# US 12,592,168 B2 · Splicing screen and display device

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- Number: US 12,592,168 B2
- Document ID: US12592168B2
- Status: Granted
- Kind: B2
- Application number: 17/822,782
- Filed: 2022-08-27
- Published: 2024-01-25
- Granted: 2026-03-31
- Earliest claimed: 2022-07-20
- Assignees: Tcl China Star Optoelectronics Technology Co., Ltd.
- Applicants: Tcl China Star Optoelectronics Technology Co., Ltd.
- Inventors: Bo Sun
- Web page: https://patentgrep.com/patent/US12592168B2

## CPC

- G09F 9/3026: {Video wall, i.e. stackable semiconductor matrix display modules (video wall control systems G06F3/1446, G09G2300/026)}
- G09F 9/33: being semiconductor devices, e.g. diodes
- H10H 20/84: Coatings, e.g. passivation layers or antireflective coatings
- H10W 90/00: Package configurations
- G09F: DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- 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

The present application provides a splicing screen and a display device. The display screen comprises at least a first display panel and a second display panel of a same type, and a third display panel with a type different from that of the first display panel and sandwiched between the first display panel and the second display panel. Each of the first display panel and the second display panel comprises the first light emitting module. The third display panel comprises a plurality of second light emitting modules. A color gamut adjustment module is disposed on at least one of the second light emitting modules such that a color gamut of the third light emitting module is the same as a color gamut of the first light emitting module to further make light emitted by the first display panel, the second display panel, and the third display panel similar.

## Claims

### Claim 1

A splicing screen, wherein the splicing screen comprises a first display panel, a second display panel, and a third display panel, the first display panel and the second display panel are same type display panels, the first display panel and the third display panel are different types, the third display panel is sandwiched between the first display panel and the second display panel;
the first display panel comprises a first substrate, and a first light emitting module is disposed on the first substrate;
the third display panel comprises a second substrate, a plurality of second light emitting modules are disposed on the second substrate, a color gamut adjustment module is disposed on at least one of the second light emitting modules, and the color gamut adjustment module is configured to adjust color gamuts of the second light emitting modules such that the color gamuts of the second light emitting modules are the same as a color gamut of the first light emitting module;
wherein some of the second light emitting modules comprise blue light emitting units while the rest of the second light emitting modules do not comprise blue light emitting units, and the color gamut adjustment module is disposed on each of the second light emitting modules comprising the blue light emitting units.

### Claim 2 (depends on 1)

The splicing screen according to claim 1, wherein the first light emitting module comprises a blue light emitting unit and a first fluorescence layer coated on the blue light emitting unit.

### Claim 3 (depends on 2)

The splicing screen according to claim 2, wherein the first fluorescence layer is a yellow fluorescence layer.

### Claim 4 (depends on 3)

The splicing screen according to claim 3, wherein the color gamut adjustment module comprises a red fluorescence layer and a green fluorescence layer.

### Claim 5 (depends on 4)

The splicing screen according to claim 4, wherein each of thicknesses of the yellow fluorescence layer, the red fluorescence layer, and the green fluorescence layer ranges from 100 to 200 microns.

### Claim 6 (depends on 5)

The splicing screen according to claim 5, wherein the thicknesses of the yellow fluorescence layer, the red fluorescence layer, and the green fluorescence layer are the same.

### Claim 7 (depends on 1)

The splicing screen according to claim 1, wherein the splicing screen further comprises a fourth display panel and a fifth display panel, the third display panel is a cross-shaped display panel, the first display panel, the second display panel, the fourth display panel, and the fifth display panel are connected to the third display panel to form the splicing screen.

### Claim 8 (depends on 1)

A display device, wherein the display device comprises any one of the splicing screen according to claim 1.