# US 9,437,843 B2 · Organic light emitting diode display device and method of manufacturing the same

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- Number: US 9,437,843 B2
- Document ID: US9437843B2
- Status: Granted
- Kind: B2
- Application number: 13/967,190
- Filed: 2013-08-14
- Published: 2013-12-12
- Granted: 2016-09-06
- Earliest claimed: 2008-10-23
- Assignees: Samsung Display Co., Ltd.
- Applicants: Samsung Display Co., Ltd.
- Inventors: Min-Chul Suh
- Web page: https://patentgrep.com/patent/US9437843B2

## CPC

- H10K 59/122: Pixel-defining structures or layers, e.g. banks
- H10K 71/162: {using laser ablation}
- H10K 71/40: Thermal treatment, e.g. annealing in the presence of a solvent vapour
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES

## Abstract

The OLED display device includes a substrate, a first electrode located on the substrate, a pixel defining layer located on the first electrode to expose a part of the first electrode, a fluorine-based polymer layer located on the pixel defining layer, an organic layer located on the first electrode, and a second electrode located on the entire surface of the substrate. The method of manufacturing the OLED display device includes forming a first electrode on a substrate, forming a pixel defining layer on the first electrode, forming a fluorine-based polymer layer on the pixel defining layer, patterning the fluorine-based polymer layer and the pixel defining layer by laser ablation to open a part of the first electrode, forming an organic layer on the opened first electrode, and forming a second electrode on the entire surface of the substrate.

## Claims

### Claim 1

A method of manufacturing an organic light emitting diode (OLED) display device, comprising:
providing a substrate;
forming a first electrode on the substrate;
forming a pixel defining layer on substrate to entirely cover the first electrode;
forming a fluorine-based polymer layer on the pixel defining layer, the fluorine-based polymer layer being composed of a hydrophobic material;
forming an opening in the pixel defining layer and forming an opening in the fluorine-based polymer layer to expose a part of the first electrode, the opening of the fluorine-based polymer layer interconnecting to the opening of the pixel-defining layer to expose a part of the first electrode, the first electrode covering the opening of the pixel-defining layer, a surface of the first electrode exposed through the opening of the pixel-defining layer being hydrophilic;
forming an organic layer on the exposed part of the first electrode, the opening of the fluorine-based polymer layer filled with the organic layer, the organic layer being internally contiguous, the organic layer contacting the fluorine-based polymer layer; and
forming a second electrode on the organic layer and the fluorine-based polymer layer, the organic layer forming a contact lip, the contact lip lying between the fluorine-based polymer layer and the second electrode.

### Claim 2 (depends on 1)

The method of claim 1, the formation of the opening in the pixel defining layer and the fluorine-based polymer layer comprising patterning the pixel defining layer and the fluorine-based polymer layer by laser ablation.

### Claim 3 (depends on 2)

The method of claim 2, the laser being irradiated at an intensity of about 300 mW/cm2 or more.

### Claim 4 (depends on 1)

The method of claim 1, the pixel defining layer being formed using a photoresist material.

### Claim 5 (depends on 1)

The method of claim 1, the fluorine-based polymer layer being formed using at least one of the compounds represented by Formulae 1 to 3:
n being an integer of from about 50 to about 1,000;
m being an integer of from about 50 to about 1,000, and n being an integer of from about 50 to about 1,000; and
n being an integer of from about 50 to about 1,000.

### Claim 6 (depends on 5)

The method of claim 5, the fluorine-based polymer layer comprising a compound represented by Formula 1.

### Claim 7 (depends on 5)

The method of claim 5, the fluorine-based polymer layer comprising a compound represented by Formula 2.

### Claim 8 (depends on 5)

The method of claim 5, the fluorine-based polymer layer comprising a compound represented by Formula 3.

### Claim 9 (depends on 1)

The method of claim 1, the fluorine-based polymer layer being formed to have a thickness of from about 100 Å to about 3,000 Å.