As we all know, LED is a semiconductor product. In the actual production process, it is mainly the direct contact and indirect contact between human body and relevant components to generate static electricity. If the voltage between two or more pins of LED exceeds the breakdown strength of component medium, the component will be damaged. The LED of the LED display screen is a diode composed of PN junction. The breakdown between the emitter and the base will sharply reduce the current gain. The functional damage of the LED itself or the IC in the driving circuit may not occur immediately after being affected by static electricity, but these potentially damaged components usually show up in the process of use, It will have a fatal impact on the service life of the display. Then static electricity must be prevented. It is suggested that the assembly personnel should wear anti-static clothes (such as anti-static clothes, hats, shoes, finger sleeves or gloves) and anti-static wrist strap (the wrist strap must be connected with the grounding system to quickly dissipate static electricity on its surface or inside); The assembly table (workbench) shall use anti-static table pad and be grounded; Antistatic element box shall be used to contain LED; Soldering iron, foot cutting machine, tin furnace (or automatic reflow soldering equipment) shall also be grounded. LED packaging bags and semi-finished product packaging materials shall use anti-static sponge or packaging.