Linked by Howard Fosdick on Tue 2nd Aug 2011 22:18 UTC
Editorial Your computer is an important energy consumer in your home. Can you save energy when using it? This article offers a few tips.
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RE: White instead of black
by transputer_guy on Wed 3rd Aug 2011 18:39 UTC in reply to "White instead of black "
transputer_guy
Member since:
2005-07-08

I think you are quite wrong there.

It is a fact that the LCD screen pixel structure is only about 5% efficient at letting the light through when fully on, that means 95% of whatever the light source is either CC tube or LED is blocked and is therefore turned to black body heat. If the screen is black it would just be 99.9% instead. To save power means controlling the light source power.

There was/is a company called Unipixel that had a LCD alternative that claimed 60% efficient light cell based on a neat MEMs opto capacitive structure. They even licensed it to Samsung in 2009, not a squeek since though. When driven by side lit LEDs, its power use would be far below todays LED LCD panels which are mostly already good enough.

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