FAQ

What is the infrared touch screen and how it works?

Source: KONWHAI TOUCHAuthor: nick Date: 2018-12-25 Click:

  •      The infrared technology touch screen is composed of infrared emitting and receiving sensing elements mounted on the outer frame of the touch screen, and an infrared detecting net is formed on the surface of the screen, and any touch object can change the infrared rays on the contacts to realize the touch screen operation.
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  •      So, what is the infrared touch screen and how it works? KONWHAI Xiaobian answers for you.
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  • What is the infrared touch screen and how it works?
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  •   Infrared touch screen works  
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  •      Principle: The infrared matrix densely packed in the X and Y directions is used to detect and locate the user's touch. The infrared touch screen is provided with a circuit board outer frame on the front side of the display, and the circuit board arranges the infrared emitting tube and the infrared receiving tube on the four sides of the screen, one by one corresponding to the infrared matrix which is horizontally and vertically crossed.
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  •      When the user touches the screen, the finger blocks the two infrared rays passing through the position, so that the position of the touch point on the screen can be judged. The external touch screen is a highly integrated electronic circuit integration product.
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  •      The infrared touch screen includes a complete integrated control circuit, and a set of high-precision, anti-jamming infrared emission tubes and a set of infrared receiver tubes that are cross-mounted in two opposite directions on a highly integrated circuit board to form an invisible infrared Grating. An intelligent control system embedded in the control circuit continuously pulses the diode to form an infrared polarized beam grid.
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  •      When a touch object, such as a finger, enters the grating, the beam is blocked. The intelligent control system will detect changes in light loss and transmit signals to the control system to confirm the X-axis and Y-axis coordinate values.
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  •      Infrared touch screen products are divided into two types: external and built-in. The plug-in mounting method is very simple and is the most convenient to install on all touch screens, as long as the frame is fixed in front of the monitor with glue or double-sided tape.
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