Thin-film encapsulation of thin-cathode organic light-emitting devices

Abstract

We have developed a novel thin-film encapsulation method for thin-cathode organic light-emitting devices (OLEDs) by introducing organic (not polymer)/inorganic multiple thin films to protect devices, which is shown to slow down the permeation rate of moisture and oxygen. From the stability test of devices, the projected lifetime of thin-cathode OLEDs with thin-film encapsulation was similar to that of thin-cathode OLEDs with glass lid encapsulation.