WO2018176580A1 - 一种彩色滤光基板 - Google Patents

一种彩色滤光基板 Download PDF

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Publication number
WO2018176580A1
WO2018176580A1 PCT/CN2017/083611 CN2017083611W WO2018176580A1 WO 2018176580 A1 WO2018176580 A1 WO 2018176580A1 CN 2017083611 W CN2017083611 W CN 2017083611W WO 2018176580 A1 WO2018176580 A1 WO 2018176580A1
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WIPO (PCT)
Prior art keywords
sub
pixel region
pixel
filter
color
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Ceased
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PCT/CN2017/083611
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English (en)
French (fr)
Inventor
徐海乐
沈顺杰
宋江江
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Wuhan China Star Optoelectronics Technology Co Ltd
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Wuhan China Star Optoelectronics Technology Co Ltd
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Priority to US15/539,821 priority Critical patent/US10739633B2/en
Publication of WO2018176580A1 publication Critical patent/WO2018176580A1/zh
Anticipated expiration legal-status Critical
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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133514—Colour filters
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133512—Light shielding layers, e.g. black matrix

Definitions

  • the invention belongs to the technical field of display panels, and in particular to a color filter substrate.
  • liquid crystal displays have become the most common display devices.
  • the display panel of the liquid crystal display includes a plurality of pixel unit regions arranged in an array.
  • a conventional pixel unit region generally includes three sub-pixel regions of red, green, and blue color filter photoresists, which can only generate three primary colors of red, green, and blue, and thus have a narrow color gamut.
  • the triangular or polygonal area is a color gamut corresponding to three primary colors of red, green, and blue.
  • the present invention provides a color filter substrate for increasing the color gamut of a color filter substrate and balancing color shift.
  • a color filter substrate including a plurality of pixel unit regions arranged in an array, each of the pixel unit regions including a first sub-pixel region, a second sub-pixel region, and a a third sub-pixel region, the first sub-pixel region, the second sub-pixel region, and the third sub-pixel region are respectively provided with red filter photoresist, green filter photoresist, and blue filter light Resistance,
  • a thickness of the filter photoresist disposed on the sub-pixel region corresponding to a certain filter photoresist color is greater than a sub-pixel region corresponding to the other two filter photoresist colors Set the thickness of the filter photoresist.
  • each of the pixel unit regions further includes a fourth sub-pixel region.
  • the fourth sub-pixel region includes two sub-sub-pixel regions, the filter photoresists disposed on the two sub-sub-pixel regions have different colors, and the filtering set on the two sub-sub-pixel regions The color of the light photoresist is different from the color of the filter photoresist having the largest thickness in the pixel unit region.
  • the first sub-pixel region, the second sub-pixel region, the third sub-pixel region, and the fourth sub-pixel region have the same area, and the fourth color sub-pixel region has two times The area of the sub-pixel area is equal.
  • the filter photoresists having different photoresist colors corresponding to the filter photoresist having the largest thickness have the same thickness.
  • a filter light disposed thereon is disposed in one of the pixel unit regions, in the three sub-pixel regions of the first sub-pixel region, the second sub-pixel region, and the third sub-pixel region.
  • the filter photoresists disposed on both sides of the sub-pixel region having the largest thickness and adjacent to the two sub-pixel regions have different colors.
  • a sub-pixel region of a color filter disposed thereon having a color different from a color corresponding to the maximum thickness filter photoresist is disposed on the pixel region between the sub-pixel region having the largest filter photoresist thickness and the fourth sub-pixel region, wherein the color of the filter photoresist on the sub-sub-pixel region in the fourth sub-pixel region is adjacent to other sub-pixels The color of the filter photoresist on the area is different.
  • the color filter substrate further includes: a substrate; a black matrix disposed on the substrate, wherein the black matrix is disposed adjacent to two adjacent filter photoresists The filter photoresist is between the substrate.
  • the color filter substrate further comprises: a flat layer disposed on the filter photoresist and the bare black matrix.
