IP Library Granted Patent US 11,349,090
Granted Patent B2
US 11,349,090 · App. 17/314,443 · Granted May 31, 2022

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 11,349,090
App. No.
17/314,443
Granted
May 31, 2022
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 (22)

1. A display device comprising:

a display panel including a display area and a peripheral area outside the display area;

a resin film located in the display area and the peripheral area;

a wiring located in the peripheral area and on the resin film; and

an organic insulating film located in the peripheral area,

wherein the wiring is located between the resin film and the organic insulating film,

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

the second thickness portion is closer to the display area than the first thickness portion, along an extending direction of the resin film,

an inorganic film is arranged on the second thickness portion of the resin film,

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

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

2. The display device according to claim 1 , wherein

the resin film is in contact with the wiring at the first thickness portion.

3. The display device according to claim 1 , wherein

the resin film includes a non-curved area and a curved area, and

the first thickness portion is located in the curved area.

4. The display device according to claim 1 , wherein

the inorganic film is located between the second thickness portion of the resin film and the wiring.

5. The display device according to claim 1 , wherein

the wiring is in contact with the inorganic film at the second thickness portion.

6. The display device according to claim 1 , wherein

the resin film includes polyimide.

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 (5)
Continuation 16520962 · Jul 24, 2019
Continuation 16141298 · Sep 25, 2018
Continuation 15961409 · Apr 24, 2018
Continuation 15792904 · Oct 25, 2017
Related Publication 20210265581A1 · Aug 26, 2021