Substrate with a liquid crystal polymeric thin film and method f

Details Substrate with a liquid crystal polymeric thin film and method f Substrate with a liquid crystal polymeric thin film and method f

1990-06-04

1991-11-12

Thomas, Alexander S.

Stock material or miscellaneous articles

Liquid crystal optical display having layer of specified...

With charge transferring layer of specified composition

4284735, 359 76, 359103, B32B 3112, B32B 2728

Patent

active

050646974

ABSTRACT:
Disclosed herein is a substrate with a liquid crystal polymeric thin film comprising a substrate, an orientation film formed on said substrate and a thermotropic liquid crystal polymeric thin film formed on said orientation film, in which the orientation film comprises a polyimide having a glass transition point of higher than 300.degree. C. obtained by cyclizing a polyamic acid or its derivative coated on said substrate and applying a rubbing treatment.

REFERENCES:
patent: 4879059 (1989-11-01), Hanyu et al.

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