CN105629562A - 液晶显示面板 - Google Patents

液晶显示面板 Download PDF

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Publication number
CN105629562A
CN105629562A CN201610154473.6A CN201610154473A CN105629562A CN 105629562 A CN105629562 A CN 105629562A CN 201610154473 A CN201610154473 A CN 201610154473A CN 105629562 A CN105629562 A CN 105629562A
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China
Prior art keywords
pixel electrode
display region
display
liquid crystal
permeation
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CN201610154473.6A
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崔宏青
钟新辉
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Wuhan China Star Optoelectronics Technology Co Ltd
TCL China Star Optoelectronics Technology Co Ltd
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Shenzhen China Star Optoelectronics Technology Co Ltd
Wuhan China Star Optoelectronics Technology Co Ltd
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Application filed by Shenzhen China Star Optoelectronics Technology Co Ltd, Wuhan China Star Optoelectronics Technology Co Ltd filed Critical Shenzhen China Star Optoelectronics Technology Co Ltd
Priority to CN201610154473.6A priority Critical patent/CN105629562A/zh
Priority to US15/116,217 priority patent/US20180052360A1/en
Priority to PCT/CN2016/078767 priority patent/WO2017156811A1/zh
Publication of CN105629562A publication Critical patent/CN105629562A/zh
Pending legal-status Critical Current

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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
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  • General Physics & Mathematics (AREA)
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  • Spectroscopy & Molecular Physics (AREA)

Abstract

