# US 12,113,154 B2 · Display device and manufacturing method thereof

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- Number: US 12,113,154 B2
- Document ID: US12113154B2
- Status: Granted
- Kind: B2
- Application number: 17/387,479
- Filed: 2021-07-28
- Published: 2022-06-30
- Granted: 2024-10-08
- Earliest claimed: 2020-12-30
- Assignees: Samsung Display Co., Ltd.
- Applicants: Samsung Display Co., LTD.
- Inventors: Su Jeong Kim; Yi Seop Shim; Yun Ho Lee
- Web page: https://patentgrep.com/patent/US12113154B2

## CPC

- H10H 20/8316: {Multi-layer electrodes comprising at least one discontinuous layer}
- H10H 20/01: Manufacture or treatment
- H10H 29/142: {Two-dimensional arrangements, e.g. asymmetric LED layout}
- H10W 90/00: Package configurations
- H10H 20/032: {of electrodes}
- H10H 20/819: characterised by their shape, e.g. curved or truncated substrates
- H10H: INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
- H10W: GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10

## Abstract

A display device includes a substrate including pixels; a first electrode and a second electrode that are spaced apart from each other on the substrate; a light emitting element disposed between the first electrode and the second electrode; a first connection electrode electrically contacting the first electrode and a first end of the light emitting element; a second connection electrode electrically contacting the second electrode and another end of the light emitting element; and an organic pattern disposed between the first connection electrode and the second connection electrode and on the light emitting element. The organic pattern tapers toward the light emitting element.

## Claims

### Claim 1

A display device comprising:
a substrate including pixels;
a first electrode and a second electrode that are spaced apart from each other on the substrate;
a light emitting element disposed between the first electrode and the second electrode;
a first connection electrode electrically contacting the first electrode and a first end of the light emitting element;
a second connection electrode electrically contacting the second electrode and another end of the light emitting element;
an organic pattern disposed between the first connection electrode and the second connection electrode and on the light emitting element, wherein
the organic pattern tapers toward the light emitting element, and
a distance between the first connection electrode and the second connection electrode in a first direction is substantially equal to a width of an upper surface of the organic pattern in the first direction; and
a conductive pattern on the organic pattern, wherein the conductive pattern does not overlap the first connection electrode and the second connection electrode.

### Claim 2 (depends on 1)

The display device of claim 1, wherein a side surface of the organic pattern is spaced apart from the first connection electrode.

### Claim 3 (depends on 2)

The display device of claim 2, wherein a width between the side surface of the organic pattern and the first connection electrode is about 0.2 μm or greater.

### Claim 4 (depends on 1)

The display device of claim 1, wherein
the pixels include:
a first pixel that emits a first color;
a second pixel that emits a second color; and
a third pixel that emits a third color, and
the organic pattern selectively transmits the third color.

### Claim 5 (depends on 4)

The display device of claim 4, further comprising:
a first color filter disposed in the first pixel;
a second color filter disposed in the second pixel; and
a third color filter disposed in the third pixel.

### Claim 6 (depends on 5)

The display device of claim 5, wherein the organic pattern and the third color filter include a same material.

### Claim 7 (depends on 1)

The display device of claim 1, wherein the first connection electrode and the second connection electrode are made of a same conductive layer.

### Claim 8 (depends on 1)

The display device of claim 1, wherein the organic pattern exposes the first end and the another end of the light emitting element.

### Claim 9 (depends on 2)

The display device of claim 2, further comprising an insulation layer contacting and overlapping the side surface of the organic pattern.

### Claim 10 (depends on 9)

The display device of claim 9, wherein the insulation layer contacts and overlaps the first connection electrode and the second connection electrode.

### Claim 11 (depends on 1)

The display device of claim 1, wherein the conductive pattern is disposed between the first connection electrode and the second connection electrode.

### Claim 12 (depends on 1)

The display device of claim 1, wherein the conductive pattern is electrically disconnected from the first connection electrode and the second connection electrode.

### Claim 13 (depends on 1)

The display device of claim 1, wherein the conductive pattern, the first connection electrode, and the second connection electrode include a same material.

### Claim 14 (depends on 1)

The display device of claim 1, wherein a thickness of the conductive pattern is substantially equal to a thickness of the first connection electrode and a thickness of the second connection electrode.