WO2014153857A1 - 彩膜基板、显示面板及显示装置 - Google Patents

彩膜基板、显示面板及显示装置 Download PDF

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Publication number
WO2014153857A1
WO2014153857A1 PCT/CN2013/077425 CN2013077425W WO2014153857A1 WO 2014153857 A1 WO2014153857 A1 WO 2014153857A1 CN 2013077425 W CN2013077425 W CN 2013077425W WO 2014153857 A1 WO2014153857 A1 WO 2014153857A1
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Prior art keywords
sub
pixel
color filter
filter substrate
color
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PCT/CN2013/077425
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English (en)
French (fr)
Inventor
易师甜
樊浩原
金香馥
黄律然
Original Assignee
京东方科技集团股份有限公司
成都京东方光电科技有限公司
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Application filed by 京东方科技集团股份有限公司, 成都京东方光电科技有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US14/348,707 priority Critical patent/US9581852B2/en
Publication of WO2014153857A1 publication Critical patent/WO2014153857A1/zh

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    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509Filters, e.g. light shielding masks
    • G02F1/133514Colour filters
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00Optical elements other than lenses
    • G02B5/20Filters
    • G02B5/201Filters in the form of arrays
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509Filters, e.g. light shielding masks
    • G02F1/133512Light shielding layers, e.g. black matrix

Definitions

  • Color film substrate display panel and display device
  • Embodiments of the present invention relate to a color film substrate, a display panel, and a display device. Background technique
  • a conventional liquid crystal display includes an array substrate, a color filter substrate, and a liquid crystal filled between the array substrate and the color filter substrate.
  • the color filter substrate comprises: a substrate 1, a black matrix film layer 2 and a color film layer 3 disposed on the substrate 1.
  • the color film layer 3 includes a plurality of pixel units arranged in a matrix form, each of the pixel units including a red sub-pixel 31, a green sub-pixel 32, and a blue sub-pixel 33, and a black matrix is disposed between each sub-pixel to prevent sub-pixels Leakage at the junction.
  • the liquid crystal display forms different colors of light by adjusting the light of three colors of red, green and blue, thereby realizing display of various colors, so that the liquid crystal display can display a bright and vivid picture. Therefore, the color film substrate is a key component of the liquid crystal display.
  • the sub-pixels of the conventional color film substrate generally adopt the same design, which are all rectangular and equal in width.
  • the wavelengths of red, green, and blue light are different, and the illusion of the human eye increases the sub-pixel width of a long wavelength to form a "chromatic aberration.” That is, the widths of the sub-pixels of the three colors are visually unequal, the width of the red sub-pixel is greater than the width of the green sub-pixel, and the width of the green sub-pixel is greater than the width of the blue sub-pixel, thereby causing chromatic aberration problems, affecting the display. Visual effects. Summary of the invention
  • a color film substrate includes a substrate and a color film layer disposed on the substrate.
  • the color film layer includes pixel units arranged in a matrix, each pixel unit including at least three sub-pixels of different colors, and each of the sub-pixels includes a sub-pixel of one color.
  • the area size of each sub-pixel in each of the pixel units is inversely proportional to the wavelength of its color.
  • a display panel comprising the color filter substrate as described above.
  • a display device comprising the display panel as described above.
  • FIG. 1 is a partially enlarged schematic view of a color filter substrate in a conventional art
  • Figure 2 is a cross-sectional view taken along line A-A' of Figure 1;
  • FIG. 3 is a partially enlarged schematic view of a color filter substrate according to an embodiment of the present invention.
  • FIG. 4 is a partially enlarged schematic view of another color film substrate according to an embodiment of the present invention.
  • Figure 5 is a cross-sectional view taken along line A-A of Figure 4.
  • FIG. 6 is a partially enlarged schematic view showing another color film substrate according to an embodiment of the present invention.
