Dichroic coloring agents for liquid crystal displays

Details Dichroic coloring agents for liquid crystal displays Dichroic coloring agents for liquid crystal displays

C - Chemistry, Metallurgy

09

B

260/236.28

C09B 1/26 (2006.01) C09B 1/22 (2006.01) C09B 1/58 (2006.01) C09K 19/60 (2006.01)

Patent

CA 1290752

ABSTRACT Dichroic coloring agents which have a blue to blue-violet hue and have not been used to date for liquid crystal displays are disclosed. These coloring agents are represented by the following formula: Image wherein X is S or NH; R1 is a hydrogen atom, halogen atom, alkyl group or alkoxy group; and R2 is a hydrogen atom, alkyl group, aryl group or aralkyl group.

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