IP Library Granted Patent US 9,793,513
Granted Patent B2
US 9,793,513 · App. 15/281,213 · Granted Oct 17, 2017

Display device

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Quick Facts
Patent No.
US 9,793,513
App. No.
15/281,213
Granted
Oct 17, 2017
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 (29)

1. A display device comprising:

a display area on a substrate;

a contact area outside of the display area on the substrate; and

a blocking area outside of the display area on the substrate,

the display area comprises:

a plurality of first electrodes arranged in a matrix;

an organic insulating layer covering an edge of the first electrode 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 an 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;

a metal wiring covered with the organic insulating layer; and

an aperture in the organic insulating layer exposing a part of the metal wiring,

the blocking area comprises:

a first blocking area configured by only one or a plurality of layers made of inorganic insulating material between the substrate and the sealing film; and

a second blocking area configured by the layers configuring the first blocking area and the second electrode between the substrate and the sealing film, wherein

the second electrode is electrically connected to the metal wiring at the aperture.

2. The display device according to claim 1 , wherein

the display area is surrounded by the blocking area.

3. The display device according to claim 1 , wherein

the display area has a rectangle shape, and

the contact area extends along at least two sides of the display area.

4. The display device according to claim 1 , wherein

the block area further comprises a third blocking area configured by the layers configuring the second blocking area and a part of the organic layer.

5. The display device according to claim 1 , wherein

the organic layer further comprises any one of a hole injection layer, a hole transport layer, an electron injection layer, and an electron transport layer.

6. 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.

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