IP Library Granted Patent US 11,569,465
Granted Patent B2
US 11,569,465 · App. 17/731,296 · Granted Jan 31, 2023

Display device

Inventor: Masumi Nishimura (Minato-ku, JP)
Assignee: Japan Display Inc.
H01L51/0097H01L27/3246H01L27/3274H01L27/3276H01L51/5203H01L51/5212H01L51/5228H01L51/5237H01L51/5253H01R12/62H01L2251/301H01L2251/5338H01L2251/558Y02E10/549
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Quick Facts
Patent No.
US 11,569,465
App. No.
17/731,296
Granted
Jan 31, 2023
Kind
B2
Abstract

In a display device including a flexible display panel, the risk of disconnection of a wiring due to bending is reduced. A display panel includes a display function layer including display elements and a wiring on one major surface of a base material having flexibility. The display panel includes, on the one major surface of the base material, an organic-film-covered wiring area where the surface of the wiring is covered with an organic planarization film that is an organic insulating film in direct contact with the wiring. The display panel includes, in the plane thereof, a display area where the display elements are arranged and a component mounting area that is a peripheral area located outside the display area. As the organic-film-covered wiring area, a curved area is provided in the peripheral area.

Claims (28)

1. A flexible panel comprising:

a first organic insulating film having flexibility;

a pixel area in which pixels having respective thin film transistors are arranged;

a peripheral area located outside the pixel area in plan view;

a first inorganic film on the first organic insulating film;

a wiring above the first inorganic film; and

a second organic insulating film above the wiring,

wherein the wiring continuously extends over the pixel area and the peripheral area,

the second organic insulating film continuously extends over the pixel area and the peripheral area,

an upper surface of the wiring is covered with the second organic insulating film and is in contact with the second organic insulating film,

a first area of a lower surface of the wiring is in contact with the first organic insulating film, and

a second area of the lower surface of the wiring is in contact with the first inorganic film.

2. The flexible panel according to claim 1 , wherein

the first area is in the peripheral area.

3. The flexible panel according to claim 1 , wherein

at least one of an integrated circuit or a flexible printed circuit is disposed in the peripheral area, and

the upper surface of the wiring is in contact with the second organic insulating film in the pixel area and the peripheral area.

4. The flexible panel according to claim 1 , wherein

the first organic insulating film includes a curved portion in the peripheral area, and

the first area is in the curved portion.

5. The flexible panel according to claim 1 , wherein

the first organic insulating film is made of polyimide.

6. The flexible panel according to claim 1 , wherein

the first organic insulating film includes a first thickness portion and a second thickness portion in the peripheral area,

the second thickness portion is closer to the pixel area than the first thickness portion in the plan view,

the first thickness portion is thinner than the second thickness portion,

the wiring overlaps with the first thickness portion and the second thickness portion, and

the first thickness portion of the first organic insulating film is in contact with the wiring.

Assignments (1)
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 JP2016-220147 · Nov 11, 2016 · national
Continuity (6)
Continuation 17314443 · May 7, 2021
Continuation 16520962 · Jul 24, 2019
Continuation 16141298 · Sep 25, 2018
Continuation 15961409 · Apr 24, 2018
Continuation 15792904 · Oct 25, 2017
Related Publication 20220255024A1 · Aug 11, 2022
Cited By (1)
US 12,356,847