Patent ID: 11935910
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 13:
14. A semiconductor light-emitting device comprising:
a substrate having an upper surface and a lower surface;
a first insulating layer disposed on the upper surface of the substrate;
3N light-emitting structures disposed on the first insulating layer and spaced apart from each other, where N is an integer of 2 or more, each of the 3N light-emitting structures comprising a first semiconductor layer, an active layer, and a second semiconductor layer;
3N optical layers each filling a groove that is formed at a certain depth in the second semiconductor layer of each of the 3N light-emitting structure;
3N first electrodes penetrating the substrate and electrically connected to the first semiconductor layer of each of the 3N light-emitting structures, respectively;
a plurality of second insulating layers disposed on side surfaces of each of the 3N light-emitting structures, respectively; and
a second electrode connected to the 3N light-emitting structures, the second electrode being disposed on an uppermost surface of the second semiconductor layer of each of the 3N light-emitting structures and each of the plurality of second insulating layers,
wherein the second electrode comprises an upper portion disposed on the first insulating layer and a lower portion penetrating the substrate and connected to the upper portion,
wherein the lower portion of the second electrode is disposed between adjacent light emitting structures among the 3N light-emitting structures or disposed outside of the 3N light-emitting structures,
wherein every three light-emitting structures of the 3N light-emitting structures are included in one pixel such that the 3N light-emitting structures form an array of N pixels,
wherein, for each pixel of the array of N pixels, the three light-emitting structures included in the pixel respectively correspond to sub-pixels included in the pixel, and
wherein, for each pixel of the array of pixels, the 3N optical layers included in the pixel comprise materials configured to emit light emitted from a corresponding light-emitting structure as red light, green light, and blue light.