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LCD Rear-Projection


Available sizes: 42"-70"

Advantages:

Ultra sharp image - Due to the large pixel gap, these displays can look extremely sharp at the right distance.
No rainbow effect - Unlike DLP, there is no possibility for a rainbow effect.

Advantages:

DLP Rear-Projection


Available sizes: 42" - 67"

Advantages:

Black level - Currently sports better black levels than LCD.
Smoothness - DLP offers a smooth picture due to the smaller pixel gap.

Disdvantages:

Video noise - Random sparkles in darker areas of the screen.
Possible rainbow effect - Moving your eyes quickly may cause you to see a rainbow of color

LCoS (and variants) Rear-Projection


Available screen sizes: 52" - 82"

Advantages:

Smooth picture - Due to the very small pixel gap, the images are smooth as glass
High resolutions - Many options are available at 1080x1920

Disdvantages:

Price - These sets tend to be more expensive than DLP and LCD options
Black Level - Many LCoS sets don't handle blacks as well as DLP or LCD

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