CN101075029A - LCD panel - Google Patents
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- CN101075029A CN101075029A CN 200610078261 CN200610078261A CN101075029A CN 101075029 A CN101075029 A CN 101075029A CN 200610078261 CN200610078261 CN 200610078261 CN 200610078261 A CN200610078261 A CN 200610078261A CN 101075029 A CN101075029 A CN 101075029A
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- 230000010287 polarization Effects 0.000 claims abstract description 13
- 239000010408 film Substances 0.000 claims description 82
- 239000010410 layer Substances 0.000 claims description 60
- 239000010409 thin film Substances 0.000 claims description 29
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- YVTHLONGBIQYBO-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) Chemical compound [O--].[Zn++].[In+3] YVTHLONGBIQYBO-UHFFFAOYSA-N 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 16
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- 238000000034 method Methods 0.000 description 43
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- 230000000694 effects Effects 0.000 description 6
- 238000010884 ion-beam technique Methods 0.000 description 6
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- 229920001721 polyimide Polymers 0.000 description 3
- 210000001061 forehead Anatomy 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910021417 amorphous silicon Inorganic materials 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
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- 230000007613 environmental effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
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Abstract
Description
技术领域technical field
本发明是有关于一种液晶显示面板、主动组件基板及彩色滤光基板的制作方法,且特别是有关于一种由改变彩色滤光基板上的配向膜的方向以取代已知的黑矩阵的液晶显示面板、主动组件基板及彩色滤光基板的制作方法。The present invention relates to a manufacturing method of a liquid crystal display panel, an active component substrate and a color filter substrate, and in particular relates to a method of replacing the known black matrix by changing the direction of the alignment film on the color filter substrate A method for manufacturing a liquid crystal display panel, an active component substrate, and a color filter substrate.
背景技术Background technique
随着现代视讯技术的进步,液晶显示装置已被大量地使用于手机、笔记型计算机、个人计算机及个人数字助理(PDA)等消费性电子产品的显示屏幕上。液晶显示装置的液晶面板主要是由一数组基板、一液晶层及一彩色滤光基板所组成,其中数组基板是与彩色滤光基板对组,且液晶层是位于其两者之间。上述的彩色滤光基板的形成方式例如是先形成黑矩阵(Black Matrix),之后形成彩色滤光图案,然后再形成电极层或保护层等膜层。With the advancement of modern video technology, liquid crystal display devices have been widely used in display screens of consumer electronic products such as mobile phones, notebook computers, personal computers and personal digital assistants (PDAs). The liquid crystal panel of the liquid crystal display device is mainly composed of an array substrate, a liquid crystal layer and a color filter substrate, wherein the array substrate is paired with the color filter substrate, and the liquid crystal layer is located between them. The above-mentioned color filter substrate is formed by, for example, first forming a black matrix (Black Matrix), then forming a color filter pattern, and then forming film layers such as an electrode layer or a protective layer.
黑矩阵的功能主要是用来遮蔽一些配向异常区或是斜漏光区,且通常是由铬、铅等具高遮光效果的金属材料所组成。然而,随着环保意识的抬头,上述的金属材料已逐渐被禁用,因此,目前主要是以树脂(resin)作为黑矩阵的材质。The function of the black matrix is mainly to cover some alignment abnormal areas or oblique light leakage areas, and is usually composed of metal materials with high light-shielding effects such as chromium and lead. However, with the rising awareness of environmental protection, the above-mentioned metal materials have been gradually banned. Therefore, resin is mainly used as the material of the black matrix at present.
图1为已知的彩色滤光基板的局部示意图。图1中仅绘示出其中一组像素以作说明。请参考图1,已知的彩色滤光基板100包括一透明基板110、一黑矩阵120及多个彩色滤光图案130。黑矩阵120是配置于基板110上,以于基板110上定义出多个次像素区112。彩色滤光图案130包括红色滤光图案132、绿色滤光图案134及蓝色滤光图案136,其分别配置于对应的次像素区112内。一般而言,这些彩色滤光图案130的外围会与黑矩阵120的部分区域相重叠,以降低混色现象。FIG. 1 is a partial schematic diagram of a known color filter substrate. Only one group of pixels is shown in FIG. 1 for illustration. Please refer to FIG. 1 , a known color filter substrate 100 includes a transparent substrate 110 , a black matrix 120 and a plurality of color filter patterns 130 . The black matrix 120 is configured on the substrate 110 to define a plurality of sub-pixel regions 112 on the substrate 110 . The color filter pattern 130 includes a red filter pattern 132 , a green filter pattern 134 and a blue filter pattern 136 , which are respectively disposed in corresponding sub-pixel regions 112 . Generally speaking, the peripheries of the color filter patterns 130 overlap with some areas of the black matrix 120 to reduce color mixing.
由于黑矩阵120的材质为遮光效率较差的黑色树脂,因此黑矩阵120需要较高的膜厚才能发挥遮光的功效,其厚度约为1.1μm-1.4μm。然而,当于透明基板110上形成彩色滤光图案130时,由于黑矩阵120的膜厚太厚,会使得位于此重叠处的彩色滤光图案130较其它位置高出约d的高度,即产生所谓的牛角(tape角)区域130’,也就是在彩色滤光图案130顶面会有中间凹陷边缘尖削的情形。Since the material of the black matrix 120 is black resin with poor light-shielding efficiency, the black matrix 120 needs a relatively high film thickness to exert the light-shielding effect, and its thickness is about 1.1 μm-1.4 μm. However, when the color filter pattern 130 is formed on the transparent substrate 110, because the film thickness of the black matrix 120 is too thick, the color filter pattern 130 at the overlapping position will be higher than other positions by a height of about d, that is, a The so-called tapered corner region 130 ′ is the case where the edge of the central depression is sharpened on the top surface of the color filter pattern 130 .
