Patent ID: 9013049
Filing Date: 2015-04-21
Classification: C08G,C08K,C08L,H01L

Abstract:
1. A method for manufacturing an organic electroluminescent (EL) device comprising a substrate, an organic EL element, a cured material layer formed of a cured material of a surface sealant and a passivation film laminated in the order presented, comprising: a first step of forming the organic EL element on a substrate; a second step of covering the organic EL element with the surface sealant; a third step of sealing a surface of the organic EL element with the cured material of the surface sealant; and a fourth step of forming the passivation film on the cured material sealing the surface of the organic EL element, by plasma CVD or sputtering, wherein the surface sealant comprises: an epoxy resin (a) having two or more epoxy groups in a molecule thereof; and a metal complex (b1) which includes: at least one metal ion selected from the group consisting of Zn, Bi, Ca, Al, Cd, La and Zr; a tertiary amine capable of forming a complex with the metal ion and having no N—H bond; and an anionic ligand, wherein the anionic ligand has two or more atoms selected from the group consisting of O, S and P which are capable of binding to the metal ion, and the anionic ligand is capable of coordinating with the metal ion to form a 3- to 7-membered ring and has a molecular weight of 17 to 200, wherein the surface sealant has a viscosity of 10 to 10000 mPa·s, as measured by E-type viscometer at 25° C. and 1.0 rpm, and wherein a cured material layer of the surface sealant after a plasma treatment has a haze value of 30% or less, the plasma treatment being carried out at an oxygen flow rate of 20 mL/minute and an RF power of 500 W for 20 minutes.