JERYO LED has analyzed the causes of interference and provided a solution for you

1. Flashing and flickering : The display screen has horizontal or vertical lines flashing, which is usually related to the clock frequency (DLCK) being too high. When the signal frequency is high, it is easy to be interfered. This problem can be alleviated by reduci ng the DLCK frequency and adjusting the phase and duty cycle.

2. Multi-line ripples : When affected by static electricity, multi-line ripples may appear on the display screen, affecting the visual effect.

3. Equally spaced vertical bar interference : This phenomenon is usually caused by the mismatch of the characteristic impedance of the network cable, and manifests itself as uniform vertical bar interference on the display.

Solution

1. Optimize the external environment

2. Reduce radio wave interference

3. Avoid placing radio transmitting equipment near the display screen, and install lightning rods and lightning protection nets to reduce lightning interference.

4. Improve internal circuit design

5. Reasonable wiring : Ensure that there is an appropriate distance between the power line and the signal line to reduce electromagnetic interference. Using differential signal transmission and adding data error correction code can improve signal reliability.

6. Optimize PCB design : In PCB design, separate the ground lines of high-frequency digital circuits and low-level analog circuits to reduce interference.7. Check the power supply, control card, connecting cables, etc. regularly, and replace aging or damaged parts in time.

8. Clean the display surface regularly to maintain its good display effect and cooling performance.

9. Improve the installation environment : Choose a suitable location to avoid installing the display in a location that is easily disturbed, and ensure good ventilation to avoid overheating.

10. Use anti-interference technology : Use shielding technology and filters, such as metal shielding covers and filters, to reduce the impact of external interference signals.