  • Figure 7 is a cross-sectional view taken along line A-A' of Figure 6;
  • FIG. 8 is a partially enlarged schematic view of another color film substrate according to an embodiment of the present invention.
  • Figure 9 is a cross-sectional view taken along line A-A' of Figure 8.
  • FIG. 10 is a partially enlarged schematic view of another color filter substrate according to an embodiment of the present invention.
  • FIG. 11 is a cross-sectional view taken along line A-A' of FIG. detailed description
  • Embodiments of the present invention provide a color filter substrate, including: a substrate and a color film layer disposed on the substrate.
  • the color film layer includes pixel units arranged in a matrix form, each pixel unit includes at least three sub-pixels of different colors, and each of the sub-pixels includes a sub-sub-color of one color a pixel, and the size of each sub-pixel in each of the pixel units is inversely proportional to the wavelength of its color.
  • each pixel unit includes at least three sub-pixels of different colors, that is, each pixel unit includes at least three sub-pixels of different colors, and the at least three sub-pixels of different colors may be closely connected, or The adjacent two sub-pixels overlap at the junction to prevent light leakage between the sub-pixels.
  • the sub-subpixels of three different colors of red, green, and blue are included in each pixel unit as an example for description.
  • the pixel unit can also include sub-pixels of other colors.
  • the material forming the color film layer is preferably a resin, and may of course be other materials, for example, an inorganic material or the like. In the embodiment of the present invention, the material forming the color film layer is exemplified as a resin.
  • the "film” refers to a film formed by deposition or other processes on a substrate using a certain material. If the “film” does not require a patterning process throughout the manufacturing process, the “film” may also be referred to as a “layer”; if the “film” requires a patterning process throughout the manufacturing process, it is referred to as "before the patterning process”.
  • the film " is called a "layer” after the patterning process.
  • the "layer” after the patterning process contains at least one film "pattern”. For example, the above color film layer is formed by a resin film after a patterning process, and each sub-pixel is a pattern.
  • the pixel unit on the color filter substrate includes a red sub-subpixel 31, a green sub-pixel 32, and a blue sub-pixel 33. Since the wavelength of the red light is greater than the wavelength of the green light, and the wavelength of the green light is greater than the wavelength of the blue light, the area S1 of the red sub-sub-pixel 31 is smaller than the area S2 of the green sub-sub-pixel 32, and the area of the green sub-sub-pixel 32. S2 is smaller than the area S3 of the blue sub-pixel 33.
  • SI: S2: S3 (0.89 ⁇ 0.94): (0.95 ⁇ 0.99): 1.
  • the visual effect is optimal.
  • the area of the sub-subpixels of different colors is inversely proportional to the wavelength of the color thereof. This can improve the chromatic aberration caused by the color of the sub-subpixel, so that each sub-pixel is equally wide in visual effect, thereby improving the display effect.
  • each sub-pixel is rectangular and equal in length. Specifically, since each pixel unit is arranged in a matrix, the lengths of the sub-pixels are equal, and the area of each sub-pixel in each of the pixel units is inversely proportional to the wavelength of the color, and then the sub-sub-pixel The width of the sub-subpixel unit having a different width and a longer wavelength of the color is smaller than the width of the sub-sub-pixel having a shorter wavelength of the color. As shown in FIG. 3, the lengths of the sub-pixels in the vertical direction are equal, and the width of the red sub-pixel 31 in the horizontal direction is smaller than the width of the green sub-pixel 32, and the width of the green sub-pixel 32 is smaller than the blue sub-pixel. The width of the pixel 33. In the embodiment of the present invention, the length in the vertical direction 102 is the width, and the width in the horizontal direction 101 is the width.
  • each pixel unit at least a sub-pixel having a longer wavelength of the color further includes a brightening sub-subpixel, and the brightening sub-pixel is closely related to a sub-sub-pixel of one color of the sub-pixel.
  • the brightening sub-pixels may be transparent sub-subpixels or white sub-subpixels, and may of course be sub-pixels of other colors such as yellow.
