IP Library Granted Patent US 10,141,542
Granted Patent B2
US 10,141,542 · App. 15/863,204 · Granted Nov 27, 2018

Display device

Inventor: Masamitsu Furuie (Minato-ku, JP)
Assignee: Japan Display Inc.
H01L51/5253H01L51/5012H01L51/5206H01L51/5221H01L51/5246H01L51/56H01L51/5203H01L51/5237H01L51/5259H01L2251/5338
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Quick Facts
Patent No.
US 10,141,542
App. No.
15/863,204
Granted
Nov 27, 2018
Kind
B2
Abstract

A display device, which includes a display region in which a plurality of pixels are arranged, includes a first organic insulating film, a first groove, which exists in a frame shape surrounding the display region to separate the first organic insulating film, a first inorganic partition portion, which is arranged in the first groove, and is made of an inorganic insulating material that exists in a frame shape surrounding the display region, a second organic insulating film formed above the first organic insulating film and the first inorganic partition portion, and a second groove, which exists in a frame shape surrounding the display region to separate the second organic insulating film, and is located inside the first groove in plan view.

Claims (47)

1. A display device, which includes a display region in which pixels are arranged, comprising:

a first organic insulating film;

a first groove;

a first inorganic partition portion;

a second organic insulation film;

a second groove,

wherein the first groove separates the first organic insulation film and has a frame shape surrounding the display region,

the first inorganic partition portion is in the first groove and has a frame shape surrounding the display region,

the second groove separates the second organic insulation film,

the first inorganic partition portion includes an upper surface that is below an upper surface of the second organic insulating film, and

the second groove is inside the first groove.

2. The display device according to claim 1 , wherein the first inorganic partition portion includes an upper surface that is above an upper surface of the first organic insulating film.

3. The display device according to claim 1 , further comprising:

a third groove which has a frame shape surrounding the first groove, the third groove separating the first organic insulating film:

a second inorganic partition portion, which is in the third groove and has a frame shape surrounding the first groove.

4. The display device according to claim 1 ,

wherein the second groove has a frame shape surrounding the display region.

5. The display device according to claim 4 , further comprising:

a third groove which has a frame shape surrounding the first groove, the third groove separating the first organic insulating film;

a second inorganic partition portion which is in the third groove and has a frame shape surrounding the first groove.

6. The display device according to claim 5 , further comprising:

a fourth groove,

wherein the fourth groove has a frame shape surrounding the first groove,

the fourth groove separates the second organic insulating film, and

the fourth groove is located inside the third groove in plan view.

7. The display device according to claim 1 , further comprising:

a pixel electrode which is above the first organic insulating film;

an inorganic insulating film which is below the first organic insulating film; and

a lower electrode which is between the first organic insulating film and the inorganic insulating film and which is connected to the pixel electrode via an interlayer connection hole formed in the first organic insulating film,

wherein, between the first inorganic partition portion and the inorganic insulating film, wirings in a same layer as the lower electrode extend across a region of the first inorganic partition portion.

8. The display device according to claim 1 , further comprising:

an inorganic insulating film below the first organic insulating film; and

a lower electrode arranged between the first organic insulating film and the inorganic insulating film which is connected to a pixel electrode via an interlayer connection hole in the first organic insulating film,

wherein a circuit element including a conductive film in a same layer as the lower electrode is below the first inorganic partition portion.

9. The display device according to claim 1 , further comprising:

an inorganic insulating film between the first organic insulating film and the second organic insulating film; and

a counter electrode between the first organic insulating film and the inorganic insulating film which is opposed to a pixel electrode with the inorganic insulating film being interposed between the counter electrode and the pixel electrode,

wherein at least one of a part of the inorganic insulating film or a conductive film in a same layer as the counter electrode is above the first inorganic partition portion.

10. The display device according to claim 1 , wherein a conductive film in a same layer as a pixel electrode is above the first inorganic partition portion.

11. The display device according to claim 1 , further comprising:

an inorganic insulating film below the first organic insulating film; and

a lower electrode between the first organic insulating film and the inorganic insulating film which is connected to a pixel electrode via an interlayer connection hole formed in the first organic insulating film,

wherein the first inorganic partition portion includes at least one of a part of the inorganic insulating film or a conductive film in a same layer as the lower electrode.

12. The display device according to claim 1 , further comprising:

an organic film which is arranged on a pixel electrode in an aperture formed in the second organic insulating film and includes a light emitting layer; and

a counter electrode is on the organic film.

13. The display device according to claim 1 , wherein an organic material is not to extend across a region of the first inorganic partition portion.

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 2016-001317 · Jan 6, 2016 · national
Continuity (2)
Continuation 15343922 · Nov 4, 2016
Related Publication 20180145280A1 · May 24, 2018