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treysmay
Jul 7, 2005, 08:08 PM
how long is the life of an LCD?
generally an apple LCD



Mood
Jul 7, 2005, 09:14 PM
usually longer than you'll live

grapes911
Jul 7, 2005, 09:22 PM
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
Jul 7, 2005, 09:24 PM
usually longer than you'll live

Is that where they derive the term "life-time warranty" as in not the products life but yours? ;)

dmw007
Jul 7, 2005, 09:30 PM
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
Jul 7, 2005, 09:39 PM
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
Jul 7, 2005, 10:04 PM
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
Jul 7, 2005, 10:11 PM
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
Jul 7, 2005, 10:16 PM
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.

mkrishnan
Jul 7, 2005, 10:23 PM
In general, constantly turning something on and off is gonna wear away at that products lifespan.

Yeah, true, in hindsight, it is moronically obvious. :o But it's particularly true of certain kinds of bulbs.... :)

dmw007
Jul 7, 2005, 10:25 PM
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
Jul 7, 2005, 10:28 PM
Yeah, true, in hindsight, it is moronically obvious. :o 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...