公开(公告)号：US20230040499A1

公开(公告)日：2023-02-09

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

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：US20220221644A1

公开(公告)日：2022-07-14

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

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：US20210405465A1

公开(公告)日：2021-12-30

申请号：US17474205

申请日：2021-09-14

Applicant: Japan Display Inc.

Inventor： Tenfu NAKAMURA ,  Kojiro IKEDA ,  Kentaro OKUYAMA

IPC: G02F1/1343 ,  G02F1/1334 ,  G02F1/1339

Abstract: According to one embodiment, a display device includes a first substrate including a pixel electrode, a second substrate including a common electrode, a liquid crystal layer located between the first substrate and the second substrate and containing polymer and liquid crystal molecules, and a light emitting element opposed to an end surface of the second substrate, the common electrode being separated from the pixel electrode by a first distance, at a first position, the common electrode being separated from the pixel electrode by a second distance, at a second position more separated from the light emitting element than the first position, the second distance being smaller than the first distance.

公开(公告)号：US20210311243A1

公开(公告)日：2021-10-07

申请号：US17351807

申请日：2021-06-18

Applicant: Japan Display Inc.

Inventor： Yudai NUMATA ,  Kentaro OKUYAMA

IPC: F21V8/00

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：US20210286226A1

公开(公告)日：2021-09-16

申请号：US17331732

申请日：2021-05-27

Applicant: Japan Display Inc.

Inventor： Hiroki SUGIYAMA ,  Yoshihide OHUE ,  Manabu MIZUNO ,  Kentaro OKUYAMA

IPC: G02F1/1362 ,  G02F1/1368

Abstract: A display device according to an aspect includes: an array substrate including a plurality of first light-transmitting electrodes each disposed in a corresponding one of pixels; a counter substrate including positions that overlap the first light-transmitting electrodes in a plan view and are provided with a second light-transmitting electrode; a liquid crystal layer including polymer-dispersed liquid crystals filled between the array substrate and the counter substrate; and at least one light emitter configured to emit light toward a side surface of the counter substrate. The array substrate includes, in each of the pixels, a third light-transmitting electrode and a conductive metal layer. The third light-transmitting electrode at least partially overlaps the first light-transmitting electrode in the plan view with an inorganic insulating layer interposed therebetween, and the conductive metal layer is stacked on the third light-transmitting electrode.

公开(公告)号：US20210286220A1

公开(公告)日：2021-09-16

申请号：US17336786

申请日：2021-06-02

Applicant: Japan Display Inc.

Inventor： Manabu MIZUNO ,  Yoshihide OHUE ,  Hiroki SUGIYAMA ,  Kentaro OKUYAMA

IPC: G02F1/1362 ,  G02F1/1334 ,  G02F1/13357 ,  G09G3/34 ,  G09G3/36

Abstract: A display device includes: an array substrate including a plurality of first light-transmitting electrodes each disposed in a corresponding one of pixels; a counter substrate including positions overlapping the first light-transmitting electrodes and provided with a second light-transmitting electrode; a liquid crystal layer including polymer-dispersed liquid crystals filled between the array substrate and the counter substrate; and at least one light source configured to emit light toward a side surface of the counter substrate. The array substrate includes, in each of the pixels, a third light-transmitting electrode that at least partially overlaps the first light-transmitting electrode in the plan view with an insulating layer interposed therebetween. An area of the third light-transmitting electrode in the pixel in a display region closer to the light source is larger than an area of the third light-transmitting electrode in the pixel in a display region farther from the light source.

公开(公告)号：US20210232010A1

公开(公告)日：2021-07-29

申请号：US17231179

申请日：2021-04-15

Applicant: Japan Display Inc.

Inventor： Yudai NUMATA ,  Kentaro OKUYAMA ,  Kojiro IKEDA

IPC: G02F1/1362 ,  G02F1/1368

Abstract: According to one embodiment, a display device includes a first substrate including a first transparent substrate, a wiring portion, and a pixel electrode, a second substrate including a second transparent substrate, a common electrode opposed to the pixel electrode, a light-shielding layer overlapping the wiring portion between the second transparent substrate and the common electrode, and a transparent layer disposed between the second transparent substrate and the light-shielding layer, a liquid crystal layer including a stripe-shaped polymer and liquid crystal molecules, and light-emitting elements. A refractive index of the transparent layer is less than a refractive index of the second transparent substrate.

公开(公告)号：US20210192994A1

公开(公告)日：2021-06-24

申请号：US17192063

申请日：2021-03-04

Applicant: Japan Display Inc.,

Inventor： Yoshiro AOKI ,  Kentaro OKUYAMA

IPC: G09G3/00 ,  G09G5/38 ,  G03B21/62 ,  G02F1/137 ,  G02F1/1343 ,  G02F1/1334 ,  G02F1/167 ,  G02F1/1676 ,  G02F1/1685

Abstract: According to one embodiment, a display system includes a transparent screen that is capable of switching a light scattering degree, a projector, and a controller that controls interlocking driving of the projector and the screen. The controller drives the screen and controls a light scattering degree of at least part of an area, of the screen, in which the image is projected during a period in which the projector is driven and an image is projected on the screen.

公开(公告)号：US20210026171A1

公开(公告)日：2021-01-28

申请号：US17071079

申请日：2020-10-15

Applicant: Japan Display Inc.

Inventor： Yudai NUMATA ,  Kentaro OKUYAMA

IPC: G02F1/1334 ,  G02F1/1335 ,  G02F1/133 ,  F21V8/00 ,  G09G3/36 ,  G02F1/1343

Abstract: According to one embodiment, a display device includes a display panel, a light emitting element, a light guide layer and a first optical layer. The display panel includes a first substrate, a second substrate opposed to the first substrate, and a polymer dispersed liquid crystal layer which is held between the first substrate and the second substrate and contains a polymer and a liquid crystal molecule. The light guide layer has a first surface opposed to the display panel, and an edge opposed to the light emitting element. The first optical layer is located between the display panel and the light guide layer. A refractive index of the first optical layer is lower than a refractive index of the light guide layer.

公开(公告)号：US20200341332A1

公开(公告)日：2020-10-29

申请号：US16923707

申请日：2020-07-08

Applicant: Japan Display Inc.

Inventor： Hiroki SUGIYAMA ,  Kentaro OKUYAMA ,  Manabu MIZUNO

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

Abstract: According to an aspect, a display device includes: a first light-transmitting substrate; a second light-transmitting substrate disposed so as to face the first light-transmitting substrate; a liquid crystal layer comprising polymer dispersed liquid crystals between the first light-transmitting substrate and the second light-transmitting substrate; and a multilayered film on an outer surface or surfaces of at least one of the first light-transmitting substrate and the second light-transmitting substrate, the multilayered film being configured to reflect light from the first light-transmitting substrate or the second light-transmitting substrate, and absorb light from outside the first light-transmitting substrate or the second light-transmitting substrate.