Fused ring compound and organic electroluminescent device containing same

Abstract

To provide a condensed ring compound and an organic electroluminescent element containing the same.SOLUTION: The organic electroluminescent element includes a first electrode, a second electrode facing the first electrode, and an organic layer arranged between the first electrode and the second electrode and including a light-emitting layer. The organic layer contains one or more condensed ring compounds of specific structures having the following chemical formula 1 as a partial structure.SELECTED DRAWING: None

Description

[Technical field]

[0001] The present invention relates to a fused ring compound and an organic electroluminescent device containing the same. [Background technology]

[0002] An organic light emitting device is a self-emitting device that has a wider viewing angle, better contrast, shorter response time, and superior luminance, driving voltage, and response speed characteristics than conventional devices, and is capable of multiple colors.

[0003] An organic electroluminescent device may have a structure in which a first electrode is disposed on a substrate, and a hole transport region, a light emitting layer, an electron transport region, and a second electrode are sequentially formed on the first electrode. Holes injected from the first electrode move to the light emitting layer via the hole transport region, and electrons injected from the second electrode move to the light emitting layer via the electron transport region. Carriers such as holes and electrons recombine in the light emitting layer region to generate excitons. Light is generated when the excitons change from an excited state to a ground state. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Korean Patent Publication No. 10-2016-0074630 Summary of the Invention [Problem to be solved by the invention]

[0005] An object of the present invention is to provide a fused ring compound and an organic electroluminescent device containing the same. [Means for solving the problem]

[0006] According to one embodiment, there is provided a fused ring compound represented by the following Chemical Formula 1 and Chemical Formula 2. [ka] ...(chemical formula 1) [ka] ...(chemical formula 2) In the above Chemical Formulas 1 and 2, X 1 is N or C(R 1 ), and X 2 is N or C(R 2 ), and X 3 is N or C(R 3 ), and X 4 is N, C(R 4 ) or C(R x ), and X 5 is N, C(R 5 ) or C(R x ), and X 6 is N, C(R 6 ) or C(R x ), and X 7 is N, C(R 7 ) or C(R x ), and X 8 is N, C(R 8 ) or C(R x ), and X 9 is N, C(R 9 ) or C(R x ), and X 10 is N, C(R 10 ) or C(R x ), and X 11 is N, C(R 11 ) or C(R x ), and X 12 is N or C(R 12 ), and X 13 is N or C(R 13 ), and X 14 is N or C(R 14 ) and X 4 ~X11 At least one of C(R x ) and R x is a group represented by Chemical Formula 2 above, L 1 ~L 3 are each independently a substituted or unsubstituted C 5 -C 60 Hydrocarbon ring groups and substituted or unsubstituted C 1 -C 60 heterocyclic groups, a1 to a3 are each independently selected from integers of 0 to 3; If a1 is 0, then -(L 1 ) a1 - is a single bond, and when a2 is 0, -(L 2 ) a2 - is a single bond, and when a3 is 0, -(L 3 ) a3 - is a single bond, Ar 1 and Ar 2 are each independently a substituted or unsubstituted C 6 -C 60 Aryl groups, substituted or unsubstituted C 1 -C 60 is selected from the group consisting of a heteroaryl group, a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, and a substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group; b1 and b2 are each independently selected from an integer of 1 to 5; R 1 ~R 14 are each independently hydrogen, deuterium, -F-Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, a substituted or unsubstituted C 1 -C 60 Alkyl groups, substituted or unsubstituted C 2 -C 60 Alkenyl groups, substituted or unsubstituted C 2 -C 60 Alkynyl groups, substituted or unsubstituted C 1 -C 60 Alkoxy groups, substituted or unsubstituted C3 -C 10 Cycloalkyl groups, substituted or unsubstituted C 1 -C 10 Heterocycloalkyl groups, substituted or unsubstituted C 3 -C 10 Cycloalkenyl groups, substituted or unsubstituted C 1 -C 10 Heterocycloalkenyl groups, substituted or unsubstituted C 6 -C 60 Aryl groups, substituted or unsubstituted C 6 -C 60 Aryloxy groups, substituted or unsubstituted C 6 -C 60 Arylthio groups, substituted or unsubstituted C 1 -C 60 Heteroaryl groups, substituted or unsubstituted monovalent non-aromatic condensed polycyclic groups, substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic groups, -Si(Q 1 )(Q 2 )(Q 3 ), -N(Q 1 )(Q 2 ), -B(Q 1 )(Q 2 ), -C(=O)(Q 1 ), -S(=O) 2 (Q 1 ), and -P(=O)(Q 1 )(Q 2 ), The above substituted C 5 -C 60 Carbocyclic groups, substituted C 1 -C 60 Heterocyclic groups, substituted C 1 -C 60 Alkyl groups, substituted C 2 -C 60 Alkenyl groups, substituted C 2 -C 60 Alkynyl groups, substituted C 1 -C 60 Alkoxy groups, substituted C 3 -C 10 Cycloalkyl groups, substituted C 1 -C 10Heterocycloalkyl groups, substituted C 3 -C 10 Cycloalkenyl groups, substituted C 1 -C 10 Heterocycloalkenyl Groups, Substituted C 6 -C 60 Aryl groups, substituted C 6 -C 60 Aryloxy groups, substituted C 6 -C 60 Arylthio groups, substituted C 1 -C 60 The substituents of the heteroaryl group, the substituted monovalent non-aromatic condensed polycyclic group, and the substituted monovalent non-aromatic condensed heteropolycyclic group are Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C 1 -C 60 Alkyl group, C 2 -C 60 Alkenyl group, C 2 -C 60 Alkynyl groups and C 1 -C 60 Alkoxy groups; Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C 3 -C 10 Cycloalkyl groups, C 1 -C 10 Heterocycloalkyl groups, C 3 -C 10 Cycloalkenyl group, C 1 -C 10 Heterocycloalkenyl group, C 6 -C 60 Aryl group, C 6 -C 60 Aryloxy group, C 6 -C 60 Arylthio group, C 1 -C 60 Heteroaryl group, monovalent non-aromatic condensed polycyclic group, monovalent non-aromatic condensed heteropolycyclic group, -Si(Q 11 )(Q 12 )(Q 13 ), -N(Q 11)(Q 12 ), -B(Q 11 )(Q 12 ), -C(=O)(Q 11 ), -S(=O) 2 (Q 11 ) and -P(=O)(Q 11 )(Q 12 ) replaced with at least one selected from 1 -C 60 Alkyl group, C 2 -C 60 Alkenyl group, C 2 -C 60 Alkynyl groups and C 1 -C 60 Alkoxy groups; C 3 -C 10 Cycloalkyl groups, C 1 -C 10 Heterocycloalkyl groups, C 3 -C 10 Cycloalkenyl group, C 1 -C 10 Heterocycloalkenyl group, C 6 -C 60 Aryl group, C 6 -C 60 Aryloxy group, C 6 -C 60 Arylthio group, C 1 -C 60 Heteroaryl groups, monovalent non-aromatic condensed polycyclic groups and monovalent non-aromatic condensed heteropolycyclic groups; Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C 1 -C 60 Alkyl group, C 2 -C 60 Alkenyl group, C 2 -C 60 Alkynyl group, C 1 -C 60 Alkoxy group, C 3 -C 10 Cycloalkyl groups, C 1 -C 10 Heterocycloalkyl groups, C 3 -C 10 Cycloalkenyl group, C1 -C 10 Heterocycloalkenyl group, C 6 -C 60 Aryl group, C 6 -C 60 Aryloxy group, C 6 -C 60 Arylthio group, C 1 -C 60 Heteroaryl group, monovalent non-aromatic condensed polycyclic group, monovalent non-aromatic condensed heteropolycyclic group, -Si(Q 21 )(Q 22 )(Q 23 ), -N(Q 21 )(Q 22 ), -B(Q 21 )(Q 22 ), -C(=O)(Q 21 ), -S(=O) 2 (Q 21 ) and -P(=O)(Q 21 )(Q 22 ) replaced with at least one selected from 3 -C 10 Cycloalkyl groups, C 1 -C 10 Heterocycloalkyl groups, C 3 -C 10 Cycloalkenyl group, C 1 -C 10 Heterocycloalkenyl group, C 6 -C 60 Aryl group, C 6 -C 60 Aryloxy group, C 6 -C 60 Arylthio group, C 1 -C 60 Heteroaryl groups, monovalent non-aromatic condensed polycyclic groups and monovalent non-aromatic condensed heteropolycyclic groups; and -Si(Q 31 )(Q 32 )(Q 33 ), -N(Q 31 )(Q 32 ), -B(Q 31 )(Q 32 ), -C(=O)(Q 31 ), -S(=O) 2 (Q 31 ) and -P(=O)(Q31 )(Q 32 ); The aforementioned Q 1 ~Q 3 , Q 11 ~Q 13 , Q 21 ~Q 23 , and Q 31 ~Q 33 are each independently hydrogen, deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazino group, a hydrazono group, C 1 -C 60 Alkyl group, C 2 -C 60 Alkenyl group, C 2 -C 60 Alkynyl group, C 1 -C 60 Alkoxy group, C 3 -C 10 Cycloalkyl groups, C 1 -C 10 Heterocycloalkyl groups, C 3 -C 10 Cycloalkenyl group, C 1 -C 10 Heterocycloalkenyl group, C 6 -C 60 Aryl group, C 1 -C 60 is selected from the group consisting of heteroaryl groups, monovalent non-aromatic condensed polycyclic groups, monovalent non-aromatic condensed heteropolycyclic groups, biphenylyl groups, and terphenylyl groups; * indicates the bond position to the adjacent atom.

[0007] According to another embodiment, there is provided an organic electroluminescent device comprising: a first electrode; a second electrode facing the first electrode; and an organic layer disposed between the first electrode and the second electrode and including a light-emitting layer, wherein the organic layer comprises one or more fused ring compounds represented by Chemical Formula 1 and Chemical Formula 2. Effect of the Invention

[0008] The organic electroluminescent device including the fused ring compound of the present invention can have a low driving voltage, high efficiency and long life. [Brief description of the drawings]

[0009] [Figure 1] 1 is a schematic diagram illustrating a structure of an organic electroluminescent device according to an embodiment. [Diagram 2] 1 is a schematic diagram illustrating a structure of an organic electroluminescent device according to an embodiment. [Diagram 3] 1 is a schematic diagram illustrating a structure of an organic electroluminescent device according to an embodiment. [Figure 4] 1 is a schematic diagram illustrating a structure of an organic electroluminescent device according to an embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] The present invention can be modified in various ways and can have various embodiments, but specific embodiments are illustrated in the drawings and will be described in detail in the detailed description. The advantages, features, and methods of achieving the present invention will become clear by referring to the embodiments described in detail below together with the drawings. However, the present invention is not limited to the embodiments disclosed below, but can be realized in various forms.

[0011] Hereinafter, an embodiment of the present invention will be described in detail with reference to the attached drawings. In the description referring to the drawings, the same or corresponding components are given the same reference numerals, and duplicate descriptions related thereto will be omitted.

[0012] In the following embodiments, the singular expression includes the plural expression unless otherwise clearly indicated in the context.

[0013] In the following embodiments, the terms "comprise" or "have" mean the presence of features or components described in the specification, without precluding the possibility that one or more other features or components may be added.

[0014] In the following embodiments, when a part such as a film, region, or component is said to be on or above another part, this does not only mean that it is directly on top of the other part, but also means that there is another film, region, component, etc. in between.

[0015] In the drawings, the size of components may be exaggerated or reduced for the convenience of explanation. For example, the size and thickness of each component shown in the drawings are arbitrarily shown for the convenience of explanation, and the present invention is not necessarily limited to what is shown in the drawings.

[0016] [General definition of substituents] In this specification, C 1 -C 60 The alkyl group means a linear or branched aliphatic hydrocarbon monovalent group having 1 to 60 carbon atoms, and specific examples include a methyl group, an ethyl group, a propyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, a pentyl group, an iso-amyl group, and a hexyl group. 1 -C 60 The alkylene group is the C 1 -C 60 It means a divalent group having the same structure as an alkyl group.

[0017] In this specification, C 2 -C 60 The alkenyl group is the C 2 -C 60 It means a hydrocarbon group containing one or more carbon double bonds in the middle or at the end of the alkyl group, and specific examples thereof include an ethenyl group, a propenyl group, and a butenyl group. 2 -C 60 The alkenylene group is the C 2 -C 60 It means a divalent group having the same structure as an alkenyl group.

[0018] In this specification, C 2 -C 60 The alkynyl group is the C 2 -C 60It means a hydrocarbon group containing one or more carbon triple bonds in the middle or at the end of the alkyl group, and specific examples thereof include an ethynyl group, a propynyl group, and the like. 2 -C 60 The alkynylene group is the C 2 -C 60 It means a divalent group having the same structure as an alkynyl group.

[0019] In this specification, C 1 -C 60 The alkoxy group is -OA. 101 (Here, A 101 is the aforementioned C 1 -C 60 Specific examples of the aryl group include methoxy, ethoxy, and isopropyloxy groups.

[0020] In this specification, C 3 -C 10 Cycloalkyl groups are C 3 -C 10 It means a monovalent saturated hydrocarbon monocyclic group, and specific examples thereof include a cyclopropyl group, a cyclobutyl group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, and the like. 3 -C 10 The cycloalkylene group is the C 3 -C 10 It means a divalent group having the same structure as a cycloalkyl group.

[0021] In this specification, C 1 -C 10 The heterocycloalkyl group is a C alkyl group containing at least one heteroatom selected from N, O, Si, P and S as a ring-forming atom. 1 -C 10 Specific examples of the cyclic ring include a 1,2,3,4-oxatriazolidinyl group, a tetrahydrofuranyl group, and a tetrahydrothiophenyl group. 1 -C 10 The heterocycloalkylene group is the C 1 -C10 It means a divalent group having the same structure as a heterocycloalkyl group.

[0022] In this specification, C 3 -C 10 Cycloalkenyl groups are C 3 -C 10 It means a monovalent monocyclic group having at least one double bond in the ring but not having aromaticity, and specific examples thereof include a cyclopentenyl group, a cyclohexenyl group, and a cycloheptenyl group. 3 -C 10 The cycloalkenylene group is the above-mentioned C 3 -C 10 It means a divalent group having the same structure as a cycloalkenyl group.

[0023] In this specification, C 1 -C 10 The heterocycloalkenyl group is a C alkyl group containing at least one heteroatom selected from N, O, Si, P and S as a ring-forming atom. 1 -C 10 It is a monovalent monocyclic group having at least one double bond in the ring. 1 -C 10 Specific examples of the heterocycloalkenyl group include a 4,5-dihydro-1,2,3,4-oxatriazolyl group, a 2,3-dihydrofuranyl group, and a 2,3-dihydrothiophenyl group. 1 -C 10 The heterocycloalkenylene group is the C 1 -C 10 It means a divalent group having the same structure as a heterocycloalkenyl group.

[0024] In this specification, C 6 -C 60 The aryl group is C 6 -C 60 means a monovalent radical having a carbocyclic aromatic system, C 6 -C 60 The arylene group is C 6 -C 60C means a divalent group having a carbocyclic aromatic system. 6 -C 60 Specific examples of the aryl group include a phenyl group, a naphthyl group, an anthracenyl group, a phenanthrenyl group, a pyrenyl group, and a chrysenyl group. 6 -C 60 Aryl groups and C 6 -C 60 When the arylene group contains two or more rings, the two or more rings may be fused together.

[0025] In this specification, C 1 -C 60 The heteroaryl group contains at least one heteroatom selected from N, O, Si, P and S as a ring-forming atom, and 1 -C 60 means a monovalent group having a heterocyclic aromatic system, C 1 -C 60 The heteroarylene group contains at least one heteroatom selected from N, O, Si, P, and S as a ring-forming atom, and 1 -C 60 C means a divalent group having a heterocyclic aromatic system. 1 -C 60 Specific examples of the heteroaryl group include a pyridinyl group, a pyrimidinyl group, a pyrazinyl group, a pyridazinyl group, a triazinyl group, a quinolinyl group, and an isoquinolinyl group. 1 -C 60 Heteroaryl groups and C 1 -C 60 When the heteroarylene group contains two or more rings, the two or more rings may be fused together.

[0026] In this specification, C 6 -C 60 The aryloxy group is -OA. 102 (Here, A 102 is the aforementioned C 6 -C 60 aryl group), C 6 -C 60 The arylthio group is -SA 103 (Here, A 103 is the aforementioned C6 -C 60 aryl group).

[0027] In this specification, the monovalent non-aromatic condensed polycyclic group means a monovalent group (e.g., having 8 to 60 carbon atoms) in which two or more rings are condensed with each other, the ring-forming atoms are only carbon atoms, and the entire molecule has non-aromaticity. Specific examples of the monovalent non-aromatic condensed polycyclic group include a fluorenyl group. In this specification, the divalent non-aromatic condensed polycyclic group means a divalent group having the same structure as the above-mentioned monovalent non-aromatic condensed polycyclic group.

[0028] In this specification, the monovalent non-aromatic hetero-condensed polycyclic group means a monovalent group (e.g., having 1 to 60 carbon atoms) in which two or more rings are condensed with each other, and which contains at least one heteroatom selected from N, O, Si, P, and S as a ring-forming atom other than carbon, and the entire molecule has non-aromaticity. Specific examples of the monovalent non-aromatic hetero-condensed polycyclic group include a carbazolyl group. In this specification, the divalent non-aromatic hetero-condensed polycyclic group means a divalent group having the same structure as the above-mentioned monovalent non-aromatic hetero-condensed polycyclic group.

[0029] In this specification, C 5 -C 60 A hydrocarbon ring group is a ring-forming group that contains only carbon atoms. 5 -C 60 It means a monocyclic or polycyclic group. 5 -C 60 The hydrocarbon ring group includes aromatic and non-aromatic carbocyclic groups. 5 -C 60 Hydrocarbon ring groups include rings such as benzene, monovalent groups such as phenyl, and divalent groups such as phenylene. 5 -C 60 Depending on the number of substituents attached to the hydrocarbon ring group, 5 -C 60 The hydrocarbon ring group can be variously modified, such as being a trivalent or tetravalent group.

[0030] In this specification, C1 -C 60 The heterocyclic group is the aforementioned C 5 -C 60 It has the same structure as a hydrocarbon ring group, but contains at least one heteroatom selected from N, O, Si, P, and S in addition to carbon (which may have 1 to 60 carbon atoms) as ring-forming atoms.

[0031] As used herein, the aforementioned substituted C 5 -C 60 Hydrocarbon ring groups, substituted C 1 -C 60 Heterocyclic groups, substituted C 3 -C 10 Cycloalkylene groups, substituted C 1 -C 10 Heterocycloalkylene groups, substituted C 3 -C 10 Cycloalkenylene groups, substituted C 1 -C 10 Heterocycloalkenylene groups, substituted C 6 -C 60 Arylene Groups, Substituted C 1 -C 60 Heteroarylene groups, substituted divalent nonaromatic condensed polycyclic groups, substituted divalent nonaromatic condensed heteropolycyclic groups, substituted C 1 -C 60 Alkyl groups, substituted C 2 -C 60 Alkenyl groups, substituted C 2 -C 60 Alkynyl groups, substituted C 1 -C 60 Alkoxy groups, substituted C 3 -C 10 Cycloalkyl groups, substituted C 1 -C 10 Heterocycloalkyl groups, substituted C 3 -C 10 Cycloalkenyl groups, substituted C 1 -C 10 Heterocycloalkenyl Groups, Substituted C 6 -C 60 Aryl groups, substituted C 6-C 60 Aryloxy groups, substituted C 6 -C 60 Arylthio groups, substituted C 1 -C 60 The substituents of the heteroaryl group, the substituted monovalent non-aromatic condensed polycyclic group, and the substituted monovalent non-aromatic condensed heteropolycyclic group are Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C 1 -C 60 Alkyl group, C 2 -C 60 Alkenyl group, C 2 -C 60 Alkynyl groups and C 1 -C 60 Alkoxy groups; Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C 3 -C 10 Cycloalkyl groups, C 1 -C 10 Heterocycloalkyl groups, C 3 -C 10 Cycloalkenyl group, C 1 -C 10 Heterocycloalkenyl group, C 6 -C 60 Aryl group, C 6 -C 60 Aryloxy group, C 6 -C 60 Arylthio group, C 1 -C 60 Heteroaryl group, monovalent non-aromatic condensed polycyclic group, monovalent non-aromatic condensed heteropolycyclic group, -Si(Q 11 )(Q 12 )(Q 13 ), -N(Q 11 )(Q 12 ), -B(Q 11 )(Q 12 ), -C(=O)(Q 11 ), -S(=O) 2 (Q 11 ) and -P(=O)(Q 11 )(Q 12) replaced with at least one selected from 1 -C 60 Alkyl group, C 2 -C 60 Alkenyl group, C 2 -C 60 Alkynyl groups and C 1 -C 60 Alkoxy groups; C 3 -C 10 Cycloalkyl groups, C 1 -C 10 Heterocycloalkyl groups, C 3 -C 10 Cycloalkenyl group, C 1 -C 10 Heterocycloalkenyl group, C 6 -C 60 Aryl group, C 6 -C 60 Aryloxy group, C 6 -C 60 Arylthio group, C 1 -C 60 Heteroaryl groups, monovalent non-aromatic condensed polycyclic groups and monovalent non-aromatic condensed heteropolycyclic groups; Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C 1 -C 60 Alkyl group, C 2 -C 60 Alkenyl group, C 2 -C 60 Alkynyl group, C 1 -C 60 Alkoxy group, C 3 -C 10 Cycloalkyl groups, C 1 -C 10 Heterocycloalkyl groups, C 3 -C 10 Cycloalkenyl group, C 1 -C 10 Heterocycloalkenyl group, C 6 -C 60 Aryl group, C 6 -C 60 Aryloxy group, C 6 -C 60 Arylthio group, C1 -C 60 Heteroaryl group, monovalent non-aromatic condensed polycyclic group, monovalent non-aromatic condensed heteropolycyclic group, -Si(Q 21 )(Q 22 )(Q 23 ), -N(Q 21 )(Q 22 ), -B(Q 21 )(Q 22 ), -C(=O)(Q 21 ), -S(=O) 2 (Q 21 ) and -P(=O)(Q 21 )(Q 22 ) replaced with at least one selected from 3 -C 10 Cycloalkyl groups, C 1 -C 10 Heterocycloalkyl groups, C 3 -C 10 Cycloalkenyl group, C 1 -C 10 Heterocycloalkenyl group, C 6 -C 60 Aryl group, C 6 -C 60 Aryloxy group, C 6 -C 60 Arylthio group, C 1 -C 60 Heteroaryl groups, monovalent non-aromatic condensed polycyclic groups and monovalent non-aromatic condensed heteropolycyclic groups; and -Si(Q 31 )(Q 32 )(Q 33 ), -N(Q 31 )(Q 32 ), -B(Q 31 )(Q 32 ), -C(=O)(Q 31 ), -S(=O) 2 (Q 31 ) and -P(=O)(Q 31 )(Q 32 ); The aforementioned Q 11 ~Q 13 , Q 21 ~Q 23 , and Q 31 ~Q 33are each independently hydrogen, deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, C 1 -C 60 Alkyl group, C 2 -C 60 Alkenyl group, C 2 -C 60 Alkynyl group, C 1 -C 60 Alkoxy group, C 3 -C 10 Cycloalkyl groups, C 1 -C 10 Heterocycloalkyl groups, C 3 -C 10 Cycloalkenyl group, C 1 -C 10 Heterocycloalkenyl group, C 6 -C 60 Aryl group, C 1 -C 60 It is selected from the group consisting of a heteroaryl group, a monovalent non-aromatic condensed polycyclic group, a monovalent non-aromatic heterocondensed polycyclic group, a biphenylyl group, and a terphenylyl group.

[0032] As used herein, "Ph" means a phenyl group, "Me" means a methyl group, "Et" means an ethyl group, "ter-Bu" or "But" means a tert-butyl group, and "OMe" means a methoxy group.

[0033] In the present specification, the term "biphenylyl group" means a "phenyl group substituted with a phenyl group". The "biphenylyl group" is a group in which the substituent is "C 6 -C 60 It belongs to the "substituted phenyl group" which is an "aryl group."

[0034] In the present specification, the term "terphenylyl group" refers to a "phenyl group substituted with a biphenylyl group". The "terphenylyl group" refers to a phenyl group substituted with a biphenylyl group. 6 -C 60 Aryl-substituted C 6 -C 60 It belongs to the "substituted phenyl group" which is an "aryl group."

[0035] In this specification, unless otherwise defined, * and *' refer to the bond positions to adjacent atoms in the chemical formula.

