CN118053379A

CN118053379A - LED display device and control method thereof

Info

Publication number: CN118053379A
Application number: CN202211434829.3A
Authority: CN
Inventors: 黄飞; 李见; 柳瑞丛
Original assignee: Hisense Visual Technology Co Ltd
Current assignee: Hisense Visual Technology Co Ltd
Priority date: 2022-11-16
Filing date: 2022-11-16
Publication date: 2024-05-17

Abstract

The application provides an LED display device and a control method thereof, wherein the LED display components of an LED display screen are driven by a driving circuit to display row by row in a time-sharing multiplexing mode among the driving circuits, so that the number of the driving circuits arranged in the LED display device is reduced, and the complexity of the driving circuit controlled by the control circuit to drive the LED components is simplified.

Description

LED display device and control method thereof

Technical Field

The application relates to the technical field of light-emitting diodes (LEDs for short), in particular to an LED display device and a control method thereof.

Background

With the continuous development of display technology, LED display devices adopting MiniLED, microLED technologies have a higher resolution and a larger display size. However, due to the limitation of the production process, the LED display device is spliced to form the whole LED display screen through different lamp panels, and a plurality of driving circuits are arranged in each lamp panel, and each driving circuit is used for driving an LED display assembly in one display area on the lamp panel to display.

In the prior art, the number of driving circuits arranged in the LED display device is large, and the complexity of the control circuit of the LED display device for controlling the driving circuits to drive the LED assembly is high. Therefore, how to reduce the number of driving circuits provided in the LED display device and simplify the complexity of the control circuit when controlling the driving circuits to drive the LED display assembly is a technical problem to be solved in the art.

Disclosure of Invention

The application provides an LED display device and a control method thereof, which are used for reducing the number of driving circuits arranged in the LED display device and simplifying the complexity of the control circuit when the driving circuits control the LED components.

A first aspect of the present application provides a light emitting diode, LED, display device comprising: the LED display screen comprises a plurality of display areas which are distributed in rows and columns, and each display area comprises a plurality of LED display components which are distributed in rows and columns; the plurality of display areas includes a plurality of first type display areas and a plurality of second type display areas; a plurality of driving circuits, the number of which is equal to the number of the plurality of first type display regions, the plurality of driving circuits being disposed on a non-display side of the plurality of first type display regions; the control circuit is used for sequentially sending row driving signals of one row of LED display components of the LED display screen to the plurality of driving circuits, so that the plurality of driving circuits drive the LED display components of the LED display screen to display row by row according to the row driving signals; the driving circuits are arranged on the non-display side of the first type display area and used for driving the LED display components in the first type display area to display according to the row driving signals; the driving circuits arranged on the same row and the same column in the second type display area are used for driving the LED display components in the second type display area to display according to the row driving signals.

In a first embodiment of the first aspect of the present application, the plurality of driving circuits are sequentially connected in series; the control circuit is configured to send the row driving signal to a first one of the plurality of driving circuits, each of the plurality of driving circuits being configured to receive the row driving signal and send the row driving signal to a next driving circuit connected in series.

In an embodiment of the first aspect of the present application, the LED display screen includes a plurality of boxes distributed in rows and columns, each of the boxes includes a plurality of light panels distributed in rows and columns, and each of the light panels includes a plurality of display areas distributed in rows and columns.

A second aspect of the present application provides a control method of an LED display device, applied to the LED display device according to any one of the first aspect of the present application, the control method comprising: the control circuit acquires data of an image to be displayed and generates a row driving signal of each row of LED display components of the LED display screen according to the data of the image to be displayed; the control circuit sequentially sends row driving signals of each row of LED display components of the LED display screen to the plurality of driving circuits; and the plurality of driving circuits drive the LED display components of the LED display screen to display row by row according to the row driving signals of each row of LED display components of the LED display screen.

In an embodiment of the second aspect of the present application, the plurality of driving circuits receives the row driving signals and drives the LED display assembly of the LED display screen to display row by row according to the row driving signals, including: for a first driving circuit in the plurality of driving circuits, when a row driving signal of the LED display screen comprises a driving signal of an LED display assembly in a display area driven by the first driving circuit, the first driving circuit determines the driving signal of the LED display assembly in the driven display area from the row driving signal and drives the LED display assembly of the LED display screen to display row by row according to the driving signal; when the row driving signals do not include driving signals of the LED display components in the display area driven by the first driving circuit, the first driving circuit sends the received row driving signals to the next driving circuit connected.

In an embodiment of the second aspect of the present application, the row driving signal includes: the data driving signal comprises a data driving signal, starting information, ending information and synchronous jitter information of one row of LED display components of the LED display screen; the data driving signals are used for driving the LED display assembly to display corresponding colors; the line scanning driving signal comprises a scanning driving signal, starting information, ending information and synchronous jitter information of a line of LED display components of the LED display screen; the scanning driving signal is used for driving the LED display assembly to display.

In an embodiment of the second aspect of the present application, the first driving circuit determines a driving signal of an LED display assembly in a driven display area from the row driving signals, and includes: when the first driving circuit receives a row data driving signal, the first driving circuit obtains a data driving signal of an LED display assembly in a display area driven by the first driving circuit in the row data driving signal according to starting information and ending information in the row data driving signal; when the first driving circuit receives a line scanning driving signal, the first driving circuit obtains a scanning driving signal of an LED display assembly in a display area driven by the first driving circuit in the line scanning driving signal according to starting information and ending information in the line scanning driving signal.

In an embodiment of the second aspect of the present application, the first driving circuit drives the LED display assembly of the LED display screen to display row by row according to the driving signal, including: the first driving circuit determines a synchronous jitter value according to the driving signal; and after the first driving circuit delays according to the synchronous jitter value, driving the LED display components of the LED display screen to display row by row according to the driving signal.

In an embodiment of the second aspect of the present application, one row of LED display components of the LED display screen driven by the row driving signal includes at least one LED display component in a first type of display area and includes at least one LED display component in a second type of display area.

In an embodiment of the second aspect of the present application, the plurality of driving circuits receives the row driving signals and drives the LED display assembly of the LED display screen to display row by row according to the row driving signals, including: a first driving circuit of the plurality of driving circuits receives the line data driving signal and the line scanning driving signal; the first driving circuit obtains a data driving signal of at least one LED display component in the first type display area in the data driving signal according to a starting position and an ending position in the data driving signal; the first driving circuit obtains a scanning driving signal of at least one LED display component in the first type display area in the line scanning driving signal according to a starting position and an ending position in the line scanning driving signal; the first driving circuit delays the data driving signal according to the synchronous jitter value in the data driving signal, and drives at least one LED display component in the first type display area to display corresponding colors according to the delayed data driving signal; the first driving circuit delays the scanning driving signal according to the synchronous jitter value in the line scanning driving signal, and drives at least one LED display component in the first type display area to display according to the delayed scanning driving signal.

