32 inch touch screen all in one computer.Differentiating touch screens from technical principles can be divided into five basic types: vector pressure sensing technology touch screens, resistive technology touch screens, capacitive technology touch screens, infrared technology touch screens, and surface acoustic wave technology touch screens. Among them, the vector pressure sensing technology touch screen has exited the stage of history , so this article only studies the latter four . Touch screen infrared screen is cheap, but its frame is fragile, it is easy to produce light interference, and it is distorted under curved surface. The design of capacitive screen is good, but its image distortion problem is difficult to be solved completely. The positioning of resistive screen is accurate, but its price is quite High, and afraid of scratching and vulnerable. The surface acoustic wave touch screen solves various defects of the previous touch screen, is clear and anti-riot, and is suitable for various occasions. The drawback is that water droplets and dust on the screen surface can make the touch screen dull or even not work. The following describes the above types of touch screens:

32 inch touch screen all in one computer.Differentiating touch screens from technical principles can be divided into five basic types: vector pressure sensing technology touch screens, resistive technology touch screens, capacitive technology touch screens, infrared technology touch screens, and surface acoustic wave technology touch screens. Among them, the vector pressure sensing technology touch screen has exited the stage of history , so this article only studies the latter four . Touch screen infrared screen is cheap, but its frame is fragile, it is easy to produce light interference, and it is distorted under curved surface. The design of capacitive screen is good, but its image distortion problem is difficult to be solved completely. The positioning of resistive screen is accurate, but its price is quite High, and afraid of scratching and vulnerable. The surface acoustic wave touch screen solves various defects of the previous touch screen, is clear and anti-riot, and is suitable for various occasions. The drawback is that water droplets and dust on the screen surface can make the touch screen dull or even not work. The following describes the above types of touch screens: IQTouch K interactive touch screen feature 20-point touch and dual system -- Android 8.0 system and optional OPS Windows 10Pro system. Its 4K UHD resolution facilitates presentations and collaboration. With optional multi-screen casting software, IQClass 6.0 and installation-free IQClass Plus software, IQTouch K Series can help create an interactive and collaborative teaching atmosphere in class.