CN103676364A - 显示面板 - Google Patents

显示面板 Download PDF

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CN103676364A
CN103676364A CN201310714129.4A CN201310714129A CN103676364A CN 103676364 A CN103676364 A CN 103676364A CN 201310714129 A CN201310714129 A CN 201310714129A CN 103676364 A CN103676364 A CN 103676364A
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liquid crystal
sub
crystal panel
panel
display panel
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何振伟
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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 CN201310714129.4A priority Critical patent/CN103676364A/zh
Priority to PCT/CN2014/070849 priority patent/WO2015089930A1/zh
Priority to US14/370,231 priority patent/US9612491B2/en
Publication of CN103676364A publication Critical patent/CN103676364A/zh
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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL 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
    • G02F1/00—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
    • G02F1/01—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 for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—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 for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1347—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL 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
    • G02F1/00—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
    • G02F1/01—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 for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—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 for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1347—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells
    • G02F1/13471—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells in which all the liquid crystal cells or layers remain transparent, e.g. FLC, ECB, DAP, HAN, TN, STN, SBE-LC cells
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL 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
    • G02F1/00—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
    • G02F1/01—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 for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—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 for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133514—Colour filters
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL 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
    • G02F1/00—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
    • G02F1/01—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 for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—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 for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133528—Polarisers
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL 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
    • G02F1/00—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
    • G02F1/01—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 for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—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 for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/13363—Birefringent elements, e.g. for optical compensation
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL 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
    • G02F1/00—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
    • G02F1/01—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 for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—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 for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/136286—Wiring, e.g. gate line, drain line
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL 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
    • G02F1/00—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
    • G02F1/01—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 for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—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 for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/1368—Active matrix addressed cells in which the switching element is a three-electrode device
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL 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
    • G02F1/00—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
    • G02F1/01—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 for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—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 for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133528—Polarisers
    • G02F1/133531—Polarisers characterised by the arrangement of polariser or analyser axes
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL 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
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/12—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode
    • G02F2201/123—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode pixel
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL 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
    • G02F2203/00—Function characteristic
    • G02F2203/64—Normally black display, i.e. the off state being black
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL 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
    • G02F2203/00—Function characteristic
    • G02F2203/66—Normally white display, i.e. the off state being white

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  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

本发明实施例公开了一种显示面板，其包括层叠设置的第一子液晶面板、第二子液晶面板及背光模组。所述第一子液晶面板与第二子液晶面板具有相同的形状尺寸及像素设置。所述第一子液晶面板上的每个像素与第二子液晶面板上的每个像素相互对准。所述第一子液晶面板为常白型液晶面板。所述第二子液晶面板为常黑型液晶面板。所述背光模组射出的光线依次经过第一子液晶面板及第二子液晶面板的调制以显示图像。

