We know that our old Note have an AMOLED display, this means that the black pixels are almost turned off, so you can experience a good and sharp image instead of blueish, LCD TFT displays. It's a bit buggy because of dead pixels from manufacturer, clipping issue in videos and screen burn-in (not in every phone, just in some). Another complication of this screen is that if you put brightness at lowest, it's still very bright so if you want to read something in your bed, or use the phone without iluminating the whole room, there's an app that you will like:
Galactic Night
This app have much great features: you can use the phone at any combination of colors you want: Black and Red, Black and Blue, Black and Green, No blue (to prevent insomnium), B&W etc.
So what the hell have this to do with the battery? Well, it's easy, think this:
You're running low battery, and need extra minutes to finish your task. Use Black and Red setting
You are in a travel, without any charger, and want your phone turned on all the day. Use Black and Red setting
If you use this setting, your battery will be incremented to a 25% to 40% in duration. Also as it uses only red pattern of pixels and black, your phone will have less and it will be perfect to read at night (even it will be more healthy as it doesnt uses blue leds which causes insomnium).
The app is free to use and requires ROOT. Works only on Samsung phones with amoled screens.
******USE IT AT YOUR OWN RISK****** Using these options for a long time (DAYS without turning off the screen for even a single second) will result a permanent lost of the used color.
LINK: GOOGLE PLAY
Nice share ...i will try for battery backup.
Good finding mate.
Thanks
Sent from my GT-N7000 using Tapatalk
Thank you @galaxynote2, just looking for something like this. :good:
Related
Hi
As in the title, just wondered if you had a white screen and a black screen, which one needs more power for the lcd to display? Or is it the same? Or to produce black needs no power as lcd screens are black anyway even when its turned on before its displaying anything?
Thanks
w
Pixels on an LCD screen don't actually emit light (that's the backlight's job). Hence, the lowest power state for an LCD that's powered on is white, because all the pixels are "powered off" in that state. However, the power consumption of those things is so small that you probably won't see any measurable difference.
red 0%
green 0%
blue 0%
= black
red 100%
green 100%
blue 100%
= white
you do the math
Neemo said:
red 0%
green 0%
blue 0%
= black
red 100%
green 100%
blue 100%
= white
you do the math
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Click to collapse
Actually, you need to understand how the display works to answer the question correctly.
With an LCD you have a white backlight that is on no matter what the display is displaying; white, black, images... Each pixel is made of a red, green, and blue part, each with a shutter in front of it. White would be all shutters open and black all shutters closed.
Some LCDs use power to open shutters and these are called "normally black" because unpowered, all shutters will be closed. Others are the opposite, requiring power to close the shutters, and are called "normally white."
So the answer is that a normally white LCD will use less power displaying white, and a normally black LCD will use less power displaying black. But it really doesn't use that much power to open and close the pixel shutters, so the difference isn't that big.
OLED displays (such as AMOLED) are different, though. Each pixel actually produces its own light, so for these white uses way more energy than black.
maxh said:
So the answer is that a normally white LCD will use less power displaying white, and a normally black LCD will use less power displaying black. But it really doesn't use that much power to open and close the pixel shutters, so the difference isn't that big.
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Click to collapse
The difference is so small as to be unmeasurable for all practical purposes; you won't notice any difference whatever to battery life by changing your colour scheme, for example.
As has been noted by others, OLED displays work very differently - there, you can make a big difference to power consumption by keeping everything as dark as possible.
Hi all,
Is there any way to reduce screen brightness even lower than what we could do with built-in settings? Thanks.
Sent from my Transformer TF101 using Tapatalk
Wear sunglasses?
I'd love to know too. The screen is just a touch too bright in bed at night
jimbob1971 said:
Wear sunglasses?
I'd love to know too. The screen is just a touch too bright in bed at night
Click to expand...
Click to collapse
I'd like to know this too, I have it at the lowest setting usually and it's still a little bright, I don't even need to turn it up outdoors.
On my modded galaxy s, the darky rom come with an app called "screen filter", it enable you to get your screen WAY dimmer, may be worth a look for in honeycomb, nice for froyo/gingerbread, you even have it in the task menu... my 0.02cents
I noticed that i always have to set it to the max cause it cut down on the glaze. This screen is like a mirror during the day.
http://forum.xda-developers.com/showthread.php?t=731032
try that app (requires root)
AdjBrightness doesn't work. I'm running Modaco ROM HR3, which means it's rooted, but AdjBrightness keeps saying it requires root. Thanks anyway.
Sent from my Transformer TF101 using Tapatalk
Try "Brightness level" by curvefish. I can't guarantee it will work but it works on my g tablet?
