Organic electroluminescence device and electronic device
AssigneeIdemitsu Kosan Co., Ltd.
InventorsMasatoshi SAITO, Toshinari OGIWARA, Kei YOSHIZAKI, Yuichiro KAWAMURA
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AssigneeIdemitsu Kosan Co., Ltd.
InventorsMasatoshi SAITO, Toshinari OGIWARA, Kei YOSHIZAKI, Yuichiro KAWAMURA
Estimating the term…
An organic electroluminescence device includes an anode, an emitting layer, and a cathode. The emitting layer contains a first compound, a second compound, and a third compound, the first compound being a fluorescent compound, the second compound being a delayed fluorescent compound, the third compound being a compound represented by a formula (3). A singlet energy S1(M1) of the first compound, a singlet energy S1(M2) of the second compound, and a singlet energy S1(M3) of the third compound satisfy a relationship of a Numerical Formula 1. In the formula (3), X1 to X14 each independently represent a nitrogen atom or CR80. XA is NR95, a sulfur atom or an oxygen atom.
An organic electroluminescence device comprising:
9-10. (canceled)
Dependencies are inferred from the claim text.