CN105259706B - 反射式液晶显示面板和显示装置 - Google Patents

反射式液晶显示面板和显示装置 Download PDF

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CN105259706B
CN105259706B CN201510852028.2A CN201510852028A CN105259706B CN 105259706 B CN105259706 B CN 105259706B CN 201510852028 A CN201510852028 A CN 201510852028A CN 105259706 B CN105259706 B CN 105259706B
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liquid crystal
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CN105259706A (zh
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谢畅
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Wuhan China Star Optoelectronics Technology Co Ltd
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Priority to US14/898,841 priority patent/US9891468B2/en
Priority to PCT/CN2015/096265 priority patent/WO2017088203A1/zh
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Abstract

本发明公开了一种反射式液晶显示面板，包括：间隔设置的第一基板和第二基板；液晶层，设置在第一基板和第二基板之间；公共电极层，设置在第一基板面向液晶层的一侧；散射层，设置在公共电极层面向液晶层的一侧；镜面反射层，设置在第二基板面向液晶层的一侧；其中，经由第一基板、公共电极层入射的光线在散射层发生散射，且散射后的光线经由液晶层入射至镜面反射层时发生镜面反射。本发明还公开一种显示装置。通过上述方式，本发明的反射式液晶显示面板能够实现漫反射效果，且能够降低制造成本。

Description

反射式液晶显示面板和显示装置
技术领域
本发明涉及液晶技术领域，特别是涉及一种反射式液晶显示面板和包括该反射式液晶显示面板的显示装置。
背景技术
现有的显示装置包括透射式显示装置、反射式显示装置和透反式显示装置。透射式显示装置主要以背光源作为光源，即透射式显示装置的显示面板后面需要设置背光源为显示面板提供光源，但其背光源利用率不高，为提高显示亮度就需要大幅度提高背光源的亮度，因此能耗高。
而反射式显示装置主要是以前光源或者外界光源作为光源，即反射式显示装置的显示面板后面不需要设置有背光源，其主要利用外部光源为显示面板提供光源，功耗相对较低。如图1所示，反射式显示装置的显示面板一般由彩色滤光阵列基板10和薄膜晶体管阵列基板11对盒形成，两个基板之间的空间中封装有液晶层13，以及设置在薄膜晶体管阵列基板11上的反射层12。为了使观看者能在各个视角都能观看到均匀的反射效果，反射层12需要设计为漫反射的反射方式，因此反射层12设计为凹凸表面的微结构，来实现漫反射，具体地，反射层12包括凹凸状的金属层121和凹凸状的树脂层122。
然而，在制程过程中，需先在反射区制作一层树脂层122基底，再在树脂层122上进行曝光、显影和刻蚀处理，使得在树脂层122基底上形成凹凸表面，而该工序需要增加一道曝光处理；最后在树脂层122基底上的凹凸表面上溅射金属以形成金属层121，从而形成具有凹凸表面的反射层。也就是说，在现有技术中，制作凹凸表面的微结构的工艺时，需要增加额外的一道曝光处理工艺，需要增加额外的制造成本。
综上所述，有必要提供一种反射式液晶显示面板和包括该反射式液晶显示面板的显示装置以解决上述问题。
发明内容
本发明主要解决的技术问题是提供一种反射式液晶显示面板和显示装置，能够降低制造成本。
为解决上述技术问题，本发明采用的一个技术方案是：提供一种反射式液晶显示面板，包括：间隔设置的第一基板和第二基板；液晶层，设置在第一基板和第二基板之间；公共电极层，设置在第一基板面向液晶层的一侧；散射层，设置在公共电极层面向液晶层的一侧；镜面反射层，设置在第二基板面向液晶层的一侧；其中，经由第一基板、公共电极层入射的光线在散射层发生散射，且散射后的光线经由液晶层入射至镜面反射层时发生镜面反射。
其中，镜面反射层为金属层。
其中，金属层作为反射式液晶显示面板的像素电极层。
其中，金属层的材料为银或铝。
其中，散射层为加入散射粒子的透明薄膜。
其中，透明薄膜的材料为树脂、聚乙烯或聚氯乙烯。
其中，液晶显示面板进一步包括彩膜偏光片，彩膜偏光片设置在第一基板的背向液晶层的一侧。
其中，第一基板为彩色滤光阵列基板，第二基板为薄膜晶体管阵列基板。
为解决上述技术问题，本发明采用的另一个技术方案是：提供一种显示装置，其包括上述任一项的反射式液晶显示面板。
本发明的有益效果是：区别于现有技术的情况，本发明的反射式液晶显示面板包括：间隔设置的第一基板和第二基板；液晶层，设置在第一基板和第二基板之间；公共电极层，设置在第一基板面向液晶层的一侧；散射层，设置在公共电极层面向液晶层的一侧；镜面反射层，设置在第二基板面向液晶层的一侧。通过上述方式，经由第一基板、公共电极层入射的光线在散射层发生散射，且散射后的光线经由液晶层入射至镜面反射层时发生镜面反射，能够通过散射层和镜面反射层实现漫反射效果，有效降低制造成本。
附图说明
图1是现有技术中反射式显示装置的结构示意图；
图2是本发明中反射式液晶显示面板的结构示意图。
具体实施方式
下面结合附图和实施方式对本发明进行详细说明。
本发明公开一种显示装置，该显示装置为反射式显示装置。其中，该反射式显示装置包括反射式液晶显示面板。如图2所示，图2是本发明中反射式液晶显示面板的结构示意图。反射式液晶显示面板包括彩膜偏光片21、第一基板22、公共电极层23、散射层24、液晶层25、镜面反射层26和第二基板27。
彩膜偏光片21设置在第一基板22的背向液晶层25的一侧。
第一基板22和第二基板27间隔设置。在本实施例中，第一基板22为彩色滤光阵列基板，第二基板27为薄膜晶体管阵列基板。
液晶层25设置在第一基板22和第二基板27之间。
公共电极层23设置在第一基板22面向液晶层25的一侧。
散射层24设置在公共电极层23面向液晶层25的一侧。在本实施例中，散射层24可以使光线产生漫反射效果。其中，散射层24为加入散射粒子的透明薄膜，具体地，透明薄膜不导电，其材料为树脂、聚乙烯或聚氯乙烯。当然，在其他实施例中，散射层24还可以是其他具有散射功能的透明层。应理解，散射层24的表面为平面，能够通过其内部的散射粒子对光线进行散射，从而能够实现漫反射效果。
镜面反射层26设置在第二基板27面向液晶层25的一侧，也就是说，液晶层25设置在散射层24和镜面反射层26之间。
在本实施例中，经由彩膜偏光片21、第一基板22、公共电极层23入射的光线在散射层24发生散射，且散射后的光线经由液晶层25入射至镜面反射层26时发生镜面反射。也就是说，镜面反射层26的表面为平面，具有反射光线的功能。
进一步地，镜面反射层26为金属层，该金属层作为反射式液晶显示面板的像素电极层。由此可知，镜面反射层26既能达到将光线反射作用，还能作为像素电极层为液晶层25提供电压，即，在制程过程中，只需要一道工艺就可以制得具有反射功能又能作为像素电极层的镜面反射层26，节省制作成本。优选地，金属层的材料为银、铜或铝。
举例而言，光线n1、n2、n3、n4经彩膜偏光片21、第一基板22、公共电极层23入射在散射层24发生第一次散射，且散射后的光线n1、n2、n3、n4经由液晶层25入射至镜面反射层26时发生镜面反射，反射后的光线n1、n2、n3、n4再次入射在散射层24内发生第二次散射。由此可知，光线n1、n2、n3、n4会在散射层24和反射层26之间进行多次的散射和反射，从而可以进一步达到光线均匀效果。
综上，本发明的反射式液晶显示面板包括：间隔设置的第一基板和第二基板；液晶层，设置在第一基板和第二基板之间；公共电极层，设置在第一基板面向液晶层的一侧；散射层，设置在公共电极层面向液晶层的一侧；镜面反射层，设置在第二基板面向液晶层的一侧。通过上述方式，经由第一基板、公共电极层入射的光线在散射层发生散射，且散射后的光线经由液晶层入射至镜面反射层时发生镜面反射，能够通过散射层和镜面反射层实现漫反射效果，有效降低制造成本。
以上所述仅为本发明的实施方式，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (7)

