Liquid crystal display device

Details Liquid crystal display device Liquid crystal display device

1989-06-01

1992-09-15

Hille, Rolf

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359 77, 359 78, 359106, 428 1, G02F 113

Patent

active

051483009

ABSTRACT:
A liquid crystal display device which comprises a pair of oppositely facing electrode substrates formed an alignment film on their surface and a liquid crystal filling the space between said electrode substrates, wherein the alignment film comprises an alicyclic polyimide obtained by polycondensation of a tetracarboxylic acid and a diamine, at least one of which is alicyclic and useful for a twisted nematic liquid crystal display device.

REFERENCES:
patent: 3994567 (1976-11-01), Matsuo et al.
patent: 4068923 (1978-01-01), Toida
patent: 4252414 (1981-02-01), Kinugawa et al.
patent: 4405208 (1983-09-01), Shirai
patent: 4494824 (1985-07-01), Nakamura et al.
patent: 4593977 (1986-06-01), Takamatsu
patent: 4759614 (1988-07-01), Yokokura et al.
patent: 4879059 (1989-11-01), Hanyu et al.
patent: 4958001 (1990-09-01), Kikuchi et al.

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