Manufacturing method for organic el lighting device

A manufacturing method for an organic EL lighting device using a plurality of organic EL elements, comprising:

• an application step that connect anodes of said plurality of organic EL elements together and alternately applies a forward bias voltage relative to the potential of said anodes and a reverse bias voltage to cathodes of said plurality of organic EL elements at a predetermined period;
• and
• an increase step that increases the ratio of the time for which said reverse bias voltage is applied and the time for which said forward bias voltage is applied;
• wherein:
• nodes of the organic EL elements are transparent electrodes whose specific resistance is higher than a specific resistance of the cathodes;
• the cathodes of the organic EL elements are metal materials having a specific resistance lower than a specific resistance of the anodes;
• a plurality of the organic EL elements are aged and repaired at the same time;
• the anodes of the organic EL elements are connected to a common connection structure that acts as a common anode;
• a voltage that is higher than a potential of the common anode is applied to the cathodes of half of the organic EL elements;
• a voltage that is lower than the potential of a common anode is applied to the cathodes of the other half of the organic EL elements;
• and
• the organic EL elements electrically carry out self-repair.