Liquid crystal display device

Details Liquid crystal display device Liquid crystal display device

1981-05-06

1983-08-23

Gron, Teddy S.

Compositions

Radioactive compositions

Nuclear reactor fuel

25229901, 2522991, 350349, G02F 1133, C09K 334, G02F 113

Patent

active

044000596

ABSTRACT:
A color liquid crystal display device wherein a nematic liquid crystal to which a dichroic dye and an optically active substance have been added is used as the liquid crystal layer and the amount of said optically active substance added is so selected as to fall in a range making steep the threshold voltage characteristics of the liquid crystal.

REFERENCES:
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patent: 4143947 (1979-03-01), Aftergut et al.
patent: 4241344 (1980-12-01), Kmetz et al.
patent: 4252417 (1981-02-01), Scheffer et al.
patent: 4257682 (1981-03-01), Suzuki et al.
patent: 4278328 (1981-07-01), Mukoh et al.
patent: 4281902 (1981-08-01), Kmetz et al.
patent: 4281903 (1981-08-01), Gharadjedaghi
patent: 4291949 (1981-09-01), Wada et al.
Aftergut, S., et al., SID 77 Digest, pp. 68-69 (1977).
Gharadjedaghi, Mol. Cryst. Liq. Cryst., vol. 68, pp. 127-135 (1981).
White, D. L., et al., J. Appl. Physics, vol. 45, No. 11, pp. 4718-4723 (1974).
Cox, R. J., Mol. Cryst. Liq. Cryst., vol. 55, pp. 1-32 (1979).
Scheffer, T. J., et al., "Guest-Host Displays," Liquid Crystal Devices, Sprokel, G. Edit., Plenum Press, N.Y., pp. 173-198 (1980), presented at Symposium on Physics and Chemistry of L. C. Devices, IBM, San Jose, Calif., Feb. 7-8, 1979.

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