公开(公告)号：US20170357041A1

公开(公告)日：2017-12-14

申请号：US15617568

申请日：2017-06-08

Applicant: Japan Display Inc.

Inventor： Ken ONODA ,  Shinichi KOMURA ,  Youichi ASAKAWA ,  Toshihiko FUKUMA

IPC: F21V8/00

CPC classification number: G02B6/002 ,  G02B6/0031 ,  G02B6/0038 ,  G02B6/0068

Abstract: In one embodiment, an illumination device comprises a light source, a light guide having an incidence surface, and a light refraction structure on the surface. The light guide has an irradiation direction, a thickness direction, and a width direction. The light guide has a first surface in the thickness direction and a second surface in the width direction. A first length in the width direction is greater than a second length in the thickness direction, in the structure. The light from the light source having passed through the structure is reflected on the first surface in the thickness direction and passes through the second surface in the width direction.

公开(公告)号：US20170178577A1

公开(公告)日：2017-06-22

申请号：US15454045

申请日：2017-03-09

Applicant: Japan Display Inc. ,  Panasonic Liquid Crystal Display Co., Ltd.

Inventor： Shoichi HIROTA ,  Shinichi KOMURA ,  Yoshifumi SEKIGUCHI ,  Tsunenori YAMAMOTO ,  Masaya ADACHI

IPC: G09G3/36 ,  G02F1/1368 ,  G02F1/1362 ,  G09G3/20

Abstract: In a color display device, when using white (W) sub-pixels in addition to subpixels of red (R) and green (G) plus blue (B) without increasing a wiring line number, the per-color pixel number in a unit area decreases so that the image resolution is deteriorated. The area and number of subpixels are adjusted in accordance with the visual sensitivity or luminosity required. Practically, the area of red (R) and blue (B) subpixels which are relatively low in luminosity is set to be about two times greater than the area of green (G) and white (W) subpixels that are relatively high in luminosity while letting the number of green (G) and white (W) subpixels be twice the number of red (R) and blue (B) subpixels. A larger subpixel is configured from a plurality of unit subpixels. A smaller subpixel is formed of a one unit subpixel.

公开(公告)号：US20170153376A1

公开(公告)日：2017-06-01

申请号：US15363055

申请日：2016-11-29

Applicant: Japan Display Inc.

Inventor： Ken ONODA ,  Shinichi KOMURA ,  Youichi ASAKAWA ,  Toshihiko FUKUMA

IPC: F21V8/00 ,  G02F1/1335

CPC classification number: G02B6/0031 ,  G02B6/0023 ,  G02B6/0028 ,  G02B6/003 ,  G02B6/0038 ,  G02B6/0056 ,  G02B6/0068 ,  G02F1/133504 ,  G02F1/133512 ,  G02F1/133514 ,  G02F1/133528 ,  G02F1/13362 ,  G02F2001/133562

Abstract: In one embodiment, a light-emitting device includes a light source unit which emits polarized light in a first direction, a bending portion which is irradiated with the polarized light in the first direction and bends the light in a second direction, and a lightguide member which is irradiated with the polarized light caused to bend in the bending portion. The lightguide member comprises an exit surface, bends the polarized light in a third direction, and emits the light through the exit surface. The light source unit includes a first source which emits first light, and a second source which emits second light. The bending portion includes a first incident portion which the first light enters, and a second incident portion which the second light enters.

公开(公告)号：US20240255805A1

公开(公告)日：2024-08-01

申请号：US18534892

申请日：2023-12-11

Applicant: Japan Display Inc.

Inventor： Shinichi KOMURA ,  Yasuhiro TAKAHASHI ,  Jin HIROSAWA

IPC: G02F1/13363 ,  G02F1/1335

CPC classification number: G02F1/133638 ,  G02F1/133536 ,  G02B5/32 ,  G02F2413/03 ,  G02F2413/05 ,  G02F2413/06

Abstract: According to one embodiment, a display device includes a display module configured to emit display light which is linearly polarized light, a first structure including a first retardation film facing the display module, a holographic optical element facing the first retardation film, and a second retardation film facing the holographic optical element, a second structure including a reflective polarizer facing the second retardation film, and a transparent substrate facing the reflective polarizer, and a variable mechanism by which an interval between the first structure and the second structure is made variable.

公开(公告)号：US20240192424A1

公开(公告)日：2024-06-13

申请号：US18537215

申请日：2023-12-12

Applicant: Japan Display Inc.

