Patent ID: 7075244
Filing Date: 2006-07-11
Classification: H05B

Abstract:
1. A multi-lamp backlight system comprising: a core; a first coil set wrapped around the core, to which a first AC voltage is applied; a second coil set and a third coil set wrapped around the core and respectively disposed on first and second sides of the first coil set, on which second and third AC voltages are induced by the first AC voltage signal applied to the first coil set respectively, wherein the number of coils in the second and third coil sets are substantially the same; a first lamp and a second lamp supplied with power by the second and third AC voltages respectively; a first driving circuit providing the first AC voltage; and a plurality of fourth coil sets and a plurality of third lamps, wherein numbers of coils of the fourth coil sets are substantially the same, the fourth coil sets are symmetrically disposed on first and second sides of the first coil set, the first AC voltage applied to the first coil set induces a fourth AC voltage on each of the fourth coil sets and the third lamps are supplied with power by the fourth AC voltages.