imac 20" display discolouration

[elicash]

Just wondering if anyone can tell me how normal areas of white discolouration (when viewing a black, or dark screen) on each corner of my imac are - they're diagonal, around a few cm each. Drives me nuts watching DVDs with dark cinematography.

Seen this before on older power books, but it usually took a while to happen, and I put it down to pressure behind the LCD.

 

[student_trap]

Just wondering if anyone can tell me how normal areas of white discolouration (when viewing a black, or dark screen) on each corner of my imac are - they're diagonal, around a few cm each. Drives me nuts watching DVDs with dark cinematography.

Seen this before on older power books, but it usually took a while to happen, and I put it down to pressure behind the LCD.

I had this, and i just took my imac back for a full refund, for more info (and pics), see this thread https://forums.macrumors.com/showthread.php?p=3142746&posted=1#post3142746

 

[chrisworld]

Just wondering if anyone can tell me how normal areas of white discolouration (when viewing a black, or dark screen) on each corner of my imac are - they're diagonal, around a few cm each. Drives me nuts watching DVDs with dark cinematography.

Seen this before on older power books, but it usually took a while to happen, and I put it down to pressure behind the LCD.

just about every LCD display has this it normal dont worry and sometimes LCD's have 1 or 2 pixels somewhere on it that dont work but there kinda hard to see from far away, i have 2, one is red and the oher is a bluish green, same thing with my old LCD, jsut a dead pixel