[0036] The fused ring compounds of the present disclosure are represented by Chemical Formula 1 and Chemical Formula 2 below. [ka] ...(chemical formula 1) [ka] ...(chemical formula 2)

[0037] In Chemical Formula 1, X 1 is N or C(R 1 ), and X 2 is N or C(R 2 ), and X 3 is N or C(R 3 ), and X 4 is N, C(R 4 ) or C(R x ), and X 5 is N, C(R 5 ) or C(R x ), and X 6 is N, C(R 6 ) or C(R x ), and X 7 is N, C(R 7 ) or C(R x ), and X 8 is N, C(R 8 ) or C(R x ), and X 9 is N, C(R 9 ) or C(R x ), and X 10 is N, C(R 10 ) or C(R x ), and X 11 is N, C(R 11 ) or C(R x ), and X 12 is N or C(R 12 ), and X13 is N or C(R 13 ), and X 14 is N or C(R 14 ), and X 4 ~X 11 At least one of C(R x ) and R x is a group represented by the above Chemical Formula 2. * in Chemical Formula 2 represents X in Chemical Formula 1. 4 ~X 11 The bond position of at least one of the C atoms is indicated.

[0038] In Chemical Formula 2, L 1 ~L 3 are each independently a substituted or unsubstituted C 5 -C 60 Hydrocarbon ring groups and substituted or unsubstituted C 1 -C 60 The heterocyclic group is selected from the group consisting of aryl, ... and heterocyclic groups.

[0039] L 1 is a nitrogen atom and Ar 1 is a linker connecting the L 2 is a nitrogen atom and Ar 2 is a linking group connecting the 3 is X in chemical formula 1 4 ~X 11 is a linking group that connects at least one carbon atom in the above formula to the nitrogen atom in formula 2. 1 and L 2 are the Ar groups bonded to them, respectively. 1 Group and Ar 2 Depending on the number of groups, it may be a divalent linking group (for example, see Chemical Formula 3-1 below), a trivalent linking group, a tetravalent linking group, a pentavalent linking group, or a hexavalent linking group.

[0040] In one embodiment, L in Formula 2 1 ~L 3is a benzene ring, a pentalene ring, an indene ring, a naphthalene ring, an azulene ring, a heptalene ring, an indacene ring, an acenaphthene ring, a fluorene ring, a spiro-bifluorene ring, a benzofluorene ring, a phenalene ring, a phenanthrene ring, an anthracene ring, a fluoranthene ring, a triphenylene ring, a pyrene ring, a chrysene ring, a naphthacene ring, a picene ring, a perylene ring, a pentaphenylene ring, a hexacene ring, a pyrrole ring, an imidazole ring, a pyrazole ring, a pyridine ring, a pyrazine ring, a pyrimidine ring, a pyridazine ring, an isoindole ring, an indole ring, an indazole ring, a purine ring, a quinoline ring, an isoquinoline ring, a benzoquinoline ring, a phthalazine ring, a naphthyridin ring, linking groups having the structure of a quinoxaline ring, a quinazoline ring, a cinnoline ring, a carbazole ring, a dibenzosilole ring, a phenanthridine ring, an acridine ring, a phenanthroline ring, a phenazine ring, a benzoxazole ring, a benzimidazole ring, a furan ring, a benzofuran ring, a thiophene ring, a benzothiophene ring, a thiazole ring, an isothiazole ring, a benzothiazole ring, an isoxazole ring, an oxazole ring, a triazole ring, a tetrazole ring, an oxadiazole ring, a triazine ring, a benzoxazole ring, a dibenzofuran ring, a dibenzothiophene ring, a benzocarbazole ring, a dibenzocarbazole ring, or a dibenzosilole ring; and Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C 1 -C 20 Alkyl group, C 1 -C 20Alkoxy group, phenyl group, pentalenyl group, indenyl group, naphthyl group, azulenyl group, heptalenyl group, indacenyl group, acenaphthenyl group, fluorenyl group, spiro-bifluorenyl group, benzofluorenyl group, phenalenyl group, phenanthrenyl group, anthracenyl group, fluoranthenyl group, triphenylenyl group, pyrenyl group, chrysenyl group, naphthacenyl group, picenyl group, perylenyl group, pentaphenylenyl group, hexacenyl group, pyrrolyl group, imidazolyl group, pyrazolyl group, pyridinyl group, pyrazinyl group, pyrimidinyl group, pyridazinyl group, isoindolyl group, indolyl group, indazolyl group, purinyl group, quinolinyl group, isoquinolinyl group, benzoquinolinyl group , phthalazinyl group, naphthyridinyl group, quinoxalinyl group, quinazolinyl group, cinnolinyl group, carbazolyl group, dibenzosilolyl group, phenanthridinyl group, acridinyl group, phenanthrolinyl group, phenazinyl group, benzoxazolyl group, benzimidazolyl group, furanyl group, benzofuranyl group, thiophenyl group, benzothiophenyl group, thiazolyl group, isothiazolyl group, benzothiazolyl group, isoxazolyl group, oxazolyl group, triazolyl group, tetrazolyl group, oxadiazolyl group, triazinyl group, benzoxazolyl group, dibenzofuranyl group, dibenzothiophenyl group, benzocarbazolyl group, dibenzocarbazolyl group, dibenzosilolyl group, -Si(Q 31 )(Q 32 )(Q 33 ), -N(Q 31 )(Q 32 ) and -B(Q 31 )(Q 32a benzene ring, a pentalene ring, an indene ring, a naphthalene ring, an azulene ring, a heptalene ring, an indacene ring, an acenaphthene ring, a fluorene ring, a spiro-bifluorene ring, a benzofluorene ring, a phenalene ring, a phenanthrene ring, an anthracene ring, a fluoranthene ring, a triphenylene ring, a pyrene ring, a chrysene ring, a naphthacene ring, a picene ring, a perylene ring, a pentaphenylene ring, a hexacene ring, a pyrrole ring, an imidazole ring, a pyrazole ring, a pyridine ring, a pyrazine ring, a pyrimidine ring, a pyridazine ring, an isoindole ring, an indole ring, an indazole ring, a purine ring, a quinoline ring, an isoquinoline ring, a benzoquinoline ring, a phthalazine ring, a linking group having a structure of a phenyl ring, a naphthyridine ring, a quinoxaline ring, a quinazoline ring, a cinnoline ring, a carbazole ring, a dibenzosilole ring, a phenanthridine ring, an acridine ring, a phenanthroline ring, a phenazine ring, a benzoxazole ring, a benzimidazole ring, a furan ring, a benzofuran ring, a thiophene ring, a benzothiophene ring, a thiazole ring, an isothiazole ring, a benzothiazole ring, an isoxazole ring, an oxazole ring, a triazole ring, a tetrazole ring, an oxadiazole ring, a triazine ring, a benzoxazole ring, a dibenzofuran ring, a dibenzothiophene ring, a benzocarbazole ring, a dibenzocarbazole ring, or a dibenzosilole ring; The aforementioned Q 31 ~Q 33 are each independently hydrogen, deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazino group, a hydrazono group, C 1 -C 60 Alkyl group, C 2 -C 60 Alkenyl group, C 2 -C 60 Alkynyl group, C 1 -C 60 Alkoxy group, C 3 -C 10 Cycloalkyl groups, C 1 -C 10 Heterocycloalkyl groups, C 3 -C 10 Cycloalkenyl group, C 1 -C10 Heterocycloalkenyl group, C 6 -C 60 Aryl group, C 1 -C 60 It is selected from the group consisting of a heteroaryl group, a monovalent non-aromatic condensed polycyclic group, a monovalent non-aromatic condensed heteropolycyclic group, a biphenylyl group and a terphenylyl group.

[0041] In another embodiment, L in Formula 2 1 ~L 3 may be selected independently from groups represented by the following Chemical Formula 3-1 to Chemical Formula 3-43. [ka] [ka] [ka] [ka] [ka]

[0042] In Chemical Formula 3-1 to Chemical Formula 3-43, Y 1 is O, S, C(Z 3 )(Z 4 ), N(Z 5 ) or Si(Z 6 )(Z 7 ) and Z 1 ~Z 7are each independently hydrogen, deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphate group or a salt thereof, C 1 -C 20 Alkyl group, C 1 -C 20 Alkoxy group, phenyl group, biphenylyl group, terphenylyl group, naphthyl group, fluorenyl group, spiro-bifluorenyl group, benzofluorenyl group, dibenzofluorenyl group, phenanthrenyl group, anthracenyl group, pyrenyl group, chrysenyl group, pyridinyl group, pyrazinyl group, pyrimidinyl group, pyridazinyl group, quinolinyl group, isoquinolinyl group, quinoxalinyl group, quinazolinyl group, carbazolyl group, dibenzofuranyl group, dibenzothiophenyl group, triazinyl group, benzimidazolyl group, phenanthrolinyl group, -Si(Q 31 )(Q 32 )(Q 33 ), -N(Q 31 )(Q 32 ), and -B(Q 31 )(Q 32 ), The aforementioned Q 31 ~Q 33 are independent of each other, C 1 -C 20 Alkyl group, C 1 -C 20 selected from the group consisting of alkoxy, phenyl, biphenylyl, terphenylyl, naphthyl and pyridinyl; d2 is an integer selected from 0 to 2, d3 is an integer selected from 0 to 3, d4 is an integer selected from 0 to 4, d5 is an integer selected from 0 to 5, d6 is an integer selected from 0 to 6, d8 is an integer selected from 0 to 8, * and *' indicate the bond positions to adjacent atoms.

[0043] In one embodiment, -(L 1 ) a1 -, -(L 2 ) a2 -and-(L 3 ) a3 Each - may be independently selected from a single bond and groups represented by the following Chemical Formula 4-1 to Chemical Formula 4-3. [ka]

[0044] In Chemical Formulae 4-1 to 4-3, * and *' indicate the bonding positions to adjacent atoms.

[0045] In Chemical Formula 2, a1 is L 1 a2 indicates the number of L 2 a3 indicates the number of L 3 a1 to a3 are each independently selected from integers of 0 to 3.

[0046] If a1 is 0, then -(L 1 ) a1 - is a single bond, and when a2 is 0, -(L 2 ) a2 - is a single bond, and when a3 is 0, -(L 3 ) a3 - is a single bond. When a1 is 2 or more, L 1 may be the same or different, and when a2 is 2 or more, a plurality of L 2 may be the same or different, and when a3 is 2 or more, a plurality of L 3 may be the same or different.

[0047] In one embodiment, a1 to a3 in Chemical Formula 2 may be 0 or 1, independently of each other.

[0048] In Chemical Formula 2, Ar 1 and Ar 2 are each independently a substituted or unsubstituted C6 -C 60 Aryl groups, substituted or unsubstituted C 1 -C 60 It is selected from the group consisting of a heteroaryl group, a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, and a substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group.

[0049] In one embodiment, Ar in Formula 2 1 and Ar 2 are each independently a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclopentenyl group, a cyclohexenyl group, a phenyl group, a pentalenyl group, an indenyl group, a naphthyl group, an azulenyl group, a heptalenyl group, an indacenyl group, an acenaphthyl group, a fluorenyl group, a spiro-bifluorenyl group, a spiro-cyclopentane-fluorenyl group, a spiro-cyclohexane-fluorenyl group, a spiro-fluorene-benzofluorenyl group, a benzofluorenyl group, a dibenzofluorenyl group, a phenalenyl group, a phenanthrenyl group, an anthracenyl group, a fluoranthenyl group, a triphenylenyl group, a pyrenyl group, a chrysenyl group, a naphthacenyl group, a picenyl group, a perylenyl group, a pentaphenyl group, a hexacenyl group, a pyrrolyl group, an imidazolyl group, a pyrazolyl group, a pyridinyl group, a pyrazinyl group, a pyrimidinyl group, nyl group, pyridazinyl group, isoindolyl group, indolyl group, indazolyl group, purinyl group, quinolinyl group, isoquinolinyl group, benzoquinolinyl group, phthalazinyl group, naphthyridinyl group, quinoxalinyl group, quinazolinyl group, cinnolinyl group, carbazolyl group, phenanthridinyl group, acridinyl group, phenanthrolinyl group, phenazinyl group, benzoxazolyl group, benzimidazolyl group, furanyl group, benzofuranyl group, thiophenyl group, benzothiophenyl group, thiazolyl group, isothiazolyl group, benzothiazolyl group, isoxazolyl group, oxazolyl group, triazolyl group, tetrazolyl group, oxadiazolyl group, triazinyl group, benzoxazolyl group, dibenzofuranyl group, dibenzothiophenyl group, benzocarbazolyl group, dibenzocarbazolyl group and dibenzosilolyl group; Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C 1 -C 20 Alkyl group, C 1 -C 20 Alkoxy group, cyclopentyl group, cyclohexyl group, cycloheptyl group, cyclopentenyl group, cyclohexenyl group, phenyl group, pentalenyl group, indenyl group, naphthyl group, azulenyl group, heptalenyl group, indacenyl group, acenaphthyl group, fluorenyl group, spiro-bifluorenyl group, spiro-cyclopentane-fluorenyl group, spiro-cyclohexane-fluorenyl group, spiro-fluorene-benzofluorenyl group, benzofluorenyl group, dibenzofluorenyl group, phenalenyl group, phenanthrenyl group, anthracenyl group, fluoranthenyl group, triphenylenyl group, pyrenyl group, chrysenyl group, naphthacenyl group, picenyl group, perylenyl group, pentaphenyl group, hexacenyl group, pyrrolyl group, imidazolyl group, pyrazolyl group, pyridinyl group, pyrazinyl group, pyrimidinyl group , pyridazinyl group, isoindolyl group, indolyl group, indazolyl group, purinyl group, quinolinyl group, isoquinolinyl group, benzoquinolinyl group, phthalazinyl group, naphthyridinyl group, quinoxalinyl group, quinazolinyl group, cinnolinyl group, carbazolyl group, phenanthridinyl group, acridinyl group, phenanthrolinyl group, phenazinyl group, benzoxazolyl group, benzimidazolyl group, furanyl group, benzofuranyl group, thiophenyl group, benzothiophenyl group, thiazolyl group, isothiazolyl group, benzothiazolyl group, isoxazolyl group, oxazolyl group, triazolyl group, tetrazolyl group, oxadiazolyl group, triazinyl group, benzoxazolyl group, dibenzofuranyl group, dibenzothiophenyl group, benzocarbazolyl group, dibenzocarbazolyl group, dibenzosilolyl group, -Si(Q 31 )(Q 32 )(Q 33 ), -N(Q 31 )(Q 32 ) and -B(Q 31 )(Q 32a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclopentenyl group, a cyclohexenyl group, a phenyl group, a pentalenyl group, an indenyl group, a naphthyl group, an azulenyl group, a heptalenyl group, an indacenyl group, an acenaphthyl group, a fluorenyl group, a spiro-bifluorenyl group, a spiro-cyclopentane-fluorenyl group, a spiro-cyclohexane ... fluorenyl group, spiro-fluorene-benzofluorenyl group, benzofluorenyl group, dibenzofluorenyl group, phenalenyl group, phenanthrenyl group, anthracenyl group, fluoranthenyl group, triphenylenyl group, pyrenyl group, chrysenyl group, naphthacenyl group, picenyl group, perylenyl group, pentaphenyl group, hexacenyl group, pyrrolyl group, imidazolyl group, pyrazolyl group, pyridinyl group, pyrazinyl group, picenyl group, pyr ... imidyl, pyridazinyl, isoindolyl, indolyl, indazolyl, purinyl, quinolinyl, isoquinolinyl, benzoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, carbazolyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzoxazolyl, benzimidazolyl, furanyl, benzofuranyl, thiophenyl, benzothiophenyl, thiazolyl, isothiazolyl, benzothiazolyl, isoxazolyl, oxazolyl, triazolyl, tetrazolyl, oxadiazolyl, triazinyl, benzoxazolyl, dibenzofuranyl, dibenzothiophenyl, benzocarbazolyl, dibenzocarbazolyl and dibenzosilolyl; Q 31 ~Q 33 are each independently hydrogen, deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazino group, a hydrazono group, C 1 -C 60 Alkyl group, C 2 -C 60 Alkenyl group, C 2 -C 60 Alkynyl group, C 1 -C 60 Alkoxy group, C3 -C 10 Cycloalkyl groups, C 1 -C 10 Heterocycloalkyl groups, C 3 -C 10 Cycloalkenyl group, C 1 -C 10 Heterocycloalkenyl group, C 6 -C 60 Aryl group, C 1 -C 60 It is selected from the group consisting of a heteroaryl group, a monovalent non-aromatic condensed polycyclic group, a monovalent non-aromatic heterocondensed polycyclic group, a biphenylyl group, and a terphenylyl group.

[0050] In another embodiment, Ar in Formula 2 1 and Ar 2 may be independently selected from groups represented by the following Chemical Formulas 5-1 to 5-80. [ka] [ka] [ka] [ka] [ka] [ka] [ka] [ka]

[0051] In Chemical Formula 5-1 to Chemical Formula 5-80, Y 31 is O, S, C(Z 33 )(Z 34 ), N(Z 35 ) or Si(Z 36 )(Z 37 ) and Z 31 ~Z 37 are each independently hydrogen, deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, C 1 -C 20 Alkyl group, C 1 -C 20 Alkoxy group, cyclopentyl group, cyclohexyl group, cycloheptyl group, cyclopentenyl group, cyclohexenyl group, phenyl group, biphenylyl group, naphthyl group, fluorenyl group, spiro-bifluorenyl group, spiro-fluorene-benzofluorenyl group, benzofluorenyl group, dibenzofluorenyl group, phenalenyl group, phenanthrenyl group, anthracenyl group, fluoranthenyl group, triphenylenyl group, pyridinyl group, pyrazinyl group, pyrimidinyl group, quinolinyl group, isoquinolinyl group, benzoquinolinyl group, naphthyridinyl group, quinoxalinyl group, quinazolinyl group, carbazolyl group, phenanthridinyl group, acridinyl group, phenanthrolinyl group, phenazinyl group, triazinyl group, dibenzofuranyl group, dibenzothiophenyl group, dibenzosilolyl group, -Si(Q 31 )(Q 32 )(Q 33 ), -N(Q 31 )(Q 32 ) and -B(Q 31 )(Q 32 ), e2 is selected from 1 and 2; e3 is selected from the group consisting of integers 1 to 3; e4 is selected from the group consisting of integers from 1 to 4; e5 is selected from the group consisting of integers from 1 to 5; e6 is selected from the group consisting of integers 1 to 6; e7 is selected from the group consisting of integers from 1 to 7; e9 is selected from the integers 1 to 9; The aforementioned Q 31 ~Q 33 are independent of each other, C 1 -C 20 Alkyl group, C 1 -C 20 selected from the group consisting of alkoxy, phenyl, biphenylyl, terphenylyl, naphthyl and pyridinyl; * indicates the bond position to the adjacent atom.

[0052] In yet another embodiment, Ar in Formula 2 1 and Ar 2 may be independently selected from groups represented by the following Chemical Formula 6-1 to Chemical Formula 6-40. [ka] [ka] [ka] [ka] [ka]

[0053] In Chemical Formula 6-1 to Chemical Formula 6-40, "Ph" indicates a phenyl group; * indicates the bond position to the adjacent atom.

[0054] In one embodiment, in Formula 2, *-(L 1 ) a1 -(Ar 1 ) b1 and *-(L 2 )a2 -(Ar 2 ) b2 may be independently selected from groups represented by the following Chemical Formulas 7-1 to 7-37, but are not limited thereto. [ka] [ka] [ka] [ka]

[0055] In Chemical Formula 7-1 to Chemical Formula 7-37, "Ph" indicates a phenyl group; * indicates the bond position to the adjacent atom.

[0056] In Chemical Formula 2, b1 is L 1 Ar bound to 1 b2 indicates the number of groups, and L 2 Ar bound to 2 represents the number of groups, and b1 and b2 are each independently selected from integers of 1 to 5.

[0057] When b1 is 2 or more, multiple Ar 1 may be the same or different, and when b2 is 2 or more, a plurality of Ar 2 may be the same or different.

[0058] In one embodiment, b1 and b2 in Chemical Formula 2 may each be 1.

[0059] In Chemical Formula 1, R 1 ~R 14are each independently hydrogen, deuterium, -F-Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, a substituted or unsubstituted C 1 -C 60 Alkyl groups, substituted or unsubstituted C 2 -C 60 Alkenyl groups, substituted or unsubstituted C 2 -C 60 Alkynyl groups, substituted or unsubstituted C 1 -C 60 Alkoxy groups, substituted or unsubstituted C 3 -C 10 Cycloalkyl groups, substituted or unsubstituted C 1 -C 10 Heterocycloalkyl groups, substituted or unsubstituted C 3 -C 10 Cycloalkenyl groups, substituted or unsubstituted C 1 -C 10 Heterocycloalkenyl groups, substituted or unsubstituted C 6 -C 60 Aryl groups, substituted or unsubstituted C 6 -C 60 Aryloxy groups, substituted or unsubstituted C 6 -C 60 Arylthio groups, substituted or unsubstituted C 1 -C 60 Heteroaryl groups, substituted or unsubstituted monovalent non-aromatic condensed polycyclic groups, substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic groups, -Si(Q 1 )(Q 2 )(Q 3 ), -N(Q 1 )(Q 2 ), -B(Q 1 )(Q 2 ), -C(=O)(Q 1 ), -S(=O) 2 (Q 1 ), and -P(=O)(Q 1 )(Q 2 ) may be selected from among

[0060] In one embodiment, R in Formula 1 1 ~R14 are each independently hydrogen, deuterium, -F, -Cl, -Br, -I, a cyano group, C 1 -C 20 Alkyl group and C 1 -C 20 Alkoxy groups; C substituted with at least one selected from the group consisting of deuterium, -F, -Cl, -Br, -I, a cyano group, a phenyl group, and a biphenylyl group; 1 -C 20 Alkyl group and C 1 -C 20 Alkoxy groups; Cyclopentyl, cyclohexyl, cycloheptyl, cyclopentenyl, cyclohexenyl, phenyl, pentalenyl, indenyl, naphthyl, azulenyl, heptalenyl, indacenyl, acenaphthyl, fluorenyl, spiro-bifluorenyl, spiro-cyclopentane-fluorenyl, spiro-cyclohexane-fluorenyl, spiro-fluorene-benzofluorenyl, benzofluorenyl, dibenzofluorenyl, phenalenyl, phenanthrenyl, anthracenyl, fluoranthenyl, triphenylenyl, pyrenyl, chrysenyl, naphthacenyl, picenyl, perylenyl, pentaphenyl, hexacenyl, pyrrolyl, imidazolyl, pyrazolyl, pyridinyl, pyrazinyl, pyrimidinyl, pyrimidine ... ridazinyl group, isoindolyl group, indolyl group, indazolyl group, purinyl group, quinolinyl group, isoquinolinyl group, benzoquinolinyl group, phthalazinyl group, naphthyridinyl group, quinoxalinyl group, quinazolinyl group, cinnolinyl group, carbazolyl group, phenanthridinyl group, acridinyl group, phenanthrolinyl group, phenazinyl group, benzoxazolyl group, benzimidazolyl group, furanyl group, benzofuranyl group, thiophenyl group, benzothiophenyl group, thiazolyl group, isothiazolyl group, benzothiazolyl group, isoxazolyl group, oxazolyl group, triazolyl group, tetrazolyl group, oxadiazolyl group, triazinyl group, benzoxazolyl group, dibenzofuranyl group, dibenzothiophenyl group, benzocarbazolyl group, dibenzocarbazolyl group and dibenzosilolyl group; Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C 1 -C 20 Alkyl group, C 1 -C 20 Alkoxy group, cyclopentyl group, cyclohexyl group, cycloheptyl group, cyclopentenyl group, cyclohexenyl group, phenyl group, pentalenyl group, indenyl group, naphthyl group, azulenyl group, heptalenyl group, indacenyl group, acenaphthyl group, fluorenyl group, spiro-bifluorenyl group, spiro-cyclopentane-fluorenyl group, spiro-cyclohexane-fluorenyl group, spiro-fluorene-benzofluorenyl group, benzofluorenyl group, dibenzofluorenyl group, phenalenyl group, phenanthrenyl group, anthracenyl group, fluoranthenyl group, triphenylenyl group, pyrenyl group, chrysenyl group, naphthacenyl group, picenyl group, perylenyl group, pentaphenyl group, hexacenyl group, pyrrolyl group, imidazolyl group, pyrazolyl group, pyridinyl group, pyrazinyl group, pyrimidinyl group , pyridazinyl group, isoindolyl group, indolyl group, indazolyl group, purinyl group, quinolinyl group, isoquinolinyl group, benzoquinolinyl group, phthalazinyl group, naphthyridinyl group, quinoxalinyl group, quinazolinyl group, cinnolinyl group, carbazolyl group, phenanthridinyl group, acridinyl group, phenanthrolinyl group, phenazinyl group, benzoxazolyl group, benzimidazolyl group, furanyl group, benzofuranyl group, thiophenyl group, benzothiophenyl group, thiazolyl group, isothiazolyl group, benzothiazolyl group, isoxazolyl group, oxazolyl group, triazolyl group, tetrazolyl group, oxadiazolyl group, triazinyl group, benzoxazolyl group, dibenzofuranyl group, dibenzothiophenyl group, benzocarbazolyl group, dibenzocarbazolyl group, dibenzosilolyl group, -Si(Q 31 )(Q 32 )(Q 33 ), -N(Q 31 )(Q 32 ) and -B(Q 31 )(Q 32), a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclopentenyl group, a cyclohexenyl group, a phenyl group, a pentalenyl group, an indenyl group, a naphthyl group, an azulenyl group, a heptalenyl group, an indacenyl group, an acenaphthyl group, a fluorenyl group, a spiro-bifluorenyl group, a spiro-cyclopentane-fluorenyl group, a spiro-cyclohexane-fluorenyl group, a spiro-fluorene-benzofluorenyl group, a benzofluorenyl group, a dibenzofluorenyl group, a phenalenyl group, a phenanthrenyl group, an anthracenyl group, a fluoranthenyl group, a triphenylenyl group, a pyrenyl group, a chrysenyl group, a naphthacenyl group, a picenyl group, a perylenyl group, a pentaphenyl group, a hexacenyl group, a pyrrolyl group, an imidazolyl group, a pyrazolyl group, a pyridinyl group, a pyrazinyl group, groups, pyrimidinyl groups, pyridazinyl groups, isoindolyl groups, indolyl groups, indazolyl groups, purinyl groups, quinolinyl groups, isoquinolinyl groups, benzoquinolinyl groups, phthalazinyl groups, naphthyridinyl groups, quinoxalinyl groups, quinazolinyl groups, cinnolinyl groups, carbazolyl groups, phenanthridinyl groups, acridinyl groups, phenanthrolinyl groups, phenazinyl groups, benzoxazolyl groups, benzimidazolyl groups, furanyl groups, benzofuranyl groups, thiophenyl groups, benzothiophenyl groups, thiazolyl groups, isothiazolyl groups, benzothiazolyl groups, isoxazolyl groups, oxazolyl groups, triazolyl groups, tetrazolyl groups, oxadiazolyl groups, triazinyl groups, benzoxazolyl groups, dibenzofuranyl groups, dibenzothiophenyl groups, benzocarbazolyl groups, dibenzocarbazolyl groups, and dibenzosilolyl groups; and -Si(Q 1 )(Q 2 )(Q 3 ), -N(Q 1 )(Q 2 ), -B(Q 1 )(Q 2 ), -C(=O)(Q 1 ), -S(=O) 2 (Q 1 ) and -P(=O)(Q 1 )(Q 2 ), Q 1~Q 3 , and Q 31 ~Q 33 are each independently hydrogen, deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, C 1 -C 60 Alkyl group, C 2 -C 60 Alkenyl group, C 2 -C 60 Alkynyl group, C 1 -C 60 Alkoxy group, C 3 -C 10 Cycloalkyl groups, C 1 -C 10 Heterocycloalkyl groups, C 3 -C 10 Cycloalkenyl group, C 1 -C 10 Heterocycloalkenyl group, C 6 -C 60 Aryl group, C 1 -C 60 It may be selected from among heteroaryl groups, monovalent non-aromatic fused polycyclic groups, monovalent non-aromatic hetero-fused polycyclic groups, biphenylyl groups, and terphenylyl groups.

