do screens still suffer from ‘burn in’

F
Posted By
fractalenthusiast
Sep 26, 2007
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327
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5
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(Apologies if this is OT, but since it’s about computers, there are a zillion newsgroups I could have chosen – I just happen to know this one well).

At the college where I work, I often have to work in a room that has 100+ computers in it.

When they’re not being used, they display a dialog box telling you how long a session is available.

This box is programmed so that it slowly moves around the screen in little jumps. With over a hundred screens doing this – and not in phase, either – it’s really annoying. No matter where I sit, I can see them out of the corner of my eye.

I’m thinking of going to the IT department to ask them if they could get these boxes to just stay where they are, but before doing this, I want to be sure there isn’t a good reason why they’re like this.

In the old days, anything in one place on a screen would eventually burn in an image, which is why screensavers were invented. But I’ve heard that burn-in doesn’t happen anymore. Is this true? And if not, would there be any other good reason for these boxes to have to move about?

The screens here are very flat ones, about a year old, BTW.

Thanks in advance.

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K
Koppe
Sep 26, 2007
On Sep 26, 12:34 pm, wrote:
(Apologies if this is OT, but since it’s about computers, there are a zillion newsgroups I could have chosen – I just happen to know this one well).

At the college where I work, I often have to work in a room that has 100+ computers in it.

When they’re not being used, they display a dialog box telling you how long a session is available.

This box is programmed so that it slowly moves around the screen in little jumps. With over a hundred screens doing this – and not in phase, either – it’s really annoying. No matter where I sit, I can see them out of the corner of my eye.

I’m thinking of going to the IT department to ask them if they could get these boxes to just stay where they are, but before doing this, I want to be sure there isn’t a good reason why they’re like this.
In the old days, anything in one place on a screen would eventually burn in an image, which is why screensavers were invented. But I’ve heard that burn-in doesn’t happen anymore. Is this true? And if not, would there be any other good reason for these boxes to have to move about?

The screens here are very flat ones, about a year old, BTW.
Thanks in advance.

Modern CRT screens (if you can call them modern) are not supposed to… and LCD-screens are certainly not supposed to.

Still, I’ve noticed that the flat *LCD* screen at my work — that pretty much
shows the same thing all day every day — appears to have been "burnt in". At least you can see a permanent "shadow" of the edges of the window it usually displays. Honestly, I didn’t think that would be possible on a LCD-display.

The different technology — and the better grasp on the old CRT-type technology — *should* prevent it on all modern screens, but it appears
that it doesn’t. (Though I guess a LCD-display can’t actually become burnt in as the old CRT ones did, but the result seems similar.)
R
ronviers
Sep 26, 2007
On Sep 26, 9:51 am, Koppe wrote:

Modern CRT screens (if you can call them modern) are not supposed to… and LCD-screens are certainly not supposed to.

Hi,
I have heard that too and I don’t know about LCDs but I do know beyond any doubt that if you leave the same pixels excited on a CRT, even a modern one, that area will be visible with either the monitor off or showing a bright screen – I have seen it.

Ron
JP
John Passaneau
Sep 26, 2007
"" wrote in
news::

On Sep 26, 9:51 am, Koppe wrote:

Modern CRT screens (if you can call them modern) are not supposed to… and LCD-screens are certainly not supposed to.

Hi,
I have heard that too and I don’t know about LCDs but I do know beyond any doubt that if you leave the same pixels excited on a CRT, even a modern one, that area will be visible with either the monitor off or showing a bright screen – I have seen it.

Ron

Hi All
I’ve read that flooding the screen with a bright white image, just what in the old days would have been called a "raster" will cure that. It may take a few hours of the white screen but it’s supposed to fix the problem.

John
DB
Dick Ballard
Sep 26, 2007
I didn’t think an LCD would burn in, but I’m not certain. As for those CRT’s, I think it would be best to just blank them after a preset non-use period. The log in or session time notification would come up with keyboard or mouse action. I see no reason to have anything on the screen during non use for any type of display (except perhaps for entertainment value).

My practice for LCD screens is to have them turn off (in the Power Options Properties box) after some period (10-30 minutes or so) of non-use. No screen saver. Reason is that the light source behind many LCD’s is fluorescent and gets dimmer as more hours of use accumulate.

Dick Ballard

On Wed, 26 Sep 2007 03:34:36 -0700, wrote:

(Apologies if this is OT, but since it’s about computers, there are a zillion newsgroups I could have chosen – I just happen to know this one well).

At the college where I work, I often have to work in a room that has 100+ computers in it.

When they’re not being used, they display a dialog box telling you how long a session is available.

This box is programmed so that it slowly moves around the screen in little jumps. With over a hundred screens doing this – and not in phase, either – it’s really annoying. No matter where I sit, I can see them out of the corner of my eye.

I’m thinking of going to the IT department to ask them if they could get these boxes to just stay where they are, but before doing this, I want to be sure there isn’t a good reason why they’re like this.
In the old days, anything in one place on a screen would eventually burn in an image, which is why screensavers were invented. But I’ve heard that burn-in doesn’t happen anymore. Is this true? And if not, would there be any other good reason for these boxes to have to move about?

The screens here are very flat ones, about a year old, BTW.
Thanks in advance.
R
ronviers
Sep 26, 2007
On Sep 26, 2:26 pm, John Passaneau wrote:
":

On Sep 26, 9:51 am, Koppe wrote:

Modern CRT screens (if you can call them modern) are not supposed to… and LCD-screens are certainly not supposed to.

Hi,
I have heard that too and I don’t know about LCDs but I do know beyond any doubt that if you leave the same pixels excited on a CRT, even a modern one, that area will be visible with either the monitor off or showing a bright screen – I have seen it.

Ron

Hi All
I’ve read that flooding the screen with a bright white image, just what in the old days would have been called a "raster" will cure that. It may take a few hours of the white screen but it’s supposed to fix the problem.
John

Hi John,
That’s interesting. I got one a few weeks ago that was so bad I just tossed it. Now I wish I had it back. It was really bad though. The machine must have sit idle for years.

Thanks,
Ron

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