WO2013010457A1 - 彩色滤光片基板、液晶面板及液晶显示器 - Google Patents

彩色滤光片基板、液晶面板及液晶显示器 Download PDF

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Publication number
WO2013010457A1
WO2013010457A1 PCT/CN2012/078623 CN2012078623W WO2013010457A1 WO 2013010457 A1 WO2013010457 A1 WO 2013010457A1 CN 2012078623 W CN2012078623 W CN 2012078623W WO 2013010457 A1 WO2013010457 A1 WO 2013010457A1
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Prior art keywords
sub
pixel
color
pixels
filter substrate
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PCT/CN2012/078623
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English (en)
French (fr)
Inventor
王强涛
李文兵
马新利
李岩
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京东方科技集团股份有限公司
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Priority to US13/703,719 priority Critical patent/US9213197B2/en
Publication of WO2013010457A1 publication Critical patent/WO2013010457A1/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
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B2207/00Coding scheme for general features or characteristics of optical elements and systems of subclass G02B, but not including elements and systems which would be classified in G02B6/00 and subgroups
    • G02B2207/113Fluorescence
    • 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
    • G02F2201/00Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/52RGB geometrical arrangements

Definitions

  • Embodiments of the present invention relate to a color filter substrate, a liquid crystal panel, and a liquid crystal display. Background technique
  • TFT-LCD thin film field effect transistor liquid crystal display
  • a liquid crystal display is mainly formed by pairing a thin film transistor array substrate, a liquid crystal, and a color filter substrate.
  • the thin film transistor array substrate includes, for example, a glass substrate, a gate line, a data line, a thin film field effect transistor, a pixel electrode, an insulating protective layer, and the like.
  • each basic pixel is composed of three sub-pixels of RGB, and each sub-pixel is controlled by a gate line and a data line connected thereto.
  • Each sub-pixel has a sub-pixel electrode corresponding thereto.
  • the color filter substrate includes, for example, a glass substrate, a black matrix, a common electrode, a color filter layer, a transparent resin protective layer, and a columnar spacer formed on the black matrix region.
  • Each pixel (also referred to as a basic pixel) of the color filter layer in the color filter substrate is composed of three sub-pixels of red, green, and blue RGB.
  • the RGB sub-pixels in the color filter substrate correspond to the positions and shapes of the RGB sub-pixel electrodes in the array substrate.
  • the color filter substrate provides color for display, transmits different colors of light through sub-pixels of different colors, and controls the light transmission intensity of different color sub-pixels to present the color desired by the user.
  • the color gamut generally refers to the ratio of the area between the color coordinates of each sub-pixel to the area between the color coordinates specified by the National Television Standards Committee (NTSC) standard.
  • the color gamut of a typical liquid crystal display screen is about 70%, that is, it can restore about 70% of the color in the NTSC chromaticity diagram. If the color gamut is higher than 90%, it is called a wide color gamut display. In this paper, the color gamut of a general liquid crystal display screen is about 70%. This makes many original colors unable to be displayed and lost during the display process, so it is very important and necessary to increase the color gamut to achieve better color reproduction.
  • Multi-color (greater than three colors) sub-pixel technology that is, using four sub-pixels of the same area but different colors to form a basic pixel, which can realize the high color gamut display of the current development trend of TFT-LCD technology, and then Achieve better color reproduction.
  • the color gamut is improved, but the pixel area is the same, The resolution of the display has not been improved.
  • the liquid crystal panel in the conventional art has a problem that it is impossible to provide a high color gamut while maintaining a high resolution.
  • a color filter substrate includes a plurality of basic pixels, wherein each of the basic pixels includes sub-pixels of four colors, wherein the number of sub-pixels of at least one color is greater than or equal to two.
  • a liquid crystal panel is provided.
  • the liquid crystal panel includes the color filter substrate as described above.
  • a liquid crystal display comprises the liquid crystal panel as described above.
