1. 2D_OLED_Build a structure (material region setting) 2. 2D_OLED_Set up the material parameters 3. 2D_OLED_Mesh setting 4. 2D_OLED_Additional functions 5. 2D_OLED_Bias and workfunction setting 6. 2D_OLED_Input editer 7. 2D_OLED_Run the simulation 8. 2D_OLED_View the results