Enhancing the Out-Coupling Efficiency of Organic Light-Emitting Diodes Using Two-Dimensional Periodic Nanostructures

<table>Kinds of light out-coupling losses in ordinary OLEDs.</table>

Advances in Materials Science and Engineering

Figure 1: Enhancing the Out-Coupling Efficiency of Organic Light-Emitting Diodes Using Two-Dimensional Periodic Nanostructures 