一种新型短节距铁电液晶混合物的电光开关特性

Proceedings of 1994 IEEE International Symposium on Applications of Ferroelectrics Pub Date : 1994-08-07 DOI:10.1109/ISAF.1994.522491

K. Raina, H. Coles

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引用次数: 0

摘要

研究了短间距(/spl rho//sub 0/=0.43 /spl mu/m)、大自发极化(P/sub s/=90 nC/cm/sup 2/)铁电液晶混合物的电光效应。薄膜形式的材料被夹在涂有聚酰亚胺的透明导电玻璃板之间。在无剪切电场作用下，样品排列呈平面排列。倾斜回路在低电压下出现，然后在高电压下移除，以获得“书架”结构，从而获得更高的对比度。该材料具有双稳定性，快速开关时间(8 V//spl mu/m时40 /spl mu/sec)和多路可复用性。这些参数对快速电光液晶显示装置的工作是有用的。

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Electro-optic switching behaviour of a novel shortpitch ferroelectric liquid crystal mixture

Electro-optic effects have been studied in a shortpitch (/spl rho//sub 0/=0.43 /spl mu/m), large spontaneous polarization (P/sub s/=90 nC/cm/sup 2/) ferroelectric liquid crystal mixture. The material in the form of thin films was sandwiched between polyimide coated transparent conducting glass plates. The sample alignment was planar in an electric field without shearing. Disclination loops appeared at low voltages and were then removed at higher voltages to obtain a 'bookshelf' structure which gives higher contrast. This material shows bistability, fast switching times (40 /spl mu/sec at 8 V//spl mu/m) and multiplexability. These are useful parameters for the operation of a fast electro-optic liquid crystal display device.

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Proceedings of 1994 IEEE International Symposium on Applications of Ferroelectrics

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