Liquid crystal compound

Details Liquid crystal compound Liquid crystal compound

1993-05-25

1994-07-19

Wu, Shean

Compositions

Liquid crystal compositions

Containing nonsteryl liquid crystalline compound of...

25229901, 25229967, 560 59, 560 63, 560 65, 560 86, 560 89, 560100, C09K 1932, C09K 1920, C07C 6976

Patent

active

053306783

ABSTRACT:
Disclosed are novel liquid crystal compounds containing a naphthalene ring, having an excellent light leaking ratio at tristable states, and represented by the following formula: ##STR1## wherein R.sub.1 is a C.sub.6 -C.sub.16 linear alkyl group or C.sub.6 -C.sub.16 linear alkoxy group, R.sub.2 is a C.sub.4 -C.sub.12 linear alkyl group, R.sub.3 is a C.sub.1 -C.sub.3 alkyl group or C.sub.1 -C.sub.3 haloalkyl group, and C having an asterisk indicates an asymmetric atom.
The liquid crystal compounds are expected to find their applications in electrooptical devices and liquid crystal displays utilizing a S*.sub.(3) liquid crystal phase which shows tristable states.

REFERENCES:
patent: 4921632 (1990-05-01), Nakamura et al.
patent: 4973738 (1990-11-01), Suzuki et al.
patent: 5141668 (1992-08-01), Nishiyama et al.
E. Chin, J. W. Goodby, "Molecular Crystals and Liquid Crystals" (Inc. Nonlinear Optics), vol. 141, 1986, pp. 311-320, Protection-Deprotection Method for the Synthesis of Substituted Benzoyloxybenzoates.

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