US 11,886,086 B2
Light control sheet
Kaori Morinaga, Taito-ku (JP); Taisuke Enya, Taito-ku (JP); Yuji Yano, Taito-ku (JP); and Masayuki Takahashi, Taito-ku (JP)
Assigned to TOPPAN Inc., Taito-ku (JP)
Filed by TOPPAN Inc., Taito-ku (JP)
Filed on Apr. 27, 2023, as Appl. No. 18/308,084.
Application 18/308,084 is a continuation of application No. PCT/JP2021/039979, filed on Oct. 29, 2021.
Claims priority of application No. 2020-182450 (JP), filed on Oct. 30, 2020.
Prior Publication US 2023/0266629 A1, Aug. 24, 2023
Int. Cl. G02F 1/1334 (2006.01); G02F 1/137 (2006.01); G02F 1/1337 (2006.01); G02F 1/1343 (2006.01)
CPC G02F 1/137 (2013.01) [G02F 1/1334 (2013.01); G02F 1/1337 (2013.01); G02F 1/13439 (2013.01); G02F 2203/48 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A light control sheet, comprising:
a first transparent electrode layer;
a second transparent electrode layer;
a light control layer including a resin layer formed between the first transparent electrode layer and the second transparent electrode layer, the resin layer including voids dispersed therein and filled with a liquid crystal composition including liquid crystal molecules; and
a first orientation layer formed between the first transparent electrode layer and the light control layer such that a haze of the light control layer is increased by applying a voltage to the first transparent electrode layer,
wherein the light control layer has a first surface in contact with the first orientation layer, and
an area ratio of the voids at the first surface is 49% or more where the area ratio is a percentage of a total area of all the voids to an area of the first surface.