本发明提供一种液晶显示面板，其包括射显示区以及反射显示区；其中透射显示区包括上衬底基板、上偏光板、彩色滤光片、下衬底基板、下偏光板、第一像素电极以及液晶层；反射显示区包括上衬底基板、半波片、上偏光板、彩色滤光片、公共电极、下衬底基板、下偏光板、第二像素电极以及液晶层。本发明的液晶显示面板的光反射率高且画面色彩显示效果较好。

Description

液晶显示面板
技术领域
本发明涉及液晶显示技术领域，特别涉及一种液晶显示面板。
背景技术
随着穿戴式设备如智能手表、智能眼镜等产品和应用的逐渐兴起，在电池电量一定的情况下，显示器的能耗问题将极大影响产品整体的续航能力，所以开发出低能耗且性能优越的显示器变得越来越重要。
通过对人们使用液晶显示面板的用途及习惯进行分析后得出，高性能显示器(高分辨率、高对比、高色域等)是必要的；但是某些的应用场景下，可以选择显示效果相对较弱但耗电低的替代显示方案。
换句话说，在观看视频和图像等情况下可以使用高性能的液晶显示面板，以提供给用户鲜艳明亮的视觉享受；而当电池电量较低、或者仅仅需要观看文字等内容信息的时候，则可启动液晶显示面板的省电显示模式，在该模式下液晶显示面板即可进行必要内容的显示，又可延长电池的续航时间。但是上述液晶显示面板的制作成本较高且省电显示模式的节能效果依然较差。
故，有必要提供一种液晶显示面板，以解决现有技术所存在的问题。
发明内容
有鉴于此，本发明提供一种光反射率高且显示画面的色彩显示效果较好的液晶显示面板；以解决现有的液晶显示面板容易出现光反射率较低且画面混色不良的技术问题。
本发明实施例提供一种液晶显示面板，其包括透射显示区以及反射显示区；
其中所述透射显示区包括：
上衬底基板；
上偏光片，设置在所述上衬底基板的外侧，用于过滤预设偏振态的第一出射光；
彩色滤光片，设置在所述上衬底基板的内侧，用于过滤预设颜色波长的第一出射光；
下衬底基板；
下偏光板，设置在所述下衬底基板的外侧，用于过滤预设偏振态的第一入射光；
第一像素电极，设置在所述下衬底基板的内侧，用于提供第一驱动电压以及公共电压；以及
液晶层，设置在所述彩色滤光片和所述第一像素电极之间，用于将所述第一入射光进行偏转，形成第一出射光；
所述反射显示区包括：
所述上衬底基板；
半波片，设置在所述上衬底基板的外侧，用于改变第二出射光的偏振态；
所述上偏光片，还设置在所述半波片的外侧，用于过滤预设偏振态的第二出射光；
所述彩色滤光片；
公共电极，设置在所述彩色滤光片的内侧，用于提供公共电压；
所述下衬底基板；
所述下偏光板；
第二像素电极，设置在所述下衬底基板的内侧，用于提供第二驱动电压并用于反射外界环境光；以及
所述液晶层，还设置在所述彩色滤光片和所述第二像素电极之间，用于将所述第二入射光进行偏转，形成第二出射光。
在本发明所述的液晶显示面板中，所述液晶显示面板的透射显示区的显示模式为IPS显示模式或FFS显示模式；所述液晶显示面板的反射显示区的显示模式为ECB显示模式。
在本发明所述的液晶显示面板中，如所述液晶显示面板的透射显示区的显示模式为FFS显示模式；则所述第一像素电极包括提供第一驱动电压的第一子像素电极以及用于提供公共电压的第二子像素电极，所述第一子像素电极和所述第二子像素电极间隔设置；
如所述液晶显示面板的透射显示区的显示模式为IPS显示模式；则所述第一像素电极包括提供第一驱动电压的第一子像素电极以及用于提供公共电压的第二子像素电极，所述第一子像素电极间隔设置在所述第一像素电极的第一电极层；所述第二子像素电极设置在所述第一像素电极的第二电极层，所述第一电极层和第二电极层通过绝缘层隔离。
在本发明所述的液晶显示面板中，所述透射显示区还包括第一平坦层，所述第一平坦层设置在所述彩色滤光片和所述液晶层之间；
所述反射显示区还包括第二平坦层，所述第二平坦层设置在所述彩色滤光片和所述公共电极之间。
在本发明所述的液晶显示面板中，所述透射显示区还包括第一配向层，所述第一配向层设置在所述第一平坦层和所述液晶层之间、以及所述液晶层和所述第一像素电极之间；
所述反射显示区还包括第二配向层，所述第二配向层设置在所述第二平坦层和所述液晶层之间、以及所述液晶层和所述第二像素电极之间。
在本发明所述的液晶显示面板中，所述透射显示区的液晶层的厚度大于所述反射显示区的液晶层的厚度。
