Liquid crystal cell with improved alignment

Details Liquid crystal cell with improved alignment Liquid crystal cell with improved alignment

1974-10-10

1976-06-29

Webster, Robert J.

G02F 113

Patent

active

039663051

ABSTRACT:
In a liquid crystal display device the homogeneous alignment of twisted nematic liquid crystal molecules is accomplished by providing a first thin dielectric layer on the inner surfaces of each of the spaced apart glass plates covering complementary patterns of transparent electrode material. Applied to the dielectric layer on each plate is a second thin film of aligning material such as silicon monoxide. The first dielectric layer provides maximum isolation to the liquid crystal material and a uniform layer for subsequent application of the aligning film.

REFERENCES:
patent: 3612654 (1971-10-01), Klein et al.
patent: 3809456 (1974-05-01), Goldmacher
patent: 3912366 (1975-10-01), Sprokel
patent: 3932026 (1976-01-01), Sprokel
Gladstone et al., IBM Tech. Discl. Bulletin, vol. 14, No. 5, Oct., 1971, pp. 472-473.
DuBois et al., Applid Physics Letters, vol. 24, No. 7, Apr. 1, 1974, p. 297.

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