| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an organic electroluminescent element having a long element service life. <P>SOLUTION: The organic electroluminescent element comprises one or a plurality of organic compound layers, at least one of which contains one or more kinds of charge-transporting polyesters represented by the following general formula (I). In the general formula (I), A<SP POS="POST">1</SP>represents a divalent linking group of an aromatic amine having a group represented by the following formula (III) as a partial structure. <P>COPYRIGHT: (C)2012,JPO&INPIT |
