# US 12,225,762 B2 · Display device

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 12,225,762 B2
- Document ID: US12225762B2
- Status: Granted
- Kind: B2
- Application number: 17/523,345
- Filed: 2021-11-10
- Published: 2022-05-12
- Granted: 2025-02-11
- Earliest claimed: 2020-11-11
- Assignees: Samsung Display Co., Ltd.
- Applicants: Samsung Display Co., Ltd.
- Inventors: Kwang Soo Bae; Beomsoo Park; Minjeong Oh; Youngje Cho
- Web page: https://patentgrep.com/patent/US12225762B2

## CPC

- H10K 59/878: {comprising reflective means}
- H10K 59/38: comprising colour filters or colour changing media [CCM]
- H10K 59/40: OLEDs integrated with touch screens
- H10K 59/8731: {multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers}
- H10K 59/8792: {comprising light absorbing layers, e.g. black layers}
- H10K 2102/3026: {Top emission}
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES

## Abstract

A display device includes a substrate, a sub-pixel structure, a light blocking member, and a reflective member. A display area including a sub-pixel area is defined on the substrate. The sub-pixel structure is disposed in the sub-pixel area on the substrate. The light blocking member is disposed over the sub-pixel structure, and a first opening is defined in a portion of the light blocking member which overlaps the sub-pixel structure. The reflective member is disposed between the light blocking member and the sub-pixel structure, and the reflective member surrounds the sub-pixel structure and the first opening.

## Claims

### Claim 1

A display device comprising:
a substrate on which a display area including a sub-pixel area is defined;
a sub-pixel structure disposed in the sub-pixel area on the substrate;
a light blocking member disposed over the sub-pixel structure, wherein a first opening is defined in a portion of the light blocking member which overlaps the sub-pixel structure; and
a reflective member disposed between the light blocking member and the sub-pixel structure, wherein the reflective member surrounds the sub-pixel structure and the first opening, and a sidewall defining a major surface plane of the reflective member is orthogonal to a top surface defining the substrate.

### Claim 2 (depends on 1)

The display device of claim 1, wherein the reflective member does not overlap the first opening in a thickness direction of the substrate.

### Claim 3 (depends on 1)

The display device of claim 1, further comprising:
a support member disposed between the light blocking member and the sub-pixel structure, wherein a second opening is defined in the support member to overlap the first opening.

### Claim 4 (depends on 3)

The display device of claim 3, wherein a side wall of the support member, which defines the second opening, makes contact with the reflective member.

### Claim 5 (depends on 4)

The display device of claim 4, wherein the side wall of the support member is orthogonal to a top surface of the support member.

### Claim 6 (depends on 3)

The display device of claim 3, wherein the second opening is larger than the first opening.

### Claim 7 (depends on 3)

The display device of claim 3, further comprising:
an insulating layer which covers the reflective member and the support member over the sub-pixel structure.

### Claim 8 (depends on 7)

The display device of claim 7, wherein the light blocking member makes contact with a top surface of the insulating layer.

### Claim 9 (depends on 3)

The display device of claim 3, wherein the sub-pixel structure includes:
a lower electrode;
a light emitting layer disposed on the lower electrode, wherein the light emitting layer emits a light; and
an upper electrode disposed on the light emitting layer,
wherein a part of the light emitted from the light emitting layer is reflected from the reflective member.

### Claim 10 (depends on 9)

The display device of claim 9, further comprising:
a pixel defining layer disposed on the lower electrode, wherein an opening is defined in the pixel defining layer to expose a part of a top surface of the lower electrode.

### Claim 11 (depends on 10)

The display device of claim 10, wherein a virtual line extending along a side wall of the pixel defining layer, which defines the opening of the pixel defining layer, passes through the support member.

### Claim 12 (depends on 10)

The display device of claim 10, wherein each of the light blocking member and the pixel defining layer has an opaque color.

### Claim 13 (depends on 1)

The display device of claim 1, further comprising:
a thin film encapsulation structure disposed between the sub-pixel structure and the reflective member.

### Claim 14 (depends on 13)

The display device of claim 13, wherein the thin film encapsulation structure includes:
a first inorganic thin film encapsulation layer;
an organic encapsulation layer disposed on the first inorganic thin film encapsulation layer; and
a second inorganic thin film encapsulation layer disposed on the organic encapsulation layer.

### Claim 15 (depends on 13)

The display device of claim 13, further comprising:
a touch sensing structure disposed between the thin film encapsulation structure and the reflective member.

### Claim 16 (depends on 15)

The display device of claim 15, wherein the touch sensing structure makes contact with a top surface of the thin film encapsulation structure.

### Claim 17 (depends on 1)

The display device of claim 1, further comprising:
a color filter disposed on the light blocking member, wherein the color filter fills the first opening.