Patent ID: 8278126

Claim:
A method for manufacturing an organic electroluminescence device composed of a supporting substrate and an organic electroluminescence element mounted thereon, the organic electroluminescence element being cut off from the outside by being enclosed between the supporting substrate and a sealing layer including at least a first inorganic film and a second inorganic film, the method comprising: forming the first inorganic film by an ion beam sputtering method to cover an exposed surface of the organic electroluminescence element mounted on the supporting substrate; and forming the second inorganic film by a film formation method which is different from the ion beam sputtering method used to form the first inorganic film, and which shows higher film formation rate than the ion beam sputtering method to cover the first inorganic film after the formation of the first inorganic film, wherein the first inorganic film has higher barrier properties than the second inorganic film.