Infrared Touchscreen
An infrared touchscreen is an input device that uses infrared light beams to detect touch interactions on a display surface. It consists of an array of infrared LEDs and photodetectors arranged around the screen's edges, creating an invisible grid of light. When a finger or stylus interrupts the beams, the system calculates the touch point's coordinates for interaction.
Developers should learn about infrared touchscreens when building interactive kiosks, digital signage, ATMs, or industrial control panels, as they offer durability and high touch accuracy without requiring direct contact with the screen surface. They are particularly useful in public or harsh environments where resistance to scratches, liquids, and vandalism is essential, and they support multi-touch capabilities for complex applications.