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In this paper, we review the emission characteristics from organic light-emitting diodes (OLEDs) and organic molecular thin films with planar and corrugated structures. In a planar thin film structure, light emission from OLEDs was strongly influenced by the interference effect. With suitable design of microcavity structure and layer thicknesses adjustment,(More)
A microlens array formed by thermal reflow is attached to an OLED (organic light emitting diode) device and the light extraction efficiency can be enhanced. The efficiency improvement is simulated by a ray-tracing algorithm and is greatly influenced by adjusting the area ratio and the height ratio
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