CN103901682A - 一种像素电极单元及显示面板 - Google Patents

一种像素电极单元及显示面板 Download PDF

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CN103901682A
CN103901682A CN201410158085.6A CN201410158085A CN103901682A CN 103901682 A CN103901682 A CN 103901682A CN 201410158085 A CN201410158085 A CN 201410158085A CN 103901682 A CN103901682 A CN 103901682A
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徐亮
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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 US14/647,099 priority patent/US20170059944A1/en
Priority to PCT/CN2014/078281 priority patent/WO2015158028A1/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
    • 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
    • G02F1/13439Electrodes characterised by their electrical, optical, physical properties; materials therefor; method of making
    • 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
    • G02F2201/121Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode common or background
    • 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
    • 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
    • G02F2201/52RGB geometrical arrangements

Abstract

本发明公开了一种像素电极单元及显示面板。所述像素电极单元(100)包括以行依次排列的红色子像素(100R)、绿色子像素(100G)及蓝色子像素(100B),所述绿色子像素(100G)具有绿色像素主区(101G)及绿色像素辅区(102G),所述蓝色子像素(100B)仅具有蓝色像素主区(101B)。本发明的像素电极单元中,针对人眼敏感的绿色进行8畴低色差设计,而对蓝色采用4畴设计,提高像素的开口率,在色差与开口率之间寻求平衡。

