CN105223751A - 一种低电压高透过率的蓝相液晶显示器 - Google Patents

一种低电压高透过率的蓝相液晶显示器 Download PDF

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CN105223751A
CN105223751A CN201510707186.9A CN201510707186A CN105223751A CN 105223751 A CN105223751 A CN 105223751A CN 201510707186 A CN201510707186 A CN 201510707186A CN 105223751 A CN105223751 A CN 105223751A
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liquid crystal
upper substrate
blue phase
infrabasal plate
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王琼华
毛江林
王健
范昊翔
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Sichuan University
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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
    • G02F1/137—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
    • 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
    • G02F1/1343—Electrodes
    • G02F1/134309—Electrodes characterised by their geometrical arrangement
    • 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
    • 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
    • G02F1/137—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
    • G02F1/13793—Blue phases

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  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
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  • Liquid Crystal (AREA)

Abstract

本发明提出一种低电压高透过率的蓝相液晶显示器，本发明包括上基板9，液晶层8和下基板10；上基板9和下基板10彼此平行设置，液晶层8使用蓝相液晶材料；上基板9包括上基板偏振片1、λ/2双轴补偿膜2和上基板玻璃层3；下基板10包括下基板玻璃层6和下基板偏振片7；上基板偏振片1和下基板偏振片7透光轴方向相互垂直；透明凹形电极4由像素电极P和公共电极C相间排列组成；蚀刻区域5优选为矩形区域。

Description

一种低电压高透过率的蓝相液晶显示器
技术领域
本发明涉及液晶显示领域，具体为一种低电压高透过率的蓝相液晶显示器。
背景技术
蓝相液晶显示器作为下一代有潜力的液晶显示器主要是因为其有四个常用的扭曲排列型液晶无法比拟的突出的优点：（1）具有亚毫秒级的响应时间，不但可以实现时序彩色显示，同时可以降低动态图像的模糊；（2）不需取向层，这大大简化了制备工艺；（3）蓝相液晶在暗场时表现出光学各向同性，从而使蓝相液晶显示器的视角大而且非常对称；（4）只要液晶盒的厚度大于一定值时，其透射率对液晶盒盒厚不敏感，故适合制作大显示屏。然而在蓝相液晶器要得到广泛应用还有两大技术难题需要解决：（1）工作电压较高；（2）光效率较低。为了降低工作电压提高透过率，国内外研究团队先后提出突起电极结构、墙型电极结构、波纹型电极结构、蚀刻面内转换电极结构等多种电极结构。此外，还发现提高蓝相液晶材料的克尔系数也可降低工作电压。
发明内容
本发明意在提升蓝相液晶显示器的性能，提出一种低电压高透过率的蓝相液晶显示器。
本发明包括上基板9、液晶层8和下基板10；上基板9和下基板10彼此平行设置，液晶层8使用蓝相液晶材料；上基板9包括上基板偏振片1、λ/2双轴补偿膜2和上基板玻璃层3；下基板10包括下基板玻璃层6和下基板偏振片7；上基板偏振片1和下基板偏振片7透光轴方向相互垂直；下基板玻璃层6里的透明凹形电极4由像素电极P和公共电极C相间排列组成。
优先地，所述的液晶盒盒厚应大于电场向上基板9方向的穿透深度，这样液晶盒盒厚的变化对透射率的影响就可忽略，整个液晶盒盒厚不必精确一致。
透明凹形电极4的蚀刻区域5通过曝光工艺、掩膜工艺、光刻工艺、或腐蚀工艺实现。
优选地，蚀刻区域5的底角角度为θ，且90°≤θ≤120°，其中θ=90°即蚀刻区域5优选为矩形区域。
附图说明
附图1为本发明的低电压高透过率的蓝相液晶显示器的结构示意图。
附图2为本发明的实施例、传统IPS结构实施例、蚀刻IPS结构实例和突起结构实施例的电压-透射率曲线图。
附图3为本发明的实施例的全视区等对比度图。
上述各附图中的图示标号为：
1上基板偏振片，2λ/2双轴补偿膜，3上基板玻璃层，4透明凹形电极，5蚀刻区域，6下基板玻璃层，7下基板偏振片，8液晶层，9上基板，10下基板。
具体实施方式
为使本领域的技术人员能更进一步了解本发明，下面将结合附图详细地说明本发明的具体实施方式。
本发明的一种实施例提出一种低电压高透过率的蓝相液晶显示器。如附图1所示，本发明包括上基板9、液晶层8和下基板10；上基板9和下基板10彼此平行设置，液晶层8使用蓝相液晶材料；上基板9包括上基板偏振片1、λ/2双轴补偿膜2和上基板玻璃层3；下基板10包括下基板玻璃层6和下基板偏振片7；上基板偏振片1和下基板偏振片7透光轴方向相互垂直；透明凹形电极4由像素电极P和公共电极C相间排列组成；蚀刻区域5优选为矩形区域。
设定下基板偏振片7透光轴方向为45°，上基板偏振片1透光轴方向为-45°，λ/2双轴补偿膜2透光轴方向为45°。
本实施例中使用的液晶材料的特性参数为：蓝相液晶的材料折射率为n o=1.5，n e=1.654；在波长λ=550nm时，最大双折射为0.154，饱和电场为4.15V/μm，克尔系数K=16.3nm/V2。
本实施例中蓝相液晶盒盒厚d=10μm，透明突起电极4的宽度w=2μm，蚀刻区域5的宽度s=1μm，深度h=1μm，相邻两透明突起电极4间的间隙l=4μm。
附图2为本发明的实施例（带方形的实线）、IPS结构实施例（带圆圈的细实线）、蚀刻IPS结构实施例（虚线）和突起结构实施例（点划线）的电压-透射率曲线图。在IPS结构实施例、蚀刻IPS结构实施例和突起结构实施例中我们采用和本发明实施例相同的液晶材料、电极参数以及液晶盒盒厚。从附图2中可以发现，本实施例的峰值透过率与IPS结构实施例、蚀刻IPS结构实施实例和突起结构实施例相比，其峰值透过率分别要高出～22%、~17.6%和11.4%，电压分别要降低~65%、~26.3%和~48.1%。当减小电极间距l到2μm时，本发明实施例（粗实线）的电压可以降低到~9V，透过率为~72%。
当不施加电压时，液晶盒中的蓝相液晶呈光学各向同性，使得整个液晶盒呈现出一个非常好的暗态。当施加电压时，蓝相液晶变成了光学各向异性，其光轴沿着电场的方向。光线在通过蓝相液晶层时，产生相位延迟，偏振态也随之改变。在传统的IPS结构实施例和突起结构实施例中，电极正上方没有水平电场，平均水平电场不强，故导致该区域透过率较低，存在“死区”，且电压较高。本发明实施例中，，透明凹形电极5的上方类似于IPS电极产生面内场，透明凹形电极5的侧面类似于凸起电极产生很强的水平场，两者相叠加从而使得电压降低，透过率得到提升。
附图3为本发明的实施例的全视区等对比度图。由附图3可知，本实施例的视角宽且对称，整个视区对比度大于200：1的曲线覆盖了整个视角范围，而对比度大于1000：1的曲线覆盖了60°的视角范围。
以上所述仅为本发明的优选实施例，但本发明不限于此实施例。本领域的普通技术人员应当理解，在不脱离由权利要求书限定的本发明的精神实质和范围的情况下对其形式和细节做出的各种改变，皆应属本发明的范围内。