  • FIG. 1 is a schematic view of an exemplary color filter substrate according to a first embodiment of the present invention, wherein one basic pixel has 6 sub-pixels;
  • FIG. 2 is a cross-sectional view showing a color filter substrate according to a first embodiment of the present invention, wherein one basic pixel has 6 sub-pixels;
  • FIG. 3 is a schematic view showing another exemplary color filter substrate according to a first embodiment of the present invention, wherein one basic pixel has 5 sub-pixels;
  • FIG. 4 is a color gamut diagram of a color filter substrate having four color sub-pixels under an LED backlight according to a first embodiment of the present invention
  • FIG. 5 is a color gamut diagram of a color filter substrate having four color sub-pixels under a CCFL backlight according to a first embodiment of the present invention
  • FIG. 6 is a schematic structural view of a liquid crystal panel according to a second embodiment of the present invention.
  • FIG. 7 is a schematic structural view of a liquid crystal display according to a third embodiment of the present invention.
  • the first embodiment of the present invention provides a color filter substrate, and each of the color filter substrates
  • the basic pixel also called "pixel”
  • the basic pixel includes sub-pixels of four colors, and the number of sub-pixels of at least one of the four color sub-pixels is greater than or equal to two. This ensures that there are at least five sub-pixels in one basic pixel, and thus the resolution is improved with respect to the conventional technique of composing basic pixels by four sub-pixels of the same area.
  • base pixel is used to implement a basic color image point constituting a picture during display, and the color represented by the image point is obtained by mixing light from each sub-pixel of the basic pixel. .
  • the switches constituting the respective sub-pixels of each basic pixel are collectively controlled.
  • the number of sub-pixels of at least one of the colors is equal to one.
  • each sub-pixel is arranged in a row.
  • the sub-pixels of the above four colors include RGB trichromatic sub-pixels, and sub-pixels of other colors.
  • sub-pixels of other colors are yellow sub-pixels, pink sub-pixels or cyan sub-pixels.
  • sub-pixels of other colors are yellow sub-pixels.
  • a sub-pixel with a number greater than or equal to two is a green sub-pixel, because the human eye feels more sensitive to green sensitivity with the same resolution.
  • the basic pixels of the color filter substrate according to the first embodiment of the present invention have the same area as the basic pixels composed of four sub-pixels of the same area but different colors in the conventional art. Therefore, when the number of sub-pixels of at least one color is greater than or equal to two in the first embodiment according to the present invention, the area of the sub-pixel of the at least one color will be less than or equal to the area of the sub-pixel area in the above conventional technique. One of the points.
  • each basic pixel 10 of the color filter substrate 100 includes a first color sub-pixel 11 such as a red sub-pixel, a second color sub-pixel 12 such as a blue sub-pixel, and a third color sub-pixel. 13 such as a yellow sub-pixel and three fourth color sub-pixels 14 such as a green sub-pixel.
  • the first color sub-pixel 11, the second color sub-pixel 12, and the third color sub-pixel 13 have the same area, and the area of each fourth color sub-pixel is equal to one-third of the sub-pixel area of the other colors.
  • the colors of the first color sub-pixel 11, the second color sub-pixel 12, the third color sub-pixel 13, and the fourth color sub-pixel are not limited to the above-described exemplary colors.
  • the color filter substrate can be made to have a higher color gamut resolution because a fourth color sub-pixel having a larger area d is used. Also higher.
  • each sub-pixel of the basic pixel 10 is arranged in a row, and each of the basic pixels 10 includes a first color sub-pixel 11, a second color sub-pixel 12, and a third color sub-pixel 13.
  • the number of sub-pixels of the fourth color is three, and the area of the sub-pixel of each fourth color is equal to one-third of the area of the sub-pixel of the other color.
  • the first color sub-pixel 11 is a red sub-pixel
  • the second color sub-pixel 12 is a blue sub-pixel
  • the third color sub-pixel 13 is a yellow sub-pixel
  • the fourth color sub-pixel 14 is a green sub-pixel
  • the first pixel row is cyclically arranged with basic pixels composed of red, green, blue, green, yellow, green, and sub-pixels
  • the second pixel row is cyclically arranged with basic pixels composed of blue, green, yellow, green, red, green, and sub-pixels
  • the third pixel row is cyclically arranged by the basic pixels composed of yellow, green, red, green, blue, green, and sub-pixels, and the subsequent lines are deduced by analogy. That is, except for the first row, the sub-pixels of the basic pixels of each pixel row are arranged in the order of shifting a larger sub-pixel and a smaller sub-pixel to the right on the basis of the previous pixel row.
