Reflector orientation of geometrical and mixed waveguide for reducing grating conspicuity

A near-eye display system comprising:

• an image source configured to emit display light of images;
• a waveguide transparent to visible light;
• display optics configured to project the display light onto the waveguide;
• an input coupler configured to couple the display light into the waveguide;
• a first pupil expander configured to split the display light at a first plurality of locations along a first direction;
• and
• a second pupil expander configured to split the display light from each location of the first plurality of locations of the first pupil expander at a second plurality of locations along a second direction that is different from the first direction,
• wherein at least one of the first pupil expander or the second pupil expander includes transflective mirrors that are tilted within the waveguide such that the transflective mirrors are inconspicuous when viewed from an oblique angle.

A near-eye display system comprising:

• a waveguide transparent to display light;
• an input coupler configured to couple the display light into the waveguide, the input coupler including a first group of one or more reflective and/or transflective mirrors having a first orientation;
• a first pupil expander;
• and
• a second pupil expander,
• wherein the first pupil expander is configured to deflect, at a first plurality of locations along a first direction, the display light from the input coupler towards the second pupil expander, the first pupil expander including a second group of one or more reflective and/or transflective mirrors having a second orientation;
• and
• wherein the second pupil expander is configured to deflect, at a second plurality of locations along a second direction different from the first direction, the display light from the first pupil expander towards an eyebox of the near-eye display system, the second pupil expander including a third group of one or more reflective and/or transflective mirrors having the first orientation.