Compositions – Liquid crystal compositions – Containing nonsteryl liquid crystalline compound of...
Patent
1987-11-12
1989-10-17
Gron, Teddy S.
Compositions
Liquid crystal compositions
Containing nonsteryl liquid crystalline compound of...
2522995, 2522996, 25229963, 25229966, 350350R, C09K 1906, C09K 194, C09K 1930, C09K 1934
Patent
active
048745430
ABSTRACT:
A liquid crystal composition includes a tolan liquid crystal compound having a large optical anisotropy, another tolan liquid crystal compound having a large optical anisotropy and a high N-I point, a low-viscosity polycyclic liquid crystal compound (wherein the rings are directly bonded together) having an alkyl or alkoxy group, and a polycyclic liquid crystal compound (wherein the rings are directly bonded together) having a large optical anisotropy and a cyano group with a large dielectric anisotropy .DELTA..epsilon.. These compounds are mixed so as to obtain a positive dielectric anisotropy.
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Takatsu, H., et al., Mol. Cryst. Liq. Cryst., vol. 141(3-4), pp. 279-287 (1986).
Casio Computer Co. Ltd.
Gron Teddy S.
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