Effect of Effective Rotational Viscosity on Dynamics of Hybrid Alignment Nematic Liquid Crystals

ZHOU Xuan; ZHANG Zhi-dong; SUN Yu-bao

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Effect of Effective Rotational Viscosity on Dynamics of Hybrid Alignment Nematic Liquid Crystals

Material Physics & Chemistry | 更新时间：2020-08-12

- Effect of Effective Rotational Viscosity on Dynamics of Hybrid Alignment Nematic Liquid Crystals
- Chinese Journal of Liquid Crystals and Displays Vol. 24, Issue 2, Pages: 168-173(2009)
- 作者机构：
  
  河北工业大学理学院,天津 300401,E-mail:zhouxuan198536@163.com
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN141.9
- Received：06 August 2008，
  
  Revised：02 January 1900，
  
  Published Online：30 April 2009，
  
  Published：30 April 2009
- 稿件说明：
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周璇;张志东;孙玉宝. 有效粘滞系数对混合排列向列相液晶动力学的影响[J]. 液晶与显示, 2009,24(2): 168-173

ZHOU Xuan;ZHANG Zhi-dong;SUN Yu-bao. Effect of Effective Rotational Viscosity on Dynamics of Hybrid Alignment Nematic Liquid Crystals[J]. 液晶与显示, 2009,24(2): 168-173
周璇;张志东;孙玉宝. 有效粘滞系数对混合排列向列相液晶动力学的影响[J]. 液晶与显示, 2009,24(2): 168-173 DOI：

ZHOU Xuan;ZHANG Zhi-dong;SUN Yu-bao. Effect of Effective Rotational Viscosity on Dynamics of Hybrid Alignment Nematic Liquid Crystals[J]. 液晶与显示, 2009,24(2): 168-173 DOI：

摘要

以液晶动力学理论为基础

对混合排列向列相液晶的动力学行为进行了研究。在严格考虑引流效应、通过有效粘滞系数

eff

考虑引流效应和完全忽略引流效应这3种条件下

分别建立了指向矢运动方程。通过对加电压和撤电压过程的数值模拟

给出了有效粘滞系数

eff

对液晶指向矢分布及有效折射率的影响。

Abstract

The dynamic behavior of hybrid alignment nematic (HAN)liquid crystals is investigated based upon the dynamic theory of liquid crystals. The equations for the director are built in three different conditions;

i.e.

first

backflow effect is take into account rigorously; second

the backflow is consi-dered by the effective rotational viscosity

eff

; third

the backflow effect is neglected directly. Through computer simulation to the progress of switching up the voltage and switching off the vol-tage

the effect of the effective rotational viscosity

eff

on the director profiles and the effective refractive index of liquid crystal was obtained.

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references

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. 张志东,梁兆颜,张德贤,等.混合排列向列液晶盒的响应时间常数 [J]. 液晶与显示, 1997,12(4):244-248.

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ZHENG Gui-li

JIANG Li

ZHANG Zhi-dong

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School of Science, Hebei University of Technology

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