公开(公告)号：US20220276532A1

公开(公告)日：2022-09-01

申请号：US17610960

申请日：2020-03-23

Applicant: Japan Display Inc.

Inventor： Toshiyuki TSUBOTA ,  Ken SUGIYAMA ,  Rina YAMAMOTO

IPC: G02F1/13357

Abstract: To provide a light source device capable of irradiating a liquid crystal display module with light at uniform luminance and a display device including the light source device. A light source device has a rear vessel a front cover, a light source substrate, a plurality of light-emitting diodes, and a light-diffusing plate. The front cover is located over and overlaps the rear vessel. The light source substrate, the plurality of light-emitting diodes, and the light-diffusing plate are accommodated between the rear vessel and the front cover. The plurality of light-emitting diodes is located over the light source substrate. The light-diffusing plate is located over, overlaps, and is spaced away from the plurality of light-emitting diodes. The rear vessel and the front cover each have a bottom plate and a side plate integrated with the bottom plate. In at least one of the rear vessel and the front cover, a portion of the side plate is bent to form a protruding portion overlapping the bottom plate. The light-diffusing plate is located over and overlaps the protruding portion.

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：US20210080771A1

公开(公告)日：2021-03-18

申请号：US17104884

申请日：2020-11-25

Applicant: Japan Display Inc.

Inventor： Tomoya TEZEN ,  Ken SUGIYAMA ,  Kosuke MATSUBARA ,  Koji HIRAMOTO ,  Takeshi KANEKI

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

Abstract: A display device is provided and includes a display panel comprising a substrate; a case provided on a back side of the substrate, the case having an outer surface; and a flexible wiring board, one end of which is connected to a top surface of the substrate, curved along the outer surface of the case; wherein the flexible wiring board is fixed to a side surface of the substrate and the outer surface of the case with an adhesive.

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：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：US20220268986A1

公开(公告)日：2022-08-25

申请号：US17742653

申请日：2022-05-12

Applicant: Japan Display Inc.

Inventor： Koji HIRAMOTO ,  Masafumi OKADA ,  Hiroshi NAKAMOTO ,  Ken KAGABU ,  Ken SUGIYAMA

IPC: F21V8/00 ,  G02F1/13357

Abstract: Display device is provided and includes display panel; and illumination device provided on rear surface side of display panel, wherein illumination device includes light sources, and light guiding member arranged at rear surface side of display panel, light guiding member has holes which penetrates the light guiding member, light sources are housed in corresponding hole, rear surface of light guiding member has first inclined surface inclined upwardly from light source housed in one of holes, front surface side of light guiding member has second inclined surface inclined upwardly from light source housed in one of the holes, and angle of first inclined surface to center line of one of holes is greater than angle of second inclined surface to center line.

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：US20190163014A1

公开(公告)日：2019-05-30

申请号：US16196428

申请日：2018-11-20

Applicant: Japan Display Inc.

Inventor： Ken SUGIYAMA ,  Kosuke MATSUBARA ,  Takeshi KANEKI

IPC: G02F1/1335 ,  F21V8/00 ,  G02F1/1362

Abstract: According to one embodiment, a backlight device includes a case having a bottom plate, a light guide having an emission surface, a second main surface and an incidence surface and arranged on the bottom surface, and a light source unit including a wiring board and light-emitting elements on the wiring board. Each light-emitting element has a mounting surface, a first side surface opposed to the mounting surface, and a light-emitting surface between the mounting surface and the first side surface. Each light-emitting surface faces the incidence surface, and the first side surfaces are arranged parallel to the second main surface, and the light source unit is fixed to the light guide with a fixing tape attached over each first side surface and the second main surface.

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.

公开(公告)号：US20180031918A1

公开(公告)日：2018-02-01

申请号：US15662878

申请日：2017-07-28

Applicant: Japan Display Inc.

Inventor： Ken SUGIYAMA ,  Koji HIRAMOTO

IPC: G02F1/1335 ,  F21V8/00

CPC classification number: G02F1/133602 ,  G02B6/0051 ,  G02B6/0053 ,  G02B6/0055 ,  G02B6/0083 ,  G02B6/0088 ,  G02B6/009 ,  G02F1/133615

Abstract: According to one embodiment, a backlight device includes a light guide including a first main surface which forms a light-emitting surface, a second main surface and an incidence surface crossing the first and second main surfaces, a light source unit, and an optical sheet on the first main surface of the light guide. The optical sheet includes a light source-side end portion extending over the incidence surface of the light guide to a position opposing the light source unit.