LED display module and LED display screen

Abstract

The embodiment of the invention provides an LED display module and an LED display screen. The LED display module comprises a flexible LED lamp panel, a plurality of magnetic attraction pieces, an adapter plate and a power panel. A plurality of magnetic attraction pieces are arranged on the flexible LED lamp panel, the LED display module is fixed to the metal support of the bent wall face through the magnetic attraction pieces, mounting and dismounting of the LED display module can be simplified, and maintenance of the LED display module is facilitated. The adapter plate and the power panel are respectively arranged in different areas, so that the thickness of the LED display module can be reduced, and the light and thin design of the LED display module is facilitated. As the signal lines at the two ends of the adapter plate and the signal lines at the two ends of the power panel are in the horizontal direction, the magnetic attraction pieces are only distributed at intervals in the horizontal direction of the LED lamp panel, and no magnetic attraction piece is arranged in the vertical direction of the LED lamp panel, when the LED display modules are cascaded in the horizontal direction, the protruding and bulging phenomena caused by intersection of the signal lines, the power lines and the magnetic attraction pieces are avoided, and the display effect is improved. And the flatness of the LED display module is improved.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of LED display technology, and in particular to an LED display module and an LED display screen. Background Art

[0002] A light emitting diode (LED) display module is a display screen that displays text, images, animations and other information by controlling the display mode of semiconductor light emitting diodes. It has the characteristics of high screen brightness, high clarity, flexible display functions and arbitrary combination of screen area.

[0003] In some large curved walls, LED display modules need to be bent and spliced ​​into a curved screen that fits the curved wall. In the related art, when LED display modules are bent and spliced ​​into a curved screen, the flatness of the LED display modules is poor and the installation is complicated. Summary of the invention

[0004] In order to overcome the problems existing in the related art, the present application provides an LED display module and an LED display screen, which have high flatness and are easy to install.

[0005] According to a first aspect of an embodiment of the present application, there is provided an LED display module, comprising a flexible LED light board, a plurality of magnetic suction members, an adapter board and a power board;

[0006] A first surface of the flexible LED light board is provided with a plurality of magnetic suction parts along the bending direction of the flexible LED light board, and the flexible LED light board is fixed on the metal bracket of the curved wall by the plurality of magnetic suction parts; a second surface of the flexible LED light board opposite to the first surface is provided with a plurality of LED lamp beads;

[0007] A plurality of magnetic elements divide the first surface of the flexible LED lamp board into at least a first area and a second area; the adapter board is arranged in the first area, the power board is arranged in the second area, the plurality of LED lamp beads and the adapter board are electrically connected to the power board; the plurality of LED lamp beads are signal-connected to the adapter board;

[0008] Signal lines for cascading with adapter boards of other LED display modules are arranged at both ends of the adapter board, and power lines for cascading with power boards of other LED display modules are arranged at both ends of the power board.

[0009] According to the second aspect of the embodiment of the present application, there is provided an LED display screen, comprising a plurality of LED display modules as described above and a driving circuit arranged in an array, the driving circuit comprising a controller and a power adapter; the controller comprising a plurality of signal output terminals, each signal output terminal being connected in sequence to a plurality of LED display modules in the same row through a signal line; the power adapter comprising a plurality of power output terminals, each power output terminal being connected in sequence to a plurality of LED display modules in the same row through a power line.

[0010] The embodiment of the present application can simplify the installation and disassembly of the LED display module and facilitate the maintenance of the LED display module by setting a number of magnetic suction parts on the flexible LED light board and fixing the LED display module on the metal bracket of the curved wall with the magnetic suction parts. Since the first area and the second area are arranged at intervals in the vertical direction, the signal lines at both ends of the adapter board and the signal lines at both ends of the power board will not overlap or squeeze each other, avoiding signal interference between the lines and improving the display effect of the LED display module. In addition, the adapter board and the power board are respectively arranged in different areas, which can reduce the thickness of the LED display module and is conducive to the thin and light design of the LED display module. Furthermore, since the signal lines at both ends of the adapter board and the signal lines at both ends of the power board are in the horizontal direction, the magnetic suction parts are only distributed at intervals along the horizontal direction of the LED light board, and there are no magnetic suction parts in the vertical direction of the LED light board. Therefore, when each LED display module is cascaded in the horizontal direction, the bulging phenomenon caused by the intersection of the signal line and the power line with the magnetic suction parts is avoided, and the flatness of the LED display module is improved.

