The data sheet for the display we're using specifies an LED lifetime of
10,000 hours minimum. I expect that's probably a conservative spec.
I've had mine on for thousands of hours so far with no noticeable change.
Alan N1AL
On 3/11/2013 10:42 PM, Ron D'Eau Claire wrote:
I'm not certain, but I believe the backlight on the P3 is an LED panel.
Whatever it is it's in integral part of a sandwich about 0.2 inches thick
comprising the whole display.
73 Ron AC7AC
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Vic K2VCO
Sent: Monday, March 11, 2013 9:40 PM
To: [email protected]
Subject: Re: [Elecraft] P3 burn-in concerns?
Many times when the "backlight burns out" on a computer monitor it is not
the backlight at all, but rather the switching supply for the backlight
that's failed. I've fixed a couple of these.
On 3/11/2013 7:12 PM, david Moes wrote:
That would depend if the backlight is LED or cold cathode. I service
equipment with
LCD displays with both types of backlights and burnout is very very rare.
on small
screens like the P3 the light is not being pushed hard and should last a
long long time.
As for burn in. One of our machines with a 14 inch LCD display does in
fact burn
in. It takes a many months of displaying the same image 24/7. The
customer never
sees the burn as that part of the screen never changes. but with the
different screens
I use in diagnostics I can see it. If I leave it on a full white
screen over night
it disapears and doesnt seem to come back for another several months so
the burn in
seems to not be permanent. on the P3 I doubt this will ever be an
issue.
David Moes
[email protected]
VE3DVY
On 3/11/2013 6:39 PM, Ralph Parker wrote:
No. The only possible issue is backlight failure, just like your
computer or TV screen.
Tnx, Ron, just what I was hoping to hear.
I usually turn the radio on in the morning, and off in the evening,
longer periods only in a contest.
Should I be concerned about the backlight? I've only had two burn
out, one in a laptop (NEC) and one on a desktop monitor (Dell).
I would suppose that the entire display module would have to be replaced.
Ralph, VE7XF
--
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco/
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