CN105334678A - 一种双盒va型液晶显示器及其制造工艺 - Google Patents

一种双盒va型液晶显示器及其制造工艺 Download PDF

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CN105334678A
CN105334678A CN201510783808.6A CN201510783808A CN105334678A CN 105334678 A CN105334678 A CN 105334678A CN 201510783808 A CN201510783808 A CN 201510783808A CN 105334678 A CN105334678 A CN 105334678A
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陈绍军
王世海
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YASHI PHOTOELECTRIC CO Ltd
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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
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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
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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
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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
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    • G02F1/133784Surface-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 rubbing
    • 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
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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
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Abstract

本发明涉及一种双盒VA型液晶显示器及其制造工艺,所述双盒VA型液晶显示器包括自上而下设置的上偏光片、上液晶盒、胶水、下液晶盒和下偏光片,所述上液晶盒、下液晶盒分别由自上而下设置的上玻璃基板、上ITO层、上PI取向层、液晶层、下PI取向层、下ITO层和下玻璃基板组成,其中液晶层通过边框胶和封口胶封闭在上PI取向层和下PI取向层之间;上、下2个液晶盒摩擦后形成的视角方向相反。本发明通过采用LCD双盒结构及浮动显示技术,可同时达到提高显示内容数量及拓宽视角范围的目的,实现全视角显示效果;其制造工艺简单,并可利用现有生产线进行生产。

