Technical specifications of capacitive touch screen

Accuracy: 99% accuracy.
Material: Fully scratch resistant glass material (Mohs hardness 7H), not easily scratched or worn by sharp objects, and not affected by common sources of pollution such as water, fire, radiation, static electricity, dust, or oil. It also has the eye protection function of goggles.
Sensitivity: It can sense with less than two ounces of force and respond quickly with less than 3ms.
Clarity: Three surface treatments (Polish, Etch, Industrial) are available for selection. The MTBF of the SMT controller is greater than 572600 hours (per MILHANDBOOK-217-F1).
Touch lifespan: Any point can withstand more than 50 million touches, and the cursor will not drift after one calibration.
Capacitive touch technology is a touch technology that utilizes the capacitance changes generated when fingers approach a capacitive touch panel. Capacitive touch has two important capacitance parameters, one is the induced capacitance between the finger and the upper sensing material (such as ITO), and the other is the parasitic capacitance between the sensing materials (such as ITO upper and lower layers) or between the sensing material and the optical panel (such as ITO and LCD).
Parasitic capacitance is generated between conductors, and when a finger conductor approaches a sensing conductor with different voltages, induced capacitance changes also occur. The capacitance sensing effect is how to detect 0 at larger parasitic capacitance values (30 picoFarad; pF). 1-2 pF units of small induced capacitance changes. Capacitive touch technology is relatively stable and reliable. By utilizing the characteristic that the human body is a capacitive body, the capacitance changes generated when contacting the touch panel achieve the sensing touch effect. Atmel Marketing Director Christopher Ard pointed out that sensor designs can be single-sided ITO graphics for the lowest functional interfaces, such as single touch points for large virtual buttons, sliders, and other applications. However, the more common implementation is a two-layer design (separate X and Y layers), which requires higher complexity in performance and accuracy.