公开(公告)号：US12169336B2

公开(公告)日：2024-12-17

申请号：US18132016

申请日：2023-04-07

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：US12140837B2

公开(公告)日：2024-11-12

申请号：US18369005

申请日：2023-09-15

Applicant: Japan Display Inc.

Inventor： Kojiro Ikeda ,  Takeo Koito ,  Tae Kurokawa

IPC: G02F1/1337 ,  G02F1/1343

Abstract: A liquid crystal light control device 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 cell. Each of the first, second, third, and the fourth liquid crystal cells includes, a first substrate including a first alignment film, a second substrate including an electrode having a strip pattern and a second alignment film, and a liquid crystal layer between the first substrate and the second substrate. An alignment direction of the first alignment film and an alignment direction of the second alignment film are aligned to intersect each other. A longitudinal direction of the strip pattern of the electrode having the strip pattern is arranged to intersect an alignment direction of the second alignment film.

公开(公告)号：US11934072B2

公开(公告)日：2024-03-19

申请号：US18367123

申请日：2023-09-12

Applicant: JAPAN DISPLAY INC.

Inventor： Kojiro Ikeda ,  Takeo Koito ,  Koichi Nagao ,  Shinichiro Tanaka

IPC: G02F1/1343 ,  G02F1/1337

CPC classification number: G02F1/134381 ,  G02F1/133757 ,  G02F1/133788 ,  G02F1/134309

Abstract: According to one embodiment, a liquid crystal device includes a first liquid crystal cell and a second liquid crystal cell. The first liquid crystal cell and the second liquid crystal cell each include a first strip electrode, a second strip electrode, a third strip electrode and a fourth strip electrode. The extension direction of the first strip electrode and the second strip electrode in the first liquid crystal cell is different from the extension direction of the first strip electrode and the second strip electrode in the second liquid crystal cell. The extension direction of the first strip electrode and the second strip electrode intersects with the extension direction of the third strip electrode and the fourth strip electrode at an angle other than 90°.

公开(公告)号：US11657775B2

公开(公告)日：2023-05-23

申请号：US17191332

申请日：2021-03-03

Applicant: Japan Display Inc.

Inventor： Kojiro Ikeda ,  Kentaro Okuyama ,  Masaaki Kabe

IPC: G09G3/20 ,  G09G3/36 ,  G02F1/1334

CPC classification number: G09G3/3607 ,  G02F1/1334

Abstract: A display device includes a first light-transmitting substrate, a second light-transmitting substrate opposed to the first light-transmitting substrate, a liquid crystal layer comprising polymer dispersed liquid crystals filled between the first light-transmitting substrate and the second light-transmitting substrate, at least one light emitter opposed to at least one of a side surface of the first light-transmitting substrate and a side surface of the second light-transmitting substrate, and a first electrode and a second electrode disposed so as to sandwich the liquid crystal layer.

公开(公告)号：US11586087B2

公开(公告)日：2023-02-21

申请号：US17403000

申请日：2021-08-16

Applicant: Japan Display Inc.

Inventor： Kojiro Ikeda ,  Kentaro Okuyama ,  Tenfu Nakamura

IPC: G02F1/1362 ,  G02F1/1333 ,  G09G3/36

Abstract: According to one embodiment, a display device includes a liquid crystal layer between a first substrate and a second substrate. The first substrate includes a wiring line and a pixel electrode. The liquid crystal layer contains a stripe-shaped polymer extending in a first direction and a liquid crystal molecule. The liquid crystal layer contains a first polymer in an area overlapping the wiring line and a second polymer in an area overlapping the pixel electrode. The first polymer includes a first portion extending in a direction different from the first direction. The second polymer includes a second portion extending in a direction different from the first direction. A density of the first portion is higher than a density of the second portion.

公开(公告)号：US11586078B2

公开(公告)日：2023-02-21

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：US11543720B2

公开(公告)日：2023-01-03

申请号：US17403000

申请日：2021-08-16

Applicant: Japan Display Inc.

Inventor： Kojiro Ikeda ,  Kentaro Okuyama ,  Tenfu Nakamura

IPC: G02F1/1362 ,  G02F1/1333 ,  G09G3/36

Abstract: According to one embodiment, a display device includes a liquid crystal layer between a first substrate and a second substrate. The first substrate includes a wiring line and a pixel electrode. The liquid crystal layer contains a stripe-shaped polymer extending in a first direction and a liquid crystal molecule. The liquid crystal layer contains a first polymer in an area overlapping the wiring line and a second polymer in an area overlapping the pixel electrode. The first polymer includes a first portion extending in a direction different from the first direction. The second polymer includes a second portion extending in a direction different from the first direction. A density of the first portion is higher than a density of the second portion.

公开(公告)号：US10802354B2

公开(公告)日：2020-10-13

申请号：US16268204

申请日：2019-02-05

Applicant: Japan Display Inc.

Inventor： Tae Kurokawa ,  Akira Sakaigawa ,  Masaaki Kabe ,  Kojiro Ikeda ,  Amane Higashi

IPC: G02F1/1343 ,  G02F1/13357

Abstract: According to one embodiment, a display device includes a display panel, a light source, a light guide and a prism sheet. The display panel includes a display area in which unit pixels each containing first sub-pixels and second sub-pixels are arranged along a first direction and a second direction. In the display area, the first sub-pixels have a width different from that of the second sub-pixel in at least one of the first direction and the second direction, or each unit pixel contains different numbers of first sub-pixels and second sub-pixels. The prism sheet is interposed between the light guide and the display panel and includes prisms extending along a third direction inclined with respect to the second direction by an acute angle of inclination.

公开(公告)号：US10565944B2

公开(公告)日：2020-02-18

申请号：US15962612

申请日：2018-04-25

Applicant: Japan Display Inc.

Inventor： Kojiro Ikeda ,  Masaaki Kabe ,  Chikyu Nakaoka

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

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.

公开(公告)号：US10147767B2

公开(公告)日：2018-12-04

申请号：US15626563

申请日：2017-06-19

Applicant: Japan Display Inc.

Inventor： Masaaki Kabe ,  Hidemasa Yamaguchi ,  Kojiro Ikeda ,  Akira Sakaigawa

IPC: H01L27/32 ,  G09G3/32 ,  G09G3/20

Abstract: A display device includes a display unit in which pixels are arranged in a matrix. The pixels each include a first sub-pixel having the largest area among sub-pixels, a second sub-pixel adjacent to the first sub-pixel and having an area smaller than that of the first sub-pixel, and a third sub-pixel adjacent to the first and second sub-pixels, having an area smaller than that of the first sub-pixel, and arranged in the same column as that of second sub-pixels. First, second, and third pixels are aligned in at least one of a column direction or a row direction and each include the first, second, and third sub-pixels that can display different one of first, second, and third colors. Areas of the first, second, and third colors displayable by the first, second, and third pixels in total are equal to one another.