| 摘要 |
PROBLEM TO BE SOLVED: To provide an organic electroluminescent (EL) element having high external extraction quantum efficiency, a long light-emitting lifetime, a low drive voltage, and a superior high-temperature storing property; and to provide an organic EL element material therefor, and a display and an illumination apparatus using the organic EL element. SOLUTION: The organic EL element material contains a high molecular compound expressed by formula (1). In formula (1), X<SB>1</SB>to X<SB>7</SB>each represents an N atom or CR group, and R represents a hydrogen atom or substituent. Here, at least one of X<SB>1</SB>to X<SB>7</SB>is an N atom. When X<SB>1</SB>and X<SB>2</SB>, X<SB>2</SB>and X<SB>3</SB>, X<SB>3</SB>and X<SB>4</SB>, or X<SB>6</SB>and X<SB>7</SB>are CR groups at the same time, R's may be bonded to each other to form a 5-membered or 6-membered aromatic ring. Further, (n) is an average polymerization degree and satisfies 3≤n≤1,000. COPYRIGHT: (C)2010,JPO&INPIT |
