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

Author

Han, K.W. ; Park, H.S. ; Lim, Y.-C. ; Yang, S.H.

Author_Institution

Dept. of Electr. Eng., Chonnam Nat. Univ., Kwangju

fYear

2006

fDate

24-26 May 2006

Firstpage

1

Lastpage

5

Abstract

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

Keywords

driver circuits; fluorescent lamps; invertors; liquid crystal displays; piezoelectric devices; cold cathode fluorescent lamp; high-high method; high-low method; lamp driving method; large-screen LCD backlight inverter; liquid crystal display; multilamp drives; piezoelectric inverter; Brightness; Electrodes; Electrons; Gases; Glass; Inverters; Lamps; Light sources; Stress; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics and Applications, 2006 1ST IEEE Conference on

Conference_Location

Singapore

Print_ISBN

0-7803-9513-1

Electronic_ISBN

0-7803-9514-X

Type

conf

DOI

10.1109/ICIEA.2006.257191

Filename

4025809