Liquid-crystal composition

Details Liquid-crystal composition Liquid-crystal composition

1986-08-15

1988-11-29

Gron, Teddy S.

Compositions

Liquid crystal compositions

Containing nonsteryl liquid crystalline compound of...

2522995, 25229963, 25229966, G02F 113, C09K 1934

Patent

active

047880007

ABSTRACT:
A liquid-crystal composition to be used in a multiplex-driving system in a twisted nematic (TN) type liquid-crystal display devices is extremely superior in its display characteristics, and is able to meet sufficiently the demands to increase the information content of various liquid-crystal display devices of high-level multiplexing operation. The liquid-crystal composition is more considerable in its usefulness than the validity thereof in half-tone display especially when it is used in a liquid-crystal television.
The liquid crystal composition having a positive dielectric anisotropy in the nematic phase, comprises each 3 wt % or more of 2-(4-alkoxyphenyl)-5-alkylpyrimidine compound and of a cyanobiphenyl compound.

REFERENCES:
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patent: 4180475 (1979-12-01), Schadt et al.
patent: 4372871 (1983-02-01), Toriyama et al.
patent: 4391730 (1983-07-01), Kuschel et al.
patent: 4564694 (1986-01-01), Hirai et al.
patent: 4643841 (1987-02-01), Ishii et al.
patent: 4722804 (1988-02-01), Ishii et al.

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