Database Users

[IDEA] Completely Turn off Pixels in AMOLED to save Battery

Dear Developers,
I have been messing with my phone lately and got to know something.
1. Pull out the Battery and reinsert it.
2. Go to a Pitch black room and boot the phone.
3. At the Galaxy S Screen, you can notice that the Black portion of the screen is totally black, meaning that the pixels are totally OFF.
4. Once the Phone boots up, Power Off the phone, just before the phone turns off, you will be able to see a bare illumination as if there is some backlight, which means that the Black pixels are not totally off. You can even notice the same with a black image on your screen.
I am not a Technical Person, but I guess the screen driver is powering down the pixels instead of totally turning them off, like it happens during the boot. Maybe we can tweak the driver to totally power down pixels for black content. This would help the screen show deeper black levels and also will help save the battery, keeping in mind that the screen is the biggest battery hog.
Maybe any Developer can share a word on this.
Thanks!

they always give some light . But when there is something at the screen (like the logo), you can't see it because of the high contrast.

I have made several checks and I am pretty sure that the logo screen has totally black background, but after booting, the screen gives out some light.
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Human eye can't see deeper levels of black what it is now and samsung would have tweaked it if it wouldn't harm phone, or if it would be even possible.
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I am giving main emphasis on the battery life rather than colors. The boot screen shows perfect black so the screen can definitely support it..
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dhiru1602 said:
I am giving main emphasis on the battery life rather than colors. The boot screen shows perfect black so the screen can definitely support it..
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Click to collapse
SAMOLED screens can display true black. If you want to get technical the contrast ratio of a SAMOLED screen is infinite. The battery life gains wouldn't be noticeable though.

My guess is that the 'almost-black' brightness is to maintain response time.
A non-linear device (like a diode or a transistor) that is completely off will have a transient to turn on because it's junction/channel capacitance(s) need to be charged up before it will start to conduct. In things like current DACs there will sometimes be a trickle current through 'off' devices whose purpose is to keep devices 'on' so that they will be faster to start conducting again when required.
Just guessing that this may be the reason for the non-zero minimum brightness (although it is pretty damn dark).

Op, i've just tried pulling pattery out - the screen still shines.
However, i would really like to see the completely off black pixels - for reading in dark, for example. We need to ask someone like Supercurio to sort everything out.

the NoLED app was made specially for this phone to conserve battery
when a OLED display is not on, it is not using power, it has no light
google OLED technology to learn more

AllGamer said:
the NoLED app was made specially for this phone to conserve battery
when a OLED display is not on, it is not using power, it has no light
google OLED technology to learn more
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Click to collapse
You are wrong. This app was not made to conserve battery, and it does not turn off light completely. Read the op-post here http://forum.xda-developers.com/showthread.php?t=730692 Author had marked out statement about energy consumption, because black on Super Amoled doesn't behave as it should on OLED.

you mean this? http://www.devasque.com/noled/FAQ.php
Q: What about battery drainage ? How much battery percentage does this app consume per hour ?
A: To answer this question, I quote our friend evilhunter101 from xda-forums.com
"That's a question that simply can't be answered for you and everyone else who wonders. Why? Because all the available settings change the battery consumption, as well as what other apps you have installed and what kernel or OS you are using. Simply put, try the app. If you like it, keep it. If not, uninstall it. You have literally got nothing to lose.
P.s. I see no difference with or without NoLED, while others swear its a battery hog. I imagine we have it set up very differently."
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dhiru1602 said:
I have made several checks and I am pretty sure that the logo screen has totally black background, but after booting, the screen gives out some light.
Sent from my GT-I9000 using XDA App
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Click to collapse
keep your finger over the logo and any other light sources and you will see the black still gives some light.

Sounds interesting
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I believe this is current leakage or deliberate to boost response time. I think its just how it works period kind of like wishing the backlight didn't bleed through blacks on lcd screens... can't be changed with a driver mod sorry
Stock XXJVK, Voodoo GB hack Kernel, JQ1 modem

Screen susceptible to Burn In?

I recently came across an article that states that AMOLED screens had problems with their screens burning in, especially the AM/PM on notification bar or the charging status of the phone if plugged in and left overnight. I also saw these problems on the Captivate thread here on XDA
So will it be the same problem with this phone?

