CN106292053A - 一种va型高密度显示点阵液晶显示器 - Google Patents
一种va型高密度显示点阵液晶显示器 Download PDFInfo
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- 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
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- 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
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- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
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- G02F1/13363—Birefringent elements, e.g. for optical compensation
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- 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
- G02F1/137—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
- G02F1/13712—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering the liquid crystal having negative dielectric anisotropy
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Abstract
本发明涉及一种实现被动式VA型产品实现高密度显示点阵的设计方案，其特征在于，结构上选择大盒厚和多层复合膜搭配，材料选择高陡度液晶，两者以增加LCD本身的陡度特性，提高显示容量，配合MLA类型的IC,经试制出的产品验证，产品保持了VA产品的黑底色，白字体，无色散，没有交叉效应的优良特点。
Description
技术领域
本发明涉及一种实现被动式VA型产品实现高密度显示点阵的液晶显示器设计方案。其特征在于，结构上选择大盒厚和多层复合膜搭配，材料选择高陡度液晶，两者以增加LCD本身的陡度特性，提高显示容量，经试制出的产品验证，产品保持了VA产品的黑底色，白字体，无色散，没有交叉效应的优良特点。
背景技术
近些年新开发出的被动式VA型产品在具有黑底色，白色字体，宽视角的特点，替代TN型负显产品有明显的优势。但是目前的方案在实现产品的显示内容上有明显的限制，在实现16行及以上的点阵内容时，显示效果下降，无法达到常规使用要求，无法应用于16行及以上产品。
为实现更高的显示内容容量，要求进一步提高产品的陡度，以实现更多的显示内容。本发明专利即是针对这个问题，通过多次实验，总结提出了实现VA型产品实现高密度显示点阵结构设计方案。
发明内容
本发明的目的是提供一种VA型高密度显示点阵液晶显示器，结构上采用大盒厚，多层补偿膜偏光片，材料选用高陡度液晶，配合MLA驱动，实现高驱动路数、高对比度显示、保持低路数VA的黑底色无色散等显示特点，实现了显示内容容量的进一步提高。
为显示高密度显示点阵，本发明采用以下技术方案实现：
一种VA型高密度显示点阵液晶显示器，其特征在于，包括自上而下设置的上偏光片偏振层、偏光片补偿膜一、偏光片补偿膜二、上ITO玻璃基板、—封闭的液晶盒、下ITO玻璃基板、偏光片补偿膜三、下偏光片偏振层，所述的封闭的液晶盒盒厚范围为4.0μm—5.0μm；所述的偏光片偏振层的偏振度在99％以上，所述的偏光片补偿膜一、偏光片补偿膜二的Rth补偿值分别为220nm，Re为0nm；所述的偏光片补偿膜三的Rth补偿值为130nm，Re值在30-100nm；所述的液晶盒选用高陡度的VA液晶，液晶陡度在1.33-1.20之间。
所述的液晶显示器的驱动IC选择MLA类的IC，以能实现高密度显示点阵。
与现有技术相比，本发明的有益效果是：
1盒结构上：选择盒厚大，偏光片复合膜层数多的配合，提高LCD的陡度特性。具体来说有以下几点：
①此产品的结构都采用大盒厚，一般在4μm以上，而低于16路的产品，盒厚设计一般都采用3μm到4μm的设计。
②偏光片采用多层复合膜一般最少要用到三层补偿膜，而低于16路的产品，偏光片补偿膜的层数一般都采用单层或双层。
