Ferroelectric liquid crystal devices having a high surface tilt

Details Ferroelectric liquid crystal devices having a high surface tilt Ferroelectric liquid crystal devices having a high surface tilt

1988-12-01

1991-03-05

Miller, Stanley D.

350341, 350346, G02F 113

Patent

active

049972642

ABSTRACT:
A liquid crystal display device with a fast switching time and bistability comprises a layer of a chiral smectic material between cell walls. Electrodes on the walls allow the material to be switched between two states by application of positive and negative voltage pulses. Rapid switching is due to the ferro electric effect. Good alignment and uniformity of display is achieved by using an alignment giving a high, 5.degree.-45.degree., tilt to the liquid crystal molecules. Alignment may be provided by oblique evaporate of silicon monoxide at a glancing angle of up to 15.degree..

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