ORGANIC ELECTROLUMINESCENT ELEMENT AND ORGANIC ELECTROLUMINESCENT LIGHTING DEVICE

摘要

The present invention provides an organic EL element which is suppressed in electromigration or stress migration, has excellent stability and reliability, and is reduced in burden on the environment. The organic EL element comprises a light-transmitting electrode having a reduced resistivity and emits a uniform amount of light from all over the surface. The present invention also provides an organic EL lighting device which uses the organic EL element. Specifically provided is an organic electroluminescent element which comprises: a light-transmitting electrode layer that is provided on a light-transmitting substrate; an electrode layer that forms a pair with the light-transmitting electrode layer; an organic layer that is held between the electrode layers and contains an organic electroluminescent substance; a light-blocking auxiliary electrode that is formed on the light-transmitting electrode layer so as to be in contact with a part of the light-transmitting electrode layer; and an insulating coating film that covers the auxiliary electrode. The auxiliary electrode has a low resistivity layer which is formed from a low resistivity material that has a low specific resistance in comparison to the light-transmitting electrode layer and a coating layer which is provided on the low resistivity layer and formed from a high melting point material that has a higher melting point than the low resistivity material.