Diamino compounds and liquid crystal aligning films

Details Diamino compounds and liquid crystal aligning films Diamino compounds and liquid crystal aligning films

1995-06-06

1996-08-13

Thomas, Alexander S.

Stock material or miscellaneous articles

Liquid crystal optical display having layer of specified...

With charge transferring layer of specified composition

359 75, 568586, 568721, 528125, 528126, 564322, 564430, G02F 11337

Patent

active

055454445

ABSTRACT:
The present invention is to provide new diamino compounds useful for raw materials for production of liquid crystal aligning films that have excellent aligning properties and uniform and high pretilt angles over the whole display surface of wide substrates without afterimage phenomenons. The liquid crystal aligning films are constituted by a certain polyimide having as a principal constituent a structure unit represented by the formula; ##STR1##

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