In an embodiment of the second aspect of the present application, the plurality of driving circuits receives the row driving signals and drives the LED display assembly of the LED display screen to display row by row according to the row driving signals, including: a first driving circuit of the plurality of driving circuits receives the line data driving signal and the line scanning driving signal; the first driving circuit obtains a data driving signal of at least one LED display component in the second type display area in the data driving signal according to a starting position and an ending position in the data driving signal; the first driving circuit sends the line scanning driving signal to a second driving circuit in the driving circuits according to the starting position and the ending position in the line scanning driving signal; the second driving circuit obtains a scanning driving signal of at least one LED display component in the second type display area in the line scanning driving signal according to a starting position and an ending position in the line scanning driving signal; the first driving circuit delays the data driving signal according to the synchronous jitter value in the data driving signal, and drives at least one LED display component in the first type display area to display corresponding colors according to the delayed data driving signal; the second driving circuit delays the scanning driving signal according to the synchronous jitter value in the line scanning driving signal, and drives at least one LED display component in the second type display area to display according to the delayed scanning driving signal.

In an embodiment of the second aspect of the present application, the plurality of driving circuits receives the row driving signals and drives the LED display assembly of the LED display screen to display row by row according to the row driving signals, including: a first driving circuit of the plurality of driving circuits receives the line data driving signal and the line scanning driving signal; the first driving circuit sends the data driving signal to a second driving circuit in the plurality of driving circuits according to the starting position and the ending position in the data driving signal; the first driving circuit obtains a data driving signal of at least one LED display component in the second type display area in the line scanning driving signal according to a starting position and an ending position in the line scanning driving signal; the second driving circuit obtains a scanning driving signal of at least one LED display component in the second type display area in the data driving signal according to the starting position and the ending position in the data driving signal; the first driving circuit delays the scanning driving signal according to the synchronous jitter value in the line scanning driving signal, and drives at least one LED display component in the first type display area to display according to the delayed scanning driving signal; the second driving circuit delays the scanning driving signal according to the synchronous jitter value in the data driving signal, and drives at least one LED display component in the second type display area to display corresponding colors according to the delayed data driving signal.

In an embodiment of the second aspect of the present application, the plurality of driving circuits receives the row driving signals and drives the LED display assembly of the LED display screen to display row by row according to the row driving signals, including: a first driving circuit of the plurality of driving circuits receives the line data driving signal and the line scanning driving signal; the first driving circuit sends the line scanning driving signal and the line scanning driving signal to a second driving circuit in the driving circuits according to the starting position and the ending position in the line scanning driving signal and the line scanning driving signal; the second driving circuit obtains a data driving signal of at least one LED display component in the first type display area in the data driving signal according to a starting position and an ending position in the data driving signal; the second driving circuit obtains a scanning driving signal of at least one LED display component in the first type display area in the line scanning driving signal according to a starting position and an ending position in the line scanning driving signal; the second driving circuit delays the data driving signal according to the synchronous jitter value in the data driving signal, and drives at least one LED display component in the first type display area to display corresponding colors according to the delayed data driving signal; the second driving circuit delays the scanning driving signal according to the synchronous jitter value in the line scanning driving signal, and drives at least one LED display component in the first type display area to display according to the delayed scanning driving signal.

In an embodiment of the second aspect of the present application, the generating a driving signal of each row of LED display components of the LED display screen according to the data of the image to be displayed includes; and the control circuit determines synchronous jitter values in row driving signals of each row of LED display components of the LED display screen according to the frequency of acquiring the image to be displayed.

In summary, according to the LED display device and the control method thereof provided by the present application, the driving circuit is enabled to drive the LED display components of the LED display screen to display row by row in a time-division multiplexing manner, and one driving circuit is not required to be provided for each display region, so that a corresponding driving circuit can be provided in the first type display region, and the driving circuit is used for individually driving the LED display components in the first type display region to display. For the second type display area, the second type display area is driven together in a driving manner crossing the display area by two driving circuits correspondingly arranged for the first type display area. Thereby reducing the number of driving circuits provided in the LED display device and simplifying the complexity of the control circuit when the driving circuit controls the driving circuit to drive the LED assembly.

Drawings

In order to more clearly illustrate the embodiments of the application or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the application, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is a schematic diagram of an LED display device;

FIG. 2 is a schematic diagram of a display area and a driving circuit on an LED display screen;

FIG. 3 is a schematic diagram of a display area and a driving circuit on an LED display screen according to the present application;

FIG. 4 is a schematic diagram showing connection between a control circuit and a driving circuit in an LED display device according to the present application;

FIG. 5 is a schematic diagram illustrating connection of a driving circuit in an LED display device according to the present application;

fig. 6 is a schematic structural diagram of another embodiment of an LED display screen according to the present application;

fig. 7 is a schematic diagram of a control circuit and a driving circuit in the LED display device according to the present application.

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

The terms "first," "second," "third," "fourth" and the like in the description and in the claims and in the above drawings, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the application described herein may be implemented, for example, in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Fig. 1 is a schematic structural diagram of an LED display device. The LED display device 10 shown in fig. 1 may be an electronic apparatus having a display function such as a television, an interactive tablet, or the like. The LED display device 10 includes an LED display screen 101, a control circuit 102, and a plurality of driving circuits 103.

In one particular implementation, the LED display screen 101 includes MiniLED in a row and column arrangement. Or the LED display 101 includes microLED arranged in rows and columns. By applying MiniLED, microLED and other technologies, the LED display screen 101 has higher resolution and larger display size. However, for some LED display screens 101 requiring a resolution of 4K, it is generally necessary to have a capability of displaying 800 ten thousand pixels or more, and the LED display screen 101 needs to be divided into different display areas due to the condition limitation of the production process and displayed by dividing the image.

The LED display 101 shown in fig. 1 includes a plurality of housings 1011 distributed in rows and columns, specifically, 64 housings 1011 in 8 rows and 8 columns. Each housing 1011 includes a plurality of light panels 10111 arranged in rows and columns, specifically, 8 light panels 10111 in 2 rows and 4 columns. Each light panel includes 12 display areas. Each display area comprises LED display components distributed in rows and columns.