[0011] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application.

[0012] For better understanding and implementation, the present invention is described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of an LED display module according to an embodiment of the present application;

[0014] Figure 2 This is a schematic diagram of the structure of an LED display module according to an embodiment of the present application;

[0015] Figure 3 This is a schematic diagram of the circuit structure of an adapter board in an LED display module according to an embodiment of the present application;

[0016] Figure 4 This is a schematic diagram of the circuit structure of a power board in an LED display module according to an embodiment of the present application;

[0017] Figure 5This is a schematic diagram of the structure of an LED display screen shown in one embodiment of the present application. DETAILED DESCRIPTION

[0018] In order to make the objectives, technical solutions and advantages of the present application more clear, the embodiments of the present application will be further described in detail below with reference to the accompanying drawings.

[0019] It should be clear that the described embodiments are only the first part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0020] When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0021] In the description of the present application, it should be understood that the terms "first", "second", "third", etc. are only used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence, nor can they be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances. The singular forms of "a", "said", and "the" used in the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings. The words "if" / "if" used herein can be interpreted as "at the time of" or "when" or "in response to determination". In addition, in the description of the present application, unless otherwise specified, "multiple" refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships can exist, for example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the objects associated before and after are in an "or" relationship.

[0022] The inventor discovered in the process of implementing this application that in the related art, on some large-area curved walls, a single LED display module is made small, and the hinge is used to slightly bend the angle to control the seams between the LED display modules, so as to achieve a gradual bending transition of the entire screen. Since the LED display modules of the entire screen are gradually bent one by one, the flatness is poor, which will give users a stiff viewing experience. In addition, the LED display modules connected by hinges are often complicated to install and disassemble, which is not conducive to later maintenance.

[0023] To this end, the present application simplifies the installation and disassembly of the LED display module and facilitates the maintenance of the LED display module by setting a number of magnetic suction parts on the flexible LED light board and fixing the LED display module on the metal bracket of the curved wall with the magnetic suction parts. Since the first area and the second area are arranged at intervals in the vertical direction, the signal lines at both ends of the adapter board and the signal lines at both ends of the power board will not overlap or squeeze each other, avoiding signal interference between the lines and improving the display effect of the LED display module. In addition, the adapter board and the power board are respectively arranged in different areas, which can reduce the thickness of the LED display module and is conducive to the thin and light design of the LED display module. Furthermore, since the signal lines at both ends of the adapter board and the signal lines at both ends of the power board are in the horizontal direction, the magnetic suction parts are only distributed at intervals along the horizontal direction of the LED light board, and there is no magnetic suction part in the vertical direction of the LED light board. Therefore, when each LED display module is cascaded in the horizontal direction, the bulging phenomenon caused by the intersection of the signal line and the power line with the magnetic suction parts is avoided, and the flatness of the LED display module is improved.

[0024] See also Figure 1 , which is a schematic diagram of the structure of the LED display module shown in the embodiment of the present application. The LED display module provided in the embodiment of the present application includes a flexible LED light board 10, a plurality of magnetic suction parts 20, an adapter board 30 and a power board 40;

[0025] The first surface of the flexible LED light board 10 is provided with at least one row of magnetic attraction component groups 2 at intervals along a first direction, and the magnetic attraction component group 2 includes a plurality of magnetic attraction components 20 arranged at intervals along a second direction, and the first direction is perpendicular to the second direction; the flexible LED light board 10 is fixed on the metal bracket of the curved wall by adsorption of the plurality of magnetic attraction components 20; the second surface of the flexible LED light board 10, which is arranged opposite to the first surface, is provided with a plurality of LED lamp beads;

[0026] A plurality of magnetic members 20 divide the first surface of the flexible LED lamp board 10 into at least a first area 11 and a second area 12; an adapter board 30 is arranged in the first area, a power board 40 is arranged in the second area, a plurality of LED lamp beads and the adapter board 30 are electrically connected to the power board 40; a plurality of LED lamp beads are signal-connected to the adapter board 30;

[0027] Both ends of the adapter board 30 are provided with signal lines for cascading with adapter boards 30 of other LED display modules, and both ends of the power board 40 are provided with power lines for cascading with power boards 40 of other LED display modules; the directions of the signal lines and the power lines are consistent with the second direction.

