An organic light emitting device with a plurality of organic electroluminescent units stacked upon each other

An organic light emitting device with a plurality of organic electroluminescent units stacked upon each other

The invention relates to an organic light emitting device comprising an anode (2); a cathode (4); and a plurality of organic electroluminescent units (3.1, ..., 3.m; m ‰¥ 2) provided upon each other in a stack or an inverted stack between said anode (2) and said cathode (4) each of said organic elec...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: MURANO, SVEN, WELLMANN, PHILIPP, HE, GUFENG, WERNER, ANSGAR
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
BASIC ELECTRIC ELEMENTS
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
SEMICONDUCTOR DEVICES
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Beschreibung
Zusammenfassung:The invention relates to an organic light emitting device comprising an anode (2); a cathode (4); and a plurality of organic electroluminescent units (3.1, ..., 3.m; m ‰¥ 2) provided upon each other in a stack or an inverted stack between said anode (2) and said cathode (4) each of said organic electroluminescent units (3.1, ..., 3.m) comprising an electroluminescent zone; wherein at least some of the organic electroluminescent units (3.2, ..., 3.m) comprise a p-type doped hole transporting-layer and / or an n-type doped electron-transporting layer.