Tip:Difference between resistive and capacitive touch screen.

There are several touchscreen technologies available in the market these days. Out of them 2 are very popular with mobile phones and PDA’s . “Resistive”  and “Capacitive” touch screen.

Resistive touchscreenare comparatively lower in price than active touchscreens. They are built with two flexible sheet coated with a resistive material and separated by microdots or air gaps. when pressed the sheets come in  contact and register the contact location. Resistive technology works great with screens mostly used with stylus or any pointing object. But not very efficient in registering the pin point location when used with finger.

Capacitive touchscreen on the other hand is a glass surface coated with transparent conductors like  indium tin oxide . As the human body is also a conductor, touching the screen with finger creates a electrostatic field, measurable as a change in capacitance. This location is then registered and action is made.

Most of the new touchscreen available in the market are now equipped with Capacitive touchscreen (pretty much all android and Apple phones).

iPad,iPhone,iPod, Android Phones,Nokia N97 and All New touch screens with multi touch  have touch screens which are capacitive or something more superior than that.