# US 2024/0206253 A1 · Display apparatus

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- Number: US 2024/0206253 A1
- Document ID: US20240206253A1
- Status: Published application
- Kind: A1
- Application number: 18/324,046
- Filed: 2023-05-25
- Published: 2024-06-20
- Earliest claimed: 2022-12-15
- Assignees: LG Display Co., Ltd.
- Applicants: LG Display Co., Ltd
- Inventors: Yeoun-jei JUNG; Dong-Hun JUNG
- Web page: https://patentgrep.com/patent/US20240206253A1

## CPC

- H10K 59/131: Interconnections, e.g. wiring lines or terminals
- G09G 3/3233: with pixel circuitry controlling the current through the light-emitting element
- G09G 2300/0842: forming a memory circuit, e.g. a dynamic memory with one capacitor
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES
- G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00)

## Abstract

A display apparatus comprises a display panel having a display area configured to display an image and a non-display area around the display area, a low potential voltage line in the non-display area, and a high potential voltage line between the display area and the low potential voltage line.

## Claims

### Claim 1

A display apparatus comprising:
a display panel having a display area configured to display an image and a non-display area around the display area;
a low potential voltage line din the non-display area; and
a high potential voltage line between the display area and the low potential voltage line.

### Claim 2 (depends on 1)

The display apparatus of claim 1, wherein the display panel includes:
a thin film transistor, the thin film transistor comprising:
a semiconductor pattern on a substrate in the display area,
a gate insulating layer on the semiconductor pattern,
a gate electrode on the gate insulating layer,
an interlayer insulating layer on the gate electrode, and
a source electrode and a drain electrode on the interlayer insulating layer; and
a light emitting device over the thin film transistor.

### Claim 3 (depends on 2)

The display apparatus of claim 2, wherein the high potential voltage line includes a first metal layer on the interlayer insulating layer.

### Claim 4 (depends on 2)

The display apparatus of claim 2, wherein the high potential voltage line includes a first metal layer on the interlayer insulating layer and the low potential voltage line includes a second metal layer on the interlayer insulating layer.

### Claim 5 (depends on 4)

The display apparatus of claim 4, further comprising:
an insulating layer over the thin film transistor; and
a connection layer on the insulating layer, the connection layer connecting the drain electrode of the thin film transistor to the light emitting device.

### Claim 6 (depends on 5)

The display apparatus of claim 5, wherein the high potential voltage line further includes a third metal layer on the insulating layer and the low potential voltage line further includes a fourth metal layer on the insulating layer.

### Claim 7 (depends on 6)

The display apparatus of claim 6, wherein the first metal layer is electrically connected to the third metal layer and the second metal layer is electrically connected to the fourth metal layer.

### Claim 8 (depends on 2)

The display apparatus of claim 2, further comprising a cover layer formed on the high potential voltage line and the low potential voltage line.

### Claim 9 (depends on 8)

The display apparatus of claim 8, wherein the cover layer is formed in an entire area of the substrate.

### Claim 10 (depends on 8)

The display apparatus of claim 8, wherein the cover layer comprises an inorganic insulating material.

### Claim 11 (depends on 2)

The display apparatus of claim 2, wherein the light emitting device comprises a tandem structure in which a plurality of organic light emitting devices are stacked in series.

### Claim 12 (depends on 11)

The display apparatus of claim 11, wherein the tandem structure includes:
a plurality of organic light emitting devices; and
a charge generating layer between the plurality of organic light emitting devices.

### Claim 13

A display apparatus, comprising:
a display panel having a display area configured to display an image and a pad area around the display area;
a low potential voltage line in the pad area; and
a high potential voltage line between the display area and the low potential voltage line in the pad area.

### Claim 14 (depends on 13)

The display apparatus of claim 13, wherein the pad area is in a lower end portion of the display area.