  • the brightening sub-subpixel is a transparent sub-pixel, which can further improve the transmittance and improve the brightness of the color filter substrate.
  • the brightening sub-subpixel is taken as a transparent sub-pixel as an example for detailed description. As shown in Fig. 4 and Fig.
  • the red sub-pixel 31 and the green sub-sub-pixel 32 respectively include a transparent sub-sub-pixel 11. Since the transmittance of the transparent sub-subpixel is high, the transparent sub-pixels are disposed on the color filter substrate to increase the brightness of the color filter substrate, and the color mixture of the color filter substrate is more natural, thereby improving the display effect.
  • the area of each sub-pixel is equal. As shown in Figure 4, the area of the red sub-pixel, the area of the green sub-pixel, and the area of the blue sub-pixel are equal. Specifically, the sum of the areas of the red sub-pixel 31 and the transparent sub-sub-pixel 11 corresponding thereto is equal to the sum of the areas of the green sub-sub-pixel 32 and the transparent sub-sub-pixel 11 corresponding thereto, and is equal to the blue sub-Asia. The area of the pixel 33. Thus, when the color filter substrate further includes a black matrix, the area of each sub-pixel is equal to facilitate the formation of the black matrix.
  • the color filter substrate further includes a black matrix film layer 2.
  • the black matrix film layer 2 includes a black matrix disposed at a position where the sub-pixels meet.
  • the black matrix is disposed at a position where the sub-pixels are connected to prevent light leakage at a position where the sub-pixels meet.
  • the black matrix film layer may be disposed on the color film layer or may be disposed under the color film layer.
  • the "upper” and “lower” are based on the order in which the respective thin films are formed on the substrate, the previously produced thin film is "down", and the post-made thin film is "upper".
  • the black matrix is further disposed at a position where the sub-subpixel and the brightening sub-subpixel are connected to prevent light leakage at a position where the sub-subpixel and the brightening sub-subpixel meet .
  • each sub-pixel further includes a brightening sub-subpixel, and the bright sub-pixel is closely connected to a sub-sub-pixel of one color of the sub-pixel to which it belongs.
  • the red sub-pixel, the green sub-pixel, and the blue sub-pixel respectively include a transparent sub-sub-pixel 11.
  • the transparent sub-pixel 11 is closely connected to the red sub-sub-pixel 31.
  • the transparent sub-pixel 11 is in close contact with the green sub-pixel 32.
  • the transparent sub-pixel 11 is in close contact with the blue sub-pixel 33.
  • the areas of the sub-pixels are equal. Specifically, as shown in FIG. 8, the area of the red sub-pixel, the area of the green sub-pixel, and the area of the blue sub-pixel are equal. Specifically, the sum of the areas of the red sub-pixel 31 and the transparent sub-sub-pixel 11 corresponding thereto is equal to the sum of the areas of the green sub-sub-pixel 32 and the transparent sub-sub-pixel 11 corresponding thereto, and is equal to the blue sub-Asia. The sum of the areas of the pixel 33 and the transparent sub-pixel 11 corresponding thereto. Since the transmittance of the transparent sub-pixel is high, the transparent sub-pixel is disposed on the color filter substrate to further improve the brightness of the color filter substrate, and the color mixture of the color filter substrate can be more natural, thereby improving the display effect.
  • the area of the sub-pixel having the longest wavelength of the color occupies 2/3 or more (including 2/3) of the sub-pixel area.
  • the red wavelength is the longest, and the area is the smallest, and the area of the red sub-subpixel 31 occupies the area of the red sub-pixel 31 and the transparent sub-sub-pixel 11 corresponding thereto.
  • the sum of the sum is 2/3 or more to ensure the display effect of the color filter substrate.
  • the color filter substrate further includes a black matrix film layer 2.
  • the black matrix film layer 2 includes a black matrix disposed at a position where the sub-pixels meet. Providing a black matrix at a position where the sub-pixels are connected prevents light leakage at a position where the sub-pixels meet.
