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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

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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