Device Structure of OLED Module

The typical device structure of OLEDS is a laminated anode (transparent electrode), a hole injection layer, a hole transport layer, an emitting layer, an electron transport layer, an electron injection layer and a cathode (metal electrode) on the glass substrate. Each layer is stacked on the glass substrate using vacuum deposition technology. Because organic materials are affected by oxygen and moisture,lcd panel of  OLEDs are encapsulated by sealing materials such as metal or glass after being produced into layers on the glass substrate.