OLED Module technology and development with echoes, OLED drive also plays an increasingly important role. Not only from the low duty cycle increases to support high duty cycle, and the application of such a control current for each RGB, wider IC operating temperature (-45 to 80 ℃), the internal DC-DC boost, as well as graphics acceleration instruction and some other features.
2013年7月1日星期一
Electrostatic Hazard Control Methods oled module
Electrostatic hazard control methods can be divided into the ground, increase the humidity, the speed limit, antistatic materials, static eliminator with other five. Industrial manufacturing process, due to the operating environment, procedures and different materials, electrostatic hazards implemented control methods will be different. Site selection process must consider the environment, conditions and limitations, and even funding, management systems and quality of human resources and other factors. Without an electrostatic hazard control methods can be applied to all industrial processes or situations, sometimes while using two or more kinds of electrostatic hazard control methods.
(A), grounding electrostatic hazards control methods, the ground is the most effective and economical method. The manufacturing process due to friction, such as induction or conduction means static, if the OLED Display Module charge accumulation in the insulation of metal equipment, products or persons conductive body, the charges accumulated in a discharge energy will be released. Such electrostatic discharge to occur mainly due to electrostatic hazards incident. The control method is to all electrically conductive objects are grounded, and maintain a low resistance to ground, the device will be stored in a metal, a conductive body of the product or charges on personnel quickly dissipated to the earth, in order to avoid accidents of electrostatic hazards. According to the relevant studies have shown that the presence of flammable vapors in the general workplace, insulated metal equipment / components, conductive products or personnel potential of the body itself must reach 100V or more, as may be due to the discharge and ignite surrounding combustible substances. Therefore, the plant will be insulated metal devices / components, a conductive ground the products to keep the ground resistance of less than 106Ω, the charge accumulation is sufficient to rapidly dissipated to the earth, but will itself electrostatic potential drops below 100V, to avoid electrostatic hazards incident occurred. Graphic LCD Display
(Two), increase the humidity to increase operating environment relative humidity of air, in the current manufacturing process of traditional industries is a common electrostatic hazard control methods. In high humidity (RH> 65%) environment, if the surface of the material is hydrophilic, is easily adsorbed moisture in the air, thereby reducing the surface resistance value of the material, increasing the rate of charge dissipation, minimize the degree of the charge accumulation . Such substances include cotton, paper and cellulose acetate. Factories manufacturing process often use humidifiers, watering the ground, or water vapor spray and other methods to increase the operating environment in the air relative humidity. If the non-hydrophilic surface of the material, the easy absorption of moisture in the air, causing not reduce the surface resistance value of the material and therefore can not increase the rate of charge dissipation. Such materials include synthetic polymers such part: ABS (Acrylonitrile-Butadiene-Styrene, Acrylic month Green - butadiene - styrene), Teflon (Teflon, fluorocarbon polymers), etc. Such high water repellent material needs to 80% relative humidity, or 90%, to effectively reduce the surface resistance value of the material, to minimize the degree of the charge accumulation.
(Three), antistatic material substance manufacturing process will be through the accumulation of static electricity dissipation pathways to the earth. If the conductive path is an insulating material (low conductivity) is static dissipation rate, if a conductive material conductive path (high conductivity) the electrostatic dissipation rate. Material surface resistivity less than 1011Ω/m2 or volume resistivity less than 1010Ωm, to avoid excessive accumulation of electrostatic material. Such substances called antistatic material. But containing flammable substances in the workplace, the antistatic material surface resistivity must be less than 108Ω/m2 or volume resistivity must be less than 106Ωm. For industrial processes using a variety of materials, via the following methods to make it antistatic material: the material itself has a static capacity (such as: cotton, wood, paper and soil, etc.) coated on the surface of the insulating material is antistatic material (such as toner, antistatic agents), the insulating material added during manufacturing a conductive or antistatic material (such as toner, a metal, an antistatic agent, a conductive fiber, etc.).
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