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Tokyo, July 28, 2009 - (JCN Newswire) - Showa Denko K.K. (SDK) has developed a new structure for its organic electroluminescent (organic EL) devices, achieving approximately 40% in light output, which represents the highest level in the world. As a result, SDK has achieved a 30 lm/W emissive efficiency for its coated phosphorescent-polymer-based organic EL devices. ("Emissive efficiency" refers to the quantity of light emitted from light source, divided by electric power consumed.) The 30 lm/W emissive efficiency represents the highest level among coated-type organic EL devices that have been announced in the world.
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