Patent ID: 7635216

Claim:
A backlight structure, comprising: a light-guide plate having two opposite short sides and two opposite long sides; and an elongated light source module having an effective light-emitting area; wherein the effective light-emitting area has a centerline being transverse to a longitudinal axis of the elongated light source module, one of the long sides of the light-guide plate has a light-entering surface, the light-entering surface has a centerline being parallel to the centerline of the effective light-emitting area of the elongated light source module; the centerline of the effective light-emitting area of the elongated light source module is displaced at a predetermined distance from the centerline of the light-entering surface of the light-guide plate, a first electrode of the elongated light source module is disposed on one side of the centerline of the light-entering surface and a second electrode of the elongated light source module is disposed on the other side of the centerline of the light-entering surface, and a length of the first electrode disposed closer to the centerline of the light-entering surface is longer than a length of the second electrode of the elongated light source module.