A manufacturing method of an
organic semiconductor device wherein an
organic semiconductor layer being, a
structural component of an
organic semiconductor device is formed continuously with uniform performance over a sufficiently large area. The organic
semiconductor structure comprises an organic
semiconductor layer formed from an organic
semiconductor material having a
liquid crystal molecule in at least one part, the
liquid crystalline organic semiconductor material exhibits a supercooled state during a
phase transition process, the phase of the material is transferred from the supercooled state to the phase having periodic regularity at a location of a center of gravity in between the
liquid crystal molecules; in a temperature raising process from the phase having no periodic regularity a center of gravity in between the
liquid crystal molecules, the
liquid crystalline organic semiconductor material exhibiting the phase having no periodic regularity with of a center of gravity in between the liquid
crystal molecules is supercooled, to a temperature lower than a temperature of which the phase is transferred to the phase having periodic regularity at a location with a center of gravity in between the liquid
crystal molecules, and after the
phase transition to the phase having periodic regularity at a location of a center of gravity in between the liquid
crystal molecules is started, the material is turned into a state that the converted to a phase having periodic regularity at a location of with a center of gravity between the liquid crystal molecules being thermodynamically
stable phase and the phase having no periodic regularity at a location of a center of gravity in between the liquid crystal molecules is a thermodynamically metastable phase, and the organic semiconductor layer being formed by maintaining said state until the
liquid crystalline organic semiconductor material is turned into a converted to a state exhibiting the phase having periodic regularity at a location of a center of gravity in between the liquid crystal molecules.