A numerical analysis of thermal management schemes of a LED array in TFT TV
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Date
2014
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Abstract
This paper aims to perform the numerical analysis and to investigate thermal characteristics of the LED backlight TFT TV according to thermal design parameters. Natural convective cooling of a LED array system used TFT TV is considered in this study. Numerical computations are carried out for horizontal and vertical orientations of the LED array. The effects of the PCB materials on the temperature distribution are discussed in detail. It is found that the maximum temperature of the LED packages significantly decreases by the horizontal orientation of the LED array in TFT based television. In addition, ceramic based PCB materials having high thermal conductivity such as A1N present better thermal performance than that of metal based PCB materials. © 2014 IEEE.
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Keywords
Electronics packaging , Light emitting diodes , Numerical analysis , Organic pollutants , Polychlorinated biphenyls , Printed circuit boards , Temperature control , Convective cooling , High thermal conductivity , LED backlight , Maximum temperature , Numerical computations , Thermal characteristics , Thermal designs , Thermal Performance , Thermal conductivity