What is a feature of infrared heat touch screens?

Infrared heat touch screens utilize infrared sensors to detect touch. These screens work by emitting infrared light from multiple emitters along the edges of the display. When a finger or object touches the screen, it disrupts the infrared light beams, allowing the system to determine the location of the touch. This mechanism relies on the heat generated by the finger, thus making the screen sensitive to touch without the need for direct pressure or contact with the screen surface.

While some touch screens might be made of plastic and may offer multitouch capabilities, those characteristics are not unique to infrared heat touch screens. The requirement of pressure is also inconsistent with how this technology operates, as it can detect touches without pressing down hard on the screen.