Organic light emitting diode and organic light emitting device having the same

An organic light emitting diode, comprising:

• first and second electrodes facing each other;
• and
• at least one emitting unit disposed between the first and second electrodes and comprising an emitting material layer,
• wherein the emitting material layer comprises a first compound, a second compound and a third compound,
• wherein a Lowest Unoccupied Molecular Orbital (LUMO) energy level (LUMOH) of the first compound and a LUMO energy level (LUMOTD) of the second compound satisfies the following relationship in Equation (1),
• wherein a Highest Occupied Molecular Orbital (HOMO) energy level (HOMOH) of the first compound, a HOMO energy level (HOMOTD) of the second compound and a HOMO energy level (HOMOFD) of the third compound satisfies the following relationship in Equation (2),
• wherein an excited state singlet energy level (S1H) of the first compound is higher than an excited state singlet energy level (S1TD) of the second compound, and
• wherein an excited state singlet energy level (S1TD) of the second compound is higher than an excited state singlet energy level (Sim) of the third compound:
• |LUMOH|−|LUMOTD|≤0.8 eV (1)
• |HOMOH|≥|HOMOTD|≥|HOMOFD| (2),
• wherein the first compound is selected from a compound having the following structure of Chemical Formula 3:
• wherein each of R1 to R15 is independently hydrogen, deuterium, tritium, silyl group, C1˜C10 alkyl group, C1˜C10 alkoxy group, C1˜C10 alkyl amino group, C5˜C30 aryl group, C5˜C30 alkyl aryl group, C5˜C30 aryloxyl group, or C5˜C30 aryl amino group or two adjacent groups among R1 to R15 forms a fused aryl ring or a fused hetero aryl ring each of which is unsubstituted or substituted with C5˜C30 aryl group or C4˜C30 hetero aryl group;
• and
• each of X and Y is independently oxygen (O) or sulfur (S);
• wherein the second compound comprises:
• wherein the third compound has a quinoline-acridine core, and
• wherein the third compound is selected from the group consisting of 5,12-dimethylquinolino(2,3-b)acridine-7,14(5H, 12H)-dione, 5,12-diethylquinolino(2,3-b)acridine-7,14(5H, 12H)-dione, 5,12-dibutyl-3,10-difluoroquinolino(2,3-b)acridine-7,14(5H, 12H)-dione, 5,12-dibutyl-3,10-bis(trifluromethyl)quinolino(2,3-b)acridine-7,14(5H, 12H)-dione and combinations thereof.