In one embodiment, the number of rows of the LED display assemblies is the same in the same row of display areas; the columns of the LED display components are the same in the display area of the same column. For example, each display area in row 1 includes 22 rows of LED display assemblies, each display area in row 2 includes 23 rows of LED display assemblies, and so on. For another example, each display area in column 1 includes 30 columns of LED display assemblies, each display area in column 2 includes 30 columns of LED display assemblies, and so on.

In one embodiment, the LED display assembly may be MiniLED or microLED, or the like.

The LED display device 10 shown in fig. 1 includes N driving circuits 103, which are denoted as driving circuit 1031 and driving circuit 1032 … … driving circuit 103N. Each driving circuit is used to drive LED display components in one display area on the LED display screen 101. The control circuit 102 is configured to split an image to be displayed into different parts according to display areas distributed in rows and columns on the LED display screen 101, and send split data driving signals to the driving circuits 103 of the display areas of the corresponding parts, so that each driving circuit 103 drives the LED display components in one display area to display the content of the corresponding part, and after all the display areas display the content of one part, the whole LED display screen 101 can display one frame of image.

Fig. 2 is a schematic diagram of a display area and a driving circuit on an LED display screen. By way of example, 4 display regions simplified on the LED display 101 are designated as a display region ①, a display region ②, a display region ③, and a display region ④ in a 2-row-2-column distribution. The 4 driving circuits in the LED display device can be used to drive the 4 display regions respectively, and the 4 driving circuits are also denoted as IC1, IC2, IC3 and IC4 in a 2-row and 2-column distribution manner. The LED display components in each display area are used for displaying on the display side, and each driving circuit is arranged on the non-display side of the display area controlled by the driving circuit. For example, IC1 is used to drive the LED display components of display area ①, IC2 is used to drive the LED display components of display area ②, IC3 is used to drive the LED display components within display area ③, and IC4 is used to drive the LED display components within display area ④.

In the example shown in fig. 2, the display area ① and the display area ② each include 22 rows and 30 columns of LED display elements, respectively, and the display area ③ and the display area ④ each include 23 rows and 30 columns of LED display elements, respectively. Each IC may be configured to sequentially drive the LED display assembly of the LED display screen to display row by scanning row by row.

However, when the LED display device 10 shown in fig. 1 is provided with the display areas and the driving circuits in the manner shown in fig. 2, one driving circuit is required for each display area, and each driving circuit is capable of driving only the LED display components in one display area. The number of driving circuits provided in the LED display device 10 is large, and the complexity of the control circuit of the LED display device to control the driving circuits to drive the LED assembly is high.

Based on this, the embodiment of the application provides an LED display device and a method thereof, which enable a plurality of driving circuits to drive LED display components in a set display area by a time-sharing multiplexing mode of the driving circuits, and also enable the plurality of driving circuits to jointly drive the LED display components in the display area without the driving circuits by a mode of crossing the display area, thereby reducing the number of the driving circuits set in the LED display device and simplifying the complexity of the control circuit for controlling the driving circuits to drive the LED components. The technical scheme of the application is described in detail below by specific examples. The following embodiments may be combined with each other, and some embodiments may not be repeated for the same or similar concepts or processes.

Fig. 3 is a schematic diagram of a display area and a driving circuit on an LED display screen according to the present application.

Also, 4 simplified display areas on the LED display screen are taken as an example. The 4 display areas are denoted as display area ①, display area ②, display area ③, and display area ④ in a 2-row-2-column distribution. 2 driving circuits in the LED display device may be used to drive the 4 display regions, wherein the 2 driving circuits are denoted as IC1 and IC2, respectively. IC1 is disposed on the non-display side of display area ① and IC2 is disposed on the non-display side of display area ④.

In this embodiment, among the 4 display areas, the display area ① and the display area ④ in which the ICs are not provided on the non-display side are referred to as a first type display area, and the display area ② and the display area ③ in which the ICs are not provided on the non-display side are referred to as a second type display area. It can be seen that the number of driving circuits 2 is smaller than the total number of display areas 4 and that the number of driving circuits 2 is equal to the number of display areas 2 of the first type.

In one embodiment, the control circuit 102 in the LED display device 10 may be configured to provide driving signals to a plurality of driving circuits, so that the plurality of driving circuits respectively drive the LED display components in the display area to display according to the received driving signals. Specifically, the control circuit 102 may sequentially send a row driving signal of a row of LED assemblies of the LED lower video to the plurality of driving circuits 103, so that the plurality of driving circuits 103 drive the LED display assemblies of the LED display screen to display row by row according to the received row driving signal.

In one embodiment, the row driving signals include a row driving signal and a row scanning driving signal. The data driving signals include data driving signals RGB of a row of LED display modules, and the driving circuit may drive the LED display modules to display corresponding colors according to the data driving signals. The line scanning driving signals comprise scanning driving signals SCAN of a line of LED display components, and the driving circuit can drive the LED display components to display according to the scanning driving signals.

Taking 4 display areas and 2 ICs as shown in fig. 3 as an example, for ICs 1 and 2 disposed on the non-display side of the first type display areas ① and ④ among the plurality of driving circuits, when the IC1 receives the data driving signals RGB1-22 of the 1 st to 22 nd row LED display elements in the display area ① transmitted by the control circuit 102, and the SCAN driving signals SCAN1-30 of the 1 st to 30 th columns in the display area ①. The IC1 controls the LED display elements in the display area ① to display according to the SCAN drive signals SCAN1-30, and controls the LED display elements in the display area ① to display the corresponding colors according to the data drive signals RGB 1-22.

Similarly, when IC2 receives the data driving signals RGB23-45 of the 23 rd-45 th rows in the display area ④ and the SCAN driving signals SCAN31-60 of the 31 th-60 th columns in the display area ④, which are sent by the control circuit 102. The IC2 controls the LED display elements in the SCAN display area ④ to display according to the SCAN drive signals SCAN31-60 and controls the LED display elements in the display area ④ to display the corresponding colors according to the data drive signals RGB 23-45.

In some embodiments, for the second type of display area, since no driving circuit is provided on the non-display side of the second type of display area, the LED display elements within the one second type of display area may be driven by two driving circuits in the same row and column as the second type of display area.

Taking the second type display area ② shown in fig. 3 as an example, IC1 and IC2 can be used to jointly drive the LED display components in the display area ②, the first type display area ① disposed on IC1 and the second type display area ② are disposed on the same row, and the first type display area ④ disposed on IC2 and the second type display area ② are disposed on the same column.

