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So, I stumbled across something really cool (quite) a few minutes ago: apparently our devices really can power a few pixels selectively. In my accidental confirmation of Samsung's claim, I was able to get one of NoLED's notification icons to show on the screen without lighting up the rest of the black area for literally a split second.
Here's how:
1. You will need the app "NoLED" in order to continue. In the NoLED settings, make sure you have the icon for sms activated as well as the proximity sensor. My sms icon is set to a lime green, but I doubt that will affect this "test."
2. Send yourself a text message either from your own phone or from some other sms capable device. If sending it to yourself from your own phone, quickly lock the device using the power button after pushing send.
3. Allow NoLED to start flashing around the icon for sms. Wait roughly 5 seconds for the proximity sensor to activate.
4. For steps 4 and 5, it would be wise to be in a completely dark room to be able to more easily tell the difference between the true black and the lit black. With the proximity sensor now active, place your finger over it. The screen should turn off.
5. Now, upon removing your finger pay close attention to the icon that will appear. The icon will show up a couple of milliseconds before the rest of the screen activates.
6. Repeat steps 4 and 5 if needed to witness the true black.
This is proof that our SAMOLED screens can display true black.
I am not a developer so I have no idea how to act upon this find to, if possible, adjust settings in the our software to allow true black.
If you happen to know someone who is capable of modifying the kernels or ROMs for our devices to allow this behavior, then by all means have them follow the above steps to see the proof.
Though I hope this minor find can give someone the inspiration and/or start place needed to make these adjustments, I realize this is but a pebble in a world of boulders. Therefore, I remain skeptical and strongly advise others not to get your hopes up.
If anything, it is at least nice to see that Samsung wasn't just lying about the capabilities of SAMOLED screens, but also makes one wonder why they don't allow true black from the start.
Now, time to hit the hay.
Goodnight all.
Sent from my SCH-I500 using Tapatalk
On the epic, when you power it up to the initial "galaxy s" screen, you can see true black...the fascinate doesn't have that opening animation?
Sent from my SPH-D700 using XDA App
A_Flying_Fox said:
On the epic, when you power it up to the initial "galaxy s" screen, you can see true black...the fascinate doesn't have that opening animation?
Sent from my SPH-D700 using XDA App
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It probably did at one point but since I changed kernels and boot animations trying to get rid of verizon crap that animation doesn't show up anymore, which sucks cause I actually liked that one.
Sent from my SCH-I500 using Tapatalk
When i power the device off in a dark room, at the end of the power off cycle I get a black screen that isn't black like the other black screens when the phone is on. It looks like it's glowing in the dark or some junk, and you can see a weird pattern like something smudged across the screen.
Is this the type of thing you're talking about? That our devices, when showing black, are actually working to show that black and not just "turning the pixel off" er whatever?
chronster said:
When i power the device off in a dark room, at the end of the power off cycle I get a black screen that isn't black like the other black screens when the phone is on. It looks like it's glowing in the dark or some junk, and you can see a weird pattern like something smudged across the screen.
Is this the type of thing you're talking about? That our devices, when showing black, are actually working to show that black and not just "turning the pixel off" er whatever?
Click to expand...
Click to collapse
Yes, if I'm understanding you correctly that is what I'm talking about. That glowing, almost grey effect shouldn't need to occur in order to show black. I hope it is something that can be hacked, but I don't know.
Sent from my SCH-I500 using Tapatalk
I guess this makes me lucky to have 1 pixel stuck on blue. I can easily see the screen turn off in almost any lighting condition.
Couldn't it be that what you're seeing is some kind of residual charge left at power off or some pixels that change states at slightly different rates? I've seen it too and it seems to be a different pattern every time. Also, some of the forums regarding screen burn have talked about samoled break-in so maybe that has an impact as well. Can't factor out power supply leakage either, I guess.
Sent from my SCH-I500 using XDA App
garywojdan81 said:
Couldn't it be that what you're seeing is some kind of residual charge left at power off or some pixels that change states at slightly different rates? I've seen it too and it seems to be a different pattern every time. Also, some of the forums regarding screen burn have talked about samoled break-in so maybe that has an impact as well. Can't factor out power supply leakage either, I guess.
Sent from my SCH-I500 using XDA App
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Click to collapse
It is true all of those things could be probable, but in order to prove that the pixels aren't turning off you could disable the lock and screen dimming functions with an app and display a black image. Then in low light conditions you could easily see the blacks are actually a very dark shade of grey. If the pixels were turning off the image would over time obtain deeper blacks as the residual charge runs out.
