Liquid crystal mixtures having widened smectic temperature range

Details Liquid crystal mixtures having widened smectic temperature range Liquid crystal mixtures having widened smectic temperature range

1987-07-02

1989-08-15

Gron, Teddy S.

Compositions

Liquid crystal compositions

Containing nonsteryl liquid crystalline compound of...

25229901, 350350S, C09K 1912, C09K 1952, G02F 113

Patent

active

048572276

ABSTRACT:
Mixtures of liquid crystal compounds from among different classes of liquid crystal ester compounds are disclosed. The mixtures exhibit freezing points substantially lower than the freezing point of either ester compound alone, so as to provide a substantially improved (widened) smectic C mesomorphic temperature range and protection against freezing or crystallization of liquid crystal material over a range of temperatures at which an electrooptic display device would typically be operated.

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T. Kitamura, et al., "Study of New Liquid Crystal Materials (11): Synthesis and Mesomorphic Properties of Alkoxymethylene Substituted Phenyl Cyclohexanecarboxylates", Mol. Cryst. Liq. Cryst. 1984, vol. 112, pp. 319-324.
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