LED cabinet modules and LED displays

Abstract

This application relates to an LED cabinet module and an LED display screen. The LED cabinet module includes a first cabinet and a second cabinet. The first cabinet has a first circuit board. The first circuit board integrates a main chip, which is configured to process display data of the first cabinet and the second cabinet, and output drive signals to the LED boards of the first cabinet and the second cabinet. By using only one main chip, the number of main chips and their peripheral circuits can be significantly reduced. As a result, the electromagnetic radiation generated by the LED cabinet module under the same area conditions is smaller than that of conventional structures. This helps to avoid interference with the signal transmission of the LED display system itself, enhances signal integrity, and also reduces the possibility of electromagnetic interference to surrounding electronic devices, which is beneficial to ensuring the normal operation of adjacent systems.

Description

Technical Field

[0001] This application relates to the field of LED display technology, and in particular to an LED cabinet module and an LED display screen. Background Technology

[0002] LED display technology is widely used in advertising, stage performances, information dissemination, and other fields. With the improvement of display accuracy and splicing size, modular LED display cabinets are gradually becoming the mainstream. An LED display cabinet typically includes multiple lamp panel modules, which communicate with the control components through signal interfaces to achieve unified control and image display.

[0003] In some applications, the LED display cabinet adopts a control architecture centered on a signal adapter board (also known as a HUB board). This signal adapter board has multiple connection interfaces, which can be electrically connected to multiple LED panels. This structure enables centralized management of multiple LED panels, improving the convenience of modular splicing and the stability of signal transmission.

[0004] However, existing LED display cabinets tend to generate strong electromagnetic radiation during use. This electromagnetic radiation may interfere with the signal transmission of the LED display system itself, affecting signal integrity. It may also cause electromagnetic interference to surrounding electronic equipment, thus adversely affecting the normal operation of adjacent systems. Utility Model Content

[0005] This application provides an LED cabinet module and an LED display screen, which reduce the electromagnetic radiation of the LED cabinet during use, thereby at least partially solving the above-mentioned technical problems.

[0006] To achieve the above objectives, according to a first aspect of this application, an LED enclosure module is provided, comprising:

[0007] A first enclosure, comprising a first circuit board; and

[0008] Second box;

[0009] The first circuit board integrates a main chip, which is configured to process the display data of the first cabinet and the second cabinet, and output drive signals to the LED light boards of the first cabinet and the second cabinet.

[0010] In some embodiments, the main chip is configured to generate a first control signal to drive the LED light board of the first enclosure, and simultaneously generate a second control signal to drive the LED light board of the second enclosure, and transmit the second control signal to the second enclosure.

[0011] In some embodiments, the first circuit board includes a first signal amplification module, which is used to amplify the first control signal and / or the second control signal.

[0012] In some embodiments, the second housing has a second circuit board, the second circuit board including a second signal amplification module, the second signal amplification module being used to amplify the second control signal.

[0013] In some embodiments, the first circuit board includes a first output port group and a second output port group, wherein the first output port group is used to output the first control signal to the LED light board of the first housing, and the second output port group is used to output a second control signal.

[0014] The second enclosure has a second circuit board, which includes a first input port group and a third output port group. The first input port group is used to receive the second control signal, and the third output port group is used to output the second control signal to the LED light board of the second enclosure.

[0015] In some embodiments, the first output port group is connected to the first signal amplification module of the first circuit board to amplify the first control signal;

[0016] And / or, the second output port group is connected to the first signal amplification module of the first circuit board to amplify the second control signal;

[0017] And / or, the first input port group is connected to the second signal amplification module of the second circuit board to amplify the second control signal.

[0018] In some embodiments, the second output port group is connected to the first input port group via a signal line.

[0019] In some embodiments, the first circuit board further includes a second input port group for receiving input signals from the outside.

[0020] In some embodiments, the dimensions of the first housing are the same as the dimensions of the second housing;

[0021] And / or, the second housing has a second circuit board, the size of which is larger than that of the first circuit board.

[0022] According to a second aspect of this application, an LED display screen is provided, including the LED cabinet module described in the above technical solution.

[0023] In the LED cabinet module of this application embodiment, the main chip is integrated only in the first cabinet. This main chip processes the display data of the first and second cabinets and outputs the drive signals to the LED boards of the first and second cabinets respectively. By using only one main chip, the number of main chips and their peripheral circuits can be significantly reduced. As a result, the electromagnetic radiation generated by the LED cabinet module under the same area conditions is smaller than that of conventional structures. This helps to avoid interference with the signal transmission of the LED display system itself, enhances signal integrity, and also reduces the possibility of electromagnetic interference to surrounding electronic equipment, which is beneficial to ensuring the normal operation of adjacent systems.

