公开(公告)号：US20220252782A1

公开(公告)日：2022-08-11

申请号：US17730260

申请日：2022-04-27

Applicant: Japan Display Inc.

Inventor： Kazunari NISHITA ,  Ken SUGIYAMA ,  Tetsuro OCHI ,  Toshiyuki TSUBOTA

IPC: F21V8/00 ,  G02F1/1333 ,  G02F1/1335

Abstract: According to one embodiment, an illumination device includes a light source disposed along a first direction, a light guide plate including a first end and a second end, the second end being positioned to be opposite to the first end in a second direction which crosses the first direction, a frame disposed along the second end and including an inner surface and an upper surface, and an adhesion member disposed on at least the upper surface of the frame, wherein the light source is disposed at the first end along the first direction, at least the inner surface of the frame is a light absorbing surface, and the adhesion member is light transmissive.

公开(公告)号：US20180321543A1

公开(公告)日：2018-11-08

申请号：US16020399

申请日：2018-06-27

Applicant: Japan Display Inc.

Inventor： Tetsuro OCHI ,  Ken SUGIYAMA ,  Toshiyuki TSUBOTA ,  Kazunari NISHITA

IPC: G02F1/1333 ,  F21V8/00 ,  G02F1/13357

CPC classification number: G02F1/133308 ,  G02B6/005 ,  G02B6/0065 ,  G02B6/0078 ,  G02B6/0083 ,  G02B6/0088 ,  G02B6/009 ,  G02F1/1336 ,  G02F2001/133314 ,  G02F2001/133317 ,  G02F2202/28

Abstract: According to one embodiment, a backlight device includes a frame formed of a sheet material, a first adhesive layer provided on one surface of the frame, a reflective sheet attached to the frame with the first adhesive layer, an optical member disposed on the reflective sheet in the frame, and a light source disposed in the frame and configured to emit light to the optical member. In at least a part of the frame, a width of the frame and a width of the first adhesive layer are equal to each other, and at least an external surface of the frame and an external surface of the first adhesive layer are flush with each other.

公开(公告)号：US20210132287A1

公开(公告)日：2021-05-06

申请号：US17148007

申请日：2021-01-13

Applicant: Japan Display Inc.

Inventor： Kazunari NISHITA ,  Ken SUGIYAMA ,  Tetsuro OCHI ,  Toshiyuki TSUBOTA

IPC: F21V8/00 ,  G02F1/1333 ,  G02F1/1335

Abstract: According to one embodiment, an illumination device includes a light source disposed along a first direction, a light guide plate including a first end and a second end, the second end being positioned to be opposite to the first end in a second direction which crosses the first direction, a frame disposed along the second end and including an inner surface and an upper surface, and an adhesion member disposed on at least the upper surface of the frame, wherein the light source is disposed at the first end along the first direction, at least the inner surface of the frame is a light absorbing surface, and the adhesion member is light transmissive.

公开(公告)号：US20170139123A1

公开(公告)日：2017-05-18

申请号：US15354229

申请日：2016-11-17

Applicant: Japan Display Inc.

Inventor： Tetsuro OCHI ,  Ken SUGIYAMA ,  Toshiyuki TSUBOTA ,  Kazunari NISHITA

IPC: F21V8/00 ,  G02F1/1333

CPC classification number: G02F1/133308 ,  G02B6/005 ,  G02B6/0065 ,  G02B6/0078 ,  G02B6/0083 ,  G02B6/0088 ,  G02B6/009 ,  G02F1/1336 ,  G02F2001/133314 ,  G02F2001/133317 ,  G02F2202/28

Abstract: According to one embodiment, a backlight device includes a frame formed of a sheet material, a first adhesive layer provided on one surface of the frame, a reflective sheet attached to the frame with the first adhesive layer, an optical member disposed on the reflective sheet in the frame, and a light source disposed in the frame and configured to emit light to the optical member. In at least a part of the frame, a width of the frame and a width of the first adhesive layer are equal to each other, and at least an external surface of the frame and an external surface of the first adhesive layer are flush with each other.

