Method of manufacturing organic optoelectronic device, and organic optoelectronic device and display device

A method of manufacturing an organic light emitting device, the method comprising:

• providing an anode and a cathode, and forming an organic layer between the anode and the cathode, wherein the forming the organic layer includes:
• (a) heat-treating a first organic compound and a second organic compound together, and solidifying the heat-treated first and second organic compounds through cooling to obtain a solidified organic material, and
• (b) dry coating the solidified organic material to form the organic layer, the dry coating including one or more of evaporation, sputtering, plasma plating, and ion plating,
• wherein a difference between evaporation temperatures of the first organic compound and the second organic compound is less than or equal to 20° C. as determined at a same pressure at less than or equal to 10−3 torr, wherein the evaporation temperatures of the respective first and second organic compounds are determined as a temperature at which the respective one of the first and second organic compounds deposits on a substrate at a rate of rate of about 0.5 to about 2 Å/sec under a vacuum of less than or equal to about 10−3 Torr.

A method of manufacturing an organic light emitting device, the method comprising:

• providing an anode and a cathode, and forming an organic layer between the anode and the cathode, wherein the forming the organic layer includes:
• (a) heat-treating a first organic compound and a second organic compound together, and solidifying the heat-treated first and second organic compounds through cooling to obtain a solidified organic material, and
• (b) dry coating the solidified organic material to form the organic layer, the dry coating including one or more of evaporation, sputtering, plasma plating, and ion plating,
• wherein:
• the first organic compound is selected from Group A, and
• the second organic compound is selected from Group B,