CN202049252U - Color filter, liquid crystal panel, and display apparatus - Google Patents
Color filter, liquid crystal panel, and display apparatus Download PDFInfo
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- CN202049252U CN202049252U CN2011201582251U CN201120158225U CN202049252U CN 202049252 U CN202049252 U CN 202049252U CN 2011201582251 U CN2011201582251 U CN 2011201582251U CN 201120158225 U CN201120158225 U CN 201120158225U CN 202049252 U CN202049252 U CN 202049252U
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 23
- 239000011159 matrix material Substances 0.000 claims abstract description 22
- 239000011347 resin Substances 0.000 claims description 58
- 229920005989 resin Polymers 0.000 claims description 58
- RSWGJHLUYNHPMX-ONCXSQPRSA-N abietic acid Chemical compound C([C@@H]12)CC(C(C)C)=CC1=CC[C@@H]1[C@]2(C)CCC[C@@]1(C)C(O)=O RSWGJHLUYNHPMX-ONCXSQPRSA-N 0.000 claims description 19
- 238000001228 spectrum Methods 0.000 abstract description 3
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 17
- 239000003086 colorant Substances 0.000 description 15
- 239000000758 substrate Substances 0.000 description 14
- 239000011521 glass Substances 0.000 description 11
- 239000011248 coating agent Substances 0.000 description 8
- 238000000576 coating method Methods 0.000 description 8
- 239000011241 protective layer Substances 0.000 description 8
- 239000010408 film Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 241001270131 Agaricus moelleri Species 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000003595 spectral effect Effects 0.000 description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 1
- 229910000423 chromium oxide Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
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- Optical Filters (AREA)
Abstract
The utility model discloses a color filter for enhancing the color saturation of a liquid crystal display apparatus, raising light utilization rate and the display brightness of a liquid crystal display apparatus, and increasing the covered spectrum scope. The color filter includes a pixel matrix composed of black matrixes with intervals, wherein the corresponding zone of every pixel of the pixel matrix includes a red sub-pixel zone for red light permeation, a green sub-pixel zone for green light permeation, a blue sub-pixel zone for blue light permeation, and a mixing sub-pixel zone for yellow and white light permeation. The utility model simultaneously discloses a liquid crystal panel and a display apparatus.
Description
Technical Field
The utility model relates to a LCD field especially relates to a color filter, liquid crystal display panel and display device.
Background
Color filters are important components of thin film transistor-liquid crystal displays (TFT-LCDs). TFT-LCDs are capable of presenting color displays, primarily by means of color filters. The color filter mainly includes a bottom glass substrate 101, and Black Matrix 102 (BM) and color resin 103 (or sub-pixel 103) layers arranged at intervals on the glass substrate 101, wherein the color resin layer generally adopts three primary colors, i.e., is composed of red resin (R), green resin (G), and blue resin (B) arranged at intervals, and one pixel 104 (i.e., one display unit) includes R, G, B three sub-pixels, and each sub-pixel is arranged in a stripe shape, as shown in fig. 1. The black matrix is arranged between the color resins and at the edge of the glass substrate. The TFT-LCD can obtain red, green and blue with different gray scales after being filtered by a color filter, and then can realize the display of various colors by carrying out color mixing.
However, when the three primary colors are used for the color resin layer, only 1/3 backlight light can pass through the color resin layer for a single pixel, and the backlight light utilization efficiency is low. Moreover, the backlight has limited brightness, and the loss is severe when light passes through the color filter, which makes the display brightness of the liquid crystal display device low. Meanwhile, with the wide application of the TFT-LCD, the color types of the three primary colors mixed display are limited, and the requirements of people on the chromaticity of color images cannot be met.
SUMMERY OF THE UTILITY MODEL
The utility model provides a color filter, liquid crystal display panel and display device can effectively improve liquid crystal display device's color saturation, improves the utilization ratio of light and improves liquid crystal display device's demonstration luminance to improve the spectral range who covers.
The utility model provides a specific technical scheme as follows:
a color filter comprising a pixel matrix formed of a black matrix, a corresponding region of each pixel in the pixel matrix comprising: a red sub-pixel region transmitting red light, a green sub-pixel region transmitting green light, a blue sub-pixel region transmitting blue light, and a mixed sub-pixel region transmitting yellow light and white light.
A liquid crystal panel comprises the color filter.
A display device comprises the liquid crystal panel.
