Abstract
Quantum Dot downconverters can provide a scalable solution to tri-color high-resolution microLED and OLED displays by converting monochrome displays using photopatternable red and green QDs. Using internal measurements collected at NanoPattern Technologies, Inc. we model and discuss the practical wall plug efficiencies for downconverted InGaN blue microLED displays. In the range of 5 um pixel sizes, using uncorrected 65 % film PLQY, the downconverted InGaN red emitter achieves a comparable external quantum efficiency compared to a direct red emitting AlInGaP when compared at practical current densities for microLED drivers.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 405-408 |
| Number of pages | 4 |
| Journal | Digest of Technical Papers - SID International Symposium |
| Volume | 53 |
| Issue number | S1 |
| DOIs | |
| State | Published - 2022 |
| Event | International Conference on Display Technology, ICDT 2022 - Fuzhou, China Duration: Jul 9 2022 → Jul 12 2022 |
Funding
Use of the Center for Nanoscale Materials, a DOE Office of Science User Facility, was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357.
Keywords
- MicroLED
- Optical Density
- Photolithography
- Quantum Dot Downconverters
- Quantum Efficiency
- Wall Plug Efficiency
ASJC Scopus subject areas
- General Engineering