An illumination assembly includes a transparent substrate and a plurality of micro devices. The transparent substrate includes a first surface and a second surface opposite the first surface. The first surface includes a viewing region through which light passes prior to reaching an eyebox. The plurality of micro devices are coupled to respective conductive pathways that are affixed to the first surface. The plurality of micro devices including at least one micro device that is positioned within the viewing region. In some embodiments, the conductive pathways are arranged in a pseudo random manner. In some instances, the viewing region is composed of a circuity free region that is circumscribed by an outer region, and the plurality of micro devices are coupled to respective conductive pathways that are affixed to the first surface in the outer region.