公开(公告)号：US12013563B2

公开(公告)日：2024-06-18

申请号：US18359029

申请日：2023-07-26

Applicant: Japan Display Inc.

Inventor： Yudai Numata ,  Kentaro Okuyama

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

CPC classification number: G02B6/005 ,  G02B6/0091 ,  G02F1/13347 ,  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：US11988917B2

公开(公告)日：2024-05-21

申请号：US18331392

申请日：2023-06-08

Applicant: Japan Display Inc.

Inventor： Yudai Numata

IPC: G02F1/1335 ,  G02F1/1333

CPC classification number: G02F1/133507 ,  G02F1/13338 ,  G02F1/133526

Abstract: According to one embodiment, a display device includes a display panel including a first substrate including a first transparent substrate having a first main surface, a first opposite and a side surface, a second substrate including a second transparent substrate having a second main surface and a second opposite surface, and a liquid crystal layer located between the first substrate and the second substrate, a light emitting element opposed to the side surface, a third transparent substrate, and a transparent layer located between the display panel and the third transparent substrate and having a second refractive index that is lower than a first refractive index.

公开(公告)号：US11892722B2

公开(公告)日：2024-02-06

申请号：US18180275

申请日：2023-03-08

Applicant: Japan Display Inc.

Inventor： Yudai Numata ,  Kentaro Okuyama

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

CPC classification number: G02F1/1334 ,  G02F1/1343 ,  G02F1/133504 ,  G02F1/133512 ,  G02F1/133553 ,  G02F1/133615 ,  G02F1/133616 ,  G02F2201/121 ,  G02F2201/123

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.

公开(公告)号：US11624948B2

公开(公告)日：2023-04-11

申请号：US17495236

申请日：2021-10-06

Applicant: Japan Display Inc.

Inventor： Yudai Numata ,  Kentaro Okuyama

IPC: G02F1/1333 ,  G02F1/1335 ,  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.

公开(公告)号：US11614649B2

公开(公告)日：2023-03-28

申请号：US17886247

申请日：2022-08-11

Applicant: Japan Display Inc.

Inventor： Yudai Numata

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

Abstract: According to one embodiment, a display device includes, a first transparent substrate having a side surface and a main surface, a first alignment film disposed along the main surface, a first transparent layer located between the first transparent substrate and the first alignment film, a second transparent substrate, a pixel electrode electrically connected to a switching element, a liquid crystal layer, and a light-emitting element opposed to the side surface. The first transparent layer overlaps a part of the pixel electrode and has a lower refractive index than the first transparent substrate.

公开(公告)号：US11543580B2

公开(公告)日：2023-01-03

申请号：US17662511

申请日：2022-05-09

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：US11448819B2

公开(公告)日：2022-09-20

申请号：US17221868

申请日：2021-04-05

Applicant: Japan Display Inc.

Inventor： Yudai Numata ,  Kentaro Okuyama

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

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：US11022832B2

公开(公告)日：2021-06-01

申请号：US16380289

申请日：2019-04-10

Applicant: Japan Display Inc.

Inventor： Yudai Numata ,  Kentaro Okuyama

IPC: G02F1/1334 ,  F21V8/00 ,  G02F1/1335 ,  G02F1/13357 ,  G02F1/1362 ,  G02F1/1368 ,  G02F1/1339

Abstract: According to one embodiment, a display device includes a first light guide including a first main surface, a second main surface, a first end portion opposed to light-emitting elements, and a second end portion, a first layer which is arranged to be in contact with the first main surface, and a second layer which is arranged to be in contact with the first main surface, and is located between the first layer and the second end portion, wherein the first light guide has a first refractive index, the first layer has a second refractive index lower than the first refractive index, the second layer has a third refractive index higher than the second refractive index, and the first layer is located at a position closer to the first end portion than the second layer.

公开(公告)号：US10649272B2

公开(公告)日：2020-05-12

申请号：US15866527

申请日：2018-01-10

Applicant: Japan Display Inc.

Inventor： Yudai Numata ,  Takeo Koito

IPC: G02F1/1335 ,  G02B5/126 ,  G02B27/22 ,  G02B5/124

Abstract: According to one embodiment, a display device includes a display which emits display light, an optical element including a transmission axis which transmit first linearly polarized light, which reflects second linearly polarized light crossing the transmission axis and a retroreflective element which retroreflects the display light, and the retroreflective element includes a first portion including a first surface, a second portion including a second surface and a third portion disposed between the first surface and the second surface, and an angle made by the first surface and the second surface is greater than 0° and less than 180°.

公开(公告)号：US10268070B2

公开(公告)日：2019-04-23

申请号：US15478579

申请日：2017-04-04

Applicant: Japan Display Inc.

Inventor： Takeo Koito ,  Yudai Numata

IPC: G02F1/1335 ,  G02B5/12 ,  G02B5/124 ,  G02B5/128 ,  G02B27/22 ,  G02F1/13363

Abstract: According to one embodiment, a display device includes an optical element which transmits or reflects incident light, and a first reflective element including a first reflective portion and a second reflective portion. The first reflective portion retroreflects reflective light reflected on the optical element. The second reflective portion has an area less than an area of the first reflective portion and regularly reflects the reflective light.