公开(公告)号：US10578917B2

公开(公告)日：2020-03-03

申请号：US16240281

申请日：2019-01-04

Applicant: Japan Display Inc.

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

IPC: G09F13/08 ,  G02F1/1335 ,  G02F1/1333

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：US11768325B2

公开(公告)日：2023-09-26

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

CPC classification number: G02B6/0045 ,  G02B6/0021 ,  G02B6/0066 ,  G02B6/0073 ,  G02F1/133603

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：US11333818B2

公开(公告)日：2022-05-17

申请号：US17357145

申请日：2021-06-24

Applicant: Japan Display Inc.

Inventor： Koji Hiramoto ,  Masafumi Okada ,  Hiroshi Nakamoto ,  Ken Kagabu ,  Ken Sugiyama

IPC: F21V8/00 ,  G02F1/13357

Abstract: According to an aspect, a display device includes: a display panel configured to transmit light; and an illumination device provided on a rear surface side of the display panel. The illumination device includes a plurality of light sources configured to emit light, and a light guiding member that has translucency and is arranged between the light sources on the rear surface side of the display panel. The light guiding member has a plurality of holes each of which opens in a first direction intersecting with a rear surface of the display panel and in each of which a corresponding one of the light sources is disposed, and a light guiding portion surrounding the holes. A rear surface of the light guiding portion is provided with a first inclined surface inclined with respect to the first direction and a plane orthogonal to the first direction.

公开(公告)号：US20180224595A1

公开(公告)日：2018-08-09

申请号：US15889048

申请日：2018-02-05

Applicant: Japan Display Inc.

Inventor： Ken Sugiyama ,  Koji Hiramoto ,  Kazunari Nishita

IPC: F21V8/00

Abstract: According to one embodiment, a backlight device includes a case including a bottom plate formed from a metal plate, a plurality of side plates formed of metal plates along side edges of the bottom plate and a plurality of resin members each embedded into a gap between each adjacent pair of the side plates to form a corner portion, a light guide in the case, an optical sheet on the light guide, and a light source unit in the case, configured to emit light to enter the light guide.

公开(公告)号：US09690130B2

公开(公告)日：2017-06-27

申请号：US14697781

申请日：2015-04-28

Applicant: Japan Display Inc.

Inventor： Koji Hiramoto ,  Toshimitsu Yoshifuku ,  Yoshihisa Watanabe

IPC: G02F1/1339 ,  G02F1/1333

CPC classification number: G02F1/13338 ,  G02F1/1339 ,  G02F2202/28

Abstract: According to one embodiment, provided is a display device with an improved manufacturability which is capable of preventing a decrease in the display quality due to a change in the gap between an array substrate and a counter substrate caused by a temperature change. The primary bonding portion is composed of translucent synthetic resin and provided to bond together the counter substrate side and a touch panel side in a manner covering at least a display area. The secondary bonding portion is provided in a columnar shape through curing of adhesive being ultraviolet curable liquid resin with a viscosity higher than that of the synthetic resin of the primary bonding portion, the secondary bonding portion bonding together the non-opposed portion side and the touch panel side.

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：US10897815B2

公开(公告)日：2021-01-19

申请号：US16935279

申请日：2020-07-22

Applicant: Japan Display Inc.

Inventor： Kota Uogishi ,  Koji Hiramoto ,  Kengo Kowata

IPC: H05K1/00 ,  H05K1/02 ,  H05K1/03 ,  H05K3/28 ,  H05K3/12

Abstract: According to one embodiment, a display device includes a display panel including pad portions, a flexible printed circuit, the flexible printed circuit includes a base member with a first surface and a second surface, wiring lines, and a protective layer, and including a bend area, and a first edge and a second edge, the base member includes a groove portion located in the bend area and formed in the second surface, a first frame region between the first edge and the groove portion, and a second frame region between the second edge and the groove portion, a thickness of the base member in a position where the groove portion is formed is less than a thickness of the base member in a position which overlaps the first frame region and the second frame region.

公开(公告)号：US11567354B2

公开(公告)日：2023-01-31

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 ,  G02F1/13357

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：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：US10772196B2

公开(公告)日：2020-09-08

申请号：US16555561

申请日：2019-08-29

Applicant: Japan Display Inc.

Inventor： Kota Uogishi ,  Koji Hiramoto ,  Kengo Kowata

IPC: H05K1/00 ,  H05K1/02 ,  H05K3/12 ,  H05K3/28 ,  H05K1/03

Abstract: According to one embodiment, a display device includes a display panel including pad portions, a flexible printed circuit, the flexible printed circuit includes a base member with a first surface and a second surface, wiring lines, and a protective layer, and including a bend area, and a first edge and a second edge, the base member includes a groove portion located in the bend area and formed in the second surface, a first frame region between the first edge and the groove portion, and a second frame region between the second edge and the groove portion, a thickness of the base member in a position where the groove portion is formed is less than a thickness of the base member in a position which overlaps the first frame region and the second frame region.