公开(公告)号：US20230236078A1

公开(公告)日：2023-07-27

申请号：US18099025

申请日：2023-01-19

Applicant: Japan Display Inc.

Inventor： Hiroumi KINJO

IPC: G01L1/22

CPC classification number: G01L1/2293

Abstract: A force sensor includes an array substrate having a first surface provided with a plurality of array electrodes, a counter substrate having an opposite surface facing the first surface, a guard electrode disposed on the first surface and extending between the array electrodes, a sensor layer made of a conductive elastomer and placed over the first surface, the array electrodes, and the guard electrode, and a common electrode provided on the opposite surface. The array substrate and the guard electrode are equipotential.

公开(公告)号：US20230152177A1

公开(公告)日：2023-05-18

申请号：US17973841

申请日：2022-10-26

Applicant: Japan Display Inc.

Inventor： Hiroumi KINJO ,  Masumi NISHIMURA

IPC: G01L19/14

CPC classification number: G01L19/146 ,  G01L19/147 ,  G01L19/148

Abstract: According to one embodiment, a pressure detection device includes a buffer layer formed of an elastic material and including a press surface including a biaxially curved surface and an installation surface including a uniaxially curved surface opposing the press surface with an interval therebetween, and a sheet-shape pressure sensor provided in tight contact with the installation surface and uniaxially curved along the installation surface.

公开(公告)号：US20230010053A1

公开(公告)日：2023-01-12

申请号：US17804189

申请日：2022-05-26

Applicant: Japan Display Inc.

Inventor： Masumi NISHIMURA ,  Hayata AOKI ,  Hiroumi KINJO

IPC: H01L27/32

Abstract: In an embodiment, a display device comprises a substrate, display elements, a partition wall, a metal layer, and an inorganic layer. Each of the display elements comprises first and second electrode and an organic layer. The partition wall is between the display elements. The metal layer is along the partition wall. The inorganic layer covers the display elements, the partition wall, and the metal layer. The partition wall includes a first portion, and a second portion which is smaller in width than the first portion. The metal layer covers a first area on a side surface of the second portion. The inorganic layer covers a second area on the side surface. The second area is between the first area and the first portion.

公开(公告)号：US20220367834A1

公开(公告)日：2022-11-17

申请号：US17661417

申请日：2022-04-29

Applicant: Japan Display Inc.

Inventor： Hiroumi KINJO ,  Hayata AOKI ,  Masumi NISHIMURA

IPC: H01L51/52 ,  H01L27/32

Abstract: According to one embodiment, a display device comprises a base, display elements, a partition wall, first to third inorganic layers and a resin layer. The display element includes first and second electrodes and a light-emitting layer between the electrodes. The partition wall is located between adjacent pair of the display elements. The first inorganic layer covers the display elements and the partition wall. The second inorganic layer covers the first inorganic layer. The resin layer covers the second inorganic layer. The third inorganic layer covers the resin layer.

公开(公告)号：US20220196489A1

公开(公告)日：2022-06-23

申请号：US17690301

申请日：2022-03-09

Applicant: Japan Display Inc.

Inventor： Hiroumi KINJO

IPC: G01L1/16 ,  H01L41/047 ,  H01L41/08 ,  H01L41/113 ,  H01L41/193 ,  H01L41/29 ,  H01L41/319 ,  H01L41/45

Abstract: A piezoelectric sensor, comprising: a stress applying layer in which a plurality of stress applying grooves extending in parallel with a first direction are formed in a predetermined region on a whole surface; and a piezoelectric layer that is layered on the stress applying layer and formed from a polymer piezoelectric material containing an optical active polymer.

公开(公告)号：US20220157905A1

公开(公告)日：2022-05-19

申请号：US17451676

申请日：2021-10-21

Applicant: Japan Display Inc.

Inventor： Hiroumi KINJO

IPC: H01L27/32

Abstract: According to one embodiment, a display device includes a base, a first insulating layer disposed on the base, a first electrode disposed on the first insulating layer, a second insulating layer disposed on the first insulating layer and including an opening overlapping the first electrode, a first trench not overlapping the first electrode, and a first surface between the opening and the first trench, an organic layer including a light-emitting layer, and a second electrode covering the organic layer. The organic layer includes a first portion disposed in the opening and covering the first electrode, a second portion disposed on the first surface, and a third portion disposed in the first trench and separated from the second portion.

公开(公告)号：US20210190607A1

公开(公告)日：2021-06-24

申请号：US17124835

申请日：2020-12-17

Applicant: Japan Display Inc.

Inventor： Hiroumi KINJO

IPC: G01L1/20 ,  H01L29/84 ,  G01L1/22

Abstract: According to one embodiment, a pressing force sensor IPD includes a sensor area SA, individual electrodes PE arranged in a matrix in a first direction X and a second direction Y crossing the first direction X in the sensor area SA, a common electrode CE opposed to the individual electrodes PE, first spacers SPC arranged between the individual electrodes PE and the common electrode CE and overlapping the individual electrodes PE, and second spacers ADS disposed in the sensor area SA and formed of a different material from the first spacers SPC.

公开(公告)号：US20250027824A1

公开(公告)日：2025-01-23

申请号：US18904358

申请日：2024-10-02

Applicant: Japan Display Inc.

Inventor： Hiroumi KINJO

IPC: G01L1/20 ,  G01L1/14 ,  G01L1/16

Abstract: According to an aspect, a force sensor includes: a sensor sheet having a first surface and a second surface on an opposite side to the first surface; a substrate facing the first surface; a first adhesive layer interposed between the substrate and the sensor sheet and made of an anisotropic conductive material; and a plurality of array electrodes interposed between the substrate and the first adhesive layer and separated from each other. The first surface of the sensor sheet is bonded to the first adhesive layer. The first adhesive layer has conductivity in a thickness direction and has insulation properties in a planar direction along a plane.

公开(公告)号：US20240397827A1

公开(公告)日：2024-11-28

申请号：US18795498

申请日：2024-08-06

Applicant: Japan Display Inc.

Inventor： Hiroumi KINJO

IPC: H10N30/87 ,  G06F3/043

Abstract: A detecting device includes a plurality of ultrasonic transducers that transmit and receive ultrasonic waves. The detecting device includes a laminate, and a frame layer stacked on at least one face of a first face of the laminate and a second face opposite the first face. The laminate includes a flexible substrate, a circuit layer including a plurality of first electrodes and at least one second electrode, the circuit layer being stacked on the flexible substrate, and a piezoelectric layer stacked on the circuit layer. One of the ultrasonic transducers includes at least one of the first electrodes that is in contact with the piezoelectric layer, and at least one of the second electrodes that is in contact with the piezoelectric layer, and the frame layer has a cavity at a position that overlaps the first electrode in plan view.

公开(公告)号：US20240295449A1

公开(公告)日：2024-09-05

申请号：US18588510

申请日：2024-02-27

Applicant: Japan Display Inc.

Inventor： Hiroumi KINJO

IPC: G01L1/14 ,  G01L1/20

CPC classification number: G01L1/146 ,  G01L1/205

Abstract: A force distribution sensor includes an array substrate, a sensor sheet, and a protective sheet that are stacked in order on a predetermined installation surface. The array substrate includes a first surface on which the sensor sheet is disposed and that faces in a first direction, and a plurality of array electrodes provided on the first surface.