Common problems of LED display screen control system

The contrast to LED screenis 1000 : 1 ; The flatness coefficient of the box is less than 0.5mm , and the power factor is more than 88% ; Air conditioning can not be used for refrigeration ; LED displaycontrol card , also known as LED asynchronous control system or LED electronic display control card , is the core component of LED graphic electronic display . It is mainly responsible for receiving the picture display information about the computer serial port , putting it into the frame memory , and generating the serial display data and scanning control sequence required by the full-color LED display screenaccording to the partition driving mode to display various words and graphics . 

Users often encounter various problems with LED screen control cards in their daily life . The following is a summary of common problems of the use of LED screen control system for our customers by siweixin optoelectronics , a Shenzhen LED display manufacturer : 

1 . How does the embedded real-time + offline two in one control system control the full-color screen ? 

The embedded real-time + offline electronic display screen is mainly composed of four parts : DVI sending controller or 1000m network card , CPU , memory (SD card ) and display scanning driver .

After power on , the system will initialize . The CPU will take out the display content stored by the user from the memory (SD card ) and send it to the full-color LED display screen to restore the content edited by the user . (the content edited by the user is sent to the controller through LAN communication ) When the CPU detects that real-time information is sent , it will automatically switch the data channel to turn the display screen of real-time display . Real time displays is the highest priority to full-color display .

2 . Audio processing of embedded real-time + offline two in one control card ?

When the LED screen is offline , the control card has its own audio processor , which can play audio offline . In the real-time state , the audio are collected in real time through the DVI transmission controller , then sent to the control card through the 1000m network cable , and then played through the audio playback chip . Therefore , the audio of the control card can be switched in real time and offline . 

3 . Can the control system realize group screen control ? 

The LED screen control system is equipped with Ethernet (local area network ) interface , which can carry out flexible and convenient networking . It can control the networked electronic display screen of / for the computer in the LAN , . So it is suitable for group screen networking to release information . 

4 . do the LED display screen need gray scale ? 

Full color screen grayscale refers to the indicator of LED's ability to show pictures . If there is no grayscale , only words and patterns can be displayed . The pictures on the computer are full-color . 

In order to restore the real effect , only the full-color LED electronic display can do it . Only patterns can be displayed on the monochrome LED electronic display screen , and the pictures displayed on the two-color LED electronic display screen are more like black-and-white photos , so there must be gray level .

5 . Can the control system play animation and video offline ? 

The full-color LED displays control card can directly accept files in various video formats . The software automatically processes them into the size suitable for the electronic display screen . It does not need to be cut into a bitmap and directly sends them to the control card in the format of MPEG4 , avi , flv , BMP , etc .