An OLED device having rear electrodes. The device comprises a substrate whereon a light emitting region is provided, an anode layer wherein an anode terminal is formed on one side of the top of the light emitting region, an organic layer laminated onto the light emitting region of the anode layer, a cathode layer wherein a cathode terminal is formed on one side of the top of the light emitting region, a protective film which seals the light emitting region, a rear electrode for anode of which one side is connected to the anode terminal and the other side is formed from the upper surface of the cathode layer whereon the protective film is provided, and a rear electrode for cathode of which one side is connected to the cathode terminal and the other side formed from the upper surface of the cathode layer whereon the protective film is provided.