WO2024098298A1 - Led显示控制方法、led显示屏及其控制***和相应组件 - Google Patents

Led显示控制方法、led显示屏及其控制***和相应组件 Download PDF

Info

Publication number
WO2024098298A1
WO2024098298A1 PCT/CN2022/130950 CN2022130950W WO2024098298A1 WO 2024098298 A1 WO2024098298 A1 WO 2024098298A1 CN 2022130950 W CN2022130950 W CN 2022130950W WO 2024098298 A1 WO2024098298 A1 WO 2024098298A1
Authority
WO
WIPO (PCT)
Prior art keywords
module
signal
display
control
serial
Prior art date
Application number
PCT/CN2022/130950
Other languages
English (en)
French (fr)
Inventor
褚建平
梁伟
韦桂锋
袁胜春
Original Assignee
西安诺瓦星云科技股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 西安诺瓦星云科技股份有限公司 filed Critical 西安诺瓦星云科技股份有限公司
Priority to PCT/CN2022/130950 priority Critical patent/WO2024098298A1/zh
Publication of WO2024098298A1 publication Critical patent/WO2024098298A1/zh

Links

Images

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes 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
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes 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 using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes 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 using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes 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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]

Definitions

  • the present application relates to the field of LED display technology, and specifically to an LED display control method, an LED display screen and its control system and corresponding components.
  • the corresponding components include a module control device, a parallel-serial conversion module, an LED display screen, a display module and a control module.
  • the LED display and its control system may include a module control device and a display, wherein the module control device can generate and distribute the image drive signal to be displayed, and uniformly control the multiple display modules of the LED display through multiple parallel interactive interfaces and connecting cables such as cables. It is found in actual applications that in this connection method, the number of display modules that the module control device can carry is limited. The more display modules of the LED display, the more interactive interfaces and display cables that the module control device needs to set for connecting the modules, resulting in more complicated wiring. Signal interference between cables can also easily lead to reduced signal stability of the LED display and its control system.
  • the purpose of the embodiments of the present application is to provide an LED display control method, an LED display screen and its control system and corresponding components.
  • the corresponding components include a module control device, a parallel-to-serial conversion module, an LED display screen, a display module and a control module, which can solve the problems of complex wiring and low stability of the current LED display screen and its control system.
  • a LED display control method comprising: a module control device generates a signal to be transmitted, the signal to be transmitted comprising an image driving signal to be displayed by each display module in a display unit, the display unit comprising a plurality of display modules connected in series; the module control device converts the signal to be transmitted into a first serial signal, and transmits the first serial signal to the plurality of display modules connected in series in the display unit; the control module of each display module in the display unit respectively parses the first serial signal to obtain the image driving signal to be displayed by each display module itself, so as to control each display module to display its own image driving signal to be displayed according to the control driving signal.
  • an LED display screen and a control system thereof including a module control device and a display unit connected to the module control device, the display unit including a plurality of display modules connected in series, and the display module being provided with a control module;
  • the module control device is used to generate a signal to be transmitted, convert the signal to be transmitted into a first serial signal, and transmit the first serial signal to the plurality of display modules connected in series in the display unit, the signal to be transmitted including an image driving signal to be displayed by each display module in the display unit;
  • the control module of the display module is used to parse the first serial signal to obtain the image driving signal to be displayed by each display module, so as to control each display module to display its own image driving signal to be displayed according to the control driving signal.
  • a LED display control method comprising: receiving an image frame signal, and generating a signal to be transmitted based on the image frame signal, the signal to be transmitted comprising an image driving signal to be displayed by each display module in a display unit, and a control driving signal corresponding to each display module, the display unit comprising a plurality of display modules connected in series; converting the signal to be transmitted into a first serial signal; and transmitting the first serial signal to the plurality of display modules connected in series in the display unit.
  • a module control device which is used to control a display unit, wherein the display unit includes a plurality of display modules connected in series, and the module control device includes a signal receiving module, a parallel-to-serial conversion module, a transmission module, and a serial output interface connected to the display unit;
  • the signal generating module is used to receive an image frame signal, and generate a signal to be transmitted according to the image frame signal, wherein the signal to be transmitted includes an image driving signal to be displayed by each display module in the display unit, and a control driving signal corresponding to each display module;
  • the parallel-to-serial conversion module is used to convert the signal to be transmitted into a first serial signal; and the transmission module is used to transmit the first serial signal to the plurality of display modules connected in series in the display unit through the serial output interface.
  • a parallel-to-serial conversion module is provided, which is configured in a module control device, wherein the module control device is connected to a display unit, and the display unit includes a plurality of display modules connected in series; the parallel-to-serial conversion module is used to convert the parallel signals to be transmitted generated by the module control device into a first serial signal, wherein the signals to be transmitted include an image driving signal to be displayed by each of the display modules in the display unit, and a control driving signal corresponding to each of the display modules, and the first serial signal is a signal transmitted by the module control device to the plurality of display modules connected in series in the display unit.
  • an LED display screen comprising one or more display units, at least some of which comprise a plurality of display modules connected in series, each of which is provided with a control module; the control module of the display module is used to parse a first serial signal sent by a module control device to obtain an image drive signal to be displayed by each of the display modules in the same display unit and a control drive signal corresponding to each of the display modules in the same display unit, and control the display module to display its own image drive signal to be displayed according to its own corresponding control drive signal.
  • a LED display module is provided, wherein the LED display module is connected in series with other display modules to form a display unit, the display unit is connected to a module control device, and the LED display module is configured with a control module; the control module of the display module is used to parse from a first serial signal sent by the module control device to obtain an image driving signal to be displayed by each of the display modules in the same display unit and a control driving signal corresponding to each of the display modules in the same display unit, and control the display module to display its own image driving signal to be displayed according to its own corresponding control driving signal.
  • a control module is provided, which is configured in a display module, wherein the display module is connected in series with other display modules to form a display unit, and the display unit is connected to a module control device; the control module is used to parse a first serial signal sent by the module control device to obtain an image driving signal to be displayed by each display module in the same display unit, and control the display of its own image driving signal to be displayed according to the control driving signal.
  • a computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the functions of the above-mentioned control module or parallel-to-serial conversion module are implemented.
  • a computer program product is provided.
  • the module control device realizes the function of the above-mentioned parallel-to-serial conversion module;
  • the display module realizes the function of the above-mentioned control module.
  • the beneficial effect of the LED display control method provided by the embodiment of the present application is that: in the implementation of the present application, the LED display screen and its control system do not need to send the image driving signal to be displayed by each display module to the corresponding display module separately, but convert the parallel image driving signal to be displayed into a first serial signal, and send the first serial signal to the multiple display modules connected in series in the display unit, and the first serial signal is transmitted between the various display modules connected in series in the display unit, so that each display module can parse and obtain its own image driving signal to be displayed after receiving the first serial signal, and display its own image driving signal to be displayed according to the control driving signal.
  • the image driving signal to be displayed by the multiple display modules connected in series can be transmitted through a single interactive interface of the module control device, the number of interactive interfaces for transmitting image driving signals in the LED display screen and its control system is reduced, the number of connecting lines between the module control device and the display module in the LED display screen and its control system is also reduced accordingly, and the wiring of the LED display screen and its control system is simpler.
  • the reduction of the interactive interface can reduce the probability of transmission abnormality problems due to interface abnormality, and the reduction of the connecting lines between the module control device and the display module can reduce the signal interference between the connecting lines, so the signal stability of the LED display screen and its control system is higher.
  • FIG1 is a schematic diagram of the structure of an LED display screen and its control system in the related art
  • FIG2 is a schematic diagram of the structure of a HUB-type module control device in the related art
  • FIG3 is a schematic diagram of the structure of an LED display screen and a control system thereof provided in an embodiment of the present application;
  • FIG4 is a schematic diagram of the structure of an LED display screen provided in an embodiment of the present application.
  • FIG. 5 is a schematic diagram of the structure of an LED display screen and a control system thereof using a conversion chip for parallel-to-serial signal conversion provided in an embodiment of the present application;
  • FIG6 is a schematic diagram 1 of a conversion chip provided in an embodiment of the present application.
  • FIG7 is a second schematic diagram of a conversion chip provided in an embodiment of the present application.
  • FIG. 8 is a second structural schematic diagram of an LED display screen and its control system using a main control chip for parallel-to-serial signal conversion provided in an embodiment of the present application;
  • FIG9 is a schematic diagram of a control chip provided in an embodiment of the present application.
  • FIG. 10 is a schematic diagram of a specific flow chart of an LED display control method applied to an LED display screen and a control system thereof provided in an embodiment of the present application;
  • FIG. 11 is a schematic diagram of the structure of backup between interactive interfaces provided in an embodiment of the present application.
  • FIG. 12 is a schematic diagram of the structure of the module control device backup provided in an embodiment of the present application.
  • FIG. 13 is a schematic diagram of a structure in which a single module control device is connected to multiple display units according to an embodiment of the present application;
  • FIG. 14 is a schematic diagram of a structure in which a single module control device provided in an embodiment of the present application is connected to multiple display units through a conversion chip and multiple interactive interfaces;
  • 15 is a schematic diagram of a structure in which a single module control device provided in an embodiment of the present application is connected to multiple display units through a main control chip and multiple interactive interfaces;
  • 16 is a schematic diagram of a structure for performing signal decompression using a compression algorithm of a main control chip and a decompression algorithm of a control chip provided in an embodiment of the present application;
  • 17 is a schematic diagram of a structure of using a compression chip and a decompression chip to perform signal decompression according to an embodiment of the present application;
  • FIG. 18 is a schematic diagram of a structure of a decompression chip of a display module for performing signal decompression according to an embodiment of the present application
  • 19 is a schematic diagram of a specific flow chart of an LED display control method applied to a module control device provided in an embodiment of the present application;
  • FIG20 is a schematic diagram of setting a GND signal pin between two pairs of TX signal pins according to an embodiment of the present application
  • FIG21 is a schematic diagram of the structure of a parallel-to-serial conversion module provided in an embodiment of the present application.
  • FIG22 is a schematic diagram of the structure of an LED display screen provided with a receiving device according to an embodiment of the present application.
  • 23 is a schematic diagram of the structure of a control module using a display drive signal interception unit provided in an embodiment of the present application.
  • 24 is a schematic diagram of the structure of a control module using an image drive signal interception unit and a control drive signal generation unit provided in an embodiment of the present application;
  • FIG. 25 is a schematic diagram of the structure of a control module using an image processing unit and a control drive signal generating unit provided in an embodiment of the present application.
  • an LED display screen and its control system may include a controller, a module control device and a display screen.
  • the display screen usually includes multiple boxes, each of which is encapsulated by one or more display modules.
  • the network transmission interface (or network port) of the controller can be connected to a module control device or multiple cascaded module control devices to send an image frame signal to the module control device through the network port. After the module control device receives the image frame signal, it can generate an image drive signal according to the image frame signal to control the display module in the box through the interactive interface.
  • the module control device can send the image drive signal to be displayed by each display module to the display module to which the image drive signal belongs through the HUB75 interface or the HUB320 interface.
  • the 16 parallel signals transmitted in parallel by 16 interactive interfaces are called an LED data group.
  • the signal interference between the cables can also easily lead to reduced signal stability of the LED display screen and its control system.
  • the present application proposes an LED display screen and its control system, which can convert the image drive signal that originally needs to be transmitted in parallel into a serial signal at the module control device, and connect multiple display modules in series into a display unit, so that the serial signal is transmitted between the multiple display modules connected in series in the display unit, and then a single interactive interface can carry multiple display modules connected in series through a single connecting line.
  • the image drive signals to be displayed by multiple display modules can be transmitted through a single interactive interface, the number of interactive interfaces required for the same number of display modules is reduced, and the number of connecting lines between the module control device and the display module is also reduced accordingly. Therefore, the wiring of the entire LED display screen and its control system is simpler.
  • the reduction of interactive interfaces can reduce the probability of transmission abnormalities due to interface abnormalities, and the reduction of connecting lines between the module control device and the display module can reduce signal interference between the connecting lines. Therefore, the signal stability of the display screen and its control system is higher.
  • the module control device no longer needs to transmit parallel signals through the interactive interface on the HUB board.
  • the serial output interface as the interactive interface on the module control device, the same number of display modules as in the related art, that is, the parallel loading scheme through the HUB board, can be loaded.
  • the parallel signals contained in the same LED data group in the related art will also be normalized into a serial signal, that is, the LED display and its control system support loading a standardized display screen with a fixed number of display modules, such as 16 or 24 modules, etc.
  • the LED display screen and its control system 30 may include an LED display screen, a module control device, and a control device.
  • the control device may include a controller and a host computer. In some implementations, the controller and the host computer may be the same device.
  • LED display and its control system is a system used to control the LED display and realize the LED display function. Specifically, the LED display and its control system can control the LED display through control devices, module control devices and more or fewer components, so that the LED display can display specific text, images, videos and other pictures.
  • a controller is a control device used to transmit source signals to a module control device, and may refer to a sending card or a device equipped with a sending card.
  • the controller may be configured with one or more network ports, and after acquiring the image frame signal, the image frame signal may be sent to the connected module control device through the network port.
  • the controller may acquire the image frame signal from a video source (or external source) connected to the controller, and the video source may transmit the image frame signal to the controller via a connection line such as an HDMI (High Definition Multimedia Interface), a DVI (Digital Visual Interface), or a DP (DisplayPort) line.
  • the controller may also acquire the image frame signal from the controller's internal memory (or internal source).
  • the module control device is a device used to control the display module in the LED display screen, which may refer to a scanning card, a receiving card, or a device equipped with a scanning card or a receiving card. In some implementations, the module control device may also specifically refer to a chip, such as a T-con chip.
  • the module control device may send an image drive signal to the display module so that the display module displays the corresponding picture.
  • the module control device may exchange information with the display module through an interactive interface, which may be a network port, a TYPE-C interface, a SATA (Serial Advanced Technology Attachment) interface, or other interfaces.
  • the interactive interface and the display module may be connected based on a designated connection line, which may be a network cable, a TYPE-C cable, a SATA cable, or other connection lines.
  • the host computer is a control device that supports user interaction, such as a mobile phone, computer, smart watch, etc. Through the host computer, users can configure some important parameters of the LED display and various components in its control system, for example, the screen resolution of the LED display, the control drive signal used, the display mode adopted, etc. It should be noted that the above-mentioned user interaction function can be realized by the software of the host computer, and when the host computer and the controller are the same device, the software used to realize the above-mentioned function can be integrated in the controller.
  • LED display screen is composed of several LED display modules, which can be used to display various information such as text, images, videos, etc.
  • the LED display screen can be a common LED display screen, or a microLED, miniLED, or a new type of LED display screen in the future, which is not limited by this application.
  • LED display module is also called light board.
  • Each LED display module can include LED lamp beads (also called pixel lamps), PCB board, driver chip (driver IC), and decoding chip (decoding IC).
  • the driver IC and the decoding IC can process the image drive signal according to the control drive signal, control the light board to light up or stop displaying, and thus realize the display function.
  • each pixel on the LED display screen may include one or more LED lamp beads, for example, may include three LED lamp beads of red, green, and blue, include four LED lamp beads of red, green, green, and blue, or include more or fewer LED lamp beads.
  • the so-called "controlling the light board to light up or stop displaying” is actually to control the LED lamp beads on the light board to light up or extinguish, so that each pixel presents the corresponding color.
  • Display unit In an LED display screen, several LED display modules can be connected in series by wire or wireless means, and multiple display modules connected in series can be called a display unit. Taking the LED display screen shown in FIG4 as an example, each dotted box in FIG4 can represent a display unit.
  • a single display unit can be connected to a single interactive interface of a module control device, so that the signal sent by the module control device through the interactive interface can be transmitted between multiple display modules connected in series.
  • the display unit includes: a first-level display module connected to the interactive interface, a second-level display module connected to the first-level display module, a third-level display module connected to the second-level display module, ..., an N-th-level display module connected to the N-1-th-level display module, where N is a positive integer greater than or equal to 2.
  • the module control device can transmit a signal to the first-level display module through the interactive interface, so that the signal is transmitted from the first-level display module to the second-level display module, and then from the second-level display module to the third-level display module, and so on, until it is transmitted to the N-th-level display module.
  • each display module can package independently, or package multiple display modules into a box for operation.
  • Each box can contain one or more display units, or can contain part of the display modules in the same display unit, which is not limited by the present application.
  • FIG5 shows a schematic diagram of the structure of an LED display screen and its control system 30 provided in an embodiment of the present application.
  • the LED display screen and its control system 30 may include a module control device 31 and a display unit 32 .
  • the module control device 31 may be used to generate a signal to be transmitted, convert the signal to be transmitted into a first serial signal, and transmit the first serial signal to a plurality of display modules connected in series in the display unit 32 .
  • the signal to be transmitted refers to a signal that needs to be transmitted to the display module, and may specifically include an image driving signal to be displayed by each display module in the display unit 32 .
  • the LED display screen and its control system 30 may further include a controller 33.
  • the controller 33 may send the image frame signal to be displayed by each display module to the connected module control device 31 through the network transmission interface.
  • the module control device 31 may generate an image driving signal according to the image frame signal by acquiring the image frame signal to be displayed by each display module sent by the controller 33, and convert the image driving signal as a signal to be transmitted into a first serial signal, so as to transmit the first serial signal to the multiple display modules connected in series in the display unit 32.
  • the image frame signal may include configuration information of a single frame image, such as black screen parameters, actual parameters, starting position information, etc.
  • the module control device 31 After the module control device 31 receives the image frame signal, it can perform signal processing in combination with the row signal to generate an image drive signal.
  • the image drive signal may refer to a signal used to realize video playback and picture playback, and may include three signals of R, G, and B.
  • the image drive signal may include multiple groups of signals, wherein each group of signals is a signal sent through a group of image drive signal pins of the module control device 31, and a group of image drive signal pins may include three pins of R, G, and B.
  • the image drive signal required for each display module may be one or more groups of signals.
  • the number of signal groups contained in the image drive signal is related to the number of display modules carried by the module control device 31 and the number of groups of image drive signal pins contained in the module control device 31. Assuming that each display module requires two groups of signals, the module control device 31 is provided with 32 groups of image drive signal pins, and the module control device 31 can carry 16 display modules. If the module control device 31 actually carries 10 display modules, the actual number of groups of image drive signals is 20. As an example, when transmitting the first serial signal, the image drive signal may include 64 groups of signals, 128 groups of signals, etc.
  • the module control device 31 can convert the signal to be transmitted into a first serial signal before signal transmission.
  • the module control device 31 can compress multiple parallel signals (i.e., image driving signals to be displayed by n display modules) into one serial high-speed signal.
  • the rate of multiple parallel signals is low. After being compressed into a serial high-speed signal, the transmission rate is higher, which is equivalent to that one signal transmitted per unit time can contain the information of n parallel signals originally transmitted per unit time.
  • the module control device 31 Since the signal transmitted to the display unit 32 is a serial signal, the module control device 31 no longer needs to use the interactive interface on the HUB board for transmitting parallel signals.
  • a serial output interface As an interactive interface on the module control device 31, the module control device 31 can carry multiple display modules that need to be carried based on the HUB board in the related technology.
  • the "LED data group" in the related technology can also be normalized into a first serial signal, and the first serial signal can be transmitted step by step in the multiple display modules connected in series in the display unit 32, so that each display module can receive the first serial signal.
  • the first serial signals received by the control modules of each display module may be the same or different.
  • the control module of each level of display module may directly forward it to the control module of the display module of the next level.
  • the first serial signals received by the control modules of each display module may be the same.
  • the control module of each level of display module may perform certain processing on the first serial signal and then forward it to the control module of the display module of the next level. The processing here includes but is not limited to updating and sorting the information carried in the first serial signal. At this time, the first serial signals received by the control modules of each display module may be different.
  • Each display module in the display unit 32 can be configured with a control module, and the control module of each display module can parse the first serial signal to obtain the image driving signal to be displayed by the display module itself, so as to control each display module to display its own image driving signal to be displayed according to the control driving signal.
  • the driver IC and decoding IC of each display module can process its own image driving signal according to its own control driving signal, control the light board to light up or stop displaying, and then realize the display function.
  • control driving signal is a signal used to control the driver IC and decoding IC on the light board, and can specifically include OE (Output Enable)/Gclk (global clock/grayscale clock) signal, Dclk (tracking clock/data clock) signal, Latch (LAT, latch) signal, refresh rate signal, and scan control signal (or decoding signal).
  • OE Output Enable
  • Gclk global clock/grayscale clock
  • Dclk tilt clock/data clock
  • Latch LAT, latch
  • refresh rate signal refresh rate signal
  • scan control signal or decoding signal
  • the image driving signal and the control driving signal may be collectively referred to as an LED display driving signal.
  • the LED display screen and its control system 30 do not need to send the image driving signal to be displayed by each display module to the corresponding display module separately, but convert the parallel image driving signals to be displayed into a first serial signal, and send the first serial signal to the multiple display modules connected in series in the display unit 32, and the first serial signal is transmitted between the display modules connected in series in the display unit 32, so that each display module can parse and obtain its own image driving signal to be displayed after receiving the first serial signal, and display its own image driving signal to be displayed according to the control driving signal.
  • the image driving signals to be displayed by the multiple display modules connected in series can be transmitted through a single interactive interface of the module control device 31, the number of interactive interfaces for transmitting image driving signals in the LED display screen and its control system 30 is reduced, and the number of connecting lines between the module control device 31 and the display module in the LED display screen and its control system 30 is also reduced accordingly, and the wiring of the LED display screen and its control system 30 is simpler.
  • the reduction of interactive interfaces can reduce the probability of transmission abnormality problems due to interface abnormalities, and the reduction of connecting lines between the module control device 31 and the display module can reduce signal interference between connecting lines, so the signal stability of the LED display screen and its control system 30 is higher.
  • the module control device 31 can be specifically used to convert the signal to be transmitted transmitted by the parallel input interface into a first serial signal output by the serial output interface through an internal parallel-to-serial conversion module.
  • the above-mentioned parallel input interface can be a transmission interface for transmitting single-ended digital signals
  • the transmission interface for transmitting single-ended digital signals can be a multi-channel interface for transmitting LVDS (Low-Voltage Differential Signaling) communication technology signals, or it can be an interface for transmitting TTL (Transistor Transistor Logic) communication technology signals.
  • the above-mentioned serial output interface can be a high-speed transmission interface, and the high-speed transmission interface can be an interface for transmitting Serdes serial communication technology signals.
  • the module control device 31 can convert low-speed signals such as multi-channel LVDS signals and TTL signals into high-speed Serdes signals. It should be understood that the present application is not limited to this, and it may also be other types of signals.
  • the parallel-to-serial conversion module of the module control device 31 can be a main control chip and a conversion chip.
  • the main control chip can generate a signal to be transmitted and transmit the signal to be transmitted to the conversion chip.
  • the conversion chip converts the signal to be transmitted generated by the main control chip into a first serial signal and transmits the first serial signal to the display unit 32 through an interactive interface. It should be understood that the interactive interface at this time is a serial output interface.
  • FIG6 and FIG7 respectively show two schematic diagrams of the conversion chip.
  • FIG6 shows a pin block diagram of a conversion chip for converting a TTL signal into a SerDes signal.
  • the conversion chip may include pins on both sides. Among them, one side of the pins may include: one or more groups of image drive signal pins (R1 to RX, G1 to GX, and B1 to BX), one or more scan control signal pins (A to X), one or more drive control signal pins (Dclk, LAT, OE/Gclk, etc.), and a return signal pin (X).
  • the pins on the other side may include: one or more pairs of TX pins, one or more pairs of RX pins.
  • the "pair of pins" refers to a positive pin and a negative pin, such as a pair of TX pins may include a TX+ pin and a TX- pin.
  • a group of image drive signal pins may include an image drive signal R pin, an image drive signal G pin, and an image drive signal B pin.
  • the conversion chip may also include SPI interface pins, serial port pins, clock input signal pins, reset signal pins, power supply signal pins, etc. It should be understood that each side pin can be used as an input side pin and/or an output side pin. In some implementations, the pins on both sides correspond to the pins on the input side and the pins on the output side, respectively.
  • the pins on the same side can be used as both the pins on the input side and the pins on the output side.
  • the pins on the same side are both the pins on the input side and the pins on the output side, that is, the input is from the pin on the same side and the output is from the pin on the same side.
  • FIG7 shows a pin block diagram of a conversion chip for converting multiple LVDS signals into SerDes signals.
  • the conversion chip may include pins on both sides. Among them, the pins on one side may include one or more pairs of LVDS TX pins, a pair of LVDS TCLK pins, and a return signal pin (X). The pins on the other side may include one or more pairs of TX pins. In some embodiments, the pins of the conversion chip may also include one or more pairs of LVDS RX pins, a pair of LVDS RCLK pins, and/or one or more pairs of RX pins.
  • the conversion chip may also include SPI interface pins, serial port pins, clock input signal pins, reset signal pins, power supply signal pins, etc.
  • the pins on each side may be used as pins on the input side and/or pins on the output side.
  • the pins on both sides correspond to the pins on the input side and the pins on the output side, respectively.
  • the pins on the same side may be used as pins on the input side or as pins on the output side.
  • the pins on the same side are both pins on the input side and pins on the output side, that is, input from the pins on the same side and output from the pins on the same side.
  • the number of pins of the serial output interface can be less than the number of pins of the parallel input interface. This method can reduce the number of signal pins and the number of interactive interfaces used when transmitting the same data. In other words, in this way, a module control device 31 with fewer interactive interfaces can be selected, or the same module control device 31 can be used to carry more display modules.
  • the main control chip can convert the signal to be transmitted into the first serial signal through integrated IP or internal circuit, for example, when the main control chip (such as FPGA) can directly output a high-speed serial signal, the conversion chip can be omitted, and the main control chip can realize the above conversion function. That is, the main control chip can generate the signal to be transmitted, and convert the signal to be transmitted into the first serial signal, so as to transmit the first serial signal to the multiple display modules connected in series in the display unit 32 through the interactive interface.
  • the main control chip such as FPGA
  • each display module in the display unit 32 may be configured with a control module, and the control module of the display module may be used to convert the received first serial signal into a first parallel signal, and intercept a sub-parallel signal from the first parallel signal.
  • the first parallel signal may include image drive signals to be displayed by multiple display modules connected in series in the display unit 32
  • the sub-parallel signal may include the image drive signal to be displayed by the display module itself.
