CN202210200U - 一种阵列基板及液晶面板 - Google Patents

一种阵列基板及液晶面板 Download PDF

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CN202210200U
CN202210200U CN2011203139554U CN201120313955U CN202210200U CN 202210200 U CN202210200 U CN 202210200U CN 2011203139554 U CN2011203139554 U CN 2011203139554U CN 201120313955 U CN201120313955 U CN 201120313955U CN 202210200 U CN202210200 U CN 202210200U
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liquid crystal
array base
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王峥
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BOE Technology Group Co Ltd
Beijing BOE Display Technology Co Ltd
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Beijing BOE Display Technology Co Ltd
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Priority to PCT/CN2012/080376 priority patent/WO2013026381A1/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
    • G02F1/1343Electrodes
    • G02F1/134309Electrodes characterised by their geometrical arrangement
    • 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
    • G02F1/1343Electrodes
    • G02F1/134309Electrodes characterised by their geometrical arrangement
    • G02F1/134363Electrodes characterised by their geometrical arrangement for applying an electric field parallel to the substrate, i.e. in-plane switching [IPS]
    • 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
    • G02F1/1343Electrodes
    • 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
    • G02F1/1343Electrodes
    • G02F1/134309Electrodes characterised by their geometrical arrangement
    • G02F1/134318Electrodes characterised by their geometrical arrangement having a patterned common electrode
    • 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
    • G02F1/1343Electrodes
    • G02F1/134309Electrodes characterised by their geometrical arrangement
    • G02F1/134372Electrodes characterised by their geometrical arrangement for fringe field switching [FFS] where the common electrode is not patterned

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Geometry (AREA)
  • Liquid Crystal (AREA)

Abstract

本实用新型涉及液晶显示器技术领域,公开了一种阵列基板,包括玻璃基板(3)、公共电极层(5)、保护层(10)和形成在所述保护层(10)上的多个像素电极(2),所述玻璃基板(3)上形成有多个突起(9),所述公共电极层(5)覆盖于所述突起(9)和所述玻璃基板(3)上,所述公共电极层(5)覆盖于所述突起(9)上的部分形成有突起电极部(1),所述像素电极(2)与所述突起电极部(1)间隔排列,且所述突起电极部(1)的顶部与所述像素电极(2)大致处于一水平面上。本实用新型能提高液晶面板的透过率,及其画面的刷新率。

