A transparent substrate on which a transparent electrode layer is formed is prepared. An insulating layer having a first pattern for exposing a light-emitting region and a first terminal portion and covering a second terminal portion is formed on the transparent electrode layer. Then, an organic layer is formed on the entire surface of the transparent electrode layer and the insulating layer. A reflection electrode layer having a second pattern for covering the light-emitting region and the second terminal portion and exposing the first terminal portion is formed on the organic layer. After that, an exposed portion of the organic layer is removed by dry etching to expose a region of the first electrode layer in the first terminal portion. Finally, a sealing film having a third pattern for covering the light-emitting region and exposing the first terminal portion and the second terminal portion is formed on the resultant transparent substrate, thereby exposing the first terminal portion and the second terminal portion.