COMPOSITION FOR FORMING HOLE INJECTION/TRANSPORT LAYER, METHOD OF MANUFACTURING COMPOSITION FOR FORMING HOLE INJECTION/TRANSPORT LAYER, ORGANIC ELECTROLUMINESCENT ELEMENT,ORGANIC EL DISPLAY AND ORGANIC EL ILLUMINATION

摘要

PROBLEM TO BE SOLVED: To extend the life of an organic electroluminescent element having hole injection/transport layers formed using a compound with a polymerizable group.;SOLUTION: A composition for forming hole injection/transport layers of the organic electroluminescent element contains the compound with a polymerizable group and an organic solvent and is preserved for 22 hours or longer after being prepared. During the preservation, the compound with the polymerizable group and the organic solvent in the composition are homogenized on a very micro scale. When hole injection/transport layers are formed in a state where the organic solvent and the compound with the polymerizable group are homogeneously dissolved or dispersed, the film quality is good, and as a result, a good influence is exerted on the life of the element. Thus, the long life can be achieved by simple operation of preservation.;COPYRIGHT: (C)2010,JPO&INPIT