Title :
A numerical analysis of thermal management schemes of a LED array in TFT TV
Author :
Mermer, Omer ; Nil, Metin ; Akgul, M. Bahattin
Author_Institution :
Dept. of Electr. & Electron. Eng., Ege Univ., Izmir, Turkey
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.
Keywords :
LED displays; ceramic packaging; cooling; natural convection; numerical analysis; printed circuits; television displays; temperature distribution; thermal conductivity; thermal engineering; thermal management (packaging); thin film transistors; LED backlight TFT TV array system; LED packaging; ceramic based PCB material; natural convective cooling; numerical analysis; printed circuit board; television; temperature distribution; thermal conductivity; thermal management scheme; Arrays; Electronic packaging thermal management; Light emitting diodes; Materials; Temperature distribution; Thermal analysis; Thin film transistors; LED; TFT TV; Thermal management;
Conference_Titel :
Design and Technology in Electronic Packaging (SIITME), 2014 IEEE 20th International Symposium for
Conference_Location :
Bucharest
DOI :
10.1109/SIITME.2014.6967011
