AMOLED: More black = More life?

[Guest Matt174e]

Does having more black areas on the screen cause the battery to last longer? I'm not a pro when it comes to AMOLED tech, but it seems like any black pixels on the screen are basically "off". I guess due to the lack of a backlight being necessary.

So if I was viewing an image file that is 100% black, is the phone taking up the same amount of power as if I had the phone in lock mode?

[Guest damienloh]

but it seems like any black pixels on the screen are basically "off". I guess due to the lack of a backlight being necessary.

Yes so Samsung default the theme to black.

http://en.wikipedia.org/wiki/Active-matrix_OLED

Edited January 1, 2010 by damienloh

[Guest Tylwith]

Does having more black areas on the screen cause the battery to last longer? I'm not a pro when it comes to AMOLED tech, but it seems like any black pixels on the screen are basically "off". I guess due to the lack of a backlight being necessary.

So if I was viewing an image file that is 100% black, is the phone taking up the same amount of power as if I had the phone in lock mode?

yes a black screen will make your battery last longer

So if I was viewing an image file that is 100% black, is the phone taking up the same amount of power as if I had the phone in lock mode?: No, for several reason.

1 if you didn't switch off the backlight this one will stil take power.

2 in lock mode some of the operating system are in sleep mode so taking less cpu.