| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an organic electroluminescent element material that shows high luminous efficiency in blue to bluish green color, and has a long service life and a low drive voltage. <P>SOLUTION: In the organic electroluminescent element including at least one luminous layer sandwiched by positive and negative electrodes, the luminous layer has a ligand comprising six-membered ring or five-membered ring of aromatic groups replaced by an imidazole ring or a pyrazole ring, and includes at least one complex compound having group 8 to group 10 transition metals. <P>COPYRIGHT: (C)2010,JPO&INPIT |
