US Patent 7952271 Organic light-emitting device
Patent 7952271 was granted and assigned to Samsung on May, 2011 by the United States Patent and Trademark Office.
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Patent abstract
An organic light-emitting device includes a substrate; a first electrode; a second electrode facing the first electrode; an organic layer disposed on the first electrode; and an emitting layer interposed between the organic layer and the second electrode. The concentration of inorganic impurities within the organic layer is 1000 ppb or less. The organic light-emitting device has high light-emitting efficiency, low driving voltage, high brightness, and long life span.
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Patent Inventor Names
Dong-Hun Kim0
Jae-Hyun Kwak0
Jung-Ha Son0
Mi-Kyung Kim0
Min-Seung Chun0
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US Patent 07952271 Organic light-emitting device US Patent 7952271 Organic light-emitting device
Infobox
Patent Number
07952271
Patent Number
7952271
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US Patent 07952271 Organic light-emitting device
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Is a
Current assignee
Patent jurisdiction
Patent number
07952271
Date of patent
May 31, 2011
Patent application number
12175829
Date Filed
July 18, 2008
Patent primary examiner
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