interactive touch display for sale.Capacitive type touch technology is the application of current sensing technology for human work. When the finger touches the metal layer, the human body's electric field, the user and the touch screen surface form a coupling capacitance. For high-frequency current, the capacitance is a direct conductor, so the finger draws a small current from the contact point. From the electrodes on the four corners of the touch screen, the current passing through the four electrodes is proportional to the distance from the finger to the four corners. The controller calculates the position information of the touch point through accurate calculation of the four current ratios.

interactive touch display for sale.Capacitive type touch technology is the application of current sensing technology for human work. When the finger touches the metal layer, the human body's electric field, the user and the touch screen surface form a coupling capacitance. For high-frequency current, the capacitance is a direct conductor, so the finger draws a small current from the contact point. From the electrodes on the four corners of the touch screen, the current passing through the four electrodes is proportional to the distance from the finger to the four corners. The controller calculates the position information of the touch point through accurate calculation of the four current ratios. 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.