IP Library Granted Patent US 10,892,315
Granted Patent B2
US 10,892,315 · App. 16/788,830 · Granted Jan 12, 2021

Display device

Inventor: Yasushi Kawata (Tokyo, JP)
Assignee: Japan Display Inc.
H01L27/3276H01L27/12H01L27/1218H01L27/1248H01L51/0097G02F1/1345G02F1/133305H01L27/1244H01L27/3246H01L27/3258H01L2251/5338Y02E10/549
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Quick Facts
Patent No.
US 10,892,315
App. No.
16/788,830
Granted
Jan 12, 2021
Kind
B2
Abstract

According to one embodiment, a display device comprises a flexible substrate, a first insulating film disposed on the flexible substrate, a switching element disposed on the first insulating film, a signal wiring electrically connected with the switching element, a first organic film disposed on the signal wiring, a connection wiring disposed on the first organic film, a second organic film disposed on the connection wiring and a pad electrode disposed on the second organic film. The connection wiring is located between the first organic film and the second organic film and is in contact with the first organic film and the second organic film.

Claims (43)

1. An electronic device comprising:

a flexible substrate;

a first insulating film provided on the flexible substrate;

a switching element provided on the first insulating film;

a second insulating film provided on a semiconductor layer of the switching element;

a third insulating film provided on a gate electrode of the switching element;

a first organic film provided on the third insulating film;

a wiring electrically connected with the switching element; and

a pad electrode electrically connected with the wiring,

wherein

the wiring is in a first portion, a second portion, and a third portion,

the second portion is between the first portion and the third portion,

the pad electrode is in the third portion,

in the first portion and the third portion, the first insulating film, the second insulating film, and the first organic film are between the flexible substrate and the wiring,

in the second portion, the first organic film is between the flexible substrate and the wiring and in contact with a surface of the flexible substrate, and

a thickness of the first organic film located in the second portion is larger than a thickness of the first organic film located in the first portion and the third portion.

2. The electronic device of claim 1 , further comprising a second organic film covering the wiring,

wherein the wiring is between the first organic film and the second organic film.

3. The electronic device of claim 1 , wherein

the flexible substrate is formed of polyimide.

4. The electronic device of claim 1 , wherein

the wiring includes a signal wiring and a connection wiring,

the signal wiring is provided on the third insulating film, and

the connection wiring is provided on the first organic film.

5. The electronic device of claim 4 , wherein

the signal wiring and the connection wiring are connected to each other through a first contact portion in the first organic film.

6. The electronic device of claim 5 , wherein

the first contact portion is in the first portion.

7. The electronic device of claim 2 , wherein

the wiring includes a signal wiring and a connection wiring,

the signal wiring is provided on the third insulating film,

the connection wiring is provided on the first organic film, and

the pad electrode is provided on the second organic film.

8. The electronic device of claim 7 , wherein

the signal wiring and the connection wiring are connected to each other through a first contact portion in the first organic film, and

the connection wiring and the pad electrode are connected to each other through a second contact portion in the second organic film.

9. The electronic device of claim 8 , vherein

the first contact portion is in the first portion, and

the second contact portion is in the third portion.

10. The electronic device of claim 8 , vherein

the second portion is between the first contact portion and the second contact portion.

11. The electronic device of claim 1 , wherein

the flexible substrate is bent in the second portion.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 26, 2026
From: MAGNOLIA WHITE CORPORATION
To: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
Reel/Frame 074188/0280 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 22, 2025
From: JAPAN DISPLAY INC.
To: MAGNOLIA WHITE CORPORATION
Reel/Frame 072130/0313 →
Priority Claims (1)
JP 2016-075331 · Apr 4, 2016 · national
Continuity (3)
Continuation 16504943 · Jul 8, 2019
Continuation 15478400 · Apr 4, 2017
Related Publication 20200176549A1 · Jun 4, 2020
Cited By (1)
US 12,543,440