Typical lifespan on an LCD backlight?

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Whipsmack

Gawd
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I use my monitor A LOT!!!, the computer i'm on is shared a lot too so I wouldn't doubt if the monitor is on 12+ hours a day.

I was looking at some warranties, where if I pay $60 more newegg will give me an EXTENDED warranty...that means 3 years manufacturer + 3 years extended....in 6 years time the backlight would SURELY die by then, so that $60 investment would totally be worth it don't you think? I mean for someone who uses their monitor very heavily...

What do you think the typical hour lifespan is on the backlight? And is the backlight the only thing that breaks with time?
 
Whipsmack said:
I use my monitor A LOT!!!, the computer i'm on is shared a lot too so I wouldn't doubt if the monitor is on 12+ hours a day.

I was looking at some warranties, where if I pay $60 more newegg will give me an EXTENDED warranty...that means 3 years manufacturer + 3 years extended....in 6 years time the backlight would SURELY die by then, so that $60 investment would totally be worth it don't you think?
Click to expand...

Not necessarily.

Typical lifespan of a backlight is 50,000 hours. If you run 12 hours a day the backlight should last 11 years.
 
I was wondering the same thing as well . How long a lcd monitor let alone lcd tv would usually last for ?
 
What do you mean "lifetime" They change constantly.... good read here from planar monitor engineers:
http://blog.planar.com/embedded/2006/01/crts-lcds-tale-of-tape.html

LCD's luminance is controlled by the luminosity of the backlight / edgelight. The backlights in LCD monitors are almost always CCFL (cold cathode florescent lamps). The life of the backlight is determined by how long it takes until the lamp reaches half of its original luminance. Similar to CRTs phosphors in CCFL’s age and their efficiency declines. LCD's don't suffer from flicker, or image burn just a few years ago that time was about 30,000 hours. Newer lamp technology has increased that time to 60,000 hours to reach half brightness.
 
Considering my backlight is at least 3 times as bright as I can stand it at 100% brightness setting, even if it fades to 50% after 11 years, I will STILL have to turn it down. So maybe in about 15 or 20 years it will be about right!
 
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