公开(公告)号：US20240288723A1

公开(公告)日：2024-08-29

申请号：US18658233

申请日：2024-05-08

Applicant: Japan Display Inc.

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

IPC: G02F1/1333 ,  G02F1/1335 ,  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; the backlight device including a frame-shaped structure with a first surface and a second surface, the second surface facing the liquid crystal display panel and being located between the liquid crystal display panel and the first surface; a reflective sheet adhering to the first surface with a first adhesive layer, and a light-shielding member covering a side surface of the liquid crystal display panel.

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：US20180321543A1

公开(公告)日：2018-11-08

申请号：US16020399

申请日：2018-06-27

Applicant: Japan Display Inc.

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

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

CPC classification number: G02F1/133308 ,  G02B6/005 ,  G02B6/0065 ,  G02B6/0078 ,  G02B6/0083 ,  G02B6/0088 ,  G02B6/009 ,  G02F1/1336 ,  G02F2001/133314 ,  G02F2001/133317 ,  G02F2202/28

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：US20240019628A1

公开(公告)日：2024-01-18

申请号：US18359033

申请日：2023-07-26

Applicant: Japan Display Inc.

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

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

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：US20210397035A1

公开(公告)日：2021-12-23

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

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：US20220276532A1

公开(公告)日：2022-09-01

申请号：US17610960

申请日：2020-03-23

Applicant: Japan Display Inc.

Inventor： Toshiyuki TSUBOTA ,  Ken SUGIYAMA ,  Rina YAMAMOTO

IPC: G02F1/13357

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：US20210132287A1

公开(公告)日：2021-05-06

申请号：US17148007

申请日：2021-01-13

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：US20170139123A1

公开(公告)日：2017-05-18

申请号：US15354229

申请日：2016-11-17

Applicant: Japan Display Inc.

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

IPC: F21V8/00 ,  G02F1/1333

CPC classification number: G02F1/133308 ,  G02B6/005 ,  G02B6/0065 ,  G02B6/0078 ,  G02B6/0083 ,  G02B6/0088 ,  G02B6/009 ,  G02F1/1336 ,  G02F2001/133314 ,  G02F2001/133317 ,  G02F2202/28

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：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.