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If B&W Ultra Power Saving is so efficient, why not use as ALWAYS ON SCREEN feature?

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BoneXDA
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Default If B&W Ultra Power Saving is so efficient, why not use as ALWAYS ON SCREEN feature?

Samsung introduced Ultra Power Saving mode, that's besides the usual turn-some-radios-off, sets TouchWiz into a low-demand black and white mode, most likely undervolting the SoC in the process. Sammy promises an extra day of standby in this mode.



So how about using the B&W mode for always-on display notifications?

While it's no e-ink display like the back of the YotaPhone, AMOLED can light up subpixels individually, and lower resolution displaying of non-graphic white content with 90% of all subpixels off and SoC at very low voltage could make sense. Especially if the new pixel arrangement is RGBW (I don't think it is for the S5), cause it would mean that of the 4 million sub-pixels, only a small % of 1 million white pixels would be on... we don't need full screen notifications, just part of the screen...

With some further SW tweak, the phone could recognize when is it in pocket (like Moto X) and when on table, so it should only display stuff then the phone is in horizontal position or when you move it etc. With AMOLED advertised for efficiency, wonder why Sammy haven't attempted something like this yet, maybe add an extra low-power chip to handle this little task (and always-on listening).

Thoughts? Potential? Possibilities?
 
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I think the sview cover is probably a better way of doing it. Its so easy to go from low power preview to full functionality
 
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Why do you want a black and white screen on all the time?? What year is it?

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Originally Posted by gordonzhao View Post
Why do you want a black and white screen on all the time?? What year is it?

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For when you are at the last 1% and need that extra juice to establish a conversation with 911 because you hit against a reef coral with your yatch in the bahamas and you are sinking with sharks waiting to eat you.
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Quote:
Originally Posted by BoneXDA View Post
Samsung introduced Ultra Power Saving mode, that's besides the usual turn-some-radios-off, sets TouchWiz into a low-demand black and white mode, most likely undervolting the SoC in the process. Sammy promises an extra day of standby in this mode.



So how about using the B&W mode for always-on display notifications?

While it's no e-ink display like the back of the YotaPhone, AMOLED can light up subpixels individually, and lower resolution displaying of non-graphic white content with 90% of all subpixels off and SoC at very low voltage could make sense. Especially if the new pixel arrangement is RGBW (I don't think it is for the S5), cause it would mean that of the 4 million sub-pixels, only a small % of 1 million white pixels would be on... we don't need full screen notifications, just part of the screen...

With some further SW tweak, the phone could recognize when is it in pocket (like Moto X) and when on table, so it should only display stuff then the phone is in horizontal position or when you move it etc. With AMOLED advertised for efficiency, wonder why Sammy haven't attempted something like this yet, maybe add an extra low-power chip to handle this little task (and always-on listening).

Thoughts? Potential? Possibilities?

You can enable B&W with the normal Power Saving, see @ 18:28:

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Originally Posted by dandroid13 View Post
You can enable B&W with the normal Power Saving, see @ 18:28:

True, but not as always-on notifications. It would just make sense on efficient individually lit AMOLED pixel screens.
 
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Making it always On will accelerate AMOLED burn in.

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Making it always On will accelerate AMOLED burn in.

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msavic6
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Originally Posted by system.img View Post
Making it always On will accelerate AMOLED burn in.

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It doesn't have to be always on, it could use the gyroscope inside the phone to know when it is being picked up and will then light up the screen.

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