Patent ID: 9484330
Filing Date: 2016-11-01
CPC Classification: H01L

Claim Text:
1. A light-emitting device comprising a plurality of light-emitting units and at least one electrical connection layer arranged between the light-emitting units, each of the light-emitting units comprising: a light-emitting stacking layer comprising: a first electrode layer; an insulation layer; a second electrode layer arranged at least on a side of the light-emitting stacking layer close to the second-type doped semiconductor layer and electrically connected to the second-type doped semiconductor layer, the insulation layer being arranged at least on a sidewall of the at least one first inner opening and forming at least one second inner opening, the first electrode layer being arranged at least in the at least one second inner opening and electrically connected to the first-type doped semiconductor layer; a substrate, the light-emitting units being arranged on the substrate; a first electrode pad directly disposed on the substrate and beneath the first electrode layer of each of the light-emitting units; and a second electrode pad directly disposed on the substrate and beneath the second electrode layer of each of the light-emitting units; wherein the at least one electrical connection layer is electrically connected to the first electrode layer of one of two light-emitting units adjacent to the at least one electrical connection layer through the first electrode pad and electrically connected to the second electrode layer of the other one of the two light-emitting units adjacent to the at least one electrical connection layer through the second electrode pad, so that the light-emitting units are electrically connected to each other through the at least one electrical connection layer, wherein the first electrode layer of each of the light-emitting units is connected to the substrate, wherein the light-emitting device further comprises at least one first through hole, at least one second through hole, at least one first conductive portion, and at least one second conductive portion, the at least one first through hole passes through the substrate, the at least one first conductive portion is arranged in the at least one first through hole and electrically connected to the first electrode layer, the at least one second through hole passes through the substrate, the at least one second conductive portion is arranged in the at least one second through hole and electrically connected to the second electrode layer, and wherein the substrate further comprises a plurality of first pads and a plurality of second pads, each of the first pads is electrically connected to the at least one first conductive portion arranged in the at least one first through hole, and each of the second pads is electrically connected to the at least one second conductive portion arranged in the at least one second through hole.