Materials for inducing alignment of liquid crystals and liquid c

Stock material or miscellaneous articles – Liquid crystal optical display having layer of specified... – With charge transferring layer of specified composition

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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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