当进行后段制程将彩色滤光基板100与主动组件基板(未绘示)对组后,由于彩色滤光基板100的表面平坦度太差,容易造成液晶层(未绘示)产生配向异常及漏光的问题。此外,如果形成黑矩阵120的树脂的光学浓度不够时,则显示面板的黑矩阵的额缘部分会发生偏红的状况,如此,将影响整个液晶显示面板的显示品质。After the color filter substrate 100 is combined with the active component substrate (not shown) in the back-end process, because the surface flatness of the color filter substrate 100 is too poor, it is easy to cause abnormal alignment of the liquid crystal layer (not shown) and The problem of light leakage. In addition, if the optical density of the resin forming the black matrix 120 is not enough, the frontal edge of the black matrix of the display panel will appear reddish, which will affect the display quality of the entire liquid crystal display panel.
发明内容Contents of the invention
本发明的目的是提供一种液晶显示面板,以解决已知的液晶显示面板中因彩色滤光基板的表面平坦度不佳,而造成液晶层的配向异常的问题。The object of the present invention is to provide a liquid crystal display panel to solve the problem of abnormal alignment of the liquid crystal layer caused by the poor surface flatness of the color filter substrate in the known liquid crystal display panel.
本发明的另一目的是提供一种液晶显示面板,以提升液晶显示面板的显示品质。Another object of the present invention is to provide a liquid crystal display panel to improve the display quality of the liquid crystal display panel.
本发明的又一目的是提供一种主动组件基板的制作方法,利用此制程所制作的主动组件基板具有较佳的表面平整度。Another object of the present invention is to provide a method for manufacturing an active component substrate. The active component substrate manufactured by this process has better surface flatness.
本发明的再一目的是提供一种彩色滤光基板的制作方法,利用光配向制程或是离子配向制程改变配向膜的部分区域的配向方向,以取代已知的黑矩阵。如此,不会因所选用的黑矩阵的光学浓度值偏低而在其额缘部分发生偏红的状况,以有效地提升液晶显示面板的显示品质。Another object of the present invention is to provide a method for manufacturing a color filter substrate, which uses a photo-alignment process or an ion-alignment process to change the alignment direction of a part of the alignment film to replace the known black matrix. In this way, due to the low optical density of the selected black matrix, reddishness will not occur at the forehead portion, so as to effectively improve the display quality of the liquid crystal display panel.
为达上述或是其它目的,本发明提出一种液晶显示面板,其包括一主动组件基板、一彩色滤光基板、一液晶层、一第一偏光片以及一第二偏光片。彩色滤光基板是配置于主动组件基板上,且彩色滤光基板包括一基板、多数个彩色滤光图案、多个电极图案、一第一平坦层以及一第一配向膜。基板上具有多个呈矩阵型式排列的次像素区。多个彩色滤光图案分别配置于基板的次像素区内。多个电极图案是分别配置于上述的彩色滤光图案上,且这些电极图案是彼此电性连接。第一平坦层是位于基板上,且覆盖这些电极图案。第一配向膜是位于第一平坦层上,其中,第一配向膜对应于这些彩色滤光图案上方的区域具有一第一配向方向,且第一配向膜对应于各彩色滤光图案之间的区域具有一第二配向方向。液晶层是配置于主动组件基板与彩色滤光基板之间。第一偏光片是位于主动组件基板的一外表面;第二偏光片是位于彩色滤光基板的一外表面,其中,第一偏光片与第二偏光片的偏振方向是相互垂直。To achieve the above or other objectives, the present invention provides a liquid crystal display panel, which includes an active component substrate, a color filter substrate, a liquid crystal layer, a first polarizer and a second polarizer. The color filter substrate is configured on the active component substrate, and the color filter substrate includes a substrate, a plurality of color filter patterns, a plurality of electrode patterns, a first flat layer and a first alignment film. There are a plurality of sub-pixel regions arranged in a matrix on the substrate. A plurality of color filter patterns are respectively arranged in the sub-pixel area of the substrate. A plurality of electrode patterns are respectively disposed on the above-mentioned color filter patterns, and these electrode patterns are electrically connected to each other. The first flat layer is located on the substrate and covers the electrode patterns. The first alignment film is located on the first planar layer, wherein the first alignment film has a first alignment direction corresponding to the area above the color filter patterns, and the first alignment film corresponds to the areas between the color filter patterns The region has a second alignment direction. The liquid crystal layer is disposed between the active component substrate and the color filter substrate. The first polarizer is located on an outer surface of the active component substrate; the second polarizer is located on an outer surface of the color filter substrate, wherein the polarization directions of the first polarizer and the second polarizer are perpendicular to each other.
在本发明的一实施例中,第一配向方向是介于2°-6°之间。In an embodiment of the invention, the first alignment direction is between 2°-6°.
在本发明的一实施例中,第二配向方向是介于75°-90°之间。In an embodiment of the invention, the second alignment direction is between 75°-90°.
在本发明的一实施例中,彩色滤光基板还包括一电极层,此电极层是位于第一平坦层与第一配向膜之间。In an embodiment of the present invention, the color filter substrate further includes an electrode layer, and the electrode layer is located between the first flat layer and the first alignment film.
