公开(公告)号：US20240121892A1

公开(公告)日：2024-04-11

申请号：US18472241

申请日：2023-09-22

Applicant: Japan Display Inc.

Inventor： Takumi SANO ,  Masatomo HISHINUMA

IPC: H05K1/02

CPC classification number: H05K1/0283 ,  H05K2201/10151

Abstract: A stretchable device includes a resin base member, a signal line, and a strain gauge. The resin base member includes: bodies disposed separately from each other; and hinges that couple the bodies while meandering. Each hinge includes: a base and bends. The bends include a first bend coupled to the base. The first bend includes a first inner peripheral portion and a first outer peripheral portion with respect to a center in a width direction orthogonal to a length direction in which the hinge extends. The base includes an inner peripheral coupling portion coupled to the first inner peripheral portion and an outer peripheral coupling portion coupled to the first outer peripheral portion with respect to the center in the width direction. The signal line is provided to the hinge. An imaginary center line passing through the center of the signal line overlaps the outer peripheral coupling portion.

公开(公告)号：US20230236079A1

公开(公告)日：2023-07-27

申请号：US18153435

申请日：2023-01-12

Applicant: Japan Display Inc.

Inventor： Hiroumi KINJO ,  Masatomo HISHINUMA

IPC: G01L1/22

CPC classification number: G01L1/2293

Abstract: A force sensor includes a resin substrate, an array substrate, a sensor layer, a common electrode, and a protective film that are sequentially stacked. The array substrate includes a stretchable base material stacked on the resin substrate, and an array layer stacked on the resin substrate with the stretchable base material interposed between the array layer and the resin substrate, and the stretchable base material includes a plurality of first extension parts extending in a first direction parallel to the resin substrate and arranged in a second direction parallel to the resin substrate and intersecting the first direction, a plurality of second extension parts extending in the second direction and arranged in the first direction, and a plurality of body parts provided at parts where the first extension parts intersect the second extension parts.

公开(公告)号：US20250022883A1

公开(公告)日：2025-01-16

申请号：US18767026

申请日：2024-07-09

Applicant: Japan Display Inc.

Inventor： Yosuke HYODO ,  Hiroumi KINJO ,  Masatomo HISHINUMA

IPC: H01L27/12

Abstract: According to an aspect, a stretchable device includes: a stretchable substrate comprising bodies and hinges that couple the bodies to each other; and a pair of stretchable resins with the stretchable substrate interposed therebetween. The stretchable device includes a detection region in which a load is capable of being detected and a non-detection region when viewed in a stacking direction in which the stretchable substrate and the stretchable resins overlap. One or more of the hinges are detection hinges each provided with a strain gauge. All of the detection hinges overlap the detection region when viewed in the stacking direction. The stretchable resins each includes: a bonded region that overlaps the non-detection region when viewed in the stacking direction and is bonded to the stretchable substrate; and an unbonded region that overlaps the detection region when viewed in the stacking direction and is not bonded to the stretchable substrate.

公开(公告)号：US20240255996A1

公开(公告)日：2024-08-01

申请号：US18418552

申请日：2024-01-22

Applicant: Japan Display Inc.

Inventor： Masatomo HISHINUMA ,  Takumi SANO

IPC: G06F1/16 ,  G01L1/22

CPC classification number: G06F1/1652 ,  G01L1/225 ,  G06F1/1681

Abstract: A stretchable device includes a resin base member, strain gauges, and electrical wiring. The strain gauges include a longitudinal strain gauge and a lateral strain gauge. The electrical wiring includes an electrical wiring line for longitudinal strain and an electrical wiring line for lateral strain. The electrical wiring line for longitudinal strain and the electrical wiring line for lateral strain each include a first potential line, a second potential line, a coupling line, a first signal line, and a second signal line. The first signal line detects a third potential at a first coupling point where the second end of the corresponding strain gauge is coupled to the second potential line. The second signal line detects a fourth potential at a midpoint of the coupling line. The amount of change in resistance of each strain gauge is detected based on a difference between the third potential and the fourth potential.

公开(公告)号：US20240147610A1

公开(公告)日：2024-05-02

申请号：US18491810

申请日：2023-10-23

Applicant: Japan Display Inc.

Inventor： Takumi SANO ,  Masatomo HISHINUMA

IPC: H05K1/02

CPC classification number: H05K1/0283 ,  H05K1/0269

Abstract: According to an aspect, a stretchable device includes: a resin base member including a plurality of island-shaped portions spaced apart from each other and a plurality of strip portions that couple the island-shaped portions; and a first gauge line and a second gauge line having a gauge factor higher than a gauge factor of the first gauge line, the first gauge line and the second gauge line being provided to each of the strip portions. The first gauge line and the second gauge line each extend along an extending direction of the strip portion and are coupled along the extending direction of the strip portion. The length of the second gauge line along the extending direction of the strip portion is shorter than the length of the first gauge line along the extending direction of the strip portion.

公开(公告)号：US20240019902A1

公开(公告)日：2024-01-18

申请号：US18214673

申请日：2023-06-27

Applicant: Japan Display Inc.

Inventor： Masatomo HISHINUMA ,  Hiroumi KINJO

IPC: G06F1/16

CPC classification number: G06F1/1652 ,  G06F1/1681

Abstract: According to an aspect, a stretchable device includes: a resin base member; and an array layer stacked on the resin base member. The resin base member includes: bodies separated from each other; and hinges that couple the bodies. Each hinge includes bends. Each bend is divided into an inner peripheral portion positioned on an inner side and an outer peripheral portion positioned on an outer side with respect to a center serving as a boundary in a width direction intersecting a direction in which the bend extends. The inner peripheral portions included in one of the hinges constitute an inner peripheral region. The outer peripheral portions included in one of the hinges constitute an outer peripheral region. The array layer includes gauge lines overlapping the respective hinges. At least part of each gauge line overlaps one of the inner peripheral region and the outer peripheral region alone.

公开(公告)号：US20230328880A1

公开(公告)日：2023-10-12

申请号：US18131018

申请日：2023-04-05

Applicant: Japan Display Inc.

Inventor： Masatomo HISHINUMA ,  Hiroumi KINJO

IPC: H05K1/02

CPC classification number: H05K1/0296 ,  H05K2201/10151 ,  H05K2201/09263

Abstract: According to one embodiment, an electronic device includes a first substrate and a second substrate. The first substrate includes a first insulating base, a wiring layer and a sensor electrode. The first insulating base is made into a mesh-like form. The wiring layer is disposed over a first band portion of the first insulating base. The sensor electrode is disposed over a first island-shaped portion of the first insulating base. The second substrate includes a second insulating base, a common electrode and a sensor sheet. The second insulating base is made into a mesh-like form. The common electrode is made into a mesh-like form. The sensor sheet overlaps a second island-shaped portion of the second insulating base in plan view and is disposed below the common electrode.