LIGHT EMITTING ELEMENT AND DISPLAY DEVICE

Embodiments provide a light emitting element and a display device including the same. The light emitting element includes a first electrode, a second electrode, and a plurality of emission layers disposed between the first electrode and the second electrode, wherein at least one of the plurality of...

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Bibliographische Detailangaben
Hauptverfasser: SHIN, HYOSUP, BAE, SUNG-SOO, SYN, HOJUNG, NAIJO, TSUYOSHI, CHU, CHANGWOONG, LEE, JIYOUNG, PARK, YUNJEE
Format: Patent
Sprache:eng
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Zusammenfassung:Embodiments provide a light emitting element and a display device including the same. The light emitting element includes a first electrode, a second electrode, and a plurality of emission layers disposed between the first electrode and the second electrode, wherein at least one of the plurality of emission layers include a hole transporting host, an electron transporting host, a phosphorescent sensitizer, and a first fluorescent dopant. The first fluorescent dopant comprises a pentacyclic fused ring core that includes one boron atom and two heteroatoms as ring-forming atoms, and at least one amine substituent of the fused ring core; the at least one amine substituent is substituted with at least one substituted or unsubstituted pyrenyl group; and a difference between a triplet state energy level of the first fluorescent dopant and a singlet state energy level of the first fluorescent dopant is equal to or greater than about 0.4 eV.