Just a quick question...
Will using an alarm clock/nightstand app where the screen stays on all night damage an AmOLED screen?
Thanks in advance
Sent from my GT-I9100 using XDA App
Most "good" alarm clock apps have night mode that dims your screen to almost no brightness, and that constantly moves the digits on the screen to avoid burn in. The dimmer you set the screen, the longer it will serve you. Remember, OLED pixels, just like Plasma pixels, just like LCD backlight, lose brightness with time.
If I meet you 6 months from now, with my SGS2, and you buy me a brand new SGS2, and we compare all 3 screens on full brightness, we will see that the present I am getting is the brightest, my old SGS2 is the second-brightest, and your alarm-abused SGS2 is the least bright.
Thank you for your advice. Ive used the apps before with iPhones and the Xperia Arc but wasnt too sure on it effects on AmOLED.
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Yes you can burn in an amoled screen. So make sure your app moves the image and doesn't keep a constant static image in any one location.
Related
Hey everyone, normally there is a setting under development that you can put a check to leave the screen on while charging the GSII. I looked and no box to check. Anyone know if there is a different way to do this on the GSI?
Sent from my GT-P7510 using XDA Premium App
http://forum.xda-developers.com/showthread.php?t=1288070
Probably not a good idea. AMOLED screens can suffer from burn in. Likely why Samsung removed the option. Many Nexus One owners will testify to this because they have a faint image of the Froyo notification bar forever on their screen.
Sent from my SAMSUNG-SGH-I777 using xda premium
Correct. Burn in is a real concern on any OLED/AMOLED screens as blue pixels have very short life span. Don't leave it on for extended period. Don't use the max brightness all the time.
Thanks everyone. That makes sense, they removed this option from the phone. I always use the Auto brightness on my GSII. I did always use this option on my Nexus S to leave screen on while charging.
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I use screebl from my htc inspire and it seems to work good on this device.
Inspire is a LCD screen and won't get burn-in. DON'T do it for any OLED/AMOLED screens. You get burn-in very easily.
foxbat121 said:
Inspire is a LCD screen and won't get burn-in. DON'T do it for any OLED/AMOLED screens. You get burn-in very easily.
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I've left my Cappy AMOLED screen on for hours at a time and pretty much always while charging. I've never had (or heard of) any issues with burn in. Is the AMOLED Plus on the SGSII the issue or am I just lucky with my Cappy?
cliffgardner said:
I've left my Cappy AMOLED screen on for hours at a time and pretty much always while charging. I've never had (or heard of) any issues with burn in. Is the AMOLED Plus on the SGSII the issue or am I just lucky with my Cappy?
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Sometimes you will have to be on special background to see the effect. A lot of Captivate onwers, Galaxy S owners and Samsung Focus owners found out the hardway. Just search screen burn-in in the respective forums. The blue pixles used to be only 2000 to 4000 hours of life span. I'm pretty sure Samsung has improved it to something like 8000 to 14000 hours but there is no specifics released by Samsung. So, you can count those hours to see how that will affect your screen burn-in.
Some phone screens get burn-in quite easily than others. So there is manufacture variations as well. I personally don't want to risk it. It's easier to get burn-in on these screens than today's Plasma TVs which typically has 80,000 to 100,000 hours half-brightness lifespan, or 10 times less likely to get burn-in than our phone screen. And TVs usually display motion videos instead of static text on the phone.
Thanks for clearing it up. Agreed--I do not want to risk it.
Dear Friends,
I have noticed something on my SGS2. When I have it on low brightness and I view an even colored background I see impurities (ripples) in the screen. They don't come from the application or site I am viewing but from the screen itself. Does this have something to do with the AMOLED display. Do you have similar experiences when you view the screen with for example 15% brightness. ?
Thank you
Shouldn't be there. Exchange it.
Most of the devices have these lines you mention. Unfortunately.
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I see this new device .... usualy on gray color low brightness
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You can try comparing it with a phone of a friend or the one in the shop. Usually on low brightness AMOLED+ screens have ripples, lines, flaws of varying degrees. On regular to high brightness it's not visible.
If you're on warranty you can try having it exchanged if it really bothers you.
Good luck.
If it's normal I won't worry anymore thanks for your help So always. This community is so great
I'm thinking about using my gs2 as a desktop clock over night.
Putting the gs2 in a dock station and using an app which minimize the screen backlight to a minimum.
My question is will the clock burn in?
Thanks
sent from your mom's iPhone
I do that every night.. the LCD goes off automatically after some 30 mins or so.. So no burn ins.. even if it doesn't the screen will not burn..
