CN202710771U - Color light filter, liquid crystal display panel and display device - Google Patents
Color light filter, liquid crystal display panel and display device Download PDFInfo
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- CN202710771U CN202710771U CN 201220387642 CN201220387642U CN202710771U CN 202710771 U CN202710771 U CN 202710771U CN 201220387642 CN201220387642 CN 201220387642 CN 201220387642 U CN201220387642 U CN 201220387642U CN 202710771 U CN202710771 U CN 202710771U
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Abstract
The utility model provides a color light filter, a liquid crystal display panel and a liquid crystal display device, belonging to the field of liquid crystal display. The color light filter comprises a substrate, a black matrix formed on the substrate, and a color light filtering layer formed in a pixel region defined by the black matrix, wherein the color light filtering layer comprises a red light filtering layer, a green light filtering layer and a blue light filtering layer, and the thickness of the blue light filtering layer is less than that of the red light filtering layer or the green light filtering layer. According to the color light filter, the color temperature of the color light filter can be improved without reducing the overall brightness of the color light filter.
Description
Technical field
The utility model belongs to field of liquid crystal display, relates in particular to a kind of colored filter, display panels and display device.
Background technology
Colored filter is the important ingredient of liquid crystal display, and wherein colour temperature is an important parameter of colored filter.With reference to Fig. 1, this figure is the structural representation of the colored filter of prior art, and the colored filter of prior art comprises: substrate 1; Be formed on the black matrix 2 on the substrate 1; Be formed on the interior chromatic filter layer 4 of pixel region that black matrix 2 limits, described chromatic filter layer 4 comprises red filter layer R, green filter layer G and blue color filter layer B.In general, red filter layer R, green filter layer G have identical thickness with blue color filter layer B three.
China's scenery colour temperature throughout the year is higher, is 8000K ~ 9500K, and the scenic focal point chromatic rendition was best when liquid crystal display reached this colour temperature.General liquid crystal display has the function of regulating the white light colour temperature, specifically realization is finely tuned in the brightness of red (R), green (G), blue (B) three looks.If the raising colour temperature need to increase blue brightness, but the transmitance of blue color filter layer is in red, green, blue three looks minimum that the difficulty of the brightness of raising blue color filter layer is larger.Therefore in order to realize the high color temperature of colored filter, just need to reduce the brightness of red filter layer and green filter layer, cause the decline of colored filter overall brightness.And adopt the colored photoresist of high color temperature can increase a lot of costs.
Therefore, how a kind of colored filter is provided, be implemented in the situation that does not reduce the colored filter overall brightness, improve the colour temperature of colored filter, be necessary to develop a kind of method that improves simply and easily the colored filter colour temperature with regard to becoming the technical matters that those skilled in the art need to be resolved hurrily.
The utility model content
Technical problem to be solved in the utility model provides a kind of colored filter, display panels and display device, is used for improving the colour temperature of colored filter in the situation that does not reduce the colored filter overall brightness.
For solving the problems of the technologies described above, the utility model provides technical scheme as follows:
The utility model provides a kind of colored filter, comprising:
Substrate;
Be formed on the black matrix on the described substrate;
Be formed on the interior chromatic filter layer of pixel region that described black matrix limits, described chromatic filter layer comprises red filter layer, green filter layer and blue color filter layer, and the thickness of described blue color filter layer is less than the thickness of described red filter layer or described green filter layer.
Further, above-mentioned colored filter wherein, also comprises: be formed on the transparent resin layer between described substrate and the described blue color filter layer.
Further, above-mentioned colored filter, wherein: the thickness sum of described blue color filter layer and described transparent resin layer equals the thickness of described red filter layer or described green filter layer.
Further, above-mentioned colored filter, wherein: the thickness of described red filter layer equals the thickness of described green filter layer.
Further, above-mentioned colored filter wherein, also comprises: be formed on the flatness layer on described chromatic filter layer and the described black matrix.