[0061] In another embodiment, R in Formula 1 1 ~R 14 are each independently hydrogen, deuterium, -F, -Cl, -Br, -I, a cyano group, C 1 -C 20 Alkyl groups; C substituted with at least one selected from deuterium, -F, -Cl, -Br, -I, and a cyano group 1 -C 20 Alkyl groups; Groups represented by the following chemical formulas 5-1 to 5-80; and -Si(Q 1 )(Q 2 )(Q 3 ), -N(Q 1 )(Q 2 ), -B(Q 1 )(Q 2 ), -C(=O)(Q 1), -S(=O) 2 (Q 1 ) and -P(=O)(Q 1 )(Q 2 ) may be selected from among [ka] [ka] [ka] JPEG0007606835000031.jpg23146 [ka] [ka] [ka] [ka]

[0062] In Chemical Formula 5-1 to Chemical Formula 5-80, Y 31 is O, S, C(Z 33 )(Z 34 ), N(Z 35 ) or Si(Z 36 )(Z 37 ) and Z 31 ~Z 37 are each independently hydrogen, deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, C 1 -C 20 Alkyl group, C 1 -C 20Alkoxy group, cyclopentyl group, cyclohexyl group, cycloheptyl group, cyclopentenyl group, cyclohexenyl group, phenyl group, biphenylyl group, naphthyl group, fluorenyl group, spiro-bifluorenyl group, spiro-fluorene-benzofluorenyl group, benzofluorenyl group, dibenzofluorenyl group, phenalenyl group, phenanthrenyl group, anthracenyl group, fluoranthenyl group, triphenylenyl group, pyridinyl group, pyrazinyl group, pyrimidinyl group, quinolinyl group, isoquinolinyl group, benzoquinolinyl group, naphthyridinyl group, quinoxalinyl group, quinazolinyl group, carbazolyl group, phenanthridinyl group, acridinyl group, phenanthrolinyl group, phenazinyl group, triazinyl group, dibenzofuranyl group, dibenzothiophenyl group, dibenzosilolyl group, -Si(Q 31 )(Q 32 )(Q 33 ), -N(Q 31 )(Q 32 ) and -B(Q 31 )(Q 32 ), e2 is selected from 1 and 2; e3 is selected from the group consisting of integers 1 to 3; e4 is selected from the group consisting of integers from 1 to 4; e5 is selected from the group consisting of integers from 1 to 5; e6 is selected from the group consisting of integers 1 to 6; e7 is selected from the group consisting of integers from 1 to 7; e9 is selected from the integers 1 to 9; The aforementioned Q 31 ~Q 33 are independent of each other, C 1 -C 20 Alkyl group, C 1 -C 20 selected from the group consisting of alkoxy, phenyl, biphenylyl, terphenylyl, naphthyl and pyridinyl; * indicates the bond position to the adjacent atom.

[0063] In yet another embodiment, R in Formula 1 1 ~R 14are, independently of one another, hydrogen, deuterium, -F, -Cl, -Br, -I, cyano, methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl, tert-butyl, pentyl, isoamyl, hexyl, phenyl, biphenylyl, terphenylyl, naphthyl and pyridinyl; and deuterium, -F, -Cl, -Br, -I, a methyl group, an ethyl group, an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, a phenyl group, a biphenylyl group, a terphenylyl group, a naphthyl group and a pyridinyl group substituted with at least one selected from the group consisting of a phenyl group, a biphenylyl group, a terphenylyl group, a naphthyl group and a pyridinyl group.

[0064] In one embodiment, X in Formula 1 4 ~X 11 One of them is C(R x ), and the remainder may be C(R x ) is not necessarily required.

[0065] In another embodiment, X in Formula 1 1 is C(R 1 ), and X 2 is C(R 2 ), and X 3 is C(R 3 ), and X 4 is C(R 4 ) or C(R x ), and X 5 is C(R 5 ) or C(R x ), and X 6 is C(R 6 ) or C(R x ), and X 7 is C(R 7 ) or C(R x ), and X 8 is C(R 8 ) or C(R x ), and X 9 is C(R 9 ) or C(Rx ), and X 10 is C(R 10 ) or C(R x ), and X 11 is C(R 11 ) or C(R x ), and X 12 is C(R 12 ), and X 13 is C(R 13 ), and X 14 is C(R 14 ), and X 4 ~X 11 At least one of C(R x ).

[0066] In yet another embodiment, X in Formula 1 1 is C(R 1 ), and X 2 is C(R 2 ), and X 3 is C(R 3 ), and X 4 is C(R 4 ) or C(R x ), and X 5 is C(R 5 ) or C(R x ), and X 6 is C(R 6 ) or C(R x ), and X 7 is C(R 7 ) or C(R x ), and X 8 is C(R 8 ) or C(R x ), and X 9 is C(R 9 ) or C(R x ), and X 10 is C(R 10 ) or C(R x ), and X 11 is C(R 11 ) or C(R x ), and X 12 is C(R 12 ), and X 13 is C(R 13), and X 14 is C(R 14 ), and X 4 ~X 11 One of them is C(R x ) and the remainder is C(R x ) is not necessarily required.

[0067] In one embodiment, the fused ring compounds represented by Chemical Formula 1 and Chemical Formula 2 may be represented by any one of Chemical Formulas 1-1 to 1-4 below. [ka]

[0068] In Chemical Formula 1-1 to Chemical Formula 1-4, X 1 is N or C(R 1 ), and X 2 is N or C(R 2 ), and X 3 is N or C(R 3 ), and X 4 is N or C(R 4 ), and X 5 is N or C(R 5 ), and X 6 is N or C(R 6 ), and X 7 is N or C(R 7 ), and X 8 is N or C(R 8 ), and X 9 is N or C(R 9 ), and X 10 is N or C(R 10 ), and X 11 is N or C(R 11 ), and X 12 is N or C(R 12 ), and X 13 is N or C(R 13 ), and X 14 is N or C(R 14 ) and L 1 ~L 3, a1~a3, Ar 1 , Ar 2 , b1, b2, and R 1 ~R 14 The definitions of and refer to the explanations given above in this specification.

[0069] In another embodiment, the fused ring compounds represented by Chemical Formula 1 and Chemical Formula 2 may be represented by any one of Chemical Formulas 1-1A to 1-4A below. [ka]

[0070] In Chemical Formula 1-1A to Chemical Formula 1-4A, L 1 ~L 3 , a1~a3, Ar 1 , Ar 2 , b1, b2, and R 1 ~R 14 The definitions of and refer to the explanations given above in this specification.

[0071] For example, in Chemical Formula 1-1 to Chemical Formula 1-4 and Chemical Formula 1-1A to Chemical Formula 1-4A, L 1 ~L 3 may be independently selected from groups represented by Chemical Formula 3-1 to Chemical Formula 3-43, but are not limited thereto.

[0072] As another example, in Chemical Formula 1-1 to Chemical Formula 1-4 and Chemical Formula 1-1A to Chemical Formula 1-4A, -(L 1 ) a1 -, -(L 2 ) a2 -and-(L 3 ) a3 Each - may be independently selected from a single bond and groups represented by Chemical Formula 4-1 to Chemical Formula 4-3, but is not limited thereto.

[0073] For example, in Chemical Formula 1-1 to Chemical Formula 1-4 and Chemical Formula 1-1A to Chemical Formula 1-4A, Ar 1and Ar 2 may be independently selected from groups represented by Chemical Formula 5-1 to Chemical Formula 5-80, but are not limited thereto.

[0074] As another example, in Chemical Formula 1-1 to Chemical Formula 1-4 and Chemical Formula 1-1A to Chemical Formula 1-4A, Ar 1 and Ar 2 may be independently selected from groups represented by Chemical Formula 6-1 to Chemical Formula 6-40, but are not limited thereto.

[0075] For example, in Chemical Formula 1-1, Chemical Formula 1-4, and Chemical Formula 1-1A to Chemical Formula 1-4A, *-(L 1 ) a1 -(Ar 1 ) b1 and *-(L 2 ) a2 -(A r2 ) b2 may be independently selected from groups represented by Chemical Formula 7-1 to Chemical Formula 7-37, but are not limited thereto.

[0076] For example, in Chemical Formula 1-1 to Chemical Formula 1-4, and Chemical Formula 1-1A and Chemical Formula 1-4A, R 1 ~R 14 are, independently of one another, hydrogen, deuterium, -F, -Cl, -Br, -I, cyano, methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl, tert-butyl, pentyl, isoamyl, hexyl, phenyl, biphenylyl, terphenylyl, naphthyl and pyridinyl; and The aryl group may be selected from, but is not limited to, deuterium, -F, -Cl, -Br, -I, methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl, tert-butyl, phenyl, biphenylyl, terphenylyl, naphthyl and pyridinyl groups substituted with at least one selected from phenyl, biphenylyl, terphenylyl, naphthyl and pyridinyl groups.

[0077] According to one embodiment, the fused ring compounds represented by Chemical Formula 1 and Chemical Formula 2 may be selected from the following Compounds 1 to 42, Compounds 44 to 62, Compounds 64 to 84, Compounds 86 to 108, Compounds 110 to 166, Compounds 168 to 186, and Compounds 188 to 225, but are not limited thereto. [ka] [ka] [ka] [ka] [ka] [ka] [ka] [ka] [ka] [ka]

[0078] The fused ring compounds represented by Chemical Formula 1 and Chemical Formula 2 have a planar structure because they include a structure in which the carbon at position 8 of the skeleton derived from spiro-bifluorene is bonded to the carbon at position 8' by a single bond. As a result, the fused ring compounds of the present disclosure can have advantageous properties for hole transport, increasing hole mobility and improving thermal stability. Therefore, the organic electroluminescent device including the fused ring compounds of the present disclosure can have improved heat resistance and life.

[0079] In addition, since the fused ring compound of the present disclosure contains at least one group represented by Chemical Formula 2, it can have excellent hole transport and hole injection properties due to the unshared electron pair present in the nitrogen atom of the amino group. For example, when the fused ring compound of the present disclosure contains one group represented by Chemical Formula 2, an organic electroluminescent device containing the fused ring compound in the hole transport region can have a highest occupied molecular orbital (HOMO) energy level suitable for hole transport and hole injection, resulting in a lower driving voltage and improved current efficiency.

[0080] Therefore, electronic devices, such as organic electroluminescent devices, including the fused ring compounds of the present disclosure can have low driving voltages, high efficiency, and long life.

[0081] Those skilled in the art will be able to recognize how to synthesize the fused ring compounds represented by Chemical Formula 1 and Chemical Formula 2 by referring to the examples provided below.

[0082] At least one of the fused ring compounds represented by Chemical Formula 1 and Chemical Formula 2 is used between a pair of electrodes of an organic electroluminescent device. For example, the fused ring compound may be included in at least one layer selected from the group consisting of a hole transport region, an electron transport region, and an emitting layer.

[0083] Alternatively, the fused ring compounds represented by Chemical Formula 1 and Chemical Formula 2 may be used as a capping layer material located on the outer side of a pair of electrodes of an organic electroluminescent device.

[0084] Accordingly, the present disclosure provides an organic electroluminescent device comprising a first electrode, a second electrode opposed to the first electrode, and an organic layer disposed between the first electrode and the second electrode and including a light-emitting layer, wherein the organic layer comprises one or more fused ring compounds represented by Chemical Formula 1 and Chemical Formula 2 of the present disclosure.

[0085] According to one embodiment, the organic layer of the organic electroluminescent device of the present disclosure may contain one or more fused ring compounds represented by Chemical Formula 1 and Chemical Formula 2.

[0086] In this specification, "the (organic layer) contains one or more fused ring compounds" can also be interpreted as "the (organic layer) may contain one fused ring compound belonging to the categories of Chemical Formula 1 and Chemical Formula 2, or two or more different fused ring compounds belonging to the categories of Chemical Formula 1 and Chemical Formula 2."

[0087] For example, the organic layer may contain only the above-mentioned compound 1 as the fused ring compound of the present disclosure. In this case, compound 1 may be present in the light-emitting layer of the organic electroluminescent device. Alternatively, the organic layer may contain the above-mentioned compound 1 and compound 2 as the fused ring compound of the present disclosure. In this case, compound 1 and compound 2 may be present in the same layer (e.g., compound 1 and compound 2 are both present in the light-emitting layer) or may be present in different layers (e.g., compound 1 is present in the light-emitting layer and compound 2 is present in the hole transport layer).

[0088] According to one embodiment, the first electrode is an anode, the second electrode is a cathode, and the organic layer further includes a hole transport region disposed between the first electrode and the light-emitting layer, and an electron transport region disposed between the light-emitting layer and the second electrode, where the hole transport region may include a hole injection layer, a hole transport layer, a light-emitting auxiliary layer, an electron blocking layer, or any combination thereof, and the electron transport region may include a buffer layer, a hole blocking layer, an electron modulating layer, an electron transport layer, an electron injection layer, or any combination thereof.

[0089] According to one embodiment, the organic layer may include a hole transport region, and the hole transport region may include a fused ring compound of the present disclosure.

[0090] According to one embodiment, the hole transport region of the organic electroluminescent device includes at least one of a hole injection layer and a hole transport layer, and at least one of the hole injection layer and the hole transport layer may include a fused ring compound of the present disclosure.

[0091] According to one embodiment, the hole transport region of the organic electroluminescent device may comprise a hole transport layer, and the hole transport layer may comprise a fused ring compound of the present disclosure.

[0092] According to one embodiment, the hole transport region of the organic electroluminescent device may further comprise a p-dopant having a LUMO energy level of −3.5 eV or less.

[0093] For example, the p-dopant may include at least one selected from the group consisting of quinone derivatives, metal oxides, and cyano group-containing compounds.

[0094] For example, the hole transport region may comprise a hole transport layer, and the hole transport layer may comprise a p-dopant, or the hole transport region may comprise a hole injection layer, and the hole injection layer may comprise a p-dopant.

[0095] According to one embodiment, the light-emitting layer may include a host and a dopant. In this case, the content of the host is greater than the content of the dopant. For example, the dopant may include, but is not limited to, an arylamine compound or a styrylaryl compound.

[0096] According to other embodiments, the light-emitting layer may include a fused ring compound of the present disclosure.

[0097] For example, the light-emitting layer may include a fused ring compound of the present disclosure as a host and further include a dopant, in which case the content of the fused ring compound of the present disclosure is greater than the content of the dopant.

[0098] According to yet another embodiment, the organic electroluminescent device may further include at least one of a first capping layer disposed under the first electrode and a second capping layer disposed on the second electrode, and at least one of the first capping layer and the second capping layer may include a fused ring compound of the present disclosure.

[0099] For example, the organic electroluminescent device may further include a first capping layer, and the first capping layer may include the fused ring compound of the present disclosure. In this case, the light of the organic electroluminescent device is also extracted toward the first capping layer. Therefore, the first electrode may be a transmissive electrode or a semi-transmissive electrode, and the second electrode may be a reflective electrode, but is not limited thereto.

[0100] As another example, the organic electroluminescent device may further include a second capping layer, and the second capping layer may include the fused ring compound of the present disclosure. In this case, the light of the organic electroluminescent device is also extracted in the direction of the second capping layer. Therefore, the second electrode may be a transmissive electrode or a semi-transmissive electrode, and the first electrode may be a reflective electrode, but is not limited thereto.

[0101] As another example, the organic electroluminescent device may further include a first capping layer and a second capping layer, and at least one of the first capping layer and the second capping layer may include a fused ring compound. In this case, light from the organic electroluminescent device may be extracted in both directions of the first capping layer and the second capping layer. Therefore, both the first electrode and the second electrode may be, but are not limited to, a transmissive electrode or a semi-transmissive electrode.

[0102] In this specification, the term "organic layer" refers to a single and / or multiple layers interposed between a first electrode and a second electrode in an organic electroluminescent device. Note that the material contained in the "organic layer" is not limited to an organic material.

[0103] [Explanation of Organic Electroluminescent Device 10] 1 is a schematic cross-sectional view of an organic electroluminescent device 10 according to one embodiment of the present invention. The organic electroluminescent device 10 includes a first electrode 110, an organic layer 150, and a second electrode 190.

[0104] Hereinafter, with reference to FIG. 1, a structure and a manufacturing method of an organic electroluminescent device 10 according to one embodiment of the present invention will be described.

[0105] [First electrode 110] 1, a substrate may be additionally disposed below the first electrode 110 or above the second electrode 190. As the substrate, a glass substrate or a plastic substrate having excellent mechanical strength, thermal stability, transparency, surface smoothness, ease of handling, and waterproofness may be used.

[0106] The first electrode 110 is formed on the substrate using a first electrode material, for example, by deposition or sputtering. When the first electrode 110 is an anode, the first electrode material is selected from materials having a high work function so as to facilitate hole injection.

[0107] The first electrode 110 is a reflective electrode, a semi-transparent electrode, or a transparent electrode. To form the first electrode 110 as a transparent electrode, the material for the first electrode is selected from the group consisting of indium tin oxide (ITO), indium zinc oxide (IZO), tin oxide (SnO 2 ), zinc oxide (ZnO), and any combination thereof, but is not limited thereto. Alternatively, to form the first electrode 110, which is a semi-transmissive electrode or a reflective electrode, the material for the first electrode is selected from the group consisting of magnesium (Mg), silver (Ag), aluminum (Al), aluminum-lithium (Al-Li), calcium (Ca), magnesium-indium (Mg-In), magnesium-silver (Mg-Ag), and any combination thereof, but is not limited thereto.

[0108] The first electrode 110 may have a single-layer structure, which is a single layer, or a multi-layer structure having multiple layers, for example, the first electrode 110 may have a three-layer structure of ITO / Ag / ITO, but is not limited thereto.

[0109] [Organic layer 150] The organic layer 150 is disposed on the first electrode 110. The organic layer 150 includes an emitting layer.

[0110] In addition to the light-emitting layer, the organic layer 150 may further include a hole transport region interposed between the first electrode 110 and the light-emitting layer, and an electron transport region interposed between the light-emitting layer and the second electrode 190.

[0111] [Hole transport region in organic layer 150] The hole transport region can have i) a monolayer structure consisting of a single layer of a single material, ii) a monolayer structure consisting of a single layer of multiple different materials, or iii) a multilayer structure having multiple layers consisting of multiple different materials.

[0112] The hole transport region may include at least one layer selected from a hole injection layer (HIL), a hole transport layer (HTL), a light-emitting auxiliary layer, and an electron blocking layer (EBL).

[0113] For example, the hole transport region may have a single layer structure consisting of a plurality of single layers made of different materials, or a multilayer structure consisting of a hole injection layer / hole transport layer, a hole injection layer / hole transport layer / light emitting auxiliary layer, a hole injection layer / light emitting auxiliary layer, a hole transport layer / light emitting auxiliary layer, or a hole injection layer / hole transport layer / electron blocking layer, which are stacked in this order from the first electrode 110, but is not limited to these.

[0114] The hole transport region may include fused ring compounds represented by Chemical Formula 1 and Chemical Formula 2.

[0115] Alternatively, the hole transport region may include at least one selected from m-MTDATA, TDATA, 2-TNATA, NPB (NPD), β-NPB, TPD, spiro-TPD, spiro-NPB, methylated-NPB, TAPC, HMTPD, 4,4′,4″-tris(N-carbazolyl)triphenylamine (TCTA), polyaniline / dodecylbenzenesulfonic acid (PANI / DBSA), poly(3,4-ethylenedioxythiophene) / poly(4-styrenesulfonate) (PEDOT / PSS), polyaniline / camphorsulfonic acid (PANI / CSA), polyaniline / poly(4-styrenesulfonate) (PANI / PSS), a compound represented by the following formula 201, and a compound represented by the following formula 202, in addition to the fused ring compounds represented by formulas 1 and 2. [ka] [ka] [ka] ...(chemical formula 201) [ka] ...(chemical formula 202)

[0116] In Chemical Formula 201 and Chemical Formula 202, L 201 ~L 204 are each independently a substituted or unsubstituted C 3 -C 10 Cycloalkylene group, substituted or unsubstituted C 1 -C 10 Heterocycloalkylene groups, substituted or unsubstituted C 3 -C 10 Cycloalkenylene group, substituted or unsubstituted C 1 -C 10 Heterocycloalkenylene group, substituted or unsubstituted C 6 -C 60 Arylene group, substituted or unsubstituted C 1 -C 60 is selected from the group consisting of a heteroarylene group, a substituted or unsubstituted divalent non-aromatic condensed polycyclic group, and a substituted or unsubstituted divalent non-aromatic condensed polycyclic heterocyclic group; L 205 *-O-*', *-S-*', *-N(Q 201 )-*', substituted or unsubstituted C 1 -C 20 Alkylene group, substituted or unsubstituted C 2 -C 20 Alkenylene group, substituted or unsubstituted C 3 -C 10 Cycloalkylene group, substituted or unsubstituted C 1 -C 10 Heterocycloalkylene groups, substituted or unsubstituted C 3 -C 10 Cycloalkenylene group, substituted or unsubstituted C 1 -C 10 Heterocycloalkenylene group, substituted or unsubstituted C 6 -C 60 Arylene group, substituted or unsubstituted C 1 -C 60is selected from the group consisting of a heteroarylene group, a substituted or unsubstituted divalent non-aromatic condensed polycyclic group, and a substituted or unsubstituted divalent non-aromatic condensed polycyclic heterocyclic group; xa1 to xa4 are each independently selected from integers of 0 to 3; xa5 is selected from an integer from 1 to 10; R 201 ~R 204 , and Q 201 are each independently a substituted or unsubstituted C 3 -C 10 Cycloalkyl groups, substituted or unsubstituted C 1 -C 10 Heterocycloalkyl groups, substituted or unsubstituted C 3 -C 10 Cycloalkenyl groups, substituted or unsubstituted C 1 -C 10 Heterocycloalkenyl groups, substituted or unsubstituted C 6 -C 60 Aryl groups, substituted or unsubstituted C 6 -C 60 Aryloxy groups, substituted or unsubstituted C 6 -C 60 Arylthio groups, substituted or unsubstituted C 1 -C 60 It is selected from the group consisting of a heteroaryl group, a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, and a substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group.

