The Screen Door Effect
Cheesy grossly simulated Screen Door Effect
It drives some Obsessives crazy!
How can YOU avoid it?
PLASMA, DLP and LCD displays are subject to the SCREEN DOOR EFFECTThis artifact looks like... looking at a picture through a screen door - thus the clever name, and is easy to ignore from a normal viewing distance (3 to 5 times the screen diagonal... or 10 feet away - minimum - for a 42 inch screen.) But I do feel I should point it out. People tend to look at things closely to judge them. This is a case where you can't do that. Back off, Bubba!
Also known as The Nitpicker's Delight.
The problem is that each pixel has some control circuitry around it. In a plasma, you'll see it between the gassy glowing tubes. In a DLP or LCD projector, if your display's lens is sharply focused, each individual pixel appears on the screen in its own 'little black box.' The lines of the boxes are where the control electronics stops the light from shining through the panel (or is non-reflective at the edges of a DLP micro-mirror). To reduce this there are several options.
Narrower circuitry.
Defocus.
Alcohol.
What to do about it
Sit back. Distance is your friend.
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