Light control sheet, light control device, photosensitive composition, and method for producing light control sheet
AssigneeToppan Inc.
InventorTaisuke Enya
Life of this patent
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Abstract
A light control layer contains a liquid crystal composition and a resin composition. The liquid crystal composition is composed of a liquid crystal compound having a nematic-isotropic phase transition temperature of 110° C. or greater and 140° C. or less, the resin composition contains an acrylic polymer, a bridging group of the acrylic polymer is a saturated alkyl group having 1 or more and 12 or fewer carbon atoms, and the resin composition contains, in the acrylic polymer, a moiety in which the saturated alkyl group is a linear alkyl group, whereby a light control device operates normally over a wider temperature range.
Claims20
A liquid crystal-dispersed light control sheet, comprising:
- a light control layer;
- a pair of transparent electrode layers sandwiching the light control layer;
- and
- a pair of transparent support layers sandwiching the pair of transparent electrode layers,
- wherein the light control layer includes a resin composition partitioning a plurality of voids, and a liquid crystal composition filling the voids, the liquid crystal composition includes a liquid crystal compound having a nematic-isotropic phase transition temperature in a range of 110° C. to 140° C., and the resin composition includes an acrylic polymer comprising a repeating structure of
- where R1 is a linear alkyl group having 1 to 12 carbon atoms, and n is an integer of 2 or more.
Dependencies are inferred from the claim text.