Based on the above technical solution, the three primary colors of the color filter are expanded into five colors of red, green, blue, yellow and white, and when the color filter is implemented, a sub-pixel region transmitting red light, a sub-pixel region transmitting green light, a sub-pixel region transmitting blue light, and a mixed sub-pixel region transmitting yellow light and transmitting white light are used as one pixel region, and when the display is performed, different gray scales are formed by the five colors of red, green, blue, yellow and white and are mixed into different colors, so that the coverage of the spectrum can be improved compared with the existing color filter based on the three primary colors of red, green and blue. In addition, one sub-pixel area in the pixel area is a mixed sub-pixel composed of an area transmitting yellow light and an area transmitting white light, so that the color saturation is improved, the display brightness is improved, and the light utilization rate is improved.
Drawings
FIG. 1 is a schematic plan view of a conventional trichromatic color filter;
FIG. 2 is a schematic cross-sectional view of the color filter of the present invention;
FIG. 3 is a schematic plane view of the color filter of the present invention;
FIG. 4 is another schematic plane view of the color filter of the present invention;
fig. 5 is a flow chart of the method for manufacturing the middle color filter of the present invention.
Detailed Description
In order to improve liquid crystal display device's color saturation, improve the utilization ratio of light and improve liquid crystal display device's demonstration luminance to improve the spectral coverage who covers, the utility model provides a color filter, liquid crystal display panel and display device can adopt red, green, blue, yellow, white five kinds of colours to carry out the colour mixture, thereby improve spectral coverage, and will see through the region of yellow light and the regional combination that sees through white light and be a sub-pixel region, thereby improve color saturation and luminance, and then improved light utilization ratio.
The following describes in detail preferred embodiments of the present invention with reference to the accompanying drawings.
In the following embodiments, the material corresponding to each sub-pixel is described by taking a color resin as an example, and the present invention also includes other materials that can be used to form a color filter.
As shown in fig. 2, the color filter of the present embodiment mainly includes a transparent substrate 201 (such as a glass substrate), black matrixes 202 and color resins 203 disposed on the transparent substrate 201 at intervals, and a protective layer 204 and a transparent conductive film 205 covering the black matrixes 202 and the color resins 203, wherein,
as shown in fig. 3, a pixel matrix is formed by the black matrix 202 at intervals, wherein the corresponding region of each pixel region in the pixel matrix includes 4 sub-pixel regions, the surface of each sub-pixel region is covered with a color resin 203, and the 4 sub-pixel regions included in each pixel region are respectively a mixed sub-pixel region composed of a red sub-pixel region 304 transmitting red light, a green sub-pixel region 305 transmitting green light, a blue sub-pixel region 306 transmitting blue light, a region 307 transmitting yellow light, and a region 308 transmitting white light.
Here, the red subpixel region 304 is covered with a red resin, the green subpixel region 305 is covered with a green resin, the blue subpixel region 306 is covered with a blue resin, the region 307 which transmits yellow light in the mixed subpixel region is covered with a yellow resin, and the region 308 which transmits white light is covered with a white resin.
Therein, a red sub-pixel region 304, a green sub-pixel region 305, a blue sub-pixel region 306, and a mixed sub-pixel region are sequentially arranged. Preferably, the red sub-pixel region 304, the green sub-pixel region 305, the blue sub-pixel region 306, and the mixed sub-pixel region are arranged in sequence from left to right.
In this embodiment, the areas of the red sub-pixel region 304, the green sub-pixel region 305, the blue sub-pixel region 306 and the mixed sub-pixel region are the same.
In the mixed sub-pixel region, white resin may cover the upper half of the mixed sub-pixel region, and yellow resin covers the lower half of the mixed sub-pixel region; alternatively, as shown in fig. 4, the white resin 308 covers the lower half of the mixed sub-pixel region, and the yellow resin 307 covers the upper half of the mixed sub-pixel region; alternatively, the white resin 308 covers the middle portion and other portions of the mixed subpixel region. Further, the shape of the white resin may be rectangular, circular, or other suitable shapes. For example, in the color filter provided in this embodiment, in the mixed sub-pixel region, the white resin covers the middle portion of the mixed sub-pixel region, and the yellow resin covers the rest of the mixed sub-pixel region, where the white resin is circular.
Preferably, the area covered by the white resin in the mixed sub-pixel region is not more than one third of the area of the sub-pixel region.
The black matrix 202 is disposed between the color resins, and the edge of the glass substrate mainly serves to isolate the color resins 203.