  • the control module of the display module may intercept its own image drive signal to be displayed from the image drive signals to be displayed by multiple display modules. It should be understood that different display modules will intercept different sub-parallel signals.
  • the control module of the display module can convert the first serial signal transmitted by the serial input interface into the first parallel signal transmitted by the parallel output interface.
  • the serial input interface can be a high-speed transmission interface, specifically an interface for transmitting Serdes serial communication technology signals.
  • the parallel output interface can be a transmission interface for transmitting single-ended digital signals, specifically an interface for transmitting TTL communication technology signals, or specifically a multi-channel interface for transmitting LVDS communication technology signals.
  • the control module can convert the high-speed Serdes signal into a low-speed signal such as a TTL signal multi-channel, LVDS signal, etc. It should be understood that the present application is not limited to this, and there may also be other types of signals.
  • control module can be a control chip
  • FIG9 shows a pin block diagram of a control chip that converts a SerDes signal into a single-ended digital signal such as a TTL signal.
  • the control chip may include pins on both sides, wherein one side of the pins may include one or more pairs of RX pins and one or more pairs of TX pins.
  • the pins on the other side may include one or more groups of image drive signal pins (R1 to RX, G1 to GX, and B1 to BX), one or more scan control signal pins (A to X), one or more drive control signal pins (Dclk, LAT, OE/Gclk, etc.), SPI interface pins, and signal acquisition interface pins.
  • control chip may also include serial port pins, clock input signal pins, reset signal pins, power supply signal pins, and the like.
  • Each side pin can be used as a pin on the input side and/or a pin on the output side.
  • the pins on both sides correspond to the pins on the input side and the pins on the output side, respectively.
  • the pins on the same side can be used as both the pins on the input side and the pins on the output side.
  • the pins on the same side are both the pins on the input side and the pins on the output side, that is, input is received from the pins on the same side and output is received from the pins on the same side.
  • control module intercepts the image driving signal to be displayed by itself from the image driving signal to be displayed by each display module can be selected according to actual conditions, and the present application does not impose any limitation on this.
  • the first serial signal may carry the image driving signal to be displayed by each display module and the corresponding data identifier.
  • the control module may match the data identifier with its own reference identifier and intercept the image driving signal corresponding to the successfully matched data identifier.
  • the image driving signals to be displayed by each display module in the first serial signal can be sorted according to the order in which the display modules are connected in series, and data identifiers representing the order are assigned in order.
  • the control module of the display module converts the first serial signal into the first parallel signal
  • the data identifier can be matched with its own identifier to select the image driving signal of the corresponding order.
  • the acquisition method of the above-mentioned display module's own identification can be adjusted according to actual conditions.
  • the identification can be the display module's own identification.
  • the first serial signal can carry sorting information.
  • the module control device can transmit the first serial signal to the first-level display module in the display unit; the control module of each display module in the display unit 32 respectively updates the sorting information carried in the received first serial signal, and forwards the first serial signal after the updated sorting information to the next-level display module.
  • the sorting information carried by the first serial signal sent by the module control device 31 is 0, and the first-level display module can update the sorting information to 1.
  • the first-level display module can use the updated sorting information as its own identification to intercept the image drive signal corresponding to "1".
  • the first-level display module can forward the first serial signal with sorting information of 1 to the second-level display module.
  • the second-level display module can update the sorting information to 2, and accordingly, the second-level display module can use the updated sorting information as its own identification to intercept the image drive signal corresponding to "2".
  • the second-level display module can forward the first serial signal with sorting information of 2 to the third-level display module, and so on.
  • the above-mentioned identification can also be obtained by each display module in the display unit 32, which reports to the module control device in turn through the pins, circuits and other physical hardware structures of the control module, and uses the reporting sequence number as its own identification, thereby intercepting and using the data corresponding to its own identification information in the first serial signal, and the present application does not impose any restrictions on this.
  • the module control device 31 can assign a data identifier corresponding to the display module to the image driving signal to be displayed by each display module according to a configuration table such as screen configuration information.
  • the control module of the display module can obtain the configuration information, query the correspondence between itself and the data identifier from the configuration information, and thus intercept its own image driving signal. This is only an example and the present application is not limited to this.
  • the configuration information can be configured by the user's software on the host computer.
  • the configuration of the configuration information by the user in the software on the host computer is also called screen configuration operation.
  • the controller 33 the configuration information of the display screen, such as the position of each display module and the size of each display module (that is, the number of LED pixels controlled), so that the controller 33 can allocate the image frame data to the corresponding module control device 31.
  • the screen configuration operation can be used to enable the controller 33 to accurately allocate the image frame data to the corresponding module control device 31, and at the same time enable each display module to obtain the configuration information, obtain the corresponding relationship between itself and the data identifier, and then intercept its own image drive signal.
  • the display modules at each level can also forward the first serial signal from which the image drive signal corresponding to itself has been eliminated to the next level display module.
  • the control module of the display module can convert the first serial signal into a first parallel signal, and convert other sub-parallel signals other than its own sub-parallel signal back into serial signals, and forward them to the next level module.
  • the first level display module can convert the sub-parallel signals of the second to N-level display modules into new serial signals, and forward them to the second level display module
  • the second level display module can convert the sub-parallel signals of the third to N-level display modules into new serial signals, and forward them to the third level display module, and so on.
  • This implementation method can reduce the amount of information of the serial signal transmitted between display modules, and further improve the transmission stability.
  • the image driving signals to be displayed by multiple display modules connected in series can correspond to a screen image. Accordingly, each control module can intercept its own image area to be displayed from the screen image according to the coordinate range corresponding to its own image area to be displayed in the screen image, and obtain its own image driving signal to be displayed.
  • the display module can obtain the light board parameters set by the user on the host computer (such as chip type, resolution, scanning mode, number of data groups, data direction, etc.), and determine the coordinate range corresponding to the image area to be displayed based on the light board parameters.
  • the light board parameters set by the user on the host computer such as chip type, resolution, scanning mode, number of data groups, data direction, etc.
  • the control module of the display module can also be used to intercept the sub-serial signal corresponding to the display module itself from the first serial signal, and convert the sub-serial signal into a sub-parallel signal, and the sub-parallel signal includes the image driving signal to be displayed by the display module itself.
  • the control module of the display module first parses its own part (sub-serial signal) in the first serial signal, and then converts this part of the serial signal belonging to itself into a parallel signal, thereby obtaining its own image driving signal to be displayed, the image driving signal.
  • the first serial signal may carry each sub-serial signal and a corresponding data identifier
  • the control module may match the data identifier with its own reference identifier and select the sub-serial signal corresponding to the successfully matched data identifier.
  • the data length of each sub-serial signal can be the same, and the control module can select the sub-serial signal of the corresponding data byte according to the data length and the level to which the display module belongs. For example, assuming that the data length is a, when the display module is an N-th level display module, the sub-serial signal can be the part of the data bytes from (N-1) ⁇ a+1 to N ⁇ a in the first serial signal.
  • the first display module can intercept the part of the 1st to 8th bytes in the first serial signal to obtain its own sub-serial signal
  • the second display module can intercept the part of the 9th to 16th bytes in the first serial signal to obtain its own sub-serial signal, and so on.
  • the display module may also transmit signals other than the sub-serial signals corresponding to the display module itself in the received first serial signal to the next-level display module. That is to say, when each level of display module transmits a serial signal to the next-level display module, it may exclude its own sub-serial signal from the serial signal transmitted to the next-level display module.
  • the first-level display module may send the sub-serial signals of the second-level to N-level display modules to the second-level display module
  • the second-level display module may send the sub-serial signals of the third-level to N-level display modules to the fourth-level module, and so on. This implementation may reduce the amount of information of the serial signals transmitted between display modules, further improving the transmission stability.
  • FIG. 10 shows an LED display control method provided by the present application, which can be applied to the above-mentioned LED display screen and its control system 30 .
  • Step S1001 The module control device generates a signal to be transmitted.
  • the signal to be transmitted may include an image driving signal to be displayed by each display module in the display unit, and the display unit may include a plurality of display modules connected in series.
  • step S1002 the module control device converts the signal to be transmitted into a first serial signal, and transmits the first serial signal to a plurality of display modules connected in series in the display unit.
  • step S1003 the control module of each display module in the display unit parses the first serial signal to obtain the image driving signal to be displayed by each display module, so as to control each display module to display the image driving signal to be displayed according to the control driving signal.
  • the LED display screen and its control system 30 do not need to send the image driving signal to be displayed by each display module to the corresponding display module separately, but convert the parallel image driving signals to be displayed into a first serial signal, and send the first serial signal to the multiple display modules connected in series in the display unit 32.
  • the first serial signal is transmitted between the display modules connected in series in the display unit 32, so that each display module can parse and obtain its own image driving signal to be displayed after receiving the first serial signal, and display its own image driving signal to be displayed according to the control driving signal.
  • the image driving signals to be displayed by the multiple display modules connected in series can be transmitted through a single interactive interface of the module control device 31, and the number of interactive interfaces for transmitting image driving signals in the LED display screen and its control system 30 is reduced.
  • the aforementioned 16 HUB75 interfaces connected to 16 display modules can be converted into 1 interactive interface connected to 16 display modules connected in series, and the number of connecting lines between the module control device 31 and the display module in the LED display screen and its control system 30 is also reduced accordingly, and the wiring of the LED display screen and its control system 30 is simpler.
  • the reduction of interactive interfaces can reduce the probability of transmission abnormalities due to interface abnormalities, and the reduction of connecting lines between the module control device 31 and the display module can reduce signal interference between the connecting lines. Therefore, the signal stability of the LED display screen and its control system 30 is higher.
  • the module control device 31 no longer needs to transmit parallel signals through the interactive interface on the HUB board.
  • the serial output interface as the interactive interface on the module control device 31, the same number of display modules as in the related art, that is, the parallel loading scheme through the HUB board, can be loaded.
  • the parallel signals contained in the same LED data group in the related art will also be normalized into a serial signal, that is, the LED display screen and its control system 30 support loading a standardized display screen with a fixed number of display modules, such as 16 or 24 modules, etc.
  • the module control device 31 can also receive an image frame signal to generate multiple parallel signals, each parallel signal including an image frame signal of each display module in a display unit 32 to which a single module control device 31 is connected.
  • the module control device 31 transmits each parallel signal to the corresponding display unit 32.
  • the control module of each display module in the display unit 32 can obtain its own image frame signal from the parallel signal and generate its own image drive signal according to the image frame signal.
  • the module control device 31 can receive multiple LVDS signals (image frame signals), convert them into TTL signals (multiple parallel signals), and send each parallel signal to the corresponding display unit 32.
  • the present application provides a variety of different display functions based on the LED display screen and its control system 30 shown in Figure 5 or Figure 8, and the LED display control method shown in Figure 10, which are explained below with specific embodiments.
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • control module of the display module can also obtain its own module information and transmit the module signal in the form of a second serial signal to the module control device 31.
  • the second serial signal can be transmitted between multiple display modules connected in series in the display unit 32, and finally transmitted to the module control device 31 connected to the display unit 32.
  • the module signal refers to the information generated by the display module.
  • control module may also reserve interfaces such as SPI interface, serial interface Uart, external antenna interface TX, etc. These reserved interfaces may be connected to the light board Flash, MCU (Microcontroller Unit) and/or CPLD (Complex Programmable Logic Device), and are used to read the light board Flash, inspection and other module information from the light board, and send it to the connected module control device 31 by the display module.
  • the module control device 31 connected to the display unit 32 may receive the second serial signal, parse the second serial signal, and obtain the module signal of the display module, which is used for the user to view the module status, etc.
  • These reserved interfaces may be either serial transmission interfaces or parallel transmission interfaces, that is, the module information obtained by the control module may be either serial signals or parallel signals. If the module information is a serial signal, the control module may directly transmit the serial signal as a second serial signal to the module control device 31. If the module information is a parallel signal, the control module may also convert the parallel signal into a second serial signal, and then transmit the second serial signal to the module control device 31.
  • the module information may be the flash information of the light board, and the flash information of the light board may include the correction information of the LED lamp beads in the display module, and the module control device 31 may calibrate the display screen based on the correction information.
  • the correction information includes but is not limited to the correction parameters currently used by the display module, and the correction parameters may be a cold screen correction coefficient, a thermal compensation coefficient, etc.
  • the cold screen correction coefficient may be used to correct the display data to the target data when the display module is in a cold screen state
  • the thermal compensation coefficient may be used to convert the cold screen data and the hot screen data of the display module.
  • the module control device 31 may perform cold screen correction, thermal correction, grayscale correction and other corrections on the display module, so that the display effect of each display module in the LED display screen is more uniform.
  • the flash information of the light board may be a serial transmission signal obtained by the display module through the SPI interface, and the display module may directly transmit the flash information, wherein the SPI interface may include signals of pins such as SSEL, SCLK, MISO, and MOSI.
  • the module signal may carry module status information of the display module.
  • the module status information may include status information of the display module, circuit information, voltage information, temperature information, etc. of the display module.
  • the module signal may also carry the inspection information of the LED lamp points in the display module.
  • the inspection information may include the test results of whether the LED lamp beads can work normally.
  • the driver IC of the display module can detect the status of the LED lamp beads and generate the test results.
  • the module control device 31 can transmit the module information back to the controller 33 or the host computer, so that the controller 33 or the host computer can perform the bad point measurement of the LED lamp beads according to the inspection information.
  • the module signal may also carry information about the display module itself, such as the module serial number (S/N), batch number, material name, and other information.
  • S/N module serial number
  • batch number batch number
  • material name material name
  • the module status information and inspection information may be parallel signals obtained by the display module from the driver IC.
  • the display module may convert them into second serial signals and then transmit the module status information and inspection information through a Uart interface or a TX interface.
  • the module control module 31 can also determine the type of module information carried in the received second serial signal. If the module information is information used by the module control module 31 itself, for example, the module information is the aforementioned light board Flash information, the module control module 31 can directly use the second serial signal. If the module information is information to be transmitted by the module control module 31, for example, the module information is the aforementioned inspection information or module status information, the module control module 31 can also convert the second serial signal into a second parallel signal carrying the module information, and transmit the second parallel signal to the controller 33 or the host computer through the network port for the user to view in the software, etc.
  • the process of the module control device 31 converting the second serial signal into the second parallel signal can be implemented by the aforementioned parallel-to-serial conversion module (such as a main control chip or a conversion chip).
  • the conversion chip of the module control device 31 can convert the SerDes signal into a TTL signal to transmit the TTL signal to the controller 33.
  • the module control device 31 can read back various module information from the display module, and implement functions such as evaluation, calibration, and parameter adjustment based on the various module information.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • the signal can be transmitted bidirectionally between the multiple display modules connected in series.
  • the display unit 32 can receive two identical signals based on the bidirectional transmission function to achieve signal backup.
  • the first serial signal may include a main serial signal and a backup serial signal
  • the main serial signal and the backup serial signal are signals with different transmission directions sent to the same display unit 32.
  • the control module of the display module may parse the main serial signal and the backup serial signal to obtain a main image driving signal and a backup image driving signal, respectively.
  • control module can control each display module to display the main image drive signal according to the control drive signal.
  • control module can control each display module to display the backup image drive signal according to the control drive signal.
  • abnormality may mean that the signal quality is lower than the quality threshold, or the main serial signal is not received.
  • the display module may determine whether the main serial signal is abnormal based on the header of the received data packet, the packet loss rate of the data packet, etc.
  • normal operation may mean that the signal quality is higher than or equal to the quality threshold.
  • the main serial signal can be connected to the head (first level display module) of the display unit 32, and the backup serial signal can be connected to the tail (last level display module) of the display unit 32.
  • the main serial signal can be connected to the tail of the display unit 32, and the backup serial signal can be connected to the head of the display unit 32. This application is not limited to this.
  • the backup of the above signals can include three methods: backup between interactive interfaces, backup between module control devices, and backup between controllers:
  • the backup method between interactive interfaces is as follows: the module control device 31 may include a main serial output interface and a backup main serial output interface, and the main serial output interface and the backup serial output interface are different interactive interfaces of the same module control device 31, and are connected to the same display unit 32.
  • the module control device 31 can transmit the main serial signal to the display unit 32 through the main serial output interface, and transmit the backup serial signal to the display unit 32 through the backup serial output interface.
  • the display unit 32 can simultaneously receive the main serial signal transmitted by the main serial output interface and the backup serial signal transmitted by the backup serial output interface, and respectively parse to obtain the main image drive signal and the backup image drive signal.
  • each display module can display the main image drive signal according to the control drive signal.
  • each display module displays the backup image drive signal according to the control drive signal.
  • the backup method between module control devices is as follows: the display unit 32 can be connected to the main module control device and the backup module control device at the same time, and the main module control device and the backup module control device are different module control devices.
  • the LED display screen and its control system 30 can transmit the main serial signal to the display unit 32 through the main module control device, and transmit the backup serial signal to the display unit 32 through the backup module control device.
  • the display unit 32 can simultaneously receive the main serial signal sent by the main module control device and the backup serial signal sent by the backup module control device, and respectively parse to obtain the main image drive signal and the backup image drive signal.
  • each display module can display the main image drive signal according to the control drive signal.
  • each display module displays the backup image drive signal according to the control drive signal.
  • the main module control device and the backup module control device shown in FIG12 are connected to the same controller 33.
  • the main module control device and the backup module control device can also be connected to the main controller and the backup controller respectively, and the main controller and the backup controller are different controllers, thereby realizing backup between controllers.
  • the display module can display the main image drive signal generated according to the image frame signal sent by the main controller according to the control drive signal.
  • the display module can display the backup image drive signal generated according to the image frame signal sent by the backup controller according to the control drive signal.
  • each display module in the display unit 32 can receive at least two identical first serial signals.
  • the first serial signals of other paths can be used to realize the display function, thereby improving the signal transmission reliability of the LED display screen and its control system 30.
  • the driving IC and the decoding IC of the display module can display the image driving signal to be displayed according to the control driving signal.
  • the acquisition method of the control driving signal can be selected according to the actual situation.
  • the module control device 31 can obtain the control drive signal corresponding to each display module, and use the control drive signal and the image drive signal as the signal to be transmitted, and transmit them to each display module of the display unit 32 after converting them into a first serial signal.
  • the main control chip of the display module can perform serial-to-parallel conversion on the first serial signal, and parse and obtain the image drive signal to be displayed and the control drive signal corresponding to itself, so that the display module can display the image drive signal to be displayed according to the control drive signal corresponding to itself.
  • the control drive signal can be obtained by the module control device 31 from the controller 33 or the host computer, and the control drive signals corresponding to different display modules can be the same or different. Since the control module of the display module does not need to generate the control drive signal, in this embodiment, the display module can use a chip with relatively low processing power, which can reduce the cost of the display module.
  • the module control device 31 can obtain generation parameters for generating control drive signals corresponding to each display module, and send the generation parameters to multiple display modules connected in series in the display unit 32.
  • the generation parameters can also be obtained from the controller 33 or the host computer.
  • the transmission method of the generation parameters can be selected according to the actual situation. For example, it can be sent to multiple display modules connected in series in the display unit 32 together with the image drive signal as the first serial signal through the interactive interface (serial output interface).
  • the main control module of the display module can perform serial-to-parallel conversion on the first serial signal, parse and obtain the image drive signal to be displayed by itself and the generation parameters corresponding to the display module itself, and generate the control drive signal corresponding to itself according to the generation parameters corresponding to the display module itself, so that the display module can display the image drive signal to be displayed by itself according to the control drive signal corresponding to itself.
  • the generation parameters may specifically include parameters for generating OE/Gclk signals, Dclk signals, LAT signals, refresh rate signals, and scan control signals (or decoding signals).
  • the module control device 31 may obtain the generation parameters from the host computer, and the user may configure the generation parameters in the software of the host computer.
  • Each display module may generate the same control drive signal according to the same generation parameters configured by the user.
  • the module control device 31 can obtain the frequency, phase, duty cycle and other parameters of Dclk set by the user from the host computer, and use these parameters as generation parameters for generating the Dclk signal.
  • the module control device 31 can obtain the OE polarity, Gclk frequency and allocation coefficient set by the user from the host computer, and use these parameters as generation parameters for generating the OE/Gclk signal.
  • the module control device 31 can obtain the line blanking time, line break time, afterglow control end time, blanking mode, blanking potential, grayscale level, refresh rate and decoding method set by the user from the host computer, and use these parameters as generation parameters for generating the decoded signal.
  • the module control device 31 can send the generation parameters to the display unit 32 only when the generation parameters are first acquired or when the generation parameters change, without the need to send them in real time like image driving signals. Therefore, this embodiment helps to reduce the amount of data transmitted in real time, reduce the real-time transmission rate required by the LED display screen and its control system 30, and further improve the transmission stability of the LED display screen and its control system 30.
  • a single module control device 31 can carry n display units 32, where n is a positive integer greater than or equal to 1.
  • a module control device 31 with the same carrying capacity can carry different display units 32 through multiple interactive interfaces.
  • Embodiment 4 is a diagrammatic representation of Embodiment 4:
  • the module control device 31 can increase the total number of pixels carried by the module control device 31 to a preset number threshold by improving the processing capacity of the main control chip and/or the conversion chip, or by increasing the number of main control chips.
  • the number threshold can be adjusted according to actual conditions, for example, it can be increased to 512x1024, or even larger.
  • the number of interactive interfaces on a single module control device 31 can be multiple, for example, 4, 8, etc.
  • Each interactive interface in the module control device 31 can be connected to a different display unit 32, so that a single module control device 31 can carry multiple display units 32 at the same time.
  • FIG14 shows a schematic diagram of a single module control device 31 carrying multiple display units 32 at the same time through a main control chip, a conversion chip, and multiple interactive interfaces.
  • FIG15 shows a schematic diagram of a single module control device 31 carrying multiple display units 32 at the same time through a main control chip and multiple interactive interfaces.
  • the module control device 31 may include multiple parallel serial output interfaces, each serial output interface is respectively connected to a different display unit 32, and each serial output interface may be used to transmit the first serial signal of the connected display unit 32 to the display module in the connected display unit 32. Furthermore, when there are multiple display units 32, a single module control device 31 may carry different display units 32 respectively through multiple parallel serial output interfaces.
  • the total number of module control devices 31 used by the entire LED display screen and its control system 30 can be reduced.
  • the number of network cables between the controller 33 and the module control device 31 is reduced, and the system stability is improved.
  • 16 module control devices are required to light up a 1080P display screen in the related art, while the method provided in the embodiment of the present application can light up a 1080P display screen through the 4 network transmission interfaces of the controller 33.
  • Each network transmission interface carries 480x1080 pixels, and each network transmission interface uses a 4-port module control device. In other words, lighting up a 1080P display screen can be reduced to 4 module control devices.
  • the LED display screen and its control system 30 can respectively carry different display units 32 through multiple module control devices 31.
  • the multiple module control devices 31 can be independent of each other, or can be cascaded to form a module control device group shown in FIG5 to work together.
  • the multiple module control devices 31 may include one or more types of module control devices, and each type of module control device includes a different number of interactive interfaces.
  • the module control device 31 may be a single-port module control device, a dual-port module control device, a 4-port module control device, etc.
  • the module control device 31 included in the module control device group may be any one type or any multiple types of module control devices. In other words, the cascaded module control devices in the module control device group may have different load specifications.
  • the Gigabit Ethernet port can theoretically carry about 690,000 pixels. Assuming that a single 4-port module control device can carry a display area of 512x1024, the total number of pixels carried by an interactive interface is about 130,000. Six interactive interfaces are required. At this time, two single-port module control devices and one 4-port module control device can be cascaded to form a module control device group. Alternatively, three dual-port module control devices can be cascaded to form a module control device group.
  • the image frame signal acquired by the module control device 31 may be a compressed signal.
  • the controller 33 can be used to obtain the image frame signal to be displayed by each display module, compress the image frame signal to be displayed by each display module, obtain a compressed signal, and send the compressed signal to the connected module control device 31 through a network transmission interface.
  • the above compression process can be implemented by a compression chip or a main control chip in the controller 33.
  • the compression method of the image frame signal can be selected according to actual conditions.
  • the purpose of compression is to reduce the data volume of the image frame signal to be displayed by the display module.
  • FIG16 shows a schematic diagram of a controller that uses a main control chip to implement compression.
  • the main control chip can use an internal compression module to compress the image frame signal to be displayed by each display module.
  • the main control chip can perform compression processing through the circuit inside the compression module, or through the computer program stored inside the compression module, calling the corresponding compression algorithm (compression IP) for compression processing.
  • compression IP compression algorithm
  • Figure 17 shows a schematic diagram of a controller that uses a compression chip to implement compression.
  • the controller 33 can input the image frame signal to be displayed by each display module into the compression chip.
  • the compression chip can compress the image frame signal to be displayed by each display module to obtain a code stream, and store the code stream in the cache of the main control chip for transmission to the module control device 31 through the network transmission interface.
  • the LED display screen and its control system 30 need to realize the display function through decompression in the module control device 31 or the display module.
  • the module control device 31 can be used to decompress the compressed signal to obtain the image frame signal to be displayed by each display module, and generate an image driving signal for the corresponding display module according to the image frame signal to be displayed by each display module, and then use the image driving signal to be displayed by each display module as the signal to be transmitted, so as to convert the signal to be transmitted into a first serial signal and then send it to the display unit 32 through the interactive interface.
  • the module control device 31 can be used to use the compressed signal as the signal to be transmitted, in which case the signal to be transmitted may include the image frame signal to be decompressed of each display module.
  • the module control device 31 can convert the signal to be transmitted into a first serial signal, and send the first serial signal to the display unit 32.
  • the control module of each display module in the display unit 32 can parse the first serial signal to obtain the image frame signal to be decompressed of each display module, and decompress the image frame signal to be decompressed to obtain the image frame signal to be displayed by each display module, and then generate a corresponding image driving signal according to the image frame signal to be displayed by each display module.