I want to let the screen the whole night on. The app that I use got this option.
sent from your mom's iPhone
LED based screen generally don't have that problem. The burn in problem is a lot more common in LCD and Plasma screens.Thought if u wanna be extra sure, try to use dark colours for the display, that should keep the screen happy. i have used my screen as a flashlight during some house parties, where in I left the screen on for over 2 hours with bright white background and that didn't damage the screen, so I think u should be ok with low brightness, dark colours (if u leaving it overnight)
It's like this.
sent from your mom's iPhone
Price of SGS2 i would buy a cheap alarm clock no burn in then .
jje
for sure no problem... I think that kinda background would give u no trouble even on a LCD and maybe Plasma.. Go ahead.. get the app and enjoy ur alarm clock
JJEgan said:
Price of SGS2 i would buy a cheap alarm clock no burn in then .
jje
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Such a great help I see.lol
Sent from my GT-I9100 using XDA
AMOLED doesn't suffer from burn-in literally speaking. What happens is that when you have a static image consisting of black colors (in your case the background) along with other colors (the clock, moon image, etc.), the colored pixels will lose brightness while the black pixels are basically turned off, meaning that they'll retain their brightness. So when you view a static blue/grey image (best colors to show early signs of burn-in), you'll notice that the parts where the clock was in the middle are darker than the rest of the screen. So yeah, just buy a cheap clock.
Anyone know if the true HD IPS+ screen is similar to the AMOLED in that black pixels dont use as much power? For example, would we have the same power saving benefits of black wallpaper and inverted apps as a phone with an AMOLED screen?
Nope because the LCD tries and replicate black's SDI the screen is still on and using power
Sent From My AT&T LG Optimus G
REDFOCZ said:
Nope because the LCD tries and replicate black's SDI the screen is still on and using power
Sent From My AT&T LG Optimus G
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I don't know, are you sure? I would be willing to bet that even though power is used to emit something, it's only a fraction of the power used for bright colors.
Sent from my LG-E970 using xda app-developers app
As far as I'm aware, LCD is still continually and constantly backlit, unless you have one of those dynamic backlighting schemes like on some TVs where there are zones that dime to provide blacker blacks. The backlight is a separate source as LCD cannot emit its own light.
OLED provide the source of the light as well as colour, so when the pixel is black, it is actually off.
So, REDFOCZ's response is correct.
AMOLED screens don’t require a backlight. The benefit of losing a backlight is apparent: these screens are able to produce blacks so deep that the screen pixels can shut right off. This can save battery life if you use a background that is dark in color or black. LCD screens still require the back light on those using power.
Sent From My AT&T LG Optimus G
http://www.slashgear.com/lg-optimus...y-s4-pro-and-super-strength-battery-26243930/
Sent from my LG-E970 using xda app-developers app
Either way I have to say I get awesome battery life on this phone
Sent From My AT&T LG Optimus G
Thanks for all of the thoughtful responses everyone! I don't even know why i'm trying to milk more battery life out of this phone (old habits from the captivate days i guess)! My experience with the battery life is great!
Can't find the article I thought I bookmarked because the question came up on the Infuse forums months ago but-- REDFOCZ- +1
http://forum.xda-developers.com/showpost.php?p=25144455&postcount=63
Will using inverted apps save battery on the nexus 10? Or does it only work for amoled screens?
That trick only works on AMOLED devices. Sorry.
Yeah that would be nice
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The LCD back light is always on using battery, no matter what color your displaying. With AMOLED, only the sections of the screen displaying color are on, and the black sections are portions of the screen that you could say are "turned off". AMOLED works by exciting a membrane with electrons, without using a back light.
To quote myself from the Nexus 4 forum:
"Simple answer: There is no affect on battery life. It will drain just as fast on white as it will on black.
Basic screen technology lesson incoming...
The image displayed on a regular LCD screen (aka most phones) will not affect your battery life. Only AMOLED screens (aka most Samsung phones) are affected by this phenomenon because the image is also the lightsource.
Battery life with LCD screens is affected by the backlight brightness. The backlight covers the whole back, is always white, and only shines through the LCD to allow you to see the image. Turn up the brightness, consume more power. Turn down the brightness, consume less power. Has nothing to do with the image on the screen.
Amoled screens do not shine through anything, the image they produce is also producing the light. That's why blacks use no power (off), and whites use max power (all on).
The end."
Sent from my Nexus 10 using xda app-developers app