I'm having problems with my screen for a while. The whites around the corners seem greyer than other parts of the screen and I'm also seeing really bright white spots. Is there any solution?
Replace the LCD if its bothering you, this is a manufacturing problem. But a replacement LCD may have the same problem. The graying issue is a backlight anomaly pertaining to the lamination of the LCD panel.
They're both just symptoms of usage and age. My 2011 has a few bright spot spots on it, and the backlights isn't exactly as perfect as it used to be. But for a 6-year-old laptop that's been dragged everywhere, it's not too bad!