# US 10,504,937 B2 · Display device

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- Number: US 10,504,937 B2
- Document ID: US10504937B2
- Status: Granted
- Kind: B2
- Application number: 16/136,486
- Filed: 2018-09-20
- Published: 2019-01-31
- Granted: 2019-12-10
- Earliest claimed: 2015-06-26
- Assignees: Samsung Display Co., Ltd.
- Applicants: Samsung Display Co., Ltd.
- Inventors: Jun Won Choi; So Young Lee
- Web page: https://patentgrep.com/patent/US10504937B2

## CPC

- H10D 86/60: wherein the TFTs are in active matrices
- H10D 86/441: {Interconnections, e.g. scanning lines}
- H10D 86/443: {adapted for preventing breakage, peeling or short circuiting}
- H10D: INORGANIC ELECTRIC SEMICONDUCTOR DEVICES

## Abstract

A display device is disclosed. In one aspect, the display device includes a substrate, a first signal line formed over the substrate and a first insulating layer formed over the substrate and the first signal line. The display device also includes a second signal line formed over the first insulating layer and including an overlapping area that overlaps the first signal line, a second insulating layer formed over the second signal line and having a via hole that exposes at least a part of the overlapping area. The display device further includes an auxiliary wiring layer covering the via hole and connected to the overlapping area through the via hole.

## Claims

### Claim 1

A display device, comprising:
a substrate;
a first wire on the substrate;
a second wire crossing and on the first wire;
an auxiliary layer at least partially overlapping a region where the first wire and the second wire overlap each other; and
a first insulating layer between the second wire and the auxiliary layer,
wherein the auxiliary layer is in contact with the second wire through a hole that is formed in the first insulating layer and overlaps the region.

### Claim 2 (depends on 1)

The display device of claim 1, wherein the first wire includes a driving voltage line.

### Claim 3 (depends on 1)

The display device of claim 1, wherein the second wire includes a data line.

### Claim 4 (depends on 1)

The display device of claim 1, further comprising:
a transistor including a semiconductor layer, a gate electrode, a source electrode, and a drain electrode,
wherein the first wire is in a same layer as the gate electrode.

### Claim 5 (depends on 4)

The display device of claim 4, wherein the second wire is in a same layer as the source electrode and the drain electrode.

### Claim 6 (depends on 5)

The display device of claim 5, further comprising:
a pixel electrode on the first insulating layer,
wherein the auxiliary layer is in a same layer as the pixel electrode.

### Claim 7 (depends on 6)

The display device of claim 6, wherein the auxiliary layer and the pixel electrode contact the first insulating layer.

### Claim 8 (depends on 6)

The display device of claim 6, further comprising:
a second insulating layer between the substrate and the first wire,
wherein the first wire and the gate electrode contact the second insulating layer.

### Claim 9 (depends on 8)

The display device of claim 8, further comprising:
a third insulating layer on the first wire,
wherein the first wire and the gate electrode contact the third insulating layer.

### Claim 10 (depends on 9)

The display device of claim 9, further comprising:
a fourth insulating layer on the third insulating layer,
wherein the second wire, the source electrode, the drain electrode contact the fourth insulating layer.

### Claim 11 (depends on 1)

The display device of claim 1, wherein:
the substrate includes a display area to display an image and a peripheral area adjacent to the display area, and
the region is in the peripheral area.

### Claim 12 (depends on 11)

The display device of claim 11, wherein the second wire is in both the display area and the peripheral area.

### Claim 13

A display device, comprising:
a first signal line;
a second signal line crossing and insulated from the first signal line;
an insulating layer over the first signal line and the second signal line; and
a conductive layer over the insulating layer,
wherein the conductive layer is connected to one of the first signal line and the second signal line through a hole defined in the insulating layer, wherein the hole overlaps a region where the first signal line and the second signal line overlap each other.

### Claim 14 (depends on 13)

The display device of claim 13, wherein one of the first signal line and the second signal line is to transmit a driving voltage.

### Claim 15 (depends on 13)

The display device of claim 13, wherein a width of the conductive layer is larger than at least one of the first signal line and the second signal line.

### Claim 16 (depends on 13)

The display device of claim 13, further comprising:
a transistor including a semiconductor layer, a gate electrode, a source electrode, and a drain electrode,
wherein one of the first signal line and the second signal line is in a same layer as the gate electrode, and the other of the first signal line and the second signal line is disposed as the source electrode and the drain electrode.

### Claim 17 (depends on 16)

The display device of claim 16, wherein the gate electrode is on the semiconductor layer, and the source electrode and the drain electrode are on the gate electrode.

### Claim 18 (depends on 13)

The display device of claim 13, wherein the conductive layer contacts an upper surface of the insulating layer, and the one of the first signal line and the second signal line contacts a lower surface of the insulating layer.

### Claim 19 (depends on 13)

The display device of claim 13, further comprising:
a substrate on which the first signal line, the second signal line, the insulating layer, and the conductive layer are disposed,
wherein the substrate includes a display area to display an image and a peripheral area adjacent to the display area, and
wherein the conductive layer is in the peripheral area.