71‐2: Enhanced optical efficiency by applying dual micro‐lens structure in AR/VR application

Efficiency enhancement is one of top priority in Micro‐ OLED to achieve high brightness in AR and VR applications. One of well‐ known solutions is to adapt a micro‐lens array (MLA), but there have been a few investigations to consider detail design parameters. Based on robust FDTD simulation, we propose a stepwise simulation methodology to optimize lens design to obtain enhanced efficiency and to control light leakage to adjacent pixel