LCD Monitor

PowerMacG5

Diamond Member
Apr 14, 2002
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I have been using LCD monitors for about 2 years now, and I love them. But I have a question. I am currently using the Viewsonic VA520 15 inch LCD monitor. Because I know that a CRT monitor will burn an image into the screen if the image is left on the monitor and not changed for a while, it sparked this question: Will an LCD monitor burn an image into the glass, as with a CRT if it is left on the same image over an extended period of time? If so, how long will it take to burn that image into an LCD? I know on a CRT that the image isn't actually burned onto the glass, but onto the reactive coating underneath the glass that reacts from the electrons shot out from the electron coating. The first questions is basically asking if an LCD has a coating that will do the same thing.
 

sohcrates

Diamond Member
Sep 19, 2000
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A common misconception with LCD displays is that they do not burn
images into the screen that are displayed for extended periods of time.
Older CRTs and TVs where plagued by this phenomena. LCD, unlike
CRTs are able to recover from a screen burn. The general rule of thumb is
that it takes at least 24 hours for an image to be noticeably burned, and
double that time for the screen to revert back to normal. During this
recovery time, the display must be turned off.

? Life of Backlight
The phosphorescent backlight found behind the LCD only has a certain
life span before it fades and does not produce as much light. It is
recommended that when the display is not in use that it either be put to
sleep or tuned off. Screen savers may be used, however, they require the
backlight to remain on and will decrease its overall lifespan.

(thank you google) :)