Wednesday, May 2025
03:30 PM - 03:50 PM
Room: LL20A
Session: Micro Display Circuits and Driving
The Latest Trends on CMOS Backplane for uLEDoS Microdisplay for AR Smart Glasses
Invited
Description:
This paper explores emerging trends in implementing CMOS (Complementary Metal-Oxide-Semiconductor) backplanes for ?LEDoS micro displays in AR smart glasses. The design and performance of these backplanes are driven by critical factors such as form factor, power consumption, field of view (FOV), motion compensation, and manufacturability. An expanded FOV, essential for immersive user experiences, necessitates higher display resolution, which impacts power efficiency, die size, and production yield. Additionally, AR smart glasses require advanced motion compensation features to mitigate image artifacts caused by head or eye movement. A key challenge in manufacturability lies in addressing non-uniform brightness within the LED pixel array, a common issue following hybrid integration of LED arrays and CMOS backplanes. This study presents design strategies and trade-offs encountered during backplane development, focusing on solutions such as pixel-level image compensation to enhance production yield and reduce unit costs.