A display (700, 800, 900, 1200, 1300, 1504, 1600, 1700, 1800, 1900) comprising: a sensor (708, 1508, 1606, 1804, 1902) coupled to the display (700, 800, 900, 1200, 1300, 1504, 1600, 1700, 1800, 1900) to detect a first position corresponding to at least one eye of a first viewer; and an image renderer coupled to the sensor (708, 1508, 1606, 1804, 1902) to adjust a first image of a first 3D image pair to be displayed towards the eye of the first viewer according to the first position, wherein the sensor (708, 1508, 1606, 1804, 1902) is configured to detect a second position corresponding to at least one eye of a second viewer, wherein the sensor (708, 1508, 1606, 1804, 1902) is further configured to detect positions of both eyes of the first viewer and of the second viewer, and the image renderer is configured to adjust a second image of a second 3D image pair to be displayed towards the eye of the second viewer according to the second position characterized in that the display (700, 800, 900, 1200, 1300, 1504, 1600, 1700, 1800, 1900) is configured to create viewing zones for each detected viewer in a vertical direction and in a horizontal direction, the sensor (708, 1508, 1606, 1804, 1902) is configured to detect a vertical overlap between the eye of the first viewer and the eye of the second viewer, the vertical overlap occurring when the eye of the first viewer is a left eye or a right eye, and the eye of the second viewer is a right eye when the eye of the first viewer is the left eye and in the same viewing zone in the horizontal direction, and the eye of the second viewer is a left eye when the eye of the first viewer is the right eye and in the same viewing zone in the horizontal direction, and wherein the image renderer is configured to adjust the first image according to the first position, and to adjust the second image according to the second position such that custom viewing zones for each detected eye of each detected viewer in both the horizontal and the vertical direction are created and a corresponding custom image for each custom viewing zone is shown. a sensor (708, 1508, 1606, 1804, 1902) coupled to the display (700, 800, 900, 1200, 1300, 1504, 1600, 1700, 1800, 1900) to detect a first position corresponding to at least one eye of a first viewer; and an image renderer coupled to the sensor (708, 1508, 1606, 1804, 1902) to adjust a first image of a first 3D image pair to be displayed towards the eye of the first viewer according to the first position, wherein the sensor (708, 1508, 1606, 1804, 1902) is configured to detect a second position corresponding to at least one eye of a second viewer, wherein the sensor (708, 1508, 1606, 1804, 1902) is further configured to detect positions of both eyes of the first viewer and of the second viewer, and the image renderer is configured to adjust a second image of a second 3D image pair to be displayed towards the eye of the second viewer according to the second position characterized in that the display (700, 800, 900, 1200, 1300, 1504, 1600, 1700, 1800, 1900) is configured to create viewing zones for each detected viewer in a vertical direction and in a horizontal direction, the sensor (708, 1508, 1606, 1804, 1902) is configured to detect a vertical overlap between the eye of the first viewer and the eye of the second viewer, the vertical overlap occurring when the eye of the first viewer is a left eye or a right eye, and the eye of the second viewer is a right eye when the eye of the first viewer is the left eye and in the same viewing zone in the horizontal direction, and the eye of the second viewer is a left eye when the eye of the first viewer is the right eye and in the same viewing zone in the horizontal direction, and wherein the image renderer is configured to adjust the first image according to the first position, and to adjust the second image according to the second position such that custom viewing zones for each detected eye of each detected viewer in both the horizontal and the vertical direction are created and a corresponding custom image for each custom viewing zone is shown.