LED multi-face display control circuit, mainboard and device

Abstract

The utility model discloses a kind of LED multi-face display control circuit, mainboard and device, control circuit is used to connect LED display panel and external control equipment, LED display panel includes the multiple groups of LED array being set on LED display panel, multiple groups of LED array are respectively set on the multiple surfaces of LED display panel.Circuit includes signal access module, signal distribution module and connection interface module.Signal access module connects external control equipment, for receiving and parsing control signal to generate input signal.Signal distribution module is connected for generating and synchronously outputting multiple groups of display signals based on input signal, and each group of display signal corresponds a group of LED array.Connection interface module is used to adjust and transmit each group of display signal to make each group of display signal and each group of LED array adaptation.Wherein, each group of display signal is respectively used to drive corresponding each group of LED array to emit light.The utility model can realize the multi-face display of identification sign, solve the problem that information display is limited, improve information transmission efficiency and space utilization.

Description

Technical Field

[0001] This utility model relates to the field of signage display control technology, and in particular to an LED multi-faceted display control circuit, motherboard and device. Background Technology

[0002] In existing technologies, the display control motherboard of signs (such as billboards, signs, traffic signs, etc.) usually adopts a single-sided display design, that is, it provides visible information only in one direction, and the field of view for displaying sign information is limited.

[0003] For multi-faceted displays, traditional solutions require the installation of multiple LED display control motherboards. These motherboards need to be connected to power supplies and control signals, leading to increased overall power consumption, significant space requirements, and higher installation and maintenance costs. Furthermore, housing multiple display control motherboards within a single signage device can easily result in uneven heat dissipation. Utility Model Content

[0004] The purpose of this utility model is to provide an LED multi-faceted display control circuit, motherboard and device, which can realize multi-faceted display of signs and labels, broaden the information display field, and improve information transmission efficiency and space utilization.

[0005] To achieve the above objectives, this utility model provides an LED multi-faceted display control circuit for connecting an LED display panel and an external control device. The LED display panel includes multiple LED arrays disposed on the LED display panel, with each of the multiple LED arrays respectively disposed on multiple surfaces of the LED display panel. The circuit includes:

[0006] A signal access module, connected to the external control device, is used to receive and parse the control signals from the external control device to generate input signals;

[0007] A signal distribution module, connected to the signal access module, is used to generate and synchronously output multiple sets of display signals based on the input signals, each set of display signals corresponding to a set of LED arrays;

[0008] A connection interface module connects the signal distribution module and the LED display panel, and is used to adjust and transmit each group of display signals so that each group of display signals is adapted to each group of LED arrays;

[0009] The display signals in each group are used to drive the corresponding LED arrays to emit light.

[0010] Furthermore, the LED multi-faceted display control circuit also includes a power adapter module, which is used to connect to a power supply and convert the input voltage of the power supply to supply power to the signal access module, the signal distribution module, the connection interface module and the LED display panel respectively.

[0011] Furthermore, the power adapter module includes an input conversion circuit and a distribution output circuit. The input conversion circuit is used to convert the power supply voltage, and the distribution output circuit is used to distribute the output voltage of the input conversion circuit to the signal access module, the signal distribution module, the connection interface module, and the LED display panel.

[0012] Furthermore, the power adapter module also includes a protection monitoring circuit, which is connected to the distribution output circuit and is used to monitor the power supply and cut off the input of the power supply when the power supply is abnormal.

[0013] Furthermore, the signal access module includes an input interface circuit and a decoding chip. The input interface circuit is used to connect to the external control device and transmit the received control signal to the decoding chip. The decoding chip is used to parse and convert the control signal to generate the input signal.

[0014] Furthermore, the signal distribution module includes a signal buffer, a logic distribution circuit, and a drive enhancement circuit;

[0015] The signal buffer is connected to the signal access module and is used to buffer the input signal;

[0016] The logic distribution circuit is connected to the signal buffer and is used to output the input signal as each group of display signals.

[0017] The drive enhancement circuit is connected to the logic allocation circuit and is used to enhance the display signals of each group.

[0018] Furthermore, the connection interface module includes a signal adaptation circuit and a connection interface circuit;

[0019] The signal adaptation circuit is connected to the signal distribution module and is used to perform pin definition specifications and electrical characteristic matching for each group of display signals.

[0020] The connection interface circuit connects the signal adapter circuit to the LED display panel.

[0021] Furthermore, the connection input interface circuit is a floating connector.

[0022] To achieve the above objectives, this utility model also provides an LED multi-faceted display control motherboard, including an LED display panel and the LED multi-faceted display control circuit as described above, wherein the LED multi-faceted display control circuit is integrated on the LED display panel.

