公开(公告)号：US20210055603A1

公开(公告)日：2021-02-25

申请号：US17092808

申请日：2020-11-09

Applicant: Japan Display Inc.

Inventor： Tae KUROKAWA ,  Kentaro OKUYAMA

IPC: G02F1/1335 ,  G02F1/1334 ,  G02F1/1333 ,  G02F1/1337 ,  G02F1/1343 ,  G02F1/1345 ,  G02F1/13357

Abstract: According to one embodiment, a display device includes a first substrate including a light-shielding layer and a conductive line having a first side surface and a second side surface on a side opposite to the first side surface, a second substrate opposed to the first substrate, a polymer dispersed liquid crystal layer held between the first substrate and the second substrate, and including a polymer and liquid crystal molecules, and a light-emitting element opposed to an end portion of at least one of the first substrate and the second substrate, wherein the first side surface is closer to the light-emitting element than the second side surface, and the light-shielding layer covers at least the first side surface of the conductive line.

公开(公告)号：US20250027631A1

公开(公告)日：2025-01-23

申请号：US18907964

申请日：2024-10-07

Applicant: Japan Display Inc.

Inventor： Tae KUROKAWA ,  Takeo KOITO ,  Kojiro IKEDA

IPC: F21V9/40 ,  G02F1/1343 ,  G02F1/1347

Abstract: An optical element includes a first liquid crystal cell and a second liquid crystal cell. The first liquid crystal cell and the second liquid crystal cell are stacked. Each of the first liquid crystal cell and the second liquid crystal cell includes a first substrate on which a first transparent electrode and a second transparent electrode are alternately and repeatedly arranged in a first direction, a second substrate on which a third transparent electrode and a fourth transparent electrode are alternately and repeatedly arranged in a second direction intersecting the first direction, and a liquid crystal layer between the first substrate and the second substrate. The second substrate of the first liquid crystal cell and the first substrate of the second liquid crystal cell are adjacent to each other.

公开(公告)号：US20240337883A1

公开(公告)日：2024-10-10

申请号：US18739440

申请日：2024-06-11

Applicant: Japan Display Inc.

Inventor： Tae KUROKAWA ,  Takeo KOITO ,  Kojiro IKEDA

IPC: G02F1/1343 ,  G02F1/1347

CPC classification number: G02F1/13439 ,  G02F1/1347

Abstract: An optical element includes at least two liquid crystal cells. The at least two liquid crystal cells include a first substrate on which a first transparent electrode and a second transparent electrode are alternately and repeatedly arranged in a first direction, a second substrate on which a third transparent electrode and a fourth transparent electrode are alternately and repeatedly arranged in a second direction intersecting the first direction, and a liquid crystal layer between the first substrate and the second substrate. The second transparent electrode comprises a first bent portion bent in the first direction. The fourth transparent electrode comprises a second bent portion bent in the second direction.

公开(公告)号：US20240184170A1

公开(公告)日：2024-06-06

申请号：US18443634

申请日：2024-02-16

Applicant: Japan Display Inc.

Inventor： Kojiro IKEDA ,  Takeo KOITO ,  Tae KUROKAWA

IPC: G02F1/1347 ,  G02F1/1337 ,  G02F1/1343

CPC classification number: G02F1/1347 ,  G02F1/133773 ,  G02F1/134309

Abstract: A liquid crystal light control device includes a plurality of liquid crystal cells arranged in a stack. Each of the plurality of liquid crystal cells includes a first substrate and a second substrate opposite the first substrate, a first electrode and a second electrode both of which have a strip pattern arranged on at least one of the first substrate and the second substrate, a first alignment film on the first substrate and a second alignment film on the second substrate, and a liquid crystal layer between the first substrate and the second substrate. The strip pattern is arranged alternately with the first electrode and the second electrode, an alignment direction of the first alignment film is aligned with a direction of extension of the strip pattern, and an alignment direction of the second alignment film is arranged intersecting the alignment direction of the first alignment film.

公开(公告)号：US20230375883A1

公开(公告)日：2023-11-23

申请号：US18231306

申请日：2023-08-08

Applicant: Japan Display Inc.

Inventor： Tae KUROKAWA ,  Takeo KOITO ,  Kojiro IKEDA

IPC: G02F1/1343 ,  G02F1/1347 ,  G02F1/1337

CPC classification number: G02F1/134309 ,  G02F1/1347 ,  G02F1/1337

Abstract: A liquid crystal light control device in an embodiment according to the present invention includes a first liquid crystal cell, a second liquid crystal cell overlapping the first liquid crystal cell, a third liquid crystal cell overlapping the second liquid crystal cell, and a fourth liquid crystal cell overlapping the third liquid crystal, each of the first liquid crystal cell, the second liquid crystal cell, the third liquid crystal cell, and the fourth liquid crystal cell includes a first substrate arranged with a first electrode having a strip pattern, a second substrate arranged with a second electrode having a strip pattern, and a liquid crystal layer between the first substrate and the second substrate. The first substrate and the second substrate are arranged with a longitudinal direction of the strip pattern of the first electrode and second electrode intersecting.

