In recent years, LED electronic screen indoor outdoor technology is becoming more and more mature in our country, but in practical use, LED electronic screen may have some problems such as static electricity. Is the static electricity of LED electronic screen dangerous? Next, let’s take a closer look.
Is static electricity also dangerous for LED electronic screen? What’s your opinion?
1. The cause of static electricity
From the microscopic point of view, according to the theory of atomic physics, when electricity is neutral, the matter is in the state of electric balance. The gain and loss of electrons are caused by the contact of electrons of different substances, thus losing the electric balance and producing the electrostatic phenomenon.
From a macro point of view, the reason is that the friction between objects produces heat, which stimulates the transmission of electrons. Contact and separation between objects produce electron transport. The unbalanced distribution of surface charge caused by electromagnetic induction. The comprehensive effect of friction and electromagnetic induction.
Electrostatic voltage is produced by the contact and separation of different kinds of substances. This effect is well known for friction and start-up, and the voltage depends on the properties of the material itself rubbing against each other. LED electronic screen is mainly because in the actual production process, the direct contact and indirect contact between human body and related components lead to static electricity. Therefore, according to the characteristics of the industry, we can develop some targeted anti-static measures.
2. Electrostatic hazards in the production of LED electronic screen
Neglecting anti-static in the production process will lead to electronic equipment failure or damage.
Static electricity can also permanently damage semiconductor devices if they are not energized when placed alone or attached to a circuit. LED is known as semiconductor products, its voltage exceeds the damage intensity of component media, and may damage components. The thinner the oxide layer is, the more sensitive the LED and driver IC are to static electricity. For example, if there is a problem with the solder filling or the quality of the solder itself, there will be a serious leakage path, resulting in damage.
Is static electricity also dangerous for LED electronic screen? What’s your opinion?
Another fault occurs when the temperature of the node exceeds the melting point of the semiconductor silicon. The pulse energy of static electricity will cause local heating, which will directly damage the lamp and IC. This can also happen if the voltage is lower than the yield voltage of the medium. For example, an LED is a diode composed of PN connections, and the current gain may decrease sharply due to the damage between the emitter and the base. Under the influence of static electricity, the indicator itself or the IC on the driver circuit may not cause immediate functional damage. These potentially damaged components usually appear in the process of use, so the impact on the life of the display is fatal.
As mentioned earlier, your friends analyzed the causes and hazards of LED electronic screen static electricity. I believe you know enough. I hope the above can inspire you.
WhatsApp