[0023] To achieve the above objectives, this utility model also provides an LED multi-faceted display device, including a receiving board and an LED multi-faceted display control motherboard as described above, wherein the receiving board is disposed on the LED multi-faceted display control motherboard.

[0024] In this invention, the LED multi-faceted display control circuit connects to external devices and the LED display panel. It receives and parses control signals through a signal access module to generate input signals, and then uses a signal distribution module to generate multiple sets of display signals corresponding to multiple LED arrays on multiple surfaces of the LED display panel. These signals are transmitted to the LED display panel via a connection interface module to drive the display of the multiple LED arrays. This invention enables multi-faceted display of signs and signage, solving the problem of limited information display on signs and signage, and improving information transmission efficiency and space utilization. Furthermore, by integrating the LED multi-faceted display control circuit into the control motherboard, the system's integration level is further improved. Using a single control motherboard for multi-faceted display eliminates the need for separate power supplies, reducing power consumption and solving the problem of heat dissipation issues associated with multiple display motherboards. Attached Figure Description

[0025] Figure 1 This is a schematic block diagram of the LED multi-faceted display control circuit in an embodiment of this utility model.

[0026] Figure 2 This is a schematic block diagram of the signal access module in an embodiment of this utility model.

[0027] Figure 3 This is a schematic block diagram of the signal distribution module in an embodiment of this utility model.

[0028] Figure 4 This is a schematic block diagram of the connection interface module in an embodiment of this utility model.

[0029] Figure 5 This is a schematic block diagram of the power adapter module in an embodiment of this utility model.

[0030] Figure 6 This is a schematic diagram of the structure of the LED multi-faceted display control motherboard in an embodiment of this utility model. Detailed Implementation

[0031] To explain in detail the technical content, structural features, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0032] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0033] It should be noted that when an element is said to be "fixed" to another element, it can be directly on the other element or there may be an intervening element. When an element is said to be "connected" to another element, it can be directly connected to the other element or there may be an intervening element. Conversely, when an element is said to be "directly" on another element, there is no intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0034] Please see Figures 1 to 5 This utility model discloses an LED multi-faceted display control circuit 1, used to connect an LED display panel 2 and an external control device 3. The LED display panel 2 includes multiple LED arrays disposed on multiple surfaces of the LED display panel 2. The circuit includes a signal input module 10, a signal distribution module 20, and a connection interface module 30. The signal input module 10 is connected to the external control device 3 and is used to receive and parse the control signals from the external control device 3 to generate input signals. The signal distribution module 20 is connected to the signal input module 10 and is used to generate and synchronously output multiple sets of display signals based on the input signals, with each set of display signals corresponding to one set of LED arrays. The connection interface module 30 is connected to the signal distribution module 20 and the LED display panel 2 and is used to adjust and transmit each set of display signals to adapt each set of display signals to each set of LED arrays. Each set of display signals is used to drive the corresponding set of LED arrays to emit light.

[0035] Specifically, the external control device 3 is a receiving board.

[0036] In some embodiments, the LED multi-faceted display control circuit 1 further includes a power adapter module 40, which is used to connect to the power supply 4 and convert the input voltage of the power supply to power the signal access module 10, the signal distribution module 20, the connection interface module 30, and the LED display panel 2 respectively. By setting the power adapter module 40 to have multiple voltage outputs, the specific voltage requirements of different components are met, improving the power supply efficiency and equipment compatibility.

[0037] In a specific example, the power supply can be a 9-24V DC power supply.

[0038] Specifically, the power adapter module 40 includes an input conversion circuit 41 and a distribution output circuit 42. The input conversion circuit 41 is used to convert the power supply voltage (e.g., converting the input power supply voltage to 3.3V and 5V). The distribution output circuit 42 is used to distribute the output voltage of the input conversion circuit 41 to the signal access module 10, the signal distribution module 20, the connection interface module 30, and the LED display panel 2. By converting and distributing the power supply voltage through the power adapter module 40, it is beneficial to ensure that each circuit module can obtain a stable and reliable power supply, providing a solid power foundation for the normal operation of the entire display control motherboard.

[0039] Specifically, the power adapter module 40 also includes a protection monitoring circuit 43, which is connected to the distribution output circuit 42 and is used to monitor the power supply 4 and cut off the input of the power supply 4 when the power supply 4 is abnormal.

