Screen Burn-in


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  1. darksandz93

    darksandz93 Well-Known Member This Topic's Starter

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    Just read a thread over in XDA about screen burn-ins. Download the screen test app from the market by Amberfog. Some people (including myself) are getting a burn-in from the AM/PM at the upper right corner....I didn't really notice it until i hit the blue screen....anyone else getting this??
     

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  2. HadouGhost

    HadouGhost Well-Known Member

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    i seem to have it but i had to look really really REALLY REALLY REEEEEEAAAAAAALLLLLLYYYYYY hard
     
  3. minizoom

    minizoom New Member

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    Mine has it too. I can only barely, barely, barely see it when the screen is gray. It seems to fade too, the longer it stays on the gray screen.
     
  4. SamsungVibrant

    SamsungVibrant Well-Known Member

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    Hehe that was me, AM/PM burning into upper right corner.
     
  5. darksandz93

    darksandz93 Well-Known Member This Topic's Starter

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    Ahh yes SamsungVibrant all credit to you....i thank you but hate you for making me notice this.....im like super OCD and this bugs the hell out of me now arghhhh!
     
  6. Onemoa

    Onemoa Well-Known Member

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    Yeah thats what happened to a lot of people with the nexus one its just no one noticed it untill people started using that app. It will go away, or it at least should as it is not burn it but just the way the pixels are pretty much sticking to that color there are some apps you can download that will keep your screen one color for a while then go to another color and so on and so on.. But I have seen some pretty bad burn ins on the nexus one. if you read into it AMOLED screens burn in more easily then plasma screens do. but its a cell phone and something that you really will not see unless you look for it. I have not seen any on my Vibrant yet and I have had it for almost two months. In most cases it is not a big deal and the screen will correct itself overtime but then again for some people that have had there screen on overnight while charging and such it can be a real problem. I just find it funny that out of no where this is popping up on a bunch of cell phone sites from one person noticing it.. but it is something that should be noted and people should know it can happen, I think its one of the reasons we have a black task bar. so it does not show up as much. anyway I wonder what this will lead too, pretty soon everyone will be testing there phone and looking for anything that might look like burn in. Its just a drawback for having such a nice display..
     
  7. perpetual

    perpetual Well-Known Member

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    This is not image burn-in, which is permanent. This is image retention, which goes away. Most display techs suffer from image retention.
     
  8. howetechnical

    howetechnical Well-Known Member

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    You beat me to it.
     
  9. Big Dog KMc

    Big Dog KMc Well-Known Member

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    I got Nothin'
     
  10. SamsungVibrant

    SamsungVibrant Well-Known Member

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    I don't have time to find reliable sources, so I'm citing Wikipedia which may be incorrect, however according to wikipedia concerning image retention:

    "This charge build-up is transient and self-corrects after the display is powered off for a sufficient period of time, or after running random broadcast TV content "


    So I ask you, is leaving your phone off overnight sufficient time? I've left my phone off all night, and guess what the image is still there.

    Maybe I should leave my phone off for an entire week, maybe leave it off never turning it on an entire month?

    I don't care if you call it burn-in or you call it image retention. Use whatever wording you want. There is an image on the LCD that is not going away, even after leaving it off overnight. The name doesn't matter, call it poop, call it dog food, whatever name you wanna give it, your choice.

    I've never seen this happen on any other phone within 2 months of use.

    Not trying to argue, just trying to make a point that you can't say it is image retention for certain, it could very well be permanent.
     
  11. perpetual

    perpetual Well-Known Member

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    Screen burn in, which is permanent, is caused by the uneven burning of the phosphors in the panel. This is the technology used in plasma displays. Unlike LCDs, OLED has a closer resemblance to plasma in the way they function. In both panel technologies each pixel has its own light source which translates in to deeper blacks and better viewing angles. One big difference though is that OLED panels don't use phosphors. They use Organic Light Emitting Didoes. Hence, they are not prone to screen burn in. This is one of the main advantages that OLED has over plasma displays. Although I must mention that plasma displays have come a long way and screen burn in seems to be a thing of the past.

    Even though screen burn in is permanent, it's effects can be lessen by displaying non-static images in the screen over a period of time.

    our phones don't suffer from any of this because they have OLED panels and not plasma ones. So people might be seeing image retention which has similar effects as screen burn in, but it's not permanent and goes away after displaying a different image on the display. Another possibility, and one that i'm hoping not to be the case, is that the life of the panels might actually be a lot less than what is expected and people are already seeing the effects of the different times of degradation that each of the colors have.
     
  12. indiemixer

    indiemixer Active Member

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    Nothing on mine, although I do switch screen orientation a lot.
     
