Various embodiments include a display panel with an integrated micro-lens array. The display panel typically includes an array of mesas which includes an array of pixel light sources (e.g., LEDs) electrically coupled to corresponding pixel driver circuits (e.g., FETs). The array of micro-lenses is aligned to the mesas including the pixel light sources, and positioned to reduce the divergence of light produced by the pixel light sources. In some embodiments, the array of micro-lenses formed from a micro-lens material layer is formed directly on top of the mesas. The display panel may also include an integrated optical spacer formed from the same micro-lens material layer to maintain the positioning between the micro-lenses and pixel driver circuits.