We made study of the comparative characteristic of see-through organic light emitting diode by using two kinds of a typical transparent conducting oxide (In₂O₃-SnO₂, (ITO), In₂O₃-ZnO (IZO)). The cathode used for transparent conducting oxide was prepared by rf magnetron sputtering at room temperature. We investigated the transmission spectrum of transparent conducting oxide (TCO's)-coated glass substrate and see-through organic light emitting diode, light-emission and current injection properties. With the aim of improvement in the electrical characteristic, we study the effects of using alkali metal (Cs) dope layer.