Rear Projection TVs - Tilted Forum Project Discussion Community

Profhet · 10-28-2004, 08:33 AM

I am looking at either getting a 34" tube widescreen with HDTV and all that or for same price and in some cases less, a 42" or around that size rear projection.

What I am wondering about the rear projection is, BURN IN, how do I avoid it, and what creates it.

I read about the picture getting every so slightly moved automatically by some TVs to avoid this, and then a cowworker said I have to be careful of aspect ratio, in that I need to be able to change it to avoid burn in.

I guess to, am I getting ripped off if I buy a 34" TV, cuz I really like the picture and the fact you can watch it from all angles and also not worry about burn in.

Thanks for the help

the_marq · 10-28-2004, 08:39 AM

I prefer the CRT's as well. The standard rear-proj TV's just don't have the viewing angle that I would prefer (IE: when you stand up the pic goes dark...weak)

However, if you have the $$ you should look into the LCD Proj TV's. A friend of mine just got one and they are far superior to the old style projectors. Don't go plasma, no TV is worth $10000 unless it has a dick sized hole in it.

I don't think that burn-in is that big of a deal anymore. I would be careful if I was playing a lot of X-box or the like tho. Static images are the real killer.

theburner · 10-28-2004, 10:03 AM

I have a rear projection TV, and play a SHIATLOAD of Xbox. No burn. None. Nada. Nil.

JJRousseau · 10-28-2004, 05:45 PM

I have a Sony Wega LCDRP. Burn in is not an issue. It's a fantastic TV. Another thing to consider depending on where you want to put your TV is that a 60 inch LCDRP weighs less than a 30 inch flat screen CRT. I just about gave myself a hernia setting my CRT on to a high shelf.

Profhet · 10-28-2004, 08:55 PM

How come it is not an issue though, thats where I guess my question is directed, how does that TV avoid burn in?

brandon11983 · 10-28-2004, 09:22 PM

Burn in is an issue with a CRT TV. If you get a rear projection CRT TV you will have have to worry about burn in on that too. They are the same technology.

Profhet · 10-28-2004, 10:32 PM

So if I buy a new rear projection hdtv, is it gonna require me to be anal about burn in. LOL. I just, dont have time to suprevise wife while she watches Ellen and Third Watch so that she doesnt ruin the TV

Nelson · 10-29-2004, 05:49 AM

Unless you leave your video game and/or DVD menu screen up for long periods at a time (ie. hours) you dont have anything to worry about. Burn in occurs from having the same image(s) left on the screen for LONG periods of time.

I suppose if your a news junky and left the stock ticker up 24hrs a day it may be an issue also.

Seriously - its not that big of an issue.

Profhet · 10-29-2004, 06:02 AM

Is there some way to automatically prevent this

gcbrowni · 10-29-2004, 07:29 AM

Don't buy a CRT based set. Seriously. And don't believe people who tell you it won't burn in. It will. CRT and plasmas burn in. You can slow the process, but you have to be very attentive to it. I don't care for that, so I bought a set that uses a technology that can't burn in.

JJRousseau · 10-29-2004, 12:34 PM

Profhet, if you google "LCD TV burn in", you'll probably get better answers than I can give. I think a constant light on the phosphorous screen of a CRT can damage the phosphorus. I believe that plasma TVs have the same problem. LCD pixels are on or off and do not suffer from the "burn in" Phenomena.

mercury-hg · 10-29-2004, 12:56 PM

Quote:

Originally Posted by gcbrowni

Don't buy a CRT based set. Seriously. And don't believe people who tell you it won't burn in. It will. CRT and plasmas burn in. You can slow the process, but you have to be very attentive to it. I don't care for that, so I bought a set that uses a technology that can't burn in.

are you repeating what you've heard, or do you have experience? i ask because i've had extensive experience with RP CRTs and haven't had burn-in. nor have i been extraordinarily careful - i've had static images on the screen for over an hour many times, but i've never been negligent. first hand evidence aside (who uses that stuff anyway?), companies claim each year to have reduced the problem in new models.

Nelson · 10-29-2004, 01:05 PM

Quote:

Originally Posted by gcbrowni

Don't buy a CRT based set. Seriously. And don't believe people who tell you it won't burn in. It will. CRT and plasmas burn in. You can slow the process, but you have to be very attentive to it. I don't care for that, so I bought a set that uses a technology that can't burn in.

Thats an absolutely ignorant statement.

And plasmas do not suffer from burn in. Quit shopping/learning at Best Buy.

Thanks, ,please drive through.

Cynthetiq · 10-29-2004, 01:16 PM

Quote:

Originally Posted by Nelson

Thats an absolutely ignorant statement.

And plasmas do not suffer from burn in. Quit shopping/learning at Best Buy.

Thanks, ,please drive through.

sorry. plasmas do burn in also.

I had 4 large SONY Plasmas that did... remember it's LONG durations, longer than 1-3 hours. We'd have semi-static images on our screens for 15 hours a day 5 days a week. I wept when I noticed the burn in... such a waste because I told them it would happen and they insisted that it wouldn't.

We had the same issue with LCDs.

Nelson · 10-29-2004, 01:41 PM

http://www.plasmatvbuyingguide.com/p...nceptions.html

You are correct - I shouldnt have made such a broad statement - in any case - I'd say your situation was quite different than the 'average' end user.

Cynthetiq · 10-29-2004, 01:47 PM

thanks for the link.

There's a comment in that link about them lasting long time and not needing to be "recharged".

I can tell you that they do have a shelf life.... have several walls of Plasma screens and they all failed within 7 days of each other from the first day of installation. All 13 of them were all recently replaced. Again, we use things over the top, these things were on 24/7 for close to 3 years.

Profhet · 10-29-2004, 05:24 PM

Quote:

Originally Posted by gcbrowni

Don't buy a CRT based set. Seriously. And don't believe people who tell you it won't burn in. It will. CRT and plasmas burn in. You can slow the process, but you have to be very attentive to it. I don't care for that, so I bought a set that uses a technology that can't burn in.

what technology is it?and what tv is equipped with it?

gcbrowni · 10-30-2004, 04:39 AM

I shopped and learned for 4 years at the avsforum.com. And I shop at Sears, the single best place on the planet Earth for aggressive price matching.

DLP and LCD front projection can not burn in. DLP and LCD rear projection can not burn in. (LCD blue bit-decay is a myth; It does not exist. LCD can develop asomething of a 'ghost' image that resembles burn-in. The ghost can be completely removed by removing power from the set for 15 minutes, thus it's not burn in and not a serious problem. Plasma rot is a myth also.)

Let me ask you something, when your plasma or CRT set burns in ... are these people going to come over and buy you a new set? I think not.

Burn can be minimized by turning your contrast and brightness WAYYYY down. You should also have your set professionally aligned (which you will have to have re-done every 6 months because of drift) and by never leaving a static image on the screen. Static images include menus, Tv station 'bugs' and line tickers, as well as the black or grey side bars on 4:3 and the top and bottom bars on non-16x9 programming.

So, you can crank the contrast/brightness down, always watch a distorted stretch-mode, never leave a static image on the screen, and then suffer when your wife/gf/kids/roommate watches CNN for 8 hours while you are not home.

Or, you can buy and LCD, LCD-RP or DLP-RP and forget about it. My LCD-RP is on for about 20 hours each day, from 6am-2am, most of the time in 4:3 mode or with static images up. It is impossible to use a plasma or CRT in that way without burn in.

gcbrowni · 10-30-2004, 05:02 AM

Avsforum LCD & Plasma Burn in Thread. Currently 14 pages long. Summary: Yes, plasma burns.)

http://www.avsforum.com/avs-vb/showt...0&pagenumber=1

Color Bars burn in CRT set after 15 minutes (and this by someone who knows better):
http://deeann.blog-city.com/read/849301.htm

Avsforum Master Burn-in Thread (Currently 6 pages long)
http://www.avsforum.com/avs-vb/showt...0&pagenumber=1

The best Tv for most people is going to be a LCD, LCD-RP, or DLP-RP (with LCOS appearing soon.) These technologies are the closest to a 'normal' Tv, in size, weight, and your ability to take them out of the box and then use them any way you wish. CRT-RP and Plasma are nice sets, but not appropriate for most consumers.

