27.4: A Low Temperature Poly‐Si TFT Liquid Crystal Light Valve (LCLV) with a Novel Light‐Shielding Structure for High Performance Projection Displays

Abstract

We have successfully achieved a very high contrast ratio of over 700:1 without attaching optical compensation films. This good contrast ratio is much higher than that for commercially available projection displays whose typical contrast ratios are about 400:1. A novel light-shielding structure has been employed in order to realize the excellent performance that has been brought by suppressing low photo leakage current in the TFTs for the LCLVs.

An LCoS Microdisplay for Video Conference on Wireless Network

“…Several microdisplay technologies have been developed, such as Liquid-Crystal-on-Silicon (LCoS), High-temperature Poly-silicon (HTPS) LCDs and Digital Light Processing (DLP) [1][2][3][4][5]. Among these technologies, LCoS is most viable because the pixel on LCoS can be made smaller than that on panels of other microdisplay technology without sacrificing image quality.…”