Nexio's IR Touch Frame

Version imprimable

Nexio’s new infrared touchscreen is a touch frame installed in front of a display screen, integrated with a printed circuit board containing a line of IR-LEDs and photo transistors hidden behind the bezel of the touch frame. All the IR-LEDs and photo transistors are hidden behind an invisible infrared light. The bezel shields the parts from the operational environment while allowing IR beams to pass through.

The infrared touchscreen controller sequentially pulses LEDs to create a grid of IR light beams. When a user touches the screen, the grid is interrupted by a stylus which affects the IR light beams. The photo transistors from X and Y axes detect the IR light beams which have been interrupted and then transmit exact signals that identify the X and Y axes coordinates to the host, enabling practically perfect positioning of the cursor or positioning element.

Nexio has developed multi-point touchscreen solutions that allow multiple inputs at any one time, permitting a user to interact with the system with more than one finger, allowing for the use of both hands, unlike most current common single-point touchscreens.