US Patent 7442449 Organic electroluminescence device
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Patent abstract
The present invention provides an organic electroluminescence device, by which high brightness is provided in a manner of forming a hole injection or transport layer using a material that lowers an energy barrier. The present invention includes an organic emitting layer between a cathode and an anode and a hole injection and/or transport layer between the anode and the organic emitting layer, wherein at least one of the hole injection and transport layers has a configuration of Formula 1,
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US Patent 07442449 Organic electroluminescence device US Patent 7442449 Organic electroluminescence device
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Patent Number
0744244900
Patent Number
744244900
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Infobox
Is a
Patent Jurisdiction
Patent Number
074424490
Date of Patent
October 28, 2008
0Patent Application Number
110840150
Date Filed
March 21, 2005
0Official Website
Patent Primary Examiner
Edits on 23 Sep, 2022
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Infobox
Is a
Patent Jurisdiction
Patent Number
074424490
Date of Patent
October 28, 2008
0Patent Application Number
110840150
Date Filed
March 21, 2005
0Official Website
Patent Primary Examiner
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US Patent 07442449 Organic electroluminescence device
Infobox
Is a
Patent jurisdiction
Patent number
07442449
Date of patent
October 28, 2008
Patent application number
11084015
Date Filed
March 21, 2005
Patent primary examiner
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