# US 12,216,956 B2 · Splice screen driving method and driving device thereof, electronic device and computer-readable medium

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- Number: US 12,216,956 B2
- Document ID: US12216956B2
- Status: Granted
- Kind: B2
- Application number: 17/622,810
- Filed: 2021-12-20
- Published: 2024-01-25
- Granted: 2025-02-04
- Earliest claimed: 2021-12-13
- Assignees: Huizhou China Star Optoelectronics Display Co., Ltd.; Tcl China Star Optoelectronics Technology Co., Ltd.
- Applicants: Huizhou China Star Optoelectronics Display Co., Ltd.; Tcl China Star Optoelectronics Technology Co., Ltd.
- Inventors: Qian Wang
- Web page: https://patentgrep.com/patent/US12216956B2

## CPC

- G06F 3/1446: {display composed of modules, e.g. video walls}
- G06F 3/1423: {controlling a plurality of local displays, e.g. CRT and flat panel display}
- G06T 3/4007: based on interpolation, e.g. bilinear interpolation (image demosaicing G06T3/4015; edge-driven or edge-based scaling G06T3/403)
- G06T 5/73: Deblurring; Sharpening
- G09G 3/20: for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix {no fixed position being assigned to or needed to be assigned to the individual characters or partial characters}
- H04N 7/0117: {involving conversion of the spatial resolution of the incoming video signal (for graphics images G09G2340/0407)}
- G09G 2300/026: Video wall, i.e. juxtaposition of a plurality of screens to create a display screen of bigger dimensions
- G09G 2320/0233: Improving the luminance or brightness uniformity across the screen
- G09G 2320/0242: Compensation of deficiencies in the appearance of colours
- G09G 2340/0407: Resolution change, inclusive of the use of different resolutions for different screen areas
- G09G 2340/14: Solving problems related to the presentation of information to be displayed
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- G06T: IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00)
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION

## Abstract

A splice screen driving method, a splice screen driving device, an electronic device, and computer-readable medium are provided. According to a size of a filling screen in a splice screen, an initial video signal is expanded to obtain a first video signal that drives the filling screen. The second video signal corresponding to the filling screen in the first video signal is sharpened and filtered to improve a clarity of a picture at a connection of a sub-display and the filling screen, to solve a problem of picture blur.

## Claims

### Claim 1

A splice screen driving method, wherein a splice screen comprises a plurality of sub-display screens and at least one filling screen, and wherein the plurality of sub-display screens are disposed at intervals by the at least one filling screen, and wherein the splice screen driving method comprises:
acquiring an initial video signal for driving the splice screen, and adjusting a resolution of the initial video signal according to the at least one filling screen to obtain a first video signal;
determining a second video signal corresponding to the at least one filling screen in the first video signal;
performing sharpening filtering on the second video signal to obtain a third video signal; and
replacing the second video signal with the third video signal to obtain a target video signal, and wherein the target video signal is used to drive the splice screen;
wherein the step of acquiring the initial video signal for driving the splice screen, and adjusting the resolution of the initial video signal according to the at least one filling screen to obtain a first video signal comprises:
acquiring the initial video signal, and adjusting the resolution of the initial video signal by linear interpolation to obtain the second video signal corresponding to the at least one filling screen;
wherein the first video signal comprises the second video signal and the initial video signal;
wherein the step of performing sharpening filtering on the second video signal to obtain the third video signal further comprises:
processing the second video signal by using a preset sharpening filter algorithm to obtain the third video signal; and
wherein the preset sharpening filter algorithm is:
g(x,y)=f(x,y)−c*∇2f(x,y)
wherein the g(x,y) is the third video signal, the f(x,y) is the second video signal, the ∇2 f(x,y) is a preset Laplace operator, and the C is a preset sharpening filter coefficient.

