LIGHT-EMITTING DEVICE AND ELECTRONIC APPARATUS INCLUDING THE SAME

LIGHT-EMITTING DEVICE AND ELECTRONIC APPARATUS INCLUDING THE SAME

A tandem light-emitting device including a first electrode, a second electrode facing the first electrode, m light-emitting units stacked between the first electrode and the second electrode, the m light-emitting units each including an emission layer, and m−1 charge generation layers between two ad...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Lee, Jongwon, Kim, Seungcheol, Lee, Changmin, Park, Heungsu, Lee, Hyunshik
Format: Patent
Sprache:eng
Schlagworte:
ELECTRICITY
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Beschreibung
Zusammenfassung:A tandem light-emitting device including a first electrode, a second electrode facing the first electrode, m light-emitting units stacked between the first electrode and the second electrode, the m light-emitting units each including an emission layer, and m−1 charge generation layers between two adjacent light-emitting units of the m light-emitting units. M is an integer of 5 or more. The m light-emitting units include first to fifth light-emitting units, in order of proximity to the first electrode. The m−1 charge generation layers include first to fourth charge generation layers, in order of proximity to the first electrode. At least one of the first to fifth light-emitting units emits blue light. At least one of the first to fifth light-emitting units emits green light. The formula 3≤D/(2*λb)≤ 4 is satisfied.