Manufacturing method for organic EL lighting device

1. 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.

2. The manufacturing method as set forth in claim 1 ,

wherein said application step increases a forward bias voltage from 0V to a voltage immediately before and after an element emits light, or to a voltage at which the polarity of the reverse bias voltage is inverted in a sequential order.

3. The manufacturing method as set forth in claim 2 ,

wherein said application step increases the time interval during which said reverse bias voltage is applied chronologically.