Directional backlight

摘要

A directional backlight is disclosed. The directional backlight has a plurality of light sources to generate a plurality of input planar lightbeams. The plurality of input planar lightbeams illuminates a directional backplane that has a plurality of directional pixels to scatter the plurality of input planar lightbeams into a plurality of directional lightbeams. Each directional lightbeam has a direction and angular spread controlled by characteristics of a directional pixel in the plurality of directional pixels. The directional backlight can be used to generate a 3D image by specifying the characteristics of the directional pixels in the directional backplane.

主权项

1. A directional backlight, comprising:
a plurality of light sources to generate a plurality of input planar lightbeams; and a directional backplane having a plurality of directional pixels to scatter the plurality of input planar lightbeams into a plurality of directional lightbeams, each directional lightbeam having a direction and angular spread controlled by characteristics of a directional pixel in the plurality of directional pixels, wherein the directional pixels are configured to scatter light of a single color in an input planar lightbeam from a single one of the light sources into at least two different directional lightbeams of the directional lightbeam plurality, the at least two different directional lightbeams having different angular directions from one another.