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US Patent 9484544 Organic electroluminescent device with multiple phosphorescent emitters

Patent 9484544 was granted and assigned to OTI Lumionics on November, 2016 by the United States Patent and Trademark Office.

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Patent
Patent
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Patent attributes

Patent Applicant
OTI Lumionics
OTI Lumionics
0
Current Assignee
OTI Lumionics
OTI Lumionics
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Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
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Patent Number
94845440
Patent Inventor Names
Zhibin Wang0
Jacky Qiu0
Michael Helander0
Zhenghong Lu0
Date of Patent
November 1, 2016
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Patent Application Number
144187940
Date Filed
July 31, 2013
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Patent Primary Examiner
‌
Caridad Everhart
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Patent abstract

A multiple emitter organic light emitting diode (OLED) is provided. The OLED comprises a host having a triplet energy gap. At least one emitter having a triplet energy gap greater than the triplet energy gap of the host is doped into the host and at least one other emitter having a triplet energy gap less than the triplet energy gap of the host is also doped into the host.

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