公开(公告)号：US12265308B2

公开(公告)日：2025-04-01

申请号：US18517743

申请日：2023-11-22

Applicant: Japan Display Inc.

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

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

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：US12025881B2

公开(公告)日：2024-07-02

申请号：US18224401

申请日：2023-07-20

Applicant: JAPAN DISPLAY INC.

Inventor： Tenfu Nakamura ,  Kentaro Okuyama ,  Kojiro Ikeda

IPC: G02F1/13357 ,  G02F1/1334 ,  G02F1/1335 ,  G02F1/1362 ,  H01L27/12

CPC classification number: G02F1/133615 ,  G02F1/1334 ,  G02F1/133616 ,  G02F1/136286 ,  H01L27/124

Abstract: According to one embodiment, a display device including a liquid crystal layer containing strip-like polymers and liquid crystal molecules, a third transparent substrate, and a transparent layer disposed on the third transparent substrate and having a refractive index lower than that of the third transparent substrate, wherein the transparent layer includes strip portions which include first and second end portions, and a middle portion, the first end portion has a first width greater than a width of the middle portion, the second end portion has a second width greater than the width of the middle portion, and first wiring lines overlap the strip portions, respectively and extend in a same direction.

公开(公告)号：US12013613B2

公开(公告)日：2024-06-18

申请号：US18351788

申请日：2023-07-13

Applicant: Japan Display Inc.

Inventor： Kojiro Ikeda ,  Tenfu Nakamura ,  Kentaro Okuyama ,  Zhengyi Gou ,  Hisanori Kawakami

IPC: G02F1/13357 ,  G02F1/1362 ,  G02F1/1368

CPC classification number: G02F1/133615 ,  G02F1/136286 ,  G02F1/1368

Abstract: According to one embodiment, a display device includes a first substrate, a second substrate, a liquid crystal layer, a first light guide element and a light-emitting element. The liquid crystal layer contains stringy polymers and liquid crystal molecules. The first light guide element includes a third transparent substrate including a side surface and a main surface, and a transparent layer disposed on the main surface and having a refractive index lower than that of the third transparent substrate. The light-emitting element opposes the side surface, and the third transparent substrate is adhered to the second transparent substrate while interposing the transparent layer therebetween. The light-emitting element is disposed on the second transparent substrate.

公开(公告)号：US11988865B2

公开(公告)日：2024-05-21

申请号：US17656962

申请日：2022-03-29

Applicant: Japan Display Inc.

Inventor： Zhengyi Gou ,  Kentaro Okuyama ,  Hisanori Kawakami

IPC: F21V8/00 ,  G02F1/1334 ,  G02F1/1343

CPC classification number: G02B6/0078 ,  G02B6/0068 ,  G02F1/1334 ,  G02F1/134309 ,  G02F2202/28

Abstract: According to one embodiment, a display device includes a display panel having a first side surface extending along a first direction and including a polymer dispersed liquid crystal layer, and a first light emitting module provided along the first side surface. The first light emitting module includes a plurality of first light sources arranged in the first direction, a plurality of second light sources arranged in the first direction, a first light guide provided between the plurality of first light sources and the first side surface, and a second light guide provided between the plurality of second light sources and the first side surface, and an end surface of the first light guide and an end surface of the second light guide face each other with an air layer interposed therebetween.

公开(公告)号：US11934062B2

公开(公告)日：2024-03-19

申请号：US18078332

申请日：2022-12-09

Applicant: Japan Display Inc.

Inventor： Kojiro Ikeda ,  Tenfu Nakamura ,  Kentaro Okuyama

IPC: G02F1/1334 ,  G02F1/1335

CPC classification number: G02F1/1334 ,  G02F1/13345 ,  G02F1/13347 ,  G02F1/133616

Abstract: A display device is providing and includes first substrate including first transparent substrate, and pixel electrode disposed in each of pixels on first transparent substrate; second substrate including second transparent substrate having first and second side surfaces, and common electrode disposed over pixels; and liquid crystal layer disposed between first and second substrates and including stripe-shaped polymer and liquid crystal molecules.

公开(公告)号：US11899313B2

公开(公告)日：2024-02-13

申请号：US18097631

申请日：2023-01-17

Applicant: Japan Display Inc.