[0117] For example, in formula 202, R 201 and R 202 may be optionally bonded to each other via a single bond, a dimethyl-methylene group or a diphenyl-methylene group, R 203 and R 204 may alternatively be bonded to each other via a single bond, a dimethyl-methylene group, or a diphenyl-methylene group.

[0118] According to one embodiment, in formula 201 and formula 202, L 201 ~L 205 are independent of each other, a phenylene group, a pentalenylene group, an indenylene group, a naphthylene group, an azulenylene group, a heptalenylene group, an indacenylene group, an acenaphthylene group, a fluorenylene group, a spiro-bifluorenylene group, a benzofluorenylene group, a dibenzofluorenylene group, a phenalenylene group, a phenanthrenylene group, an anthracenylene group, a fluoranthenylene group, a triphenylenylene group, a pyrenylene group, a chrysenylene group, a naphthacenylene group, a picenylene group, perylenylene groups, pentaphenylene groups, hexacenylene groups, pentacenylene groups, rubicenylene groups, coronenylene groups, ovalenylene groups, thiophenylene groups, furanylene groups, carbazolylene groups, indolylene groups, isoindolylene groups, benzofuranylene groups, benzothiophenylene groups, dibenzofuranylene groups, dibenzothiophenylene groups, benzocarbazolylene groups, dibenzocarbazolylene groups, dibenzosilolylene groups, and pyridinylene groups; and Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C 1 -C 20 Alkyl group, C 1 -C 20 Alkoxy group, cyclopentyl group, cyclohexyl group, cycloheptyl group, cyclopentenyl group, cyclohexenyl group, phenyl group, biphenylyl group, terphenylyl group, C 1 -C 10Phenyl groups substituted with alkyl groups, phenyl groups substituted with -F, pentalenyl groups, indenyl groups, naphthyl groups, azulenyl groups, heptalenyl groups, indacenyl groups, acenaphthyl groups, fluorenyl groups, spiro-bifluorenyl groups, benzofluorenyl groups, dibenzofluorenyl groups, phenalenyl groups, phenanthrenyl groups, anthracenyl groups, fluoranthenyl groups, triphenylenyl groups, pyrenyl groups, chrysenyl groups, naphthyl groups, Tacenyl, picenyl, perylenyl, pentaphenyl, hexacenyl, pentacenyl, rubicenyl, coronenyl, ovalenyl, thiophenyl, furanyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothiophenyl, dibenzofuranyl, dibenzothiophenyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, pyridinyl, -Si(Q 31 )(Q 32 )(Q 33 ), and -N(Q 31 )(Q 32 a phenylene group, a pentalenylene group, an indenylene group, a naphthylene group, an azulenylene group, a heptalenylene group, an indacenylene group, an acenaphthylene group, a fluorenylene group, a spiro-bifluorenylene group, a benzofluorenylene group, a dibenzofluorenylene group, a phenalenylene group, a phenanthrenylene group, an anthracenylene group, a fluoranthenylene group, a triphenylenylene group, a pyrenylene group, a chrysenylene group, or a naphthacenylene group, each of which is substituted with at least one selected from the group consisting of groups, picenylene groups, perylenylene groups, pentaphenylene groups, hexacenylene groups, pentacenylene groups, rubicenylene groups, coronenylene groups, ovalenylene groups, thiophenylene groups, furanylene groups, carbazolylene groups, indolylene groups, isoindolylene groups, benzofuranylene groups, benzothiophenylene groups, dibenzofuranylene groups, dibenzothiophenylene groups, benzocarbazolylene groups, dibenzocarbazolylene groups, dibenzosilolylene groups and pyridinylene groups; The aforementioned Q 31 ~Q 33 are independent of each other, C 1 -C 10 Alkyl group, C 1 -C10 It may be selected from the group consisting of alkoxy, phenyl, biphenylyl, terphenylyl and naphthyl groups.

[0119] According to another embodiment, xa1 to xa4 may be 0, 1 or 2, independently of each other.

[0120] According to yet other embodiments, xa5 may be 1, 2, 3 or 4.

[0121] According to yet another embodiment, R 201 ~R 204 , and Q 201 are each independently a phenyl group, a biphenylyl group, a terphenylyl group, a pentalenyl group, an indenyl group, a naphthyl group, an azulenyl group, a heptalenyl group, an indacenyl group, an acenaphthyl group, a fluorenyl group, a spiro-bifluorenyl group, a benzofluorenyl group, a dibenzofluorenyl group, a phenalenyl group, a phenanthrenyl group, an anthracenyl group, a fluoranthenyl group, a triphenylenyl group, a pyrenyl group, a chrysenyl group, a naphthalenyl group, phthalocenyl, picenyl, perylenyl, pentaphenyl, hexacenyl, pentacenyl, rubicenyl, coronenyl, ovalenyl, thiophenyl, furanyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothiophenyl, dibenzofuranyl, dibenzothiophenyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl and pyridinyl groups; and Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C 1 -C 20 Alkyl group, C 1 -C 20 Alkoxy group, cyclopentyl group, cyclohexyl group, cycloheptyl group, cyclopentenyl group, cyclohexenyl group, phenyl group, biphenylyl group, terphenylyl group, C 1 -C 10Phenyl groups substituted with alkyl groups, phenyl groups substituted with -F, pentalenyl groups, indenyl groups, naphthyl groups, azulenyl groups, heptalenyl groups, indacenyl groups, acenaphthyl groups, fluorenyl groups, spiro-bifluorenyl groups, benzofluorenyl groups, dibenzofluorenyl groups, phenalenyl groups, phenanthrenyl groups, anthracenyl groups, fluoranthenyl groups, triphenylenyl groups, pyrenyl groups, chrysenyl groups, naphthyl groups, Tacenyl, picenyl, perylenyl, pentaphenyl, hexacenyl, pentacenyl, rubicenyl, coronenyl, ovalenyl, thiophenyl, furanyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothiophenyl, dibenzofuranyl, dibenzothiophenyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, pyridinyl, -Si(Q 31 )(Q 32 )(Q 33 ), and -N(Q 31 )(Q 32 a phenyl group, a biphenylyl group, a terphenylyl group, a pentalenyl group, an indenyl group, a naphthyl group, an azulenyl group, a heptalenyl group, an indacenyl group, an acenaphthyl group, a fluorenyl group, a spiro-bifluorenyl group, a benzofluorenyl group, a dibenzofluorenyl group, a phenalenyl group, a phenanthrenyl group, an anthracenyl group, a fluoranthenyl group, a triphenylenyl group, a pyrenyl group, or a chrysenyl group, each of which is substituted with at least one selected from the group consisting of , naphthacenyl, picenyl, perylenyl, pentaphenyl, hexacenyl, pentacenyl, rubicenyl, coronenyl, ovalenyl, thiophenyl, furanyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothiophenyl, dibenzofuranyl, dibenzothiophenyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl and pyridinyl groups; The aforementioned Q 31 ~Q 33 For the explanation of the above, please refer to the description in this specification.

[0122] According to yet another embodiment, in formula 201, R 201 ~R 203 At least one of, independently of each other, fluorenyl, spiro-bifluorenyl, carbazolyl, dibenzofuranyl and dibenzothiophenyl groups; and Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C 1 -C 20 Alkyl group, C 1 -C 20 Alkoxy group, cyclopentyl group, cyclohexyl group, cycloheptyl group, cyclopentenyl group, cyclohexenyl group, phenyl group, biphenylyl group, terphenylyl group, C 1 -C 10 The phenyl group may be selected from, but is not limited to, a phenyl group substituted with an alkyl group, a phenyl group substituted with -F, a naphthyl group, a fluorenyl group, a spiro-bifluorenyl group, a carbazolyl group, a dibenzofuranyl group, and a dibenzothiophenyl group, each of which is substituted with at least one selected from the group consisting of a phenyl group substituted with an alkyl group, a phenyl group substituted with -F, a naphthyl group, a fluorenyl group, a spiro-bifluorenyl group, a carbazolyl group, a dibenzofuranyl group, and a dibenzothiophenyl group.

[0123] According to yet another embodiment, in formula 202, i) R 201 and R 202 are bonded to each other via a single bond, and / or ii) R 203 and R 204 may be bonded to each other via a single bond.

[0124] According to yet another embodiment, in formula 202, R 201 ~R 204 At least one of the Carbazolyl groups; and Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C 1 -C 20 Alkyl group, C 1 -C20 Alkoxy group, cyclopentyl group, cyclohexyl group, cycloheptyl group, cyclopentenyl group, cyclohexenyl group, phenyl group, biphenylyl group, terphenylyl group, C 1 -C 10 A phenyl group substituted with an alkyl group, a phenyl group substituted with -F, a carbazolyl group substituted with at least one selected from a naphthyl group, a fluorenyl group, a spiro-bifluorenyl group, a carbazolyl group, a dibenzofuranyl group, and a dibenzothiophenyl group; but is not limited thereto.

[0125] The compound represented by formula 201 may be represented by formula 201-1 below. [ka] ...(chemical formula 201-1)

[0126] For example, the compound represented by formula 201 may be represented by the following formula 201-2, but is not limited thereto. [ka] ...(Chemical formula 201-2)

[0127] As yet another example, the compound represented by formula 201 may be represented by the following formula 201-2(1), but is not limited thereto. [ka] ...(Chemical formula 201-2(1))

[0128] The compound represented by formula 201 may be represented by the following formula 201A: [ka] ...(chemical formula 201A)

[0129] For example, the compound represented by chemical formula 201 may be represented by the following chemical formula 201A(1), but is not limited thereto. [ka] ...(chemical formula 201A(1))

[0130] As yet another example, the compound represented by formula 201 may be represented by the following formula 201A-1, but is not limited thereto. [ka] ...(chemical formula 201A-1)

[0131] According to one embodiment, the compound represented by formula 202 may be represented by formula 202-1 below: [ka] ...(Chemical formula 202-1)

[0132] According to yet another embodiment, the compound represented by formula 202 may be represented by formula 202-1(1): [ka] ...(chemical formula 202-1(1))

[0133] On the other hand, the compound represented by chemical formula 202 may be represented by the following chemical formula 202A. [ka] ...(chemical formula 202A)

[0134] According to yet another embodiment, the compound represented by formula 202 may be represented by formula 202A-1 below: [ka] ...(Chemical formula 202A-1)

[0135] In chemical formula 201-1, chemical formula 201-2, chemical formula 201-2(1), chemical formula 201A, chemical formula 201A(1), chemical formula 201A-1, chemical formula 202-1, chemical formula 202-1(1), chemical formula 202A and chemical formula 202A-1, L 201 ~L 203 , xa1 to xa3, xa5, and R 202 ~R 204 For the description of L 205 is selected from the group consisting of a phenylene group and a fluorenylene group; X 211 is O, S and N(R 211 ), X 212 is O, S and N(R 212 ), R 211 and R 212 The explanation for R 203 Please refer to the explanation of R 213 ~R 217 are each independently hydrogen, deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, C 1 -C 20 Alkyl group, C 1 -C 20 Alkoxy group, cyclopentyl group, cyclohexyl group, cycloheptyl group, cyclopentenyl group, cyclohexenyl group, phenyl group, biphenylyl group, terphenylyl group, C 1 -C 10Phenyl substituted with an alkyl group, phenyl substituted with -F, pentalenyl, indenyl, naphthyl, azulenyl, heptalenyl, indacenyl, acenaphthyl, fluorenyl, spiro-bifluorenyl, benzofluorenyl, dibenzofluorenyl, phenalenyl, phenanthrenyl, anthracenyl, fluoranthenyl, triphenylenyl, pyrenyl, chrysenyl, naphthacenyl , picenyl group, perylenyl group, pentaphenyl group, hexacenyl group, pentacenyl group, rubicenyl group, coronenyl group, ovalenyl group, thiophenyl group, furanyl group, carbazolyl group, indolyl group, isoindolyl group, benzofuranyl group, benzothiophenyl group, dibenzofuranyl group, dibenzothiophenyl group, benzocarbazolyl group, dibenzocarbazolyl group, dibenzosilolyl group, and pyridinyl group.

[0136] The hole transport region may contain at least one compound selected from the following compounds HT1 to HT48, but is not limited thereto. [ka] [ka] [ka] [ka] [ka] [ka] [ka] [ka]

[0137] The thickness of the hole transport region may be about 10 nm to about 1,000 nm, for example, about 10 nm to about 100 nm. If the hole transport region includes at least one layer of a hole injection layer and a hole transport layer, the thickness of the hole injection layer may be about 10 nm to about 900 nm, for example, about 10 nm to about 100 nm, and the thickness of the hole transport layer may be about 5 nm to about 200 nm, for example, about 10 nm to about 150 nm. When the thicknesses of the hole transport region, the hole injection layer, and the hole transport layer satisfy the above-mentioned ranges, excellent hole transport properties can be obtained without a substantial increase in driving voltage.

[0138] The light-emitting auxiliary layer is a layer that compensates for the optical resonance distance according to the wavelength of light emitted from the light-emitting layer to increase light emission efficiency, and the electron blocking layer is a layer that prevents electron injection from the electron transport region. The light-emitting auxiliary layer and the electron blocking layer may include the above-mentioned materials.

[0139] [p-dopant] In addition to the materials described above, the hole transport region may further include a charge generating material to improve electrical conductivity. The charge generating material may be uniformly or non-uniformly dispersed in the hole transport region.

[0140] The charge generating material can be, for example, a p-dopant.

[0141] According to one embodiment, the LUMO of the p-dopant may be less than or equal to -3.5 eV.

[0142] The p-dopant may include at least one selected from the group consisting of quinone derivatives, metal oxides, and cyano group-containing compounds, but is not limited thereto.

[0143] For example, the p-dopant is Quinone derivatives such as tetracyanoquinodimethane (TCNQ) and 2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane (F4-TCNQ); Metal oxides such as tungsten oxide and molybdenum oxide; 1,4,5,8,9,12-Hexaazatriphenylene-hexacarbonitrile (HAT-CN); and The compound represented by the following chemical formula 221 may include at least one selected from the following, but is not limited thereto. <hat-cn>

change

[0144] In formula 221, R 221 ~R 223 are each independently a substituted or unsubstituted C 3 -C 10 Cycloalkyl groups, substituted or unsubstituted C 1 -C 10 Heterocycloalkyl groups, substituted or unsubstituted C 3 -C 10 Cycloalkenyl groups, substituted or unsubstituted C 1 -C 10 Heterocycloalkenyl groups, substituted or unsubstituted C 6 -C 60 Aryl groups, substituted or unsubstituted C 1 -C 60 is selected from the group consisting of a heteroaryl group, a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, and a substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group, 221 ~R 223 At least one of the C substituted with a cyano group, -F, -Cl, -Br, -I, or -F 1 -C 20 Alkyl group, C substituted with -Cl 1 -C 20 C substituted with alkyl group, -Br 1 -C 20 C substituted with alkyl group and -I 1 -C 20 It has at least one substituent selected from the group consisting of alkyl groups.

[0145] [Light-emitting layer in organic layer 150] When the organic electroluminescent device 10 is a full-color organic electroluminescent device, the light-emitting layer may be patterned into a red light-emitting layer, a green light-emitting layer, and a blue light-emitting layer for each subpixel, or the light-emitting layer may have a structure in which two or more layers selected from the red light-emitting layer, the green light-emitting layer, and the blue light-emitting layer are stacked in contact with each other or spaced apart from each other, or may have a structure in which two or more materials selected from the red light-emitting material, the green light-emitting material, and the blue light-emitting material are mixed without layer division, and may emit white light.

[0146] The light-emitting layer may include a host and a light-emitting material. The light-emitting material may include at least one of a phosphorescent dopant, a fluorescent dopant, and a quantum dot.

[0147] The content of the dopant in the light-emitting layer is generally selected from the range of about 0.01 to about 15 parts by weight based on about 100 parts by weight of the host, but is not limited thereto.

[0148] The thickness of the light-emitting layer may be about 10 nm to about 100 nm, for example, about 20 nm to about 60 nm. When the thickness of the light-emitting layer satisfies the above-mentioned range, excellent light-emitting characteristics can be exhibited without a substantial increase in driving voltage.

[0149] [Host in the light-emitting layer] The host may include a compound represented by formula 301 below. [Ar 301 ] xb11 -[(L 301 ) xb1 -R 301 ] xb21 ...(chemical formula 301)

[0150] In the chemical formula 301, Ar 301 is a substituted or unsubstituted C 5 -C 60 Hydrocarbon ring group or substituted or unsubstituted C 1 -C 60 is a heterocyclic group, xb11 is 1, 2 or 3; L 301 is a substituted or unsubstituted C 3 -C 10 Cycloalkylene group, substituted or unsubstituted C 1 -C 10 Heterocycloalkylene groups, substituted or unsubstituted C 3 -C 10 Cycloalkenylene group, substituted or unsubstituted C 1 -C 10 Heterocycloalkenylene group, substituted or unsubstituted C 6 -C 60 Arylene group, substituted or unsubstituted C 1 -C 60 is selected from the group consisting of a heteroarylene group, a substituted or unsubstituted divalent non-aromatic condensed polycyclic group, and a substituted or unsubstituted divalent non-aromatic condensed polycyclic heterocyclic group; xb1 is selected from integers from 0 to 5; R 301 is deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazino, hydrazono, substituted or unsubstituted C 1 -C 60 Alkyl groups, substituted or unsubstituted C 2 -C 60 Alkenyl groups, substituted or unsubstituted C 2 -C 60 Alkynyl groups, substituted or unsubstituted C 1 -C 60 Alkoxy groups, substituted or unsubstituted C 3 -C 10 Cycloalkyl groups, substituted or unsubstituted C 1 -C 10 Heterocycloalkyl groups, substituted or unsubstituted C 3 -C 10 Cycloalkenyl groups, substituted or unsubstituted C 1 -C 10 Heterocycloalkenyl groups, substituted or unsubstituted C 6 -C 60 Aryl groups, substituted or unsubstituted C 6 -C 60 Aryloxy groups, substituted or unsubstituted C 6 -C 60 Arylthio groups, substituted or unsubstituted C 1 -C 60 Heteroaryl groups, substituted or unsubstituted monovalent non-aromatic condensed polycyclic groups, substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic groups, -Si(Q 301 )(Q 302 )(Q 303 ), -N(Q 301 )(Q 302 ), -B(Q 301 )(Q 302 ), -C(=O)(Q 301 ), -S(=O) 2 (Q 301 ), and -P(=O)(Q 301 )(Q 302 ), xb21 is selected from integers from 1 to 5; Q 301 ~Q 303 are independent of each other, C 1 -C 10 Alkyl group, C 1 -C 10 It may be selected from, but is not limited to, an alkoxy group, a phenyl group, a biphenylyl group, a terphenylyl group, and a naphthyl group.

[0151] According to one embodiment, Ar in formula 301 301 teeth, a naphthalene ring, a fluorene ring, a spiro-bifluorene ring, a benzofluorene ring, a dibenzofluorene ring, a phenalene ring, a phenanthrene ring, an anthracene ring, a fluoranthene ring, a triphenylene ring, a pyrene ring, a chrysene ring, a naphthacene ring, a picene ring, a perylene ring, a pentaphene ring, an indenoanthracene ring, a dibenzofuran ring, and a dibenzothiophene ring; and Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C 1 -C 20 Alkyl group, C 1 -C 20 Alkoxy group, phenyl group, biphenylyl group, terphenylyl group, naphthyl group, -Si(Q 31 )(Q 32 )(Q 33 ), -N(Q 31 )(Q 32 ), -B(Q 31 )(Q 32 ), -C(=O)(Q 31 ), -S(=O) 2 (Q 31 ) and -P(=O)(Q 31 )(Q 32 a naphthalene ring, a fluorene ring, a spiro-bifluorene ring, a benzofluorene ring, a dibenzofluorene ring, a phenalene ring, a phenanthrene ring, an anthracene ring, a fluoranthene ring, a triphenylene ring, a pyrene ring, a chrysene ring, a naphthacene ring, a picene ring, a perylene ring, a pentaphene ring, an indenoanthracene ring, a dibenzofuran ring and a dibenzothiophene ring; Q 31 ~Q 33 are independent of each other, C 1 -C 10 Alkyl group, C 1 -C 10 It may be selected from, but is not limited to, an alkoxy group, a phenyl group, a biphenylyl group, a terphenylyl group, and a naphthyl group.

[0152] In the chemical formula 301, when xb11 is 2 or more, 2 or more Ar 301 may be bonded to each other via a single bond.

[0153] According to other embodiments, the compound represented by formula 301 may be represented by formula 301-1 or formula 301-2 below. [ka] ...(chemical formula 301-1) [ka] ...(chemical formula 301-2)

[0154] In Chemical Formula 301-1 and Chemical Formula 301-2, A 301 ~A 304 are each independently selected from a benzene ring, a naphthalene ring, a phenanthrene ring, a fluoranthene ring, a triphenylene ring, a pyrene ring, a chrysene ring, a pyridine ring, a pyrimidine ring, an indene ring, a fluorene ring, a spiro-bifluorene ring, a benzofluorene ring, a dibenzofluorene ring, an indole ring, a carbazole ring, a benzocarbazole ring, a dibenzocarbazole ring, a furan ring, a benzofuran ring, a dibenzofuran ring, a naphthofuran ring, a benzonaphthofuran ring, a dinaphthofuran ring, a thiophene ring, a benzothiophene ring, a dibenzothiophene ring, a naphthothiophene ring, a benzonaphthothiophene ring and a dinaphthothiophene ring; X 301 is O, S or N-[(L 304 ) xb4 -R 304 ], R 311 ~R 314 are each independently hydrogen, deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, C 1 -C 20 Alkyl group, C 1 -C 20 Alkoxy group, phenyl group, biphenylyl group, terphenylyl group, naphthyl group, -Si(Q 31 )(Q 32 )(Q 33 ), -N(Q 31 )(Q 32 ), -B(Q 31 )(Q 32 ), -C(=O)(Q 31 ), -S(=O) 2 (Q 31 ) and -P(=O)(Q 31 )(Q 32 ), xb22 and xb23 are independently 0, 1 or 2; L 301 , xb1, R 301 , and Q 31 ~Q 33 For the description of L 302 ~L 304 The explanations for each are independent of each other and are given in the above L 301 Please refer to the explanation of For the explanation of xb2 to xb4, refer to the explanation of xb1 above, independently of each other. R 302 ~R 304 The explanations for are independent of each other and are described above in R 301 Please refer to the explanation about.