### Claim 2 (depends on 1)

The splice screen driving method according to claim 1, wherein there are two sub-display screens, one filling screen, and wherein a corresponding size of the filling screen is m*b, and wherein the step of acquiring an initial video signal for driving the splice screen, and adjusting a resolution of the initial video signal according to the at least one filling screen to obtain a first video signal comprises:
acquiring the initial video signal, wherein the resolution corresponding to the initial video signal is 2a*b;
adjusting the resolution of the initial video signal from 2a*b to (2a+m)*b according to the size m*b corresponding to the filling screen;
wherein a resolution corresponding to the second video signal is m*b; wherein the first video signal (2a+m)*b comprises the second video signal m*b and the initial video signal 2a*b.

### Claim 3 (depends on 1)

The splice screen driving method according to claim 1, wherein there are two sub-display screens, and one filled screen, and wherein after the step of performing sharpening filtering on the second video signal to obtain a third video signal, the splice screen driving method further comprises:
determining a first sub-display screen region which is connected to the filling screen and is within a target range of the two sub-display screens;
determining a fourth video signal corresponding to the first sub-display screen region in the initial video signal; and
performing sharpening filtering on the fourth video signal to obtain a fifth video signal.

### Claim 4 (depends on 3)

The splice screen driving method according to claim 3, wherein the step of determining the first sub-display screen region which is connected to the filling screen and is within a target range of the two sub-display screens comprises:
determining a region connected to the filling screen and having a same size as the filling screen according to a size of the filling screen, wherein the region is the first-sub-display screen region.

### Claim 5 (depends on 3)

The splice screen driving method according to claim 3, wherein the step of replacing the second video signal with the third video signal to obtain a target video signal, and wherein the target video signal is used to drive the splice screen comprises:
replacing the fourth video signal with the fifth video signal, and replacing the second video signal with the third video signal, to obtain the target video signal;
wherein the target video signal is used to drive the splice screen.

### Claim 6 (depends on 1)

The splice screen driving method according to claim 1, wherein there are a plurality of filling screens, and wherein the plurality of filling screens cross and overlap to form at least one intersection region, and wherein the plurality of filling screens intersect to form a plurality of accommodating spaces, and wherein the plurality of sub-display screens are respectively disposed in the plurality of accommodating spaces, and wherein the step of processing the initial video signal by linear interpolation to obtain a second video signal corresponding to the filling screen comprises:
processing the initial video signal by linear interpolation to obtain a plurality of second sub-video signals corresponding to the plurality of filling screens; and
combining part of video signals corresponding to the at least one intersection region of the plurality of second sub-video signals to obtain the second video signal corresponding to the filling screen.

### Claim 7 (depends on 1)

An electronic device, comprising:
one or a plurality of processors;
a memory; and
one or a plurality of application programs, wherein the one or the plurality of application programs are stored in the memory and configured to be executed by the processor to implement the splice screen driving method according to claim 1.

### Claim 8 (depends on 1)

A computer-readable storage medium, wherein a computer program is stored thereon, and the computer program is loaded by a processor to execute the steps in the splice screen driving method according to claim 1.

### Claim 9

A splice screen driving device, wherein a splice screen comprises a plurality of sub-display screens and at least one filling screen, and wherein the plurality of sub-display screens are disposed at intervals by the at least one filling screen, and wherein the splice screen driving device comprises:
an acquiring module configured to acquire an initial video signal for driving the splice screen, and adjust a resolution of the initial video signal according to the at least one filling screen to obtain a first video signal;
a determining module configured to determine a second video signal corresponding to the at least one filling screen in the first video signal;
a sharpening filtering module configured to perform sharpening filtering on the second video signal to obtain a third video signal; and
a driving module configured to replace the second video signal with the third video signal to obtain a target video signal, and wherein the target video signal is used to drive the splice screen;
wherein the acquisition module is configured to acquire the initial video signal, and configured to adjust the resolution of the initial video signal by linear interpolation to obtain the second video signal corresponding to the at least one filling screen;
wherein the first video signal comprises the second video signal and the initial video signal;
wherein the sharpening filter module is configured to process the second video signal by using a preset sharpening filter algorithm to obtain the third video signal; and
wherein the preset sharpening filter algorithm is:
g(x,y)=f(x,y)−C*∇2f(x,y)
wherein the g(x,y) is the third video signal, the f(x,y) is the second video signal, the ∇2 f(x,y) is a preset Laplace operator, and the C is a preset sharpening filter coefficient.