Inventor： Manabu Mizuno ,  Kentaro Okuyama ,  Hiroshi Inamura ,  Hiroki Sugiyama

IPC: G02F1/13357 ,  F21V8/00 ,  G02F1/1334 ,  G02F1/137 ,  G02F1/1339 ,  G02F1/1341

CPC classification number: G02F1/133615 ,  G02B6/0055 ,  G02B6/0076 ,  G02F1/137 ,  G02F1/1334 ,  G02F1/133605 ,  G02F1/1339 ,  G02F1/1341 ,  G02F1/13756 ,  G02F2201/121

Abstract: According to an aspect, a display apparatus includes: a first light-transmissive substrate; a second light-transmissive substrate arranged to face the first light-transmissive substrate; a liquid crystal layer including polymer dispersed liquid crystals sealed between the first light-transmissive substrate and the second light-transmissive substrate; at least one light-emitting device arranged to face at least one of a side surface of the first light-transmissive substrate or a side surface of the second light-transmissive substrate; and at least one reflector arranged on at least one of a side surface of the first light-transmissive substrate or a side surface of the second light-transmissive substrate, the side surface of the first or second light-transmissive substrate being on an opposite side of the side surface of the first or second light-transmissive substrate to which the at least one light-emitting device faces, and configured to reflect light at the side surface on the opposite side.

公开(公告)号：US11709387B2

公开(公告)日：2023-07-25

申请号：US17720392

申请日：2022-04-14

Applicant: Japan Display Inc.

Inventor： Kentaro Okuyama

IPC: G02F1/1334 ,  G02F1/13357 ,  G09G3/34 ,  G09G3/36 ,  G06F3/14

CPC classification number: G02F1/1334 ,  G02F1/133615 ,  G06F3/1423 ,  G09G3/3406 ,  G09G3/3611 ,  G02F2201/16 ,  G09G2300/023

Abstract: According to one embodiment, a display device includes a first display panel, and a polarizer opposed to the first display panel and having a transmission axis for transmitting linearly polarized light. The first display panel includes a first substrate, a second substrate opposed to the first substrate, and a first liquid crystal layer held between the first substrate and the second substrate and including streak-like polymers and liquid crystal molecules. An extension direction of the polymers is substantially orthogonal to the transmission axis.

公开(公告)号：US11614650B2

公开(公告)日：2023-03-28

申请号：US17670623

申请日：2022-02-14

Applicant: Japan Display Inc.

Inventor： Tenfu Nakamura ,  Kentaro Okuyama ,  Kojiro Ikeda

IPC: G02F1/1333 ,  C09J7/00 ,  G02F1/1334 ,  F21V8/00

Abstract: According to one embodiment, a display device includes a first display panel including a first and second transparent substrate, a first liquid crystal layer, and a first light-emitting element, a second display panel including a third and fourth transparent substrate, a second liquid crystal layer and a second light emitting element, a filling member provided between the first and second display panel and having a refractive index equal to that of the first to fourth transparent substrates, a first light guide bonded to the first and second display panel, and a first adhesive member provided between the first display panel and the first light guide and between the second display panel and the first light guide.

公开(公告)号：US11531226B2

公开(公告)日：2022-12-20

申请号：US17527781

申请日：2021-11-16

Applicant: Japan Display Inc.

Inventor： Kentaro Okuyama ,  Akira Sakaigawa

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

Abstract: A display device is provided and includes a display panel including; a first substrate, a lower electrode on the first substrate, a second substrate, an upper electrode on the second substrate, and liquid crystalline polymers with a striped structure and liquid crystal molecules disposed between the first substrate and the second substrate; a light source unit disposed at a side of the display panel and configured to emit incident light on the side of the display panel; and a light guided structure disposed between the side of the display panel and the light source unit, wherein the light guided structure has a grid-like structure.

公开(公告)号：US11526046B2

公开(公告)日：2022-12-13

申请号：US17219106

申请日：2021-03-31

Applicant: Japan Display Inc.

Inventor： Kojiro Ikeda ,  Tenfu Nakamura ,  Kentaro Okuyama

IPC: G02F1/1334 ,  G02F1/1335

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.