LCD front projection.
WHAT IT IS. These are small, portable projectors that project an image onto a
separate component screen or a white wall. They work by shining a high-intensity
light through a single miniature LCD panel or three individual panels for Red, Green
and Blue. The resulting light is projected through a lens system onto the screen.
BENEFITS. If you want the biggest possible picture, LCD front projection is the
definite way to go. You can project images as large as 25 feet diagonal. If you want
the least impact on your home décor, that's another good reason to go this route. In
portable use, you can place the projector on a coffee table. For permanent installation,
the projector can be suspended from the ceiling. So it's out of the way during daily
life. There's more. LCDs need no convergence and are immune from "burn-in."
They need no magnetic shielding from your loudspeakers. There are no altitude
limits. And the brightness comes from a light bulb that is replaceable.
LIMITATIONS. Ambient light needs to be controlled to get the brightest picture,
especially when projecting at the biggest screen sizes.
The Sony Guide to Home Theater