  • the sub-pixels of the basic pixels of the first pixel row are arranged in the order of shifting a larger sub-pixel and a smaller sub-pixel to the left on the basis of the second pixel row. It is of course also possible that the second pixel row is cyclically arranged by a basic pixel composed of yellow green, red, green, blue, green, and sub-pixels, and the third pixel row is cyclically arranged with basic pixels composed of blue, green, yellow, green, red, green, and sub-pixels, and the subsequent lines are deduced by analogy.
  • the sub-pixels of the basic pixels of each pixel row are arranged in the order of shifting a sub-pixel having a larger area and a sub-area having a smaller area to the left on the basis of the previous pixel row.
  • the pixel, the sub-pixel of the basic pixel of the first pixel row is arranged in the order of shifting a larger sub-pixel and a smaller sub-pixel to the right on the basis of the second pixel row.
  • a cross-sectional view of the color filter substrate is as shown in FIG. 2, and a black matrix BM 15, a first color sub-pixel 11, a second color sub-pixel 12, a third color sub-pixel 13 and The fourth color sub-pixel 14.
  • Fig. 3 is a schematic illustration of another exemplary color filter substrate in accordance with a first embodiment of the present invention, wherein one elementary pixel 10 has five sub-pixels.
  • each basic pixel 10 of the color filter substrate includes a first color sub-pixel 11 such as a red sub-pixel, a second color sub-pixel 12 such as a blue sub-pixel, and a third color sub-pixel 13.
  • a yellow sub-pixel, and two fourth color sub-pixels 14, such as a green sub-pixel have an area equal to one-half the area of the sub-pixels of the other colors.
  • the basic pixels consisting of red, green, blue, green, and yellow sub-pixels are arranged in a loop.
  • the colors of the first color sub-pixel 11, the second color sub-pixel 12, the third color sub-pixel 13, and the fourth color sub-pixel are not limited to the above exemplary s color.
  • the third color sub-pixel 13 can be a cyan sub-pixel.
  • each pixel row is cyclically arranged with basic pixels composed of red, green, blue, green, blue, green, sub-pixels, or each pixel row is cyclically arranged with basic pixels composed of red, green, blue, green, and blue sub-pixels.
  • the color gamut range 21 can reach 100% or more of the NTSC-defined color gamut 20 or more.
  • High such as the wide color gamut cold cathode fluorescent tube CCFL backlight, as shown in Figure 5, its color gamut 22 range is higher than 70% of the NTSC specified color gamut 20.
  • the contribution of the fourth color to the increase of the color gamut depends on its color coordinates, and yellow, blue and pink are more effective. It should be noted that white cannot increase the color gamut.
  • the resolution is expressed in terms of the number of pixels per inch (Pixels per inch).
  • the scheme in which the number of sub-pixels of the fourth color is three and the area of the sub-pixels of each fourth color is equal to one-third of the sub-pixel area of the other colors is composed substantially the same as the four sub-pixels of the same area. Compared to the traditional technology of pixels, the resolution is increased by 50%.
  • a second embodiment of the present invention provides a liquid crystal panel 200.
  • the liquid crystal panel 200 includes the color filter substrate 100 as described above.
  • the liquid crystal panel 200 further includes an array substrate (not shown) disposed opposite the color filter substrate 100 to form a liquid crystal cell.
  • the array substrate includes basic pixels corresponding to basic pixels on the color filter substrate, and sub-pixels corresponding to sub-pixels of each of the basic pixels.
  • Each of the basic pixels is determined by a corresponding gate line and a data line, wherein the switches of the respective sub-pixels are uniformly controlled by the gate lines, and thus the intensity of each sub-pixel is controlled by a data signal applied on the corresponding data line, thereby A basic image point is implemented when displayed.
  • a third embodiment of the present invention provides a liquid crystal display. As shown in FIG. 7, the liquid crystal display 300 The liquid crystal panel 200 as described above is included. The liquid crystal display may further include a backlight (not shown) disposed at the rear of the liquid crystal panel 200 to provide a light source for display of the liquid crystal panel 200.
