18.2: Bistable FLCOS Devices for Doubled‐Brightness Micro‐Projectors

Optical efficiency is of paramount importance to emerging ultra-miniature projector products. We have developed experimental bistable ferroelectric-liquid-crystal-on-Silicon (FLCOS) projection microdisplay devices using newly developed FLC materials aligned on obliquely-deposited SiO2. These devices enable doubling of illumination duty cycle, and hence doubling of achievable projector light output, while maintaining DC-balanced electrical drive.