公开(公告)号：US20230360594A1

公开(公告)日：2023-11-09

申请号：US18353888

申请日：2023-07-18

Applicant: Japan Display Inc.

Inventor： Masanobu IKEDA ,  Yoshinori AOKI

IPC: G09G3/32 ,  G09G3/20

CPC classification number: G09G3/32 ,  G09G3/204 ,  G09G3/2074 ,  G09G3/2077 ,  G09G2300/0452 ,  G09G2360/144 ,  G09G2300/0443 ,  G09G2360/16

Abstract: A display device includes a display area including a plurality of pixels, and a gradation control circuit configured to control a gradation of the pixel based on a gradation control mode. Each of the plurality of pixels includes first and second LED chips. One frame period of the gradation control mode includes a first to third subframe periods. In the first subframe period, the gradation of the pixel is controlled by a light emitting area of each of the first and second LED chips. In the second subframe period, the gradation of the pixel is controlled by a light emission time of each of the first and second LED chips. In the third subframe period, the gradation of the pixel is controlled by a current value supplied to each of the first and second LED chips.

公开(公告)号：US20230347638A1

公开(公告)日：2023-11-02

申请号：US18218947

申请日：2023-07-06

Applicant: Japan Display Inc.

Inventor： Takayuki KATO ,  Shinichiro TANAKA ,  Makoto ISHIKAWA

IPC: B32B3/16 ,  B32B37/10 ,  B32B37/00 ,  B32B1/00

CPC classification number: B32B37/1018 ,  B32B1/00 ,  B32B3/16 ,  B32B37/0046 ,  B32B2457/20

Abstract: According to an aspect, a pressure bonding device is configured to bond, to a plate-like first workpiece having a curved surface part, a plurality of plate-like second workpieces smaller than the first workpiece. The pressure bonding device includes: a vacuum chamber; a stage disposed in the vacuum chamber and having a shape extending along a first surface of the curved surface part of the first workpiece so as to fix the first surface on the stage; and a bonding unit configured to deform an elastic diaphragm by internal pressure and pressure-bond one of the second workpieces to a second surface of the first workpiece. A plurality of the bonding units are disposed facing the stage.

公开(公告)号：US11803284B2

公开(公告)日：2023-10-31

申请号：US17752027

申请日：2022-05-24

Applicant: Japan Display Inc.

Inventor： Koichiro Adachi

IPC: G06F3/044 ,  G02F1/1343 ,  G02F1/1333 ,  G02F1/1335

CPC classification number: G06F3/0448 ,  G02F1/13338 ,  G02F1/13439 ,  G02F1/133514 ,  G02F1/134345 ,  G06F3/0446

Abstract: A detecting device comprising: a plurality of detection electrodes extending in a first direction along a substrate and disposed apart from each other in a second direction orthogonal to the first direction; and a plurality of dummy electrodes provided between the detection electrodes, wherein the detection electrodes have a plurality of openings, the openings of the detection electrodes are arrayed in a triangular grid, the dummy electrodes are arrayed in a triangular grid, an end of each of the detection electrodes in the second direction has: a plurality of recesses; and a plurality of protrusions.

公开(公告)号：US11803282B2

公开(公告)日：2023-10-31

申请号：US17852575

申请日：2022-06-29

Applicant: Japan Display Inc.

Inventor： Koji Ishizaki ,  Hayato Kurasawa ,  Hiroshi Mizuhashi

IPC: G06F3/044

CPC classification number: G06F3/0446 ,  G06F3/044 ,  G06F2203/04103

Abstract: An input device is provided and includes substrate; first metal mesh shape electrodes provided on layer of substrate; second metal mesh shape electrodes provided on same layer of the substrate as first metal mesh shape electrodes; second metal connection electrodes each of which connects adjacent two of second metal mesh shape electrodes on same layer as first metal mesh shape electrodes; insulating film covering second metal connection electrodes; first transparent connection electrodes each of which connects adjacent two of first metal mesh shape electrodes on insulating film; and protective film covering first metal mesh shape electrodes, second metal mesh shape electrodes, and first transparent connection electrodes.

公开(公告)号：US20230345802A1

公开(公告)日：2023-10-26

申请号：US18303652

申请日：2023-04-20

Applicant: Japan Display Inc.

Inventor： Takahiro USHIKUBO

IPC: H10K59/80 ,  H10K59/122 ,  H10K59/12

CPC classification number: H10K59/873 ,  H10K59/122 ,  H10K59/1201

Abstract: Provided is an organic EL display device and a method for manufacturing the same having the characteristics that are less deteriorated even if some layers are exposed to a solvent or the atmosphere when performing photolithography. An organic electroluminescence display device includes a plurality of pixel each including a plurality of sub-pixels, a substrate, a lower electrode, an organic EL layer including an emission layer that emits a different color for each sub-pixel, and an upper electrode disposed on an upper side of the organic EL layer. An exposure protective layer is disposed between the organic EL layer and the upper electrode, where the exposure protective layer includes a protective charge generation layer and a first protective hole transport layer that are laminated in this order for each sub-pixel, and the emission layer is not provided between the exposure protective layer and the upper electrode.

