Wednesday, May 2025

11:00 AM - 11:20 AM

Room: LL21EF

Session: microLED Devices II

High-Efficiency Low-Crosstalk Red AlGaInP MicroLEDs with Continuous Multiple Quantum Wells for Low-Power AR Glasses

Distinguished Student

• 

  Research Assistant

  Yizhou Qian , PhD

  University of Central Florida

Description:

By redirecting the reflected wave and implementing meta-atoms in the device structure, the light extraction efficiency of continuous multiple-quantum-well red AlGaInP microLED is improved by ~30% while suppressing the crosstalk between adjacent pixels. By implementing carbon black matrix, the crosstalk is reduced by 5 times while maintaining a high efficiency. These high-efficiency red microLEDs help reduce the power consumption and improve image quality of emerging full-color AR eyeglasses.