CN107247349B - 一种多功能连续视角可控显示器 - Google Patents

一种多功能连续视角可控显示器 Download PDF

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CN107247349B
CN107247349B CN201710378656.0A CN201710378656A CN107247349B CN 107247349 B CN107247349 B CN 107247349B CN 201710378656 A CN201710378656 A CN 201710378656A CN 107247349 B CN107247349 B CN 107247349B
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唐先柱
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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
    • G02F1/1323—Arrangements for providing a switchable viewing angle
    • 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
    • G02F1/137—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
    • G02F1/137—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

Abstract

本发明涉及一种显示器，特别涉及一种多功能连续视角可控显示器。它包括依次排列的起偏器、广视角显示模组、蓝相液晶盒和检偏器，其特征是，所述蓝相液晶盒包括一块下基板和一块上基板，所述上基板和下基板平行，所述上基板和下基板之间通过框胶连接，蓝相液晶位于上基板和下基板之间，所述下基板上方为下透明电极，所述上基板下方为若干等距分布的上透明电极。本发明可实现宽、视角模式的电光特性，对比度视角分布基本不受；可实现宽窄视角的中心对比度与电光特性一致。不需要增加额外的设备，在液晶透镜式裸眼立体显示架构的基础上，实现窄视角。利用蓝相液晶亚毫秒的响应速度，实现快速切换。

Description

一种多功能连续视角可控显示器
技术领域
本发明涉及一种显示器，特别涉及一种蓝相液晶微透镜自适应调试系统。
背景技术
在信息化高度发展的今天, 用户对显示器的要求除了一般的影像与色彩外，还要提供了令人震撼的立体空间的感受,同时对于分享性资料及机密性资料还要具有不同的视觉需求，单一视角模式的显示器已经不能满足使用者的需求，对显示器在宽窄视角模式之间转换功能方面提出新的需求，当使用者需要共享信息时，打开宽视角模式；当使用者想要保护显示信息时，使用窄视角模式。而当前的宽窄视角技术很难同时获得较好宽视角和窄视角的效果，两者很难同时发挥到极致,而往往是两种视角效果都欠佳。
发明内容
本发明为了弥补现有技术的缺陷，提供了一种可同时获得较好宽窄视觉效果的多功能连续视角可控显示器。
本发明是通过如下技术方案实现的：
一种多功能连续视角可控显示器，包括依次排列的起偏器、广视角显示模组、蓝相液晶盒和检偏器，其特征是，所述蓝相液晶盒包括一块下基板和一块上基板，所述上基板和下基板平行，所述上基板和下基板之间通过框胶连接，蓝相液晶位于上基板和下基板之间，所述下基板上方为下透明电极，所述上基板下方为若干等距分布的上透明电极。
所述上透明电极下方为绝缘层，所述绝缘层下方为等距离分布的内透明电极，所述内透明电极与上透明电极间隔设置。
本发明的有益效果是：
1、本发明可实现宽、视角模式的电光特性基本一致，对比度视角分布互不影响.
2、可实现宽窄视角的中心对比度与电光特性一致。
3、不需要增加额外的设备，在液晶透镜式裸眼立体显示架构的基础上，实现窄视角。
4、利用蓝相液晶亚毫秒的响应速度，实现快速切换。
附图说明
下面结合附图对本发明作进一步的说明：
图1为本发明的结构示意图；
图2为蓝相液晶盒为单层电极时的工作原理图；
图3为蓝相液晶盒为双层电极时的工作原理图；
图4为蓝相液晶右倾斜的结构示意图；
图5为等对比度视角分布仿真图一；
图6为蓝相液晶左倾斜的结构示意图；
图7为等对比度视角分布仿真图二；
图8为蓝相液晶透镜双畴的结构示意图；
图9为等对比度视角分布仿真图三；
图10电压差为△1时的等对比度视角分布仿真图；
图11电压差为△2时的等对比度视角分布仿真图；
图12电压差为△3时的等对比度视角分布仿真图；
图13电压差为△4时的等对比度视角分布仿真图；
图14电压差为△5时的等对比度视角分布仿真图。
图中：1起偏器，2广视角显示模组，3蓝相液晶盒，4检偏器，5下基板，6下透明电极，7框胶，8上基板，9蓝相液晶，10上透明电极，11内透明电极，12绝缘层。
具体实施方式
附图为本发明的具体实施例。如图1至图14所示，该种多功能连续视角可控显示器，包括依次排列的起偏器1、广视角显示模组2、蓝相液晶盒3和检偏器4，图1中的箭头表示光的传播方向，如图2所示，蓝相液晶盒3包括一块下基板5和一块上基板8，上基板8和下基板5平行，上基板8和下基板5都是一整块面板，上基板8和下基板5之间通过框胶7连接，蓝相液晶9位于上基板8和下基板5之间，下基板5上方为下透明电极6，下透明电极6为一整块的面板状,上基板8下方为若干等距分布的上透明电极10；如图3还可以在上透明电极10下方设置绝缘层12，绝缘层下方12为等距离分布的内透明电极11，内透明电极11与上透明电极10间隔设置。
工作原理如下：如图2、图3所示，蓝相液晶微透镜工作所需要的寻常折射率no随电场变化的原理来实现的，改变电极电压，可使蓝相液晶盒中不同位置的蓝相液晶的折射率no不同，合理的控制电极电压，即可实现透镜的功能。其中图2和图3液晶透镜盒的截面示意图,上基板透明电极为分别为单层电极条和双层电极条,如图2中V3=0 ,V2=V4<V1=V5形成透镜功能, 如图3中V6=0 ,V5=V7<V4=V8<V3=V9<V2=V10<V1=V11形成透镜功能。
由于蓝相液晶透镜具有可调谐性，也可以驱动成均匀一致排列的非透镜的效果，利用液晶独有的视角特性实现控制视角宽窄变化。裸眼立体显示模组组成简易结构如图1所示，蓝相液晶盒实现连续视角控制视角的功能，检偏器与起偏器的透光轴根据广光视角模组的工作原理设计成互相垂直或者平行搭配使用，如检偏器透光轴方位角为0度与起偏器的透光轴方位角为90度，或者检偏器透光轴方位角为90度与起偏器的透光轴方位角为0度。广视角显示模组可为液晶显示器与补偿膜搭配形成的高性能的广视角模组,蓝相液晶盒内部结构可根据需要设计成不同的结构，如液晶透镜等.
如图2、图3所示，其中下透明电极为整面电极，当蓝相液晶被驱动成垂直基板的排列的单轴晶体时，随着电压的增大，液晶的折射率各项异性△n随之增大，通过控制上下电极电压实现视角连续可控，但是方位角为0度, 90度, 180度, 270度的方向仍然为宽视角，不能很好的起到隐私保护的功能，图5为不施加电场时宽视角的等对比度分布仿真图,图6为施加电场时视角变窄的的等对比度分布仿真图。
如图4所示，当单轴正性的液晶在xoz平面或者平行于该平面的面内向右倾斜一定角度时，会出现如图5所示的等对比度视角分布，如图6所示，当单轴正性的液晶在xoz平面或者平行于该平面的面内向左倾斜一定角度时，会出现如图7所示的视角分布，主要由于在xoz平面或者平行于该平面的面内不会产生位相延迟。而在yoz平面或者平行于该平面的面内产生位相延迟，使方位角为90度, 270度的方向的视角变窄。
如图8所示，当在蓝相液晶盒阵列一个透镜周期内形成一组或者多组两畴结构时，视角的分布会如图9所示，形成对称的视角分布，调整电极电压即可实现窄视角模式连续可控，根据需要调节电压达到所需要的最佳状态。
蓝相液晶透镜不工作时，各项同性态的蓝相液晶对宽视角的LCD显示视角分布不产生影响，因而可实现宽视角，宽视角对比度分布如图10所示,当液晶透镜工作在双畴状态可实现对称窄视角连续可控。
图8中,控制电极电压形成双畴结构时,压差增大时视角的变化如图10-14所示,电压差分别为△V1, △V2, △V3, △V4, △V5,且△V1<△V2<△V3<△V4<△V5.
除说明书所述技术特征外，其余技术特征均为本领域技术人员已知技术。