Claims (4)

1.一种低电压高透过率的蓝相液晶显示器，包括上基板9、液晶层8和下基板10；
上基板9和下基板10彼此平行设置，液晶层8使用蓝相液晶材料；
上基板9包括上基板偏振片1、λ/2双轴补偿膜2和上基板玻璃层3；
下基板10包括下基板玻璃层6和下基板偏振片7；
上基板偏振片1和下基板偏振片7透光轴方向相互垂直；
透明凹形电极4由像素电极和公共电极相间排列而成。
2.根据权利要求1所述的一种低电压高透过率的蓝相液晶显示器，其特征是，所述液晶盒盒厚应大于电场向上基板9方向的穿透深度。
3.根据权利要求1所述的一种低电压高透过率的蓝相液晶显示器，其特征是，透明凹形电极4由像素电极P和公共电极C相间排列。
4.根据权利要求1所述的一种低电压高透过率的蓝相液晶显示器，其特征是，蚀刻区域底角角度为θ，且90°≤θ≤120°，其中θ=90°为优选实施例。
CN201510707186.9A 2015-10-28 2015-10-28 一种低电压高透过率的蓝相液晶显示器 Pending CN105223751A (zh)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106896611A (zh) * 2017-04-12 2017-06-27 四川大学 一种低电压高透过率的蓝相液晶显示器
CN108594546A (zh) * 2018-05-02 2018-09-28 四川大学 一种双盒厚透反蓝相液晶显示器

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100009478A1 (en) * 2005-05-20 2010-01-14 Joon-Young Yang Ips mode liquid crystal display device and method for fabricating thereof
CN102031121A (zh) * 2009-09-29 2011-04-27 奇美电子股份有限公司 液晶组合物和使用其的液晶显示器装置
US20120099047A1 (en) * 2010-10-22 2012-04-26 Kyung-Jun Lee Organic light emitting diode display
TW201341916A (zh) * 2012-04-12 2013-10-16 Innocom Tech Shenzhen Co Ltd 畫素結構及應用其之液晶顯示結構
JP2014010229A (ja) * 2012-06-28 2014-01-20 Kyocera Corp 液晶表示装置
US20140141554A1 (en) * 2008-02-21 2014-05-22 Samsung Display Co., Ltd. Display device and method of manufacturing the same

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100009478A1 (en) * 2005-05-20 2010-01-14 Joon-Young Yang Ips mode liquid crystal display device and method for fabricating thereof
US20140141554A1 (en) * 2008-02-21 2014-05-22 Samsung Display Co., Ltd. Display device and method of manufacturing the same
CN102031121A (zh) * 2009-09-29 2011-04-27 奇美电子股份有限公司 液晶组合物和使用其的液晶显示器装置
US20120099047A1 (en) * 2010-10-22 2012-04-26 Kyung-Jun Lee Organic light emitting diode display
TW201341916A (zh) * 2012-04-12 2013-10-16 Innocom Tech Shenzhen Co Ltd 畫素結構及應用其之液晶顯示結構
JP2014010229A (ja) * 2012-06-28 2014-01-20 Kyocera Corp 液晶表示装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106896611A (zh) * 2017-04-12 2017-06-27 四川大学 一种低电压高透过率的蓝相液晶显示器
CN108594546A (zh) * 2018-05-02 2018-09-28 四川大学 一种双盒厚透反蓝相液晶显示器

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