# US 8,148,719 B2 · Organic light emitting display device and fabricating method thereof

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- Number: US 8,148,719 B2
- Document ID: US8148719B2
- Status: Granted
- Kind: B2
- Application number: 11/785,043
- Filed: 2007-04-13
- Published: 2008-06-05
- Granted: 2012-04-03
- Earliest claimed: 2006-11-30
- Assignees: Samsung Mobile Display Co., Ltd.
- Inventors: Jongyun Kim; Byoungdeog Choi
- Web page: https://patentgrep.com/patent/US8148719B2

## CPC

- H10K 59/8722: {Peripheral sealing arrangements, e.g. adhesives, sealants}
- H10K 71/40: Thermal treatment, e.g. annealing in the presence of a solvent vapour
- H10K 77/111: {Flexible substrates}
- H10K 2102/311: {Flexible OLED}
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES

## Abstract

An organic light emitting display includes a substrate, a semiconductor layer arranged on the substrate, an organic light emitting diode arranged on the semiconductor layer, an encapsulant arranged on an top surface periphery of the substrate, which is an outer periphery of the semiconductor layer and the organic light emitting diode, an encapsulation substrate bonded to the encapsulant, and a bonding agent arranged on an under surface of the substrate which is opposite to the encapsulant.

## Claims

### Claim 1

An organic light emitting display device, comprising:
a substrate;
a semiconductor layer arranged on a first major surface of the substrate;
an organic light emitting diode arranged on the semiconductor layer;
an encapsulant arranged on a periphery of the first major surface of the substrate, the periphery comprising an outer periphery of the semiconductor layer and the organic light emitting diode;
an encapsulation substrate bonded to the encapsulant; and
a bonding agent disposed exclusively along and in immediate connection with edges of a second major surface of the substrate opposite to and spaced-apart from the first major surface.

### Claim 2 (depends on 1)

The organic light emitting display device as claimed in claim 1, wherein the bonding agent is arranged near at least one side of the under surface of the substrate.

### Claim 3 (depends on 1)

The organic light emitting display device as claimed in claim 1, wherein the bonding agent is arranged on the under surface of the substrate corresponding to the outer periphery of the semiconductor layer and the organic light emitting diode.

### Claim 4 (depends on 1)

The organic light emitting display device as claimed in claim 1, wherein the bonding agent is arranged on the under surface of the substrate corresponding to the outer periphery of the encapsulant and the encapsulation substrate.

### Claim 5 (depends on 1)

The organic light emitting display device as claimed in claim 1, wherein the substrate is arranged to have a larger area than that of the encapsulation substrate.

### Claim 6 (depends on 1)

The organic light emitting display device as claimed in claim 1, wherein the bonding agent is at least one of an epoxy adhesive or a UV-ray setting adhesive.

### Claim 7 (depends on 1)

The organic light emitting display device as claimed in claim 1, wherein the bonding agent is arranged to have a thickness in a range of 10 μm to about 100 μm.

### Claim 8 (depends on 1)

The organic light emitting display device as claimed in claim 1, wherein the substrate is arranged to have a thickness in a range of 0.05 mm to 1 mm.

### Claim 9 (depends on 1)

The organic light emitting display device as claimed in claim 1, wherein the substrate comprises one of a glass, plastic, or polymer and steel.

### Claim 10 (depends on 1)

The organic light emitting display device as claimed in claim 1, further comprising a non-transmissive layer arranged on the under surface of the substrate.

### Claim 11 (depends on 1)

The organic light emitting display device as claimed in claim 1, further comprising a non-transmissive layer having a thickness in a range of 500˜3000 Å being arranged on the under surface of the substrate.

### Claim 12 (depends on 1)

The organic light emitting display device as claimed in claim 1, wherein a non-transmissive layer comprises one of a metal through which UV-rays are blocked, a transparent UV-ray protective agent, and an opaque UV-ray protective agent arranged on the under surface of the substrate.

### Claim 13 (depends on 1)

The organic light emitting display device as claimed in claim 1, wherein a non-transmissive layer comprises one of Cr, Cr2O3, Al, Au, Ag, MgO or a silver alloy arranged on the under surface of the substrate.

### Claim 14 (depends on 1)

The organic light emitting display device as claimed in claim 1, further comprising a non-transmissive layer and a magnetic layer arranged on the under surface of the substrate in sequence.

### Claim 15 (depends on 1)

The organic light emitting display device as claimed in claim 1, further comprising a non-transmissive layer, a magnetic layer and an anti-friction layer arranged on the under surface of the substrate in sequence.

### Claim 16 (depends on 1)

The organic light emitting display device as claimed in claim 1, further comprising a non-transmissive layer and an anti-friction layer arranged on the under surface of the substrate in sequence.

### Claim 17 (depends on 16)

The organic light emitting display device as claimed in claim 16, wherein the anti-friction layer has a thickness in a range of 10 μm to 100 μm.

### Claim 18 (depends on 16)

The organic light emitting display device as claimed in claim 16, wherein the anti-friction layer comprises at least one of an organic material or an inorganic material.

### Claim 19 (depends on 1)

The organic light emitting display device as claimed in claim 1, further comprising:
a buffer layer arranged on an under surface of the semiconductor layer;
a gate insulating layer arranged on a top surface of the semiconductor layer;
a gate electrode arranged on a top surface of the gate insulating layer;
an inter-layer dielectric layer arranged on the gate electrode;
a source/drain electrode arranged on the inter-layer dielectric layer;
an insulating layer arranged on the source/drain electrode; and
an organic light emitting diode arranged on the insulating layer.

### Claim 20 (depends on 1)

The organic light emitting display device as claimed in claim 1, further comprising a driver circuit arranged on an outer periphery of the semiconductor layer of a top surface of the substrate.