Multibeam element-based backlighting having converging views
AssigneeLeia Inc.
InventorDavid A. Fattal
Life of this patent
Estimating the term…
Abstract
A multiview backlight and a multiview display employ multibeam elements configured to provide a tilted plurality of light beams having different principal angular directions corresponding to different view directions of a plurality of views of the multiview display. Further, the tilted plurality of light beams has a tilt toward a center of a view zone of the multiview display to provide converging views. The multiview backlight includes a light guide and an array of the multibeam elements. The multiview display further includes multiview pixels that include view pixels to modulate the tilted plurality of light beams having the tilt and the different principal angular directions.
Claims13
A multiview backlight comprising:
- a light guide configured to guide light;
- and
- an array of multibeam elements spaced apart from one another along a length of the light guide, each multibeam element of the array being configured to couple out from the light guide a portion of the guided light as a tilted plurality of light beams having different principal angular directions corresponding to respective different view directions of a plurality of views of a multiview display,
- wherein the tilted plurality of light beams has a tilt toward a center of a view zone of the multiview display to provide converging views, a central axis of tilted plurality of light beams being configured by the tilt to intersect the view zone center.
A method of multiview backlight operation, the method comprising:
- guiding light in a propagation direction along a length of a light guide;
- and
- coupling a portion of the guided light out of the light guide using a multibeam element to provide a tilted plurality of light beams having different principal angular directions corresponding to respective different view directions of a multiview display,
- wherein the tilted plurality of light beams has a tilt toward a center of a view zone of the multiview display to provide converging views, a central axis of tilted plurality of light beams being configured by the tilt to intersect the view zone center.
Dependencies are inferred from the claim text.