CN105158994A - 像素单元及阵列基板 - Google Patents

像素单元及阵列基板 Download PDF

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CN105158994A
CN105158994A CN201510640384.8A CN201510640384A CN105158994A CN 105158994 A CN105158994 A CN 105158994A CN 201510640384 A CN201510640384 A CN 201510640384A CN 105158994 A CN105158994 A CN 105158994A
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pixel region
rake
pixel
connecting portion
electrode
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CN105158994B (zh
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孟林
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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 US14/907,820 priority patent/US9766510B2/en
Priority to PCT/CN2015/098009 priority patent/WO2017054329A1/zh
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    • 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
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Abstract

本发明提供一种像素单元及阵列基板，所述像素电极具有四个分支部，从而将像素区域分为四个显示畴区，有利于显示产品大视角色偏的改善，同时该像素电极的结构简单，制作工艺简单，有利于制造大尺寸、广视角显示产品。本发明提供的一种阵列基板，在水平方向上由数个像素单元组成，所述像素单元中的像素电极具有四个分支部，从而将像素区域分为四个显示畴区，有利于显示产品大视角色偏的改善，同时该像素电极的结构简单，制作工艺简单，有利于制造大尺寸、广视角显示产品。

Description

像素单元及阵列基板
技术领域
本发明涉及显示技术领域，尤其涉及一种像素单元及阵列基板。
背景技术
液晶显示器(LiquidCrystalDisplay，LCD)具有亮度好、对比度高、层次感强、颜色鲜艳、机身薄、省电、无辐射等众多优点，得到了广泛的应用。如：液晶电视、移动电话、个人数字助理(PDA)、数字相机、计算机屏幕或笔记本电脑屏幕等，在平板显示领域中占主导地位。
液晶显示面板的通常是由一彩膜基板(ColorFilterSubstrate，CFSubstrate)、一薄膜晶体管阵列基板(ThinFilmTransistorArraySubstrate，TFTArraySubstrate)以及一配置于两基板间的液晶层(LiquidCrystalLayer)所构成，其工作原理是通过在两片玻璃基板上施加驱动电压来控制液晶层的液晶分子的旋转，将背光模组的光线折射出来产生画面。按照液晶的取向方式不同，目前主流市场上的液晶显示面板可以分为以下几种类型：垂直配向(VerticalAlignment，VA)型、扭曲向列(TwistedNematic，TN)或超扭曲向列(SuperTwistedNematic，STN)型、平面转换(In-PlaneSwitching，IPS)型、及边缘场开关(FringeFieldSwitching，FFS)型。
在FFS模式中，通过施加基本平行于基板的电场，使液晶分子在平行于基板的平面内转动。
为了改善液晶显示面板的色偏问题，通常会采取多畴技术(multi-domain)，即将一个子像素划分成多个区域，并使每个区域中的液晶在施加电压后倒伏向不同的方向，从而使各个方向看到的效果趋于平均，一致。
