Capacitive technology Touch screen The CTP (Capacity Touch Panel) uses the current sensing of the human body. The capacitive screen is a four-layer composite glass screen, with the inner surface sandwich coated with one layer of ITO (nano indium tin metal oxide), and the outermost layer being only 0

After the capacitive touch screen receives the touch signal, it converts the touch data into an electric pulse and transmits it to the touch screen control IC for processing. The signal is first amplified by a low-noise amplifier (LNA), then amplified by analog-to-digital conversion and demodulation