Description

一种像素电极单元及显示面板
技术领域
本发明属于液晶显示领域,具体涉及一种像素电极单元及显示面板。
背景技术
目前,平板显示器的种类大致包括液晶显示器(LCD:liquid crystal display)、等离子体显示器(PDP:plasma display panel)以及OLED(organic light-emittingdiode,有机发光二极管)。而其中液晶显示器的液晶显示模式主要包括面内开关显示模式(IPS:in plan switch)和垂直配向显示模式(VA:vertical alignment)。
对于垂直配向显示模式,如图4和图5所示,液晶显示器包括第一基板11、第二基板12及如同夹心饼干一样设于第一基板11和第二基板12之间的负性液晶14。在第一基板11上形成有公共电极15;在第二基板12上形成有像素电极13,由此可以形成垂直电场。当垂直电场作用在负性液晶14上时,液晶分子在电场作用下发生特定方向的偏转,最终液晶分子的长轴垂直于电场方向,如图5所示。
然而,垂直配向显示模式在大视角的情况下,其色差(color shift)会变得严重。针对这个问题,通过将子像素(sub-pixel)的4畴(4domain)设计变成8畴(8domain)设计。但为了实现8畴(8domain)设计,需要增加金属走线及电容,导致像素的开口率(aperture ratio)降低。
发明内容
本发明的目的在于,提供一种像素电极单元,其能够提高像素的开口率,在色差与开口率之间寻求平衡。
本发明通过如下技术方案实现:一种像素电极单元,所述像素电极单元包括以行排列的红色子像素、绿色子像素及蓝色子像素,所述绿色子像素具有绿色像素主区及绿色像素辅区,所述蓝色子像素仅具有蓝色像素主区。
作为上述技术方案的进一步改进,所述红色子像素具有红色像素主区及红色像素辅区。
作为上述技术方案的进一步改进,所述红色子像素仅具有红色像素主区。
作为上述技术方案的进一步改进,所述绿色像素主区在所述绿色子像素中所占面积小于及所述绿色像素辅区在所述绿色子像素中所占面积。
作为上述技术方案的进一步改进,所述像素电极单元还包括黄色子像素,所述黄色子像素仅具有黄色像素主区。
作为上述技术方案的进一步改进,所述像素电极单元还包括白色子像素,所述白色子像素仅具有白色像素主区。
本发明还提供一种显示面板,所述显示面板包括第一基板、第二基板及设于第一基板与第二基板之间的负性液晶,在第一基板上形成有公共电极,在第二基板上形成有像素电极,所述像素电极由多个像素电极单元阵列而成,所述像素电极单元包括以行排列的红色子像素、绿色子像素及蓝色子像素,所述绿色子像素具有绿色像素主区及绿色像素辅区,所述蓝色子像素仅具有蓝色像素主区。
作为上述技术方案的进一步改进,所述红色子像素具有红色像素主区及红色像素辅区。
作为上述技术方案的进一步改进,所述红色子像素仅具有红色像素主区。
作为上述技术方案的进一步改进,所述绿色像素主区在所述绿色子像素中所占面积小于及所述绿色像素辅区在所述绿色子像素中所占面积。
本发明的有益效果是:本发明的像素电极单元包括红色子像素、绿色子像素及蓝色子像素,其中,绿色子像素具有绿色像素主区及绿色像素辅区,蓝色子像素仅具有蓝色像素主区,本发明的像素电极单元中,针对人眼敏感的绿色进行8畴低色差设计,而对蓝色采用4畴设计,提高像素的开口率,在色差与开口率之间寻求平衡。
附图说明
图1是根据本发明的第一实施例的像素电极单元的示意图;
图2是根据本发明的第二实施例的像素电极单元的示意图;
图3是显示本发明的像素电极单元的布置方式的示意图;
图4是垂直配向显示模式不加电压状态下的示意图;
图5是垂直配向显示模式加电压状态下的示意图;
图6是与图1所示像素电极单元对应的子像素的形状的示意图;
图7是根据本发明的第三实施例的像素电极单元的示意图;
图8是常规的像素电极单元的示意图。
附图标记含义:10-像素电极单元;100、100A、100C-像素电极单元;100R-红色子像素;100G-绿色子像素;100B-蓝色子像素;101G-绿色像素主区;102G-绿色像素辅区;101B-蓝色像素主区;101R-红色像素主区;102R-红色像素辅区;100Y-黄色子像素;100W-白色子像素;101Y-黄色像素主区;101W-白色像素主区;11-第一基板;1000-显示面板;12-第二基板;13-像素电极;14-液晶;15-公共电极;140-第一主干部;150-第二主干部;160-分支部。
具体实施方式
以下结合附图对本发明的具体实施方式进行进一步的说明。
参照图8,常规的像素电极单元10包括以行依次排列的红色子像素10R、绿色子像素10G及蓝色子像素10B。所述绿色子像素10G具有绿色像素主区11G及绿色像素辅区12G,所述红色子像素10R具有红色像素主区11R及红色像素辅区12R,所述蓝绿色子像素10B具有蓝色像素主区11B及蓝色像素辅区12B。该像素电极单元10的红色子像素10R、绿色子像素10G及蓝色子像素10B均采用8畴设计,由此改善色差。然而,为了实现8畴设计,需要增加金属走线及电容等,导致像素的开口率降低。
本发明人锐意研究,根据人眼对550nm的光的差异较为敏感,对各种颜色的像素采用不同的设计。本发明的像素电极单元中,绿色子像素采用低色差的8畴设计,而其他颜色像素可以采用4畴设计,以提高像素的开口率,在色差与开口率之间寻求平衡。
在第一实施例中,如图1所示,像素电极单元100包括以行依次排列的红色子像素100R、绿色子像素100G及蓝色子像素100B。所述绿色子像素100G具有绿色像素主区101G及绿色像素辅区102G,而所述红色子像素100R仅具有红色像素主区101R,所述蓝色子像素100B仅具有蓝色像素主区101B。
其中,所述绿色像素主区101G在所述绿色子像素100G中所占面积小于及所述绿色像素辅区102G在所述绿色子像素100G中所占面积。如图6所示,绿色像素主区101G、绿色像素辅区102G、红色像素主区101R、蓝色像素主区101B均采用类似的米字型结构。以红色像素主区101R为例进行说明。红色像素主区101R具有第一主干部140、第二主干部150及多个分支部160。第一主干部140和第二主干部150相互垂直,将红色像素主区101R分成4个区域(4domain)。分支部160从第一主干部140和第二主干部150倾斜伸出,且分支部160之间相互平行。
在第二实施例中,如图2所示,像素电极单元100A包括以行依次排列的红色子像素100R、绿色子像素100G及蓝色子像素100B。其中,所述绿色子像素100G具有绿色像素主区101G及绿色像素辅区102G,所述红色子像素100R具有红色像素主区101R及红色像素辅区102R,所述蓝色子像素100B仅具有蓝色像素主区101B。人眼对红色也相对敏感,在第二实施例中,对红色子像素100R采用8畴设计,改善色差。
在第三实施例中,如图7所示,所述像素电极单元100包括红色子像素100R、绿色子像素100G、蓝色子像素100B、黄色子像素100Y和白色子像素100W。所述绿色子像素100G具有绿色像素主区101G及绿色像素辅区102G,而所述红色子像素100R仅具有红色像素主区101R,所述蓝色子像素100B仅具有蓝色像素主区101B,所述黄色子像素100Y仅具有黄色像素主区101Y,所述白色子像素100W仅具有白色像素主区101W。
本发明还提供了一种显示面板1000。所述显示面板1000包括第一基板11、第二基板12及设于第一基板11与第二基板12之间的负性液晶14。在第一基板11上形成有公共电极15,在第二基板12上形成有像素电极13。像素电极13和公共电极15由例如ITO(氧化铟锡)、IZO(氧化铟锌)等透明导电材料制成。
所述像素电极13由多个像素电极单元阵列而成,如图3所示。像素电极单元为上述像素电极单元100、像素电极单元100A或像素电极单元100C。
以上具体实施方式对本发明进行了详细的说明,但这些并非构成对本发明的限制。本发明的保护范围并不以上述实施方式为限,但凡本领域普通技术人员根据本发明所揭示内容所作的等效修饰或变化,皆应纳入权利要求书中记载的保护范围内。

