[qplex]

"As an example, one commercial QVGA OLED display consumes 0.3 watts while showing white text on a black background, but more than 0.7 watts showing black text on a white background, while an LCD may consume only a constant 0.35 watts regardless of what is being shown on screen."

https://en.m.wikipedia.org/wiki/AMOLED

[cerberusss]

The citation was from 2009. I expect, or rather hope, that things have improved. Interesting link, by the way, and very useful to add to the discussion.

[DoreenMichele]

So it depends on the display and may become a thing of the past.

That's really good info.