Light-modulating liquid-crystal element

Details Light-modulating liquid-crystal element Light-modulating liquid-crystal element

2011-04-12

2011-04-12

Wu, Shean C (Department: 1722)

Stock material or miscellaneous articles

Liquid crystal optical display having layer of specified...

C252S299630, C252S299650, C252S299660

Reexamination Certificate

active

07923078

ABSTRACT:
A light-modulating liquid-crystal element comprising two substrates which each have an electrode layer and at least one of which is transparent, and a light-modulating layer supported between these substrates, wherein the light-modulating layer comprises a nematic liquid-crystal material and a transparent solid substance, and the nematic liquid-crystal material comprises a compound represented by the following general formula (I), and/or a compound represented by the following general formula (II), and a compound represented by the general formula (III), the nematic liquid-crystal material being dispersed as independent microdroplets in the transparent solid substance, the microdroplets having an average particle diameter of 0.1 to 50 μm.(In the formulae, R1to R3each independently is an alkyl group having 1 to 10 carbon atoms or the like;A1and A2each independently is trans-1,4-cyclohexylene or 1,4-phenylene;X1and X2each independently is a cyano group, an alkyl group having 1 to 10 carbon atoms, or the like.)

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European Patent Office issued an European Search Report dated Feb. 12, 2010, Application No. 06 78 2489.

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