Light-emitting device, manufacturing method thereof, and display device having same

A method of fabricating a light emitting device, comprising:

• forming, on a substrate, a first partition wall and a second partition wall spaced apart from each other;
• forming a first electrode and a second electrode on the first partition wall and the second partition wall, respectively;
• forming at least one insulating layer on the substrate on which the first electrode and the second electrode are formed;
• forming, in a surface of the insulating layer, at least one groove intersecting with the first electrode and the second electrode;
• supplying light emitting elements onto the at least one insulating layer including in the at least one groove;
• aligning the light emitting elements by forming an electric field between the first electrode and the second electrode;
• forming a first contact portion and a second contact portion by etching the at least one insulating layer so that areas of the first electrode and the second electrode are exposed;
• forming a first contact electrode on an area of the substrate including first ends of the light emitting elements and the first contact portion;
• and
• forming a second contact electrode on an area of the substrate including second ends of the light emitting elements and the second contact portion.

A display device comprising:

• a substrate including a display area;
• and
• a pixel disposed in the display area, the pixel comprising:
• a first electrode and a second electrode disposed on the substrate and spaced apart from each other;
• an insulating layer disposed on the substrate on which the first electrode and the second electrode are formed, the insulating layer including:
• a groove extending in a first direction intersecting with the first electrode and the second electrode;
• and
• a first contact portion and a second contact portion that respectively expose areas of the first electrode and the second electrode;
• light emitting elements disposed in the groove between the first electrode and the second electrode, each of the light emitting elements comprising a first end and a second end electrically connected to the first electrode and the second electrode, respectively;
• a first contact electrode electrically connected to the light emitting elements on the first ends, and electrically connected to the first electrode on the first contact portion;
• and
• a second contact electrode electrically connected to the light emitting elements on the second ends, and electrically connected to the second electrode on the second contact portion.