在本发明的一实施例中,主动组件基板包括一基板、多数条资料配线以及多数条扫描配线、多数个像素结构、一第二平坦层以及一第二配向膜。多条数据配线及多条扫描配线是配置于基板上,以定义出多数个像素区域。多个像素结构分别配置于这些像素区域内,以藉由这些扫描配线与资料配线进行驱动,其中各像素结构包括一薄膜晶体管以及一像素电极。薄膜晶体管是电性连接于上述扫描配线其中之一与上述数据配线其中之一。而像素电极是位于薄膜晶体管的上方,并与薄膜晶体管电性连接。第二平坦层是位于基板上,且覆盖这些像素结构上。第二配向膜是位于第二平坦层上,其中,第二配向膜对应于这些像素区域上方的区域具有第一配向方向,且第二配向膜对应于这些数据配线及扫描配线处具有第二配向方向。In an embodiment of the present invention, the active component substrate includes a substrate, a plurality of data wiring lines and a plurality of scanning wiring lines, a plurality of pixel structures, a second flat layer and a second alignment film. A plurality of data lines and a plurality of scan lines are arranged on the substrate to define a plurality of pixel areas. A plurality of pixel structures are respectively arranged in the pixel areas to be driven by the scan wiring and the data wiring, wherein each pixel structure includes a thin film transistor and a pixel electrode. The thin film transistor is electrically connected to one of the scanning lines and one of the data lines. The pixel electrode is located above the thin film transistor and is electrically connected with the thin film transistor. The second flat layer is located on the substrate and covers the pixel structures. The second alignment film is located on the second planar layer, wherein the second alignment film has a first alignment direction corresponding to the area above these pixel regions, and the second alignment film has a first alignment direction corresponding to the data wiring and scanning wiring. Two alignment directions.
在本发明的一实施例中,第一配向方向是介于2°-6°之间。In an embodiment of the invention, the first alignment direction is between 2°-6°.
在本发明的一实施例中,第二配向方向是介于75°-90°之间。In an embodiment of the invention, the second alignment direction is between 75°-90°.
为达上述或是其它目的,本发明另提出一种液晶显示面板,其包括一主动组件基板、一彩色滤光基板、一液晶层、一第一偏光片以及一第二偏光片。主动组件基板包括一基板、多数条资料配线以及多数条扫描配线、多数个像素结构、一平坦层以及一配向膜。这些数据配线与扫描配线是配置于基板上,以定义出多个像素区域。多个像素结构是分别配置于上述像素区域内,以藉由扫描配线与资料配线进行驱动,其中各像素结构包括一薄膜晶体管以及一像素电极。薄膜晶体管是电性连接于上述扫描配线其中之一与上述数据配线其中之一。像素电极是位于薄膜晶体管上方,且与薄膜晶体管电性连接。平坦层是位于基板上,且覆盖上述的像素结构。配向膜是位于平坦层上,其中,配向膜对应于这些像素区域上方的区域具有一第一配向方向,且配向膜对应于这些数据配线及这些扫描配线处具有一第二配向方向。彩色滤光基板是配置于主动组件基板上。液晶层是配置于主动组件基板与彩色滤光基板之间。第一偏光片是位于主动组件基板的一外表面。第二偏光片是位于彩色滤光基板的一外表面,其中第一偏光片与第二偏光片的偏振方向是相互垂直。To achieve the above or other objectives, the present invention further provides a liquid crystal display panel, which includes an active component substrate, a color filter substrate, a liquid crystal layer, a first polarizer and a second polarizer. The active component substrate includes a substrate, a plurality of data lines and a plurality of scanning lines, a plurality of pixel structures, a flat layer and an alignment film. These data wires and scan wires are arranged on the substrate to define a plurality of pixel areas. A plurality of pixel structures are respectively arranged in the above pixel area to be driven by scanning wiring and data wiring, wherein each pixel structure includes a thin film transistor and a pixel electrode. The thin film transistor is electrically connected to one of the scanning lines and one of the data lines. The pixel electrode is located above the thin film transistor and electrically connected with the thin film transistor. The flat layer is located on the substrate and covers the above pixel structure. The alignment film is located on the planar layer, wherein the alignment film has a first alignment direction corresponding to the areas above the pixel regions, and the alignment film has a second alignment direction corresponding to the data lines and the scanning lines. The color filter substrate is configured on the active component substrate. The liquid crystal layer is disposed between the active component substrate and the color filter substrate. The first polarizer is located on an outer surface of the active component substrate. The second polarizer is located on an outer surface of the color filter substrate, wherein the polarization directions of the first polarizer and the second polarizer are perpendicular to each other.
在本发明的一实施例中,第一配向方向是介于2°-6°之间。In an embodiment of the invention, the first alignment direction is between 2°-6°.
在本发明的一实施例中,第二配向方向是介于75°-90°之间。In an embodiment of the invention, the second alignment direction is between 75°-90°.
为达上述或是其它目的,本发明还提出一种主动组件基板的制作方法,其包含下列步骤。首先,于一基板上形成多数条扫描配线、多数条资料配线以及多个像素结构;其中,这些扫描配线与资料配线定义出多数个像素区域,而各像素结构位于其中一像素区域内,且包括一薄膜晶体管以及一像素电极,此薄膜晶体管是电性连接于这些扫描配线其中之一与这些数据配线其中之一,此像素电极与薄膜晶体管电性连接。之后,于基板上形成一平坦层,其中,平坦层覆盖这些像素结构。接下来,于平坦层上形成一配向膜。最后,对配向膜进行一配向制程,使配向膜对应于上述像素区域上方的区域具有一第一配向方向,并使配向膜对应于这些扫描配线及资料配线上方的区域具有一第二配向方向。To achieve the above or other objectives, the present invention also provides a method for manufacturing an active component substrate, which includes the following steps. Firstly, a plurality of scanning wirings, a plurality of data wirings and a plurality of pixel structures are formed on a substrate; these scanning wirings and data wirings define a plurality of pixel areas, and each pixel structure is located in one of the pixel areas and includes a thin film transistor and a pixel electrode, the thin film transistor is electrically connected to one of the scanning lines and one of the data lines, and the pixel electrode is electrically connected to the thin film transistor. Afterwards, a flat layer is formed on the substrate, wherein the flat layer covers the pixel structures. Next, an alignment film is formed on the flat layer. Finally, an alignment process is carried out on the alignment film, so that the area above the pixel region corresponding to the alignment film has a first alignment direction, and the alignment film has a second alignment corresponding to the area above the scanning wiring and the data wiring. direction.