[0040] In a specific example, the protection monitoring circuit 43 uses sensors to sample the current and voltage of the circuit. When abnormal conditions such as overcurrent (current exceeding a set threshold, which may damage circuit components), overvoltage (voltage too high, which may break down components), or undervoltage (voltage too low, causing the device to malfunction) are detected, the protection monitoring circuit 43 will quickly cut off the power supply to prevent damage to the display device and ensure the safety and stability of the display system.

[0041] In some embodiments, the signal access module 10 includes an input interface circuit 11 and a decoding chip 12. The input interface circuit 11 is used to connect to an external control device 3 and transmit the received control signal to the decoding chip 12. The decoding chip 12 is used to parse and convert the control signal to generate an input signal.

[0042] Specifically, the input interface circuit 11 uses a 120-pin interface circuit as the connection port to the receiving board to receive video and control signals from the receiving board. These signals are transmitted to the LED display panel 2 through the 120-pin interface in a specific electrical signal form (such as differential signals). This interface design ensures the stability and high speed of signal transmission and solves the signal attenuation and interference problems that are prone to occur when traditional interfaces transmit large amounts of data.

[0043] Specifically, the decoding chip 12 performs preliminary decoding on the signal, identifies information such as video data and control commands in the signal, and converts it from the original signal format into a parallel data format that can be processed internally by the LED display panel 2. For example, it converts network protocol-based video signals into digital signals suitable for processing by internal logic circuits, enabling subsequent signal processing to proceed smoothly.

[0044] In some embodiments, the signal distribution module 20 includes a signal buffer 21, a logic distribution circuit 22, and a drive enhancement circuit 23. The signal buffer 21 is connected to the signal access module 10 and is used to buffer the input signal. The logic distribution circuit 22 is connected to the signal buffer 21 and is used to output the input signal as each group of display signals. The drive enhancement circuit 23 is connected to the logic distribution circuit 22 and is used to enhance each group of display signals.

[0045] Specifically, the signal buffer 21 is connected to the output terminal of the decoding chip 12.

[0046] In a specific example, signal buffer 21 can be implemented using a tri-state buffer. However, this invention does not impose any limitations on this.

[0047] In a specific example, the logic distribution circuit 22 can be implemented using a multiplexer or an FPGA to output each display signal. Of course, this invention does not limit this.

[0048] In a specific example, the drive enhancement circuit 23 can be implemented using a power switching transistor. Of course, this invention does not limit this.

[0049] By setting a signal buffer 21 in the signal distribution module 20, it is beneficial to avoid signal loss or corruption caused by mismatch in signal transmission speed during signal distribution, thus providing a stable signal source for subsequent accurate distribution. Since the signal will attenuate to a certain extent during transmission, the driving circuit can increase the voltage and current intensity of the signal, ensuring that the signal can be reliably transmitted to the subsequent connection interface module 30, thereby driving the LED display panel 2, and solving the problem of insufficient signal strength when transmitting over long distances or connecting multiple modules.

[0050] In some embodiments, the connection interface module 30 includes a signal adapter circuit 31 and a connection interface circuit 32. The signal adapter circuit 31 is connected to the signal distribution module 20 and is used to perform pin definition specification and electrical characteristic matching for each group of display signals. The connection interface circuit 32 connects the signal adapter circuit 31 to the LED display panel 2.

[0051] In a specific example, the connection interface module 30 rearranges and defines the signal pins output by the display control motherboard according to the interface requirements of the LED display panel 2, and adjusts the electrical parameters such as signal level and impedance to make it fully compatible with the LED display panel 2, ensuring that the signal can be transmitted to the LED display panel 2 accurately.

[0052] Specifically, the input interface circuit 11 is a floating connector.

[0053] More specifically, the floating connection is the 9827B interface floating connector. The 9827B interface floating connector has a unique floating structure that can effectively compensate for minor positional deviations (such as ±0.5mm displacement) that may occur during the installation of the LED display panel 2 modules, ensuring the tightness and stability of the connection and solving the problem of poor connection caused by installation errors in traditional fixed interfaces.

[0054] Of course, the connection input interface circuit 11 of this utility model is not limited to this.

[0055] Please see Figure 6 This utility model also discloses an LED multi-faceted display control motherboard, including an LED display panel 2 and an LED multi-faceted display control circuit 1 as described above, wherein the LED multi-faceted display control circuit 1 is integrated on the LED display panel 2.

[0056] This utility model also discloses an LED multi-faceted display device, including a receiving board and an LED multi-faceted display control main board as described above, with the receiving board disposed on the LED multi-faceted display control main board.

[0057] The LED multi-faceted display control motherboard of this invention can be adapted to receiver boards from various brands, thus improving compatibility.

