touch screen display cleaning.The touch screen is an absolute coordinate system, and you can click where you want to choose. The essential difference with a relative positioning system such as a mouse is that it is intuitive once in place. The characteristic of the absolute coordinate system is that each positioning coordinate is not related to the last positioning coordinate. The touch screen is physically an independent coordinate positioning system. The data of each touch is converted to the coordinates on the screen through the calibration data. The set of coordinates of the touch screen is stable under any circumstances. The output data at the same point is stable. If it is not stable, then the touch screen cannot guarantee absolute coordinate positioning, and the points are not accurate. This is the most feared problem of touch screens: drift. Technically, any touch screen that cannot guarantee that the same sampling data is touched every time will inevitably have the problem of drift. At present, only capacitive touch screens have drift phenomenon.

touch screen display cleaning.The touch screen is an absolute coordinate system, and you can click where you want to choose. The essential difference with a relative positioning system such as a mouse is that it is intuitive once in place. The characteristic of the absolute coordinate system is that each positioning coordinate is not related to the last positioning coordinate. The touch screen is physically an independent coordinate positioning system. The data of each touch is converted to the coordinates on the screen through the calibration data. The set of coordinates of the touch screen is stable under any circumstances. The output data at the same point is stable. If it is not stable, then the touch screen cannot guarantee absolute coordinate positioning, and the points are not accurate. This is the most feared problem of touch screens: drift. Technically, any touch screen that cannot guarantee that the same sampling data is touched every time will inevitably have the problem of drift. At present, only capacitive touch screens have drift phenomenon. 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.