Here, an insulating protective layer 204(overcoat layer) is coated on the black matrix 202 and the color resin 203, and a transparent conductive film 205 is sputtered on a surface of the protective layer 204, and a material of the transparent conductive film 205 may be Indium Tin Oxide (ITO). Of course, the color filter may not be provided with a protective layer and/or a transparent conductive film according to actual needs.
The utility model also discloses a liquid crystal display panel, including the color filter that this embodiment described. The color filter, the array substrate, and the liquid crystal filled therebetween together form the liquid crystal panel of the present embodiment.
The utility model also discloses a display device, including foretell liquid crystal display panel. The display device can be an electronic device with a display function, such as a television, a monitor, a computer, a mobile phone and the like.
The liquid crystal panel and the display device using the color filter have better color saturation, higher brightness and better display effect.
As shown in fig. 5, the detailed manufacturing method of the color filter in the above embodiment includes the following steps:
step 501: coating an original material layer for manufacturing a black matrix on a transparent glass substrate, adopting a mask plate mask, exposing and developing to form pixel matrixes spaced by the black matrix, wherein the corresponding area of each pixel comprises 4 sub-pixel areas.
The raw material for making the black matrix can be chromium, a composite material of chromium and chromium oxide, resin and the like.
In this embodiment, four continuous sub-pixel regions formed of a black matrix are used as one pixel region, and a color resin is coated on each sub-pixel region.
Step 502: the method comprises the steps of coating a red resin layer on a glass substrate for mask exposure and development, coating a green resin layer for mask exposure and development, and coating a blue resin layer for mask exposure and development, and forming a red sub-pixel region, a green sub-pixel region and a blue sub-pixel region in each pixel region in a covering mode.
In this embodiment, the covering in the pixel region is not limited to the color resin, and the present invention also includes other materials that can be applied to the optical filter.
Step 503: after a yellow resin layer is coated on a glass substrate for mask exposure and development, and a white resin layer is coated for mask exposure and development, yellow resin and white resin are respectively coated on corresponding areas of mixed sub-pixel areas except a red sub-pixel area, a green sub-pixel area and a blue sub-pixel area in each pixel area.
Specifically, a yellow resin layer is coated on a glass substrate for mask exposure and development, a white resin layer is coated for mask exposure and development, and then the upper half part of a mixed sub-pixel area is covered with the yellow resin and the lower half part of the mixed sub-pixel area is covered with the white resin; or, coating a yellow resin layer on the glass substrate, performing mask exposure and development, coating a white resin layer, performing mask exposure and development, covering the lower half part of the mixed sub-pixel region with the yellow resin, and covering the upper half part of the mixed sub-pixel region with the white resin; alternatively, a yellow resin layer is coated on a glass substrate, and is subjected to mask exposure and development, and a white resin layer is coated, and is subjected to mask exposure and development, and then, the white resin is coated on the intermediate portion and other portions of the mixed sub-pixel region, and the remaining portion is coated with the yellow resin. The shape of the white resin may be rectangular, circular, or other suitable shape. In this embodiment, the middle portion of the mixed sub-pixel region may be covered with a white resin, and the remaining portion may be covered with a yellow resin, where the white resin is circular.
Preferably, the area occupied by the white resin is not more than one third of the area of the mixed sub-pixel region.
Wherein, 4 sub-pixel regions in one pixel region sequentially correspond to the red sub-pixel region, the green sub-pixel region, the blue sub-pixel region and the mixed sub-pixel region. Preferably, the red sub-pixel region, the green sub-pixel region, the blue sub-pixel region and the mixed sub-pixel region are arranged from left to right.
Step 504: a protective layer is formed on the surfaces of the black matrix and the color resins, and a transparent conductive film is formed on the surface of the protective layer.
After coating the corresponding color resin on each interval of the black matrix, coating an insulating protective layer on the surfaces of the black matrix and each color resin, and sputtering a conductive film on the surface of the protective layer, wherein the material of the conductive film can be Indium Tin Oxide (ITO).