  • a backlight not shown

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
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  • Crystallography & Structural Chemistry (AREA)
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Abstract

一种彩色滤光片基板(100),液晶面板(200)和液晶显示器(300),其中彩色滤光片基板(100)包括多个基本像素(10),每个基本像素(10)包括四种颜色的亚像素(11,12,13,14),其中至少一种颜色的亚像素(14)的数量大于等于二。

Description

彩色滤光片基板、 液晶面板及液晶显示器 技术领域
本发明的实施例涉及一种彩色滤光片基板、 液晶面板及液晶显示器。 背景技术
随着薄膜场效应晶体管液晶显示(TFT-LCD )技术的发展和进步, 液晶 显示器件的生产成本降低, 制造工艺日益完善, 使其成为当前显示领域的主 流技术。
液晶显示器 (LCD )主要由薄膜晶体管阵列基板、 液晶和彩色滤光片 ( color filter )基板对盒而成。 薄膜晶体管阵列基板例如包括: 玻璃基板、 栅 线、 数据线、 薄膜场效应晶体管、 像素电极和绝缘保护层等。 在薄膜晶体管 阵列基板中, 通常每个基本像素由 RGB三个亚像素组成, 每个亚像素由与 之相连的栅线和数据线共同控制。 每个亚像素具有与其对应的亚像素电极。
彩色滤光片基板例如包括: 玻璃基板、 黑矩阵、 公共电极、 彩色滤光片 层、 透明树脂保护层以及形成在所述黑矩阵区域之上的柱状隔垫物。 彩色滤 光片基板中彩色滤光片层的每个像素(也称基本像素) 由红绿蓝 RGB三个 亚像素组成。 彩色滤光片基板中的 RGB亚像素与阵列基板中的 RGB亚像素 电极的位置和形状相对应。
彩色滤光片基板为显示提供色彩, 通过不同颜色的亚像素透过不同颜色 的光, 并控制不同颜色亚像素的透光强度而呈现出用户所需要的颜色。
色域一般是指各亚像素的色坐标之间的面积与 (美国) 国家电视标准委 员会(NTSC )标准规定的色坐标之间的面积之比。 一般的液晶显示屏幕的 色域为 70%左右, 即其能还原 NTSC色度图中 70%左右的颜色。 如果色域高 于 90%则称为广色域显示器, 本文中以一般的液晶显示屏幕的色域为 70%左 右进行说明。 这就使得很多原有的色彩在显示过程中无法显示和丟失, 故增 大色域实现更好的色彩再现是非常关键和必要的。 多颜色(大于三种颜色) 亚像素技术, 即釆用例如四个面积相同但颜色不同的亚像素组成基本像素, 可以实现目前 TFT-LCD技术的发展趋势之所追求高色域显示, 进而可以实 现更好的色彩还原效果。 虽然色域得到了提高,但在像素面积相同的前提下, 显示器的分辨率没有得到提高。
由此可见传统技术中的液晶面板存在无法在提供高色域的同时保持较 高的分辨率的问题。 发明内容
根据本发明的一个实施例, 提供一种彩色滤光片基板。 该彩色滤光片基 板包括多个基本像素, 其中每个基本像素包括四种颜色的亚像素, 其中至少 一种颜色的亚像素的数量大于等于二。
根据本发明的另一个实施例, 提供一种液晶面板。 该液晶面板包括如上 所述的彩色滤光片基板。
根据本发明的再一个实施例, 提供一种液晶显示器。 该液晶显示器包括 如上所述的液晶面板。 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 作简单地介绍, 显而易见地, 下面描述中的附图仅仅是本发明的一些实施 例, 对于本领域普通技术人员来讲, 在不付出创造性劳动性的前提下, 还 可以根据这些附图获得其他的附图。
