LED Display System is a complete system composed of a number of LED display components, which enables each component to interact with each other, so that the LED display can perform specific functions and performances.
So how about the working principle and component details of LED Display System, let’s go through this article to understand it.
Workflow and Principle of LED Display System
Workflow of LED Display System
The components of LED Display System are connected through power and data cables, and when the power supply is turned on, the electric current enters into the internal components of the LED display along the power cord.
Especially in the light-emitting diode, the circulating current will be converted from electric energy to light energy, which makes the light-emitting diode able to emit light.
At the same time, An integrated circuit is added to the PCB board of the LED display module, through the pulse width modulation (PWM signal) on the inside of the three colors (red, green, blue) gray level control, so that the LED display screen presents a colorful picture, and has a sense of hierarchy.
LED control system principle
The LED Display control System mainly includes synchronous and asynchronous methods. Synchronous control method is to have a control card LED display and PC connection, in the PC on the playback content after modification.
Through the network cable transmission to the control card, and then the control card will LED display screen processing, so that it can real-time synchronous playback screen.
There is also an asynchronous control method, this control method is to store the original content screen to be played on the play box, and then the play box builds a signal transmission bridge through the sending card and the LED display with network signal performance.
The box can switch the screen of the LED display through WiFi, 4G and other signal channels to realize the remote control effect.
Component Details of LED Display System
LED Module
The internal design process of LED module is to encapsulate hundreds of LED beads and driver ICs through SMD on PCB circuit boards, which are equipped with electronic components that can control the LED beads and driver ICs.
LED Display System will also use reinforcing bars to fix the PCB circuit boards to prevent PCB circuit boards from being dented. At the same time, a mask assembly is added to the surface of the LED bead to protect the LED bead.
Cabinet
The cabinet is made up of many LED modules. Through the LED cabinet can be LED power supply and LED module in accordance with a certain order to connect, its beauty and practicality greatly improved.LED cabinet is mainly used in die-casting aluminum, iron and aluminum for production.
Among them, die-casting aluminum cabinet will be more beautiful and lightweight, suitable for rental installation. Iron cabinet will be heavier, but good durability, can be very good protection of the internal structure, suitable for fixed installation. Aluminum cabinets are lighter than the first two, making it easier for staff to install, move and dismantle.
Video Processor
The video processor is a component of the whole LED Display System that assists the picture to be more perfect. It can expand or scale the LED display content , and make adjustments to the screen.
A regular video processor can handle 3 million pixels, if you want to handle more pixels, then consider choosing a higher level video processor, or stacking on top of a regular video processor until you can perfectly control all the pixels on the LED screen.
Power supply
As the name suggests, it is the supply of sufficient power to the LED display to enable the LED Display System to operate. A regular power supply is capable of bringing stable power to the LED display for a long period of time.
If the reason for your LED display not lighting up is the power supply, then you can choose a dial-up power supply, which can regulate the power of the LED display to ensure its normal operation.
Wiring
Power cord
Mainly used to transport electricity, should be strictly in accordance with the principle of positive and negative poles for connection, to ensure that the current can pass through each component. The following are the 5 kinds of component connection about the power cord:
- The power switch is connected to the power air plug of the LED cabinet.
- The aerial plug of the cabinet is connected to the power supply unit inside the cabinet.
- The power supply air plug of the cabinet is connected to the power supply unit inside the cabinet.
- The power socket on the PCB of the LED module is connected to the power supply unit in the cabinet.
- If you need to use the power distribution cabinet, then you also need to use the power cord to connect the power switch, the power distribution cabinet, and the power flight plug of the cabinet in sequence.
Data Cable
The main purpose of this cable is to synchronize the reading and transmission of data between the various components of the LED Display System, and the following are the three types of data cable connections:
- A long cable is used for the connection between LED modules.
- A short cable is used for the connection between the LED module and the control card.
- Data shipping jacks between cabinets are connected with data cables.
Network cable
It can be connected with the auxiliary LED display equipment to adjust the content on the LED display, and the following are the 3 kinds of component connections about the network cable:
- Connect the interface of the computer with the network cable socket on the cabinet using the network cable, and the length of its network cable does not exceed 80 meters.
- The network cable socket on the cabinet is connected to the control card.
- The network cable socket on the cabinet is connected with the cabinet.
Control Software
The control software of the LED Display System is mainly downloaded on the PC with Windows system, which can adjust the screen of the LED display through the data line and the network cable. The control software can provide the following functions:
- Adjustment of the color of the LED display.
- Simple drawing on the editing panel.
- Modify and layout the text content.
- Add effects to the switching between screens.
- Preview the completed playback content.
Configuration Tool
Configuration tools are used to assemble the components of the LED Display System. When assembling the LED cabinet, such as the power supply, PCB panel, connecting pieces, etc., you need to use a screwdriver to tighten and fix them. When facing LED modules with strong magnetic attraction, vacuum suction cups can be used for disassembly.
Conclusion
Through the above reading, I believe you have a deep understanding of the working principle of LED Display System and its main components, if you still have some doubts, then you can seek help from us, we will provide you with satisfactory answers.
