A display device comprising: a display panel having an array of display pixel elements for producing a display output; the display device being an autostereoscopic display device; a viewer detecting system rendering data representing 1) the illumination intensity of two sides of a head of the viewer and 2) the position of the eyes of the viewer relative to the display panel; at least two illumination sources for providing illumination of the head of the viewer; a first processor configured to process the data representing the illumination intensity of the two sides of the head of the viewer; and when there is a contrast in the illumination intensity of the two sides of the head, drive at least one of the illumination sources dependent on said illumination data to reduce the contrast by illuminating the darker side of the head of the viewer; wherein the at least two illumination sources comprise at least two opposing illumination sources at opposing ends of the display, which can be driven independently of each other; wherein the display device comprises an imaging arrangement which is provided over the display panel and which is designed to direct the output from different display pixel elements to different spatial positions within a field of view of the display device, such that at least two viewing areas are defined to which at least two different images can be displayed simultaneously; and wherein the display device comprise a second processor configured to process the data representing the position of the eyes of the viewer relative to the display panel; and drive the display panel dependent on said position data to simultaneously display the at least two different images to the at least two viewing areas. a display panel having an array of display pixel elements for producing a display output; the display device being an autostereoscopic display device; a viewer detecting system rendering data representing 1) the illumination intensity of two sides of a head of the viewer and 2) the position of the eyes of the viewer relative to the display panel; at least two illumination sources for providing illumination of the head of the viewer; a first processor configured to process the data representing the illumination intensity of the two sides of the head of the viewer; and when there is a contrast in the illumination intensity of the two sides of the head, drive at least one of the illumination sources dependent on said illumination data to reduce the contrast by illuminating the darker side of the head of the viewer; wherein the at least two illumination sources comprise at least two opposing illumination sources at opposing ends of the display, which can be driven independently of each other; wherein the display device comprises an imaging arrangement which is provided over the display panel and which is designed to direct the output from different display pixel elements to different spatial positions within a field of view of the display device, such that at least two viewing areas are defined to which at least two different images can be displayed simultaneously; and wherein the display device comprise a second processor configured to process the data representing the position of the eyes of the viewer relative to the display panel; and drive the display panel dependent on said position data to simultaneously display the at least two different images to the at least two viewing areas.