Patent ID: 8576355
Filing Date: 2013-11-05
Classification: G02F

Abstract:
1. An LED substrate that comprises: a long 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 first 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; and a connector disposed at the one end on the upper surface of the insulating layer, and comprising a light-source-side terminal and a ground-side terminal, wherein the LED substrate further comprises a second ground pattern disposed at the one end on the upper surface of the insulating layer, wherein the light source pattern is connected to the light-source-side terminal of the connector, wherein the second ground pattern is connected to the ground-side terminal of the connector, wherein the first ground pattern is connected to the radiating plate via a first screw made from metal that is inserted in a first through-hole provided to the first ground pattern and the radiating plate, and wherein the second ground pattern is connected to the radiating plate via a second screw made from metal that is inserted in a second through-hole provided to the second ground pattern and the radiating plate.