Description

一种阵列基板及液晶面板
技术领域
本实用新型涉及液晶显示器技术领域,特别涉及一种阵列基板及包括该阵列基板的液晶面板。
背景技术
透过率和刷新率是液晶显示器的重要指标。透过率指的是背光通过液晶面板之后的出光量,刷新率是指液晶充电的频率。透过率的提高能够提高显示器的亮度,降低成本。刷新率的提高可以提高动态画面的质量,减小拖尾,降低成本。
当前广视角水平电场的技术有IPS(共面转换:In-Plane-Switching)和FFS(边缘场交换:Fringe Field Switching)两种。IPS由于阵列基板中像素电极使用的是金属材料,因此影响了透过率;FFS由于存储电容很大,刷新率也只能到120Hz,也不能满足发展的市场需求。传统的FFS结构阵列基板如图1所示,包括公共电极层5’、像素电极2’、玻璃基板3’和保护层10’,所述公共电极层5’与像素电极2’之间形成电场4’,但是电场4’中不包含水平电场,造成对像素电极2’上方的液晶分子驱动力不强,而为了弥补液晶分子驱动力不强的不足,必须提高像素电极的排布密度,然而如果提高像素电极的排布密度,就会造成透过率降低。
在结构设计方面,电场对液晶的控制力决定着液晶的透过率。电极的宽度一般在3μm以上,而电场对液晶分子的控制,往往是在电极的边缘,因此电极的正上方往往是电场力最弱的位置,因此在这里的液晶分子透过率也不高,而造成透过率的整体下降。FFS结构当中也面临相同的情况,虽然像素电极采用透明的ITO(氧化铟锡)材料,但由于像素电极上方的液晶透过率不高,从而影响了整体的透过率。而且在FFS的结构中像素电极会和下面的公共电极形成一个很大的存储电容,存储电容大一方面对像素电压的稳定有好处,但是随着近年来需求高刷新率的产品越来越多,传统的FFS结构已经在应用上出现了明显的不足,而3D技术、集成技术等都需要较高的刷新率支持,而大存储电容使得FFS的像素需要更长的充电时间,降低刷新率。
实用新型内容
(一)要解决的技术问题
本实用新型要解决的技术问题其一是如何提高液晶面板画面的刷新率;其二是如何提高液晶面板的透过率。
(二)实用新型内容
为了解决上述技术问题,本实用新型提供了一种阵列基板,包括玻璃基板、公共电极层、保护层和形成在所述保护层上的多个像素电极,所述玻璃基板上形成有多个突起,所述公共电极层覆盖于所述突起和所述玻璃基板上,所述公共电极层覆盖于所述突起上的部分形成有突起电极部,所述像素电极与所述突起电极部间隔排列,且所述突起电极部的顶部与所述像素电极大致处于一水平面上。
其中,所述保护层材料为绝缘树脂。
其中,所述公共电极层和所述像素电极由透明导电材料制成。
其中,所述透明导电材料为ITO或IZO。
其中,所述突起为三角形突起或梯形突起。
本实用新型还提供了一种液晶面板,包括所述的阵列基板。
(三)有益效果
本实用新型由于所述玻璃基板上形成有多个突起,公共电极层覆盖于突起上的部分形成有突起电极部,且突起电极部的顶部与像素电极大致处于一水平面上,从而可增强电场中的水平电场部分,如此可降低第二电极的排布密度,因而在提高像素透过率的同时,可降低像素中的存储电容,并提高刷新率。
附图说明
图1为传统的FFS结构阵列基板示意图,并示出了其工作状态的电场;
图2~7为本实用新型的阵列基板的形成过程中,在各个工艺步骤的结构示意图;
图8为本实用新型实施例一的结构示意图,并示出了其工作状态的电场;
图9为本实用新型实施例二的结构示意图,并示出了其工作状态的电场。
其中,1突起电极部;2、2’像素电极;3、3’玻璃基板;4、4’电场;5、5’公共电极层;6栅线;7TFT;8数据线;9突起;10,10’保护层;11栅绝缘层;12树脂层;13公共电极线。
具体实施方式
下面结合附图和实施例,对本实用新型的具体实施方式作进一步详细描述。以下实施例用于说明本实用新型,但不用来限制本实用新型的范围。
实施例一
如图8所示,本实施例的阵列基板包括玻璃基板3、公共电极层5、保护层10和形成在保护层10上的多个像素电极2,所述玻璃基板3表面形成有多个突起9,公共电极层5覆盖于突起9和玻璃基板3上,公共电极层5覆盖于突起9上的部分形成有突起电极部1。像素电极2与突起电极部1间隔排列,突起电极部1的顶部与像素电极2大致处于同一水平面上。所述公共电极层5和像素电极2均使用透明材料制成,透明材料为ITO或IZO(氧化铟锌)。所述保护层10材料为绝缘树脂。
所述结构还包括公共电极线,公共电极层5与所述公共电极线13相连接。作为像素电极2通过过孔与TFT7的漏极相连接,TFT7的源极连接数据线8。
本实施例中,保护层10使用树脂材料(也可采用SiNx材料),突起9的形状为三角形。
如图8所示,充电之后突起电极部1与像素电极2之间形成有水平电场,对液晶分子进行驱动。由于公共电极层5上形成突起电极部1,因此顶端的液晶分子被极大程度的控制而提高液晶透过率。
实施例二
如图10所示,本实施例的结构与实施例一基本相同,所不同的是,突起9的形状为梯形。
如图2~7所示,本实用新型的制作工艺步骤如下:
1、利用溅射、曝光、刻蚀,剥离等工艺在玻璃基板上形成栅线6和公共电极线13。材料使用Al,Cu等金属导电材料,如图2所示。
2、利用溅射、曝光、刻蚀,剥离等工艺在步骤1的基础上形成栅绝缘层11和突起9,使用绝缘材料,如图3所示。
3、利用溅射、曝光、刻蚀,剥离等工艺在步骤2的基础上形成公共电极层5(材料为ITO或者其它透明材料),如图4所示。
4、在步骤3的基础上形成树脂层12。材料使用绝缘材料,如图4所示。
5、利用溅射、曝光、刻蚀、灰化、剥离等工艺在步骤4的基础上形成TFT7和数据线8。数据线8的材料使用Al,Cu等金属导电材料,如图5所示。
6、利用涂布、曝光、剥离等工艺在步骤5的基础上形成保护层过孔。保护层10材料可以使用无机绝缘材料或有机绝缘材料。
7、利用溅射、曝光、刻蚀,剥离等工艺在步骤6的基础上形成像素电极2,如图6所示。
实施例三
本实用新型还提供了一种包括上述阵列基板的液晶面板。
由以上实施例可以看出,对比当前的IPS和FFS技术,本实用新型的结构由于电场中的水平电场部分增强了对液晶的驱动力,因此提高了面板的透过率,使得透过率比IPS结构的更高,而与FFS结构相比像素存储电容能降低50%以上,大幅提高了像素的充电能力,大幅提高了画面刷新率。而充电能力的提高,使得在FFS结构上使用180Hz,甚至240Hz的刷新率成为可能。
以上实施方式仅用于说明本实用新型,而并非对本实用新型的限制,有关技术领域的普通技术人员,在不脱离本实用新型的精神和范围的情况下,还可以做出各种变化和变型,因此所有等同的技术方案也属于本实用新型的范畴,本实用新型的专利保护范围应由权利要求限定。

