Ferroelectric liquid crystal mixture

Details Ferroelectric liquid crystal mixture Ferroelectric liquid crystal mixture

1997-03-24

1998-07-14

Kelly, C. H.

Compositions

Liquid crystal compositions

Containing nonsteryl liquid crystalline compound of...

25229962, C09K 1934, C09K 1932

Patent

active

057799350

ABSTRACT:
A ferroelectric liquid crystal mixture which does not lower the conventional transition temperature to the ferroelectric phase (60.degree. C. or above), which maintains the Sa phase within a suitable temperature range, and which is useful for reducing the cone angle is disclosed. The ferroelectric liquid crystal mixture contains at least one of the compounds represented by the following general formulae 1 to 3, and exhibits a Sa/Sc phase transition temperature of 60.degree. C. or more and a cone angle of 47 degree or less atsome temperature between 15.degree. C. and 35.degree. C.: ##STR1##

REFERENCES:
patent: 5658492 (1997-08-01), Murashiro et al.

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