According to Engadget,Some ipad 2 screen Defect.Few month before iPhone 4 also Released at that time also some customers complained about Yellow dots in iPhone 4,as that same problem facing on iPad 2.When you watching movie or video clip on your ipad 2 you will see at the right side back light bleeding.
two issues have bubbled to the surface. The first issue — yellow spots beneath the LCD glass — is reminiscent of the same fresh-from-the-factory iPhone 4 issue that resolved itself just as soon as the bonding agent used for the LCD glass had time to evaporate. The second issue, which is being conflated with the first, is characterized by light bleeding through from the outer edges of the LCD panel. The bleeding is most noticeable when watching a dark scene in a movie or using an app with a black background as demonstrated in the picture above and video embedded after the break.
Check Video iPad 2 Screen light Bleeding :
Stay tune with us for more details on iPad 2.
No worries if these do not evaporate the guarantee will cover it
surely something to take into acount but not a big problem IMO