Near-eye light-filed display system having high efficiency and method of projecting a projection virtual pixel using the near-eye light-filed display system

A wearable device for virtual reality or augmented reality applications, comprising a near-eye light-field display system comprising:

• an emissive display comprising a plurality of display pixels, each display pixel having color information and being individually addressable to be set inactive or active such as to generate a light beam towards a pupil plane;
• and
• a lens array positioned between the emissive display and the pupil plane, the lens array comprising an array including a plurality of lenses and being configured to project the light beam generated by the active display pixels to form a projection virtual pixel image;
• wherein the color information of the projection pixel image and the position in space of the projection pixel image are determined by the number of the active display pixels and their position on the emissive display;
• and
• wherein the color information of the projection pixel image is the sum of the color information of the active display pixels.

Method of projecting a projection virtual pixel using a near-eye light-field display system comprising an emissive display comprising a plurality of display pixels, each display pixel having color information and being individually addressable to be set inactive or active such as to generate a light beam towards a pupil plane;

• and
• a lens array positioned between the emissive display and the pupil plane, the lens array comprising an array including a plurality of lenses and being configured to project the light beam generated by the active display pixels to form a projection virtual pixel image;
• wherein the color information of the projection pixel mage and the position in space of the projection pixel image are determined by the number of the active display pixels and their position on the emissive display;
• and
• wherein the color information of the projection pixel image is the sum of the color information of the active display pixels;
• the method comprising:
• providing a vector data corresponding to the color information of the projection virtual pixel and the position of the projection pixel image relative to the pupil plane;
• addressing the emissive display with the vector data, such as to select a subset of display pixels of the emissive display;
• and
• setting active the selected subset of display pixels such that each display pixel in the selected subset of display pixels generates a light beam;
• wherein the color information of the projection pixel image is the sum of the color information of the active display pixels of the subset.