Dead/Stuck Pixels and Shutdown of Computer?

The theory's a load of crap. The person who told you this knows nothing about computers, ignore them.

 

Yes, these stuck pixels will spread from salesman to salesman.

It's called stupidity, and it's an insidious salesmoron virus that hovers around them and tries to snare customers -- so they can sell Store Warranties and make some extra cash.

The backlight behind LCD is likely to wear out quicker than the LCD panel, and you're likely to break the actual LCD panel or toss the computer due to age before you ever wear out the LCD pixels.

 

Unless it's a logic board issue, and the pixels themselves aren't "dead", one dead pixel will not cause another one to die. Period.

Also, if anyone mentions the "just rub the dead pixel and it will come back to life" thing to you: it's bunk, it's possible to damage neighboring pixels, and it will almost undoubtedly scratch your screen. Perhaps, one time out of a hundred, with a particular cause of dead pixel, it works. Maybe. But it's a bad idea. Just mentioning that because all too often someone "helpfully" posts in with a recommendation to do that. I was leafing through an Apple service manual at Borders last night (oh, the fun that I have!) - mainly because I was amazed to see an Apple service manual at Borders - and it specifically mentioned the dead pixel rubbing "remedy" as useless and potentially destructive to the screen. It even informed the tech to look for scratch marks to determine if other pixels had been damaged by attempting this technique.