Smectic liquid crystal composition for recording display medium,

Details Smectic liquid crystal composition for recording display medium, Smectic liquid crystal composition for recording display medium,

1996-05-15

1999-08-03

Wu, Shean C.

Compositions

Liquid crystal compositions

Containing nonsteryl liquid crystalline compound of...

25229964, 25229965, 25229967, 349 2, 349 86, 349 89, 428 1, C09K 1912, C09K 1920, G02F 113

Patent

active

059321377

ABSTRACT:
A recording display medium is provided which can offer a high display contrast and is less likely to cause a lowering of contrast or disappearance of display even in low temperature and high temperature regions. A smectic liquid crystal composition, for use in the recording display medium, and use of the recording display medium are also provided. The liquid crystal composition comprises: at least one member selected from the group constituting of compounds represented by the following general formula (I): ##STR1## wherein R.sup.1 represents an alkyl or alkoxy group having 8 to 18 carbon atoms; and at least one member selected from the group consisting of compounds represented by the following general formulae (II) to (VII): ##STR2## wherein R.sup.2, R.sup.4, R.sup.5, and R.sup.6 represent an alkyl group having 2 to 18 carbon atoms, R.sup.3, R.sup.7, R.sup.8, R.sup.9, and R.sup.10 represent an alkyl or alkoxy group having 2 to 18 carbon atoms, and X represents a halogen atom or an alkyl or alkoxy group having 2 to 18 carbon atoms.

REFERENCES:
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patent: 5351143 (1994-09-01), Sato et al.
Patent Abstracts of Japan, vol. 95, No. 10 & JP-A-07 281162 (Japan Energy Corp.), Oct. 27, 1995.
Patent Abstracts of Japan, vol. 95, No. 010 & JP-A-07 261163 (Dai Nippon Printing Co., Ltd.), Oct. 13, 1995.
Patent Abstracts of Japan, vol. 95, No. 10 & JP-A-07 286179 (Japan Energy Corp.), Oct. 31, 1995.

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