Victronix Company Limited

Add:Room 301,Tian Kai Sheng Business Building, Block 25, Red Flower Middle Road, Guangming District

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Capacitive Touch Screen Sep 12, 2016

Capacitive touch screen technology is the use of the body's current work on induction. Capacitive touch screen is a four-layer composite glass, and laminated on the inner surface of the glass screen is coated with a layer of ITO, the outermost protective layer is a thin layer of silica glass, sandwich ITO coatings as a face, led to four electrodes on the four corners, ITO the inner shielding to ensure a good working environment. When the fingers on the metal floor while, body electric, the user and the touch-screen surface with a coupling capacitor, high frequency current, capacitance is a direct conductor and finger suck a small amount of current from the contact point. Respectively the current outflow from the touch screen on the horns of the electrodes, and flows through this four-electrode current is proportional to the distance to the four corners and finger, the controller through the accurate calculation of the four current, come to the location of the touch point.