# US 10,312,467 B2 · Organic EL element and method for manufacturing same

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- Number: US 10,312,467 B2
- Document ID: US10312467B2
- Status: Granted
- Kind: B2
- Application number: 15/768,978
- Filed: 2016-06-06
- Published: 2019-02-28
- Granted: 2019-06-04
- Earliest claimed: 2015-10-20
- Assignees: Sumitomo Chemical Company, Limited
- Applicants: Sumitomo Chemical Company, Limited
- Inventors: Masaya Shimogawara; Shinichi Morishima; Masato Shakutsui
- Web page: https://patentgrep.com/patent/US10312467B2

## CPC

- H01L 51/5237
- H01L 51/5209
- H01L 51/5228
- H01L 51/56
- H01L

## Abstract

An organic EL element comprises a supporting substrate 12 having a first side surface 12b and a second side surface 12c located opposite to the first side surface in the first direction, a first electrode-attached on the supporting substrate, an organic EL body 16 disposed on the first electrode, a second electrode 18 disposed extending from the first side surface to the second side surface and covering at least a part of the organic EL body, and a sealing member disposed on the second electrode, extending from the first side surface to the second side surface and sealing at least the organic EL body, each of the side surfaces 18a and 20a of the second electrode and the sealing member on the first side surface-side being made evened with the first side surface, and each of the side surfaces 18b and 20b of the second electrode and the sealing member on the second side surface-side being made evened with the second side surface, in the first direction.

## Claims

### Claim 1

An organic EL element comprising:
a supporting substrate having a first side surface and a second side surface located opposite to the first side surface in a first direction;
a first electrode disposed on the supporting substrate;
an organic EL body disposed on the first electrode and including a light emitting layer;
a second electrode disposed extending from the first side surface to the second side surface, and covering at least a part of the organic EL body; and
a sealing member disposed on the second electrode, extending from the first side surface to the second side surface, and sealing at least the organic EL body;
each of the side surfaces of the second electrode and the sealing member on the first side surface-side being made evened with the first side surface, and each of the side surfaces of the second electrode and the sealing member on the second side surface-side being made evened with the second side surface, in the first direction.

### Claim 2 (depends on 1)

The organic EL element according to claim 1, wherein
the first electrode has a first region and a second region adjacent to the first region, in a second direction perpendicular to a thickness direction of the supporting substrate and the first direction;
the organic EL body covers the first region; and
an edge of the second region on the opposite side of the first region is exposed from the sealing member in the second direction.

### Claim 3 (depends on 2)

The organic EL element according to claim 2, wherein
the second electrode covers a part of the organic EL body other than an edge on the second region-side.

### Claim 4 (depends on 3)

The organic EL element according to claim 3, wherein
the edge of the organic EL body on the second region-side is covered with a hygroscopic part in the second direction.

### Claim 5 (depends on 2)

The organic EL element according to claim 2, wherein
the second electrode covers the organic EL body; and
an insulating layer is disposed between the second region and the second electrode.

### Claim 6 (depends on 2)

The organic EL element according to claim 2, wherein
an extracting electrode in electrically contact with the second electrode is further disposed on the supporting substrate;
the extracting electrode is disposed on the opposite side of the second region in the second direction when viewed from the first region; and
a part of the extracting electrode is exposed from the sealing member.

### Claim 7 (depends on 1)

The organic EL element according to claim 1, wherein
the second electrode comprises transition metal oxides, aluminum or silver.