| 摘要 |
PROBLEM TO BE SOLVED: To improve the life of emission in the organic EL element. SOLUTION: In a light-emitting body in which a transparent electrode, a luminous material layer (organic EL) and an upper electrode layer are formed in order on a substrate, or a lower electrode 230, a light emitting material layer (organic EL) 204 and a transparent electrode layer 197 are formed in order on a substrate 1, the transparent electrode layer 197 is made of ITO having a composition of In2-xSnxO3-y (provided that, y is 0.05 or more and 0.2 or less). If necessary, a moisture absorption reinforcing layer is provided adjacent to the transparent electrode. |
