How far would you go to extend the battery life on your Android phone that uses an AMOLED screen?
Would you order the pixels to display certain colors as seen above to save energy? Android engineer Jeff Sharkey took 5 Nexus Ones (Nexi?) and only powered each color channel seen in an AMOLED screen (red, green, and blue). Apparently, Jeff found out with an industrial-level power meter that by only using red pixels, which could serve as a night-vision mode, used the least power.
“Filtering to show only red pixels only requires 35% of the original baseline OLED panel current, on average. Adding back the baseline current, the best case overall is about 42% of the original system current, effectively doubling the battery life. Also, showing only red pixels doubles as an awesome night vision mode, perfect for astronomy.”
To get your night-vision fix on your Android, check out his blog, then expect that the modder and hacker communities (xda-developers comes to mind) will come up with a solid hack that can do this easily.