Organic light emitting diode having high efficiency

An organic light-emitting diode, comprising:

• a first electrode;
• a second electrode facing the first electrode;
• a hole injecting layer or a hole transport layer interposed between the first electrode and the second electrode;
• and
• a light-emitting layer,
• wherein the hole injecting layer or the hole transport layer comprises at least one of the amine compounds represented by the following Chemical Formula A or B:
• wherein,
• A1, A2, E, and F, which may be the same or different, are each independently a substituted or unsubstituted aromatic hydrocarbon ring of 6 to 50 carbon atoms, or a substituted or unsubstituted heteroaromatic ring of 2 to 40 carbon atoms;
• wherein two adjacent carbon atoms within the aromatic ring of A1 and two adjacent carbon atoms within the aromatic ring of A2 form a 5-membered ring with a carbon atom connected to both substituents R1 and R2, thus establishing a fused ring structure;
• linkers L1 to L6, which may be the same or different, are each independently selected from among a single bond and a substituted or unsubstituted arylene of 6 to 60 carbon atoms;
• M is selected from among N-R3, CR4R5, SiR6R7, O, and S;
• R1 to R7 and Ar1 to Ar4, which may be the same or different, are each independently selected from among a hydrogen atom, a deuterium atom, a substituted or unsubstituted alkyl of 1 to 30 carbon atoms, a substituted or unsubstituted aryl of 6 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl of 3 to 30 carbon atoms, a substituted or unsubstituted heteroaryl of 2 to 50 carbon atoms, a substituted or unsubstituted alkylsilyl of 1 to 30 carbon atoms, a substituted or unsubstituted arylsilyl of 6 to 30 carbon atoms, a cyano, a nitro, and a halogen,
• wherein R1 and R2 may be connected to each other to form a five-membered ring, which may be part of a monocyclic or polycyclic aliphatic or aromatic ring system;
• p1 and p2, r1 and r2, and s1 and s2 are each independently an integer of 1 to 3, under which when any of them is 2 or greater, the corresponding linkers L1 to L6 may be the same or different,
• Ar1 and Ar2 may be connected to each other to form a ring and Ar3 and Ar4 may be connected to each other to form a ring;
• two adjacent carbon atoms within the A2 ring in Chemical Formula A are linked to respective * of structure formula Q1 to form a fused ring, and
• two adjacent carbon atoms within the A1 ring in Chemical Formula B are linked to respective * of structure formula Q2 to form a fused ring and two adjacent carbon atoms within the A2 ring in Chemical Formula B are linked to respective * of structure formula Q1 to form a fused ring,
• wherein the term “substituted” in the expression “substituted or unsubstituted” used for [Chemical Formula A] and [Chemical Formula B] means having at least one substituent selected from the group consisting of a deuterium atom, a cyano, a halogen, a nitro, an alkyl of 1 to 24 carbon atoms, a halogenated alkyl of 1 to 24 carbon atoms, an aryl of 6 to 24 carbon atoms, an arylalkyl of 7 to 24 carbon atoms, a heteroaryl of 2 to 24 carbon atoms or a heteroarylalkyl of 2 to 24 carbon atoms, an alkylsilyl of 1 to 24 carbon atoms, and an arylsilyl of 6 to 24 carbon atoms.