It seems that some Nokia N8 and C7 AMOLED displays are defective. The most common complaint (there are several actually) is that the screen has a purple tint in darker areas. It's not clear yet whether this is a software or a hardware issue. It is speculated that Nokia uses two kinds of displays - although it's unlikely as all AMOLEDs are made by Samsung.
In the photo above you can see the problem (on the phone on the left - the clock and button shouldn't be red!). Nokia hasn't officially recognized this issue, but it seems that more and more users complain.
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Posted: Feb 18,2011 by Ron Mertens