在本发明的一实施例中,第一配向方向是介于2°-6°之间。In an embodiment of the invention, the first alignment direction is between 2°-6°.
在本发明的一实施例中,第二配向方向是介于75°-90°之间。In an embodiment of the invention, the second alignment direction is between 75°-90°.
在本发明的一实施例中,配向制程为一光配向制程。更进一步而言,光配向制程是利用一具有特定波长的偏振光照射配向膜上对应于这些扫描配线与资料配线上方的区域,使配向膜对应于这些扫描配线与资料配线上方的区域具有第二配向方向。In an embodiment of the invention, the alignment process is a photo-alignment process. Furthermore, the photo-alignment process is to use a polarized light with a specific wavelength to irradiate the area on the alignment film corresponding to the scanning wiring and the data wiring, so that the alignment film corresponds to the area above the scanning wiring and the data wiring. The regions have a second alignment direction.
在本发明的一实施例中,配向制程为一离子配向制程。更进一步而言,离子配向制程是利用一离子束打在配向膜上对应于这些扫描配线与资料配线上方的区域,使配向膜对应于这些扫描配线与资料配线上方的区域具有第二配向方向。In an embodiment of the invention, the alignment process is an ion alignment process. Furthermore, the ion alignment process is to use an ion beam to hit the area above the alignment film corresponding to these scanning lines and the data lines, so that the area of the alignment film corresponding to these scanning lines and the area above the data line has the first Two alignment directions.
为达上述或是其它目的,本发明再提出一种彩色滤光基板的制作方法,其包含下列步骤。首先,提供一基板,此基板具有多数个呈矩阵型式排列的次像素区。之后,于基板上形成多数个彩色滤光图案,其中,这些彩色滤光图案是分别配置于基板的次像素区内。接着,于各彩色滤光图案上分别形成一电极图案,而这些电极图案是彼此电性连接。接下来,于基板上形成一平坦层,其中,平坦层是覆盖这些电极图案。接着,于平坦层上形成一配向膜。最后,对上述配向膜进行一配向制程,使配向膜对应于这些彩色滤光图案上方的区域具有一第一配向方向,并使配向膜对应于各彩色滤光图案之间的区域具有一第二配向方向。To achieve the above or other purposes, the present invention further provides a method for manufacturing a color filter substrate, which includes the following steps. First, a substrate is provided, and the substrate has a plurality of sub-pixel regions arranged in a matrix. After that, a plurality of color filter patterns are formed on the substrate, wherein the color filter patterns are respectively arranged in sub-pixel regions of the substrate. Then, an electrode pattern is respectively formed on each color filter pattern, and these electrode patterns are electrically connected to each other. Next, a flat layer is formed on the substrate, wherein the flat layer covers the electrode patterns. Next, an alignment film is formed on the flat layer. Finally, an alignment process is carried out on the above-mentioned alignment film, so that the alignment film has a first alignment direction corresponding to the area above the color filter patterns, and the alignment film has a second alignment direction corresponding to the area between the color filter patterns. alignment direction.
在本发明的一实施例中,第一配向方向是介于2°-6°之间。In an embodiment of the invention, the first alignment direction is between 2°-6°.
在本发明的一实施例中,第二配向方向是介于75°-90°之间。In an embodiment of the invention, the second alignment direction is between 75°-90°.
在本发明的一实施例中,上述的配向制程为一光配向制程。更进一步而言,光配向制程是利用一具有特定波长的偏振光照射配向膜对应于各彩色滤光图案之间的区域,使配向膜对应于各彩色滤光图案之间的区域具有第二配向方向。In an embodiment of the present invention, the above-mentioned alignment process is a photo-alignment process. Furthermore, the photo-alignment process is to use a polarized light with a specific wavelength to irradiate the alignment film corresponding to the area between the color filter patterns, so that the alignment film has a second alignment corresponding to the area between the color filter patterns. direction.
在本发明的一实施例中,上述的配向制程为一离子配向制程。更进一步而言,离子配向制程是利用一离子束打在配向膜对应于各彩色滤光图案之间的区域,使配向膜对应于各彩色滤光图案之间的区域具有第二配向方向。In an embodiment of the present invention, the above alignment process is an ion alignment process. Furthermore, in the ion alignment process, an ion beam is used to hit the area of the alignment film corresponding to each color filter pattern, so that the area of the alignment film corresponding to each color filter pattern has a second alignment direction.
