Android Nexus One - Can I save energy with color scheme?

Question

I'm wondering what color-scheme is more energy-saving for AMOLED display?

I've already decided to manage c-scheme according to ambient light, thanks to this post:

Somewhat-proof, the link posted by nickf: Ironic Sans: Ow My Eyes. If you read that in a well lit room, the black-on-white will be the most pleasant to read. If you read it in a dark room, the white-on-black will be nicer.

But if I want to save battery power, should I use bright content with dark background or vice versa?

Is it possible anyway (they say it's not working for simple LCD)?

Answer 1

Yes, you can. The best you can do is use a red on black color scheme. Blue is more expensive than green, green more than red. White is the worst :)

To give you an idea, a static blue wallpaper (for instance a jellyfish in an aquarium) consumes more battery than the 3D galaxy live wallpaper.

Answer 2

Well, that wikipedia article you linked to says:

For example, our measurement shows that a commercial QVGA OLED display consumes 3 and 0.7 Watts showing black text on a white background and white text on a black background, respectively.

So according to that, a white-on-black scheme would use less power than a black-on-white scheme.

The AnandTech article you linked to is talking about regular LCD monitors, which is quite different technology to AMOLED.

I guess the best thing to do is give it a try: try on one colour scheme and see how long you can go between charges, then try on a different scheme.

Answer 3

Black!! I Google in black on my phone at http://bGoog.com to make my battery last longer. Since using black backgrounds I recharge my phone a lot less! There's info on it at bGoog.com/about