The present invention aims at developing an organic EL device having a structure for power supply to a new organic EL element. The device is formed of unit organic EL elements planarly distributed on a substrate having a planar expanse and includes organic EL element columns and organic EL element rows. The organic EL element columns and the organic EL element rows each have a conductive path in which electric current passes in its longitudinal direction. The organic EL element columns and the organic EL element rows have different longitudinal directions so that their conductive paths cross with each other at a part where the organic EL element columns and the organic EL element rows cross with each other.