实现多畴技术的方法有多种，现有的FFS型液晶显示面板的像素单元一般具有两个显示畴区，如图1所示，为现有的一种像素单元的结构示意图，该像素单元包括一像素电极140、设于像素电极140左侧的数据线130、以及位于所述像素电极140上方的栅极线110，其中，所述像素电极140包括以一定角度相连接的两个分支电极141，其中一个分支电极141的末端经由一过孔150与TFT的漏极相连；该种结构的像素单元中，设于像素电极140左侧的数据线130一般包括分别与两个分支电极141相平行的两个倾斜部131，该两个倾斜部131的连接处形成一尖角132，在实际生产过程中，液晶显示面板经常会被放置在机台上运输，此时，机台上支撑液晶显示面板的支撑销会与液晶显示面板之间摩擦产生静电，该静电容易传导至数据线130的尖角132处对液晶显示面板的线路造成静电击伤，从而对液晶显示面板造成破坏。
发明内容
本发明的目的在于提供一种像素单元，能够改善显示产品大视角的色偏问题，简化制程工艺，提高大尺寸、广视角显示装置的品质。
本发明的目的在于提供一种阵列基板，能够改善显示产品大视角的色偏问题，简化制程工艺，提高大尺寸、广视角显示装置的品质。
为实现上述目的，本发明提供一种像素单元，包括具有相对设置的两长边与分别连接于两长边两端的两短边的一像素区域、设于该像素区域中心的一像素电极、沿所述像素区域的一长边设置的数据线、以及垂直于该数据线且穿过该像素电极的栅极线；
所述像素电极包括位于中心的连接部、以及从该连接部向像素区域四周延伸的四个分支部，所述四个分支部沿穿过所述连接部且平行于像素区域的长边与短边的直线上下、左右对称，所述分支部从连接部起始后沿着平行于像素区域的长边的方向向像素区域的短边延伸，并且在接近像素区域的短边时向像素区域的长边延伸；其中，每个分支部均由起点和终点均位于连接部上的一条状电极围成。
所述条状电极为圆滑的曲线。
所述条状电极由数条直线段组成，所述数条直线段包括从连接部起始的第一倾斜部、与该第一倾斜部末端相连接且朝向像素区域的短边延伸的第一竖直部、与该第一竖直部末端相连接且朝向像素区域的长边延伸的第二倾斜部、与该第二倾斜部末端相连接且平行于像素区域的短边的第一水平部、与该第一水平部末端相连接且平行于所述第二倾斜部的第三倾斜部、与该第三倾斜部末端相连接且平行于所述第一竖直部的第二竖直部、从该第二竖直部连接至所述连接部的第四倾斜部。
本发明还提供一种阵列基板，在垂直方向上包括一衬底基板、设于该衬底基板上的遮光层、设于所述遮光层与衬底基板上的缓冲层、设于所述缓冲层上的多晶硅层、设于所述多晶硅层上的栅极绝缘层、设于所述栅极绝缘层上的栅极与栅极线、设于所述栅极与栅极绝缘层上的层间绝缘层、设于所述层间绝缘层上的源极、漏极与数据线、设于所述源极、漏极、及层间绝缘层上的平坦层、设于所述平坦层上的公共电极、设于所述公共电极上的钝化层、及设于所述钝化层上的像素电极；
所述阵列基板在水平方向上划分为数个像素区域，每个像素区域中设有一像素电极，所述像素区域具有相对设置的两长边与分别连接于两长边两端的两短边，所述数据线在水平方向上沿所述像素区域的一长边设置，所述栅极线在水平方向上垂直于该数据线且穿过该像素电极；
所述像素电极包括位于中心的连接部、以及从该连接部向像素区域四周延伸的四个分支部，所述四个分支部沿穿过所述连接部且平行于像素区域的长边与短边的直线上下、左右对称，所述分支部从连接部起始后沿着平行于像素区域的长边的方向向像素区域的短边延伸，并且在接近像素区域的短边时向像素区域的长边延伸；其中，每个分支部均由起点和终点均位于连接部上的一条状电极围成。
所述条状电极为圆滑的曲线。
所述条状电极由数条直线段组成，所述数条直线段包括从连接部起始的第一倾斜部、与该第一倾斜部末端相连接且朝向像素区域的短边延伸的第一竖直部、与该第一竖直部末端相连接且朝向像素区域的长边延伸的第二倾斜部、与该第二倾斜部末端相连接且平行于像素区域的短边的第一水平部、与该第一水平部末端相连接且平行于所述第二倾斜部的第三倾斜部、与该第三倾斜部末端相连接且平行于所述第一竖直部的第二竖直部、从该第二竖直部连接至所述连接部的第四倾斜部。
所述层间绝缘层与栅极绝缘层上对应所述多晶硅层的两端设有第一过孔，所述源极、漏极分别经由第一过孔与多晶硅层相接触。
