With the rapid development of smart devices, industrial automation, automotive electronics, medical equipment, and new energy charging infrastructure, touchscreens have gradually expanded from consumer electronics into more complex application environments. Among these, capacitive touchscreens have become one of the most widely used touch technologies today, thanks to their high sensitivity, fast response times, support for multi-touch, and flexible design.



On the surface, users need only lightly tap the screen with their fingers to operate the device. However, behind this simple action lies a complex interplay of multiple technical components, including capacitive sensing, sensor electrodes, touch control ICs, signal acquisition, algorithmic processing, and anti-interference measures. Particularly in industrial, outdoor, medical, and automotive environments, ensuring that touchscreens maintain an accurate and stable touch experience under complex conditions has become a key focus in the development of capacitive touchscreen technology.