Claims (1)

1.一种多功能连续视角可控显示器，包括依次排列的起偏器(1)、广视角显示模组(2)、蓝相液晶盒(3)和检偏器(4)，其特征是，所述蓝相液晶盒(3)包括一块下基板(5)和一块上基板(8)，所述上基板(8)和下基板(5)平行，所述上基板(8)和下基板(5)之间通过框胶(7)连接，蓝相液晶(9)位于上基板(8)和下基板(5)之间，所述下基板(5)上方为下透明电极(6)，所述上基板(8)下方为若干等距分布的上透明电极(10)，所述上透明电极(10)下方为绝缘层(12)，所述绝缘层(12)下方为等距离分布的内透明电极(11)，所述内透明电极(11)与上透明电极(10)间隔设置；蓝相液晶微透镜工作所需要的寻常折射率no随电场变化的原理来实现的，改变电极电压，可使蓝相液晶盒中不同位置的蓝相液晶的折射率no不同，合理的控制电极电压，即可实现透镜的功能；由于蓝相液晶透镜具有可调谐性，也可以驱动成均匀一致排列的非透镜的效果，利用液晶独有的视角特性实现控制视角宽窄变化；蓝相液晶盒实现连续视角控制视角的功能，检偏器与起偏器的透光轴根据广光视角模组的工作原理设计成互相垂直或者平行搭配使用。
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CN102253541A (zh) * 2011-06-29 2011-11-23 四川大学 一种视角可控的蓝相液晶显示器
CN102944958A (zh) * 2012-11-15 2013-02-27 京东方科技集团股份有限公司 一种半透半反液晶显示装置
CN203490442U (zh) * 2013-09-30 2014-03-19 河北工业大学 一种视角连续可控的蓝相液晶显示器
CN203720504U (zh) * 2014-02-20 2014-07-16 河北工业大学 一种低驱动电压、视角连续可控的蓝相液晶显示器
CN105093765A (zh) * 2015-08-26 2015-11-25 上海交通大学 一种电控聚合物稳定蓝相液晶聚合过程的方法及其器件
CN207232567U (zh) * 2017-05-25 2018-04-13 菏泽学院 一种多功能连续视角可控显示器

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