  • the color filter substrate further includes: a transparent conductive layer disposed on the flat layer.
  • the color filter substrate further includes: a spacer, and a projection of the spacer on the color filter substrate is located within a range of the black matrix.
  • the present invention can increase the color gamut of the color filter substrate by setting the thickness of the filter photoresist in the sub-pixel region of a certain color to be larger than the thickness of the filter photoresist in the sub-pixel region of the other two colors.
  • the color shift of the color filter substrate can be balanced by providing a fourth sub-pixel region including a sub-pixel region including the other two color filter photoresists other than the sub-pixel region corresponding to the maximum color filter of the thickness.
  • FIG. 1 is a schematic diagram of a color gamut based on red, green and blue three primary colors in the prior art
  • FIG. 2 is a schematic cross-sectional view showing a color filter substrate according to an embodiment of the present invention
  • FIG 3 is a top plan view of a color filter substrate in accordance with an embodiment of the present invention.
  • FIG. 2 is a schematic plan view of the color filter substrate of the embodiment, and FIG. 3 is a top view of FIG. 2, and the present invention will be described in detail below with reference to FIGS. 2 and 3.
  • the color filter substrate includes a plurality of pixel unit regions arranged in an array, each pixel unit region including a first sub-pixel region 211, a second sub-pixel region 212, and a third sub-pixel region 213.
  • a red filter photoresist, a green filter photoresist, and a blue filter photoresist are respectively disposed on the first sub-pixel region 211, the second sub-pixel region 212, and the third sub-pixel region 213.
  • a thickness of the filter photoresist disposed on the sub-pixel region corresponding to a specific filter photoresist color is greater than a sub-pixel region corresponding to the other two filter photoresist colors
  • the thickness of the filter photoresist that is set is set.
  • the filter photoresist of the first sub-pixel region 211 is red
  • the filter photoresist of the second sub-pixel region 212 is green
  • the filter photoresist of the third sub-pixel region 213 is blue. Description will be made, but the invention is not limited thereto.
  • the thickness of the green filter photoresist of the second sub-pixel region 212 is set to be larger than the red filter photoresist thickness of the first sub-pixel region 211, and is also larger than the blue filter light of the third sub-pixel region 213. Resistance thickness.
  • the saturation of the color light in the pixel unit region can be increased, that is, the three primary colors in FIG. 1 correspond to the color gamut formed by the end line connection,
  • the end of the color should be moved to the outside of the three primary color regions. That is to say, the color gamut area composed of the three primary colors is increased, thereby increasing the color gamut range of the color filter substrate.
  • each pixel unit region further includes a fourth sub-pixel region 214.
  • the fourth sub-pixel region includes two sub-sub-pixel regions, and the filter photoresists disposed on the two sub-sub-pixel regions have different colors, and the color of the filter photoresist disposed on the two sub-sub-pixel regions is The color of the filter photoresist having the largest thickness in the pixel unit region is different.
  • the fourth sub-pixel region is set to have two sub-pixel regions, and the two sub-pixel regions are respectively provided with red filter light. Resistance and blue filter photoresist.
  • the fourth sub-pixel region is composed of two sub-pixel regions, a red sub-pixel region 2141 and a blue sub-pixel region 2142.
  • the thickness of the green filter photoresist in the green color sub-pixel region is greater than the thickness of the red filter photoresist in the red color sub-pixel region and the blue filter photoresist in the blue sub-pixel region.
  • the thickness of the green color of the transmitted green color increases, by increasing the red filter photoresist corresponding to the red sub-sub-pixel region and the blue filter photoresist corresponding to the blue sub-sub-pixel region, so that one pixel unit region
  • the red and blue colors transmitted through the interior increase.
  • the added red color light and the blue color light and the green color light are mixed, which can balance the color shift caused by the increase of the green light saturation transmitted by the green color sub-pixel area, thereby improving the display effect of the panel.