[0155] For example, in Chemical Formula 301, Chemical Formula 301-1, and Chemical Formula 301-2, L 301 ~L 304 are independent of each other, Phenylene group, naphthylene group, fluorenylene group, spiro-bifluorenylene group, benzofluorenylene group, dibenzofluorenylene group, phenanthrenylene group, anthracenylene group, fluoranthenylene group, triphenylenylene group, pyrenylene group, chrysenylene group, perylenylene group, pentaphenylene group, hexacenylene group, pentacenylene group, thiophenylene group, furanylene group, carbazolylene group, indolylene group, isoindolylene group, benzofuranylene group, benzothiophenylene group, dibenzofuranylene group, dibenzothiophenylene group, benzocarbazolylene group, dibenzocarbazolylene group, dibenzosilolylene group, pyridinylene group, imidazolylene group, pyrazolylene group, thiazolylene group , isothiazolylene groups, oxazolylene groups, isoxazolylene groups, thiadiazolylene groups, oxadiazolylene groups, pyrazinylene groups, pyrimidinylene groups, pyridazinylene groups, triazinylene groups, quinolinylene groups, isoquinolinylene groups, benzoquinolinylene groups, phthalazinylene groups, naphthyridinylene groups, quinoxalinylene groups, quinazolinylene groups, cinnolinylene groups, phenanthridinylene groups, acridinylene groups, phenanthrolinylene groups, phenazinylene groups, benzimidazolylene groups, isobenzothiazolylene groups, benzoxazolylene groups, isobenzoxazolylene groups, triazolylene groups, tetrazolylene groups, imidazopyridinylene groups, imidazopyrimidinylene groups, and azacarbazolylene groups; and Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C 1 -C 20 Alkyl group, C 1 -C 20 Alkoxy group, phenyl group, biphenylyl group, terphenylyl group, naphthyl group, fluorenyl group, spiro-bifluorenyl group, benzofluorenyl group, dibenzofluorenyl group, phenanthrenyl group, anthracenyl group, fluoranthenyl group, triphenylenyl group, pyrenyl group, chrysenyl group, perylenyl group, pentaphenyl group, hexacenyl group, pentacenyl group, thiophenyl group, furanyl group, carbazolyl group, indolyl group, isoindolyl group, benzofuranyl group, benzothiophenyl group, dibenzofuranyl group, dibenzothiophenyl group, benzocarbazolyl group, dibenzocarbazolyl group, dibenzosilolyl group, pyridinyl group, imidazolyl group, pyrazo -aryl group, thiazolyl group, isothiazolyl group, oxazolyl group, isoxazolyl group, thiadiazolyl group, oxadiazolyl group, pyrazinyl group, pyrimidinyl group, pyridazinyl group, triazinyl group, quinolinyl group, isoquinolinyl group, benzoquinolinyl group, phthalazinyl group, naphthyridinyl group, quinoxalinyl group, quinazolinyl group, cinnolinyl group, phenanthridinyl group, acridinyl group, phenanthrolinyl group, phenazinyl group, benzimidazolyl group, isobenzothiazolyl group, benzoxazolyl group, isobenzoxazolyl group, triazolyl group, tetrazolyl group, imidazopyridinyl group, imidazopyrimidinyl group, azacarbazolyl group, -Si(Q 31 )(Q 32 )(Q 33 ), -N(Q 31 )(Q 32 ), -B(Q 31 )(Q 32 ), -C(=O)(Q 31 ), -S(=O) 2 (Q 31 ) and -P(=O)(Q 31 )(Q 32 a phenylene group, a naphthylene group, a fluorenylene group, a spiro-bifluorenylene group, a benzofluorenylene group, a dibenzofluorenylene group, a phenanthrenylene group, an anthracenylene group, a fluoranthenylene group, a triphenylenylene group, a pyrenylene group, a chrysenylene group, a perylenylene group, a pentaphenylene group, a hexacenylene group, a pentacenylene group, a thiophenylene group, a furanylene group, a carbazolylene group, an indolylene group, an isoindolylene group, a benzofuranylene group, a benzothiophenylene group, a dibenzofuranylene group, a dibenzothiophenylene group, a benzocarbazolylene group, a dibenzocarbazolylene group, a dibenzosilolylene group, a pyridinylene group, an imidazolylene group, or a pyrazolylene group, a thiazolylene group, an isothiazolylene group, an oxazolylene group, an isoxazolylene group, a thiadiazolylene group, an oxadiazolylene group, a pyrazinylene group, a pyrimidinylene group, a pyridazinylene group, a triazinylene group, a quinolinylene group, an isoquinolinylene group, a benzoquinolinylene group, a phthalazinylene group, a naphthyridinylene group, a quinoxalinylene group, a quinazolinylene group, a cinnolinylene group, a phenanthridinylene group, an acridinylene group, a phenanthrolinylene group, a phenazinylene group, a benzimidazolylene group, an isobenzothiazolylene group, a benzoxazolylene group, an isobenzoxazolylene group, a triazolylene group, a tetrazolylene group, an imidazopyridinylene group, an imidazopyrimidinylene group, and an azacarbazolylene group; The aforementioned Q 31 ~Q 33 For an explanation of this, please refer to the description in this specification.

[0156] As another example, in the chemical formula 301, the chemical formula 301-1, and the chemical formula 301-2, R 301 ~R 304 are independent of each other, Phenyl, biphenylyl, terphenylyl, naphthyl, fluorenyl, spiro-bifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthrenyl, anthracenyl, fluoranthenyl, triphenylenyl, pyrenyl, chrysenyl, perylenyl, pentaphenyl, hexacenyl, pentacenyl, thiophenyl, furanyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothiophenyl, dibenzofuranyl, dibenzothiophenyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, pyridinyl, imidazolyl, pyrazolyl , thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, thiadiazolyl, oxadiazolyl, pyrazinyl, pyrimidinyl, pyridazinyl, triazinyl, quinolinyl, isoquinolinyl, benzoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, isobenzothiazolyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, imidazopyridinyl, imidazopyrimidinyl and azacarbazolyl groups; and Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C 1 -C 20 Alkyl group, C 1 -C 20 Alkoxy group, phenyl group, biphenylyl group, terphenylyl group, naphthyl group, fluorenyl group, spiro-bifluorenyl group, benzofluorenyl group, dibenzofluorenyl group, phenanthrenyl group, anthracenyl group, fluoranthenyl group, triphenylenyl group, pyrenyl group, chrysenyl group, perylenyl group, pentaphenyl group, hexacenyl group, pentacenyl group, thiophenyl group, furanyl group, carbazolyl group, indolyl group, isoindolyl group, benzofuranyl group, benzothiophenyl group, dibenzofuranyl group, dibenzothiophenyl group, benzocarbazolyl group, dibenzocarbazolyl group, dibenzosilolyl group, pyridinyl group, imidazolyl group, pyrazo -aryl group, thiazolyl group, isothiazolyl group, oxazolyl group, isoxazolyl group, thiadiazolyl group, oxadiazolyl group, pyrazinyl group, pyrimidinyl group, pyridazinyl group, triazinyl group, quinolinyl group, isoquinolinyl group, benzoquinolinyl group, phthalazinyl group, naphthyridinyl group, quinoxalinyl group, quinazolinyl group, cinnolinyl group, phenanthridinyl group, acridinyl group, phenanthrolinyl group, phenazinyl group, benzimidazolyl group, isobenzothiazolyl group, benzoxazolyl group, isobenzoxazolyl group, triazolyl group, tetrazolyl group, imidazopyridinyl group, imidazopyrimidinyl group, azacarbazolyl group, -Si(Q 31 )(Q 32 )(Q 33 ), -N(Q 31 )(Q 32 ), -B(Q 31 )(Q 32 ), -C(=O)(Q 31 ), -S(=O) 2 (Q 31 ) and -P(=O)(Q 31 )(Q 32 a phenyl group, a biphenylyl group, a terphenylyl group, a naphthyl group, a fluorenyl group, a spiro-bifluorenyl group, a benzofluorenyl group, a dibenzofluorenyl group, a phenanthrenyl group, an anthracenyl group, a fluoranthenyl group, a triphenylenyl group, a pyrenyl group, a chrysenyl group, a perylenyl group, a pentaphenyl group, a hexacenyl group, a pentacenyl group, a thiophenyl group, a furanyl group, a carbazolyl group, an indolyl group, an isoindolyl group, a benzofuranyl group, a benzothiophenyl group, a dibenzofuranyl group, a dibenzothiophenyl group, a benzocarbazolyl group, a dibenzocarbazolyl group, a dibenzosilolyl group, a pyridinyl group, an imidazolyl group, a pyrazolyl group, a thiazolyl group, an isothiazolyl group, an oxazolyl group, an isoxazolyl group, a thiadiazolyl group, an oxadiazolyl group, a pyrazinyl group, a pyrimidinyl group, a pyridazinyl group, a triazinyl group, a quinolinyl group, an isoquinolinyl group, a benzoquinolinyl group, a phthalazinyl group, a naphthyridinyl group, a quinoxalinyl group, a quinazolinyl group, a cinnolinyl group, a phenanthridinyl group, an acridinyl group, a phenanthrolinyl group, a phenazinyl group, a benzimidazolyl group, an isobenzothiazolyl group, a benzoxazolyl group, an isobenzoxazolyl group, a triazolyl group, a tetrazolyl group, an imidazopyridinyl group, an imidazopyrimidinyl group and an azacarbazolyl group; The aforementioned Q 31 ~Q 33 For an explanation of this, please refer to the description in this specification.

[0157] As yet another example, the host may include an alkaline earth metal complex, for example, the host may be selected from the group consisting of a Be complex (see, for example, compound H55 below), a Mg complex, and a Zn complex.

[0158] The host may include at least one selected from 9,10-di(2-naphthyl)anthracene (ADN), 2-methyl-9,10-bis(naphthalen-2-yl)anthracene (MADN), 9,10-di-(2-naphthyl)-2-t-butyl-anthracene (TBADN), 4,4'-bis(N-carbazolyl)-1,1'-biphenyl (CBP), 1,3-di-9-carbazolylbenzene (mCP), and the following compounds H1 to H55, but is not limited thereto. [ka] [ka] [ka] [ka] [ka] [ka] [ka]

[0159] [Phosphorescent dopants included in the light-emitting layer of organic layer 150] The phosphorescent dopant may include organometallic complexes represented by Formula 401 and Formula 402 below. M(L 401 ) xc1 (L 402 ) xc2 ...(chemical formula 401) [ka] ...(chemical formula 402)

[0160] In Chemical Formula 401 and Chemical Formula 402, M is selected from the group consisting of iridium (Ir), platinum (Pt), palladium (Pd), osmium (Os), titanium (Ti), zirconium (Zr), hafnium (Hf), europium (Eu), terbium (Tb), rhodium (Rh) and thulium (Tm); L 401 is selected from the ligands represented by chemical formula 402, xc1 is 1, 2 or 3, and when xc1 is 2 or more, 2 or more L 401 may be the same or different, L 402 is an organic ligand, xc2 is selected from an integer of 0 to 4, and when xc2 is 2 or more, 2 or more L 402 may be the same or different from each other, X 401 ~X 404 are, independently of each other, nitrogen or carbon; X 401 and X 403 may be bonded to each other via a single bond or a double bond, X 402 and X 404 may be bonded to each other via a single or double bond, A 401 and A 402 are independent of each other, C 5 -C 60 Hydrocarbon ring group or C 1 -C 60 is a heterocyclic group, X 405 is a single bond, *-O-*', *-S-*', *-C(=O)-*', *-N(Q 411 )-*', *-C(Q 411 )(Q 412 )-*', *-C(Q 411 )=C(Q 412 )-*', *-C(Q 411 )=*' or *=C=*', and the above Q 411 and Q 412 is hydrogen, deuterium, C 1 -C 20 Alkyl group, C 1 -C 20 an alkoxy group, a phenyl group, a biphenylyl group, a terphenylyl group, or a naphthyl group; X 406 is a single bond, O or S, R 401 and R 402 are each independently hydrogen, deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, a substituted or unsubstituted C 1 -C 20 Alkyl groups, substituted or unsubstituted C 1 -C 20 Alkoxy groups, substituted or unsubstituted C 3 -C 10 Cycloalkyl groups, substituted or unsubstituted C 1 -C 10 Heterocycloalkyl groups, substituted or unsubstituted C 3 -C 10 Cycloalkenyl groups, substituted or unsubstituted C 1 -C 10 Heterocycloalkenyl groups, substituted or unsubstituted C 6 -C 60 Aryl groups, substituted or unsubstituted C 6 -C 60 Aryloxy groups, substituted or unsubstituted C 6 -C 60 Arylthio groups, substituted or unsubstituted C 1 -C 60 Heteroaryl groups, substituted or unsubstituted monovalent non-aromatic condensed polycyclic groups, substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic groups, -Si(Q 401 )(Q 402 )(Q 403 ), -N(Q 401 )(Q 402 ), -B(Q 401 )(Q 402 ), -C(=O)(Q 401 ), -S(=O) 2 (Q 401 ), and -P(=O)(Q 401 )(Q 402 ) and the above Q 401 ~Q 403 are independent of each other, C 1 -C 10 Alkyl group, C 1 -C 10 Alkoxy group, C 6 -C 20 Aryl groups and C 1 -C 20 heteroaryl groups, xc11 and xc12 are each independently selected from an integer of 0 to 10; In chemical formula 402, * and *' are bonding positions to M in chemical formula 401.

[0161] According to one embodiment, in formula 402, A 401 and A 402 may be independently selected from among a benzene ring, a naphthalene ring, a fluorene ring, a spiro-bifluorene ring, an indene ring, a pyrrole ring, a thiophene ring, a furan ring, an imidazole ring, a pyrazole ring, a thiazole ring, an isothiazole ring, an oxazole ring, an isoxazole ring, a pyridine ring, a pyrazine ring, a pyrimidine ring, a pyridazine ring, a quinoline ring, an isoquinoline ring, a benzoquinoline ring, a quinoxaline ring, a quinazoline ring, a carbazole ring, a benzimidazole ring, a benzofuran ring, a benzothiophene ring, an isobenzothiophene ring, a benzoxazole ring, an isobenzoxazole ring, a triazole ring, a tetrazole ring, an oxadiazole ring, a triazine ring, a dibenzofuran ring, and a dibenzothiophene ring.

[0162] According to another embodiment, in formula 402, i) X 401 is nitrogen, and X 402 is carbon, or ii) X 401 and X 402 and may both be nitrogen.

[0163] According to yet another embodiment, in formula 402, R 401 and R 402 are independent of each other, Hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C 1 -C 20 Alkyl group and C 1 -C 20 Alkoxy groups; C substituted with at least one selected from the group consisting of deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, a phenyl group, a naphthyl group, a cyclopentyl group, a cyclohexyl group, an adamantyl group, a norbornanyl group, and a norbornenyl group; 1 -C 20 Alkyl group and C 1 -C 20 Alkoxy groups; cyclopentyl group, cyclohexyl group, adamantyl group, norbornanyl group, norbornenyl group, phenyl group, biphenylyl group, terphenylyl group, naphthyl group, fluorenyl group, pyridinyl group, pyrazinyl group, pyrimidinyl group, pyridazinyl group, triazinyl group, quinolinyl group, isoquinolinyl group, quinoxalinyl group, quinazolinyl group, carbazolyl group, dibenzofuranyl group and dibenzothiophenyl group; Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C 1 -C 20 Alkyl group, C 1 -C 20 selected from the group consisting of an alkoxy group, a cyclopentyl group, a cyclohexyl group, an adamantyl group, a norbornanyl group, a norbornenyl group, a phenyl group, a biphenylyl group, a terphenylyl group, a naphthyl group, a fluorenyl group, a pyridinyl group, a pyrazinyl group, a pyrimidinyl group, a pyridazinyl group, a triazinyl group, a quinolinyl group, an isoquinolinyl group, a quinoxalinyl group, a quinazolinyl group, a carbazolyl group, a dibenzofuranyl group, and a dibenzothiophenyl group cyclopentyl, cyclohexyl, adamantyl, norbornanyl, norbornenyl, phenyl, biphenylyl, terphenylyl, naphthyl, fluorenyl, pyridinyl, pyrazinyl, pyrimidinyl, pyridazinyl, triazinyl, quinolinyl, isoquinolinyl, quinoxalinyl, quinazolinyl, carbazolyl, dibenzofuranyl, and dibenzothiophenyl groups, each of which is substituted with at least one of the following: -Si(Q 401 )(Q 402 )(Q 403 ), -N(Q 401 )(Q 402 ), -B(Q 401 )(Q 402 ), -C(=O)(Q 401 ), -S(=O) 2 (Q 401 ) and -P(=O)(Q 401 )(Q 402 ); The aforementioned Q 401 ~Q 403 are independent of each other, C 1 -C 10 Alkyl group, C 1 -C 10 It may be selected from, but is not limited to, an alkoxy group, a phenyl group, a biphenylyl group, and a naphthyl group.

[0164] According to yet another embodiment, in formula 401, when xc1 is 2 or more, 2 or more L 401 In this case, two A 401 may optionally be linked to a linking group, X 407 or two A 402 may optionally be linked to a linking group, X 408 (See Compounds PD1 to PD4, and Compound PD7 below). 407 and X 408 are, independently of each other, a single bond, *-O-*', *-S-*', *-C(=O)-*', *-N(Q 413 )-*', *-C(Q 413 )(Q 414 )-*' or *-C(Q 413 )=C(Q 414 )-*'(where Q 413 and Q 414 are independently hydrogen, deuterium, and C 1 -C 20 Alkyl group, C 1 -C 20 The alkyl group may be, but is not limited to, an alkoxy group, a phenyl group, a biphenylyl group, a terphenylyl group, or a naphthyl group.

[0165] In the chemical formula 401, L 402 may be any monovalent, divalent or trivalent organic ligand. For example, L 402 may be selected from, but is not limited to, halogen, diketone (e.g., acetylacetonate), carboxylic acid (e.g., picolinate), -C(=O), isonitrile, -CN, and phosphoros (e.g., phosphine, phosphite).

[0166] The phosphorescent dopant may be selected from, for example, the following compounds PD1 to PD25, but is not limited thereto. [ka] [ka] [ka]

[0167] [Fluorescent dopants in the light-emitting layer] The fluorescent dopant may include an arylamine compound or a styrylamine compound.

[0168] The fluorescent dopant may include a compound represented by formula 501 below. [ka] ...(chemical formula 501)

[0169] In the chemical formula 501, Ar 501 is a substituted or unsubstituted C 5 -C 60 Hydrocarbon ring group or substituted or unsubstituted C 1 -C 60 is a heterocyclic group, L 501 ~L 503 are each independently a substituted or unsubstituted C 3 -C 10 Cycloalkylene group, substituted or unsubstituted C 1 -C 10 Heterocycloalkylene groups, substituted or unsubstituted C 3 -C 10 Cycloalkenylene group, substituted or unsubstituted C 1 -C 10 Heterocycloalkenylene group, substituted or unsubstituted C 6 -C 60 Arylene group, substituted or unsubstituted C 1 -C 60 is selected from the group consisting of a heteroarylene group, a substituted or unsubstituted divalent non-aromatic condensed polycyclic group, and a substituted or unsubstituted divalent non-aromatic condensed polycyclic heterocyclic group; xd1 to xd3 are each independently selected from integers of 0 to 3. When xd1 to xd3 are 0, L 501 ~L 503 is a single bond, R 501 and R 502 are each independently a substituted or unsubstituted C 3 -C 10 Cycloalkyl groups, substituted or unsubstituted C 1 -C 10 Heterocycloalkyl groups, substituted or unsubstituted C 3 -C 10 Cycloalkenyl groups, substituted or unsubstituted C 1 -C 10 Heterocycloalkenyl groups, substituted or unsubstituted C 6 -C 60 Aryl groups, substituted or unsubstituted C 6 -C 60 Aryloxy groups, substituted or unsubstituted C 6 -C 60 Arylthio groups, substituted or unsubstituted C 1 -C 60 is selected from the group consisting of a heteroaryl group, a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, and a substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group; xd4 is selected from integers from 1 to 6.

[0170] In one embodiment, the Ar 501 teeth, a naphthalene ring, a heptalene ring, a fluorene ring, a spiro-bifluorene ring, a benzofluorene ring, a dibenzofluorene ring, a phenalene ring, a phenanthrene ring, an anthracene ring, a fluoranthene ring, a triphenylene ring, a pyrene ring, a chrysene ring, a naphthacene ring, a picene ring, a perylene ring, a pentaphene ring, an indenoanthracene ring, and an indenophenanthrene ring; and Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C 1 -C 20 Alkyl group, C 1 -C 20 may be selected from the group consisting of a naphthalene ring, a heptalene ring, a fluorene ring, a spiro-bifluorene ring, a benzofluorene ring, a dibenzofluorene ring, a phenalene ring, a phenanthrene ring, an anthracene ring, a fluoranthene ring, a triphenylene ring, a pyrene ring, a chrysene ring, a naphthacene ring, a picene ring, a perylene ring, a pentaphene ring, an indenoanthracene ring, and an indenophenanthrene ring, each of which is substituted with at least one selected from the group consisting of an alkoxy group, a phenyl group, a biphenylyl group, a terphenylyl group, and a naphthyl group.

[0171] In another embodiment, in formula 501, L 501 ~L 503 are independent of each other, phenylene groups, naphthylene groups, fluorenylene groups, spiro-bifluorenylene groups, benzofluorenylene groups, dibenzofluorenylene groups, phenanthrenylene groups, anthracenylene groups, fluoranthenylene groups, triphenylenylene groups, pyrenylene groups, chrysenylene groups, perylenylene groups, pentaphenylene groups, hexacenylene groups, pentacenylene groups, thiophenylene groups, furanylene groups, carbazolylene groups, indolylene groups, isoindolylene groups, benzofuranylene groups, benzothiophenylene groups, dibenzofuranylene groups, dibenzothiophenylene groups, benzocarbazolylene groups, dibenzocarbazolylene groups, dibenzosilolylene groups, pyridinylene groups; and Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C 1 -C 20 Alkyl group, C 1 -C 20 alkoxy group, phenyl group, biphenylyl group, terphenylyl group, naphthyl group, fluorenyl group, spiro-bifluorenyl group, benzofluorenyl group, dibenzofluorenyl group, phenanthrenyl group, anthracenyl group, fluoranthenyl group, triphenylenyl group, pyrenyl group, chrysenyl group, perylenyl group, pentaphenyl group, hexacenyl group, pentacenyl group, thiophenyl group, furanyl group, carbazolyl group, indolyl group, isoindolyl group, benzofuranyl group, benzothiophenyl group, dibenzofuranyl group, dibenzothiophenyl group, benzocarbazolyl group, dibenzocarbazolyl group, dibenzosilolyl group and pyridinyl group. a phenylene group, a naphthylene group, a fluorenylene group, a spiro-bifluorenylene group, a benzofluorenylene group, a dibenzofluorenylene group, a phenanthrenylene group, an anthracenylene group, a fluoranthenylene group, a triphenylenylene group, a pyrenylene group, a chrysenylene group, a perylenylene group, a pentaphenylene group, a hexacenylene group, a pentacenylene group, a thiophenylene group, a furanylene group, a carbazolylene group, an indolylene group, an isoindolylene group, a benzofuranylene group, a benzothiophenylene group, a dibenzofuranylene group, a dibenzothiophenylene group, a benzocarbazolylene group, a dibenzocarbazolylene group, a dibenzosilolylene group, a pyridinylene group;

[0172] In yet another embodiment, R 501 and R 502 are independent of each other, phenyl, biphenylyl, terphenylyl, naphthyl, fluorenyl, spiro-bifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthrenyl, anthracenyl, fluoranthenyl, triphenylenyl, pyrenyl, chrysenyl, perylenyl, pentaphenyl, hexacenyl, pentacenyl, thiophenyl, furanyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothiophenyl, dibenzofuranyl, dibenzothiophenyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl and pyridinyl groups; and Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C 1 -C 20 Alkyl group, C 1 -C 20 Alkoxy groups, phenyl groups, biphenylyl groups, terphenylyl groups, naphthyl groups, fluorenyl groups, spiro-bifluorenyl groups, benzofluorenyl groups, dibenzofluorenyl groups, phenanthrenyl groups, anthracenyl groups, fluoranthenyl groups, triphenylenyl groups, pyrenyl groups, chrysenyl groups, perylenyl groups, pentaphenyl groups, hexacenyl groups, pentacenyl groups, thiophenyl groups, furanyl groups, carbazolyl groups, indolyl groups, isoindolyl groups, benzofuranyl groups, benzothiophenyl groups, dibenzofuranyl groups, dibenzothiophenyl groups, benzocarbazolyl groups, dibenzocarbazolyl groups, dibenzosilolyl groups, pyridinyl groups and -Si(Q 31 )(Q 32 )(Q 33 phenyl, biphenylyl, terphenylyl, naphthyl, fluorenyl, spiro-bifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthrenyl, anthracenyl, fluoranthenyl, triphenylenyl, pyrenyl, chrysenyl, perylenyl, pentaphenyl, hexacenyl, pentacenyl, thiophenyl, furanyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothiophenyl, dibenzofuranyl, dibenzothiophenyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl and pyridinyl groups, The aforementioned Q 31 ~Q 33 is C 1 -C 10 Alkyl group, C 1 -C 10 It may be selected from the group consisting of alkoxy, phenyl, biphenylyl, terphenylyl and naphthyl groups.

[0173] According to yet another embodiment, xd4 in chemical formula 501 may be 2, but is not limited thereto.

[0174] For example, the fluorescent dopant may be selected from among the following compounds FD1 to FD22. [ka] [ka] [ka] [ka] [ka] [ka] [ka] [ka] [ka]

[0175] Alternatively, the fluorescent dopant may be selected from the following compounds, but is not limited thereto: [ka] [ka]

[0176] [Quantum dots in the light-emitting layer] Quantum dots may be nanoparticles made of II-VI, III-V or IV-VI compounds.

[0177] The IV-VI compound may be selected from the group consisting of a binary compound selected from the group consisting of SnS, SnSe, SnTe, PbS, PbSe, PbTe, and mixtures thereof; a ternary compound selected from the group consisting of SnSeS, SnSeTe, SnSTe, PbSeS, PbSeTe, PbSTe, SnPbS, SnPbSe, SnPbTe, and mixtures thereof; and a quaternary compound selected from the group consisting of SnPbSSe, SnPbSeTe, SnPbSTe, and mixtures thereof. The IV element may be selected from the group consisting of Si, Ge, and mixtures thereof. The IV compound may be a binary compound selected from the group consisting of SiC, SiGe, and mixtures thereof.

