this post was submitted on 20 Feb 2025
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Small study suggests dark mode doesn’t save much power for very human reasons (arstechnica.com)
submitted 2 months ago by [email protected] to c/[email protected]
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[–] [email protected] 7 points 2 months ago (1 children)

Surprised they went with such a small sample (n=10), you would think if you're spending all the time and money to design the study, you would try and get at least N=50.

Their approach also doesn't take in account that many smartphone OLEDs have automatic brightness.

[–] [email protected] 5 points 2 months ago

This issue isn't automatic brightness, it's OLED, which can selectively light portions of the screen, vs LCD, which has the whole screen at the same brightness all the time and blocks light.

A LCD with a global light source won't benefit from dark mod. A LCD with more localized lighting will benefit some. An OLED will benefit the most.