Pleochroic dyes and electro-optical displays therewith

Details Pleochroic dyes and electro-optical displays therewith Pleochroic dyes and electro-optical displays therewith

1979-08-28

1987-10-27

Gron, Teddy S.

Compositions

Radioactive compositions

Nuclear reactor fuel

2522991, 350346, C09K 1900, G02F 113

Patent

active

047025611

ABSTRACT:
N-substituted anthraquinones in which the substituent group is at least partially cyclic, either cyclohexyl or aromatic, and including anils of 1,4- and 1,8-diaminoanthraquinone with p-alkyl- and p-alkoxybenzaldehyde, are pleochroic and form guest-host combinations with dielectrically positive anisotropic nematic liquid crystals. These combinations are of value in electro-optical display devices.

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