touch screen display keyboard.The resolution of the touch screen is expressed by the product of the number of points that can be detected in the x direction and the number of points that can be detected in the Y direction on the screen . Early infrared touch screen according to the received optical signal is received or absence tube to determine whether the change is triggered with a resolution determined by the number of infrared tubes, so that the resolution is a resolution of ten other physical screen , i.e., when the infrared When there are 120 pairs of infrared tubes in the X direction of the touch screen and 45 pairs of infrared tubes in the Y direction , the resolution is 120X45 . In this way, the resolution of the touch screen is relatively low.

touch screen display keyboard.The resolution of the touch screen is expressed by the product of the number of points that can be detected in the x direction and the number of points that can be detected in the Y direction on the screen . Early infrared touch screen according to the received optical signal is received or absence tube to determine whether the change is triggered with a resolution determined by the number of infrared tubes, so that the resolution is a resolution of ten other physical screen , i.e., when the infrared When there are 120 pairs of infrared tubes in the X direction of the touch screen and 45 pairs of infrared tubes in the Y direction , the resolution is 120X45 . In this way, the resolution of the touch screen is relatively low. 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.