在本发明所述的液晶显示面板中，所述半波片的快轴方向与所述上偏光板的穿透轴方向的夹角为22.5度。
在本发明所述的液晶显示面板中，所述透射显示区的所述彩色滤光片之间还设置有黑色矩阵。
在本发明所述的液晶显示面板中，所述透射显示区还包括用于提供所述第一入射光的第一光源；所述反射显示区还包括用于提供所述第二入射光的第二光源。
在本发明的液晶显示面板中，所述液晶显示面板包括一透射显示区以及一反射显示区，所述反射显示区设置在所述透射显示区的上方。
本发明的液晶显示面板通过透射显示区和反射显示区的设置，在节能状态下可充分利用外界环境光，因此光反射率较高，且彩色画面显示效果较高；解决了现有的液晶显示面板容易出现光反射率较低且画面混色不良的技术问题。
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，下面对实施例中所需要使用的附图作简单的介绍。下面描述中的附图仅为本发明的部分实施例，对于本领域普通技术人员而言，在不付出创造性劳动的前提下，还可以根据这些附图获取其他的附图。
图1为本发明的液晶显示面板的优选实施例的结构示意图；
图2为图1的A部分的局部放大图；
图3为沿图2的B-B’截面线的截面图；
图4为本发明的液晶显示面板的第一像素电极的结构示意图之一；
图5为本发明的液晶显示面板的第一像素电极的结构示意图之二。
具体实施方式
请参照附图中的图式，其中相同的组件符号代表相同的组件。以下的说明是基于所例示的本发明具体实施例，其不应被视为限制本发明未在此详述的其它具体实施例。
请参照图1-图3，图1为本发明的液晶显示面板的优选实施例的结构示意图；图2为图1的A部分的局部放大图；3为沿图2的B-B’截面线的截面图。
如图1和图2所示，本优选实施例的液晶显示面板包括透射显示区以及反射显示区，其中透射显示区通过背光源的光线透射进行画面显示，反射显示区通过外界环境光的反射或背光源的光线透射进行画面显示。在本优选实施例中该液晶显示面板包括一透射显示区以及一反射显示区，反射显示区设置在透射显示区的上方。其中图2中的R1为反射显示区的红色像素，B1为反射显示区的蓝色像素，G1为反射显示区的绿色像素；R2为透射显示区的红色像素，B2为透射显示区的蓝色像素，G2为透射显示区的绿色像素。
请参照图3，液晶显示面板的透射显示区包括上衬底基板301、上偏光片302、彩色滤光片303、下衬底基板304、下偏光片305、第一像素电极306、液晶层307、第一平坦层308、第一配向层309、第一光源(图中未示出)以及黑色矩阵310。
上偏光片302设置在上衬底基板301的外侧，用于过滤预设偏振态的第一出射光；彩色滤光片303设置在上衬底基板301的内侧，用于过滤预设颜色波长的第一出射光；下偏光板305设置在下衬底基板304的外侧，用于过滤预设偏振态的第一入射光；第一像素电极306设置在下衬底基板304的内侧，用于提供第一驱动电压以及公共电压；液晶层307设置在彩色滤光片303和第一像素电极306之间，用于将第一入射光进行偏转，形成第一出射光。
第一平坦层308设置在彩色滤光片303和液晶层307之间，用于对彩色滤光片303的内侧表面进行平坦化处理。第一配向层309设置在第一平坦层308和液晶层307、以及液晶层307和第一像素电极306之间，用于对透射显示区中的液晶层307中的液晶分子进行配向处理。第一光源用于提供第一入射光。黑色矩阵310用于隔离不同颜色的彩色滤光片。
液晶显示面板的反射显示区包括上衬底基板301、半波片311、上偏光片302、彩色滤光片303、公共电极312、下衬底基板304、下偏光板305、第二像素电极313、液晶层307、第二平坦层314以及第二配向层315。
半波片311设置在上衬底基板301的外侧，用于改变第二出射光的偏振态；上偏光片302还设置在半波片311的外侧，用于过滤预设偏振态的第二出射光；公共电极312设置在彩色滤光片303的内侧，用于提供公共电压；第二像素电极313设置在下衬底基板304的内侧，用于提供第二驱动电压并用于反射外界环境光；液晶层307还设置在彩色滤光片303和第二像素电极313之间，用于将第二入射光进行偏转，形成第二出射光。
