Integrated PCB board, LED display screen module and LED display screen

Abstract

The utility model discloses relate to the LED technical field, specifically including an integrated PCB board, LED display screen module and LED display screen, this integrated PCB board, include: base, LED lamp board is set up on the base, including a plurality of LED lamp pearl, drive chip is set up on the base edge, and is electrically connected with LED lamp board, receiving card is set up on the base, HUB board is set up on the base, is electrically connected with receiving card and drive chip respectively, power conversion unit is set up on the base, is used for the power supply of LED lamp board, drive chip, receiving card and HUB board. Can through the integration of multiple function modules on a mainboard, has simplified the system structure, has reduced the thickness and weight of box.

Description

Technical Field

[0001] This utility model relates to the field of LED display technology, specifically to an integrated PCB board, an LED display module, and an LED display screen. Background Technology

[0002] Currently, LED displays are widely used in advertising media, stage performances, command and control monitoring, and other fields. Traditional LED display systems typically employ a distributed, modular architecture, consisting of multiple functionally discrete components: including a transmitting card and a receiving card responsible for signal processing, a HUB board responsible for signal distribution, an independent power conversion unit, and LED modules composed of lamp beads and driver chips. These components are interconnected through numerous cables and connectors, working together to complete the image display.

[0003] However, this traditional technical solution has many inherent drawbacks. Multiple discrete components lead to a complex system structure, low integration, a large and difficult-to-compress display cabinet, and a heavy overall weight, causing significant inconvenience for transportation, installation, and maintenance. The long signal transmission path and numerous connection nodes introduce a high risk of signal delay and attenuation, affecting display performance such as refresh rate.

[0004] Therefore, those skilled in the art urgently need to develop a new solution to address the aforementioned problems. Summary of the Invention

[0005] To overcome the problems existing in related technologies, this utility model discloses an integrated PCB board, an LED display module, and an LED display screen.

[0006] According to a first aspect of the present invention, an integrated PCB board is provided, the integrated PCB board comprising:

[0007] Base;

[0008] An LED light panel, disposed on the substrate, includes multiple LED beads;

[0009] A driver chip is disposed at the edge of the substrate and is electrically connected to the LED light board;

[0010] A receiving card is disposed on the substrate;

[0011] The HUB board is disposed on the substrate and is electrically connected to the receiver card and the driver chip respectively.

[0012] A power conversion unit is disposed on the substrate and is used to supply power to the LED light board, driver chip, receiver card and HUB board.

[0013] Optionally, the integrated PCB board further includes: a sending card;

[0014] The sending card is plugged into the integrated PCB board via a video source signal interface.

[0015] Optionally, the receiver card, HUB board, and power conversion unit are integrated into a central control box.

[0016] Optionally, the integrated PCB board further includes:

[0017] The LED lamp bead fault detection element is set in the output stage of the driver chip and connected in series in the LED lamp bead circuit;

[0018] A driver chip communication detection element is disposed on the data line between the receiving card and the driver chip;

[0019] A power failure detection element is disposed at the output terminal of the power conversion unit.

[0020] Optionally, the LED lamp bead fault detection element is provided with a first fault indicator light;

[0021] A second fault indicator light is provided on the communication detection element of the driver chip;

[0022] The power supply fault detection element is equipped with a third fault indicator light.

[0023] Optionally, the driving chip is disposed on both sides of the substrate edge.

[0024] Optionally, the base edge is provided with a metal cladding or heat dissipation fins to enhance heat dissipation.

[0025] According to a second aspect of the present invention, an LED display module is provided, including the integrated PCB board described in the first aspect of the present invention.

[0026] According to a third aspect of the present invention, an LED display screen is provided, comprising a plurality of LED display screen modules as described in the second aspect of the present invention.

[0027] In summary, the technical solutions disclosed in the embodiments of the present invention can bring the following beneficial effects:

[0028] (1) By integrating all the functions of the receiver card, HUB board, power supply and other components that are scattered in the traditional LED display system onto a single motherboard, the system structure is greatly simplified and the cabinet thickness and overall weight are effectively reduced. The modular integrated design simplifies the assembly process of the display screen, reduces external wiring and connectors, and improves production efficiency and product consistency.

[0029] (2) By placing the driver chip on the edge of the motherboard, the signal transmission path is shortened, the signal delay and refresh rate delay are reduced, and the heat dissipation conditions are improved, thereby enhancing the system stability and reliability.

[0030] Other features and advantages disclosed in this utility model will be described in detail in the following detailed description section. Attached Figure Description

[0031] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings:

[0032] Figure 1 This is a schematic diagram of an integrated PCB board according to an exemplary embodiment;

[0033] Figure 2 It is based on Figure 1 A schematic diagram of another integrated PCB board structure is shown;

[0034] Figure 3 It is based on Figure 1 The diagram shows a structural schematic of an integrated central control box. Detailed Implementation

[0035] The specific embodiments disclosed herein will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this disclosure.

