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

Claim 16:
17. 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;
a first light-emitting structure, a second light-emitting structure, and a third light-emitting structure disposed on the first insulating layer and spaced from each other, each of the first light-emitting structure, the second light-emitting structure, and the third light-emitting structure comprising a first semiconductor layer, an active layer, and a second semiconductor layer;
a first optical layer, which fills a groove having a certain depth and comprises a wavelength conversion material configured to convert light into red light, the groove being formed by a protrusion structure of the second semiconductor layer of the first light-emitting structure;
a second optical layer, which fills a groove having a certain depth and comprises a wavelength conversion material configured to convert light into green light, the groove being formed by the protrusion structure of the second semiconductor layer of the second light-emitting structure;
a third optical layer, which fills a groove having a certain depth and comprises a wavelength conversion material configured to convert light into blue light or comprises a transparent material, the groove being formed by the protrusion structure of the second semiconductor layer of the third light-emitting structure;
a plurality of first electrodes penetrating the substrate and electrically connected to the first semiconductor layer of each of the first light-emitting structure, the second light-emitting structure, and the third light-emitting structure;
a plurality of second insulating layers disposed on side surfaces of each of the first light-emitting structure, the second light-emitting structure, and the third light-emitting structure, respectively; and
a second electrode penetrating the substrate and connected to the first light-emitting structure, the second light-emitting structure, and the third light-emitting structure, the second electrode disposed on an uppermost surface of the second semiconductor layer of each of the first light-emitting structure, the second light-emitting structure, and the third light-emitting structure and each of the plurality of second insulating layers.