On Sat, 2009-02-07 at 08:02 -0800, Jesse Keating wrote:
On Sat, 2009-02-07 at 10:07 -0500, Dimi Paun wrote:
> - replace the background picture with just black
> - default to a inverted color scheme (predominantly black)
On modern hardware, black actually costs more power than white. In
order to make black, the existing white light has to be filtered.
Got my Kill-a-watt meter. I wasn't able to measure a difference between
a black screen and a white screen on my wife's eMachines m6805 laptop.
However, I measured a trashy old (1997) Sceptre 13in CRT with both solid
black and white desktop backgrounds and various resolutions and refresh
rates:
Textmode (Black) 40W
800x600@60 44W - 53W
1024x768@60 47W - 57W
800x600@75 49W - 58W
My ancient (1988?) Mitsubishi 26in TV ranges between 80W and 100W with
black and white screens.
So I'm definitely measuring a big difference between black and white
with CRTs. Signal bandwidth also makes a difference. Other than a few
laptops I don't own any LCDs to test though. The laptops show no
measurable difference.