[0028] Among them, the first side of the flexible LED light board 10 is the back side of the LED light board, and the second side of the flexible LED light board 10 is the front side of the LED light board. The front side of the LED light board is installed with a plurality of LED lamp beads arranged in an array, and the LED lamp beads include red lamp beads and blue-green lamp beads.

[0029] Among them, a plurality of magnetic parts 20, an adapter board 30 and a power board 40 are installed on the back of the LED light board. Specifically, the magnetic part 20 includes a magnet housing and a magnet, and the magnet housing is screwed to the back of the flexible LED light board 10, and the magnet is installed in the magnet housing. Two bosses are arranged on the back of the LED light board, and the adapter board 30 is installed in one boss, and the power board 40 is installed in the other boss.

[0030] Among them, a driving chip is also installed on the back of the LED light board. The driving chip includes a row chip and a column chip. The row chip is used to drive and control several rows of LED lamp beads on the front of the LED light board, and the column chip is used to drive and control several columns of LED lamp beads on the front of the LED light board.

[0031] The first direction and the second direction are perpendicular to each other, the first direction can be the horizontal direction of the flexible LED light board 10, and the second direction is the vertical direction of the flexible LED light board 10. The first direction can also be the vertical direction of the flexible LED light board 10, and the second direction is the horizontal direction of the flexible LED light board 10.

[0032] The first area is the installation area of ​​the adapter board 30, and the second area is the installation area of ​​the power board 40. The first area and the second area are arranged at intervals. For example, a row of magnetic suction components divides the flexible LED light board 10 into two upper and lower areas, the first area is the upper area, and the second area is the lower area.

[0033] The adapter board 30 is a HUB board, which is used to obtain the image data and control signals in the signal line and process the image data and control signals.

[0034] The power board 40 is used to obtain the voltage signal in the power line, and convert the voltage signal into the voltage signal required by the LED light board and the adapter board 30 to provide power for the LED light board and the adapter board 30 .

[0035] Among them, several LED lamp beads are electrically connected to the power board 40 through wires, the adapter board 30 is electrically connected to the power board 40 through wires, and several LED lamp beads are signal-connected to the adapter board 30 through signal lines.

[0036] In an embodiment of the present application, a plurality of rows of magnetic component groups are arranged on the back side of the flexible LED light board 10 along the vertical direction (Y-axis direction), and each row of magnetic component groups includes a plurality of magnetic components 20 arranged at intervals in the horizontal direction (X-axis direction). The plurality of rows of magnetic component groups divide the back side of the flexible LED light board 10 into a plurality of areas from top to bottom along the vertical direction. Any two areas are selected from the plurality of areas as the first area and the second area respectively, a transfer board 30 is installed in the first area, and a power board 40 is installed in the second area.

[0037] One end of the adapter board 30 of the LED display module is connected to one end of the adapter board 30 of the previous LED display module through a horizontal signal line, and the other end of the adapter board 30 of the LED display module is connected to one end of the adapter board 30 of the next LED display module through a horizontal signal line. One end of the power board 40 of the LED display module is connected to one end of the power board 40 of the previous LED display module through a horizontal power line, and the other end of the power board 40 of the LED display module is connected to one end of the power board 40 of the next LED display module through a horizontal power line, so as to realize the cascading of each LED display module in the horizontal direction.