[0178] In this case, the two-element compound, the three-element compound, or the four-element compound may be present in the particle at a uniform concentration, or may be present in the same particle with the concentration distribution being divided into partially different states. Also, the quantum dot may have a core / shell structure in which one quantum dot surrounds another quantum dot. The interface between the core and the shell may have a concentration gradient in which the concentration of the element present in the shell decreases toward the center.

[0179] In some embodiments, the quantum dots may have a core-shell structure including a core containing the nanocrystals described above and a shell surrounding the core. The shell of the quantum dot may act as a protective layer to prevent chemical denaturation of the core and maintain the semiconductor properties, and / or as a charging layer to impart electrophoretic properties to the quantum dot. The shell may be a single layer or multiple layers. The interface between the core and the shell may have a concentration gradient in which the concentration of the elements present in the shell decreases toward the center. Examples of the shell of the quantum dot may include oxides of metals or nonmetals, semiconductor compounds, or combinations thereof.

[0180] For example, the oxide of the metal or nonmetal mentioned above may be SiO 2 , Al 2 O 3 , TiO 2 , ZnO, MnO, Mn 2 O 3 , Mn 3 O 4 , CuO, FeO, Fe 2 O 3 , Fe 3 O 4 , CoO, Co 3 O 4 , binary compounds such as NiO, or MgAl 2 O 4 , CoFe 2 O 4 , NiFe 2 O 4 , CoMn 2 O 4 However, the present invention is not limited to these.

[0181] Examples of semiconductor compounds include CdS, CdSe, CdTe, ZnS, ZnSe, ZnTe, ZnSeS, ZnTeS, GaAs, GaP, GaSb, HgS, HgSe, HgTe, InAs, InP, InGaP, InSb, AlAs, AlP, and AlSb, but the present invention is not limited to these.

[0182] The quantum dots can have a full width of half maximum (FWHM) of the emission wavelength spectrum of about 45 nm or less, preferably about 40 nm or less, and more preferably about 30 nm or less, and in that range, color purity and color reproducibility can be improved. Furthermore, the light emitted through such quantum dots is emitted in all directions, improving the light viewing angle.

[0183] Furthermore, the shape of the quantum dots is not particularly limited to those commonly used in the art, and more specifically, shapes such as spherical, pyramidal, multi-arm or cubic nanoparticles, nanotubes, nanowires, nanofibers, and nanoplate-shaped particles can be used.

[0184] The quantum dots can adjust the hue of the emitted light depending on the particle size, so that the quantum dots can have various emission hues such as blue, red, and green.

[0185] [Electron transport region in organic layer 150] The electron transport region can have i) a monolayer structure consisting of a single layer of a single material, ii) a monolayer structure consisting of a single layer of multiple different materials, or iii) a multilayer structure having multiple layers consisting of multiple different materials.

[0186] The electron transport region may include, but is not limited to, at least one layer selected from a buffer layer, a hole blocking layer, an electron modulating layer, an electron transport layer (ETL), and an electron injection layer.

[0187] For example, the electron transport region may have a structure such as, but not limited to, an electron transport layer / electron injection layer, a hole blocking layer / electron transport layer / electron injection layer, an electron control layer / electron transport layer / electron injection layer, or a buffer layer / electron transport layer / electron injection layer, which are stacked in this order from the light emitting layer.

[0188] The electron transport region (eg, a buffer layer, a hole blocking layer, an electron modulating layer, or an electron transport layer in an electron transport region) may include a non-metal-containing compound that includes at least one π-electron deficient nitrogen-containing ring.

[0189] A "π-electron deficient nitrogen-containing ring" is a ring-forming partial structure having at least one *-N=*' partial structure. 1 -C 60 It means a heterocyclic group.

[0190] For example, the "π-electron deficient nitrogen-containing ring" is i) a 5- to 7-membered heteromonocyclic group having at least one *-N=*' partial structure, ii) a heteropolycyclic group in which two or more of the 5- to 7-membered heteromonocyclic groups having at least one *-N=*' partial structure are condensed with each other, or iii) at least one of the 5- to 7-membered heteromonocyclic groups having at least one *-N=*' partial structure and at least one C 5 -C 60 It may also be a heteropolycyclic group in which the hydrocarbon ring groups are condensed with each other.

[0191] Specific examples of the π-electron deficient nitrogen-containing ring include, but are not limited to, imidazole, pyrazole, thiazole, isothiazole, oxazole, isoxazole, pyridine, pyrazine, pyrimidine, pyridazine, indazole, purine, quinoline, isoquinoline, benzoquinoline, phthalazine, naphthyridine, quinoxaline, quinazoline, cinnoline, phenanthridine, acridine, phenanthroline, phenazine, benzimidazole, isobenzothiazole, benzoxazole, isobenzoxazole, triazole, tetrazole, oxadiazole, triazine, thiadiazole, imidazopyridine, imidazopyrimidine, and azacarbazole.

[0192] For example, the electron transport region may include a compound represented by formula 601 below. [Ar 601 ] xe11 -[(L 601 ) xe1 -R 601 ] xe21 ...(chemical formula 601)

[0193] In the chemical formula 601, Ar 601 is a substituted or unsubstituted C 5 -C 60 Hydrocarbon ring group or substituted or unsubstituted C 1 -C 60 is a heterocyclic group, xe11 is 1, 2 or 3, L 601 is a substituted or unsubstituted C 3 -C 10 Cycloalkylene group, substituted or unsubstituted C 1 -C 10 Heterocycloalkylene groups, substituted or unsubstituted C 3 -C 10 Cycloalkenylene group, substituted or unsubstituted C 1 -C 10 Heterocycloalkenylene group, substituted or unsubstituted C 6 -C 60 Arylene group, substituted or unsubstituted C 1 -C 60 is selected from the group consisting of a heteroarylene group, a substituted or unsubstituted divalent non-aromatic condensed polycyclic group, and a substituted or unsubstituted divalent non-aromatic condensed polycyclic heterocyclic group; xe1 is selected from integers 0 to 5. If xe1 is 0, L 601 is a single bond, R 601 is a substituted or unsubstituted C 3 -C 10 Cycloalkyl groups, substituted or unsubstituted C 1 -C 10 Heterocycloalkyl groups, substituted or unsubstituted C 3 -C 10 Cycloalkenyl groups, substituted or unsubstituted C 1 -C 10 Heterocycloalkenyl groups, substituted or unsubstituted C 6 -C 60 Aryl groups, substituted or unsubstituted C 6 -C 60 Aryloxy groups, substituted or unsubstituted C 6 -C 60 Arylthio groups, substituted or unsubstituted C 1 -C 60 Heteroaryl groups, substituted or unsubstituted monovalent non-aromatic condensed polycyclic groups, substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic groups, -Si(Q 601 )(Q 602 )(Q 603 ), -C(=O)(Q 601 ), -S(=O) 2 (Q 601 ), and -P(=O)(Q 601 )(Q 602 ), The aforementioned Q 601 ~Q 603 are independent of each other, C 1 -C 10 Alkyl group, C 1 -C 10 an alkoxy group, a phenyl group, a biphenylyl group, a terphenylyl group, or a naphthyl group; xe21 is selected from integers of 1 to 5.

[0194] According to one embodiment, xe11 Ar 601 , and xe21 R 601 At least one of the above may contain a π-electron deficient nitrogen-containing ring as described above.

[0195] According to one embodiment, Ar in formula 601 601 teeth, Benzene ring, naphthalene ring, fluorene ring, spiro-bifluorene ring, benzofluorene ring, dibenzofluorene ring, phenalene ring, phenanthrene ring, anthracene ring, fluoranthene ring, triphenylene ring, pyrene ring, chrysene ring, naphthacene ring, picene ring, perylene ring, pentaphene ring, indenoanthracene ring, dibenzofuran ring, dibenzothiophene ring, carbazole ring, imidazole ring, pyrazole ring, thiazole ring, isothiazole ring, oxazole ring, isoxazole ring, pyridine ring, pyrazine ring, pyrimidine ring , a pyridazine ring, an indazole ring, a purine ring, a quinoline ring, an isoquinoline ring, a benzoquinoline ring, a phthalazine ring, a naphthyridine ring, a quinoxaline ring, a quinazoline ring, a cinnoline ring, a phenanthridine ring, an acridine ring, a phenanthroline ring, a phenazine ring, a benzimidazole ring, an isobenzothiazole ring, a benzoxazole ring, an isobenzoxazole ring, a triazole ring, a tetrazole ring, an oxadiazole ring, a triazine ring, a thiadiazole ring, an imidazopyridine ring, an imidazopyrimidine ring and an azacarbazole ring; and Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C 1 -C 20 Alkyl group, C 1 -C 20 Alkoxy group, phenyl group, biphenylyl group, terphenylyl group, naphthyl group, -Si(Q 31 )(Q 32 )(Q 33 ), -S(=O) 2 (Q 31 ) and -P(=O)(Q 31 )(Q 32 a benzene ring, a naphthalene ring, a fluorene ring, a spiro-bifluorene ring, a benzofluorene ring, a dibenzofluorene ring, a phenalene ring, a phenanthrene ring, an anthracene ring, a fluoranthene ring, a triphenylene ring, a pyrene ring, a chrysene ring, a naphthacene ring, a picene ring, a perylene ring, a pentaphene ring, an indenoanthracene ring, a dibenzofuran ring, a dibenzothiophene ring, a carbazole ring, an imidazole ring, a pyrazole ring, a thiazole ring, an isothiazole ring, an oxazole ring, an isoxazole ring, a pyridine ring, or a pyrazine ring, , a pyrimidine ring, a pyridazine ring, an indazole ring, a purine ring, a quinoline ring, an isoquinoline ring, a benzoquinoline ring, a phthalazine ring, a naphthyridine ring, a quinoxaline ring, a quinazoline ring, a cinnoline ring, a phenanthridine ring, an acridine ring, a phenanthroline ring, a phenazine ring, a benzimidazole ring, an isobenzothiazole ring, a benzoxazole ring, an isobenzoxazole ring, a triazole ring, a tetrazole ring, an oxadiazole ring, a triazine ring, a thiadiazole ring, an imidazopyridine ring, an imidazopyrimidine ring and an azacarbazole ring; The aforementioned Q 31 ~Q 33 are independent of each other, C 1 -C 10 Alkyl group, C 1 -C 10 It may be selected from the group consisting of alkoxy, phenyl, biphenylyl, terphenylyl and naphthyl groups.

[0196] In the chemical formula 601, when xe11 is 2 or more, 2 or more Ar 601 may be bonded to each other via a single bond.

[0197] According to another embodiment, Ar in formula 601 601 may be an anthracene ring.

[0198] According to yet another embodiment, the compound represented by formula 601 may be represented by formula 601-1 below: [ka] ...(chemical formula 601-1)

[0199] In the chemical formula 601-1, X 614 is N or C(R 614 ), and X 615 is N or C(R 615 ), and X 616 is N or C(R 616 ), and X 614 ~X 616 At least one of is N, L 611 ~L 613 are, independently of each other, the aforementioned L 601 Please refer to the explanation of xe611 to xe613 are independent of each other, refer to the explanation of xe1 above, R 611 ~R 613 are independent of each other, 601 Please refer to the explanation of R 614 ~R 616 are each independently hydrogen, deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, C 1 -C 20 Alkyl group, C 1 -C 20 It may be selected from the group consisting of alkoxy, phenyl, biphenylyl, terphenylyl and naphthyl groups.

[0200] According to one embodiment, in formula 601 and formula 601-1, L 601 , and L 611 ~L 613 are independent of each other, Phenylene group, naphthylene group, fluorenylene group, spiro-bifluorenylene group, benzofluorenylene group, dibenzofluorenylene group, phenanthrenylene group, anthracenylene group, fluoranthenylene group, triphenylenylene group, pyrenylene group, chrysenylene group, perylenylene group, pentaphenylene group, hexacenylene group, pentacenylene group, thiophenylene group, furanylene group, carbazolylene group, indolylene group, isoindolylene group, benzofuranylene group, benzothiophenylene group, dibenzofuranylene group, dibenzothiophenylene group, benzocarbazolylene group, dibenzocarbazolylene group, dibenzosilolylene group, pyridinylene group, imidazolylene group, pyrazolylene group, thiazolylene group , isothiazolylene groups, oxazolylene groups, isoxazolylene groups, thiadiazolylene groups, oxadiazolylene groups, pyrazinylene groups, pyrimidinylene groups, pyridazinylene groups, triazinylene groups, quinolinylene groups, isoquinolinylene groups, benzoquinolinylene groups, phthalazinylene groups, naphthyridinylene groups, quinoxalinylene groups, quinazolinylene groups, cinnolinylene groups, phenanthridinylene groups, acridinylene groups, phenanthrolinylene groups, phenazinylene groups, benzimidazolylene groups, isobenzothiazolylene groups, benzoxazolylene groups, isobenzoxazolylene groups, triazolylene groups, tetrazolylene groups, imidazopyridinylene groups, imidazopyrimidinylene groups, and azacarbazolylene groups; and Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C 1 -C 20 Alkyl group, C 1 -C 20 Alkoxy group, phenyl group, biphenylyl group, terphenylyl group, naphthyl group, fluorenyl group, spiro-bifluorenyl group, benzofluorenyl group, dibenzofluorenyl group, phenanthrenyl group, anthracenyl group, fluoranthenyl group, triphenylenyl group, pyrenyl group, chrysenyl group, perylenyl group, pentaphenyl group, hexacenyl group, pentacenyl group, thiophenyl group, furanyl group, carbazolyl group, indolyl group, isoindolyl group, benzofuranyl group, benzothiophenyl group, dibenzofuranyl group, dibenzothiophenyl group, benzocarbazolyl group, bazolyl group, dibenzocarbazolyl group, dibenzosilolyl group, pyridinyl group, imidazolyl group, pyrazolyl group, thiazolyl group, isothiazolyl group, oxazolyl group, isoxazolyl group, thiadiazolyl group, oxadiazolyl group, pyrazinyl group, pyrimidinyl group, pyridazinyl group, triazinyl group, quinolinyl group, isoquinolinyl group, benzoquinolinyl group, phthalazinyl group, naphthyridinyl group, quinoxalinyl group, quinazolinyl group, cinnolinyl group, phenanthridinyl group, acridinyl group, phenanthrolinyl group, phenazinyl group, benzimidazolyl group , a phenylene group, a naphthylene group, a fluorenylene group, a spiro-bifluorenylene group, a benzofluorenylene group, a dibenzofluorenylene group, a phenanthrenylene group, an anthracenylene group, a fluoranthenylene group, a triphenylenylene group, a pyrenylene group, a chrysenylene group, a perylenylene group, a pentaphenylene group, a hexa ... a sacenylene group, a pentacenylene group, a thiophenylene group, a furanylene group, a carbazolylene group, an indolylene group, an isoindolylene group, a benzofuranylene group, a benzothiophenylene group, a dibenzofuranylene group, a dibenzothiophenylene group, a benzocarbazolylene group, a dibenzocarbazolylene group, a dibenzosilolylene group, a pyridinylene group, an imidazolylene group, a pyrazolylene group, a thiazolylene group, an isothiazolylene group, an oxazolylene group, an isoxazolylene group, a thiadiazolylene group, an oxadiazolylene group, a pyrazinylene group, a pyrimidinylene group, a pyridazinylene group,triazinylene group, quinolinylene group, isoquinolinylene group, benzoquinolinylene group, phthalazinylene group, naphthyridinylene group, quinoxalinylene group, quinazolinylene group, cinnolinylene group, phenanthridinylene group, acridinylene group, phenanthrolinylene group, phenazinylene group, benzimidazolylene group, isobenzothiazolylene group, benzoxazolylene group, isobenzoxazolylene group, triazolylene group, tetrazolylene group, imidazopyridinylene group, imidazopyrimidinylene group and azacarbazolylene group, but are not limited thereto.

[0201] According to another embodiment, in the chemical formula 601 and the chemical formula 601-1, xe1 and xe611 to xe613 are each independently 0, 1, or 2. When xe1 and xe611 to xe613 are 0, L 601 ,L 611 ~L 613 is a single bond.

[0202] According to yet another embodiment, in formula 601 and formula 601-1, R 601 , and R 611 ~R 613 are independent of each other, Phenyl, biphenylyl, terphenylyl, naphthyl, fluorenyl, spiro-bifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthrenyl, anthracenyl, fluoranthenyl, triphenylenyl, pyrenyl, chrysenyl, perylenyl, pentaphenyl, hexacenyl, pentacenyl, thiophenyl, furanyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothiophenyl, dibenzofuranyl, dibenzothiophenyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, pyridinyl, imidazolyl, pyrazolyl a thiazolyl group, an isothiazolyl group, an oxazolyl group, an isoxazolyl group, a thiadiazolyl group, an oxadiazolyl group, a pyrazinyl group, a pyrimidinyl group, a pyridazinyl group, a triazinyl group, a quinolinyl group, an isoquinolinyl group, a benzoquinolinyl group, a phthalazinyl group, a naphthyridinyl group, a quinoxalinyl group, a quinazolinyl group, a cinnolinyl group, a phenanthridinyl group, an acridinyl group, a phenanthrolinyl group, a phenazinyl group, a benzimidazolyl group, an isobenzothiazolyl group, a benzoxazolyl group, an isobenzoxazolyl group, a triazolyl group, a tetrazolyl group, an imidazopyridinyl group, an imidazopyrimidinyl group, and an azacarbazolyl group; Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C 1 -C 20 Alkyl group, C 1 -C 20 Alkoxy group, phenyl group, biphenylyl group, terphenylyl group, naphthyl group, fluorenyl group, spiro-bifluorenyl group, benzofluorenyl group, dibenzofluorenyl group, phenanthrenyl group, anthracenyl group, fluoranthenyl group, triphenylenyl group, pyrenyl group, chrysenyl group, perylenyl group, pentaphenyl group, hexacenyl group, pentacenyl group, thiophenyl group, furanyl group, carbazolyl group, indolyl group, isoindolyl group, benzofuranyl group, benzothiophenyl group, dibenzofuranyl group, dibenzothiophenyl group, benzocarbazolyl group, a zolyl group, a dibenzocarbazolyl group, a dibenzosilolyl group, a pyridinyl group, an imidazolyl group, a pyrazolyl group, a thiazolyl group, an isothiazolyl group, an oxazolyl group, an isoxazolyl group, a thiadiazolyl group, an oxadiazolyl group, a pyrazinyl group, a pyrimidinyl group, a pyridazinyl group, a triazinyl group, a quinolinyl group, an isoquinolinyl group, a benzoquinolinyl group, a phthalazinyl group, a naphthyridinyl group, a quinoxalinyl group, a quinazolinyl group, a cinnolinyl group, a phenanthridinyl group, an acridinyl group, a phenanthrolinyl group, a phenazinyl group, a benzimidazolyl group, a phenyl group, a biphenylyl group, a terphenylyl group, a naphthyl group, a fluorenyl group, a spiro-bifluorenyl group, a benzofluorenyl group, a dibenzofluorenyl group, a phenanthrenyl group, an anthracenyl group, a fluoranthenyl group, a triphenylenyl group, a pyrenyl group, a chrysenyl group, a perylenyl group, or a pentaphenyl group, each of which is substituted with at least one selected from an isobenzothiazolyl group, a benzoxazolyl group, an isobenzoxazolyl group, a triazolyl group, a triazolyl group, a tetrazolyl group, an imidazopyridinyl group, an imidazopyrimidinyl group, and an azacarbazolyl group; a hexacenyl group, a pentacenyl group, a thiophenyl group, a furanyl group, a carbazolyl group, an indolyl group, an isoindolyl group, a benzofuranyl group, a benzothiophenyl group, a dibenzofuranyl group, a dibenzothiophenyl group, a benzocarbazolyl group, a dibenzocarbazolyl group, a dibenzosilolyl group, a pyridinyl group, an imidazolyl group, a pyrazolyl group, a thiazolyl group, an isothiazolyl group, an oxazolyl group, an isoxazolyl group, a thiadiazolyl group, an oxadiazolyl group, a pyrazinyl group, a pyrimidinyl group, a pyridazinyl group, a triazinyl group, a quinolinyl group, an isoquinolinyl group,benzoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, isobenzothiazolyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, imidazopyridinyl, imidazopyrimidinyl and azacarbazolyl groups; and -S(=O) 2 (Q 601 ) and -P(=O)(Q 601 )(Q 602 ); The aforementioned Q 601 and Q 602 For the explanation of the above, please refer to the description in this specification.

[0203] The electron transport region may contain at least one compound selected from the following compounds ET1 to ET36, but is not limited thereto. [ka] [ka] [ka] [ka] [ka] [ka] [ka] [ka] [ka] [ka] [ka] [ka]

[0204] Alternatively, the electron transport region may include at least one compound selected from 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline (BCP), 4,7-diphenyl-1,10-phenanthroline (Bphen), Alq3, BAlq, 3-(biphenyl-4-yl)-5-(4-tert-butylphenyl)-4-phenyl-4H-1,2,4-triazole (TAZ), and NTAZ. [ka]

[0205] The thickness of the buffer layer, hole blocking layer, or electron control layer may be about 2 nm to about 100 nm, for example, about 3 nm to about 30 nm, independently of each other. When the thickness of the buffer layer, hole blocking layer, or electron control layer satisfies the above-mentioned range, excellent hole blocking properties or electron control properties can be obtained without a substantial increase in driving voltage.

[0206] The thickness of the electron transport layer may be about 10 nm to about 100 nm, for example, about 15 nm to about 50 nm. When the thickness of the electron transport layer satisfies the above-mentioned range, excellent electron transport properties can be obtained without a substantial increase in driving voltage.

[0207] The electron transport region (eg, an electron transport layer in an electron transport region) may further include a metal-containing material in addition to the materials described above.

[0208] The metal-containing material may include at least one selected from an alkali metal complex and an alkaline earth metal complex. The metal ion of the alkali metal complex may be selected from a Li ion, a Na ion, a K ion, a Rb ion, and a Cs ion, and the metal ion of the alkaline earth metal complex may be selected from a Be ion, a Mg ion, a Ca ion, a Sr ion, and a Ba ion. The ligands coordinated to the metal ions of the alkali metal complex and the alkaline earth metal complex may be independently selected from, but are not limited to, hydroxyquinoline, hydroxyisoquinoline, hydroxybenzoquinoline, hydroxyacridine, hydroxyphenanthridine, hydroxyphenyloxazole, hydroxyphenylthiazole, hydroxydiphenyloxadiazole, hydroxydiphenylthiadiazole, hydroxyphenylpyridine, hydroxyphenylbenzimidazole, hydroxyphenylbenzothiazole, bipyridine, phenanthroline, and cyclopentadiene.

[0209] For example, the metal-containing material may include a Li complex. The Li complex may include, for example, the following compound ET-D1 (lithium quinolate (LiQ)) or the following compound ET-D2. [ka]

[0210] The electron transport region may include an electron injection layer that facilitates electron injection from the second electrode 190. The electron injection layer may be in direct contact with the second electrode 190.

[0211] The electron injection layer can have i) a single layer structure consisting of a single layer made of a single material, ii) a single layer structure consisting of single layers made of a plurality of different materials, or iii) a multilayer structure having a plurality of layers made of a plurality of different materials.

[0212] The electron injection layer may comprise an alkali metal, an alkaline earth metal, a rare earth metal, an alkali metal compound, an alkaline earth metal compound, a rare earth metal compound, an alkali metal complex, an alkaline earth metal complex, a rare earth metal complex, or any combination thereof.

[0213] The alkali metal may be selected from Li, Na, K, Rb, and Cs. In one embodiment, the alkali metal is Li, Na, or Cs. In another embodiment, the alkali metal is, but is not limited to, Li or Cs.

[0214] The alkaline earth metal may be selected from Mg, Ca, Sr and Ba.

[0215] The rare earth metal may be selected from Sc, Y, Ce, Tb, Yb and Gd.

[0216] The alkali metal compounds, alkaline earth metal compounds and rare earth metal compounds may be selected from oxides and halides (e.g., fluorides, chlorides, bromides, iodides, etc.) of the alkali metals, the alkaline earth metals and the rare earth metals.

[0217] Alkali metal compounds include Li 2 O, Cs 2 OK 2 The alkali metal compound may be selected from the group consisting of alkali metal oxides such as LiF, LiO, and alkali metal halides such as LiF, NaF, CsF, KF, LiI, NaI, CsI, KI. According to one embodiment, the alkali metal compound is LiF, Li 2 The oxide may be selected from, but is not limited to, O, NaF, LiI, NaI, CsI, and KI.

[0218] Alkaline earth metal compounds are BaO, SrO, CaO, Ba x Sr 1-x O(0 <x<1)、Ba x Ca 1-x It may be selected from alkaline earth metal compounds such as O(0 < x < 1). According to one embodiment, the alkaline earth metal compound may be selected from, but not limited to, BaO, SrO, and CaO.

