Classification of capacitive touch screens

Time：

2022-08-18 16:43

Capacitive touch screens are divided into surface capacitive touch screens and projected capacitive touch screens.


1 Surface capacitive touch screen

The commonly used surface capacitive touch screen has simple working principle, low price and simple circuit design, but it is difficult to realize multi-touch.

 

2 Projected capacitive touch screen

Projected capacitive touch screen with multi-finger touch function. These two capacitive touch screens have the advantages of high light transmittance, fast response, and long service life. The disadvantage is that with the change of temperature and humidity, the capacitance value will change, resulting in poor working stability and frequent drift. The screen needs to be calibrated frequently and cannot be touched with ordinary gloves.

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