[0038] In the embodiment of the present application, by setting a plurality of magnetic parts 20 on the flexible LED light board 10, and using the magnetic parts 20 to fix the LED display module on the metal bracket of the curved wall, the installation and disassembly of the LED display module can be simplified, and the maintenance of the LED display module is convenient. Since the first area and the second area are arranged at intervals in the vertical direction, the signal lines at both ends of the adapter plate 30 and the signal lines at both ends of the power board 40 will not overlap or squeeze each other, thereby avoiding signal interference between the lines and improving the display effect of the LED display module. In addition, by respectively setting the adapter plate 30 and the power board 40 in different areas, the thickness of the LED display module can be reduced, which is conducive to the lightweight design of the LED display module. Furthermore, since the signal lines at both ends of the adapter board 30 and the signal lines at both ends of the power board 40 are in the horizontal direction, the magnetic parts 20 are only distributed at intervals along the horizontal direction of the LED light board, and there are no magnetic parts 20 in the vertical direction of the LED light board. Therefore, when each LED display module is cascaded in the horizontal direction, the bulging phenomenon caused by the intersection of the signal line, the power line and the magnetic part 20 is avoided, thereby improving the flatness of the LED display module when cascading.

[0039] In one embodiment, see Figure 2 The first surface of the flexible LED light board 10 is provided with three rows of magnetic component groups spaced apart along the first direction. The magnetic component groups include a plurality of magnetic components 20 spaced apart along the second direction. Every two adjacent rows of magnetic component groups form an area, dividing the first surface of the flexible LED light board 10 into a first area and a second area.

[0040] In the embodiment of the present application, three rows of magnetic members 20 are arranged on the back of the flexible LED light board 10, and each row of magnetic members 20 includes a plurality of magnets arranged at intervals. Specifically, the first row of magnetic members 20 is located at the top of the back of the flexible LED light board 10, the second row of magnetic members 20 is located in the middle of the back of the flexible LED light board 10, and the third row of magnetic members 20 is located at the bottom of the back of the flexible LED light board 10. The three rows of magnetic members 20 divide the back of the flexible LED light board 10 into an upper area (first area) and a lower area (second area), an adapter board 30 is arranged in the upper area, and a power board 40 is arranged in the lower area.

[0041] The embodiment of the present application can effectively avoid signal interference caused by the signal line of the adapter board 30 and the power line of the power board 40 being entangled due to the natural drooping of gravity by the three rows of magnetic suction members 20. At the same time, the LED display module is adsorbed on the metal bracket by the three rows of magnetic suction members 20, and the adsorption force is more uniform, and no bulges or bulges will be generated during the bending process of the LED display module, thereby improving the flatness of the LED display module.

[0042] In one embodiment, the adapter board includes a first side surface and a second side surface that are arranged opposite to each other; a signal processing module and a first connector are arranged on the first side surface, the first connector is connected to the signal processing module, the signal processing module is connected to the flexible LED light board, and the second side surface is opposite to the first side of the flexible LED light board;

[0043] The signal lines at both ends of the adapter board are connected through a first PCB board, the first PCB board includes a second connector, and the signal line is electrically connected to the second connector; the second connector is plugged into the first connector, and the first control signal output by the controller of the LED display module is transmitted to the signal processing modules of each cascaded LED display module in sequence through the signal line, the second connector and the first connector.

[0044] Among them, the first side surface of the adapter plate is the front side of the adapter plate, the second side surface of the adapter plate is the back side of the adapter plate, and the back side of the adapter plate faces the back side of the LED light board.

[0045] The signal processing module integrates the basic circuits for lighting and communicating the LED display module, including but not limited to the processor, memory SDRAM, and PHY chip, etc. The signal processing module is used to process the first control signal output by the controller, obtain the second control signal, transmit the second control signal to each LED lamp bead, and control the display of each LED lamp bead.

[0046] The first PCB board is an integrated circuit board, and the first connector is plugged and matched with the second connector. Specifically, the first connector is a male socket, and the second connector is a female socket. Alternatively, the first connector is a female socket, and the second connector is a male socket.

[0047] The controller is used to convert external video input signals or onboard multimedia files into digital signals that are easily recognizable by the LED display, thereby lighting up the LED display device.