I, and many others, suspect the phones are programmed to not turn off the pixels. Only question is, why? The only thing this type of test wouldn't be able to prove or disprove is power supply leakage.
Sent from my SCH-I500 using Tapatalk
atrich0608 said:
I guess this makes me lucky to have 1 pixel stuck on blue. I can easily see the screen turn off in almost any lighting condition.
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Click to collapse
That sucks to have a stuck pixel! Have you tried having the phone replaced? I don't know for sure but a stuck pixel might fall in the manufacturer defect category, so you might be able to have the phone swapped for free?
Sent from my SCH-I500 using Tapatalk
Or you can go and download Screen Test and get to the black screen part of the test. It is so hard to notice, but blacks are ever so slightly lighter than if you were to turn the screen off, but it is really hard to catch. Either way, they trump any LCD black levels. They even make my Panny plasma look bad
GoogleAndroid said:
Or you can go and download Screen Test and get to the black screen part of the test. It is so hard to notice, but blacks are ever so slightly lighter than if you were to turn the screen off, but it is really hard to catch. Either way, they trump any LCD black levels. They even make my Panny plasma look bad
Click to expand...
Click to collapse
Didn't know about that app but I'm sure it would work just as you say. And by the way that would be much easier to notice if you were in complete darkness. I'm completely satisfied with these amazing screens, but it would be awesome if we could obtain true black.
Sent from my SCH-I500 using Tapatalk
evilhunter101 said:
Didn't know about that app but I'm sure it would work just as you say. And by the way that would be much easier to notice if you were in complete darkness. I'm completely satisfied with these amazing screens, but it would be awesome if we could obtain true black.
Sent from my SCH-I500 using Tapatalk
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Click to collapse
I HAVE tested it in darkness. It is just such a small difference most people's eyes probably couldn't even pick up on it. Blacks are pretty black on this.
evilhunter101 said:
That sucks to have a stuck pixel! Have you tried having the phone replaced? I don't know for sure but a stuck pixel might fall in the manufacturer defect category, so you might be able to have the phone swapped for free?
Sent from my SCH-I500 using Tapatalk
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It's only one and it's on the side, it does work sometimes. I use noled and it seams to come on at the exact same time as the notifications. Cover the proc sensor and it turns off.
Have you tried jscreenfix from the market? It's free and alot of feedback suggests it can work on stuck pixels.
Sent from my SCH-I500 using XDA App
GoogleAndroid said:
I HAVE tested it in darkness. It is just such a small difference most people's eyes probably couldn't even pick up on it. Blacks are pretty black on this.
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Click to collapse
Calm down man, was just a suggestion lol. But that's interesting, considering mine is extremely noticible in darkness even with the brightness turned all the way down. I suppose each phone would behave differently in this respect though.
atrich0608 said:
It's only one and it's on the side, it does work sometimes. I use noled and it seams to come on at the exact same time as the notifications. Cover the proc sensor and it turns off.
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Click to collapse
Well I guess that isn't too bad, hopefully it isn't a sign of things to come. Back when I had my Storm 1, I had a red stuck pixel. It wasn't too bad either until it started spreading a few months later. That's okay though, I was one of the lucky ones who got a Storm 2 as a replacement from Verizon. If you havent, you should definitely try that app mentioned above though.
Sent from my SCH-I500 using Tapatalk
Yep I tried that app. I kind of like it now, maybe I will name it lol. I will save it for later, if I scratch the screen or something It will give me an excuse to get a new phone
Hi there,
I was looking at my phone the other day. Whenever the LCD displays black, i can see around 12-13 little colour spots on my screen. I was thinking LCD burn in or something but my screen hasn't been on for long periods of time displaying the same thing. The spots are VERY faint, It's hard getting a picture of them. Any threat? Could it grow and spread to other parts of the screen possibly?
Cheers
Dial *#*#3424#*#* and check the display test. It could be dead (sub)pixels of a certain colour.
Sent from my Desire HD using XDA App
Cheers mate. I'll try that now.
Sent from my Desire HD using Tapatalk
Okay, from what it seems in the display test, there is no permanent problem with my screen. On the black slide the screen has no issues. Thanks a lot for the help.
Sent from my Desire HD using Tapatalk
EDIT: Having a closer look it turns out them colour spots are still there. Most likely be a replacement for me. Cheers.
I thought I had a similar issue. After closer inspection it looks like 2 of those 'touch points' (Can I call it that? I'm referring to those dots that make up a matrix that is present on the screen itself, best viewed at certain angles when the screen is black)
Well it looks like 2 of those points are overly glossy, like an over active pixel. Seems most noticeable on a white background. Anyway to sort that out?
