公开(公告)号：US11460738B2

公开(公告)日：2022-10-04

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 ,  H05K1/18 ,  G02F1/1333 ,  F21V8/00 ,  H05K1/02 ,  H05K1/03 ,  G02F1/00

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：US10948768B2

公开(公告)日：2021-03-16

申请号：US16196428

申请日：2018-11-20

Applicant: Japan Display Inc.

Inventor： Ken Sugiyama ,  Kosuke Matsubara ,  Takeshi Kaneki

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

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：US10732347B2

公开(公告)日：2020-08-04

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 ,  H05K1/18 ,  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：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：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：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：US11428998B2

公开(公告)日：2022-08-30

申请号：US17135454

申请日：2020-12-28

Applicant: Japan Display Inc.

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

IPC: H05K1/00 ,  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.

公开(公告)号：US10416487B2

公开(公告)日：2019-09-17

申请号：US16034486

申请日：2018-07-13

Applicant: Japan Display Inc.

Inventor： Taketoshi Masamoto ,  Kosuke Matsubara

IPC: F21V7/04 ,  G02F1/1333 ,  F21V8/00

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.