Patent ID: 9281449
Filing Date: 2016-03-08
CPC Classification: H01L

Claim Text:
1. A light emitting device comprising: a substrate; a plurality of light emitting cells separated from each other and provided on the substrate, the plurality of light emitting cells including a first light emitting cell and a second light emitting cell, said second light emitting cell neighboring the first light emitting cell; a plurality of conductive interconnection layers, wherein a first one of the plurality of conductive interconnection layers electrically contacts the two neighboring light emitting cells, wherein each of the plurality of light emitting cells includes a light emitting structure including a first conductivity-type semiconductor layer, an active layer and a second conductivity-type semiconductor layer, a first electrode on the first conductivity-type semiconductor layer, a second electrode on the second conductivity-type semiconductor layer, and an etching area, in which the first conductivity-type semiconductor layer is exposed, formed by partially etching the light emitting structure, and an insulating layer along a first side surface of the light emitting structure of the first light emitting cell and along a second side surface of the light emitting structure of the second light emitting cell; wherein the first one of the plurality of connective interconnect layers extends from the second electrode and along the first side surface of the light emitting structure of the first light emitting cell while on the insulating layer, and the first one of the plurality of conductive interconnect layers extends adjacent to the substrate and then along the second side surface of the light emitting structure of the second light emitting cell while on the insulating layer, wherein the light emitting structure of the first light emitting cell includes the first side surface adjacent to the second electrode and parallel with the second electrode, and the light emitting structure of the second light emitting cell includes the second side surface opposite to the first side surface of the first light emitting cell and contacting the etching area, and when a width between the first side surface and the second side surface is defined as W from a top view, the second electrode is provided in an area between a position separated from the first side surface of the light emitting structure by ⅕ W and a position separated from the first side surface of the light emitting structure by ½ W, wherein the second electrode includes a first part disposed in a first direction parallel with the first side surface and a second part disposed in a second direction differing from the first direction, wherein a length of the first part of the second electrode is greater than a length of the second part of the second electrode.