  • the black matrix is further disposed at a position where the sub-subpixel and the brightening sub-subpixel are connected to further prevent the sub-subpixel from being connected to the brightening sub-pixel. Leaking light at the location.
  • the black matrix film layer may be disposed on the upper surface of the color film layer or may be disposed under the color film layer.
  • the color filter substrate further includes: a flat layer 4, and the flat layer 4 is formed of the same material as the transparent sub-pixel. Specifically, the flat layer is disposed on the color film layer and the black matrix film layer.
  • the transparent sub-subpixel and the planarization layer are made of the same material, and the planarization layer and the brightening sub-pixel may be formed by one patterning process, that is, by one exposure.
  • both the flat layer and the brightening sub-pixel may be a resin and formed simultaneously by deposition, exposure, or the like. This reduces production steps, shortens production cycles, and saves costs.
  • the formation of transparent sub-subpixels and flat layers by one patterning process using the same material can avoid problems such as poor bonding between layers.
  • the color filter substrate further comprises a transparent conductive layer, and the transparent conductive layer comprises a common electrode.
  • the transparent conductive layer is disposed on an uppermost surface of the color filter substrate.
  • the embodiment of the invention provides a display panel, which comprises any of the color film substrates provided by the embodiments of the present invention.
  • the embodiment of the invention provides a display device, which comprises the display panel provided by the embodiment of the invention.
