Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Nobuharu Ohsawa0
Yusuke Nonaka0
Takahiro Ishisone0
Satoshi Seo0
Date of Patent
January 2, 2024
0Patent Application Number
174085880
Date Filed
August 23, 2021
0Patent Citations
...
Patent Primary Examiner
CPC Code
Patent abstract
Provided is a light-emitting element which includes a first electrode, a second electrode over the first electrode, and first and second light-emitting layers therebetween. The first light-emitting layer contains a first host material and a first light-emitting material, and the second light-emitting layer contains a second host material and a second light-emitting material. The first light-emitting material is a fluorescent material, and the second light-emitting material is a phosphorescent material. The level of the lowest triplet excited state (T
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