Research and technology development on micro-LEDs and quantum dots for next-generation displays

Colloidal quantum dots (QDs) integrated Micro-LEDs are key technologies for next-generation displays such as AR/VR. However, fundamental scientific issues such as the low internal quantum efficiency (IQE) of Micro-LEDs and low quantum dots light conversion efficiency (LCE) remain to be resolved for the commercialization of this technology. In this talk, the impact of Micro-LED Epi and chip designs as well as GaN free-standing substrates on the improvement of IQE of Micro-LEDs will be reported. Mechanisms of proposed 0D–2D hybrid optical scatterers for improving the LCE of QDs will also be discussed.