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How do touch screens work?

In: Electrical Wiring, Technology [Edit categories]

Answer:

There are two main technologies for touch screens these days: resistive and capacitive. Resistive touch screens work by pressing a sheet of plastic against a conductive material underneath and recording the position at which this occurred. Capacitive touch screens work by having a layer that stores electrical charge on top of a sheet of glass, and recording when some of the energy from the glass is transferred to the user.

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