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LEDs in High-Definition Television

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Innovations in materials and packaging have increased brightness to the point where LEDs are now used in television displays.

D.J. Segler, Texas Instruments

Recent improvements in light output have enabled new applications for LEDs such as automotive lighting, traffic signals and, more recently, television displays. Improvements in manufacturing the epitaxial material and packaging have enhanced thermal conductivity and increased the overall light extraction efficiency of LEDs (Figure 1). Quantum efficiency gains and unique photon-extraction techniques also have helped improve brightness. Figure 1. A basic example of the high-brightness LED structure shows a thermally conductive substrate as the basis for this type of LED. Significant...Read full article

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    Published: October 2007
    Consumerepitaxial materialFeaturesindustriallight outputSensors & DetectorsLEDs

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