An organic electroluminescence device (100, 200, 300, 400, 500, 600) comprising: an anode (110, 210, 310, 410, 510, 610) and a cathode (120, 220, 320, 420, 520, 620) spaced from each other; at least two light-emission sub-stacks (140 and 150, 240 and 250, 340 and 350, 440 and 450, 540 and 550, 640 and 650) located between the anode and the cathode, wherein each of the at least two light-emission sub-stacks includes at least one light-emission layer (241, 251, 641, 651); and a charge generation layer (130, 230, 330, 360, 430, 460, 530, 560, 630) located between the two light-emission sub-stacks, wherein the charge generation layer includes a stack of a n-type charge generation layer (131, 231, 331, 361, 431, 461, 531, 561, 631) and a p-type charge generation layer (132, 232, 332, 362, 432, 462, 632), wherein the n-type charge generation layer faces the anode, wherein the p-type charge generation layer faces the cathode, characterized in that the n-type charge generation layer contains a compound represented by Chemical Formula 1 and a compound represented by Chemical Formula 2: wherein, in Chemical Formula 1, each of R 1 to R 7 independently represents a substituent selected from the group consisting of hydrogen, a C 1 to C 20 monovalent aliphatic chain and a C 3 to C 30 monovalent aliphatic ring, wherein L 1 represents a substituent selected from the group consisting of a single bond, a substituted or unsubstituted C 5 to C 60 arylene, a substituted or unsubstituted C 4 to C 60 heteroarylene and combinations thereof, wherein Ar 1 represents a substituted or unsubstituted C 5 to C 60 aryl group, wherein P 1 represents a substituted or unsubstituted C 5 to C 60 aryl group, wherein the aryl group defined as P 1 does not have any of the substituents selected from the group consisting of a C 1 to C 20 aliphatic chain linked to an aromatic ring and a C 3 to C 30 aliphatic ring linked to an aromatic ring wherein, in Chemical Formula 2, each of R 1 to R 7 independently represents a substituent selected from the group consisting of hydrogen, a C 1 to C 20 monovalent aliphatic chain and a C 3 to C 30 monovalent aliphatic ring, wherein L 2 represents a substituent selected from the group consisting of a single bond, a substituted or unsubstituted C 5 to C 60 arylene, a substituted or unsubstituted C 4 to C 60 heteroarylene and combinations thereof, wherein Ar 2 represents a substituted or unsubstituted C 5 to C 60 aryl group or a substituted or unsubstituted C 4 to C 60 heteroaryl group, wherein P 2 represents a substituted or unsubstituted C 4 to C 60 heteroaryl group, wherein the heteroaryl group defined as P 2 does not have any substituents selected from the group consisting of a C 1 to C 20 aliphatic chain linked to an aromatic heterocyclic ring and a C 3 to C 30 aliphatic ring linked to an aromatic heterocyclic ring. an anode (110, 210, 310, 410, 510, 610) and a cathode (120, 220, 320, 420, 520, 620) spaced from each other; at least two light-emission sub-stacks (140 and 150, 240 and 250, 340 and 350, 440 and 450, 540 and 550, 640 and 650) located between the anode and the cathode, wherein each of the at least two light-emission sub-stacks includes at least one light-emission layer (241, 251, 641, 651); and a charge generation layer (130, 230, 330, 360, 430, 460, 530, 560, 630) located between the two light-emission sub-stacks, wherein the charge generation layer includes a stack of a n-type charge generation layer (131, 231, 331, 361, 431, 461, 531, 561, 631) and a p-type charge generation layer (132, 232, 332, 362, 432, 462, 632), wherein the n-type charge generation layer faces the anode, wherein the p-type charge generation layer faces the cathode, characterized in that the n-type charge generation layer contains a compound represented by Chemical Formula 1 and a compound represented by Chemical Formula 2: wherein, in Chemical Formula 1, each of R 1 to R 7 independently represents a substituent selected from the group consisting of hydrogen, a C 1 to C 20 monovalent aliphatic chain and a C 3 to C 30 monovalent aliphatic ring, wherein L 1 represents a substituent selected from the group consisting of a single bond, a substituted or unsubstituted C 5 to C 60 arylene, a substituted or unsubstituted C 4 to C 60 heteroarylene and combinations thereof, wherein Ar 1 represents a substituted or unsubstituted C 5 to C 60 aryl group, wherein P 1 represents a substituted or unsubstituted C 5 to C 60 aryl group, wherein the aryl group defined as P 1 does not have any of the substituents selected from the group consisting of a C 1 to C 20 aliphatic chain linked to an aromatic ring and a C 3 to C 30 aliphatic ring linked to an aromatic ring wherein, in Chemical Formula 2, each of R 1 to R 7 independently represents a substituent selected from the group consisting of hydrogen, a C 1 to C 20 monovalent aliphatic chain and a C 3 to C 30 monovalent aliphatic ring, wherein L 2 represents a substituent selected from the group consisting of a single bond, a substituted or unsubstituted C 5 to C 60 arylene, a substituted or unsubstituted C 4 to C 60 heteroarylene and combinations thereof, wherein Ar 2 represents a substituted or unsubstituted C 5 to C 60 aryl group or a substituted or unsubstituted C 4 to C 60 heteroaryl group, wherein P 2 represents a substituted or unsubstituted C 4 to C 60 heteroaryl group, wherein the heteroaryl group defined as P 2 does not have any substituents selected from the group consisting of a C 1 to C 20 aliphatic chain linked to an aromatic heterocyclic ring and a C 3 to C 30 aliphatic ring linked to an aromatic heterocyclic ring.