What is the most important device of LED display? Is it driving IC, power supply, or kingligh nationstar LED lamps beads? Anyone who knows about the LED video wall display industry knows the answer, that is, the LED beads. So how do we distinguish the advantages and disadvantages of LED display lamp beads? Now let’s introduce it to you.
1. Look at the solder joint: The regular LED lamp belt manufacturer produces the LED lamp belt using SMT patch process, using solder paste and reflow soldering process.
2. Look at the quality of FPC: FPC is divided into copper cladding and calendered copper. Copper foil cladding is protruding. If you look closely, it can be seen from the connection between welding pad and FPC.
3. Look at the cleanliness of the surface of the LED lamp belt: If the LED lamp belt is produced by SMT process, its surface cleanliness is very good, and no impurities and stains can be seen.
4. Look at the chip and production process for LED lamp: You can’t see the difference with your eyes. Use aging equipment and testing equipment. If you put several manufacturers’LED screen on the aging instrument and aging for 24 hours or more with high current, you can measure the brightness of several manufacturers to see which LED has the smallest attenuation and which quality has the smallest attenuation.