Organic electroluminescent element, organic electroluminescent unit, and electronic apparatus
AssigneeJoled Inc.
InventorKosuke Mishima
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Abstract
An organic electroluminescent element includes, in order, a first electrode, an organic light-emitting layer, a buffer layer, a metal thin film, an organic electron transport layer, and a second electrode. The buffer layer includes an electrically-conductive organic material. The metal thin film includes a metal or a metal alloy. The organic electron transport layer is doped with a metal. The metal in the metal thin film is the same as the metal doped in the organic electron transport layer. The metal alloy in the metal thin film includes a metal that is the same as the metal doped in the organic electron transport layer.
Claims11
An organic electroluminescent element comprising, in order:
- a first electrode;
- an organic light-emitting layer;
- a buffer layer that includes an electrically-conductive organic material, wherein the buffer layer is in direct contact with the organic-light emitting layer;
- a metal thin film that includes a metal or a metal alloy;
- an organic electron transport layer doped with a metal;
- a second electrode;
- and
- the metal in the metal thin film being same as the metal doped in the organic electron transport layer, the metal alloy in the metal thin film including a metal that is same as the metal doped in the organic electron transport layer.
Dependencies are inferred from the claim text.