Laptop screens dim after (how many) years

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jamess · #1 Post by **jamess** » Mon Jul 23, 2007 8:09 am

I've just heard that laptop screens on many makes and models of different vendors dim after a certain amount of time.

Now I am curious... what's the time frame when one would notice a difference? If thinkpad is your main computer, using it 8+ hours daily, would the screen dim after 2-3 years?

Thanks, i'm really curious about this...

#2 Post by **tomh009** » Mon Jul 23, 2007 8:13 am

I really have never seen that. Unless you count backlight failure as dimming.

jamess · #3 Post by **jamess** » Mon Jul 23, 2007 8:17 am

Hehe, not backlight failure but backlight losing power. My english is bad and sometimes, when i write something down, I can hardly understand myself and what i'm trying to ask. Probably because I am nervous because I have to wait for another 25 days before my new Tablet is here

Eric Giles · #4 Post by **Eric Giles** » Mon Jul 23, 2007 9:10 am

Since the backlight is basically a fluorescent tube, and over time we know that these type of lights will start to slighty lose their brightness, an LCD can become dimmer over time. I have seen it happen myself with a number of Thinkpads, some being worse than others. As far as determining a set time period when it starts to occur, well that will vary. But normally I have seen it start after about 2 to 3 years of regular use. It might not be much of a difference, but there is a slight difference from when it was new.

jamess · #5 Post by **jamess** » Mon Jul 23, 2007 9:14 am

Thank you.

bhtooefr · #6 Post by **bhtooefr** » Mon Jul 23, 2007 10:50 am

My X21 was just starting to dim after five years, and even then it was only when the screen first came on...

gunston · #7 Post by **gunston** » Fri Jul 27, 2007 4:57 am

it is more than what its value for a Thinkpad to use up to 5 yrs.
as we know, there is no perfect IT prouducts out there. In fact, tts Technology gets obsolete fast.

andyP · #8 Post by **andyP** » Fri Jul 27, 2007 5:43 am

AFIK every ligt bulb or fluorescent tube, depending on it's quality has an average expected number of "light hours". I have seen some displays advertised with 3000 light hours which is equivalent to almost 3.5 years 24 x 7.
I have looked all over to find the specs on TP displays - wo success.

Laptop screens dim after (how many) years

Laptop screens dim after (how many) years

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