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Plasma Burn-in Statistics Survey  

post #1 of 27
Thread Starter 
With all the burn-in dangers posted here, we should go ahead and do a statistical survey now that many of us have plasmas for more than a year.

This may be useful for potential buyers and for us.

Please post your number of hours on your plasma (regardless of size) and indicate if you have burn-in or not.

I have 4040 hours and no indication of burn-in.

MAB
post #2 of 27
I thought someone just did this 2-3 weeks ago.
post #3 of 27
Good idea MAB.

Panasonic.

5664 hrs.

No signs of "Burn-in.

Dave
post #4 of 27
Excellent idea! I'd definitely be interested in learning once and for all if this burn-in issue/fear is either Fact or Fiction/Myth.
post #5 of 27
Really meaningless unless you know how the plasma was used, not merely how many hours it had. For example, if all viewing was done in "normal" 4:3 aspect ratio with black sidebars, the probablity of burn-in is much greater than if a full-screen mode was always used.

A few weeks ago a member asked for reports of any actual burn-in on plasmas; IIRC despite several hundred viewings there were NO reports of significant burn-in. That was enough to convince me, at least, that plasma burn-in is pretty much a non-issue under all but the most extraordinary circumstances, such as a display left on a bright static image for dozens or hundreds of hours as might occur in a commercial setting.
post #6 of 27
steuert,

15%- 4:3

35%- 2.35:1

50%- Full Screen

But the "CENTER" of the screen is on 100% and with over 5000 hrs. under my belt I see no adverse conditions due to my viewing habits.

Do this help a little bit?

Dave
post #7 of 27
.
Panasonic TH-37PW5UZ = 835 Hours
__________________________________

5% - 4:3

30% - Full Screen

65% - 2.35:1

No signs of "Burn-in"




.
post #8 of 27
Thread Starter 
I was going to ask if in full mode or 4:3 but preferred to simplify.

Mine is:

100% full screen for SD

90% full, 10 percent whatever the OAR is for dvds.

But, Dave has an excellent point: re: the "center" of the plasma.

To make this more meaningfully to some, report only about the center of the plasma, say a square of 10" by 10".

Now, do not tell me there is more burn-in on the lower side of the screen because of the tickers:) This is not a scientific survey, rather casual.

So if you have something negative to say do not participate. If you want to help, give us your log numbers and weather or not burn-in presence.
post #9 of 27
1100 hours - no burn in.

20% Gamecube which does not fill the screen
50% 4:3 stretched
10% 4:3 not stretched
20% DVD OAR
post #10 of 27
<<Excellent idea! I'd definitely be interested in learning once and for all if this burn-in issue/fear is either Fact or Fiction/Myth.>>

It's Fiction/Myth. To some extent this thread will prove that.
post #11 of 27
Thread Starter 
Exactly.
post #12 of 27
Thread Starter 
Since no one is participating I declare among us who participated that we have 11,000+ hours & no burn-in.

As Rogo said, it is a Fiction/Myth and case closed.
post #13 of 27
Unless someone leave a static image for days, it is a Fiction/Myth and case closed.
post #14 of 27
The facts so clearly speak for themselves it's not even funny.

* Virtually no one has actually experienced and burn in here in the past 2 years or more.

* The few instances have been extreme cases and it's not clear anyone suffered irreparable damage.

* The brightness-decline curves for all plasmas are logarithmic, so it's actually far more likely burn in would occur earlier rather than later.

If someone has a serious screw-up where they do burn something in over a weekend or something, they can undo the damage by inverting the burned-in screen, either via the plasma, or with the help of a computer.

The incontrivertible fact is that the "problem" is just not that common. The corollary is that "solutions" to the problem are not really all the valuable or important.
post #15 of 27
So what about the Samsung plasma display that the features list the new multiple anti-burn technologies and claim that Samsung's Auto Pixel Shift keeps the image moving imperceptibly, while their Always White technology combines with the Signal Pattern Process to eliminate electrically charged residual images? Does this help hardcore CNN watchers?



Quick Rogo..

Burn out the day..Burn out the night
I don't see no reason for my Plasma to put up a fight..
post #16 of 27
Rogo,

Not quite true. My previous plasma (used for a year and a half) developed burn-in symptoms (slight channel logo and yellowish spot at the center).

This was a 1st gen Fujitsu, and I replaced it with a NEC plasma, which has been in use for more than 1.5 years with no adverse affects. I'm upstairs and too lazy to go down to check on the number of hours, but it's more than a few thousands. My screen is on for about 10+ hours each day on full screen always.
post #17 of 27
I know about yours, amigo. I think if you read my post carefully, it leaves the wiggle room for your situation and a few other outliers. We also both know that a 1st generation Fujitsu is not a good proxy for much of anything currently on sale now.

