How do touchscreens detect the position of your fingers?

Touchscreens know where your finger is by using special layers that react when you touch them.

Imagine you're playing a game on a tablet, and you press it, the screen knows exactly where you tapped! This happens because of two special layers inside the screen: one for seeing and one for feeling.

The feeling layer is like a blanket that can sense when something touches it. When your finger presses down, it changes how this layer works, just like when you press on a soft pillow, it squishes a little bit.

Then there's the seeing layer, which is like a picture made of tiny dots called pixels. These dots work together with the feeling layer to figure out exactly where your finger is. It’s like having two friends who both know something about the same secret, they can help find the answer faster.

When you lift your finger, the screen stops sensing it and goes back to waiting for your next move!