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Definition of "Afterimage" |
A temporary or permanent condition of a display that results in an image left on the screen even though it is no longer being displayed. Image burn-in was always a problem with CRT displays as the phosphor applied to the back of the screens decayed. However, LCD screens also suffer from burn-in as the pixels degrade either from time or over-use. In both cases the ghost-image occurs when some pixel locations are used more than others, causing only those pixels to degrade [at a faster rate], which causes the ghost image. The after-effect of leaving a static display on a screen for some duration of time, with the static-image than becoming the ghost image as the display is changed. |
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