CN-121983003-A - Spliced screen control system and method, display device and computer readable storage medium

CN121983003ACN 121983003 ACN121983003 ACN 121983003ACN-121983003-A

Abstract

The invention discloses a spliced screen control system and method, a display device and a computer readable storage medium. The spliced screen control system comprises a plurality of display screen control modules, at least one video output interface and at least one video output interface, wherein the video input interface is used for inputting video signals, the video copying unit is used for receiving the video signals and copying the video signals to obtain multiple paths of output video signals, the video processing unit is used for receiving one path of output video signals, the video processing unit is used for processing the received output video signals to drive the corresponding display screens, and the video output interface is used for receiving one path of output video signals and sending the received output video signals to the other display screen control module. According to the spliced screen control system and method, the display device and the computer readable storage medium, wiring of the spliced screen can be simplified.

Inventors

LIU YAN
ZHANG ZHE
LI XINHUI

Assignees

上海莹火智显科技有限公司

Dates

Publication Date: 20260505
Application Date: 20251226

Claims (15)

1. A tiled display control system comprising a plurality of display control modules that control different displays respectively, each of the display control modules comprising: a video input interface for inputting a video signal; the video copying unit is connected with the video input interface to receive the video signals and copy the video signals to obtain multiple output video signals; The video processing unit is connected with the video copying unit to receive one path of output video signals in the multipath output video signals, and processes the received output video signals to drive a corresponding display screen; And the video output interface is connected with the video copying unit to receive one output video signal of the multipath output video signals and send the received output video signal to another display screen control module.
2. The tiled screen control system of claim 1, wherein the video input interface includes a first video input interface and a second video input interface; The display screen control module further comprises: A switching unit connected to the first video input interface, the second video input interface, and the video reproduction unit, respectively, to gate the first video input interface or the second video input interface, and to transmit the gate video signal to the video reproduction unit, The first video input interface and the second video input interface are respectively connected to video output interfaces of different adjacent display screen control modules to receive corresponding output video signals as video signals input by the first video input interface and the second video input interface.
3. The tiled screen control system of claim 1, wherein the display screen control module further comprises: the communication unit is used for establishing a communication link with other display screen control modules; The control unit is connected with the communication unit and the video processing unit and is used for communicating with other display screen control modules through the communication link so as to determine the relative position relation between the display screens corresponding to the other display screen control modules and configure display parameters according to the relative position relation.
4. A tiled screen control system according to claim 3, wherein the communication unit is based on a universal asynchronous transceiving transmission protocol, the signal lines of the communication unit being embedded in reserved pins of the video input interface and the video output interface.
5. A tiled screen control system according to claim 3, wherein the control unit is configured to: when the video input interface does not receive the data packet through the communication unit within preset time, the position of the display screen corresponding to the display screen control module where the video input interface is located is set as an origin position.
6. A tiled screen control system according to claim 3, wherein the control unit is configured to: And according to the relative position relation, distributing an Internet protocol address for the display screen control module where the display screen control module is located.
7. The spliced screen control system according to claim 1, wherein the multiple paths of output video signals are at least three paths, and wherein two paths of output video signals are respectively output to display screen control modules in different physical connection directions.
8. The tiled screen control system of claim 7, wherein the multiplexed output video signal of the display screen control module includes a first output video signal and a second output video signal; The first output video signal is output to a display screen control module of the display screen control module corresponding to the adjacent display screen above the display screen, the second output video signal is output to a display screen control module of the display screen control module corresponding to the adjacent display screen on the left side of the display screen, or The first output video signal is output to a display screen control module of the display screen control module corresponding to the display screen adjacent to the upper side of the display screen, the second output video signal is output to a display screen control module of the display screen control module corresponding to the display screen adjacent to the right side of the display screen, or The first output video signal is output to a display screen control module of an adjacent display screen below the corresponding display screen of the display screen control module, the second output video signal is output to a display screen control module of an adjacent display screen on the left side of the corresponding display screen of the display screen control module, or The first output video signal is output to a display screen control module of an adjacent display screen below the display screen corresponding to the display screen control module, and the second output video signal is output to a display screen control module of an adjacent display screen on the right side of the display screen corresponding to the display screen control module.
9. A spliced screen control method comprises the following steps: receiving a video signal; copying the video signal to obtain a multi-channel output video signal; processing one output video signal in the multipath output video signals to drive a corresponding display screen; and sending one output video signal in the multipath output video signals to another display screen.
10. The stitched screen control method of claim 9, wherein the stitched screen control method further comprises: Transmitting communication data packets between a plurality of display screen control modules via communication links integrated in the video input interface and the video output interface; Each display screen control module calculates and updates the relative position relation of the display screen control module in the spliced screen, and forwards a communication data packet containing the updated position information of the display screen control module to the adjacent display screen control module through a video output interface; And each display screen control module configures corresponding display parameters according to the relative positions of the display screen control modules so as to realize the display of the images.
11. The stitched screen control method of claim 9, wherein the stitched screen control method further comprises: Establishing a communication link between display screens, wherein the communication link is based on a universal asynchronous receiving and transmitting transmission protocol; and determining the relative position relation among the display screens according to the communication link.
12. The stitched screen control method of claim 9, wherein the stitched screen control method further comprises: Connecting a plurality of display screens in cascade, and taking the position of a first-stage display screen as an origin position; the upper display screen sends the self-position information to the lower display screen based on the universal asynchronous receiving and transmitting transmission protocol; The next stage display screen obtains the self-position information according to the received self-position information of the previous stage display screen, The next-stage display screen acquires self-position information according to the received self-position information of the previous-stage display screen, judges whether the acquired self-position information is consistent with the recorded self-position information or not, and corrects the self-position and updates the corresponding address when the acquired self-position information is inconsistent with the recorded self-position information.
13. The tiled screen control method of claim 12, wherein the updating the corresponding address includes: Updating the corresponding internet protocol address.
14. A display device, comprising: the tiled screen control system of any of claims 1-8, and A plurality of display screens spliced together to form a spliced screen, Different display screen control modules in the spliced screen control system control different display screens.
15. A computer readable storage medium having stored thereon a computer program, wherein the computer program when executed by a processor implements the tiled screen control method according to any of claims 9-13.

