| 摘要 |
<P>PROBLEM TO BE SOLVED: To combine the uniformity of a composition solution for uniform deposition, and the drying resistance of a composition for stable coating in an organic electroluminescent composition containing a hole injection/transport material and a solvent. <P>SOLUTION: The composition for an organic electroluminescent element contains, as a hole injection/transport material, a polymer compound having 3000-1000000 weight-average molecular weight and including at least a triallyl amino group in the repeating unit and contains, as a solvent, (a) a compound (solvent (a)) having a boiling-point of 240°C or higher, an alkyl radical and one aryl group, and (b) a compound (solvent (b)) having a boiling-point of 240°C or higher and more than one aryl group. In the sum total of the solvent (a) and solvent (b) contained in the composition for organic electroluminescent element, 2.7 is exceeded by the ratio of the total number of carbon atoms composing an aromatic ring contained in the solvent (a) and solvent (b) to the total number of carbon atoms composing the aliphatic hydrocarbon group contained in the solvent (a) and solvent (b). <P>COPYRIGHT: (C)2013,JPO&INPIT |