[0024] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0027] Figure 1 This is a schematic diagram of the signal flow between the modules of the LED cabinet module provided in the exemplary embodiment of this disclosure.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. First circuit board; 2. Main chip; 3. Second circuit board; 4. LED light board of the first enclosure; 5. LED light board of the second enclosure. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0031] According to the first aspect of this application, referring to Figure 1This disclosure provides an LED cabinet module, including a first cabinet and a second cabinet. The first cabinet has a first circuit board 1, and the second cabinet has a second circuit board 3. A main chip 2 is integrated on the first circuit board 1, while the main chip 2 is not disposed on the second circuit board 3. The main chip 2 is configured to process display data from the first and second cabinets and output drive signals to the LED light board 4 of the first cabinet and the LED light board 5 of the second cabinet.

[0032] It is understandable that when implementing display control of multiple LED panels, it is usually necessary to input the corresponding display signals to each cabinet separately, and each cabinet's main control chip independently processes the received signals to drive its own LED panels. However, in this embodiment, the first cabinet undertakes the unified signal reception and processing function, that is, the display data required by the first and second cabinets are input together to the first circuit board 1, where the main chip 2 completes centralized processing. After completing data parsing, the main chip 2 generates corresponding control signals, part of which is used to drive the LED panels in the first cabinet, and the other part is output as control signals to the second circuit board 3 to control the LED panels 5 in the second cabinet.

[0033] The above structural design reduces the number of main chips 2 and their peripheral circuits, thus lowering overall hardware complexity. Furthermore, since the second housing no longer integrates the main chip 2, compared to traditional structures, the entire LED housing module can have a more compact layout within the same volume or area. This helps mitigate the superposition effect of electromagnetic interference sources caused by multiple main chips 2 operating simultaneously, thereby improving the signal integrity of the display system and reducing the risk of interference to surrounding electronic devices.

[0034] In some embodiments, there can be multiple second cabinets. Specifically, the main chip 2 inside the first cabinet is configured to process the display data of multiple second cabinets and uniformly generate control signals for driving each cabinet. After receiving the input signal, the main chip 2 parses and schedules the overall display content, generates corresponding second control signals according to the display requirements of different second cabinets, and outputs them to the circuit boards of each second cabinet to drive its corresponding LED light board.

[0035] The aforementioned structural design enables centralized control of multiple cabinets using a single main control chip. This reduces the number of main control chips and their peripheral circuitry, thereby lowering overall electromagnetic radiation levels and optimizing the system's electromagnetic compatibility. Furthermore, this structure simplifies circuit design, facilitates modular integration and signal synchronization control, and offers good scalability and engineering adaptability for building large-area display systems.

[0036] In some specific designs, multiple second enclosures can be arranged on one side of the first enclosure or around its perimeter. The main chip 2 can establish connections with multiple second circuit boards 3 through multiple sets of output interfaces. To ensure the reliability of signal transmission, each connection path can be independently equipped with a signal amplification module or an anti-interference structure to enhance signal quality under long-distance transmission.

[0037] In some embodiments, the main chip 2 is configured to generate a first control signal to drive the LED light board 4 of the first enclosure, and simultaneously generate a second control signal to drive the LED light board 5 of the second enclosure, and transmit the second control signal to the second enclosure. After processing the display data, the main chip 2 transmits the first control signal to the output port on the first circuit board 1 through the output channel to drive the LED light board 4 of the first enclosure; at the same time, it transmits the second control signal to the second circuit board 3 of the second enclosure through the second output channel to control the LED light board in the second enclosure.

[0038] The above configuration enables the main chip 2 within the first cabinet to handle the drive and control tasks for multiple cabinets, simplifying the system architecture and avoiding problems such as complex control logic and difficulty in ensuring synchronization caused by the coexistence of multiple main control chips. Simultaneously, having a single main chip 2 output control signals helps reduce display delays or deviations that may be caused by inconsistent signal sources, improving synchronization performance and image consistency during multi-cabinet collaborative display.

[0039] In practical applications, in order to ensure the signal strength and integrity of the second control signal during transmission, the first circuit board 1 and the second circuit board 3 can be connected by a signal line, and a signal amplification module is set at the output or input end to amplify the second control signal to enhance the signal stability under long-distance or multi-path transmission.

[0040] In some embodiments, the first circuit board 1 includes a first signal amplification module, which amplifies the first control signal and / or the second control signal. Specifically, after generating the control signal, the main chip 2 can first transmit the control signal to the first signal amplification module, which adjusts the signal gain to enhance the signal's driving capability and anti-interference capability.

