[Jeffhs]

I wouldn't go so far as to say burn-ins are impossible on LCD TVs. If this were true, after all, there would be no need for screen savers. My own LCD flat screen TV has a screen saver which starts after the TV has been displaying a stationary image for about a minute or two; the screen saver, of course, replaces the TV picture with a moving image. My computer monitor, which uses LEDs for backlighting rather than a single CCFL, has several different screen savers; one, the one I'm using now, replaces the stationary computer image with small moving dots, almost like snowflakes. My TV also uses LED backlighting.

I have never had problems with image burn-in on any computer monitor or flat-screen TV I've owned; I don't see any reason why I would have such a problem as long as the built-in screen savers work as they should.

LCD (later LED) TVs and computer monitors have come a long way since they were introduced some years ago; the technology may and likely will continue to improve as time goes on, including new methods for backlighting. Screen burn-in was a serious problem with early LCD flat-screen TVs and computer monitors, but the problem is probably nowhere nearly as bad as it once was, especially since most flat screens now use LED backlighting rather than CCFLs. That is, image burn-in may still be possible if the monitor is run at very high brightness or backlight level for extended periods of time, but under normal use I don't see this as a problem. I would think LCD/LED TVs and computer monitors which are run full blast (as they often are in store displays, or applications such as bowling-alley scoring screens) would be prone to early burn-in, but, as I said, monitors used with home computers (TVs too) will probably last much longer than monitors used at high brightness 24 hours a day. Even televisions used many hours a day shouldn't have image burn-in as long as the LED brightness (or the normal brightness control) is not set insanely high; this, of course, is a one-way ticket to premature burn-in or even outright failure of the display panel itself, if the display drivers don't fail first from severe overload.