  • the display device may be a display device such as a liquid crystal display device or an electronic paper, and any product or component having a display function such as a television, a digital camera, a mobile phone, a tablet computer or the like including the display devices.
  • the liquid crystal display device may be a vertical electric field drive type liquid crystal display device (for example, TN (Twist Nematic) type, VA (Vertical Alignment) type liquid crystal display device), or may be horizontal.
  • An electric field driven liquid crystal display device for example, an ADS (Advanced-Super Dimensional Switching) type, an IPS (In Plane Switch) type liquid crystal display device).

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Abstract

一种彩膜基板、显示面板及显示装置。该彩膜基板包括基板以及设置在所述基板上的彩色膜层,所述彩色膜层包括以矩阵形式设置的像素单元,每一个像素单元包括至少三个不同颜色的亚像素,且每个所述亚像素包括一种颜色的次亚像素(31,32,33),每一个所述像素单元中各次亚像素的面积大小与其颜色的波长成反比。

Description

彩膜基板、 显示面板及显示装置 技术领域
本发明的实施例涉及一种彩膜基板、 显示面板及显示装置。 背景技术
LCD ( Liquid Crystal Display, 液晶显示器) 因其具有画质高、 体积小、 驱动电压低、 功耗低、 对人视力影响小等优点, 故在平板显示器市场占据着 主导地位。 传统的液晶显示器包括阵列基板、 彩膜基板以及填充在阵列基板 和彩膜基板之间的液晶。 如图 1、 图 2所示, 彩膜基板包括: 基板 1 , 设置在 所述基板 1上的黑矩阵膜层 2以及彩色膜层 3。 彩色膜层 3包括以矩阵形式 布置的多个像素单元, 每一个像素单元包括红色亚像素 31、 绿色亚像素 32 以及蓝色亚像素 33 , 且各亚像素之间设置有黑矩阵以防止亚像素相接处漏 光。 液晶显示器通过对红、 绿、 蓝三种颜色的光的调和形成不同色光, 从而 实现各种色彩的显示, 使得液晶显示器能显示亮丽鲜艳的画面。 因此, 彩膜 基板是液晶显示器的关键组成部分。
如图 1、 图 2所示, 传统的彩膜基板中各亚像素一般采取相同的设计, 其均为矩形且等长等宽。 但是红光、 绿光、 蓝光的波长不同, 人眼的错觉会 使波长长的亚像素宽度增大, 形成 "色像差" 。 也就是, 视觉上三种颜色的 亚像素的宽度不相等, 红色亚像素的宽度大于绿色亚像素的宽度, 绿色亚像 素的宽度大于蓝色亚像素的宽度, 从而引起色像差问题, 影响显示器的视觉 效果。 发明内容
根据本发明的一个方面, 提供一种彩膜基板。 该彩膜基板包括基板以及 设置在所述基板上的彩色膜层。 所述彩色膜层包括以矩阵形式设置的像素单 元, 每一个像素单元包括至少三个不同颜色的亚像素, 且每个所述亚像素包 括一种颜色的次亚像素。 每一个所述像素单元中各次亚像素的面积大小与其 颜色的波长成反比。 根据本发明的另一个方面, 提供一种显示面板, 包括如上所述的彩膜基 板。
根据本发明的再一个方面, 提供一种显示装置, 包括如上所述的显示面 板。 附图说明
为了更清楚地说明本发明实施例的技术方案, 下面将对实施例的附图作 筒单地介绍,显而易见地,下面描述中的附图仅仅涉及本发明的一些实施例, 而非对本发明的限制。
