Why do We Need To Do 48-72 Hours LED Display Module Testing?

LED Display Module testing refers to imitating the long time operation without working problems, it is the most important to ensure the reliability of the LED display. LED display can be more stable after testing, and it can help the use efficiency. led screen testing test is a very important link in quality control.

led display

The LED test is based on the product’s failure rate curve, which is the characteristics of the bathtub curve, and countermeasures are adopted to improve the reliability of the product. The indoor-led module testing method includes constant current testing and constant pressure testing. A constant current source is that the current is constant at any time. The frequency is not constant. That’s communication or pulsating current. The communication or pulsating current source can be described as the effective value stable, but this power supply cannot be called a “constant current source”. Constant current testing is the most consistent feature of the LED current operation and is the most scientific method for the testing of LED displays. Over-current impact testing and manufacturers the latest clothing design school chooses a testing technique, after using the frequency adjustable, current adjustable constant current source for such testing, in order to judge the quality of the outdoor led module in a short time and can pick out the dangerous LEDs make sure the led display module working well after installation.

led display

The testing of LED displays is divided into white balance testing (2×24 hours) and video testing (24 hours). Totally 48-72 hours before packing.

led display

Testing process of the LED display screen:

  1. Check the led display module to install it all correctly.
  2. Check whether there is a short circuit or not.
  3. Check whether the module is flat and neat.
  4. Check whether the appearance is intact or not.
  5. Use the online led control system to light up.

led display

Make sure the testing time is continuously light for more than 48 hours

After the testing test, please check the quality control group for parameters. Test content: white balance, red, green, blue, gray gradient, video effect, text effect. After 48-72 hours of testing, the problem should be reported to the manager of the engineering department in a timely manner. replace or repair the broken LEDs. Make sure all parts will be working well and stably before packing.

Now more and more customers want to assemble led displays by themselves. and most led display factory has led module in stock, but for quick shipping and stock purpose. some modules are shipped without strictly testing and testing. Also, the stock-led display module was in a warehouse for a long time. some factories ship to customers without any double check. When customers get the led modules. many problems come out such as bad LEDs, loose soldering, etc. so when you plan to build the led display, please pay attention to this advice. it will save a lot of time and energy for you! any questions, please contact us.