IP Library Granted Patent US 12,453,259
Granted Patent B2
US 12,453,259 · App. 17/897,562 · Granted Oct 21, 2025

Electronic device with shape memory resin

Inventor: Takumi Sano (Tokyo, JP)
Assignee: Magnolia White Corporation
H10K59/131H10K50/844H10K77/111
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Quick Facts
Patent No.
US 12,453,259
App. No.
17/897,562
Granted
Oct 21, 2025
Kind
B2
Abstract

According to one embodiment, an electronic device, wherein a insulating base and a wiring line are located between a first resin layer and a second resin layer, the insulating base includes a plurality of line portions in which the wiring line is located, and a plurality of island-shaped portions connected to the plurality of line portions, the second resin layer includes a first portion overlapping the plurality of line portions and the plurality of island-shaped portions, and a second portion located between the plurality of line portions, the second portion is in contact with the first resin layer, and at least one of the first resin layer, the first portion and the second portion is a shape memory resin layer.

Claims (37)

1. An electronic device comprising:

a plurality of scanning lines extending along a first direction;

a plurality of signal lines extending along a second direction intersecting the first direction;

a plurality of electrical elements each being located at an intersection of each of the scanning lines and each of the signal lines, and being electrically connected to each of the scanning lines and each of the signal lines;

a first shape memory resin layer;

a flexible insulating base disposed on the first shape memory resin layer;

a wiring line disposed on the insulating base; and

a second shape memory resin layer covering the insulating base and the wiring line,

wherein

the plurality of the scanning lines and the plurality of the signal lines have wavy shape,

the insulating base and the wiring line are located between the first shape memory resin layer and the second shape memory resin layer,

the insulating base includes a plurality of line portions in which the wiring line is located, and a plurality of island-shaped portions connected to the plurality of line portions,

the second shape memory resin layer includes a first portion overlapping the plurality of line portions and the plurality of island-shaped portions, and a second portion located between the plurality of line portions,

the second portion is in contact with the first shape memory resin layer, and

the first portion and the second portion are formed of a same material to be integrated into one body, and

the plurality of the scanning lines and the plurality of the signal lines include the wiring line.

2. The electronic device according to claim 1 , wherein

a thickness of the first portion is less than a thickness of the second portion.

3. An electronic device comprising:

a plurality of scanning lines extending along a first direction;

a plurality of signal lines extending along a second direction intersecting the first direction;

a plurality of electrical elements each being located at an intersection of each of the scanning lines and each of the signal lines, and being electrically connected to each of the scanning lines and each of the signal lines;

a first shape memory resin layer;

a second shape memory resin layer;

an insulating base located between the first shape memory resin layer and the second shape memory resin layer;

a flexible resin section overlapping the first shape memory resin layer; and

a wiring line located between the insulating base and the flexible resin section,

wherein

the plurality of the scanning lines and the plurality of the signal lines have wavy shape,

the insulating base includes a plurality of line portions in which the wiring line is located, and a plurality of island-shaped portions connected to the plurality of line portions,

the flexible resin section overlaps the plurality of line portions and the plurality of island-shaped portions,

the second shape memory resin layer is located between the plurality of line portions,

the flexible resin section is formed of a material different from that of the second shape memory resin layer,

the second shape memory resin layer is in contact with the first shape memory resin layer, and

the plurality of the scanning lines and the plurality of the signal lines include the wiring line.

4. The electronic device according to claim 3 , wherein

the flexible resin section is formed in a same layer as that of the second shape memory resin layer.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 27, 2025
From: JAPAN DISPLAY INC.
To: MAGNOLIA WHITE CORPORATION
Reel/Frame 071550/0432 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 30, 2022
From: SANO, TAKUMI
To: JAPAN DISPLAY INC.
Reel/Frame 060937/0443 →
Priority Claims (1)
JP 2020-034821 · Mar 2, 2020 · national
Continuity (2)
Continuation PCTJP2020047437 · Dec 18, 2020
Related Publication 20220416182A1 · Dec 29, 2022
References Cited (17)
US 20070188986A1 · Kobayashi · 2007 [cited by examiner]
US 20150282294A1 · Wakuda et al. · 2015 [cited by applicant]
US 20150282296A1 · Ogura et al. · 2015 [cited by applicant]
US 20170181276A1 · Sawada et al. · 2017 [cited by applicant]
US 20170181277A1 · Tomita · 2017 [cited by examiner]
US 20190386229A1 · Li · 2019 [cited by applicant]
US 20210013431A1 · Kawata et al. · 2021 [cited by applicant]
JP 2007134473A · 2007 [cited by applicant]
JP 2015198101A · 2015 [cited by applicant]
JP 2015198102A · 2015 [cited by applicant]
JP 2017113088A · 2017 [cited by applicant]
JP 2017118109A · 2017 [cited by applicant]
JP 2017220559A · 2017 [cited by applicant]
JP 2019175924A · 2019 [cited by applicant]
English translation of Office Action issued in related Japanese Patent Application No. 2020-034821 mailed on May 7, 2024. 4 pages. [cited by applicant]
International Search Report issued in International Patent Application No. PCT/JP2020/047437 on Mar. 16, 2021 and English translation of same. 5 pages. [cited by applicant]
Written Opinion issued in International Patent Application No. PCT/JP2020/047437 on Mar. 16, 2021. 4 pages. [cited by applicant]