Further, above-mentioned colored filter wherein, also comprises: be formed on the chock insulator matter on the described flatness layer.
Further, above-mentioned colored filter wherein, also comprises:
Be formed on the transparent electrode layer on the described flatness layer;
Be formed on the chock insulator matter on the described transparent electrode layer.
The utility model also provides a kind of display panels, comprises above-mentioned colored filter.
The utility model also provides a kind of display device, comprises above-mentioned display panels.
The described colored filter of the utility model embodiment, because the thickness of blue color filter layer is less than the thickness of red filter layer or green filter layer, so that blue brightness is improved, thereby do not reducing red and green brightness, namely in the situation that does not reduce the colored filter overall brightness, improved the colour temperature of colored filter.
The further technical scheme of the utility model arranges transparent resin layer between blue color filter layer and substrate, poor excessive cause bad of the section of avoiding.
Description of drawings
Fig. 1 is the structural representation of the colored filter of prior art;
Fig. 2 is the structural representation of the colored filter of the utility model the first embodiment;
Fig. 3 is the structural representation of the colored filter of the utility model the second embodiment.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with the accompanying drawings and the specific embodiments the utility model is described in detail.
With reference to Fig. 2, this figure is the structural representation of the colored filter of the utility model the first embodiment.
The described colored filter of the utility model the first embodiment comprises:
Substrate 1;
Be formed on the black matrix 4 on the substrate 1;
Be formed on the interior chromatic filter layer of pixel region that black matrix 4 limits, described chromatic filter layer comprises red filter layer R, green filter layer G and blue color filter layer B, and the thickness of described blue color filter layer B is less than the thickness of described red filter layer R or described green filter layer G.
According to the described colored filter of the utility model the first embodiment, the thickness of described blue color filter layer B is less than the thickness of described red filter layer R or described green filter layer G, like this, in described colored filter, blue brightness has obtained enhancing, thereby in the situation that does not reduce the colored filter overall brightness, improved the colour temperature of colored filter.
In the utility model the first embodiment, the thickness of the thickness of described red filter layer R and described green filter layer G can be identical.
With reference to Fig. 3, this figure is the structural representation of the colored filter of the utility model the second embodiment.
The difference of relative the first embodiment of the utility model the second embodiment is, the increase between substrate 1 and blue color filter layer B transparent resin layer 3.
The described colored filter of the utility model the second embodiment specifically comprises:
Substrate 1;
Be formed on the black matrix 2 on the substrate 1;
Be formed on the interior chromatic filter layer 4 of pixel region that black matrix 2 limits, described chromatic filter layer 4 comprises red filter layer R, green filter layer G and blue color filter layer B, and the thickness of described blue color filter layer B is less than the thickness of described red filter layer R or described green filter layer G;
Be formed on the transparent resin layer 3 between substrate 1 and the blue color filter layer B.
In the utility model the second embodiment, in order to overcome because the thickness of blue color filter layer B is poor less than the section that the thickness of red filter layer R and green filter layer G causes, further between blue color filter layer B and substrate 1, be provided with transparent resin layer 3, be used for described section difference of balance, poor excessive cause bad of the section of avoiding.Wherein, described section difference refers to the difference in height between three layers of colored filter R, G, the B, and the poor conference of section is causing liquid crystal aligning bad to box (CELL) operation.
In the present embodiment, the thickness of the thickness of described red filter layer R and described green filter layer G can be identical, and the thickness sum of described blue color filter layer B and described transparent resin layer 3 equals the thickness of described red filter layer R or green filter layer G.
Preferably, described colored filter also can comprise the flatness layer that is formed on chromatic filter layer 4 and the black matrix 2, and, be formed on the chock insulator matter on the flatness layer.The effect of flatness layer is to eliminate above-mentioned section difference, and the position of adjustable liquid crystal display in electric field.
