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Plasma vs. CRT Projection - Burn-In

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Old 03-21-2005, 10:48 AM   #1  
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Default Plasma vs. CRT Projection - Burn-In

Sorry if this isn't the right place to post this kind of question.

Anyway, my question is which TV/Projection will suffer or has a highest risk of getting burn-in? Also if there anything to do with burn-in that you can "make it go away?" I always assume plasma has the huge problem with burn-in because of the "nature" of the TV. But then I hear other people talking about CRT Projection (not here) that it's much higher than plasma. I don't know much about both set so I couldn't give my opinion to people who would want either set for their home entertainment. Any enlightenment would be appreciated.

Thanik you for your time.
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Old 03-21-2005, 02:44 PM   #2  
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Burn in is a physical wear on the phosphors of the tubes or panel. It's not the same as the temporary issue of 'image retention'. When phosphors are bombarded with electrons & give off light, they dim with use. The brighter they are driven, the faster they will age. Unused parts of the screen will remain brighter, and a full screen image will show variations in brightness in the pattern of the uneven wear. CRTs of RPTVs and Plasma drive their phosphors really hard, and will age must faster than a direct view CRT. Manuals of CRT based sets warn to not view images that don't fill the screen, or contain static bright images like stock ticker scrollers, more than 15% of the time, to help delay burn in. Keeping your contrast & brightness at moderate levels also helps. It's impossible to 'un-age' the phosphors, but it is theoretically possible to burn the brighter areas to the same dimness as the burned area... IF you had a mask to direct what part got hit. Gray sidebars & orbitting (moving) 4:3 images also help.

The only way to be sure you will not have burn in is to get a TV based on technology that doesn't use phosphors. This is (right now) everything except CRT & Plasma... DLP, LCD, LCOS, DILA, SXRD, etc... With a burn proof display you never need to stretch or distort a non-filling image, but can view it at it's original aspect ratio (with letterboxing or pillarboxing). Most of these are progressive scan displays, native res similar to 1280 x 720p @ 60 frames per second, instead of the 1920 x 1080i @ 30 fps of CRT.
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Old 03-21-2005, 07:37 PM   #3  
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I have had both...CRT and Plasma with no problems after years of use...thats experience I am talking about...not theory or something I read someplace. And in my opinion, you still can't beat a CRT or Plasma as far as picture quality/cost-benefit ratio. The others are interesting technologies but CRT and Plasma have been around for many many years, and its no secret way they are still going strong. The "eyes" have it...!!
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Old 03-21-2005, 07:53 PM   #4  
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Lets say.... down the road you do get burn in or have major dim and bright spots, is is possible to change out the whole screen ? Ive also wondered about that seeing a few plasmas on Ebay with cracked screens.
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Old 03-22-2005, 04:21 AM   #5  
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In the case of a CRT, you can have the color gun(s) replaced. I know a Panasonic repairman who just replaced the 3 color guns on a 47" rear projection CRT for a cost of $200 per gun or $600 give or take. With a Plasma, you throw it out if that should happen to you. Its amazing how we all had our old TVs that ran for 10-15 years without a single hickup...now you pay thousands for a televsion and you "hope" it runs long enough to make the payments before you have to fix it. This is progress? Like one person posted before...if you absolutely cannot risk burn-in (because you won't or can't obey a simple set of rules that prevent such things), then by all means sacrifice some picture quality and fast motion blur and get an LCD television. For my money though, I can buy 2 EDTV plasmas, put one in the closet for safe keeping and still be money ahead than forking out $3,4,5k for an LCD or DLP TV that frankly are unproven long-term technologies. Nobody I know has had an LCD that long (3-4 years) to make the kinds of claims I read about on here, whereas CRT and Plasma have been around a very, very long time. Yes, you must be a repsonsible user of CRT/Plasma, but guess what...its not that hard...why would you NOT want to fill your entire screen with a picture versus having blacl bars on top and sides? Makes no sense does it?..Its just common sense and I for one am not willing to sacrifice picture quality and my wallet for the newest, unproven (let me know after 4-5 years of continued use) technologies.
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Old 03-22-2005, 10:17 AM   #6  
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To me, filling in the black bars and distorting the image of a movie is a ridiculous concept. When Im using this plasma for regular TV, sure, I'll zoom in and fill the screen because I dont have HiDef yet anyway. But if I have to zoom in and distort DVD movies, I never would have bought this thing in the first place. So, I'll be one of those guineee pigs and let everyone know 5 years from now how the set is holding up with such abuse

The way technology changes, Im almost sure I'll be in the market for a new TV anyway 5 years from now. This black bar for plasma problem simply SUCKS.

Maybe down the road I'll use it JUST for widescreen movie watching and the discoloration of the tops and bottoms wont be realized anyway
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Old 03-23-2005, 06:38 AM   #7  
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Plasma hasn't been around all that long...

DLP has been produced since 1987.
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Old 03-28-2005, 09:58 PM   #8  
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Plasma 1993 fujitsu working color model

DLP 1987 chip invented

spliting hairs and irrelevant.
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Old 03-29-2005, 09:54 AM   #9  
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Myers830 thought DLP was an unproven tech compared to plasma, since plasma was older...

The lack of burn in with DLP was one reason I chose that tech, since I much prefer OAR to distorted aspects, and didn't want to fear burn in. DLPs now start at $2K.
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Old 03-29-2005, 10:15 AM   #10  
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All the techs have problems none is perfect.

Its which problems you can live with.

for example my wife lives with me where others wouldn't.

its a personal choice.
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Old 03-29-2005, 10:30 AM   #11  
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What is never talked about is the relativeness of the burn-in tendencies of these displays. How much easier is a burn-in on a plasma versus a CRT projection? We've had the CRT projection for a many of years now and just now starting to see a slight image burned into a corner.. if the Plasma is similar to the CRT projection in this regard, then I'm not going to worry too much about it. Anyone know the answer to this?
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