公开(公告)号：US20230280614A1

公开(公告)日：2023-09-07

申请号：US18197346

申请日：2023-05-15

Applicant: Japan Display Inc.

Inventor： Ken SUGIYAMA ,  Kosuke MATSUBARA ,  Takeshi KANEKI

IPC: G02F1/13357 ,  G02F1/1335 ,  F21V8/00 ,  G02F1/1362

CPC classification number: G02F1/133602 ,  G02F1/133512 ,  G02B6/0091 ,  G02F1/136286 ,  G02B6/0095

Abstract: A backlight device is provided and includes case having bottom plate; light guide having front surface as emission surface, rear surface opposed to front surface, and incidence surface that is one of side surfaces of light guide, rear surface facing to bottom plate; light-emitting elements facing incident surface of light guide, each of light-emitting elements having bottom surface and light-emitting surface facing incidence surface of light guide; fixing tape arranged on bottom plate, each of bottom surfaces of light-emitting elements and rear surface of light guide being adhered to fixing tape; and light-shield facing fixing tape through light guide.

公开(公告)号：US20230124789A1

公开(公告)日：2023-04-20

申请号：US18085335

申请日：2022-12-20

Applicant: Japan Display Inc.

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

IPC: G02F1/1333 ,  G02F1/13357

Abstract: A display device is provided and includes a liquid crystal display panel; and a backlight device opposed to the liquid crystal display panel via a polarizing plate; the backlight device including a frame comprising at least four bars; a first adhesive layer provided on one surface of the bars; a reflective sheet; a lightguide disposed on the reflective sheet in the frame; and a light source disposed in the frame and configured to emit light to the lightguide, wherein the frame includes a portion that is exposed from the liquid crystal display panel in a plan view, and a resin adhesive layer having a light-shielding property covers an external surface of the liquid crystal display panel and the portion of the frame.

公开(公告)号：US20210349342A1

公开(公告)日：2021-11-11

申请号：US17382021

申请日：2021-07-21

Applicant: Japan Display Inc.

Inventor： Ken SUGIYAMA ,  Toshiyuki TSUBOTA ,  Rina YAMAMOTO

IPC: G02F1/1333 ,  F21V8/00

Abstract: According to one embodiment, a display device includes a liquid crystal panel, a case covering a rear surface side of the liquid crystal panel, a backlight device disposed in the case and opposed to the liquid crystal panel with a gap, a first holding member provided on a side plate of the case, and a second holding member including a fixation part attached to the side plate of the case, and a second holding part interposed between an optical sheet and a rear surface of the liquid crystal panel to cover a light source device and an end part of the optical sheet on the light source device side.

公开(公告)号：US20200183220A1

公开(公告)日：2020-06-11

申请号：US16793122

申请日：2020-02-18

Applicant: Japan Display Inc.

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

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

Abstract: A backlight device is provided and 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, wherein 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 internal surface of the frame and an internal surface of the first adhesive layer are flush with each other.

公开(公告)号：US20180306968A1

公开(公告)日：2018-10-25

申请号：US15961034

申请日：2018-04-24

Applicant: Japan Display Inc.

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

IPC: F21V8/00 ,  G02F1/1345 ,  H05K1/14 ,  H05K1/18

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：US20180011241A1

公开(公告)日：2018-01-11

申请号：US15643770

申请日：2017-07-07

Applicant: Japan Display Inc.

Inventor： Ken SUGIYAMA

IPC: F21V8/00

CPC classification number: G02B6/0083 ,  G02B6/0068 ,  G02B6/0073 ,  G02B6/0085 ,  G02B6/0088

Abstract: According to one embodiment, a backlight device includes a case with a bottom having an opening, a light guide LG on the bottom and having an emission surface and an incidence surface, and a light source unit in the case, configured to apply light into the incidence surface. The light source unit includes a wiring board including wiring lines and light emitting devices each having a light-emitting surface opposing the incidence surface. The wiring board includes a mounting portion opposing the incidence surface while interposing the light-emitting devices therebetween, on which the light-emitting devices are mounted, and a lead-out portion extending from the mounting portion and led out to a rear surface side of the bottom through the opening.

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：US20220011498A1

公开(公告)日：2022-01-13

申请号：US17487102

申请日：2021-09-28

Applicant: Japan Display Inc.

Inventor： Rina YAMAMOTO ,  Ken SUGIYAMA

IPC: F21V8/00 ,  F21V3/00 ,  F21V17/10 ,  F21V11/08

Abstract: The light source device includes a rear vessel, a light source substrate, a plurality of light-emitting diodes, a front cover, and a light diffuser. The rear vessel has a bottom plate and a first lower side plate connected to the bottom plate. The light source substrate is accommodated in the rear vessel. The plurality of light-emitting diodes is located over the light source substrate. The front cover has an upper plate and a first upper side plate connected to the upper plate, is located over the rear vessel, and accommodates the rear vessel. The light diffuser is accommodated in the front cover, is located over the plurality of light-emitting diodes, and is spaced away from the plurality of light-emitting diodes. The first lower side plate and the first upper side plate each have a notch.

公开(公告)号：US20210333613A1

公开(公告)日：2021-10-28

申请号：US17370186

申请日：2021-07-08

Applicant: Japan Display Inc.

Inventor： Koji HIRAMOTO ,  Norika IKEDA ,  Ken SUGIYAMA

IPC: G02F1/1333 ,  G02F1/133 ,  H04N5/225

Abstract: According to an embodiment, a display device comprises a frame defining an opening, a grip extending from the frame, and a display panel which is held by the frame and whose background is visually recognizable. Further, the opening includes a region surrounded by an inner edge of the frame and the display panel.

公开(公告)号：US20210116732A1

公开(公告)日：2021-04-22

申请号：US17135454

申请日：2020-12-28

Applicant: Japan Display Inc.

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

IPC: G02F1/1345 ,  H05K1/02

Abstract: A display device is provided and includes display panel; case provided at back surface of display panel; and flexible wiring board including first end connected to display panel and curved along outer surface of case, flexible wiring board comprising sheet-shaped substrate having first surface that is flat and second surface opposite to first surface, conductive layer formed on first surface of substrate and constituting wires, and protective layer overlaid on conductive layer and substrate, and substrate comprising first portion including first end joined to display panel, second portion including second end opposite to first end, and third portion provided between first portion and second portion, thickness of part of third portion is smaller than thickness of first portion and thickness of second portion, flexible wiring board is curved at third portion.