图 1为传统技术中的彩膜基板的局部放大示意图;
图 2为沿图 1的线 A- A' 截取的剖视示意图;
图 3为本发明实施例提供的彩膜基板的局部放大示意图;
图 4为本发明实施例提供的另一彩膜基板的局部放大示意图;
图 5为沿图 4的线 A- A, 截取的剖视示意图;
图 6为本发明实施例提供的另一彩膜基板的局部放大示意图;
图 7为沿图 6的线 A-A' 截取的的剖视示意图;
图 8为本发明实施例提供的另一彩膜基板的局部放大示意图;
图 9为沿图 8的线 A-A' 截取的的剖视示意图;
图 10为本发明实施例提供的另一彩膜基板的局部放大示意图; 图 11为沿图 10的线 A-A' 截取的的剖视示意图。 具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚,下面将结合附图, 对本发明实施例的技术方案进行清楚、 完整地描述。 显然, 所描述的实施例 是本发明的一部分实施例, 而不是全部的实施例。 基于所描述的本发明的实 施例, 本领域普通技术人员在无需创造性劳动的前提下所获得的所有其他实 施例, 都属于本发明保护的范围。
本发明实施例提供了一种彩膜基板, 包括: 基板以及设置在所述基板上 的彩色膜层。 所述彩色膜层包括以矩阵形式设置的像素单元, 每一个像素单 元包括至少三个不同颜色的亚像素, 且每个所述亚像素包括一种颜色的次亚 像素, 且每一个所述像素单元中各次亚像素的面积大小与其颜色的波长成反 比。
需要说明的是, 当所述亚像素仅包括一个次亚像素时, 所述次亚像素即 为亚像素。 此时, 每一个像素单元包括至少三个不同颜色的亚像素即为每一 个像素单元包括至少三个不同颜色的次亚像素, 该至少三个不同颜色的次亚 像素可以紧密相接, 也可以是相邻的两个次亚像素在相接处重叠以防止次亚 像素之间漏光。 作为示例, 在本发明的实施例中, 以每一像素单元包括红、 绿、 蓝三种不同颜色的次亚像素为例来进行说明。 当然, 像素单元也可以包 括其他颜色的次亚像素。当彩膜基板上的像素单元包括其他颜色的次亚像素, 可参照本发明的实施例进行设置, 在此不——赘述。 形成所述彩色膜层的材 料优选为树脂, 当然也可以是其他材料, 例如可以是无机材料等。 在本发明 的实施例中, 以形成所述彩色膜层的材料为树脂为例来进行详细说明。
在本发明所有实施例中, 所述 "薄膜" 是指利用某一种材料在基板上通 过沉积或其他工艺制作出的一层薄膜。 若在整个制作过程当中该 "薄膜" 无 需构图工艺, 则该 "薄膜"还可以称为 "层"; 若在整个制作过程当中该 "薄 膜"还需构图工艺, 则在构图工艺前称为 "薄膜" , 构图工艺后称为 "层" 。 经过构图工艺后的 "层" 中包含至少一个薄膜 "图案" 。 示例的, 上述的彩 色膜层是树脂薄膜经构图工艺后形成的, 而各次亚像素为图案。
如图 3所示, 所述彩膜基板上的像素单元包括红色次亚像素 31、 绿色次 亚像素 32和蓝色次亚像素 33。 由于红色光的波长大于绿色光的波长, 绿色 光的波长大于蓝色光的波长, 则所述红色次亚像素 31的面积 S1小于绿色次 亚像素 32的面积 S2,且绿色次亚像素 32的面积 S2小于蓝色次亚像素 33的 面积 S3。 优选的, SI: S2: S3= ( 0.89 ~ 0.94 ) : ( 0.95 ~ 0.99 ) : 1。 考虑 到人眼的敏感度以及误差, 当所述红色次亚像素的面积、 绿色次亚像素的面 积和蓝色次亚像素的面积满足上述比例时, 可以在各次亚像素之间实现接近 等宽的视觉效果。 由于, 通过红色树脂、 绿色树脂和蓝色树脂的光的中心波 长分别为 650nm、 550nm和 460nm。进一步优选的, SI: S2: S3=0.93:0.96:l。 根据视觉宽度正比于波长, 对波长值求倒数, 并以蓝色树脂为基准即得到各 颜色次像素的上述面积比。 当所述红色次亚像素的面积、 绿色次亚像素的面 积和蓝色次亚像素的面积满足上述比例时, 视觉效果最佳。 在本发明实施例提供的彩膜基板中, 不同颜色的次亚像素的面积与其颜 色的波长成反比。 这样可以改善由次亚像素颜色引起的色像差问题, 使各次 亚像素在视觉效果上等宽, 从而提升显示效果。