When IC1 receives the data driving signals RGB1-22 of the 1 st-22 th row LED display modules in the display area ② sent by the control circuit 102, IC2 receives the scanning driving signals SCAN31-60 of the 1 st-22 th row LED display modules in the display area ② sent by the control circuit 102. The IC2 controls the LED display elements in the display area ② to display according to the SCAN driving signals SCAN31-60, and at the same time, the IC1 controls the LED display elements in the display area ② to display the corresponding colors according to the data driving signals RGB 1-22.

Similarly, when IC1 receives SCAN drive signals SCAN1-30 of the 1 st-30 th row LED display modules in display area ③ sent by control circuit 102, IC2 receives data drive signals RGB23-45 of the 23 rd-45 th row LED display modules in display area ③ sent by control circuit 102. The IC1 controls the LED display elements in the display area ③ to display according to the SCAN driving signals SCAN1-30, and at the same time, the IC2 controls the LED display elements in the display area ③ to display the corresponding colors according to the data driving signals RGB23-45.

Therefore, when the LED display device 10 shown in fig. 1 is provided with the display regions and the driving circuits in the manner shown in fig. 3, it is not necessary to provide one driving circuit for each display region. Instead, a corresponding driving circuit may be disposed in the first type display area, and the second type display area may be driven across the display area by the driving circuit corresponding to the first type display area. Therefore, the number of driving circuits provided in the LED display device 10 according to the embodiment of the present application is small, so that the structural complexity and cost of the LED display device are reduced, and the complexity of the control circuit 102 in the LED display device 10 for controlling the small number of driving circuits is also reduced.

In one embodiment, fig. 4 is a schematic diagram illustrating connection between a control circuit and a driving circuit in the LED display device according to the present application. As shown in fig. 4, a plurality of driving circuits 1031 to 103N are sequentially connected in series. The control circuit 102 may be used to control all the driving circuits 103 and determine the time sharing mode and the time sharing timing of the driving circuits 103.

In one embodiment, the control circuit 102 may send the row driving signal to a first driving circuit 1031 of the plurality of driving circuits when sequentially sending the row driving signal of a row of LED display components of the LED display screen to the plurality of driving circuits, each of the driving circuits processing the row driving signal after receiving the row driving signal and sending to a next driving circuit connected in series. Finally, the last driving circuit 103N of the plurality of driving circuits transmits driving data to the control circuit 102, completing transmission of one sub-row driving signal.

In one embodiment, since the control circuit 102 of the LED display device 10 may provide a row of LED display driving signals to the driving circuit 103 corresponding to LED display components in different display areas, each driving circuit may determine to perform different processing on the row driving signals after receiving the row driving signals according to whether the driving signals of the LED display components in the display area corresponding to the driving circuit are included therein.

For example, a first driving circuit among a plurality of driving circuits is taken as an example. When the row driving signals received by the first driving circuit comprise driving signals of the LED display components in the display area driven by the first driving circuit, the first driving circuit obtains the driving signals of the LED display components in the driven display area from the row driving signals, so that the first driving circuit can drive the LED display components in the display area controlled by the first driving circuit on the LED display screen to display according to the driving signals.

When the row driving signal received by the first driving circuit does not include the driving signal of the LED display assembly in the display area driven by the first driving circuit, the first driving circuit may send the received row driving signal to the connected next driving circuit.

In some embodiments, communication between the control circuit 102 and the driving circuit 103 is required in a certain transmission protocol, so as to satisfy time-division multiplexing of the driving circuit 103 in the LED display device 10. For example, the line driving signals transmitted from the control circuit 102 to the plurality of driving circuits 103 include start information, end information, synchronization jitter information, and the like.

The row driving signals include a row driving signal and a row scanning driving signal. The data driving signals comprise data driving signals, starting information, ending information, synchronous jitter information and the like of one row of LED display components of the LED display screen. The line scanning driving signals comprise scanning driving signals, starting information, ending information, synchronous jitter information and the like of one line of LED display components of the LED display screen.

For example, a first driving circuit among a plurality of driving circuits is taken as an example. After the first driving circuit receives the row data driving signal, the data driving signal of the LED display assembly in the display area driven by the first driving circuit in the row data driving signal can be obtained according to the starting information and the ending information in the row data driving signal. And the first driving circuit can also delay the first time according to the synchronous jitter information in the data driving signal, and then display the corresponding color according to the LED display assembly in the display area driven by the data driving signal.

And after the first driving circuit receives the line scanning driving signal, the scanning driving signal of the LED display assembly in the display area driven by the first driving circuit in the line scanning driving signal can be obtained according to the starting information and the ending information in the line scanning driving signal. And the first driving circuit can also delay the second time according to the synchronous jitter information in the line scanning driving signal and then display according to the LED display components in the display area driven by the scanning driving signal.

Therefore, in the LED display device 10 provided in this embodiment, on the basis of setting fewer driving circuits 103, the design of the data transmission protocol between the control circuit 102 and the driving circuits 103 is also relied on to realize the time-sharing multiplexing and the space multiplexing of the driving circuits 103, and the pace of the picture displayed by the LED display device 10 is consistent and controlled differently in a innovative manner of the data transmission protocol. The cost of the LED display device 10 can be reduced, and the quality of the picture displayed by the LED display device 10 can be improved.

In an embodiment, fig. 5 is a schematic diagram illustrating connection of a driving circuit in an LED display device according to the present application. As shown in fig. 5, the driving circuit 1031 and the driving circuit 1032 in the LED display device 10 provided by the application are connected, so that the driving circuits can communicate with each other, and functions such as data transmission among the driving circuits are realized.

Next, a process in which the control circuit sequentially transmits a row driving signal of each row of LED display components of the LED display screen to the first driving circuit IC1 and the second driving circuit IC2, and the first driving circuit IC1 and the second driving circuit IC2 drive the LED display components of the LED display screen to display row by row according to the row driving signal will be described with reference to the display screen in fig. 3. The first drive circuit IC1 and the second drive circuit IC2 are connected in series, and the control circuit 102 is connected to a first drive circuit IC1, which is the first of the two drive circuits.

When the LED display screen shown in fig. 3 displays the display screen row by row, each row of LED display components of the LED display screen includes at least one LED display component in the first type display area and at least one LED display component in the second type display area. For example, row drive signals for 1-22 rows of the LED display screen include drive signals for LED display components within the first type display region ① and drive signals for LED display components within the second type display region ②. The row drive signals for the 23-45 rows of the LED display screen include drive signals for the LED display components within the second type display area ③ and drive signals for the LED display components within the first type display area ④.

