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CN106547153A - 一种液晶显示面板及液晶显示装置 - Google Patents

一种液晶显示面板及液晶显示装置 Download PDF

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Publication number
CN106547153A
CN106547153A CN201611116745.XA CN201611116745A CN106547153A CN 106547153 A CN106547153 A CN 106547153A CN 201611116745 A CN201611116745 A CN 201611116745A CN 106547153 A CN106547153 A CN 106547153A
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electrode
display panels
main electrode
substrate
branch
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崔博钦
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TCL China Star Optoelectronics Technology Co Ltd
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Shenzhen China Star Optoelectronics Technology Co Ltd
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Priority to CN201611116745.XA priority Critical patent/CN106547153A/zh
Priority to US15/327,327 priority patent/US10649284B2/en
Priority to PCT/CN2016/112534 priority patent/WO2018103156A1/zh
Publication of CN106547153A publication Critical patent/CN106547153A/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
    • G02F1/1337Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • G02F1/133707Structures for producing distorted electric fields, e.g. bumps, protrusions, recesses, slits in pixel electrodes
    • 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
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    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133528Polarisers
    • 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
    • G02F1/1337Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • G02F1/133753Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers with different alignment orientations or pretilt angles on a same surface, e.g. for grey scale or improved viewing angle
    • 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
    • G02F1/1337Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • G02F1/13378Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation
    • G02F1/133788Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation by light irradiation, e.g. linearly polarised light photo-polymerisation
    • 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
    • G02F1/1337Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • G02F1/133753Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers with different alignment orientations or pretilt angles on a same surface, e.g. for grey scale or improved viewing angle
    • G02F1/133757Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers with different alignment orientations or pretilt angles on a same surface, e.g. for grey scale or improved viewing angle with different alignment orientations
    • 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
    • G02F1/1337Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • G02F1/133753Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers with different alignment orientations or pretilt angles on a same surface, e.g. for grey scale or improved viewing angle
    • G02F1/133761Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers with different alignment orientations or pretilt angles on a same surface, e.g. for grey scale or improved viewing angle with different pretilt angles
    • 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
    • G02F1/134345Subdivided pixels, e.g. for grey scale or redundancy
    • 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
    • G02F2201/12Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode
    • G02F2201/122Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode having a particular pattern
    • 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
    • G02F2201/12Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode
    • G02F2201/123Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode pixel

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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)
  • Spectroscopy & Molecular Physics (AREA)
  • Geometry (AREA)
  • Liquid Crystal (AREA)

Abstract

本发明提供一种液晶显示面板及液晶显示装置,其包括:第一基板、第二基板以及设置在第一基板和第二基板之间的液晶层;第一基板上设置有多个像素电极,每个像素电极包括一水平主干电极和一竖直主干电极,水平主干电极和竖直主干电极将像素电极对应的像素单元划分为四个透光区,且相邻的透光区具有不同的配向方向;像素电极还包括位于四个透光区内的多条枝干电极,枝干电极平行于水平主干电极或竖直主干电极。本发明的液晶显示面板及液晶显示装置,不仅可以减弱液晶显示面板中出现的暗纹,进而提高了液晶显示面板的透光率,而且可以改善现有技术中液晶显示面板侧视时的洗白问题,使液晶显示面板具有较佳的侧视效果。