公开(公告)号：US20230345769A1

公开(公告)日：2023-10-26

申请号：US18299078

申请日：2023-04-12

Applicant: Japan Display Inc.

Inventor： Arichika ISHIDA

IPC: H10K59/122 ,  H10K59/80 ,  H10K59/12

CPC classification number: H10K59/122 ,  H10K59/80515 ,  H10K59/1201

Abstract: According to one embodiment, a display device includes a lower electrode, a rib covering a part of the lower electrode and includes a pixel aperture overlapping the lower electrode, an upper electrode facing the lower electrode, and an organic layer between the lower and upper electrodes. The lower electrode includes a metal layer including a first peripheral portion covered with the rib, and a first central portion exposed from the rib through the pixel aperture, and a conductive oxide layer including a second peripheral portion located on the rib, and a second central portion which is in contact with the first central portion through the pixel aperture.

公开(公告)号：US20230345747A1

公开(公告)日：2023-10-26

申请号：US18300537

申请日：2023-04-14

Applicant: Japan Display Inc.

Inventor： Takumi SANO

IPC: H10K39/38

CPC classification number: H10K39/38 ,  H10K39/401

Abstract: According to one embodiment, a flexible substrate including an insulating base including a plurality of first strip portions, a plurality of second strip portions, and a plurality of island-shaped portions located at the intersections of the first strip portions and the second strip portions, a plurality of electric elements each including a lower electrode, an upper electrode, and an active layer located between the lower electrode and the upper electrode, and overlapping with the island-shaped portions, and a first stress relaxation layer located between the lower electrode and the active layer, wherein the first stress relaxation layer is formed of a conductive resin material.

公开(公告)号：US11800658B2

公开(公告)日：2023-10-24

申请号：US17462533

申请日：2021-08-31

Applicant: Japan Display Inc.

Inventor： Masumi Nishimura

IPC: H05K5/02 ,  H05K5/00 ,  B32B3/18 ,  B32B3/04 ,  B32B7/022

CPC classification number: H05K5/0217 ,  B32B3/04 ,  B32B3/18 ,  B32B7/022 ,  B32B2307/51 ,  B32B2457/20

Abstract: A display device according to an embodiment includes a bendable housing, a flexible display module, a flexible external frame, and an internal frame. The display module includes a first surface facing the housing, a second surface opposite to the first surface, and a side surface connecting the first and second surfaces. The external frame has a base end portion connected to the housing and an edge portion integrally formed with the base end portion and facing the second surface, and covers the display module. The internal frame is arranged between the base end portion and the side surface, and has a Young's modulus larger than that of the external frame.

公开(公告)号：US11798315B2

公开(公告)日：2023-10-24

申请号：US17664713

申请日：2022-05-24

Applicant: Japan Display Inc.

Inventor： Yasuhiro Takahashi

IPC: G06V40/13 ,  G02B3/00

CPC classification number: G06V40/1324 ,  G02B3/0056

Abstract: According to one embodiment, an electronic device comprises a plurality of microlenses arranged in a hexagonal periodic structure, and provided in the plurality of sensor regions, and a plurality of spacers between the plurality of sensor regions, wherein the plurality of sensor regions include a first sensor region adjacent to the plurality of spacers, a second sensor region adjacent to the first sensor region in the first direction, and a third sensor region adjacent to the first sensor region in the second direction, and include at least one microlens overlapped with the first sensor region and the second sensor region, and at least one microlens overlapped with the first sensor region and the third sensor region.

公开(公告)号：US11796855B2

公开(公告)日：2023-10-24

申请号：US18109341

申请日：2023-02-14

Applicant: Japan Display Inc.

Inventor： Makoto Miyao

IPC: G02F1/1335 ,  G02F1/13357

CPC classification number: G02F1/133524 ,  G02F1/133603 ,  G02F1/133605

Abstract: A display panel includes a light guide plate fixed on a rear surface of a substrate via an adhesive layer, and a light guide plate fixed on a front surface of a substrate via an adhesive layer, a light source unit having light emitting diode elements, arranged on the rear surface of the substrate, and arranged at a position facing a side surface of the light guide plate, and a light source unit having a plurality of light emitting diode elements, arranged on the front surface of the substrate, and arranged at a position facing a side surface of the light guide plate. Refractive index of one of the adhesive layer and the adhesive layer is lower than refractive index of the other. The side surface of the light guide plate and the side surface of the light guide plate are on the same side in a first direction.