本发明是由改变彩色滤光基板上对应于各彩色滤光图案之间的配向膜的配向方向,以取代已知的黑矩阵,如此,背光模块所提供的光线会经由第一偏光片进入液晶显示面板中,此光线在穿过第一偏光片后即具有一特定的偏振方向。由于液晶层中对应于配向膜的第二区域的液晶分子是呈垂直方向排列,因此,偏振光经过上述呈垂直方向排列的液晶分子时并不会被偏转。然而,当这些光线经过第二偏光片时,由于第二偏光片的偏振方向与第一偏光片的偏振方向是相互垂直,因此,光线无法穿过第二偏光片而呈黑暗状态,以达到与已知的黑矩阵相同的效果。如此,不仅可有效地简化彩色滤光基板的制程,且可避免已知因彩色滤光基板的表面平整度不佳而产生配向异常及漏光的情形,进而提升液晶显示面板的显示品质。The present invention replaces the known black matrix by changing the alignment direction of the alignment film corresponding to each color filter pattern on the color filter substrate, so that the light provided by the backlight module enters the liquid crystal through the first polarizer In the display panel, the light has a specific polarization direction after passing through the first polarizer. Since the liquid crystal molecules in the liquid crystal layer corresponding to the second region of the alignment film are vertically aligned, the polarized light will not be deflected when passing through the vertically aligned liquid crystal molecules. However, when these light rays pass through the second polarizer, since the polarization direction of the second polarizer is perpendicular to the polarization direction of the first polarizer, the light cannot pass through the second polarizer and is in a dark state to achieve the same Known for the same effect as the black matrix. In this way, not only the manufacturing process of the color filter substrate can be effectively simplified, but also the known abnormal alignment and light leakage caused by the poor surface flatness of the color filter substrate can be avoided, thereby improving the display quality of the liquid crystal display panel.
附图说明Description of drawings
为让本发明的上述和其它目的、特征和优点能更明显易懂,下文特举较佳实施例,并配合附图,作详细说明如下,其中:In order to make the above-mentioned and other objects, features and advantages of the present invention more comprehensible, the preferred embodiments are specifically cited below, together with the accompanying drawings, and are described in detail as follows, wherein:
图1为已知的彩色滤光基板的局部示意图。FIG. 1 is a partial schematic diagram of a known color filter substrate.
图2A绘示为本发明的一实施例的一种液晶显示面板的剖面示意图。FIG. 2A is a schematic cross-sectional view of a liquid crystal display panel according to an embodiment of the present invention.
图2B绘示为图2A中所示的主动组件基板的局部俯视示意图。FIG. 2B is a schematic partial top view of the active component substrate shown in FIG. 2A .
图2C绘示为图2A中所示的彩色滤光基板的局部俯视示意图。FIG. 2C is a schematic partial top view of the color filter substrate shown in FIG. 2A .
图3绘示为光线由第一偏光片进入液晶显示面板并由第二偏光片出射的示意图。FIG. 3 is a schematic diagram of light entering the liquid crystal display panel from the first polarizer and exiting from the second polarizer.
图4A-4D绘示为本发明的一主动组件基板的制作流程剖面图。4A-4D are cross-sectional views showing the fabrication process of an active component substrate of the present invention.
图5绘示为在图4A所示的基板上形成像素结构的俯视示意图。FIG. 5 is a schematic top view of forming a pixel structure on the substrate shown in FIG. 4A .
图6A-6E绘示为本发明的一彩色滤光基板的制造流程剖面图。6A-6E are cross-sectional views showing a manufacturing process of a color filter substrate of the present invention.
图7绘示为图6A中所示的基板的俯视示意图。FIG. 7 is a schematic top view of the substrate shown in FIG. 6A .
具体实施方式Detailed ways
图2A绘示为本发明的一实施例的一种液晶显示面板的剖面示意图;图2B绘示为图2A中所示的主动组件基板的局部俯视示意图;图2C绘示为图2A中所示的彩色滤光基板的局部俯视示意图。在此实施例中,主动组件基板的各像素中所包含的薄膜晶体管是以底栅极型(bottom gate)薄膜晶体管为例以作说明。然而,除了底栅极型薄膜晶体管之外,亦可采用顶栅极型薄膜晶体管、非晶硅薄膜晶体管、多晶硅薄膜晶体管或是其它型式的薄膜晶体管作为各像素中的薄膜晶体管,本发明对于主动组件基板的薄膜晶体管的型态不作任何限制。2A is a schematic cross-sectional view of a liquid crystal display panel according to an embodiment of the present invention; FIG. 2B is a partial top view of the active component substrate shown in FIG. 2A ; A partial top view of the color filter substrate. In this embodiment, the TFTs included in each pixel of the active component substrate are bottom gate TFTs as an example for illustration. However, in addition to bottom-gate TFTs, top-gate TFTs, amorphous silicon TFTs, polysilicon TFTs, or other types of TFTs can also be used as the TFTs in each pixel. The type of the thin film transistor of the component substrate is not limited in any way.