Sent from my DROIDX using Tapatalk
I don't think any apps can make it dimmer, without rooting and system access. Brightness level widget doesnt make it any dimmer (it reports the brightness level as 8%, when the system brightness bar is all the way to the left, and when set to 0% in BLW the screen doesnt change).
One of the first things that I look for before buying any device is can the screen be set to a low enough brightness. Manufactures often overlook this in their quest to make screens as bright as possible, and in one case I ended up taping a piece of plastic over the screen of an Acer netbook as a filter to get the brightness down low enough to use in a dim room. In the case of the Transformer, I could not try before I bought, but the screen does go down pretty dim.
+1 for Screen Filter. I don't have a TF yet so I haven't tried it but it works great on my SGS and doesn't require root. I suspect it may not work as well on an LCD as on my SAMOLED screen on my phone since it doesn't actually reduce the backlight, but it's still worth a try.
Thanks, screen filter works!
I'm using CN X2 Pro, 2 weeks old. I noticed that I get 1-2 seconds of ghosting/screen burn from the always on display when I unlock the phone. I still see the dark numbers on my light background. This fades after 1-2 seconds but I've never noticed this on other phones with AoD's? Do you think it's a sign my display might suffer in the future?
I have the same issue with AOD turn on, there is a ghost effect and disappear after few second. I found if you choose dimmer clock color, there is no issue. So, try switch to different clock style, try avoid those white color clock.
Hi. I have the same problem. What do you do guys? Other light spot and the same trouble
Hello. I think its's because of AMOLED screen.
I started getting it with AOD after updating to Android/ColorOS 11.
Previously, the AOD would move around the screen so it didn't happen.
I've had to turn off AOD because of this.
And what do you do? Send to service or something?
lukeaddison said:
I started getting it with AOD after updating to Android/ColorOS 11.
Previously, the AOD would move around the screen so it didn't happen.
I've had to turn off AOD because of this.
Click to expand...
Click to collapse
Interesting. Yes, prolonged static displays should be avoided.
AMOLED screens do not suffer from burn in. They degrade over time from usage.
They have a long but finite life span.
High screen intensity is the biggest degradation accelerant plus time. High heat ie sunlight should be avoided when possible.
The highest energy blue pixels burn out first, lowest energy red pixels last.
Damage shouldn't be observable in a screen so new. These screens are rated for thousands of hours.
The ghosting may be a firmware glitch and nothing more.
Avoid using over 50% intensity except when needed.
Don't use in direct sunlight except briefly.
Make use of black wallpapers and dark mode as much as possible. Whites and blues should cause the most damage. Reds the least.
blackhawk said:
Interesting. Yes, prolonged static displays should be avoided.
AMOLED screens do not suffer from burn in. They degrade over time from usage.
They have a long but finite life span.
High screen intensity is the biggest degradation accelerant plus time. High heat ie sunlight should be avoided when possible.
The highest energy blue pixels burn out first, lowest energy red pixels last.
Damage shouldn't be observable in a screen so new. These screens are rated for thousands of hours.
The ghosting may be a firmware glitch and nothing more.
Avoid using over 50% intensity except when needed.
Don't use in direct sunlight except briefly.
Make use of black wallpapers and dark mode as much as possible. Whites and blues should cause the most damage. Reds the least.
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Click to collapse
So what do you suggest? Warranty, hard reset or just learn to live with it. can update help you think?
pynio92 said:
So what do you suggest? Warranty, hard reset or just learn to live with it. can update help you think?
Click to expand...
Click to collapse
A hard reset will do nothing but waste your time and patience.
If you really have damaged pixels, warranty as the display is likely defective.
If it's not actual physical damage only a firmware update can fix it. It may take months or never come at all. So again, I send it back either to be fixed, replaced with a new unit or a 100% cash refund. Nothing less.
Use screen testing app like this one:
Display Tester – Apps on Google Play
Test your screen and figure out whether it has hassles.
play.google.com
I use Screen Test but can't pull up a link. Playstore may have pulled it... as usual.
I guess I will only send the problem is that I bought it abroad and it will probably take two months
pynio92 said:
I guess I will only send the problem is that I bought it abroad and it will probably take two months
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Click to collapse
That sucks. If the problem is physical it may degrade rapidly; a new display shouldn't have these symptoms.
blackhawk said:
That sucks. If the problem is physical it may degrade rapidly; a new display shouldn't have these symptoms.
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Click to collapse
if there is a bright point, you can see it for about 5 seconds on a gray background. the brighter the screen is, the clearer it is. after a while it disappears
pynio92 said:
if there is a bright point, you can see it for about 5 seconds on a gray background. the brighter the screen is, the clearer it is. after a while it disappears
Click to expand...
Click to collapse
Sounds like hardware. Either way unacceptable.
