How do smartphone touchscreens work?

Опубликовано: 03 Август 2024
на канале: vt.physics
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A capacitive phone screen operates by detecting changes in an electrical field created by a transparent conductive layer integrated into the glass surface. When a finger, which is conductive, touches the screen, it disrupts this field, causing a change in capacitance at the contact point.

The device's system measures these changes and calculates the precise coordinates of the touch, which the processor then interprets as a command.

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