# US 8,784,150 B2 · Light emitting display and method of manufacturing the same

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 8,784,150 B2
- Document ID: US8784150B2
- Status: Granted
- Kind: B2
- Application number: 13/709,850
- Filed: 2012-12-10
- Published: 2013-04-18
- Granted: 2014-07-22
- Earliest claimed: 2007-06-28
- Assignees: Samsung Display Co., Ltd.
- Applicants: Samsung Display Co., Ltd.
- Inventors: Min-ho Oh; Yoon-Hyeung Cho; Byoung-duk Lee; So-young Lee; Sun-young Lee; Won-jong Kim; Yong-tak Kim; Jin-baek Choi; Jong-hyuk Lee; Seung-han Lee
- Web page: https://patentgrep.com/patent/US8784150B2

## CPC

- H10K 59/8722: {Peripheral sealing arrangements, e.g. adhesives, sealants}
- H10H 20/01: Manufacture or treatment
- H10K 59/12: Active-matrix OLED [AMOLED] displays
- H10K 71/421: {using coherent electromagnetic radiation, e.g. laser annealing}
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10H: INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS

## Abstract

The present invention is to provide an organic light emitting display and a method of manufacturing the same, the light emitting display including: a first substrate on which a plurality of light emitting devices are formed; a second substrate disposed to face the first substrate; a dam member disposed between the first substrate and the second substrate to surround the plurality of light emitting devices; an inorganic sealing material disposed between the first substrate and the second substrate on an outward side of the dam member and attaching the first substrate and the second substrate; and a filling material provided between the first substrate and the second substrate on an inward side of the dam member and formed of at least one inert liquid selected from the group consisting of perfluorocarbon and fluorinert.

## Claims

### Claim 1

A method of manufacturing a light emitting display comprising:
providing a first substrate on which a plurality of light emitting devices are formed;
providing a second substrate;
forming a sealing material along an edge of the second substrate;
forming a dam member on the second substrate on an inward side of the sealing material to surround the plurality of light emitting devices;
dropping a filling material to an inward side of the dam member, the filling material being formed of at least one inert liquid selected from the group consisting of perfluorocarbon and fluorinert;
disposing the first substrate and the second substrate to face each other; and
attaching the inorganic sealing material to the first substrate and the second substrate to seal the plurality of light emitting devices.

### Claim 2 (depends on 1)

The method as claimed in claim 1, wherein the forming the inorganic sealing material comprises:
applying frit paste; and
drying or annealing the applied frit paste.

### Claim 3 (depends on 1)

The method as claimed in claim 1, wherein the forming the dam member comprises:
applying frit paste; and
drying or annealing the applied frit paste and hardening the frit paste.

### Claim 4 (depends on 1)

The method as claimed in claim 1, wherein the dam member is formed to be in contact with the inorganic sealing material.

### Claim 5 (depends on 1)

The method as claimed in claim 1, wherein the forming the dam member comprises:
applying a liquid organic material to be separated from the inorganic sealing material; and
pre-hardening the applied liquid organic material.

### Claim 6 (depends on 1)

The method as claimed in claim 1, wherein the disposing the first substrate and the second substrate to face each other is performed at a pressure lower than atmospheric pressure.

### Claim 7 (depends on 1)

The method as claimed in claim 1, further comprising compressing the first substrate and the second substrate so that the filling material fills a space between the first substrate and the second substrate on the inward side of the dam member.

### Claim 8 (depends on 1)

The method as claimed in claim 1, wherein the sealing the light emitting devices further comprises attaching the first substrate to the second substrate by melting the inorganic sealing material.

### Claim 9 (depends on 8)

The method as claimed in claim 8, wherein the inorganic sealing material is melted by a laser or infrared rays.