Solution to the LED display flickering problem

Although the flickering of LED display is not a big problem, it is a headache. It not only affects the quality of the playback picture, but also affects the mood of the user. So what is the reason for the flickering of LED display? What is the good solution?

Reasons for flickering of LED display:
1. The driver loading program is wrong.
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 whether the small light on the control card is on. If it is not on, it is broken.
5. Is the connection line between the power supply and the control card 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 the control card.

Solutions for flickering of LED display: If the whole screen is dotted and the image is twisted, it is generally because the driver loading program is wrong. Recheck the driver loading program. If it doesn't work, uninstall and reinstall it. Another possibility is that the sending card is broken, then you need to replace the sending card.

If it is irregular flickering, it is generally a system frequency problem. Replacing the system or adjusting the setting parameters can basically solve the problem!

If it is a flashing state, it may be a graphics card driver problem, or it may be a sending card resolution setting problem. Another possibility is a power supply problem (insufficient power supply, information noise, electromagnetic interference). When designing PCB, you should consider the wire diameter of the power supply and signal routing, as well as the PCB production process. Adding a few more capacitors to the module can also improve it.

If it is accompanied by text flashing (irregular white edges around the text, irregular flashing, and disappearing after the text disappears), this is a graphics card setting problem. In the display properties, cancel "Show hidden shadow under the menu" and "Edge smooth transition effect" to solve this type of problem.