How does touch screen works in smartphone? Touchscreens In A Nutshell Although touchscreens are becoming increasingly popular, they are by no means a new invention. The first touchscreen was invented back in the 1960s, and has gone through many changes and iterations to become the touchscreen we use today. Touchscreens are not limited to smartphones and tablets, they are literally everywhere; from ATM machines, point-of-sale terminals, and navigation systems, to game consoles and even touchpads on laptops. Touchscreens are popping up everywhere, and are slowly taking over our lives, so the least we can do is know a bit more about how they work! Capacitive touchscreen As opposed to the resistive touchscreen, which relies on the mechanical pressure made by the finger or stylus, the capacitive touchscreen makes use of the electrical properties of the human body. A capacitive screen is usually made of one insulating layer, such as glass, which is coated by a transparent conductive mat
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