# US 10,770,681 B2 · Organic light-emitting display apparatus

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- Number: US 10,770,681 B2
- Document ID: US10770681B2
- Status: Granted
- Kind: B2
- Application number: 15/937,305
- Filed: 2018-03-27
- Published: 2018-10-04
- Granted: 2020-09-08
- Earliest claimed: 2017-03-31
- Assignees: Samsung Display Co., Ltd.
- Applicants: Samsung Display Co., Ltd.
- Inventors: Jieun Lee; Wonkyu Kwak; Kwangmin Kim; Kiwook Kim; Dongsoo Kim; Joongsoo Moon; Hyunae Park; Changkyu Jin
- Web page: https://patentgrep.com/patent/US10770681B2

## CPC

- H10K 59/131: Interconnections, e.g. wiring lines or terminals
- H10K 59/122: Pixel-defining structures or layers, e.g. banks
- H10K 59/8722: {Peripheral sealing arrangements, e.g. adhesives, sealants}
- H10K 59/8731: {multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers}
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES

## Abstract

An organic light-emitting display apparatus includes a substrate having a display area displaying an image and a periphery area. The periphery area is located next to the display area. A first organic insulating layer is disposed on the substrate. The first organic insulating layer includes a valley portion separating the first organic insulating layer from the periphery area. A plurality of organic light-emitting devices is disposed on the substrate. Each of the organic light-emitting devices includes a first electrode, an emission layer, and a second electrode, sequentially disposed over the first organic insulating layer. The second electrode covers the emission layer and the valley portion. A second organic insulating layer is disposed over the first organic insulating layer and includes a first opening exposing a center portion of the first electrode and a second opening overlapping the valley portion. A capping layer covers the second electrode.

## Claims

### Claim 1

An organic light-emitting display apparatus comprising:
a substrate having a display area, within which an image is displayed, and a periphery area, within which no image is displayed, located next to or surrounding the display area;
a first organic insulating layer disposed on the substrate within the display area and the periphery area, and comprising a valley portion separating the first organic insulating layer from the periphery area;
a plurality of organic light-emitting devices disposed on the substrate, each of the plurality of organic light-emitting devices comprising, in the display area, a first electrode, an emission layer, and a second electrode, which are sequentially disposed over the first organic insulating layer, wherein the second electrode covers the emission layer and the valley portion;
a second organic insulating layer disposed over the first organic insulating layer in the display area and the periphery area, and comprising a first opening exposing a center portion of the first electrode and a second opening overlapping the valley portion; and
a capping layer covering the second electrode.

### Claim 2 (depends on 1)

The organic light-emitting display apparatus of claim 1, further comprising a first power supply line disposed in the periphery area and supplying power to the plurality of organic light-emitting devices,
wherein the valley portion is disposed between the display area and the first power supply line.

### Claim 3 (depends on 2)

The organic light-emitting display apparatus of claim 2, further comprising a connection conductive layer disposed in the periphery area and electrically connecting the second electrode and the first power supply line.

### Claim 4 (depends on 3)

The organic light-emitting display apparatus of claim 3, wherein the connection conductive layer covers the valley portion.

### Claim 5 (depends on 4)

The organic light-emitting display apparatus of claim 4, wherein, in the valley portion, the connection conductive layer and the second electrode directly contact each other.

### Claim 6 (depends on 3)

The organic light-emitting display apparatus of claim 3, wherein the connection conductive layer covers a part of the first power supply line.

### Claim 7 (depends on 3)

The organic light-emitting display apparatus of claim 3, wherein the connection conductive layer comprises a same material as the first electrode.

### Claim 8 (depends on 3)

The organic light-emitting display apparatus of claim 3, wherein the connection conductive layer comprises a plurality of third openings exposing a top surface of the first organic insulating layer.

### Claim 9 (depends on 8)

The organic light-emitting display apparatus of claim 8, wherein the second organic insulating layer comprises a plurality of fourth openings exposing a top surface of the connection conductive layer.

### Claim 10 (depends on 8)

The organic light-emitting display apparatus of claim 8, wherein the second electrode contacts the connection connective layer through the plurality of fourth openings.

### Claim 11 (depends on 1)

The organic light-emitting display apparatus of claim 1, wherein the valley portion is arranged to surround a part of the display area.

### Claim 12 (depends on 1)

The organic light-emitting display apparatus of claim 1, further comprising a second power supply line disposed in the periphery area, located so as not to overlap the first power supply line, and supplying power to the plurality of organic light-emitting devices.

### Claim 13 (depends on 12)

The organic light-emitting display apparatus of claim 12, wherein an end of the second electrode is arranged outside of the valley portion, wherein a distance between the end of the second electrode and the outside of the valley portion in a region corresponding to a corner of the display area is smaller than a distance between the end of the second electrode and the outside of the valley portion in a region other than the region corresponding to the corner of the display area.

### Claim 14 (depends on 12)

The organic light-emitting display apparatus of claim 12, wherein the valley portion is concave towards the display area, in a region corresponding to a corner of the display area.

### Claim 15 (depends on 12)

The organic light-emitting display apparatus of claim 12, wherein the second electrode protrudes away from the display area, in a region corresponding to a corner of the display area.

### Claim 16 (depends on 1)

The organic light-emitting display apparatus of claim 1, wherein the capping layer comprises an organic material.

### Claim 17 (depends on 1)

The organic light-emitting display apparatus of claim 1, further comprising an encapsulation member disposed over the capping layer and encapsulating the display area.