  13. SamsungVibrant

    SamsungVibrant Well-Known Member

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    Umm your comment in bold seems to be incorrect. I'm not an OLED expert, but doing a quick search for "oled phosphor" in worldcat provides many articles that go against your comment. If you don't have worldcat access try google scholar, some articles on google scholar are free.

    It appears OLED technology does use phosphor.

    I will stop my argument their because I'm not an OLED expert.
     
  14. perpetual

    perpetual Well-Known Member

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    lol I've been reading more about this and all these articles say something different so I don't know who to believe anymore. I'm reading now that even lcds, which I've read countless times are not prone to burn in, actually are.

    what I use my phone for the most is for browsing. I usually use it in full screen mode so this might not be a problem for me. If people use adw, they can also swype up to hide the status bar from time to time.
     
  15. Onemoa

    Onemoa Well-Known Member

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    I was wondering how long you keep your displays on at a time for this to happen. I also would like to point out that I found some more info and videos on this and it can be corrected, I knew it could be but I mean fixed all the way. Main thing is running one color on a AMOLED screen for a long time can fix this. I was also reading on another forum that this is not really burn in it is the pixel itself getting tuned to the color and holding it due to the way AMOLED works. This really should not be a problem for most people I really cant get any solid info on this due to the fact I dont know if what people are saying is true or not. Like when I hear I never use my phone and after one week it is already burned in, and then other people that say they have there phone on for avg time periods such as 30-45mins surfing the web.. The way I am now breaking this down is, You, yes you.. know when you look at a really bright light or headlights and that image stays there for a while. it is something like that with the screen. Burn in is when somthing is burnt into the screen itself and even when it is turned off you still see it, with AMOLED it is just "Image persistence" and is a problem with LCD displays as well, only thing is computer monitors have screen savers and the same img on the screen is really never there for more then a few hours.. if you google Image persistence you can check it out. So in fact we do not have burn in, it is rather just a case of the leds developing a tendency to stay in one position due to the same static image being there over a long period of time. I also would like to add in that if your display has done this already and not when using the prog to test it and you see a little shadow and freak out. I am talking about a serious case, as in you see it while watching videos on your phone or really see it with out looking for it. I was also talking to my friend about this and he has a nexus one and he had the prob very minor for him but it would still show a shadow on a single color backround of his task bar, he noticed that if he left that image there for a while maybe a few mins. the shadow of the task bar would fade and go away. I didnt see it for myself but I believe it. Anyway that is about as much as I know about AMOLED screens as of right now. I will be reading more about it and talking to others as well. When it all comes down to it, its not a big problem and not a whole lot of people have it. with the amount of phones sold with AMOLED screens and the amount of people reporting 5% is, (that is my own number after looking at all the froums and such so dont hold me to it).. and I know a lot of people never even noticed it untill someone told them to go test there screen and they see a little shadow and FREAK OUT!!!, lol anyway I would still pick Super AMOLED over anything else out on the market. after using my phone for just under two months I already look at other displays and I just dont see black anymore there is always that tint of white behind the black as with AMOLED it is just so Vibrant, lol.. anyway, if I find anything else I will update agian.. But so far everything is looking good.
     
  16. perpetual

    perpetual Well-Known Member

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    I used to believe all that you posted here, but upon further reading, I found out that phosphors are indeed used in the light emitting didoes (LED) for each of the colors and that they are actually more prone to screen burn in than even plasma phosphors. Whether this is true out not it's unclear. they actually say that even lcds are prone to this and show pictures of it. So I don't know what to believe anymore. And we are talking about actual screen burn in here, not image retention or image persistence.
     
  17. robo21

    robo21 Well-Known Member

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    I think you might be looking at your screen to hard. Try closing one eye. :eek: :p

    Is this what you are referring to?
    [​IMG]
     
  18. Big Dog KMc

    Big Dog KMc Well-Known Member

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    Thanks Robo....
    I was eating lunch when I saw this post.
     
  19. Onemoa

    Onemoa Well-Known Member

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    I never said they didnt. I am still learning about this myself as I said in my post. I am still learning about it myself and from what I have found, I really dont know what to believe since everyone says something different. I wish I knew everything but I dont.. Just like what you are saying in bold after all my googleing I didnt find anything with that info. So its really hard to believe what your saying.. out of everything I have read, it can be corrected for the most part, but im still learning just as you are. remember dont believe everything you see.
     
  20. perpetual

    perpetual Well-Known Member

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    And I never said that you said they didn't. I just mentioned my findings. Also I never said that I believe any of it. I actually said that I didn't know what to believe anymore.
     
  21. Onemoa

    Onemoa Well-Known Member

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    Ok good im glad we are both clear on that now we can move on, lol :)
     

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