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Do LCD TVs Burn In?

Do LCD TVs suffer from burn in? Learn the truth behind LCD technology and image persistence... the answers may shock you!



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Discussion:    Add a Comment | Comments 26-42 of 42 | Latest Comment | « Previous 1 2

May 13, 2011 3:01 AM

I wrote a quick little Java application that'll "excersize" a screen, and I have had good results from it on LCD screens.

http://www.grandt.com/tempdata/LCDExcercizer.jar

use 1-4 for selecting sequences (3 and 4 seem to give the best results)
Arrow up and down for sequence speed
Esc key to exit.

Sadly it'll only address the primary screen in multiscreen setups. I may update it later to do so.

All it does is paint the entire screen with changing colors. For instance #4 is Red, Black, Green, Black, Blue, Black ... repeat.

It will take some time to see results, and it is NOT recommended looking at the screen, it can be dizzying.

July 3, 2011 12:25 PM

I have a permanent line down the middle of my LCD TV just from using the guide on my cable! It has been there for years now and it is very distracting. I knew about potential "ghosting" and have always been hypervigilant to watch in zoom mode to keep the black bars off the sides of my image and I never pause anything for the same reason. But I cannot avoid using the cable guide!

I am very disappointed with my LCD TV and thought that I would avoid this "burn-in" problem by avoiding a plasma.

Super lame.

I hear it is even worse with the OLED TVs.

July 3, 2011 12:43 PM

Brandy, I can imagine that a burn-in on an OLED would be worse, as it would mean damaged LED's, unlike an LCD where it's "merely" the crystals in the screen that's stuck.

Set it to pure white for a while, or use the "Excercizer" I linked to in my previous post. It saved a laptop screen from a burnt in Windows log in dialog.

July 3, 2011 3:16 PM

Burn-in is about an image getting stuck on the display so that the default off position of a display has this image or a ghost of it on the display. It really isn't about burning out pixels.

LED and OLED displays are not prone to burn-in problems. However, pixels can burn out , but over a very very long period.

i.e. I wouldn't worry about it....

-D

August 3, 2011 1:29 PM

I also have screen burn-in with my Toshiba Regza LCD. I thought I was the only one, until I stumbled upon this website, techlore, today, Aug. 3, 2011. I had tried for a year and a half to find a resolution to this problem, the 2 vertical lines that mimiced the full-screen. Toshiba customer service was no help, neither was my cable company.

But, BEHOLD, I found a resolution by accident. First of all, do you have cable or satellite? I have Comcast cable and about 3 months ago, Comcast did a HD update to all subscribers and it fixed my problem; just like that. I was so amazed, that I wanted to tell everyone. So, when I run across a website like this one, I tell my story. I hope this helps everyone, even Toshiba & Comcast.

August 3, 2011 1:32 PM

webmasterpdx said: Burn-in is about an image getting stuck on the display so that the default off position of a display has this image or a ghost of it on the display. It really isn't about burning out pixels. LED and OLED displays are not prone to burn-in problems. However, pixels can burn out , but over a very very long period. i.e. I wouldn't worry about it.... -D
I also have screen burn-in with my Toshiba Regza LCD. I thought I was the only one, until I stumbled upon this website, techlore, today, Aug. 3, 2011.  I had tried for a year and a half to find a resolution to this problem, the 2 vertical lines that mimiced the full-screen.  Toshiba customer service was no help, neither was my cable company.

But, BEHOLD, I found a resolution by accident.  First of all, do you have cable or satellite?  I have Comcast cable and about 3 months ago, Comcast did a HD update to all subscribers and it fixed my problem; just like that.  I was so amazed, that I wanted to tell everyone.  So, when I run across a website like this one, I tell my story.  I hope this helps everyone, even Toshiba & Comcast.

August 3, 2011 2:28 PM

If going HD eliminated the problem then it's not in the screen obviously...probably in your cable box or in the TV's software/logic that autocalibrates the image to the screen to give you the best image possible. Maybe a broken scaler processor. Hook the TV to a laptop if you have VGA inputs and try different resolution with different test images (you can find standard test images on the web) and see what resolutions are detected and work the best....and what ones cause your problem. The process of fitting a video signal that could be anything to the screen for the best image possible is quite complex usig digital electronics. In the old CRT days, it was all analog and so it was somewhat easier. Now there are issues like aspect ratio, phase, frequency, scaling (horizontal and vertical), and many more factors that go into making the best image. A bug in any one of those can make a particular signal go bonkers on your display. Good Luck.
-D

October 6, 2011 5:47 PM

First they need to figure out exactly what is changing in the LCD during burn in.

