Technology Behind Infrared Touch Displays
Infrared touch displays operate by embedding a frame around the screen that contains infrared LEDs and photodetectors. These components work together to create an invisible grid of infrared light beams across the surface of the display. When a user touches the screen, their finger or any other object interrupts the light beams at specific points. The photodetectors then identify the exact location of the interruption by detecting which beams have been broken. This information is processed to determine the precise coordinates of the touch event. One of the key advantages of infrared touch technology is its ability to detect multiple touch points simultaneously, enabling multi-touch functionality. Additionally, because the technology does not rely on the physical pressure of a touch, it can be used with a variety of input methods, including fingers, gloves, or styluses. Infrared touch displays are also known for their high durability, as they do not require a touch-sensitive layer on the screen itself, reducing the risk of wear and tear over time.