US 12,422,715 B2
Light control sheet, light control device, photosensitive composition, and method for producing light control sheet
Taisuke Enya, Taito-ku (JP)
Assigned to TOPPAN Inc., Taito-ku (JP)
Filed by TOPPAN Inc., Tokyo (JP)
Filed on Sep. 28, 2023, as Appl. No. 18/476,440.
Application 18/476,440 is a continuation of application No. PCT/JP2022/016755, filed on Mar. 31, 2022.
Claims priority of application No. 2021-060925 (JP), filed on Mar. 31, 2021.
Prior Publication US 2024/0027836 A1, Jan. 25, 2024
Int. Cl. G02F 1/1333 (2006.01); C09K 19/02 (2006.01); C09K 19/38 (2006.01); G02F 1/00 (2006.01); G02F 1/1337 (2006.01)
CPC G02F 1/133711 (2013.01) [C09K 19/02 (2013.01); C09K 19/3838 (2013.01); G02F 1/0063 (2013.01); C09K 2219/03 (2013.01)] 20 Claims
 
1. 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

OG Complex Work Unit Chemistry
where R1 is a linear alkyl group having 1 to 12 carbon atoms, and n is an integer of 2 or more.