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Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Junya Ogawa0
Masashi Tada0
Date of Patent
November 30, 2021
Patent Application Number
16606100
Date Filed
April 16, 2018
Patent Citations Received
Patent Primary Examiner
Patent abstract
There is provided an organic EL element having high efficiency and high driving stability despite having a low driving voltage. An organic electroluminescent element has a light-emitting layer between an anode and a cathode which face each other, and the light-emitting layer contains a first host selected from among indolocarbazole compounds represented by formula (1), a second host selected from among biscarbazole compounds represented by formula (2), and a light-emitting dopant material:
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