Light emitting device

The invention discloses a light emitting device. The light emitting device includes: a substrate; the light emitting diode is arranged on the substrate, and the light emitting diode comprises a first electrode layer, a first functional layer and a second electrode layer which are sequentially arranged on the substrate; the first heat dissipation layer is arranged on the substrate; the light-emitting device is provided with a light-emitting area and a non-light-emitting area; the light-emitting diode is correspondingly arranged in the light-emitting area, and the first heat dissipation layer is located in the non-light-emitting area. According to the light-emitting device, on the premise that the performance of the device is not affected, the accumulation rate of Joule heat can be greatly reduced, and the working life of the device during long-time current driving can be prolonged. 本申请公开了一种发光装置。所述发光装置包括：衬底；发光二极管，设置于所述衬底上，所述发光二极管包括依次设置于所述衬底上的第一电极层、第一功能层、第二电极层；第一散热层，设置于所述衬底上；并且，所述发光装置具有发光区和非发光区；所述发光二极管对应设置于所述发光区