INVERSE-STRUCTURE ORGANIC LIGHT EMITTING DIODE AND MANUFACTURING METHOD THEREFOR

摘要

An organic light emitting diode comprises: a first electrode; an electronic injection layer disposed on the first electrode and containing a metallic oxide; an electronic injection interface layer disposed on the electronic injection layer and including a polymer containing a nitrogen atom; a light emitting layer disposed on the electronic injection interface layer; and a second electrode disposed on the light emitting layer. Accordingly, the electronic injection interface layer is formed between the electronic injection layer and the light emitting layer, so that an element efficiency can be improved, and as the thickness of the electronic injection interface layer becomes thicker, the work function of the electronic injection layer below the electronic injection interface layer increases, and an efficiency of injection of an electron to the light emitting layer is lowered.

主权项

1. An inverse-structure organic light emitting diode comprising:
a first electrode; an electron injection layer which includes a metal oxide and is disposed on the first electrode; a electron injection interface layer, which includes a polymer including a nitrogen atom, on the electron injection layer; a light emitting layer disposed on the electron injection interface layer; and a second electrode disposed on the light emitting layer.