An organic light-emitting diode comprising: an organic layer between an anode and a cathode , said organic layer comprising at least first and second light-emitting parts , the at least first and second light-emitting parts having at least a hole transporting layer, an emissive layer, and an electron transporting layer, the at least one organic layer comprises a compound represented by the following Chemical Formula 1: where X 1 and X 2 are carbon or nitrogen, at least one of X 1 and X 2 is a nitrogen atom, L is a single bond, a substituted or unsubstituted C1 to C60 arylene group, or a substituted or unsubstituted 5-membered to 60-membered heteroarylene group having one or more heteroatoms among nitrogen, oxygen, and sulfur, R 1 is a substituted or unsubstituted C6 to C60 aryl group, a substituted or unsubstituted 5-membered to 60-membered heteroaryl group having one or more heteroatoms among nitrogen, oxygen, and sulfur, or a C1 to C20 alkyl group, and R 2 is a substituted or unsubstituted C6 to C60 aryl group, a substituted or unsubstituted 5-membered to 60-membered heteroaryl group having one or more heteroatoms among nitrogen, oxygen, and sulfur, an arylamine group, or a secondary amine group, and wherein the at least one organic layer includes a charge generation layer between each of the light-emitting parts, characterized in that the charge generation layer includes an n-type charge generation layer and a p-type charge generation layer, the n-type charge generation layer having the compound represented by the Chemical Formula 1, and wherein the n-type charge generation layer includes an alkali metal and has the conductive characteristics by forming a chemical bond with the alkali metal and a non-covalent electron pair of a nitrogen atom, which is one of the heteroatoms in the compound represented by the Chemical Formula 1, the compound having the conductive characteristics due to the nitrogen, and the compound having an energy level due to the heteroatoms and conductive characteristics due to the energy level. where X 1 and X 2 are carbon or nitrogen, at least one of X 1 and X 2 is a nitrogen atom, L is a single bond, a substituted or unsubstituted C1 to C60 arylene group, or a substituted or unsubstituted 5-membered to 60-membered heteroarylene group having one or more heteroatoms among nitrogen, oxygen, and sulfur, R 1 is a substituted or unsubstituted C6 to C60 aryl group, a substituted or unsubstituted 5-membered to 60-membered heteroaryl group having one or more heteroatoms among nitrogen, oxygen, and sulfur, or a C1 to C20 alkyl group, and R 2 is a substituted or unsubstituted C6 to C60 aryl group, a substituted or unsubstituted 5-membered to 60-membered heteroaryl group having one or more heteroatoms among nitrogen, oxygen, and sulfur, an arylamine group, or a secondary amine group, and wherein the at least one organic layer includes a charge generation layer between each of the light-emitting parts, characterized in that the charge generation layer includes an n-type charge generation layer and a p-type charge generation layer, the n-type charge generation layer having the compound represented by the Chemical Formula 1, and wherein the n-type charge generation layer includes an alkali metal and has the conductive characteristics by forming a chemical bond with the alkali metal and a non-covalent electron pair of a nitrogen atom, which is one of the heteroatoms in the compound represented by the Chemical Formula 1, the compound having the conductive characteristics due to the nitrogen, and the compound having an energy level due to the heteroatoms and conductive characteristics due to the energy level. <EOS>