Taking a row driving signal of the LED display assembly of the 1 st row of the LED display screen as an example, it can be understood that the row driving signal includes driving signals of 60 columns of LED display assemblies in the 1 st row, where the first 30 columns of LED display assemblies are located in the first type display area ①, and the second 30 columns of LED display assemblies are located in the second type display area ②.

The control circuit 102 transmits a line data driving signal and a line scanning driving signal of the 1 st line LED display element to the first driving circuit IC 1. And the start information and the end information in the row data signal and the row scanning driving signal.

After receiving the row data driving signal and the row scanning driving signal, the first driving circuit IC1 obtains the data driving signals RGB1- ① of the LED display modules of the 1 st row and the 1 st-30 th column in the first type display area ① in the row data driving signal according to the start position and the end position corresponding to the first driving circuit IC1 in the row data driving signal, and the first driving circuit IC1 obtains the scanning driving signals SCAN1-30- ① of the LED display modules of the 1 st row and the 1 st-30 th column in the first type display area ① in the row scanning driving signal according to the start position and the end position corresponding to the first driving circuit IC1 in the row scanning driving signal.

The first driving circuit IC1 may delay the data driving RGB1- ① signals according to the synchronous jitter value in the data driving signals, and drive the LED display modules of 1-30 columns in the first type display area ① to display the corresponding colors according to the delayed data driving signals RGB1- ①. Meanwhile, the first driving circuit IC1 delays the SCAN driving signals SCAN1-30- ① according to the synchronous jitter value in the row SCAN driving signals, and drives the LED display modules of 1-30 columns in the first type display area ① to display according to the delayed SCAN driving signals SCAN1-30- ①. After the delay, the first driving circuit IC1 may synchronize the SCAN driving signals RGB1- ① and the data driving signals SCAN1-30- ① supplied to the LED display modules of 1-30 columns in the first type display area ①.

Then, the first driving circuit IC1 further obtains the data driving signals RGB1- ② of the LED display modules of 31-60 columns in the second type display area ② in the row data driving signal according to the start position and the end position corresponding to the first driving circuit IC1 in the row data driving signal. And transmits the line scanning driving signal to the second driving circuit IC2 according to the start position and the end position corresponding to the second driving circuit IC2 in the line scanning driving signal.

After the second driving circuit IC2 receives the line scanning driving signal, the data driving signals SCAN31-60- ② of the LED display modules of 31-60 columns in the second type display area ② in the line scanning driving signal can be obtained according to the start position and the end position corresponding to the second driving circuit IC2 in the line scanning driving signal.

The first driving circuit IC1 may delay the data driving signals RGB1- ② according to the synchronous jitter value in the data driving signals, and drive the LED display modules of 31-60 columns in the second type display area ② to display the corresponding colors according to the delayed data driving signals RGB1- ②. Meanwhile, the second driving circuit IC2 delays the scanning driving signal according to the synchronous jitter value in the row scanning driving signal SCAN31-60- ②, and drives the LED display modules of 31-60 columns in the second type display area ② to display according to the delayed scanning driving signal SCAN31-60- ②. After the delay, the data driving signals RGB1- ② provided by the first driving circuit IC1 to the 31-60 columns of LED display devices in the second type display area ② and the SCAN driving signals SCAN31-60- ② provided by the second driving circuit IC2 to the 31-60 columns of LED display devices in the second type display area ② can be synchronized.

Similarly, taking a row driving signal of the 23 rd row of the LED display screen as an example, it can be understood that the row driving signal includes driving signals of 60 columns of the 23 rd row LED display assemblies, where the first 30 columns of LED display assemblies are located in the second type display area ③ and the second 30 columns of LED display assemblies are located in the first type display area ④.

The control circuit 102 transmits a line data driving signal and a line scanning driving signal of the 23 rd line LED display assembly to the first driving circuit IC 1. And the start information and the end information in the row data signal and the row scanning driving signal.

After receiving the row data driving signal and the row scanning driving signal, the first driving circuit IC1 obtains the data scanning driving signals RGB1SCAN1-30- ③22-① of the LED display components of 1-30 columns in the first two-type display area ①③ in the row data scanning driving signal according to the start position and the end position corresponding to the first driving circuit IC1 in the row data scanning driving signal, and the first driving circuit IC1 obtains the data driving signals SCAN1-30 of the LED display components of 1-30 columns in the first type display area ① in the row scanning signal according to the start position and the end position corresponding to the first two-driving circuit IC1IC2 in the row scanning data driving signal, and sends the row data driving signal to the second driving circuit IC 2.

After the second driving circuit IC2 receives the row data driving signal, the data driving signals RGB23- ③ of the LED display modules of 1-30 columns in the second type display area ③ in the row data signal can be obtained according to the start position and the end position corresponding to the second driving circuit IC2 in the row data driving signal.

The second driving circuit IC2 may delay the data driving signals RGB23- ③ according to the synchronous jitter value in the data driving signals, and drive the LED display modules of 1-30 columns in the second type display area ③ to display the corresponding colors according to the delayed data driving signals RGB23- ③. Meanwhile, the first driving circuit IC1 delays the scanning driving signals SCAN1-30- ③ according to the synchronous jitter value in the line scanning driving signals, and drives the LED display components of 1-30 columns in the second type display area ③ to display according to the delayed scanning driving signals SCAN1-30- ③. After the delay, the SCAN driving signals SCAN1-30- ③ provided by the first driving circuit IC1 to the 1-30 columns of LED display devices in the second type display area ③ can be synchronized with the data driving signals RGB23- ③ provided by the first driving circuit IC1 to the 1-30 columns of LED display devices in the second type display area ③.

Subsequently, the first driving circuit IC1 also transmits the data driving signal to the second driving circuit IC2 according to the start position and the end position corresponding to the second driving circuit IC2 in the data driving signal.

The second driving circuit IC2 obtains the data driving signals RGB23- ④ of the 23 rd row and 31 st-60 th column of the LED display components in the first type display area ④ in the row data driving signals according to the start position and the end position corresponding to the second driving circuit IC2 in the row data driving signals, and the second driving circuit IC2 obtains the SCAN driving signals SCAN31-60- ④ of the 23 rd row and 31 st-60 th column of the LED display components in the first type display area ④ in the row SCAN driving signals according to the start position and the end position corresponding to the second driving circuit IC2 in the row SCAN driving signals.

