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Use Xbench to fix screen burn-in
Authored by: glusk on Jan 27, '09 11:31:42AM

OK, I have no idea why LCD displays "burn-in" and I've been in the A/V display industry for a long time. The phosphors in CRT and Plasma displays (and cameras using tube pickups) burn fairly easily and you can usually use a white image to burn the entire image to the same level.

Liquid Crystal Displays are a different technology and, frankly, I don't understand why they "burn-in". But I have definitely seen it on several occasions, although it usually takes quite a bit longer for this to happen than a phosphor-based technology. Are the crystals in the liquid getting stuck? Often using a changing pattern will "un-stick" the stuck pixels or on screens with live video, the "burned" image simply works itself out over time.

I'd love to understand more about LCDs getting "burned-in".



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Use Xbench to fix screen burn-in
Authored by: tooki on Jan 29, '09 04:58:26AM
The effect being described here is NOT burn-in. Burn-in means a permanent latent image. CRTs and plasmas can suffer burn-in, LCDs cannot.

LCDs (and plasmas, but not CRTs) suffer from an unrelated phenomenon called image persistence. See http://en.wikipedia.org/wiki/Image_persistence

All it takes to fix it is to have the pixels flip back and forth a few times, kinda like exercise.

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