Description

显示面板
技术领域
本发明涉及显示面板领域，尤其涉及一种反应时间快的显示面板。
背景技术
现有显示面板通常只有一层液晶分子，根据其驱动方式的不同区分为常白显示面板及常黑显示面板。然而单层液晶分子对驱动信号的上升反应时间与下降反应时间不对称，所述常白显示面板由不透光至透光的反应时间长于由透光至不透光的反应时间，而所述常黑显示面板由透光至不透光的反应时间会长于由不透光至透光的反应时间。所以，无论是常白显示面板还是常黑显示面板，其反应时间都无法达到最佳。
因此，需要提供能够解决上述问题的显示面板结构。
发明内容
为了解决上述技术问题，本发明提供了一种显示面板，其包括层叠设置的第一子液晶面板、第二子液晶面板及背光模组。所述第一子液晶面板与第二子液晶面板具有相同的形状尺寸及像素设置。所述第一子液晶面板上的每个像素与第二子液晶面板上的每个像素相互对准。所述第一子液晶面板为常白型液晶面板。所述第二子液晶面板为常黑型液晶面板。所述背光模组射出的光线依次经过第一子液晶面板及第二子液晶面板的调制以显示图像。
其中，所述第一子液晶面板及所述第二子液晶面板均包括彩色滤光片基板、上偏光片、下偏光片、液晶分子及薄膜晶体管基板。所述上偏光片设置在彩色滤光片基板上。所述下偏光片设置在薄膜晶体管基板上。所述液晶分子夹设在所述彩色滤光片基板与薄膜晶体管基板之间。
其中，所述第一子液晶面板的上偏光片的偏振方向与下偏光片的偏振方向相互垂直。
其中，所述第二子液晶面板的上偏光片的偏振方向与下偏光片的偏振方向相互平行。
其中，所述第二子液晶面板的上偏光片的偏振方向与下偏光片的偏振方向相互平行。
其中，所述薄膜晶体管基板上设置有沿第一方向延伸的多条扫描线、沿第二方向延伸的多条数据线、多个薄膜晶体管及像素电极。
其中，所述薄膜晶体管设置在每个像素单元内与扫描线与数据线相交处对应的地方。每个薄膜晶体管包括栅极、源极及漏极。所述栅极与扫描线相连。所述源极与数据线相连。所述漏极与位于像素单元内的像素电极相连。
其中，还包括设置于所述第一子液晶面板与所述第二子液晶面板之间的至少一异向性相位补偿膜。
其中，所述异向性相位补偿膜选自平行光轴相位补偿膜、垂直光轴相位补偿膜及其组合。
其中，所述平行光轴相位补偿膜的光轴方向与膜表面平行。所述垂直光轴相位补偿膜的光轴方向与膜表面垂直。
本发明所提供的显示面板通过搭配常白型液晶面板与常黑型液晶面板组成双层面板结构，以常黑型液晶显示面板提供较短的黑画面转换为白画面的反应时间，以常白型液晶显示面板提供较短的白画面转换为黑画面的反应时间而提高整个显示面板在显示时的反应时间。同时，通过在两个面板之间加入异向性相位补偿膜来限制角度偏离较大的光线从不正对的像素单元射出而改善显示面板的广视角显示效果。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1是本发明第一实施例所提供的显示面板的结构示意图；
图2是图1中的显示面板沿II-II线的剖视图；
图3是图1中的显示面板的局部剖视图；
图4是本发明第二实施例所提供的显示面板的剖视图；
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
请一并参阅图1、图2及图3所示，本发明第一实施例所提供显示面板1包括层叠设置的第一子液晶面板10、第二子液晶面板12及背光模组14。所述第一子液晶面板10与第二子液晶面板12具有相同的形状尺寸及像素设置。所述第一子液晶面板10上的每个像素与第二子液晶面板12上的每个像素相互对准。所述第一子液晶面板10为常白型液晶面板。所述第二子液晶面板12为常黑型液晶面板。所述背光模组14射出的光线依次经过第一子液晶面板10及第二子液晶面板12的调制以显示图像。
所述第一子液晶面板10与所述第二子液晶面板12的结构基本相同，均包括彩色滤光片基板100、上偏光片102、下偏光片104、液晶分子106及薄膜晶体管基板108。所述上偏光片102设置在彩色滤光片基板100上。所述下偏光片104设置在薄膜晶体管基板108上。所述液晶分子106夹设在所述彩色滤光片基板100与薄膜晶体管基板108之间。
所述薄膜晶体管基板108上设置有沿第一方向延伸的多条扫描线110、沿第二方向延伸的多条数据线112、多个薄膜晶体管114及像素电极116。所述扫描线110与数据线112纵横交错以定义出多个呈矩阵排列的像素单元118。所述薄膜晶体管114设置在每个像素单元118内与扫描线110与数据线112相交处对应的地方。每个薄膜晶体管114包括栅极1140、源极1142及漏极1144。所述栅极1140与扫描线110相连。所述源极1142与数据线112相连。所述漏极1144与位于像素单元118内的像素电极116相连。当所述薄膜晶体管114通过与扫描线110相连的栅极1140被选中时，所述薄膜晶体管114的源极1142与漏极1144导通。由所述数据线112传输过来的显示信号经源极1142与漏极1144传至像素电极116上用于驱动液晶分子106。
所述第一子液晶面板10的上偏光片102的偏振方向与下偏光片104的偏振方向相互垂直。当像素电极116未对液晶分子106施加电压时，经过下偏光片104的背光光线在穿过扭曲排列的液晶分子106后偏振方向旋转90度则正好从上偏光片102出射，使得第一子液晶面板10在未加电压时常白显示。当像素电极116对液晶分子106施加电压时，液晶分子106沿电场方向整齐排列而未对穿过的背光光线的偏振方向产生影响，使得经过下偏光片104的背光光线的偏振方向与上偏光片102的偏振方向相反而无法出射，此时的第一子液晶面板10显示黑的画面。
所述第二子液晶面板12的上偏光片102的偏振方向与下偏光片104的偏振方向相互平行。当像素电极116未对液晶分子106施加电压时，经过下偏光片104的背光光线在穿过扭曲排列的液晶分子106后偏振方向旋转90度正好与上偏光片102的偏振方向垂直而无法出射，使得第一子液晶面板10在未加电压时常黑显示。当像素电极116对液晶分子106施加电压时，液晶分子106沿电场方向整齐排列而未对穿过的背光光线的偏振方向产生影响，使得经过下偏光片104的背光光线的偏振方向与上偏光片102的偏振方向平行而出射，此时的第二子液晶面板12显示白的画面。
因为所述第一子液晶面板10为常白型液晶面板，其由黑画面转换为白画面的反应时间较长而由白画面转换为黑画面的反应时间较短。所述第二子液晶面板12为常黑性液晶面板，其由白画面转换为黑画面的反应时间较长而由黑画面转换为白画面的反应时间较短。所述第一子液晶面板10与第二子液晶面板12相互叠加时黑画面转换为白画面的反应时间由常黑型的第二子液晶显示面板提供，白画面转换为黑画面的反应时间由常白型的第一子液晶面板10提供。所以，本发明的显示面板与单独的常黑性液晶面板或常白型液晶面板相比具有更短的反应时间。
如图4所示，本发明第二实施例所提供的显示面板2的结构与第一实施例所提供的显示面板1的结构基本相同，其区别在于：所述显示面板2还包括设置于所述第一子液晶面板20与所述第二子液晶面板22之间的至少一异向性相位补偿膜24。所述异向性相位补偿膜24选自平行光轴相位补偿膜(A-Plate膜)、垂直光轴相位补偿膜(C-Plate膜)及其组合。所述平行光轴相位补偿膜的光轴方向与膜表面平行。所述垂直光轴相位补偿膜的光轴方向与膜表面垂直。
因为在所述第一子液晶面板20与第二子液晶面板22之间会存在一定间距，所以穿过位于下层的第一或第二子液晶面板20、22的光线在角度偏大时会经由位于上层的第一或第二子液晶面板20、22的不相互正对的相邻像素单元218射出，从而影响显示面板2在广视角范围内的显示效果。而通过在第一子液晶面板20与第二子液晶面板22之间加入异向性相位补偿膜24可使得显示光路中的光线因不同的相位延迟产生在空间中产生明暗分布的聚光干涉(Conoscopy)现象。利用此现象，依照像素单元218的大小调整所述异向性相位补偿膜24的厚度使得不正对的相邻像素单元218处于暗区域则可防止光线不正对的相邻像素单元218中射出，从而改善显示面板2的广视角性能。
本发明的显示面板1通过搭配常白型液晶面板与常黑型液晶面板组成双层面板结构，以常黑型液晶显示面板提供较短的黑画面转换为白画面的反应时间，以常白型液晶显示面板提供较短的白画面转换为黑画面的反应时间而提高整个显示面板在显示时的反应时间。同时，通过在两个面板之间加入异向性相位补偿膜来限制角度偏离较大的光线从不正对的像素单元118射出而改善显示面板的广视角显示效果。
以上所揭露的仅为本发明一种较佳实施例而已，当然不能以此来限定本发明之权利范围，因此依本发明权利要求所作的等同变化，仍属本发明所涵盖的范围。

