P‐25: A LCOS Microdisplay Driver with Frame Buffering Pixels

An 8‐bit LCOS microdisplay driver for projection display has been designed and fabricated using AMI 0.5 um double‐poly, triple‐level metal CMOS process. The driver includes new frame buffer pixels which presents optimized optical characteristics for Field Sequential Color technique, and a mixed mode grayscale method which implements distinct 256 gray levels per color with a simple driver architecture. The voltage at the frame buffer pixels varies from 0 to 4.25 volts. The new frame buffer pixels enables a LCOS microdisplay to improve brightness without the loss of contrast ratio.