ORGANIC ELECTROLUMINESCENCE ELEMENT

摘要

PROBLEM TO BE SOLVED: To provide a stable electroluminescence element in which a leak current is not generated at the time of driving. SOLUTION: This element includes a positive electrode 2, and an organic light emitting layer, and it is provided with at least one organic layer 3, and a negative electrode 4. A surface 8 to be jointed at least with the organic layer 3 in the positive electrode 2 is formed in such a way that the maximum height Rmax of surface roughness defined by definition and display (B0601) for the surface roughness defined in JIS(Japanese Industrial Standard) is 50A.