COMPOSITION FOR ORGANIC ELECTROLUMINESCENT ELEMENT, ORGANIC ELECTROLUMINESCENT ELEMENT, DISPLAY AND LIGHTING

摘要

The invention relates to a composition for organic electroluminescent element, which comprises: a solvent; and a compound group α for organic electroluminescent element that is constituted of at least two kinds of compounds which each have a molecular weight of 3,000 or less and have a structure comprising a plurality of aromatic ring groups linked to each other, wherein the compound group α comprises: a compound α1; and another compound αn satisfying a specific condition.

主权项

1. A composition for organic electroluminescent element, which comprises a compound group α for organic electroluminescent element and a solvent, wherein
the compound group α is constituted of at least two kinds of compounds which each have a molecular weight of 3,000 or less and have a structure comprising a plurality of aromatic ring groups linked to each other, the compound group α comprises a compound α1 which is the smallest in the number of aromatic ring groups and another compound αn (n is any integer of 2 or larger), and when a structure which is the largest in the number of the aromatic ring groups, of partial structures that are common between the compound α1 and the compound αn, is taken as a basic framework, 60% or more of the structure of the compound α1 is identical with the basic framework, and the compounds which constitute the compound group α each is mixed in an amount of 1% by weight or larger.