Pyramidal microLEDs delivering RGB in single materials system
Paper in proceeding, 2025
Polar Light Technologies has developed an innovative microLED solution that generates RGB emission within a single materials system, achieving a significant leap in microLED technology, especially for micro-projector and display applications. By employing a unique bottom-up approach based on hexagonal GaN pyramids with InGaN quantum wells (QW), microLEDs with peak emission at 470 nm, 520 nm and 625 nm were demonstrated without the need for separate phosphor or quantum dot color conversion. This integration will not only simplify the future manufacturing process but also enhance the color uniformity and stability throughout a device.
InGaN/GaN
bottom-up growth
MicroDisplay
RGB
microLEDs
Author
Lisa Rullik
Polar Light Technologies AB
I. Martinovic
Polar Light Technologies AB
Linköping University
S. P. Le
Linköping University
Polar Light Technologies AB
Andrei Vorobiev
Polar Light Technologies AB
Chalmers, Microtechnology and Nanoscience (MC2), Terahertz and Millimetre Wave Laboratory
C. W. Hsu
Linköping University
Polar Light Technologies AB
P. O. Holtz
Linköping University
Polar Light Technologies AB
Proceedings of SPIE - The International Society for Optical Engineering
0277786X (ISSN) 1996756X (eISSN)
Vol. 13386 13386069781510685208 (ISBN)
Light-Emitting Devices, Materials, and Applications XXIX 2025
San Francisco, USA,
San Francisco, USA,
Subject Categories (SSIF 2025)
Condensed Matter Physics
DOI
10.1117/12.3058127