I had an HTC Desire before upgrading to my SGSII recently. Had it for over a year and never had any problems with burn in.
I believe the AMOLED screen on the Desire was made by Samsung as well. Not sure how much the technology has changed with the super AMOLED +. I guess time will tell!

Same again.... I have a launch day Nexus One (18Months Old) and there are no signs of burn in/image persistence on the screen. Unless you are planning on leaving your screen constantly showing a static image I wouldn't waste your time worrying about it.
Regards.

There is a screen burn in post .
jje

I bought HTC Desire when it came on market and I havent seen any screen burn in.. Also I don't have any problems with SGS2..
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So it's not a good idea to use the phone as a bedside clock eh?
Hopefully it won't be as bad as this. http://forum.xda-developers.com/showpost.php?p=15057550&postcount=4

chobie said:
So it's not a good idea to use the phone as a bedside clock eh?
Hopefully it won't be as bad as this. http://forum.xda-developers.com/showpost.php?p=15057550&postcount=4
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Click to collapse
Ah ok that's the one from my thread. You must understand it's temorary... So it's not a "real" burn in. It disappears after 10 seconds.

r_a_c said:
Ah ok that's the one from my thread. You must understand it's temorary... So it's not a "real" burn in. It disappears after 10 seconds.
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Click to collapse
Good to know. But that still sucks though.
And on Galaxy S Variants the most usual permanent burn ins are the AM/PM on the not. bar that users post about.

There is a good chance for a burn in on the sgs2... but only if you use high brightness all the time, long screen on periods with no movement of graphics, so that the pixels can change.
tip: set your phone to 25% brightness (this will make the battery life even longer then 10% or 50%)
tip: set the phone turn off screen after 30 sec.
tip: Use a "Screen flashlight" app (fullscreen of red,green,blue etc) from time to time in all colors, to get all pixels changed and see if there is any problem.
triple tip

My nexus one has screen burn of the notification bar. Many of us have this issue. All amoled screens can have this problem, nothing you can do really.

That's my experience with SG2... nothing I can do about it!
I've tried running Screen Burn-In Tools (some app from Google Play) about an hour a day for a few days now and still the damn ugly burn-in is there!
Since I bought the phone from a dude, I can't return it to Samsung and stuff. Guess I should look closer when buying a phone from strangers! And I should've documented myself about the GS2 problems before buying one.
Didn't think an expensive phone could have these ridiculous problems!

Galaxy S2 Weird Screenburn issue

Ive had this powerhouse of a phone for just under 16 Hours, Screen has only been used for around half an hour etc,
Ive just noticed some screenburn on the screen The four buttons - (Phone, Contacts, Messaging, Apps) are visible on the screen when I look at a grey-ish background (Such as the speedx initial bg). Ive been through 6 Galaxy S2s, Three of them had this issue - Is it me, or is this a bit weird? Phone screen on for only 30mins since it was factory shiny&new, and theres already light screenburn.
Is this a characteristic of SAMOLED Plus, or is this a faultly batch? (Im on my 5th replacement phone from Amazon due to various faults). It seems a bit weird, a phone thats cost near £475 inc has this kind of issue.
Thanks In Advance,
Aman.
(Picture attached, You have to look quite carefully to see the greyish outlines of the boxes)

It doesn't look screen burn as it looks coloured. it might be the app you are running has transparency.

afaik, OLED does suffer from screen burn like plasmas do - potentially, but not that quick!

Well, it can happen. After a month i started seeing the same thing when pulling down the notification bar. So it's not app related, cause i don't use other launcher, i can clearly see the shadow of the 4 icons for a few seconds when pulling down the notification bar. They disappear pretty quickly, i'm not that bothered about that.

Also notice even if you just got the phone the very first second the digital clock actually burns through the notification tray and slowly disappears, I think its a technology limitation on the SAMOLED+

hi i dont know if my post will help or not
put i have a samilliar proplem with my sgs2 screen
i have proplems with colors like grey and dark blue
i will attack photos for u to see if u have the same proplem with colors like me
and my phone is only 14 day old
i really dont know if the colors are normal or not
p.s: make ur display 60/100 to see the colors
on my sgs1 the screen was way better
the first two pics are of the grey color ( to see if u have the same like this pic open msg and write a messege there is an option to write sound messege click on it
it will show the same thing see if u have the same like me
and the third pic is of the home screen to compare see if there is something wrong with ur screen
also could some one please look at his device and my pictures so i can now if there is something wrong with my device
thanks alot in advance

