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Is CRT Burn-In Still a Problem?
coloth asks: "We've all been told for many years that monitor burn-in is a thing of the past, that CRTs use a different kind of phosphor now, and that screensavers are more toys than practical safeguards. After a few minutes with Google, nearly every PC advice site I found said as much. Well, I just realized tonight that I've got burn-in from the Seti@Home screensaver on my Dell P991. I took a picture with my digital camera. (disregard the bar of interference) I added the arrows with PhotoShop and enhanced the image a bit, but the burn in is clear. Here is the image of the "screensaver" to compare the pattern. Is my monitor sub-par? Is the conventional wisdom about burn-in untrue? Are most people doing anything specific to avoid burn-in?"
I've seen an entire lab of computers with the Windows 2000 login box burned into the monitor of every single one. This may be something of an extreme case, since the displays were left on 24x7, even on nights and weekends and they were relatively cheap monitors to begin with, but burn-in is certainly still a reality.
The bottom line is that it probably doesn't matter if you leave the same thing up for a little while, but the screen should definitely be blanked/turned off the it isn't going to be used for any significant period of time - say, a half hour or more. Besides eliminating the problem of burn-in, simply turning the display off when it isn't in use will save a significant amount of energy.