Patent ID: 8030574

Claim:
A flexible printed circuit comprising: a flexible substrate comprising a first main surface and a second main surface on opposite sides thereof; a plurality of first conductive wires provided on the first main surface, the first conductive wires extending from an edge of the flexible substrate to another edge of the flexible substrate; and a plurality of second conductive wires provided on the second main surface, the second conductive wires extending from said edge of the flexible substrate to a predetermined portion of the flexible substrate; wherein a first part of each of the plurality of second conductive wires at said edge of the flexible substrate is electrically connected with a respective one of the plurality of the first conductive wires via a respective one of a plurality of soldering holes; a second part of said each of the plurality of second conductive wires at the predetermined portion of the flexible substrate is electrically connected with said respective one of the plurality of first conductive wires via a respective one of a plurality of conductive structures associated with the flexible substrate; and a length of said each of the plurality of second conductive wires between said respective one of the plurality of soldering holes and said respective one of the plurality of conductive structures, a length of said respective one of the plurality of first conductive wires between said respective one of the plurality of soldering holes and said respective one of the plurality of conductive structures, said respective one of the plurality of soldering holes and said respective one of the plurality of conductive structures cooperatively form a conductive closed loop.