公开(公告)号：US11209695B2

公开(公告)日：2021-12-28

申请号：US17200224

申请日：2021-03-12

Applicant: Japan Display Inc.

Inventor： Ken Sugiyama ,  Kosuke Matsubara ,  Takeshi Kaneki

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

Abstract: A backlight device is provided and includes case having bottom plate; light guide including front surface as emission surface, rear surface opposed to front surface, and incidence surface provided between front surface and rear surface; and light-emitting elements facing incident surface of light guide, wherein light-emitting elements include first surface provided at bottom of light-emitting elements, and light-emitting surface facing incidence surface of light guide, first surfaces and rear surface are arranged side by side, and fixed to fixing tape attached over first surfaces and rear surface of light guide, and light-shielding tape facing fixing tape through light guide and light-emitting elements.

公开(公告)号：US11054570B2

公开(公告)日：2021-07-06

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 ,  H05K1/14

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：US10852595B2

公开(公告)日：2020-12-01

申请号：US16249568

申请日：2019-01-16

Applicant: Japan Display Inc.

Inventor： Tomoya Tezen ,  Ken Sugiyama ,  Kosuke Matsubara ,  Koji Hiramoto ,  Takeshi Kaneki

IPC: G02F1/1345 ,  G02F1/1333 ,  H05K1/18 ,  F21V8/00 ,  H05K1/02 ,  H05K1/03 ,  G02F1/00

Abstract: According to one embodiment, a display device includes a display panel, a case including a bottom plate opposing a rear surface of the display panel and a side plate stand on the bottom plate and attached to the display panel, a flexible wiring board, one end of which is joined to the display panel, curved around the side plate toward the bottom plate to oppose the bottom plate while, and an adhesive filled between the flexible wiring board and the side plate of the case or between the flexible wiring board and both of the side plate and the bottom plate, to adhere the flexible wiring board onto an outer surface of the case and hold the flexible wiring board in a curved state.

公开(公告)号：US20200174179A1

公开(公告)日：2020-06-04

申请号：US16783365

申请日：2020-02-06

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：US10222649B2

公开(公告)日：2019-03-05

申请号：US15823876

申请日：2017-11-28

Applicant: Japan Display Inc.

Inventor： Ken Sugiyama ,  Koji Hiramoto ,  Taketoshi Masamoto ,  Kazunari Nishita

IPC: G09F13/04 ,  G02F1/1335

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：US12019322B2

公开(公告)日：2024-06-25

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 ,  G02F1/1335 ,  F21V8/00 ,  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 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：US11874553B2

公开(公告)日：2024-01-16

申请号：US18197346

申请日：2023-05-15

Applicant: Japan Display Inc.

Inventor： Ken Sugiyama ,  Kosuke Matsubara ,  Takeshi Kaneki

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

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

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：US11815764B2

公开(公告)日：2023-11-14

申请号：US17610960

申请日：2020-03-23

Applicant: Japan Display Inc.

Inventor： Toshiyuki Tsubota ,  Ken Sugiyama ,  Rina Yamamoto

IPC: G02F1/00 ,  G02F1/13357

CPC classification number: G02F1/133608 ,  G02F1/133603 ,  G02F1/133606

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：US11686972B2

公开(公告)日：2023-06-27

申请号：US17545560

申请日：2021-12-08

Applicant: Japan Display Inc.

Inventor： Ken Sugiyama ,  Kosuke Matsubara ,  Takeshi Kaneki

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

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

Abstract: A backlight device is provided and includes case having bottom plate; light guide including front surface as emission surface, rear surface opposed to front surface, and incidence surface provided between front and rear surfaces, rear surface being arranged on bottom plate; and light-emitting elements facing incident surface of light guide, wherein light-emitting elements includes first surface provided at bottom of light-emitting elements, and light-emitting surface facing incidence surface of light guide, first surfaces and rear surface are arranged side by side, and fixed to fixing tape attached over first surfaces and rear surface of light guide, and light-shield is facing fixing tape through light guide.

公开(公告)号：US11644613B2

公开(公告)日：2023-05-09

申请号：US17487102

申请日：2021-09-28

Applicant: Japan Display Inc.

Inventor： Rina Yamamoto ,  Ken Sugiyama

IPC: F21V8/00 ,  F21V11/08 ,  F21V17/10 ,  F21Y115/10 ,  F21V3/00

CPC classification number: G02B6/0086 ,  F21V3/00 ,  F21V11/08 ,  F21V17/101 ,  G02B6/0053 ,  G02B6/0055 ,  F21Y2115/10

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.