  • the thickness of the other color filter photoresists other than the thickness maximum color filter photoresist is the same in one pixel unit region. Specifically, as shown in FIG. 2, the thickness of the filter photoresist in the green sub-pixel region is set to be maximum, and the thickness of the filter photoresist in the other color sub-pixel region is set to be equal and smaller than the green color sub-pixel region. The thickness of the filter photoresist. The thickness of the filter photoresist of the green color sub-pixel region is greater than the specific ratio of the thickness of the filter photoresist of the other color sub-pixel regions, and can be adjusted according to a preset chromaticity.
  • the thickness of the filter photoresist of the other color sub-pixel regions may be set to be unequal under the premise of the thickness of the filter photoresist of the green color sub-pixel region, and the specific thickness ratio is determined according to the preset chromaticity. Make settings.
  • the areas of the first sub-pixel region, the second sub-pixel region, the third sub-pixel region, and the fourth sub-pixel region are equal, and the second sub-pixel region of the fourth color sub-pixel region is Face The product is equal.
  • the areas of the first sub-pixel area 211, the second sub-pixel area 212, the third sub-pixel area 213, and the fourth sub-pixel area 214 are set to be equal, and the fourth sub-pixel area is to be
  • the area of the two sub-pixel regions in the middle is also set to be equal.
  • the areas of the green color sub-pixel area, the red color sub-pixel area, the blue color sub-pixel area, and the red-blue color sub-sub-pixel area (fourth sub-pixel area) may be set to be equal, and the red and blue color sub-pixel areas may be The area of the red color sub-sub-pixel area and the blue color sub-sub-pixel area in the (fourth sub-pixel area) is set to be equal.
  • the same mask plate is usually used to form the sub-pixel regions of the respective colors. Setting the areas of the first sub-pixel region, the second sub-pixel region, the third sub-pixel region, and the fourth sub-pixel region to be equal is advantageous for process implementation.
  • the areas of the first sub-pixel region, the second sub-pixel region, the third sub-pixel region, and the fourth sub-pixel region may be set to be unequal, and the present invention is not limited thereto.
  • the areas of the first sub-pixel region, the second sub-pixel region, the third sub-pixel region, and the fourth sub-pixel region are equal, and the sub-pixel regions of the two colors in the fourth color sub-pixel region are equal in area, that is, The area of the total red color pixel and the overall blue color pixel is larger than the area of the green color pixel, and the specific ratio can be set according to the filter photoresist material corresponding to the red, blue and green pixels and the thickness thereof.
  • a sub-pixel region corresponding to the maximum color filter is disposed at the other two color filter photoresists.
  • the thickness of the filter photoresist in the green color sub-pixel region is greater than the thickness of the filter photoresist in the red color sub-pixel region and the thickness of the filter photoresist in the blue color sub-pixel region.
  • the green color sub-pixel area is disposed between the red color sub-pixel area and the blue color sub-pixel area, and the setting is advantageous for balancing the color shift of the filter photoresist in the green color sub-pixel area due to the increase in thickness.
  • the red color sub-pixel area or the blue color pixel whose thickness is not the largest in the middle of the three sub-pixel areas, and the present invention is not limited thereto.
  • the fourth sub-pixel region in one pixel unit region, is disposed in a sub-pixel region corresponding to the thickness of the non-maximum other two color filter photoresists.
  • the light photoresist corresponds to the other side of the sub-pixel region, wherein the color of the second sub-pixel region filter photoresist in the fourth sub-pixel region is different from the color of the adjacent other sub-pixel region filter photoresist.
  • the fourth sub-pixel region includes the red color sub-pixel region and the blue color sub-pixel region
  • the green color sub-pixel region is disposed between the red color sub-pixel region and the blue color sub-pixel region
  • the fourth sub-pixel is When the pixel area is disposed adjacent to the side of the blue color sub-pixel area, the red color sub-sub-pixel area in the fourth sub-pixel area is adjacent to the blue color sub-pixel area.