### Claim 10 (depends on 9)

The splice screen driving device according to claim 9, wherein there are two sub-display screens, one filling screen, and wherein a corresponding size of the filling screen is m*b, and wherein the acquisition module is configured to acquire the initial video signal, wherein the resolution corresponding to the initial video signal is 2a*b; and
wherein the acquisition module is configured to adjust the resolution of the initial video signal from 2a*b to (2a+m)*b according to the size m*b corresponding to the filling screen; and
wherein a resolution corresponding to the second video signal is m*b; wherein the first video signal (2a+m)*b comprises the second video signal m*b and the initial video signal 2a*b.

### Claim 11 (depends on 9)

The splice screen driving device according to claim 9, wherein there are two sub-display screens, and one filled screen; the sharpening filter module is configured to determine a first sub-display screen region which is connected to the filling screen and is within a target range of the two sub-display screens, configured to determine a fourth video signal corresponding to the first sub-display screen region in the initial video signal, and configured to perform sharpening filtering on the fourth video signal to obtain a fifth video signal.

### Claim 12 (depends on 11)

The splice screen driving device according to claim 11, wherein the sharpening filter module is configured to determine a region connected to the filling screen and having a same size as the filling screen according to a size of the filling screen, wherein the region is the first-sub-display screen region.

### Claim 13 (depends on 11)

The splice screen driving device according to claim 11, wherein the driving module is configured to replace the fourth video signal with the fifth video signal, and replacing the second video signal with the third video signal, to obtain the target video signal, and configured to drive the splice screen by the target video signal.

### Claim 14 (depends on 9)

The splice screen driving device according to claim 9, wherein there are a plurality of filling screens, and wherein the plurality of filling screens cross and overlap to form at least one intersection region, and wherein the plurality of filling screens intersect to form a plurality of accommodating spaces, and wherein the plurality of sub-display screens are respectively disposed in the plurality of accommodating spaces; and
wherein the sharpening filter module is configured to process the initial video signal by linear interpolation to obtain a plurality of second sub-video signals corresponding to the plurality of filling screens, and
wherein the sharpening filter module is configured to combine part of video signals corresponding to the at least one intersection region of the plurality of second sub-video signals to obtain the second video signal corresponding to the filling screen.

### Claim 15

A splice screen driving method, wherein a splice screen comprises a plurality of sub-display screens and at least one filling screen, and wherein the plurality of sub-display screens are disposed at intervals by the at least one filling screen, and wherein the splice screen driving method comprises:
acquiring an initial video signal for driving the splice screen, and adjusting a resolution of the initial video signal according to the at least one filling screen to obtain a first video signal;
determining a second video signal corresponding to the at least one filling screen in the first video signal;
performing sharpening filtering on the second video signal to obtain a third video signal; and
replacing the second video signal with the third video signal to obtain a target video signal, and wherein the target video signal is used to drive the splice screen;
wherein the step of acquiring the initial video signal for driving the splice screen, and adjusting the resolution of the initial video signal according to the at least one filling screen to obtain a first video signal comprises:
acquiring the initial video signal, and adjusting the resolution of the initial video signal by linear interpolation to obtain the second video signal corresponding to the at least one filling screen;
wherein the first video signal comprises the second video signal and the initial video signal; and
wherein there are two sub-display screens, one filling screen, and wherein a corresponding size of the filling screen is m*b, and wherein the step of acquiring an initial video signal for driving the splice screen, and adjusting a resolution of the initial video signal according to the at least one filling screen to obtain a first video signal comprises:
acquiring the initial video signal, wherein the resolution corresponding to the initial video signal is 2a*b;
adjusting the resolution of the initial video signal from 2a*b to (2a+m)*b according to the size m*b corresponding to the filling screen;
wherein a resolution corresponding to the second video signal is m*b; wherein the first video signal (2a+m)*b comprises the second video signal m*b and the initial video signal 2a*b.