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

Abstract

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 10 7 cd/m².