Infrared IR Touch Screens

Infrared touch screen technology (IR touch screen) is a technique that works on optical position detection. The infrared technology is ideally suited for use in harsh operating conditions and outdoor kiosk applications.

It's the only technology that doesn't require a glass pane or a substrate for touch recognition, which means there's no physical wear and tear on the touchscreen.

An infrared touch screen is characterized by a fast and accurate response and can be operated with a finger, glove or a stylus (except for a very thin pen).

Structure

The relatively simple principle of the IR touch sensors is based on infrared LEDs integrated in the frame of the pane in conjunction with opposing photo-transistors and works similarly to a light barrier.

A touch blocks an infrared beam at a certain point and thus does not reach the detector at the edge. The controller detects this blockage and can calculate the position based on the X and Y axes.

If necessary, the IR Touchscren can be sealed against unwanted dirt.

Advantages of infrared technology

This technology has the great advantage that the screen can be equipped with any protective glass, even bulletproof glass, without any restrictions in operability.

Thus, it is possible to produce an almost completely vandal-proof touchscreen, which can also be operated universally.

The IR technology is extremely robust and also works in the increased temperature range. Vibration and shocks do not cause interference.

Very large display sizes can also be realized, which is often an obstacle with other technologies

All advantages at a glance:

  • Suitable for harsh operating conditions
  • Heavy-duty glass surface
  • best optical transparency
  • Light transmittance up to 90-92%
  • Adaptation to changing lighting conditions
  • no parallax on LCD displays
  • operable with any media
  • easy waterproof integration due to fixed metal frame
  • sealable against dirt
  • large display sizes possible

Infrared touch screens are used in many industries, such as

  • Medical
  • Food industry
  • Slot machines
  • ticket vending machines,
  • Vehicles
  • Large plasma displays,
  • Military applications.