Square Led Lamp Beads LED two-color indicator light

As the most expensive and most used component of LED display, Led Lamp Beads play a leading role in the quality of LED display. Today we will introduce to you why LED Lamp Beads are the most critical component of LED display screens, and how to distinguish the advantages and disadvantages of LED Lamp beads?

　　 The most critical component of a full-color LED display is LED lamp beads. There are three reasons:

　　First, LED is the most used key device in the full-color screen machine, and thousands to tens of thousands of LEDs will be used per square meter;

　　Second, LED is the main body that determines the optical display performance of the entire screen, which directly affects the audience's evaluation of the display Red Light Emitting Diode;

　　 Third, LED accounts for the largest proportion of the overall cost of the display, ranging from 30% to 70%.

How to identify the pros and cons of LED display beads

　　 One, look at the solder joints. The LED strips produced by the regular LED strip manufacturers are produced by SMT patch technology, solder paste and reflow soldering process LED Light Board Patch.

　　 Second, look at the quality of FPC. FPC is divided into two types: copper and rolled copper. The copper foil of the copper-clad board is protruding. If you look closely, it can be seen from the connection between the pad and the FPC.

　　 Three, look at the cleanliness of the surface of the LED strip. If the LED light strip produced by SMT process is used, the cleanliness of the surface is very good, and there are no impurities and stains.

4. Looking at the chips and production process of Led Lights, you can’t tell the difference with your eyes. You need to use aging equipment and testing equipment. If you put several manufacturers’ LEDs on the aging meter and use high current to aging for 24 hours or longer Over time, you can measure the brightness of LEDs from several manufacturers to see which LED luminous intensity attenuation is the smallest, and the quality with the smallest attenuation is the best Light Emitting Diode.