Light emitting diode with improved efficiency
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United States of America Patent
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Nov 22, 2005
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May 12, 2000
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May 12, 1999
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Abstract
An LED, and in particular an LED employing emissive semi-conductors such as conjugated polymeric materials, consists of a pair of electrodes, one or more intermediate semi-conductor layers arranged therebetween and optionally one or more futher layers, and incorporates a microstructured feature adapted to manipulate spontaneous emission or propagation of light. The invention also consists of a method for the production of such an LED and the use of such a LED as an light emitting display.
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