发明授权
US06777871B2 Organic electroluminescent devices with enhanced light extraction 有权
具有增强光提取的有机电致发光器件

Organic electroluminescent devices with enhanced light extraction
摘要:
An organic light emitting diode containing a first electrode, a second electrode, at least one organic light emitting layer, and an output coupler which reduces a Fresnel loss is provided. The index of refraction of the output coupler is matched to that of the adjacent layer of the device. The output coupler may be a dimpled transparent material or a composite layer containing light scattering particles to also reduce a critical angle loss.
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