EarlZ said:
Also notice even if you just got the phone the very first second the digital clock actually burns through the notification tray and slowly disappears, I think its a technology limitation on the SAMOLED+
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Click to collapse
Seems like a SAMOLED+ limitation as you say. I was just curious, it shouldnt bother me much whilst im using my phone normally.
ashish.vig said:
I just got my screen replaced, because of the screen burn issue, had a violet patch on top left, right where the viber icon sits, wihc caused the pinkish tint screen. Got my screen replaced in under 20 mins at samung service centre in Mumbai.
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If the screenburn gets really bad, I suppose i can always just use the 2yr Warranty I have on the phone to get the screen replaced. Waste of an invisibleshield though.
Considering the phone is less than a day old, the screen might go really weird in 2-3 months - Which is what im worried about.

ayhamx360 said:
on my sgs1 the screen was way better
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Click to collapse
I would have to agree that the S1 screen is was a better display even if did have a more jagged edges on the fonts.

I have a similar issue in the messaging app, but with the keyboard. If I 'enable'(/turn on/whatever) it then disable it, it's 'shadow' stays there for a couple of seconds. It is however not a permanent burn in, so I think it's just the screen's limitation and it doesn't really bother me as this screen is still by far the best I've ever used.

EarlZ said:
Also notice even if you just got the phone the very first second the digital clock actually burns through the notification tray and slowly disappears, I think its a technology limitation on the SAMOLED+
Click to expand...
Click to collapse
wouldn't that screw up video playback though? sounds more like a software bug

I turned the clock on the notification bar back to 24hr , as i read/saw the AM/PM can burn in as they are displayed a lot longer then the 24hr digits which move at least every hour.

I just discovered this issue last night. I had been noticing a few lines here and there on my regular usage and I thought it was just a defective screen. Through the use of Terminal's blue screen, I realized that it wasn't defective.
I have a car dock, and use PowerAMP in the car every day. As you can see above, those burn ins are the buttons in PowerAMP. I went to take a picture of my SGS2 with my N1, and while looking at the blue screen on my SGS2 through the display of the N1, I noticed the N1 had the issue too!
I'm trying to run JScreenFix now to see if it solves the problem, but I highly doubt it.
Will Samsung even honour the warranty for things like this?

I have an SGS1 of 1 year old and my SGS 2 bought in may. Side by side, I will never exchange my SGS2 for another SGS1. Screen quality (colours and details) is by far better on SGS2. No comparision
I also don't see any burn in in both devices (keybord test, status bar...). Maybe some defective devices around that you just should exchange

If you want to test your screen or anything on your phone type *#0*# into the keypad
If the burn don't show up on green blue or red then its something else

I also have the same issue. I can see shadow of the System task bar. It was quite vivid on RED and it shows as lighter blue on blue colour. And on white it became pale white. Bright yellow as well on yellow.
I've tried various things like put the screen on full brightness on Black and Red and blue but still have the shadow there.
I will see if i can get my warranty repair.

I just wanted to confirm that the SGS2 sure can have a Burn In, as it was declared before as "Burn In Proof".
I noticed it while playing the recently released Game "Osmos HD". The game's color temperature is pretty blue-dark, and thats where I can see a slight burn in of the Task Bar.
Afterwards I checked my screen with various LCD Test programs and BAM - with low brightness I see slight burn in of the whole task bar. I can even see the signal indicator, the battery percentage and the spot where the clock sits.
But its only visible at very low brightness and a blue-purple coloring.
I called my brother, who has the Galaxy S2 as well, and he directly went and checked with LCD Tester as well. He, too, reported to me that he also has a slight screen burn in of the task bar, tho its very tough to spot. I guess, if you dont know its there, u wont notice it.
We both have our SGS2 models now for roughly a year, and the screens already seem to decrease in quality and stability.
I am a fan of Super AMOLED+ color quality and contrasts, but my 2 bothers and me have all the yellow tint issue, tho its not very drastic, and all devices start to get kind of a permanent screen burn in.
Its really sad to see that the otherwise fabulous screens already show its age. I hoped that Samsung learned from the SGS1's issues and user feedback, but sadly, it seems like they kind of ignored the fact that the Super AMOLED cant take much action...
My girlfriends Desire HD's screen (which was my phone before I got the SGS2) is still showing good colors. Sometimes I think about getting an LCD device again...

