LCD burn-in?

Kaldskryke

[H]ard|Gawd
Joined
Aug 1, 2004
Messages
1,346
I thought only burn-in only occurred with plasma, crt, or other phosphor based displays because the phosphors degrade with use. However, I'm clearly seeing burn-in on a Dell 2007FPb A05 LCD monitor at my work, although it's only really noticable on grey backgrounds. I'm really just curious what physical phenominon is causing this. Anyone want to explain it?
 
I think on LCD's it's called image persistence.. I get that on my 2007fp's at home once in a while..but its usually if i have a dark area on a light background for a long time, it ends up with a slightly shaded spot, but if you leave it alone it'll fade away after a bit
 
Each sub-pixel of LCD monitor have transparent electrodes on the front and back side, if monitor is viewing same static image few days or week the electrodes can "burn" cause there flowed same current non stop for a long time and they changed color, that is result of keeping monitor turned on for a long time, this effect affects information panels on the stations, airports, malls, monitors in surveillance systems...etc, where is non stop online status required. This effect depends on the image viewed. Your LCD panel can burn in shorter time if the image is very contrast, for example white window on the black background, or black font on the white background.
 
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