LED electronic screen technology is becoming increasingly mature in my country, but in actual use, LED electronic screens may have some problems such as static electricity. So is static electricity on LED electronic screens dangerous? Next, let’s take a closer look.
1. Causes of static electricity
From a microscopic perspective, according to atomic physics theory, when electricity is neutral, the substance is in an electrical equilibrium state. Due to the contact of electrons of different substances, the gain and loss of electrons leads to the loss of electrical balance, resulting in static electricity.
From a macroscopic perspective, the reason is that the friction between objects generates heat, stimulating electron transmission. The contact and separation between objects generates electron transmission. Electromagnetic induction causes an unbalanced distribution of charges on the surface of objects. The combined effect of friction and electromagnetic induction.
LED display manufacturers static voltage is generated by the contact and separation of different kinds of substances. This effect is well-known friction and start-up, and the voltage depends on the characteristics of the materials themselves that rub against each other. LED electronic screens are mainly because of the direct and indirect contact between the human body and related components in the actual production process, which leads to static electricity. Therefore, according to the characteristics of this industry, some targeted anti-static measures can be formulated.
2. Static electricity hazards during the production of LED electronic screens
Ignoring anti-static during the production process can cause electronic equipment to malfunction or be damaged.
Static electricity can also permanently damage semiconductor devices if they are not powered when placed alone or attached to a circuit. LEDs are known as semiconductor products, and their voltage exceeds the destructive strength of the component media and can damage the components. The thinner the oxide layer, the more sensitive the LED and driver IC are to static electricity. For example, if there is a problem with the quality of the solder filling or the solder itself, a serious leakage path will be created, causing damage.
Is static electricity on LED electronic screens also dangerous? What do you think
Another kind of failure occurs when the temperature of the node exceeds the melting point of semiconductor silicon. The pulse energy of static electricity can cause local heating, leading to failures that directly destroy the lamp and IC. This can also happen if the voltage is lower than the yield voltage of the medium. For example, LED is a diode composed of PN connections, and the current gain may be sharply reduced due to the destruction between the emitter and the base. Under the influence of static electricity, the indicator light itself or the IC on the driver circuit may not immediately cause functional damage. These potential damage components usually appear during use, so the impact on the life of the display is fatal.