[0048] In the embodiments of this application, please refer to Figure 3 , an 18PIN male socket and a signal processing module (core card) are arranged on the front of the adapter board, the 18PIN male socket is electrically connected to the signal processing module through a wire, and the signal processing module is electrically connected to several LED lamp beads of the LED lamp board through a wire. The first PCB board includes an 18PIN female socket, and both ends of the 18PIN female socket are connected to an 8P network cable (signal line). The first control signal output by the controller of the LED display module reaches the signal processing module of the first LED display module via the 8P network cable, the 18PIN female socket and the 18PIN male socket. The first control signal output by the controller of the LED display module reaches the signal processing module of the second LED display module via the 8P network cable, the 18PIN female socket, the 8P network cable, the 18PIN female socket and the 18PIN male socket,.......

[0049] The embodiment of the present application can achieve a pluggable connection between the adapter board and the signal line by providing a second connector and a first connector, which is convenient for subsequent maintenance.

[0050] In one embodiment, see Figure 3 , a third connector is provided on the second side, and the third connector is electrically connected to the signal processing module; a fourth connector is provided on the second side of the flexible LED light board, and the fourth connector is electrically connected to a plurality of LED lamp beads;

[0051] The third connector is plugged into the fourth connector, and the second control signal output by the signal processing module according to the first control signal is transmitted to a plurality of LED lamp beads through the third connector and the fourth connector.

[0052] The third connector is plugged into and matched with the fourth connector. Specifically, the third connector is a male connector and the fourth connector is a female connector. Alternatively, the third connector is a female connector and the fourth connector is a male connector.

[0053] The third connector is electrically connected to the signal processing module through a wire, and the fourth connector is electrically connected to a plurality of LED lamp beads through a wire.

[0054] In an embodiment of the present application, a 40PIN male socket is provided on the back of the adapter board, and a 40PIN female socket is provided on the back of the flexible LED light board. The signal processing module outputs a second control signal according to the first control signal through the 40PIN male socket and the 40PIN female socket to reach several LED lamp beads, thereby controlling the display of the LED lamp beads.

[0055] The embodiment of the present application can achieve a pluggable connection between the adapter board and the flexible LED light board by setting a third connector and a fourth connector, which is convenient for subsequent maintenance.

[0056] In one embodiment, see Figure 3 The first PCB board also includes a micro touch switch, which is electrically connected to the second connector.

[0057] Among them, the micro touch switch is used for self-test lighting of the LED display module when it is offline. Specifically, by triggering the micro touch switch, the signal processing module of the adapter board can be controlled to output different control signals to the LED lamp beads, realizing the red screen test, blue screen test and white screen test of the LED display module.

[0058] In the embodiment of the present application, when a single LED display module is lit up for testing, the user can start the test mode by long pressing the micro touch switch. After starting the test mode, the red screen test, blue screen test, and white screen test of the single LED display module can be implemented by short pressing the micro touch switch.

[0059] By setting a micro touch switch, the LED display module can be self-tested and lit when it is offline, ensuring the normal operation of the LED display module.

[0060] In one embodiment, see Figure 4 The power board includes a third side surface and a fourth side surface that are arranged opposite to each other, a power supply circuit and a fifth connector are arranged on the third side surface, the fifth connector is electrically connected to the power supply circuit, the power supply circuit is electrically connected to the flexible LED light board, and the fourth side surface is opposite to the first side of the flexible LED light board;

[0061] The power lines at both ends of the power board are connected through the second PCB board, and the second PCB board includes a sixth plug-in connector;

[0062] The sixth connector is plugged into the fifth connector, and the first voltage signal output by the power adapter of the LED display module is transmitted to the power supply circuits of the cascaded LED display modules in sequence through the power line, the sixth connector and the fifth connector.

[0063] The third side of the power board is the front side of the power board, and the fourth side of the power board is the back side of the power board. The power supply circuit is used for voltage conversion, and transmits the converted voltage to the adapter board and the LED lamp beads.

[0064] The fifth connector is plugged into and matched with the sixth connector. Specifically, the fifth connector is a male connector and the sixth connector is a female connector. Alternatively, the fifth connector is a female connector and the sixth connector is a male connector.

