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US 12,598,907 B2Granted
Organic light emitting diode and organic light emitting device including the same
AssigneeLG Display Co., Ltd.
InventorsSung-Jin Park, In-Bum Song, Do-Han Kim, Jae-Min Moon
Life of this patent
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Abstract
An organic light emitting diode and an organic light emitting device including the organic light emitting diode are discussed. The organic light emitting diode can include a first compound represented by the following formula, a second compound as a p-type host and a third compound as an n-type host in an emitting material layer. As a result, the organic light emitting diode and the organic light emitting device have advantages in the driving voltage, the luminous efficiency and the lifespan.
Claims22
An organic light emitting diode, comprising:
- a first electrode;
- a second electrode facing the first electrode;
- and
- a first emitting part including a first red emitting material layer and positioned between the first and second electrodes,
- wherein the first red emitting material layer includes a first compound, a second compound and a third compound,
- wherein the first compound is represented by Formula 1-1:
- wherein in Formula 1-1:
- M is molybdenum (Mo), tungsten (W), rhenium (Re), ruthenium (Ru), osmium (Os), rhodium (Rh), iridium (Ir), palladium (Pd), platinum (Pt) or silver (Ag);
- each of A and B is a carbon atom;
- R is an unsubstituted or substituted C1-C20 alkyl group, an unsubstituted or substituted C1-C20 alkyl silyl group, an unsubstituted or substituted C3-C30 alicyclic group, an unsubstituted or substituted C3-C30 hetero alicyclic group, an unsubstituted or substituted C6-C30 aromatic group or an unsubstituted or substituted C3-C30 hetero aromatic group;
- each of X1 to X11 is independently a carbon atom, CR1 or N;
- only one of:
- a ring (a) with X3-X5, Y1 and A;
- or a ring (b) with X8-X11, Y2 and B is formed;
- and
- if the ring (a) is formed,
- each of X3 and Y1 is a carbon atom,
- X6 and X7 or X7 and X8 forms an unsubstituted or substituted C3-C30alicyclic ring, an unsubstituted or substituted C3-C30 hetero alicyclic ring, an unsubstituted or substituted C6-C30 aromatic ring or an unsubstituted or substituted C3-C30 hetero aromatic ring;
- and
- Y2 is BR2, CR2R3, C═O, SiR2R3, GeR2R3, PR2, P═O, O, S, SO2, Se, SeO2, Te, TeO2, or NRa, wherein Ra is an unsubstituted or substituted C1-C20 alkyl group or an unsubstituted or substituted C6-C30 aromatic group;
- if the ring (b) is forms,
- each of X8 and Y2 is a carbon atom,
- X1 and X2 or X2 and X3 forms an unsubstituted or substituted C3-C30 alicyclic ring, an unsubstituted or substituted C3-C30 hetero alicyclic ring, an unsubstituted or substituted C6-C30 aromatic ring or an unsubstituted or substituted C3-C30 hetero aromatic ring;
- and
- Y1 is BR2, CR2R3, C═O, SiR2R3, GeR2R3, PR2, P═O, O, S, SO2, Se, SeO2, Te, TeO2, or NRa, wherein Ra is an unsubstituted or substituted C1-C20 alkyl group or an unsubstituted or substituted C6-C30 aromatic group,
- each of R1 to R3 is independently hydrogen, protium, deuterium, tritium, a halogen atom, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazine group, a hydrozone group, an unsubstituted or substituted C1-C20 alkyl group, an unsubstituted or substituted C2-C20 alkenyl group, an unsubstituted or substituted C2-C20 alkynyl group, an unsubstituted or substituted C1-C20 alkoxy group, an amino group, an unsubstituted or substituted C1-C20 alkyl amino group, an unsubstituted or substituted C1-C20 alkyl silyl group, a carboxyl group, a nitrile group, an isonitrile group, a sulfanyl group, a phosphino group, an unsubstituted or substituted C3-C30 alicyclic group, an unsubstituted or substituted C3-C30 hetero alicyclic group, an unsubstituted or substituted C6-C30 aromatic group or an unsubstituted or substituted C3-C30 hetero aromatic group,
- optionally,
- two adjacent R1, and/or R2 and R3 form an unsubstituted or substituted C3-C30 alicyclic ring, an unsubstituted or substituted C3-C30 hetero alicyclic ring, an unsubstituted or substituted C6-C30 aromatic ring or an unsubstituted or substituted C3-C30 hetero aromatic ring;
- is an auxiliary ligand;
- m is an integer of 1 to 3;
- n is an integer of 0 to 2;
- and
- m+n is an oxidation number of M,
- wherein the second compound is represented by Formula 2-1:
- wherein in Formula 2-1:
- one of X12 and X13 is a nitrogen atom (N), and the other one of X12 and X13 is an oxygen atom (O) or a sulfur atom (S);
- each of R4, R5 and R6 is independently selected from the group consisting of an unsubstituted or substituted C6-C30 aryl group and an unsubstituted or substituted C3-C30 heteroaryl group;
- and
- L is selected from the group consisting of an unsubstituted or substituted C6-C30 arylene group and an unsubstituted or substituted C3-C30 heteroarylene group;
- and
- a is 0 or 1,
- wherein the third compound is represented by Formula 3-1:
- wherein in Formula 3-1:
- X is NR8, O or S,
- R8 is selected from the group consisting of an unsubstituted or substituted C1-C10 alkyl group, an unsubstituted or substituted C6-C30 aryl group and an unsubstituted or substituted C3-C30 heteroaryl group, and
- R7 is selected from the group consisting of an unsubstituted or substituted C6-C30 aryl group and an unsubstituted or substituted C3-C30 heteroaryl group.
43 more elements
Dependencies are inferred from the claim text.