25-4: Investigation and Improvement of 10μm Pixel-pitch GaN-based Micro-LED Arrays with Very High Brightness

Microdisplays based on an array of micro-sized GaN-based light emitting diodes (μLEDs) are very promising for high brightness applications. In this paper we investigate electro-optical properties of μLEDs arrays. A particular focus is made on size-reduction and light emission inhomogeneities. This work led us to process improvements, increasing maximum efficiency by 40%, reducing droop effect and enhancing brightness up to 107 cd/m².