Description

Spliced screen control system and method, display device and computer readable storage medium Technical Field The present invention relates to the field of display control technologies, and in particular, to a system and a method for controlling a spliced screen, a display device, and a computer readable storage medium. Background In the existing LED display control system technology, there is generally a two-stage architecture, that is, a transmission and reception separated mode. In this architecture, a receiving card is generally placed in a box, the receiving card is connected with a transmitting card through an interface such as a network cable, and standard video sources such as HDMI, DVI and the like are disassembled through the transmitting card and then transmitted to the upper surface of the receiving card through an interface such as Ethernet. For the existing two-level architecture, because of the historical technical reasons, the driving of the LED display screen needs special clock time sequence, so a receiving card is needed to output the received image data in a time sequence mode according to the driving mode of the LED display screen, the parallelism of the time sequence process is very high, the time sequence matching is very strict, and the FPGA architecture technology is basically the only choice. Because the technical architecture of the FPGA is limited, a balance is difficult to achieve between the cost and the scheme, standard HDMI or DP video source input can be directly supported, and timing control is carried out, so that the conventional method is that the front and transmitting card equipment is adopted, the transmitting card is used as standard interface video source input such as HDMI, the HDMI signals input by the standard interface are repackaged through the transmitting card equipment, and then the HDMI signals are transmitted to the receiving card through a transmission medium, such as gigabit Ethernet. With the increasing resolution of LED displays, it is becoming common for displays within 4K resolution to be in a traditional gigabit ethernet transmit+receive mode, and wiring is very complex, for example, at least 16 wires are required for 4K resolution, which is a significant problem from both application and engineering implementation. Accordingly, it is desirable to have a new tiled screen control system and method, display device, computer readable storage medium that addresses at least one of the above-mentioned problems. Disclosure of Invention In view of the foregoing, it is an object of the present invention to provide a system and method for controlling a tiled screen, a display device, and a computer readable storage medium, particularly a system architecture for controlling an LED display screen with free tiling, so as to simplify the wiring of the tiled screen. According to an aspect of the present invention, there is provided a tiled display screen control system including a plurality of display screen control modules that control different display screens, respectively, each of the display screen control modules including: a video input interface for inputting a video signal; the video copying unit is connected with the video input interface to receive the video signals and copy the video signals to obtain multiple output video signals; The video processing unit is connected with the video copying unit to receive one path of output video signals in the multipath output video signals, and processes the received output video signals to drive a corresponding display screen; And the video output interface is connected with the video copying unit to receive one output video signal of the multipath output video signals and send the received output video signal to another display screen control module. Optionally, the video input interface includes a first video input interface and a second video input interface; The display screen control module further comprises: A switching unit connected to the first video input interface, the second video input interface, and the video reproduction unit, respectively, to gate the first video input interface or the second video input interface, and to transmit the gate video signal to the video reproduction unit, The first video input interface and the second video input interface are respectively connected to video output interfaces of different adjacent display screen control modules to receive corresponding output video signals as video signals input by the first video input interface and the second video input interface. Optionally, the display screen control module further includes: the communication unit is used for establishing a communication link with other display screen control modules; The control unit is connected with the communication unit and the video processing unit and is used for communicating with other display screen control modules through the communication link so as to determine the relative position r