vraxtus said:
...you have a serious eye problem that is causing a burn-in image when you look directly, with no eye movement whatsoever, while closing a window, and seeing a burn in image, while remaining... completely... motionless...
Luckily it's not a serious eye problem - it's an evolutionary "defect" if you will, called chromatic adaptation. We all have it and experience it every day. You can even duplicate it at home.
But, assuming that this is indeed a display issue and not a pure physical response, let's figure out how it could happen.
Again, with LCD displays, the lamps burn at a constant brightness, no matter what is displayed on the screen (unless, of course, it is off). This is part of the reason that you can never really get as good a black on an LCD as you can on a CRT.
Anyway, the LCD gates on the screen rotate based on an electrical input, essentially translating to a standard 8-bit signal (0 to 255). When the screen receives a signal to display a white value, the doors on the gates open wide to allow significant light through. When the window closes, the gates now receive a signal to switch from mostly open (say a 240) to something closer to a dark gray, perhaps a 60 or so.
Now, if the latent delay is typical, then we should also see it when changing from the dark screen to a light screen. That is, there should be no more delay switching from a 240 position to a 60 position than from a 60 position to a 240 position. If that is the case, then we should see our bright white windows gradually getting brighter as the gates open all the way.
Note also that if the gates are that slow to respond, it would impact other things as well - such as how fast type appeared on screen or how fast windows scrolled, etc. It should not impact only the change from bright white to dark colors.
So while it may sound like I'm describing some horrible physical defect, I'm not. It happens all of the time. And while, yes, if the screen is truly really bright (such as sunlight reflecting off of metal or glass) you would see the effect if you looked away from your screen. However, if you work in a daylight or office environment, your surroundings are likely close the the brightness of the display.
So try this. Make your room really dark, so that it is at least as dark as the gray of your background. Now stare at a fully white window and then look off to the side at your dark windows. You will likely see the same thing as closing the window, albeit to a lesser degree. And this can happen if only after a few moments - you don't have to look at it for very long.
