Light emitting diode and display device including the same

A light emitting diode, comprising:

• a first electrode;
• a second electrode overlapping the first electrode;
• and
• an emission layer positioned between the first electrode and the second electrode,
• wherein:
• the emission layer includes a host and a dopant,
• the host includes an alkali metal halide, an alkaline earth metal halide, a transition metal halide, an alkali metal chalcogenide, or an alkaline earth metal chalcogenide, and
• the dopant includes a lanthanide metal or a compound of a lanthanide metal.

A display device, comprising:

• a substrate;
• a thin film transistor positioned on the substrate;
• and
• a light emitting diode connected to the thin film transistor,
• wherein the light emitting diode includes a first electrode, a second electrode overlapping the first electrode, and an emission layer positioned between the first electrode and the second electrode,
• wherein the emission layer includes:
• an alkali metal halide, an alkaline earth metal halide, a transition metal halide, an alkali metal chalcogenide, or an alkaline earth metal chalcogenide, and
• a lanthanide metal or a compound of a lanthanide metal, and
• wherein the emission layer does not include an organic material.