# US 12,120,928 B2 · Organic light-emitting display apparatus

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- Number: US 12,120,928 B2
- Document ID: US12120928B2
- Status: Granted
- Kind: B2
- Application number: 17/873,087
- Filed: 2022-07-25
- Published: 2022-11-10
- Granted: 2024-10-15
- Earliest claimed: 2014-01-06
- Assignees: Samsung Display Co., Ltd.
- Applicants: Samsung Display Co., Ltd.
- Inventors: Won-Kyu Kwak; Han-Sung Bae; Sun-Youl Lee
- Web page: https://patentgrep.com/patent/US12120928B2

## CPC

- H10K 59/122: Pixel-defining structures or layers, e.g. banks
- H10K 59/1213: {the pixel elements being TFTs}
- H10K 59/124: Insulating layers formed between TFT elements and OLED elements
- H10K 59/127: comprising two substrates, e.g. display comprising OLED array and TFT driving circuitry on different substrates
- H10K 59/131: Interconnections, e.g. wiring lines or terminals
- H10K 59/8722: {Peripheral sealing arrangements, e.g. adhesives, sealants}
- H10K 59/873: {Encapsulations}
- H10K 59/87: {Passivation; Containers; Encapsulations}
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES

## Abstract

An organic light-emitting display apparatus includes: a first substrate; an insulating layer on the first substrate; a signal wiring on the insulating layer; an organic light-emitting device on the first substrate, the organic light-emitting device defining an active area and including a first electrode, a second electrode, and an intermediate layer between the first and second electrodes; a passivation layer on the insulating layer; and a metal layer on the passivation layer at an outer region adjacent to the active area, separated from the first electrode, and contacting the second electrode and the signal wiring, wherein a first opening is in the passivation layer at the outer region, and the metal layer contacts the insulating layer at the first opening.

## Claims

### Claim 1

A light-emitting display apparatus comprising:
a substrate;
a first insulating layer on the substrate;
a signal wiring on the first insulating layer;
a second insulating layer on the substrate and including a first opening or groove, the second insulating layer being separated by the first opening or groove;
a conductive layer on a top surface of the second insulating layer, the conductive layer directly contacting the first insulating layer inside the first opening or groove;
a light-emitting device on the second insulating layer, the light-emitting device defining an active area and comprising;
a first electrode,
a second electrode disposed on the conductive layer and extending outside the first opening or groove, the second electrode being in direct contact with the conductive layer inside the first opening or groove, and
an intermediate layer between the first and second electrodes;
a third insulating layer covering a part of the first electrode; and
a circuit unit located below the second insulating layer and outside the active area, the circuit unit comprising a plurality of thin-film transistors.

### Claim 2 (depends on 1)

The light-emitting display apparatus of claim 1, wherein the second insulating layer comprises a second opening or groove, and wherein the first opening or groove and the second electrode overlap in a plan view.

### Claim 3 (depends on 1)

The light-emitting display apparatus of claim 1, wherein the second insulating layer comprises a second opening or groove, and wherein the first opening or groove and the conductive layer overlap in a plan view.

### Claim 4 (depends on 1)

The light-emitting display apparatus of claim 1, wherein the first opening or groove, the second electrode and the conductive layer overlap in a plan view.

### Claim 5 (depends on 1)

The light-emitting display apparatus of claim 1, wherein the first opening or groove is in the second insulating layer outside the active area.

### Claim 6 (depends on 1)

The light-emitting display apparatus of claim 1, wherein the conductive layer comprises a same material as that of the first electrode.

### Claim 7 (depends on 1)

The light-emitting display apparatus of claim 1, wherein the conductive layer overlaps the signal wiring in a plan view.

### Claim 8 (depends on 1)

The light-emitting display apparatus of claim 1, wherein the conductive layer comprises a plurality of second openings or grooves.

### Claim 9 (depends on 8)

The light-emitting display apparatus of claim 8, wherein centers of each of the plurality of second openings or grooves are arranged on a straight line.

### Claim 10 (depends on 8)

The light-emitting display apparatus of claim 8, wherein the plurality of second openings or grooves are arranged at an interval.

### Claim 11 (depends on 1)

The light-emitting display apparatus of claim 1, wherein an edge of the third insulating layer is closer to the active area than an edge of the second electrode.

### Claim 12 (depends on 1)

The light-emitting display apparatus of claim 1, wherein the signal wiring is a power supply line electrically connected to the second electrode and supplying a signal to the second electrode.

### Claim 13 (depends on 1)

The light-emitting display apparatus of claim 1, wherein the signal wiring is in direct contact with the conductive layer, and the conductive layer is in direct contact with the second electrode.

### Claim 14

A light-emitting display apparatus comprising:
a substrate;
a first insulating layer on the substrate;
a signal wiring on the first insulating layer;
a second insulating layer on the substrate and including a first opening or groove, the second insulating layer being separated by the first opening or groove;
an organic light-emitting device on the second insulating layer, the organic light-emitting device defining an active area and comprising a first electrode, a second electrode, and an intermediate layer between the first and second electrodes;
a conductive layer on an upper surface of the second insulating layer outside the active area, the conductive layer contacting the first insulating layer at the first opening or groove in a direction perpendicular to the substrate, the conductive layer directly contacting the first insulating layer inside the first opening or groove;
a third insulating layer covering a part of the first electrode; and
a circuit unit located below the second insulating layer and outside the active area, the circuit unit comprising a plurality of thin-film transistors.

### Claim 15 (depends on 14)

The light-emitting display apparatus of claim 14, wherein, in a plan view, the second electrode and the conductive layer overlap each other at the first opening or groove.

### Claim 16 (depends on 14)

The light-emitting display apparatus of claim 14, wherein the first opening or groove is in the second insulating layer outside the active area.

### Claim 17 (depends on 14)

The light-emitting display apparatus of claim 14, wherein the conductive layer comprises a same material as that of the first electrode.

### Claim 18 (depends on 14)

The light-emitting display apparatus of claim 14, wherein the conductive layer overlaps the signal wiring in a plan view.

### Claim 19

A light-emitting display apparatus comprising:
a substrate;
a first insulating layer on the substrate;
a signal wiring on the first insulating layer;
a second insulating layer on the substrate and including a first opening or groove, the second insulating layer being separated by the first opening or groove;
an organic light-emitting device on the second insulating layer, the organic light-emitting device defining an active area and comprising a first electrode, a second electrode, and an intermediate layer between the first and second electrodes;
a conductive layer on an upper surface of the second insulating layer outside the active area, the conductive layer being in conformal and direct contact with the second electrode within the first opening or groove, the conductive layer directly contacting the first insulating layer inside the first opening or groove;
a third insulating layer covering a part of the first electrode; and
a circuit unit located below the second insulating layer and outside the active area, the circuit unit comprising a plurality of thin-film transistors.

### Claim 20 (depends on 1)

The light-emitting display apparatus of claim 1, wherein the third insulating layer does not extend into the first opening or groove.
