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Thermal characteristics of edge-illumination type LED backlight system in a thin flat panel display

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4 Author(s)
Sung Ki Kim ; Visual Display Div., Samsung Electron., Suwon, South Korea ; Joon Kang ; Woo Young Kan ; Sang Hak Kim

Light Emitting Diode (LED) is one of promising source in lighting industry and applied as light source of a backlight system in flat panel display with advantages of performance and environmental-friendly feature. The inherent characteristic of LED causes high heat dissipation from the device and careful thermal management is required. Therefore, the thermal management in LED backlight system is crucial for the display development. However, narrow volume of flat panel display cause non-uniform temperature distribution over the system and the dependency of LED operating temperature necessitate the carful thermal design for light source. The objective of present study aimed to investigate the effect of design parameters in edge illuminating type backlight system. It is presented thermal characteristics of LED light source in edge-illumination type backlight system and evaluated performance of the thermal management system to ensure the reliability of the system.

Published in:

Thermal and Thermomechanical Phenomena in Electronic Systems (ITherm), 2010 12th IEEE Intersociety Conference on

Date of Conference:

2-5 June 2010