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Backlight design solutions for large LCD TV screens

Posted: 13 Oct 2008     Print Version  Bookmark and Share

Keywords:LCD display  backlight systems  backlight inverters 

Larger LCD display backlight systems typically require 20 to 40 lamps, either cold cathode fluorescent lamps (CCFL) or external electrode fluorescent lamps (EEFL), to provide the high intensity illumination required to display full motion video. In today's TV systems the backlight unit (BLU) represents from 30 per cent to 50 per cent of the total cost of the panel components.

To power these lamps, today's backlight inverters must be able to drive backlight systems with high efficiency, low interference, reliable start up, reliable protection, and tight control of lamp current distribution under multi-lamp environments. To do so, backlight inverters must evolve continuously.

View the PDF document for more information.

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