FLEXOELECTRICALLY CONTROLLED SURFACE BISTABLE SWITCHING IN NEMATIC LIQUID-CRYSTALS
FLEXOELECTRICALLY CONTROLLED SURFACE BISTABLE SWITCHING IN NEMATIC LIQUID-CRYSTALS
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DOI：
10.1063/1.106452
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发表时间：
1992-03-02
影响因子：
4
通讯作者：
DURAND, G
中科院分区：
文献类型：
--
作者：
BARBERI, R;GIOCONDO, M;DURAND, G
本文提出了一种新型的书架型液晶平面开关器件。的表面双稳态控制的外部脉冲电场的定义的极性，打破了表面锚定，并选择从介电和flexoelectric耦合的最终状态。在1 μ m厚的单元上，对于18 V的场，实现了32 μ s的写入时间和300 μ s的光学响应时间。这种简单的电光器件具有可直接与铁电液晶显示器相媲美的特性：双稳性、锐阈值、快速寻址时间。
A new bistable surface switching device using nematic liquid crystals in bookshelflike geometry is presented. The surface bistability is controlled by an external pulsed electric field of defined polarity, which breaks the surface anchoring and selects the final state from dielectric and flexoelectric couplings. A writing time of 32-mu-s and an optical response time of 300-mu-s are achieved, for a field of 18 V across a 1-mu-m thick cell. This simple nematic optical device presents properties directly comparable with those of ferroelectric liquid crystals displays: bistability, sharp threshold, fast address time.