公开(公告)号：US11740510B2

公开(公告)日：2023-08-29

申请号：US17651845

申请日：2022-02-21

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 ,  G02F1/1368 ,  G02F1/136286

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：US11719877B2

公开(公告)日：2023-08-08

申请号：US17884975

申请日：2022-08-10

Applicant: Japan Display Inc.

Inventor： Yudai Numata ,  Kentaro Okuyama

IPC: F21V8/00 ,  G02F1/13357 ,  G02F1/1335 ,  G02F1/1333 ,  G02F1/1334

CPC classification number: G02B6/0088 ,  G02B6/0055 ,  G02B6/0075 ,  G02B6/0091 ,  G02F1/133331 ,  G02F1/133615 ,  G02F1/133616 ,  G02B6/0068 ,  G02F1/13347

Abstract: According to one embodiment, a display device includes a first transparent substrate including a first main surface, a second transparent substrate including a first end portion, a liquid crystal layer containing strip-shaped polymers and liquid crystal molecules, a third transparent substrate including a second end portion and a second main surface, a first light-emitting element and a first light guide. The first light guide includes a first surface and a second surface. A height from the first main surface to the second surface is less than a height from the first main surface to the second main surface.

公开(公告)号：US11668867B2

公开(公告)日：2023-06-06

申请号：US17722836

申请日：2022-04-18

Applicant: Japan Display Inc.

Inventor： Kentaro Okuyama ,  Yudai Numata

IPC: F21V8/00 ,  G02F1/1334

CPC classification number: G02B6/0046 ,  G02B6/0055 ,  G02B6/0083 ,  G02F1/1334 ,  G02B6/0073

Abstract: According to one embodiment, a display device includes a first substrate, a second substrate opposed to the first substrate and including an end portion, a liquid crystal layer provided between the first substrate and the second substrate and including a polymer in a shape of a streak and a liquid crystal molecule, a light-emitting element having a light emitting portion opposed to the end portion, and a light guide located between the end portion and the light emitting portion.

公开(公告)号：US11644709B2

公开(公告)日：2023-05-09

申请号：US17830563

申请日：2022-06-02

Applicant: Japan Display Inc.

Inventor： Tae Kurokawa ,  Kentaro Okuyama

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

CPC classification number: G02F1/133512 ,  G02F1/1334 ,  G02F1/133553 ,  G02F1/133615 ,  G02F1/1337 ,  G02F1/13452 ,  G02F1/133345 ,  G02F1/133365 ,  G02F1/134309 ,  G02F2201/121 ,  G02F2201/123

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：US11614661B2

公开(公告)日：2023-03-28

申请号：US17656475

申请日：2022-03-25

Applicant: Japan Display Inc.

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

IPC: G02F1/1339

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 the 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 liquid crystal supply portion is provided along one side of the peripheral region. The peripheral region includes a first peripheral region located between the display region and the sealing portion. An insulating film is removed in the first peripheral region. In the first peripheral region, a plurality of second spacer members and a plurality of third spacer members to support the plurality of second spacer members are provided.

公开(公告)号：US11360256B2

公开(公告)日：2022-06-14

申请号：US17351807

申请日：2021-06-18

Applicant: Japan Display Inc.

Inventor： Yudai Numata ,  Kentaro Okuyama

IPC: F21V8/00 ,  G02F1/1334 ,  G02F1/1339

Abstract: According to one embodiment, a display device includes a first transparent substrate, a second transparent substrate, a liquid crystal layer, light-emitting elements disposed in a first direction, a third transparent substrate including a main surface and a side surface opposed to the light-emitting elements, and a transparent layer disposed on the main surface and having a lower refractive index than the third transparent substrate. The third transparent substrate is bonded to the first transparent substrate or the second transparent substrate with the transparent layer sandwiched in between. The transparent layer includes strip portions disposed in the first direction and extended along a second direction.

公开(公告)号：US11346996B2

公开(公告)日：2022-05-31

申请号：US17317104

申请日：2021-05-11

Applicant: Japan Display Inc.

Inventor： Kentaro Okuyama ,  Yudai Numata

IPC: F21V8/00 ,  G02F1/1334

Abstract: According to one embodiment, a display device includes a first substrate, a second substrate opposed to the first substrate and including an end portion, a liquid crystal layer provided between the first substrate and the second substrate and including a polymer in a shape of a streak and a liquid crystal molecule, a light-emitting element having a light emitting portion opposed to the end portion, and a light guide located between the end portion and the light emitting portion.

公开(公告)号：US11237431B2

公开(公告)日：2022-02-01

申请号：US17115201

申请日：2020-12-08

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

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：US11194198B2

公开(公告)日：2021-12-07

申请号：US16360670

申请日：2019-03-21

Applicant: Japan Display Inc.

Inventor： Kentaro Okuyama

IPC: G02F1/1347 ,  G02F1/1334 ,  G02F1/1335 ,  G02F1/13357 ,  G02F1/13363

Abstract: According to one embodiment, there is provided a display device including a first display panel, a second display panel, a polarizer, and a light source unit. The first display panel includes a first liquid crystal layer. The second display panel includes a second liquid crystal layer. The polarizer has an absorption axis which allows absorption of linearly polarized light. The light source unit is opposed to a first end portion of the first display panel and a second end portion of the second display panel. Each of the first liquid crystal layer and the second liquid crystal layer includes streak-like polymers and liquid crystal molecules.

公开(公告)号：US11187932B2

公开(公告)日：2021-11-30

申请号：US16903784

申请日：2020-06-17

Applicant: Japan Display Inc.

Inventor： Yudai Numata ,  Kentaro Okuyama

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

Abstract: According to one embodiment, a display device includes a first substrate, a second substrate including a first end portion and a second end portion located at a position different from the first end portion, a polymer dispersed liquid crystal layer disposed between the first substrate and the second substrate, a light source device located above the first substrate and disposed along the first end portion, and a light-shielding member disposed on at least a part of the second end portion.