Liquid crystal composition and display device

Details Liquid crystal composition and display device Liquid crystal composition and display device

2008-01-08

2008-01-08

Wu, Shean C (Department: 1756)

Stock material or miscellaneous articles

Liquid crystal optical display having layer of specified...

C428S001300, C252S299010, C252S299100, C252S299500

Reexamination Certificate

active

07316829

ABSTRACT:
A liquid crystal composition comprising a dichroic dye, a host liquid crystal and at least one kind of solid matter having an average particle diameter of 1 nm to 10 m, the dichroic dye having a substituent represented by the following formula (1):in-line-formulae description="In-line Formulae" end="lead"?-(Het)j-{(B1)p-(Q1)q-(B2)r}n—C1:  Formula (1)in-line-formulae description="In-line Formulae" end="tail"?wherein Het is an oxygen atom or a sulfur atom; B1and B2each independently represent an arylene group, a heteroarylene group, or a divalent cyclic aliphatic hydrocarbon group; Q1represents a divalent linking group; C1represents an alkyl group, a cycloalkyl group, an alkoxy group, an alkoxycarbonyl group, an acyl group, or an acyloxy group; j represents 0 or 1; p, q, and r represent an integer of 0 to 5, respectively; n represents an integer of 1 to 3; the sum of the groups represented by B1and B2is an integer of 3 to 10; when p, q and r are respectively 2 or greater, two or more of B1, Q1or B2may be the same or different; when n is 2 or greater, two or more of {(B1)p-(Q1)q-(B2)r} may be the same or different.

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