  • the fourth sub-pixel area is adjacent to the side of the red color sub-pixel area
  • the blue color sub-sub-pixel region in the fourth sub-pixel region is adjacent to the red color sub-pixel region, as shown in FIG.
  • the color filter substrate further includes a substrate and a black matrix 22 disposed on the substrate.
  • the black matrix 22 is provided with a first sub-pixel region 211, a second sub-pixel region 212, a third sub-pixel region 213, and a fourth sub-pixel region 214 for separating sub-pixels of various colors.
  • the filter photoresist in the pixel area increases the contrast of the filter photoresist of the various colors.
  • the color filter substrate further includes a flat layer 23 disposed on each of the first sub-pixel region 211, the second sub-pixel region 212, the third sub-pixel region 213, and the fourth sub-pixel region 214.
  • the filter photoresist corresponding to the sub-pixel region and the bare black matrix 22 are as shown in FIG. 2.
  • the flat layer 23 is for planarizing a substrate on which the first sub-pixel region, the second sub-pixel region, the third sub-pixel region, and the fourth sub-pixel region are formed.
  • the color filter substrate further includes a transparent conductive layer 24 disposed on the planar layer 23, as shown in FIG. A common voltage is supplied to the transparent conductive layer 24, and the liquid crystal molecules can be rotated in cooperation with the array substrate on the corresponding side.
  • the color filter substrate further includes a spacer 25 disposed in the first sub-pixel region 211, the second sub-pixel region 212, the third sub-pixel region 213, and the fourth sub-pixel region. 214 each sub-pixel region corresponds to a filter photoresist covered black matrix 22 to reduce the aperture ratio, as shown in FIG.