Claims (6)

1.一种阵列基板,包括玻璃基板(3)、公共电极层(5)、保护层(10)和形成在所述保护层(10)上的多个像素电极(2),其特征在于,所述玻璃基板(3)上形成有多个突起(9),所述公共电极层(5)覆盖于所述突起(9)和所述玻璃基板(3)上,所述公共电极层(5)覆盖于所述突起(9)上的部分形成有突起电极部(1),所述像素电极(2)与所述突起电极部(1)间隔排列,且所述突起电极部(1)的顶部与所述像素电极(2)大致处于一水平面上。
2.如权利要求1所述的阵列基板,其特征在于,所述保护层(10)材料为绝缘树脂。
3.如权利要求1所述的阵列基板,其特征在于,所述公共电极层(5)和所述像素电极(2)由透明导电材料制成。
4.如权利要求3所述的阵列基板,其特征在于,所述透明导电材料为ITO或IZO。
5.如权利要求1~4中任一项所述的阵列基板,其特征在于,所述突起(9)为三角形突起或梯形突起。
6.一种液晶面板,其特征在于,包括如权利要求1~4中任一项所述的阵列基板。
CN2011203139554U 2011-08-25 2011-08-25 一种阵列基板及液晶面板 Expired - Lifetime CN202210200U (zh)

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CN2011203139554U CN202210200U (zh) 2011-08-25 2011-08-25 一种阵列基板及液晶面板
PCT/CN2012/080376 WO2013026381A1 (zh) 2011-08-25 2012-08-20 阵列基板、液晶面板及液晶显示装置
US13/699,654 US9110340B2 (en) 2011-08-25 2012-08-20 Array substrate, liquid crystal panel and liquid crystal display device comprising protrusion electrode parts

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013026381A1 (zh) * 2011-08-25 2013-02-28 京东方科技集团股份有限公司 阵列基板、液晶面板及液晶显示装置
CN103018976A (zh) * 2012-12-12 2013-04-03 河北工业大学 一种蓝相液晶显示器装置
WO2014139230A2 (zh) * 2013-03-13 2014-09-18 京东方科技集团股份有限公司 薄膜晶体管阵列基板、显示装置及方法
CN104898332A (zh) * 2015-06-16 2015-09-09 京东方科技集团股份有限公司 显示基板及其制备方法、显示面板和显示装置
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