burned-in screen repair

[bob smith]

Does anyone know if there's a way to repair burned-in screens? Or do you pretty much always just need to get a new screen?

 

[Darklight]

Does anyone know if there's a way to repair burned-in screens? Or do you
pretty much always just need to get a new screen?

if by burned in you mean a crt, yes new screen it is.

 

[micky]

if by burned in you mean a crt, yes new screen it is.

Apolgies for adding on to a question, without helping to answer, but I
was told that only monocolor CRT screens could burn in. That color
CRT monitors didn't. Was I told wrong?

I've been relying on that and not worrying if in the morning the
screen saver hadn't kicked in. (Sometimes the screen goes black, much
less often the screen saver does come on , and the rest of the time
the screen is displaying whatever it had when I lieft the computer 12
hours earlier. )

 

[bob smith]

Apolgies for adding on to a question, without helping to answer, but I

was told that only monocolor CRT screens could burn in. That color

CRT monitors didn't. Was I told wrong?



I've been relying on that and not worrying if in the morning the

screen saver hadn't kicked in. (Sometimes the screen goes black, much

less often the screen saver does come on , and the rest of the time

the screen is displaying whatever it had when I lieft the computer 12

hours earlier. )

I'm pretty sure I've seen burn-in on color CRT monitors.

 

[micky]

I see no reason why color CRTs would not be just a susceptible to
burn-in, as they are basically three monochrome monitors overlaid upon
each other.

To clarify, neither do I know why there would be a difference, but I
know I read that somewhere that seemed reliable. Since it seems I'm
not as clever as my mother said I was, I thought maybe I'd missed
something. It is still hard to tell since Windows now comes with
screen savers built in.

 

[Paul]

To clarify, neither do I know why there would be a difference, but I
know I read that somewhere that seemed reliable. Since it seems I'm
not as clever as my mother said I was, I thought maybe I'd missed
something. It is still hard to tell since Windows now comes with
screen savers built in.

There's an explanation here.

http://en.wikipedia.org/wiki/Screen_burn-in

"Modern CRT displays are less susceptible than older CRTs because they
have a layer of aluminum behind the phosphor which offers some protection.
The aluminum layer was provided to reflect more light from the phosphor
towards the viewer. As a bonus, the aluminum layer also prevented
ion burn of the phosphor. And the ion trap, common to older monochrome
CRT displays, was no longer required."

It's the design of the tube that changed.

HTH,
Paul

 

[micky]

There's an explanation here.

http://en.wikipedia.org/wiki/Screen_burn-in

"Modern CRT displays are less susceptible than older CRTs because they
have a layer of aluminum behind the phosphor which offers some protection.
The aluminum layer was provided to reflect more light from the phosphor
towards the viewer. As a bonus, the aluminum layer also prevented
ion burn of the phosphor. And the ion trap, common to older monochrome
CRT displays, was no longer required."

It's the design of the tube that changed.

That explains it. And everyone's right, even when one had two
seemingly contradictory beliefs. . What a great ending.

Thanks, Paul

 

[larrymoencurly]

On Thu, 31 Jan 2013 10:07:17 +0000, Darklight

I was told that only monocolor CRT screens could burn in.
That color CRT monitors didn't. Was I told wrong?

You were told wrong by somebody who had never been to an
airport before this century. Back then you could regularly
see color CRT monitors there with flight schedules permanently
burned into their screens, sometimes so badly that the marks
were visible even when the monitors were running.

 

[Rob]

Seen burn-in umpteen times on CRTs, the logos on Sky TV and digiboxes in
the top corners was the cause.... usually when folks watch the same old
channel time and time again with a high contrast level, but funny thing
is I've never seen it done with games console's that display a static
image.

Seen it many times too on security cameras, where the have been mounted
with a bright light in view... it leaves a ghostly image.

As already been mentioned there is only one cure - a new tube!

And good luck with that, as most (all?) manufacturers of new CR tubes
have now switched their production lines to producing TFT or other
flat panels.

 

[micky]

And good luck with that, as most (all?) manufacturers of new CR tubes
have now switched their production lines to producing TFT or other
flat panels.

IF you can't find a new CRT, just set up the opposite picture,
darrkness where the bright light was, and bright light everywhere
else, and let it run like that for a year or two. You'll be fine.