Will dark mode improve battery life given screen brightness is huge energy driver

nph

macrumors 6502a
Original poster
Feb 9, 2005
706
57
if most of the screen is dark shouldn’t that have a positive effect on battery life ?
 

bookemdano

macrumors 65816
Jul 29, 2011
1,381
762
No. Macs all use LCD screens which have the same screen brightness for every pixel (the backlight is independent of the LCD pixels).

OLED screens like in the iPhone X do benefit from Dark Mode, but no Macs offer OLED screens (yet)
 
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DoctorFedora

macrumors regular
Jun 8, 2010
141
58
In fact, strictly speaking, darkening pixels technically uses slightly more energy on LCDs, because you have to run electricity through the pixels to make them absorb some part of the light instead of just letting all wavelengths through.

I mean, it's not a huge difference overall, but still. Technically.
 
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