 1, apply the black matrix" photoresist, and obtain the black matrix" figure through mask plate exposure and development.
Step 204, on the glass substrate 1 of completing steps 203, form common electrode layer or planarization layer 8;
Be specially: armor coated glue on glass substrate 1 makes its heat curing through heating.
Step 205, on the glass substrate 1 of completing steps 204, form cylindrical spacer 7;
Be specially: on glass substrate 1, apply the cylindrical spacer photoresist, and obtain cylindrical spacer 7 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)
| 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 film substrate, manufacturing method thereof and display panel |
-
2011
- 2011-09-21 CN CN2011203557894U patent/CN202205005U/en not_active Expired - Lifetime
Cited By (6)
| 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 film substrate, manufacturing method thereof and display panel |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9250466B2 (en) | Transreflective color filter and method for manufacturing the same and liquid crystal display device | |
| CN202008538U (en) | Color filter | |
| CN103995390B (en) | The manufacture method of display floater, display device and display floater | |
| CN103278963A (en) | Color filtering array substrate, manufacturing method thereof and display device thereof | |
| CN104678639A (en) | Method for manufacturing color filter substrate | |
| CN107121832A (en) | Liquid crystal display | |
| CN107357076A (en) | Transmitting/reflecting LCD and preparation method thereof | |
| CN104808383A (en) | Display base plate, manufacturing method thereof, display panel and display device | |
| US20170176813A1 (en) | A display panel and a manufacturing method thereof, a display device | |
| CN202141873U (en) | Color filter and liquid crystal display panel | |
| CN101246230B (en) | Semi-permeable colorful color filter | |
| CN202205005U (en) | Color filter and liquid crystal display device | |
| EP2722709B1 (en) | Color filter substrate, liquid crystal panel, and liquid crystal display device | |
| CN101989004B (en) | Substrate, manufacturing method thereof and semi-reflection and semi-transmission LCD adopting substrate | |
| CN101520568B (en) | Semi-permeable liquid crystal display, CF substrate and manufacturing method thereof | |
| CN101153929B (en) | Semi-transmission type colored spectral filter and manufacturing method thereof | |
| CN106873233A (en) | Color membrane substrates polaroid, substrate, display panel and preparation method | |
| US20200319515A1 (en) | Display device | |
| JP2006184845A (en) | Liquid crystal display device | |
| CN102654593A (en) | Color filter, display device and preparation method of color filter | |
| US20070224524A1 (en) | Method for manufacturing color filter of transflective liquid crystal display | |
| CN107463039A (en) | Transmitting/reflecting LCD | |
| CN209118023U (en) | Display device | |
| TW200411283A (en) | Liquid crystal display device | |
| CN100516945C (en) | Method for preparing color filter and method for manufactring liquid crystal display |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120425 |
|
| CX01 | Expiry of patent term |