(Q)Auto-brightness - Galaxy S III Q&A, Help & Troubleshooting

Hey all. I was thinking, it is said that auto-brightness saves battery life oj your phone but surely ot uses more to chamge the brightness all the time. I travel a lot in work and am in and out of light which changes the brightness.
Is it really a battery saver? Want to save as much battery when in work.
Thanks.
Sent from my GT-I9300 using Tapatalk 2

Unless you manually set a very low brightness, yes it is. Note that most apps that do this from Play will use battery; the integrated AB feature does not.
In a similar vein, due to the nature of OLED panels, having dark backgrounds/themes/wallpapers will conserve battery over lighter backgrounds. Unlike LCDs with their LED backlights, OLED panels draw no power when the pixels are off (black).

Sweet. Thanks for the answer and extra ill take that as a christmas gift hehe
Sent from my GT-I9300 using Tapatalk 2

Related

[Q]SLCD Colors effect battery life? (White in particular)

with super amoled, if you use a black bg those pixels are just shut off and can save you some battery life. But the SLCD isn't as easy to see in the sunlight and i was curious if there is a difference in battery juice consumption with a white bg. Even black has to be luminated by the screen, not shut off pixels like S-AMOLED. Is there a difference between black n white on SLCD's battery drain?
I'm looking for a more technical answer with reasoning rather than "just try em both and find out".
White would be easier to see in sunlight without having to turn up the brightness past 25%.
Please don't quote me on this but I believe the difference in battery usage would be very negligible. It does take less power to display a black LCD screen than a white one but not enough to provide any noticeable difference in battery life like it does on AMOLED devices.
connerrs said:
Please don't quote me on this but I believe the difference in battery usage would be very negligible. It does take less power to display a black LCD screen than a white one but not enough to provide any noticeable difference in battery life like it does on AMOLED devices.
Click to expand...
Click to collapse
Thanks. I did just remember about a cyanogenmod setting to filter the color of the screen and it quote "potential battery saver". Im not sayin battery life is an issue, just curious on knowing the differences in power consumption by color. But like u said, its probably very minimal tho. My 2 past devices were S-AMOLED and I didn't bother with predominantly white backgrounds because it actually made a difference. Time to be able to enjoy the entire spectrum on SLCD without worry! Haha one of the few benefits of LCD
Sent from my PG86100 using XDA Premium App
I think it might use more power on LCD screens. Or, at least, I remember reading that. However, back on my Hero, I tried the effect and it seemed to use the CPU more to render the effect. The phone got slower while in red, blue, etc. I think it is really only for AMOLED screens. Phones using that type of screen benefit a lot more. But I am most likely wrong. It has been a long time since I read up on this tweak.
Sent from my iPhone with the bigger GeeBees.
notasimpleway said:
I think it might use more power on LCD screens. Or, at least, I remember reading that. However, back on my Hero, I tried the effect and it seemed to use the CPU more to render the effect. The phone got slower while in red, blue, etc. I think it is really only for AMOLED screens. Phones using that type of screen benefit a lot more. But I am most likely wrong. It has been a long time since I read up on this tweak.
Sent from my iPhone with the bigger GeeBees.
Click to expand...
Click to collapse
that sucks that the phone becomes sluggish, but then again it was the hero which is 1/4 the phone the 3D is...
also, i'm trying to make sense of it being for AMOLED screens, cuz the pixels are individual LEDs (or so i think) which are on/off individually. but LCD is Liquid.Crystal.Display, which to me makes more sense to render the entire display a certain color... i dunno, probably talking outta my a$$ but hopefully someone with a definite answer can chime in..
thanks for all the info & opinions from you guys, i feel we're getting closer

