Compositions – Liquid crystal compositions – Containing nonchiral aligning agents
Patent
1987-08-31
1989-11-07
Gron, Teddy S.
Compositions
Liquid crystal compositions
Containing nonchiral aligning agents
25229901, 350340, 350341, 350350S, 458 1, G02F 113, C09K 1956
Patent
active
048790591
ABSTRACT:
A liquid crystal device comprises a pair of substrates and a ferroelectric liquid crystal disposed between the substrates. At least one of the pair of substrates has an alignment control film formed of an aliphatic polyimide resin having a function of aligning said plurality of layers preferentially in one direction. The aliphatic polyimide resin film stably provides a uniform alignment state with a large tilt angle than a conventional alignment control film of polyimide or polyvinyl alcohol over a long period. The liquid crystal device also provides a color tone of black in its darkest state.
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Chem. Abs., vol. 99, No. 550 (1983), 203665n.
Futami Yukiko
Hanyu Yukio
Canon Kabushiki Kaisha
Gron Teddy S.
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