IP Library Granted Patent US 12,362,249
Granted Patent B2
US 12,362,249 · App. 18/305,428 · Granted Jul 15, 2025

Flexible electronic device

Inventor: Takumi Sano (Tokyo, JP)
Assignee: Japan Display Inc.
H01L23/145H01L25/167G09G3/035G09G2300/0426
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 12,362,249
App. No.
18/305,428
Granted
Jul 15, 2025
Kind
B2
Abstract

Purpose is to realize a flexible electronic device of high reliability. The present invention takes a following structure to realize the purpose. An electronic device including: a plurality of element areas, famed from a first organic insulating film, and formed in island shape arranged in a first direction with a first space and arranged in a second direction with a second space, in which an element, a first wiring extending in the first direction and a second wiring extending in the second direction are formed in each of the plurality of element areas, the first wirings famed in the plurality of the element areas are connected with each other by a first wire bonding in the first direction, and the second wirings famed in the plurality of the element areas are connected with each other by a second wire bonding in the second direction.

Claims (30)

1. An electronic device comprising:

a plurality of element areas, famed from a first organic insulating film, and famed in island shape arranged in a first direction with a first space and arranged in a second direction with a second space,

wherein an element, a first wiring extending in the first direction and a second wiring extending in the second direction are famed in each of the plurality of element areas,

the first wirings famed in the plurality of the element areas are connected with each other by a first wire bonding in the first direction, and

the second wirings famed in the plurality of the element areas are connected with each other by a second wire bonding in the second direction.

2. The electronic device according to claim 1 ,

wherein the plurality of the element areas are famed on a second organic insulating film and covered by a third organic insulating film.

3. The electronic device according to claim 2 ,

wherein each of young's modulus of the second organic insulating film and the third organic insulating film is smaller than young's modulus of the first organic insulating film.

4. The electronic device according to claim 1 ,

wherein the first organic insulating film is formed from polyimide.

5. The electronic device according to claim 1 ,

wherein a distance, in center to center, in a first direction between adjacent element areas is twice or more of a size of each of the element areas in the first direction.

6. The electronic device according to claim 1 ,

wherein a distance, in center to center, in a second direction between adjacent element areas is twice or more of a size of each of the element areas in the second direction.

7. The electronic device according to claim 1 ,

wherein elongation at break in a major surface is 10% or more.

8. The electronic device according to claim 1 ,

wherein the electronic element includes a transistor or diode.

9. The electronic device according to claim 1 ,

wherein the electronic element includes either a photo sensor, a temperature sensor, a pressure sensor, a touch sensor, a light emitting element, or light receiving element.

10. The electronic device according to claim 1 ,

wherein the electronic element is an actuator.

11. The electronic device according to claim 2 ,

wherein the second organic insulating film is famed later than the third organic insulating film.

12. The electronic device according to claim 2 ,

wherein a fourth organic insulating film is formed on the third organic insulating film, and

fifth organic insulating film is formed under the second organic insulating film.

13. The electronic device according to claim 12 ,

wherein young's modulus of the fourth organic insulating film and the fifth organic insulating film are smaller than young's modulus of the first organic insulating film.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 9, 2025
From: JAPAN DISPLAY INC.
To: MAGNOLIA WHITE CORPORATION
Reel/Frame 071639/0162 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 24, 2023
From: SANO, TAKUMI
To: JAPAN DISPLAY INC.
Reel/Frame 063412/0254 →
Priority Claims (1)
JP 2022-072212 · Apr 26, 2022 · national
Continuity (1)
Related Publication 20230343660A1 · Oct 26, 2023
References Cited (12)
US 20140131683A1 · Kim · 2014 [cited by examiner]
US 20140183476A1 · Kwon · 2014 [cited by examiner]
US 20160149156A1 · Kim · 2016 [cited by examiner]
US 20160351636A1 · Lee · 2016 [cited by examiner]
US 20170279057A1 · Park · 2017 [cited by examiner]
US 20190131365A1 · Jung · 2019 [cited by examiner]
US 20210119175A1 · Harikrishna Mohan · 2021 [cited by examiner]
US 20210336203A1 · Sun · 2021 [cited by examiner]
US 20220270988A1 · Nishimura · 2022 [cited by examiner]
US 20220320259A1 · Sano · 2022 [cited by applicant]
US 20220384749A1 · Hishinuma · 2022 [cited by examiner]
JP 2021106199A · 2021 [cited by applicant]