  • the spacer 25 is used to control the distance between the color filter substrate and the corresponding array substrate.
  • the present invention can increase the color gamut of the color filter substrate by setting the thickness of the filter photoresist in the sub-pixel region of a certain color to be larger than the thickness of the filter photoresist in the sub-pixel region of the other two colors.
  • the color shift of the color filter substrate can be balanced by providing a fourth sub-pixel region including a sub-pixel region including the other two color filter photoresists other than the sub-pixel region corresponding to the maximum color filter of the thickness.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
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  • General Physics & Mathematics (AREA)
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Abstract

彩色滤光基板，每一像素单元区域包括第一子像素区域（211）、第二子像素区域（212）和第三子像素区域（213）及分别对应设置的红色滤光光阻、绿色滤光光阻和蓝色滤光光阻，其中，在至少一像素单元区域内，与某一滤光光阻颜色对应的子像素区域上所设置的滤光光阻的厚度大于与另外两个滤光光阻颜色对应的子像素区域上所设置的滤光光阻的厚度。

Description

一种彩色滤光基板
相关申请的交叉引用
本申请要求享有2017年3月30日提交的名称为“一种彩色滤光基板”的中国专利申请CN201710199671.9的优先权，该申请的全部内容通过引用并入本文中。
技术领域
本发明属于显示面板技术领域，具体地说，尤其涉及一种彩色滤光基板。
背景技术
随着显示技术的发展，液晶显示器已经成为最为常见的显示装置。
液晶显示器的显示面板包括多个呈阵列排布的像素单元区域。传统的一个像素单元区域通常包括红、绿、蓝三种颜色滤光光阻的三个子像素区域，其只能产生红、绿、蓝三种基色，因此色域范围较窄。如图1所示，其中的三角形或多边形区域为对应红、绿、蓝三种基色的色域。
发明内容
为解决以上问题，本发明提供了一种彩色滤光基板，用以增大彩色滤光基板的色域并平衡色偏。
根据本发明的一个实施例，提供了一种彩色滤光基板，包括呈阵列排布的多个像素单元区域，每一所述像素单元区域包括第一子像素区域、第二子像素区域和第三子像素区域，所述第一子像素区域、所述第二子像素区域和所述第三子像素区域上分别对应设置有红色滤光光阻、绿色滤光光阻和蓝色滤光光阻，
其中，
在至少一所述像素单元区域内，与某一滤光光阻颜色对应的子像素区域上所设置的滤光光阻的厚度大于与另外两个滤光光阻颜色对应的子像素区域上所设置的滤光光阻的厚度。
在本发明一具体实施例中，每一所述像素单元区域还包括第四子像素区域， 其中，所述第四子像素区域包括两个次子像素区域，所述两个次子像素区域上设置的滤光光阻具有不同颜色，且所述两个次子像素区域上所设置的滤光光阻的颜色均与所述像素单元区域中具有最大厚度的滤光光阻的颜色不同。
优选的，所述第一子像素区域、所述第二子像素区域、所述第三子像素区域和所述第四子像素区域的面积相等，所述第四色子像素区域中两个次子像素区域的面积相等。
优选的，在一个所述像素单元区域中，与具有最大厚度的滤光光阻所对应的光阻颜色相异的滤光光阻的厚度相同。