Description

一种液晶显示面板及液晶显示装置
技术领域
本发明涉及液晶显示面板领域,尤其涉及一种液晶显示面板及液晶显示装置。
背景技术
UV2A(Ultraviolet Vertical Alignment)技术是一种采用紫外线对垂直配向液晶显示面板中的液晶进行配向的技术,其基本原理是在玻璃基板上涂有对紫外线具有反应的高分子材料的配向膜,在紫外线的照射下,配向膜表面的高分子主链会沿着紫外线照射的方向倾斜,从而使得液晶分子可以沿着这个主链方向倾斜。目前这种技术主要应用在具有大视角的垂直配向模式液晶显示器上,提高了大视角液晶显示器的开口率、对比度、响应速度等特性。
如图1所示,图1为现有的液晶显示面板中万字暗纹的图形示意图;由于UV2A技术采用特殊的正交垂直光配相方式,使得液晶显示面板在亮态时,在子像素上形成“卐”的万字暗纹,万字暗纹的出现降低了液晶显示面板的透光率;另外,现有的液晶显示面板侧视时会有严重的washout(俗称洗白)问题,亦即侧视时,由于亮度变高而使画面变白的情况,使得侧视时的显示品质明显的下降。
故,有必要提供一种液晶显示面板及液晶显示装置,以解决现有技术所存在的问题。
发明内容
本发明的目的在于提供一种液晶显示面板,以解决现有的液晶显示面板中出现的暗纹,进而降低了液晶显示面板的透光率以及液晶显示面板侧视时的洗白现象的技术问题。
为解决上述问题,本发明提供的技术方案如下:
本发明提供一种液晶显示面板,其包括:第一基板、第二基板以及设置在所述第一基板和所述第二基板之间的液晶层;
所述第一基板上设置有多个像素电极,每个所述像素电极包括一水平主干电极和一竖直主干电极,所述水平主干电极和所述竖直主干电极将所述像素电极对应的像素单元划分为四个透光区,且相邻的所述透光区具有不同的配向方向;
所述像素电极还包括位于所述四个透光区内的多条枝干电极,所述枝干电极平行于所述水平主干电极或所述竖直主干电极,使得所述透光区内的配向方向平行于位于所述透光区内的所述枝干电极。
在本发明的液晶显示面板中,相邻所述透光区内的所述枝干电极互相垂直。
在本发明的液晶显示面板中,四个所述透光区内的配向方向为水平向左、竖直向下、水平向右和竖直向上。
在本发明的液晶显示面板中,位于同一透光区内的所述枝干电极的一端汇聚于所述竖直主干电极或所述水平主干电极。
在本发明的液晶显示面板中,所述水平主干电极和所述竖直主干电极的宽度介于为3微米至8微米之间。
在本发明的液晶显示面板中,所述枝干电极的宽度介于2微米至4微米之间。
在本发明的液晶显示面板中,位于同一透光区内的相邻所述枝干电极的距离为2微米至4微米之间。
在本发明的液晶显示面板中,还包括:第一偏光片和第二偏光片,所述第一偏光片位于所述第一基板上,所述第二偏光片位于所述第二基板上,所述第一偏光片与所述枝干电极之间的夹角为45度。
在本发明的液晶显示面板中,所述第一偏光片与所述第二偏光片之间的夹角为90度。
依据本发明的上述目的,还提供一种液晶显示装置,其包括以上所述的液晶显示面板。
与现有技术相比,本发明的液晶显示面板,通过将像素电极划分为水平主干电极、竖直主干电极以及多条枝干电极,不仅可以减弱液晶显示面板中出现的暗纹,进而提高了液晶显示面板的透光率,而且可以改善现有技术中液晶显示面板侧视时的洗白问题,使液晶显示面板具有较佳的侧视效果。
为让本发明的上述内容能更明显易懂,下文特举优选实施例,并配合所附图式,作详细说明如下:
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。
图1为现有的液晶显示面板中万字暗纹的图形示意图;
图2为本发明液晶显示面板的优选实施例的结构示意图;
图3为本发明液晶显示面板的优选实施例的一个像素单元对应的像素电极结构示意图;
图4为本发明液晶显示面板的优选实施例的配向预倾角示意图;
图5为本发明液晶显示面板优选实施例的液晶分子倾倒方向示意图。
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。
请参照图2及图3,其中,图2为本发明液晶显示面板的优选实施例的结构示意图;图3为本发明液晶显示面板的优选实施例的一个像素单元对应的像素电极结构示意图。
本优选实施例的液晶显示面板10,包括:第一基板101、第二基板102、液晶层103、第一偏光片104、第二偏光片105、第一配向膜106以及第二配向膜107;其中,第一偏光片104位于第一基板101外侧,第一配向膜106位于第一基板101内侧,第二偏光片105位于第二基板102外侧,第二配向膜107位于第二基板102内侧。
第一基板101上设置有多个像素电极20,每个像素电极20对应一个像素单元,其中,每个像素电极20包括一水平主干电极201和一竖直主干电极202,水平主干电极201和竖直主干电极202将像素电极对应的像素单元划分为四个透光区,且相邻透光区具有不同的配向方向。像素电极20还包括位于四个透光区内的多条枝干电极203,枝干电极203平行于水平主干电极201或竖直主干电极202,使得透光区内的配向方向平行于位于透光区内的枝干电极。
相邻透光区内的枝干电极203互相垂直,具体地,四个透光区分别为:第一透光区204、第二透光区205、第三透光区206以及第四透光区207,位于第一透光区204以及第三透光区206内的枝干电极203平行于水平主干电极201,并且位于第一透光区204内的枝干电极203的一端以及位于第三透光区206内的枝干电极203的一端汇聚于竖直主干电极202上;位于第二透光区205以及第四透光区207内的枝干电极203平行于竖直主干电极202,并且,位于第二透光区205内的枝干电极203的一端以及位于第四透光区207内的枝干电极203的一端汇聚于水平主干电极201上。
优选的,水平主干电极201和竖直主干电极202的宽度介于3微米至8微米之间;位于四个透光区内的枝干电极203的宽度介于2微米至4微米之间。同一透光区内的相邻枝干电极203之间具有一狭缝208,狭缝208的宽度介于2微米至4微米之间。
本优选实施例通过将像素电极20划分为水平主干电极201、竖直主干电极202以及多条枝干电极203,并且位于同一透光区内的枝干电极203之间具有一狭缝208,狭缝208处的电场将诱导该处的液晶分子发生相应的偏转,增加透光率,从而减弱液晶显示面板中出现的暗纹。
