| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a composition using a polymeric compound useful for fabrication of a blue phosphorescent light emission element excellent in light emission efficiency. <P>SOLUTION: The composition includes structural units selected from structural units derived from a structural unit represented by formula (1)-1, a structural unit represented by formula (1)-2, a structural unit represented by formula (2)-1, a structural unit represented by formula (2)-2 and a structural unit derived from a phosphorescent light emission compound whose light emission spectrum peak is <480 nm, and includes, at least, a polymeric compound containing both a structural unit represented by formula (1)-1 and a structural unit represented by formula (1)-2, and a phosphorescent light emission compound whose light emission spectrum peak is <480 nm. <P>COPYRIGHT: (C)2012,JPO&INPIT |
