Patent ID: 7307297

Claim:
An organic photodiode comprising: a pair of electrodes that is disposed oppositely to each other, a substrate that forms one electrode of the pair of electrodes, a plurality of light receiving parts as layers of light absorbing composition that is disposed in a gap of the pair of electrodes, and partition walls that is formed in a gap of the pair of electrodes for insulating between the pair of electrodes and insulating between the light receiving part and the other light receiving part, wherein the partition walls are formed at a position corresponding to one electrode on an insulating layer covering the one electrode and its surrounding, by applying an ink solution containing a solvent for dissolving the insulating layer and the light absorbing composition, evaporating the solvent in the ink solution after dissolving the insulating layer, and forming a plurality of dissolved holes as spaces contacting with this one electrode, and the plurality of light receiving parts are formed by filling the plurality of dissolved holes with the light absorbing composition in the ink solution.