| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a new stable condensed cyclic compound hardly form a molecular association, and an organic light-emitting element having a high light-emitting efficiency and a low drive voltage. <P>SOLUTION: The specific condensed polycyclic compounds, eg. the condensed polycyclic compounds expressed by formulas 2 to 4 [wherein, R1, R2 are each H, ≥1 to ≤4C alkyl, aryl or heterocyclic group; R3, R4 are each ≥1 to ≤4C alkyl; each of the above aryl and heterocyclic groups may have at least one of alkyl, aralkyl, aryl, heterocyclic, amino and alkoxy groups as a substituent; and also Ar is aryl or heterocyclic group] are provided. <P>COPYRIGHT: (C)2012,JPO&INPIT |
