Illumination redistributor for display panel

A display apparatus comprising:

• a collimator having object and image planes;
• a display panel comprising an array of pixels for providing an image in linear domain at the object plane;
• and
• a redistributor comprising an array of light-redirecting features,
• wherein:
• the collimator is configured for converting the image in linear domain at the object plane into an image in angular domain at the image plane, wherein a beam of light from a pixel of the display panel has a first dependence of a beam coordinate at the image plane upon a pixel coordinate at the object plane when the display panel is illuminated with light having a spatially uniform angular distribution of brightness;
• and
• the light-redirecting features of the redistributor are configured to convert the spatially uniform angular distribution of brightness of light illuminating the display panel into a spatially non-uniform angular distribution of brightness for lessening the first dependence.