[0219] The rare earth metal compound is YbF 3 , ScF 3 , Sc 2 O 3 , Y 2 O 3 , Ce 2 O 3 , GdF 3 and TbF 3 It may be selected from. According to one embodiment, the rare earth metal compound may be selected from, but not limited to, YbF 3 , ScF 3 , TbF 3 , YbI 3 , ScI 3 , TbI 3 It may be selected from, but not limited to, these.

[0220] The aforementioned alkali metal complex, alkaline earth metal complex, and rare earth metal complex contain metal ions of the aforementioned alkali metal, alkaline earth metal, and rare earth metal, and the ligands coordinated to the metal ions of the aforementioned alkali metal complex, alkaline earth metal complex, and rare earth metal complex may be independently selected from, but not limited to, hydroxyquinoline, hydroxyisoquinoline, hydroxybenzoquinoline, hydroxyacridine, hydroxyphenanthridine, hydroxyphenyloxazole, hydroxyphenylthiazole, hydroxydiphenyloxadiazole, hydroxydiphenylthiadiazole, hydroxyphenylpyridine, hydroxyphenylbenzimidazole, hydroxyphenylbenzothiazole, bipyridine, phenanthroline, and cyclopentadiene.

[0221] The electron injection layer may be composed only of the above-mentioned alkali metal, alkaline earth metal, rare earth metal, alkali metal compound, alkaline earth metal compound, rare earth metal compound, alkali metal complex, alkaline earth metal complex, rare earth metal complex, or any combination thereof, or may further contain the organic substance. When the electron injection layer further contains an organic substance, the above-mentioned alkali metal, alkaline earth metal, rare earth metal, alkali metal compound, alkaline earth metal compound, rare earth metal compound, alkali metal complex, alkaline earth metal complex, rare earth metal complex, or any combination thereof may be uniformly or non-uniformly dispersed in a matrix composed of the organic substance.

[0222] The thickness of the electron injection layer may be about 0.1 nm to about 10 nm, or about 0.3 nm to about 9 nm. When the thickness of the electron injection layer satisfies the above-mentioned range, excellent electron injection characteristics can be obtained without a substantial increase in driving voltage.

[0223] [Second electrode 190] A second electrode 190 is disposed on the organic layer 150 as described above. The second electrode 190 may be a cathode, which is an electron injection electrode, and in this case, the material for the second electrode 190 may be a metal, alloy, conductive compound, or a combination thereof having a low work function.

[0224] The second electrode 190 may include at least one selected from the group consisting of lithium (Li), silver (Ag), magnesium (Mg), aluminum (Al), aluminum-lithium (Al-Li), calcium (Ca), magnesium-indium (Mg-In), magnesium-silver (Mg-Ag), ITO, and IZO, but is not limited thereto. The second electrode 190 may be a transmissive electrode, a semi-transmissive electrode, or a reflective electrode.

[0225] The second electrode 190 may have a single-layer structure, which is a single layer, or a multi-layer structure having multiple layers.

[0226] [Explanation of Organic Electroluminescent Devices 20 to 40] The organic electroluminescent device 20 of FIG. 2 has a structure in which a first capping layer 210, a first electrode 110, an organic layer 150, and a second electrode 190 are stacked in this order, the organic electroluminescent device 30 of FIG. 3 has a structure in which a first electrode 110, an organic layer 150, a second electrode 190, and a second capping layer 220 are stacked in this order, and the organic electroluminescent device 40 of FIG. 4 has a structure in which a first capping layer 210, a first electrode 110, an organic layer 150, a second electrode 190, and a second capping layer 220 are stacked in this order.

[0227] 2 to 4, the description of the first electrode 110, the organic layer 150, and the second electrode 190 refer to the description of FIG.

[0228] In the organic layer 150 of the organic electroluminescent device 20, 40, light generated in the light-emitting layer is extracted to the outside through the first electrode 110, which is a semi-transmissive electrode or a transmissive electrode, and the first capping layer 210, and in the organic layer 150 of the organic electroluminescent device 30, 40, light generated in the light-emitting layer is extracted to the outside through the second electrode 190, which is a semi-transmissive electrode or a transmissive electrode, and the second capping layer 220.

[0229] The first and second capping layers 210 and 220 may serve to improve external light emission efficiency according to the principle of constructive interference.

[0230] The first capping layer 210 and the second capping layer 220 may be, independently of each other, an organic capping layer made of an organic material, an inorganic capping layer made of an inorganic material, or a composite capping layer containing an organic material and an inorganic material.

[0231] At least one of the first capping layer 210 and the second capping layer 220 may independently include at least one material selected from the group consisting of a hydrocarbon ring compound, a heterocyclic compound, an amine-based compound, a porphine derivative, a phthalocyanine derivative, a naphthalocyanine derivative, an alkali metal complex, and an alkaline earth metal complex. The hydrocarbon ring compound, the heterocyclic compound, and the amine-based compound may be optionally substituted with a substituent containing at least one element selected from the group consisting of O, N, S, Se, Si, F, Cl, Br, and I. According to an embodiment, at least one of the first capping layer 210 and the second capping layer 220 may independently include a fused ring compound and / or an amine-based compound represented by Chemical Formula 1 and Chemical Formula 2.

[0232] According to other embodiments, at least one of the first capping layer 210 and the second capping layer 220 may independently include a fused ring compound represented by Chemical Formula 1 and Chemical Formula 2, a compound represented by Chemical Formula 201, and / or a compound represented by Chemical Formula 202.

[0233] According to yet another embodiment, at least one of the first capping layer 210 and the second capping layer 220 may contain, independently of each other, a compound selected from compound 1 to compound 225, compound HT28 to compound HT33, and compound CP1 to compound CP5 below, but is not limited thereto. [ka]

[0234] The organic electroluminescent device of the present disclosure has been described above with reference to FIGS. 1 to 4, but is not limited thereto.

[0235] Each layer included in the hole transport region, the light emitting layer, and the electron transport region is formed in a predetermined region using various methods such as vacuum deposition, spin coating, casting, LB (Langmuir-Blodgett) method, inkjet printing, laser printing, and laser induced thermal imaging (LITI).

[0236] When each layer included in the hole transport region, the light emitting layer, and the electron transport region is formed by vacuum deposition, the deposition conditions are, for example, a deposition temperature of about 100 to about 500° C., a deposition time of about 10 -8 ~about 10 -3 The vacuum level is selected within the range of a vacuum of torr and a deposition rate of about 0.001 to about 10 nm / sec, taking into consideration the material contained in the layer to be formed and the structure of the layer to be formed.

[0237] When each layer included in the hole transport region, the light emitting layer, and each layer included in the electron transport region are formed by a spin coating method, the coating conditions are selected in consideration of the materials included in the layers to be formed and the structure of the layers to be formed, within the ranges of, for example, a coating speed of about 2,000 rpm to about 5,000 rpm and a heat treatment temperature of about 80°C to 200°C. EXAMPLES

[0238] The fused ring compound and the organic electroluminescent device according to one embodiment of the present invention will be described in more detail below with reference to synthesis examples and examples. In the synthesis examples below, in the expression "B was used instead of A," the molar equivalents of A and B are the same.

[0239] Synthesis Example 1: Synthesis of Compound 2 [ka]

[0240] Synthesis of intermediate 2-1 2-Bromo-1-chloro-3-iodobenzene 3.17 g (10.0 mmol), phenylboronic acid 1.22 g (10.0 mmol), Pd(PPh 3 ) 4 0.58g (0.5mmol) and K 2 CO 3 4.14g (30.0mmol) was dissolved in tetrahydrofuran (THF) / H 2 The mixture was dissolved in 60 mL of 2:1 hexane / hexane (volume ratio) and stirred at 80° C. for 16 hours. The reaction solution was cooled to room temperature and extracted three times with 60 mL of water and 60 mL of diethyl ether. The organic layer was dried over magnesium sulfate, and the residue obtained by evaporating the solvent was separated and purified by silica gel chromatography to obtain 1.34 g (yield 50%) of intermediate 2-1. The compound produced was confirmed via LC-MS. C 12 H 8 BrCl:M + 265.9

[0241] Synthesis of intermediate 2-2 2.68g (10mmol) of intermediate 2-1 was dissolved in THF (20ml), n-BuLi was added at -78℃, and the mixture was stirred for 1 hour, after which 2.59g (10mol) of 2-bromo-9H-fluoren-9-one was dissolved in THF (20ml) and added. After cooling to room temperature and stirring for 1 hour, the mixture was extracted with dichloromethane (DCM) and 1N HCl.

[0242] The organic layer was washed with MgSO 4 After drying with hexane, the organic layer obtained after purification by column chromatography was dissolved in acetic acid, and then concentrated hydrochloric acid was added and refluxed for 1 hour to complete the reaction. The organic layer obtained therefrom was dried with magnesium sulfate, and the residue obtained by evaporating the solvent was separated and purified by silica gel chromatography to obtain 2.15 g (yield 50%) of intermediate 2-2. The compound produced was confirmed via LC-MS. C 25 H 14 BrCl:M + 428.0

[0243] Synthesis of intermediate 2-3 4.30 g (10 mmol) of intermediate 2-2, 2.25 g (10 mmol) of palladium(II) acetate, 6.55 g (25 mmol) of triphenylphosphine, and Na 2 CO 3 3.15 g (30 mmol) of the above and 60 ml of a mixed solution of benzyltriethylammonium chloride and N,N-dimethylacetamide (1:1, V:V) were heated under reflux for 24 hours. After cooling, the mixture was extracted three times with 60 mL of water and 60 mL of diethyl ether. The organic layer obtained therefrom was dried over magnesium sulfate, and the residue obtained by evaporating the solvent was separated and purified by silica gel chromatography to obtain 1.57 g (40% yield) of intermediate 2-3. The compound produced was confirmed via LC-MS. C 25 H 13 Br:M + 392.0

[0244] Synthesis of compound 2 3.93 g (10 mmol) of intermediate 2-3, 2.45 g (10 mmol) of N-phenyl-[1,1'-biphenyl]-4-amine, Pd 2 dba 3 0.46 g (0.5 mmol) of (tris(dibenzylideneacetone)dipalladium(0)) and 2.88 g (30 mmol) of sodium tert-butoxide were dissolved in 60 ml of toluene, and the mixture was stirred at 80° C. for 3 hours. After the reaction solution was cooled to room temperature, 40 ml of water was added, and the mixture was extracted three times with 50 ml of ethyl ether. The collected organic layer was diluted with MgSO 4 The residue obtained by evaporating the solvent was separated and purified by silica gel chromatography to obtain 3.91 g (70% yield) of compound 2. The compound thus obtained was analyzed by MS / FAB and 1 Confirmed via 1 H NMR. C 43 H 27 N:M + cal.:557.21,found:557.11

[0245] Synthesis Example 2: Synthesis of Compound 5 [ka]

[0246] Compound 5 was synthesized in the same manner as compound 2, except that N-phenylnaphthalene-2-amine was used instead of N-phenyl-[1,1'-biphenyl]-4-amine. The compound was analyzed by MS / FAB and 1 Confirmed via 1 H NMR. C 41 H 25 N:M + cal.:531.20,found:531.10

[0247] Synthesis Example 3: Synthesis of Compound 8 [ka]

[0248] Compound 8 was synthesized in the same manner as compound 2, except that 9,9-dimethyl-N-phenyl-9H-fluoren-2-amine was used instead of N-phenyl-[1,1'-biphenyl]-4-amine. The compound was analyzed by MS / FAB and 1 Confirmed via 1 H NMR. C 46 H 31 N:M + cal.:597.25,found:597.15

[0249] Synthesis Example 4: Synthesis of Compound 9 [ka]

[0250] Compound 9 was synthesized in the same manner as compound 2, except that N,9,9-triphenyl-9H-fluoren-2-amine was used instead of N-phenyl-[1,1'-biphenyl]-4-amine. The compound was analyzed by MS / FAB and 1 Confirmed via 1 H NMR. C 56 H 35 N:M + cal.:721.28,found:721.18

[0251] Synthesis Example 5: Synthesis of Compound 11 [ka]

[0252] Compound 11 was synthesized in the same manner as compound 2, except that N,9-diphenyl-9H-carbazol-2-amine was used instead of N-phenyl-[1,1'-biphenyl]-4-amine. The compound was analyzed by MS / FAB and 1 Confirmed via 1 H NMR. C 49 H 30 N 2 :M + cal.:646.24,found:646.14

[0253] Synthesis Example 6: Synthesis of Compound 12 [ka]

[0254] Compound 12 was synthesized in the same manner as compound 2, except that N,9-diphenyl-9H-carbazol-3-amine was used instead of N-phenyl-[1,1'-biphenyl]-4-amine. The compound was analyzed by MS / FAB and 1 Confirmed via 1 H NMR. C 49 H 30 N 2 :M + cal.:646.24,found:646.14

[0255] Synthesis Example 7: Synthesis of Compound 14 [ka]

[0256] Compound 14 was synthesized in the same manner as compound 2, except that 2-(naphthalene-1-yl)-N-phenylaniline was used instead of N-phenyl-[1,1'-biphenyl]-4-amine. The compound was analyzed by MS / FAB and 1 Confirmed via 1 H NMR. C 47 H 29 N:M + cal.:607.23,found:607.13

[0257] Synthesis Example 8: Synthesis of Compound 17 [ka]

[0258] Compound 17 was synthesized in the same manner as compound 2, except that 2-(naphthalene-2-yl)-N-phenylaniline was used instead of N-phenyl-[1,1'-biphenyl]-4-amine. The compound was analyzed by MS / FAB and 1 Confirmed via 1 H NMR. C 47 H 29 N:M + cal.:607.23,found:607.13

[0259] Synthesis Example 9: Synthesis of Compound 20 [ka]

[0260] Compound 20 was synthesized in the same manner as compound 2, except that N-phenyldibenzo[b,d]furan-2-amine was used instead of N-phenyl-[1,1'-biphenyl]-4-amine. The compound was analyzed by MS / FAB and 1 Confirmed via 1 H NMR. C 43 H 25 NO:M + cal.:571.19,found:571.09

[0261] Synthesis Example 10: Synthesis of Compound 21 [ka]

[0262] Compound 21 was synthesized in the same manner as compound 2, except that N-phenyldibenzo[b,d]furan-1-amine was used instead of N-phenyl-[1,1'-biphenyl]-4-amine. The compound was analyzed by MS / FAB and 1 Confirmed via 1 H NMR. C 43 H 25 NO:M + cal.:571.19,found:571.09

[0263] Synthesis Example 11: Synthesis of Compound 25 [ka] Compound 25 was synthesized in the same manner as compound 2, except that N-phenyldibenzo[b,d]thiophene-1-amine was used instead of N-phenyl-[1,1'-biphenyl]-4-amine. The compound was analyzed by MS / FAB and 1 Confirmed via 1 H NMR. C 43 H 25 NS:M + cal.:587.17,found:587.07

[0264] Synthesis Example 12: Synthesis of Compound 38 [ka]

[0265] Compound 38 was synthesized in the same manner as compound 2, except that N-([1,1'-biphenyl]-4-yl)-9,9-dimethyl-9H-fluoren-2-amine was used instead of N-phenyl-[1,1'-biphenyl]-4-amine. The compound was analyzed by MS / FAB and 1 Confirmed via 1 H NMR. C 52 H 35 N:M + cal.:673.28,found:673.18

[0266] Synthesis Example 13: Synthesis of Compound 126 [ka]

[0267] Synthesis of intermediate 126-1 THF / H 2 In a 60 mL mixture of 1:1 HO (volume ratio 2 / 1), 3.93 g (10.0 mmol) of intermediate 2-3, 1.56 g (10.0 mmol) of (4-chlorophenyl)boronic acid, and Pd(PPh 3 ) 4 0.58g (0.5mmol) and K 2 CO 3 After dissolving 4.14g (30.0mmol), the mixture was stirred at 80°C for 16 hours. The reaction solution was cooled to room temperature and then extracted three times with 60mL of water and 60mL of diethyl ether. The organic layer obtained therefrom was dried over magnesium sulfate, and the residue obtained by evaporating the solvent was separated and purified by silica gel chromatography to obtain 2.98g (yield 70%) of intermediate 126-1. The compound produced was confirmed via LC-MS. C 31 H 17 Cl:M + 424.1

[0268] Synthesis of compound 126 Intermediate 126-1 (4.25 g, 10 mmol), N-phenyl-[1,1'-biphenyl]-4-amine (2.45 g, 10 mmol), Pd 2 dba 3 0.46 g (0.5 mmol) of (tris(dibenzylideneacetone)dipalladium(0)) and 2.88 g (30 mmol) of sodium tert-butoxide were dissolved in 60 ml of toluene and stirred at 80° C. for 3 hours. The reaction solution was cooled to room temperature, and then 40 ml of water was added and extracted three times with 50 ml of ethyl ether. The collected organic layer was diluted with MgSO 4 The residue obtained by evaporating the solvent was purified by silica gel chromatography to obtain 4.44 g (70% yield) of compound 126. 1 Confirmed via 1 H NMR. C 49 H 31 N:M + cal.:633.25,found:633.15

[0269] Synthesis Example 14: Synthesis of Compound 133 [ka]

[0270] Compound 133 was synthesized in the same manner as in the synthesis of compound 126, except that N,9,9-triphenyl-9H-fluoren-2-amine was used instead of N-phenyl-[1,1'-biphenyl]-4-amine. The compound was analyzed by MS / FAB and 1 Confirmed via 1 H NMR. C 62 H 39 N:M + cal.:797.31,found:797.21

[0271] Synthesis Example 15: Synthesis of Compound 196 [ka]

[0272] Compound 196 was synthesized in the same manner as compound 126, except that N-phenyl-4-(9-phenyl-9H-carbazol-3-yl)aniline was used instead of N-phenyl-[1,1'-biphenyl]-4-amine. The compound was analyzed by MS / FAB and 1 Confirmed via 1 H NMR. C 55 H 34 N2:M + cal.:722.27,found:722.17

[0273] The compound synthesized in the above synthesis example 1 The 1 H NMR and MS / FAB results are shown in Table 1 below.

[0274] For compounds other than those shown in Table 1, those skilled in the art will be able to easily recognize the synthesis methods thereof by referring to the above-mentioned synthetic pathways and raw materials. [Table 1]

[0275] [Example of manufacturing organic electroluminescent device] Comparative Example 1 The anode is Corning 15 Ω / cm 2 A (1,200 Å) ITO glass substrate was cut to a size of 50 mm x 50 mm x 0.7 mm, ultrasonically cleaned using isopropyl alcohol and pure water for 5 minutes each, then irradiated with ultraviolet light for 30 minutes and exposed to ozone for cleaning, and the glass substrate was placed in a vacuum deposition apparatus.

[0276] On the top of the substrate, 2-TNATA was vacuum-deposited to form a hole injection layer with a thickness of 60 nm, and then 4,4'-bis[N-(1-naphthyl)-N-phenylamino]biphenyl (NPB) was vacuum-deposited to a thickness of 30 nm as a hole transport compound to form a hole transport layer.

[0277] On top of the hole transport layer, 9,10-di(naphthalen-2-yl)anthracene (DNA) as a known blue fluorescent host and 4,4'-bis[2-(4-(N,N-diphenylamino)phenyl)vinyl]biphenyl (DPAVBi) as a blue fluorescent dopant were simultaneously evaporated in a weight ratio of 98:2 to form a 30 nm-thick light-emitting layer. [ka] [ka]

[0278] Next, Alq3 was evaporated to a thickness of 30 nm on top of the light-emitting layer as an electron transport layer, and then LiF, an alkali metal halide, was evaporated to a thickness of 1 nm on top of the electron transport layer as an electron injection layer, and Al was vacuum-evaporated to a thickness of 300 nm to form a LiF / Al electrode, thereby producing an organic electroluminescent device.

[0279] Examples 1 to 15 Organic electroluminescent devices were fabricated in the same manner as in Comparative Example 1, except that in forming the hole transport layer, the compounds shown in Table 2 below were used instead of NPB.

[0280] Comparative Examples 2 to 6 Organic electroluminescent devices were prepared in the same manner as in Comparative Example 1, except that the following compounds A, B, C, D and E were used instead of NPB when forming the hole transport layer. [ka]

[0281] [evaluation] For the organic electroluminescent devices fabricated in the above Examples 1 to 15 and Comparative Examples 1 to 6, a current density of 50 mA / cm 2 The device performance (driving voltage, luminance, efficiency and color coordinates) and current density diagram when driven at 100 mA / cm 2 The time until the initial luminance was reduced by 50% (half-life) was measured and shown in Table 2 below. -Brightness: Power was supplied from a current / voltage meter (Kethley SMU 236) and measured using a brightness meter PR650. - Efficiency: Powered by a current / voltage meter (Kethley SMU 236) and measured using a luminance meter PR650. [Table 2]

[0282] From Table 2, it can be seen that in the case of Examples 1 to 15 in which the fused ring compound according to one embodiment of the present invention is used as a hole transport material in an organic electroluminescent device, the driving voltage is improved and the luminous efficiency and lifetime are improved compared to the organic electroluminescent devices of Comparative Examples 1 to 6.

[0283] That is, when the fused ring compound of the present invention is used in an organic electroluminescent device, it is found to be effective in terms of driving voltage, efficiency, and life span.

