| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an organic light-emitting element that exhibits high light emission efficiency, is highly durable, is easy to manufacture and can be formed by a relatively inexpensive coating method, and an ink composition or ink by using a novel fluorene compound. <P>SOLUTION: The fluorene compound contains at least one monovalent fluorene group represented by general formula [I] (wherein R<SB>1</SB>-R<SB>3</SB>are each an alkyl group, an aralkyl group, an aryl group or the like). <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
