[OLEDp1-2] High Light Extraction Technology for Flexible Top Emission OLED Applications
Top Emission OLED, Low Refractive Index layer, Evanescent waves, Thin Film Encapsulation
In this paper, we report high light extraction from the top emission OLED(TEOLED) device structure by inserting a low refractive index (RI) layer at the interface between the capping layer and thin film encapsulation layer. The current efficiency of fabricated blue TEOLED device using this low RI layer is improved by about 23% and the blue index value is enhanced by about 26%.