Liquid crystal display device having contrast-enhancing dye

Details Liquid crystal display device having contrast-enhancing dye Liquid crystal display device having contrast-enhancing dye

1983-04-22

1986-07-22

Corbin, John K.

G02F 113

Patent

active

046015477

ABSTRACT:
A liquid crystal composition for use in negative display, transmission-type, liquid crystal display elements, said composition comprising a nematic liquid crystal having positive dielectric anisotropy and a positive dichroic dye. Liquid crystal display devices comprising liquid crystal display cells including nematic liquid crystals having positive dielectric anisotropy and positive dichroic dyes are disclosed.

REFERENCES:
patent: 4105299 (1978-08-01), Huffman et al.
patent: 4211473 (1980-07-01), Shanks
patent: 4359398 (1982-11-01), Cole, Jr. et al.
patent: 4383738 (1983-05-01), Funada et al.
patent: 4389329 (1983-06-01), Boller et al.

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