[0065] Among them, the second PCB board is an integrated PCB board, the fifth connector is electrically connected to the power supply circuit through a wire, and the power supply circuit is electrically connected to a plurality of LED lamp beads of the flexible LED lamp board through a wire.

[0066] Among them, the power adapter is used to provide voltage to the LED display module and can be connected to the 220V mains power.

[0067] In the embodiment of the present application, a 4PIN male socket and a power supply circuit are provided on the front of the power board, the 4PIN male socket is electrically connected to the power supply circuit through a wire, and the power supply circuit is electrically connected to a plurality of LED lamp beads of the LED lamp board through a wire. The second PCB board includes a 4PIN female socket, and both ends of the 4PIN female socket are connected to a 2P power line. The first voltage signal output by the power adapter of the LED display module reaches the power supply circuit of the first LED display module via the 2P power line, the 4PIN female socket and the 4PIN male socket. The first voltage signal output by the power adapter of the LED display module reaches the power supply circuit of the second LED display module via the 2P power line, the 4PIN female socket, the 2P power line, the 4PIN female socket and the 2PIN male socket, ...

[0068] The embodiment of the present application can achieve a pluggable connection between the power board and the power cord by providing the fifth connector and the sixth connector, which is convenient for subsequent maintenance.

[0069] In one embodiment, see Figure 4 , a seventh connector is provided on the fourth side, and the seventh connector is electrically connected to the power supply circuit; an eighth connector is provided on the second side of the flexible LED lamp board, and the eighth connector is electrically connected to a plurality of LED lamp beads;

[0070] The seventh connector is plugged into the eighth connector, and the second voltage signal output by the power supply circuit according to the first voltage signal is transmitted to the plurality of LED lamp beads and the signal processing module of the adapter board through the seventh connector and the eighth connector.

[0071] The seventh connector is plugged into and matched with the eighth connector. Specifically, the seventh connector is a male pin, and the eighth connector is a female pin. Alternatively, the seventh connector is a female pin, and the sixth connector is a male pin.

[0072] Among them, the seventh connector is electrically connected to the power supply circuit through a wire, and the eighth connector is electrically connected to a plurality of LED lamp beads through a wire.

[0073] In the embodiment of the present application, a gold-plated PIN male pin is provided on the back of the power board, and a gold-plated PIN female socket is provided on the back of the flexible LED light board. The second voltage signal output by the power supply circuit according to the first voltage signal reaches a plurality of LED lamp beads through the gold-plated PIN male pin and the gold-plated PIN female socket to supply power to the LED lamp beads. The second voltage signal output by the power supply circuit according to the first voltage signal reaches the LED light board through the gold-plated PIN male pin and the gold-plated PIN female socket. Since the LED light board is electrically connected to the adapter board, the power supply circuit supplies power to the signal processing module of the adapter board.

[0074] Since the power supply circuit outputs a large current, a large amount of heat will be generated when the large current flows through the connector, causing temperature rise, thereby affecting the display effect of the LED display module. In the embodiment of the present application, a gold-plated PIN male pin and a gold-plated PIN female socket are provided, and the resistance of the gold-plated PIN male pin and the gold-plated PIN female socket is small, so that the heat generated by the large current flowing through the gold-plated PIN male pin and the gold-plated PIN female socket is small, which can effectively reduce the temperature rise and improve the display effect of the LED display module.

[0075] In one embodiment, the power supply circuit includes a first BUCK circuit and a second BUCK circuit;

[0076] The input end of the first BUCK circuit is connected to the power line, and the output end of the first BUCK circuit is connected to a plurality of LED lamp beads; the input end of the second BUCK circuit is connected to the power line, and the output end of the second BUCK circuit is connected to the signal processing module.

[0077] Among them, the BUCK circuit is a step-down conversion circuit used to convert the input voltage into a lower output voltage to meet the needs of different loads.

