ORGANIC LIGHT EMITTING DEVICE

摘要

Provided is an organic light emitting device (OLED) capable of stably securing low- voltage performance by using Ph<SUB>3</SUB>PO for an organic material layer serving as an electron-transporting layer or a hole-blocking layer in the OLED. The OLED includes an anode, a cathode, and a plurality of organic thin films disposed between the anode and the cathode. One or both of the organic thin films serving as a hole-blocking layer and an electron-transporting layer are formed Of Ph<SUB>3</SUB>PO.