Cheers,
Mark
post #18 of 27
no burn- in here

Pioneer Pro1000: 1983 hours
Fujitsu P50 : 674 hours

I watch plenty of 4:3 and letterboxed material without stretching

with just a little education on how to use your plasma, burn-in should not be a concern

any surveys like this are appreciated: they continue to show that burn-in is not a problem in typical HT use
post #19 of 27
If any one has experienced real burn in can you tell us if more hours of use or white screen test made it go away?
post #20 of 27
Ok..about Ghosting....watched Star Wars (again) last night in complete dark at 1AM...After the movie, I switched off the TV. Some ghosting where the black bars were. So I switched the TV back on and used the white screen wipe, 3 scans worth. No more ghosting. I think there is definitely a relaxation lag in the pixels if they've been run for a while....you could definitely tell the pixels were still "warm" from being used.

Ghosting yes, burn in...NO...Ghosting gone after 5-10 minutes on its own? yup :)


Not quite at 1,000 hours yet, and no burn in. So we'll see....
post #21 of 27
In my experience, ghosting will fade without the need for the white screen.
post #22 of 27
Mark,

Agreed. I simply wanted to provide anecdotal evidence of ghosting vs. burn in. I almost never use the wipe screen to remove ghosting. In reality, last night was the third time I did it, and am sure it wasn't really needed as I had turned the display off for about 5 seconds before I decided to test the screen wipe for ghost removal.

It's simply a case study in phosphor relaxation time..kinda like how an MRI works. I wonder what the formula for energy decay is inside one of those little pixels....
post #23 of 27
There were a couple people who posted in the thread LCD vs Plasma about experiences with burn in. In another thread (maybe the same one) someone said their roommates played x-box all weekend while they were traveling and came home to find burn in.

Could those people please re-post over here? Were those 1st gen screens? Has the burn in gone away since then? Was it just ghosting?

Thanks
post #24 of 27
I have a Pioneer 505HD. for the first two years of its life it was a computer monitor in a network center showing the same web page (I don't know how many hours and don't see anything in the menus to tell me, likely several thousand at least though).

It has mild to moderate burn-in, at times it's not noticeable, at times it's fairly distracting. I can post pictures if anyone is interested.
post #25 of 27
Wayside, do post some pics. I will note for everyone that it's a prior-generation plasma and the current ones ought to be less burn-in prone. Still, it'd be interesting to see.

If you do a Slowest Search here, you might find the way into the service menu and be able to get an hours count, too.
post #26 of 27
OK, here are some burn-in pics of my display.

I'll first note that the tuner I use (in my VCR) will display a nice blue color if there is no signal on a particular channel.

These first two pics are of one of these blue channels, immediately after the display was powered on, in 4:3 and cinema mode. These are a portion of the display, because when the full-sized pics were scaled down you couldn't see the burn-in.

Look for a slightly darker blue triangle where the bottom side is slightly curved, that's the extent that it is visible when powered on:

http://home.comcast.net/~cjway/DSCN4234.jpg

http://home.comcast.net/~cjway/DSCN4235.jpg

These next two are the blue channel again, after the display was on and used to watch TV and a movie for about 3 hours:

http://home.comcast.net/~cjway/DSCN4237.jpg

http://home.comcast.net/~cjway/DSCN4238.jpg

The last one didn't scale down that well, but you can start to see some words from the web site this thing displayed all the time.

These last four are various TV channels I surfed after taking the last 2 blue screen pics:

http://home.comcast.net/~cjway/DSCN4239.jpg

http://home.comcast.net/~cjway/DSCN4240.jpg

http://home.comcast.net/~cjway/DSCN4241.jpg

http://home.comcast.net/~cjway/DSCN4242.jpg

It seems to show up the worst when showing sky-blue and flesh tones. It looks fairly bad in these pics, but it really isn't all that intrusive until it gets worse than this, and for movies it usually doesn't look as bad as for TV stations, I don't know why.
post #27 of 27
So the blue channel is somewhat burned out it looks like, huh? Blue phosphor life is the worst still -- and I'm sure more so in the prior generation.

This is the worst kind of burn in because it appears to be a result of the blue's beginning of fthe end.

Have you hunted down the service menu for an hours count? I'm really curious.

If you can't get into the service menu -- again Slowest Search here and/or Googling Pioneer 505 service menu -- how 'bout guesses on how many hours it was on each day? how many days/week? What color was the web page?

Mark
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