2 OT Questions For Kindreds...
Jeffrey Lomicka
JeffreyLomicka at comcast.net
Mon Dec 5 10:23:11 PST 2005
There's a certain sociological aspect to this. Myself, I prefer
front projection, but it isn't for just anyone.
Consider this: What color is a projection screen? White, right?
A projector that is projecting "black" is like being off, and when
the projector is off, the screen is white, so the darkest black you
can ever get out of a front projection technology is actually white,
the white of the screen. Or, more accurately, the white of the
screen given the ambient light in the room.
Because of this inherent limitation, front projection is only good
when you blacken the room, and the blacker the better. Not just dim,
but black. This makes the room useless for carrying out any other
activities when the display is on. This goes so far as to want dark
walls and ceiling so that light from the screen doesn't reflect back
and raise the darkness level of the dark areas of the screen.
Because of this, projection is best for watching when you intend to
devote your full attention to the show, and nothing but the show.
However, it makes for a great show. My projection system is a
peripheral-vision filling eight foot by six foot screen, with the
couch only ten feet away. This isn't television, it is theater.
So, I will not even consider projection for the family room. The
theater is in the basement, and is reserved for those times when we
want to watch with full attention. For more casual viewing, with the
lights on, you need to have something that is black when it's off,
not white. Right now I'd choose LCD - but I'm waiting for prices to
come down and for the final fallout from the reallocation of the VHF
TV frequencies to pan out. I don't want to have to worry about the
care and feeding issues with Plasma displays.
Rear projection is slightly better than front projection at
tolerating ambient light, but still can't produce the daytime
contrast ratio of LCD.
None can match the 120" diagonal of front projection tho.
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