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25‐4: Investigation and Improvement of 10μm Pixel‐pitch GaN‐based Micro‐LED Arrays with Very High Brightness
Author(s) -
Olivier François,
Daami Anis,
Dupré Ludovic,
Henry Franck,
Aventurier Bernard,
Templier François
Publication year - 2017
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1002/sdtp.11615
Subject(s) - light emitting diode , brightness , voltage droop , materials science , optoelectronics , diode , reduction (mathematics) , optics , voltage , physics , electrical engineering , engineering , geometry , mathematics , voltage divider
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.