If you think your iPad 3's screen is perfect, please attach a photo. I believe it will be very useful to let every one take a look. At least I believe there are so many so called perfect screen actually are defect screens. Photo may look like problematic, but if there is a real problem, it will definitely show n the photo. The best wary to check the screen is bring up the keyboard and sliding down to the other end, compare the color of keys and background.