FAQ

Why can infrared screen touch one function become mainstream?

Source: KONWHAI TOUCHAuthor: KONWHAI Date: 2020-05-07 Click:

  •      The touch all-in-one machine integrates advanced touch screen, industrial control, computer and other technologies, and can realize public information query. As an input device, the touch screen used has many advantages such as ruggedness, fast response, space saving, and easy communication. Since the development of touch one machine, it has been widely used in various fields.
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  •      According to different application fields, the functions are also different, which can be divided into: teaching touch all-in-one, conference touch all-in-one, query touch all-in-one, display touch all-in-one, etc., and other such as: touch printing all-in-one Line up to call the number machine, touch the advertising machine, etc. Users only need to touch the screen of the machine with their fingers to quickly get the information they want, thus making the human-computer interaction more straightforward.
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  •      As a high-tech machine, the touch all-in-one machine has gradually replaced the status of a simple touch screen, allowing users to truly feel the characteristics of human-machine interaction. The touch-control all-in-one machine truly achieves the function of integrating touch and control, greatly improving people's work efficiency. The touch screen is an important part. Among the many manufacturers of touch screen all-in-one brands known on the market, most of the LCD touch all-in-one manufacturers use infrared touch screens. So, why can infrared screen touch one function become the mainstream of the market?
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  • Why can infrared screen touch one function become mainstream?
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  •   Analysis of touch screen of touch one machine: 
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  •      For touch technology, there are currently four types: resistive touch, capacitive touch, infrared touch, surface acoustic wave touch, etc. The four touch screen technologies have different principles and have different advantages and disadvantages. Among them, the resistance technology touch screen is accurately positioned, but its price is quite high, and it is afraid of being scratched; the surface acoustic wave touch screen solves the various defects of the previous touch screen, and it is clear and not easy to be damaged. Water droplets and dust can make the touch screen dull and even not work. Therefore, resistive touch and surface acoustic wave touch are not widely used.
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  •      As for the capacitive touch screen, it is a transparent relative positioning system. First of all, it must be transparent. The achievement of transparency is solved by the advanced material technology. The second is that it can give the relative coordinates of the finger touch, and the mouse belongs to the relative positioning system. The characteristic of the relative coordinate system is that the coordinates of each positioning have nothing to do with the coordinates of the previous positioning. The touch screen is physically an independent coordinate positioning system, and the position of each touch is converted into the coordinates on the screen. In terms of technical principles, it is undoubtedly the highest level of the four touch screens. Due to the immaturity of touch technology at present, it is far from meeting the application requirements of technical principles, and can only be applied to small-size touch screens. For example, our mobile phones use capacitive screen touch.
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  •      The sensitivity and accuracy of capacitive screens are better than infrared touch screens, and the lack of technical level leads to the application of capacitive screens in large sizes, the cost is too high, there is no market according to it, and capacitive screens are easily affected by the environment Therefore, the capacitive screen is not too suitable for touch one machine industry.
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  •      Finally, let's talk about infrared touch. The infrared touch screen utilizes the infrared matrix densely distributed in the X and Y directions to detect and locate the user's touch. The infrared touch screen is equipped with a circuit board frame in front of the indicator, and the circuit board is arranged with infrared emitting tubes and infrared receiving tubes on the four sides of the screen, and one-to-one corresponds to an infrared matrix crossing horizontally and vertically. When the user touches the screen, the finger will block the two infrared rays in the horizontal direction, so that the position of the touch point on the screen can be either or or determined. The external touch screen is a highly integrated electronic road integrated product. The infrared touch screen includes a complete integrated control circuit, and a set of high-precision, anti-interference infrared transmitting tubes and a set of infrared receiving tubes. The cross device is in two opposite directions on the highly integrated circuit board to form an invisible infrared Raster. The intelligent control system embedded in the control circuit continuously pulses the diode to form an infrared polarized beam grid. When a touching object, such as a finger, enters the grating, the beam is blocked. The intelligent control system will detect the loss of light and transmit the flag lights to the control system to confirm the X-axis and Y-axis coordinate values.
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  •      The technical level of infrared touch screens has been mature and stable. It can be made into large size or small size in terms of size, with great flexibility. Its touch sensitivity and touch accuracy are second only to capacitive screens. There is no pressure when writing with a pen, no drift when touched, and continuous lines are drawn. Its use is little affected by the environment, not afraid of wind and rain, and is not affected by light. Moreover, the infrared touch screen can achieve true multi-point touch. At present, the infrared screen touch all-in-one machine produced by TouchPad Electronics can support up to true 10-point touch.
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  •      Also, the use of infrared touch screens is not restricted by touching objects, and any object can be touched. For example: the human body current sensing of the capacitive screen, if you use other objects to touch, there will be no reaction at all. The infrared touch screen is generated by infrared light color infrared technology. As long as the object touches the infrared, it can be touched.
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