图 1所示为根据本发明第一实施例的一种示例性的彩色滤光片基板的示 意图, 其中一个基本像素具有 6个亚像素;
图 2所示为根据本发明第一实施例的彩色滤光片基板的剖面图, 其中一 个基本像素具有 6个亚像素;
图 3所示为根据本发明第一实施例的另一中示例性的彩色滤光片基板的 示意图, 其中一个基本像素具有 5个亚像素;
图 4所示为根据本发明第一实施例的具有四种颜色亚像素的彩色滤光片 基板在 LED背光源下的色域图;
图 5所示为根据本发明第一实施例的具有四种颜色亚像素的彩色滤光片 基板在 CCFL背光源下的色域图;
图 6所示为根据本发明第二实施例的液晶面板的结构示意图; 以及 图 7所示为才艮据本发明第三实施例的液晶显示器的结构示意图。 具体实施方式
下面将结合附图详细描述本发明的实施例。 为了解决传统技术中的彩色 滤光片基板在提供高色域的同时无法保持较高分辨率的问题,本发明第一实 施例提供一种彩色滤光片基板, 该彩色滤光片基板的各基本像素(也称 "像 素"), 包括四种颜色的亚像素, 这四种颜色亚像素中至少一种颜色的亚像素 的数量大于等于二。 这样就可以保证在一个基本像素中至少有五个亚像素, 因此相对于由面积相同的四个不同颜色的亚像素组成基本像素的传统技术, 分辨率得到了提高。在本申请之中, "基本像素"用于在显示的过程中实现构 成画面的一个基本的彩色图像点, 该图像点所呈现的颜色由混合来自该基本 像素的各个亚像素的光混合而得到。 构成每个基本像素的各个亚像素的开关 被统一控制。
例如, 为了降低实现工艺的复杂度, 其中至少一种颜色的亚像素的数量 等于一。
例如, 在每个基本像素中, 各亚像素排成一排。
例如, 上述四种颜色的亚像素包括 RGB三基色亚像素, 和其它一种颜 色的亚像素。 例如, 其它一种颜色的亚像素为黄色亚像素、 粉色亚像素或青 色亚像素。 例如, 其它一种颜色的亚像素为黄色亚像素。 通过釆用黄色亚像 素, 可以提高彩色滤光片的透过率。 这是因为黄色亚像素相对于红、 绿、 蓝 亚像素具有更高的透过率, 故能从整体上提高彩色滤光片的透过率。
例如, 数量大于等于二的亚像素为绿色亚像素, 这是因为在实际的分辨 率相同的情况下, 人眼对绿色敏感性会感觉分辨率更高。
需要说明的是, 根据本发明第一实施例的彩色滤光片基板的基本像素与 传统技术中由四个面积相同但颜色不同的亚像素组成的基本像素具有相同的 面积。 因此, 当在根据本发明的第一实施例中至少一种颜色的亚像素的数量 大于等于二时, 该至少一种颜色的亚像素的面积将小于等于上述传统技术中 的亚像素面积的二分之一。
下面, 结合图 1对本发明第一实施例进行具体说明。 图 1所示为根据本 发明第一实施例的彩色滤光片基板的示意图, 其中一个基本像素 10 具有 6 个亚像素。 如图 1所示, 彩色滤光片基板 100的各基本像素 10, 包括一个第 一颜色亚像素 11如红色亚像素、 一个第二颜色亚像素 12如蓝色亚像素、 一 个第三颜色亚像素 13如黄色亚像素和三个第四颜色亚像素 14如绿色亚像素。 第一颜色亚像素 11、 第二颜色亚像素 12和第三颜色亚像素 13面积相同, 每 个第四颜色的亚像素的面积等于其它颜色的亚像素面积的三分之一。 当然, 第一颜色亚像素 11、 第二颜色亚像素 12、 第三颜色亚像素 13和第四颜色亚 像素的颜色不局限于上述示例性的颜色。 此外, 需要特别注意的是, 本实施 例中不对哪种颜色的亚像素作为第四颜色亚像素进行限定。
在根据本发明第一实施例的彩色滤光片基板中, 由于釆用了面积较 d、的 第四颜色亚像素, 就可以使彩色滤光片基板在具有较高色域的基础上分辨率 也较高。
