# US 12,010,880 B2 · Display device capable of minimizing outgassing from insulating layers

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- Number: US 12,010,880 B2
- Document ID: US12010880B2
- Status: Granted
- Kind: B2
- Application number: 17/210,607
- Filed: 2021-03-24
- Published: 2022-01-27
- Granted: 2024-06-11
- Earliest claimed: 2020-07-23
- Assignees: Samsung Display Co., Ltd.
- Applicants: Samsung Display Co., Ltd.
- Inventors: Seong-Min Kim; Jin Koo Chung; Hyeon Sik Kim
- Web page: https://patentgrep.com/patent/US12010880B2

## CPC

- H10K 59/131: Interconnections, e.g. wiring lines or terminals
- H10K 59/122: Pixel-defining structures or layers, e.g. banks
- H10K 59/123: Connection of the pixel electrodes to the thin film transistors [TFT]
- H10K 59/124: Insulating layers formed between TFT elements and OLED elements
- H10K 59/8792: {comprising light absorbing layers, e.g. black layers}
- H10K 59/1315: {comprising structures specially adapted for lowering the resistance}
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES

## Abstract

An exemplary embodiment of the present inventive concept provides a display device including: a substrate; a plurality of first wires extending along a first direction on the substrate; a first insulating layer disposed on the plurality of first wires; a plurality of second wires disposed on the first insulating layer and extending along a second direction crossing the first direction; a second insulating layer disposed on the plurality of second wires; and a plurality of pixel electrodes disposed on the second insulating layer, wherein the second insulating layer includes a first opening which is disposed between the plurality of pixel electrodes.

## Claims

### Claim 1

A display device comprising:
a substrate;
a plurality of first wires extending along a first direction on the substrate;
a first insulating layer disposed on the plurality of first wires;
a plurality of second wires disposed on the first insulating layer and extending along a second direction crossing the first direction;
a second insulating layer disposed on the plurality of second wires; and
a plurality of pixel electrodes disposed on the second insulating layer,
wherein the second insulating layer includes a plurality of first removed regions each extending along the second direction, a length of each of the plurality of first removed regions along the second direction being longer than a length of at least one of the plurality of pixel electrodes along the second direction and a width of each of the plurality of first removed regions along the first direction being shorter than a width of at least one of the plurality of pixel electrodes along the first direction.

### Claim 2 (depends on 1)

The display device of claim 1, wherein the plurality of second wires overlap the plurality of pixel electrodes, respectively, in a plan view and each of the plurality of first removed regions is disposed in an area disposed between the plurality of pixel electrodes that are adjacent to each other in the first direction.

### Claim 3 (depends on 1)

The display device of claim 1, wherein the plurality of pixel electrodes include:
a plurality of first pixel electrodes and a plurality of second pixel electrodes disposed in a first column along the second direction, and
a plurality of third pixel electrodes disposed in a second column along the second direction, and
wherein the plurality of first removed regions are disposed between the first column and the second column disposed adjacent to each other.

### Claim 4 (depends on 1)

The display device of claim 1, wherein the first insulating layer is disposed to overlap the plurality of first wires in a plan view, and includes a second removed region disposed between adjacent first wires that are adjacent to each other in the second direction.

### Claim 5 (depends on 4)

The display device of claim 4, wherein the second removed region extends along the first direction.

### Claim 6 (depends on 4)

The display device of claim 4, wherein the first insulating layer includes a disconnected portion in an area corresponding to the plurality of first removed regions of the second insulating layers.

### Claim 7 (depends on 6)

The display device of claim 6, wherein the first insulating layer includes a plurality of islands that are spaced apart from each other along the first direction.

### Claim 8 (depends on 6)

The display device of claim 6, further comprising a passivation layer disposed between the plurality of first wires and the first insulating layer.

### Claim 9 (depends on 1)

The display device of claim 1, wherein the plurality of first wires serve as scan lines for transferring scan signals and the plurality of second wires serve as data lines for transferring data voltages or driving voltage lines for transferring driving voltages.

### Claim 10 (depends on 1)

The display device of claim 1, wherein each thickness of the first insulating layer and the second insulating layers are in a range of 10,000 Å to 16,000 Å.

### Claim 11 (depends on 1)

The display device of claim 1, further comprising a partition wall disposed on the plurality of pixel electrodes,
wherein the partition wall has an opening exposing the plurality of pixel electrodes and a portion of the partition wall protrudes to constitute a spacer.

### Claim 12 (depends on 11)

The display device of claim 11, wherein the partition wall includes a black material.

### Claim 13 (depends on 1)

The display device of claim 1, wherein the first insulating layer or the second insulating layers include a black material.

### Claim 14 (depends on 1)

The display device of claim 1, wherein the first insulating layer or the second insulating layer include siloxane.

### Claim 15

A display device comprising:
a substrate;
a plurality of first wires extending along a first direction on the substrate;
a plurality of first insulating layers disposed on the plurality of first wires;
a plurality of second wires disposed on the plurality of first insulating layers and extending along a second direction crossing the first direction;
a second insulating layer disposed on the plurality of second wires; and
a plurality of pixel electrodes disposed on the second insulating layer,
wherein the plurality of first insulating layers are spaced apart and isolated from each other in the second direction and a width of the first insulating layers along the second direction is smaller than a space between adjacent first insulating layers along the second direction.

### Claim 16 (depends on 15)

The display device of claim 15, wherein each of the plurality of first insulating layers includes a disconnected portion.

### Claim 17 (depends on 15)

The display device of claim 15, wherein the second insulating layer is disposed to overlap the plurality of first wires and the plurality of second wires in a plan view.

### Claim 18 (depends on 15)

The display device of claim 15, wherein the plurality of first wires serve as scan lines for transferring scan signals and the plurality of second wires serve as data lines for transferring data voltages or driving voltage lines for transferring driving voltages.

### Claim 19

A display device comprising:
a plurality of first wires extending along a first direction on a substrate;
a first insulating layer disposed on the plurality of first wires;
a plurality of second wires disposed on the first insulating layer and extending along a second direction crossing the first direction;
a second insulating layer disposed on the plurality of second wires; and
a plurality of pixel electrodes disposed on the second insulating layer,
wherein the second insulating layer including a plurality of removed regions each extending along the second direction, a length of each of the plurality of first removed regions along the second direction being longer than a length of at least one of the plurality of pixel electrodes along the second direction, and a width of each of the plurality of first removed regions along the first direction being shorter than a width of at least one of the plurality of pixel electrodes along the first direction.

### Claim 20 (depends on 19)

The display device of claim 19, wherein the plurality of second wires are disposed to overlap the plurality of pixel electrodes in a plan view and the plurality of removed regions is disposed between the plurality of pixel electrodes that are adjacent to each other in the first direction.

### Claim 21 (depends on 20)

The display device of claim 20, wherein the first insulating layer is disposed to overlap the plurality of first wires in a plan view and has a removed portion extending along the first direction between adjacent first wires.

### Claim 22 (depends on 21)

The display device of claim 21, wherein the first insulating layer extends along the first direction.

### Claim 23 (depends on 21)

The display device of claim 21, wherein the first insulating layer is removed at an area that is overlapped with the plurality of removed regions of the second insulating layers.

### Claim 24 (depends on 19)

The display device of claim 19, wherein the plurality of first wires serve as scan lines for transferring scan signals and the plurality of second wires serve as data lines for transferring data voltages or driving voltage lines for transferring driving voltages.