Capacitive Touch Screens:  
The operational principle of the projected interactive touch screens: There are two layers of the ITO layer under the surface of glass. This ITO interactive touch screens respectively forms the electric field of X axis and Y axis, which can keep balance by crossing the surface of the class. Once the fingers approach the glass surface, the fingers and the electrode X axis or Y axis will form a new electric field, which can make the local interactive touch screens capacitance change. Then the controller will determine the location based on capacitance changes. multi touch Capacitive touch screen is very different with traditional resistive touch screen. When the resistive touch screen works, you can only judge a touch point. And if there are two or more touch points, you can not make the right judgments. So the interactive touch screens applies only to judge a few simple actions such as click, drag and drop. The interactive touch screens can decompose the user's touch into colleting multi-point signal and determining the significance of the signals, and complete the judgments of complex action. Moreover, you can feel it when you lightly touch the projected capacitive multi touch sensor panel. Better durability, more than 90% light transmission rate, high transparency than the traditional resistive touch screen are the advantages of our products.