Light-emitting structure having a plurality of light-emitting structure units

A light emitting device, comprising:

• a substrate, comprising a top surface;
• a first light-emitting structure unit and a second light-emitting structure unit disposed on the top surface, the first light-emitting structure unit and the second light-emitting structure unit being spaced apart from each other, wherein each of the first light-emitting structure unit and the second light-emitting structure unit comprises a lower layer having a first conductivity and an upper layer having a second conductivity;
• a trench between the first light-emitting structure unit and the second light-emitting structure unit, comprising a bottom portion which is a part of the top surface;
• an isolation layer, disposed on the trench and covering the bottom portion;
• and
• an electrical connection, electrically connecting the first light-emitting structure unit and the second light-emitting structure unit;
• wherein the lower layer comprises an inclined sidewall and the electrical connection physically contacts the inclined sidewall, and
• wherein the electrical connection comprises a bridging structure and a joining structure, and the bridging structure has a width larger than that of the joining structure.