1.一种反射式液晶显示面板，其特征在于，包括：
间隔设置的第一基板和第二基板；
液晶层，设置在所述第一基板和所述第二基板之间；
公共电极层，设置在所述第一基板面向所述液晶层的一侧；
散射层，设置在所述公共电极层面向所述液晶层的一侧；
镜面反射层，设置在所述第二基板面向所述液晶层的一侧；
其中，经由所述第一基板、所述公共电极层入射的光线在所述散射层发生散射，且散射后的光线经由所述液晶层入射至所述镜面反射层时发生镜面反射；
所述镜面反射层为金属层，所述金属层作为所述反射式液晶显示面板的像素电极层。
2.根据权利要求1所述的反射式液晶显示面板，其特征在于，所述金属层的材料为银或铝。
3.根据权利要求1所述的反射式液晶显示面板，其特征在于，所述散射层为加入散射粒子的透明薄膜。
4.根据权利要求3所述的反射式液晶显示面板，其特征在于，所述透明薄膜的材料为树脂、聚乙烯或聚氯乙烯。
5.根据权利要求1所述的反射式液晶显示面板，其特征在于，所述液晶显示面板进一步包括彩膜偏光片，所述彩膜偏光片设置在所述第一基板的背向所述液晶层的一侧。
6.根据权利要求1所述的反射式液晶显示面板，其特征在于，所述第一基板为彩色滤光阵列基板，所述第二基板为薄膜晶体管阵列基板。
7.一种显示装置，其特征在于，所述显示装置包括如权利要求1-6任一项所述的反射式液晶显示面板。
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