Display device and manufacturing method thereof

A method of fabricating a display device, the method comprising:

• forming a first electrode on a base layer;
• forming a first insulating layer on the first electrode;
• forming an alignment electrode overlapping the first electrode and including first openings on the first insulating layer;
• forming second openings overlapping the first openings in the first insulating layer, using the alignment electrode as a mask;
• supplying light emitting elements on the base layer, and aligning the light emitting elements in cells formed by the first openings and the second openings by applying alignment signals to the first electrode and the alignment electrode;
• electrically connecting first end portions of the light emitting elements to the first electrode by forming a conductive layer overlapping the alignment electrode and the light emitting elements after the light emitting elements are aligned, the conductive layer including:
• contact electrodes disposed in the second openings, each of the contact electrodes including:
• a lower part contacting the first electrode,
• a first protruding part covering a first lateral surface of each of the second openings,
• a second protruding part covering a second lateral surface of each of the second openings opposite to the first lateral surface of each of the second openings, and
• a third protruding part contacting an upper side surface and the first end portion of each of the light emitting elements, the third protruding part disposed between the first protruding part and the second protruding part in a horizontal direction;
• and
• forming a second electrode on second end portions of the light emitting elements to electrically connect the second electrode to the second end portions of the light emitting elements.