第二平坦层314设置在彩色滤光片303和公共电极312之间，用于对彩色滤光片303的内侧表面进行平坦化处理。第二配向层315设置在第二平坦层314和液晶层307、以及液晶层307和第二像素电极313之间，用于对反射显示区中的液晶层307中的液晶分子进行配向处理。
其中透射显示区的液晶层307的厚度大于反射显示区的液晶层307的厚度，如透射显示区的液晶层307的厚度为反射显示区的液晶层307的厚度的两倍，使得透射显示区和反射显示区的显示效果差异较小。反射显示区的半波片311的快轴方向与上偏光板302的穿透轴方向的夹角为22.5度。
本优选实施例的液晶显示面板的透射显示区的显示模式为FFS(FringeFieldSwitching，边缘场开关技术)显示模式或IPS(In-PlaneSwitching，平面转换屏幕技术)显示模式。液晶显示面板的反射显示区的显示模式为ECB(electricallycontrolledbirefringence，电控双折射)显示模式。
如液晶显示面板的透射显示区的显示模式为FFS显示模式，则第一像素电极406的结构如图4所示，该第一像素电极406包括提供第一驱动电压的第一子像素电极4061以及用于提供公共电压的第二子像素电极4062，第一子像素电极4061和第二子像素电极4062间隔设置。
如液晶显示面板的透射显示区的显示模式为IPS显示模式，则第一像素电极506的结构如图5所示，该第一像素电极506包括提供第一驱动电压的第一子像素电极5061以及用于提供公共电压的第二子像素电极5062，第一子像素电极5061间隔设置在第一像素电极506的第一电极层，第二子像素电极5062设置在第一像素电极506的第二电极层，第一电极层和第二电极层通过绝缘层5063隔离。
本优选实施例的液晶显示面板使用时，当该液晶显示面板处于高性能显示模式时，液晶显示面板的透射显示区进行工作，第一像素电极306输入第一驱动电压以及公共电压，即：第一光源提供第一入射光，第一入射光通过下偏光板305转换为预设偏振态的第一入射光；预设偏振态的第一入射光通过液晶层307进行偏转，随后通过彩色滤光片303转换为预设颜色波长的第一出射光，最后预设偏振态的第一出射光通过上偏光片302出射，实现了彩色画面的显示；液晶显示面板的透射显示区处于亮态。
液晶显示面板的反射显示区处于非工作状态，第二像素电极313和公共电极312未输入信号。液晶显示面板的反射显示区的外界环境光通过上偏光板302转换为预设偏振态的外界环境光，如90度的线偏振光；预设偏振态的外界环境光随后通过半波片311(半波片311的快轴方向为67.5度)后偏振方向旋转45度，如45度的线偏振光；随后外界环境光经液晶层307、第二像素电极313进行反射形成第二入射光；第二入射光再次通过液晶层307后形成第二出射光，第二出射光的偏振角度为135度。第二出射光通过彩色滤光片303转换为预设颜色波长的第二出射光，最后预设颜色波长的第二出射光通过半波片311后，形成0度的第二出射光，被上偏光板302阻挡，液晶显示面板的反射显示区呈现暗态，即液晶显示面板的反射显示区为常黑显示模式。
当液晶显示面板处于节能显示模式时，液晶显示面板的反射显示区进行工作，即：
第二像素电极313输入第二驱动电压，公共电极312输入公共电压。外界环境光通过上偏光板302转换为预设偏振态的外界环境光，如90度的线偏振光；预设偏振态的外界环境光随后通过半波片311(半波片311的快轴方向为67.5度)后偏振方向旋转45度，如45度的线偏振光；随后外界环境光通过液晶层307(此时液晶分子垂直排列，无各项异性)后，通过第二像素电极313进行反射形成第二入射光；第二入射光再次通过液晶层307形成第二出射光。第二出射光通过彩色滤光片303转换为预设颜色波长的第二出射光，最后预设颜色波长的第二出射光通过半波片311后，形成90度的第二出射光，可从上偏光板302射出，实现了彩色画面的显示；液晶显示面板的反射显示区呈现亮态。
液晶显示面板的透射显示区处于非工作状态，第一像素电极306未输入信号。这时第一光源不发出第一入射光，液晶显示面板的透射显示区处于暗态，即液晶显示面板的透射显示区为常黑显示模式。
