With the increasing maturity of touch technology, touch machines have been widely used in commercial display, education, entertainment and other fields. The electronic touch devices for human-computer interaction are only a few inches, a dozen inches of computers, and a screen as large as tens of inches or even hundreds of inches. What are the touch methods of the touch screen all-in-one kiosk?
Several common touch technologies for touch screen all-in-one machines
At present, most of the screens used in all-in-one touch screens on the market are infrared touch screens. This technology has been developed earlier and the technology is relatively mature, so it is widely used. The other is a resistive touch screen, and the other is a surface acoustic touch screen. The above three different touch technologies have their own advantages and disadvantages. The following briefly introduces these three touch methods.
Touch screen all-in-one machine
1 Infrared touch screen technology
Most touch screen all-in-one machines use infrared touch technology. This infrared touch technology is close to the infrared matrix in the XY direction in the XY direction. By scanning the target, it can quickly locate the user’s touch point. , Make a quick response. There is a big difference between an infrared touch screen and a resistive touch screen. It puts the infrared lamp on the outer frame of the screen, so that the screen will be recessed and the outer frame will be raised.
The infrared touch screen has the advantages of high stability, good light transmission, and strong adaptability. Adding 4 mm tempered glass on the surface of the LCD screen can have the advantages of scratch resistance, anti-collision, and good performance. In addition, the infrared touch screen can also recognize the contact media on the touch screen, such as finger, pen, credit card and other input signals. As long as the object is touched, the screen can quickly respond to the touch point and give corresponding instructions and operations. And there are no special requirements for the objects in contact, with long life and long contact life.
2 Resistive touch screen technology
The resistive touch screen is parallel to the outer frame, and this kind of resistive touch screen is mainly realized by pressure response. Its advantages are high light transmittance, high transparency, high strength, good visual effects and linear insulation points. The resistive touch technology can recognize any input media such as fingers and pens, which is convenient and practical.
3 Surface acoustic wave touch screen technology
The surface acoustic wave touch screen can be touch controlled by touch points and sound waves. It is composed of a touch screen, a sound wave generator, a reflector, and a sound wave receiver. In this case, the sound wave can send high-frequency sound waves through the surface of the screen. When the finger touches the screen, the sound wave will be blocked by the finger to determine the coordinate position. The advantages of this sonic touch screen are long life, high resolution, good scratch resistance, and it is not affected by humidity, temperature and other environments.
Post time: Nov-22-2021