Compositions – Liquid crystal compositions – Containing nonsteryl liquid crystalline compound of...
Patent
1990-04-05
1991-06-04
Maples, John S.
Compositions
Liquid crystal compositions
Containing nonsteryl liquid crystalline compound of...
25229901, 25229963, 25229967, 25229966, 350350R, C09K 1934
Patent
active
050211897
ABSTRACT:
The present invention provides a liquid crystal composition wherein properties required in the super twist birefringence effect mode (SBE mode), particularly the high transparent point, low viscosity, and controllable optical isotropic value (.DELTA.n) are kept well balanced, the steepness of the voltage-transmission property is improved, and the value of N.sub.max that indicates high multiplex properties is high.
A liquid crystal composition is provided containing a first component represented by the general formula: ##STR1## wherein R.sup.1 and R.sup.2 each represent an alkyl group having 1 to 8 carbon atoms,
and a second component represented by the general formula: ##STR2## wherein R.sup.3 represents an alkyl group having 1 to 8 carbon atoms, or an alkenyl group having 2 to 8 carbon atoms, R.sup.4 represents H or F, R.sup.5 represents a CN-group or F, and ##STR3## represents ##STR4## and a liquid crystal display device that uses the same.
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Isoyama Toyoshiro
Matsushita Tetsuya
Saito Hideo
Sawada Shin-ichi
Chisso Corporation
Maples John S.
Treanor Richard
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