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Nokia’s ClearBlack display technology explained: it’s all in the polarization


Nokia has a good thing in its ClearBlack display technology. Instead of pumping out higher brightness LCDs to offset the reflections of direct sunlight, the company devised a way of using polarizing filters, much like in a pair of sunglasses, to reflect the interfering light away from the eye. This allows you to not only see better in direct light, but increases true contrast to the point where you can’t often tell where the screen ends and the bezel begins.

As we noted in our Lumia 800 Hands-On, its AMOLED screen is remarkable, especially for one made up of a WVGA PenTile matrix; it’s much clearer and sharper than the equivalent-sized Super LCD, for example.

As Nokia’s Conversations blog notes, “ClearBlack display uses a sequence of polarising layers to eliminate reflections. Polariser layers used in display solutions are bit more sophisticated than in sunglasses. Light rays actually gets ‘processed’ many times on its way in and out of your phone’s screen.”

The effect is that what hits your eye is cleaner and more vibrant than one that hasn’t been filtered.

Hit up the Nokia Conversations blog post for full details.
Via: The Verge

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