Eight factors to ensure the quality of LED display screens.

Eight factors to ensure the quality of LED display screens.

LED display has the problem of technical cost. Many companies have invested too much capital in technology, which has led to the high price of LED display. So, how to ensure the quality of LED display technology while reducing its cost at the same time?

1. The heat dissipation performance of the LED display.

If the heat dissipation performance of the LED display is poor and the temperature is too high, it will have a certain impact on the stability of the LED, and it will accelerate the performance degradation of the LED display in the long run. Therefore, in this respect, the heat dissipation design of the PCB board and the heat dissipation and ventilation of the cabinet must be done well.

2. Welding problem.

When the LED display does not light up, it may be caused by solder joints. Since the virtual welding includes many aspects, it must be done in detail here. Strict inspections must also be done when leaving the factory.

3. The verticality of the in-line LED display must be well controlled.

A small deviation will directly affect the brightness uniformity of the LED, resulting in inconsistent color blocks. Therefore, the LED display must be perpendicular to the PCB board.

4. Anti-static LED display.

Manufacturers of anti-static LED display screens must take protective measures. Various anti-electricity settings must be in place, and they must be tested regularly.

5. LED mixed light.

LEDs of the same color and different brightness levels need to be mixed. If there is a problem with this procedure, the brightness of the LED display will be partially different, which will directly affect the appearance of the LED display.

6. LED heating value.

Under normal circumstances, the large current used by the LED cannot be higher than 80% of the standard value of 20MA. If it is a small pitch display, the current value must be reduced.

7. Drive circuit design.

If the drive circuit is not well designed, the brightness of the LEDs around the LED display will be lower than the middle.

8. Strictly control the temperature and time of wave soldering.

The preheating temperature is 100℃±5℃, and the height should not exceed 120℃, and the preheating temperature must rise steadily. The soldering temperature is 245℃±5℃, and the soldering time is recommended not to exceed 3 seconds. Don’t vibrate or impact the LED after the furnace. Return to normal temperature. The temperature parameters of the wave soldering machine should be checked regularly.

Every step of the LED display technology is the processing of details, as long as the better the details, the higher the quality of the LED display.