  • the above decompression process can be implemented by a decompression chip, a main control chip, or a decompression chip of the display module in the module control device 31.
  • the decompression method can also be selected according to actual conditions.
  • the purpose of decompression is to restore the compressed signal to obtain the image driving signal actually used by the display module.
  • the main control chip of the module control device 31 can use an internal decompression module to decompress the compressed signal.
  • the main control chip of the module control device 31 can perform decompression processing through the circuit inside the decompression module, or can call the corresponding decompression algorithm (decompression IP) for decompression processing through the computer program stored inside the decompression module.
  • decompression IP decompression algorithm
  • the main control chip of the module control device 31 can transmit the code stream (compressed signal) to the decompression chip. After the decompression chip completes the decompression, it can output the video stream to the cache of the main control chip.
  • a decompression chip may be configured in the display module, and the decompression chip may decompress the code stream (the image frame signal to be decompressed) and store it in the cache.
  • the decompression chip may decompress the code stream (the image frame signal to be decompressed) and store it in the cache.
  • the controller 33 when the controller 33 transmits the image frame signal to the module control device 31, the image frame signal of each display module carried by each module control device 31 can be sent to the corresponding module control device 31. Accordingly, when the controller 33 compresses the image frame signal, it can compress the image frame signals transmitted to different module control devices 31 respectively, and transmit the compressed signals to the corresponding module control devices 31 through the network transmission interface.
  • the image frame signals sent to different module control devices 31 can be compressed using the same or different compression methods, and this application does not limit this.
  • the controller 33 can compress the image frame signal, so that the amount of data transmitted by the network port is reduced, so that the same network port can carry more display modules. Therefore, the number of network ports and the number of network cables required for the same LED display screen are less, the wiring of the entire LED display screen and its control system 30 is simpler, the stability is higher, and the hardware cost is reduced to a certain extent.
  • the signal transmitted by the interactive interface is also a compressed signal, and the data transmission volume is reduced, so that the same interactive interface can carry more display modules. Therefore, the number of interactive interfaces and the number of connecting wires required for the same LED display screen are less, and the entire LED display screen and its control system 30 are simpler and more stable, further reducing the hardware cost.
  • the controller 33 requires multiple 1G network transmission interfaces.
  • one 1G network transmission interface can be used to complete the loading.
  • the 1G network transmission interface can be connected to four cascaded module control devices 31 that can load 512x1024 pixels.
  • a single module control device 31 can carry more series modules. For an LED display screen of the same area, fewer module control devices 31 are required, thereby reducing the high cost problem caused by an excessive number of display control module devices and improving the cost-effectiveness of the LED display screen and its control system 30.
  • the maximum network transmission rate of the network transmission interface of the controller 33 may be greater than a preset rate threshold.
  • the rate threshold may be adjusted according to actual needs.
  • the above-mentioned network transmission interface may be a 1G network transmission interface, a 2G network transmission interface, a 5G network transmission interface, etc.
  • the higher the maximum network transmission rate of the network transmission interface the more total number of pixels that the network transmission interface can carry.
  • the same LED display screen can use fewer network transmission interfaces to achieve load carrying. Then the connection method of the entire LED display screen and its control system 30 will be simpler, which can further improve the stability of the LED display screen and its control system 30.
  • the module control device 31 connected to the network transmission interface can also adaptively improve the load capacity.
  • the main control chip of the module control device 31 can be a high-computing-power FPGA (Field Programmable Gate Array), or the module control device 31 can use multiple main control chips FPGA, or the main control chip can use an ARM (Advanced RISC Machines) chip or other dedicated chips, or the main control chip can be integrated with other module functions.
  • the LED display screen and its control system 30 may also include one or more of the following functions:
  • One or more of the above-mentioned main control chip, conversion chip, and control module of the display module may have a signal enhancement function, thereby eliminating chips such as 74HC245 for signal enhancement in the LED display screen and its control system 30 of the related art.
  • the control module of the above-mentioned conversion chip and/or display module can perform error detection, and the error detection can be used to detect whether there is any abnormality in the control module of the conversion chip and/or display module.
  • the above-mentioned LED display screen and its control system 30 may also include a power supply.
  • the module control device 31 obtains the power supply signal output by the unit, and transmits the power supply signal to the multiple display modules connected in series in the display unit 32 to realize the power supply of the display module.
  • the power supply signal is transmitted between the display modules connected in series in the display unit 32, thereby reducing the number of power supply lines required for the display module.
  • the power supply signal can be transmitted as part of the first serial signal through a connecting line that transmits the first serial signal.
  • the display module can be powered by the power supply signal carried in the first serial signal.
  • it is realized in the form of active Ethernet (Power Over Ethernet, POE).
  • One or more of the above-mentioned main control chip, conversion chip, and control module of the display module may be configured with an indicator light for locating its own position.
  • Each display module in the above-mentioned display unit 32 can be connected in series via wireless connection, and the control module of each display module in the display unit 32 can transmit the received first serial signal to the next-level display module that wirelessly communicates with the display module itself.
  • the LED display screen and its control system 30 can support any combination of the above-mentioned embodiments 1 to 7 when realizing the display function.
  • the LED display screen and its control system 30 can compress and decompress the signal while supporting the backup method between the interactive interfaces.
  • the LED display screen and its control system 30 can adopt a 5G network transmission interface and cascade multiple module control devices 31 while supporting the backup method between module control devices. Any combination of embodiments 1 to 7 belongs to the protection scope of this application.
  • an embodiment of the present application provides an LED display screen and a control system 30 thereof, which may include a module control device 31 and a display unit 32 connected to the module control device 31.
  • the display unit 32 may include a plurality of display modules connected in series, and each display module is configured with a control module.
  • the module control device 31 may be used to generate a signal to be transmitted, convert the signal to be transmitted into a first serial signal, and transmit the first serial signal to a plurality of display modules connected in series in the display unit 32.
  • the signal to be transmitted may include an image driving signal to be displayed by each display module in the display unit 32.
  • the control module of the display module may be used to parse the first serial signal to obtain the image driving signal to be displayed by each display module, so as to control each display module to display its own image driving signal to be displayed according to the control driving signal.
  • the above-mentioned LED display screen and its control system 30 may also include a power supply connected to the module control device 31.
  • the above-mentioned module control device 31 may also be used to obtain a power supply signal output by the power supply and transmit the power supply signal to multiple display modules connected in series in the display unit 32.
  • the above-mentioned module control device 31 is configured with a main control chip and a conversion chip; the main control chip of the module control device 31 can be used to generate a signal to be transmitted; the conversion chip of the module control device 31 can be used to convert the signal to be transmitted generated by the main control chip of the module control device 31 into a first serial signal.
  • the module control device 31 is configured with a main control chip; the main control chip of the module control device 31 can be used to generate a signal to be transmitted and convert the signal to be transmitted into a first serial signal.
  • the LED display screen and its control system 30 further include a controller 33 connected to the module control device 31; the controller 33 can be used to obtain the image frame signal to be displayed by each display module, and transmit the image frame signal to be displayed by each display module to the module control device 31.
  • the module control device 31 can be used to obtain the image frame signal to be displayed by each display module sent by the controller 33, and generate a signal to be transmitted according to the image frame signal.
  • a LED display control method is also provided, which can be applied to a module control device 31 , and includes steps S1901 to S1903 .
  • Step S1901 receiving an image frame signal, and generating a signal to be transmitted according to the image frame signal.
  • the signal to be transmitted may include an image drive signal to be displayed by each display module in the display unit, and a control drive signal corresponding to each display module.
  • the display unit may include multiple display modules connected in series.
  • Step S1902 convert the signal to be transmitted into a first serial signal.
  • Step S1903 transmitting the first serial signal to a plurality of display modules connected in series in the display unit.
  • the specific implementation process of the above LED display control method may refer to the description of the module control device 31 in the aforementioned LED display screen and its control system 30 .
  • a module control device 31 is also provided, and the module control device 31 is connected to a display unit 32, and the display unit 32 may include a plurality of display modules connected in series.
  • the module control device 31 may include a signal generating module, a parallel-to-serial conversion module, a transmission module, and a serial output interface connected to the display unit 32.
  • the signal generating module can be used to receive the image frame signal and generate the signal to be transmitted according to the image frame signal.
  • the signal to be transmitted may include the image driving signal to be displayed by each display module in the display unit 32 and the control driving signal corresponding to each display module.
  • the parallel-to-serial conversion module can be used to convert the signal to be transmitted into a first serial signal.
  • the transmission module may be configured to transmit the first serial signal to a plurality of display modules connected in series in the display unit 32 via a serial output interface.
  • the parallel-to-serial conversion module may be a main control chip or a conversion chip in the aforementioned module control device 31 .
  • the parallel-to-serial conversion module can be used to convert the signal to be transmitted transmitted by the parallel input interface into a first serial signal output by the serial output interface.
  • the serial output interface can be an interface for transmitting Serdes serial communication technology signals.
  • the parallel input interface can be an interface for transmitting TTL communication technology signals, or can be a multi-channel interface for transmitting LVDS communication technology signals.
  • the number of pins of the serial output interface can be less than the number of pins of the parallel input interface.
  • serial output interfaces there may be multiple serial output interfaces, each of which is used to transmit the first serial signal of the connected display unit 32 to the display module in the connected display unit 32 .
  • the serial output interface is connected to the display unit 32 via at least one pair of connecting wires.
  • Each pair of connecting wires can be used to transmit signals.
  • the specific number of connecting wires can be adjusted according to actual conditions. If the module control device 31 carries more display modules, it can be connected to the display unit 32 via multiple pairs of connecting wires. Taking two pairs of connecting wires as an example, one pair of connecting wires can be used to transmit uplink signals, and the other pair of connecting wires can be used to transmit downlink signals.
  • the serial output interface may include one or more wire ground pins (GND) and multiple pairs of signal transmission pins, and the wire ground pins may be arranged between any two pairs of signal transmission pins among the multiple pairs of signal transmission pins.
  • the signal transmission pins include but are not limited to RX signal pins and TX signal pins.
  • the above-mentioned serial output interface may include, in sequence: one or more pairs of TX signal pins, one or more pairs of RX signal pins, and one or more GND signal pins. Since the amount of data transmitted by the RX signal pins is relatively small, the number of RX signal pins may be less than the number of TX signal pins.
  • the GND signal pin may be arranged in the middle of other pins, for example, the GND signal pin may be arranged between a pair of TX signal pins and a pair of RX signal pins, or between a pair of TX signal pins and another pair of TX signal pins, which may reduce the probability of signal interference problems between signal pins to a certain extent.
  • pins 1, 4, 5, and 8 may be GND signal pins
  • pins 2 and 3 may be a pair of TX signal pins
  • pins 6 and 7 may be a pair of RX signal pins.
  • pins 1 and 2 may be a pair of TX signal pins
  • pins 3 and 4 may be GND signal pins
  • pins 5 and 6 may be another pair of TX signal pins
  • pins 7 and 8 may be a pair of RX signal pins.
  • the specific functions of the module control device 31 can also refer to the description of the module control device 31 in the aforementioned LED display screen and its control system 30 .
  • the module control device 31 can transmit the image drive signal and the control drive signal to the multiple display modules connected in series in the display unit 32 in the form of a first serial signal.
  • the control module of the display module does not need to generate the control drive signal, and a chip with relatively low processing power can be selected, which can reduce the cost of the display module.
  • the signal transmitted by the module control device 31 to the display module is a serial signal, the module control device 31 no longer needs to transmit parallel signals through the interactive interface on the HUB board, or transmit signals in parallel through the HUB-type interface of the traditional module control device.
  • the serial output interface as the interactive interface on the module control device 31
  • the same number of display modules can be loaded as in the related art, that is, in the parallel loading scheme through the HUB board.
  • the parallel signals contained in the same LED data group in the related art will also be normalized into a serial signal, that is, the LED display screen and its control system 30 support loading a standardized display screen with a fixed number of display modules, such as 16 or 24 modules.
  • the embodiment of the present application also provides a parallel-to-serial conversion module, which is configured in the module control device 31.
  • the module control device 31 is connected to the display unit 32.
  • the parallel-to-serial conversion module can be used to convert the parallel signals to be transmitted generated by the module control device 31 into a first serial signal, wherein the signals to be transmitted may include image driving signals to be displayed by each display module in the display unit 32, and control driving signals corresponding to each display module.
  • the first serial signal can be a signal transmitted from the module control device 31 to multiple display modules connected in series in the display unit 32.
  • the parallel-to-serial conversion module may be a main control chip or a conversion chip in the aforementioned module control device 31 .
  • the parallel-to-serial conversion module may also be used to convert the second serial signal acquired by the module control device 31 into a second parallel signal, where the second parallel signal is a module signal of the display module.
  • the pins of the parallel-to-serial conversion module may include: one or more pairs of LVDS TX pins, a pair of LVDS TCLK pins, and one or more pairs of TX pins.
  • one or more pairs of LVDS RX pins, a pair of LVDS RCLK pins, and/or one or more pairs of RX pins may also be included.
  • Figure 21 shows a schematic diagram of the structure of the parallel-to-serial conversion module, which may include a first transmission unit, a serial-to-parallel conversion unit, a parallel-to-serial conversion unit, and a second transmission unit.
  • the first transmission unit may refer to a parallel transmission interface connected to the network port of the controller 33.
  • the second transmission unit may refer to an interactive interface connected to the display unit.
  • the first transmission unit may be used to receive an image frame signal and generate a signal to be transmitted according to the image frame signal, or to output a second parallel signal.
  • the parallel-to-serial conversion unit may be used to convert the to-be-transmitted signal generated by the module control device 31 into a first serial signal;
  • the serial-to-parallel conversion unit may be used to convert the second serial signal acquired by the module control device 31 into a second parallel signal.
  • the second transmission unit can be used to output the first serial signal, or to obtain the second parallel signal.
  • the above-mentioned parallel-to-serial conversion module may also include a cache unit, a clock control unit and other units that assist in realizing the functions of the parallel-to-serial conversion module.
  • the parallel-to-serial conversion module may include a processor and a memory, and a computer program may be stored in the memory.
  • the computer program When the computer program is executed by the processor, the functions of the first transmission unit, the parallel-to-serial conversion unit, the serial-to-parallel conversion unit, and the second transmission unit in the parallel-to-serial conversion module may be realized.
  • the LED display screen may further include a receiving device for receiving the module control device 31, wherein at least one module control device is provided on the receiving device, and each module control device is connected to at least one display unit.
  • the receiving device may be integrally connected to the display unit or separately provided.
  • the user only needs to connect the controller 33 to the module control device 31 on the accommodating device, and the wiring is simpler.
  • this method does not require each display module to be directly connected to the module control device 31 through a connecting line. Only one display module in the display unit 32 needs to be directly connected to the module control device 31 to obtain the first serial signal sent by the module control device 31 and transmit the first serial signal to other display modules in series. It can be seen that the number of connecting lines between the module control device 31 and the LED display screen is reduced, so the wiring of the entire LED display screen and its control system 30 is simpler.
  • an LED display module is also provided, which can be connected in series with other display modules to form a display unit 32, the display unit 32 is connected to the module control device 31, and the LED display module is configured with a control module.
  • the control module of the display module can be used to parse the first serial signal sent by the module control device 31 to obtain the image drive signal to be displayed by each display module in the same display unit 32 and the control drive signal corresponding to each display module in the same display unit 32, and control the display module to display its own image drive signal to be displayed according to its own corresponding control drive signal.
  • the specific functions of the above display module can also refer to the description of the display module in the display unit 32 in the aforementioned LED display screen and its control system 30.
  • a control module is further provided, which is configured in the display module, and the display module can be connected in series with other display modules to form a display unit 32, and the display unit 32 is connected to the module control device 31.
  • the control module can be used to parse the first serial signal sent by the module control device 31 to obtain the image driving signal to be displayed by each display module in the same display unit 32, and control the display of its own image driving signal to be displayed according to the control driving signal.
  • control module can be specifically used to convert the first serial signal input through the serial input interface into the image drive signal and control drive signal to be displayed by each display module output by the parallel output interface, so as to parse the image drive signal to be displayed by each display module in the same display unit 32 and obtain the image drive signal to be displayed and the corresponding control drive signal.
  • the serial input interface can be an interface for transmitting Serdes serial communication technology signals.
  • the parallel output interface can be a multi-channel interface for transmitting LVDS communication technology signals, or it can be an interface for transmitting TTL communication technology signals.
  • control module may be specifically configured to parse the first serial signal to obtain its own image driving signal to be displayed, and generate its own corresponding control driving signal according to the generation parameters sent by the module control device 31 .
  • control module may also be used to obtain module information of the display module and convert the module information into a second serial signal, where the second serial signal is a signal transmitted from the display module to the module control device 31 .
  • the pins of the control module may include: one or more pairs of RX pins, one or more pairs of TX1 pins, one or more groups of image drive signal pins (R1 to RX, G1 to GX, and B1 to BX), one or more scan control signal pins, one or more drive control signal pins, and SPI interface pins.
  • the control module may include a serial-to-parallel conversion unit, a parallel-to-serial conversion unit, a forwarding unit, a protocol parsing unit, a display drive signal interception unit, a spread spectrum unit, a command processing unit, and an arbitration unit.
  • the serial-to-parallel conversion unit may be used to convert the first serial signal into an image driving signal to be displayed by each display module and a control driving signal corresponding to each display module.
  • the forwarding unit can be used to process the image drive signal to be displayed by each display module and the control drive signal corresponding to each display module, so as to transmit the processed signal to the next-level display module connected in series with the display module through the conversion of the parallel-serial conversion unit.
  • the processing of the forwarding unit can include updating the sorting information, and then generating a new first serial signal forwarded to the next-level display module through the conversion of the parallel-serial conversion unit.
  • the protocol parsing unit can be used to parse the image drive signal and the control drive signal. Specifically, the parsing of the protocol parsing unit can include distinguishing the image drive signal from the control drive signal.
  • the display driving signal interception unit can be used to intercept the image driving signal to be displayed by the display module itself from the image driving signal to be displayed by each display module, and intercept the control driving signal corresponding to the display module itself from the control driving signal corresponding to each display module.
  • the spread spectrum unit can be used to perform spread spectrum processing according to the image drive signal to be displayed by the display module itself and the control drive signal corresponding to the display module itself, so as to control the display module to display the image drive signal to be displayed according to its corresponding control drive signal.
  • Spread spectrum processing can improve the EMC (electromagnetic compatibility) effect, including but not limited to RGB mismatching, filtering and other processing.
  • the command processing unit can be used to process commands to obtain module information of the display module.
  • the command processed by the command processing unit can be a readback command sent by the host computer or the module control device, or a light board command sent by the light board.
  • the command processing unit can obtain the inspection information, the light board FLASH information and the module status information through the inspection unit, the SPI management unit and the ADC acquisition unit according to the readback command.
  • the arbitration unit can be used to process the module information and the signal received from the next level display module.
  • the specific processing includes but is not limited to packaging, transmitting the module information and the signal received from the next level display module according to a certain transmission order, etc.
  • the parallel-to-serial conversion unit may be used to convert the module information into a second serial signal.
  • control module may further include a conversion unit, which is connected to the serial-to-parallel conversion unit and/or the parallel-to-serial conversion unit and can be used to configure the circuit direction so that a signal (such as a return signal, a signal received from a next-level display module, a first serial signal, etc.) is input or output from an interface at a corresponding position.
  • a signal such as a return signal, a signal received from a next-level display module, a first serial signal, etc.
  • serial-to-parallel conversion unit and parallel-to-serial conversion unit can be two respectively, one serial-to-parallel conversion unit and one parallel-to-serial conversion unit can be used to receive and transmit the main serial signal, and the other serial-to-parallel conversion unit and another parallel-to-serial conversion unit can be used to receive and transmit the backup serial signal and module information.
  • Figure 24 shows a second structural diagram of the control module.
  • the display drive signal interception unit of the control module is replaced by an image drive signal interception unit and a control drive signal generation unit.
  • control module may include a serial-to-parallel conversion unit, a parallel-to-serial conversion unit, a forwarding unit, a protocol parsing unit, an image driving signal interception unit, a control driving signal generation unit, a spread spectrum unit, a command processing unit, and an arbitration unit.
  • the serial-to-parallel conversion unit may be used to convert the first serial signal into an image driving signal to be displayed by each display module and a control driving signal corresponding to each display module.
  • the forwarding unit can be used to process the image drive signal to be displayed by each display module and the control drive signal corresponding to each display module, so as to transmit the processed signal to the next-level display module connected in series with the display module through the conversion of the parallel-serial conversion unit.
  • the processing of the forwarding unit can include updating the sorting information, and then generating a new first serial signal forwarded to the next-level display module through the conversion of the parallel-serial conversion unit.
  • the protocol parsing unit can be used to parse the image drive signal and the control drive signal.
  • the parsing of the protocol parsing unit may include distinguishing the image drive signal and the control drive signal, so as to send the image drive signal to the image drive signal interception unit and send the control drive signal to the control drive signal generation unit.
  • the image driving signal intercepting unit may be used to intercept the image driving signal to be displayed by the display module itself from the image driving signal to be displayed by each display module.
  • the control driving signal generating unit may be used to generate a control driving signal corresponding to the display module itself according to the generation parameters.
  • the spread spectrum unit can be used to perform spread spectrum processing according to the image drive signal to be displayed by the display module itself and the control drive signal corresponding to the display module itself, so as to control the display module to display the image drive signal to be displayed according to its corresponding control drive signal.
  • Spread spectrum processing can improve the EMC (electromagnetic compatibility) effect, including but not limited to RGB mismatching, filtering and other processing.
  • the command processing unit can be used to process commands to obtain module information of the display module.
  • the command processed by the command processing unit can be a readback command sent by the host computer or the module control device, or a light board command sent by the light board.
  • the command processing unit can obtain the inspection information, the light board FLASH information and the module status information through the inspection unit, the SPI management unit and the ADC acquisition unit according to the readback command.
  • the arbitration unit can be used to process the module information and the signal received from the next level display module.
  • the specific processing includes but is not limited to packaging, transmitting the module information and the signal received from the next level display module according to a certain transmission order, etc.
  • the parallel-to-serial conversion unit may be used to convert the module information into a second serial signal.
  • control module may further include a conversion unit, which is connected to the serial-to-parallel conversion unit and/or the parallel-to-serial conversion unit and can be used to configure the circuit direction so that a signal (such as a return signal, a signal received from a next-level display module, a first serial signal, etc.) is input or output from an interface at a corresponding position.
  • a signal such as a return signal, a signal received from a next-level display module, a first serial signal, etc.
  • control module may also include a serial-to-parallel conversion unit, a parallel-to-serial conversion unit, a forwarding unit, a protocol parsing unit, an image drive signal interception unit, an image processing unit, a spread spectrum unit, a command processing unit, and an arbitration unit.
  • the serial-to-parallel conversion unit may be used to convert the first serial signal into an image frame signal to be displayed by each display module and a control driving signal corresponding to each display module.
  • the protocol parsing unit can be used to parse the image frame signal and the control drive signal.
  • the parsing of the protocol parsing unit may include distinguishing the image frame signal and the control drive signal to send the image frame signal to the image processing unit and send the control drive signal to the control drive signal generating unit.
  • the image processing unit may be used to intercept the image frame signal to be displayed by the display module itself from the image frame signal to be displayed by each display module, and generate the image drive sequence number to be displayed by itself according to the image frame signal.
  • the control driving signal generating unit may be used to generate a control driving signal corresponding to the display module itself according to the generation parameters.
  • the spread spectrum unit can be used to perform spread spectrum processing according to the image drive signal to be displayed by the display module itself and the control drive signal corresponding to the display module itself, so as to control the display module to display the image drive signal to be displayed according to its corresponding control drive signal.
  • Spread spectrum processing can improve the EMC (electromagnetic compatibility) effect, including but not limited to RGB mismatching, filtering and other processing.
  • the command processing unit can be used to process commands to obtain module information of the display module.
  • the command processed by the command processing unit can be a readback command sent by the host computer or the module control device, or a light board command sent by the light board.
  • the command processing unit can obtain the inspection information, the light board FLASH information and the module status information through the inspection unit, the SPI management unit and the ADC acquisition unit according to the readback command.
  • the arbitration unit can be used to process the module information and the signal received from the next level display module.
  • the specific processing includes but is not limited to packaging, transmitting the module information and the signal received from the next level display module according to a certain transmission order, etc.
  • the parallel-to-serial conversion unit may be used to convert the module information into a second serial signal.
  • control module may further include a conversion unit, which is connected to the serial-to-parallel conversion unit and/or the parallel-to-serial conversion unit and can be used to configure the circuit direction so that a signal (such as a return signal, a signal received from a next-level display module, a first serial signal, etc.) is input or output from an interface at a corresponding position.
  • a signal such as a return signal, a signal received from a next-level display module, a first serial signal, etc.
  • the above-mentioned parallel-to-serial conversion module may also include a cache unit, a clock control unit, a point detection unit, an SPI management unit, an ADC acquisition unit and other units that assist in realizing the functions of the parallel-to-serial conversion module.
  • the above-mentioned signal processing unit may include a processor and a memory, and a computer program may be stored in the memory.
  • the functions of the serial-to-parallel conversion unit, the parallel-to-serial conversion unit, the forwarding unit, the protocol parsing unit, the display drive signal interception unit, the spread spectrum unit, the command processing unit, and the arbitration unit as shown in Figure 23 can be realized.
  • the function of the above-mentioned control module is realized.
  • the functions of the serial-to-parallel conversion unit, the parallel-to-serial conversion unit, the forwarding unit, the protocol parsing unit, the image drive signal interception unit, the control drive signal generation unit, the spread spectrum unit, the command processing unit, and the arbitration unit as shown in Figure 24 can be realized.
  • the functions of the serial-to-parallel conversion unit, the parallel-to-serial conversion unit, the forwarding unit, the protocol parsing unit, the image processing unit, the control drive signal generation unit, the spread spectrum unit, the command processing unit, and the arbitration unit as shown in Figure 25 can be realized.
  • control module can also be referred to the description of the control module of the display module of the LED display screen and its control system 30 in the previous text, and this application will not elaborate on this.
  • the above-mentioned LED display screen and its control system 30, or the controller 33, module control device 31 and display unit 32 in the LED display screen and its control system 30, can also include more or fewer components, or combine certain components, or different components.
  • the controller 33 can also include input and output devices, network access devices, buses, etc.
  • the technicians in the relevant field can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional units and modules is used as an example for illustration.
  • the above-mentioned function allocation can be completed by different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above.
  • the functional units and modules in the embodiments can be integrated in a processing unit, or each unit can exist physically alone, or two or more units can be integrated in one unit.
  • the above-mentioned integrated unit can be implemented in the form of hardware or in the form of software functional units.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Control Of El Displays (AREA)

