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62‐1: High‐Resolution Quantum‐Dot Photoresist for Full‐Color µ‐LED Microdisplays
Author(s) -
Chen Chih-Jung,
Chen Kuan-An,
Chiang Ray-Kuang
Publication year - 2021
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.14826
Subject(s) - absorbance , quantum dot , photoresist , materials science , optoelectronics , red color , gamut , absorption (acoustics) , optics , nanotechnology , physics , layer (electronics) , composite material
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.