Abstract

Compared to conventional light sources, LED backlight systems, consisted by LED backlight units (BLUs) and drivers, provide a wide range of performance benefits for Liquid crystal display (LCD) TVs. And the failure of this electronic system directly determines the life of LCD TVs. So the growing interests have been focused on the prognostic and health management (PHM) for this electronic system. As the first step of physics-of-failure (PoF) based PHM approach widely used in reliability assessment, failure modes, mechanisms, and effects analysis (FMMEA) was used in this paper to identify the potential failure mechanisms and associated failure sides in LED backlight systems.

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