a0b28b70_ogy_is_Better____Projectors101__Explanation
[Category] Black Levels [Winner] OLED [Explanation] 
Both plasma and OLED displays offer excellent blacks since they can completely turn off individual pixels, but OLED does it better. The way plasma panels are constructed causes a small amount of ambient light to be refracted out to the viewer, and OLED displays don’t have this problem. They’ve got some of the deepest blacks we’ve ever seen.
OLED vs. Plasma – Which Display Technology is Better? | Projectors101
Explanation