IP Library Granted Patent US 9,972,806
Granted Patent B2
US 9,972,806 · App. 15/699,113 · Granted May 15, 2018

Display Device

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Quick Facts
Patent No.
US 9,972,806
App. No.
15/699,113
Granted
May 15, 2018
Kind
B2
Abstract

A light-emitting element display device includes: a display area which has an organic insulating layer that is made of an organic insulating material; a peripheral circuit area which is disposed around the display area and which has the organic insulating layer; and a blocking area that is formed between the display area and the peripheral circuit area. The blocking area includes: a first blocking area configured by only one or a plurality of inorganic material layers between an insulating base substrate and an electrode layer which covers the display area and is formed continuously from the display area, and which configures one of two electrodes for allowing the light emitting area to emit the light; and a second blocking area including a plurality of layers configuring the first blocking area, and a light emitting organic layer.

Claims (38)

1. A display device comprising:

a display area on a substrate;

a contact area outside of the display area; and

a blocking area outside of the display area,

the display area comprises:

a plurality of first electrodes arranged in a matrix;

an organic insulating layer covering an edge of a first electrode of the plurality of first electrodes and covering a clearance between two adjacent first electrodes, the organic insulating layer exposing a part of the first electrode;

an organic layer including a light emitting layer, the organic layer covering the exposed part of the first electrode;

a second electrode covering the organic layer and the organic insulating layer, the second electrode extending from the display area to the contact area and the blocking area; and

a sealing film covering the second electrode, the sealing film extends from the display area to the contact area and the blocking area,

the contact area comprises:

the organic insulating layer, and

a wiring, a part of which covered with the organic insulating layer, and another part of which exposed from the organic insulating layer,

the blocking area comprises:

a first blocking area in which the organic insulating layer isn't between the substrate and the sealing film; and

a second blocking area in which the organic insulating layer isn't between the substrate and the sealing film, wherein

the second electrode is electrically connected to the exposed part of the wiring at the contact area,

the first blocking area and the second blocking area are separated each other,

the contact area is between the first blocking area and the second blocking area,

the first blocking area is nearer to an edge of the substrate than the contact area, and

the second blocking area is nearer to the display area than the contact area.

2. The display device according to claim 1 , wherein

the sealing film covers an edge part of the second electrode.

3. The display device according to claim 1 , wherein

the first blocking area surrounds the second blocking area and the contact area.

4. The display device according to claim 1 , wherein

the second blocking area surrounds the display area.

5. The display device according to claim 1 , wherein

the first electrode and the wiring are formed of the same conductive layer.

6. The display device according to claim 1 , wherein

the contact area extends along at least one side of the display area.

7. The display device according to claim 1 , wherein

the contact area extends along at least two sides of the display area which face each other.

8. The display device according to claim 1 , wherein

a distance between the sealing layer and the substrate at the blocking area is smaller than a distance between the sealing layer and the substrate at the display area.

9. The display device according to claim 1 ,

the blocking area further comprises a third blocking area in which the organic insulating layer isn't between the substrate and the sealing film, and in which the organic layer is between the substrate and the sealing film, wherein

the third blocking area is between the second blocking area and the display area.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 22, 2025
From: JAPAN DISPLAY INC.
To: MAGNOLIA WHITE CORPORATION
Reel/Frame 072130/0313 →