Patent ID: 7189996

Claim:
An electronic device comprising: a thin film transistor over the substrate; and a light emitting element electrically connected to the thin film transistor, wherein the light emitting element further comprising a first electrode, a light emitting layer, an electron injection layer, and a second electrode, wherein the electron injection layer comprises a layer including a material represented by general formula 1 and at least one of an alkali metal, an alkali earth metal, and a transition metal, wherein each of X 1 and X 2 represents: wherein R 1 to R 8 represents hydrogen, halogen, a cyano group, an alkyl group having 1 to 10 carbon atoms, a haloalkyl group having 1 to 10 carbon atoms, an alkoxyl group having 1 to 10 carbon atoms, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heterocyclic group.