Description

一种双盒VA型液晶显示器及其制造工艺
技术领域
本发明涉及显示器及制造技术领域,尤其涉及一种可应用于显示内容为笔段图案显示图形的双盒VA型液晶显示器及其制造工艺。
背景技术
近年来,液晶显示器已被广泛应用于国民经济和国防安全的诸多领域,随着科学技术和人类生活水平的不断发展,传统VA类液晶显示器基于其显示原理,在显示效果和显示内容数量上还是存在较大限制。为了提升VA类液晶显示器显示效果和提高显示内容含量,通常采用提高驱动路数及增加像素密度的方法,但效果仍然不是十分理想。
发明内容
本发明提供了一种双盒VA型液晶显示器及其制造工艺,通过采用LCD双盒结构及浮动显示技术,可同时达到提高显示内容数量及拓宽视角范围的目的,实现全视角显示效果;其制造工艺简单,并可利用现有生产线进行生产。
为了达到上述目的,本发明采用以下技术方案实现:
一种双盒VA型液晶显示器,包括自上而下设置的上偏光片、上液晶盒、胶水、下液晶盒和下偏光片,所述上液晶盒、下液晶盒分别由自上而下设置的上玻璃基板、上ITO层、上PI取向层、液晶层、下PI取向层、下ITO层和下玻璃基板组成,其中液晶层通过边框胶和封口胶封闭在上PI取向层和下PI取向层之间;上、下2个液晶盒摩擦后形成的视角方向相反。
所述上液晶盒的下玻璃基板及下液晶盒的上玻璃基板的厚度≤0.55mm,上液晶盒的上玻璃基板及下液晶盒的下玻璃基板厚度范围为0.55mm~1.1mm。
所述上偏光片和下偏光片均为复合膜偏光片,由偏振度大于99%以上的高偏振度防眩光偏光片或高偏振度眩光偏光片作为基片,与Re补偿值在220~880nm、Rth补偿值在0~100nm的复合补偿膜复合而成。
所述液晶层中,衬垫料以密度范围为每平方毫米60~180个均匀分布,周围由液晶填充;液晶层为垂直排列向列型,厚度范围为3.0μm~6.0μm。
所述上ITO层和下ITO层的方阻范围为7Ω/□~120Ω/□。
一种双盒VA型液晶显示器的制造工艺,包括如下步骤:
1)按照客户对显示内容的需要,确定双盒VA型液晶显示器显示内容的分配方案,即在上液晶盒显示还是下液晶盒显示;
2)分别在上、下2个液晶盒的上玻璃基板与下玻璃基板的ITO侧涂PI取向剂,所形成的上PI取向层、下PI取向层的预倾角为85°~90°度;
3)PI取向剂固化后,用绒布在PI取向层上摩擦,所形成摩擦纹的方向与细缝方向所呈角度为90°±5°;此时形成的摩擦视角可以做成上下盒相反方向,实现拓宽视角的功能;或者做成上下盒相同方向,其更注重提高显示内容数量,可实现浮动显示效果;
4)在上ITO层表面喷直径范围为3.0μm~6.0μm的衬垫料,使衬垫料以密度范围为每平方毫米60个~180个均匀分布,液晶盒的厚度由衬垫料的大小决定;涂边框胶并留有多个灌注口,贴合后分别形成上液晶盒及下液晶盒;
5)通过灌注口分别向2个液晶盒内灌注液晶,液晶为负介电各向异性液晶,在非显示状态下,液晶分子在液晶盒内垂直排列,在显示状态下,液晶分子倾斜排列;上、下2个液晶盒内的液晶分子可以按相同方向倾斜,也可以按相反方向倾斜;
6)封灌注口后,对上、下2个液晶盒进行贴合;此时液晶盒已经分成单粒,采用能同时点亮双盒,并且带10倍显微定位功能的单粒合盒机对2个液晶盒进行贴合;
7)在上液晶盒的上表面贴合上偏光片,在下液晶盒的下表面贴合下偏光片。
与现有技术相比,本发明的有益效果是:
1)通过采用LCD双盒结构及浮动显示技术,可同时达到提高显示内容数量及拓宽视角范围的目的;
2)可实现无暗区,全视角显示效果,各方向的视角宽;
3)利用现有生产设备即可生产,制造工艺简单,成本低。
附图说明
图1是本发明所述双盒VA型液晶显示器的结构示意图。
图中:1.上偏光片2.上液晶盒3.胶水4.下液晶盒5.下偏光片11.上玻璃基板12.上PI取向层13.液晶层14.下PI取向层15.下玻璃基板16.边框胶17.衬垫料18.液晶
具体实施方式
下面结合附图对本发明的具体实施方式作进一步说明:
见图1,是本发明所述双盒VA型液晶显示器的结构示意图。本发明所述一种双盒VA型液晶显示器,包括自上而下设置的上偏光片1、上液晶盒2、胶水3、下液晶盒4和下偏光片5,所述上液晶盒2、下液晶盒4分别由自上而下设置的上玻璃基板11、上ITO层、上PI取向层12、液晶层13、下PI取向层14、下ITO层和下玻璃基板15组成,其中液晶层13通过边框胶16和封口胶封闭在上PI取向层12和下PI取向层14之间;上、下2个液晶盒2、4摩擦后形成的视角方向相反。
所述上液晶盒2的下玻璃基板15及下液晶盒4的上玻璃基板11的厚度≤0.55mm,上液晶盒2的上玻璃基板11及下液晶盒4的下玻璃基板15厚度范围为0.55mm~1.1mm。
所述上偏光片1和下偏光片5均为复合膜偏光片,由偏振度大于99%以上的高偏振度防眩光偏光片或高偏振度眩光偏光片作为基片,与Re补偿值在220~880nm、Rth补偿值在0~100nm的复合补偿膜复合而成。
所述液晶层13中,衬垫料17以密度范围为每平方毫米60~180个均匀分布,周围由液晶18填充;液晶层13为垂直排列向列型,厚度范围为3.0μm~6.0μm。
所述上ITO层和下ITO层的方阻范围为7Ω/□~120Ω/□。
一种双盒VA型液晶显示器的制造工艺,包括如下步骤:
1)按照客户对显示内容的需要,确定双盒VA型液晶显示器显示内容的分配方案,即在上液晶盒2显示还是下液晶盒4显示;
2)分别在上、下2个液晶盒2、4的上玻璃基板11与下玻璃基板15的ITO侧涂PI取向剂,所形成的上PI取向层12、下PI取向层14的预倾角为85°~90°度;
3)PI取向剂固化后,用绒布在PI取向层12、14上摩擦,所形成摩擦纹的方向与细缝方向所呈角度为90°±5°;此时形成的摩擦视角可以做成上下盒相反方向,实现拓宽视角的功能;或者做成上下盒相同方向,其更注重提高显示内容数量,可实现浮动显示效果;
4)在上ITO层表面喷直径范围为3.0μm~6.0μm的衬垫料17,使衬垫料17以密度范围为每平方毫米60个~180个均匀分布,液晶盒2、4的厚度由衬垫料17的大小决定;涂边框胶16并留有多个灌注口,贴合后分别形成上液晶盒2及下液晶盒4;
5)通过灌注口分别向2个液晶盒2、4内灌注液晶18,液晶18为负介电各向异性液晶,在非显示状态下,液晶分子在液晶盒2、4内垂直排列,在显示状态下,液晶分子倾斜排列;上、下2个液晶盒2、4内的液晶分子可以按相同方向倾斜,也可以按相反方向倾斜;
6)封灌注口后,对上、下2个液晶盒2、4进行贴合;此时液晶盒2、4已经分成单粒,采用能同时点亮双盒,并且带10倍显微定位功能的单粒合盒机对2个液晶盒2、4进行贴合;
7)在上液晶盒2的上表面贴合上偏光片1,在下液晶盒4的下表面贴合下偏光片5。
在双盒VA型液晶显示器中,液晶分子在非显示状态下与单盒VA型液晶显示器的液晶分子状态一样,但是在显示状态,双盒VA型液晶显示器中液晶分子是向两个方向倾倒的,而单盒VA型液晶显示器中液晶分子是向一个方向倾倒的,所以在双盒VA型液晶显示器中,能够实现宽视角的目标。另外由于是由于采用2个液晶层13显示,实现了一层显示在前,一层显示在后的浮动显示效果。并且2个液晶层13显示可以实现交叉,在实现单层液晶盒实现不了的浮动显示功能的同时,还可以增加显示内容。
具体实施时,本发明所述双盒VA型液晶显示器可以与外部控制芯片MCU相配合使用,通过串行接口(PIN脚)对驱动芯片输入数据,经过计算由程序控制LCD屏,在LCD显示屏上显示所需内容。
本发明中,为了避免上下2个液晶层13显示时的错层问题,中间两层ITO玻璃应尽量薄,最大不能超过0.55mm。
上、下偏光片1、5采用复合膜偏光片,通过复合膜的作用使所制造的液晶显示器在非显示状态下在各个角度下都是黑底色而没有漏光。在显示状态下,由于每个像素上的液晶分子的排列而形成的两种倾斜方向,避免了暗区,达到了超宽视角,无色散,对比度高的显示效果。
以上所述,仅为本发明较佳的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,根据本发明的技术方案及其发明构思加以等同替换或改变,都应涵盖在本发明的保护范围之内。

