发光二极管
光电子学
材料科学
光学
色散(光学)
LED显示屏
二极管
物理
计算机科学
操作系统
作者
Jinpeng Huang,Minglei Tang,Binru Zhou,Zhiqiang Liu,Xiaoyan Yi,Junxi Wang,Jinmin Li,Anlian Pan,Liancheng Wang
摘要
Augmented reality (AR) is emerging as a next-generation interactive display that promotes the interaction between users, digital content, and the real world. Although micro-LED is regarded as the most promising light engine candidate for AR, its inherent Lambertian radiation characteristics and relatively broader emission spectrum result in low optical coupling efficiency and diffraction dispersion-related “rainbow” phenomenon when combined with a waveguide combiner. Here, we numerically and experimentally demonstrate resonant cavity (RC) micro-LEDs by incorporating SiO2/TiO2 distributed Bragg reflectors with chip sizes of 60, 100, and 150 μm. The device has a divergence angle of 78.7° and a narrow spectrum width of 6.8 nm, which is significantly lower than that of the controlled micro-LEDs. The reported GaN-based RC micro-LEDs have the potential to be used in the display panel for AR applications in a variety of scenarios, including AR glasses, and head up display for cars and airplanes.
科研通智能强力驱动
Strongly Powered by AbleSci AI