Method of manufacturing organic electroluminescent device and organic electroluminescent device

Abstract

The invention provides a method for manufacturing an organic electroluminescent device, comprising a plurality of first electrodes on a substrate (20), a light-emitting functional layer arranged correspondingly to the formation positions of the first electrodes, and a layer covering the light-emitting function. A method for manufacturing an organic electroluminescent device for a second electrode of the layer, comprising: a buffer layer forming step of forming a buffer layer (210) while covering the second electrode; and forming a buffer layer (210) covering the second electrode. The process of the gas barrier layer ( ) 30, the buffer layer forming process includes: a coating process of coating a coating material having a monomer / oligomer material and a curing agent without using a solvent under a vacuum atmosphere, and making the coating material The thermal curing process of curing to form a buffer layer. According to the method of manufacturing an organic EL device of the present invention, sufficient luminescence characteristics or luminescence lifetime can be obtained and generation of non-luminescence regions can be suppressed. The present invention also provides an organic electroluminescent device.

Description

technical field [0001] The present invention relates to a method for manufacturing an organic electroluminescent device and an organic electroluminescent device. Background technique [0002] In recent years, an organic electroluminescent device (hereinafter, referred to as an organic EL device) having a light-emitting functional layer has been known. Such an organic EL device generally has an organic light-emitting layer between an inorganic anode and an inorganic cathode. Furthermore, in order to improve the hole injection property or electron injection property, a configuration in which an organic hole injection layer is arranged between an inorganic anode and an organic light-emitting layer, or a configuration in which an electron injection layer is arranged between an organic light-emitting layer and an inorganic cathode has been proposed. . [0003] Here, the electron injection layer, which has material properties that easily release electrons, easily reacts with moi...

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Problems solved by technology

[0011] However, the inventors of the present invention have confirmed that even if the technology described in the above-mentioned patent documents is adopted, even if a buffer layer is provided, sufficient light-emitting characteristics and light-emitting life cannot be obtained, and non-light-emitting regions and the like are generated.

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