首先,请参考图2A,本发明的液晶显示面板200主要是由一主动组件基板210、一彩色滤光基板220、一液晶层230、一第一偏光片240以及一第二偏光片250所组成。液晶层230是配置于主动组件基板210与彩色滤光基板220之间。此外,第一偏光片240与第二偏光片250分别配置于主动组件基板210的外表面210a及彩色滤光基板220的外表面220a上。First, please refer to FIG. 2A, the liquid
请同时参考图2A及2B,主动组件基板210包含一基板211、多数条扫描配线212、多数条资料配线213、多数个像素结构、一平坦层216以及一配向膜217。如图2B所示,扫描配线212与数据配线213是相互垂直地配置于基板211上,以定义出多个呈矩阵型式排列的像素区域P。多个像素结构是分别配置于像素区域P内,以由扫描配线212与数据配线213进行驱动。其中,各像素结构包括一薄膜晶体管214以及一像素电极215。薄膜晶体管214是电性连接于相对应的扫描配线212与数据配线213;而像素电极215是位于薄膜晶体管214的上方,且与薄膜晶体管214电性连接。Please refer to FIGS. 2A and 2B at the same time. The
请参考图2A,更进一步而言,薄膜晶体管214是由一栅极)Gate)214a、一信道层(Channel)214b、一源极214c(Source)与一漏极(Drain)214d所构成。其中,栅极214a是与图2B中所示的扫描配线212电性连接,用以控制信道层214b的开关状态,而源极214c则是与图2B中所示的资料配线213电性连接,当栅极214a电性连接至一适当的电压时,信道层214b即呈导通的状态,此时关于画面显示的资料便会依序经由数据配线213、源极214c、信道层214b、漏极214d而写入像素电极215中。Please refer to FIG. 2A , further, the
如图2A所示,平坦层216是位于基板211上,且覆盖所有的薄膜晶体管214与像素电极215,如此,主动组件基板210可具有较佳的表面平整度。在本发明的一实施例中,平坦层216的材料包含树脂材料。As shown in FIG. 2A , the
配向膜(alignment layer)217是位于平坦层216上,以对液晶层230进行配向。本发明是由一光配向(PhotoAlignment)或是离子配向制程,利用具有特定波长的偏振光或是离子束打在配向膜217的部分区域,使配向膜217在对应于图2B中所示像素区域P上方的第一区域217a具有一第一配向方向,并使其在对应于这些扫描配线212与资料配线213上方的第二区域217b具有一第二配向方向。此第一配向方向是介于2°-6°之间,而第二配向方向是介于75°-90°之间。在本发明的一实施例中,配向膜217的材料可为聚醯亚胺(polyimide)。An alignment layer 217 is located on the
请同时参考图2A与图2C,彩色滤光基板220是位于主动组件基板210上,且其包括一基板221、多数个彩色滤光图案222、多数个电极图案223、一平坦层224以及一配向膜225。如图2C所示,基板221上具有多个呈矩阵型式排列的次像素区P’,每一个次像素区P’分别对应到主动组件基板210的其中一像素区域P。多个彩色滤光图案222分别配置于基板221的次像素区P’内。这些彩色滤光图案222可包含红色滤光图案、绿色滤光图案及蓝色滤光图案。Please refer to FIG. 2A and FIG. 2C at the same time, the
多个电极图案223分别位于彩色滤光图案222上。这些电极图案223是彼此电性连接,并由薄膜晶体管214作为驱动组件,以驱动电极图案223与像素电极215之间的液晶扭转。此电极图案223的材料可为铟锡氧化物(indiumtin oxide)或是铟锌氧化物(indium zinc oxide)。A plurality of
平坦层224是位于基板上221,且覆盖上述彩色滤光图案222,使其具有较佳的表面平整度。此平坦层224的材料可为树脂。配向膜225是位于平坦层224上,以对液晶层230进行配向。本发明同样是利用光配向或是离子配向制程,用具有特定波长的偏振光或是离子束打在配向膜225的部分区域,使配向膜225对应于彩色滤光图案222上方的第一区域225a具有一第一配向方向,并使其对应于各彩色滤光图案222之间的第二区域225b具有一第二配向方向。此第一配向方向是介于2°-6°之间,而第二配向方向是介于75°-90°之间。在本发明的一实施例中,配向膜225的材料可为聚醯亚胺(polyimide)。而位于配向膜217的第二区域217b与配向膜225的第二区域225b之间的液晶分子会受到配向膜的影响而呈垂直方向排列。The
第一偏光片240与第二偏光片250分别配置于主动组件基板210的外表面210a及彩色滤光基板220的外表面220a上,且二者的偏振方向是相互垂直。The
请参考图3,背光模块(图中未示)所提供的光线会经由第一偏光片240进入液晶显示面板200中,此光线在穿过第一偏光片240后即具有一特定的偏振方向。由于位于配向膜217的第二区域217b与配向膜225的第二区域225b之间的液晶分子是呈垂直方向排列,因此,偏振光经过上述呈垂直方向排列的液晶分子时并不会被偏转。然而,当这些光线经过第二偏光片250时,由于第二偏光片250的偏振方向与第一偏光片240的偏振方向是相互垂直,因此,光线无法穿过第二偏光片250而呈黑暗状态。如此,即可达到与已知的黑矩阵相同的效果,但却可完全避免漏光的情形发生。Please refer to FIG. 3 , the light provided by the backlight module (not shown in the figure) enters the liquid
在以上实施例中,本发明是对主动组件基板与彩色滤光基板的配向膜进行一配向制程,使其具有不同的配向方向,进而达到与已知的黑矩阵相同的效果(使光线无法穿透)。然而,使用者可仅于主动组件基板上配置具有不同配向方向的配向膜,或是仅于彩色滤光基板上配置具有不同配向方向的配向膜,本发明对此不作任何限制。In the above embodiments, the present invention performs an alignment process on the alignment films of the active component substrate and the color filter substrate, so that they have different alignment directions, thereby achieving the same effect as the known black matrix (making it impossible for light to pass through) through). However, users can only configure alignment films with different alignment directions on the active component substrate, or only configure alignment films with different alignment directions on the color filter substrate, which is not limited by the present invention.
以下,将搭配图标分别说明上述液晶显示面板中其主动组件基板与彩色滤光基板的制作方法。Hereinafter, the manufacturing methods of the active component substrate and the color filter substrate in the above-mentioned liquid crystal display panel will be respectively described with reference to figures.
