Liquid crystal coupled dichroic dyes

Details Liquid crystal coupled dichroic dyes Liquid crystal coupled dichroic dyes

1989-12-11

1995-02-14

Wu, Shean

Compositions

Liquid crystal compositions

Containing pleochroic dye

25229901, 359103, C09K 1900, C09K 1952, G02F 113

Patent

active

053892852

ABSTRACT:
Liquid crystal coupled dichroic dye compositions comprising a dichroic dye moiety coupled to one or two liquid crystal moieties by a flexible spacer group having at least four atoms linked in a linear fashion; guest-host compositions comprising such liquid crystal coupled dichroic dye compositions dissolved in liquid crystal hosts and devices comprising such guest-host compositions; and liquid crystal coupled aromatic amines useful for forming the liquid crystal coupled dichroic dyes, are disclosed.

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Matsumoto et al, "Effect of Hydrophobic Group on the Structure of Langmuir Blodgett Films of Amphiphilic Cyanine and Squarylium Dyes", Chemistry Letters, pp. 1085-1088 (Chemical Society of Japan 1988).
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