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 Lcos Tv - Liquid Crystal on Silicon. Known by the acronym LCOS, its a projection TV technology from Thomson Consumer Electronics, the giant electronics company that's behind the RCA, ProScan and GE brands.
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Lcos Tv. Liquid Crystal on Silicon. Known by the acronym LCOS, its a projection TV
technology from Thomson Consumer Electronics, the giant electronics
company that's behind the RCA, ProScan and GE brands.
|
LCOS TVSs
Liquid Crystal on Silicon. Known by the acronym LCOS, its a projection TV technology from Thomson
Consumer Electronics, the giant electronics company that's behind
the RCA, ProScan and GE brands.
LCOS TV's promise to be lighter, brighter and thinner than
conventional rear projection TV's, thanks to some technical wizardry
that could help put such large screens into homes whose owners would
have previously balked at the thought of a cinema-sized monitor and
its accompanying bulk.
The first LCOS model, the RCA L50000, will be a 50 incher that
measures only 47 1/8" wide by 38" high by get this a mere 18
inches deep. It's also light: less than 100 pounds! RCA says it'll
actually be a table top unit, with an optional stand available.
Compare those dimensions with, for example, Sony's current 57 inch XBR
rear projector, at 54 3/8 wide by 55 1/8 high by 26 7/8 deep
and a massive 278 pounds and you get the picture (no pun
intended). Granted, because the Sony's screen size is larger it?s a
little bit of an apples to oranges comparison, but not too much.
RCA says the digital HDTV LCOS TV will offer a 1280 x 720 pixel
progressively scanned picture (as opposed to interlaced, where half
the picture is displayed at a time) in the 16x9 cinema aspect ratio
that?s becoming so popular. Its progressive matrix display frame
converts incoming video signals to the 720P HDTV standard for
output, the same as is used by the ABC and FOX TV networks.
The L50000's other innovations include a newly-designed prism system
that separates white light into its 3 primary colours (Red, Green,
Blue), then directs these light streams to an imager at which
point the video signal is added. The separate signals are then
melded back into a single synchronized video stream for viewing.
For comparison, conventional rear projection sets use three tubes,
each of which throws a primary-coloured image onto the screen. These
images are aligned by a convergence control so they overlap to
display full color pictures. LCOS TV?s should need no convergence
adjustments.
RCA claims the LCOS has advantages over conventional liquid crystal
projectors as well, in its precise color reproduction and up to 25%
more light output, which means it should be substantially brighter.
The total resolution of the LCOS TV should be a spectacular 2.76
million pixels, which RCA says is three times that of typical
projection TV screens. Its flat screen is also claimed to eliminate
the moiré (more-ray) effect, a wavy distortion you may have seen
sometimes.
LCOS technology could split the difference between conventional rear
projection TVs, which can be truly spectacular (but are awfully big
and heavy), and plasma TVs (which are much thinner and lighter than
the other projection systems, but are very expensive and don't do
the greatest job of displaying black and white). Plasma TVs should
overcome these challenges before long, however.
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