公开(公告)号：US12072582B2

公开(公告)日：2024-08-27

申请号：US18490107

申请日：2023-10-19

Applicant: TOPPAN Inc.

Inventor： Yusuke Takahashi ,  Yuji Kataoka

IPC: G02F1/1337

CPC classification number: G02F1/133788 ,  G02F1/133784

Abstract: A transparent substrate for a liquid crystal device includes an alignment layer that regulates an alignment direction of liquid crystal molecules contained in a liquid crystal layer of the liquid crystal device, and a base layer on which the alignment layer is formed. The transparent substrate includes a first surface and a second surface opposite the first surface. The first surface is a surface of the alignment layer, and the second surface is a surface of the base layer. The coefficient of static friction between the first surface and the second surface is less than or equal to 1.3. The transparent substrate has a hardness of F or higher in a pencil harness test on the first surface or on a surface of the base layer opposite the second surface.

公开(公告)号：US12174492B2

公开(公告)日：2024-12-24

申请号：US18487433

申请日：2023-10-16

Applicant: TOPPAN Inc.

Inventor： Yusuke Takahashi ,  Daisuke Yamashita

IPC: G02F1/1337

Abstract: A transparent substrate for a liquid crystal device includes an alignment layer that regulates an alignment direction of liquid crystal molecules contained in a light control layer included in a light control sheet, which is the liquid crystal device, and a base layer on which the alignment layer is formed. The substrate includes a first surface and a second surface opposite to the first surface. The first surface is part of the alignment layer. The second surface is part of the base layer. A surface, which contacts the alignment layer, of the base layer has surface roughness Ra1 of 20 nm or less in a pencil hardness test. A sum Ra1+Ra2 of the surface roughness Ra1 and surface roughness Ra2 of the second surface is 5 nm or more.

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.