Method for driving liquid crystal element employing ferroelectri

Details Method for driving liquid crystal element employing ferroelectri Method for driving liquid crystal element employing ferroelectri

Filed on

1983-04-13

Date issued

1985-04-02

Examiner

Corbin, John K.

Other Related Categories

350332, 350333, G02F 113

Type

Patent

Status

active

Patent number

045084297

Description

ABSTRACT:
A method for driving a liquid crystal element including a ferroelectric liquid crystal sandwiched between a pair of substrates having electrodes on their opposite surfaces is disclosed. A pulse voltage for defining the light transmitting state of the liquid crystal element is applied to the ferroelectric liquid crystal. Before and/or after the application of the pulse voltage, the ferroelectric liquid crystal is applied with a voltage signal which renders the average value of voltages applied to the ferroelectric liquid crystal equal to zero.

REFERENCES:
patent: 4040720 (1977-08-01), York
patent: 4367924 (1983-01-01), Clark et al.
Meyer, R. B. "Ferroelectric Liquid Crystals; A Review", Molecular Crystals & Liq. Crystals, vol. 40 (1977), pp. 33-48.
Clark, N. A. et al. "Submicrosecond Bistable Electrooptic Switching in Liquid Crystals," Appl. Phys. Lett., vol. 36, No. 11, (Jun. 1980), pp. 899-901.

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