Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Takao Hamada0
Satoshi Seo0
Kyoko Takeda0
Kanta Abe0
Hiromi Seo0
Date of Patent
April 23, 2024
0Patent Application Number
173454300
Date Filed
June 11, 2021
0Patent Citations
...
Patent Primary Examiner
Patent abstract
A light-emitting element having a long lifetime is provided. A light-emitting element exhibiting high emission efficiency in a high luminance region is provided. A light-emitting element includes a light-emitting layer between a pair of electrodes. The light-emitting layer contains a first organic compound, a second organic compound, and a phosphorescent compound. The first organic compound is represented by a general formula (GO). The molecular weight of the first organic compound is greater than or equal to 500 and less than or equal to 2000. The second organic compound is a compound having an electron-transport property. In the general formula (GO), Ar
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