62‐1: High‐Resolution Quantum‐Dot Photoresist for Full‐Color µ‐LED Microdisplays

Abstract

Thick‐shell quantum dots (QDs) with high mass absorption of 450 nm blue light (absorbance >1.5 for green QD and absorbance > 2.0 for red QD at concentration of 1 mg QD/1 mL solvent) have been adopted to formulate high resolution QD photoresist (QDPR), which can achieve color gamut higher than 90% BT.2020 coverage at film feature resolution of 5 µm and thickness less than 2 µm. The thermal stability and photostability of the QD color converter films were tested to evaluate for the feasibility of applications in color converters for full‐color µ‐LED microdisplays.