display brightness

What do you keep your display brightness at?
I left mine on auto since I got it bit now just changed it to 100%. Im gonna see how much worse it is on the battery because the trade off might be worth it for how awesome it looks at full brightness.
Coffinfeeder said:
What do you keep your display brightness at?
I left mine on auto since I got it bit now just changed it to 100%. Im gonna see how much worse it is on the battery because the trade off might be worth it for how awesome it looks at full brightness.
Click to expand...
Click to collapse
I gotta go full on bright at all times. Why buy a phone with an awesome screen and throttle the beauty of it. Plus somebody might be looking over your shoulder. HaHa!!
With both my Captivate and Infuse, I never used auto brightness. I always use 0% unless I'm outdoors, as these screens are really readable even in well lighted rooms.
I keep mine on 100 percent. I dont see the point of having such an amazing screen if i can't enjoy it at full capacity.....
Sent from my SAMSUNG-SGH-I717 using xda premium
Today my first day with the phone I left it at half way.
I have the brightness all the way down and its still really bright!
I use auto but at night in bed even at lowest setting its still pretty bright so I use an app called screen filter and dims the screen even lower then samsungs lowest setting. I would think this would save on battery life as well if you were to use this app more often?
Auto. I think this phone tends to be on the brighter side compared to others when on auto. I'm not saying that as a bad thing though, just an observation.
Sent from my Ceramic White LTE Galaxy Note using xda premium app
Made2Last said:
Auto. I think this phone tends to be on the brighter side compared to others when on auto. I'm not saying that as a bad thing though, just an observation.
Sent from my Ceramic White LTE Galaxy Note using xda premium app
Click to expand...
Click to collapse
Probably due to the increased number of pixels/increased area. Even with the same output per pixel, the note will be brighter than say an infuse or a captivate because there are more pixels shining towards your eyes.
I keep mine below 10% unless I am in bright sunlight. The screen is easy to read and less brightness over such a large screen means far less power consumption. Just my humble two cents.
--Mike
Sent from one of many Samsung devices.
I don't think that using the screen at less than 100% diminishes its beauty. Most times, for me at least, 100% is way too bright. Also, using the screen at 0% will show much better battery life. I notice huge drain when using my Infuse at 100% for any amount of time. I can literally watch my percentage drop as I catch up on XDA posts and facebook/twitter. The display is easily the biggest drain of all for any phone, and using it on 100% will drain your battery even quicker. Just don't complain about crappy battery life when it happens please.
If battery life was unlimited and not a factor would you use full brightness at all times?
No, as I said, the screen is too bright at times. Having it at 100% also heats up the phone more quickly.
I keep mine at 100 all the time for the same reason other posters have stated. Why take away from the main selling point of the phone (at least it is to me). I suppose I'm lucky in that I have an office job and spend a good deal of time at my desk during the day. I can always plug in for an hour or two if I need to, but so far with the Note I haven't needed to. No heat issues either.
Like most other things android, it always comes down to personal preference.
How is the text in full sunlight? This will be my work phone also and I need to be able to check e-mails in the sunlight.
reubenray said:
How is the text in full sunlight? This will be my work phone also and I need to be able to check e-mails in the sunlight.
Click to expand...
Click to collapse
There is a fair amount of glare, of course, but I was able to easily read emails in direct sunlight. One of the first things I tried on Friday when I got it...
Thanks for the reply - this has to be a huge upgrade over my HTC Tilt 2. I have to either find shade or cover it up with my hand. Hopefully with the Note I will not have to put on my reading glasses to see.
10% indoor Auto outdoor
Sent from my SAMSUNG-SGH-I717
the2rrell said:
I keep mine on 100 percent. I dont see the point of having such an amazing screen if i can't enjoy it at full capacity.....
Click to expand...
Click to collapse
Enjoy while you can Ever heard of screen burn in? 100% brightness will only speed up the burn in. That's the same effect when you buy a Plasma TV and use the torch mode except AMOLED screens will burn in 10 times faster than Plasma screens.
foxbat121 said:
Enjoy while you can Ever heard of screen burn in? 100% brightness will only speed up the burn in. That's the same effect when you buy a Plasma TV and use the torch mode except AMOLED screens will burn in 10 times faster than Plasma screens.
Click to expand...
Click to collapse
I still feel plasma > led > lcd
I loves my panasonic viera

