New viewing angle controllable LCD

WU Ting-ting; SU Zi-fang; ZHONG De-zhen; JIANG Li-mei

doi:10.3788/YJYXS20153003.0538

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New viewing angle controllable LCD

Measurement Technology | 更新时间：2020-08-12

- New viewing angle controllable LCD
- Chinese Journal of Liquid Crystals and Displays Vol. 30, Issue 3, Pages: 538-542(2015)
- 作者机构：
  
  昆山龙腾光电有限公司, 江苏昆山 215301
- 作者简介：
- 基金信息：
- DOI：10.3788/YJYXS20153003.0538
  CLC： PACS
- Received：13 October 2014，
  
  Revised：23 November 2014，
  
  Published：05 June 2015
- 稿件说明：
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吴婷婷, 苏子芳, 钟德镇, 姜丽梅. 一种新的视角可控的液晶显示仿真研究[J]. 液晶与显示, 2015,30(3): 538-542

WU Ting-ting, SU Zi-fang, ZHONG De-zhen, JIANG Li-mei. New viewing angle controllable LCD[J]. , 2015,30(3): 538-542
吴婷婷, 苏子芳, 钟德镇, 姜丽梅. 一种新的视角可控的液晶显示仿真研究[J]. 液晶与显示, 2015,30(3): 538-542 DOI： 10.3788/YJYXS20153003.0538.

WU Ting-ting, SU Zi-fang, ZHONG De-zhen, JIANG Li-mei. New viewing angle controllable LCD[J]. , 2015,30(3): 538-542 DOI： 10.3788/YJYXS20153003.0538.

摘要

在PVA显示模式的基础上

研究了一种新型的液晶显示视角切换技术.通过增大液晶分子在暗态下的倾斜角度控制暗态亮度

实现了宽视角下暗态低

显示对比度高;窄视角下暗态高

在相同白态亮度下

显示对比度低.实施可行性:在时序控制芯片系统(Timing Controling

con

)中烧录两版code

使用者根据不同环境下对宽窄视角的特性需求选择相应的显示模式

通过宽窄视角下分别采用不同的

con

code编译驱动电压以实现宽窄视角的面板显示.模拟结果表明:宽视角显示上下左右视角达到80以上

而窄视角显示上下左右视角均不足40

从模拟结果看本文提供的宽窄视角显示方法是有效的.

Abstract

Based on the PVA mode

this paper researches a new technology of viewing angle controllable LCD. By increasing the pretilt angle of liquid crystal molecular at dark states

it realizes a high contrast with low dark luminance at wide-viewing angle(WVA) mode and low contrast with high dark luminance at narrow-viewing angle(NVA) mode. By burning different code to

con

ROM

according to the demand of users to realize WVA or NVA at different conditions

it gets two types of source voltages. The simulation results show that the up/down/left/right view angle are more than 8at WVA and less than 40 at NVA

the results show that the new viewing angle controllable technology is effective.

关键词

Keywords

references

钟德镇,李永谦,戴文君,等. 液晶显示装置:中国, 201110225983.5 [P]. 2011-11-23. Zhong D Z, Li Y Q, Dai W J, et al. The Liquid crystal display device:Chinese, 201110225983.5 [P]. 2011-11-23.(in Chinese)[2] 马群刚. TFT-LCD原理与设计 [M]. 北京:电子工业出版社, 2011:216-242. Ma Q G. Principle and Design of TFT-LCD[M].Beijing:Electronic industry Press,2011:216-242.(in Chinese)[3] 田民波,叶锋. TFT液晶显示原理与技术 [M]. 北京: 科学出版社, 2010:98-125. Tian M B, Ye F. The Principle and Technology of TFT-LCD[M].Beijing:Science Press,2010:98-125. (in Chinese)[4] Lee S H, Kim H Y, LEE S, et al. Ultra-FFS TFT-LCD with super image quality,fast response time, and strong pressure-resistant characteristics [J]. Journal of the Society for Information Display, 2002,10(2):117-122.[5] Yeung F S, Li Y W, Kwok H S. Viewing angle switching of vertical alignment liquid crystal displays by controlling birefringence of homogenously aligned liquid crystal layer[J]. Appl.Phys.Lett., 2006,88(4):041108.[6] Yeung F S, Li Y W, Kwok H S. Pi-cell liquid crystal displays at arbitrary pretilt angles[J]. Appl.Phys.Lett., 2007, 90(5):051116.[7] Lim Y J,Kim J H, Her J H, et al. Viewing angle switching of liquid crystal display using fringe-field switching to control off-axis phase retardation[J]. J.Phys.D:Appl.Phys, 2010,43:085501.[8] Taira Y, Nakano D, Numata H, et al. Low-power LCD using a novel optical system[J].SID'02 Digest,2002:1313-1315.[9] 冷金荜. 可控视角LCD的原理研究及验证[D].成都:电子科技大学, 2010. Leng J B. The principle research and vertification of viewing angle controlled LCD[D]. Chengdu: University of Electronic Science and Technology, 2010. (in Chinese)

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