如图 1所示, 基本像素 10的各个亚像素排成一排, 每个基本像素 10包 括第一颜色亚像素 11、 第二颜色亚像素 12和第三颜色亚像素 13各一个。 第 四颜色的亚像素的数量为三个, 每个第四颜色的亚像素的面积等于其它颜色 的亚像素面积的三分之一。 例如, 第一颜色亚像素 11为红色亚像素, 第二颜 色亚像素 12为蓝色亚像素, 第三颜色亚像素 13为黄色亚像素, 第四颜色亚 像素 14为绿色亚像素, 则在每个像素行中, 循环排列由 "红绿蓝绿黄绿…" 亚像素组成的基本像素(即 RGBGYGRGBGYG ... )
此外, 对于不同的像素行来说, 例如第一像素行循环排列由红绿蓝绿黄 绿…亚像素组成的基本像素, 第二像素行循环排列由蓝绿黄绿红绿…亚像素 组成的基本像素, 第三像素行循环排列由黄绿红绿蓝绿…亚像素组成的基本 像素, 后续的各行以此类推。 也就是, 除第一行外, 各像素行的基本像素的 亚像素的排列顺序为, 在上一像素行的基础上向右偏移一个面积较大的亚像 素和一个面积较小的亚像素,第一像素行的基本像素的亚像素的排列顺序为, 在第二像素行的基础上向左偏移一个面积较大的亚像素和一个面积较小的亚 像素。 当然也可以是第二像素行循环排列由黄绿红绿蓝绿…亚像素组成的基 本像素, 第三像素行循环排列由蓝绿黄绿红绿…亚像素组成的基本像素, 后 续的各行以此类推。 也就是, 除第一像素行外, 各像素行的基本像素的亚像 素的排列顺序为, 在上一像素行的基础上向左偏移一个面积较大的亚像素和 一个面积较小的亚像素, 第一像素行的基本像素的亚像素的排列顺序为, 在 第二像素行的基础上向右偏移一个面积较大的亚像素和一个面积较小的亚像 素。
上述彩色滤光片基板的剖面图如图 2所示,在玻璃基板 30上沉积有黑矩 阵 BM 15、 第一颜色亚像素 11、 第二颜色亚像素 12、 第三颜色亚像素 13和 第四颜色亚像素 14。
图 3所示为根据本发明第一实施例的另一个示例性的彩色滤光片基板的 示意图, 其中一个基本像素 10具有 5个亚像素。如图 3所示,彩色滤光片基 板的每个基本像素 10包括一个第一颜色亚像素 11如红色亚像素, 一个第二 颜色亚像素 12如蓝色亚像素, 一个第三颜色亚像素 13如黄色亚像素, 以及 两个第四颜色亚像素 14如绿色亚像素, 第四颜色亚像素 14的面积等于其它 颜色的亚像素面积的二分之一。 在每个像素行中, 循环排列由红绿蓝绿黄… 亚像素组成的基本像素。
对于图 1和图 3所示出的彩色滤光片基板, 第一颜色亚像素 11、 第二颜 色亚像素 12、 第三颜色亚像素 13和第四颜色亚像素的颜色不局限于上述示 例性的颜色。 例如, 第三颜色亚像素 13可以是青色亚像素。 在此情形下, 每 个像素行循环排列由红绿蓝绿青绿...亚像素组成的基本像素, 或者每个像素 行循环排列由红绿蓝绿青 ...亚像素组成的基本像素。
对于根据本发明第一实施例的彩色滤光片基板, 如果釆用与之匹配的发 光二极管 LED背光源则如图 4所示其色域范围 21可达到 NTSC规定色域 20 的 100%或者更高, 如釆用宽色域冷阴极萤光灯管 CCFL背光源则如图 5所 示其色域 22范围比 NTSC规定色域 20的 70%高。 除红绿蓝三基色外, 第四 颜色对色域增大的贡献取决于其色坐标, 比较有效的是黄、 青和粉红。 应该 注意的是, 白色不能增大色域。
通常, 用每英寸所拥有的像素数目 (Pixels per inch )来表示分辨率。 釆 用第四颜色的亚像素的数量为三个并且每个第四颜色的亚像素的面积等于其 它颜色的亚像素面积的三分之一的方案, 与由面积相同的四个亚像素组成基 本像素的传统技术相比, 分辨率会提高 50%。
本发明第二实施例提供一种液晶面板 200, 如图 6所示, 液晶面板 200 包括如前所述的彩色滤光片基板 100。 该液晶面板 200还包括与该彩色滤光 片基板 100相对放置以形成液晶盒(cell ) 的阵列基板(未示出)。 该阵列基 板包括与彩色滤光片基板上的基本像素对应的基本像素, 以及与每个基本像 素的亚像素对应的亚像素。 每个基本像素由相应的栅线和数据线确定, 其中 的各个亚像素的开关由栅线统一控制, 进而每个亚像素的光强通过相应的数 据线上施加的数据信号控制, 由此在显示时实现一个基本的图像点。