2.材料选择高陡度的特殊液晶，为实现产品的高陡度，专门开发了高陡度的VA型液晶，液晶陡度在1.33～1.20之间，并且液晶的deltaN在0.15以上，。而原来的低路数VA型产品的液晶陡度一般在1.50～1.65，并且deltaN都在0.15以下。
为了配合高陡度液晶，偏光片补偿膜，盒厚选择和高陡度液晶之间有典型的配合关系，在符合此配合关系时，能实现底色不漏光，以发挥液晶的最佳性能。
3在驱动IC上要选择MLA类的IC以实现更多的显示内容。
附图说明
图1是被动式VA型液晶显示器的结构示意图。
图中：1—上偏光片偏振层 2—偏光片补偿膜一 3—偏光片补偿膜二 4—上ITO玻璃基板 5—封闭的液晶盒 6—下ITO玻璃基板 7—偏光片补偿膜三 8—下偏光片偏振层
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详细描述。
一种被动式VA型液晶显示器，见图1，包括自上而下设置的上偏光片偏振层、偏光片补偿膜一2、偏光片补偿膜二3、上ITO玻璃基板4、封闭的液晶盒5、下ITO玻璃基板6、偏光片补偿膜三7、下偏光片偏振层8，封闭的液晶盒盒厚范围为4.0μm—5.0μm；所述的封闭的液晶盒盒厚范围为4.0μm—5.0μm；所述的偏光片偏振层的偏振度在99％以上，所述的偏光片补偿膜一2、偏光片补偿膜二3的Rth补偿值分别为220nm，Re为0nm；所述的偏光片补偿膜三7的Rth补偿值为130nm，Re值在30-100nm；所述的液晶盒选用高陡度的VA液晶，液晶陡度在1.33以上。所述的液晶显示器的驱动IC选择MLA类的IC，以能实现高密度显示点阵。
所述的被动式VA型液晶显示器的制造工艺，包括以下步骤：
1)通过客户对显示内容的需要，确定被动式VA型液晶显示器的图案内容和像素多少，分别在上玻璃基板ITO层与下玻璃基板ITO层上刻蚀，组成像素；
2)在上玻璃基板与下玻璃基板的ITO侧涂PI取向剂，上PI取向层、下PI取向层的预倾角为89.3°-89.7°度；
3)在上ITO层表面喷直径范围为4.0μm—5.0μm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，保证液晶盒厚度在范围4.0μm—5.0μm之间，涂边框胶并留有多个灌注口，贴合后形成液晶盒；
4)由灌注口向液晶盒内灌注液晶，液晶盒内的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为垂直排列的，在显示状态下，在每个像素上的液晶分子向倾斜排列；灌注时需要加热保持，封口采用压盒封口；
5)封灌注口后，在液晶盒上表面贴补偿膜和偏光片。
6)完成LCD的成品后,COG绑定特殊的MLA型IC，实现高路数的显示。
实施例中，被动式VA型液晶显示器与外部控制芯片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。
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化，凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围内。
Claims (1)
1.一种VA型高密度显示点阵液晶显示器，其特征在于，包括自上而下设置的上偏光片偏振层、偏光片补偿膜一、偏光片补偿膜二、上ITO玻璃、—封闭的液晶盒、下ITO玻璃、偏光片补偿膜三、下偏光片偏振层，所述的封闭的液晶盒盒厚范围为4.0μm—5.0μm；所述的偏光片偏振层的偏振度在99％以上，所述的偏光片补偿膜一、偏光片补偿膜二的Rth补偿值分别为220nm，Re为0nm；所述的偏光片补偿膜三的Rth补偿值为130nm，Re值在30-100nm；所述的液晶盒选用高陡度的VA液晶，液晶陡度在1.33-1.20之间。
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| US6607791B1 (en) * | 1999-10-28 | 2003-08-19 | Dainippon Ink And Chemicals, Inc. | Liquid crystal composition |
| JP2007101808A (ja) * | 2005-10-03 | 2007-04-19 | Dainippon Ink & Chem Inc | 垂直配向型超ねじれ液晶表示素子及びその製造方法 |
| KR20080006500A (ko) * | 2006-07-12 | 2008-01-16 | 닛토덴코 가부시키가이샤 | 광학 보상층 부착 편광판, 그 제조 방법, 및 액정 패널,액정 디스플레이, 및 그를 포함한 이미지 디스플레이 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination |