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| Registered: April 13, 2007 |  Posts: 651 |
| | Posted: | | | | In a Norwegian article they have tested a new 50" Plasma screen from Panasonic that caught my attention. Well, in the article they said it was only a 1024x768 resolution, so it wasn't that interested for me. But one thing I saw made me wonder alittle. From the manual they have a warning regarding burnt-in pictures(hope this is the right english terminology) on Plasma screens. The warning gives some examples on what's a static picture that may cause burnt-in pics: Logos from TV companies (can't do so much about that anyway) Videogames (maybe obvious) Computer attatched to the plasma screen (obvious too) And finally the warning that made me  : Movies watched in 4:3 modeHmm do they really mean that we should NOT watch 4:3 material? Or do they mean we should zoom the picture to cover the whole screen, wich means everything gets out of proportion. Anyway if a 4:3 screen gives a burnt-in picture, wouldn't 2.35:1 movies do the same?  They forgot to mention that... | | | "What's God?"
"You know when you want something really bad and you wish for it?, God's the guy that ignores you"
-The Island, Steve Buscemi | | | | Last edited: by bentyman |
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| Registered: January 1, 2009 | Reputation:  |  Posts: 3,087 |
| | Posted: | | | | From my Plasma I know this effect. But on watching 4:3 movies?!  Could be if the pic is cut on left and right with a colour. Mine does it in grey. But I do use a zoom in this cases, so I never seen what will happen. |
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| Registered: March 13, 2007 | Reputation:  |  Posts: 5,494 |
| | Posted: | | | | Quoting bentyman: Quote:
And finally the warning that made me : Movies watched in 4:3 mode
Hmm do they really mean that we should NOT watch 4:3 material? Or do they mean we should zoom the picture to cover the whole screen, wich means everything gets out of proportion. Anyway if a 4:3 screen gives a burnt-in picture, wouldn't 2.35:1 movies do the same? They forgot to mention that... position the Screen so you are facing North at all times and you won't have this problem............ NOT...  | | | In the 60's, People took Acid to make the world Weird. Now the World is weird and People take Prozac to make it Normal.
Terry |
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| Registered: April 13, 2007 | | Posts: 651 |
| | Posted: | | | | Quoting widescreenforever: Quote:
position the Screen so you are facing North at all times and you won't have this problem............
NOT... HEHE | | | "What's God?"
"You know when you want something really bad and you wish for it?, God's the guy that ignores you"
-The Island, Steve Buscemi |
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| Registered: September 30, 2008 | | Reputation: | | Posts: 1,805 |
| | Posted: | | | | What I think they may be talking about, and my parents have experienced this on their television (although I'm not entirely sure what t.v. they own) is the black bars at the side of the screen.
On the left hand side of their t.v. screen, there's now a distinctly burnt in and visible line that runs down the full length of the screen from where the 4:3 picture cuts off and goes to the black bar.
The things that has pissed them (and me) off, is that we weren't aware this would be a problem. It doesn't come from watching dvd's or blu-ray's, it comes from watching regular television in a 4:3 mode, and from commercials airing on t.v. even when the picture itself (such as on high def channels) isn't 4:3.
No one said to them when they bought it, "Hey, make sure to adjust your picture so it's never in a 4:3 format, otherwise you'll get screen burn". And even when you do adjust the picture, it isn't perfect and distorts the picture on the screen, so it's not a good watching experience when the picture is adjusted. In my opinion, there should be a way found to work around this. Who wants to pay between three and five grand for a great t.v., only to have it ruined a couple years later simply from watching t.v.? It's ridiculous. | | | | The night is calling. And it whispers to me soflty come and play. |
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| Registered: March 15, 2007 | | Reputation: |  Posts: 5,459 |
| | Posted: | | | | If it's not too bad and you have the ability, bring up a pure white screen for a while, that should help with burn-in. |
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| Registered: May 26, 2007 | Reputation:  |  Posts: 2,879 |
| | Posted: | | | | So this is an indication that those of us who have not upgraded from CRT yet should consider LCD over plasma? I especially ask because I A) love old movies and B) am technologically impaired.  | | | If more of us valued food and cheer and song above hoarded gold, it would be a merrier world.
-- Thorin Oakenshield |
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| Registered: March 15, 2007 | | Reputation: | | Posts: 5,459 |
| | Posted: | | | | Not really, the LCD manufacturers just call it "image retension" instead of burn-in! |
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| Registered: May 26, 2007 | | Reputation: | | Posts: 599 |
| | Posted: | | | | That's why I went with a DLP. |
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| Registered: December 10, 2007 | | Reputation: | | Posts: 3,004 |
| | Posted: | | | | Quoting northbloke: Quote:
Not really, the LCD manufacturers just call it "image retension" instead of burn-in! Image retensin and burn-in aren't the same thing. Most notably, it isn't permanent. Sometimes, a pixel won't properly change from whatever to black (visible on cut-to-black), but the pixel returns to normal once it's told to change color again. Burn-in is there forever. |
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| Registered: March 14, 2007 | | Posts: 1,328 |
| | Posted: | | | | Quoting Ace_of_Sevens: Quote:
Quoting northbloke:
Quote:
Not really, the LCD manufacturers just call it "image retension" instead of burn-in!
Image retensin and burn-in aren't the same thing. Most notably, it isn't permanent. Sometimes, a pixel won't properly change from whatever to black (visible on cut-to-black), but the pixel returns to normal once it's told to change color again. Burn-in is there forever. Not really again. LCD manufacturers claim that there is no burn in or image retention, but I've seen them both on computer monitors as well as TV displays left on constant CNN or ESPN. | | | | My Home Theater |
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| Registered: March 13, 2007 | | Reputation: | | Posts: 2,293 |
| | Posted: | | | | It is a known problem and has been for ages (though modern plasmas are much better than ones from a few years ago at resisting the burn).
On my Panasonic it's why I set the bars at the sides to grey instead of black (there are 3 or 4 different grey shades in the menu settings for this) and even though I watch quite a lot of 4:3 material it's not been a problem, though it is better to not watch 4:3 material all the time and intersperse watches with an image that fills the screen... not really a problem if you watch much live TV and really the warnings are there because the manufacturers just want to cover themselves for the small percentage of cases where it does happen after leaving a fixed image up for days on end.
Also, don't forget image retention and burn in both happen on Plasmas and (as Ace says, though about LCDs) there is a big difference between the two - image retention on plasmas is termporary and usually cured with just a few hours of watching material that fills the whole screen. Burn is permanent but, as I mentioned, is comparatively rare for modern screens if you have any real consideration of what you watch.
FWIW the best thing to fix image retention is not a pure white screen, it's actually static... unfortunately most TVs recognise static and switch themselves off after a while because they think they're not tuned in to an active channel! If possible record some static onto a DVD (the beginning of the HBO logo screen would probably work) with occasional interspersal of a regular picture so the TV realises it's deliberate, and play that to clear image retention problems quickly.
WRT LCD vs Plasma? It's an age old argument but I'm with Panasonic themseleves who go with LCD for their screens of 37" or less and Plasma for 40"+ for the best results for most people... but it's always best to try them out and go with which you personally prefer, and for me Plasma was superior (42" screen) and Panny did the best pannels. | | | | It is dangerous to be right in matters where established men are wrong | | | | Last edited: by Voltaire53 |
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| Registered: March 19, 2007 | | Reputation: |  Posts: 6,018 |
| | Posted: | | | | While historically burn-in has been a problem with plasma to a larger extent than with LCD, with today's screens the problem is largely gone. Modern plasmas are most sensitive to the issue during their first 100-200 hours of use, which is why it is recommended not to turn up the contrast too much during this period and also to be careful with static pictures. After this "run-in period" is over, you can basically do what you want, although having a static picture displayed for days on end is never a good idea, regardless your type of screen.
Merrik's parents must have had the bad luck that they got an early-generation (or at least earlier-generation) plasma which was more sensitive to the issue than today's screens are. Moreover, whoever sold them the screen should have warned them, as should the screen's user manual (did they actually read the manual?).
I have owned a Panny plasma for a couple of years now, and burn-in has never been a problem (even though I watch everything in its original aspect ratio). I can recall one case of image retention, but it went away as soon as I displayed some screen-filling content for some time.
Finally, as Voltaire mentioned, a feature to look out for is the possibility to have the side bars for 4:3 content displayed in various shades of grey (instead of black). Some players (e.g. the Oppo BDP-83) have this option as well. |
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| Registered: March 17, 2007 | | Posts: 43 |
| | Posted: | | | | Quoting Antares: Quote:
That's why I went with a DLP. Don't think your safe, I have an older model DLP, a Mitsubishi, that has burn in down both sides of the screen from watching too much 4x3 tv. I got this tv years ago, when most tv was still 4x3 and didn't know the danger of trying and make sure to fill the screen. Now, it's just an extra tv that the nieces use to watch tv on when they come over. |
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| Registered: May 9, 2007 | | Posts: 1,536 |
| | Posted: | | | | Quoting Danae Cassandra: Quote:
So this is an indication that those of us who have not upgraded from CRT yet should consider LCD over plasma?
I especially ask because I A) love old movies and B) am technologically impaired. Absolutely. In the (not so) long term, LCD (and its close relation OLED) is going to push plasma completely out of the market. | | | | Hans |
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| Registered: March 13, 2007 | | Reputation: | | Posts: 13,202 |
| | Posted: | | | | Quoting Antares: Quote:
That's why I went with a DLP. Me too.  | | | No dictator, no invader can hold an imprisoned population by force of arms forever.
There is no greater power in the universe than the need for freedom.
Against this power, governments and tyrants and armies cannot stand.
The Centauri learned this lesson once.
We will teach it to them again.
Though it take a thousand years, we will be free.
- Citizen G'Kar |
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