Abstract

一种LED显示控制方法、LED显示屏及控制***（30）和相应组件，其中，LED显示屏及控制***（30）包括模组控制设备（31）及与模组控制设备（31）连接的显示单元（32）；模组控制设备（31）用于生成待传输信号，通过并串转换模块将待传输信号转换为第一串行信号，并将第一串行信号传输至显示单元（32）中串联的多个显示模组；显示模组的控制模块用于从第一串行信号中解析得到每个显示模组待显示的图像驱动信号，以控制每个显示模组根据控制驱动信号控制自身待显示的图像驱动信号进行显示。可以简化LED显示屏及控制***（30）的布线，提高LED显示屏及控制***（30）的信号稳定性。

Description

LED显示控制方法、LED显示屏及其控制***和相应组件 技术领域
本申请涉及LED显示技术领域，具体涉及一种LED显示控制方法、LED显示屏及其控制***和相应组件，具体的，所述相应组件包括模组控制设备、并串转换模块、LED显示屏、显示模组以及控制模块。
背景技术
随着LED显示屏技术的发展，LED显示屏的应用场景越来越多。LED显示屏的控制过程中，用户通常需要通过LED显示屏的控制***对LED显示屏进行显示控制。相关技术中，LED显示屏及其控制***可以包括模组控制设备和显示屏，其中，模组控制设备可生成并分配待显示的图像驱动信号，通过并行的多个交互接口，以及排线等连接线，对LED显示屏的多个显示模组进行统一控制。实际应用中发现，这种连接方式中，模组控制设备所能带载的显示模组有限。LED显示屏的显示模组越多，则模组控制设备所需设置的用于连接模组的交互接口和显示模组的排线越多，导致布线越复杂，排线之间的信号干扰也易导致LED显示屏及其控制***的信号稳定性降低。
申请内容
本申请实施例的目的在于：提供一种LED显示控制方法、LED显示屏及其控制***和相应组件，具体的，所述相应组件包括模组控制设备、并串转换模块、LED显示屏、显示模组以及控制模块，可以解决目前LED显示屏及其控制***布线复杂、稳定性低的问题。
本申请实施例采用的技术方案是：
第一方面，提供了一种LED显示控制方法，包括：模组控制设备生成待传输信号，所述待传输信号包括显示单元中每个显示模组待显示的图像驱动信号，所述显示单元包括串联的多个所述显示模组；所述模组控制设备将所述待传输信号转换为第一串行信号，并将所述第一串行信号传输至所述显示单元中串联的多个所述显示模组；所述显示单元中每个所述显示模组的控制模块分别从所述第一串行信号中解析得到每个所述显示模组自身待显示的图像驱动信号，以控制每个所述显示模组分别根据控制驱动信号对自身待显示的图像驱动信号进行显示。
第二方面，提供了一种LED显示屏及其控制***，包括模组控制设备及与所述模组控制设备连接的显示单元，所述显示单元包括串联的多个显示模组，所述显示模组配置有控制模块；所述模组控制设备用于生成待传输信号，将所述待传输信号转换为第一串行信号，并将所述第一串行信号传输至所述显示单元中串联的多个所述显示模组，所述待传输信号包括显示单元中每个显示模组待显示的图像驱动信号；所述显示模组的控制模块用于从所述第一串行信号中解析得到每个所述显示模组待显示的图像驱动信号，以控制每个所述显示模组根据控制驱动信号对自身待显示的图像驱动信号进行显示。
第三方面，提供一种LED显示控制方法，包括：接收图像帧信号，并根据所述图像帧信号生成待传输信号，所述待传输信号包括显示单元中每个显示模组待显示的图像驱动信号，以及每个所述显示模组对应的控制驱动信号，所述显示单元包括串联的多个所述显示模组；将所述待传输信号转换为第一串行信号；将所述第一串行信号传输至所述显示单元中串联的多个所述显示模组。
第四方面，提供一种模组控制设备，所述模组控制设备用于控制显示单元，所述显示单元包括串联的多个显示模组，所述模组控制设备包括信号接收模块、并串转换模块、传输模块以及与所述显示单元连接的串行输出接口；所述信号生成模块用于接收图像帧信号，并根据所述图像帧信号生成待传输信号，所述待传输信号包括显示单元中每个所述显示模组待显示的图像驱动信号，以及每个所述显示模组对应的控制驱动信号；所述并串转换模块用于将所述待传输信号转换为第一串行信号；所述传输模块用于通过所述串行输出接口将所述第一串行信号传输至所述显示单元中串联的多个所述显示模组。
第五方面，提供一种并串转换模块，配置于模组控制设备中，所述模组控制设备和与显示单元连接，所述显示单元包括串联的多个显示模组；所述并串转换模块用于将所述模组控制设备生成的并行的待传输信号转换为第一串行信号，其中，所述待传输信号包括显示单元中每个所述显示模组待显示的图像驱动信号，以及每个所述显示模组对应的控制驱动信号，所述第一串行信号为所述模组控制设备传输至所述显示单元中串联的多个显示模组的信号。
第六方面，提供一种LED显示屏，所述LED显示屏包括一个或多个显示单元，至少部分所述显示单元包括串联的多个显示模组，每个所述显示模组配置有控制模块；所述显示模组的控制模块用于从模组控制设备发送的第一串行信号中解析得到同一显示单元内每个所述显示模组待显示的图像驱动信号以及同一显示单元内每个所述显示模组分别对应的控制驱动信号，并控制所述显示模组根据自身对应的控制驱动信号对自身待显示的图像驱动信号进行显示。
第七方面，提供一种LED显示模组，所述LED显示模组与其他显示模组串联形成显示单元，所述显示单元与模组控制设备连接，所述LED显示模组配置有控制模块；所述显示模组的控制模块用于从模组控制设备发送的第一串行信号中解析得到同一显示单元内每个所述显示模组待显示的图像驱动信号以及同一显示单元内每个所述显示模组分别对应的控制驱动信号，并控制所述显示模组根据自身对应的控制驱动信号对自身待显示的图像驱动信号进行显示。
第八方面，提供一种控制模块，配置于显示模组中，所述显示模组与其他显示模组串联形成显示单元，所述显示单元与模组控制设备连接；所述控制模块用于从模组控制设备发送的第一串行信号中解析得到同一显示单元内每个所述显示模组待显示的图像驱动信号，并根据控制驱动信号控制自身待显示的图像驱动信号的显示。
第九方面，提供一种计算机可读存储介质，所述计算机可读存储介质存储有计算机程序，所述计算机程序被处理器执行时实现上述控制模块或并串转换模块的功能。
第十方面，提供一种计算机程序产品，当计算机程序产品在模组控制设备上运行时，使得模组控制设备实现上述并串转换模块的功能；当计算机程序产品在显示模组上运行时，使得显示模组实现上述控制模块的功能。
本申请实施例提供的LED显示控制方法的有益效果在于：在本申请的实施方式中，LED显示屏及其控制***不需要将每个显示模组待显示的图像驱动信号单独发送给对应的显示模组，而是将并行的待显示的图像驱动信号转换为第一串行信号，并将第一串行信号发送至显示单元中串联的多个显示模组，第一串行信号在显示单元内串联的各个显示模组之间传递，使得各个显示模组接收到第一串行信号之后可以解析得到自身待显示的图像驱动信号，并根据控制驱动信号，对自身待显示的图像驱动信号进行显示。因此，串联的多个显示模组待显示的图像驱动信号可以通过模组控制设备的单个交互接口进行传输，LED显示屏及其控制***中用于传输图像驱动信号的交互接口数量减少，LED显示屏及其控制***中模组控制设备与显示模组之间连接线的数量也相应减少，LED显示屏及其控制***的布线更加简单。并且，交互接口的减少可以降低因接口异常而出现传输异常问题的概率，模组控制设备与显示模组之间连接线的减少可以降低连接线之间的信号干扰，因此，LED显示屏及其控制***的信号稳定性更高。
附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例或示范性技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它的附图。
图1是相关技术中LED显示屏及其控制***的结构示意图；
图2是相关技术中HUB类模组控制设备的结构示意图；
图3是本申请实施例提供的LED显示屏及其控制***的结构示意图；
图4是本申请实施例提供的LED显示屏的结构示意图；
图5是本申请实施例提供的采用转换芯片进行并串信号转换的LED显示屏及其控制***的结构示意图；
图6是本申请实施例提供的转换芯片的示意图一；
图7是本申请实施例提供的转换芯片的示意图二；
图8是本申请实施例提供的采用主控芯片进行并串信号转换的LED显示屏及其控制***的结构示意图二；
图9是本申请实施例提供的控制芯片的示意图；
图10是本申请实施例提供的应用于LED显示屏及其控制***的LED显示控制方法的具体流程示意图；
图11是本申请实施例提供的交互接口间备份的结构示意图；
图12是本申请实施例提供的模组控制设备间备份的结构示意图；
图13是本申请实施例提供的单个模组控制设备连接多个显示单元的结构示意图；
图14是本申请实施例提供的单个模组控制设备通过转换芯片及多个交互接口连接多个显示单元的结构示意图；
图15是本申请实施例提供的单个模组控制设备通过主控芯片和多个交互接口连接多个显示单元的结构示意图；
图16是本申请实施例提供的采用主控芯片的压缩算法及控制芯片的解压算法进行信号加解压的结构示意图；
图17是本申请实施例提供的采用压缩芯片和解压芯片进行信号加解压的结构示意图；
图18是本申请实施例提供的采用显示模组的解压芯片进行信号解压的结构示意图；
图19是本申请实施例提供的应用于模组控制设备的LED显示控制方法的具体流程示意图；
图20是本申请实施例提供的将GND信号引脚设置在两对TX信号引脚之间的示意图；
图21是本申请实施例提供的并串转换模块的结构示意图；
图22是本申请实施例提供的设置有容置装置的LED显示屏的结构示意图；
图23是本申请实施例提供的采用显示驱动信号截取单元的控制模组的结构示意图；
图24是本申请实施例提供的采用图像驱动信号截取单元及控制驱动信号生成单元的控制模组的结构示意图；
图25是本申请实施例提供的采用图像处理单元及控制驱动信号生成单元的控制模组的结构示意图。
具体实施方式
为了使本申请的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本申请进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本申请，并不用于限定本申请。基于本申请的实施例，本领域技术人员在没有做出创造性劳动的前提下所获得的所有其他实施例，都属于本申请保护。需说明的是，当部件被称为“固定于”或“设置于”另一个部件，它可以直接在另一个部件上或者间接在该另一个部件上。当一个部件被称为是“连接于”另一个部件，它可以是直接或者间接连接至该另一个部件上。术语“上”、“下”、“左”、“右”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制，对于本领域的普通技术人员而言，可以根据具体情况理解上述术语的具体含义。术语“第一”、“第二”仅用于便于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明技术特征的数量。“多个”的含义是两个或两个以上，除非另有明确具体的限定。
相关技术中，如图1所示，LED显示屏及其控制***可以包括控制器、模组控制设备和显示屏。其中，显示屏通常包括多个箱体，每个箱体由一个或多个显示模组封装而成。控制器的网络传输接口(或称为网口)可以与一个模组控制设备或级联的多个模组控制设备连接，以通过网口将图像帧信号发送至模组控制设备，模组控制设备接收到图像帧信号后，可根据图像帧信号生成图像驱动信号，以通过交互接口对箱体中的显示模组进行控制。
请一并参考图1和图2，无论是转接板(HUB)类的模组控制设备还是核心高密接插件类的模组控制设备，都会通过HUB板上的交互接口与显示模组连接。HUB板与显示模组间的连接方式通常为星型连接方式，即HUB板上的每个交互接口分别与一个显示模组连接。HUB板的交互接口大多数是HUB75接口或者HUB320接口，模组控制设备在生成图像驱动信号后，可通过HUB75接口或者HUB320接口分别将每个显示模组待显示的图像驱动信号发送给图像驱动信号所属的显示模组。16个交互接口并行传输的16个并行信号称为一个LED数据组。LED显示屏的面积越大，显示模组的数量越多，则模组控制设备所需设置的用于连接模组的交互接口和显示模组的排线越多，导致布线复杂，排线之间的信号干扰也易导致LED显示屏及其控制***的信号稳定性降低。
有鉴于此，本申请提出了一种LED显示屏及其控制***，可以在模组控制设备处，将原本需要并行传输的图像驱动信号转换为串行信号，并将多个显示模组串联为显示单元，使得串行信号在显示单元中串联的多个显示模组之间传递，进而单个交互接口通过单条连接线可以带载串联的多个显示模组。换句话说，多个显示模组待显示的图像驱动信号可以通过单个交互接口进行传输，同样数量的显示模组所需的交互接口的数量减少，模组控制设备与显示模组之间的连接线的数量也相应减少。因此，整个LED显示屏及其控制***的布线更加简单。
并且，交互接口的减少可以降低因接口异常而出现传输异常问题的概率，模组控制设备与显示模组之间连接线的减少可以降低连接线之间的信号干扰，因此，显示屏及其控制***的信号稳定性更高。
此外，由于LED显示屏及其控制***所需的交互接口数量减少，且传输至显示单元的信号为串行信号，模组控制设备不再需要通过HUB板上的交互接口来传输并行信号。通过在模组控制设备上，配置串行输出接口作为交互接口，可以带载与相关技术中，即通过HUB板的并行带载方案中，相同数量的显示模组。而相关技术中同一LED数据组包含的并行信号也将归一化为一个串行信号，即LED显示屏及其控制***支持带载一种固定显示模组数量的标准化显示屏，例如模组数量16个、24个等等。
为了便于说明本申请实施例提供的方案，首先，对本申请提到的一些术语进行解释说明如下：
请参考图3，图3示出的本申请实施例提供的LED显示屏及其控制***，LED显示屏及其控制***30可以包括LED显示屏、模组控制设备以及控制设备。控制设备可以包括控制器与上位机，一些实施方式中，控制器和上位机可以是同一个设备。
LED显示屏及其控制***：LED显示屏及其控制***是用于对LED显示屏进行控制，实现LED显示功能的***。具体而言，LED显示屏及其控制***可以通过控制设备、模组控制设备以及更多或更少的组件，对LED显示屏进行控制，使得LED显示屏显示特定的文字、图像、视频等画面。
控制器：控制器是用于向模组控制设备传输源信号的控制设备，可以指发送卡或者配置有发送卡的设备。控制器上可配置有一个或多个网口，可在获取到图像帧信号之后，通过网口将图像帧信号发送至所连接的模组控制设备。一些实施方式中，控制器可以从与控制器连接的视频源(或称为外源)获取图像帧信号，该视频源可以通过HDMI(High Definition Multimedia Interface)、DVI(Digital Visual Interface)、DP(DisplayPort)线等连接线将图像帧信号传输至控制器。另一些实施方式中，控制器也可以从控制器的内部存储器(或称为内源)获取图像帧信号。
模组控制设备：模组控制设备是用于对LED显示屏内的显示模组进行控制的设备，可以指扫描卡、接收卡或者配置有扫描卡或接收卡的设备，一些实施方式中，模组控制设备还可以特指一个芯片，例如可以是T-con芯片等。模组控制设备可将图像驱动信号发送至显示模组，以使显示模组显示对应的画面。模组控制设备可以通过交互接口与显示模组进行信息交互，该交互接口可以是网口、TYPE-C接口、SATA(Serial Advanced Technology Attachment)接口或其他接口。交互接口和显示模组之间可以基于指定连接线连接，该指定连接线可以是网线、TYPE-C线、SATA线材或其他连接线。
上位机：上位机是一种支持用户交互的控制设备，例如可以为手机、电脑、智能手表等。用户通过上位机可以对LED显示屏及其控制***内各个组件的一些重要参数进行配置，例如，可以配置LED显示屏的画面分辨率、所使用的控制驱动信号、所采用的显示模式等。需要说明的是，上述用户交互的功能可以通过上位机的软件实现，并且，当上位机与控制器为同一个设备时，用于实现上述功能的软件可以集成在控制器内。
LED显示屏：LED显示屏由若干个LED显示模组组成，可用于显示文字、图像、视频等各种信息。本申请的实施方式中，LED显示屏可以是普通的LED显示屏，也可以是microLED、miniLED以及未来的新类型的LED显示屏，对此本申请不进行限制。
LED显示模组(或简称为显示模组)：LED显示模组也称为灯板，每个LED显示模组可以包括LED灯珠(也称像素灯)、PCB板、驱动芯片(驱动IC)、译码芯片(译码IC)。驱动IC和译码IC可以根据控制驱动信号对图像驱动信号进行处理，控制灯板点亮显示或停止显示，进而实现显示的功能。通常的，LED显示屏上的每个像素可以包括一个或多个LED灯珠，例如可以包括红、绿、蓝三个LED灯珠、包括红、绿、绿、蓝四个LED灯珠，或者，包括更多或更少的LED灯珠。所谓的“控制灯板点亮显示或停止显示”，实质上是控制灯板上的LED灯珠点亮或熄灭，进而使每个像素呈现对应的显色。
显示单元：在LED显示屏内，若干个LED显示模组可以通过有线或无线的方式串联，串联的多个显示模组可称为一个显示单元。以图4所示的LED显示屏为例，图4中的每个虚线框可表示一个显示单元。单个显示单元可以与模组控制设备的单个交互接口连接，使得模组控制设备通过交互接口发送的信号能够在串联的多个显示模组之间传递输。示例性的，假设显示单元包括：与交互接口相连的第一级显示模组、与第一级显示模组相连的第二级显示模组、与第二级显示模组相连的第三级显示模组、……、与第N-1级显示模组相连的第N级显示模组，其中，N为大于或等于2的正整数。模组控制设备可以通过交互接口将信号传输至第一级显示模组，使得信号从第一级显示模组传递至第二级显示模组，再从第二级显示模组传递至第三级显示模组，以此类推，直至传递至第N级显示模组。
需要说明的是，本申请的实施例可以将各个显示模组独立封装，也可以将多个显示模组封装成箱体进行工作。每个箱体可以包含一个或多个显示单元，或者可以包含同一个显示单元内的部分显示模组，对此本申请不进行限制。
下面结合上述术语，通过具体实施例来进行说明本申请的技术方案。
图5示出了本申请实施例提供的LED显示屏及其控制***30的结构示意图。请参考图5，LED显示屏及其控制***30可以包括模组控制设备31和显示单元32。
本申请的实施方式中，模组控制设备31可用于生成待传输信号，将待传输信号转换为第一串行信号，并将第一串行信号传输至显示单元32中串联的多个显示模组。
其中，待传输信号是指需要传输至显示模组的信号，可以具体包括显示单元32中每个显示模组待显示的图像驱动信号。
在一些实施方式中，LED显示屏及其控制***30还可以包括控制器33。控制器33可在获取到每个显示模组待显示的图像帧信号之后，通过网络传输接口将每个显示模组待显示的图像帧信号发送至所连接的模组控制设备31。模组控制设备31通过获取控制器33发送的每个显示模组待显示的图像帧信号，可根据图像帧信号生成图像驱动信号，并将图像驱动信号作为待传输信号，转换为第一串行信号，以将第一串行信号传输至显示单元32中串联的多个显示模组。
其中，图像帧信号可以包括单帧图像的配置信息，例如黑屏参数、实际参数、起始位置信息等。模组控制设备31接收到图像帧信号之后，可以结合行信号进行信号处理，生成图像驱动信号。图像驱动信号可以指用于实现视频播放、图片播放的信号，可以包括R、G、B三种信号。具体而言，图像驱动信号可以包含多组信号，其中，每一组信号为通过模组控制设备31的一组图像驱动信号引脚发送的信号，一组图像驱动信号引脚可以包括R、G、B三种引脚。每个显示模组所需的图像驱动信号可以为其中一组或多组信号。图像驱动信号所包含的信号组数与模组控制设备31带载的显示模组的数量，以及模组控制设备31所包含的图像驱动信号引脚的组数有关。假设每个显示模组需要两组信号，模组控制设备31设置有32组图像驱动信号引脚，则模组控制设备31能够带载16个显示模组，如果模组控制设备31实际带载10个显示模组，则图像驱动信号的实际组数为20组。作为示例，在传输第一串行信号时，图像驱动信号可以包含64组信号、128组信号等。
相较于相关技术，为了避免因传输并行信号而造成的交互接口过多及排线数量过多的问题，模组控制设备31在进行信号传输之前，可以将待传输信号转换为第一串行信号。简而言之，模组控制设备31可以将多份并行信号(即，n个显示模组待显示的图像驱动信号)压缩为一份串行的高速信号。多份并 行信号速率较低，压缩为串行的高速信号后，传输速率更高，等效于单位时间内传输的一份信号可以包含原先单位时间内传输的n份并行信号的信息。