可选的, 各次亚像素均为矩形且长度相等。 具体的, 由于各像素单元以 矩阵的形式排列, 各次亚像素的长度相等, 每一个所述像素单元中各次亚像 素的面积与其颜色的波长成反比, 则每一所述次亚像素的宽度不同, 且颜色 的波长较长的次亚像素单元的宽度小于颜色的波长较短的次亚像素的宽度。 如图 3所示, 竖直方向上各次亚像素的长度相等, 则水平方向上红色次亚像 素 31的宽度小于绿色次亚像素 32的宽度,绿色次亚像素 32的宽度小于蓝色 次亚像素 33的宽度。 本发明实施例中沿竖直方向 102为长度, 沿水平方向 101为宽度。
可选的, 每一像素单元中, 至少其颜色的波长较长的亚像素还包括一个 增亮次亚像素, 该增亮次亚像素与该亚像素中的一种颜色的次亚像素紧密相 接。 所述增亮次亚像素可以是透明次亚像素也可以是白色次亚像素, 当然还 可以是黄色等其他颜色的次亚像素。 优选的, 所述增亮次亚像素为透明次亚 像素, 这样可以进一步提升透过率,提高彩膜基板的亮度。 本发明实施例中, 以所述增亮次亚像素为透明次亚像素为例进行详细说明。 如图 4、 图 5所示, 相对于蓝色光,红色光和绿色光的波长较长, 因此红色次亚像素 31和绿色次 亚像素 32分别包括一个透明次亚像素 11。 由于透明次亚像素的透过率高, 在彩膜基板上设置透明次亚像素可以提高彩膜基板的亮度, 使彩膜基板混色 更加自然, 从而能够提升显示效果。
进一步的, 当如上所述设置增亮次亚像素时, 各亚像素的面积相等。 如 图 4所示, 红色亚像素的面积、 绿色亚像素的面积和蓝色亚像素的面积三者 相等。 具体而言, 红色次亚像素 31和与之对应的透明次亚像素 11的面积之 和等于绿色次亚像素 32和与之对应的透明次亚像素 11的面积之和, 且等于 蓝色次亚像素 33的面积。 这样, 当所述彩膜基板还包括黑矩阵时, 各亚像素 的面积相等有利于黑矩阵的形成。
可选的, 如图 4、 图 5所示, 所述彩膜基板还包括黑矩阵膜层 2。 所述黑 矩阵膜层 2包括黑矩阵, 所述黑矩阵设置在各亚像素相接的位置处。 在所述 各亚像素相接的位置处设置黑矩阵可以防止各亚像素相接的位置处漏光。 需 要说明的是, 所述黑矩阵膜层可以设置在所述彩色膜层的上面, 也可以设置 在所述彩色膜层的下面。 本发明实施例中, 所述 "上" 、 "下" 以在基板上 形成各薄膜的顺序为依据,在先制作的薄膜在"下",在后制作的薄膜在"上"。
如图 6、 图 7所示, 所述黑矩阵还进一步设置在次亚像素和增亮次亚像 素相接的位置处, 用于防止次亚像素和增亮次亚像素相接的位置处漏光。
优选的, 每一像素单元中, 各亚像素均还包括一个增亮次亚像素, 该增 亮次亚像素与其所属亚像素中的一种颜色的次亚像素紧密相接。 具体的, 如 图 8、 图 9所示, 红色亚像素、 绿色亚像素和蓝色亚像素分别包括一个透明 次亚像素 11。 在红色亚像素中, 透明次亚像素 11与红色次亚像素 31紧密相 接。 在绿色亚像素中, 透明次亚像素 11与绿色次亚像素 32紧密相接。 在蓝 色亚像素中, 透明次亚像素 11与蓝色次亚像素 33紧密相接。
优选的, 当如上所述设置透明次亚像素时, 各亚像素的面积相等。 具体 的, 如图 8所示, 红色亚像素的面积、 绿色亚像素的面积和蓝色亚像素的面 积三者相等。 具体而言, 红色次亚像素 31和与之对应的透明次亚像素 11的 面积之和等于绿色次亚像素 32和与之对应的透明次亚像素 11的面积之和, 且等于蓝色次亚像素 33和与之对应的透明次亚像素 11的面积之和。 由于透 明次亚像素的透过率高, 在彩膜基板上设置透明次亚像素可以进一步提高彩 膜基板的亮度, 且可以使彩膜基板混色更加自然, 从而能够提升显示效果。
进一步优选的, 颜色的波长最长的次亚像素的面积占亚像素面积的 2/3 以上(包括 2/3 ) 。 具体的, 如图 4-图 11所示, 红色的波长最长, 则面积最 小, 且所述红色次亚像素 31的面积占红色次亚像素 31和与之对应的透明次 亚像素 11的面积之和(即, 红色亚像素的面积)的 2/3以上, 以保证彩膜基 板的显示效果。
可选的, 如图 8、 图 9所示, 所述彩膜基板还包括黑矩阵膜层 2。 所述黑 矩阵膜层 2包括黑矩阵, 所述黑矩阵设置在各亚像素相接的位置处。 在所述 各亚像素相接的位置处设置黑矩阵可以防止各亚像素相接的位置处漏光。