10-28-2004, 08:33 AM	#1 (permalink)
Profhet Upright Location: Stratford, Ontario, Canada	Rear Projection TVs I am looking at either getting a 34" tube widescreen with HDTV and all that or for same price and in some cases less, a 42" or around that size rear projection. What I am wondering about the rear projection is, BURN IN, how do I avoid it, and what creates it. I read about the picture getting every so slightly moved automatically by some TVs to avoid this, and then a cowworker said I have to be careful of aspect ratio, in that I need to be able to change it to avoid burn in. I guess to, am I getting ripped off if I buy a 34" TV, cuz I really like the picture and the fact you can watch it from all angles and also not worry about burn in. Thanks for the help

10-28-2004, 08:39 AM	#2 (permalink)
the_marq All hail the Mountain King Location: Black Mesa	I prefer the CRT's as well. The standard rear-proj TV's just don't have the viewing angle that I would prefer (IE: when you stand up the pic goes dark...weak) However, if you have the $$ you should look into the LCD Proj TV's. A friend of mine just got one and they are far superior to the old style projectors. Don't go plasma, no TV is worth $10000 unless it has a dick sized hole in it. I don't think that burn-in is that big of a deal anymore. I would be careful if I was playing a lot of X-box or the like tho. Static images are the real killer. __________________ The Truth: Johnny Cash could have kicked Bruce Lee's ass if he wanted to. #3 in a series

10-28-2004, 10:03 AM	#3 (permalink)
theburner Canadian Beer Ambassador Location: Cumming, GA	I have a rear projection TV, and play a SHIATLOAD of Xbox. No burn. None. Nada. Nil. __________________ Take Off Eh!

10-28-2004, 08:55 PM	#5 (permalink)
Profhet Upright Location: Stratford, Ontario, Canada	How come it is not an issue though, thats where I guess my question is directed, how does that TV avoid burn in? __________________ YOUR AD HERE

10-28-2004, 09:22 PM	#6 (permalink)
brandon11983 Stereophonic Location: Chitown!!	Burn in is an issue with a CRT TV. If you get a rear projection CRT TV you will have have to worry about burn in on that too. They are the same technology. __________________ Well behaved women rarely make history.

10-28-2004, 05:45 PM	#4 (permalink)
JJRousseau Psycho Location: Vancouver, Canada	I have a Sony Wega LCDRP. Burn in is not an issue. It's a fantastic TV. Another thing to consider depending on where you want to put your TV is that a 60 inch LCDRP weighs less than a 30 inch flat screen CRT. I just about gave myself a hernia setting my CRT on to a high shelf.

10-28-2004, 10:32 PM	#7 (permalink)
Profhet Upright Location: Stratford, Ontario, Canada	So if I buy a new rear projection hdtv, is it gonna require me to be anal about burn in. LOL. I just, dont have time to suprevise wife while she watches Ellen and Third Watch so that she doesnt ruin the TV __________________ YOUR AD HERE

10-29-2004, 05:49 AM	#8 (permalink)
Nelson Tilted	Unless you leave your video game and/or DVD menu screen up for long periods at a time (ie. hours) you dont have anything to worry about. Burn in occurs from having the same image(s) left on the screen for LONG periods of time. I suppose if your a news junky and left the stock ticker up 24hrs a day it may be an issue also. Seriously - its not that big of an issue. __________________ Nelson

10-29-2004, 06:02 AM	#9 (permalink)
Profhet Upright Location: Stratford, Ontario, Canada	Is there some way to automatically prevent this __________________ YOUR AD HERE

10-29-2004, 07:29 AM	#10 (permalink)
gcbrowni Tilted Location: Indianapolis	Don't buy a CRT based set. Seriously. And don't believe people who tell you it won't burn in. It will. CRT and plasmas burn in. You can slow the process, but you have to be very attentive to it. I don't care for that, so I bought a set that uses a technology that can't burn in. __________________ From the day of his birth Gilgamesh was called by name.

