Patent ID: 9479767
Filing Date: 2016-10-25
CPC Classification: H04N

Claim Text:
1. An autostereoscopic display device comprising: a pixelated display panel; an imaging arrangement for directing the light associated with different display pixels of the display panel to different directions, such that at least three viewing areas are defined to which different images can be displayed simultaneously wherein the viewing areas are formed in display output viewing cones each having a cone width, wherein the viewing cones repeat across a field of view; a viewer tracking system for tracking a viewer and determining a position of a viewer with respect to the display panel; a processor for processing image content and to drive the display panel, wherein the processor drives the display panel to display a number of different views within each viewing cone which is dependent on at least a distance of the viewer from the display panel, wherein for a first viewing distance below a distance threshold, a total of two views are displayed, and for a second, greater, viewing distance, a second, greater, number of views is displayed, wherein the distance threshold is such that the cone width at that distance is less than a threshold which is in the range 13 cm to 40 cm.