公开(公告)号：US20220121047A1

公开(公告)日：2022-04-21

申请号：US17563154

申请日：2021-12-28

Applicant: TOPPAN Inc..

Inventor： Toshiji YASUHARA ,  Takehiro YAMADA

IPC: G02F1/1334 ,  G02F1/137 ,  G02F1/1343 ,  G02F1/133

Abstract: A light control sheet including a light control layer switchable between a transparent state and an opaque state, and transparent electrode layers sandwiching the light control layer. The light control layer includes a transparent polymer layer that has domains whose average size is 1.0 μm-1.55 μm, and the light control layer includes a liquid crystal composition at a concentration of 37%-55% such that the liquid crystal composition fills the domains.

公开(公告)号：US20240361646A1

公开(公告)日：2024-10-31

申请号：US18771028

申请日：2024-07-12

Applicant: TOPPAN Inc.

Inventor： Toshiji YASUHARA

IPC: G02F1/1343 ,  G02F1/1345

CPC classification number: G02F1/13439 ,  G02F1/13458

Abstract: A light control sheet includes transparent electrodes including a first and second transparent electrode layers, a light control layer, a transparent support layer, and a covering layer. The transparent support layer has a support surface supporting the first transparent electrode layer, the first transparent electrode layer includes a first electrode element and a second electrode element aligned along the support surface and electrically insulated from each other by a groove extending in a direction along the support surface of the transparent support layer and that the groove is penetrating through the transparent support layer and the first transparent electrode layer in a depth direction of the groove and has an opening on the protected surface of the transparent support layer, and the covering layer is formed such that the covering layer is covering the opening of the groove formed in the transparent support layer and the first transparent electrode layer.

公开(公告)号：US20230288760A1

公开(公告)日：2023-09-14

申请号：US18317300

申请日：2023-05-15

Applicant: TOPPAN Inc.

Inventor： Toshiji YASUHARA

IPC: G02F1/1343 ,  G02F1/1345

CPC classification number: G02F1/13439 ,  G02F1/13458

Abstract: A light control sheet includes transparent electrodes including a first and second transparent electrode layers, a light control layer, a transparent support layer, and a covering layer. The transparent support layer has a support surface supporting the first transparent electrode layer, the first transparent electrode layer includes a first electrode element and a second electrode element aligned along the support surface and electrically insulated from each other by a groove extending in a direction along the support surface of the transparent support layer and that the groove is penetrating through the transparent support layer and the first transparent electrode layer in a depth direction of the groove and has an opening on the protected surface of the transparent support layer, and the covering layer is formed such that the covering layer is covering the opening of the groove formed in the transparent support layer and the first transparent electrode layer.

公开(公告)号：US20220121054A1

公开(公告)日：2022-04-21

申请号：US17560521

申请日：2021-12-23

Applicant: TOPPAN Inc.

Inventor： Toshiji YASUHARA

IPC: G02F1/1339 ,  G02F1/1343

Abstract: A light control sheet including a first transparent electrode, a second transparent electrode, a liquid crystal layer formed between the first transparent electrode and the second transparent electrode, and spacers included in the liquid crystal layer. The spacers have an average size of 3 μm-50 μm, and the spacers have a size distribution that has a plurality of discrete peaks.