Natural Pitch Effects on Twist Nematic Liquid Crystal Display

LI Zhi-yong; SHAN Ai-xian; SUN Yu-bao

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Natural Pitch Effects on Twist Nematic Liquid Crystal Display

Device Technology & Physics | 更新时间：2020-08-12

- Natural Pitch Effects on Twist Nematic Liquid Crystal Display
- Chinese Journal of Liquid Crystals and Displays Vol. 25, Issue 3, Pages: 329-333(2010)
- 作者机构：
  
  河北工业大学应用物理系,天津 300401,E-mail:hmtj450@vip.sina.com
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN141.9
- Received：08 December 2009，
  
  Revised：02 January 1900，
  
  Published Online：30 June 2010，
  
  Published：30 June 2010
- 稿件说明：
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李志勇;单艾娴;孙玉宝. 自然螺距对扭曲向列相液晶显示器的影响[J]. 液晶与显示, 2010,25(3): 329-333

LI Zhi-yong;SHAN Ai-xian;SUN Yu-bao. Natural Pitch Effects on Twist Nematic Liquid Crystal Display[J]. 液晶与显示, 2010,25(3): 329-333
李志勇;单艾娴;孙玉宝. 自然螺距对扭曲向列相液晶显示器的影响[J]. 液晶与显示, 2010,25(3): 329-333 DOI：

LI Zhi-yong;SHAN Ai-xian;SUN Yu-bao. Natural Pitch Effects on Twist Nematic Liquid Crystal Display[J]. 液晶与显示, 2010,25(3): 329-333 DOI：

摘要

从理论上分析了自然螺距对常白模式扭曲向列相型液晶显示器响应时间及电光特性的影响

数值模拟了不同手性剂情况下扭曲液晶显示器的响应时间及电光特性。模拟结果表明:盒厚一定时

自然螺距越小

液晶显示器的响应时间越短

但是电光曲线陡度越缓

开态电压增大;扭曲角增大

响应时间变长

但是电光曲线陡度变大。综合考虑扭曲角和液晶的自然螺距

可以提高液晶显示器的显示特性。

Abstract

The natural pitch effects on the response time and the electro-optic properties were theoretically researched in normal white general twist nematic liquid crystal display

including low-twist nematic liquid crystal display and high-twisted nematic liquid crystal display

and the electro-optic properties of the cell with various natural pitches were numerically simulated. The simulative results show that the response time is decreased as the natural pitch is decreased when cell gap is set as a constant

however

the on-state voltage is increased and the slope of electric-optic curve is gentle. Moreover

the response time is increased as the twist angle is increased

but the slope of electro-optic curve for the cell with higher twist angle is steeper than that of the cell with lower twist angle. The display properties of LCD were improved through considering the twist angle and the natural pitch together.

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Keywords

references

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Related Institution

College of Engineering, Peking University

School of Chemistry and Environment Science, Beijing University of Aeronautics and Astronautics

Optical and Electrical Material Department,Xian Modern Chemistry Research Institute, Xian 710065,China,E-mail: lijl208@sohu.

State Key Laboratory of Advanced Displays and Optoelectronics Technologies， Hong Kong University of Science and Technology

College of Information Science and Technology， Donghua University

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