I think what most posters in this thread are reporting is Samoled ghosting, ie image retention for a few secs. Its not permanent, unlike burn-in, which some people may experience after some months of usage.

bambollero said:
I think what most posters in this thread are reporting is Samoled ghosting, ie image retention for a few secs. Its not permanent, unlike burn-in, which some people may experience after some months of usage.
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Click to collapse
No, its not ghosting at all.
The taskbar image thats burned in is from MIUI. And since I am running either and Sammy ICS Build or Androidmeda for a while now, this image must've been there for longer than I thought.
As I said, I just noticed it yesterday while trying out the Osmos HD Demo. And its clearly the MIUI taskbar. Must be there for more than a couple of days already.

No screen burn on my Galaxy S2! Btw, been comparing screen to iphone 4/4s and Galaxy S2 screen way better! You have to have some sort of "telescopic" vision to notice resolution advantige on 4s... Who anyway reads webpages fully zoomed out? LoL... With magnifyng glass?? Contrast and colors advantige is huge on galaxy side....
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mad_max911 said:
No screen burn on my Galaxy S2! Btw, been comparing screen to iphone 4/4s and Galaxy S2 screen way better! You have to have some sort of "telescopic" vision to notice resolution advantige on 4s... Who anyway reads webpages fully zoomed out? LoL... With magnifyng glass?? Contrast and colors advantige is huge on galaxy side....
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Click to collapse
I dunno why u are now comparing with the iPhone 4/4s here, but thanks ;-)
For how long are you using ur Galaxy S2 now? Mine is running non-stop since a roughly a year now.
And yes, it seems like a permanent screen burn in on my end. Just checked again, same visibility of the probably weeks-old MIUI taskbar.

Be careful : Screen Burning on GS II !!!

Hi, I'm French so sorry for my English.
I use every day software called "iCoyote" to signal and be notified of fixed and mobile radars.
I've never let "iCoyote" running over 30 minutes.
Yet, I have a huge "Burn-In".
(on a I9100)
Photos (the last photo shows you how is "iCoyote" to compare with the screen burning).
My S GS II is now to the after-sales service since yesterday.

RaPiiDe said:
Hi, I'm French so sorry for my English.
I use every day software called "iCoyote" to signal and be notified of fixed and mobile radars.
I never let "iCoyote" running over 30 minutes.
Yet, I have a huge "Burn-In".
(on a I9100)
Photos (the last photo shows you how is "iCoyote" to compare with the screen burning).
My S GS II is now to the after-sales service since yesterday.
Click to expand...
Click to collapse
that does look really bad but the thing is if you are using that in the car and its infront of the sun as well it will get extremely hot...hopefully now that you have took it back they will sort it for you...but using the phone intensively it will get hot...just like computers or laptops even playstation..use them long enough they do start getting hot my friend..all the best hope it wont happen again

Dont these mobile screens have any threshold temperature values to turn off when reaching such temperatures???

Matriak31 said:
that does look really bad but the thing is if you are using that in the car and its infront of the sun as well it will get extremely hot...hopefully now that you have took it back they will sort it for you...but using the phone intensively it will get hot...just like computers or laptops even playstation..use them long enough they do start getting hot my friend..all the best hope it wont happen again
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Click to collapse
Thank you for the answer .
I know the sun can be responsable but the problem is not present with a GPS device or many phones.
Samsung sells a car holder but if you use it, you kill your phone...
I've never used it more than 30 minutes in a row... And my screen is burnt...
I made this new topic to warn people. Be careful using this screen.

