Blotchy LCD panel.

Hi all,

I have a four year old Samsung 32" LCD telly which doesn't seem to be
wearing very well. It's sprouted some dark patches on the panel...

http://www.stamp.plus.com/Photos/duff_telly.JPG

It's not all that bad yet - I had to select the shade of grey quite
carefully to get it to show-up for the photo. It is noticeable fairly
often when watching TV though, so it's given me an excuse to look for a
new set. Every cloud has a silver lining )

I just wondered whether anyone else has seen this kind of deterioration.
It's not something I expected on an LCD. It's used as a PC monitor quite
a lot and it often ends up showing a static image for quite a while. I
don't recognise the shape of the blotches though.
Another possibility is that it occasionally cops some direct sunlight
through a venetian blind, which might account for the horizontal lines,
though I'd have thought the shadows would have swept across the screen
as the sun moved.

Any ideas?

Cheers,

Colin.

Hi all,

I have a four year old Samsung 32" LCD telly which doesn't seem to be wearing very well. It's sprouted some dark patches on the
panel...

http://www.stamp.plus.com/Photos/duff_telly.JPG

It's not all that bad yet - I had to select the shade of grey quite carefully to get it to show-up for the photo. It is noticeable
fairly often when watching TV though, so it's given me an excuse to look for a new set. Every cloud has a silver lining )

I just wondered whether anyone else has seen this kind of deterioration. It's not something I expected on an LCD. It's used as a
PC monitor quite a lot and it often ends up showing a static image for quite a while. I don't recognise the shape of the blotches
though.
Another possibility is that it occasionally cops some direct sunlight through a venetian blind, which might account for the
horizontal lines, though I'd have thought the shadows would have swept across the screen as the sun moved.

Any ideas?

Cheers,

Colin.

Me too Colin, probably a bit worse than yours if anything.
Samsung LE32R87BD. What's yours.
The blotchiness and the burn-in seem to be related, some people think LCDs
don't suffer from burn-in, these do!

Seems to be worse when it's been on a while, I've considered putting a fan or two on the ventilation slots.

--
Graham.

%Profound_observation%

On Fri, 14 Jan 2011 20:25:35 -0000, "Graham." wrote:

Hi all,

I have a four year old Samsung 32" LCD telly which doesn't seem to be wearing very well. It's sprouted some dark patches on the
panel...

http://www.stamp.plus.com/Photos/duff_telly.JPG

It's not all that bad yet - I had to select the shade of grey quite carefully to get it to show-up for the photo. It is noticeable
fairly often when watching TV though, so it's given me an excuse to look for a new set. Every cloud has a silver lining )

I just wondered whether anyone else has seen this kind of deterioration. It's not something I expected on an LCD. It's used as a
PC monitor quite a lot and it often ends up showing a static image for quite a while. I don't recognise the shape of the blotches
though.
Another possibility is that it occasionally cops some direct sunlight through a venetian blind, which might account for the
horizontal lines, though I'd have thought the shadows would have swept across the screen as the sun moved.

Any ideas?

Cheers,

Colin.

Me too Colin, probably a bit worse than yours if anything.
Samsung LE32R87BD. What's yours.
The blotchiness and the burn-in seem to be related, some people think LCDs
don't suffer from burn-in, these do!

Seems to be worse when it's been on a while, I've considered putting a fan or two on the ventilation slots.

I think we've discussed this before. I have a feeling that last time I
investigated this the simplest recommendation was to leave it switched
off for a few days.

A Google, or whatever, search for "LCD image retention" or "LCD image
persistence" will find lots of comments and articles on the subject.

--
Peter Duncanson
(in uk.tech.digital-tv)

On 14/01/11 20:25, Graham. wrote:

Me too Colin, probably a bit worse than yours if anything.
Samsung LE32R87BD. What's yours.

It's LE32R74BD. I think yours is younger than mine.

The blotchiness and the burn-in seem to be related, some people think LCDs
don't suffer from burn-in, these do!

It's all a bit disappointing really. Whatever's causing it, the telly is
well on the way to being knackered after just a few years.


Seems to be worse when it's been on a while, I've considered putting a fan or two on the ventilation slots.

It might be worth a try, though I haven't noticed that effect on mine.
The photo was taken with the panel cold.

Cheers,

Colin.