所述平坦层上对应所述漏极的上方设有第二过孔，所述像素电极的连接部位于该第二过孔内并且与位于第二过孔下方的漏极相连接。
所述阵列基板应用于FFS型液晶显示面板中。
所述公共电极与像素电极的材料均为ITO。
本发明的有益效果：本发明提供一种像素单元及阵列基板，所述像素电极具有四个分支部，从而将像素区域分为四个显示畴区，有利于显示产品大视角色偏的改善，同时该像素电极的结构简单，制作工艺简单，有利于制造大尺寸、广视角显示产品。本发明提供的一种阵列基板，在水平方向上由数个像素单元组成，所述像素单元中的像素电极具有四个分支部，从而将像素区域分为四个显示畴区，有利于显示产品大视角色偏的改善，同时该像素电极的结构简单，制作工艺简单，有利于制造大尺寸、广视角显示产品。
为了能更进一步了解本发明的特征以及技术内容，请参阅以下有关本发明的详细说明与附图，然而附图仅提供参考与说明用，并非用来对本发明加以限制。
附图说明
下面结合附图，通过对本发明的具体实施方式详细描述，将使本发明的技术方案及其它有益效果显而易见。
附图中，
图1为现有的一种像素单元的结构示意图；
图2为本发明的像素单元第一实施例的结构示意图；
图3为本发明的像素单元第二实施例的结构示意图；
图4为本发明的阵列基板的剖面结构示意图。
具体实施方式
为更进一步阐述本发明所采取的技术手段及其效果，以下结合本发明的优选实施例及其附图进行详细描述。
请参阅图2-3，本发明首先提供一种像素单元，其包括由相对设置的两长边21与相对设置的两短边22围成的一像素区域20、设于该像素区域20中心的一像素电极12、沿所述像素区域20的一长边21设置的数据线13、以及垂直于该数据线13且穿过该像素电极12的栅极线14；
所述像素电极12包括位于中心的连接部121、以及从该连接部121向像素区域20四周延伸的四个分支部122，所述四个分支部122沿穿过所述连接部121且平行于像素区域20的长边21与短边22的直线上下、左右对称，所述分支部122从连接部121起始后沿着平行于像素区域20的长边21的方向向像素区域20的短边22延伸，并且在接近像素区域20的短边22时向像素区域20的长边21延伸；其中，每个分支部122均由起点和终点均位于连接部121上的一条状电极123围成。
如图2所示，为本发明像素单元的第一实施例，该实施例中，所述条状电极123为圆滑的曲线。
如图3所示，为本发明像素单元的第二实施例，该实施例中，所述条状电极123由数条直线段组成，所述数条直线段包括从连接部121起始的第一倾斜部1230、与该第一倾斜部1230末端相连接且朝向像素区域20的短边22延伸的第一竖直部1231、与该第一竖直部1231末端相连接且朝向像素区域20的长边21延伸的第二倾斜部1232、与该第二倾斜部1232末端相连接且平行于像素区域20的短边22的第一水平部1233、与该第一水平部1233末端相连接且平行于所述第二倾斜部1232的第三倾斜部1234、与该第三倾斜部1234末端相连接且平行于所述第一竖直部1231的第二竖直部1235、从该第二竖直部1235连接至所述连接部121的第四倾斜部1236。
本发明提供的一种像素单元，像素电极具有四个分支部，从而将像素区域分为四个显示畴区，有利于显示产品大视角色偏的改善，同时该像素电极的结构简单，制作工艺简单，有利于制造大尺寸、广视角显示产品。
请参阅图4，同时参阅图2-3，本发明还提供一种包含上述像素单元的阵列基板，所述阵列基板在垂直方向上包括一衬底基板1、设于该衬底基板1上的遮光层2、设于所述遮光层2与衬底基板1上的缓冲层3、设于所述缓冲层3上的多晶硅层4、设于所述多晶硅层4上的栅极绝缘层5、设于所述栅极绝缘层5上的栅极6与栅极线14、设于所述栅极6与栅极绝缘层5上的层间绝缘层7、设于所述层间绝缘层7上的源极81、漏极82与数据线13、设于所述源极81、漏极82、及层间绝缘层7上的平坦层9、设于所述平坦层9上的公共电极10、设于所述公共电极10上的钝化层11、及设于所述钝化层11上的像素电极12；
如图2-3所示，所述阵列基板在水平方向上划分为数个像素区域20，每个像素区域20中设有一像素电极12，所述像素区域20由相对设置的两长边21与相对设置的两短边22围成，所述数据线13在水平方向上沿所述像素区域20的一长边21设置，所述栅极线14在水平方向上垂直于该数据线13且穿过该像素电极12；