[0041] When the first control signal is used to directly drive the LED light board 4 in the first cabinet, the amplified signal helps improve the stability and consistency of the light board's response. When the second control signal needs to be transmitted to the second cabinet through a connecting line, the signal amplification process helps to compensate for signal attenuation during transmission to a certain extent, which is beneficial to ensuring the integrity of the control signal received by the second cabinet and improving the overall display stability and synchronization effect of the system.

[0042] In some specific implementations, the first signal amplification module can be a separate chip structure or it can be implemented by the integrated functional module of the main chip 2.

[0043] In some embodiments, the second enclosure includes a second circuit board 3, which includes a second signal amplification module for amplifying the second control signal. Specifically, after the second control signal is generated by the main chip 2 in the first enclosure, it is transmitted to the second circuit board 3 via a signal line. To improve the anti-interference capability and driving capability of the signal during transmission, the second circuit board 3 amplifies the received second control signal to give it sufficient amplitude to drive the LED light board 5 of the second enclosure.

[0044] By setting a second signal amplification module on the second circuit board 3, the impact on the integrity of control signals in long-distance transmission or complex wiring environments can be reduced to a certain extent, which is beneficial to improving the response performance and display consistency of the second cabinet LED display unit. This structure can also be flexibly configured according to the wiring length and environmental interference level of different systems, and has good adaptability and engineering application value.

[0045] In practical applications, the second signal amplification module can be implemented using different types of devices such as analog gain amplifiers, differential signal amplifiers, or digital driver chips.

[0046] In some embodiments, the first circuit board 1 includes a first output port group and a second output port group. The first output port group is used to output a first control signal to the LED light board 4 of the first housing, and the second output port group is used to output a second control signal. The second housing has a second circuit board 3, which includes a first input port group and a third output port group. The first input port group is used to receive the second control signal, and the third output port group is used to output the second control signal to the LED light board 5 of the second housing.

[0047] The aforementioned port grouping configuration allows for independent management of different control signals, simplifying signal wiring, enhancing functional division between modules, and facilitating the construction of standardized connection interfaces between different enclosures. Furthermore, the port grouping design provides greater flexibility and maintainability when expanding the number of second enclosures or adjusting the layout, thereby improving the overall system's engineering adaptability and display consistency.

[0048] In some embodiments, the first output port group is connected to the first signal amplification module of the first circuit board 1 to amplify the first control signal. Specifically, after processing the display data, the main chip 2 generates a first control signal to drive the LED light board inside the first enclosure. After being output from the main chip 2, this signal is first transmitted to the first signal amplification module, where level gain adjustment or driving capability enhancement processing is performed. Subsequently, it is output to the LED light board through the first output port group to drive the light board to achieve the corresponding image display.

[0049] The purpose of setting up the first signal amplification module is to compensate for potential losses in the output signal of the main chip 2 during wiring or interface connections, and to enhance the driving capability of the signal so as to more stably act on the control input terminal of the LED light board. In some structural layouts, due to circuit board size limitations or different connection lengths, the control signal directly output by the main chip 2 may experience amplitude attenuation or interference superposition during transmission, which may affect the lighting effect or refresh stability of the light board. By setting up a signal amplification module in the first output path, the above problems can be alleviated to a certain extent, which is beneficial to improving the response sensitivity and brightness consistency of the LED display unit in the first cabinet.

[0050] In this embodiment, the "first output port group" can be understood as a group of output interfaces disposed on the first circuit board 1. The number and type of these interfaces can be flexibly configured according to specific application requirements. For example, they may include multiple pin header connectors, FPC flexible ports, or high-speed sockets, etc., used to reliably transmit the amplified first control signal to the LED light board. Correspondingly, the "first signal amplification module" can be an operational amplifier, a buffer driver, or a custom signal conditioning chip. This embodiment does not limit the specific form of the first signal amplification module.

[0051] In some embodiments, the second output port group is connected to the first signal amplification module of the first circuit board 1 to amplify the second control signal. Specifically, after processing the display data, the main chip 2 on the first circuit board 1 generates a first control signal for driving the first enclosure and simultaneously generates a second control signal for driving the second enclosure. Since the second control signal needs to be transmitted over a certain distance to the circuit board of the second enclosure, if it is output directly, the signal amplitude may decrease or the waveform may be distorted due to resistance, capacitive load or external interference in the transmission path.

