Apparatus for driving backlight of liquid crystal display

Details Apparatus for driving backlight of liquid crystal display Apparatus for driving backlight of liquid crystal display

2007-10-09

2007-10-09

Tran, Thuy Vinh (Department: 2821)

Electric lamp and discharge devices: systems

Periodic switch in the supply circuit

Periodic switch in the primary circuit of the supply...

C315S22700A, C315S277000, C315S308000

Reexamination Certificate

active

11454853

ABSTRACT:
This invention relates to a backlight driving apparatus of a liquid crystal display device, and more particularly to a backlight driving apparatus of a liquid crystal display device that includes: first and second transformers that boost an AC voltage to a boosted AC voltage that is supplied to a U-shaped lamp; and a virtual ground fixing device that causes a virtual ground of the U-shaped lamp to be fixed at the center of a bent part of the U-shaped lamp by causing the boosted AC voltage that is output from the first and second transformers to be identical in size.

REFERENCES:
patent: 2006/0043900 (2006-03-01), Ahn et al.
patent: 2006/0061982 (2006-03-01), Lee

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