IBM's researchers have also patented a related nano-patterning method that uses fluorescent spheres that can take the color red, blue or green.
ENGADGET: IBM brings the fight to counterfeiters with nano-sized authentication methods (video)
The phone detects the kind of lighting in use at the user's location-such as fluorescent, incandescent, and natural lighting-and automatically adjusts the screen's color balance to the optimal setting.
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