CN100359396C - Ffs模式液晶显示装置 - Google Patents

Ffs模式液晶显示装置 Download PDF

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CN100359396C
CN100359396C CNB2004100564867A CN200410056486A CN100359396C CN 100359396 C CN100359396 C CN 100359396C CN B2004100564867 A CNB2004100564867 A CN B2004100564867A CN 200410056486 A CN200410056486 A CN 200410056486A CN 100359396 C CN100359396 C CN 100359396C
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ito electrode
ffs mode
black matrix
forms
liquid crystal
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CN1591142A (zh
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李景夏
金香律
田钟烨
安致旭
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Hydis Technologies Co Ltd
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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
    • 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
    • G02F1/1335Structural 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

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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)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

本发明公开了一种FFS模式液晶显示装置,其包括:下部基板和上部基板;在所述下部基板上形成的门行和与所述门行垂直交叉的数据行;在所述门行和数据行形成的空间中形成的第一ITO电极;在所述下部基板上形成,与所述第一ITO电极重迭的梳齿形的第二ITO电极;在所述上部基板上形成的黑色矩阵。其特征在于,从黑色矩阵的边缘部分与内侧隔开一定的长度形成所述第二ITO电极的楔部。

Description

FFS模式液晶显示装置
技术领域
本发明涉及一种FFS模式液晶显示装置,更详细地讲,涉及一种可以改善动作不均匀(driving Mura)和辉度波动等的FFS模式液晶显示装置。
背景技术
参照图1A和图1B,对现有的超(ultra)FFS模式液晶显示装置的制造方法说明如下。在此,图1A是现有的超FFS模式液晶显示装置的平面图,图1B是其剖面图。
现有技术的超FFS模式液晶显示装置如图1A和图1B所示,在所述下部基板10上配置门行11并与所述门行11垂直交叉地配置数据行15后,在所述门行11和数据行15形成的空间中配置第一ITO电极17,接着,把所述第一ITO电极17重迭的象素电极用第二ITO电极19的形状制成梳齿的形态,并使液晶定向位于0度。
如图1A所示,配置上部基板20以使其与所述下部基板10相对并隔开一定间隔,在该上部基板20上形成黑色矩阵(BM)21。在此,与所述黑色矩阵(BM)21重迭的象素电极用第二ITO电极19进一步从黑色矩阵21的边缘部分向侧方延长长度“a”。
根据该结构,由电场产生的液晶的扭转使上侧(滤色器基板)和下侧(阵列基板)互为反向,并构成补偿由液晶导电率的各向异性产生的兰(bluish)、黄(yellowish)的色度的移动。
发明内容
因而,在这种方法产生FFS模式中,电极间的重迭区域非常广,具有因长时间的电动作产生的绝缘膜老化等导致的视觉暂留图象不良的缺点。
为了改善该缺点研究了多种电极形状和结构变化等。但是,所述现有设计产生的FFS象素在实际透过区域和与BM有关的区域中,象素楔(pixelwedge)的形状及位置位于不是BM的实际的透过区域中。
因而,通过这样的与BM的关系,透过率的下降和辉度波动(即由与BM的相互作用产生的特性)等使产品的特性下降。
在此,本发明是为了解决上述现有技术的各种问题而提出的方案,其目的在于提供一种FFS模式的液晶显示装置及其制造方法,其将由FFS的设计结构赋予的黑色矩阵(BM)和象素电极的相关因素转换成新的概念,能够改善成为现有的FFS的问题的动作不均匀及辉度波动等。
为了达到上述目的,涉及本发明的FFS模式液晶显示装置及其制造方法,其FFS模式液晶显示装置包括:下部基板和上部基板;在所述下部基板上形成的门行和与所述门行垂直交叉的数据行;在所述门行和数据行形成的空间中形成的第一ITO电极;在所述下部基板上形成并与所述第一ITO电极重迭的梳齿形的第二ITO电极;在所述上部基板上形成的黑色矩阵。其中,从黑色矩阵的边缘部分与内侧隔开一定的长度形成所述第二ITO电极的楔部。
如上述说明,若使用涉及本发明的FFS模式液晶显示装置,由于改变现有的楔的位置和形态,并改善通过黑色矩阵和象素的楔之间的电场干涉产生的液晶的扭转(distortion),故可以使黑色矩阵(BM)和象素的楔及斜线型电极的位置位于导电性BM的内侧并改善液晶的偏光效率,且可以改善由楔部的灰色区域产生的不均匀(即阻滞、Y阻滞、辉度波动)和视觉暂留图象(即由于动作不稳定产生的液晶不稳定)。
另一方面,本发明不限于上述特定的希望的实施方式,在不脱离权本发明内容的宗旨的范围内,具有在该发明所属领域内的常识的人能实施多种变化。
附图说明
图1A及图1B是现有的超FFS模式液晶显示装置的平面图和剖面图;
图2A及图2B是涉及本发明一实施例的FFS模式液晶显示装置的平面图和剖面图;
图3及图4是说明涉及本发明的另一实施例的FFS模式液晶显示装置的图。
具体实施方式
下面参照附图对涉及本发明的FFS模式液晶显示装置进行详细说明。
图2A是涉及本发明一实施例的FFS模式液晶显示装置的平面图;图2B是涉及本发明一实施例的FFS液晶显示装置的剖面图。
图3及图4是说明涉及本发明的另一实施例的FFS液晶显示装置的图,是表示使楔的电极不互交、改善液晶扭转的实施例的示意图。
涉及本发明一实施例的FFS液晶显示装置如图2A及图2B所示,在所述下部基板30上配置门行31并与所述门行31垂直交叉地配置所述数据行35后,在所述门行31和数据行35形成的空间中配置第一ITO电极37,接着,把所述第一ITO电极37重迭的象素电极用第二ITO电极39的形状制成梳齿形,使液晶定向位于0度。
如图2B所示,相对所述下部基板30,隔开一定的间隔地配置上部基板40,在该上部基板40上形成黑色矩阵(BM)41。在此,与所述黑色矩阵(BM)41重迭的象素电极用第二ITO电极19和现存的情况不同,形成进一步从黑色矩阵41与内侧隔开长度“b”。
另一方面,作为本发明的另一实施例,如图3或图4所示,可以通过使象素电极用第二ITO电极59的楔电极与黑色矩阵部61不互交,改善液晶的扭转。