The second driving circuit IC2 may delay the data driving RGB23- ④ signals according to the synchronous jitter value in the data driving signals, and drive the LED display components of 31-60 columns in the first type display area ④ to display the corresponding colors according to the delayed data driving signals RGB23- ④. Meanwhile, the second driving circuit IC2 delays the SCAN driving signals SCAN31-60- ④ according to the synchronous jitter value in the row SCAN driving signals, and drives the LED display modules of 31-60 columns in the first type display area ④ to display according to the delayed SCAN driving signals SCAN31-60- ④. After the delay, the second driving circuit IC2 may synchronize the SCAN driving signals RGB23- ④ and the data driving signals SCAN31-60- ④ provided to the LED display modules of 31-60 columns within the first type display area ④.

In one embodiment, taking the LED display 101 shown in fig. 3 as an example, the control circuit sequentially sends the row driving signals of each row of LED display components of the LED display to the first driving circuit IC1 and the second driving circuit IC2, the data format of the data driving signals of the 1 st to 22 nd rows of the LED display is double 1 to 22 data width, the data of the first part 1 to 22a is the data driving signals of the LED display components of the first 1 to 30 columns, and the data of the second part 1 to 22b is the data driving signals of the LED display components of the second 31 to 60 columns. As shown in table 1 below:

TABLE 1

1-22a

1-22b

For SCAN driving signals SCAN1-30 and SCAN31-60 of rows 1-22 of the LED display screen, the SCAN driving signals SCAN switch across two chips, so that the SCAN design mode needs to be ensured from the aspect of protocol and needs to be satisfied on the synchronization mechanism of the chips. Therefore, in some embodiments, the control circuit may continue to receive the next row driving data and restart driving the LED display modules of the next row from the first column after the driving circuit sequentially drives the LED display modules of one row to display according to the received row driving data through the basic principle of the driving circuit display. That is, the driving circuit scans the first row of LED display elements according to the row driving data and then rescans the second row, and each data transfer of the LEDs is performed according to each row. The LED display module at which position is determined to display by scanning according to the scanning driving signal SCAN. So that scanning has the opportunity to achieve multiplexing. Therefore, the time delay of driving the LED display modules of the front 1-30 columns and the rear 31-60 columns respectively to the ICs 1 and the ICs 2 can be reduced to a certain time range by the synchronous jitter information in the driving signals, so that flicker between different display areas driven by the ICs 1 and the ICs 2 in the picture can be reduced.

In one embodiment, the synchronous jitter information may be used to control the timing of the inter-IC switching (shift), so that the synchronous jitter information may be carried on Command (CMD) bits of the row drive signal. Ensuring that the switching between IC1 and IC2 is synchronized for all ICs ensures accurate switching of IC1 and IC2 when driving a row of LED display modules in a time sharing manner. The optimal synchronous switching time in the picture is determined through communication by using the time period of a row driving signal and the transmission of CMD in the row driving signal, and the switching frequency division of each front link is finely adjusted through a return channel. Thus, the data format of the final overall image transfer is shown in table 2 below:

TABLE 2

The use of the row driving signal CMD mainly indicates the start of data, the start of CMD, the synchronized jitter, and the transfer control time of CMD. Such as frequency fluctuations, and Variable refresh frequency (VRR) REFRESH RATE, 24HZ, 30HZ, 50HZ, or 60HZ, frequency switching at the necessary nodes is required. The frequency can be controlled by a frequency generator before this. For example, when the control circuit controls the plurality of driving circuits to display one frame of image and then acquire one frame of image, the synchronous jitter value or the like in the row driving signal of each row of LED display assembly can be determined according to the frequency of the received image, and the synchronous jitter value can be added to the generated row driving signal. Therefore, when the frequency of the received image changes, the time jitter of the driving circuit is correspondingly adjusted, so that the frequency of image display is consistent with the frequency of the received image, and the overall display effect of the LED display screen is improved. In the control mode, the CMD realizes a cross-hardware synchronization mechanism to ensure the segmentation of the data channels, and the whole picture is coordinated in a frequency offset synchronization mode to achieve the feedback frequency synchronization.

In the embodiment of the application, the high-speed transmission of data is realized by innovating a protocol on a system and utilizing the time effect of line scanning, and the cross-chip multiplexing of lines and columns is realized in a cache or the reorganization of a data format. Thereby realizing the simplification of the chip. In the above embodiments, the LED display screen includes 4 display areas as an example.

Fig. 6 is a schematic structural diagram of another embodiment of an LED display screen according to the present application. Fig. 6 illustrates a 12-channel mode under a double drive implemented in principle according to an embodiment of the present application. The data arrow direction represents a data transmission channel, and the data channel is a high-speed channel. The control principle is the same, specifically, the IC1, the IC2 and the IC3 … … are connected in series according to the sequence of arrows in the figure. The control circuit sends the row driving data of the whole LED display screen to the IC1 through the socket, the IC1 reads the data driving signals RGB46-67 and RGB68-90, the scanning driving signals SCAN1-30 and SCAN31-60 and the like in the display area which need to be controlled, the LED display components in the display area are driven to display, then the IC1 sends the row driving data to the IC2, and the like.

For a single multiplexing design, the basic principle of synchronization is consistent with a double multiplexing design. Data grouping can be performed in the original manner across three ICs while data grouping, which is too high for the bandwidth and buffering requirements of the system. Therefore, it is one scheme to increase the buffering, but for the system cost, the frequency of the system can be increased by the mode of IC time division and area division multiplexing, and the control mode corresponding to 3 ICs and the data CMD mode are set, so that three groups of data (data of IC1, IC2 and IC 3) are needed to be buffered for each original IC, and the data of IC1 and IC2 is buffered by IC1, the data of IC2 and IC3 is buffered by IC2, and the data of IC3 and IC1 is buffered by IC 3. This way of common multiplexing achieves a partitioned cache of data. Meanwhile, because of the existence of the return channel, the data can arrive at the corresponding IC channel by taking the corresponding data CMD bit as a node.

Fig. 7 is a schematic diagram of a control circuit and a driving circuit in the LED display device according to the present application. As shown in fig. 7, a simplified 9 display areas on the LED display screen are taken as an example. The 9 display areas are denoted as display area ① … … display area ⑨ in a 3 row 3 column distribution. 3 driving circuits in the LED display device may be used to drive the 9 display regions, wherein the 3 driving circuits are denoted as IC1, IC2, and IC3, respectively. IC1 is provided on the non-display side of the display area ①, IC2 is provided on the non-display side of the display area ⑤, and IC3 is provided on the non-display side of the display area ⑨. Display area ①, display area ⑤, and display area ⑨ are first type of display areas. The other display areas are of a second type.

