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LCD's don't get burn-in I thought..
Why would Samsung install preventative measures to ward against it then? Like the thing that says "HDMI 1" moving around the screen like an idiot. I just assume they do because that's what I have heard and I have seen that.
The consensus is that LCDs can have image retention, but its not a true "burn-in" like what happens to plasma or CRT..
from the internet, must be true:
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Image Persistence on LCD monitors is not a permanent damage in most cases, unlike Burn In on CRT displays, where phosphorous is physically damaged. Liquid Crystals simply have a tendency to "remember" their states if left in one state for too long. And after that they won't respond to electrical signals the same way, so you will see some ghost images. However cycling them from one state to another multiple times usually clears up this memory effect. Also if you will leave monitor turned off for a long period of time, it will clear the memory too. But it can take several days.