RaPiiDe said:
Thank you for the answer .
I know the sun can be responsable but the problem is not present with a GPS device or many phones.
Samsung sells a car holder but if you use it, you kill your phone...
I've never used it more than 30 minutes in a row... And my screen is burnt...
I made this new topic to warn people. Be careful using this screen.
Click to expand...
Click to collapse
Nothing to do with heat, research amoled displays. The more you use a particular color the less bright over time the color pigment will be. Blue lasts the shortest, then green then red.
On my old galaxy s, the clock made a set of "burnt in" pixels in its place. On an all blue screen, the clock had obvious burn in, green screen less noticeable, red not noticeable. One idea could be to lower the brightness to reduce the effect, but it WILL happen to some degree. For me it isn't noticeable unless I look for it...
The ring you see is actually not "burn in" in the sense of old CRTs or plasma, in fact its the opposite. With burn in, if blue "burns in" you always see blue. Amoled is the OPPOSITE. The reason the ring above appears to be redish-green is because the blue is "depleted" more so than red or green. As I said before the colors deplete at different rates, thus blue will burn out sooner than green, green sooner than red. So for the ring you see above, on a screen meant to be 100% white, your "ring" will be maybe 80% blue, 95% green, 100% red based on how much brightness each sub-pixel has lost.
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please delete
compuw22c said:
Nothing to do with heat, research amoled displays. The more you use a particular color the less bright over time the color pigment will be. Blue lasts the shortest, then green then red.
On my old galaxy s, the clock made a set of "burnt in" pixels in its place. On an all blue screen, the clock had obvious burn in, green screen less noticeable, red not noticeable. One idea could be to lower the brightness to reduce the effect, but it WILL happen to some degree. For me it isn't noticeable unless I look for it...
The ring you see is actually not "burn in" in the sense of old CRTs or plasma, in fact its the opposite. With burn in, if blue "burns in" you always see blue. Amoled is the OPPOSITE. The reason the ring above appears to be redish-green is because the blue is "depleted" more so than red or green. As I said before the colors deplete at different rates, thus blue will burn out sooner than green, green sooner than red. So for the ring you see above, on a screen meant to be 100% white, your "ring" will be maybe 80% blue, 95% green, 100% red based on how much brightness each sub-pixel has lost.
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Click to collapse

Maybe its because of sunlight...
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ryn888 said:
Maybe its because of sunlight...
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Click to collapse
Answer :
I know the sun can be responsable but the problem is not present with a GPS device or many phones.
Samsung sells a car holder but if you use it, you kill your phone...
I've never used it more than 30 minutes in a row... And my screen is burnt...
compuw22c said:
Nothing to do with heat, research amoled displays. The more you use a particular color the less bright over time the color pigment will be. Blue lasts the shortest, then green then red.
On my old galaxy s, the clock made a set of "burnt in" pixels in its place. On an all blue screen, the clock had obvious burn in, green screen less noticeable, red not noticeable. One idea could be to lower the brightness to reduce the effect, but it WILL happen to some degree. For me it isn't noticeable unless I look for it...
The ring you see is actually not "burn in" in the sense of old CRTs or plasma, in fact its the opposite. With burn in, if blue "burns in" you always see blue. Amoled is the OPPOSITE. The reason the ring above appears to be redish-green is because the blue is "depleted" more so than red or green. As I said before the colors deplete at different rates, thus blue will burn out sooner than green, green sooner than red. So for the ring you see above, on a screen meant to be 100% white, your "ring" will be maybe 80% blue, 95% green, 100% red based on how much brightness each sub-pixel has lost.
Sent from my GT-I9100 using XDA App
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Click to collapse
Thank you for this answer. Now, I understand that the screen is "used" and not burnt.
Always using auto brightness.

I can see a difference in the notification bar area when I put the phone in landscape, eg in the browser.
I've got the phone about 3 months and a half ago.. I've pretty used the phone. Using auto brightness.

I noticed over the last few days some burning in. I went to start a thread to see if anyone else had this and there is a thread also underway in the Q&A section http://forum.xda-developers.com/showthread.php?t=1284984

That means any app that stays open (i.e. Car Home) can damage your screen. I had no idea, thanks. At least Car Home has the screen 90% black...

Thank's for the heads up and I will try not to use blue no more. (I did not think it would make a screen "burn out" so fast.) My 5 year old 32in Lcd hdtv I had dimed out to the point were it started becoming hard to see movies with dark themes. (I now have a 46in LED tv)

yep. I have Samsung Omnia II - first Samsung phone with AMOLED display. And noticed that time that blue pixels wear very fast.
It's pretty similar to plasma displays.

sorg said:
yep. I have Samsung Omnia II - first Samsung phone with AMOLED display. And noticed that time that blue pixels wear very fast.
It's pretty similar to plasma displays.
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Click to collapse
Yeah, a little research on AMOLED screens will reveal their struggles with finding blues that last anywhere near as long as green, much less red. Since it's an organic compound in the end, it's going to have a somewhat limited lifespan. How long it'll really last is going to vary by use, brightness, and luck of the draw.

