Nematic liquid crystal compositions

Details Nematic liquid crystal compositions Nematic liquid crystal compositions

1974-08-30

1976-11-02

Padgett, Benjamin R.

Compositions

Liquid crystal compositions

350150, 350160LC, C09K 334, G02F 113

Patent

active

039896390

ABSTRACT:
When azo type and/or azoxy type compounds having specific structures are incorporated into a nematic liquid crystal material, a liquid crystal composition having positive dielectric anisotropy and a broad mesomorphic range extending above and below room temperature can be obtained. An electro-optical device in which a thin layer of this liquid crystal composition is filled and supported between two substrates can be used for light modulation and display.

REFERENCES:
patent: 3773747 (1973-11-01), Steinstrasser
patent: 3796479 (1974-03-01), Helfrich et al.
patent: 3815972 (1974-06-01), Hsieh
patent: 3881806 (1975-05-01), Suzuki
patent: 3893994 (1975-07-01), Steinstrasser
Alder, C. J. et al., J. Phys. D: Appl. Phys., vol. 6, No. 5, pp. L33-L36 (Mar. 20, 1973).
Gray, G. W. et al., Liquid Crystals & Plastic Crystals, vol. 1, Ellis Horwood Ltd., London, pp. 153-174 (1974).

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