Re: Is a Monitors "Life" affected by calibrated temperature settings?
Re: Is a Monitors "Life" affected by calibrated temperature settings?
- Subject: Re: Is a Monitors "Life" affected by calibrated temperature settings?
- From: Wolf Faust <email@hidden>
- Date: Wed, 01 Nov 2000 17:11:20 +0100
>
Will this high setting prematurely wear out the monitor?
It will contribute to aging but there shouldn't be a premature death. You
shouldn't expect the monitor to get the max. luminance of a new monitor
after several thousand hours usage.
I would recommend reading "Prediction and compensation of white point shift
in CRT displays resulting from aging", Richard Cappels and Thai La, Apple
Computer. Published by SPIE Proc. Vol 3648 (see
http://www.spie.org), 1999,
page 268-278. Should contain all the answers you are looking for, incl.
formulas describing the aging process for red/green/blue (blue being a bit
different).
I guess this article is based on the research done by Apple for their CMS
monitors with internal age compensation wich had the best results compared
to other high end CMS monitors with extra measurement devices (Barco,
Optimizer) in the german Ct magazine some time ago. Was pretty impressive
review for the Apple monitor.
>
Will I see a fall off of this high cd/m2 number over the 1st few months
>
of operation, then see some stabilizing over a long period of time?
Especialy during the first 100-200 hours, the monitor surely will change as
emissive materials evaporate. It actually might get better before things
start falling apart.
The basic contribution factor for changes seems to be phosphor aging and
glass browning. The blue P22 phosphor is most sensitive to aging and red
being best. This causes the hue of the monitor to shift towards yellow and
slightly red. Looking at the article, this seems vary dramaticly between
the 20 conventional monitors tested, linear increase at best. Blue P22
phosphor is aging rapidly in the beginning unlike Red/Green. But after a
while, aging seems to be pretty much linear...
So your answer: no, there seems no stabilizing over a long period of time.
Based on various aging measurements of monitors published, I would
recommend you do set the luminance of the monitor to 85% of original value.
The monitor should be able to reproduce this level for at least 5000 hours,
the typical usage for 3-4 years.
>
Lacie tech response was as follows: "The monitors shouldn't "wear
>
out".
This seems not really correct... the rest of the answer is.
--
Wolf Faust Tel: +49-69-5486556
mailto:email@hidden Fax: +49-69-95409598
http://www.coloraid.de Mobile: +49-179-6924769