Backflow in HAN-IPS Liquid Crystal Cell

ZHENG Gui-li; JIANG Li; ZHANG Zhi-dong

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Backflow in HAN-IPS Liquid Crystal Cell

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

- Backflow in HAN-IPS Liquid Crystal Cell
- Chinese Journal of Liquid Crystals and Displays Vol. 25, Issue 6, Pages: 771-775(2010)
- 作者机构：
  
  河北工业大学理学院天津,300401
- 作者简介：
- 基金信息：
- DOI：
  CLC： O753+.2
- Received：29 December 2009，
  
  Revised：10 February 2010，
  
  Published Online：20 December 2010，
  
  Published：20 December 2010
- 稿件说明：
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郑桂丽, 姜丽, 张志东. HAN-IPS液晶盒的引流效应[J]. 液晶与显示, 2010,25(6): 771-775

ZHENG Gui-li, JIANG Li, ZHANG Zhi-dong. Backflow in HAN-IPS Liquid Crystal Cell[J]. , 2010,25(6): 771-775
郑桂丽, 姜丽, 张志东. HAN-IPS液晶盒的引流效应[J]. 液晶与显示, 2010,25(6): 771-775 DOI：

ZHENG Gui-li, JIANG Li, ZHANG Zhi-dong. Backflow in HAN-IPS Liquid Crystal Cell[J]. , 2010,25(6): 771-775 DOI：

摘要

根据Erickson-Leslie流体动力学理论

研究了混合排列向列相-共面转换液晶盒的引流效应。在强锚定边界条件下

经过理论推导

得出液晶指向矢与流速的关系方程

进一步通过数值计算得出指向矢分布与时间的关系。发现引流效应加快了指向矢达到平衡态的速度

而且破坏了指向矢分布的瞬态对称性

特别在加电压的初始几毫秒这种现象非常明显。

Abstract

Based on the Erickson-Leslie continuum theory

the hybrid aligned nematic in-plane switching (HAN-IPS) liquid crystal cell is investigated with considering the backflow effect. The relation of liquid crystal director and flow velocity is obtained under the condition of strong surface anchoring. The results of computer simulation show that the backflow effect speeds up achieving equilibrium state and breaks the symmetry of the director configuration. The phenomenon is very obvious especially in the initial milliseconds after switching on the applied voltage.

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references

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