The control circuit may be used to send row drive signals to IC1, IC2 and IC 3. The IC1 drives the LED display elements in the display area ① to display according to the driving signals of the LED display elements in the display area ① in the row driving signals, the IC2 drives the LED display elements in the display area ⑤ to display according to the driving signals of the LED display elements in the display area ⑤ in the row driving signals, and the IC3 drives the LED display elements in the display area ⑨ to display according to the driving signals of the LED display elements in the display area ⑨ in the row driving signals.

Similarly, IC1 and IC2 drive the LED display elements in display area ② together according to the drive signal, IC1 and IC3 drive the LED display elements in display area ③ together according to the drive signal, IC1 and IC2 drive the LED display elements in display area ④ together according to the drive signal, IC2 and IC3 drive the LED display elements in display area ⑥ together according to the drive signal, IC1 and IC3 drive the LED display elements in display area ⑦ together according to the drive signal, and IC2 and IC3 drive the LED display elements in display area ⑧ together according to the drive signal.

In the foregoing embodiments, the control method and steps executed by the control circuit and the driving circuit in the LED display device provided by the embodiments of the present application are described, and in order to implement each function in the control method provided by the embodiments of the present application, the control circuit and the driving circuit as execution bodies may include a hardware structure and/or a software module, and each function may be implemented in the form of a hardware structure, a software module, or a hardware structure plus a software module. Some of the functions described above are performed in a hardware configuration, a software module, or a combination of hardware and software modules, depending on the specific application of the solution and design constraints. It should be noted that, it should be understood that the division of the modules of the above apparatus is merely a division of a logic function, and may be fully or partially integrated into a physical entity or may be physically separated. And these modules may all be implemented in software in the form of calls by the processing element; or can be realized in hardware; the method can also be realized in a form of calling software by a processing element, and the method can be realized in a form of hardware by a part of modules. The function of the above determination module may be implemented as a processing element that is set up separately, or may be integrated into a chip of the above apparatus, or may be stored in a memory of the above apparatus in the form of program codes, and may be called and executed by a processing element of the above apparatus. The implementation of the other modules is similar. In addition, all or part of the modules can be integrated together or can be independently implemented. The processing element described herein may be an integrated circuit having signal processing capabilities. In implementation, each step of the above method or each module above may be implemented by an integrated logic circuit of hardware in a processor element or an instruction in a software form. For example, the modules above may be one or more integrated circuits configured to implement the methods above, such as: one or more Application SPECIFIC INTEGRATED Circuits (ASIC), or one or more digital signal processors (DIGITAL SIGNAL processor, DSP), or one or more field programmable gate arrays (field programmable GATE ARRAY, FPGA), etc. For another example, when a module above is implemented in the form of a processing element calling program code, the processing element may be a general-purpose processor, such as a central processing unit (central processing unit, CPU) or other processor that can call program code. For another example, the modules may be integrated together and implemented in the form of a system-on-a-chip (SOC).

In the above-described embodiments, the steps performed by the control circuit and the driving circuit may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, produces a flow or function in accordance with embodiments of the present application, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another, for example, by wired (e.g., coaxial cable, optical fiber, digital Subscriber Line (DSL)), or wireless (e.g., infrared, wireless, microwave, etc.). The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains an integration of one or more available media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid state disk Solid STATE DISK (SSD)), etc.

The present application also provides a computer-readable storage medium storing computer instructions that, when executed, are operable to perform the steps of a control method as performed by a control circuit or a drive circuit in any of the foregoing embodiments of the application.

The embodiment of the application also provides a chip for running instructions, which is used for executing the steps of the control method executed by the control circuit or the driving circuit according to any one of the above embodiments of the application.

Embodiments of the present application also provide a computer program product comprising a computer program stored in a storage medium, from which at least one processor can read, the at least one processor executing the computer program implementing the steps of a control method as any one of the foregoing control or drive circuits of the present application.

In one embodiment, the control circuit and the driving circuit provided by the embodiments of the present application may be any one of a Pulse-width modulation (PWM) controller, a central processing unit (central processing unit, CPU), other general purpose processors, a digital signal processor (DIGITAL SIGNAL processor, DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (field-programmable GATE ARRAY, FPGA), or other programmable logic device, discrete gate, and transistor logic device, respectively.

Those of ordinary skill in the art will appreciate that: all or part of the steps to implement the above embodiments may be accomplished by hardware associated with program instructions. The foregoing program may be stored in a computer readable storage medium. The program, when executed, performs steps including the method embodiments described above; the storage medium includes various media capable of storing program codes such as ROM, magnetic disk, or optical disk.

Those of ordinary skill in the art will appreciate that: for the convenience of explanation of the technical solution of the present application, in the embodiment of the present application, the functional modules are described respectively, and the circuit devices in each module may overlap partially or completely, which is not intended to limit the protection scope of the present application.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application.

Claims

1. A light emitting diode, LED, display device, comprising:

The LED display screen comprises a plurality of display areas which are distributed in rows and columns, and each display area comprises a plurality of LED display components which are distributed in rows and columns; the plurality of display areas includes a plurality of first type display areas and a plurality of second type display areas;

a plurality of driving circuits, the number of which is equal to the number of the plurality of first type display regions, the plurality of driving circuits being disposed on a non-display side of the plurality of first type display regions;

The control circuit is used for sequentially sending row driving signals of one row of LED display components of the LED display screen to the plurality of driving circuits, so that the plurality of driving circuits drive the LED display components of the LED display screen to display row by row according to the row driving signals;

the driving circuits are arranged on the non-display side of the first type display area and used for driving the LED display components in the first type display area to display according to the row driving signals;

The driving circuits arranged on the same row and the same column in the second type display area are used for driving the LED display components in the second type display area to display according to the row driving signals.

2. The LED display device of claim 1, wherein the LED display device comprises,

The driving circuits are sequentially connected in series;

the control circuit is configured to send the row driving signal to a first one of the plurality of driving circuits, each of the plurality of driving circuits being configured to receive the row driving signal and send the row driving signal to a next driving circuit connected in series.

3. An LED display device according to claim 1 or 2, characterized in that,

The LED display screen comprises a plurality of boxes which are distributed in rows and columns, each box comprises a plurality of lamp panels which are distributed in rows and columns, and each lamp panel comprises a plurality of display areas which are distributed in rows and columns.