优选的，在一个所述像素单元区域中，在所述第一子像素区域、所述第二子像素区域和所述第三子像素区域三个子像素区域中，位于其上所设滤光光阻厚度最大的子像素区域两侧且相邻的两个子像素区域上所设置的滤光光阻颜色相异。
进一步优选的，在一个所述像素单元区域中，一其上所设滤光光阻的颜色异于所述最大厚度滤光光阻所对应的颜色的子像素区域，位于所述其上所设滤光光阻厚度最大的子像素区域与所述第四子像素区域之间，其中，所述第四子像素区域中的次子像素区域上的滤光光阻的颜色与邻近的其他子像素区域上的滤光光阻的颜色相异。
在本发明的一具体实施例中，所述的彩色滤光基板还包括：基底；黑矩阵，设置于所述基底上，所述黑矩阵对应两相邻滤光光阻的邻接处设置在所述滤光光阻与所述基板之间。
优选的，所述的彩色滤光基板还包括：平坦层，设置于滤光光阻以及裸露的黑矩阵上。
进一步优选的，所述的彩色滤光基板还包括：透明导电层，设置于所述平坦层上。
优选的，所述的彩色滤光基板还包括：间隙子，所述间隙子在所述彩色滤光基板上的投影位于所述黑矩阵所在范围内。
本发明的有益效果：
本发明通过将某一颜色的子像素区域中的滤光光阻的厚度设置为大于另外两颜色的子像素区域中的滤光光阻的厚度，可以提高彩色滤光基板的色域。通过设置包括除厚度最大颜色滤光光阻对应的子像素区域外的、包括另外两个颜色滤光光阻的子像素区域的第四子像素区域，可以平衡彩色滤光基板的色偏。
本发明的其他优点、目标，和特征在某种程度上将在随后的说明书中进行阐 述，并且在某种程度上，基于对下文的考察研究对本领域技术人员而言将是显而易见的，或者可以从本发明的实践中得到教导。本发明的目标和其他优点可以通过下面的说明书，权利要求书，以及附图中所特别指出的结构来实现和获得。
附图说明
附图用来提供对本申请的技术方案或现有技术的进一步理解，并且构成说明书的一部分。其中，表达本申请实施例的附图与本申请的实施例一起用于解释本申请的技术方案，但并不构成对本申请技术方案的限制。
图1是现有技术中一种基于红绿蓝三基色的色域示意图；
图2是根据本发明的一个实施例的彩色滤光基板剖面结构示意图；
图3是根据本发明的一个实施例的彩色滤光基板俯视结构示意图。
具体实施方式
以下将结合附图及实施例来详细说明本发明的实施方式，借此对本发明如何应用技术手段来解决技术问题，并达成相应技术效果的实现过程能充分理解并据以实施。本申请实施例以及实施例中的各个特征，在不相冲突前提下可以相互结合，所形成的技术方案均在本发明的保护范围之内。
为提高现有技术中采用红、绿和蓝三基色的彩色滤光基板的色域，本发明提供了一种新型广色域的彩色滤光基板，如图2所示为根据本发明的一个实施例的彩色滤光基板剖面结构示意图，图3为图2的俯视示意图，以下参考图2和图3来对本发明进行详细说明。
如图2所示，该彩色滤光基板包括呈阵列排布的多个像素单元区域，每一像素单元区域包括第一子像素区域211、第二子像素区域212和第三子像素区域213，第一子像素区域211、第二子像素区域212和第三子像素区域213上分别对应设置有红色滤光光阻、绿色滤光光阻和蓝色滤光光阻。其中，在至少一像素单元区域内，与某一特定滤光光阻颜色对应的子像素区域上所设置的滤光光阻的厚度大于与另外两个滤光光阻颜色对应的子像素区域上所设置的滤光光阻的厚度。在本发明中，以第一子像素区域211的滤光光阻为红色，第二子像素区域212的滤光光阻为绿色，第三子像素区域213的滤光光阻为蓝色为例进行说明，但本发明不限于此。例如将第二子像素区域212的绿滤光光阻的厚度设置为大于第一子像素区域211的红滤光光阻厚度，也大于第三子像素区域213的蓝滤光光 阻厚度。
在本发明中，通过增大某一颜色滤光光阻的厚度，可以增加像素单元区域中该颜色光的饱和度，即使得图1中的三基色对应端点连线组成的色域中，对应该颜色的端点向三基色区域的外侧移动。也就是说，由三基色组成的色域面积增大，从而增加了该彩色滤光基板的色域范围。
在一个像素单元区域中只增加一个颜色单色光的饱和度，虽然增加了色域范围，但可能导致色偏。因此，在本发明的一个实施例中，每一像素单元区域还包括一第四子像素区域214。其中，第四子像素区域包括两个次子像素区域，两个次子像素区域上设置的滤光光阻具有不同颜色，且两个次子像素区域上所设置的滤光光阻的颜色均与像素单元区域中具有最大厚度的滤光光阻的颜色不同。例如，在一个像素单元区域中，厚度最大颜色的滤光光阻为绿色时，第四子像素区域设置为具有两个次子像素区域，这两个次子像素区域分别设置有红色滤光光阻和蓝色滤光光阻。