[0052] To enhance the transmission quality and improve the anti-interference capability of the second control signal, a first signal amplification module is introduced to amplify its gain or enhance its drive before the control signal is output to the second enclosure. The processed signal is then transmitted to the second enclosure through the second output port group for subsequent driving of its LED light panel display operation.

[0053] The amplification path setting helps improve the stability of long-distance or cross-cabinet signal transmission, reduces the signal integrity degradation caused by impedance mismatch between connecting cables, connectors, or boards, and thus improves the system's resistance to external electromagnetic interference to a certain extent, ensuring that the second cabinet can reliably receive control signals from the main chip 2 in actual operation.

[0054] In this embodiment, the "second output port group" can be understood as a group of physical interfaces used to output the second control signal. Its structure can be a high-speed signal pin header, an FPC connector, or other standard ports suitable for inter-cabinet connections. The "first signal amplification module" can be a signal driver chip or a buffer amplification module that supports multi-channel output, and is electrically connected to the output terminal of the main chip 2 through a signal line or wiring layer.

[0055] In some embodiments, the first input port group is connected to the second signal amplification module of the second circuit board 3 to amplify the second control signal. Specifically, after the second control signal is transmitted to the first input port group of the second circuit board 3 via signal lines, it first enters the second signal amplification module, which boosts the signal gain or enhances its driving capability to compensate for attenuation and interference during signal transmission.

[0056] By amplifying the second control signal, the stability and integrity of the signal can be improved to a certain extent, which helps ensure that the LED board inside the second cabinet receives an accurate and reliable driving signal, thereby improving the response speed and consistency of the display effect. This structural configuration is particularly beneficial for signal recovery in long-distance transmission or complex wiring environments.

[0057] In this embodiment, the "first input port group" can be understood as a set of standard signal interfaces on the second circuit board 3. Its form may include pins, sockets, flexible connectors, etc., to facilitate physical connection with the second output port group of the first circuit board 1. The "second signal amplification module" may be an operational amplifier, a buffer driver or an integrated signal conditioning chip. This embodiment does not limit the specific form of the second signal amplification module.

[0058] In some embodiments, the second output port group is connected to the first input port group via a signal line. For example, this signal line can be an 80-pin connector. Compared to traditional network cable connections, using a multi-pin signal line provides more signal channels and higher data transmission bandwidth, which is beneficial for achieving high-speed and stable control signal transmission.

[0059] Furthermore, multi-pin signal cables typically offer superior shielding and lower transmission delay, which helps reduce signal crosstalk and electromagnetic interference, thereby improving the integrity and reliability of the second control signal during transmission. This connection method is suitable for large-area LED display systems with multiple cabinets, helping to ensure synchronized display effects between cabinets and overall system stability.

[0060] The 80-pin signal cable can use a pin header and female header connection structure, which is convenient for disassembly and maintenance, and is also suitable for modular design requirements.

[0061] In some embodiments, the first circuit board 1 further includes a second input port group for receiving input signals from the outside. Specifically, the second input port group may be disposed on one side or edge of the first circuit board 1 and configured to establish a communication connection with external control systems, signal sources, or main controllers, thereby introducing image data, control commands, or other required information into the LED cabinet module.

[0062] In practical applications, the input signal may include video display data, brightness adjustment parameters, synchronization control signals, or status feedback commands. After receiving these signals, the second input port group transmits them to the main chip 2 for unified processing. The main chip 2 generates corresponding first and second control signals, which are used to drive the LED light boards 5 of the first and second housings, respectively.

[0063] By setting up a second input port group, an effective interface connection between the system and external signal sources can be achieved, enabling this LED cabinet module to adapt to different control platforms or signal protocols, which is beneficial for system integration compatibility. At the same time, this structural design also facilitates flexible adaptation to different types of input signals without modifying the main control chip, thereby enhancing the expandability and engineering adaptability of the cabinet module.

[0064] In a specific design, the second input port group can adopt HDMI, DVI, LVDS, TTL, or a custom communication interface. The selection and layout of the second input port group in this embodiment does not constitute a limitation on this embodiment and can be reasonably set according to the specific requirements of the overall system architecture and communication speed.

[0065] In some embodiments, the dimensions of the first enclosure are the same as those of the second enclosure. Maintaining consistency in the dimensions and structure of the two enclosures facilitates standardized design during modular assembly, promotes mass production and structural alignment, thereby improving the overall system assembly efficiency and installation consistency. This structural arrangement also simplifies subsequent wiring planning and mechanical fixing methods to some extent, reducing the complexity of system integration.