Based on the above embodiment, the three primary colors of the color filter are expanded to five colors of red, green, blue, yellow and white, and when the color filter is implemented, the yellow resin and the white resin are combined to form the mixed sub-pixel region, and the red sub-pixel region, the green sub-pixel region, the blue sub-pixel region and the mixed sub-pixel region are used as one pixel region, so that when the color filter is used for displaying, different gray scales are formed by the five colors of red, green, blue, yellow and white, and the gray scales are mixed to different colors, and therefore, compared with the existing color filter based on the three primary colors of red, green and blue, the coverage range of the spectrum can be improved. In addition, since the mixed sub-pixel area in the pixel area is a combination of yellow resin and white resin, the color saturation can be improved, the display brightness can be improved, the light utilization rate can be improved, and the display device adopting the color filter in the embodiment has a better display effect.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A color filter comprising a pixel matrix formed of a black matrix, wherein a corresponding region of each pixel in the pixel matrix comprises: a red sub-pixel region transmitting red light, a green sub-pixel region transmitting green light, a blue sub-pixel region transmitting blue light, and a mixed sub-pixel region transmitting yellow light and white light.
2. The color filter according to claim 1, wherein the red sub-pixel region is covered with a red resin;
the green sub-pixel area is covered with green resin;
the blue sub-pixel area is covered with blue resin;
the region of the mixed sub-pixel region which transmits yellow light is covered with yellow resin, and the region which transmits white light is covered with white resin.
3. The color filter according to claim 2, wherein the red sub-pixel region, the green sub-pixel region, the blue sub-pixel region, and the mixed sub-pixel region are sequentially arranged.
4. The color filter according to claim 3, wherein the red sub-pixel region, the green sub-pixel region, the blue sub-pixel region, and the mixed sub-pixel region are arranged in order from left to right.
5. The color filter of claim 4, wherein the areas of the red sub-pixel region, the green sub-pixel region, the blue sub-pixel region and the mixed sub-pixel region are the same.
6. The color filter according to claim 5, wherein in the mixed sub-pixel region, a white resin covers an upper half of the mixed sub-pixel region, and a yellow resin covers a lower half of the mixed sub-pixel region;
or,
white resin covers the lower half of the mixed sub-pixel region, and yellow resin covers the upper half of the mixed sub-pixel region.
7. The color filter according to claim 5, wherein a white resin covers a middle portion of the mixed sub-pixel region, a yellow resin covers the remaining portion of the mixed sub-pixel region, and the white resin has a circular shape.
8. The color filter according to claim 6 or 7, wherein the white resin covers an area not more than one third of an area of the mixed sub-pixel region.
9. A liquid crystal panel comprising the color filter according to any one of claims 1 to 8.
10. A display device comprising the liquid crystal panel according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201582251U CN202049252U (en) | 2011-05-18 | 2011-05-18 | Color filter, liquid crystal panel, and display apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201582251U CN202049252U (en) | 2011-05-18 | 2011-05-18 | Color filter, liquid crystal panel, and display apparatus |
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| CN202049252U true CN202049252U (en) | 2011-11-23 |
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| CN2011201582251U Expired - Lifetime CN202049252U (en) | 2011-05-18 | 2011-05-18 | Color filter, liquid crystal panel, and display apparatus |
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Cited By (11)
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| WO2013159527A1 (en) * | 2012-04-27 | 2013-10-31 | 京东方科技集团股份有限公司 | Display device, color filter and manufacturing method thereof |
| CN103926730A (en) * | 2013-01-11 | 2014-07-16 | 三星显示有限公司 | Display device |
| WO2015096439A1 (en) * | 2013-12-27 | 2015-07-02 | 京东方科技集团股份有限公司 | Pixel unit, display device and drive method therefor |
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2011
- 2011-05-18 CN CN2011201582251U patent/CN202049252U/en not_active Expired - Lifetime
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| WO2013159527A1 (en) * | 2012-04-27 | 2013-10-31 | 京东方科技集团股份有限公司 | Display device, color filter and manufacturing method thereof |
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| US10607523B2 (en) | 2015-07-17 | 2020-03-31 | Boe Technology Group Co., Ltd. | Color filter substrate assembly, manufacturing method thereof, and display apparatus and display method thereof |
| CN105607338B (en) * | 2016-03-24 | 2018-12-21 | 京东方科技集团股份有限公司 | Display base plate and its manufacturing method and display device |
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| WO2017161894A1 (en) * | 2016-03-24 | 2017-09-28 | Boe Technology Group Co., Ltd. | Display substrate, manufacturing method thereof, and display apparatus |
| WO2019127727A1 (en) * | 2017-12-29 | 2019-07-04 | 深圳市华星光电半导体显示技术有限公司 | Color filter and white organic light-emitting diode display device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
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Granted publication date: 20111123 |