Knowledge about static electricity oled module

I. Introduction Although the earliest electrical electrostatic effect is experimentally proved out, but in the modern industrial system Cheng Zhongjing electricity still be regarded as "undetermined." General industry on the electrostatic hazards prevention techniques can be quite strange, and often takes quite a lot of misunderstanding or misuse prevention methods without realizing that failed to prevent electrostatic damage accident. In most industrial processes in the accumulation of electrostatic charge is generated, ranging from people feel uncomfortable, heavy cause harm to humans, even in the flammable gas, liquid and dust handling and transportation process, resulting in fire and explosion . In particular, with electrostatic potential hazards in certain industries such as: chemical, oil, paint, plastics, pharmaceutical, food, printing and electronics industries, prone to electrostatic hazards arise.
Second, the generation of electrostatic hazards. In the working environment, all fire and explosion due to static electricity incidents have followed the same procedure, as follows: First, charge separation occurs, then the charge accumulation, if the charge can not be dissipated, electrostatic discharge will occur, but may ignite surrounding Yi flammable substances, fire and explosion hazard events occur. Many industrial processes often use very poor conductivity of the material, and often surface contact, separation and movement of the operation, resulting in the phenomenon of charge separation. For example: high resistance value of liquid flow or filtration, powder grinding, mixing or screening process, powder pneumatic transport, personnel or vehicles moving on the floor insulation, conveyor belts or flaky material on the rollers of movement, etc. . In the above or similar process occurs in both static problems. When the charge accumulated on the object to the electric field of the dielectric strength of air 3MV / m when the discharge phenomenon is generated, the whole or part of its stored energy is released to form a discharge path for light and heat, and may ignite explosive substances. According to the minimum ignition of flammable substances energy data can be extrapolated electrostatic discharge energy is sufficient to ignite the flammable substances. OLED Display
Recently, because the parts are many devices using a non-conductive plastic, so that a portion of the device of metal components, components, piping, vessels or structures form an electrical insulator, resulting in the gradual accumulation of charge to a dangerous level. Typical examples include: the plastic piping installation metal funnel, a metal pipe on the road due to certain non-conductive gasket leaving metallic pipe insulation, insulation for wearing shoes or person standing on the floor leaving the body is insulated insulation. Accumulated on the insulated conductor a charge generation discharge, all of the energy will be released in a discharge, such spark discharge is called electrostatic discharge. In general, the spark discharge can ignite flammable gases, vapors and dust clouds. The surface of the insulating charge rate of movement is very slow, however, the duration of ESD extremely short, so the electric charge accumulated in the insulating body, not in one-time release all electrostatic discharge, which may be in the neighborhood of the insulating surface area of ​​occurrence multiple electrostatic discharge. Because the geometry of the charge and the surrounding environment of the different firing patterns can be divided into: corona discharge, brush discharge, as well as radially discharging three. In general, the energy is greater than the brush corona discharge. Brush-like discharge energy sufficient to ignite flammable gases many, solvent vapor and mixtures thereof. As a non-conductive film on both sides full positive and negative electric charges in the accumulation significant amount of charge, if the discharge occurs radially most of its energy is sufficient to ignite the combustible gas and combustible dust. In a large silo or container full of highly charged particles occurs at the surface of the product discharge radial manner, known as bulk powder piled electricity. If flammable gases or has a low minimum ignition energy of dust clouds exist, then there is even a big potential hazards, it is necessary to try to exclude a large powder piled electricity generation. graphic lcd modules