Above-mentioned colored filter can be used for the liquid crystal panel that pixel electrode and public electrode all are arranged on array base palte, and for example fringing field switches the liquid crystal panel of (FFS) pattern.Colored filter for being used for twisted-nematic (TN) mode liquid crystal panel then also is formed with transparent electrode layer between chock insulator matter and flatness layer.
Following table has provided the colour temperature contrast of the described colored filter of the utility model the second embodiment (shown in Figure 3) with the colored filter (shown in Figure 1) of prior art.Wherein, in the described colored filter of the second embodiment of the present utility model, the thickness of red filter layer and green filter layer all can be 1.7 μ m, and the thickness of blue color filter layer can be 1.2 μ m, and the thickness of transparent resin layer can be 0.5 μ m; In the colored filter of prior art, the thickness of red filter layer, green filter layer and blue color filter layer all can be 1.7 μ m.And all colored filters all adopt with a collection of colorama and carve the glue making.Specifically to the second embodiment of the thickness that adopts above-mentioned color film thickness and transparent resin layer with adopt the prior art test white light colour temperature of above-mentioned color film thickness, comparing result sees table.
| Test white light colour temperature | |
| The utility model | 6925K |
| Scheme shown in Figure 1 | 6211K |
Can go out from upper table, the colour temperature of colored filter of the present utility model has obtained significant raising with respect to the colored filter of prior art.
The making flow process of colored filter of the present utility model is as follows:
Step S11 provides a substrate, forms black matrix at substrate;
Deceive with photoresist material of matrix in the substrate coating, after employing has the mask board to explosure and development of black Matrix Pattern, and formed black graph of matrix shape.
Step S12 forms transparent resin layer in pixel region;
At first be formed with the substrate coating photonasty transparent resin material of black matrix, then, after adopting the mask plate with blue color filter layer figure that transparent resin material is exposed and developing, obtaining described transparent resin layer.
Step S13 forms chromatic filter layer at the substrate of completing steps S12;
Can be first at the red photoresist of substrate coating, after adopting the mask plate with red filter layer figure that red photoresist is exposed and developing, just formed red filter layer; Can obtain successively green filter layer and blue color filter layer according to similar method.
Step S14 carries out the coating of transparent resin material (Over Coat, OC) material at the substrate of completing steps S13, forms flatness layer;
Step S15 forms chock insulator matter at flatness layer.
Wherein, form transparent resin layer and can adopt the same mask plate with the formation blue color filter layer.
Wherein, step S14 is optional step, and namely when not designing flatness layer in the colored filter, step S14 can omit.
In addition, as previously mentioned, for the liquid crystal panel of TN pattern, when carrying out the making of colored filter, can also comprise the step that forms transparency conducting layer between step S14 and step S15, at this moment, chock insulator matter is formed on the transparency conducting layer.
The utility model embodiment also provides a kind of display panels, and described display panels comprises the colored filter that array base palte, above-described embodiment provide, and, be filled in the liquid crystal layer between described array base palte and the described colored filter.
The utility model embodiment also provides a kind of display device, and described display device comprises above-mentioned display panels.
Should be noted that at last, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the spiritual scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (9)
1. a colored filter is characterized in that, comprising:
Substrate;
Be formed on the black matrix on the described substrate;
Be formed on the interior chromatic filter layer of pixel region that described black matrix limits, described chromatic filter layer comprises red filter layer, green filter layer and blue color filter layer, and the thickness of described blue color filter layer is less than the thickness of described red filter layer or described green filter layer.
2. colored filter as claimed in claim 1 is characterized in that, also comprises:
Be formed on the transparent resin layer between described substrate and the described blue color filter layer.
3. colored filter as claimed in claim 2 is characterized in that:
The thickness sum of described blue color filter layer and described transparent resin layer equals the thickness of described red filter layer or described green filter layer.
4. such as claim 1,2 or 3 described colored filters, it is characterized in that:
The thickness of described red filter layer equals the thickness of described green filter layer.
5. such as claim 1,2 or 3 described colored filters, it is characterized in that, also comprise:
Be formed on the flatness layer on described chromatic filter layer and the described black matrix.
