An Optical Touch panel has two optical sensors with two reflectors and a light source (LEDs).  When an object interrupts the infrared light, the two optical sensors will detect the movement of any object on the screen.  The controller can calculate X and Y and then send the position to the computer.

BenefitsTouch-OT

  • 100% light transmission since ther is no overlay covering the display screen
  • Accurate
  • Suitable for large LCD
  • Low Cost