Publication | Closed Access
Enhancing Light Extraction in Top‐Emitting Organic Light‐Emitting Devices Using Molded Transparent Polymer Microlens Arrays
106
Citations
34
References
2012
Year
Optical MaterialsEngineeringOrganic ElectronicsMicrolens ArrayOptoelectronic DevicesChemical EngineeringOptical PropertiesLight-emitting DiodesAdvanced Display TechnologyMaterials SciencePhotonicsOrganic SemiconductorNew Lighting TechnologyOrganic Light-emitting DevicesOrganic MaterialsWhite OledSolid-state LightingLight ExtractionApplied PhysicsTransparent Top ElectrodeTechnologyOptoelectronicsOptical Devices
The light extraction efficiency in organic light-emitting devices (OLEDs) is enhanced by up to 2.6 times when a close-packed, hemispherical transparent polymer microlens array (MLA) is molded on the light-emitting surface of a top-emitting device. The microlens array helps to extract the waveguided optical emission in the organic layers and the transparent top electrode, and can be manufactured in large area with low cost.
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