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January 31, 2006
LCoS Display Technology Shootout Part A
By Dr. Raymond Soneira, President DisplayMate Technologies Corp


Liquid Crystal on Silicon, LCoS, is a relatively new and obscure display technology that is now making its grand entrance into the HDTV marketplace. What is really impressive is that instead of taking the traditional path of entering at the ground floor with mediocre performance compared to the established technologies and then trying to percolate up to the top tier in picture quality, it is starting out right at the very top. Already, LCoS provides the highest resolutions, the highest non-CRT Contrast Ratios, and the most artifact-free images of any display technology. For people that are sensitive to flicker and eye-fatigue, LCoS operates at the highest refresh rates (120 Hz) for the smoothest, most flicker-free images. This article will be an in-depth examination of 5 LCoS HDTVs, all but one of them prototypes, in order to get an early look into this unfolding technology.
Of course, LCoS isn`t really brand new because it`s been under development for more than a decade, and JVC has actually been shipping high-end professional front projectors with this technology since 1998, but it`s been a relatively low-volume niche market until now. It`s also been a very difficult technology to perfect, and quite a few companies have either given up or gone bankrupt trying. Thomson (under the RCA brand) produced the first commercial LCoS HDTV in 2001, followed by Toshiba (using Hitachi LCoS chips) and then Philips, but all of them had dropped out by October 2004. Intel shook the industry in January 2004 by announcing that it would begin manufacturing LCoS panels but then abandoned the project in October 2004 before anything was shipped. As a result, the future of LCoS was being questioned by many analysts, but the technology was merely regrouping for its real launch into the HDTV marketplace.

The second generation of LCoS began when JVC launched their first rear-projection 1280×720 High Definition TVs in July 2004. Sony joined in January of 2005 with their high-end 1920×1080 Qualia unit. Next came Brillian, which began shipping their 1280×720 unit in mid-2005. As I`m finishing this article there are only a few LCoS HDTV models available for purchase worldwide. However, JVC and Sony recently announced their second generation HDTVs and LG its first (with SpatiaLight LCoS panels). Another major LCoS player is Hitachi, but they postponed (indefinitely) the November 2005 launch of their 60 and 70-inch LCoS HDTVs. For this article we were fortunate to have been able to test and evaluate a number of pre-production prototypes, so this is where our story begins...Continued...



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http://www.extremetech.com/article2/0,1697,1917529,00.asp
 
aus der Diskussion: vergesst LCD-TVs & Plasma TV / LCoS(TM) HDTV Product of the Year
Autor (Datum des Eintrages): teecee1  (01.02.06 19:35:18)
Beitrag: 10 von 2,820 (ID:19998289)
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