In the process of LED display production, aging test is an indispensable part for LED displays, but hardly get a mention by purchaser. Here I’m going to give a simple introduction about it.
LED Display Module aging and testing is refers to imitate 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 aging, and it can help the use of the efficiency. led screen aging test is a very important link in quality control.
The LED aging test is based on the product’s failure rate curve, which is the characteristics of the bathtub curve, and the countermeasures are adopted to improve the reliability of the product.The indoor led module aging method includes constant current aging and constant pressure aging. 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 “constant current source”.Constant current aging is the most consistent feature of LED current operation and is the most scientific method for the aging of LED displays.
Aging test of LED display refers to in an imitating test environment, to show whether the abnormal phenomenon of the LED display will occur when it work in a long operating time, it’s an important step to ensure the reliability of the LED display screen and essential for quality inspection and quality guarantee. After aging, the efficiency and the stability of the LED display can enhance in further use.
The aging test contains two parts: LED module aging and the whole LED display screen aging.
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LED module aging
LED modules cannot be used directly after they are produced; aging is the last necessary step. The modules are aging in a sealed room which the constant temperature is 45℃, this will last 24 hours during aging. -
LED display aging
The whole LED display aging will last 48 hours, during this time the electricity supply shouldn’t cut off. Aging of the entire screen for a total of 48 hours, including 24 hours of white screen aging, which means the LED display screens are showing white color all the time during the aging; and the remaining 24 hours of video aging, during this time the LED displays are playing non-stop video, in order to ensure the display screens have no problems before shipment.
Maxcolor visual Aging test process of led display screen:
1.Check the led display module to install all correct.
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.
Make sure the testing time is continuously light for more than 48 hours
professional LED screen manufacturer-Factory Tour-Aging test
After the aging test, please check the quality control group for parameters.Test content: white balance, red, green, blue,gray gradient,video effect,text effect.after 48 hours aging test,the problem should be reported to the manager of the engineering department in a timely manner.replace or repair the broken leds. making sure all parts will be working well stably before packing.
Now more and more customers want to assemble led display by themselves. and most of led display factory has led module in stock, but for quick shipping and stock purpose. some modules be ship without strictly aging and testing.aslo the stock led display module in warehouse for a long time. some factory ship to customer without any double check. when customer get the led modules. many problems come out such as Bad leds,loose soldering etc. so when you are plan to build the led display,please pay attention to this advice.it will save a lot of time and energy for you!
