A video processing device receives main video data and auxiliary video data for an ultra wide (21:9) display. The main video data has a source aspect ratio, an active video area and black bars. The auxiliary video data is provided separately for display in an overlay area at a first display position. The device receives a display aspect ratio indicator, and has a processor (18) for generating the video signal. The data input means (11) further receive offset data coupled to the auxiliary video data indicative of an offset of the auxiliary video data at the display aspect ratio. The processor (18) is arranged for shifting the overlay area in dependence of the offset data from the first display position to a second display position for reducing the black bar area.