Patent ID: 7834559

Claim:
A lamp circuit of a liquid crystal device (LCD) backlight source, comprising: an unique pair of connectors including a first connector and a second connector; a printed circuit board (PCB) for lamp initialization, having a control circuit and the first connector formed thereon; a first lamp connection board having at least one inverter formed thereon; a second lamp connection board formed separately from the first lamp connection board, having the second connector and a plurality of transformers formed thereon; a plurality of lamps connected between the first and the second lamp connection boards, a number of the lamps being the same as that of the transformers so that each lamp is correspondingly connected to one of the transformer; and a low voltage wire set connected between the first connector and the second connector, wherein a signal transmitted from the first connector is transmitted through the low voltage wire set to the second connector and then to the transformers so that the lamps are driven to operate, and since the inverter is disposed on the first lamp connection board so that a current flown through each of the lamps is effectively balanced.