Liquid crystal display means

Details Liquid crystal display means Liquid crystal display means

1981-05-22

1983-05-17

Corbin, John K.

G02F 1137

Patent

active

043837387

ABSTRACT:
A liquid crystal display means which employs a mixture of a pleochroic dye and cholesteric or chiral, nematic liquid crystals as a dielectric in a cell whose optical density may be changed by application thereto of an electric field, and in which the mixture contains a substance which makes the characteristic pitch of the liquid crystals such that an improved switching response is achieved, and the molecular structure of the liquid crystals is such that improved contrast is achieved, is disclosed.

REFERENCES:
patent: 3551026 (1970-12-01), Heilmeir
patent: 3833287 (1974-09-01), Taylor et al.
patent: 3975286 (1976-08-01), Oh
patent: 4143947 (1979-03-01), Aftergut et al.

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