10-29-2004, 12:34 PM	#11 (permalink)
JJRousseau Psycho Location: Vancouver, Canada	Profhet, if you google "LCD TV burn in", you'll probably get better answers than I can give. I think a constant light on the phosphorous screen of a CRT can damage the phosphorus. I believe that plasma TVs have the same problem. LCD pixels are on or off and do not suffer from the "burn in" Phenomena.

10-29-2004, 01:41 PM	#15 (permalink)
Nelson Tilted	http://www.plasmatvbuyingguide.com/p...nceptions.html You are correct - I shouldnt have made such a broad statement - in any case - I'd say your situation was quite different than the 'average' end user. __________________ Nelson

10-29-2004, 01:47 PM	#16 (permalink)
Cynthetiq Tilted Cat Head Administrator Location: Manhattan, NY	thanks for the link. There's a comment in that link about them lasting long time and not needing to be "recharged". I can tell you that they do have a shelf life.... have several walls of Plasma screens and they all failed within 7 days of each other from the first day of installation. All 13 of them were all recently replaced. Again, we use things over the top, these things were on 24/7 for close to 3 years. __________________ I don't care if you are black, white, purple, green, Chinese, Japanese, Korean, hippie, cop, bum, admin, user, English, Irish, French, Catholic, Protestant, Jewish, Buddhist, Muslim, indian, cowboy, tall, short, fat, skinny, emo, punk, mod, rocker, straight, gay, lesbian, jock, nerd, geek, Democrat, Republican, Libertarian, Independent, driver, pedestrian, or bicyclist, either you're an asshole or you're not. What's the best nation in the world? DO-NATION!

10-30-2004, 04:39 AM	#18 (permalink)
gcbrowni Tilted Location: Indianapolis	I shopped and learned for 4 years at the avsforum.com. And I shop at Sears, the single best place on the planet Earth for aggressive price matching. DLP and LCD front projection can not burn in. DLP and LCD rear projection can not burn in. (LCD blue bit-decay is a myth; It does not exist. LCD can develop asomething of a 'ghost' image that resembles burn-in. The ghost can be completely removed by removing power from the set for 15 minutes, thus it's not burn in and not a serious problem. Plasma rot is a myth also.) Let me ask you something, when your plasma or CRT set burns in ... are these people going to come over and buy you a new set? I think not. Burn can be minimized by turning your contrast and brightness WAYYYY down. You should also have your set professionally aligned (which you will have to have re-done every 6 months because of drift) and by never leaving a static image on the screen. Static images include menus, Tv station 'bugs' and line tickers, as well as the black or grey side bars on 4:3 and the top and bottom bars on non-16x9 programming. So, you can crank the contrast/brightness down, always watch a distorted stretch-mode, never leave a static image on the screen, and then suffer when your wife/gf/kids/roommate watches CNN for 8 hours while you are not home. Or, you can buy and LCD, LCD-RP or DLP-RP and forget about it. My LCD-RP is on for about 20 hours each day, from 6am-2am, most of the time in 4:3 mode or with static images up. It is impossible to use a plasma or CRT in that way without burn in. __________________ From the day of his birth Gilgamesh was called by name.

10-30-2004, 05:02 AM	#19 (permalink)
gcbrowni Tilted Location: Indianapolis	Avsforum LCD & Plasma Burn in Thread. Currently 14 pages long. Summary: Yes, plasma burns.) http://www.avsforum.com/avs-vb/showt...0&pagenumber=1 Color Bars burn in CRT set after 15 minutes (and this by someone who knows better): http://deeann.blog-city.com/read/849301.htm Avsforum Master Burn-in Thread (Currently 6 pages long) http://www.avsforum.com/avs-vb/showt...0&pagenumber=1 The best Tv for most people is going to be a LCD, LCD-RP, or DLP-RP (with LCOS appearing soon.) These technologies are the closest to a 'normal' Tv, in size, weight, and your ability to take them out of the box and then use them any way you wish. CRT-RP and Plasma are nice sets, but not appropriate for most consumers. __________________ From the day of his birth Gilgamesh was called by name.