Patent ID: 8518719

Claim:
A method of manufacturing an organic electroluminescence (EL) device, comprising: preparing an organic EL device in which a lower electrode layer, an organic layer including a luminescent layer, and an upper electrode layer are stacked in order and in which at least one of the lower electrode layer and the upper electrode layer is formed of a transparent material, the organic EL device including a defective portion; irradiating the organic EL device including the defective portion with a laser beam from a direction of the at least one of the upper and lower electrode layers that is formed of the transparent material; measuring an intensity of radiated light that is light radiated from the organic EL device after the laser beam is absorbed through multiphoton absorption; determining a focal position of the laser beam in a stacking direction such that the intensity of the radiated light is minimal, after changing the focal position of the laser beam in the stacking direction for performing the irradiating and the measuring; and emitting the laser beam onto the organic EL device at the determined focal position in the stacking direction so as to solve a defect caused by the defective portion.