abstract |
Disclosed is a cyclized aryl amine derivative and an organic light emitting diode (OLED) using the same, and more particularly a cyclized aryl amine derivative represented by Formula 1, which is used as a hole transport material of an OLED having a multilayered structure, and thus provides an OLED of high thermal stability, improved lifetime, and high luminous brightness/efficiency, and an OLED using the same. |