Claims (10)

1.一种显示面板(1)，其包括层叠设置的第一子液晶面板(10)、第二子液晶面板(12)及背光模组(14)，所述第一子液晶面板(10)与第二子液晶面板(12)具有相同的形状尺寸及像素设置，所述第一子液晶面板(10)上的每个像素与第二子液晶面板(12)上的每个像素相互对准，所述第一子液晶面板(10)为常白型液晶面板，所述第二子液晶面板(12)为常黑型液晶面板，所述背光模组(14)射出的光线依次经过第一子液晶面板(10)及第二子液晶面板(12)的调制以显示图像。
2.如权利要求1所述的显示面板(1)，其特征在于，所述第一子液晶面板(10)及所述第二子液晶面板(12)均包括彩色滤光片基板(100)、上偏光片(102)、下偏光片(104)、液晶分子(106)及薄膜晶体管基板(108)，所述上偏光片(102)设置在彩色滤光片基板(100)上，所述下偏光片(104)设置在薄膜晶体管基板(108)上，所述液晶分子(106)夹设在所述彩色滤光片基板(100)与薄膜晶体管基板(108)之间。
3.如权利要求2所述的显示面板(1)，其特征在于，所述第一子液晶面板(10)的上偏光片(102)的偏振方向与下偏光片(104)的偏振方向相互垂直。
4.如权利要求2所述的显示面板(1)，其特征在于，所述第二子液晶面板(12)的上偏光片(102)的偏振方向与下偏光片(104)的偏振方向相互平行。
5.如权利要求2所述的显示面板(1)，其特征在于，所述第二子液晶面板(12)的上偏光片(102)的偏振方向与下偏光片(104)的偏振方向相互平行。
6.如权利要求2所述的显示面板(1)，其特征在于，所述薄膜晶体管基板(108)上设置有沿第一方向延伸的多条扫描线(110)、沿第二方向延伸的多条数据线(112)、多个薄膜晶体管(114)及像素电极(116)。
7.如权利要求6所述的显示面板(1)，其特征在于，所述薄膜晶体管(114)设置在每个像素单元(118)内与扫描线(110)与数据线(112)相交处对应的地方，每个薄膜晶体管(114)包括栅极(1140)、源极(1142)及漏极(1144)，所述栅极(1140)与扫描线(110)相连，所述源极(1142)与数据线(112)相连，所述漏极(1144)与位于像素单元(118)内的像素电极(116)相连。
8.如权利要求1所述的显示面板(1)，其特征在于，还包括设置于所述第一子液晶面板(10)与所述第二子液晶面板(12)之间的至少一异向性相位补偿膜(24)。
9.如权利要求8所述的显示面板(1)，其特征在于，所述异向性相位补偿膜(24)选自平行光轴相位补偿膜(A-Plate膜)、垂直光轴相位补偿膜(C-Plate膜)及其组合。
10.如权利要求9所述的显示面板（1），其特征在于，所述平行光轴相位补偿膜的光轴方向与膜表面平行，所述垂直光轴相位补偿膜的光轴方向与膜表面垂直。
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