Light-emitting device and method of manufacturing the same

A display comprising:

• a display panel comprising:
• a light-emitting structure comprising a plurality of light-emitting devices;
• and
• a driving circuit configured to switch the light-emitting structure on and off;
• and
• a controller configured to input on-off switching signals for the plurality of light-emitting devices to the driving circuit based on an image signal,
• wherein each of the plurality of light-emitting devices comprises:
• a base semiconductor layer;
• a core provided on the base semiconductor layer, the core comprising:
• a body portion extending in a first direction;
• and
• a shielding portion provided at an upper end of the body portion, wherein a width of a lower surface of the shielding portion in a second direction orthogonal to the first direction is greater than a width of the body portion in the second direction;
• a first insulating layer provided on an upper surface of the base semiconductor layer and an upper surface of the shielding portion;
• and
• a light-emitting portion provided on a side surface of the body portion.

A method of manufacturing a light-emitting device, the method comprising:

• forming a base semiconductor layer on a substrate;
• forming a mask layer defining at least one growth hole in the base semiconductor layer;
• forming at least one core comprising:
• a body portion that at least partially fills the at least one growth hole and extends in a first direction;
• and
• a shielding portion that extends from the body portion above an upper surface of the mask layer, wherein a width of a lower surface of the shielding portion in a second direction orthogonal to the first direction is greater than a width of the body portion in the second direction;
• removing the mask layer;
• forming a first insulating layer on an upper surface of the base semiconductor layer and an upper surface of the shielding portion;
• and
• forming at least one light-emitting portion on a side surface of the body portion.