# US 2018/0323374 A1 · Organic light-emitting display apparatus and method of manufacturing the same

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- Number: US 2018/0323374 A1
- Document ID: US20180323374A1
- Status: Published application
- Kind: A1
- Application number: 16/036,202
- Filed: 2018-07-16
- Published: 2018-11-08
- Earliest claimed: 2015-07-22
- Assignees: Samsung Display Co., Ltd.
- Applicants: Samsung Display Co., Ltd.
- Inventors: Younggil KWON
- Web page: https://patentgrep.com/patent/US20180323374A1

## CPC

- H10K 59/35: comprising red-green-blue [RGB] subpixels
- H10K 50/13: comprising stacked EL layers within one EL unit
- H10K 59/32: Stacked devices having two or more layers, each emitting at different wavelengths
- H10K 59/84: Parallel electrical configurations of multiple OLEDs
- H10K 71/135: {using ink-jet printing}
- H10K 71/15: characterised by the solvent used
- H10K 71/221: {by lift-off techniques}
- H10K 71/233: {by photolithographic etching}
- H10K 59/122: Pixel-defining structures or layers, e.g. banks
- H10K 59/80522: {combined with auxiliary electrodes}
- H10K 2102/3026: {Top emission}
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES

## Abstract

An organic light-emitting display apparatus, including: a first electrode disposed on the substrate; a pixel defining layer covering an edge of the first electrode; a residual layer disposed on the pixel defining layer, the residual layer including a fluoropolymer; a first organic functional layer including a first light emitting layer, the first organic functional layer having a lower surface directly contacting a top surface of the first electrode and a side surface directly contacting the residual layer; and a second electrode disposed on the first organic functional layer.

## Claims

### Claim 1

An organic light-emitting display apparatus, comprising:
a first electrode disposed on the substrate;
a pixel defining layer covering an edge of the first electrode;
a residual layer disposed on the pixel defining layer, the residual layer comprising a fluoropolymer;
a first organic functional layer comprising a first light emitting layer, the first organic functional layer having a lower surface directly contacting a top surface of the first electrode and a side surface directly contacting the residual layer; and
a second electrode disposed on the first organic functional layer.

### Claim 2 (depends on 1)

The organic light-emitting display apparatus of claim 1, wherein the fluoropolymer has a fluorine content in a range of about 20˜60 wt %.

### Claim 3 (depends on 1)

The organic light-emitting display apparatus of claim 1, wherein the fluoropolymer comprises at least one of polytetrafluoroethylene, polychlorotrifluoroethylene, polydichlorodifluoroethylene, a copolymer of chlorotrifluoroethylene and dichlorodifluoroethylene, a copolymer of tetrafluoroethylene andperfluoroalkylvinylether, a copolymer of chlorotrifluoroethylene and perfluoroalkylvinylether, a copolymer of tetrafluoroethylene and perfluoroalkylvinylether, and a copolymer of chlorotrifluoroethylene and perfluoroalkylvinylether.

### Claim 4 (depends on 1)

The organic light-emitting display apparatus of claim 1, wherein a thickness of the residual layer is equal to or greater than about 0.5 nm and equal to or less than about 5 nm.

### Claim 5 (depends on 1)

The organic light-emitting display apparatus of claim 1, wherein the organic functional layer comprises at least one functional layer of a hole injection layer, a hole transport layer, an electro transport layer, and an electron injection layer.

### Claim 6

An organic light-emitting display apparatus, comprising:
a first first electrode disposed on the substrate;
a second first electrode disposed separate from the first first electrode;
a pixel defining layer covering an edge of the first first electrode and the second first electrode;
a residual layer disposed on the pixel defining layer, the residual layer comprising a fluoropolymer;
a first organic functional layer comprising a first light emitting layer, the first organic functional layer having a lower surface directly contacting a top surface of the first electrode and a side surface directly contacting the residual layer;
a second organic functional layer comprising a second light emitting layer, the second organic functional layer having a lower surface directly contacting a top surface of the second first electrode and a side surface directly contacting the residual layer; and
a second electrode commonly disposed on the first organic functional layer and second organic functional layer.

### Claim 7 (depends on 6)

The organic light-emitting display apparatus of claim 6, wherein a first color of light emitted from the first light emitting layer is different from a second color of light emitted from the second light emitting layer.

### Claim 8 (depends on 6)

The organic light-emitting display apparatus of claim 6, further comprising;
a first auxiliary cathode disposed between the first organic functional layer and the second electrode; and
a second auxiliary cathode disposed between the second organic functional layer and the second electrode.

### Claim 9 (depends on 8)

The organic light-emitting display apparatus of claim 8, wherein the first auxiliary cathode and the second auxiliary cathode directly contact the second electrode.

### Claim 10 (depends on 6)

The organic light-emitting display apparatus of claim 6, wherein the second electrode is integrally disposed on the first organic functional layer and second organic functional layer.