Awww nuts!
That's a bit off-putting really but I'm glad I found out about the screen issue. I'm having a real to-and-fro battle trying to decide which phone to buy, Sensation or GSII. Each have their pros and cons.

when i had my mobile for like 3 days i was playing fruit ninja at highest brightness and all the slashing on the screen after 3-4 min i had a warning that screen temperature is high and it reduced brightness automatiacally but nothing happened to screen

Thanks for sharing this info, RaPiiDe. And thanks to ompuw22c for explaining this amoled specific issue.
Did anyone managed to get screen replaced, does warranty cover it?

My GS is almost 2 years old, but the screen is perfect. I guess that's because I set the screen the lowest bright unless I use it outside. Even though it's lowest bright, the screen is bright enough to do almost everything. I love superamoled.
Sent from my SCH-I500 using XDA App

yqed said:
That means any app that stays open (i.e. Car Home) can damage your screen. I had no idea, thanks. At least Car Home has the screen 90% black...
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Click to collapse
A respectable night docking app must do two very important things right:
a) must lower brightness to minimum
b) must move the image left/right/top/bottom by a few pixels every so often , to minimize strain on pixels.
Slysdexia said:
Yeah, a little research on AMOLED screens will reveal their struggles with finding blues that last anywhere near as long as green, much less red. Since it's an organic compound in the end, it's going to have a somewhat limited lifespan. ...
Click to expand...
Click to collapse
Just so no one gets confused here: "Organic" in OLED does not mean "material came from once-living organism, or is a product of decay". It instead means "made from an organic compound" - where "organic compound" is a material that contains carbon. Another example of an organic compound is diamond. Carbon is basically everywhere

I have terrible usage from PowerAMP in car mode. Just got my USB jig though. Will most likely send it in for replacement.
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Will Night Clock cause burn in?

Doesn't seem like the clock or battery icon move around like Always On mode. Will this eventually cause burn in?
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No. Amoled displays don't suffer from that. Even high quality LCD displays like found on the iPhone will have a hard time causing burn in.
Sent from my SM-G935F using Tapatalk

The information provided above is false. Amoled screens can suffer from burn in. However, with the Always On Display, the clock moves around every 3 minutes or so to avoid burn in.

CuBz90 said:
The information provided above is false. Amoled screens can suffer from burn in. However, with the Always On Display, the clock moves around every 3 minutes or so to avoid burn in.
Click to expand...
Click to collapse
He's asking about the night mode, which puts the clock on the edge of the screen. It doesn't move around in that mode.
I don't know the answer, but I don't use it for that fear.

berfles said:
He's asking about the night mode, which puts the clock on the edge of the screen. It doesn't move around in that mode.
I don't know the answer, but I don't use it for that fear.
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Click to collapse
Ah!
I imagine the night clock woukd cause burn in ad it does stay in one place.
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Well the numbers do change every hour and minute so I think it would be hard to get any noticeable burn in.
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Richieboy67 said:
Well the numbers do change every hour and minute so I think it would be hard to get any noticeable burn in.
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Click to collapse
Unfortunately the battery icon and next alarm displayed doesn't change.
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I was wondering this and also worried about burn in , so I turned off night clock because it doesn't move, and I'm asleep so I don't need it on.
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I doubt it, the brightness would be low enough to minimize the risk of burn-in.

I don't think it would. I have mine set to only stay on from 1AM until 5AM (the hours I'm most likely to wake up in the middle of the night and want to see the time.)
I don't think 4 hours is enough to cause burn in being how the pixels are lit up very dim when using the night clock.

ydoucare said:
I doubt it, the brightness would be low enough to minimize the risk of burn-in.
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Click to collapse
The pixels are stilll active though, shortening their "life". Will you notice any burn in or difference in screen quality in that area within a month or six? Probably not, but it'll burn in (or, leave a mark if you want) no matter what after 24+ months. AMOLED is a tricky technology, so I personally stay away from "AMOLED black" themes and whatnot. Why? The black areas are turned off, while the colored/lightened pixels are lit up. The areas that are "off" will have a longer "pixel life" than the ones most used, so it'll make a sort of "ghosting" effect after a while (2 years+). Using a theme or whatever that's "even", i.e not on and off at different places will give me an even "burn out".
I have no idea how good the EDGE's panel is though, so this is pretty much pure speculation, with some facts mixed in!

