IRMTOUCH INC. IRMTTII Manual Do Utilizador

                     

MANUAL FOR IR TOUCH SCREEN 

                       Shanghai IrmTouch Inc.                  

www.irmtouch.com

 

 

Contents 

¾ Theory 
¾  Quick Install Guide 
¾ FAQ 
¾ Maintenance 

Infrared technology relies on the interruption of an IR light grid in front of the display screen. 

The touch frame or opto-matrix frame contains a row of IR-light emitting diodes (LEDs) and photo 

transistors, each mounted on two opposite sides to create a grid of invisible infrared light. The 

frame assembly is comprised of PCBs on which the opto electronics are mounted and are 

concealed behind a IR-transparent bezel which shields the opto’s from the operating environment 

whist allowing the IR beams to pass through. When touching the screen one or more of the beams 

are obstructed resulting in an X and a Y coordinate being sent to the control electronics to indicate 

the exact touch point. 

 

 

1. 

Put the four sides of the touch frame in accordance with the order A, B, C, D corresponding in order.