公开(公告)号：US11966122B2

公开(公告)日：2024-04-23

申请号：US18077491

申请日：2022-12-08

Applicant: TOPPAN Inc.

Inventor： Gen Nakamura ,  Toshiji Yasuhara ,  Taisuke Enya ,  Yuka Kurokawa ,  Yusuke Takahashi

IPC: G02F1/1337 ,  G02F1/00 ,  G02F1/13

CPC classification number: G02F1/133773 ,  G02F1/0045 ,  G02F1/1316

Abstract: A light control sheet including a first transparent electrode layer, a second transparent electrode layer, a light control layer including a resin layer which is formed between the first and second transparent electrode layers and includes a liquid crystal composition in holes formed in the resin layer, the liquid crystal composition including liquid crystal molecules, and a first alignment layer formed between the first transparent electrode layer and the light control layer such that a haze of the light control layer is increased upon application of a voltage to the first transparent electrode layer. The light control layer includes a first high-density portion and a low-density portion, and the first high-density portion is in contact with the first alignment layer and includes the liquid crystal composition at a density higher than a density of the liquid crystal composition in the low-density portion per unit thickness of the light control layer.

公开(公告)号：US11886086B2

公开(公告)日：2024-01-30

申请号：US18308084

申请日：2023-04-27

Applicant: TOPPAN Inc.

Inventor： Kaori Morinaga ,  Taisuke Enya ,  Yuji Yano ,  Masayuki Takahashi

IPC: G02F1/1334 ,  G02F1/137 ,  G02F1/1337 ,  G02F1/1343

CPC classification number: G02F1/137 ,  G02F1/1334 ,  G02F1/1337 ,  G02F1/13439 ,  G02F2203/48

Abstract: A light control sheet including 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. 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.