The organic emission layer 370 includes an emission layer, and may further include one or more of a hole-injection layer (HIL), a hole-transporting layer (HTL), an electron-transporting layer (ETL), and an electron-injection layer (EIL).
In the case where the organic emission layer 370 includes each of the hole-injection layer (HIL), the hole-transporting layer (HTL), the electron-transporting layer (ETL), and the electron-injection layer (EIL), the hole-injection layer (HIL) is positioned on the first electrode 191 which is an anode, and the hole-transporting layer, the emission layer, the electron-transporting layer, and the electron-injection layer may be sequentially laminated thereon.
The organic emission layer 370 may, for example, emit light of any one of the three primary colors of red, green and blue.
A second electrode 270 is formed on the pixel defining layer 195 and the organic emission layer 370.
The second electrode 270 is a cathode of the organic light emitting element. Accordingly, the first electrode 191, the organic emission layer 370, and the second electrode 270 together form the organic light emitting element LD.
The second electrode 270 is formed as a reflective layer, a transparent layer, or a transflective layer.