Nowadays, mobile phones use projection capacitive screens, which divide the touch sensing panel into zones and receive current signals separately in each area, achieving multi finger control. When water droplets stick to the screen, they can also form coupling capacitance. If it is a non projection capacitive screen, touch control will be affected; But if it is a projection capacitive screen, as long as the water droplets do not fully cover all areas, the screen can operate normally.
Interestingly, the sensing range of the touch panel is within two centimeters, so theoretically, if the conductivity of the phone film is good, even if 10 layers of film are applied, it can be touched normally. But both soft film and tempered film are designed to prevent scratches or falls, so the conductivity is usually not very good. Due to the thin thickness of mobile phone film, it will not have any impact on use. The fiber structure of gloves itself has insulation properties, so wearing gloves means you can no longer operate a mobile phone. So what other knowledge do you know about touch screens?
