Invisible wrote:
> PS. Why do all the "DLP" projectors have 10x the contrast ratios of 
> "LCD" projectors??

In an LCD projector, there's a light bulb that shines through the LCD, 
which subtracts out the colors you don't want on the wall at that point.

In a DLP projector, there's a light bulb that bounces off microscopic 
movable mirrors that reflect the light onto the wall or not, depending 
on whether you want that color there.

So in a DLP, there's basically no filter in front of the light, and the 
"moving parts" don't absorb the light so they don't get hot as easily. 
(Not that they stay cool, but it's not their design goal to turn light 
into heat.)

-- 
Darren New / San Diego, CA, USA (PST)
  Helpful housekeeping hints:
   Check your feather pillows for holes
    before putting them in the washing machine.

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