另外,本优选实施例的四个透光区内的配向方向为水平方向和竖直方向,具体地,第一透光区内的配向方向为水平向左,第二透光区内的配向方向为竖直向下,第三透光区内的配向方向为水平向右,第四透光区内的配向方向为竖直向上,形成这四个透光区内的不同配向方向的原理如下:
首先,参阅图4,图4为本发明液晶显示面板的优选实施例的配向预倾角示意图。第一配向膜301与第二配向膜302采用UV2A技术实现两个预倾角方向:水平方向和竖直方向,第一配向膜301的预倾角方向为交替排列的竖直向下方向和竖直向上方向,第二配向膜302的预倾角方向为交替排列的水平向左方向和水平向右方向,每个像素单元包括第一配向膜301的一对竖直向下和竖直向上的预倾角方向,以及第二配向膜302的一对水平向左和水平向右的预倾角方向,因此,每个像素单元303包括四个预倾角方向区域,分别为左上方区域304、左下方区域305、右下方区域306和右上方区域307。例如,在左上方区域304中,由于第一配向膜301的预倾角方向呈竖直向上方向,第二配向膜302的预倾角方向呈水平向左方向,因此,处于左上区域304内的液晶分子的配向方向的预倾角方向将向左上方倾斜。其他区域中液晶分子的配向方向同理可知,可参照图4所示,在此不做具体描述。
接着,结合像素电极的结构(参阅图3),在液晶显示面板处于亮态时,形成四个透光区内的不同配向方向。具体地,左上方区域304对应第一透光区204内的像素电极的结构,包括水平主干电极201的右半部分和竖直主干电极202的上半部分以及多条平行于水平主干电极201的枝干电极203,进而形成第一透光区204内水平向左的配向方向;左下方区域305对应第二透光区205内的像素电极的结构,包括水平主干电极201的左半部分和竖直主干电极202上半部分以及多条平行于竖直主干电极202的枝干电极203,进而形成第二透光区205内竖直向下的配向方向;右下方区域306对应第三透光区206内的像素电极的结构,包括水平主干电极201的左半部分和竖直主干电极202下半部分以及多条平行于水平主干电极201的枝干电极203,进而形成第三透光区206内水平向右的配向方向;右上方区域307对应第四透光区207内的像素电极的结构,包括水平主干电极201的右半部分和竖直主干电极202下半部分以及多条平行于竖直主干电极202的枝干电极203,进而形成第四透光区207内竖直向上的配向方向。
优选地,第一偏光片与枝干电极之间的夹角为45度角,并且,第一偏光片和第二偏光片之间的夹角为90度,这样进一步使得液晶显示面板可以获得较高的透光率。
参阅图5,图5为本发明液晶显示面板优选实施例的液晶分子倾倒方向示意图。于图示中显示第一方向X、一第二方向y及一第三方向Z,第一方向X、第二方向y及第三方向Z实质上是两两相互垂直。其中,第一方向X与显示面板的扫描线的延伸方向实质上平行,第二方向y与显示面板的数据线的延伸方向实质上平行,且第三方向Z为垂直第一方向X与第二方向y的另一方向。
当像素单元为亮态且液晶分子的最终位置的Phi角与第一偏光片的夹角为45/135/225/315度,且theta角为90度时,液晶分子的穿透效率最好(Phi角为液晶长轴方向于X-y平面上的投影与X方向之间的夹角,theta角为液晶分子的长轴方向与Z方向之间的夹角)。本实施例是利用数据线将对应的数据电压传送至像素单元,并通过像素电极与公共电极之间所产生的电场与液晶分子的预倾角方向于X-y平面的投影分量的合力,使亮态时的液晶分子的长轴方向倾倒于与第一偏光片的夹角为45/135/225/315度的位置,借此使液晶分子的穿透效率最好。
另外,于现有技术中的液晶显示面板的驱动中,液晶分子被电场驱动时,其theta角会随着灰阶的不同而往90度的角度产生变化,但是Phi角于不同灰阶驱动时是直接倒向45/135/225/315度,并不会随着灰阶的不同而有所变化。本发明通过上述像素电极与配向方向的设计,使液晶分子的Phi角随着灰阶的不同渐变至45/135/225/315度,使得显示面板具有IP S型或FF S型的光学特性表现。换言之,本实施例的像素电极对应的液晶分子在亮态时同时有theta角与Phi角的变化,因此可改善现有技术液晶显示面板的洗白问题,使液晶显示面板具有较佳的侧视效果。
本发明的液晶显示面板,通过将像素电极划分为水平主干电极、竖直主干电极以及多条枝干电极,不仅可以减弱液晶显示面板中出现的暗纹,进而提高了液晶显示面板的透光率,而且可以改善现有技术中液晶显示面板侧视时的洗白问题,使液晶显示面板具有较佳的侧视效果。
本发明还提供一种液晶显示装置,该液晶显示装置包括背光源以及液晶显示面板;液晶显示面板包括第一基板、第二基板以及设置在第一基板和第二基板之间的液晶层;第一基板上设置有多个像素电极,每个像素电极包括一水平主干电极和一竖直主干电极,水平主干电极和竖直主干电极将像素电极对应的像素单元划分为四个透光区,且相邻的透光区具有不同的配向方向;像素电极还包括位于四个透光区内的多条枝干电极,枝干电极平行于水平主干电极或竖直主干电极。
相邻透光区内的枝干电极互相垂直。水平主干电极和竖直主干电极的宽度介于为3微米至8微米之间。枝干电极的宽度介于2微米至4微米之间。位于同一透光区内的相邻枝干电极的距离为2微米至4微米之间。枝干电极的一端汇聚于竖直主干电极或水平主干电极。配向方向为水平方向和竖直方向。
液晶显示面板还包括第一偏光片和第二偏光片,第一偏光片位于第一基板上,第二偏光片位于第二基板上,第一偏光片与枝干电极之间的夹角为45度。第一偏光片与第二偏光片之间的夹角为90度。
本优选实施例的液晶显示装置的具体结构以及工作原理与上述的液晶显示面板的优选实施例中的描述相同或相似,具体请参见上述液晶显示面板的优选实施例中的相关描述。
本发明的液晶显示面板及液晶显示装置,通过将像素电极划分为水平主干电极、竖直主干电极以及多条枝干电极,不仅可以减弱液晶显示面板中出现的暗纹,进而提高了液晶显示面板的透光率,而且可以改善现有技术中液晶显示面板侧视时的洗白问题,使液晶显示面板具有较佳的侧视效果。
综上,虽然本发明已以优选实施例揭露如上,但上述优选实施例并非用以限制本发明,本领域的普通技术人员,在不脱离本发明的精神和范围内,均可作各种更动与润饰,因此本发明的保护范围以权利要求界定的范围为准。