图4A-4D绘示为本发明的一主动组件基板的制作流程剖面图。图5绘示为在图4A所示的基板上形成像素结构的俯视示意图。首先,请同时参考图4A及图5,于一基板311上形成多数条扫描配线312、多数条资料配线313及多数个像素结构314,其中,每一个像素结构314分别包含一薄膜晶体管314a以及一像素电极314b。如图5所示,这些扫描配线312与数据配线313是相互垂直,以定义出多数个呈矩阵型式排列的像素区域P。每一像素结构314是位于其中一像素区域P内,各薄膜晶体管314a是电性连接于其中一条扫描配线312与其中一条数据配线313,此外,各像素电极314b是电性连接于相对应的薄膜晶体管314a。4A-4D are cross-sectional views showing the fabrication process of an active component substrate of the present invention. FIG. 5 is a schematic top view of forming a pixel structure on the substrate shown in FIG. 4A . First, please refer to FIG. 4A and FIG. 5 at the same time, a plurality of
接下来,请参考图4B,于基板311上形成一平坦层316,以覆盖上述的像素结构314(即薄膜晶体管314a与像素电极314b),使整个基板311具有较佳的表面平坦度。之后,请参考图4C,于平坦层316上形成一配向膜317。最后,请参考图4D,搭配一屏蔽(mask)500以对配向膜317进行一配向制程400,使配向膜317中对应于图5所示的像素区域P上方的第一区域317a具有一第一配向方向,并使配向膜317中对应于扫描配线312及资料配线313上方的第二区域317b具有一第二配向方向。此第一配向方向是介于2°-6°之间,而第二配向方向是介于75°-90°之间。如此,便完成图2A中所示的主动组件基板210的制作。Next, please refer to FIG. 4B , a
在本发明的一实施例中,上述的配向制程可为一光配向(Photo Alignment)制程。此光配向制程是利用一具有特定波长的偏振光照射配向膜317上对应于图5中所示的扫描配线312与资料配线313上方的第二区域317b,此偏振光的波长需搭配配向膜317的材质,以使配向膜317对应于扫描配线312与资料配线313上方的第二区域317b具有第二配向方向。此外,上述的配向制程亦可为一离子配向(Ion Alignment)制程,此离子配向制程是利用一离子束(ion beam)打在配向膜317对应于扫描配线312与资料配线313上方的第二区域317b,使配向膜317对应于扫描配线312与资料配线313上方的区域具有第二配向方向。In an embodiment of the present invention, the above alignment process may be a photo alignment (Photo Alignment) process. This optical alignment process uses a polarized light with a specific wavelength to irradiate the
图6A-6E绘示为本发明的一彩色滤光基板的制造流程剖面图。图7绘示为图6A中所示的基板的俯视示意图。首先,请参考图6A及图7,提供一基板321,此基板321具有多个呈矩阵型式排列的次像素区P’。之后,请参考图6B,于基板321上形成多数个彩色滤光图案322,并于彩色滤光图案322上分别形成一电极图案323。这些彩色滤光图案322分别配置于基板321的次像素区P’内。在本发明的一实施例中,这些彩色滤光图案322包含红色滤光图案、蓝色滤光图案以及绿色滤光图案。此外,位于彩色滤光图案322上的电极图案323是彼此电性连接。6A-6E are cross-sectional views showing a manufacturing process of a color filter substrate of the present invention. FIG. 7 is a schematic top view of the substrate shown in FIG. 6A . First, referring to FIG. 6A and FIG. 7 , a
接下来,请参考图6C,于基板321上形成一平坦层324,以覆盖这些彩色滤光图案322。接着,请参考图6D,于平坦层324上形成一配向膜325,此配向膜325的材料可为聚醯亚胺。Next, referring to FIG. 6C , a
最后,请参考图6E,搭配一屏蔽500’以对配向膜325进行一配向制程400’,使配向膜325对应于这些彩色滤光图案322上方的第一区域325a具有一第一配向方向,并使配向膜325对应于各彩色滤光图案322之间的第二区域325b具有一第二配向方向。此第一配向方向是介于2°-6°之间,而第二配向方向是介于75°-90°之间。至此,即完成图2A中所示的彩色滤光基板220的制作。此配向制程400’可为上述的光配向制程或是离子配向制程,所以,在此不再多作赘述。Finally, referring to FIG. 6E , an
综上所述,本发明的彩色滤光基板是先于基板上形成多个彩色滤光图案及多个位于彩色滤光图案上的电极图案,之后,于基板上形成一平坦层,使其具有较佳的表面平坦度。最后,于平坦层上形成一配向膜,并对此配向膜进行一配向制程,使配向膜上对应于各彩色滤光图案之间的第二区域具有一第二配向角度(介于75°-90°之间),此第二区域即为已知的彩色滤光基板中黑矩阵所在的处。如此,对应于配向膜的第二区域上的液晶分子即可呈垂直方向排列。To sum up, in the color filter substrate of the present invention, a plurality of color filter patterns and a plurality of electrode patterns located on the color filter patterns are first formed on the substrate, and then a flat layer is formed on the substrate so that it has Better surface flatness. Finally, an alignment film is formed on the flat layer, and an alignment process is performed on the alignment film, so that the second region corresponding to each color filter pattern on the alignment film has a second alignment angle (between 75°- 90°), this second area is where the black matrix in the known color filter substrate is located. In this way, the liquid crystal molecules on the second region corresponding to the alignment film can be arranged in a vertical direction.
