Patent ID: 8678633

Claim:
A lamp electrode printed circuit board of a backlight unit, comprising: an insulating substrate; first and second conductive patterns on a top surface of the insulating substrate along a first direction and in parallel; a connecting pattern extending from one of the first and second conductive patterns; a connecting pad at one end of the connecting pattern; auxiliary patterns on the top surface of the insulating substrate and extending from an edge of the connecting pad such that an area of soldering the connecting pad and a connecting terminal of a lamp wire is increased and adhesion between the connecting pad and the connecting terminal of the lamp wire is strengthened; and a plurality of lamp holders each respectively electrically connected to both the first and second conductive patterns and spaced apart from each other along the first direction, wherein the auxiliary patterns radially extend from the edge of the connecting pad, and wherein each of the auxiliary patterns is flat and a bottom surface of each of the flat auxiliary patterns is disposed directly on and directly contacts the top surface of the insulating substrate.