Dichroic liquid crystal compositions

Details Dichroic liquid crystal compositions Dichroic liquid crystal compositions

1977-09-21

1978-12-05

Padgett, Benjamin R.

Compositions

Liquid crystal compositions

252408, 260205, 260566R, 260566F, 350349, 350350, C09K 334, G02F 113

Patent

active

041284968

ABSTRACT:
Dichroic liquid crystal compositions, for use in liquid crystal displays, have a host liquid crystal material in which is dissolved one of a plurality of guest dichroic dyes, each having at least one Schiff-base ##STR1## bonding group. The dichroic liquid crystal compositions have a high order parameter, for providing contrast ratios on the order of 10:1 and imparting a yellow color to the display.

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