Capacitive technology Touch screen is the use of human body current sensing capacitive touch screen is a four-layer composite glass screen, the inner surface of the glass screen and the interlayer coated with a layer of ITO, the outermost layer is a thin layer of silica glass protective layer, Interlayer ITO coating as a working surface, the four corners of the four leads to the inner layer of ITO shielding to ensure a good working environment When the finger touches the metal layer, due to the human body electric field, the user and the touch screen surface to form a coupling Capacitance, for high-frequency current, the capacitor is a direct conductor, so the finger sucked a small current from the contact point of this current points from the touch screen on the four corners of the electrode out of the electrode, and the current flowing through these four electrodes and fingers To the four corners of the distance is proportional to the controller through the precise calculation of the four current ratio, come to the location of the touch point
Hangzhou Kaike Electronics Co., Ltd.
Address: No. 2. Dadi Road, Haining Agricultural External Development Zone 314408,
Contact Person: May Wong
Telephone: 86-571-86830690 Fax: 86-571-86687367
Cell Phone: 86-15158112598