公开(公告)号：US20190137820A1

公开(公告)日：2019-05-09

申请号：US16240281

申请日：2019-01-04

Applicant: Japan Display Inc.

Inventor： Ken SUGIYAMA ,  Koji HIRAMOTO ,  Taketoshi MASAMOTO ,  Kazunari NISHITA

IPC: G02F1/1335 ,  G02F1/1333

CPC classification number: G02F1/133603 ,  G02F1/133308 ,  G02F2001/133314 ,  G02F2001/133317 ,  G02F2001/133607

Abstract: According to one embodiment, a backlight device includes a support frame including a first frame body including a pair of first frame members and a second frame member connected to respective ends of the first frame members and a second frame body being separate from the first frame body, which connects other respective ends of the first frame members to each other, a reflective sheet on the support frame, a light guide on the reflective sheet within the support frame, an optical sheet on the light guide, and a light source unit in the support frame. The light source unit includes a wiring board on the second frame body and a light source on the wiring board, opposing an incidence surface of the light guide.

公开(公告)号：US20190018276A1

公开(公告)日：2019-01-17

申请号：US16034486

申请日：2018-07-13

Applicant: Japan Display Inc.

Inventor： Taketoshi MASAMOTO ,  Kosuke MATSUBARA

IPC: G02F1/1333 ,  F21V8/00

CPC classification number: G02F1/133308 ,  G02B6/0043 ,  G02B6/005 ,  G02B6/0051 ,  G02B6/0053 ,  G02B6/0055 ,  G02B6/0081 ,  G02B6/0083 ,  G02B6/0091 ,  G02F2001/133317 ,  G02F2001/133607

Abstract: According to one embodiment, an illumination device includes a light guide, a light source device and an optical sheet. The light guide has an emission surface and side surfaces which intersect the emission surface, and at least one side surface is located inside a display area. The light source device emits light to the light guide. The optical sheet is provided on the emission surface and is opposed to the display area. The optical sheet has an edge portion which covers an area between the one side surface and an edge of the display area, and a transmittance adjustment area which is provided in the edge portion and reduces a transmittance of the edge portion.

公开(公告)号：US20180149922A1

公开(公告)日：2018-05-31

申请号：US15823876

申请日：2017-11-28

Applicant: Japan Display Inc.

Inventor： Ken SUGIYAMA ,  Koji HIRAMOTO ,  Taketoshi MASAMOTO ,  Kazunari NISHITA

IPC: G02F1/1335

CPC classification number: G02F1/133603 ,  G02F1/133308 ,  G02F2001/133314 ,  G02F2001/133317 ,  G02F2001/133607

Abstract: According to one embodiment, a backlight device includes a support frame including a first frame body including a pair of first frame members and a second frame member connected to respective ends of the first frame members and a second frame body being separate from the first frame body, which connects other respective ends of the first frame members to each other, a reflective sheet on the support frame, a light guide on the reflective sheet within the support frame, an optical sheet on the light guide, and a light source unit in the support frame. The light source unit includes a wiring board on the second frame body and a light source on the wiring board, opposing an incidence surface of the light guide.