On 14/01/11 21:27, Peter Duncanson wrote:

I think we've discussed this before. I have a feeling that last time I
investigated this the simplest recommendation was to leave it switched
off for a few days.

That's assuming it *is* "image retention". The blotchiness doesn't look
like that to me. It doesn't bear any resemblance to anything the PC
normally ends up showing. If anything was getting burned in, I'd expect
it to look like a Club Penguin character.


A Google, or whatever, search for "LCD image retention" or "LCD image
persistence" will find lots of comments and articles on the subject.

But the accompanying pictures tend not to look like the damage on my
screen. They look like the images that burned them, not just vague smudges.

Having said that, The PC will have a screen-saver before the new telly
arrives...

Cheers,

Colin.

On 14/01/11 22:36, Java Jive wrote:
Have you checked for any manufacturer's warranty still in force?

I'd assumed it was only warranted for a year.

Also, I've had at least one letter telling me the manufacturers warranty
has expired, so it must be true ;o)

Cheers,

Colin.

On Fri, 14 Jan 2011 23:06:52 +0000, Colin Stamp
wrote:

On 14/01/11 21:27, Peter Duncanson wrote:

I think we've discussed this before. I have a feeling that last time I
investigated this the simplest recommendation was to leave it switched
off for a few days.

That's assuming it *is* "image retention". The blotchiness doesn't look
like that to me. It doesn't bear any resemblance to anything the PC
normally ends up showing. If anything was getting burned in, I'd expect
it to look like a Club Penguin character.


A Google, or whatever, search for "LCD image retention" or "LCD image
persistence" will find lots of comments and articles on the subject.

But the accompanying pictures tend not to look like the damage on my
screen. They look like the images that burned them, not just vague smudges.

Yes.

I had a longer look at the picture you posted. It is difficult to
imagine what image could have caused that effect.

Having said that, The PC will have a screen-saver before the new telly
arrives...

Cheers,

Colin.


--
Peter Duncanson
(in uk.tech.digital-tv)

"Colin Stamp" wrote in message
o.uk...
Hi all,

I have a four year old Samsung 32" LCD telly which doesn't seem to be
wearing very well. It's sprouted some dark patches on the panel...

http://www.stamp.plus.com/Photos/duff_telly.JPG

It's not all that bad yet - I had to select the shade of grey quite
carefully to get it to show-up for the photo. It is noticeable fairly
often when watching TV though, so it's given me an excuse to look for a
new set. Every cloud has a silver lining )

I just wondered whether anyone else has seen this kind of deterioration.
It's not something I expected on an LCD. It's used as a PC monitor quite a
lot and it often ends up showing a static image for quite a while. I don't
recognise the shape of the blotches though.
Another possibility is that it occasionally cops some direct sunlight
through a venetian blind, which might account for the horizontal lines,
though I'd have thought the shadows would have swept across the screen as
the sun moved.

Any ideas?


I don't know how the cold cathode fluorescent tube or tubes are typically
arraigned behind a LCD panel, but could it be that one, or part of one is
failing?

--

Brian Gregory. (In the UK)

To email me remove the letter vee.

On 14/01/2011 19:29, Colin Stamp wrote:
Hi all,

I have a four year old Samsung 32" LCD telly which doesn't seem to be
wearing very well. It's sprouted some dark patches on the panel...

http://www.stamp.plus.com/Photos/duff_telly.JPG

It's not all that bad yet - I had to select the shade of grey quite
carefully to get it to show-up for the photo. It is noticeable fairly
often when watching TV though, so it's given me an excuse to look for a
new set. Every cloud has a silver lining )

I just wondered whether anyone else has seen this kind of deterioration.
It's not something I expected on an LCD. It's used as a PC monitor quite
a lot and it often ends up showing a static image for quite a while. I
don't recognise the shape of the blotches though.
Another possibility is that it occasionally cops some direct sunlight
through a venetian blind, which might account for the horizontal lines,
though I'd have thought the shadows would have swept across the screen
as the sun moved.

Any ideas?

Cheers,

Colin.

Had a customer with a Samsung LCD TV with the same problem. After much
complaining Samsung, via the retailer replaced the TV.

Glenn.

I'd have thought the shadows would have swept across the screen
as the sun moved.



sun....

and we assumed you were in the UK.