[0036] like Figures 1-2 As shown, an integrated PCB board includes: a substrate 10; an LED light board 20 disposed on the substrate 10, including multiple LED beads; a driver chip 30 disposed on the edge of the substrate 10 and electrically connected to the LED light board 20; a receiver card 40 disposed on the substrate 10; a hub board 50 disposed on the substrate 10 and electrically connected to the receiver card 40 and the driver chip 30 respectively; and a power conversion unit 60 disposed on the substrate 10 for supplying power to the LED light board 20, the driver chip 30, the receiver card 40, and the hub board 50.

[0037] For example, in the embodiments disclosed in this invention, the functions of the receiving card 40, the HUB board 50, and the power conversion unit 60 are integrated onto a single PCB board, which can reduce the overall thickness of the LED enclosure and improve its lightweight design. Specifically, this integrated LED motherboard includes a substrate 10, an LED light board 20, a driver chip 30, a receiving card 40, a HUB board 50, and a power conversion unit 60. The LED light board 20 is disposed on the substrate 10 and includes multiple LED beads arranged in an array. These LED beads constitute the pixels of the display screen and are used to display images according to display data signals. The driver chip 30 is disposed in the edge area of ​​the substrate 10 and is used to receive display data signals from the receiving card 40 and convert the display signals into specific current outputs to drive the corresponding LED beads to emit light (i.e., display the corresponding image).

[0038] In the embodiments disclosed in this invention, the driver chip 30 is positioned at the edge of the substrate 10 (preferably, at both edges of the substrate 10), effectively shortening the signal transmission path and reducing signal delay and attenuation. Furthermore, since the driver chip 30 is a component prone to heat generation, placing the heat-generating component in an area more conducive to heat dissipation improves the overall heat dissipation performance of the LED enclosure. A power conversion unit 60 is disposed on the substrate 10 and is used to convert externally input electrical energy and provide a stable power supply to the LED light board 20, the integrated control module, and the driver chip 30. The power conversion unit 60 is used to convert mains power (220V / 110V) into low-voltage DC power (e.g., 5V / 4.2A) required by the LED display screen.

[0039] The integrated PCB board also includes a transmitting card; the transmitting card is plugged into the integrated PCB board via a video source signal interface.

[0040] For example, the sending card is responsible for receiving video source signals (such as HDMI, DVI, network signals) from a computer or external source, decoding, format conversion, and color correction of the video source signals, and generating digital signals suitable for LED display (i.e., processed video signals). The receiving card 40 is used to receive the digital signals transmitted by the sending card, further process the processed video signals, such as grayscale control and refresh rate adjustment, generate display signals, and distribute the display signals to the LED modules corresponding to their respective areas. The HUB board is used as a distribution hub for the display signals, distributing the display signals output by the receiving card 40 to multiple LED modules through multiple output interfaces (such as ribbon cables, network cables, etc.), ensuring that the signals are synchronously transmitted to the display units corresponding to each LED module.

[0041] like Figure 3 As shown, the receiver card 40, HUB board 50, and power conversion unit 60 are integrated into a central control box.

[0042] For example, the receiver card 40, the HUB board 50, and the power conversion unit 60 are integrated into a central control box. This central control box can receive and process external video sources (such as HDMI, DVI, network signals, etc.), and complete a series of processes including decoding, format conversion, color correction, grayscale control, refresh rate adjustment, etc., and finally generate display data signals suitable for LED display modules. It can also reduce the overall thickness of the LED cabinet and improve the lightweighting of the cabinet.

[0043] In addition, the integrated PCB board also includes: an LED lamp bead fault detection element 21, which is located at the output stage of the driver chip 30 and connected in series in the LED lamp bead circuit; a driver chip communication detection element 22, which is located on the data line between the receiver card 40 and the driver chip 30; and a power supply fault detection element 23, which is located at the output terminal of the power conversion unit 60. The LED lamp bead fault detection element 21 is provided with a first fault indicator light; the driver chip communication detection element 22 is provided with a second fault indicator light; and the power supply fault detection element 23 is provided with a third fault indicator light.

[0044] For example, the LED bead fault detection element 21, the driver chip communication detection element 22, and the power supply fault detection element 23 are used to monitor in real time the loop current of the LED beads in the LED display module, the communication status with the driver chip 30, and the output voltage / current of the power conversion unit 60, etc., to determine whether there are faults such as LED bead short circuit / open circuit, driver chip 30 communication timeout, power supply overvoltage / undervoltage / overcurrent, etc., and immediately output a fault indication signal when an abnormality is detected. In the disclosed embodiment of this utility model, the fault indication signal can control a status indicator light to change color (such as normal green light, fault red light) or flashing mode, so that maintenance personnel can intuitively and quickly locate the faulty motherboard, or even accurately locate the faulty module (such as power supply problem or LED bead problem), which greatly reduces the maintenance threshold and time cost.