Hello, is anyone realize that if you put full brightness, go to clear sun and see the screen there is a turned square like "burn in" in fingerprint sensor area?
This is normal or my screen have an issue?
You have to see the screen in angle.
Using full brightness and especially in sunlight is a bad idea. Limit it to a few seconds at a time if at all. There many thousands of semiconductors in addition to the OLEDs themselves in a screen. Heat can damage them.
I always have my phone in auto mode. Today one friend "played" with it and show me that.
Lol, for some even the slightest details are noticed... It maybe normal; the result of how the fingerprint sensor is intergrated into the screen.
The Screentest app give you a better idea.
Blue pixels die first, red last. If it's present equally on especially these two colors it's probably normal.
hey guys got question for u all
i like so much the flip 4 but i sell it cause i had 1 major proble
i bought iphone 14 pro max but i really want my flip 4 again
my problem is any time im using the phone for facebook whatsapp and regular stuff with regular use (not even hard use at all)
the screen dimm to much cause the phone is warm
if i turn on the extra brightness its dimm alot faster with minimum use
so i i never used the extra brightness but always on the full brightness but i always use minimum use and the screen is dimm
any solution or its like that???? (the phone is ok i had 1 before and it was the same)
i have no case nothing i never pleyed games with my phone just regular use....any tips for what to do or this is how the phone act?
and just for you know im on android 13 latest thx for the help !!!
sounds like you have some sort battery saver turned on, have you checked in settings? this is not normal behaviour.
beanbean50 said:
sounds like you have some sort battery saver turned on, have you checked in settings? this is not normal behaviour.
Click to expand...
Click to collapse
sure man i never use battery saver always full brightness all the way up then the phone get hit very easy and dim the screen the temperature outside is around 25 c
nobody got this iisue? no way!!
It is clear that your mobile phone has a technical problem that needs maintenance, but try to return it to factory settings
amincom said:
It is clear that your mobile phone has a technical problem that needs maintenance, but try to return it to factory settings
Click to expand...
Click to collapse
ok but this my third phone loll, my sisters got the same iisue not just me, and we bought the phones in deffrent places :-(
nosferatu123 said:
ok but this my third phone loll, my sisters got the same iisue not just me, and we bought the phones in deffrent places :-(
Click to expand...
Click to collapse
maybe i use app that make the phone to hot the the screen dimm?
im using whatsapp facebook instagram and messanger maybe? anyone knows?
On the Flip 4 I use the Adaptive Brightness "on" setting, and Dark Mode. Your results may vary, but here's what I've seen.
In the summer, on a sunny day, I'll notice that the phone will automatically try to be as bright as possible, so the screen is readable. (I'm pretty sure when this happens the quick display panel's screen brightness slider color changes to orange. Maybe the color depends on the wallpaper/color palette.) And I never see the screen do this "extra bright" thing indoors. Only outside and only in direct sunshine.
So far so good. I think this is as everyone expects the phone to operate.
Given all this, sometimes I'll notice the screen brightness will vary, even though I'm still outside and still in the same brilliant sunshine. I've noticed this commonly when checking Google News, and for example, I'm reading a story and scrolling slowly through the article. In particular when the screen is mostly black text on a white background.
So, in this situation, that is, a largely bright background, in the bright sun, my phone will both:
Get warm to the touch, on the back-side of the phone, where the two batteries are, but not up where the cameras, CPU and memory are located. This makes sense because "scrolling text" isn't that demanding on the CPU, but I am driving the OLED screen hard.
Also the front of the phone (the OLED screen itself) can feel warm. Even in the screen's crease, away from the battery. Since the image is mostly white, all the OLED dots are "on" and give off heat. Then again, I'm in brilliant sunshine and almost any surface will get warm.
Further, I'll notice that the phone screen will automatically get dimmer after a bit of time (perhaps a minute or two of extra-bright before the dimming). This I attribute to the software doing one, or both of:
Dialing back the screen brightness, to prevent OLED burn-in.
Dialing down the power usage by the screen, to prolong battery life and/or limit the battery temperature.
What's more, after little more time, still in the same bright lighting conditions, perhaps reading the same story, the screen might be noticeably extra-bright again. It's as if the phone has given the display "a rest" and is willing to go "extra bright" again.
In short, I think the phone screen is trying hard to be brilliant in the brightest of sunshine. But there are limits in how hard you can drive an OLED screen, and how long the battery can power the screen.
All of this before we start to talk about what design limits come into effect when the CPU or graphics processing come into play, both or which compete for:
Power from the battery, and
The ability of the phone to keep itself cool.
This phone's form-factor is all about folding in half. A slab form-factor phone, I suspect, will be far more capable for heavy CPU, graphics, and provide a bigger battery and better heat disipation.