如图2所示，第四子像素区域由两个次子像素区域组成，红次子像素区域2141和蓝次子像素区域2142。这样，在一个像素单元区域中，当绿颜色子像素区域中绿色滤光光阻的厚度大于红颜色子像素区域中红色滤光光阻的厚度和蓝色子像素区域中蓝色滤光光阻的厚度，导致透过的绿颜色光饱和度增加时，通过增加红色次子像素区域对应的红色滤光光阻和蓝色次子像素区域对应的蓝色滤光光阻，使得一个像素单元区域内透过的红颜色光和蓝颜色光增加。增加的红颜色光与蓝颜色光与绿颜色光混色，可以平衡由于绿颜色子像素区域透过的绿色光饱和度增加导致的色偏，从而改善面板的显示效果。
在本发明的一个实施例中，在一个像素单元区域中，除厚度最大颜色滤光光阻外的其他颜色滤光光阻的厚度相同。具体的，如图2所示，将绿色子像素区域中的滤光光阻的厚度设置为最大，其他颜色子像素区域中的滤光光阻的厚度设置为相等并且小于绿颜色子像素区域中的滤光光阻的厚度。绿颜色子像素区域的滤光光阻的厚度大于其他颜色子像素区域的滤光光阻的厚度的具体比例，可以根据预设的色度进行调节。当然，也可以将其他颜色子像素区域的滤光光阻的厚度在小于绿颜色子像素区域的滤光光阻的厚度前提下，设置为不等值，具体的厚度比例，根据预设色度进行设置。
在本发明的一个实施例中，第一子像素区域、第二子像素区域、第三子像素区域和第四子像素区域的面积相等，第四色子像素区域中两个次子像素区域的面 积相等。具体的，如图3所示，第一子像素区域211、第二子像素区域212、第三子像素区域213和第四子像素区域214的面积设置为相等，并且将第四色子像素区域中两个次子像素区域的面积也设置为相等。例如，可以将绿颜色子像素区域、红颜色子像素区域、蓝颜色子像素区域和红蓝颜色次子像素区域(第四子像素区域)的面积设置为相等，并且将红蓝颜色子像素区域(第四子像素区域)中红颜色次子像素区域和蓝颜色次子像素区域的面积设置为相等。在各颜色子像素区域制作过程中，通常采用同一个掩膜版来形成各颜色的子像素区域。将第一子像素区域、第二子像素区域、第三子像素区域和第四子像素区域的面积设置为相等，有利于工艺实现。当然，也可以将第一子像素区域、第二子像素区域、第三子像素区域和第四子像素区域的面积设置为不等，本发明不限于此。
将第一子像素区域、第二子像素区域、第三子像素区域和第四子像素区域的面积设置为相等，第四色子像素区域中两种颜色的次子像素区域面积相等，也就是说，在一个像素单元区域中，总体红颜色像素和总体蓝颜色像素的面积均大于绿颜色像素的面积，具体比例可以根据红蓝绿像素对应的滤光光阻材料及其厚度进行设定。
在本发明的一个实施例中，在一个像素单元区域中，第一子像素区域、第二子像素区域和第三子像素区域，其中，厚度最大颜色滤光光阻对应的子像素区域设置于另外两颜色滤光光阻对应的子像素区域之间。例如，如图2和图3所示，绿颜色子像素区域中滤光光阻的厚度大于红颜色子像素区域中滤光光阻的厚度和蓝颜色子像素区域中滤光光阻的厚度，将绿颜色子像素区域设置于红颜色子像素区域和蓝颜色子像素区域之间，这样设置有利于平衡绿颜色子像素区域中滤光光阻由于厚度增加导致的色偏。当然，也可以将厚度不是最大的红颜色子像素区域或蓝颜色像素设置在三个子像素区域的中间，本发明不限于此。
在本发明的一个实施例中，在一个像素单元区域中，第四子像素区域设置于厚度非最大另外两颜色滤光光阻对应的子像素区域中的其中一个子像素区域相对厚度最大颜色滤光光阻对应子像素区域的另一侧，其中，第四子像素区域中的次子像素区域滤光光阻的颜色与邻近的其他子像素区域滤光光阻的颜色不同。例如，在第四子像素区域包括红颜色次子像素区域和蓝颜色次子像素区域时，绿颜色子像素区域设置于红颜色子像素区域和蓝颜色子像素区域之间时，将第四子像素区域邻近蓝颜色子像素区域一侧设置时，则第四子像素区域中的红颜色次子像素区域靠近该蓝颜色子像素区域。将第四子像素区域邻近红颜色子像素区域一侧 设置时，则第四子像素区域中的蓝颜色次子像素区域靠近该红颜色子像素区域，如图3所示。
在本发明的一个实施例中，该彩色滤光基板还包括基底以及设置于该基底上的黑矩阵22。如图2所示，该黑矩阵22上设置有第一子像素区域211、第二子像素区域212、第三子像素区域213和第四子像素区域214，用于区隔各种颜色的子像素区域中的滤光光阻并提高各种颜色的滤光光阻的对比度。
