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How do touchscreens work?

Question #152079. Asked by ozzz2002.
Last updated May 02 2025.
Originally posted May 01 2025 5:44 PM.

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1nn1 star
Answer has 3 votes
Currently Best Answer
1nn1 star
13 year member
189 replies avatar

Answer has 3 votes.

Currently voted the best answer.
Two main ways:
1. They detect changes in electrical fields or by
2. Measuring pressure on the screen's surface.
Capacitive screens use a coating that is conductive with electrostatic fields which can detect touch.
Resistive screens use two metallic layers with spacers between them that when touched, make contact.

link https://www.iop.org/explore-physics/physics-around-you/technology-our-lives/touchscreen

May 02 2025, 3:00 PM
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