Nematic liquid crystalline composition

Details Nematic liquid crystalline composition Nematic liquid crystalline composition

1983-10-05

1985-08-20

Gron, Teddy S.

Compositions

Liquid crystal compositions

Containing pleochroic dye

350349, 260380, C09K 334, G02F 113

Patent

active

045363200

ABSTRACT:
A composition for a liquid crystal display containing at least one nematic liquid crystalline material having dissolved therein at least one anthraquinonic dye of the formula ##STR1## wherein R is a linear or branched C.sub.7-15 alkyl group.

REFERENCES:
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patent: 3960751 (1976-06-01), Moriyama et al.
patent: 4154746 (1979-05-01), Huffman
patent: 4232950 (1980-11-01), Benham
patent: 4273929 (1981-06-01), Boller et al.
patent: 4304683 (1981-12-01), Morinaka et al.
patent: 4360447 (1982-11-01), Morinaka et al.
patent: 4363743 (1982-12-01), Moeller et al.
patent: 4376715 (1983-03-01), Cognard
patent: 4395350 (1983-07-01), Boller et al.
Cognard, J., et al., "Colorants Anthraquinoniques Stables des Parametre D'Ordre Eleve en Solution Dans les Cristaux Liquides", Mol. Cryst. Liq. Cryst., (1981), vol. I, pp. 1 to 9.
Saeva, Franklin D., "Liquid Crystal Display", Xerox Disclosure Journal, vol. 1, Nos. 9-10, (Sep.-Oct. 1976), pp. 61 and 62.

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