由于传输至显示单元32的信号为串行信号，模组控制设备31不再需要使用HUB板上用于传输并行信号的交互接口。通过在模组控制设备31上配置串行输出接口作为交互接口，模组控制设备31可以带载相关技术中需基于HUB板带载的多个显示模组。而相关技术中的“LED数据组”也可以归一化为一个第一串行信号，第一串行信号可以在显示单元32中串联的多个显示模块内逐级拓传，使得每个显示模块都能够接收到第一串行信号。
应理解，根据信号传输、信号解析的需要，各个显示模组的控制模块所接收到的第一串行信号可以相同或不同。例如，每一级显示模组的控制模块在接收到上一级显示模组发送的第一串行信号之后，可以直接转发至下一级显示模组的控制模块，此时，各个显示模组的控制模块所接收到的第一串行信号可以相同。又例如，每一级显示模组的控制模块在接收到上一级显示模组发送的第一串行信号之后，可以对第一串行信号做一定的处理，再转发给下一级显示模组的控制模块，此处的处理包括但不限于对第一串行信号中携带的信息进行更新、排序等，此时，各个显示模组的控制模块所接收到的第一串行信号可以存在一定区别。
显示单元32中的每个显示模组可以配置有控制模块，每个显示模组的控制模块分别可以从第一串行信号中解析得到显示模组自身待显示的图像驱动信号，以控制每个显示模组分别根据控制驱动信号对自身待显示的图像驱动信号进行显示。具体而言，每个显示模组的驱动IC和译码IC可以根据自身的控制驱动信号对自身的图像驱动信号进行处理，控制灯板点亮显示或停止显示，进而实现显示功能。其中，控制驱动信号是用于控制灯板上驱动IC和译码IC的信号，具体可以包括OE(Output Enable)/Gclk(全局时钟/灰度时钟)信号、Dclk(跟踪时钟/数据时钟)信号、Latch(LAT，锁存)信号、刷新率信号，以及扫描控制信号(或称为译码信号)。
一些实施方式中，图像驱动信号和控制驱动信号可以统称为LED显示驱动信号。
在本申请的实施方式中，LED显示屏及其控制***30不需要将每个显示模组待显示的图像驱动信号单独发送给对应的显示模组，而是将并行的待显示的图像驱动信号转换为第一串行信号，并将第一串行信号发送至显示单元32中串联的多个显示模组，第一串行信号在显示单元32内串联的各个显示模组之间传递，使得各个显示模组接收到第一串行信号之后可以解析得到自身待显示的图像驱动信号，并根据控制驱动信号，对自身待显示的图像驱动信号进行显示。因此，串联的多个显示模组待显示的图像驱动信号可以通过模组控制设备31的单个交互接口进行传输，LED显示屏及其控制***30中用于传输图像驱动信号的交互接口数量减少，LED显示屏及其控制***30中模组控制设备31与显示模组之间连接线的数量也相应减少，LED显示屏及其控制***30的布线更加简单。并且，交互接口的减少可以降低因接口异常而出现传输异常问题的概率，模组控制设备31与显示模组之间连接线的减少可以降低连接线之间的信号干扰，因此，LED显示屏及其控制***30的信号稳定性更高。
下面对LED显示屏及其控制***30内的信号处理过程进行详细说明。
在本申请的一些实施方式中，模组控制设备31可具体用于通过内部的并串转换模块将并行输入接口传输的待传输信号转换为串行输出接口输出的第一串行信号。示例性的，上述并行输入接口可以为传输单端数字信号的传输接口，该传输单端数字信号的传输接口可以为多路用于传输LVDS(Low-Voltage Differential Signaling)通信技术信号的接口，或者，可以为用于传输TTL(Transistor Transistor Logic)通信技术信号的接口。上述串行输出接口可以为高速传输接口，该高速传输接口可以为用于传输Serdes串行通信技术信号的接口。换言之，模组控制设备31可以将多路LVDS信号、TTL信号等低速信号转换为高速的Serdes信号。应理解，本申请不限于此，也有可能是其他的类型的信号。
具体的，请参考图5，在一些实施方式中，模组控制设备31的并串转换模块可以为主控芯片和转换芯片，主控芯片可生成待传输信号，并将待传输信号传输至转换芯片，由转换芯片将主控芯片生成的待传输信号转换为第一串行信号，并通过交互接口将第一串行信号传输至显示单元32。应理解，此时的交互接口即为串行输出接口。
图6和图7分别示出了转换芯片的两种示意图。
图6所示是TTL信号转换为SerDes信号的转换芯片的引脚框图。该转换芯片可以包括两侧引脚。其中，一侧引脚可以包括：一组或多组图像驱动信号引脚(R1至RX、G1至GX，以及B1至BX)、一个或多个扫描控制信号引脚(A至X)、一个或多个驱动控制信号引脚(Dclk、LAT、OE/Gclk等)、回传信号引脚(X)。另一侧引脚可以包括：一对或多对TX引脚、一对或多对RX引脚。其中，所说的“一对引脚”表示一个正极引脚和一个负极引脚，比如一对TX引脚可以包括一个TX+引脚和一个TX-引脚。一组图像驱动信号引脚可以包括一个图像驱动信号R引脚、一个图像驱动信号G引脚以及一个图像驱动信号B引脚。其他实施方式中，转换芯片还可以包括SPI接口引脚、串口引脚、时钟输入信号引脚、复位信号引脚、供电信号引脚等等。应理解，每一侧引脚可以作为输入侧的引脚和/或输出侧的引脚。一些实施方式中，两侧引脚分别对应输入侧的引脚和输出侧的引脚，根据信号传输方向的不同，同一侧引脚既可以作为输入侧的引脚，也可以作为输出侧的引脚。另一些实施方式中，同一侧引脚既是输入侧的引脚，也是输出侧的引脚，即从同一侧引脚输入后又从同一侧引脚输出。
图7所示是多路LVDS信号转换为SerDes信号的转换芯片的引脚框图。该转换芯片可以包括两侧引脚。其中，一侧引脚可以包括一对或多对LVDS TX引脚、一对LVDS TCLK引脚、回传信号引脚(X)。另一侧引脚可以包括一对或多对TX引脚。一些实施方式中，转换芯片的引脚还可以包括一对或多对LVDS RX引脚、一对LVDS RCLK引脚，和/或，一对或多对RX引脚。同样的，转换芯片还可以包括SPI接口引脚、串口引脚、时钟输入信号引脚、复位信号引脚、供电信号引脚等等。每一侧引脚可以作为输入侧的引脚和/或输出侧的引脚。一些实施方式中，两侧引脚分别对应输入侧的引脚和输出侧的引脚，根据信号传输方向的不同，同一侧引脚既可以作为输入侧的引脚，也可以作为输出侧的引脚。另一些实施方式中，同一侧引脚既是输入侧的引脚，也是输出侧的引脚，即从同一侧引脚输入后又从同一侧引脚输出。
由图6和7可知，一些实施方式中，串行输出接口的引脚数量可以少于并行输入接口的引脚数量，这种方式在传输同样的数据时，可以使信号引脚的使用数量以及交互接口的使用数量减少。换句话说，通过这种方式，可以选用交互接口更少的模组控制设备31，或者可以使用相同的模组控制设备31带载更多的显示模组。
在另一些实施方式中，如图8所示，如果主控芯片可以通过集成IP或内部电路将待传输信号转换为第一串行信号，例如当主控芯片(例如FPGA)能够直接输出高速的串行信号时，也可以省去转换芯片，由主控芯片实现上述转换功能。也即，主控芯片可以生成待传输信号，并将待传输信号转换为第一串行信号，以通过交互接口将第一串行信号传输至显示单元32中串联的多个显示模组。
为了适配第一串行信号，一些实施方式中，显示单元32中的各个显示模组可以配置有控制模块，显示模组的控制模块可用于将接收到的第一串行信号转换为第一并行信号，并从第一并行信号中截取子并行信号。其中，第一并行信号可以包括显示单元32内串联的多个显示模组待显示的图像驱动信号，子并行信号可以包括显示模组自身待显示的图像驱动信号。换言之，显示模组的控制模块可以从多个显示模组待显示的图像驱动信号中截取自身待显示的图像驱动信号。应理解，不同的显示模组将截取不同的子并行信号。
示例性的，显示模组的控制模块可以将串行输入接口传输的第一串行信号转换为并行输出接口传输的第一并行信号。其中，串行输入接口可以为高速传输接口，具体可以为用于传输Serdes串行通信技术信号的接口。并行输出接口可以为传输单端数字信号的传输接口，具体可以为用于传输TTL通信技术信号的接口，或者，具体可以为多路用于传输LVDS通信技术信号的接口。换言之，控制模块可以将高速的Serdes信号转换为TTL信号多路、LVDS信号等低速信号。应理解，本申请不限于此，也有可能是其他的类型的信号。
具体的，上述控制模块可以为控制芯片，图9示出了将SerDes信号转换为TTL信号等单端数字信号的控制芯片的引脚框图。该控制芯片可包括两侧引脚，其中，一侧引脚可以包括一对或多对RX引脚、一对或多对TX引脚。另一侧引脚可以包括一组或多组图像驱动信号引脚(R1至RX、G1至GX，以及B1至BX)、一个或多个扫描控制信号引脚(A至X)、一个或多个驱动控制信号引脚(Dclk、LAT、OE/Gclk等)、SPI接口引脚，以及信号采集接口引脚。同样的，控制芯片还可以包括串口引脚、时钟输入信号引脚、复位信号引脚、供电信号引脚等等。每一侧引脚可以作为输入侧的引脚和/或输出侧的引 脚。一些实施方式中，两侧引脚分别对应输入侧的引脚和输出侧的引脚，根据信号传输方向的不同，同一侧引脚既可以作为输入侧的引脚，也可以作为输出侧的引脚。另一些实施方式中，同一侧引脚既是输入侧的引脚，也是输出侧的引脚，即从同一侧引脚输入后又从同一侧引脚输出。
在本申请的实施方式中，控制模块从每个显示模组待显示的图像驱动信号中截取自身待显示的图像驱动信号的方式可以根据实际情况进行选择，对此本申请不作限制。
作为一种示例，第一串行信号可携带每个显示模组待显示的图像驱动信号及对应的数据标识，控制模块可以将数据标识和自身的参考标识进行匹配，截取与匹配成功的数据标识对应的图像驱动信号。
一些实施方式中，第一串行信号中每个显示模组待显示的图像驱动信号可以按照显示模组串联的顺序进行排序，并按照顺序赋予表征次序的数据标识。显示模组的控制模块将第一串行信号转换为第一并行信号之后，可以将数据标识和自身的标识进行匹配，从而选取对应次序的图像驱动信号。
其中，上述显示模组自身的标识的获取方式可以根据实际情况调整。一些实施方式中，该标识可以是显示模组的自身标识。另一些实施方式中，第一串行信号可以携带有排序信息。模组控制设备可以将第一串行信号传输至显示单元中的第一级显示模组；显示单元32中每个显示模组的控制模块分别对接收到的第一串行信号中携带的排序信息进行更新，并将更新排序信息后的第一串行信号转发至下一级显示模组。比如，模组控制设备31发送的第一串行信号携带的排序信息为0，第一级显示模组可以将排序信息更新为1，相应的，第一级显示模组可以将更新后的排序信息作为自身的标识，以截取“1”对应的图像驱动信号。同时，第一级显示模组可以将排序信息为1的第一串行信号转发至第二级显示模组。第二级显示模组可以将排序信息更新为2，相应的，第二级显示模组可以将更新后的排序信息作为自身的标识，以截取“2”对应的图像驱动信号。同时，第二级显示模组可以将排序信息为2的第一串行信号转发至第三级显示模组，以此类推。其他实施方式中，上述标识的获取还可以由显示单元32中的各个显示模组依次通过控制模块的引脚、电路等实体硬件结构实现向模组控制设备的报数，并将该报数序号作为自身标识，从而在第一串行信号中，截取并使用与自身标识信息对应部分的数据，对此本申请不进行限制。
另一些实施方式中，模组控制设备31可以按照配屏信息等配置表为每个显示模组待显示的图像驱动信号赋予显示模组对应的数据标识，显示模组的控制模块可以获取配置信息，从配置信息中查询自身与数据标识的对应关系，从而截取自身的图像驱动信号，仅举例说明，本申请不限于此。
其中，配置信息可以由用户在上位机上的软件进行配置。用户在上位机上的软件中对配置信息进行配置也称为配屏操作。具体而言，现场安装人员完成LED显示屏中显示模组的走线后，需要将各个显示模组的位置以及各个显示模组的尺寸(也即所控制的LED像素数量)等显示屏的配置信息告诉控制器33，以使控制器33能够分配图像帧数据给相应的模组控制设备31。因此，一些实施方式中，可以通过配屏操作使控制器33能够准确地将图像帧数据分配给对应的模组控制设备31，同时使得各个显示模组获得配置信息，得到自身与数据标识之间的对应关系，进而截取自身的图像驱动信号。
进一步地，在显示模组逐级转发第一串行信号的过程中，各级显示模组还可以将剔除了自身对应的图像驱动信号的第一串行信号转发至下一级显示模组。具体而言，显示模组的控制模块可以对第一串行信号转换为第一并行信号，并将自身的子并行信号以外的其他子并行信号转换回串行信号，转发给下一级模组。例如，第一级显示模组可以将第二级到第N级显示模组的子并行信号转换为新的串行信号，并转发至第二级显示模组，第二级显示模组可以将第三级到第N级显示模组的子并行信号转换为新的串行信号，并转发至第三级显示模组，以此类推。这种实施方式可以是显示模组与显示模组之间传递的串行信号的信息量减少，进一步提高传输稳定性。
作为另一示例，串联的多个显示模组待显示的图像驱动信号可以对应一张画面图像，相应的，每个控制模块可以根据在该画面图像中自身待显示的图像区域对应的坐标范围，从该画面图像中截取自身待显示的图像区域，得到自身待显示的图像驱动信号。
具体的，显示模组可以获取用户在上位机设置的灯板参数(例如芯片类型、分辨率、扫描方式、数据组数、数据方向等)，基于灯板参数确定自身待显示的图像区域对应的坐标范围。
为了适配第一串行信号，另一些实施方式中，显示模组的控制模块还可用于从第一串行信号中截取显示模组自身对应的子串行信号，并将子串行信号转换为子并行信号，子并行信号包括显示模组自身待 显示的图像驱动信号。换言之，显示模组的控制模块先解析第一串行信号中属于自己的部分(子串行信号)，再将属于自己的这部分串行信号转换为并行信号，从而得到自身待显示的图像驱动信号，图像驱动信号。
作为一种示例，第一串行信号可携带每个子串行信号及对应的数据标识，控制模块可以将数据标识和自身的参考标识进行匹配，选取与匹配成功的数据标识对应的子串行信号。
作为另一示例，每个子串行信号的数据长度可以相同，控制模块可以根据数据长度以及显示模块所属的级别，选取对应数据字节的子串行信号。例如，假设数据长度为a，当显示模块为第N级显示模组时，子串行信号可以是第一串行信号中，数据字节从(N-1)×a+1到N×a的部分。具体的，假设每个显示模组的子串行信号的数据长度都是8个字节，那么第1个显示模组可以在第一串行信号中截取第1到第8个字节的部分，得到自身的子串行信号，第二个显示模组可以在第一串行信号中截取第9到第16个字节的部分，得到自身的子串行信号，以此类推。
另一些实施方式中，显示模组还可以将接收到的第一串行信号中显示模组自身对应的子串行信号以外的信号传输至下一级显示模组。也就是说，每一级显示模组在向下一级显示模组传递串行信号时，可以将自身的子串行信号从向下一级显示模组传递的串行信号中剔除。例如，第一级显示模组可以将第二级到第N级显示模组的子串行信号发送至第二级显示模组，第二级显示模组可以将第三级到第N级显示模组的子串行信号发送至第四级模组，以此类推。这种实施方式可以是显示模组与显示模组之间传递的串行信号的信息量减少，进一步提高传输稳定性。
结合上述说明，图10示出了本申请提供的一种LED显示控制方法，可应用于上述LED显示屏及其控制***30。
步骤S1001，模组控制设备生成待传输信号。待传输信号可以包括显示单元中每个显示模组待显示的图像驱动信号，显示单元可以包括串联的多个显示模组。
步骤S1002，模组控制设备将待传输信号转换为第一串行信号，并将第一串行信号传输至显示单元中串联的多个显示模组。
步骤S1003，显示单元中每个显示模组的控制模块分别从第一串行信号中解析得到每个显示模组自身待显示的图像驱动信号，以控制每个显示模组分别根据控制驱动信号对自身待显示的图像驱动信号进行显示。
在本申请的实施方式中，LED显示屏及其控制***30不需要将每个显示模组待显示的图像驱动信号单独发送给对应的显示模组，而是将并行的待显示的图像驱动信号转换为第一串行信号，并将第一串行信号发送至显示单元32中串联的多个显示模组，第一串行信号在显示单元32内串联的各个显示模组之间传递，使得各个显示模组接收到第一串行信号之后可以解析得到自身待显示的图像驱动信号，并根据控制驱动信号，对自身待显示的图像驱动信号进行显示。因此，串联的多个显示模组待显示的图像驱动信号可以通过模组控制设备31的单个交互接口进行传输，LED显示屏及其控制***30中用于传输图像驱动信号的交互接口数量减少，例如前述16个HUB75接口分别连接16个显示模组可以转换为1个交互接口连接16个串联的显示模组，LED显示屏及其控制***30中模组控制设备31与显示模组之间连接线的数量也相应减少，LED显示屏及其控制***30的布线更加简单。
并且，交互接口的减少可以降低因接口异常而出现传输异常问题的概率，模组控制设备31与显示模组之间连接线的减少可以降低连接线之间的信号干扰，因此，LED显示屏及其控制***30的信号稳定性更高。
此外，由于LED显示屏及其控制***30所需的交互接口数量减少，且传输至显示单元32的信号为串行信号，模组控制设备31不再需要通过HUB板上的交互接口，来传输并行信号。通过在模组控制设备31上，配置串行输出接口作为交互接口，可以带载与相关技术中，即通过HUB板的并行带载方案中，相同数量的显示模组。而相关技术中同一LED数据组包含的并行信号也将归一化为一个串行信号，即LED显示屏及其控制***30支持带载一种固定显示模组数量的标准化显示屏，例如模组数量16个、24个等等。
在另外一些实施方式中，模组控制设备31还可以接收图像帧信号，生成多路并行信号，每一路并行信号包括单个模组控制设备31所连接的显示单元32中各个显示模组的图像帧信号。模组控制设备31 将每一路并行信号传输给对应的显示单元32。显示单元32中的各个显示模组的控制模块可以从并行信号中获取自身的图像帧信号，并根据图像帧信号生成自身的图像驱动信号。示例性的，模组控制设备31可以接收多路LVDS信号(图像帧信号)，将其转换为TTL信号(多路并行信号)，并将每一路并行信号发送至对应的显示单元32。
为了进一步提高LED显示屏及其控制***30的信号稳定性和性价比，本申请在图5或图8所示的LED显示屏及其控制***30，及图10所示的LED显示控制方法的基础上，还提供了多种不同的显示功能，下面以具体的实施例进行说明。
实施例一：
在本申请的一些实施方式中，上述显示模组的控制模块还可以获取自身的模组信息，将模组信号以第二串行信号的形式传输至模组控制设备31。具体而言，第二串行信号可以在显示单元32中串联的多个显示模组之间传递，最终传输至与显示单元32连接的模组控制设备31。
其中，模组信号是指由显示模组产生的信息。
具体的，前述控制模块还可以预留有SPI接口、串行接口Uart、外接天线接口TX等接口，预留的这些接口可与灯板Flash、MCU(Microcontroller Unit)和/或CPLD(Complex Programmable Logic Device)连接，用于将灯板Flash、点检等模组信息从灯板读取上来，由显示模组发送至所连接的模组控制设备31。与显示单元32连接的模组控制设备31可以接收第二串行信号，对第二串行信号进行解析，得到显示模组的模组信号，用于用户查看模组状态等。预留的这些接口既可以是串行传输接口，也可以是并行传输接口，也就是说，控制模块获取到的模组信息既可以是串行信号也可以是并行信号。如果模组信息为串行信号，则控制模块可以直接将该串行信号作为第二串行信号传输至模组控制设备31。如果模组信息为并行信号，控制模块还可以将该并行信号转换为第二串行信号，再将第二串行信号传输至模组控制设备31。
在一些实施方式中，模组信息可以为灯板Flash信息，灯板FLash信息可包括显示模组内的LED灯珠的校正信息，模组控制设备31可基于校正信息对显示屏进行校正。其中，校正信息包括但不限于显示模组当前使用的校正参数，该校正参数可以是冷屏校正系数、热力补偿系数等。其中，冷屏校正系数可用于在显示模组处于冷屏状态下将显示数据校正至目标数据，热力补偿系数可用于对显示模组进行冷屏数据和热屏数据的转换。基于上述校正信息，模组控制设备31可以对显示模组进行冷屏校正、热力校正、灰阶校正等不同方式的校正，使得LED显示屏中各个显示模组的显示效果更加均匀。在本申请的一些实施方式中，灯板Flash信息可以为显示模组通过SPI接口获取到的串行传输信号，显示模组可以直接对Flash信息进行传输，其中，SPI接口可以包括SSEL、SCLK、MISO、MOSI等引脚的信号。
另一些实施方式中，模组信号可以携带有显示模组的模组状态信息，具体的，模组状态信息可以包括显示模组的状态信息、显示模组的电路信息、电压信息、温度信息等。
另一些实施方式中，模组信号还可以携带有显示模组内LED灯点的点检信息，具体而言，点检信息可以包括LED灯珠能否正常工作的检测结果。显示模组的驱动IC可以对LED灯珠的状态进行检测，生成检测结果。模组控制设备31可以将模组信息回传至控制器33或上位机，以使控制器33或上位机可以根据点检信息进行LED灯珠的坏点评测。
