I think it does save battery power. On IOS devices, the light on the
display is turned off, or at least on a very low setting. On the mac, I
don't use the screen curtain, instead I turn the brightness down to 0
Original message:
Ok, one of my notorious "just wondering" questions.
I've heard many discussions about whether screen curtain saves battery
life in laptops and the smaller devices. I'm wondering if screen
curtain works by modifying information that's already been passed to
the display, or whether it bypasses the display altogether. If it's
used on an Ipod, for example, does it still use a lot of resources?
Does anyone know how it works, technically speaking?
Thanks,
Teresa
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