Liquid crystal color display devices

Details Liquid crystal color display devices Liquid crystal color display devices

1976-04-20

1978-06-27

Bauer, Edward S.

350347, G02F 113

Patent

active

040971287

ABSTRACT:
A liquid crystal color display device which comprises a first electrode; a first substrate whose surface has a property of orientating the molecules of a nematic liquid crystal parallel with said surface; a second electrode; a second substrate whose surface has a property of orientating the molecules of the nematic liquid crystal perpendicular to said surface; a nematic liquid crystal interposed between the first and second substrates; at least one polarizer; and a means whereby the birefringence of the liquid crystal cell is changed to display various colors.

REFERENCES:
patent: 3854793 (1974-12-01), Kahn
patent: 3914020 (1975-10-01), Helfrich
patent: 3915553 (1975-10-01), Adams et al.
patent: 3915554 (1975-10-01), Maezawa
patent: 3967881 (1976-07-01), Moriyama et al.
Kahn: "Electric-Field Induced Orientational Deformation of Nematic Liquid Crystals: Tunable Birefringence," Applied Physics Letters, vol. 20, pp. 199-201, Mar. 1, 1972.
Raynes: "Improved Contrast Uniformity in Twisted Nematic Liquid-Crystal Electro-Optic Display Devices," Electronics Letters, pp. 141-142, vol. 10, May 2, 1974.

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