Liquid crystal device

Details Liquid crystal device Liquid crystal device

1992-08-06

1994-07-19

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, 359 78, G02F 11337

Patent

active

053308034

ABSTRACT:
A liquid crystal device is constituted by a pair of substrates, at least one of which has an alignment film thereon, and a liquid crystal disposed between the substrates, The alignment film is formed of a resin including a first polyamide represented by formula (I) below and a second polyamide represented by formula (II) below: ##STR1## wherein R.sub.1 -R.sub.4 independently denote a group of CF.sub.3 (CF.sub.2).sub.1 (CH.sub.2).sub.m wherein l and m are integers satisfying 1.gtoreq.0 and m .gtoreq.O; A.sub.1 and A.sub.2 are mutually different divalent organic residues; and n1 and n2 are integers satisfying n1.gtoreq.2 and n2 .gtoreq.2.

REFERENCES:
patent: 4367924 (1983-01-01), Clark et al.
patent: 4561726 (1985-12-01), Goodby et al.
patent: 4655561 (1987-04-01), Kanbe et al.
patent: 5129727 (1992-07-01), Hanyu et al.

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