COUPLED DIRECTOR AND LAYER REORIENTATION IN LAYER TILTED FERROELECTRIC SMECTIC LIQUID-CRYSTAL CELLS

被引：13

作者：

GIESSELMANN, F

ZUGENMAIER, P

机构：

来源：

MOLECULAR CRYSTALS AND LIQUID CRYSTALS SCIENCE AND TECHNOLOGY SECTION A-MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 1993年 / 237卷

关键词：

FERROELECTRIC LIQUID CRYSTALS; SSFLC CELLS; SWITCHING DYNAMICS; ELECTROOPTICS; COMPUTER SIMULATION;

D O I：

10.1080/10587259308030129

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

A reversible reorientation of smectic layers in surface stabilized ferroelectric liquid crystal (SSFLC) cells with layer tilted (chevron) geometries was found by electrooptical investigations. The reorientation of the layers superimposes the reorientation of the director along the S(C)* tilt cone and is suppressed, if the layers are irreversibly fixed in a bookself geometry by high electric fields. Based on a potential density expansion, a dynamical model of a coupled director and layer reorientation is proposed, which leads to excellent agreement with the electrooptical behaviour of the system investigated. The fit of the model to experimental data supplies a simultaneous determination of several material and cell constants. Basic electrooptical parameters, as contrast, switching times and optical overshoot, are reproduced correctly.

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页码：121 / 143

页数：23

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