Materials for inducing alignment of liquid crystals and liquid c

Details Materials for inducing alignment of liquid crystals and liquid c Materials for inducing alignment of liquid crystals and liquid c

1998-12-23

2000-08-15

Thomas, Alexander

Stock material or miscellaneous articles

Liquid crystal optical display having layer of specified...

With charge transferring layer of specified composition

349123, 4284735, 528125, 528170, 528172, 528176, 528171, 528185, 528188, 528220, 528353, G02F 11337

Patent

active

061033227

ABSTRACT:
The present invention provides novel polyamic acids and polyimide optical alignment layers for inducing alignment of a liquid crystal medium. The novel compositions comprise crosslinking diamines containing a C.sub.3 -C.sub.20 linear or branched hydrocarbon chains containing 1 to 4 carbon-carbon double bonds. The invention further describes liquid crystal displays comprising the novel polyimide optical alignment layers.

REFERENCES:
patent: 4974941 (1990-12-01), Gibbons et al.
patent: 5032009 (1991-07-01), Gibbons et al.
patent: 5276132 (1994-01-01), Nishikawa, et al.
patent: 5731405 (1998-03-01), Gibbons et al.

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