LCD life?


grapes911

Moderator emeritus
Jul 28, 2003
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Citizens Bank Park
I don't know what Apple says about their LCDs, but most LCD manufactures rate their product anywhere from 20,000 - 80,000 hours. Some are more and some cheep ones are less.
 

dmw007

macrumors G4
May 26, 2005
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grapes911 said:
I don't know what Apple says about their LCDs, but most LCD manufactures rate their product anywhere from 20,000 - 80,000 hours. Some are more and some cheep ones are less.
Seems to be true. We have ~40 Dell LCDs at work that were purchased ~4-5 years ago and all are working fine (and they are left on pretty much 24/7).
 

mkrishnan

Moderator emeritus
Jan 9, 2004
29,641
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Grand Rapids, MI, USA
dmw007 said:
Seems to be true. We have ~40 Dell LCDs at work that were purchased ~4-5 years ago and all are working fine (and they are left on pretty much 24/7).
I think that's an important part too... The bulbs wear a lot when they are power cycled, don't they? FWIW, that is the main failure mode -- the backlight dying.
 

dmw007

macrumors G4
May 26, 2005
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mkrishnan said:
I think that's an important part too... The bulbs wear a lot when they are power cycled, don't they? FWIW, that is the main failure mode -- the backlight dying.
In general, constantly turning something on and off is gonna wear away at that products lifespan.
 

Mood

macrumors regular
Jun 29, 2005
220
0
NY
electrical current changes the atomic structure of the wires and resistors into a different state, and if you keep on turning it on and off it gets warped in a sense.

leaving it on means it'll maintain its electrical atomic structure instead of constantly changing it.

(does this make sense or just pure bull?)
 

theonenonlyjoey

macrumors member
Aug 26, 2004
88
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San Jose, CA
my 22 inch cinema display's (DVI not ADC) backlight went bad and the whole panel was replaced 3 years ago while it was under warranty. probably a faulty unit though. can't say for sure what the real life of it would be.
 

dmw007

macrumors G4
May 26, 2005
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Working for MI-6
Mood said:
electrical current changes the atomic structure of the wires and resistors into a different state, and if you keep on turning it on and off it gets warped in a sense.

leaving it on means it'll maintain its electrical atomic structure instead of constantly changing it.

(does this make sense or just pure bull?)
Sounds ok to me. Then again, I am by no means an electrician. :rolleyes:
 

dmw007

macrumors G4
May 26, 2005
10,635
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Working for MI-6
mkrishnan said:
Yeah, true, in hindsight, it is moronically obvious. :eek: But it's particularly true of certain kinds of bulbs.... :)
Things in hindsight tend to always be 20/20. Or usually 20/20.

Guess I had best not turn my PowerMac G5 on too many times...