Claims (10)

1.一种液晶显示面板,其特征在于,包括:第一基板、第二基板以及设置在所述第一基板和所述第二基板之间的液晶层;
所述第一基板上设置有多个像素电极,每个所述像素电极包括一水平主干电极和一竖直主干电极,所述水平主干电极和所述竖直主干电极将所述像素电极对应的像素单元划分为四个透光区,且相邻的所述透光区具有不同的配向方向;
所述像素电极还包括位于所述四个透光区内的多条枝干电极,所述枝干电极平行于所述水平主干电极或所述竖直主干电极,使得所述透光区内的配向方向平行于位于所述透光区内的所述枝干电极。
2.根据权利要求1所述的液晶显示面板,其特征在于,相邻所述透光区内的所述枝干电极互相垂直。
3.根据权利要求1所述的液晶显示面板,其特征在于,四个所述透光区内的配向方向为水平向左、竖直向下、水平向右和竖直向上。
4.根据权利要求1所述的液晶显示面板,其特征在于,位于同一透光区内的所述枝干电极的一端汇聚于所述竖直主干电极或所述水平主干电极。
5.根据权利要求1所述的液晶显示面板,其特征在于,所述水平主干电极和所述竖直主干电极的宽度介于为3微米至8微米之间。
6.根据权利要求1所述的液晶显示面板,其特征在于,所述枝干电极的宽度介于2微米至4微米之间。
7.根据权利要求1所述的液晶显示面板,其特征在于,位于同一透光区内的相邻所述枝干电极的距离为2微米至4微米之间。
8.根据权利要求1所述的液晶显示面板,其特征在于,还包括:第一偏光片和第二偏光片,所述第一偏光片位于所述第一基板上,所述第二偏光片位于所述第二基板上,所述第一偏光片与所述枝干电极之间的夹角为45度。
9.根据权利要求8所述的液晶显示面板,其特征在于,所述第一偏光片与所述第二偏光片之间的夹角为90度。
10.一种液晶显示装置,其特征在于,包括权利要求1-9任一所述的液晶显示面板。
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