Patent ID: 8963415
Filing Date: 2015-02-24
Classification: H01L

Abstract:
1. An organic EL element, comprising: a transparent electrode; a reflective electrode opposite the transparent electrode; and a light-emitting layer between the transparent electrode and the reflective electrode, the light-emitting layer having a film thickness of 20 nm to 200 nm, wherein the reflective electrode is a layered film of: a film thickness d of the Ni layer satisfies: 0 nm <d <5 nm, an average roughness Ra of a surface of the layered film facing the light-emitting layer satisfies: 0.6 nm ≦Ra <2.0 nm, a maximum height difference Rmax of the surface of the layered film satisfies: 5 nm ≦Rmax <20 nm, and the external side surfaces of the metal film do not face the light-emitting layer.