Well, quite few users are obsessed over such display issues , looking for a perfect display. Personally as long as it looks right without such blotchy patches when in normal use under normal lighting conditions, I am happy with it. Anyone, I have tested my unit even in dark conditions, such effects are not that noticeable and even it is, it doesn't really matter much to me as I do not viewed my phone in very dark conditions. Even at night in bedroom, with lights all off , there is still some visible light in the room