Display system with optical elements for in-coupling multiplexed light streams

A display system comprising:

• a waveguide;
• and
• an image injection device configured to direct a multiplexed light stream into the waveguide, the multiplexed light stream comprising a plurality of light streams having different light properties, the light properties comprising wavelength and polarization,
• wherein the waveguide comprises liquid crystal in-coupling optical elements configured to selectively in-couple a first of the streams of light while being transmissive to one or more other streams of light, wherein the liquid crystal in-coupling optical elements are configured to selectively in-couple the first stream of light based upon a wavelength and a polarization of light forming the first stream of light, and
• wherein the in-coupling optical elements comprise at least one of meta-surfaces, metamaterials, or PBPE structures.