Pocketnow reports that Microsoft's engineers chose black backgrounds in Windows Phone 7 because it will be very useful with AMOLEDs (it'll save a lot of energy because OLEDs do not use any power on black pixels). There's also the option for a white background, used to enhance readability.

It's great to hear that Microsoft expects most devices to have AMOLED displays, although this is not really a surprise - back in January we ran a story that Microsoft will advice device makers to use AMOLEDs...

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Good to know!

When it come to mobile devices it's important to know that if you use black pixels it saves energy. And we all know that saving energy is key these days.

Samuel

Cambridge Isotope Laboratories - Deutreated Reagents and High-Purity Gases for OLEDsCambridge Isotope Laboratories - Deutreated Reagents and High-Purity Gases for OLEDs