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：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.

公开(公告)号：US11073652B2

公开(公告)日：2021-07-27

申请号：US17147529

申请日：2021-01-13

Applicant: Japan Display Inc.

Inventor： Yudai Numata ,  Kentaro Okuyama

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

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：US11035995B2

公开(公告)日：2021-06-15

申请号：US16357518

申请日：2019-03-19

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：US10302986B2

公开(公告)日：2019-05-28

申请号：US15659859

申请日：2017-07-26

Applicant: Japan Display Inc.

Inventor： Takeo Koito ,  Yudai Numata

IPC: G02F1/00 ,  G02F1/1335 ,  G02F1/03 ,  G02F1/13363 ,  G02F1/136

Abstract: According to one embodiment, a display device includes an illumination unit, a polarizing element which transmits a specific polarized component of light entering from the illumination unit, a display panel which transmits the polarized light entering from the polarizing element while maintaining or converting a polarized state, an optical element comprising a transmission axis which transmits first linearly polarized light, which transmits or reflects the light entering from the display panel and a reflective element which retro-reflects the light reflected by the optical element, and the display panel and the reflective element face one surface of the optical element.

公开(公告)号：US10222528B2

公开(公告)日：2019-03-05

申请号：US15440751

申请日：2017-02-23

Applicant: Japan Display Inc.

Inventor： Yudai Numata ,  Takeo Koito

IPC: G02B5/30 ,  G02B5/08 ,  G02B5/124

Abstract: According to one embodiment, a display device includes an optical element urging incident light to be transmitted or reflected, a first reflective element includes a first retroreflective surface in an uneven state on which the light reflected on the optical element is retroreflected, and a first specular reflection surface on which the light reflected on the optical element is specularly reflected, and a second reflective element includes a second retroreflective surface in an uneven state on which the light reflected on the first specular reflection surface is retroreflected.

公开(公告)号：US20190004377A1

公开(公告)日：2019-01-03

申请号：US16018841

申请日：2018-06-26

Applicant: Japan Display Inc.

Inventor： Kentaro Okuyama ,  Yudai Numata

IPC: G02F1/1337 ,  G02F1/1334 ,  G02F1/1333 ,  G02F1/1362 ,  G02F1/1368 ,  G02F1/1335 ,  G09G3/36

Abstract: According to one embodiment, a display device includes a first substrate including a scanning line and a pixel electrode, a second substrate opposed to the first substrate, and a liquid crystal layer held between the first substrate and the second substrate and including streaky polymers and liquid crystal molecules, wherein the liquid crystal layer includes a first area overlapping the scanning line and a second area overlapping the pixel electrode, and the polymers of the first area are denser than the polymers of the second area.

公开(公告)号：US20180259810A1

公开(公告)日：2018-09-13

申请号：US15917062

申请日：2018-03-09

Applicant: Japan Display Inc.

Inventor： Yudai Numata ,  Takeo Koito

IPC: G02F1/1335 ,  H01L27/12 ,  G02B27/28

Abstract: According to one embodiment, a display device includes first and second retroreflective elements which retroreflect incident light, an optical element which is located between the first retroreflective element and the second retroreflective element, and includes a first surface facing the first retroreflective element and a second surface facing the second retroreflective element and a display unit which is located on a side facing the first surface and emits display light.

公开(公告)号：US20170285359A1

公开(公告)日：2017-10-05

申请号：US15471598

申请日：2017-03-28

Applicant: Japan Display Inc.

Inventor： Yudai Numata ,  Takeo Koito

IPC: G02B27/22 ,  G02B5/124 ,  G02B27/26 ,  G02B5/30

CPC classification number: G02B27/2292 ,  G02B5/124 ,  G02B5/3058 ,  G02B5/3083 ,  G02B27/26

Abstract: According to one embodiment, a display device includes a display module which emits display light, a polarizing element including a transmission axis which transmits first linearly polarized light, the polarizing element reflecting second linearly polarized light intersecting the transmission axis, and an optical element includes a retroreflector which retroreflects light reflected from the polarizing element, the optical element being curved, and includes a first portion which is concave, and a second portion which is convex and is connected to the first portion.