1. A visual information processing device comprising: a semiconductor integrated circuit section including N.times.M neuronic circuit regions that form a matrix, said neuronic circuit regions each having an input electrode and an output electrode; a first photoelectric molecular film is disposed on said semiconductor integrated circuit section, wherein said first photoelectric molecular film has image input elements; 2N first transparent wiring lines are extended in a first direction on said first photoelectric molecular film such that each line extends above an output or an input electrode of M neuronic circuit regions; a second photoelectric molecular film is disposed on said first photoelectric molecular film; 2M second transparent wiring lines are extended in a second direction on said second photoelectric molecular film so as to extend above each of N neuronic circuit regions without extending above the output and input electrodes of N neuronic circuit regions; a transparent insulating layer is disposed on said second photoelectric molecular film and said second transparent wiring lines; a transparent electrode is disposed on said transparent insulating layer; a light-emitting molecular film is disposed on said first transparent electrode; 6.times.N.times.M electrodes are disposed on said light-emitting molecular film and at intersections of the output or input electrodes of said neuronic circuit regions and said first transparent wiring lines and at intersections of said first transparent wiring lines and said second transparent wiring lines; lead wires are connected to said 6.times.N.times.M electrodes; wherein light emitted from said light-emitting molecular film irradiates said intersections of the output or input electrodes of said neuronic circuit regions and said first transparent wiring lines, and said intersections of said first transparent wiring lines and said second transparent wiring lines, whereby coupling strength between said N.times.M neuronic circuit regions is controlled.