所述像素电极12包括位于中心的连接部121、以及从该连接部121向像素区域20四周延伸的四个分支部122，所述四个分支部122沿穿过所述连接部121且平行于像素区域20的长边21与短边22的直线上下、左右对称，所述分支部122从连接部121起始后沿着平行于像素区域20的长边21的方向向像素区域20的短边22延伸，并且在接近像素区域20的短边22时向像素区域20的长边21延伸；其中，每个分支部122均由起点和终点均位于连接部121上的一条状电极123围成。
如图2所示，为本发明像素单元的第一实施例，该实施例中，所述条状电极123为圆滑的曲线。
如图3所示，为本发明像素单元的第二实施例，该实施例中，所述条状电极123由数条直线段组成，所述数条直线段包括从连接部121起始的第一倾斜部1230、与该第一倾斜部1230末端相连接且朝向像素区域20的短边22延伸的第一竖直部1231、与该第一竖直部1231末端相连接且朝向像素区域20的长边21延伸的第二倾斜部1232、与该第二倾斜部1232末端相连接且平行于像素区域20的短边22的第一水平部1233、与该第一水平部1233末端相连接且平行于所述第二倾斜部1232的第三倾斜部1234、与该第三倾斜部1234末端相连接且平行于所述第一竖直部1231的第二竖直部1235、从该第二竖直部1235连接至所述连接部121的第四倾斜部1236。
具体的，所述层间绝缘层7与栅极绝缘层5上对应所述多晶硅层4的两端设有第一过孔71，所述源极81、漏极82分别经由第一过孔71与多晶硅层4相接触。
具体的，所述平坦层9上对应所述漏极82的上方设有第二过孔92，所述像素电极12的连接部121位于该第二过孔92内并且与位于第二过孔92下方的漏极82相连接。
具体的，本发明的阵列基板应用于FFS型液晶显示面板中。
具体的，所述衬底基板1为玻璃基板。
所述遮光层2的材料为金属。
所述缓冲层3、栅极绝缘层5、层间绝缘层7的材料可以是氧化硅(SiOx)、氮化硅(SiNx)、或二者的组合。
所述栅极6、栅极线14、源极81、漏极82、数据线13的材料可以是钼(Mo)、钛(Ti)、铝(Al)、铜(Cu)中的一种或多种的堆栈组合。
所述平坦层9的材料为有机材料。
所述公共电极10与像素电极12的材料均为ITO(氧化铟锡)。
本发明提供的一种阵列基板，在水平方向上由数个像素单元组成，所述像素单元中的像素电极具有四个分支部，从而将像素区域分为四个显示畴区，有利于显示产品大视角色偏的改善，同时该像素电极的结构简单，制作工艺简单，有利于制造大尺寸、广视角显示产品。
综上所述，本发明提供一种像素单元及阵列基板，所述像素电极具有四个分支部，从而将像素区域分为四个显示畴区，有利于显示产品大视角色偏的改善，同时该像素电极的结构简单，制作工艺简单，有利于制造大尺寸、广视角显示产品。本发明提供的一种阵列基板，在水平方向上由数个像素单元组成，所述像素单元中的像素电极具有四个分支部，从而将像素区域分为四个显示畴区，有利于显示产品大视角色偏的改善，同时该像素电极的结构简单，制作工艺简单，有利于制造大尺寸、广视角显示产品。
以上所述，对于本领域的普通技术人员来说，可以根据本发明的技术方案和技术构思作出其他各种相应的改变和变形，而所有这些改变和变形都应属于本发明权利要求的保护范围。

Claims (10)

1.一种像素单元，其特征在于，包括具有相对设置的两长边(21)与分别连接于两长边(21)两端的两短边(22)的一像素区域(20)、设于该像素区域(20)中心的一像素电极(12)、沿所述像素区域(20)的一长边(21)设置的数据线(13)、以及垂直于该数据线(13)且穿过该像素电极(12)的栅极线(14)；
所述像素电极(12)包括位于中心的连接部(121)、以及从该连接部(121)向像素区域(10)四周延伸的四个分支部(122)，所述四个分支部(122)沿穿过所述连接部(121)且平行于像素区域(20)的长边(21)与短边(22)的直线上下、左右对称，所述分支部(122)从连接部(121)起始后沿着平行于像素区域(20)的长边(21)的方向向像素区域(20)的短边(22)延伸，并且在接近像素区域(20)的短边(22)时向像素区域(20)的长边(21)延伸；其中，每个分支部(122)均由起点和终点均位于连接部(121)上的一条状电极(123)围成。
2.如权利要求1所述的像素单元，其特征在于，所述条状电极(123)为圆滑的曲线。
