Roughening surfaces for homeotropic layers of smectic LCD's

Details Roughening surfaces for homeotropic layers of smectic LCD's Roughening surfaces for homeotropic layers of smectic LCD's

1980-11-21

1983-10-25

Corbin, John K.

350340, 350350S, G02F 1137, G02F 1133

Patent

active

044114940

ABSTRACT:
An internally electroded smectic liquid crystal display cell having a layer of a smectic material sandwiched between two electroded plates having electrodes that overlap at least in part wherein each said electrode is covered with an electrically insulating coherent layer whose surface has been treated to provide it with a rough texture provides a liquid crystal display cell of low voltage threshold characteristics.

REFERENCES:
patent: 3914020 (1975-10-01), Helfrich
patent: 4038439 (1977-07-01), Gibson et al.
patent: 4139273 (1979-02-01), Crossland et al.
patent: 4232947 (1980-11-01), Funada et al.
Coates et al., "Electrically Induced Scattering Textures in Smectic A Phases and Their Electrical Reversal", J. Phys. D: Appl. Phys., vol. 11, No. 14, Oct. 1, 1978.
Guyon et al., "Anchoring and Alignment Properties of Liquid Crystals", Nonemissive Electronic Displays, Plenum Press, New York, 1976, pp. 132-137.

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