Screen must be 100% brightness

So we have a great phone with a horrible screen brightness problem.
Samsung touts its great battery life, (well yah with a dim screen).
I find I must always use 100% brightness setting to make the screen
even 1/2 as bright as my older phones (Evo, etc.). Even at 100% brightness,
white is not white, it is grey/light brown and the battery only lasts a few hours.
Very sad, I wish we could do something about this. And if you look closely,
a lot of colors are really a color with a grid pattern all over it. I am 47 and my
eyes are not that great, but pentile still sucks IMO, no matter how much
review sites rave about the great screen (yah it is big and crisp), but it
still is a dim sucky screen.
hotstocks said:
So we have a great phone with a horrible screen brightness problem.
Samsung touts its great battery life, (well yah with a dim screen).
I find I must always use 100% brightness setting to make the screen
even 1/2 as bright as my older phones (Evo, etc.). Even at 100% brightness,
white is not white, it is grey/light brown and the battery only lasts a few hours.
Very sad, I wish we could do something about this. And if you look closely,
a lot of colors are really a color with a grid pattern all over it. I am 47 and my
eyes are not that great, but pentile still sucks IMO, no matter how much
review sites rave about the great screen (yah it is big and crisp), but it
still is a dim sucky screen.
Click to expand...
Click to collapse
thats why u go with the one x~~
since screen is the most importatn part of the phone you interact with, i chose to get the best screen on the market. however, i do envy ur battery life though.
Sent from my HTC One X using Tapatalk 2
The battery of the GS3 is bigger than the One X.
What would be the difference between GS3 %100 brightness and 75% brightness HTC one X in terms of battery?
Sent from my AT&T GALAXY SIII Stock•ROM root€d
TitaniumBarbell said:
The battery of the GS3 is bigger than the One X.
What would be the difference between GS3 %100 brightness and 75% brightness HTC one X in terms of battery?
Sent from my AT&T GALAXY SIII Stock•ROM root€d
Click to expand...
Click to collapse
Actually the one x is really bright screen, and It could make some difference but only cause of the crazy over killing of apps
Sent from my SGH-T999 using Tapatalk 2
TitaniumBarbell said:
The battery of the GS3 is bigger than the One X.
What would be the difference between GS3 %100 brightness and 75% brightness HTC one X in terms of battery?
Sent from my AT&T GALAXY SIII Stock•ROM root€d
Click to expand...
Click to collapse
actually, s3 at full brighness is one x at around half, maybe 40 percent
blazed from my Viper Bitten One X
You can get like a 4300 to 4500 mah extended battery off ebay or amazon
with a back cover for like $20. Then the phone will last twice as long, more
than enough to cover a heavy day at 100% brightness. Plus it will make the
phone thicker, I can't stand how thin and delicate the GS3 is, it practically
slips out of your hand, they should have made the phone thicker with a
bigger battery to begin with (Droid Max).
Turn off auto adjust screen time option in the display settings to make your screen brighter. It'll make your whites better as well.
hotstocks said:
You can get like a 4300 to 4500 mah extended battery off ebay or amazon
with a back cover for like $20. Then the phone will last twice as long, more
than enough to cover a heavy day at 100% brightness. Plus it will make the
phone thicker, I can't stand how thin and delicate the GS3 is, it practically
slips out of your hand, they should have made the phone thicker with a
bigger battery to begin with (Droid Max).
Click to expand...
Click to collapse
In regards of battery, don't trust third party brands unless if they are authorized by the maker themselves. For batteries, third parties usuallly suck in many ways, in worst cases, overheating.
blazed from my Viper Bitten One X
Kevin Ma said:
actually, s3 at full brighness is one x at around half, maybe 40 percent
blazed from my Viper Bitten One X
Click to expand...
Click to collapse
I wouldn't go that far. I had my GS3 turned up to 100% earlier today and compared it to my sister's Evo 4G LTE, and it was practically the same brightness. I assumed her phone was set to around 50-60%, but when I checked her settings, it was set to 100%. Hers was a bit brighter, obviously, but they were a lot closer brightness-wise than I thought they'd be.
If you need your brightness at 100%, you may want to get your eyes checked. Also, which you might already be aware of this, Samsung roms have a brightness setting in the internet browser as well.
Sent from my SPH-L710 using xda app-developers app
hotstocks said:
So we have a great phone with a horrible screen brightness problem.
Samsung touts its great battery life, (well yah with a dim screen).
I find I must always use 100% brightness setting to make the screen
even 1/2 as bright as my older phones (Evo, etc.). Even at 100% brightness,
white is not white, it is grey/light brown and the battery only lasts a few hours.
Very sad, I wish we could do something about this. And if you look closely,
a lot of colors are really a color with a grid pattern all over it. I am 47 and my
eyes are not that great, but pentile still sucks IMO, no matter how much
review sites rave about the great screen (yah it is big and crisp), but it
still is a dim sucky screen.
Click to expand...
Click to collapse
That is strange. I have not experienced this at all. I have both the GS3 and the original Evo and they seem about the same at 100%. The GS3 is, (to my eyes) easier to see because of the contrast. Meaning I feel like I can get away with setting the brightness to a lower setting without sacrificing readability. As for battery life I'm getting a consistent 14 hours with moderate to heavy use. (It's a new toy, I can't put it down.)
Hopefully you can compare your phone to another, see if they're any different.
I have mine at 75ish % the auto is pretty garbage. I can't wait till cm9/10.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
I don't need my eyes checked.
Forget about the whites not even being as white as the Evo.
Try a game like ShadowGun, even at 100% brightness the game
is dim and oversaturated colors. On the Evo the game is significantly
brighter and objects/details are easier seen, not everything is dark.
This phone gets GREAT blacks, but everything is darker because of it.
I had the HOX. **** phone. The screen on the SG3 is much better.
Sent from my SGH-I747M using Tapatalk 2
pimpahlishis said:
I had the HOX. **** phone. The screen on the SG3 is much better.
Sent from my SGH-I747M using Tapatalk 2
Click to expand...
Click to collapse
thats really one of the worst points u can ever bring up lol. the gs3 beats one x in a lotta areas, but definitely not screen Lol
blazed from my Viper Bitten One X