优选的，该液晶显示面板还可包括用于提供第二入射光的第二光源(图中未示出)，当液晶显示面板处于节能显示模式时，如外界环境光的亮度较低，这时可使用第二光源给反射显示区直接提供第二入射光。
本发明的液晶显示面板通过透射显示区和反射显示区的设置，在节能状态下可充分利用外界环境光，因此光反射率较高，且彩色画面显示效果较高；解决了现有的液晶显示面板容易出现光反射率较低且画面混色不良的技术问题。
综上所述，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，包括透射显示区以及反射显示区；
其中所述透射显示区包括：
上衬底基板；
上偏光片，设置在所述上衬底基板的外侧，用于过滤预设偏振态的第一出射光；
彩色滤光片，设置在所述上衬底基板的内侧，用于过滤预设颜色波长的第一出射光；
下衬底基板；
下偏光板，设置在所述下衬底基板的外侧，用于过滤预设偏振态的第一入射光；
第一像素电极，设置在所述下衬底基板的内侧，用于提供第一驱动电压以及公共电压；以及
液晶层，设置在所述彩色滤光片和所述第一像素电极之间，用于将所述第一入射光进行偏转，形成第一出射光；
所述反射显示区包括：
所述上衬底基板；
半波片，设置在所述上衬底基板的外侧，用于改变第二出射光的偏振态；
所述上偏光片，还设置在所述半波片的外侧，用于过滤预设偏振态的第二出射光；
所述彩色滤光片；
公共电极，设置在所述彩色滤光片的内侧，用于提供公共电压；
所述下衬底基板；
所述下偏光板；
第二像素电极，设置在所述下衬底基板的内侧，用于提供第二驱动电压并用于反射外界环境光；以及
所述液晶层，还设置在所述彩色滤光片和所述第二像素电极之间，用于将所述第二入射光进行偏转，形成第二出射光。
2.根据权利要求1所述的液晶显示面板，其特征在于，所述液晶显示面板的透射显示区的显示模式为IPS显示模式或FFS显示模式；所述液晶显示面板的反射显示区的显示模式为ECB显示模式。
3.根据权利要求2所述的液晶显示面板，其特征在于，
如所述液晶显示面板的透射显示区的显示模式为FFS显示模式；则所述第一像素电极包括提供第一驱动电压的第一子像素电极以及用于提供公共电压的第二子像素电极，所述第一子像素电极和所述第二子像素电极间隔设置；
如所述液晶显示面板的透射显示区的显示模式为IPS显示模式；则所述第一像素电极包括提供第一驱动电压的第一子像素电极以及用于提供公共电压的第二子像素电极，所述第一子像素电极间隔设置在所述第一像素电极的第一电极层；所述第二子像素电极设置在所述第一像素电极的第二电极层，所述第一电极层和第二电极层通过绝缘层隔离。
4.根据权利要求1所述的液晶显示面板，其特征在于，
所述透射显示区还包括第一平坦层，所述第一平坦层设置在所述彩色滤光片和所述液晶层之间；
所述反射显示区还包括第二平坦层，所述第二平坦层设置在所述彩色滤光片和所述公共电极之间。
5.根据权利要求4所述的液晶显示面板，其特征在于，
所述透射显示区还包括第一配向层，所述第一配向层设置在所述第一平坦层和所述液晶层之间、以及所述液晶层和所述第一像素电极之间；
所述反射显示区还包括第二配向层，所述第二配向层设置在所述第二平坦层和所述液晶层之间、以及所述液晶层和所述第二像素电极之间。
6.根据权利要求1所述的液晶显示面板，其特征在于，所述透射显示区的液晶层的厚度大于所述反射显示区的液晶层的厚度。
7.根据权利要求1所述的液晶显示面板，其特征在于，所述半波片的快轴方向与所述上偏光板的穿透轴方向的夹角为22.5度。
8.根据权利要求1所述的液晶显示面板，其特征在于，所述透射显示区的所述彩色滤光片之间还设置有黑色矩阵。
9.根据权利要求1所述的液晶显示面板，其特征在于，所述透射显示区还包括用于提供所述第一入射光的第一光源；所述反射显示区还包括用于提供所述第二入射光的第二光源。
10.根据权利要求1所述的液晶显示面板，其特征在于，所述液晶显示面板包括一透射显示区以及一反射显示区，所述反射显示区设置在所述透射显示区的上方。
CN201610154473.6A 2016-03-17 2016-03-17 液晶显示面板 Pending CN105629562A (zh)

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