Originally Posted by kevinp
I had a Samsung "Epic" phone from Sprint that had an OLED screen. I had to charge the phone twice a day and didn't really use it that much. I don't think the screen used less power than the HTC EVO I have now, but the screen was definitely brighter.
OLED screen power use depends on the colors displayed. A lot of whites and power usage goes through the roof, they draw virtually no power to display blacks. I personally really don't like the oversaturated colors, though.