Liquid crystal display device

Details Liquid crystal display device Liquid crystal display device

1993-12-07

1995-06-06

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

054221480

ABSTRACT:
A liquid crystal display device wherein an orientation film is formed from a polyimide which is obtained by polymerization of an amine of the formula (I) ##STR1## and 1,2,4,5-benzenetetracarboxylic acid dianhydride as main components and ferroelectric liquid crystals are oriented in liquid crystal cell using said orientation film.

REFERENCES:
patent: 3994567 (1976-11-01), Matsuo et al.
patent: 4367924 (1983-01-01), Clark et al.
patent: 4720173 (1988-01-01), Okada et al.
M. Glogarova and J. Pavel, J. Physique 45 (Jan. 1984) 143-149.
Sato, et al.: The twelfth Liquid Crystal Symposium (Nagoya), 1F16 (Jan. 1986) pp. 40-41.
T. P. Rieker, et al., "Chevron Local Layer Structure in Surface-Stabilized Ferroelectric Smectic-C Cells", Physical Review Letter, vol. 59, No. 23, pp. 2658-2661, Dec. 1987.

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