Remus Albu

Design aspects of a scrolling color LCoS display

Abstract The Philips scrolling color liquid crystal on silicon (LCoS) architecture is a very attractive approach towards affordable large area displays. The color sequential nature coupled with high resolution brings demands on speed and bandwidth. Design requirements and solutions tailored to address scrolling color LCoS demands are presented. We have implemented high quality displays based on silicon backplanes employing a mixed digital–analog construction, high speed FPGA based drive electronics, a thin nematic liquid crystal cell, and a scanning stripe optical engine. Despite challenging demands we have found many opportunities to exploit available technologies in our system designs.

A 2GHz 160V complementary silicon-on-insulator process for high-bandwidth amplification

High resolution display applications require both high-voltage and high-speed to realize low-dissipation video amplification. This paper presents a complementary 160V 2GHz silicon-on-insulator technology where LDMOS device structures are designed utilizing three-dimensional RESURF depletion. These structures exhibit a static power dissipation-switching speed figure-of-merit which is at least a factor-of-two lower than any technology reported-to-date. A 50MHz-bandwidth video amplifier with a 8800V//spl mu/s slew-rate and static power dissipation less than 0.8W/channel has been fabricated, validating the intrinsic performance benefit of thin-layer silicon-on-insulator for high-voltage high-bandwidth application.