At first I was also worried that the pixels don't change position, but having it on for a week, I think it's too dark to cause a burn-in.
The Always-On clock looks like it'll burn in more because it's bright even though it moves around every couple minutes.
I use a black background. I don't think it'll cause uneven wear. Every time I use a web browser, the background is mostly white. I think that's enough to evenly burn in the screen. I usually keep the screen little dimmer than normal to avoid burn in., but I'm not afraid of ramping up the brightness when I'm outside under the sun or reviewing photos.
One thing I don't like about the night clock is that it shows the alarm that's couple days out. I think Samsung really need to fix this as this is obviously a bug, or they didn't test it enough.

hp79 said:
At first I was also worried that the pixels don't change position, but having it on for a week, I think it's too dark to cause a burn-in.
The Always-On clock looks like it'll burn in more because it's bright even though it moves around every couple minutes.
I use a black background. I don't think it'll cause uneven wear. Every time I use a web browser, the background is mostly white. I think that's enough to evenly burn in the screen. I usually keep the screen little dimmer than normal to avoid burn in., but I'm not afraid of ramping up the brightness when I'm outside under the sun or reviewing photos.
One thing I don't like about the night clock is that it shows the alarm that's couple days out. I think Samsung really need to fix this as this is obviously a bug, or they didn't test it enough.
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Everything is pure speculation regarding the AMOLED panel around here, so we won't really know anything concrete until something happens, or someone gets a nasty burn-in. I doubt anyone will get a nasty burn-in though, but I guess someone will get some burn-in down the road, but that's pretty much expected.
I have a Galaxy Note (first gen.) that I used for about 18 months before getting a new device, and I've borrowed it to my mom. I checked it out again this week after not checking it out for about two years, and the display looks like ****, but it doesn't look more **** as it did the day I gave it to her, so it's "bad" if I'm trying to edit some photos, but it's not catastrophically bad at all. The only place it's burnt in is the statusbar, which is black on pre-lollipop versions if I remember correctly.

Hi clever people
So I'm a bit confused. I found this thread because I was afraid of a burn-in caused by the night clock too.
And I won't use it. But how about the always on display, then - by using that, is there a risk of shortening the life of the pixels? In that case, I'd just turn it off. But if not, well, then it's a neat feature

Well, I have set night clock every night, It doesn't burn the AMOLED screen. It's completely safe. Try it on your own, no risk They prevent burn in, because of brightness help keep prevent burn-in.

kylelopez20 said:
Well, I have set night clock every night, It doesn't burn the AMOLED screen. It's completely safe. Try it on your own, no risk They prevent burn in, because of brightness help keep prevent burn-in.
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Thanks. I was more curious, though, as to how the Always on Display feature might affect pixels and the screen lifetime too, and thus, if it'd be better to not use this feature

brawlysnake66 said:
No. Amoled displays don't suffer from that. Even high quality LCD displays like found on the iPhone will have a hard time causing burn in.
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False. AMOLEDS suffer burn in, and LCDs will rarely ever experience it.
---------- Post added at 11:43 PM ---------- Previous post was at 11:41 PM ----------
J.Biden said:
The pixels are stilll active though, shortening their "life". Will you notice any burn in or difference in screen quality in that area within a month or six? Probably not, but it'll burn in (or, leave a mark if you want) no matter what after 24+ months. AMOLED is a tricky technology, so I personally stay away from "AMOLED black" themes and whatnot. Why? The black areas are turned off, while the colored/lightened pixels are lit up. The areas that are "off" will have a longer "pixel life" than the ones most used, so it'll make a sort of "ghosting" effect after a while (2 years+). Using a theme or whatever that's "even", i.e not on and off at different places will give me an even "burn out".
I have no idea how good the EDGE's panel is though, so this is pretty much pure speculation, with some facts mixed in!
Click to expand...
Click to collapse
No offense that is the most stupid reason I've heard not to use dark/black themes. White themes ARE MUCH MORE LIKELY TO CAUSE BURN IN, PERIOD. You reduce burn in by reducing energy consumption and pixel usage.