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Clean the Infrared Tube
The interactive touch screen uses the horizontal and vertical infrared matrix to detect
and locate the user's touch. The screen is surrounded by an infrared tube (including
the infrared acceptor and emitter), which forms an infrared net covering on the screen
surface. When a user touches the screen, fingers or other opaque objects block the
infrared rays that cross the touch point, which helps the controller detect the coordinate
position of the touch point.
Dust is easily retained on the screen surface due to its long-term exposure in the air
and causes ineffective touch or inaccurate positioning. Therefore, you need to clean the
infrared tube around the screen regularly.
Infrared Tube
