touch screen display 32.The working principle of the infrared touch screen is that infrared receiving tubes and infrared transmitting tubes are covered around the touch screen. These infrared tubes are arranged in a one-to-one correspondence on the surface of the touch screen, forming an optical network composed of infrared rays. When there is an object ( finger (With gloves, or any touching object ) when entering the infrared optical network to block the infrared transmission and reception somewhere, the intensity of the infrared light received by the receiving tube in two directions at this point will change. The controller understands the infrared reception by The situation changes to know where the touch was made. As shown below.

touch screen display 32.The working principle of the infrared touch screen is that infrared receiving tubes and infrared transmitting tubes are covered around the touch screen. These infrared tubes are arranged in a one-to-one correspondence on the surface of the touch screen, forming an optical network composed of infrared rays. When there is an object ( finger (With gloves, or any touching object ) when entering the infrared optical network to block the infrared transmission and reception somewhere, the intensity of the infrared light received by the receiving tube in two directions at this point will change. The controller understands the infrared reception by The situation changes to know where the touch was made. 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.