公开(公告)号：US20240345441A1

公开(公告)日：2024-10-17

申请号：US18751805

申请日：2024-06-24

Applicant: Japan Display Inc.

Inventor： Kojiro IKEDA ,  Takeo KOITO

IPC: G02F1/1343 ,  G02F1/1347

CPC classification number: G02F1/134309 ,  G02F1/1347

Abstract: An optical element includes first to fourth liquid crystal cells. Each of the first to fourth liquid crystal cells includes a first substrate on which a first pair of comb-shaped transparent electrodes are arranged and a second substrate on which a second pair of comb-shaped transparent electrodes are arranged. An extending direction of the first pair of comb-shaped transparent electrodes is orthogonal to an extending direction of the second pair of comb-shaped transparent electrodes. Between two different liquid crystal cells of the first to fourth liquid crystal cells, one of the first pair of comb-shaped transparent electrodes of one liquid crystal cell and one of the second pair of comb-shaped transparent electrodes of the other liquid crystal cell are electrically connected to each other.

公开(公告)号：US20240344685A1

公开(公告)日：2024-10-17

申请号：US18753362

申请日：2024-06-25

Applicant: Japan Display Inc.

Inventor： Kojiro IKEDA ,  Takeo KOITO

IPC: F21V14/00 ,  G02F1/1337 ,  G02F1/1343 ,  G02F1/1347

CPC classification number: F21V14/003 ,  G02F1/1337 ,  G02F1/134309 ,  G02F1/1347

Abstract: Disclosed is a lighting device including a light source, a first liquid crystal panel over the light source, and a second liquid crystal panel over the first liquid crystal panel. Each of the first liquid crystal panel and the second liquid crystal panel includes: a substrate; a plurality of lower electrodes arranged over the substrate in a stripe shape; a first orientation film over the plurality of lower electrodes; a liquid crystal layer over the first orientation film; a second orientation film arranged over the liquid crystal layer and having an orientation direction orthogonal to that of the first orientation film; a plurality of upper electrodes arranged over the second orientation film, orthogonal to the plurality of lower electrodes, and arranged in a stripe shape; and a counter substrate over the plurality of upper electrodes.

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：US20230185137A1

公开(公告)日：2023-06-15

申请号：US18106693

申请日：2023-02-07

Applicant: Japan Display Inc.

Inventor： Tenfu NAKAMURA ,  Kojiro IKEDA ,  Kentaro OKUYAMA

IPC: G02F1/1343 ,  G02F1/1339 ,  G02F1/1334

CPC classification number: G02F1/134309 ,  G02F1/13396 ,  G02F1/1334

Abstract: According to one embodiment, a display device includes a first substrate including a pixel electrode, a second substrate including a common electrode, a liquid crystal layer located between the first substrate and the second substrate and containing polymer and liquid crystal molecules, and a light emitting element opposed to an end surface of the second substrate, the common electrode being separated from the pixel electrode by a first distance, at a first position, the common electrode being separated from the pixel electrode by a second distance, at a second position more separated from the light emitting element than the first position, the second distance being smaller than the first distance.

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：US20220128869A1

公开(公告)日：2022-04-28

申请号：US17451507

申请日：2021-10-20

Applicant: Japan Display Inc.

Inventor： Shinichiro TANAKA ,  Takeo KOITO ,  Kojiro IKEDA ,  Koichi NAGAO

IPC: G02F1/1343 ,  G02F1/1347

Abstract: According to one embodiment, a liquid crystal device includes a first liquid crystal cell and a second liquid crystal cell bonded to the first liquid crystal cell. The first liquid crystal cell and the second liquid crystal cell each include a first substrate including first electrodes formed in a strip shape, a second substrate including second electrodes formed in a strip shape, and a liquid crystal layer held between the first substrate and the second substrate. An angle of intersection of the first electrodes and the second electrodes is less than 90° in each of the first liquid crystal cell and the second liquid crystal cell.

公开(公告)号：US20210311364A1

公开(公告)日：2021-10-07

申请号：US17219106

申请日：2021-03-31

Applicant: Japan Display Inc.

Inventor： Kojiro IKEDA ,  Tenfu NAKAMURA ,  Kentaro OKUYAMA

IPC: G02F1/1337

Abstract: According to one embodiment, a display device includes a first transparent substrate, a second transparent substrate having a first side surface and a second side surface, and a liquid crystal layer including a stripe-shaped polymer and liquid crystal molecules. The liquid crystal layer has a first region and a second region. When no voltage is applied to the liquid crystal layer, a first intersection angle of a first director of a first liquid crystal molecule and a first extension axis of the polymer included in the first region is different from a second intersection angle of a second director of a second liquid crystal molecule and a second extension axis of the polymer included in the second region.

公开(公告)号：US20180315385A1

公开(公告)日：2018-11-01

申请号：US15962612

申请日：2018-04-25

Applicant: Japan Display Inc.

Inventor： Kojiro IKEDA ,  Masaaki KABE ,  Chikyu NAKAOKA

IPC: G09G3/36 ,  G02F1/133 ,  G02F1/1335

CPC classification number: G09G3/3607 ,  G02F1/13306 ,  G02F1/133514 ,  G02F2201/52 ,  G02F2203/30 ,  G09G3/3611 ,  G09G3/364

Abstract: According to an aspect, a display device includes a plurality of pixels. Each pixel includes two sub-pixels adjacent to each other in a first direction. Each sub-pixel has one of three colors allocated thereto. Two colors of the two sub-pixels included in the pixel are different. The two colors of the two sub-pixels and a positional relation between the two sub-pixels are the same in each of the pixels arrayed in a second direction. One color not allocated to the two sub-pixels included in a first pixel out of the three colors is allocated to at least one of the sub-pixels included in second pixels adjacent to the first pixel in the first direction. The sub-pixels having the same color allocated thereto are arranged along the first direction with one sub-pixel interposed therebetween, the one sub-pixel having another color allocated thereto.