Liquid crystal mixture
AssigneeAlps Electric Co., Ltd.
InventorsYuzo Hayashi, Fumiaki Yamanashi, Yoshiyuki Fujiwara
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Abstract
In a liquid crystal mixture comprising a nematic liquid crystal having negative dielectric anisotropy, an optically active substance such as cholesteric or chiral nematic liquid crystal, a dichroic dye and an ionic substance, the present invention is characterized by use of 3,5-dinitrobenzoic acid having the following structural formula as the ionic substance: ##STR1##
Claims2
A liquid crystal mixture consisting essentially of a nematic liquid crystal having negative dielectric anisotropy, an optically active substance which is a cholesteric or chiralnematic liquid crystal, a dichroic dye and an ionic substance 3,5-dinitrobenzoic acid.
Dependencies are inferred from the claim text.