公开(公告)号：US20230408751A1

公开(公告)日：2023-12-21

申请号：US18336054

申请日：2023-06-16

申请人： Japan Display Inc.

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

IPC分类号： F21V8/00

CPC分类号： G02B6/0076 ,  G02B6/0055 ,  G02B6/0053

摘要： According to one embodiment, an illumination device includes a first light guide, a second light guide and a plurality of light sources. The first light guide includes a first main surface, a second main surface facing the first main surface, and a first side surface connected to the second light guide. The first side surface further includes a first connection surface and a second connection surface. The first connection surface extends from an end portion of the first main surface to the second main surface and obliquely extends so as to move away from the second side surface. The second connection surface perpendicularly extends from an end portion of the first connection surface to an end portion of the second main surface.

公开(公告)号：US20240045133A1

公开(公告)日：2024-02-08

申请号：US18490401

申请日：2023-10-19

申请人： Japan Display Inc.

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

IPC分类号： F21V8/00

CPC分类号： G02B6/0076 ,  G02B6/0035 ,  G02B6/00

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：US20240255801A1

公开(公告)日：2024-08-01

申请号：US18415697

申请日：2024-01-18

申请人： Japan Display Inc.

发明人： Koji FUJISAWA ,  Michihide SHIBATA ,  Masafumi OKADA

IPC分类号： G02F1/1335 ,  G02F1/13357

CPC分类号： G02F1/133607 ,  G02F1/133603

摘要： In a backlight that includes a plurality of LEDs and a prism sheet disposed opposite to the LEDs, the prism sheet has a first surface opposite to the LEDs and a second surface on the opposite side of the first surface, a first prism having a first base and a first pitch L1 is formed on the first surface, a second prism having a cross section that is scalene triangular in shape having a second base having a length L2, a first base angle θ1, and a second base angle θ2 smaller than the first base angle is formed on the second surface, and L2

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.