# US 12,224,270 B2 · Tiled display device

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- Number: US 12,224,270 B2
- Document ID: US12224270B2
- Status: Granted
- Kind: B2
- Application number: 17/652,797
- Filed: 2022-02-28
- Published: 2022-10-13
- Granted: 2025-02-11
- Earliest claimed: 2021-04-09
- Assignees: Samsung Display Co., Ltd.
- Applicants: Samsung Display Co., Ltd.
- Inventors: Hyun-Hyang Kim; Dahye Kim; Mansoo Kim; Jeongweon Seo; Juyoun Son; Jae Sul An; Min-Gwan Hyun
- Web page: https://patentgrep.com/patent/US12224270B2

## CPC

- H10K 59/18: Tiled displays
- H10W 90/00: Package configurations
- H10K 59/12: Active-matrix OLED [AMOLED] displays
- H10K 59/87: {Passivation; Containers; Encapsulations}
- H10K 59/8792: {comprising light absorbing layers, e.g. black layers}
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10W: GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10

## Abstract

A tiled display device includes a plurality of display panel modules arranged adjacent to each other. Each of the plurality of display panel modules includes a display panel including a display area and a bezel area at least partially surrounding the display area, a light blocking layer disposed on the display panel and extending from the display area to a portion of the bezel area, and a protective layer disposed on the light blocking layer. In the bezel area, a distance from an end of the display panel to an end of the protective layer is greater than a distance from the end of the display panel to an end of the light blocking layer. Accordingly, an air layer is not formed between the protective layer and the display panel. A visibility of a seam area is reduced.

## Claims

### Claim 1

A tiled display device, comprising:
a plurality of display panel modules arranged adjacent to each other, wherein each of the plurality of display panel modules includes:
a display panel including a display area and a bezel area at least partially surrounding the display area;
a light blocking layer disposed on the display panel and extending from the display area to a portion of the bezel area; and
a protective layer disposed on the light blocking layer,
wherein in the bezel area, a distance from an end of the display panel to an end of the protective layer is greater than a distance from the end of the display panel to an end of the light blocking layer.

### Claim 2 (depends on 1)

The tiled display device of claim 1, wherein the protective layer includes an anti-glare film or an anti-reflective film.

### Claim 3 (depends on 1)

The tiled display device of claim 1, wherein a color of the light blocking layer is black.

### Claim 4 (depends on 1)

The tiled display device of claim 1, wherein each of the plurality of display panel modules further includes:
a first ink covering both an exposed upper surface of the display panel and a side surface of the display panel within the bezel area.

### Claim 5 (depends on 4)

The tiled display device of claim 4, wherein each of the plurality of display panel modules further includes:
a second ink covering a side surface of the protective layer within the bezel area.

### Claim 6 (depends on 5)

The tiled display device of claim 5, wherein the first ink contacts the second ink within the bezel area, and
wherein the first ink further covers an upper surface of the light blocking layer and a side surface of the light blocking layer.

### Claim 7 (depends on 5)

The tiled display device of claim 5, wherein a color of the first ink is the same as a color of the second ink.

### Claim 8 (depends on 5)

The tiled display device of claim 5, wherein a color of the first ink and a color of the second ink are black.

### Claim 9

A display device, comprising:
a first display panel module; and
a second display panel module adjacent to the first display panel module,
wherein each of the first and second display panel modules includes:
a display panel having a display area and a bezel area at least partially surrounding the display area;
a light blocking layer disposed on the bezel area of the display panel; and
a protective layer disposed on the light blocking layer,
wherein, for each of the first and second display panel modules, the display panel, the light blocking layer, and the protective layer form a stepped shape.

### Claim 10 (depends on 9)

The display device of claim 9, wherein the protective layer includes an anti-glare film or an anti-reflective film.

### Claim 11 (depends on 9)

The display device of claim 9, wherein the stepped shape is at least partially covered by an ink pattern.