6. colored filter as claimed in claim 5 is characterized in that, also comprises:
Be formed on the chock insulator matter on the described flatness layer.
7. colored filter as claimed in claim 5 is characterized in that, also comprises:
Be formed on the transparent electrode layer on the described flatness layer;
Be formed on the chock insulator matter on the described transparent electrode layer.
8. a display panels is characterized in that, comprises each described colored filter of claim 1 to 7.
9. a display device is characterized in that, comprises display panels claimed in claim 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220387642 CN202710771U (en) | 2012-08-06 | 2012-08-06 | Color light filter, liquid crystal display panel and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220387642 CN202710771U (en) | 2012-08-06 | 2012-08-06 | Color light filter, liquid crystal display panel and display device |
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| Publication Number | Publication Date |
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| CN202710771U true CN202710771U (en) | 2013-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220387642 Expired - Lifetime CN202710771U (en) | 2012-08-06 | 2012-08-06 | Color light filter, liquid crystal display panel and display device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102955289A (en) * | 2012-11-23 | 2013-03-06 | 京东方科技集团股份有限公司 | Colored film base plate as well as manufacture method, display panel and display device of color film base plate |
| CN104730760A (en) * | 2015-04-08 | 2015-06-24 | 武汉华星光电技术有限公司 | Color film substrate, liquid crystal display and color liquid crystal display device |
| WO2019042024A1 (en) * | 2017-08-31 | 2019-03-07 | 京东方科技集团股份有限公司 | Color filter substrate and preparation method thereof, display panel and display device |
| CN110137223A (en) * | 2019-04-29 | 2019-08-16 | 信利半导体有限公司 | A kind of Full-color OLED display |
| WO2020118766A1 (en) * | 2018-12-14 | 2020-06-18 | 惠科股份有限公司 | Display panel, display device, and liquid crystal display |
| US20230359088A1 (en) * | 2017-01-25 | 2023-11-09 | Innolux Corporation | Display device |
-
2012
- 2012-08-06 CN CN 201220387642 patent/CN202710771U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102955289A (en) * | 2012-11-23 | 2013-03-06 | 京东方科技集团股份有限公司 | Colored film base plate as well as manufacture method, display panel and display device of color film base plate |
| CN102955289B (en) * | 2012-11-23 | 2015-05-20 | 京东方科技集团股份有限公司 | Colored film base plate as well as manufacture method, display panel and display device of color film base plate |
| CN104730760A (en) * | 2015-04-08 | 2015-06-24 | 武汉华星光电技术有限公司 | Color film substrate, liquid crystal display and color liquid crystal display device |
| US20230359088A1 (en) * | 2017-01-25 | 2023-11-09 | Innolux Corporation | Display device |
| WO2019042024A1 (en) * | 2017-08-31 | 2019-03-07 | 京东方科技集团股份有限公司 | Color filter substrate and preparation method thereof, display panel and display device |
| US20190369439A1 (en) * | 2017-08-31 | 2019-12-05 | Boe Technology Group Co., Ltd. | Color filter substrate, production method thereof, display panel, and display apparatus |
| US10866452B2 (en) | 2017-08-31 | 2020-12-15 | Boe Technology Group Co., Ltd. | Color filter substrate, production method thereof, display panel, and display apparatus |
| EP3677953A4 (en) * | 2017-08-31 | 2021-06-09 | BOE Technology Group Co., Ltd. | Color filter substrate and preparation method thereof, display panel and display device |
| WO2020118766A1 (en) * | 2018-12-14 | 2020-06-18 | 惠科股份有限公司 | Display panel, display device, and liquid crystal display |
| US11320707B2 (en) | 2018-12-14 | 2022-05-03 | HKC Corporation Limited | Display panel, display device, and liquid crystal display |
| CN110137223A (en) * | 2019-04-29 | 2019-08-16 | 信利半导体有限公司 | A kind of Full-color OLED display |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130130 |