公开(公告)号：US12282217B2

公开(公告)日：2025-04-22

申请号：US18116936

申请日：2023-03-03

Applicant: Japan Display Inc.

Inventor： Hiroki Sugiyama ,  Kentaro Okuyama ,  Yoshihide Ohue ,  Yuuji Oomori

IPC: G02F1/1333 ,  G02F1/1334 ,  G02F1/1337 ,  G02F1/1339 ,  G02F1/1343 ,  G02F1/1362

Abstract: A display device includes: an array substrate; a counter substrate; a liquid crystal layer between the array substrate and the counter substrate; and a light source. The array substrate includes: signal lines; scanning lines; a grid-shaped organic insulating layer that extends along the scanning lines and the signal lines and overlies the scanning lines and the signal lines; pixel electrodes provided in regions surrounded by the scanning lines and the signal lines; and a first orientation film that covers the pixel electrodes. A portion of each pixel electrodes overlaps a slant surface of the organic insulating layer. The counter substrate includes: a common electrode overlapping the respective pixel electrodes; a protective film that has an insulating capability and a light transmitting capability and covers a side of the common electrode facing the array substrate at least in the display region; and a second orientation film that covers the protective film.

公开(公告)号：US12248213B2

公开(公告)日：2025-03-11

申请号：US18605830

申请日：2024-03-15

Applicant: Japan Display Inc.

Inventor： Kentaro Okuyama

IPC: G02F1/1333 ,  G02F1/1334 ,  G02F1/1343 ,  G02F1/1345

Abstract: A display device comprises a display panel including a liquid crystal layer between a pair of substrates and a heater including a plurality of electrodes arranged at a distance from each other and disposed adjacent to the display panel. The plurality of electrodes includes a first electrode heated at a first temperature and a second electrode heated at a second temperature lower than the first temperature. Each of the plurality of electrodes may be a transparent electrode on a transparent substrate.

公开(公告)号：US12111543B2

公开(公告)日：2024-10-08

申请号：US18366099

申请日：2023-08-07

Applicant: Japan Display Inc.

Inventor： Koichi Igeta ,  Tenfu Nakamura ,  Kentaro Okuyama

IPC: G02F1/1339 ,  G02F1/1333 ,  G02F1/1334 ,  G02F1/1362

CPC classification number: G02F1/1339 ,  G02F1/133305 ,  G02F1/1334 ,  G02F1/136286

Abstract: According to one embodiment, a display device includes a first substrate, a second substrate opposed to the first substrate, a sealing member bonding the first substrate with the second substrate, and a liquid crystal layer between the first substrate and the second substrate. From an aspect, the sealing member includes a first sealing member surrounding a display area including a plurality of pixels, and a second sealing member formed of a same material as the first sealing member and arranged in the display area.

公开(公告)号：US11934074B2

公开(公告)日：2024-03-19

申请号：US18331420

申请日：2023-06-08

Applicant: Japan Display Inc.

Inventor： Kojiro Ikeda ,  Kentaro Okuyama ,  Tenfu Nakamura

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

CPC classification number: G02F1/136286 ,  G02F1/133365 ,  G02F1/136213 ,  G09G3/3677 ,  G02F1/136295

Abstract: 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 includes a stripe-shaped polymer extending in a first direction and a liquid crystal molecule. The liquid crystal layer includes 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：US11906863B2

公开(公告)日：2024-02-20

申请号：US17973724

申请日：2022-10-26

Applicant: Japan Display Inc.

Inventor： Kojiro Ikeda ,  Kentaro Okuyama ,  Tenfu Nakamura

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

CPC classification number: G02F1/136286 ,  G02F1/133365 ,  G02F1/136213 ,  G09G3/3677 ,  G02F1/136295

Abstract: 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 includes a stripe-shaped polymer extending in a first direction and a liquid crystal molecule. The liquid crystal layer includes 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：US11867995B2

公开(公告)日：2024-01-09

申请号：US18083795

申请日：2022-12-19

Applicant: Japan Display Inc.

Inventor： Kentaro Okuyama ,  Akira Sakaigawa

IPC: G02F1/1334 ,  G02F1/13357 ,  G02F1/1335 ,  G02F1/13363

CPC classification number: G02F1/1334 ,  G02F1/133615 ,  G02F1/133622 ,  G02F1/133638

Abstract: A display device is provided and includes display panel including first substrate, lower electrode on first substrate, lower alignment layer with first alignment direction on lower electrode, second substrate, upper electrode on second substrate, upper alignment layer with first alignment direction on upper electrode, and liquid crystalline polymers with striped structure and liquid crystal molecules which are aligned in first alignment direction, and which are disposed between first and second substrates; light source unit disposed at side of display panel and configured to emit incident light which is not polarized; and light guided structure disposed between side of display panel and light source unit, wherein light source unit is disposed in parallel to first alignment direction and light which is emitted from display panel is polarized in first alignment direction.