Claims (10)

1.一种像素电极单元(100),其特征在于,所述像素电极单元(100)包括以行排列的红色子像素(100R)、绿色子像素(100G)及蓝色子像素(100B),所述绿色子像素(100G)具有绿色像素主区(101G)及绿色像素辅区(102G),所述蓝色子像素(100B)仅具有蓝色像素主区(101B)。
2.根据权利要求1所述的像素电极单元(100),其特征在于,所述红色子像素(100R)具有红色像素主区(101R)及红色像素辅区(102R)。
3.根据权利要求1所述的像素电极单元(100),其特征在于,所述红色子像素(100R)仅具有红色像素主区(101R)。
4.根据权利要求1所述的像素电极单元(100),其特征在于,所述绿色像素主区(101G)在所述绿色子像素(100G)中所占面积小于及所述绿色像素辅区(102G)在所述绿色子像素(100G)中所占面积。
5.根据权利要求1所述的像素电极单元(100),其特征在于,所述像素电极单元(100)还包括黄色子像素(100Y),所述黄色子像素(100Y)仅具有黄色像素主区(101Y)。
6.根据权利要求1所述的像素电极单元(100),其特征在于,所述像素电极单元(100)还包括白色子像素(100W),所述白色子像素(100W)仅具有白色像素主区(101W)。
7.一种显示面板(1000),其特征在于,所述显示面板(1000)包括第一基板(11)、第二基板(12)及设于第一基板(11)与第二基板(12)之间的负性液晶(14),在第一基板(11)上形成有公共电极(15),在第二基板(12)上形成有像素电极(13),所述像素电极(13)由多个像素电极单元(100)阵列而成,所述像素电极单元(100)包括以行排列的红色子像素(100R)、绿色子像素(100G)及蓝色子像素(100B),所述绿色子像素(100G)具有绿色像素主区(101G)及绿色像素辅区(102G),所述蓝色子像素(100B)仅具有蓝色像素主区(101B)。
8.根据权利要求7所述的显示面板(1000),其特征在于,所述红色子像素(100R)具有红色像素主区(101R)及红色像素辅区(102R)。
9.根据权利要求7所述的显示面板(1000),其特征在于,所述红色子像素(100R)仅具有红色像素主区(101R)。
10.根据权利要求7所述的显示面板(1000),其特征在于,所述绿色像素主区(101G)在所述绿色子像素(100G)中所占面积小于及所述绿色像素辅区(102G)在所述绿色子像素(100G)中所占面积。
CN201410158085.6A 2014-04-18 2014-04-18 一种像素电极单元及显示面板 Pending CN103901682A (zh)

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