公开(公告)号：US20220373831A1

公开(公告)日：2022-11-24

申请号：US17881610

申请日：2022-08-05

Applicant: Japan Display Inc.

Inventor： Takeo KOITO ,  Tae KUROKAWA ,  Masashi MITSUI

IPC: G02F1/1347 ,  G02F1/1343 ,  G02F1/1335 ,  G02F1/137

Abstract: According to one embodiment, a light control device includes a first liquid crystal cell, a second liquid crystal cell, and a polarization conversion element disposed between the first liquid crystal cell and the second liquid crystal cell. One substrate of each of the first liquid crystal cell and the second liquid crystal cell includes an insulating substrate, and first to fourth electrodes arranged on the insulating substrate and formed in a strip shape. The electric potential difference between the first electrode and the second electrode, the electric potential difference between the second electrode and the third electrode, and the electric potential difference between the third electrode and the fourth electrode are different from each other.

公开(公告)号：US20220357614A1

公开(公告)日：2022-11-10

申请号：US17870852

申请日：2022-07-22

Applicant: Japan Display Inc.

Inventor： Takeo KOITO ,  Tae KUROKAWA ,  Masashi MITSUI

IPC: G02F1/1333 ,  G02F1/1343 ,  G02F1/1347 ,  G02F1/1337 ,  G02F1/1335

Abstract: According to one embodiment, a light control device includes a first liquid crystal cell, a second liquid crystal cell and a polarized light conversion element disposed between the first liquid crystal cell and the second liquid crystal cell. One substrate of an pair of substrates of each of the first liquid crystal cell and the second liquid crystal cell includes an insulating substrate, a plurality of first electrodes arranged along one direction on the insulating substrate and formed in a strip shape, a first inorganic insulating film covering the first electrodes and a plurality of second electrodes intersecting the first electrodes on the first inorganic insulating film and formed in a strip shape.

公开(公告)号：US20220317499A1

公开(公告)日：2022-10-06

申请号：US17706870

申请日：2022-03-29

Applicant: Japan Display Inc.

Inventor： Takeo KOITO ,  Kojiro IKEDA ,  Tae KUROKAWA

IPC: G02F1/1339 ,  G02F1/1343

Abstract: According to an aspect, an optical element includes: a first substrate including a first electrode; a second substrate stacked on the first substrate and including a second electrode; a liquid crystal layer provided between the first substrate and the second substrate; a sealing member extending along an outer periphery of the liquid crystal layer; a first spacer provided on an inner side of the sealing member; and a conductive column provided on an outer side of the sealing member and electrically connecting the first electrode and the second electrode. The conductive column and the first spacer include the same material.

公开(公告)号：US20220235918A1

公开(公告)日：2022-07-28

申请号：US17659394

申请日：2022-04-15

Applicant: Japan Display Inc.

Inventor： Takeo KOITO ,  Masashi MITSUI ,  Tae KUROKAWA

IPC: F21V14/00 ,  G02F1/29

Abstract: According to one embodiment, a light control device includes a first substrate including a plurality of first control electrodes disposed in an effective area, and a plurality of feed lines disposed in a peripheral area, a second substrate, and a first liquid crystal layer. The first control electrodes are transparent electrodes. Each of the first control electrodes includes, in the effective area, first segments crossing a first direction at a first angle, second segments crossing the first direction at a second angle, and third segments crossing the first direction at a third angle. The first control electrode is electrically connected to the feed line. The first to third angles are different from each other.

公开(公告)号：US20180330681A1

公开(公告)日：2018-11-15

申请号：US15966251

申请日：2018-04-30

Applicant: Japan Display Inc.

Inventor： Tae KUROKAWA

IPC: G09G3/36 ,  G02F1/1339 ,  G02F1/133 ,  G02F1/1368 ,  F21V8/00

CPC classification number: G09G3/3607 ,  G02B6/0068 ,  G02B6/0076 ,  G02F1/13318 ,  G02F1/1339 ,  G02F1/1368 ,  G02F2201/58 ,  G02F2203/01 ,  G02F2203/34 ,  G09G2320/0271 ,  G09G2320/064 ,  G09G2320/0666 ,  G09G2360/144

Abstract: According to an aspect, a display device includes: a first translucent substrate; a second translucent substrate facing the first translucent substrate; a liquid crystal layer including polymer dispersed liquid crystal sealed between the first and second translucent substrates; at least one light emitter facing at least one of side surfaces of the first and the second translucent substrates; and a display controller. The display controller includes: an external light analyzer setting, in accordance with a received signal of external light information, a second color gamut different from a first color gamut displayable when the external light is not present; and a signal adjuster converting in color a first pixel input signal into a second pixel input signal that reduces a color shift of a second reproduced color in the second color gamut from a first reproduced color in the first color gamut in accordance with the first pixel input signal.