Display device

A display device comprising:

• at least one first bank and a second bank disposed on a substrate and spaced apart from each other, wherein at least a part of each of the at least one first bank and the second bank protrudes toward an upper surface of the substrate;
• a first electrode that covers the at least one first bank and a second electrode that covers the second bank;
• a first insulating layer that covers the first electrode, the second electrode, and a space between the first electrode and the second electrode;
• a second insulating layer disposed on at least a part of the first insulating layer;
• and
• a light-emitting element disposed on the second insulating layer between the first electrode and the second electrode, wherein
• at least a part of a lower surface of the light-emitting element is chemically bonded to the second insulating layer,
• the light-emitting element comprises:
• a rod-like semiconductor core;
• an insulation film surrounding the semiconductor core;
• and
• a binding group coupled to the insulation film, and
• the second insulating layer comprises a functional group, and
• the chemical bond between the light-emitting element and the second insulating layer is formed by a chemical reaction between the binding group and the functional group.