Organic electroluminescence device
AssigneeIdemitsu Kosan Co., Ltd.
InventorsHitoshi Kuma, Hiroshi Yamamoto, Chishio Hosokawa
Life of this patent
Estimating the term…
Abstract
An organic electroluminescence device (1) including: an anode (20) and a cathode (50), at least two organic emitting layers (30), (32) and (34) interposed between the anode and the cathode, and at least one intermediate connection layer (40) and (42) being provided between the organic emitting layers (30), (32) and (34), the intermediate connection layer (40) and (42) comprising an acceptor layer, a donor layer and an electron-transporting material layer being stacked in this order from the cathode (50), the electron-transporting material layer containing a non-complex compound with a nitrogen-containing heterocyclic structure.
Claims20
An organic electroluminescence device comprising:
- an anode and a cathode,
- at least two organic emitting layers interposed between the anode and the cathode, and
- at least one intermediate connection layer provided between the organic emitting layers,
- the intermediate connection layer comprising an acceptor layer, a donor layer and an electron-transporting material layer being stacked in this order from the cathode,
- the electron-transporting material layer containing a non-complex compound with a nitrogen-containing heterocyclic structure,
- wherein:
- the acceptor layer comprises a quinoide derivative as an acceptor, and
- the donor layer comprises as a donor at least one selected from the group consisting of a donor metal, a donor metal compound, and a donor metal complex.
Dependencies are inferred from the claim text.