LED full-color display flicker reasons and solutions

Jun 30, 2021

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With the wider application of LED full-color display screens, the flicker of LED full-color display screens has gradually attracted attention. Although it is not a big problem, it is a headache. It not only affects the quality of the playback picture, but also Affect the user's mood, so what is the reason for the flickering of the LED full-color display? Is there any good solution? Let's take a look


LED full color display


Reasons for LED full-color display flicker:


1. Wrong driver loader


2. The network cable between the computer and the screen is too long or the network cable is faulty


3. The sending card is broken


4. The control card is broken. Check if the small light on the control card is on? It's broken if it doesn't shine.


5. Whether the connection line between the power supply and the control card is short-circuited.


6. The output voltage and current of the power supply are unstable. Do not bring too many boards with the power supply with control card.


LED full color display


Corresponding solutions for LED full-color display flickering:


If it's the whole screen, the picture or shadow is moving, the driver loader is usually wrong. Check the driver loader again, it is impossible to uninstall and reinstall.


There is another possibility that the sending card is broken, and the sending card needs to be replaced at this time.


If it is irregular flicker, it is generally a system frequency problem. Replace the system, or adjust the setting parameters, it can basically be solved!


If it is blinking, it may be a problem with the graphics card driver, or it may be a problem with the resolution setting of the sending card.


Another possibility is the power supply problem (insufficient power supply, information clutter, electromagnetic interference). When designing the PCB, more consideration should be given to the diameter of the power supply and signal traces, as well as the PCB production process. Adding a few more capacitors to the module also has some improvements.


If it is accompanied by text flashing (irregular white borders around the text, irregular flashing, and the text disappears after it disappears), this is a problem with the graphics card settings. In the display properties, cancel the "Display hidden shadow under the menu" and "Smooth edge transition effect" . Can solve such problems.


The above is Winbon Ying Optoelectronics sharing about the causes of LED full-color display flicker, as well as solutions for LED full-color display flicker. I hope it will be helpful to everyone.


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