4. A control method of an LED display device, characterized by being applied to the LED display device according to any one of claims 1 to 3, the control method comprising:

The control circuit acquires data of an image to be displayed and generates a row driving signal of each row of LED display components of the LED display screen according to the data of the image to be displayed;

The control circuit sequentially sends row driving signals of each row of LED display components of the LED display screen to the plurality of driving circuits;

And the plurality of driving circuits drive the LED display components of the LED display screen to display row by row according to the row driving signals of each row of LED display components of the LED display screen.

5. The method of claim 4, wherein the plurality of driving circuits drive the LED display assemblies of the LED display screen to display row by row, comprising:

For a first driving circuit in the plurality of driving circuits, when a row driving signal of the LED display screen comprises a driving signal of an LED display assembly in a display area driven by the first driving circuit, the first driving circuit determines the driving signal of the LED display assembly in the driven display area from the row driving signal and drives the LED display assembly of the LED display screen to display according to the driving signal;

When the row driving signals do not include driving signals of the LED display components in the display area driven by the first driving circuit, the first driving circuit sends the received row driving signals to the next driving circuit connected.

6. The control method of claim 5, wherein the row driving signal comprises:

The data driving signal comprises a data driving signal, starting information, ending information and synchronous jitter information of one row of LED display components of the LED display screen; the data driving signals are used for driving the LED display assembly to display corresponding colors;

the line scanning driving signal comprises a scanning driving signal, starting information, ending information and synchronous jitter information of a line of LED display components of the LED display screen; the scanning driving signal is used for driving the LED display assembly to display.

7. The control method according to claim 6, wherein the first driving circuit determines a driving signal of the LED display element within the driven display area from the row driving signals, comprising:

When the first driving circuit receives a row data driving signal, the first driving circuit obtains a data driving signal of an LED display assembly in a display area driven by the first driving circuit in the row data driving signal according to starting information and ending information in the row data driving signal;

When the first driving circuit receives a line scanning driving signal, the first driving circuit obtains a scanning driving signal of an LED display assembly in a display area driven by the first driving circuit in the line scanning driving signal according to starting information and ending information in the line scanning driving signal.

8. The control method according to claim 6, wherein the first driving circuit drives the LED display assembly of the LED display screen to display row by row according to the driving signal, comprising:

And after the first driving circuit delays according to the synchronous jitter information, driving the LED display components of the LED display screen to display row by row according to the driving signals.

9. Control method according to any one of claims 6-8, characterized in that,

One row of LED display components of the LED display screen driven by the row driving signal comprises at least one LED display component in a first type display area and at least one LED display component in a second type display area.

10. The control method of claim 9, wherein the plurality of driving circuits receive the row driving signals and drive the LED display assembly of the LED display screen to display row by row according to the row driving signals, comprising:

A first driving circuit of the plurality of driving circuits receives the line data driving signal and the line scanning driving signal;

The first driving circuit obtains a data driving signal of at least one LED display component in the first type display area in the data driving signal according to a starting position and an ending position in the data driving signal;

The first driving circuit obtains a scanning driving signal of at least one LED display component in the first type display area in the line scanning driving signal according to a starting position and an ending position in the line scanning driving signal;

The first driving circuit delays the data driving signal according to the synchronous jitter value in the data driving signal, and drives at least one LED display component in the first type display area to display corresponding colors according to the delayed data driving signal;

The first driving circuit delays the scanning driving signal according to the synchronous jitter value in the line scanning driving signal, and drives at least one LED display component in the first type display area to display according to the delayed scanning driving signal.

11. The control method of claim 9, wherein the plurality of driving circuits receive the row driving signals and drive the LED display assembly of the LED display screen to display row by row according to the row driving signals, comprising:

The first driving circuit obtains a data driving signal of at least one LED display component in the second type display area in the data driving signal according to a starting position and an ending position in the data driving signal;

the first driving circuit sends the line scanning driving signal to a second driving circuit in the driving circuits according to the starting position and the ending position in the line scanning driving signal;

The second driving circuit obtains a scanning driving signal of at least one LED display component in the second type display area in the line scanning driving signal according to a starting position and an ending position in the line scanning driving signal;

the second driving circuit delays the scanning driving signal according to the synchronous jitter value in the line scanning driving signal, and drives at least one LED display component in the second type display area to display according to the delayed scanning driving signal.

12. The control method of claim 9, wherein the plurality of driving circuits receive the row driving signals and drive the LED display assembly of the LED display screen to display row by row according to the row driving signals, comprising:

the first driving circuit sends the data driving signal to a second driving circuit in the plurality of driving circuits according to the starting position and the ending position in the data driving signal;

The first driving circuit obtains a data driving signal of at least one LED display component in the second type display area in the line scanning driving signal according to a starting position and an ending position in the line scanning driving signal;

The second driving circuit obtains a scanning driving signal of at least one LED display component in the second type display area in the data driving signal according to the starting position and the ending position in the data driving signal;

The first driving circuit delays the scanning driving signal according to the synchronous jitter value in the line scanning driving signal, and drives at least one LED display component in the first type display area to display according to the delayed scanning driving signal;

The second driving circuit delays the scanning driving signal according to the synchronous jitter value in the data driving signal, and drives at least one LED display component in the second type display area to display corresponding colors according to the delayed data driving signal.

13. The control method of claim 9, wherein the plurality of driving circuits receive the row driving signals and drive the LED display assembly of the LED display screen to display row by row according to the row driving signals, comprising:

The first driving circuit sends the line scanning driving signal and the line scanning driving signal to a second driving circuit in the driving circuits according to the starting position and the ending position in the line scanning driving signal and the line scanning driving signal;

The second driving circuit obtains a data driving signal of at least one LED display component in the first type display area in the data driving signal according to a starting position and an ending position in the data driving signal;

The second driving circuit obtains a scanning driving signal of at least one LED display component in the first type display area in the line scanning driving signal according to a starting position and an ending position in the line scanning driving signal;

The second driving circuit delays the data driving signal according to the synchronous jitter value in the data driving signal, and drives at least one LED display component in the first type display area to display corresponding colors according to the delayed data driving signal;

the second driving circuit delays the scanning driving signal according to the synchronous jitter value in the line scanning driving signal, and drives at least one LED display component in the first type display area to display according to the delayed scanning driving signal.

14. The control method according to any one of claims 5 to 8, wherein the generating a driving signal for each row of LED display components of the LED display screen according to the data of the image to be displayed includes;

and the control circuit determines synchronous jitter values in row driving signals of each row of LED display components of the LED display screen according to the frequency of acquiring the image to be displayed.