[0045] By using a detection unit, detection elements and corresponding fault indicator lights are set at different locations such as the LED lamp bead circuit, the data line between the integrated control module and the driver chip 30, and the output terminal of the power conversion unit 60. This allows for the detection of faults in each functional module of the integrated motherboard. When a fault is detected in a functional module, the indicator light at the corresponding location will illuminate, enabling maintenance personnel to quickly locate the fault location and faulty component. This solves the problem of inconvenient maintenance of integrated LED motherboards and reduces the difficulty of subsequent maintenance.

[0046] Optionally, the LED lamp bead fault detection element 21 is provided with a first fault indicator light; the LED lamp bead fault detection element 21 is used to: monitor the loop current of the LED lamp beads in the LED display module and determine whether there is a short circuit or open circuit fault in the lamp beads; if there is a short circuit or open circuit fault, the first fault indicator light will light up a red fault warning signal; if there is a short circuit and open circuit fault, the first fault indicator light will light up a green normal signal.

[0047] The driver chip communication detection element 22 is equipped with a second fault indicator light. The driver chip communication detection element 22 is used to: determine whether the driver chip 30 is working normally or whether the communication has timed out by performing a communication handshake with the driver chip 30; if there is a communication timeout, the second fault indicator light will light up a red fault warning signal; if the driver chip 30 is working normally, the second fault indicator light will light up a green normal signal.

[0048] Optionally, a third fault indicator light is provided on the fault detection element of the power conversion unit 60; the fault detection element of the power conversion unit 60 is used to: monitor the output voltage and current of the power conversion unit 60, and determine whether the power supply is over-voltage, under-voltage or over-current; if over-voltage, under-voltage or over-current exists, the third fault indicator light will illuminate a red fault warning signal; if there is no over-voltage, under-voltage or over-current, the third fault indicator light will illuminate a green normal signal.

[0049] The edge of the base 10 is provided with a metal cladding or heat dissipation fins to enhance heat dissipation.

[0050] For example, a metal cover or fin-shaped heat sink is provided at the edge of the substrate. Through the thermal conductivity of the metal, the heat generated by the main heat-generating components (such as the driver chip 30) located in this area is quickly conducted out and dissipated into the air, which can effectively reduce the operating temperature of the substrate and improve stability and lifespan.

[0051] The present invention also discloses an LED display module, including an integrated PCB board.

[0052] The present invention also discloses an LED display screen, including multiple LED display screen modules.

[0053] In summary, this utility model relates to the field of LED technology, specifically including an integrated PCB board, an LED display module, and an LED display screen. The integrated PCB board includes: a substrate; an LED light board disposed on the substrate, including multiple LED beads; a driver chip disposed on the edge of the substrate and electrically connected to the LED light board; a receiver card disposed on the substrate; a hub board disposed on the substrate and electrically connected to both the receiver card and the driver chip; and a power conversion unit disposed on the substrate for supplying power to the LED light board, driver chip, receiver card, and hub board. By integrating multiple functional modules onto a single motherboard, the system structure is simplified, and the thickness and weight of the enclosure are reduced.

[0054] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0055] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0056] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. An integrated PCB board, characterized in that, The integrated PCB board includes: Base; An LED light panel, disposed on the substrate, includes multiple LED beads; A driver chip is disposed at the edge of the substrate and is electrically connected to the LED light board; A receiving card is disposed on the substrate; The HUB board is disposed on the substrate and is electrically connected to the receiver card and the driver chip respectively. A power conversion unit is disposed on the substrate and is used to supply power to the LED light board, driver chip, receiver card and HUB board.

2. The integrated PCB board according to claim 1, characterized in that, The integrated PCB board also includes: a sending card; The sending card is plugged into the integrated PCB board via a video source signal interface.

3. The integrated PCB board according to claim 1, characterized in that, The receiver card, HUB board, and power conversion unit are integrated into a central control box.

4. The integrated PCB board according to claim 1, characterized in that, The integrated PCB board also includes: The LED lamp bead fault detection element is set in the output stage of the driver chip and connected in series in the LED lamp bead circuit; A driver chip communication detection element is disposed on the data line between the receiving card and the driver chip; A power failure detection element is disposed at the output terminal of the power conversion unit.

5. The integrated PCB board according to claim 4, characterized in that, The LED lamp bead fault detection element is equipped with a first fault indicator light; A second fault indicator light is provided on the communication detection element of the driver chip; The power supply fault detection element is equipped with a third fault indicator light.

6. The integrated PCB board according to claim 1, characterized in that, The driving chip is disposed on both sides of the substrate edge.

7. The integrated PCB board according to claim 1, characterized in that, The base edge is provided with a metal cladding or heat dissipation fins to enhance heat dissipation.

8. An LED display module, characterized in that, Including the integrated PCB board as described in any one of claims 1 to 7.

9. An LED display screen, characterized in that, It includes multiple LED display modules as described in claim 8.

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