Light-emitting element ink, display device, and method of fabricating the display device

1. A display device comprising:

a substrate;

a plurality of first banks extending in a first direction on the substrate and spaced apart from each other;

first and second electrodes extending in the first direction and on different ones of the first banks spaced apart from each other;

a first insulating layer on the substrate and covering parts of the first and second electrodes;

a plurality of light-emitting elements on the first insulating layer such that both end portions of each of the light-emitting elements are respectively on the first and second electrodes; and

a fluorine-based and/or a silicon-based surfactant on a surface of the first insulating layer.

2. The display device of claim 1 , wherein the surfactant is further on surfaces of the light-emitting elements.

3. The display device of claim 1 , further comprising:

a first contact electrode on the first electrode such that the first contact electrode is in contact with first end portions of the light-emitting elements; and

a second contact electrode on the second electrode such that the second contact electrode is in contact with second end portions of the light-emitting elements.

4. The display device of claim 1 , wherein:

each of the light-emitting elements comprises a first semiconductor layer, a second semiconductor layer, and at least one light-emitting layer between the first and second semiconductor layers, and

the first semiconductor layer, the second semiconductor layer, and the at least one light-emitting layer are surrounded by an insulating film.