how can touch screen distinguish my finger from other objects touching it?
In: 7
Short version: It can’t
Long version: It depends.
If you look at a phone / tablet/… screen than it will only detect “flesh” or skin.
It won’t be able to detect something like you wearing a glove, a metal object,…
This is because of the type of touch screen that is used, it can “sense” the electric/ magnetic field that your finger has (Inductive/capacitive screen).
In an industrial setting (e.g. where gloves are required) we use a “Resistive screen” this will detect anything.
Because it uses the difference in electricity that is generated from crystals in the screen when they get pressed on ( by you, a metal object,…).
Latest Answers