Whether you are walking in the square, or exercise in the gymnasium, LED display can be seen everywhere. LED products in a wide range of applications, to bring convenience to people at the same time, will bring some problems: a lot of LED display appears dead or not bright, mostly LED display electrostatic problems. Then how to protect the LED display anti-static it?
LED display causes static electricity:
From the microscopic point of view, according to the theory of atomic physics, the material is neutral in the electrical balance state, due to the contact of different substances produced electrons gains and losses, so that the material lost electrical balance, resulting in electrostatic phenomena. From the macroscopic point of view, the reasons are: friction between objects, excited electron transfer; contact and separation between objects produce electron transfer; electromagnetic induction caused by the surface of the object charge imbalance; friction and electromagnetic induction of the combined effect.
The electrostatic voltage is generated by the contact and separation of the different species of matter. This effect is known as the friction of the electrification, the voltage generated by the friction between the material itself depends on the characteristics. As led large screen in the actual production process is mainly the human body and the relevant parts of the direct contact with the indirect contact with static electricity.
LED display how to prevent static electricity:
1) Training of static electricity and related technologies for the use of static-sensitive circuits.
2) the establishment of anti-static work area, in the area using electrostatic floor, anti-static workstations, anti-static grounding lead and anti-static appliances, and the relative humidity control in 40 or more.
3) Electrostatic damage to electronic equipment may be released from the manufacturer to any place in the field equipment. Hazards are caused by insufficient and effective training and equipment malfunctions. LED is sensitive to static equipment.
4) ESD Damaged devices can show dim, blurry, off, short or low VF or VR. ESD damage to the device should not be confused with electronic overload, such as: due to erroneous current design or drive, wafer mount, wire shielded ground or package, or normal ambient induced pressure.
5) ESD security and control procedures: Most electronic and electro-optics companies are very similar to ESD and have successfully implemented the ESD control, manipulation and main program of the device. These procedures have been used by ESD for ancient instruments that have been used to detect quality effects. ISO-9000 certification also included him in the normal control procedures.
LED display production process is a very rigorous, subtle process, each link can not be missed. Electrostatic protection of the display is also an important part of LED display production, in the production of LED display, we must do anti-static measures to ensure product safety!