3.如权利要求1所述的像素单元，其特征在于，所述条状电极(123)由数条直线段组成，所述数条直线段包括从连接部(121)起始的第一倾斜部(1230)、与该第一倾斜部(1230)末端相连接且朝向像素区域(20)的短边(22)延伸的第一竖直部(1231)、与该第一竖直部(1231)末端相连接且朝向像素区域(20)的长边(21)延伸的第二倾斜部(1232)、与该第二倾斜部(1232)末端相连接且平行于像素区域(20)的短边(22)的第一水平部(1233)、与该第一水平部(1233)末端相连接且平行于所述第二倾斜部(1232)的第三倾斜部(1234)、与该第三倾斜部(1234)末端相连接且平行于所述第一竖直部(1231)的第二竖直部(1235)、从该第二竖直部(1235)连接至所述连接部(121)的第四倾斜部(1236)。
4.一种阵列基板，其特征在于，在垂直方向上包括一衬底基板(1)、设于该衬底基板(1)上的遮光层(2)、设于所述遮光层(2)与衬底基板(1)上的缓冲层(3)、设于所述缓冲层(3)上的多晶硅层(4)、设于所述多晶硅层(4)上的栅极绝缘层(5)、设于所述栅极绝缘层(5)上的栅极(6)与栅极线(14)、设于所述栅极(6)与栅极绝缘层(5)上的层间绝缘层(7)、设于所述层间绝缘层(7)上的源极(81)、漏极(82)与数据线(13)、设于所述源极(81)、漏极(82)、及层间绝缘层(7)上的平坦层(9)、设于所述平坦层(9)上的公共电极(10)、设于所述公共电极(10)上的钝化层(11)、及设于所述钝化层(11)上的像素电极(12)；
所述阵列基板在水平方向上划分为数个像素区域(20)，每个像素区域(20)中设有一像素电极(12)，所述像素区域(20)具有相对设置的两长边(21)与分别连接于两长边(21)两端的两短边(22)，所述数据线(13)在水平方向上沿所述像素区域(20)的一长边(21)设置，所述栅极线(14)在水平方向上垂直于该数据线(13)且穿过该像素电极(12)；
所述像素电极(12)包括位于中心的连接部(121)、以及从该连接部(121)向像素区域(20)四周延伸的四个分支部(122)，所述四个分支部(122)沿穿过所述连接部(121)且平行于像素区域(20)的长边(21)与短边(22)的直线上下、左右对称，所述分支部(122)从连接部(121)起始后沿着平行于像素区域(20)的长边(21)的方向向像素区域(20)的短边(22)延伸，并且在接近像素区域(20)的短边(22)时向像素区域(20)的长边(21)延伸；其中，每个分支部(122)均由起点和终点均位于连接部(121)上的一条状电极(123)围成。
5.如权利要求4所述的阵列基板，其特征在于，所述条状电极(123)为圆滑的曲线。
6.如权利要求4所述的阵列基板，其特征在于，所述条状电极(123)由数条直线段组成，所述数条直线段包括从连接部(121)起始的第一倾斜部(1230)、与该第一倾斜部(1230)末端相连接且朝向像素区域(20)的短边(22)延伸的第一竖直部(1231)、与该第一竖直部(1231)末端相连接且朝向像素区域(20)的长边(21)延伸的第二倾斜部(1232)、与该第二倾斜部(1232)末端相连接且平行于像素区域(20)的短边(22)的第一水平部(1233)、与该第一水平部(1233)末端相连接且平行于所述第二倾斜部(1232)的第三倾斜部(1234)、与该第三倾斜部(1234)末端相连接且平行于所述第一竖直部(1231)的第二竖直部(1235)、从该第二竖直部(1235)连接至所述连接部(121)的第四倾斜部(1236)。
7.如权利要求4所述的阵列基板，其特征在于，所述层间绝缘层(7)与栅极绝缘层(5)上对应所述多晶硅层(4)的两端设有第一过孔(71)，所述源极(81)、漏极(82)分别经由第一过孔(71)与多晶硅层(4)相接触。
8.如权利要求4所述的阵列基板，其特征在于，所述平坦层(9)上对应所述漏极(82)的上方设有第二过孔(92)，所述像素电极(12)的连接部(121)位于该第二过孔(92)内并且与位于第二过孔(92)下方的漏极(82)相连接。
9.如权利要求4所述的阵列基板，其特征在于，所述阵列基板应用于FFS型液晶显示面板中。
10.如权利要求4所述的阵列基板，其特征在于，所述公共电极(10)与像素电极(12)的材料均为ITO。
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