| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a high brightness light emitting element excellent in durability and reliability for giving uniform flat plane light emission without irregularity while the high brightness is given for along time. <P>SOLUTION: A compound has a high melting point and a high glass transition temperature. The thin film of the compound formed by the method of vapor deposition or the like is transparent, and having a stable amorphous state at room temperature or a temperature higher than room temperature while having a smooth good film property. The thin film is formed by itself without using binders. An organic EL element has an organic compound above while the most preferably as a hole injection transporting layer, thus a uniform flat plane light emission is possible without surface irregularity with a stable long time high brightness, durability and reliability. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
