White or Black Background for Battery Saving?

Londinium over 4 years ago

Hi everyone,

I would like to know which of the background color options actually saves more battery?

The black background with white information or vice versa?

Thank you for your time,

Cheers,

Top Replies

shrijith1 over 4 years ago in reply to Londinium +2

These are Memory-in-pixel displays meaning it takes memory only when changing states/refreshing. So ideally it should not matter whether it's black or white background.
trux over 4 years ago in reply to Bullet +2

Bullet said:
Power glass is above the display. See my picture.

Yes, that's correct, it is the same picture I already posted here, just from another angle.

Bullet said:
outer ring of powerglass takes 100…
Bullet over 4 years ago +1

Hi

On MIP displays it dosent matter

All Replies

0 David_x44 over 4 years ago

Good question. Who knows ?

0 Bullet over 4 years ago

On MIP displays it dosent matter

0 David_x44 over 4 years ago in reply to Bullet

And its different between white or black background for absorb sun rays ?

0 trux over 4 years ago in reply to David_x44

David_x44 said:
And its different between white or black background for absorb sun rays ?

No, since the solar panels are in front, and around the display, not behind it. The light reflected from the display won't have any significant effect.

0 shrijith1 over 4 years ago in reply to trux

No, there is a Solar panel behind the display too but with 10% Photovoltaic capability.

0 trux over 4 years ago in reply to shrijith1

shrijith1 said:
No, there is a Solar panel behind the display too but with 10% Photovoltaic capability.

Nonsense. The Solar PowerGlass is a transparent solar panel integrated into the front watch glass, and hence it is in front of the display, not behind it. Behind it, it would be useless (and would make no sense using a transparent solar panels behind the display)

0 shrijith1 over 4 years ago in reply to trux

DC Rainmaker should be wrong then. Quoting from his review.

There’s a second solar panel you can’t see – despite being the entire display face. Under the display is another solar panel that has a 10% photovoltaic level. This panel is of course larger than that of the visible edge pieces, but is also getting 10% of the sun’s rays, due to the display blocking much of it. Importantly though, both panels are below the top glass– so it’s not like you feel the solar areas or can scratch it.

0 Londinium over 4 years ago

And what about my original question? :)

Black or white background on our Instinct Solar for battery/energy saving?

0 shrijith1 over 4 years ago in reply to Londinium

These are Memory-in-pixel displays meaning it takes memory only when changing states/refreshing. So ideally it should not matter whether it's black or white background.

0 trux over 4 years ago in reply to Londinium

shrijith1 said:
DC Rainmaker should be wrong then

Yes, definitely wrong, apparently they do not understand at all how it works. Have a look for example at the following video from Garmin - it clearly shows where the Power Glass transparent solar panel is. Anyway it is enough to have a bit of common sense, and it must be clear that placing a solar panel behind the display is a pure nonsense. Not only it would be covered by the display, but it could not even provide a white reflective background, since solar panels absorb the light.

Londinium said:
And what about my original question

That was already correctly answered in the first reply by @Bullet - the state (white/black) does not matter, only the change of the state consumes some significant energy.