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A reader asks:
“I use a 32-inch LCD TV for my home office display, connected to my PC using HDMI. I also use it for my PS3 and Wii to prevent a Shining ‘all work and no play’-type incident, so it gets quite a lot of use every day. I left town over the weekend and unthinkingly left a fixed image on the display. When I got back, I found that the image had burned in. I thought LCD displays wouldn’t do that, but I was clearly mistaken. The ocean image that was displayed left shadows of the waves across the display. Is there a way to get rid of this problem, or at least minimize it?”
It was a widespread myth for a while that transmissive displays like LCDs weren’t subject to image persistence (a.k.a. burn-in), but it is more accurate to say that they are less subject to burn-in than phosphor-based displays such as CRTs and color plasma. The good news is that on an LCD it can usually be reversed but on a CRT it is usually permanent.
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