Well, I called HTC. They aren't aware of anything like this being 'normal' so I presume its a faulty screen. Mines getting picked up by HTC on the 4th for a repair/replacement. I would rather do without the hassle but I just don't want it to worsen.
Sent from my Desire HD using XDA App
Ok, i own my galaxy about 5 months. I turned the backlight to 0% in andromax, started the xda app and saw my battery, signal indicator and time as a shadow at the brown xda loadscreen. brightness was always set to auto.
I know this effect on plasma tvs, but with amoled, shouldn't be possible by design.
any thoughts are welcome
Sent from my GT-I9000 using XDA App
It's usual degradation of OLEDs. As the statusbar is quite static those pixels that are always light degrade faster than pixels than other ("not so static") pixels.
Now the more degraded pixels are darker on the same voltage levels and this can be seen when the statusbar is hidden.
That's one of the disadvantages of OLEDs currently.
Sysiphus1981 said:
Ok, i own my galaxy about 5 months. I turned the backlight to 0% in andromax, started the xda app and saw my battery, signal indicator and time as a shadow at the brown xda loadscreen. brightness was always set to auto.
I know this effect on plasma tvs, but with amoled, shouldn't be possible by design.
any thoughts are welcome
Sent from my GT-I9000 using XDA App
Click to expand...
Click to collapse
Try rebooting your phone, then in the keypad dial *#0*# and test the screen with the options there check if there is any error in colour reproduction. Or test with images created with paint with only a single colour paint and test it with the screen on galaxy s.
If you observe any colour out of place or not uniform throughout, it might due to hardware issue of the amoled screen.
Hope this helps
checked via sgs tools secret codes (the code from above) lcdtest. degration is there for green and blue, hard to see in red.
will test some disco flash app, maybe it will get better like with plasma panels.
all in all, it is only annoying and the display will get damaged by design. I wonder, if there is a theme for the bar with less contrast grafics, like most tvstation did with there stationsymbol.
Sent from my GT-I9000 using XDA App
The blue pixel organic compound of AMOLED will degrade the quickest. That's the reason these phones are programmed to be more blueish when new, so that as it degrades, the blue should still be visible until the screen dies.
I own my SGS I9000 now since the 25th of June and i don't have that problem, how long is your total amount of Screen on time? I think by intensive use my approx. Screen on time per day is about 2 h. 6 Months are 180 days a 2h are 360h. Industrial Keys for Control Panels with OLED Displays have a average lifetime of 15000h, newer one 30000h.
I don't knew the lifetime for Samsungs AMOLED Screens but i guess it sould be around 10 to 15k hours. So i would contact seller, or samsung service about that.
Regards Christopher
Sent from my GT-I9000 using XDA App
In the UK you're covered by the Sale of Goods Act - the phone should be expected to last a good 5 years or so. I didn't agree to anything about a failing screen so if it doesn't last an appropriate time then I'll be expecting a replacement screen.
Sent from my GT-I9000 using XDA App
You know what? I went to check my screen under white, red, blue and green; I have some burn in for the battery icon as well. Lol.
To avoid more damage, I will be using the device in varying orientation.
Sent from my GT-I9000 using XDA App
I wonder how fast the SAMOLED will die if its used as a deskstand for 8hrs / day
kempas said:
In the UK you're covered by the Sale of Goods Act - the phone should be expected to last a good 5 years or so. I didn't agree to anything about a failing screen so if it doesn't last an appropriate time then I'll be expecting a replacement screen.
Sent from my GT-I9000 using XDA App
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Click to collapse
UK law says a product is expected to last 12 months however Samsung do have a 24 month warranty on this product which is nice. If i was you kempas i would have that repaired (screen replacement) as it's completely free except for the time it takes.
Samsung Warranty Information
Just remember to flash back a factory firmware before you send it to a repair centre, custom/modified firmware voids your warranty in any country.
I've got my phone for about 4 months, everyone else I know can see a visible silhouette on the AM/PM symbol with a blue/white image displayed on the screen.
I guess in a year's time its gonna be completely screen burned.. would this mean that SAMOLED is pretty much in infancty/trial stage?
Sysiphus1981 said:
I turned the backlight to 0% in andromax,
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Click to collapse
There is no backlight on AMOLED and SAMOLED screens.
EarlZ said:
I wonder how fast the SAMOLED will die if its used as a deskstand for 8hrs / day
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Click to collapse
Pretty damn quickly. Well it wont die, but burn-in will set in and the screen brightness will degrade.