[0078] In the embodiment of the present application, the power supply circuit includes 5 BUCK circuits, which are divided into 4 first BUCK circuits and 1 second BUCK circuit. The 4 first BUCK circuits respectively power 2 red lamp beads and 2 blue-green lamp beads, and the 1 second BUCK circuit powers the signal processing module. Specifically, the 4 first BUCK circuits convert the 24V voltage in the power line into 2 2.8V and 2 3.6V, respectively. The 2 2.8V are used to power the 2 red lamp beads, and the 2 3.6V are used to power the 2 blue-green lamp beads. The 1 second BUCK circuit converts the 24V voltage in the power line into 5V to power the signal processing module.

[0079] The embodiment of the present application configures the power supply circuit to be a plurality of BUCK circuits, so that the total power required by the LED display module can be dispersed among the plurality of BUCK circuits, thereby reducing the power borne by each BUCK circuit, helping to reduce the size of each BUCK circuit, and further reducing the area of ​​the power board, thereby achieving a lightweight design of the flexible LED display module.

[0080] In one embodiment, the first BUCK circuit and the second BUCK circuit are covered with a heat sink.

[0081] In the embodiment of the present application, by covering the first BUCK circuit and the second BUCK circuit with a heat sink, the first BUCK circuit and the second BUCK circuit can be cooled, thereby reducing the temperature rise of the LED display module and improving the display effect of the LED display module.

[0082] In one embodiment, see Figure 5 The present application also provides an LED display screen, comprising a plurality of LED display modules 110 as described above and a driving circuit arranged in an array, the driving circuit comprising a controller 120 and a power adapter 130; the controller 120 comprises a plurality of signal output terminals, each of which is sequentially connected to a plurality of LED display modules in the same row through a signal line; the power adapter 130 comprises a plurality of power output terminals, each of which is sequentially connected to a plurality of LED display modules in the same row through a power line.

[0083] In the embodiment of the present application, the LED display screen is composed of multiple LED display modules, and the controller 120 can freely adjust the number of LED display modules carried by each signal line within the range allowed by the signal processing module. The controller 120 can carry data to multiple LED display modules in the same row through one signal line, and can also carry data to multiple LED display modules in two or more rows through one signal line.

[0084] Taking a 6*6 LED display screen as an example, cascade communication between LED display modules is allowed. 36 LED display modules can be loaded with display data by 3 signal lines. The controller 120 is connected to the entire screen of 36 LED display modules through 3 signal lines. The 36 LED display modules are numbered 1-1, 1-2, ..., 6-5, 6-6, respectively, wherein 1-1 to 2-6 are loaded with data by the first signal line; 3-1 to 4-6 are loaded with data by the second signal line; 5-1 to 6-6 are loaded with data by the third signal line; LED display modules in the same row are interconnected on both sides using signal lines.

[0085] Since the size of the LED display module and the selection of lamp beads will affect the total power consumption of a single LED display module at full load, therefore, in actual application, the appropriate power adapter 130 will be selected to load the entire screen according to the actual power consumption. If the number of LED display modules that a single power adapter 130 can carry is limited, the number of power adapters 130 can be increased.

[0086] The LED display screen provided in the embodiment of the present application includes the above-mentioned LED display module. Therefore, the LED display screen can be completely fitted with the metal bracket of the curved wall, has high flatness, good display effect, and is easy to install and disassemble, which is beneficial to subsequent maintenance.

[0087] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0088] The above are only embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included within the scope of the claims of the present application.

Claims

1. An LED display module, characterized in that: It includes a flexible LED light board, several magnetic parts, an adapter board and a power board; The first surface of the flexible LED light board is provided with at least one row of magnetic attraction component groups at intervals along a first direction, and the magnetic attraction component group includes a plurality of magnetic attraction components arranged at intervals along a second direction, and the first direction is perpendicular to the second direction; the flexible LED light board is fixed on the metal bracket of the curved wall by adsorption of a plurality of the magnetic attraction components; a second surface of the flexible LED light board opposite to the first surface is provided with a plurality of LED lamp beads; The plurality of magnetic elements divide the first surface of the flexible LED lamp board into at least a first area and a second area; the adapter board is arranged in the first area, the power board is arranged in the second area, the plurality of LED lamp beads and the adapter board are electrically connected to the power board; the plurality of LED lamp beads are signal-connected to the adapter board; Both ends of the adapter board are provided with signal lines for cascading with adapter boards of other LED display modules, and both ends of the power board are provided with power lines for cascading with power boards of other LED display modules; the directions of the signal lines and the power lines are consistent with the second direction.

