METHOD FOR MANUFACTURING ORGANIC ELECTROLUMINESCENCE ELEMENT, AND ORGANIC ELECTROLUMINESCENCE ELEMENT

摘要

Provided is a method for manufacturing an organic electroluminescence element wherein a foreign material adhered on a surface of a substrate electrode is effectively removed, a failure substrate is eliminated at an earlier stage and leak current due to the foreign material is prevented. In a wet cleaning step in the manufacture of the organic electroluminescence element, the number of foreign material particles mixed in a cleaning solvent is controlled and monitored to improve cleaning performance, cleanliness is judged by inspecting and monitoring the number of foreign material particles in the cleaning solvent, and based on the results, cleaning failure products are eliminated at the earlier stage.