Although if you use an app like alarm clock Plus it shouldn't be a problem. When it goes into screensaver mode it keeps the background black and only uses a small portion of the screen to display the time and date. It also moves the time and date around to prevent burn-in.
I use it at night when my phone is charging. The black pixels do emit a tiny amount of light but that shouldn't do any harm.
EarlZ said:
I've had my my SGS for about 4 months, everyone else I know can see a visible silhouette on the AM/PM symbol with a blue/white image displayed on the screen.
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Click to collapse
I've had phone for 6mths. Most of the time on 0% brightness. I never noticed it before but after reading your post I noticed the AM/PM burn in VERY VERY slightly (only on pure blue background)
From now on I'm using 24hrs clock format LOL.
Let's face it though guys, u can't keep a perfect screen forever. I even have a single stuck pixel but I learned to live with it. (1 pixel on a 480x800 screen is fairly unnoticeable, especially if it's a good colour).
It was not noticable till i read about this thread, i hate knowing things like this! hahah
Anyway we can fix the burn in ?
EDIT:
The 24hr format barely helps since theres already a very faint image of the numbers burning in.
Im guessing after a yr of usage the screen burn will be very obvious... with this said im having 2nd thoughts of getting another AMOLED based screen haha
to fix LCD TV's you flush with white. so leave a pure white screen running over night. this kinda resets the crystals.
worth a try with the phone also with the galaxy s you need to have 8 dead pixels to change the screen so if affected area is over 8 pixel should be fine.
Sent from my GT-I9000 using XDA App
The AM/PM sign is displayed by a white pixel so Im not sure displaying a white color overnight can help fix the issue.
Having the screen replaced is not an option here in where I live, its gonna take over 60-75 days for them just to replace the screen and chances are it will be a refurb screen or they will just outright refuse replacement since its a burn in.
The affected area is probably more than 8 pixels.
it resets the crystals so should work. worth a try if someone has a burn
Sent from my GT-I9000 using XDA App
sorry not cyrstals the leds
Sent from my GT-I9000 using XDA App
iammodo said:
it resets the crystals so should work. worth a try if someone has a burn
Sent from my GT-I9000 using XDA App
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Click to collapse
The AM/PM is displayed with a white color by default, so how can displaying a a full white screen fix/reset the image burn ?
btw the image burn is a faint black.
Im also guessing with the GB update they removed the AM/PM so help prevent screen burn and prolong the intitial burn instead of 4 months to probably 8 or 12.
I just got my warranty replacement yesterday. Noticed last night in a dark room that there is a small stuck blue pixel in the virtual soft button area, really an eye-sore. My first device had a hole in the backlight that looks like a big spec of dirt, so not as bad as that, but still irritating. I always seem to have the worst luck with ordering electronics (went through 5 sensations going around the warranty system )
Does anybody know of a way that it might be possible to fix this pixel? It's only visible when there is any blue or white on the screen above it. So if I download that pixel fix app and set the background color to blue, that stuck pixel screams, but if I set it to black or gray, it's not visible at all. It's only on if something above it is on. Almost like it's a short in the signal or something. Anybody know of a way to fix it? I've tried the pixel-fix it apps to no avail, albeit I haven't tried for more than 5 minutes.
Hi
MusicMan374 said:
I just got my warranty replacement yesterday. Noticed last night in a dark room that there is a small stuck blue pixel in the virtual soft button area, really an eye-sore. My first device had a hole in the backlight that looks like a big spec of dirt, so not as bad as that, but still irritating. I always seem to have the worst luck with ordering electronics (went through 5 sensations going around the warranty system )
Does anybody know of a way that it might be possible to fix this pixel? It's only visible when there is any blue or white on the screen above it. So if I download that pixel fix app and set the background color to blue, that stuck pixel screams, but if I set it to black or gray, it's not visible at all. It's only on if something above it is on. Almost like it's a short in the signal or something. Anybody know of a way to fix it? I've tried the pixel-fix it apps to no avail, albeit I haven't tried for more than 5 minutes.
Click to expand...
Click to collapse
Pixel fixer apps don't really work, some may report success only because it is an intermittent pixel fault that will just come back or would have fixed itself anyway. If it was as easy as flicking through a serious of colours the manufacturers of LCD panels would do this already as it costs them loads of money in throwing away panels with faulty pixels.
Some pixels will fix with gentle pressure, but often will just come back.
I'm sorry to say the only option is an exchange.
Regards
Phil
I'm getting a red pixel that shows up randomly. Either by the notification bar or navigation bar. It goes away if I touch the screen. Is this something that could get worse?
