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：US11346997B2

公开(公告)日：2022-05-31

申请号：US17148007

申请日：2021-01-13

Applicant: Japan Display Inc.

Inventor： Kazunari Nishita ,  Ken Sugiyama ,  Tetsuro Ochi ,  Toshiyuki Tsubota

IPC: G02F1/1335 ,  F21V8/00 ,  G02F1/1333

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：US11036084B2

公开(公告)日：2021-06-15

申请号：US16934253

申请日：2020-07-21

Applicant: Japan Display Inc.

Inventor： Taketoshi Masamoto ,  Tetsuro Ochi

IPC: G02F1/13357 ,  F21V8/00 ,  G02F1/133 ,  G02F1/1335 ,  G02F1/1333

Abstract: According to one embodiment, a backlight device includes a light guide including an emission surface including a flat area and an inclined area inclined in an out-of-plane direction from an edge of the flat area, a light source emitting light into the light guide, and an optical diffusion sheet on the emission surface. The optical diffusion sheet includes a diffusion flat area overlapping the flat area of the emission surface and a diffusion inclined area overlapping the inclined area of the emission surface, and a haze of the diffusion inclined area is higher than that of the diffusion flat area.

公开(公告)号：US10921509B2

公开(公告)日：2021-02-16

申请号：US16783365

申请日：2020-02-06

Applicant: Japan Display Inc.

Inventor： Kazunari Nishita ,  Ken Sugiyama ,  Tetsuro Ochi ,  Toshiyuki Tsubota

IPC: G02F1/1335 ,  F21V8/00 ,  G02F1/1333

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：US10901251B2

公开(公告)日：2021-01-26

申请号：US16020399

申请日：2018-06-27

Applicant: Japan Display Inc.

Inventor： Tetsuro Ochi ,  Ken Sugiyama ,  Toshiyuki Tsubota ,  Kazunari Nishita

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

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：US10025128B2

公开(公告)日：2018-07-17

申请号：US15354229

申请日：2016-11-17

Applicant: Japan Display Inc.

Inventor： Tetsuro Ochi ,  Ken Sugiyama ,  Toshiyuki Tsubota ,  Kazunari Nishita

IPC: G02F1/1333 ,  F21V8/00

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：US20170315291A1

公开(公告)日：2017-11-02

申请号：US15494807

申请日：2017-04-24

Applicant: Japan Display Inc.

Inventor： Kazunari Nishita ,  Ken Sugiyama ,  Tetsuro Ochi ,  Toshiyuki Tsubota

IPC: F21V8/00 ,  G02F1/1335

CPC classification number: G02B6/0088 ,  G02F1/133308 ,  G02F1/133512 ,  G02F1/133528 ,  G02F2001/133314 ,  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：US11747549B2

公开(公告)日：2023-09-05

申请号：US17730260

申请日：2022-04-27

Applicant: Japan Display Inc.

Inventor： Kazunari Nishita ,  Ken Sugiyama ,  Tetsuro Ochi ,  Toshiyuki Tsubota

IPC: G02F1/1335 ,  F21V8/00 ,  G02F1/1333

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：US11536998B2

公开(公告)日：2022-12-27

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 ,  F21V8/00

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：USD951252S1

公开(公告)日：2022-05-10

申请号：US29714818

申请日：2019-11-26

Applicant: Japan Display Inc.

Designer： Tetsuro Ochi ,  Taro Ichimura