With CRTs the phosphor coating actually decays or burns off.

With LCDs all i see are words that describe the process but not what the process actually is. Once that is understood attempts to reverse would be easier.

It is not possible to get back lost phosphus but it is possible to burn the rest evenly so its not as noticeable.

With LCDs the mechanics of the issue have not be tacked about. That is what is needed.

Saying impossible or unlikely is nebulous. When there is 1 million LCDs out in the public you have no idea what is normal to the users.

I got burn in on my RPTV from falling asleep and DVD screen saver failed to kick in. It was at a static main menu for 8 hours. Some would say well that is not likely but I think people falling asleep watching TV or a movie is more common than you think.

October 6, 2011 6:12 PM

My experiences was while working as an engineer for a company that made the chips that drive these displays (Pixelworks). I left there around 2003.
I worked with LCD displays every day.....and naturally, I saw just about every condition known to man :-) There was a bit I remember in the chips that when set would cause the displays to get saturated (related to power or polarity as I feebly recall). Dead pixels were rare, but burn-in can happen. It's less common than on CRTs. It can sometimes be reversed by putting an inverse pattern on the screen :-). However, it's best to just use a screen saver and not leave your TV/display with a static display on it.
Be aware that often vertical and horizontal lines can also be related to how the LCDs are put together (sometimes made from 2 or 4 smaller displays) and nothing to do with burn-in.
Hooking your display to a laptop like the previous poster recommended is probably a good idea. Switching to HD shouldn't make a difference.
Also, the TV's themselves have their own scalers and image optimizers. The cable company doesn't do that work. They just deliver a standard signal. As long as the TV is programmed to handle those video formats, it'll pick the video format closest to the ones in it's internal tables....and do an autoimageoptimization to that signal type. Note that if it has that info wrong, then properties like frequency or phase can often create artifacts like vertical lines on the display. You can sometimes eliminate these by choosing a reset to factory defaults (if that option exists in your TV's menu). This will get rid of any image formats stored in the "recently viewed formats" table and will do full image optimization instead of a shortened version. This should get the frequency and phase correct. Make sure you keep the signal attached throughout this process.
Good luck.

December 1, 2011 11:02 AM

I have a 42 in toshiba regza that i had for about 2 yrs .i am a gamer and love the clarity on my tv but it is suffering.when i pause the game and leave it paused for awhile .when i unpause the game i can see the pause menu on da screen a lil bit kinda annoying.any body have suggestions or can help me with fixing this problem would b very helpful

February 4, 2012 12:48 PM

My Samsung 32' LCD screen suffers with screenburn, it is around 5 years old. If I leave a videogame paused even for a half hour, the image will stay faded on the screen for hours. When I play Skyrim, the compass bar always gets burnt onto the screen for hours afterwards as well. I do watch a lot of stuff in 4:3, for example I have the entire x-files serie son DVD and most of those seasons are in 4:3 ratio, perhaps that has damaged my display?

View unverified member's comment - posted by toshee

February 11, 2012 12:53 AM

toshee, that sounds more like a bad back light, than an actual burn-in. If course that is even worse as there really are no easy cure for that.
On the other hand, an uneven back light would definitely fall under the heading of manufacturing error...

Does the "tadpoles" match any shape or image you have on your screen for long periods of time?

For instance Xbox Live?

February 23, 2012 5:26 PM

Oh yes they sure do!! You have heard of screensavers correct? Why in the world do they call them that? When actually a screensaver can cause burn in especially the very abstract ones with many fluorescent colors of images in them.

March 22, 2012 12:48 PM

Hello, everyone!
Is it possible for the image persistance problem to damage the backlight and cause dead pixels? I just bought a tv off someone and he only mentioned the "screen burn" problem but nothing about the backlight shading or dead pixels. The person is adement that it's all due to the "screen burn" and refuses a refund. Please, can someone clear this up for me?
Many thanks!!

March 22, 2012 6:54 PM

Yes LCD TVs do burn in!! Just like old TVs they always go out sooner or later. Well so do LCD Tvs burn in. You can tell that yours is when you say for instance play a video game on one and after you turn the game controller off you still see an image on the screen that stays there for a while then slowly goes away!!

March 22, 2012 7:05 PM

Will the "burn" cause the backlight difusers wavey-shady pattern on the screen? The screen burn goes away, eventually but the shading remains, in the same undisturbed pattern.

Discussion:    Add a Comment | Back to Top | Comments 26-42 of 42 | Latest Comment | « Previous 1 2

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