Nematic liquid crystal compositions

Details Nematic liquid crystal compositions Nematic liquid crystal compositions

1976-04-23

1977-09-13

Padgett, Benjamin R.

Compositions

Liquid crystal compositions

252408, 350160LC, C09K 334, G02F 113

Patent

active

040480887

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: 3796479 (1974-03-01), Helfrich et al.
patent: 3815972 (1974-06-01), Hsieh
patent: 3983049 (1976-09-01), Aftergut et al.
patent: 3988054 (1976-10-01), Yaguchi et a.
Dave, J. S., et al., J. Chem. Soc., part 4, pp. 4305-4309 (1955).
Dave, J. S., et al., Mol. Cryst. Liq. Cryst., vol. 2, pp. 125-134 (1966).
Dave, J. S., et al., J. Chem. Soc.(A), pp. 1473-1478 (1967).

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