How does your phone’s touch screen work?

Question

It only registers when you touch it with your hand. Not with inanimate objects.

In: Technology

Answer 1

It detects contact by any things with similar electrical conductivity (technically it’s actually *capacitance*) to a finger. Contrary to your claim in the post, some inanimate objects DO work. Think of styluses for example. Electrical insulators like a piece of wood don’t work because they’re not conductive. But other materials do. Anything with similar conductivitycapacitance to a finger. That’s why raindrops on the screen can wreak havoc too.