| 摘要 |
PROBLEM TO BE SOLVED: To provide a substance having large excitation energy, especially a substance having large triplet excitation energy, a substance having a bipolar property and a light-emitting element having high luminous efficiency and low driving voltage. SOLUTION: The oxadiazole derivative expressed by general formula (G1) is used in a light-emitting element. COPYRIGHT: (C)2007,JPO&INPIT |