进一步优选的, 如图 10、 图 11所示, 所述黑矩阵还设置在次亚像素和 增亮次亚像素相接的位置处, 用于进一步防止次亚像素和增亮次亚像素相接 的位置处漏光。 需要说明的是, 所述黑矩阵膜层可以设置在所述彩色膜层的 上面, 也可以设置在所述彩色膜层的下面。 可选的, 如图 5、 图 7、 图 9、 图 11所示, 所示彩膜基板还包括: 平坦 层 4, 且形成所述平坦层 4与所述透明次亚像素的材料相同。 具体的, 所述 平坦层设置在彩色膜层和黑矩阵膜层的上面。 所述透明次亚像素和所述平坦 层的材料相同, 所述平坦层和所述增亮次亚像素可以是通过一次构图工艺形 成, 即经过一次曝光形成。 例如, 平坦层和增亮次亚像素均可以为树脂, 并 通过沉积、 曝光等工艺同时形成。 这样可以减少制作步骤, 缩短制作周期, 节省成本。 并且, 采用相同材料经过一次构图工艺形成透明次亚像素和平坦 层可以避免层与层之间衔接不好等问题。
可选的, 所述彩膜基板还包括透明导电层, 所述透明导电层包括公共电 极。 具体的, 所述透明导电层设置在所述彩膜基板的最上面。
本发明实施例提供了一种显示面板, 包括本发明实施例提供的任一所述 的彩膜基板。
本发明实施例提供了一种显示装置, 包括本发明实施例提供的所述的显 示面板。 所述显示装置可以为液晶显示装置、 电子纸等显示装置以及包括这 些显示装置的电视、 数码相机、 手机、 平板电脑等任何具有显示功能的产品 或者部件。另外,所述液晶显示装置可以是垂直电场驱动型液晶显示装置(如, TN ( Twist Nematic, 扭曲向列)型、 VA ( Vertical Alignment, 多畴垂直取向 ) 型液晶显示装置) , 也可以是水平电场驱动型液晶显示装置 (如, ADS ( Advanced-Super Dimensional Switching, 高级超维场开关)型、 IPS ( In Plane Switch, 横向电场效应)型液晶显示装置) 。
以上所述仅是本发明的示范性实施方式, 而非用于限制本发明的保护范 围, 本发明的保护范围由所附的权利要求确定。

Claims

权利要求书
1、 一种彩膜基板, 包括: 基板以及设置在所述基板上的彩色膜层, 其中所述彩色膜层包括以矩阵形式设置的像素单元 , 每一个像素单元包 括至少三个不同颜色的亚像素 ,且每个所述亚像素包括一种颜色的次亚像素 , 并且
其中每一个所述像素单元中各次亚像素的面积大 d、与其颜色的波长成反 比。
2、根据权利要求 1所述的彩膜基板,其中各次亚像素均为矩形且长度相 等。
3、根据权利要求 1所述的彩膜基板, 其中每一像素单元中, 至少其颜色 的波长较长的亚像素还包括一个增亮次亚像素, 所述次亚像素和增亮次亚像 素紧密相接。
4、根据权利要求 3所述的彩膜基板, 其中每一像素单元中,各亚像素均 还包括一个增亮次亚像素, 所述次亚像素和所述增亮次亚像素紧密相接。
5、根据权利要求 3或 4所述的彩膜基板,其中每一像素单元中各亚像素 的面积大小相等。
6、根据权利要求 3或 4所述的彩膜基板,其中所述增亮次亚像素为透明 次亚像素。
7、根据权利要求 5所述的彩膜基板,其中其颜色的波长最长的次亚像素 的面积占所述亚像素面积的 2/3以上。
8、根据权利要求 3或 4所述的彩膜基板,其中所述彩膜基板还包括黑矩 阵膜层, 所述黑矩阵膜层包括黑矩阵, 所述黑矩阵设置在各亚像素相接的位 置处。
9、根据权利要求 8所述的彩膜基板,其中所述黑矩阵还设置在次亚像素 和增亮次亚像素相接的位置处。
10、 根据权利要求 3或 4所述的彩膜基板, 其中所述彩膜基板还包括平 坦层, 且形成所述平坦层与所述增亮次亚像素的材料相同。
11、 一种显示面板, 包括权利要求 1-10任一项所述的彩膜基板。
12、 一种显示装置, 包括权利要求 11所述的显示面板。
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CN109856845B (zh) * 2019-03-12 2024-03-22 武汉华星光电技术有限公司 彩膜基板、柔性液晶显示面板及制备方法

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