| 摘要 |
PROBLEM TO BE SOLVED: To provide an organic EL element, requiring no special device such as a high-temperature sintering furnace, versatile, capable of reducing the number of manufacturing steps, having no quality problem such as crack generation, excellent in light extraction efficiency.SOLUTION: A transparent substrate 4, on which a positive electrode 3, a light-emitting layer 2, a negative electrode 1 are subsequently laminated, for an EL element, is provided by a multilayer extrusion method or a thermal lamination method on a surface or inside with a total reflection preventing surface 11a, on one surface, having a light extraction function, and on the other surface a smooth surface for forming an EL surface.SELECTED DRAWING: Figure 1 |