公开(公告)号：US20240288723A1

公开(公告)日：2024-08-29

申请号：US18658233

申请日：2024-05-08

Applicant: Japan Display Inc.

Inventor： Tetsuro OCHI ,  Ken SUGIYAMA ,  Toshiyuki TSUBOTA ,  Kazunari NISHITA

IPC: G02F1/1333 ,  G02F1/1335 ,  G02F1/13357

CPC classification number: G02F1/133308 ,  G02F1/1335 ,  G02B6/005 ,  G02B6/0065 ,  G02B6/0078 ,  G02B6/0083 ,  G02B6/0088 ,  G02B6/009 ,  G02F1/133314 ,  G02F1/133317 ,  G02F1/1336 ,  G02F2202/28

Abstract: A display device is provided and includes a liquid crystal display panel; and a backlight device opposed to the liquid crystal display panel; the backlight device including a frame-shaped structure with a first surface and a second surface, the second surface facing the liquid crystal display panel and being located between the liquid crystal display panel and the first surface; a reflective sheet adhering to the first surface with a first adhesive layer, and a light-shielding member covering a side surface of the liquid crystal display panel.

公开(公告)号：US20200326467A1

公开(公告)日：2020-10-15

申请号：US16911027

申请日：2020-06-24

Applicant: Japan Display Inc.

Inventor： Kosuke MATSUBARA ,  Ken SUGIYAMA ,  Kazunari NISHITA ,  Koji HIRAMOTO

IPC: F21V8/00 ,  G02F1/1345 ,  H05K1/18 ,  G02F1/1333

Abstract: According to one embodiment, a liquid crystal display device includes a liquid crystal panel and a backlight device. The backlight device includes a case with a bottom plate and a side plate, a light guide on the bottom plate, and a light source device. The light source device includes a wiring substrate and a light-emitting element on the wiring substrate. The wiring substrate includes a mounting portion on which the light-emitting element is mounted, a connection wiring portion on a back surface side of the bottom plate, and a joint portion which joints the mounting portion and the connection wiring portion together. The joint portion extends from an inside to an outside of the case through a gap between the side plate of the case and the liquid crystal panel.

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：US20240019628A1

公开(公告)日：2024-01-18

申请号：US18359033

申请日：2023-07-26

Applicant: Japan Display Inc.

Inventor： Kazunari NISHITA ,  Ken SUGIYAMA ,  Tetsuro OCHI ,  Toshiyuki TSUBOTA

IPC: F21V8/00 ,  G02F1/1333 ,  G02F1/1335

CPC classification number: G02B6/0088 ,  G02F1/133308 ,  G02F1/133512 ,  G02F1/133528 ,  G02F1/133314 ,  G02F2202/28 ,  G02F2203/01

Abstract: According to one embodiment, an illumination device includes a light source disposed along a first direction, a light guide plate including a first end and a second end, the second end being positioned to be opposite to the first end in a second direction which crosses the first direction, a frame disposed along the second end and including an inner surface and an upper surface, and an adhesion member disposed on at least the upper surface of the frame, wherein the light source is disposed at the first end along the first direction, at least the inner surface of the frame is a light absorbing surface, and the adhesion member is light transmissive.

公开(公告)号：US20210397035A1

公开(公告)日：2021-12-23

申请号：US17465962

申请日：2021-09-03

Applicant: Japan Display Inc.

Inventor： Tetsuro OCHI ,  Ken SUGIYAMA ,  Toshiyuki TSUBOTA ,  Kazunari NISHITA

IPC: G02F1/1333 ,  G02F1/13357

Abstract: A backlight device is provided and include frame formed of sheet material including at least four bars; first adhesive layer provided on one surface of the bars; reflective sheet attached to frame with first adhesive layer; second adhesive layer is provided on another surface opposed to the one surface of the bars; optical member including lightguide plate disposed on reflective sheet in frame; and light source disposed in frame and configured to emit light to optical member, wherein thickness of second adhesive layer provided on three successive bars of frame along three sides of lightguide plate is greater than thickness of first adhesive layer provided on four bars of frame.

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.