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Design of the CCFL Driving Piezoelectric Inverter for Large-Screen LCD Backlight

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4 Author(s)
Han, K.W. ; Dept. of Electr. Eng., Chonnam Nat. Univ., Kwangju ; Park, H.S. ; Lim, Y.-C. ; Yang, S.H.

Light source of liquid crystal display (LCD) is used cold cathode fluorescent lamp (CCLF) mainly, and the lamp driving method of LCD backlight inverter of 19 inches low selects H-L (high-low) method that is the most general lamp driving method and is using. However, medium-large sized LCD backlight inverters more than 21 inches are using H-H (high-high) method that is not existent H-L (high-low) method according as need higher driving voltage and current than small sized LCD In this paper, compared with H-L (high-low) lamp driving method applying H-H (high-high) method than is used to large sized LCD backlight inverter to the piezoelectric inverter, and verified that the characteristics of the multi lamp drives, efficiency and brightness through H-H (high-high) lamp driving method are excellent

Published in:

Industrial Electronics and Applications, 2006 1ST IEEE Conference on

Date of Conference:

24-26 May 2006