In the cold and dry winter, we often encounter such a phenomenon in our daily life: when we undress and sleep at night, we often hear the squeak accompanied by blue light in the dark. When we meet and shake hands, our fingers will suddenly feel when we touch each other. The thorns on the fingertips were stinging and terrifying. When you comb your hair in the morning, your hair will often "float". The more messy you are, the more you pull the doorknob, the faucet will be "electrically shocked" and often make a "pop, pop" sound. This is the static electricity that occurs in the human body. The so-called static electricity is an electrostatic charge or non-current charge. It can be said that static electricity is everywhere. In the process of using the LCD splicing screen, static electricity will also cause certain interference.
Static electricity is the law of nature. We can't completely eliminate it, so all we can do is to minimize the damage to the big screen. Usually in the process of debugging the LCD splicing screen, when there are multiple ripple lines on the display, most of them are caused by static electricity interference; static electricity absorbs dust, reduces insulation resistance, discharge damage causes component damage, and discharge generates electromagnetic interference Such hazards, and many of these hazards are long-term random. When the static electricity around the working environment of the splicing screen is relatively large, it may cause certain interference to the video signal, and may damage the chip at the interface of the splicing system, and may even seriously affect the display effect of the splicing system. big screen. In addition, LCD splicing screens may cause abnormal behaviors, such as unstable signal transmission and screen flickering during customer use. In addition to the loosening of the line interface and the cable manufacturing process, it may be electrostatic interference. If there are high-voltage cabinets, computer rooms, capacitors, resistors and other large circuit components, you must pay attention to this uncontrollable factor when providing LCD splicing screen installation solutions.
In order to minimize the static electricity interference caused by the LCD splicing screen during the installation process:
1. Insulation. The so-called insulation is to glue the LCD splicing screen as much as possible to the place where the metal and the power supply are connected, which can effectively prevent the generation of static electricity.
2. The line is separated from the line. When wiring, separate the VGA cable from the power cord. Since the ordinary VGA cable has no shielding layer, it is easy to generate static electricity when used with the power cable.
3. Grounding. The so-called grounding refers to the direct release of static electricity to the ground through a wire, which is the most direct and effective way to prevent static electricity.