本发明第三实施例提供一种液晶显示器, 如图 7所示, 液晶显示器 300 包括如前所述的液晶面板 200。 该液晶显示器还可以包括背光源 (未示出), 该背光源设置在液晶面板 200的后方从而为液晶面板 200的显示提供光源。
以上实施例仅用以说明本发明的技术方案而非对其进行限制, 尽管参照 较佳实施例对本发明进行了详细的说明, 本领域的普通技术人员应当理解: 其依然可以对本发明的技术方案进行修改或者等同替换, 而这些修改或者等 同替换亦不能使修改后的技术方案脱离本发明技术方案的精神和范围。

Claims

权利要求书
1、一种彩色滤光片基板, 包括多个基本像素, 其中每个基本像素包括四 种颜色的亚像素, 其中至少一种颜色的亚像素的数量大于等于二。
2、根据权利要求 1所述的彩色滤光片基板,其中至少一种颜色的亚像素 的数量等于一。
3、根据权利要求 2所述的彩色滤光片基板,其中每个基本像素包括一个 第一颜色亚像素、 一个第二颜色亚像素、 一个第三颜色亚像素和至少两个第 四颜色亚像素, 第一颜色亚像素、 第二颜色亚像素和第三颜色亚像素面积相 同, 每个第四颜色亚像素面积小于等于其它颜色亚像素面积的二分之一。
4、根据权利要求 3所述的彩色滤光片基板,其中每个基本像素的各个亚 像素排成一排。
5、根据权利要求 4所述的彩色滤光片基板,其中该第四颜色的亚像素的 数量为三个, 每个第四颜色的亚像素的面积等于其它颜色的亚像素面积的三 分之一。
6、根据权利要求 5所述的彩色滤光片基板,其中在每个像素行中循环排 列由第一颜色亚像素、第四颜色亚像素、第二颜色亚像素、 第四颜色亚像素、 第三颜色亚像素和第四颜色亚像素组成的基本像素。
7、 根据权利要求 5所述的彩色滤光片基板, 其中
除第一像素行外, 各像素行的基本像素的亚像素的排列顺序为, 在上一 行的基础上向右偏移一个面积较大的亚像素和一个面积较小的亚像素, 第一 像素行的基本像素的亚像素的排列顺序为, 在第二像素行的基础上向左偏移 一个面积较大的亚像素和一个面积较小的亚像素; 或者
除第一像素行外, 各像素行的基本像素的亚像素的排列顺序为, 在上一 行的基础上向左偏移一个面积较大的亚像素和一个面积较小的亚像素, 第一 像素行的基本像素的亚像素的排列顺序为, 在第二像素行的基础上向右偏移 一个面积较大的亚像素和一个面积较小的亚像素。
8、根据权利要求 4所述的彩色滤光片基板,其中第四颜色的亚像素的数 量为两个, 每个第四颜色的亚像素的面积等于其它颜色的亚像素面积的二分 之一。
9、根据权利要求 8所述的彩色滤光片基板,其中每个像素行交替排列由 第一颜色亚像素、 第四颜色亚像素、 第二颜色亚像素、 第四颜色亚像素和第 三颜色亚像素组成的基本像素。
10、 根据权利要求 1所述的彩色滤光片基板, 其中四种颜色的亚像素包 括 RGB三基色亚像素, 和其它一种颜色的亚像素。
11、根据权利要求 10所述的彩色滤光片基板,其中其它一种颜色的亚像 素为黄色亚像素、 粉色亚像素或青色亚像素。
12、根据权利要求 10所述的彩色滤光片基板,其中其它一种颜色的亚像 素为黄色亚像素。
13、 根据权利要求 3所述的彩色滤光片基板, 其中第四颜色亚像素为绿 色亚像素。
14、 根据权利要求 3所述的彩色滤光片基板, 其中第四颜色亚像素为黄 色亚像素。
15、 一种液晶面板, 其中该液晶面板包括如权利要求 1所述的彩色滤光 片基板。
16、一种液晶显示器,其中该液晶显示器包括如权利要求 15所述的液晶 面板。
PCT/CN2012/078623 2011-07-15 2012-07-13 彩色滤光片基板、液晶面板及液晶显示器 WO2013010457A1 (zh)

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