ORGANIC ELECTROLUMINESCENT ELEMENT, AND ITS MANUFACTURING METHOD

摘要

PROBLEM TO BE SOLVED: To provide an organic electroluminescent element stably operating with a uniform luminescent characteristic, and excelling in a life characteristic. SOLUTION: This organic electroluminescent element is provided with at least a set of electrodes, and a plurality of functional layers formed between the electrodes; each functional layer is provided with a layer formed of at least one kind of organic semiconductor and having a luminescent function, and a pixel restriction layer between the electrode and the layer having the luminescent function. The organic electroluminescent layer is structured to restrict the area of a luminescent region, and the average surface roughness Ra of the pixel restriction layer is set not greater than 5.0 nm. COPYRIGHT: (C)2008,JPO&INPIT