I've wondered this for a while. I know before they would literally "save" the screen from burning but why do they still exist? I don't have one because I don't see the point.
Well, I use a screensaver when I lock my screen to keep curious eyes off my screen when I'm away from my desk.
You could just turn the screen off. A screen saver may look better but just wastes energy and doesn't have a real benefit apart from the aesthetic.
The only way to turn off the Thunderbolt displays is to either unplug them or put the computer to sleep. When you have active tasks running, putting the computer to sleep is not an option.
I've wondered this for a while. I know before they would literally "save" the screen from burning but why do they still exist? I don't have one because I don't see the point.
The phosphor burn-in explanation is correct. This was the original purpose for screen savers.It's a throwback to the CRT days to help prevent phosphor burn-in if anyone else is wondering. Now it's used for aesthetic/personalisation purposes. Plus, I think some people still use CRT's because they prefer the colours presented by those displays. I suppose it can also be useful for in-store displays in Apple stores.
There the only reasons I can think of as to why it still exists.
No hardware benefit. The UI benefit is that you can see that the computer is still running, not asleep.I've wondered this for a while. I know before they would literally "save" the screen from burning but why do they still exist? I don't have one because I don't see the point.