1. A method for controlling a display on a display area of a display device in a transportation device, comprising: generating data for displaying a background region and data for displaying a subregion of the display area, the display of the subregion covering the display of the background region; displaying in display content in the subregion at least a portion of display content of the background region covered by the subregion in a different manner than in the background region, at least one of (a) the subregion in the display being shifted relative to the display content of the background region and (b) the display content of the background region being shifted relative to the subregion as a function of an input signal; and updating the display content in the subregion so that, in a new relative position between the subregion and the display content of the background region, at least at least a portion of the display content of the background region covered by the subsection in a different manner than in the background region is continued to be displayed