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.

公开(公告)号：US20230127372A1

公开(公告)日：2023-04-27

申请号：US17970681

申请日：2022-10-21

Applicant: Japan Display Inc.

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

IPC: G03H1/22 ,  G02B5/30

Abstract: According to one embodiment, a display device includes a display panel, a holographic element which reflects light having a specific incident angle and transmits light having an incident angle different from the specific incident angle, a retardation film provided between the display panel and the holographic element, a transflective element which reflects, of the light which passed through the holographic element, first circularly polarized light, and transmits second circularly polarized light rotating in an opposite direction of the first circularly polarized light, and a lens element which has a lens effect of condensing the second circularly polarized light which passed through the transflective element.

公开(公告)号：US20220113544A1

公开(公告)日：2022-04-14

申请号：US17450482

申请日：2021-10-11

Applicant: Japan Display Inc.

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

IPC: G02B27/01 ,  G02F1/1335 ,  G02F1/13363

Abstract: According to one embodiment, a display device including a display panel configured to emit display light of linear polarization, a first retardation plate, a second retardation plate, a reflective polarizer configured to pass first linear polarized light, and to reflect second linear polarized light, a transflective layer including a concave surface opposed to the second retardation plate, and a transparent solid with almost zero refractive anisotropy, wherein the first retardation plate and the second retardation plate are a quarter-wave plate, and the transparent solid includes a first surface shaped convex to be opposed to the concave surface, and a second surface opposed to the reflective polarizer.