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Old May 21, 2006 | 07:43 PM
  #16  
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Originally Posted by skorpio
Everyone thinks that LCDs are immune to burn in, even if youll ask salesman at the store he will tell you that they are immune but they are not. I went to a local store and they had a demo running for about 3 weeks on an lcd and now whenever youll play something else on this screen it shows a shadow of a demo movie. I think the only technology that is immune to burn in is the DLP. LCD wont burn in as fast but it will still burn in.

regards, Bart
Are you sure about the DLP's not burning in?!? I thought I was told they could also burn in?
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Old May 21, 2006 | 07:54 PM
  #17  
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Helpful info on "Image persistence" in the links below. Since LCDs use a backlight and a liquid crystal display, there is technically no "burning" going on in the liquid crystal. It is simply the rotation of layers rod-like molecules that gives color to the white backlight. Hence, the backlight is always using light to shine, but it is always the same color, white. And for this reason, the backlight may dim from overuse, but no light is ever given off by anything going on in the liquid crystal itself. Image persistence is when these molecules, when the same signal has been given for an extended period of time, form intermolecular bonds (impermanent) and stay aligned to form the specific color that was being signaled for this time. Imagine these molecules staying together so long they stick. This can be remedied by turning off the screen for a brief period or by displaying an all white image on the screen. The second is helpful because you can see when the problem has been remedied because the once colored areas, ones subject to image persistence, will become white.

http://en.wikipedia.org/wiki/LCD
http://en.wikipedia.org/wiki/Image_persistence
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Old May 21, 2006 | 07:59 PM
  #18  
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Originally Posted by Payam
Are you sure about the DLP's not burning in?!? I thought I was told they could also burn in?
Again sourcing Wikipedia below, no, they cannot burn in. You may be thinking about the bulb dimming over time. The bulb can be replaced however and is covered under most in-store warranties.

http://en.wikipedia.org/wiki/DLP
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Old May 21, 2006 | 08:15 PM
  #19  
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Originally Posted by RCPiercy
Again sourcing Wikipedia below, no, they cannot burn in. You may be thinking about the bulb dimming over time. The bulb can be replaced however and is covered under most in-store warranties.

http://en.wikipedia.org/wiki/DLP
Sorry to go a little off topic here but I bought a 62" Toshiba DLP in December and the bulb blew out on me last week!!!! Toshiba replaced it but I was surprised that it went bad so soon.
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Old May 21, 2006 | 08:25 PM
  #20  
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Originally Posted by Payam
Sorry to go a little off topic here but I bought a 62" Toshiba DLP in December and the bulb blew out on me last week!!!! Toshiba replaced it but I was surprised that it went bad so soon.

I'm also sorry to off topic, but I have a Dwin ceiling-mount projector that blew a bulb on me as well. I'm told that the next generation DLP's with start using a cluster of LED's for a bulb instead of an actual bulb.
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Old May 21, 2006 | 08:32 PM
  #21  
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Originally Posted by TheRupp
I'm also sorry to off topic, but I have a Dwin ceiling-mount projector that blew a bulb on me as well. I'm told that the next generation DLP's with start using a cluster of LED's for a bulb instead of an actual bulb.
Wow, that would give you a lot more life on the bulb.
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Old May 22, 2006 | 04:34 PM
  #22  
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OK, long story short, so no worries on the burning right!


I'm out.
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Old May 22, 2006 | 04:40 PM
  #23  
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Personally, I find the NAV distracting unless I need it for something. I pretty much always have the display "off", (punch display on the left buttons, then screen off.)

-Brian
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Old May 25, 2006 | 12:35 AM
  #24  
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Originally Posted by Payam
Wow, that would give you a lot more life on the bulb.
22,000 hours is what Samsung is estimating. The coolest thing is that they're getting rid of the color wheel and replacing that with LEDs as well.
= no moving parts, no rainbow effect, light weight, low energy consumption, thin, true black and should be mainly available in 1080p
Probably the best TV ever... http://www.pcmag.com/article2/0,1895,1909039,00.asp
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Old May 25, 2006 | 11:05 AM
  #25  
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Originally Posted by Bichon
Are you sure it wasn't a plasma?

LCD screens can suffer a form of burn-in called "image persistance" but
1. I'd expect it would take more than three weeks to do damage.
2. In many cases, image persistance is cured simply by switching the LCD panel off for a period of time. Since I only drive an hour or so a day, the LCD panel in the car is off more than it is on.
That's what I was gonna say. LCD should not burn but can have dead pixels.

IMHO, OP, you can leave your Navi on all the time. The car should break down before the LCD go bad because the hours spent in your car is minimum compared to the lifespan of an LCD.
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Old May 25, 2006 | 12:18 PM
  #26  
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for a screen to get a burn-in (assuming LCD's get burn-in at all), the screen would have to be static for a long time. How many people actually drive their cars many hours a day non-stop, everyday? Technically LCD's, unlike CRT's and Plasmas, don't get burn-in's.
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