# US 8,786,185 B2 · Organic electroluminescence display device

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- Number: US 8,786,185 B2
- Document ID: US8786185B2
- Status: Granted
- Kind: B2
- Application number: 14/154,986
- Filed: 2014-01-14
- Published: 2014-05-08
- Granted: 2014-07-22
- Earliest claimed: 2007-05-14
- Assignees: Sony Corporation
- Applicants: Sony Corporation
- Inventors: Mitsuhiro Kashiwabara; Jiro Yamada; Hiroshi Fujimaki; Hirofumi Fujioka; Reo Asaki
- Web page: https://patentgrep.com/patent/US8786185B2

## CPC

- H10K 59/805: {Electrodes}
- H10H 20/832: characterised by their material
- H10K 59/80522: {combined with auxiliary electrodes}
- H10K 50/828: Transparent cathodes, e.g. comprising thin metal layers
- H10K 59/122: Pixel-defining structures or layers, e.g. banks
- H10K 59/1315: {comprising structures specially adapted for lowering the resistance}
- H10K 2102/3026: {Top emission}
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10H: INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS

## Abstract

An organic electroluminescence display device is provided. The organic electroluminescence display device includes plural organic electroluminescence elements. Each organic electroluminescence element includes: a lower electrode; an insulating layer having an opening, in which a lower electrode is exposed at the bottom of the opening; an auxiliary wiring; a stacked structure provided from a portion over the lower electrode exposed at the bottom of the opening to a portion of the insulating layer surrounding the opening, including a light emitting layer made of an organic light-emitting material; and an upper electrode. At least one layer of the stacked structure partially contacts the auxiliary wiring. The insulating layer and the auxiliary wiring are provided in common to the plurality of organic EL elements. The upper electrode covers the whole surface of the stacked structures and the auxiliary wiring.

## Claims

### Claim 1

An organic electroluminescence display device comprising:
an insulating layer having an opening;
a wiring;
a stacked structure formed in the opening and over a portion of the insulating layer surrounding the opening, the stacked structure including a light emitting layer made of an organic light-emitting material; and
an upper electrode covering the stacked structure and a portion of the wiring,
wherein a part of the stacked structure covers an edge of the insulating layer, and
wherein a part of the upper electrode covers an edge of the stacked structure.

### Claim 2 (depends on 1)

The organic electroluminescence display device according to claim 1, wherein a part of the upper electrode covers an edge of the stacked structure on the wiring.

### Claim 3 (depends on 1)

The organic electroluminescence display device according to claim 1, wherein a part of the upper electrode covers an edge of the stacked structure to connect to the wiring.

### Claim 4 (depends on 1)

The organic electroluminescence display device according to claim 1, wherein at least one layer of the stacked structure has a portion connected to the wiring.

### Claim 5 (depends on 1)

The organic electroluminescence display device according to claim 1, wherein the wiring is an auxiliary wiring of the upper electrode.

### Claim 6 (depends on 1)

The organic electroluminescence display device according to claim 1, further comprising a lower electrode,
wherein the organic light-emitting material dispose between the lower electrode and the upper electrode.

### Claim 7 (depends on 6)

The organic electroluminescence display device according to claim 6, wherein the organic light-emitting material is configured to emit light according to a current flowing via the lower electrode, the organic light-emitting material, the upper electrode, and the wiring.

### Claim 8 (depends on 1)

The organic electroluminescence display device according to claim 1, wherein the wiring has a belt-shape or a lattice-shape.

### Claim 9

A light-emitting device comprising:
an insulating layer having an opening;
a wiring;
a stacked structure formed in the opening and over a portion of the insulating layer surrounding the opening, the stacked structure including a light emitting layer made of an organic light-emitting material; and
an upper electrode covering the stacked structure and a portion of the wiring,
wherein a part of the stacked structure covers an edge of the insulating layer, and
wherein a part of the upper electrode covers an edge of the stacked structure.

### Claim 10 (depends on 9)

A light-emitting device according to claim 9, wherein a part of the upper electrode covers an edge of the stacked structure on the wiring.

### Claim 11 (depends on 9)

A light-emitting device according to claim 9, wherein a part of the upper electrode covers an edge of the stacked structure to connect to the wiring.

### Claim 12 (depends on 9)

A light-emitting device according to claim 9, wherein at least one layer of the stacked structure has a portion connected to the wiring.

### Claim 13 (depends on 9)

A light-emitting device according to claim 9, wherein the wiring is an auxiliary wiring of the upper electrode.

### Claim 14 (depends on 9)

A light-emitting device according to claim 9, further comprising a lower electrode,
wherein the organic light-emitting material dispose between the lower electrode and the upper electrode.

### Claim 15 (depends on 14)

A light-emitting device according to claim 14, wherein the organic light-emitting material is configured to emit light according to a current flowing via the lower electrode, the organic light-emitting material, the upper electrode, and the wiring.

### Claim 16 (depends on 9)

A light-emitting device according to claim 9, wherein the wiring has a belt-shape or a lattice-shape.