公开(公告)号：US11846854B2

公开(公告)日：2023-12-19

申请号：US17402792

申请日：2021-08-16

Applicant: Japan Display Inc.

Inventor： Kentaro Okuyama ,  Yoshihide Ohue ,  Hiroki Sugiyama ,  Tomoyuki Tada

IPC: G02F1/1362 ,  G02F1/1334 ,  G02F1/1368

CPC classification number: G02F1/136209 ,  G02F1/1334 ,  G02F1/1368 ,  G02F1/136227 ,  G02F1/136268

Abstract: According to one embodiment, a display device including a first substrate including a first pixel and a second pixel, a second substrate, a liquid crystal layer containing polymer and liquid crystal molecules, and a light emitting element, wherein the second pixel is located between the light emitting element and the first pixel, the first substrate includes a switching element including a semiconductor layer arranged in the first pixel, a pixel electrode, and a first light shielding portion arranged in the second pixel and being adjacent to the semiconductor layer, the first light shielding portion is located between the semiconductor layer and the light emitting element in planar view and located on a side closer to the first pixel than a center of the second pixel.

公开(公告)号：US11789303B2

公开(公告)日：2023-10-17

申请号：US17747025

申请日：2022-05-18

Applicant: Japan Display Inc.

Inventor： Koji Kitamura ,  Yoshihide Ohue ,  Kentaro Okuyama ,  Hiroya Morimoto ,  Masato Kesho

IPC: G02F1/1333 ,  G02F1/1362 ,  G02F1/1339 ,  G02F1/1335 ,  G02F1/1345 ,  G02F1/133

CPC classification number: G02F1/133388 ,  G02F1/1345 ,  G02F1/13394 ,  G02F1/13396 ,  G02F1/133345 ,  G02F1/133512 ,  G02F1/136286 ,  G02F1/13306 ,  G02F2203/01

Abstract: A display device includes a display region, a peripheral region around the display region, a sealing portion provided in the peripheral region to seal a liquid crystal layer, and a liquid crystal supply portion provided at a part of the sealing portion and interconnecting an outside of the sealing portion and the display region. The peripheral region includes a first peripheral region which is provided between the display region and the sealing portion and from which an insulating film is removed and a second peripheral region which is provided between the display region and the sealing portion and in which the insulating film covering a circuit is formed. A light blocking film arranged so as to straddle the first and second peripheral regions and extending linearly in an extending direction of a boundary between the first and second peripheral regions is formed on a substrate.

公开(公告)号：US11614652B2

公开(公告)日：2023-03-28

申请号：US17505272

申请日：2021-10-19

Applicant: JAPAN DISPLAY INC.

Inventor： Tenfu Nakamura ,  Kojiro Ikeda ,  Kentaro Okuyama

IPC: G02F1/1334 ,  G02F1/1343 ,  G02F1/13357

Abstract: According to one embodiment, a display device comprises substrates, a liquid crystal layer containing stringy polymers, a display area with first and second pixels and a light source. In a spatial frequency spectrum obtained by performing FT on a pattern of the polymers which overlap the pixels with respect to first and second frequency components, when an outline in a plane defined by the components in an area having a value of 75% or more of the maximum value is defined as an evaluation circle, and a value obtained by dividing a length of a major axis of the circle by that of a minor axis is defined as an evaluation value, the evaluation value of the first pixel is greater than that of the second pixel.

公开(公告)号：US11592716B2

公开(公告)日：2023-02-28

申请号：US17565573

申请日：2021-12-30

Applicant: Japan Display Inc.

Inventor： Kentaro Okuyama ,  Yudai Numata

IPC: G02F1/1362 ,  G02F1/1334 ,  G02F1/1335

Abstract: According to one embodiment, a display device includes a first substrate, a second substrate and a liquid crystal layer. The first substrate includes a first insulating substrate, a scanning line, a signal line, a switching, and a pixel electrode. The liquid crystal layer includes a polymer in a shape of a streak and a liquid crystal molecule. The scanning line includes a conductive layer located between the first insulating substrate and the liquid crystal layer, and a first reflective layer located between the first insulating substrate and the conductive layer and having a reflectance higher than a reflectance of the conductive layer.