Patent ID: 8717515

Claim:
An LED substrate that comprises: a radiating plate made from metal; an insulating layer disposed on an upper surface of the radiating plate; a plurality of LEDs disposed on an upper surface of the insulating layer linearly along a longitudinal direction of the radiating plate, and connected to each other in series; a light source pattern disposed at one end on the upper surface of the insulating layer, and connected to the first LED from the one end; a ground pattern disposed at the other end on the upper surface of the insulating layer, and connected to the first LED from the other end; a first connector disposed at one end on the upper surface of the insulating layer, and comprising a light-source-side terminal; and a second connector disposed at the other end on the upper surface of the insulating layer, and comprising a ground-side terminal, wherein the light source pattern is connected to the light-source-side terminal of the first connector, the ground pattern is connected to the ground-side terminal of the second connector, the first connector is disposed in a direction such that an insertion direction of a counterpart connector arranged to be fitted and connected to the first connector is parallel to a width direction of the radiating plate, the width direction being perpendicular to the longitudinal direction of the radiating plate, and the second connector is disposed in a direction such that an insertion direction of a counterpart connector arranged to be fitted and connected to the second connector is parallel to the width direction of the radiating plate.