| 摘要 |
An organic EL device includes: an organic EL layer; and a hygroscopic layer that is disposed above and/or below the organic EL layer, and has a hygroscopic film, a first covering film, and a second covering film, the first covering film covering one of main surfaces of the hygroscopic film, the second covering film covering the other main surface of the hygroscopic film, wherein a relational expression A/B≧0.2 is satisfied, where A denotes hygroscopicity indicating mass of moisture, expressed in g/m2, that is absorbable by the hygroscopic film per unit of area, and B denotes the number of defects per unit of area, expressed in pieces/mm2, that is calculated based on the number of defects in each of the first covering film and the second covering film. |
