公开(公告)号：US20230128012A1

公开(公告)日：2023-04-27

申请号：US17969695

申请日：2022-10-20

申请人： Japan Display Inc.

发明人： Shinichi KOMURA ,  Koichi OKUDA ,  Ken ONODA ,  Hiroaki KIJIMA

IPC分类号： G02B27/01 ,  F21V8/00

摘要： 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

申请人： Japan Display Inc.

发明人： Shinichi KOMURA ,  Koichi OKUDA ,  Ken ONODA ,  Hiroaki KIJIMA

IPC分类号： G03H1/22 ,  G02B5/30

摘要： 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

申请人： Japan Display Inc.

发明人： Shinichi KOMURA ,  Koichi OKUDA ,  Ken ONODA ,  Hiroaki KIJIMA

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

摘要： 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.

公开(公告)号：US20230010210A1

公开(公告)日：2023-01-12

申请号：US17858235

申请日：2022-07-06

申请人： Japan Display Inc.

发明人： Koji FUJISAWA ,  Ken KAGABU ,  Hiroaki KIJIMA ,  Ken ONODA

IPC分类号： F21V8/00

摘要： According to one embodiment, an illumination device, in which a plurality of light guides include a plurality of light guide pairs, each of the plurality of light guide pairs includes a first light guide and a second light guide, the plurality of light guide pairs are connected with their long sides opposed to each other, a plurality of laser light source elements include a plurality of first light source elements arranged to be opposed to a first side surface on a short side of the first light guide of the light guide pair, and a plurality of second light source elements arranged to be opposed to a second side surface of the second light guide of the light guide pair.

公开(公告)号：US20220317360A1

公开(公告)日：2022-10-06

申请号：US17657400

申请日：2022-03-31

申请人： Japan Display Inc.

发明人： Shinichi KOMURA ,  Koichi OKUDA ,  Ken ONODA ,  Hiroaki KIJIMA

IPC分类号： F21V8/00

摘要： 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：US20220113460A1

公开(公告)日：2022-04-14

申请号：US17450479

申请日：2021-10-11

申请人： Japan Display Inc.

发明人： Shinichi KOMURA ,  Junji KOBASHI ,  Koichi OKUDA ,  Ken ONODA ,  Hiroaki KIJIMA

IPC分类号： G02B5/30

摘要： According to one embodiment, a display device includes a display panel configured to emit display light of linearly polarized light, a first semi-transparent element transmitting first circularly polarized light and reflecting second circularly polarized light, a first retardation film, a second semi-transparent element reflecting the first circularly polarized light and transmitting the second circularly polarized light, a second retardation film having a refractive anisotropy in which refractive indexes of directions orthogonal to each other in a plane are substantially equivalent to each other and a refractive index in a normal is different from a refractive index in a plane, and a first element having a lens action of condensing the second circularly polarized light.

公开(公告)号：US20210041620A1

公开(公告)日：2021-02-11

申请号：US16984393

申请日：2020-08-04

申请人： Japan Display Inc.

发明人： Hiroaki KIJIMA ,  Shinichi KOMURA ,  Yoichi ASAKAWA ,  Ken ONODA

IPC分类号： F21V8/00

摘要： According to one embodiment, the illumination device includes a first area, a second area, a first light guide, a plurality of first light sources, a second light guide, a plurality of second light sources, a first layer and a second layer. The first layer extends from the first area over a boundary between the first area and the second area, to between a second side surface of the first light guide and the boundary. The second layer extends from the second area over the boundary to between a third side surface of the second light guide and the boundary.

公开(公告)号：US20230114307A1

公开(公告)日：2023-04-13

申请号：US17962548

申请日：2022-10-10

申请人： Japan Display Inc.

发明人： Shinichi KOMURA ,  Koichi OKUDA ,  Ken ONODA ,  Hiroaki KIJIMA

IPC分类号： H01S5/40

摘要： According to one embodiment, an illumination device includes a light guide including an upper surface, a lower surface and a light entering surface, a first light emitting portion, a second light emitting portion, and a third light emitting portion. A first surface, a second surface, a third surface and a fourth surface of the upper surface are arranged in this order in a first direction. A width of the first surface is less than a width of the second surface, and the width of the second surface is less than a width of the third surface. An angle between the light entering surface and the first surface is an acute angle. The first light emitting portion, the second light emitting portion and the third light emitting portion face the light entering surface.

公开(公告)号：US20220365271A1

公开(公告)日：2022-11-17

申请号：US17663043

申请日：2022-05-12

申请人： Japan Display Inc.

发明人： Hiroaki KIJIMA ,  Shinichi KOMURA ,  Koichi OKUDA ,  Ken ONODA

IPC分类号： F21V8/00

摘要： According to one embodiment, an illumination device includes a first light guide including a first main surface, a second main surface, a first side surface and a second side surface, a first light source and a first layer including a first prism provided on the second side surface. The first prism protrudes from the second main surface toward the opposite side to the first main surface and has a cross-sectional shape of a triangle with a first slope and a second slope. The incident angle of light emitted from the first light source and entering the first light guide from the second side surface, the angle between the first slope and the first direction, and the angle between the first slope and the second slope are set to values that satisfy the predetermined conditions, respectively.

公开(公告)号：US20180107029A1

公开(公告)日：2018-04-19

申请号：US15730076

申请日：2017-10-11

申请人： Japan Display Inc.

发明人： Ken ONODA ,  Shinichi KOMURA ,  Youichi ASAKAWA ,  Toshihiko FUKUMA

IPC分类号： G02F1/01 ,  F21V8/00 ,  G02F1/1335

CPC分类号： G02F1/0105 ,  G02B6/003 ,  G02B6/0036 ,  G02F1/133514 ,  G02F1/133526 ,  G02F1/133528 ,  G02F1/133615 ,  G02F2001/133607

摘要： According to one embodiment, an illumination device includes a first member, a second member, a first light source. The first member includes a first prism array including first prisms aligned in a first direction. The second member includes a second prism array including second prisms aligned in a second direction. The second member disposed more closely to a first A side than to the first member. The first light source disposed more closely to a second A side than to the second member to apply a parallel light beam to a second B side. The parallel light beam from the first light source is made incident on the second prism array and incident on the first prism array without passing through a light guide.