[jeffbee]

> no difference between black and anything else.

Just a detail that isn't quite right in the article: black is actually the highest power state for LCDs. The backlight draws the same power all the time (for a given brightness setting) but the pixels draw more power when they are black.

[jpambrun]

Many monitors now have local array dimming to increase contrast. It's probably fair to assume that dimmed backleds lead to decrease power consumption.