Claims (5)

1一种FFS模式液晶显示装置,包括:下部基板和上部基板;在所述下部基板上形成的门行和与所述门行垂直交叉的数据行;在所述门行和数据行形成的空间中形成的第一ITO电极;在所述下部基板上形成、与所述第一ITO电极重迭的梳齿形的第二ITO电极;在所述上部基板上形成的黑色矩阵,其特征在于,从黑色矩阵的边缘部分与内侧隔开一定的长度形成所述第二ITO电极的楔部。
2如权利要求1所述的FFS模式液晶显示装置,其特征在于,至少隔开0.5μ以上形成所述第二ITO电极的楔部。
3如权利要求1所述的FFS模式液晶显示装置,其特征在于,所述黑色矩阵和位于象素电极的楔侧的电极由相互切割的形状构成。
4如权利要求1所述的FFS模式液晶显示装置,其特征在于,所述象素电极的位置保持错开的形态。
5如权利要求1所述的FFS模式液晶显示装置,其特征在于,所述黑色矩阵的宽度为22μm以下,位于数据行部的中央并与象素电极对称。
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KR101107265B1 (ko) * 2004-12-31 2012-01-19 엘지디스플레이 주식회사 수평 전계 박막 트랜지스터 기판 및 그 제조 방법과, 그를이용한 액정 패널 및 그 제조 방법
KR101125254B1 (ko) * 2004-12-31 2012-03-21 엘지디스플레이 주식회사 프린지 필드 스위칭 타입의 박막 트랜지스터 기판 및 그제조 방법과, 그를 이용한 액정 패널 및 그 제조 방법
KR20060131013A (ko) 2005-06-14 2006-12-20 비오이 하이디스 테크놀로지 주식회사 프린지 필드 스위칭 모드 액정표시장치
JP4061416B2 (ja) * 2006-02-22 2008-03-19 エプソンイメージングデバイス株式会社 液晶表示装置
TWI617869B (zh) 2006-05-16 2018-03-11 半導體能源研究所股份有限公司 液晶顯示裝置和半導體裝置
JP5061505B2 (ja) 2006-05-25 2012-10-31 日本電気株式会社 横電界方式のアクティブマトリクス型液晶表示装置
TWI356228B (en) 2006-12-11 2012-01-11 Chimei Innolux Corp Liquid crystal display device
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KR101323488B1 (ko) 2007-03-02 2013-10-31 엘지디스플레이 주식회사 액정표시패널 및 그 제조 방법
KR101460138B1 (ko) 2007-04-10 2014-11-10 삼성디스플레이 주식회사 표시기판, 이를 포함하는 액정표시장치 및 이의 제조 방법
CN101373299B (zh) * 2007-08-21 2010-11-10 北京京东方光电科技有限公司 Ffs薄膜晶体管液晶显示器像素结构及其制造方法
JP5519101B2 (ja) * 2007-09-28 2014-06-11 株式会社ジャパンディスプレイ 電子機器
TWI362528B (en) * 2008-01-02 2012-04-21 Au Optronics Corp Pixel structure and liquid crystal display having the same
JP5261237B2 (ja) * 2009-03-19 2013-08-14 株式会社ジャパンディスプレイウェスト 液晶表示パネル
CN103140796B (zh) * 2010-09-30 2015-11-25 凸版印刷株式会社 滤色器基板以及液晶显示装置
KR20120077818A (ko) * 2010-12-31 2012-07-10 삼성전자주식회사 표시 기판 및 이의 제조 방법
KR101997745B1 (ko) 2013-01-25 2019-07-09 삼성디스플레이 주식회사 액정 표시 장치
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US20070296902A1 (en) 2007-12-27
JP2005070747A (ja) 2005-03-17
KR20050021135A (ko) 2005-03-07
US7535534B2 (en) 2009-05-19
TWI319831B (en) 2010-01-21
KR100617612B1 (ko) 2006-09-01
US20050046775A1 (en) 2005-03-03
TW200516327A (en) 2005-05-16
CN1591142A (zh) 2005-03-09

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