# US 2019/0245017 A1 · Organic light-emitting display device including pixel defining layer with openings and black matrix with openings

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- Number: US 2019/0245017 A1
- Document ID: US20190245017A1
- Status: Published application
- Kind: A1
- Application number: 16/270,256
- Filed: 2019-02-07
- Published: 2019-08-08
- Earliest claimed: 2018-02-08
- Assignees: Samsung Display Co., Ltd.
- Applicants: Samsung Display Co., Ltd.
- Inventors: Haseok Jeon; Dohyun Kwon; Choongyoul Im
- Web page: https://patentgrep.com/patent/US20190245017A1

## CPC

- H10K 59/352: {the areas of the RGB subpixels being different}
- H10K 59/1213: {the pixel elements being TFTs}
- H10K 59/122: Pixel-defining structures or layers, e.g. banks
- H10K 59/126: Shielding, e.g. light-blocking means over the TFTs
- H10K 59/35: comprising red-green-blue [RGB] subpixels
- H10K 59/353: {characterised by the geometrical arrangement of the RGB subpixels}
- H10K 59/38: comprising colour filters or colour changing media [CCM]
- H10K 59/40: OLEDs integrated with touch screens
- H10K 59/8722: {Peripheral sealing arrangements, e.g. adhesives, sealants}
- 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 59/131: Interconnections, e.g. wiring lines or terminals
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES

## Abstract

An organic light-emitting display device includes a plurality of pixels. Each of the pixels includes a first electrode, a second electrode, and an organic emission layer between the first electrode and the second electrode. The display device further includes a pixel-defining layer surrounding an outer portion of the first electrode and including a plurality of circular first openings, each of the circular first openings overlapping at least a portion of a respective pixel of the plurality of pixels. The display device additionally includes an encapsulation layer arranged on the second electrode, a black matrix arranged on the encapsulation layer and including a plurality of circular second openings, each of the circular second openings overlapping a respective circular first opening of the plurality of circular first openings, and a plurality of color filters, each of the color filters overlapping a respective circular second opening of the plurality of circular second openings.

## Claims

### Claim 1

An organic light-emitting display device, comprising:
a plurality of pixels, wherein each of the plurality of pixels comprises a first electrode, a second electrode, and an organic emission layer arranged between the first electrode and the second electrode;
a pixel-defining layer surrounding an outer portion of the first electrode and comprising a plurality of circular first openings, each of the plurality of circular first openings overlapping at least a portion of a respective pixel of the plurality of pixels;
an encapsulation layer arranged on the second electrode;
a black matrix arranged on the encapsulation layer and comprising a plurality of circular second openings, each of the plurality of circular second openings overlapping a respective circular first opening of the plurality of circular first openings; and
a plurality of color filters, each of the plurality of color filters overlapping a respective circular second opening of the plurality of circular second openings.

### Claim 2 (depends on 1)

The organic light-emitting display device of claim 1, wherein the pixel-defining layer comprises a light-blocking material.

### Claim 3 (depends on 2)

The organic light-emitting display device of claim 2, wherein the light-blocking material comprises at least one of carbon black, a carbon nano tube (CNT), or a black dye.

### Claim 4 (depends on 1)

The organic light-emitting display device of claim 1, wherein each of the plurality of circular second openings is larger than each of the plurality of circular first openings.

### Claim 5 (depends on 1)

The organic light-emitting display device of claim 1, wherein the black matrix comprises a light-blocking material.

### Claim 6 (depends on 5)

The organic light-emitting display device of claim 5, wherein the light-blocking material comprises at least one of carbon black, a carbon nano tube (CNT), or a black dye.

### Claim 7 (depends on 5)

The organic light-emitting display device of claim 5, wherein the black matrix is further arranged outside of a display area of the organic light-emitting display device, wherein the plurality of pixels is arranged in the display area.

### Claim 8 (depends on 1)

The organic light-emitting display device of claim 1, wherein the encapsulation layer comprises at least one inorganic layer and at least one organic layer.

### Claim 9 (depends on 7)

The organic light-emitting display device of claim 7, further comprising a touch sensing layer arranged between the encapsulation layer and the color filters.

### Claim 10 (depends on 1)

The organic light-emitting display device of claim 1, wherein the color filters filter colors in different bands.

### Claim 11

An organic light-emitting display device, comprising:
a plurality of pixels, wherein each of the plurality of pixels comprises a first electrode, a second electrode arranged in common over the plurality of pixels, and an organic emission layer arranged between the first electrode and the second electrode, wherein the first electrode has a circular shape;
a pixel-defining layer surrounding a portion of the first electrode and comprising a first opening overlapping a first pixel of the plurality of pixels;
an encapsulation layer arranged on the second electrode;
a black matrix arranged on the encapsulation layer and comprising a circular second opening overlapping the first opening; and
a first color filter of a plurality of color filters, the first color filter overlapping the circular second opening.

### Claim 12 (depends on 11)

The organic light-emitting display device of claim 11, wherein the first electrode comprises a reflective material.

### Claim 13 (depends on 11)

The organic light-emitting display device of claim 11, wherein the pixel-defining layer comprises a light-transmissive material.

### Claim 14 (depends on 11)

The organic light-emitting display device of claim 11, wherein the circular second opening is larger than the first electrode.

### Claim 15 (depends on 11)

The organic light-emitting display device of claim 11, wherein the black matrix comprises a light-blocking material.

### Claim 16 (depends on 15)

The organic light-emitting display device of claim 15, wherein the black matrix is further arranged outside of a display area of the organic light-emitting display device, wherein the plurality of pixels is arranged in the display area.

### Claim 17 (depends on 11)

The organic light-emitting display device of claim 11, wherein the first opening has a circular shape.

### Claim 18 (depends on 11)

The organic light-emitting display device of claim 11, wherein the encapsulation layer comprises at least one inorganic layer and at least one organic layer.

### Claim 19 (depends on 18)

The organic light-emitting display device of claim 18, further comprising a touch sensing layer arranged between the encapsulation layer and the color filters.

### Claim 20 (depends on 11)

The organic light-emitting display device of claim 11, wherein the color filters filter colors in different bands.
