Experience in Distinguishing the Quality of LED Electronic Screens

How to distinguish the quality of LED electronic screen lamp beads? Is it a driver IC, a power supply, or an LED lamp bead? Anyone who understands the LED electronic screen industry knows the answer, that is, LED lamp beads. So how do we identify the advantages and disadvantages of LED electronic screen lamp beads? Let me introduce it to you with United Huiye Technology. Look at the quality of FPC: FPC is divided into two types: copper-clad and rolled copper. The copper foil of the copper-clad board is protruding. If you look closely, you can see it from the connection between the pad and the FPC.

Look at the solder joints: The LED modules produced by regular LED module manufacturers are produced by SMT chip technology, solder paste and reflow soldering technology. Look at the chip and production process used in LED electronic screens: you can’t tell the difference with your eyes, you need to use aging equipment and testing equipment. If you put LEDs from several manufacturers on an aging instrument and use high current to age them for 24 hours or longer , You go to measure the LED brightness of several manufacturers to see which LED electronic screen has the smallest attenuation of luminous intensity, and the quality with the smallest attenuation is the best. Look at the cleanliness of the surface of the LED electronic screen: If the LED module produced by the SMT process is used, the surface cleanliness is very good, and no impurities and stains can be seen, and the display effect of such an LED electronic screen is perfect.

.