anybody know anything about led?

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xixiliu · #1 Post by **xixiliu** » Mon Jun 09, 2008 9:44 pm

t500 can come with led. is led good enough for me to pay another 100 or 200 $? 'cause they say lde screens are too white or not bright enough. is that true?

snessiram · #2 Post by **snessiram** » Tue Jun 10, 2008 4:10 pm

You can search for "ccfl vs led" in a search engine to find articles like this one. Advantages seem to be that screens can be thinner and that led's don't dim over time (they just stop working at a certain moment).

mattbiernat · #3 Post by **mattbiernat** » Tue Jun 10, 2008 4:13 pm

snessiram wrote:(they just stop working at a certain moment).

seems like not much of an advantage...

#4 Post by **erik** » Tue Jun 10, 2008 5:34 pm

mattbiernat wrote:
snessiram wrote:(they just stop working at a certain moment).
seems like not much of an advantage...

it's a huge advantage. the average LED lasts over 6 years if used at full brightness 24 hours per day. you can expect 15+ years out of today's LED-backlit displays—much longer than CCFL lasts without serious degradation.

chances are that you'll sell your LED-backlit notebook long before the display dies.

Troels · #5 Post by **Troels** » Tue Jun 10, 2008 6:39 pm

That's what i would have thought too just 10 minutes ago, until i saw this data sheet:

http://www.beck-oled-lcd-tft-display.de ... X6-100.pdf

It says a min. of 10,000 Hrs, but that does sound very conservative, and does leave the afterthought that they don't expect it to last much longer than your typical CCFL.
10,000 hours is just a year and a month

hmmm

#6 Post by **erik** » Tue Jun 10, 2008 7:40 pm

i've seen datasheets with 50,000 hours MTBF so 10,000 is low.

my X300 can be extended up to 5 years of warranty so i'm not too worried about it.

anybody know anything about led?

anybody know anything about led?

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