Tiled assemblies for a high dynamic range display panel

An apparatus for a display, the apparatus comprising:

• a first light source to illuminate in a first direction a first light guide with a first light, the first light guide directing the first light to a second direction different from the first direction;
• a second light source to illuminate in the first direction a second light guide with a second light, the second light guide directing the second light to the second direction and the second light guide being adjacent to the first light guide;
• and
• a quantum dot layer,
• wherein the first light source directly underlies in the second direction the second light guide, and the first and second light guides each include a multi-faceted reflective layer to direct light to the second direction, wherein the multi-faceted reflective layer in three dimensions varies with azimuth, and
• wherein the first light source does not extend below a bottom side of the second light guide and the multi-faceted reflective layer has an undulating cross-section covering the second light source, the undulating cross-section being a waveform that has a higher frequency at an end proximal to the first light source than at an end distal to the first light source,
• wherein the first light guide does not overlap the second light guide in the second direction, and
• wherein the first direction is parallel to a flat portion of the first light guide and configured such that the first light source scatters light off the undulating cross-section of the multi-faceted reflective layer of the first light guide.