ORGANIC ELECTROLUMINESCENT ELEMENT

To provide an organic electroluminescent element which can exercise a high light-emission efficiency, a low driving voltage, and a long life at the same time.SOLUTION: A light-emitting layer 320 includes a plurality of hosts and dopants. One of the hosts is made of the same material as that of an el...

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Bibliographische Detailangaben
Hauptverfasser:	HAN SONGIE, PARK HOCHEOL, KIM YOUNGMO, SONG HYOBUM, JUNG SEUNGEUN, KIM TAE HYEON, KIM GEUNHYEONG
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	ELECTRICITY
Online-Zugang:	Volltext bestellen
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Beschreibung
Zusammenfassung:	To provide an organic electroluminescent element which can exercise a high light-emission efficiency, a low driving voltage, and a long life at the same time.SOLUTION: A light-emitting layer 320 includes a plurality of hosts and dopants. One of the hosts is made of the same material as that of an electron transfer support layer 331 in an electron transfer region 330.SELECTED DRAWING: Figure 1 【課題】高い発光効率、低い駆動電圧、及び長寿命などの効果を同時に発揮する有機電界発光素子を提供する。【解決手段】発光層３２０が複数のホスト及びドーパントを含み、上記複数のホストのうちの１つが、電子輸送領域３３０内の電子輸送補助層３３１の材料と同じ材料からなる。【選択図】図１