Organic light emitting device

An organic light emitting device comprising:

• a cathode;
• an anode;
• a light emitting layer provided between the cathode and the anode, and comprising an aromatic amine derivative as a dopant;
• a first organic material layer provided between the anode and the light emitting layer and including a compound of Chemical Formula 1;
• and
• a second organic material layer provided between the first organic material layer and the light emitting layer and including a compound of Chemical Formula 13:
• wherein, in Chemical Formula 1,
• L1 is a phenyl group, a biphenylyl group, a naphthyl group, or a fluorenylenyl group unsubstituted or substituted with an alkyl group, L2 and L3 are the same as or different from each other, and each independently a substituted or unsubstituted arylene group, a is an integer of 1 to 3, b and c are each an integer of 0 to 3, at least one of b or c is not an integer of 0, and when a to c are each 2 or greater, L1 to L3 in each occurrence are the same as or different from each other;
• Ar1 to Ar6 are the same as or different from each other, and each independently a substituted or unsubstituted aryl group;
• or a substituted or unsubstituted heteroaryl group, or Ar1 and Ar2;
• Ar3 and Ar4;
• Ar5 and Ar6;
• Ar3 and L2;
• or Ar5 and L3 bond to each other and together with the N atom to which they are attached, respectively, to form a monocyclic or multicyclic aromatic or aliphatic hydrocarbon ring or heteroring, 1 is 0, m and n are each independently an integer of 0 to 2, m+n is 1 or greater, and when m or n is 2, each occurrence of —NAr3Ar4 or —NAr5Ar6, respectively, is the same as or different from each other, hydrogen bonds to L1 instead of —NAr1Ar2, when m or n is 0, hydrogen bonds to L2 or L3 instead of —NAr3 Ar4 or —NAr5Ar6, respectively;
• X is NR′;
• O;
• or S, p is 0 or 1, and when p is 0, the 2 carbons attached to X directly bond to each other;
• R is deuterium;
• d is an integer of 0 to 3,
• R′ is hydrogen or deuterium;
• at least one of —NAr3Ar4 or —NAr5Ar6 is represented by the following structural formula:
• which is attached to L2 or L3, respectively, on the para-position, when b or c, respectively, is not 0, and L2 or L3 is each a phenylene,
• wherein,
• Xa is NRc, O, or S;
• and r is 0 such that the two carbons attached to Xa directly bond to each other,
• Ra is deuterium, g is an integer of 0 to 8, and
• Rc is hydrogen or deuterium,
• in Chemical Formula 13,
• Ar7 and Ar8 are the same as or different from each other, and each independently a substituted or unsubstituted aryl group;
• R3 to R5 are deuterium;
• and
• e is an integer of 0-4, f is an integer of 0-3, and x is an integer of 0 to 8,
• wherein the first organic material layer is a hole transfer layer, and does not function as a light emitting layer.