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US 12,006,335 B2Granted
Heterocyclic compound and organic light emitting device comprising same
AssigneeLG Chem, Ltd.
InventorsKyunghee Kim, Tae Yoon Park, Wanpyo Hong, Sujeong Geum, Jongsoo Song
Life of this patent
Estimating the term…
Abstract
A compound represented by Formula 1 and an organic light emitting device including the same, and the compound providing lower driving voltage, improved light efficiency, and improved service life characteristics of the organic light emitting device.
Claims15
A compound of Formula 1:
- wherein, in Formula 1:
- L1 to L5 are the same as or different from each other, and are each independently a substituted or unsubstituted alkylene group,
- Ar1 to Ar5 are the same as or different from each other, and are each independently a substituted or unsubstituted aryl group or a substituted or unsubstituted heteroaryl group;
- R1 to R3 and R5 are the same as or different from each other, and are each independently hydrogen, deuterium, a halogen group, a nitrile group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted silyl group, a substituted or unsubstituted arylamine group, a substituted or unsubstituted arylheteroarylamine group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heteroaryl group;
- R4 is hydrogen;
- deuterium;
- an alkyl group having 1 to 6 carbon atoms, which is unsubstituted or substituted with deuterium;
- or an arylamine group having 6 to 40 carbon atoms, which is unsubstituted or substituted with a substituent selected from the group consisting of deuterium, an alkyl group having 1 to 6 carbon atoms, a trialkylsilyl group having 3 to 30 carbon atoms, and a triarylsilyl group having 6 to 50 carbon atoms;
- r1, r2, n1, and n2 are the same as or different from each other, and are each independently an integer from 0 to 4;
- r4 is an integer from 0 to 3;
- n4 is 0;
- r3, r5, n3, and n5 are the same as or different from each other, and are each independently an integer from 0 to 5;
- m is 0 or 1, and when m is 0, L5 is directly linked to N;
- a value of n1+n2+n3+n5 is an integer from 1 to 21;
- a value of r1+n1 is an integer from 0 to 4, a value of r2+n2 is an integer from 0 to 4, a value of r3+n3 is an integer from 0 to 5, a value of r4+n4 is an integer from 0 to 3, and a value of r5+n5 is an integer from 0 to 5;
- and
- substituents in the parenthesis are the same as or different from each other, provided that r1 to r5, n1 to n3, and n5 is 2 or higher.
14 more elements
An organic light emitting device comprising:
- a first electrode;
- a second electrode provided to face the first electrode;
- and
- an organic material layer having one or more layers provided between the first electrode and the second electrode,
- wherein the organic material layer comprises a hole injection layer or a hole transport layer, and the hole injection layer or the hole transport layer comprises a compound of Formula 1:
- wherein, in Formula 1:
- L1 to L5 are the same as or different from each other, and are each independently a substituted or unsubstituted alkylene group;
- Ar1 to Ar5 are the same as or different from each other, and are each independently a substituted or unsubstituted aryl group or a substituted or unsubstituted heteroaryl group;
- R1 to R5 are the same as or different from each other, and are each independently hydrogen, deuterium, a halogen group, a nitrile group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted silyl group, a substituted or unsubstituted arylamine group, a substituted or unsubstituted arylheteroarylamine group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heteroaryl group;
- r1, r2, n1, and n2 are the same as or different from each other, and are each independently an integer from 0 to 4;
- r4 is an integer from 0 to 3;
- n4 is 0;
- r3, r5, n3, and n5 are the same as or different from each other, and are each independently an integer from 0 to 5;
- m is 0 or 1, and L5 is directly linked to N, provided that m is 0;
- a value of n1+2+n3+n4+n5 is an integer from 1 to 21;
- a value of r1+n1 is an integer from 0 to 4, a value of r2+n2 is an integer from 0 to 4, a value of r3+n3 is an integer from 0 to 5, a value of r4+n4 is an integer from 0 to 3, and a value of r5+n5 is an integer from 0 to 5;
- and
- substituents in the parenthesis are the same as or different from each other, provided that r1 to r5, n1 to n3, and n5 is 2 or higher.
15 more elements
An organic light emitting device comprising:
- a first electrode;
- a second electrode provided to face the first electrode;
- and
- an organic material layer having one or more layers provided between the first electrode and the second electrode,
- wherein the organic material layer comprises an electron injection layer or an electron transport layer, and the electron injection layer or the electron transport layer comprises a compound of Formula 1:
- wherein, in Formula 1:
- L1 to L5 are the same as or different from each other, and are each independently a substituted or unsubstituted alkylene group;
- Ar1 to Ar5 are the same as or different from each other, and are each independently a substituted or unsubstituted aryl group or a substituted or unsubstituted heteroaryl group;
- R1 to R5 are the same as or different from each other, and are each independently hydrogen, deuterium, a halogen group, a nitrile group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted silyl group, a substituted or unsubstituted arylamine group, a substituted or unsubstituted arylheteroarylamine group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heteroaryl group;
- r1, r2, n1, and n2 are the same as or different from each other, and are each independently an integer from 0 to 4;
- r4 is an integer from 0 to 3;
- n4 is 0;
- r3, r5, n3, and n5 are the same as or different from each other, and are each independently an integer from 0 to 5;
- m is 0 or 1, and L5 is directly linked to N, provided that m is 0;
- a value of n1+n2+n3+n4+n5 is an integer from 1 to 21;
- a value of r1+n1 is an integer from 0 to 4, a value of r2+n2 is an integer from 0 to 4, a value of r3+n3 is an integer from 0 to 5, a value of r4+n4 is an integer from 0 to 3, and a value of r5+n5 is an integer from 0 to 5;
- and
- substituents in the parenthesis are the same as or different from each other, provided that r1 to r5, n1 to n3, and n5 is 2 or higher.
15 more elements
Dependencies are inferred from the claim text.