Improvement of voltage-dependent dynamics through an oblique electric field in vertically aligned liquid crystal director surrounded by patterned polymer walls

被引：8

作者：

Kim, Sang Gyun

Kim, Youn Sik

Srivastava, Anoop Kumar

Oh, Sae Tae

Lee, Gi Dong ^{[1
]}

Lee, Seung Hee

机构：

[1] Chonbuk Natl Univ, Res Ctr Adv Mat Dev, BK21 Polymer BIN Fus Res Team, Chonju 561756, South Korea

[2] Dong A Univ, Dept Elect Engn, Pusan 607735, South Korea

来源：

CURRENT APPLIED PHYSICS | 2008年 / 8卷 / 02期

关键词：

liquid crystal display; vertical alignment; polymer wall; oblique electric field;

D O I：

10.1016/j.cap.2007.06.004

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Voltage-dependent liquid crystal textures in a homeotropically aligned nematic liquid crystal (LC) device, where the chiral-doped liquid crystal with negative dielectric anisotropy is locked by polymer walls with crossed polarizers, have been investigated. The device shows wide viewing angle characteristics with advantages that it is free from rubbing process and spacer. The time-resolved LC textures show that they are not stable enough during an instantaneous reorientation of LC when a voltage is applied. To improve dynamic characteristics, we propose advanced cell structure where the bend and twist deformation is controlled by polymer wall plus an oblique electric field through patterned electrode. Consequently, dynamic characteristics of the device are greatly improved. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：142 / 145

页数：4

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