Note up front: I am not talking about dead or stuck pixels. I am talking about apparent wear in the display itself.
This is an early 2008 MacBook Pro (15", LED backlight, matte display.) There are some "keyboard rub marks" on it, but I'm not talking about that. There is a scratch on it, but I'm not talking about that.
I have tried to clean the screen with LCD-safe cleaner. But I'm left with quite a few "dark spots" (if the screen is darker than about 60% gray, most of them disappear, the last one at about 80% gray.) Plus a couple "light spots" (which, likewise, disappear at about 80% gray.) So they appear to be places where the backlight is either hidden or shines through more than normal.
I've found many references o similar things, but nobody seems to have an actual answer for what causes it, and if it can be fixed or improved (without replacing the entire display panel, of course.)
I've attached a photograph showing the goofiness, with the dark and light spots circled. (Needless to say, they don't appear in a screenshot, so it's 'hardware' not software.)
This is an early 2008 MacBook Pro (15", LED backlight, matte display.) There are some "keyboard rub marks" on it, but I'm not talking about that. There is a scratch on it, but I'm not talking about that.
I have tried to clean the screen with LCD-safe cleaner. But I'm left with quite a few "dark spots" (if the screen is darker than about 60% gray, most of them disappear, the last one at about 80% gray.) Plus a couple "light spots" (which, likewise, disappear at about 80% gray.) So they appear to be places where the backlight is either hidden or shines through more than normal.
I've found many references o similar things, but nobody seems to have an actual answer for what causes it, and if it can be fixed or improved (without replacing the entire display panel, of course.)
I've attached a photograph showing the goofiness, with the dark and light spots circled. (Needless to say, they don't appear in a screenshot, so it's 'hardware' not software.)