本发明的液晶显示面板是在主动组件基板及彩色滤光基板的外表面配置上两片偏振方向相垂直的第一偏光片及第二偏光片,即可使光线无法从第二区域出射,以此取代已知由树脂材料形成的黑矩阵。如此,不仅可有效地简化彩色滤光基板的制作过程,且亦可改善传统的彩色滤光基板因其表面平坦度太差而造成的配向异常及漏光的问题。In the liquid crystal display panel of the present invention, two first polarizers and second polarizers whose polarization directions are perpendicular to each other are arranged on the outer surfaces of the active component substrate and the color filter substrate, so that the light cannot be emitted from the second area, so that This replaces the known black matrix formed of resin material. In this way, not only can the manufacturing process of the color filter substrate be effectively simplified, but also the problems of abnormal alignment and light leakage caused by the poor surface flatness of the traditional color filter substrate can be improved.
此外,由于本发明的彩色滤光基板是利用配向膜的配向方向不同,而取代已知的黑矩阵。因此,不会产生因黑矩阵的光学浓度值偏低而在其额缘部分发生偏红的状况,如此可有效地提升液晶显示面板的显示品质。In addition, since the color filter substrate of the present invention utilizes different alignment directions of the alignment film, it replaces the known black matrix. Therefore, there will be no reddish appearance at the forehead portion of the black matrix due to the low optical density value of the black matrix, which can effectively improve the display quality of the liquid crystal display panel.
再者,本发明亦可于主动组件基板上的配向膜上进行配向制程,使其在对应于扫描配线与数据配线的处具有不同的配向方向,进而使对应于此处的液晶分子同样达到垂直排列的效果。Furthermore, the present invention can also carry out an alignment process on the alignment film on the active component substrate, so that the positions corresponding to the scanning wiring and the data wiring have different alignment directions, so that the liquid crystal molecules corresponding to these positions are the same To achieve the effect of vertical arrangement.
虽然本发明已以较佳实施例揭露如上,然其并非用以限定本发明,任何熟习此技术者,在不脱离本发明的精神和范围内,当可作些许的更动与润饰,因此本发明的保护范围当视后附的申请专利范围所界定的为准。Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Anyone skilled in the art can make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, this The scope of protection of the invention shall be defined by the scope of the appended patent application.
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| CN101728398A (en) * | 2008-10-28 | 2010-06-09 | 奇美电子股份有限公司 | Thin film transistor substrate, display panel, display device and manufacturing method thereof |
| CN102749780A (en) * | 2012-07-27 | 2012-10-24 | 南京中电熊猫液晶显示科技有限公司 | Liquid crystal display panel |
| US8576364B2 (en) | 2007-12-21 | 2013-11-05 | Au Optronics Corp. | Method for forming multiple alignment films on a substrate and pixel structure of a liquid crystal display |
| CN104635374A (en) * | 2015-02-13 | 2015-05-20 | 上海天马微电子有限公司 | Display panel, display device and manufacturing method thereof |
| WO2016078239A1 (en) * | 2014-11-21 | 2016-05-26 | 深圳市华星光电技术有限公司 | Vertically-aligned liquid crystal display |
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| CN109597511A (en) * | 2017-09-30 | 2019-04-09 | 昆山国显光电有限公司 | Touch panel and display screen and electronic product |
| CN110308593A (en) * | 2019-06-12 | 2019-10-08 | 惠科股份有限公司 | Method for manufacturing alignment film |
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| CN1700077A (en) * | 2004-05-22 | 2005-11-23 | 鸿富锦精密工业(深圳)有限公司 | Liquid crystal display equipment |
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| US8576364B2 (en) | 2007-12-21 | 2013-11-05 | Au Optronics Corp. | Method for forming multiple alignment films on a substrate and pixel structure of a liquid crystal display |
| CN101728398A (en) * | 2008-10-28 | 2010-06-09 | 奇美电子股份有限公司 | Thin film transistor substrate, display panel, display device and manufacturing method thereof |
| CN102749780A (en) * | 2012-07-27 | 2012-10-24 | 南京中电熊猫液晶显示科技有限公司 | Liquid crystal display panel |
| CN102749780B (en) * | 2012-07-27 | 2015-02-04 | 南京中电熊猫液晶显示科技有限公司 | Liquid crystal display panel |
| WO2016078239A1 (en) * | 2014-11-21 | 2016-05-26 | 深圳市华星光电技术有限公司 | Vertically-aligned liquid crystal display |
| US9658485B2 (en) | 2015-02-13 | 2017-05-23 | Shanghai Tianma Micro-electronics Co., Ltd. | Display panel, a display device, and fabrication method thereof |
| CN104635374A (en) * | 2015-02-13 | 2015-05-20 | 上海天马微电子有限公司 | Display panel, display device and manufacturing method thereof |
| CN104635374B (en) * | 2015-02-13 | 2017-09-01 | 上海天马微电子有限公司 | Display panel, display device and manufacturing method thereof |
| WO2019037219A1 (en) * | 2017-08-25 | 2019-02-28 | 武汉华星光电技术有限公司 | Cf substrate and method for manufacturing same, and method for measuring alignment angle of alignment film |
| CN109597511A (en) * | 2017-09-30 | 2019-04-09 | 昆山国显光电有限公司 | Touch panel and display screen and electronic product |
| CN108333838A (en) * | 2018-03-06 | 2018-07-27 | 京东方科技集团股份有限公司 | Display base plate, display panel and display device |
| CN110308593A (en) * | 2019-06-12 | 2019-10-08 | 惠科股份有限公司 | Method for manufacturing alignment film |
| CN110308593B (en) * | 2019-06-12 | 2024-02-27 | 惠科股份有限公司 | Manufacturing method of alignment film |
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