A motor vehicle screen device having a screen that can be driven by a driving mechanism between an inactive position within a cavity of a dashboard and an approximately vertical active position outside the cavity and from the active position into the inactive position. The screen is provided with spaced-apart guiding elements which are guided within guides that run nearly horizontal, perpendicular to the movement path of the screen. The monitor can be driven such that the guiding elements thereof are movable within the guides. At least one of the guiding elements is locked at the active position end of the guide by a locking mechanism.