ORGANIC LIGHT EMITTING DISPLAY DEVICE

摘要

PURPOSE: An organic light emitting diode is provided to improve electron injection efficiency by forming a metal layer under a second electrode. CONSTITUTION: A first electrode(110) and a first common layer(120) are successively formed on a substrate(100). A first light emitting layer(130) is formed on the first common layer. An electron blocking layer(140) is formed on the first light emitting layer. A second light emitting layer(150) is formed on the electron blocking layer. A second common layer(160) is formed on the second light emitting layer. A metal layer(170) is formed on the second common layer. A second electrode(180) is formed on the metal layer. A first light emitting layer is a red light emitting layer. A second light emitting layer is formed by stacking a blue light emitting layer and a green light emitting layer.