How susceptible is a LED to ESD; specifically, the backlight LEDs in a liquid crystal display?
LED susceptibility to ESD?
Feb 06, 2012
11 Replies
I've taken out drivers and hosed systems, zapping LCDs but never a backlight. Don't know if there was any latent damage, though. If you're worried, put an anti-parallel diode across them.
If you are zapping an LED display, you are likely going to fail drive circuitry before you fry any of the LEDs. As you zap an LED, the driver circuit for it likely gets worse damage.
"garyr" wrote in news:jgpogg$r32$ snipped-for-privacy@speranza.aioe.org:
consider that you can generate 2000 V or more before feeling the discharge. Do you think a LED will take a 2 KV spike? remember that ESD can not only kill a device immediately,it can damage it to fail later,much earlier than its usual life.
Jim Yanik
jyanik
at
localnet
dot com
Nowhere near as sensitive as diode Lasers. Now, those are sensitive.
Thanks for all the comments. Gary Richardson
That is because they get modulated. The gate is what gets fried.
Diode lasers don't have a gate.
-- Boris
Boris, I'd like you to meet the resident SED expert on absolutely nothing, AlwaysWrong. I don't know what he does other than breathing other people's air and making a fool of himself on Usenet. As usual.
How do they get switched at 10Gb/s then? Certainly more susceptible than a simple continuous laser diode for a 'laser pointer'.
You do not know ANYTHING about me, you pathetic, cringing milksop!
I only need to know one thing. That you're AlwaysWrong.
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