Inventor： Koichi OKUDA ,  Shinichi KOMURA ,  Hiroaki KIJIMA ,  Jin HIROSAWA ,  Yasuhiro TAKAHASHI

IPC: F21V8/00

CPC classification number: G02B6/0023 ,  G02B6/0045 ,  G02B6/0066

Abstract: A display device includes a display panel, and a lighting device configured to illuminate the display panel. The lighting device includes a light-guiding plate, a light-emitting element configured to emit a red laser beam toward a side surface of the light-guiding plate, and a phase difference plate placed between the side surface of the light-guiding plate and the light-emitting element.

公开(公告)号：US20240118481A1

公开(公告)日：2024-04-11

申请号：US18542788

申请日：2023-12-18

Applicant: Japan Display Inc.

Inventor： Yuji MAEDE ,  Shinichi KOMURA ,  Hiroaki KIJIMA

IPC: F21V8/00

CPC classification number: G02B6/0061 ,  G02B6/0036 ,  G02B6/0068

Abstract: According to one embodiment, an illumination device comprises a light guide, a light source, a reflective layer, a first prism and a second prism, wherein the light guide has a thickness in a second direction increasing toward a second side surface, the first prism and the second prism have cross-sectional shapes being formed in a triangle shape, a first height of the first prism in the second direction is smaller than a second height of the second prism in the second direction.

公开(公告)号：US20240012249A1

公开(公告)日：2024-01-11

申请号：US18348436

申请日：2023-07-07

Applicant: Japan Display Inc.

Inventor： Hiroaki KIJIMA ,  Yasuhiro TAKAHASHI ,  Shinichi KOMURA ,  Koichi OKUDA

IPC: G02B27/01 ,  G02B5/30 ,  G02F1/1335

CPC classification number: G02B27/0172 ,  G02B5/3083 ,  G02F1/133536 ,  G02B2027/0174 ,  G02F1/133541 ,  G02F1/133543

Abstract: According to one embodiment, a display device includes a display panel, a first retardation film that faces the display panel, a holographic optical element that is bonded to the first retardation film, a second retardation film that is bonded to the holographic optical element, and a reflective polarizer that faces the second retardation film, reflects first linearly polarized light, and transmits second linearly polarized light that is orthogonal to the first linearly polarized light, wherein an air layer is interposed between the second retardation film and the reflective polarizer, a surface of the second retardation film facing the reflective polarizer is covered with an antireflective film.

公开(公告)号：US20230333307A1

公开(公告)日：2023-10-19

申请号：US18338521

申请日：2023-06-21

Applicant: Japan Display Inc.

Inventor： Shinichi KOMURA ,  Koichi OKUDA ,  Ken ONODA ,  Hiroaki KIJIMA

IPC: F21V8/00

CPC classification number: G02B6/0045 ,  G02B6/0055 ,  G02B6/0091 ,  G02B6/0046 ,  G02B6/0036 ,  G02B6/0048

Abstract: According to an embodiment, an illumination device includes a light guide having a first plane, a second plane opposed to the first plane and substantially parallel to the first plane, and a tilted plane opposed to the first plane and tilted to the first plane, the tilted plane and the second plane being arranged in a first direction, and a light emitting device including a first light emitting part, a second light emitting part, and a third light emitting part which are located directly below the tilted plane, arranged in the first direction, and configured to emit light having wavelengths different from each other.

公开(公告)号：US20230296824A1

公开(公告)日：2023-09-21

申请号：US18169896

申请日：2023-02-16

Applicant: Japan Display Inc.

Inventor： Yuji MAEDE ,  Shinichi KOMURA ,  Hiroaki KIJIMA

IPC: F21V8/00

CPC classification number: G02B6/0061 ,  G02B6/0036 ,  G02B6/0068

Abstract: According to one embodiment, an illumination device comprises a light guide, a light source, a reflective layer, a first prism and a second prism, wherein the light guide has a thickness in a second direction increasing toward a second side surface, the first prism and the second prism have cross-sectional shapes being formed in a triangle shape, a first height of the first prism in the second direction is smaller than a second height of the second prism in the second direction.

公开(公告)号：US20230128012A1

公开(公告)日：2023-04-27

申请号：US17969695

申请日：2022-10-20

Applicant: Japan Display Inc.

Inventor： Shinichi KOMURA ,  Koichi OKUDA ,  Ken ONODA ,  Hiroaki KIJIMA

IPC: G02B27/01 ,  F21V8/00

Abstract: According to one embodiment, an illumination device includes a light guide, a plurality of light source elements, and a reflector including a first portion parallel to a second edge of the light guide and a second portion parallel to a third edge of the light guide, and the third edge includes first short edges extending in the first direction and second short edges extending in the second direction, which are alternately arranged, and the second portion includes first pieces extending in the first direction and second pieces extending in the second direction, which are alternately arranged.