Claims (6)

1.一种双盒VA型液晶显示器,其特征在于,包括自上而下设置的上偏光片、上液晶盒、胶水、下液晶盒和下偏光片,所述上液晶盒、下液晶盒分别由自上而下设置的上玻璃基板、上ITO层、上PI取向层、液晶层、下PI取向层、下ITO层和下玻璃基板组成,其中液晶层通过边框胶和封口胶封闭在上PI取向层和下PI取向层之间;上、下2个液晶盒摩擦后形成的视角方向相反。
2.根据权利要求1所述的一种双盒VA型液晶显示器,其特征在于,所述上液晶盒的下玻璃基板及下液晶盒的上玻璃基板的厚度≤0.55mm,上液晶盒的上玻璃基板及下液晶盒的下玻璃基板厚度范围为0.55mm~1.1mm。
3.根据权利要求1所述的一种双盒VA型液晶显示器,其特征在于,所述上偏光片和下偏光片均为复合膜偏光片,由偏振度大于99%以上的高偏振度防眩光偏光片或高偏振度眩光偏光片作为基片,与Re补偿值在220~880nm、Rth补偿值在0~100nm的复合补偿膜复合而成。
4.根据权利要求1所述的一种双盒VA型液晶显示器,其特征在于,所述液晶层中,衬垫料以密度范围为每平方毫米60~180个均匀分布,周围由液晶填充;液晶层为垂直排列向列型,厚度范围为3.0μm~6.0μm。
5.根据权利要求1所述的一种双盒VA型液晶显示器,其特征在于,所述上ITO层和下ITO层的方阻范围为7Ω/□~120Ω/□。
6.根据权利要求1所述的一种双盒VA型液晶显示器的制造工艺,其特征在于,包括如下步骤:
1)按照客户对显示内容的需要,确定双盒VA型液晶显示器显示内容的分配方案,即在上液晶盒显示还是下液晶盒显示;
2)分别在上、下2个液晶盒的上玻璃基板与下玻璃基板的ITO侧涂PI取向剂,所形成的上PI取向层、下PI取向层的预倾角为85°~90°度;
3)PI取向剂固化后,用绒布在PI取向层上摩擦,所形成摩擦纹的方向与细缝方向所呈角度为90°±5°;此时形成的摩擦视角可以做成上下盒相反方向,实现拓宽视角的功能;或者做成上下盒相同方向,其更注重提高显示内容数量,可实现浮动显示效果;
4)在上ITO层表面喷直径范围为3.0μm~6.0μm的衬垫料,使衬垫料以密度范围为每平方毫米60个~180个均匀分布,液晶盒的厚度由衬垫料的大小决定;涂边框胶并留有多个灌注口,贴合后分别形成上液晶盒及下液晶盒;
5)通过灌注口分别向2个液晶盒内灌注液晶,液晶为负介电各向异性液晶,在非显示状态下,液晶分子在液晶盒内垂直排列,在显示状态下,液晶分子倾斜排列;上、下2个液晶盒内的液晶分子可以按相同方向倾斜,也可以按相反方向倾斜;
6)封灌注口后,对上、下2个液晶盒进行贴合;此时液晶盒已经分成单粒,采用能同时点亮双盒,并且带10倍显微定位功能的单粒合盒机对2个液晶盒进行贴合;
7)在上液晶盒的上表面贴合上偏光片,在下液晶盒的下表面贴合下偏光片。
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CN107918224A (zh) * 2017-12-28 2018-04-17 惠州市华星光电技术有限公司 显示面板及显示装置
CN111240077A (zh) * 2020-02-25 2020-06-05 深圳市隆利科技股份有限公司 防窥显示方法

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