Measurement of director distribution in reflective mixed-mode twisted nematic liquid crystal cell using fully leaky waveguide technique

ZHAO jing; LIU Fei; SUN Jing

doi:10.3788/YJYXS20163106.0540

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Measurement of director distribution in reflective mixed-mode twisted nematic liquid crystal cell using fully leaky waveguide technique

Material and Device | 更新时间：2020-08-12

- Measurement of director distribution in reflective mixed-mode twisted nematic liquid crystal cell using fully leaky waveguide technique
- Chinese Journal of Liquid Crystals and Displays Vol. 31, Issue 6, Pages: 540-546(2016)
- 作者机构：
  
  1. 张家口学院理学系, 河北张家口 075000
  2. 张家口职业技术学院电气工程系, 河北张家口 075000
- 作者简介：
- 基金信息：
- DOI：10.3788/YJYXS20163106.0540
  CLC： O753.2
- Received：11 December 2015，
  
  Revised：31 December 2015，
  
  Published：05 June 2016
- 稿件说明：
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赵静, 刘飞, 孙静. 用全漏光导波技术测量反射式混合型扭曲向列相液晶盒的指向矢分布[J]. 液晶与显示, 2016,31(6): 540-546

ZHAO jing, LIU Fei, SUN Jing. Measurement of director distribution in reflective mixed-mode twisted nematic liquid crystal cell using fully leaky waveguide technique[J]. , 2016,31(6): 540-546
赵静, 刘飞, 孙静. 用全漏光导波技术测量反射式混合型扭曲向列相液晶盒的指向矢分布[J]. 液晶与显示, 2016,31(6): 540-546 DOI： 10.3788/YJYXS20163106.0540.

ZHAO jing, LIU Fei, SUN Jing. Measurement of director distribution in reflective mixed-mode twisted nematic liquid crystal cell using fully leaky waveguide technique[J]. , 2016,31(6): 540-546 DOI： 10.3788/YJYXS20163106.0540.

摘要

架设了全漏光导波测量系统并对反射式混合型扭曲向列相液晶盒进行了光学测量

氦氖激光经过处理后变为s偏振光或p偏振光

然后通过棱镜耦合使某一偏振状态的光进入液晶盒并采集不同电压下与入射角相关的不同偏振光组合的反射信号。进而结合多层光学44矩阵和弹性连续体理论对液晶盒的不同状态组合的反射信号模拟预测并与实验数据进行拟合

就得到了指向矢在液晶盒内的倾角和扭曲角以及在不同电压下的分布情况。

Abstract

The fully leaky waveguide measurement system has been set up to measure the reflective mixed-mode twisted nematic liquid crystal cell.He-Ne laser was processed to become s polarized light or p polarized light.The polarized lightenters the liquid crystal cell by prism-coupled method and then the reflective signals with the combination of different polarized light that depend on the incident angle were collected under different voltages. The reflective light in different state can be predicted by means of simulation which was based on multilayer optical 44 matrix and elastic continuum theory. Tilt angle

twist angle and distribution of the director in liquid crystal cell under different voltage can be obtained by fitting the experiment data.

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references

YANG F Z, SAMBLE J R. Guided mode studies of liquid crystal layers, Chapter 16 of nanotechnology and NICE device[M]. London, UK:Taloy and Francis Ltd, 2003:1-67.

WELFORD K R, SAMBLES J R, CLARK M G. Guided modes and surface plasmon-polaritons observed with a nematic liquid crystal using attenuated total reflection[J]. Liquid Crystals, 1987, 2(1):91-105.

YANG F Z, SAMBLES J R. Optical characterization of liquid crystals by means of half-leaky guided modes[J]. Journal of the Optical Society of America B, 1993, 10(5):858-866.

YANG F Z, SAMBLES J R. Optical fully leaky mode characterization of a standard liquid-crystal cell[J]. Journal of the Optical Society of America B, 1999, 16(3):488-497.

张志东,司立彬,叶文江,等.反射式液晶显示器的导波研究[J].实验技术与管理,2013,30(10):30-33,43. ZHANG Z D, SI L B, YE W J, et al. Guided wave study of reflective liquid crystal device[J]. Experimental Technology and Management, 2013, 30(10):30-33. (in Chinese)

WU S T, WU C S. Mixed-mode twisted nematic liquid crystal cells for reflective displays[J]. Applied Physics Letters, 1996, 68(11):1455-1457.

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