27 Inch 10 Points Capacitive Pcap Open Frame Touch Screen Monitor

Capacitive touch monitor technology is a touch screen technology that works by utilizing the current sensing of the human body. Capacitive touch screen is a four-layer composite glass screen, the inner surface of the glass screen and the interlayer is coated with a layer of ITO, the outermost layer is a thin layer of silica glass protective layer, the interlayer ITO coating as a working surface, four corners of the four electrodes, the inner layer of ITO for the shielding layer to ensure a good working environment. When the finger touch in the metal layer, due to the human body electric field, the user and the surface of the touch screen to form a coupling capacitance, for high-frequency current, capacitance is a direct conductor, so the finger from the point of contact to suck a very small current. This current flows from the electrodes on the four corners of the touch screen, and the current flowing through these four electrodes is proportional to the distance from the finger to the four corners of the controller through the precise calculation of the ratio of the four currents to arrive at the location of the touch point. Capacitive touch monitor technology can achieve 99% accuracy with a response time of less than 3ms.