[0066] In some embodiments, the first housing and the second housing are detachably connected. Specifically, the first housing and the second housing are mechanically connected by a connecting post, and the connecting post is provided with a connecting line for signal transmission to establish a communication path between the first housing and the second housing.

[0067] For example, the two ends of the connecting post are respectively provided with detachable plug-in structures corresponding to the mounting surfaces of the first and second housings. These plug-in structures can be snap-fit ​​structures, screw-fit structures, or plug-in ports with guide and positioning functions, for enabling quick assembly and disassembly. Furthermore, electrical connection connectors, such as male and female connectors, spring structures, or electrical contact modules, are provided within the plug-in structures to enable electrical signal transmission between the first circuit board 1 and the second circuit board 3.

[0068] By placing electrical connection cables inside the connecting posts, the amount of exposed wiring can be reduced to some extent, improving the overall compactness and aesthetics of the structure, and helping to reduce the risk of poor contact caused by external forces. Furthermore, the connecting posts serve the dual function of structural fixation and signal transmission, which helps improve the integration of the modular splicing system and facilitates later disassembly, replacement, and maintenance.

[0069] In some embodiments, the second enclosure has a second circuit board 3, and the size of the first circuit board 1 is larger than the size of the second circuit board 3. Specifically, the first circuit board 1 integrates the main chip 2 and various functional circuits related to the main control, and its functions are relatively concentrated and complex. Therefore, it may require more onboard space to meet design requirements such as wiring, heat dissipation and isolation between modules.

[0070] In contrast, the second circuit board 3 is mainly used to receive the second control signal output by the first circuit board 1 and transmit it to the LED light board 5 of the second enclosure. The required circuit is relatively simple, and the function is focused on signal distribution and driving. Therefore, a smaller circuit board can be used in the structure, thereby reducing the internal space occupied by the second enclosure to a certain extent and helping to optimize the overall compactness of the enclosure layout.

[0071] By setting the above-mentioned size differences, it is beneficial to achieve control functions while taking into account the compactness of the system structure and electromagnetic compatibility, making it suitable for applications in scenarios with limited space or high requirements for assembly efficiency.

[0072] According to a second aspect of this disclosure, an LED display screen is provided, including the LED cabinet module described in the above embodiments. This LED display screen possesses all the beneficial effects of the aforementioned LED cabinet module, which will not be elaborated upon further herein.

[0073] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0074] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0075] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0076] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. An LED cabinet module, characterized in that, include: The first enclosure has a first circuit board (1); and Second box; The first circuit board (1) integrates a main chip (2), which is configured to process the display data of the first cabinet and the second cabinet, and output drive signals to the LED light board (4) of the first cabinet and the LED light board (5) of the second cabinet.

2. The LED housing module according to claim 1, characterized in that, The main chip (2) is configured to generate a first control signal to drive the LED light board (4) of the first housing, and simultaneously generate a second control signal to drive the LED light board (5) of the second housing, and transmit the second control signal to the second housing.

3. The LED housing module according to claim 2, characterized in that, The first circuit board (1) includes a first signal amplification module, which is used to amplify the first control signal and / or the second control signal.

4. The LED housing module according to claim 2, characterized in that, The second housing has a second circuit board (3), which includes a second signal amplification module for amplifying the second control signal.

5. The LED housing module according to claim 2, characterized in that, The first circuit board (1) includes a first output port group and a second output port group. The first output port group is used to output the first control signal to the LED light board (4) of the first housing, and the second output port group is used to output the second control signal. The second enclosure has a second circuit board (3), which includes a first input port group and a third output port group. The first input port group is used to receive the second control signal, and the third output port group is used to output the second control signal to the LED light board (5) of the second enclosure.

6. The LED housing module according to claim 5, characterized in that, The first output port group is connected to the first signal amplification module of the first circuit board (1) to amplify the first control signal; And / or, the second output port group is connected to the first signal amplification module of the first circuit board (1) to amplify the second control signal; And / or, the first input port group is connected to the second signal amplification module of the second circuit board (3) to amplify the second control signal.

7. The LED housing module according to claim 5, characterized in that, The second output port group is connected to the first input port group via signal lines.

8. The LED cabinet module according to any one of claims 1 to 7, characterized in that, The first circuit board (1) further includes a second input port group for receiving input signals from the outside.

9. The LED enclosure module according to any one of claims 1 to 7, characterized in that, The dimensions of the first box are the same as the dimensions of the second box; And / or, the second housing has a second circuit board (3), the size of the first circuit board (1) being larger than the size of the second circuit board (3).

10. An LED display screen, characterized in that, Includes the LED housing module as described in any one of claims 1 to 9.

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