另一些实施方式中，模组信号还可以携带有显示模组自身的信息，例如模组序列号(serial number，S/N)、批次号、材料名称等信息。
在本申请的一些实施方式中，模组状态信息和点检信息可以为显示模组从驱动IC获取到的并行信号，显示模组可以将其转换为第二串行信号后，再通过Uart接口或TX接口对模组状态信息和点检信息进行传输。
对于模组控制模块31而言，模组控制模块31还可以判断所接收到的第二串行信号中携带的模组信息的类型。若模组信息为模组控制模块31自身使用的信息，例如模组信息为前述灯板Flash信息，则模组控制模块31可直接使用第二串行信号。若模组信息为模组控制模块31待传输的信息，例如模组信息为前述点检信息或模组状态信息，则模组控制模块31还可以将第二串行信号转换为携带有模组信息的第二并行信号，并通过网口将第二并行信号传输至控制器33或上位机，供用户在软件等中查看。
在本申请的一些实施方式中，模组控制设备31将第二串行信号转换为第二并行信号的过程可以由前述并串转换模块(例如主控芯片或转换芯片)实现。示例性的，显示模组的控制模块将TTL信号转换为SerDes信号，并将SerDes信号传输至模组控制设备31后，模组控制设备31的转换芯片可以将SerDes信号转换为TTL信号，以将TTL信号传输至控制器33。
通过上述方式，模组控制设备31可以从显示模组回读各类模组信息，并基于各类模组信息实现评测、校正、参数调整等功能。
实施例二：
结合前述第一串行信号和第二串行信号的说明可知，信号在串联的多个显示模组之间可以双向传递。为了提高LED显示屏及其控制***30的信号可靠性，本申请的实施方式中，显示单元32可以基于双向传递的功能，接收两路相同的信号，实现信号的备份。
具体的，第一串行信号可以包括主串行信号和备份串行信号，主串行信号和备份串行信号为发送至同一显示单元32的传输方向不同的信号。显示模组的控制模块可以分别从主串行信号和备份串行信号中解析得到主图像驱动信号和备份图像驱动信号。
在主串行信号正常工作时，控制模块可以控制每个显示模组根据控制驱动信号对主图像驱动信号进行显示。在主串行信号存在异常时，控制模块可以控制每个显示模组根据控制驱动信号对备份图像驱动信号进行显示。
其中，“存在异常”可以指信号质量低于质量阈值，或者未接收到主串行信号。显示模块可以基于所接收到的数据包的包头、数据包的丢包率等判断主串行信号是否存在异常。相应的，“正常工作”可以指信号质量高于或等于质量阈值。
在一些实施方式中，主串行信号可以连接至显示单元32的头部(第一级显示模组)，备份串行信号可以连接至显示单元32的尾部(最后一级显示模组)。另一些实施方式中，主串行信号可以连接至显示单元32的尾部，备份串行信号可以连接至显示单元32的头部。对此本申请不进行限制。
具体的，上述信号的备份可以具体包括交互接口间备份、模组控制设备间备份、控制器间备份三种方式：
请参考图11，交互接口间备份的方式如下：模组控制设备31可以包括主串行输出接口和备份主串行输出接口，主串行输出接口与备份串行输出接口为同一模组控制设备31的不同交互接口，与同一显示单元32连接。模组控制设备31可以通过主串行输出接口将主串行信号传输至显示单元32，并通过备份串行输出接口将备份串行信号传输至显示单元32。显示单元32可以同时接收到主串行输出接口传输的主串行信号和备份串行输出接口传输的备份串行信号，分别解析得到主图像驱动信号和备份图像驱动信号。在主串行信号正常工作时，每个显示模组可以根据控制驱动信号对主图像驱动信号进行显示。在主串行信号存在异常时，每个显示模组根据控制驱动信号对备份图像驱动信号进行显示。
请参考图12，模组控制设备间备份的方式如下：显示单元32可以同时与主模组控制设备和备份模组控制设备连接，主模组控制设备与备份模组控制设备为不同的模组控制设备。LED显示屏及其控制***30可以通过主模组控制设备将主串行信号传输至显示单元32，并通过备份模组控制设备将备份串行信号传输至显示单元32。显示单元32可以同时接收到主模组控制设备发送的主串行信号和备份模组控制设备发送的备份串行信号，分别解析得到主图像驱动信号和备份图像驱动信号。在主串行信号正常工作时，每个显示模组可以根据控制驱动信号对主图像驱动信号进行显示。在主串行信号存在异常时，每个显示模组根据控制驱动信号对备份图像驱动信号进行显示。
图12所示的主模组控制设备和备份模组控制设备与同一控制器33相连。在另一些实施方式中，主模组控制设备和备份模组控制设备还可以分别连接主控制器和备份控制器，主控制器和备份控制器为不同的控制器，进而实现控制器间备份。在主控制器正常工作时，显示模组可以根据控制驱动信号对根据主控制器发送的图像帧信号生成的主图像驱动信号进行显示。在主控制器异常时，显示模组可以根据控制驱动信号对根据备份控制器发送的图像帧信号生成的备份图像驱动信号进行显示。
应理解，上述备份模组控制设备、备份串行输出接口或备份控制器的数量可以为多个。通过上述交互接口间备份的方式、模组控制设备间备份以及控制器间备份的方式，显示单元32中每个显示模块均 可以接收到至少两路相同的第一串行信号，在某一路第一串行信号存在异常时，可以使用其他路的第一串行信号实现显示功能，提高了LED显示屏及其控制***30的信号传输可靠性。
实施例三：
在本实施例中，显示模组的驱动IC和译码IC可根据控制驱动信号对自身待显示的图像驱动信号进行显示。控制驱动信号的获取方式可以根据实际情况进行选择。
在一些实施方式中，模组控制设备31可以获取每个显示模组分别对应的控制驱动信号，并将控制驱动信号和图像驱动信号共同作为待传输信号，经转换为第一串行信号后传输至显示单元32的各个显示模块。显示模组的主控芯片可以对第一串行信号进行串并转换，并解析得到自身待显示的图像驱动信号和自身对应的控制驱动信号，以使显示模组可以根据自身对应的控制驱动信号，对自身待显示的图像驱动信号进行显示。其中，控制驱动信号可由模组控制设备31从控制器33或上位机获取，不同显示模组对应的控制驱动信号可以是相同的，也可以是不同的。由于显示模组的控制模块不需要进行控制驱动信号的生成，这种实施方式中显示模组可以选用处理能力相对较低的芯片，能够降低显示模组的成本。
在另一些实施方式中，模组控制设备31可以获取用于生成每个显示模组分别对应的控制驱动信号的生成参数，并将生成参数发送至显示单元32中串联的多个显示模组。其中，生成参数同样可以从控制器33或上位机获取。生成参数的发送方式可以根据实际情况进行选择，例如，可以与图像驱动信号共同作为第一串行信号，通过交互接口(串行输出接口)发送至显示单元32中串联的多个显示模组。显示模组的主控模块可以对第一串行信号进行串并转换，解析得到自身待显示的图像驱动信号和显示模组自身对应的生成参数，并根据显示模组自身对应的生成参数生成自身对应的控制驱动信号，以使显示模组可以根据自身对应的控制驱动信号，对自身待显示的图像驱动信号进行显示。
其中，生成参数具体可以包括分别用于生成OE/Gclk信号、Dclk信号、LAT信号、刷新率信号，以及扫描控制信号(或称为译码信号)的参数。具体的，模组控制设备31可以从上位机获取生成参数，用户可以在上位机的软件中对生成参数进行配置，每个显示模组可以根据用户配置的同一生成参数，生成相同的控制驱动信号。
示例性的，模组控制设备31可以从上位机获取用户设置的Dclk的频率、相位、占空比等参数，将这些参数作为生成Dclk信号的生成参数。模组控制设备31可以从上位机获取用户设置的OE极性、Gclk频率和分配系数，将这些参数作为生成OE/Gclk信号的生成参数。模组控制设备31可以从上位机获取用户设置的行消隐时间、换行时刻、余辉控制结束时间、消影模式、消影电位、灰度级数、刷新倍率和解码方式，将这些参数作为生成译码信号的生成参数。
在这种实施方式中，模组控制设备31可以仅在首次获取到生成参数，或者，生成参数发生变化时，将生成参数发送至显示单元32，而不需要像图像驱动信号一样实时发送，因此，这种实施方式有助于减少实时传输的数据量，降低LED显示屏及其控制***30所需的实时传输速率，使得LED显示屏及其控制***30的传输稳定性进一步得到提高。
请参考图13，由于实时传输的信息量减少，单个模组控制设备31可以带载n个显示单元32，其中，n为大于或等于1的正整数，换句话说，同样带载能力的模组控制设备31可以通过多个交互接口带载不同的显示单元32。
实施例四：
在本申请的一些实施方式中，由于每个模组控制设备31经信号串行化之后，相较于相关技术中的并行信号不再受管脚数的约束，模组控制设备31可以通过提升主控芯片和/或转换芯片的处理能力，或通过增加主控芯片的数量，将模组控制设备31带载的像素点总量提升至预设的数量阈值。其中，数量阈值可以根据实际情况进行调整，例如可以提升至512x1024，甚至更大。
此时，单个模组控制设备31上交互接口的数量可以多个，例如可以为4个、8个等。模组控制设备31中每个交互接口可以分别与不同的显示单元32连接，实现单个模组控制设备31同时带载多个显示单元32。图14示出了单个模组控制设备31通过主控芯片、转换芯片及多个交互接口同时带载多个显示单元32的示意图。图15示出了单个模组控制设备31通过主控芯片及多个交互接口同时带载多个显示单元32的示意图。
具体而言，上述模组控制设备31可以包括多路并行的串行输出接口，每路串行输出接口分别连接不同的显示单元32，每一路串行输出接口可用于将所连接的显示单元32的第一串行信号传输至所连接的显示单元32中的显示模组。进而，当显示单元32的数量为多个时，单个模组控制设备31可以通过多路并行的串行输出接口分别带载不同的显示单元32。
通过这种方式，整个LED显示屏及其控制***30使用的模组控制设备31的总数量可以减少，相应的，控制器33与模组控制设备31之间的网线数量减少，***稳定性得到提高。经实验测试，相关技术中点亮1080P的显示屏需要16个模组控制设备，而本申请实施例所提供的方式点亮1080P的显示屏，可通过控制器33的4个网络传输接口进行带载，每个网络传输接口分别带载480x1080个像素点，每个网络传输接口下使用1个4口的模组控制设备。也就是说，点亮1080P的显示屏可以缩减为4个模组控制设备。
另一些实施方式中，LED显示屏及其控制***30可以通过多个模组控制设备31分别带载不同的显示单元32。该多个模组控制设备31可以相互独立，也可以级联形成图5所示的模组控制设备组共同工作。
其中，多个模组控制设备31可以包括一种或多种类型的模组控制设备，每种类型的模组控制设备包含的交互接口的数量不同。示例性的，模组控制设备31可以为单口模组控制设备、双口模组控制设备、4口模组控制设备等。模组控制设备组内包含的模组控制设备31可以是其中的任意一种类型或任意多种类型的模组控制设备。换言之，模组控制设备组中的级联的模组控制设备可以具有不同的带载规格。
以网络传输接口为千兆网口为例，一般来说千兆网口理论可以带载约69万个像素点。假设单个4口模组控制设备的能够带载512x1024的显示区域，一个交互接口带载的像素点总量约为13万个。则需要6个交互接口。此时可以选择两个单口模组控制设备和一个4口模组控制设备进行级联，形成模组控制设备组。或者，可以选择三个双口模组控制设备进行级联，形成模组控制设备组。
实施例五：
在本实施例中，模组控制设备31所获取到的图像帧信号可以为经过压缩的信号。
具体的，在一些实施方式中，控制器33可用于获取每个显示模组待显示的图像帧信号，对每个显示模组待显示的图像帧信号进行压缩，得到压缩后的信号，并将压缩后的信号通过网络传输接口发送至所连接的模组控制设备31。
示例性的，上述对压缩的过程可以由控制器33内的压缩芯片或主控芯片实现。图像帧信号的压缩方式可以根据实际情况进行选择，压缩的目的是使得显示模组待显示的图像帧信号的数据量降低。
作为示例，图16示出了采用主控芯片实现压缩的控制器的示意图，主控芯片可以采用内部的压缩模块对每个显示模组待显示的图像帧信号进行压缩。具体而言，主控芯片可以通过压缩模块内部的电路进行压缩处理，也可以通过压缩模块内部存储的计算机程序，调用对应的压缩算法(压缩IP)进行压缩处理。
作为另一示例，图17示出了采用压缩芯片实现压缩的控制器的示意图，控制器33可将每个显示模组待显示的图像帧信号输入压缩芯片，压缩芯片可以对每个显示模组待显示的图像帧信号进行压缩，得到码流，并将码流存储至主控芯片的缓存，以通过网络传输接口传输至模组控制设备31。
相应的，LED显示屏及其控制***30在模组控制设备31或显示模组需通过解压来实现显示功能。
具体的，一些实施方式中，模组控制设备31可用于对压缩后的信号进行解压，得到每个显示模组待显示的图像帧信号，并分别根据每个显示模组待显示的图像帧信号生成对应显示模组的图像驱动信号，进而将每个显示模组待显示的图像驱动信号作为待传输信号，以将待传输信号转换为第一串行信号后，通过交互接口发送至显示单元32。
另一些实施方式中，模组控制设备31可用于将压缩后的信号作为待传输信号，此时，待传输信号可包括每个显示模组的待解压的图像帧信号。模组控制设备31可将待传输信号转换为第一串行信号，并将第一串行信号发送至显示单元32。显示单元32中每个显示模组的控制模块可以从第一串行信号中解析得到每个显示模组的待解压的图像帧信号，并对待解压的图像帧信号进行解压，得到每个显示模组待显示的图像帧信号，进而根据每个显示模组待显示的图像帧信号生成对应的图像驱动信号。
示例性的，上述解压过程可以由模组控制设备31内的解压芯片、主控芯片，或者显示模组的解压芯片实现。解压的方式同样可以根据实际情况进行选择，解压的目的是使得经过压缩的信号复原，得到显示模组实际使用的图像驱动信号。
作为示例，如图16所示，模组控制设备31的主控芯片可以采用内部的解压模块对压缩后的信号进行解压。具体而言，模组控制设备31的主控芯片可以通过解压模块内部的电路进行解压处理，也可以通过解压模块内部存储的计算机程序，调用对应的解压算法(解压IP)进行解压处理。
作为另一示例，如图17所示，模组控制设备31的主控芯片可将码流(压缩后的信号)传输给解压芯片，解压芯片完成解压后，可输出视频流至主控芯片的缓存。
作为另一示例，如图18所示，显示模组中可以配置有解压芯片，解压芯片可以码流(待解压的图像帧信号)进行解压并存储至缓存中，这样的设计可以使交互接口的数据传输量下降，从而提升模组控制设备31的带载能力。
需要说明的是，在LED显示屏及其控制***30内，控制器33在向模组控制设备31传输图像帧信号时，可以将每个模组控制设备31带载的每个显示模组的图像帧信号分别发送至对应的模组控制设备31。相应的，控制器33在对图像帧信号进行压缩时，可以对传输至不同模组控制设备31的图像帧信号分别进行压缩，并将压缩后的信号通过网络传输接口分别传输至对应的模组控制设备31。发送至不同模组控制设备31的图像帧信号可以采用相同或不同的压缩方式进行压缩，对此本申请不做限制。
在本申请的实施方式中，控制器33可以对图像帧信号进行压缩，使得网口传输的数据量降低，进而使得同一个网口可以带载更多的显示模组。所以，同样的LED显示屏所需要的网口的数量及网线的数量更少，整个LED显示屏及其控制***30布线更加简单，稳定性更高，一定程度上降低硬件成本。
当解压过程由显示模块实现时，交互接口传输的信号也是经过压缩的信号，数据传输量降低，使得同一个交互接口可以带载更多的显示模组。所以，同样的LED显示屏所需要的交互接口的数量及连接线的数量更少，整个LED显示屏及其控制***30更加简单，稳定性更高，进一步地降低了硬件成本。
示例性的，常规的1080P显示屏，控制器33需要多个1G网络传输接口，而通过本申请提供的压缩方式，可以使用1个1G网络传输接口完成带载，该1G网络传输接口可以与4个级联的、能够带载512x1024个像素点的模组控制设备31连接。
并且，通过这种压缩方式，单个模组控制设备31可以带载更多的串联模组，对于同样面积的LED显示屏而言，所需要的模组控制设备31的数量更少，降低了由显示控制模组设备数量过多带来的高成本问题，提高了LED显示屏及其控制***30的性价比。
实施例六：
在本实施例中，控制器33的网络传输接口的最大网络传输速率可以大于预设的速率阈值。其中，速率阈值可以根据实际需求调整。示例性的，上述网络传输接口可以为1G网络传输接口、2G网络传输接口、5G网络传输接口等。网络传输接口的最大网络传输速率越高，网络传输接口所能带载的像素点总数量越多，同样的LED显示屏可以使用更少的网络传输接口实现带载，那么整个LED显示屏及其控制***30的连接方式将更加简单，可以进一步提升LED显示屏及其控制***30的稳定性。
由于网络传输接口的带载能力提高，与网络传输接口连接的模组控制设备31也可以适应性地提高带载能力。例如，模组控制设备31的主控芯片可为高计算能力的FPGA(Field Programmable Gate Array)，或者，模组控制设备31可采用多个主控芯片FPGA，又或者，主控芯片可采用ARM(Advanced RISC Machines)芯片或者其他专用芯片等，又或者，将主控芯片与其他模块功能集成在一起。
实施例七：
在一些实施方式中，上述LED显示屏及其控制***30还可以包括以下功能的一种或多种：
1.上述主控芯片、转换芯片、显示模组的控制模块中的一个或多个可以携带有信号增强功能，进而可以省去相关技术的LED显示屏及其控制***30中74HC245等用于增强信号的芯片。
2.上述转换芯片和/或显示模组的控制模块可以进行误码检测，误码检测可用于检测转换芯片和/或显示模组的控制模块是否存在异常。
3.上述LED显示屏及其控制***30还可以包括电源，模组控制设备31获取单元输出的供电信号，并将供电信号传输至显示单元32中串联的多个显示模组，实现显示模组的供电，供电信号在显 示单元32中串联的显示模组之间传递，进而可以减少显示模组所需的供电线数量。一些实施方式中，供电信号可以作为第一串行信号的一部分，通过传输第一串行信号的连接线进行传输。也就是说，显示模组可以通过第一串行信号中携带的供电信号实现供电。例如，通过有源以太网(Power Over Ethernet，POE)的形式实现。
4.上述主控芯片、转换芯片、显示模组的控制模块中的一个或多个可以配置有用于定位自身所在位置的指示灯。
5.上述显示单元32中的每个显示模组可通过无线连接方式串联，显示单元32中各个显示模组的控制模块可以将接收到的第一串行信号传输至与显示模组自身无线通讯的下一级显示模组。
应理解的是，LED显示屏及其控制***30在实现显示功能时，可以支持上述实施例一至七的任意组合。例如，LED显示屏及其控制***30在支持交互接口间备份的方式的同时，可以进行信号的压缩与解压。又例如，LED显示屏及其控制***30在支持模组控制设备间备份的方式的同时，可以采用5G网络传输接口，并将多个模组控制设备31级联。实施例一至七的任意一种组合均属于本申请的保护范围。
结合前述说明，在本申请的实施方式提供了一种LED显示屏及其控制***30，可以包括模组控制设备31及与模组控制设备31连接的显示单元32，显示单元32可以包括串联的多个显示模组，且每个显示模组配置有控制模块。
其中，模组控制设备31可用于生成待传输信号，将待传输信号转换为第一串行信号，并将第一串行信号传输至显示单元32中串联的多个显示模组。待传输信号可以包括显示单元32中每个显示模组待显示的图像驱动信号。显示模组的控制模块可用于从第一串行信号中解析得到每个显示模组待显示的图像驱动信号，以控制每个显示模组根据控制驱动信号对自身待显示的图像驱动信号进行显示。
在一些实施方式中，上述LED显示屏及其控制***30还可以包括与模组控制设备31连接的电源，上述模组控制设备31还可以用于获取电源输出的供电信号，并将供电信号传输至显示单元32中串联的多个显示模组。
在一些实施方式中，上述模组控制设备31配置有主控芯片和转换芯片；模组控制设备31的主控芯片可用于生成待传输信号；模组控制设备31的转换芯片可用于将模组控制设备31的主控芯片生成的待传输信号转换为第一串行信号。
在一些实施方式中，上述模组控制设备31配置有主控芯片；模组控制设备31的主控芯片可用于生成待传输信号，并将待传输信号转换为第一串行信号。
在一些实施方式中，上述LED显示屏及其控制***30还包括与模组控制设备31连接的控制器33；控制器33可用于获取每个显示模组待显示的图像帧信号，将每个显示模组待显示的图像帧信号传输至模组控制设备31。模组控制设备31可用于获取控制器33发送的每个显示模组待显示的图像帧信号，并根据图像帧信号生成待传输信号。
上述LED显示屏及其控制***30的具体功能和结构还可以参考图3至图18的说明，对此本申请不做赘述。
如图19所示，在本申请的实施方式中，还提供一种LED显示控制方法，可应用于模组控制设备31，包括步骤S1901至步骤S1903。
