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US Patent 7651790 Organic light-emitting device

Patent 7651790 was granted and assigned to Samsung on January, 2010 by the United States Patent and Trademark Office.

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Patent abstract

An organic light-emitting device is provided that includes an emission layer containing a phosphorescent dopant and a bipolar phosphorescent host interposed between a first electrode and a second electrode. The bipolar phosphorescent host is a compound represented by formula 1:A—C—B  (1)

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