Patent ID: 8622578

Claim:
A light emitting device, comprising: a flexible substrate having an upper surface; a plurality of electrically conductive heat dissipating pads arranged on said upper surface of said flexible substrate; a plurality of LEDs arranged on the heat dissipating pads, wherein each pad is arranged between the flexible substrate and at least one LED a plurality of tracks connecting directly to the LEDs such that the LEDs are electrically driven through the tracks and the pads, wherein each pad is thermally connected to two or more LEDs asymmetrically positioned thereon, and wherein several LEDs positioned on different pads are arranged closely together in groups such that LEDs in a first group are serially connected to respectively positioned LEDs in a second group and further similarly positioned LEDs are serially connected in sets; wherein said plurality of pads include at least a first pair of pads having at least one LED of said two or more LEDs on each said pad positioned at a first position on said heat dissipating pad, and at least a second pair of pads having at least one LEDs of said two or more LEDs on each said pad positioned at a second position on said heat dissipating pad different than said first position.