Quantum dot complex having defined surface-bound ligand percentages and display device including the quantum dot complex

A display device comprising:

• a display panel;
• and
• a light control layer disposed on the display panel, the light control layer including a plurality of light control areas, wherein
• at least one of the plurality of light control areas includes a quantum dot complex,
• the quantum dot complex includes:
• a quantum dot;
• and
• a plurality of ligands binding to a surface of the quantum dot,
• the plurality of ligands include:
• a first ligand including a first acid functional group;
• a second ligand including a second acid functional group different from the first acid functional group;
• and
• a third ligand including a thiol group,
• a sum of the first ligand and the second ligand contained in the plurality of ligands is in a range of 40% by weight to 45% by weight, based on a total weight of the plurality of ligands, and
• a content of the third ligand in the plurality of ligands is in a range of 15% by weight to 20% by weight, based on the total weight of the plurality of ligands.