Threshold property of a nematic liquid crystal cell with two grating surface substrates

被引：0

作者：

Ye Wen-Jiang ^{[1
]}

Xing Hong-Yu ^{[1
]}

Yang Guo-Chen ^{[1
]}

Yuan Meng-Yao ^{[2
]}

机构：

[1] Hebei Univ Technol, Sch Sci, Tianjin 300401, Peoples R China

[2] Beijing Inst Technol, Coll Sci, Beijing 100081, Peoples R China

来源：

CHINESE PHYSICS B | 2009年 / 18卷 / 01期

基金：

中国国家自然科学基金;

关键词：

grating surface; equivalent anchoring energy formula; threshold property; threshold voltage; ANCHORING ENERGY; ALIGNMENT;

D O I：

暂无

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A grating surface can drive the liquid crystal molecules to orientate along the direction parallel or vertical to the projected plane of the grating surface. The nematic liquid crystal (NLC) cell manufactured with two pre-treated grating surface substrates may realize the vertical display, parallel display and twist display. In this paper, the threshold property of this NLC cell is investigated systematically. With the Frank elastic theory and the equivalent anchoring energy formula of grating surface substrate, the analytic expressions of the threshold voltage related to three displays are obtained, which are dependent on their geometrical parameters such as amplitude 6 and pitch A of the grating surface substrate. For a certain anchoring strength, the threshold voltage increases or decreases with the increase of the value delta/lambda of the different displays.

引用

页码：238 / 245

页数：8

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