2. The LED display module according to claim 1, characterized in that: The first surface of the flexible LED light board is provided with three rows of magnetic component groups spaced apart along the first direction, and the magnetic component groups include a plurality of magnetic components spaced apart along the second direction, and every two adjacent rows of the magnetic component groups form an area, dividing the first surface of the flexible LED light board into the first area and the second area.

3. The LED display module according to any one of claims 1 to 2, characterized in that: The adapter board includes a first side surface and a second side surface that are arranged opposite to each other; a signal processing module and a first connector are arranged on the first side surface, the first connector is connected to the signal processing module, the signal processing module is connected to the flexible LED light board, and the second side surface is opposite to the first surface of the flexible LED light board; The signal lines at both ends of the adapter board are connected through a first PCB board, the first PCB board includes a second connector, and the signal line is electrically connected to the second connector; the second connector is plugged into the first connector, and the first control signal output by the controller of the LED display module is transmitted to the signal processing modules of each cascaded LED display module in sequence through the signal line, the second connector and the first connector.

4. The LED display module according to claim 3, characterized in that: The second side surface is provided with a third connector, and the third connector is electrically connected to the signal processing module; the second surface of the flexible LED light board is provided with a fourth connector, and the fourth connector is electrically connected to a plurality of the LED lamp beads; The third connector is plugged into the fourth connector, and the second control signal output by the signal processing module according to the first control signal is transmitted to the plurality of LED lamp beads through the third connector and the fourth connector.

5. The LED display screen according to claim 3, characterized in that: The first PCB board also includes a micro touch switch, and the micro touch switch is electrically connected to the second connector.

6. The flexible LED display module according to any one of claims 1 to 2, characterized in that: The power board includes a third side surface and a fourth side surface that are arranged opposite to each other, a power supply circuit and a fifth plug connector are arranged on the third side surface, the fifth plug connector is electrically connected to the power supply circuit, the power supply circuit is electrically connected to the flexible LED light board, and the fourth side surface is directly opposite to the first surface of the flexible LED light board; The power lines at both ends of the power board are connected through a second PCB board, and the second PCB board includes a sixth plug-in connector; The sixth connector is plugged into the fifth connector, and the first voltage signal output by the power adapter of the LED display module is transmitted to the power supply circuits of the cascaded LED display modules in sequence through the power line, the sixth connector and the fifth connector.

7. The flexible LED display module according to claim 6, characterized in that: The fourth side surface is provided with a seventh connector, and the seventh connector is electrically connected to the power supply circuit; the second surface of the flexible LED lamp board is provided with an eighth connector, and the eighth connector is electrically connected to a plurality of the LED lamp beads; The seventh connector is plugged into the eighth connector, and the second voltage signal output by the power supply circuit according to the first voltage signal is transmitted to the plurality of LED lamp beads and the signal processing module of the adapter board through the seventh connector and the eighth connector.

8. The flexible LED display module according to claim 6, characterized in that: The power supply circuit includes a first BUCK circuit and a second BUCK circuit; The input end of the first BUCK circuit is connected to the power line, and the output end of the first BUCK circuit is connected to a plurality of the LED lamp beads; the input end of the second BUCK circuit is connected to the power line, and the output end of the second BUCK circuit is connected to the signal processing module.

9. The flexible LED display module according to claim 8, characterized in that: The first BUCK circuit and the second BUCK circuit are covered with a heat sink.

10. An LED display screen, comprising a plurality of LED display modules as described in any one of claims 1 to 9 and a driving circuit arranged in an array, the driving circuit comprising a controller and a power adapter; the controller comprising a plurality of signal output terminals, each of which is sequentially connected to a plurality of the LED display modules in the same row through a signal line; the power adapter comprising a plurality of power output terminals, each of which is sequentially connected to a plurality of the LED display modules in the same row through a power line.

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