touch screen turn off display.The infrared touch screen is densely arranged in the X and Y directions in front of the screen, and the infrared touch screen is continuously scanned to detect whether infrared is blocked by an object and locate the user's touch. As shown below :

touch screen turn off display.The infrared touch screen is densely arranged in the X and Y directions in front of the screen, and the infrared touch screen is continuously scanned to detect whether infrared is blocked by an object and locate the user's touch. As shown below : 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.