[Q] Lcd3 battery saving?

Coming from the gnex with an amoled screen, blues and black colors saved more battery. What colors, if any, make the LCD3 work less thus saving battery?
Sent from my HTC6435LVW using xda premium
On an LCD screen, all the light is supplied by the backlight, and the color is affected by what the actual LCD panel allows to pass through it. This means that the backlight (which by far consumes the most energy of the screen) will use the same amount of power regardless of what is displayed on the screen. The color may slightly affect the amount of energy used, but not significantly like with an AMOLED screen.
This will give you an idea of the amount of how much the power consumption varies based on color.
CastleBravo said:
On an LCD screen, all the light is supplied by the backlight, and the color is affected by what the actual LCD panel allows to pass through it. This means that the backlight (which by far consumes the most energy of the screen) will use the same amount of power regardless of what is displayed on the screen. The color may slightly affect the amount of energy used, but not significantly like with an AMOLED screen.
This will give you an idea of the amount of how much the power consumption varies based on color.
Click to expand...
Click to collapse
I was thinking that but I wasn't for sure. Thank you for the link and the informative answer. Over 100 views and I didn't think I was going to get a reply hahah.
Sent from my HTC6435LVW using xda premium

Using inverted apps to save battery

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
Sent from my PC36100 using Tapatalk 2
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

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