步骤S1901，接收图像帧信号，并根据图像帧信号生成待传输信号。待传输信号可以包括显示单元中每个显示模组待显示的图像驱动信号，以及每个显示模组对应的控制驱动信号，显示单元可以包括串联的多个显示模组。
步骤S1902，将待传输信号转换为第一串行信号。
步骤S1903，将第一串行信号传输至显示单元中串联的多个显示模组。
其中，上述LED显示控制方法的具体实现过程可以参考前述LED显示屏及其控制***30中对模组控制设备31的描述。
相应的，在本申请的实施方式中，还提供一种模组控制设备31，该模组控制设备31与显示单元32连接，显示单元32可以包括串联的多个显示模组。其中，模组控制设备31可以包括信号生成模块、并串转换模块、传输模块，以及与显示单元32连接的串行输出接口。
其中，信号生成模块可用于接收图像帧信号，并根据图像帧信号生成待传输信号，待传输信号可以包括显示单元32中每个显示模组待显示的图像驱动信号，以及每个显示模组对应的控制驱动信号。
并串转换模块可用于将待传输信号转换为第一串行信号。
传输模块可用于通过串行输出接口将第一串行信号传输至显示单元32中串联的多个显示模组。
在一些实施方式中，上述并串转换模块可以为前述模组控制设备31中的主控芯片或转换芯片。
在一些实施方式中，上述并串转换模块可用于将并行输入接口传输的待传输信号转换为串行输出接口输出的第一串行信号。其中，串行输出接口可以为用于传输Serdes串行通信技术信号的接口。并行输入接口可以为用于传输TTL通信技术信号的接口，或者，可以为多路用于传输LVDS通信技术信号的接口。一些实施方式中，串行输出接口的引脚数量可以少于并行输入接口的引脚数量。
在一些实施方式中，上述串行输出接口的数量可以为多个，每个串行输出接口分别用于将所连接的显示单元32的第一串行信号传输至所连接的显示单元32中的显示模组。
在一些实施方式中，上述串行输出接口通过至少一对连接线与显示单元32连接。每一对连接线均可用于传输信号。连接线的具体数量可以根据实际情况进行调整，如果模组控制设备31带载的显示模组较多，则可以通过多对连接线与显示单元32连接。以两对连接线为例，其中一对连接线可用于传输上行信号，另一对连接线可用于传输下行信号。
在一些实施方式中，串行输出接口可以包含一个或多个电线接地端引脚(GND)和多对信号传输引脚，电线接地端引脚可以设置于多对信号传输引脚中的任意两对信号传输引脚之间。其中，信号传输引脚包括当不限于RX信号引脚、TX信号引脚。
具体而言，上述串行输出接口可以依次包括：一对或多对TX信号引脚、一对或多对RX信号引脚、一个或多个GND信号引脚。由于RX信号引脚传输的数据量相对较少，RX信号引脚的数量可以少于TX信号引脚的数量。GND信号引脚可以设置于其他引脚的中间，例如GND信号引脚可以设置在一对TX信号引脚和一对RX信号引脚之间，或者设置在一对TX信号引脚和另一对TX信号引脚之间，这样可以一定程度地降低信号引脚之间信号干扰问题的发生概率。
以8个引脚(引脚1至引脚8)为例，一些实施方式中，如图20所示，可以是引脚1、4、5、8分别为GND信号引脚，引脚2、3为一对TX信号引脚，引脚6、7为一对RX信号引脚。另一些实施方式中，可以是引脚1、2为一对TX信号引脚，引脚3、4为GND信号引脚，引脚5、6为另一对TX信号引脚，引脚7、8为一对RX信号引脚。
上述模组控制设备31的具体功能还可以参考前述LED显示屏及其控制***30中对模组控制设备31的描述。
相较于与相关技术，本申请的实施方式中，模组控制设备31可以将图像驱动信号和控制驱动信号一并以第一串行信号的形式传输至显示单元32中串联的多个显示模组，显示模组的控制模块不需要进行控制驱动信号的生成，可以选用处理能力相对较低的芯片，能够降低显示模组的成本。并且，由于模组控制设备31向显示模组传输的信号为串行信号，模组控制设备31不再需要通过HUB板上的交互接口来传输并行信号，或通过传统模组控制设备自带的HUB类接口来并行传输信号。通过在模组控制设备31上，配置串行输出接口作为交互接口，可以带载与相关技术中，即通过HUB板的并行带载方案中，相同数量的显示模组。而相关技术中同一LED数据组包含的并行信号也将归一化为一个串行信号，即LED显示屏及其控制***30支持带载一种固定显示模组数量的标准化显示屏，例如模组数量16个、24个等等。
相应的，本申请实施例还提供一种并串转换模块，配置于模组控制设备31中，模组控制设备31和与显示单元32连接，并串转换模块可用于将模组控制设备31生成的并行的待传输信号转换为第一串行信号，其中，待传输信号可包括显示单元32中每个显示模组待显示的图像驱动信号，以及每个显示模组对应的控制驱动信号，第一串行信号可以为模组控制设备31传输至显示单元32中串联的多个显示模组的信号。
其中，上述并串转换模块可以为前述模组控制设备31中的主控芯片或转换芯片。
在一些实施方式中，上述并串转换模块还可用于将模组控制设备31获取到的第二串行信号转换为第二并行信号，第二并行信号为显示模组的模组信号。
示例性的，请参考图7，并串转换模块的引脚可以包括：一对或多对LVDS TX引脚、一对LVDS TCLK引脚、一对或多对TX引脚。一些实施方式中，还可以包括一对或多对LVDS RX引脚、一对LVDS RCLK引脚，和/或，一对或多对RX引脚。
具体的，请参考图21，图21示出了并串转换模块的结构示意图，并串转换模块可以包括第一传输单元、串并转换单元、并串转换单元和第二传输单元。其中，第一传输单元可以指与控制器33的网口连接的并行传输接口。第二传输单元可以指与显示单元连接的交互接口。
其中，第一传输单元可用于接收图像帧信号，并根据图像帧信号生成待传输信号，或用于输出第二并行信号。
并串转换单元可用于将模组控制设备31生成的待传输信号转换为第一串行信号；
串并转换单元可用于将模组控制设备31获取到的第二串行信号转换为第二并行信号。
第二传输单元可用于输出第一串行信号，或用于获取第二并行信号。
应理解，上述并串转换模块还可以包括缓存单元、时钟控制单元等辅助实现并串转换模块功能的单元。
具体而言，上述并串转换模块可以包括处理器和存储器，存储器中可以存储有计算机程序。计算机程序被处理器执行时可以实现上述并串转换模块中第一传输单元、并串转换单元、串并转换单元和第二传输单元的功能。
上述并串转换模块的功能还可以具体参考前文对主控芯片、转换芯片、模组控制设备31、LED显示屏及其控制***30的描述，对此本申请不进行赘述。
本申请的另一些实施方式还提供一种LED显示屏，该LED显示屏包括一个或多个显示单元32，至少部分显示单元32包括串联的多个显示模组，每个显示模组配置有控制模块。显示模组的控制模块可用于从模组控制设备31发送的第一串行信号中解析得到同一显示单元32内每个显示模组待显示的图像驱动信号以及同一显示单元32内每个显示模组分别对应的控制驱动信号，并控制显示模组根据自身对应的控制驱动信号对自身待显示的图像驱动信号进行显示。
在一些实施方式中，上述LED显示屏还可以包括用于容置模组控制设备31的容置装置，容置装置上设置有至少一个模组控制设备，每个模组控制设备与至少一个显示单元连接。其中，容置装置可与显示单元一体化连接或分离设置。
示例性的，如图22所示，容置装置上可以并排设置有3个模组控制设备31，每个模组控制设备31与设置于容置装置上方的显示单元32连接，不同模组控制设备31连接的显示单元32拼接形成LED显示屏的显示区域。图22所示的容置装置设置于LED显示屏显示区域的下方，其他实施例中，容置装置也可以根据实际情况设置于任意位置，例如设置于LED显示屏的上方、左右两侧或者后侧。另一些实施方式中，容置装置还可以分离于LED显示屏，例如设置在LED显示屏一定距离范围内的任意位置。
上述实施方式中，用户只需要将控制器33与容置装置上的模组控制设备31连接，布线更加简明。
相较于相关技术，本申请提供的LED显示屏可以将显示模组串联形成显示单元32，模组控制设备31所传输的串行信号可以在串联的多个显示模组之间传递，使得各个显示模组从串行信号中解析得到同一显示单元32内每个显示模组待显示的图像驱动信号以及同一显示单元32内每个显示模组分别对应的控制驱动信号，并进一步截取自身的控制驱动信号和自身的图像驱动信号来实现显示功能。这种方式使得各个显示模组不需要生成控制驱动信号，因此可以使用处理能力相对较低的芯片，能够降低LED显示屏的整体成本。
并且，这种方式不需要每个显示模组均通过连接线与模组控制设备31直接连接，显示单元32中只需由一个显示模组与模组控制设备31直接连接，即可获取模组控制设备31发送的第一串行信号，并将第一串行信号拓传至串联的其他显示模组。由此可见，模组控制设备31与LED显示屏之间的连接线的数量减少，因此，整个LED显示屏及其控制***30的布线更加简单。
相应的，在本申请的实施方式中，还提供一种LED显示模组，该LED显示模组可以与其他显示模组串联形成显示单元32，显示单元32与模组控制设备31连接，LED显示模组配置有控制模块。显示模组的控制模块可用于从模组控制设备31发送的第一串行信号中解析得到同一显示单元32内每个显示 模组待显示的图像驱动信号以及同一显示单元32内每个显示模组分别对应的控制驱动信号，并控制显示模组根据自身对应的控制驱动信号对自身待显示的图像驱动信号进行显示。
上述显示模组的具体功能还可以参考前述LED显示屏及其控制***30中显示单元32内显示模组的描述。
相应的，在本申请的实施方式中，还提供一种控制模块，配置于显示模组中，显示模组可与其他显示模组串联形成显示单元32，显示单元32与模组控制设备31连接。控制模块可用于从模组控制设备31发送的第一串行信号中解析得到同一显示单元32内每个显示模组待显示的图像驱动信号，并根据控制驱动信号控制自身待显示的图像驱动信号的显示。
在一些实施方式中，控制模块可具体用于将通过串行输入接口输入的第一串行信号转换为并行输出接口输出的每个显示模组待显示的图像驱动信号和控制驱动信号，以从同一显示单元32内每个显示模组待显示的图像驱动信号和控制驱动信号中解析得到自身待显示的图像驱动信号以及自身对应的控制驱动信号。其中，串行输入接口可以为用于传输Serdes串行通信技术信号的接口。并行输出接口可以为多路用于传输LVDS通信技术信号的接口，或者，可以为用于传输TTL通信技术信号的接口。
在一些实施方式中，控制模块可具体用于从第一串行信号中解析得到自身待显示的图像驱动信号，并根据模组控制设备31发送的生成参数生成自身对应的控制驱动信号。
在一些实施方式中，控制模块还可用于获取显示模组的模组信息，并将模组信息转换为第二串行信号，第二串行信号为显示模组传输至模组控制设备31的信号。
示例性的，请参考图9，控制模块的引脚可以包括：一对或多对RX引脚、一对或多对TX1引脚、一组或多组图像驱动信号引脚(R1至RX、G1至GX，以及B1至BX)、一个或多个扫描控制信号引脚、一个或多个驱动控制信号引脚，以及，SPI接口引脚。
具体的，请参考图23，图23示出了控制模块的第一种结构示意图，控制模块可以包括串并转换单元、并串转换单元、转发单元、协议解析单元、显示驱动信号截取单元、展频单元、命令处理单元，以及仲裁单元。
其中，串并转换单元可用于将第一串行信号转换为每个显示模组待显示的图像驱动信号及每个显示模组分别对应的控制驱动信号。
转发单元可用于对每个显示模组待显示的图像驱动信号及每个显示模组分别对应的控制驱动信号进行处理，以将处理后的信号通过并串转换单元的转换传输至与显示模组串联的下一级显示模组。其中，转发单元的处理可以包括对排序信息进行更新，进而经过并串转换单元的转换生成转发给下一级显示模组的新的第一串行信号。
协议解析单元可用于对图像驱动信号和控制驱动信号进行解析。具体而言，协议解析单元的解析可以包括对图像驱动信号和控制驱动信号进行区分。
显示驱动信号截取单元可用于从每个显示模组待显示的图像驱动信号中截取显示模组自身待显示的图像驱动信号，以及从每个显示模组分别对应的控制驱动信号中截取显示模组自身对应的控制驱动信号。
展频单元可用于根据显示模组自身待显示的图像驱动信号和显示模组自身对应的控制驱动信号进行展频处理，以控制显示模组根据自身对应的控制驱动信号对自身待显示的图像驱动信号进行显示。展频处理可以提升EMC(电磁兼容)效果，包括但不限于将RGB错拍、滤波等处理。
命令处理单元可用于对命令进行处理，以获取显示模组的模组信息。具体来说，命令处理单元处理的命令可以是上位机或模组控制设备发送的回读命令，也可以是灯板发送的灯板命令。一些实施方式中，命令处理单元可根据回读命令，通过点检单元、SPI管理单元以及ADC采集单元分别获取点检信息、灯板FLASH信息以及模组状态信息。
仲裁单元可用于对模组信息和从下一级显示模组接收到的信号进行处理。具体的处理包括但不限于组包、依据一定的传输顺序对模组信息和从下一级显示模组接收到的信号进行传输，等等。
并串转换单元可用于将模组信息转换为第二串行信号。
一些实施方式中，上述控制模块可以还包括转换单元，转换单元与串并转换单元和/或并串转换单元连接，可用于对电路方向进行配置，以使信号(如回传信号、从下一级显示模组接收到的信号、第一串行信号等)从对应位置上的接口输入或输出。
需要说明的是，如图23所示，上述串并转换单元和并串转换单元分别可以为两个，其中一个串并转换单元和一个并串转换单元可用于接收及传输主串行信号，另一个串并转换单元和另一个并串转换单元可用于接收及传输备份串行信号以及模组信息。
另一些实施方式中，请参考图24，图24示出了控制模块的第二种结构示意图，与图23所示的控制模块相比，控制模块的显示驱动信号截取单元被替换为图像驱动信号截取单元和控制驱动信号生成单元。
具体而言，控制模块可以包括串并转换单元、并串转换单元、转发单元、协议解析单元、图像驱动信号截取单元、控制驱动信号生成单元、展频单元、命令处理单元，以及仲裁单元。
其中，串并转换单元可用于将第一串行信号转换为每个显示模组待显示的图像驱动信号及每个显示模组分别对应的控制驱动信号。
转发单元可用于对每个显示模组待显示的图像驱动信号及每个显示模组分别对应的控制驱动信号进行处理，以将处理后的信号通过并串转换单元的转换传输至与显示模组串联的下一级显示模组。其中，转发单元的处理可以包括对排序信息进行更新，进而经过并串转换单元的转换生成转发给下一级显示模组的新的第一串行信号。
协议解析单元可用于对图像驱动信号和控制驱动信号进行解析。具体而言，协议解析单元的解析可以包括对图像驱动信号和控制驱动信号进行区分，以将图像驱动信号发送给图像驱动信号截取单元，将控制驱动信号发送给控制驱动信号生成单元。
图像驱动信号截取单元可用于从每个显示模组待显示的图像驱动信号中截取显示模组自身待显示的图像驱动信号。
控制驱动信号生成单元可用于根据生成参数生成显示模组自身对应的控制驱动信号。
展频单元可用于根据显示模组自身待显示的图像驱动信号和显示模组自身对应的控制驱动信号进行展频处理，以控制显示模组根据自身对应的控制驱动信号对自身待显示的图像驱动信号进行显示。展频处理可以提升EMC(电磁兼容)效果，包括但不限于将RGB错拍、滤波等处理。
命令处理单元可用于对命令进行处理，以获取显示模组的模组信息。具体来说，命令处理单元处理的命令可以是上位机或模组控制设备发送的回读命令，也可以是灯板发送的灯板命令。一些实施方式中，命令处理单元可根据回读命令，通过点检单元、SPI管理单元以及ADC采集单元分别获取点检信息、灯板FLASH信息以及模组状态信息。
仲裁单元可用于对模组信息和从下一级显示模组接收到的信号进行处理。具体的处理包括但不限于组包、依据一定的传输顺序对模组信息和从下一级显示模组接收到的信号进行传输等等。
并串转换单元可用于将模组信息转换为第二串行信号。
一些实施方式中，上述控制模块可以还包括转换单元，转换单元与串并转换单元和/或并串转换单元连接，可用于对电路方向进行配置，以使信号(如回传信号、从下一级显示模组接收到的信号、第一串行信号等)从对应位置上的接口输入或输出。
此外，如图25所示，控制模块可以还包括串并转换单元、并串转换单元、转发单元、协议解析单元、图像驱动信号截取单元、图像处理单元、展频单元、命令处理单元，以及仲裁单元。
其中，串并转换单元可用于将第一串行信号转换为每个显示模组待显示的图像帧信号及每个显示模组分别对应的控制驱动信号。
转发单元可用于对每个显示模组待显示的图像帧信号及每个显示模组分别对应的控制驱动信号进行处理，以将处理后的信号通过并串转换单元的转换传输至与显示模组串联的下一级显示模组。其中，转发单元的处理可以包括对排序信息进行更新，进而经过并串转换单元的转换生成转发给下一级显示模组的新的第一串行信号。
协议解析单元可用于对图像帧信号和控制驱动信号进行解析。具体而言，协议解析单元的解析可以包括对图像帧信号和控制驱动信号进行区分，以将图像帧信号发送给图像处理单元，将控制驱动信号发送给控制驱动信号生成单元。
图像处理单元可用于从每个显示模组待显示的图像帧信号中截取显示模组自身待显示的图像帧信号，并根据图像帧信号生成自身待显示的图像驱动序号。
控制驱动信号生成单元可用于根据生成参数生成显示模组自身对应的控制驱动信号。
展频单元可用于根据显示模组自身待显示的图像驱动信号和显示模组自身对应的控制驱动信号进行展频处理，以控制显示模组根据自身对应的控制驱动信号对自身待显示的图像驱动信号进行显示。展频处理可以提升EMC(电磁兼容)效果，包括但不限于将RGB错拍、滤波等处理。
命令处理单元可用于对命令进行处理，以获取显示模组的模组信息。具体来说，命令处理单元处理的命令可以是上位机或模组控制设备发送的回读命令，也可以是灯板发送的灯板命令。一些实施方式中，命令处理单元可根据回读命令，通过点检单元、SPI管理单元以及ADC采集单元分别获取点检信息、灯板FLASH信息以及模组状态信息。
仲裁单元可用于对模组信息和从下一级显示模组接收到的信号进行处理。具体的处理包括但不限于组包、依据一定的传输顺序对模组信息和从下一级显示模组接收到的信号进行传输等等。
并串转换单元可用于将模组信息转换为第二串行信号。
一些实施方式中，上述控制模块可以还包括转换单元，转换单元与串并转换单元和/或并串转换单元连接，可用于对电路方向进行配置，以使信号(如回传信号、从下一级显示模组接收到的信号、第一串行信号等)从对应位置上的接口输入或输出。
应理解，上述并串转换模块还可以包括缓存单元、时钟控制单元、点检单元、SPI管理单元以及ADC采集单元等辅助实现并串转换模块功能的单元。
具体而言，上述信号处理单元可以包括处理器和存储器，存储器中可以存储有计算机程序，计算机程序被处理器执行时可以实现如图23所示的串并转换单元、并串转换单元、转发单元、协议解析单元、显示驱动信号截取单元、展频单元、命令处理单元，以及仲裁单元的功能。上述控制模块的功能。或者，计算机程序被处理器执行时可以实现如图24所示的串并转换单元、并串转换单元、转发单元、协议解析单元、图像驱动信号截取单元、控制驱动信号生成单元、展频单元、命令处理单元，以及仲裁单元的功能。又或者，计算机程序被处理器执行时可以实现如图25所示的串并转换单元、并串转换单元、转发单元、协议解析单元、图像处理单元、控制驱动信号生成单元、展频单元、命令处理单元，以及仲裁单元的功能。
上述控制模块的具体功能还可以参考还可以具体参考前文对LED显示屏及其控制***30的显示模组的控制模块的描述，对此本申请不进行赘述。
本领域技术人员可以理解，上述LED显示屏及其控制***30，或者，LED显示屏及其控制***30内的控制器33、模组控制设备31以及显示单元32，还可以包括更多或更少的部件，或者组合某些部件，或者不同的部件，例如控制器33还可以包括输入输出设备、网络接入设备、总线等。
所属领域的技术人员可以清楚地了解到，为了描述的方便和简洁，仅以上述各功能单元、模块的划分进行举例说明，实际应用中，可以根据需要而将上述功能分配由不同的功能单元、模块完成，即将所述装置的内部结构划分成不同的功能单元或模块，以完成以上描述的全部或者部分功能。实施例中的各功能单元、模块可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中，上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。另外，各功能单元、模块的具体名称也只是为了便于相互区分，并不用于限制本申请的保护范围。上述***中单元、模块的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。在上述实施例中，对各个实施例的描述都各有侧重，某个实施例中没有详述或记载的部分，可以参见其它实施例的相关描述。以上所述实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的精神和范围，均应包含在本申请的保护范围之内。

