Ferroelectric liquid crystal display device with polyimide orien

Details Ferroelectric liquid crystal display device with polyimide orien Ferroelectric liquid crystal display device with polyimide orien

1990-05-24

1993-04-13

Sikes, William L.

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

428 1, G02F 11337, C09K 1900

Patent

active

052027791

ABSTRACT:
A liquid crystal display device comprising a pair of opposite transparent substrates, an orientation film provided on the facing side of each of said substrates via a transparent electode, and ferroelectric liquid crystals capable of exhibiting a smectic phase sandwiched between said pair of substrates, said orientation film being made of a polyimide resin formed from bis(4-aminocyclohexyl) methane as a base component and an aromatic tetracarboxylic acid anhydride having one or two benzene rings as an acid component.

REFERENCES:
patent: 4405208 (1983-09-01), Shirai
patent: 4494824 (1985-01-01), Nakamura et al.
patent: 4593977 (1986-06-01), Takamatsu et al.
patent: 4634228 (1987-01-01), Iwasaki et al.
patent: 4759614 (1988-07-01), Yokokura et al.
patent: 4879059 (1989-11-01), Hanyu et al.
Chemical Abstracts, vol. 99 No. 14, Oct. 3, 1983, p. 83, Abstract #106883x, Columbus, Ohio, US.
JP-A-58 017 (Toray Industries Inc.) Feb. 1, 1983.

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