Optical: systems and elements – Holographic system or element – Using a hologram as an optical element
Patent
1992-10-29
1994-06-28
Gross, Anita P.
Optical: systems and elements
Holographic system or element
Using a hologram as an optical element
359100, 428 1, G02F 11337, G02F 113, C09K 1900
Patent
active
053252195
ABSTRACT:
A liquid crystal device improved in contrast and freeness from flickering and after image is formed by disposing a liquid crystal between a pair of substrates, at least one of which has an alignment film of a polyimide having a fluoroalkyl chain group as a side chain. The fluoroalkyl chain group may be contained in a diamine-originated moiety or a carboxylic acid-originated moiety of the polyimide.
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: 4883344 (1989-11-01), Okada et al.
patent: 5129727 (1992-07-01), Hanyu et al.
patent: 5173342 (1992-12-01), Sato et al.
patent: 5186985 (1993-02-01), Estes et al.
patent: 5188870 (1993-02-01), Brosig
patent: 5192596 (1993-03-01), Hanyu et al.
patent: 5250330 (1993-10-01), Asaoka et al.
patent: 5268780 (1993-12-01), Hanyu et al.
Orihara et al, "Effect of a Polyimide Coat on the Layer Structure in a Surface-Stabilized Ferroelectric Liquid Crystal Cell", Japanese Journal of Applied Physics, vol. 28, No. 4 (Apr. 1989), pp. L676-L678.
Asaoka Masanobu
Hanyu Yukio
Canon Kabushiki Kaisha
Gross Anita P.
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