Liquid crystal composition

Details Liquid crystal composition Liquid crystal composition

1983-06-29

1986-05-13

Gron, Teddy S.

Compositions

Liquid crystal compositions

Containing pleochroic dye

350349, 534577, C09K 334, G02F 113

Patent

active

045885176

ABSTRACT:
The description is concerned with a liquid crystal composition of the guest-host type which contains a pleochroic dye dissolved therein. The dye molecule has an end group or end groups in the molecule represented by the general formula: ##STR1## where Ro designates a straight chain of alkyl group, in which methylene group not adjacent to the nitrogen atom may be substituted by oxygen atom or sulfer atom; R1 designates an alkyl group having a chain length different from that of the alkyl group of Ro or a group ##STR2## in R1 a methylene group not adjacent to the nitrogen atom may be substituted by oxygen atom or sulfur atom, and R2 designates hydrogen atom, alkyl group, alkoxy group, cycloalkyl group or dialkylamino group.

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