AVS Forum Special Member
Join Date: Dec 2005
Location: Indianapolis Metro Area
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There are test patterns you can run that let you adjust brightness and contrast so that the dynamic range of the TV is used appropriately in displaying content. If you think of possible encoding of black levels as a scale from zero to 255, only 16 to 234 are typically used. So the test patterns include flashing bands encoded from 0 to 255, and we adjust things until 17-234 flash. 0-16 should stay black and above 234 stay white. If this isn't set properly you get black crush and other artifacts.
Sometimes, I see dead pixels...