Collection: Infra Red (IR) Touch

In an infrared touchscreen, the screen is lined with infrared light-emitting diodes (LEDs) and photodetectors that form a grid of infrared light beams across the screen. When an object, such as a finger, touches the screen, it blocks some of the beams, and the location of the touch is detected by the photodetectors.

All of these technologies require the touch of a finger or special stylus to work, as they detect changes in electrical properties on the surface of the screen.

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