August 17th, 2011, 09:10 PM
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n00b DevH'er
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Join Date: Aug 2011
Posts: 2
Time spent in forums: 19 m 52 sec
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Two-color LED could lead to better screens
A silicon light-emitting diode (LED) that can quickly switch between producing red and blue light could ultimately lead to smaller pixels for high-resolution displays.
LEDs can normally only emit light of one color. A new study shows that adding a certain rare earth metals can allow them to switch between two colors.
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