What is the Expected Lifetime for LED Backlights?

Published on Friday, 03 June 2011 18:10

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The short answer: 50,000 to 70,000 hours for most colors except blue and white (5.7 to 8 years of continuous running). Blue and white are rated at 30K hours (3.4 years of continuous running). The long answer: There are two definitions in the industry for “lifetime” · Half-life: this is when the LED will be half as bright as when the LED was first turned on. · MTBF (Mean-time between failures). This is when there is a 50% chance that the LED will fail. There are many studies on the subject of ‘lifetime”. Each study claims a different number of hours. One thing to take into account is that as technology improves, the lifetime of the LED’s will become longer.