Claims (47)

  1. 一种LED显示控制方法，其特征在于，包括：
    模组控制设备生成待传输信号，所述待传输信号包括显示单元中每个显示模组待显示的图像驱动信号，所述显示单元包括串联的多个所述显示模组；所述模组控制设备将所述待传输信号转换为第一串行信号，并将所述第一串行信号传输至所述显示单元中串联的多个所述显示模组；
    所述显示单元中每个所述显示模组的控制模块分别从所述第一串行信号中解析得到每个所述显示模组自身待显示的图像驱动信号，以控制每个所述显示模组分别根据控制驱动信号对自身待显示的图像驱动信号进行显示。
  2. 如权利要求1所述的LED显示控制方法，其特征在于，所述待传输信号中还包括每个所述显示模组分别对应的控制驱动信号；
    所述显示单元中每个所述显示模组的控制模块分别从所述第一串行信号中解析得到每个所述显示模组自身待显示的图像驱动信号，以控制每个所述显示模组分别根据控制驱动信号对自身待显示的图像驱动信号进行显示，包括：
    所述显示单元中每个所述显示模组的控制模块分别对所述第一串行信号进行串并转换，并解析得到自身待显示的图像驱动信号以及自身对应的控制驱动信号，以控制每个所述显示模组根据自身对应的控制驱动信号对自身待显示的图像驱动信号进行显示。
  3. 如权利要求1所述的LED显示控制方法，其特征在于，所述待传输信号还包括用于生成每个所述显示模组分别对应的所述控制驱动信号的生成参数；
    所述显示单元中每个所述显示模组的控制模块分别从所述第一串行信号中解析得到每个所述显示模组自身待显示的图像驱动信号，以控制每个所述显示模组分别根据控制驱动信号对自身待显示的图像驱动信号进行显示，包括：
    所述显示单元中每个所述显示模组的控制模块分别对所述第一串行信号进行串并转换，解析得到自身待显示的图像驱动信号和自身对应的生成参数，并根据所述显示模组自身对应的生成参数生成对应的控制驱动信号，以控制每个所述显示模组根据自身对应的控制驱动信号对自身待显示的图像驱动信号进行显示。
  4. 如权利要求2所述的LED显示控制方法，其特征在于，所述显示单元中每个所述显示模组的控制模块分别对所述第一串行信号进行串并转换，并解析得到自身待显示的图像驱动信号以及自身对应的控制驱动信号，包括：
    所述显示单元中每个所述显示模组的控制模块分别将所述第一串行信号转换为第一并行信号，并从所述第一并行信号中截取子并行信号，所述子并行信号包括所述显示模组自身待显示的图像驱动信号以及自身对应的控制驱动信号。
  5. 如权利要求1所述的LED显示控制方法，其特征在于，在所述模组控制设备将所述待传输信号转换为第一串行信号，并将所述第一串行信号传输至所述显示单元中串联的多个所述显示模组之后，所述LED显示控制方法还包括：
    每个所述显示模组的控制模块将接收到的所述第一串行信号传输至与所述显示模组无线通讯的下一级显示模组。
  6. 如权利要求1所述的LED显示控制方法，其特征在于，所述LED显示控制方法还包括：
    所述显示模组的控制模块获取所述显示模组的模组信息，并将所述模组信息以第二串行信号的形式传输至所述模组控制设备。
  7. 如权利要求6所述的LED显示控制方法，其特征在于，
    所述模组信息为所述显示模组内的LED灯珠的校正信息；和/或，
    所述模组信息为所述显示模组的模组状态信息；和/或，
    所述模组信息为所述显示模组内的LED灯珠的点检信息。
  8. 如权利要求6所述的LED显示控制方法，其特征在于，所述显示模组将所述模组信息以第二串行信号的形式传输至所述模组控制设备之后，所述LED显示控制方法还包括：
    所述模组控制设备将所述第二串行信号转换为第二并行信号，所述第二并行信号携带有所述模组信息，所述第二并行信号为所述模组控制设备待传输至控制器的信号。
  9. 如权利要求1所述的LED显示控制方法，其特征在于，所述模组控制设备配置有主控芯片和转换芯片；
    所述模组控制设备生成待传输信号，包括：
    所述模组控制设备的主控芯片生成所述待传输信号；
    所述模组控制设备将所述待传输信号转换为第一串行信号，包括：
    所述模组控制设备的转换芯片将所述模组控制设备的主控芯片生成的所述待传输信号转换为所述第一串行信号。
  10. 如权利要求1所述的LED显示控制方法，其特征在于，所述模组控制设备配置有主控芯片；
    所述模组控制设备生成待传输信号，包括：
    所述模组控制设备的主控芯片生成所述待传输信号；
    所述模组控制设备将所述待传输信号转换为第一串行信号，包括：
    所述模组控制设备的主控芯片将所述待传输信号转换为所述第一串行信号。
  11. 如权利要求1所述的LED显示控制方法，其特征在于，在所述模组控制设备生成待传输信号之前，所述LED显示控制方法包括：
    控制器获取每个所述显示模组待显示的图像帧信号，并对每个所述显示模组待显示的图像帧信号进行压缩，得到压缩后的信号；
    所述控制器将所述压缩后的信号传输至所述模组控制设备。
  12. 如权利要求11所述的LED显示控制方法，其特征在于，所述模组控制设备生成待传输信号，包括：
    所述模组控制设备获取所述压缩后信号，并对所述压缩后的信号进行解压，得到每个所述显示模组待显示的图像帧信号，以根据所述图像帧信号生成所述待传输信号。
  13. 如权利要求1至12任意一项所述的LED显示控制方法，其特征在于，所述第一串行信号携带有排序信息；
    所述模组控制设备将所述第一串行信号传输至所述显示单元中串联的多个所述显示模组，包括：
    所述模组控制设备将所述第一串行信号传输至所述显示单元中的第一级显示模组；
    所述显示单元中每个所述显示模组的控制模块分别对接收到的第一串行信号中携带的排序信息进行更新，并将更新排序信息后的第一串行信号转发至下一级显示模组。
  14. 如权利要求1至12任意一项所述的LED显示控制方法，其特征在于，所述第一串行信号包括主串行信号和备份串行信号，所述主串行信号和所述备份串行信号为发送至同一所述显示单元的传输方向不同的信号；
    所述显示模组的控制模块从所述第一串行信号中解析得到每个所述显示模组自身待显示的图像驱动信号，以控制每个所述显示模组分别根据控制驱动信号对自身待显示的图像驱动信号进行显示，包括：
    所述显示模组的控制模块分别从所述主串行信号和所述备份串行信号中解析得到主图像驱动信号和备份图像驱动信号；
    所述显示模组的控制模块控制每个所述显示模组根据所述控制驱动信号对所述主图像驱动信号进行显示，并在所述主串行信号存在异常时，控制每个所述显示模组根据所述控制驱动信号对所述备份图像驱动信号进行显示。
  15. 如权利要求1至12任意一项所述的LED显示控制方法，其特征在于，所述模组控制设备将所述第一串行信号传输至所述显示单元中串联的多个所述显示模组，包括：
    所述模组控制设备通过主串行输出接口将主串行信号传输至所述显示单元，并通过备份串行输出接口将备份串行信号传输至所述显示单元，所述主串行输出接口与所述备份串行输出接口为同一所述模组控制设备的不同串行输出接口。
  16. 如权利要求1至12任意一项所述的LED显示控制方法，其特征在于，所述模组控制设备包括主模组控制设备和备份模组控制设备，所述主模组控制设备与所述备份模组控制设备为不同的模组控制设备；
    所述模组控制设备将所述第一串行信号传输至所述显示单元中串联的多个所述显示模组，包括：
    所述主模组控制设备将主串行信号传输至所述显示单元；
    所述备份模组控制设备将备份串行信号传输至所述显示单元。
  17. 一种LED显示屏及其控制***，其特征在于，包括模组控制设备及与所述模组控制设备连接的显示单元，所述显示单元包括串联的多个显示模组，所述显示模组配置有控制模块；
    所述模组控制设备用于生成待传输信号，将所述待传输信号转换为第一串行信号，并将所述第一串行信号传输至所述显示单元中串联的多个所述显示模组，所述待传输信号包括显示单元中每个显示模组待显示的图像驱动信号；
    所述显示模组的控制模块用于从所述第一串行信号中解析得到每个所述显示模组待显示的图像驱动信号，以控制每个所述显示模组根据控制驱动信号对自身待显示的图像驱动信号进行显示。
  18. 如权利要求17所述的LED显示屏及其控制***，其特征在于，所述LED显示屏及其控制***还包括与所述模组控制设备连接的电源；
    所述模组控制设备还用于获取所述电源输出的供电信号，并将所述供电信号传输至所述显示单元中串联的多个所述显示模组。
  19. 如权利要求17所述的LED显示屏及其控制***，其特征在于，所述模组控制设备配置有主控芯片和转换芯片；
    所述模组控制设备的主控芯片用于生成所述待传输信号；
    所述模组控制设备的转换芯片用于将所述模组控制设备的主控芯片生成的所述待传输信号转换为所述第一串行信号。
  20. 如权利要求17所述的LED显示屏及其控制***，其特征在于，所述模组控制设备配置有主控芯片；
    所述模组控制设备的主控芯片用于生成所述待传输信号，并将所述待传输信号转换为所述第一串行信号。
  21. 如权利要求17至20任意一项所述的LED显示屏及其控制***，其特征在于，所述LED显示屏及其控制***还包括与所述模组控制设备连接的控制器；
    所述控制器用于获取每个所述显示模组待显示的图像帧信号，将每个所述显示模组待显示的图像帧信号传输至所述模组控制设备；
    所述模组控制设备用于获取所述控制器发送的每个所述显示模组待显示的图像帧信号，并根据所述图像帧信号生成所述待传输信号。
  22. 一种LED显示控制方法，其特征在于，包括：
    接收图像帧信号，并根据所述图像帧信号生成待传输信号，所述待传输信号包括显示单元中每个显示模组待显示的图像驱动信号，以及每个所述显示模组对应的控制驱动信号，所述显示单元包括串联的多个所述显示模组；
    将所述待传输信号转换为第一串行信号；
    将所述第一串行信号传输至所述显示单元中串联的多个所述显示模组。
  23. 一种模组控制设备，其特征在于，所述模组控制设备用于控制显示单元，所述显示单元包括串联的多个显示模组，所述模组控制设备包括信号接收模块、并串转换模块、传输模块以及与所述显示单元连接的串行输出接口；
    所述信号生成模块用于接收图像帧信号，并根据所述图像帧信号生成待传输信号，所述待传输信号包括显示单元中每个所述显示模组待显示的图像驱动信号，以及每个所述显示模组对应的控制驱动信号；
    所述并串转换模块用于将所述待传输信号转换为第一串行信号；
    所述传输模块用于通过所述串行输出接口将所述第一串行信号传输至所述显示单元中串联的多个所述显示模组。
  24. 如权利要求23所述的模组控制设备，其特征在于，所述并串转换模块为所述模组控制设备中的主控芯片或转换芯片。
  25. 如权利要求23所述的模组控制设备，其特征在于，所述并串转换模块用于将并行输入接口传输的待传输信号转换为串行输出接口输出的第一串行信号。
  26. 如权利要求25所述的模组控制设备，其特征在于，所述串行输出接口为用于传输Serdes串行通信技术信号的接口。
  27. 如权利要求25所述的模组控制设备，其特征在于，所述并行输入接口为多路用于传输LVDS通信技术信号的接口，或者，所述并行输入接口为用于传输TTL通信技术信号的接口。
  28. 如权利要求25所述的模组控制设备，其特征在于，所述串行输出接口的引脚数量少于所述并行输入接口的引脚数量。
  29. 如权利要求23所述的模组控制设备，其特征在于，所述串行输出接口的数量为多个，每个所述串行输出接口分别用于将所连接的显示单元的第一串行信号传输至所连接的显示单元中串接的多个所述显示模组。
  30. 如权利要求23至29任意一项所述的模组控制设备，其特征在于，所述串行输出接口包含一个或多个电线接地端引脚和多对信号传输引脚，所述电线接地端引脚设置于所述多对信号传输引脚中的任意两对信号传输引脚之间。
  31. 一种并串转换模块，其特征在于，配置于模组控制设备中，所述模组控制设备和与显示单元连接，所述显示单元包括串联的多个显示模组；
    所述并串转换模块用于将所述模组控制设备生成的并行的待传输信号转换为第一串行信号，其中，所述待传输信号包括显示单元中每个所述显示模组待显示的图像驱动信号，以及每个所述显示模组对应的控制驱动信号，所述第一串行信号为所述模组控制设备传输至所述显示单元中串联的多个显示模组的信号。
  32. 如权利要求31所述的并串转换模块，其特征在于，所述并串转换模块还用于将所述模组控制设备获取到的第二串行信号转换为第二并行信号，所述第二并行信号为所述显示模组的模组信号。
  33. 如权利要求31所述的并串转换模块，其特征在于，所述并串转换模块包括第一传输单元、串并转换单元、并串转换单元、第二传输单元；
    所述第一传输单元用于接收图像帧信号，并根据所述图像帧信号生成所述待传输信号，或用于输出第二并行信号；
    所述并串转换单元用于将所述模组控制设备生成的所述待传输信号转换为所述第一串行信号；
    所述串并转换单元用于将所述模组控制设备获取到的第二串行信号转换为所述第二并行信号；
    所述第二传输单元用于输出所述第一串行信号，或用于获取所述第二并行信号。
  34. 如权利要求31至33任意一项所述的并串转换模块，其特征在于，所述并串转换模块的引脚包括：一对或多对LVDS TX引脚、一对LVDS TCLK引脚、一对或多对TX引脚。
  35. 如权利要求34所述的并串转换模块，其特征在于，所述并串转换模块的引脚还包括一对或多对LVDS RX引脚、一对LVDS RCLK引脚，和/或一对或多对RX引脚。
  36. 一种LED显示屏，其特征在于，所述LED显示屏包括一个或多个显示单元，至少部分所述显示单元包括串联的多个显示模组，每个所述显示模组配置有控制模块；
    所述显示模组的控制模块用于从模组控制设备发送的第一串行信号中解析得到同一显示单元内每个所述显示模组待显示的图像驱动信号以及同一显示单元内每个所述显示模组分别对应的控制驱动信号，并控制所述显示模组根据自身对应的控制驱动信号对自身待显示的图像驱动信号进行显示。
  37. 如权利要求36所述的LED显示屏，其特征在于，所述LED显示屏还包括用于容置所述模组控制设备的容置装置，所述容置装置与所述显示单元一体化连接或分离设置，所述容置装置上设置有至少一个所述模组控制设备，每个所述模组控制设备与至少一个所述显示单元连接。
  38. 一种LED显示模组，其特征在于，所述LED显示模组与其他显示模组串联形成显示单元，所述显示单元与模组控制设备连接，所述LED显示模组配置有控制模块；
    所述显示模组的控制模块用于从模组控制设备发送的第一串行信号中解析得到同一显示单元内每个所述显示模组待显示的图像驱动信号以及同一显示单元内每个所述显示模组分别对应的控制驱动信号，并控制所述显示模组根据自身对应的控制驱动信号对自身待显示的图像驱动信号进行显示。
  39. 一种控制模块，其特征在于，配置于显示模组中，所述显示模组与其他显示模组串联形成显示单元，所述显示单元与模组控制设备连接；
    所述控制模块用于从模组控制设备发送的第一串行信号中解析得到同一显示单元内每个所述显示模组待显示的图像驱动信号，并根据控制驱动信号控制自身待显示的图像驱动信号的显示。
  40. 如权利要求39所述的控制模块，其特征在于，所述控制模块用于将通过串行输入接口输入的第一串行信号转换为并行输出接口输出的每个所述显示模组待显示的图像驱动信号和控制驱动信号，以从同一显示单元内每个所述显示模组待显示的图像驱动信号和控制驱动信号中解析得到自身待显示的图像驱动信号以及自身对应的控制驱动信号。
  41. 如权利要求39所述的控制模块，其特征在于，所述控制模块用于从所述第一串行信号中解析得到自身待显示的图像驱动信号及生成参数，并根据所述生成参数生成自身对应的控制驱动信号。
  42. 如权利要求39所述的控制模块，其特征在于，所述控制模块还用于获取所述显示模组的模组信息，并将所述模组信息转换为第二串行信号，所述第二串行信号为所述显示模组传输至所述模组控制设备的信号。
  43. 如权利要求40所述的控制模块，其特征在于，所述串行输入接口为用于传输Serdes串行通信技术信号的接口。
  44. 如权利要求40所述的控制模块，其特征在于，所述并行输出接口为多路用于传输LVDS通信技术信号的接口，或者，所述并行输出接口为用于传输TTL通信技术信号的接口。
  45. 如权利要求39所述的控制模块，其特征在于，所述控制模块包括串并转换单元、并串转换单元、转发单元、协议解析单元、显示驱动信号截取单元、展频单元、命令处理单元、仲裁单元；
    所述串并转换单元用于将所述第一串行信号转换为每个所述显示模组待显示的图像驱动信号及每个所述显示模组分别对应的控制驱动信号；
    所述转发单元用于对每个所述显示模组待显示的图像驱动信号及每个所述显示模组分别对应的控制驱动信号进行处理，以将处理后的信号通过所述并串转换单元的转换传输至与所述显示模组串联的下一级显示模组；
    所述协议解析单元用于对所述图像驱动信号和所述控制驱动信号进行解析；
    所述显示驱动信号截取单元用于从每个所述显示模组待显示的图像驱动信号中截取所述显示模组自身待显示的图像驱动信号，以及从每个所述显示模组分别对应的控制驱动信号中截取所述显示模组自身对应的控制驱动信号；
    所述展频单元用于根据所述显示模组自身待显示的图像驱动信号和所述显示模组自身对应的所述控制驱动信号进行展频处理，以控制所述显示模组根据自身对应的控制驱动信号对自身待显示的图像驱动信号进行显示；
    所述命令处理单元用于对命令进行处理，以获取所述显示模组的模组信息；
    所述仲裁单元用于对所述模组信息和从下一级显示模组接收到的信号进行处理；
    所述并串转换单元用于将所述模组信息转换为第二串行信号。
  46. 如权利要求39所述的控制模块，其特征在于，所述控制模块包括串并转换单元、并串转换单元、转发单元、协议解析单元、图像驱动信号截取单元、控制驱动信号生成单元、展频单元、命令处理单元、仲裁单元；
    所述串并转换单元用于将所述第一串行信号转换为每个所述显示模组待显示的图像驱动信号及生成参数；
    所述转发单元用于对每个所述显示模组待显示的图像驱动信号及所述生成参数进行处理，以将处理后的信号通过所述并串转换单元的转换传输至与所述显示模组串联的下一级显示模组；
    所述协议解析单元用于对所述图像驱动信号和所述生成参数进行解析；
    所述图像驱动信号截取单元用于从每个所述显示模组待显示的图像驱动信号中截取所述显示模组自身待显示的图像驱动信号；
    所述控制驱动信号生成单元用于根据生成参数生成所述显示模组自身对应的所述控制驱动信号；
    所述展频单元用于根据所述显示模组自身待显示的图像驱动信号和所述显示模组自身对应的所述控制驱动信号进行展频处理，以控制所述显示模组根据自身对应的控制驱动信号对自身待显示的图像驱动信号进行显示；
    所述命令处理单元用于对命令进行处理，以获取所述显示模组的模组信息；
    所述仲裁单元用于对所述模组信息和从下一级显示模组接收到的信号进行处理；
    所述并串转换单元用于将所述模组信息转换为第二串行信号。
  47. 如权利要求39至46任意一项所述的控制模块，其特征在于，所述控制模块的引脚包括一对或多对RX引脚、一对或多对TX1引脚、一组或多组图像驱动信号引脚、一个或多个扫描控制信号引脚、一个或多个驱动控制信号引脚，以及，SPI接口引脚。
PCT/CN2022/130950 2022-11-09 2022-11-09 Led显示控制方法、led显示屏及其控制***和相应组件 WO2024098298A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2022/130950 WO2024098298A1 (zh) 2022-11-09 2022-11-09 Led显示控制方法、led显示屏及其控制***和相应组件

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2022/130950 WO2024098298A1 (zh) 2022-11-09 2022-11-09 Led显示控制方法、led显示屏及其控制***和相应组件

Publications (1)

Publication Number Publication Date
WO2024098298A1 true WO2024098298A1 (zh) 2024-05-16

Family

ID=91031629

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/130950 WO2024098298A1 (zh) 2022-11-09 2022-11-09 Led显示控制方法、led显示屏及其控制***和相应组件

Country Status (1)

Country Link
WO (1) WO2024098298A1 (zh)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106652897A (zh) * 2016-12-26 2017-05-10 西安诺瓦电子科技有限公司 Led显示屏控制***
CN106652893A (zh) * 2016-12-26 2017-05-10 西安诺瓦电子科技有限公司 Led显示屏控制***
WO2020030993A1 (en) * 2018-08-09 2020-02-13 Santanu Roy Microcontroller based control of light emitting diode (led) video wall
CN112419968A (zh) * 2020-11-27 2021-02-26 杭州海康威视数字技术股份有限公司 一种数据显示方法及显示屏
CN215868585U (zh) * 2021-08-23 2022-02-18 西安诺瓦星云科技股份有限公司 显示屏控制板卡及显示屏控制***
CN217467969U (zh) * 2022-04-29 2022-09-20 深圳市睿思韦尔电子技术有限公司 一种采用转换器传输信号的led显示屏模组

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106652897A (zh) * 2016-12-26 2017-05-10 西安诺瓦电子科技有限公司 Led显示屏控制***
CN106652893A (zh) * 2016-12-26 2017-05-10 西安诺瓦电子科技有限公司 Led显示屏控制***
WO2020030993A1 (en) * 2018-08-09 2020-02-13 Santanu Roy Microcontroller based control of light emitting diode (led) video wall
CN112419968A (zh) * 2020-11-27 2021-02-26 杭州海康威视数字技术股份有限公司 一种数据显示方法及显示屏
CN215868585U (zh) * 2021-08-23 2022-02-18 西安诺瓦星云科技股份有限公司 显示屏控制板卡及显示屏控制***
CN217467969U (zh) * 2022-04-29 2022-09-20 深圳市睿思韦尔电子技术有限公司 一种采用转换器传输信号的led显示屏模组

Similar Documents

Publication Publication Date Title
CN106652894B (zh) Led显示屏控制***
US10593256B2 (en) LED display device and method for operating the same
CN204904803U (zh) 扫描卡、led灯板、转接卡与led显示屏控制***
US9747872B2 (en) LED display device and method for operating the same
CN209297726U (zh) 显示控制卡以及显示屏控制***
CN105047134A (zh) Led灯板、灯板模组以及led显示屏控制***
CN105141877A (zh) 一种基于可编程器件的信号转换装置
US9704430B2 (en) LED display device and method for operating the same
CN105047135A (zh) 灯板模组、箱体以及led显示屏***
CN109429016A (zh) 显示控制***
CN108345553A (zh) 一种星载高分辨成像数据传输与采集***
US20100103183A1 (en) Remote multiple image processing apparatus
CN106652892B (zh) Led灯板模组
CN104240641A (zh) 一种led显示屏控制方法及控制***
WO2024098298A1 (zh) Led显示控制方法、led显示屏及其控制***和相应组件
CN212343803U (zh) 一种ops设备的网络连接装置及其会议平板
TWI736937B (zh) 同步調整螢幕設定的方法及相關裝置
CN204948223U (zh) 一种基于可编程器件的信号转换装置
WO2021016974A1 (zh) 数据处理方法、装置和***以及***控制器和模组控制器
CN115334277B (zh) 一种电子内窥镜、电子内窥镜视频传输***及方法
CN105551430A (zh) Led箱体和led显示屏***
CN113380181B (zh) 显示屏校正***
CN213213651U (zh) 视频处理器
CN212278336U (zh) 背板和视频处理设备
CN211239967U (zh) 显示控制器、显示控制***和led显示***

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22964772

Country of ref document: EP

Kind code of ref document: A1