[0058] In a specific example, the LED multi-faceted display device is a signage device. Of course, this invention is not limited to this.

[0059] In this invention, the LED multi-faceted display control circuit 1 connects to external devices and the LED display panel 2. It receives and parses control signals through the signal access module 10 to generate input signals, and then uses the signal distribution module 20 to generate multiple sets of display signals corresponding to multiple LED arrays on multiple surfaces of the LED display panel 2. These signals are transmitted to the LED display panel 2 via the connection interface module 30 to drive the display of the multiple LED arrays. This invention enables multi-faceted display of signs and labels, solving the problem of limited information display on signs and labels, and improving information transmission efficiency and space utilization. Furthermore, by integrating the LED multi-faceted display control circuit 1 into the control motherboard, the system integration is further improved. Using a single control motherboard for multi-faceted display eliminates the need for separate power supplies, reducing power consumption and solving the problem of heat dissipation issues associated with multiple display motherboards. Additionally, embedding the receiving board into the display control motherboard reduces the product thickness, effectively solving the problem of occupying space in aluminum alloy sign components and improving the system integration of the LED multi-faceted display device.

[0060] The above-disclosed examples are merely preferred embodiments of the present utility model, intended to facilitate understanding and implementation by those skilled in the art. They should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the scope of the present utility model patent shall still fall within the scope of the present utility model.

Claims

1. An LED multi-faceted display control circuit for connecting an LED display panel and an external control device, wherein the LED display panel includes multiple LED arrays disposed on the LED display panel, and the multiple LED arrays are respectively disposed on multiple surfaces of the LED display panel, characterized in that, The circuit includes: A signal access module, connected to the external control device, is used to receive and parse the control signals from the external control device to generate input signals; A signal distribution module, connected to the signal access module, is used to generate and synchronously output multiple sets of display signals based on the input signals, each set of display signals corresponding to a set of LED arrays; A connection interface module connects the signal distribution module and the LED display panel, and is used to adjust and transmit each group of display signals so that each group of display signals is adapted to each group of LED arrays; The display signals in each group are used to drive the corresponding LED arrays to emit light.

2. The LED multi-faceted display control circuit according to claim 1, characterized in that, The LED multi-faceted display control circuit also includes a power adapter module, which is used to connect to a power supply and convert the input voltage of the power supply to supply power to the signal access module, the signal distribution module, the connection interface module and the LED display panel respectively.

3. The LED multi-faceted display control circuit according to claim 2, characterized in that, The power adapter module includes an input conversion circuit and a distribution output circuit. The input conversion circuit is used to convert the power supply voltage, and the distribution output circuit is used to distribute the output voltage of the input conversion circuit to the signal access module, the signal distribution module, the connection interface module, and the LED display panel.

4. The LED multi-faceted display control circuit according to claim 3, characterized in that, The power adapter module also includes a protection monitoring circuit, which is connected to the distribution output circuit and is used to monitor the power supply and cut off the input of the power supply when the power supply is abnormal.

5. The LED multi-faceted display control circuit according to claim 1, characterized in that, The signal access module includes an input interface circuit and a decoding chip. The input interface circuit is used to connect to the external control device and transmit the received control signal to the decoding chip. The decoding chip is used to parse and convert the control signal to generate the input signal.

6. The LED multi-faceted display control circuit according to claim 1, characterized in that, The signal distribution module includes a signal buffer, a logic distribution circuit, and a drive enhancement circuit; The signal buffer is connected to the signal access module and is used to buffer the input signal; The logic distribution circuit is connected to the signal buffer and is used to output the input signal as each group of display signals. The drive enhancement circuit is connected to the logic allocation circuit and is used to enhance the display signals of each group.

7. The LED multi-faceted display control circuit according to claim 1, characterized in that, The connection interface module includes a signal adaptation circuit and a connection interface circuit; The signal adaptation circuit is connected to the signal distribution module and is used to perform pin definition specifications and electrical characteristic matching for each group of display signals. The connection interface circuit connects the signal adapter circuit to the LED display panel.

8. The LED multi-faceted display control circuit according to claim 7, characterized in that, The connection interface circuit is a floating connector.

9. A control motherboard for a multi-faceted LED display, characterized in that, It includes an LED display panel and an LED multi-faceted display control circuit as described in any one of claims 1 to 8, wherein the LED multi-faceted display control circuit is integrated on the LED display panel.

10. An LED multi-faceted display device, characterized in that, It includes a receiving board and an LED multi-faceted display control mainboard as described in claim 9, wherein the receiving board is disposed on the LED multi-faceted display control mainboard.

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