Abstract: A display device is provided. The display device includes a substrate including a display area and a pad area, which is disposed on one side of the display area, a plurality of conductive layers disposed on the substrate, in the display area and the pad area, a passivation layer disposed on the conductive layers, and a plurality of light-emitting elements disposed on the passivation layer, in the display area, and spaced apart from one another, wherein at least one of the conductive layers includes a first metal layer, a second metal layer, which is disposed on the first metal layer, and a third metal layer, which is disposed on the second metal layer, the first metal layer includes vanadium (V), the second metal layer includes aluminum (Al) or an Al alloy, and the third metal layer includes V or titanium (Ti).

Abstract: A quantum dot sheet includes quantum dots, light scattering agents and a resin, where the resin includes repeated units represented by the chemical formula using an aryl group of C6-C30, and a substituted or unsubstituted alkyl group of C1-C1000.

Abstract: The present disclosure relates to a quantum dot, a resin, a quantum dot sheet, and a back light unit using the same, and more particularly, to a quantum dot including an inorganic ion ligand, a resin with excellent property of blocking oxygen and moisture, a quantum dot sheet with improved light conversion efficiency, and a back light unit including the same. The quantum dot of the present disclosure includes a core including a semiconductor material; and inorganic ion ligands covering the surface of the core, in which the inorganic ion ligand includes element of a halogen group or chalcogen group.