Patent ID: 8202756

Claim:
A method of manufacturing an organic EL device, comprising: providing a structure including a substrate and an electrode positioned above the substrate; and forming an organic layer including a mixture of two or more organic materials above the electrode in ways of heating an evaporation material in a heating chamber including a mixture of the two or more organic materials to an evaporation temperature and vaporizing the evaporation material toward the substrate, wherein the two or more organic materials have respective sublimation points, the lowest value of the sublimation points being a first sublimation point SP 1 , the highest value of the sublimation points being a second sublimation point SP 2 , and the evaporation temperature is one of first to third temperatures, the first temperature being a temperature higher than the second sublimation temperature SP 2 by 50° C. or more, the second temperature being equal to or higher than a sum of the first sublimation temperature SP 1 and a product of 150/370 and the first sublimation temperature SP 1 , and the third temperature being equal to or higher than a sum of the second sublimation temperature SP 2 and a product of 50/370 and the second sublimation temperature SP 2 .