US 12,769,144 B2 · Display module based on divergent beams with an asymmetrical divergence angle

Abstract

The present invention discloses a display module based on divergent beams with an asymmetrical divergence angle, which includes a light engine, a divergence-angle modulation element, a combiner, and a controller. The beams emitted from each projection point of the light engine are modulated, by the divergence-angle modulation element, into a bunch of beams with an asymmetrical divergence angle. Such a bunch of beams cover a rather large region on the combiner, by oblique incidence along one direction at a small divergence angle and by incidence along another direction at a large divergence angle. Then, the combiner converges incident beams from different projection points to corresponding viewing zones respectively, for a Maxwellian view 3D display or a Super multi-view 3D display.

Claims31

Dependent claims

A display module based on divergent beams with an asymmetrical divergence angle, comprising:

a controller;
a light engine configured to respectively project divergent beams from M projection points under control of the controller, wherein M≥1;
a divergence-angle modulating element configured to modulate beams from a projection point, such that beams from the projection point are emit as a bundle of beams with an asymmetrical divergence angle, ≤10° along a lateral reference direction and >10° along a vertical reference line;
a combiner configured to perceive the beams from the divergence-angle modulating element, with an obliquely incidence of the beams emitted by the projection point along a direction at the divergence angle ≤10°, and converge the beams from the projection point to a corresponding viewing zone.

1 more element

Dependencies are inferred from the claim text.

Display module based on divergent beams with an asymmetrical divergence angle

Life of this patent

Display module based on divergent beams with an asymmetrical divergence angle

Life of this patent

Abstract

Claims31