在本发明的一个实施例中，该彩色滤光基板还包括平坦层23，设置于第一子像素区域211、第二子像素区域212、第三子像素区域213和第四子像素区域214各子像素区域对应的滤光光阻以及裸露的黑矩阵22上，如图2所示。该平坦层23用于对形成第一子像素区域、第二子像素区域、第三子像素区域和第四子像素区域的基板进行平坦化处理。
在本发明的一个实施例中，该彩色滤光基板还包括透明导电层24，设置于平坦层23上，如图2所示。向该透明导电层24提供公共电压，可以与对应侧的阵列基板配合实现液晶分子旋转。
在本发明的一个实施例中，该彩色滤光基板还包括间隙子25，设置于未被第一子像素区域211、第二子像素区域212、第三子像素区域213和第四子像素区域214各子像素区域对应的滤光光阻覆盖的黑矩阵22上，以降低开口率，如图3所示。该间隙子25用于控制彩色滤光基板与对应阵列基板之间的距离。
本发明通过将某一颜色的子像素区域中的滤光光阻的厚度设置为大于另外两颜色的子像素区域中的滤光光阻的厚度，可以提高彩色滤光基板的色域。通过设置包括除厚度最大颜色滤光光阻对应的子像素区域外的、包括另外两个颜色滤光光阻的子像素区域的第四子像素区域，可以平衡彩色滤光基板的色偏。
虽然本发明所公开的实施方式如上，但所述的内容只是为了便于理解本发明而采用的实施方式，并非用以限定本发明。任何本发明所属技术领域内的技术人员，在不脱离本发明所公开的精神和范围的前提下，可以在实施的形式上及细节上作任何的修改与变化，但本发明的专利保护范围，仍须以所附的权利要求书所界定的范围为准。

Claims (10)

  1. 一种彩色滤光基板，包括呈阵列排布的多个像素单元区域，每一所述像素单元区域包括第一子像素区域、第二子像素区域和第三子像素区域，所述第一子像素区域、所述第二子像素区域和所述第三子像素区域上分别对应设置有红色滤光光阻、绿色滤光光阻和蓝色滤光光阻，
    其中，
    在至少一所述像素单元区域内，与某一滤光光阻颜色对应的子像素区域上所设置的滤光光阻的厚度大于与另外两个滤光光阻颜色对应的子像素区域上所设置的滤光光阻的厚度。
  2. 根据权利要求1所述的彩色滤光基板，其中，每一所述像素单元区域还包括第四子像素区域，其中，所述第四子像素区域包括两个次子像素区域，所述两个次子像素区域上设置的滤光光阻具有不同颜色，且所述两个次子像素区域上所设置的滤光光阻的颜色均与所述像素单元区域中具有最大厚度的滤光光阻的颜色不同。
  3. 根据权利要求2所述的彩色滤光基板，其中，所述第一子像素区域、所述第二子像素区域、所述第三子像素区域和所述第四子像素区域的面积相等，所述第四色子像素区域中两个次子像素区域的面积相等。
  4. 根据权利要求2所述的彩色滤光基板，其中，在一个所述像素单元区域中，与具有最大厚度的滤光光阻所对应的光阻颜色相异的滤光光阻的厚度相同。
  5. 根据权利要求2所述的彩色滤光基板，其中，在一个所述像素单元区域中，在所述第一子像素区域、所述第二子像素区域和所述第三子像素区域三个子像素区域中，位于其上所设滤光光阻厚度最大的子像素区域两侧且相邻的两个子像素区域上所设置的滤光光阻颜色相异。
  6. 根据权利要求5所述的彩色滤光基板，其中，在一个所述像素单元区域中，一其上所设滤光光阻的颜色异于所述最大厚度滤光光阻所对应的颜色的子像素区域，位于所述其上所设滤光光阻厚度最大的子像素区域与所述第四子像素区域之间，其中，所述第四子像素区域中的次子像素区域上的滤光光阻的颜色与邻近的其他子像素区域上的滤光光阻的颜色相异。
  7. 根据权利要求1所述的彩色滤光基板，其中，还包括：
    基底；
    黑矩阵，设置于所述基底上，所述黑矩阵对应两相邻滤光光阻的邻接处设置 在所述滤光光阻与所述基板之间。
  8. 根据权利要求7所述的彩色滤光基板，其中，还包括：
    平坦层，设置于滤光光阻以及裸露的黑矩阵上。
  9. 根据权利要求8所述的彩色滤光基板，其中，还包括：
    透明导电层，设置于所述平坦层上。
  10. 根据权利要求7所述的彩色滤光基板，其中，还包括：
    间隙子，所述间隙子在所述彩色滤光基板上的投影位于所述黑矩阵所在范围内。
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