Hi
ceejay83 said:
I'm getting a red pixel that shows up randomly. Either by the notification bar or navigation bar. It goes away if I touch the screen. Is this something that could get worse?
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Click to collapse
You have a faulty pixel that corrects itself sometimes when given a little bit of flexing as would happen when you touch the screen. It is unlikely to spread to other pixels, but one day the pixel may become stuck red permanently or may just fix itself for good.
It isn't uncommon to have pixels like that, although with improvements in manufacturing it's getting rarer. If you think it will annoy you, you have little option but get it exchanged.
Regards
Phil
MusicMan374 said:
I just got my warranty replacement yesterday. Noticed last night in a dark room that there is a small stuck blue pixel in the virtual soft button area, really an eye-sore. My first device had a hole in the backlight that looks like a big spec of dirt, so not as bad as that, but still irritating. I always seem to have the worst luck with ordering electronics (went through 5 sensations going around the warranty system )
Does anybody know of a way that it might be possible to fix this pixel? It's only visible when there is any blue or white on the screen above it. So if I download that pixel fix app and set the background color to blue, that stuck pixel screams, but if I set it to black or gray, it's not visible at all. It's only on if something above it is on. Almost like it's a short in the signal or something. Anybody know of a way to fix it? I've tried the pixel-fix it apps to no avail, albeit I haven't tried for more than 5 minutes.
Click to expand...
Click to collapse
I would appreciate if this discussion continued on the general forum I made to discuss these issues...
Thanks
http://forum.xda-developers.com/showthread.php?t=2024710
Euler MD said:
I would appreciate if this discussion continued on the general forum I made to discuss these issues...
Thanks
http://forum.xda-developers.com/showthread.php?t=2024710
Click to expand...
Click to collapse
Didn't realise you were a mod
Its a strangely behaving pixel too. It only shows if there are a lot of blue sub pixels activated on the screen. Example, if the entire screen is blue, the stuck pixel will scream, but if its red, green, or black on then rest of the screen (dark video or picture or something) the pixel is black. Unlike any stuck pixel I've had before. Only stuck blue if the rest of the screen has blue... And if the pixel is supposed to be showing black. If it's showing white or gray, it'll function properly, but if it's supposed to be black, it'll be blue.
Sent from my Nexus 4 using xda app-developers app
Hey all,
Yesterday morning woke up to my MZF's screen being all weird. Anything dark looks fine, but the white levels are very subdued and even seem to have a slight reddish tinge. And there's also these two black dots that wont go anywhere. Seem larger than just a dead pixel. This has been going on for a full day now; every once in a while it seems that the colors go back to normal, but the problems seems to always return.
Photos below show my MZF (right) next to my buddy's MZF (left). Both displays are at full brightness. Didn't purchase protection through Best Buy or Verizon, so I'm likely gonna have to deal with Motorola Customer Service. Yay.
Any one else seen this? Any ideas?
Do a factory reset and see if it calibrates itself
Sent from my XT1650 using Tapatalk
Yeah, I did that right after posting. No luck. Thanks tho.
Try the hardware tests from device help?
LeeMullinsII said:
Try the hardware tests from device help?
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Click to collapse
Tried those too, no luck. Have a new MZF on its way from Motorola, warranty is covering it.
I JUST sent my Moto Z Force in for nearly this same issue. I was cleaning the screen off and I had a black dot pop up and after about 3 hours of it showing up I had a bright yellow line running from the dot to the top of the screen. Warranty is covering mine as well.
I had the same problem with the color/contrast on my Moto Z Force, but without any black dots. Mine had the same blue tint/haze to the display. I did a factory reset with no luck. I am getting a warranty replacement today, but this morning the problem disappeared (6 days after the problem started). I think I'm still going to take the replacement.
I have a little different issue. Screen has 4 rows of multi colored small lines. Unreadable, yet the touch and buttons are still functioning, any ideas?
blynkofaneye said:
Hey all,
Yesterday morning woke up to my MZF's screen being all weird. Anything dark looks fine, but the white levels are very subdued and even seem to have a slight reddish tinge. And there's also these two black dots that wont go anywhere. Seem larger than just a dead pixel. This has been going on for a full day now; every once in a while it seems that the colors go back to normal, but the problems seems to always return.
Photos below show my MZF (right) next to my buddy's MZF (left). Both displays are at full brightness. Didn't purchase protection through Best Buy or Verizon, so I'm likely gonna have to deal with Motorola Customer Service. Yay.
Any one else seen this? Any ideas?
Click to expand...
Click to collapse
pixel dead, the solution is to change the screen.