[0284] The present invention has been described with reference to the above synthesis examples and examples, but these are merely illustrative, and a person skilled in the art of the present invention will understand that various modifications and equivalent embodiments are possible therefrom. Therefore, the true technical scope of protection of the present invention is defined by the technical ideas of the claims. [Explanation of symbols]

[0285] 10,20,30,40 Organic electroluminescent device 110 1st electrode 150 Organic layer 190 2nd electrode 210 First capping layer 220 Second Capping Layer

Claims

1. A first electrode; a second electrode facing the first electrode; an organic layer disposed between the first electrode and the second electrode, the organic layer including a light-emitting layer; The organic layer includes at least one fused ring compound represented by the following Chemical Formula 1 or 2. 【Chemistry 1】 ...(chemical formula 1) 【Chemistry 2】 ...(chemical formula 2) (In the above Chemical Formula 1 and Chemical Formula 2, X １ is C(R 1 ), and X ２ is C(R 2 ), and X ３ is C(R 3 ), and X ４ is C(R 4 ) or C(R ｘ ) and X ５ is C(R 5 ) or C(R ｘ ) and X ６ is C(R 6 ) or C(R ｘ ) and X ７ is C(R 7 ) or C(R ｘ ) and X ８ is C(R 8 ) or C(R ｘ ) and X ９ is C(R 9 ) or C(R ｘ ) and X １０ is C(R 10 ) or C(R ｘ ) and X １１ is C(R 11 ) or C(R ｘ ) and X １２ is C(R 12 ), and X １３ is C(R 13), and X １４ is C(R 14 ); X ４ ~X １１ At least one of C(R ｘ ) and R ｘ is a group represented by the above chemical formula 2, L １ ~L ３ are each independently a substituted or unsubstituted C ５ -C ６０ Hydrocarbon ring groups and substituted or unsubstituted C １ -C ６０ heterocyclic groups, a1 to a3 are each independently selected from integers of 0 to 3; When a1 is 0, −(L １ ) ａ１ - is a single bond, and when a2 is 0, -(L ２ ) ａ２ - is a single bond, and when a3 is 0, -(L ３ ) ａ３ - is a single bond, Ar １ and Ar ２ are each independently a substituted or unsubstituted C ６ -C ６０ Aryl group, substituted or unsubstituted C １ -C ６０ is selected from the group consisting of a heteroaryl group, a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, and a substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group; b1 and b2 are each independently selected from the integers of 1 to 5; R １ ~R １４ are each independently hydrogen, deuterium, -F-Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, a substituted or unsubstituted C １ -C ６０ Alkyl group, substituted or unsubstituted C ２ -C ６０ Alkenyl group, substituted or unsubstituted C ２ -C ６０ Alkynyl group, substituted or unsubstituted C １ -C ６０ Alkoxy group, substituted or unsubstituted C ３ -C １０ Cycloalkyl groups, substituted or unsubstituted C １ -C １０ Heterocycloalkyl group, substituted or unsubstituted C ３ -C １０ Cycloalkenyl group, substituted or unsubstituted C １ -C １０ Heterocycloalkenyl group, substituted or unsubstituted C ６ -C ６０ Aryl group, substituted or unsubstituted C ６ -C ６０ Aryloxy group, substituted or unsubstituted C ６ -C ６０ Arylthio group, substituted or unsubstituted C １ -C ６０ a heteroaryl group, a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, a substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group, -Si(Q １ ) (Q ２ ) (Q ３ ), -N(Q １ ) (Q ２ ), -B(Q １ ) (Q ２ ), -C(=O)(Q １ ), -S(=O) ２ (Q １ ), and -P(=O)(Q １ ) (Q ２ ) is selected from The substituted C ５ -C ６０ Hydrocarbon ring group, substituted C １ -C ６０ Heterocyclic groups, substituted C １ -C ６０ Alkyl groups, substituted C ２ -C ６０ Alkenyl Groups, Substituted C ２ -C ６０ Alkynyl Group, Substituted C １ -C ６０ Alkoxy groups, substituted C ３ -C １０ Cycloalkyl groups, substituted C １ -C １０ Heterocycloalkyl groups, substituted C ３ -C １０ Cycloalkenyl Groups, Substituted C １ -C １０ Heterocycloalkenyl Groups, Substituted C ６ -C ６０ Aryl groups, substituted C ６ -C ６０ Aryloxy groups, substituted C ６ -C ６０ Arylthio group, substituted C １ -C ６０ The substituents of the heteroaryl group, the substituted monovalent non-aromatic condensed polycyclic group, and the substituted monovalent non-aromatic condensed heteropolycyclic group are Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C １ -C ６０ Alkyl group, C ２ -C ６０ Alkenyl group, C ２ -C ６０ Alkynyl group and C １ -C ６０ Alkoxy group; Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C ３ -C １０ Cycloalkyl group, C １ -C １０ Heterocycloalkyl group, C ３ -C １０ Cycloalkenyl group, C １ -C １０ Heterocycloalkenyl group, C ６ -C ６０ Aryl group, C ６ -C ６０ Aryloxy group, C ６ -C ６０ Arylthio group, C １ -C ６０ Heteroaryl group, monovalent non-aromatic condensed polycyclic group, monovalent non-aromatic condensed heteropolycyclic group, -Si(Q １１ ) (Q １２ ) (Q １３ ), -N(Q １１ ) (Q １２ ), -B(Q １１ ) (Q １２ ), -C(=O)(Q １１ ), -S(=O) ２ (Q １１ ) and -P(=O)(Q １１ ) (Q １２ C is substituted with at least one selected from １ -C ６０ Alkyl group, C ２ -C ６０ Alkenyl group, C ２ -C ６０ Alkynyl group and C １ -C ６０ Alkoxy group; C ３ -C １０ Cycloalkyl group, C １ -C １０ Heterocycloalkyl group, C ３ -C １０ Cycloalkenyl group, C １ -C １０ Heterocycloalkenyl group, C ６ -C ６０ Aryl group, C ６ -C ６０ Aryloxy group, C ６ -C ６０ Arylthio group, C １ -C ６０ Heteroaryl groups, monovalent non-aromatic condensed polycyclic groups, and monovalent non-aromatic condensed heteropolycyclic groups; Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C １ -C ６０ Alkyl group, C ２ -C ６０ Alkenyl group, C ２ -C ６０ Alkynyl group, C １ -C ６０ Alkoxy group, C ３ -C １０ Cycloalkyl group, C １ -C １０ Heterocycloalkyl group, C ３ -C １０ Cycloalkenyl group, C １ -C １０ Heterocycloalkenyl group, C ６ -C ６０ Aryl group, C ６ -C ６０ Aryloxy group, C ６ -C ６０ Arylthio group, C １ -C ６０ Heteroaryl group, monovalent non-aromatic condensed polycyclic group, monovalent non-aromatic condensed heteropolycyclic group, -Si(Q ２１ ) (Q ２２ ) (Q ２３ ), -N(Q ２１ ) (Q ２２ ), -B(Q ２１ ) (Q ２２ ), -C(=O)(Q ２１ ), -S(=O) ２ (Q ２１ ) and -P(=O)(Q ２１ ) (Q ２２ C is substituted with at least one selected from ３ -C １０ Cycloalkyl group, C １ -C １０ Heterocycloalkyl group, C ３ -C １０ Cycloalkenyl group, C １ -C １０ Heterocycloalkenyl group, C ６ -C ６０ Aryl group, C ６ -C ６０ Aryloxy group, C ６ -C ６０ Arylthio group, C １ -C ６０ Heteroaryl groups, monovalent non-aromatic condensed polycyclic groups, and monovalent non-aromatic condensed heteropolycyclic groups; and -Yes (Q) ３１ )(Q ３２ )(Q ３３ ),-N(Q ３１ )(Q ３２ ), -B (Q ３１ ) (Q ３２ ), -C(=O)(Q ３１ ), -S(=O) ２ (Q ３１ ) and -P(=O)(Q ３１ ) (Q ３２ ); Q １ ~Q ３ , Q １１ ~Q １３ , Q ２１ ~Q ２３ , and Q ３１ ~Q ３３ are mutually exclusive In addition, hydrogen, deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazino group, a hydrazono group, C １ -C ６０ Alkyl group, C ２ -C ６０ Alkenyl group, C ２ -C ６０ Alkynyl group, C １ -C ６０ Alkoxy group, C ３ -C １０ Cycloalkyl group, C １ -C １０ Heterocycloalkyl group, C ３ -C １０ Cycloalkenyl group, C １ -C １０ Heterocycloalkenyl group, C ６ -C ６０ Aryl group, C １ -C ６０ is selected from the group consisting of heteroaryl groups, monovalent non-aromatic condensed polycyclic groups, monovalent non-aromatic condensed heteropolycyclic groups, biphenylyl groups, and terphenylyl groups; * indicates the bond position to the adjacent atom.)

2. the first electrode is an anode; the second electrode is a cathode; the organic layer further includes a hole transport region disposed between the first electrode and the light emitting layer, and an electron transport region disposed between the light emitting layer and the second electrode; the hole transport region includes a hole injection layer, a hole transport layer, a light-emitting auxiliary layer, an electron blocking layer, or any combination thereof; The organic electroluminescent device of claim 1 , wherein the electron transport region comprises a buffer layer, a hole blocking layer, an electron modulating layer, an electron transport layer, an electron injection layer, or any combination thereof.

3. The organic electroluminescent device according to claim 2 , wherein the hole transport region comprises the fused ring compounds represented by Formula 1 and Formula 2.

4. the hole transport region includes at least one of a hole injection layer and a hole transport layer; The organic electroluminescent device according to claim 2 , wherein at least one of the hole injection layer and the hole transport layer contains the fused ring compound represented by Chemical Formula 1 or Chemical Formula 2.

5. At least one of a first capping layer disposed under the first electrode and a second capping layer disposed over the second electrode, The organic electroluminescent device of claim 1 , wherein at least one of the first capping layer and the second capping layer comprises a fused ring compound represented by Formula 1 or Formula 2.

6. The organic electroluminescent device according to claim 1 , wherein the light-emitting layer comprises the fused ring compounds represented by Chemical Formula 1 and Chemical Formula 2.

7. the light-emitting layer further comprises a dopant, and the fused ring compound is a host; The organic electroluminescent device according to claim 6, wherein the content of the fused ring compound is greater than the content of the dopant.

8. A fused ring compound represented by the following formula 1 and formula 2: 【Chemistry 3】 ...(chemical formula 1) 【Chemistry 4】 ...(chemical formula 2) (In the above Chemical Formula 1 and Chemical Formula 2, X １ is C(R 1 ), and X ２ is C(R 2 ), and X ３ is C(R 3 ), and X ４ is C(R 4 ) or C(R ｘ ) and X ５ is C(R 5 ) or C(R ｘ ) and X ６ is C(R 6 ) or C(R ｘ ) and X ７ is C(R 7 ) or C(R ｘ ) and X ８ is C(R 8 ) or C(R ｘ ) and X ９ is C(R 9 ) or C(R ｘ ) and X １０ is C(R 10 ) or C(R ｘ ) and X １１ is C(R 11 ) or C(R ｘ ) and X １２ is C(R 12 ), and X １３ is C(R 13 ), and X １４ is C(R 14 ); X ４ ~X １１ At least one of C(R ｘ ) and R ｘ is a group represented by the above chemical formula 2, L １ ~L ３ are each independently a substituted or unsubstituted C ５ -C ６０ Hydrocarbon ring groups and substituted or unsubstituted C １ -C ６０ heterocyclic groups, a1 to a3 are each independently selected from integers of 0 to 3; When a1 is 0, −(L １ ) ａ１ - is a single bond, and when a2 is 0, -(L ２ ) ａ２ - is a single bond, and when a3 is 0, -(L ３ ) ａ３ - is a single bond, Ar １ and Ar ２ are each independently a substituted or unsubstituted C ６ -C ６０ Aryl group, substituted or unsubstituted C １ -C ６０ is selected from the group consisting of a heteroaryl group, a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, and a substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group; b1 and b2 are each independently selected from the integers of 1 to 5; R １ ~R １４ are each independently hydrogen, deuterium, -F-Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, a substituted or unsubstituted C １ -C ６０ Alkyl group, substituted or unsubstituted C ２ -C ６０ Alkenyl group, substituted or unsubstituted C ２ -C ６０ Alkynyl group, substituted or unsubstituted C １ -C ６０ Alkoxy group, substituted or unsubstituted C ３ -C １０ Cycloalkyl groups, substituted or unsubstituted C １ -C １０ Heterocycloalkyl group, substituted or unsubstituted C ３ -C １０ Cycloalkenyl group, substituted or unsubstituted C １ -C １０ Heterocycloalkenyl group, substituted or unsubstituted C ６ -C ６０ Aryl group, substituted or unsubstituted C ６ -C ６０ Aryloxy group, substituted or unsubstituted C ６ -C ６０ Arylthio group, substituted or unsubstituted C １ -C ６０ a heteroaryl group, a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, a substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group, -Si(Q １ ) (Q ２ ) (Q ３ ), -N(Q １ ) (Q ２ ), -B(Q １ ) (Q ２ ), -C(=O)(Q １ ), -S(=O) ２ (Q １ ), and -P(=O)(Q １ ) (Q ２ ) is selected from The substituted C ５ -C ６０ Hydrocarbon ring group, substituted C １ -C ６０ Heterocyclic groups, substituted C １ -C ６０ Alkyl groups, substituted C ２ -C ６０ Alkenyl Groups, Substituted C ２ -C ６０ Alkynyl Group, Substituted C １ -C ６０ Alkoxy groups, substituted C ３ -C １０ Cycloalkyl groups, substituted C １ -C １０ Heterocycloalkyl groups, substituted C ３ -C １０ Cycloalkenyl Groups, Substituted C １ -C １０ Heterocycloalkenyl Groups, Substituted C ６ -C ６０ Aryl groups, substituted C ６ -C ６０ Aryloxy groups, substituted C ６ -C ６０ Arylthio group, substituted C １ -C ６０ The substituents of the heteroaryl group, the substituted monovalent non-aromatic condensed polycyclic group, and the substituted monovalent non-aromatic condensed heteropolycyclic group are Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C １ -C ６０ Alkyl group, C ２ -C ６０ Alkenyl group, C ２ -C ６０ Alkynyl group and C １ -C ６０ Alkoxy group; Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C ３ -C １０ Cycloalkyl group, C １ -C １０ Heterocycloalkyl group, C ３ -C １０ Cycloalkenyl group, C １ -C １０ Heterocycloalkenyl group, C ６ -C ６０ Aryl group, C ６ -C ６０ Aryloxy group, C ６ -C ６０ Arylthio group, C １ -C ６０ Heteroaryl group, monovalent non-aromatic condensed polycyclic group, monovalent non-aromatic condensed heteropolycyclic group, -Si(Q １１ ) (Q １２ ) (Q １３ ), -N(Q １１ ) (Q １２ ), -B(Q １１ ) (Q １２ ), -C(=O)(Q １１ ), -S(=O)2(Q １１ ) and -P(=O)(Q １１ ) (Q １２ C is substituted with at least one selected from １ -C ６０ Alkyl group, C ２ -C ６０ Alkenyl group, C ２ -C ６０ Alkynyl group and C １ -C ６０ Alkoxy group; C ３ -C １０ Cycloalkyl group, C １ -C １０ Heterocycloalkyl group, C ３ -C １０ Cycloalkenyl group, C １ -C １０ Heterocycloalkenyl group, C ６ -C ６０ Aryl group, C ６ -C ６０ Aryloxy group, C ６ -C ６０ Arylthio group, C １ -C ６０ Heteroaryl groups, monovalent non-aromatic condensed polycyclic groups, and monovalent non-aromatic condensed heteropolycyclic groups; Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C １ -C ６０ Alkyl group, C ２ -C ６０ Alkenyl group, C ２ -C ６０ Alkynyl group, C １ -C ６０ Alkoxy group, C ３ -C １０ Cycloalkyl group, C １ -C １０ Heterocycloalkyl group, C ３ -C １０ Cycloalkenyl group, C １ -C １０ Heterocycloalkenyl group, C ６ -C ６０ Aryl group, C ６ -C ６０ Aryloxy group, C ６ -C ６０ Arylthio group, C １ -C ６０ Heteroaryl group, monovalent non-aromatic condensed polycyclic group, monovalent non-aromatic condensed heteropolycyclic group, -Si(Q ２１ ) (Q ２２ ) (Q ２３ ), -N(Q ２１ ) (Q ２２ ), -B(Q ２１ ) (Q ２２ ), -C(=O)(Q ２１ ), -S(=O) ２ (Q ２１ ) and -P(=O)(Q ２１ ) (Q ２２ C is substituted with at least one selected from ３ -C １０ Cycloalkyl group, C １ -C １０ Heterocycloalkyl group, C ３ -C １０ Cycloalkenyl group, C １ -C １０ Heterocycloalkenyl group, C ６ -C ６０ Aryl group, C ６ -C ６０ Aryloxy group, C ６ -C ６０ Arylthio group, C １ -C ６０ Heteroaryl groups, monovalent non-aromatic condensed polycyclic groups, and monovalent non-aromatic condensed heteropolycyclic groups; and -Yes (Q) ３１ )(Q ３２ )(Q ３３ ),-N(Q ３１ )(Q ３２ ), -B (Q ３１ ) (Q ３２ ), -C(=O)(Q ３１ ), -S(=O) ２ (Q ３１ ) and -P(=O)(Q ３１ ) (Q ３２ ); Q １ ~Q ３ , Q １１ ~Q １３ , Q ２１ ~Q ２３ , and Q ３１ ~Q ３３ are mutually exclusive In addition, hydrogen, deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazino group, a hydrazono group, C １ -C ６０ Alkyl group, C ２ -C ６０ Alkenyl group, C ２ -C ６０ Alkynyl group, C １ -C ６０ Alkoxy group, C ３ -C １０ Cycloalkyl group, C １ -C １０ Heterocycloalkyl group, C ３ -C １０ Cycloalkenyl group, C １ -C １０ Heterocycloalkenyl group, C ６ -C ６０ Aryl group, C １ -C ６０ is selected from the group consisting of heteroaryl groups, monovalent non-aromatic condensed polycyclic groups, monovalent non-aromatic condensed heteropolycyclic groups, biphenylyl groups, and terphenylyl groups; * indicates the bond position to the adjacent atom.)

9. L １～ L ３ is a benzene ring, a pentalene ring, an indene ring, a naphthalene ring, an azulene ring, a heptalene ring, an indacene ring, an acenaphthene ring, a fluorene ring, a spiro-bifluorene ring, a benzofluorene ring, a phenalene ring, a phenanthrene ring, an anthracene ring, a fluoranthene ring, a triphenylene ring, a pyrene ring, a chrysene ring, a naphthacene ring, a picene ring, a perylene ring, a pentaphenylene ring, a hexacene ring, a pyrrole ring, an imidazole ring, a pyrazole ring, a pyridine ring, a pyrazine ring, a pyrimidine ring, a pyridazine ring, an isoindole ring, an indole ring, an indazole ring, a purine ring, a quinoline ring, an isoquinoline ring, a benzoquinoline ring, a phthalazine ring, a naphthyridin ring, linking groups having the structure of a quinoxaline ring, a quinazoline ring, a cinnoline ring, a carbazole ring, a dibenzosilole ring, a phenanthridine ring, an acridine ring, a phenanthroline ring, a phenazine ring, a benzoxazole ring, a benzimidazole ring, a furan ring, a benzofuran ring, a thiophene ring, a benzothiophene ring, a thiazole ring, an isothiazole ring, a benzothiazole ring, an isoxazole ring, an oxazole ring, a triazole ring, a tetrazole ring, an oxadiazole ring, a triazine ring, a benzoxazole ring, a dibenzofuran ring, a dibenzothiophene ring, a benzocarbazole ring, a dibenzocarbazole ring, or a dibenzosilole ring; and Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C １ -C ２０ Alkyl group, C １ -C ２０ Alkoxy group, phenyl group, pentalenyl group, indenyl group, naphthyl group, azulenyl group, heptalenyl group, indacenyl group, acenaphthenyl group, fluorenyl group, spiro-bifluorenyl group, benzofluorenyl group, phenalenyl group, phenanthrenyl group, anthracenyl group, fluoranthenyl group, triphenylenyl group, pyrenyl group, chrysenyl group, naphthacenyl group, picenyl group, perylenyl group, pentaphenylenyl group, hexacenyl group, pyrrolyl group, imidazolyl group, pyrazolyl group, pyridinyl group, pyrazinyl group, pyrimidinyl group, pyridazinyl group, isoindolyl group, indolyl group, indazolyl group, purinyl group, quinolinyl group, isoquinolinyl group, benzoquinolinyl group , phthalazinyl group, naphthyridinyl group, quinoxalinyl group, quinazolinyl group, cinnolinyl group, carbazolyl group, dibenzosilolyl group, phenanthridinyl group, acridinyl group, phenanthrolinyl group, phenazinyl group, benzoxazolyl group, benzimidazolyl group, furanyl group, benzofuranyl group, thiophenyl group, benzothiophenyl group, thiazolyl group, isothiazolyl group, benzothiazolyl group, isoxazolyl group, oxazolyl group, triazolyl group, tetrazolyl group, oxadiazolyl group, triazinyl group, benzoxazolyl group, dibenzofuranyl group, dibenzothiophenyl group, benzocarbazolyl group, dibenzocarbazolyl group, dibenzosilolyl group, -Si(Q ３１ ) (Q ３２ ) (Q ３３ ), -N(Q ３１ ) (Q ３２ ) and -B(Q ３１ ) (Q ３２ a benzene ring, a pentalene ring, an indene ring, a naphthalene ring, an azulene ring, a heptalene ring, an indacene ring, an acenaphthene ring, a fluorene ring, a spiro-bifluorene ring, a benzofluorene ring, a phenalene ring, a phenanthrene ring, an anthracene ring, a fluoranthene ring, a triphenylene ring, a pyrene ring, a chrysene ring, a naphthacene ring, a picene ring, a perylene ring, a pentaphenylene ring, a hexacene ring, a pyrrole ring, an imidazole ring, a pyrazole ring, a pyridine ring, a pyrazine ring, a pyrimidine ring, a pyridazine ring, an isoindole ring, an indole ring, an indazole ring, a purine ring, a quinoline ring, an isoquinoline ring, a benzoquinoline ring, a phthalazine ring, a linking group having a structure of a phenyl ring, a naphthyridine ring, a quinoxaline ring, a quinazoline ring, a cinnoline ring, a carbazole ring, a dibenzosilole ring, a phenanthridine ring, an acridine ring, a phenanthroline ring, a phenazine ring, a benzoxazole ring, a benzimidazole ring, a furan ring, a benzofuran ring, a thiophene ring, a benzothiophene ring, a thiazole ring, an isothiazole ring, a benzothiazole ring, an isoxazole ring, an oxazole ring, a triazole ring, a tetrazole ring, an oxadiazole ring, a triazine ring, a benzoxazole ring, a dibenzofuran ring, a dibenzothiophene ring, a benzocarbazole ring, a dibenzocarbazole ring, or a dibenzosilole ring; Q ３１ ~Q ３３ are each independently hydrogen, deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazino group, a hydrazono group, C １ -C ６０ Alkyl group, C ２ -C ６０ Alkenyl group, C ２ -C ６０ Alkynyl group, C １ -C ６０ Alkoxy group, C ３ -C １０ Cycloalkyl group, C １ -C １０ Heterocycloalkyl group, C ３ -C １０ Cycloalkenyl group, C １ -C １０ Heterocycloalkenyl group, C ６ -C ６０ Aryl group, C １ -C ６０ 9. The fused ring compound according to claim 8, wherein the fused ring is selected from the group consisting of a heteroaryl group, a monovalent non-aromatic fused polycyclic group, a monovalent non-aromatic hetero-fused polycyclic group, a biphenylyl group, and a terphenylyl group.

10. L １ ~L ３ are each independently selected from the groups represented by the following formulas 3-1 and 3-43. 【Chemistry 5】 【Chemistry 6】 【Chemistry 7】 【Chemistry 8】 【Chemistry 9】 (In the above Chemical Formula 3-1 to Chemical Formula 3-43, Y １ is O, S, C (Z ３ ) (Z ４ ), N(Z ５ ) or Si(Z ６ ) (Z ７ ) and Z １ ~Z ７ are each independently hydrogen, deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, C １ -C ２０ Alkyl group, C １ -C ２０ Alkoxy group, phenyl group, biphenylyl group, terphenylyl group, naphthyl group, fluorenyl group, spiro-bifluorenyl group, benzofluorenyl group, dibenzofluorenyl group, phenanthrenyl group, anthracenyl group, pyrenyl group, chrysenyl group, pyridinyl group, pyrazinyl group, pyrimidinyl group, pyridazinyl group, quinolinyl group, isoquinolinyl group, quinoxalinyl group, quinazolinyl group, carbazolyl group, dibenzofuranyl group, dibenzothiophenyl group, triazinyl group, benzimidazolyl group, phenanthrolinyl group, -Si(Q ３１ ) (Q ３２ ) (Q ３３ ), -N(Q ３１ ) (Q ３２ ), and -B(Q ３１ ) (Q ３２ ) is selected from Q ３１ ~Q ３３ are, independently of each other, C １ -C ２０ Alkyl group, C １ -C ２０ selected from the group consisting of alkoxy, phenyl, biphenylyl, terphenylyl, naphthyl and pyridinyl; d2 is an integer selected from 0 to 2; d3 is an integer selected from 0 to 3; d4 is an integer selected from 0 to 4, d5 is an integer selected from 0 to 5; d6 is an integer selected from 0 to 6, d8 is an integer selected from 0 to 8; * and *' are the bond positions to adjacent atoms.)

11. The fused ring compound according to claim 8, wherein a1 to a3 are each independently 0 or 1.

12. Ar １ and Ar ２ are each independently a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclopentenyl group, a cyclohexenyl group, a phenyl group, a pentalenyl group, an indenyl group, a naphthyl group, an azulenyl group, a heptalenyl group, an indacenyl group, an acenaphthyl group, a fluorenyl group, a spiro-bifluorenyl group, a spiro-cyclopentane-fluorenyl group, a spiro-cyclohexane-fluorenyl group, a spiro-fluorene-benzofluorenyl group, a benzofluorenyl group, a dibenzofluorenyl group, a phenalenyl group, a phenanthrenyl group, an anthracenyl group, a fluoranthenyl group, a triphenylenyl group, a pyrenyl group, a chrysenyl group, a naphthacenyl group, a picenyl group, a perylenyl group, a pentaphenyl group, a hexacenyl group, a pyrrolyl group, an imidazolyl group, a pyrazolyl group, a pyridinyl group, a pyrazinyl group, a pyrimidinyl group, nyl group, pyridazinyl group, isoindolyl group, indolyl group, indazolyl group, purinyl group, quinolinyl group, isoquinolinyl group, benzoquinolinyl group, phthalazinyl group, naphthyridinyl group, quinoxalinyl group, quinazolinyl group, cinnolinyl group, carbazolyl group, phenanthridinyl group, acridinyl group, phenanthrolinyl group, phenazinyl group, benzoxazolyl group, benzimidazolyl group, furanyl group, benzofuranyl group, thiophenyl group, benzothiophenyl group, thiazolyl group, isothiazolyl group, benzothiazolyl group, isoxazolyl group, oxazolyl group, triazolyl group, tetrazolyl group, oxadiazolyl group, triazinyl group, benzoxazolyl group, dibenzofuranyl group, dibenzothiophenyl group, benzocarbazolyl group, dibenzocarbazolyl group, and dibenzosilolyl group; Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C １ -C ２０ Alkyl group, C １ -C ２０ Alkoxy group, cyclopentyl group, cyclohexyl group, cycloheptyl group, cyclopentenyl group, cyclohexenyl group, phenyl group, pentalenyl group, indenyl group, naphthyl group, azulenyl group, heptalenyl group, indacenyl group, acenaphthyl group, fluorenyl group, spiro-bifluorenyl group, spiro-cyclopentane-fluorenyl group, spiro-cyclohexane-fluorenyl group, spiro-fluorene-benzofluorenyl group, benzofluorenyl group, dibenzofluorenyl group, phenalenyl group, phenanthrenyl group, anthracenyl group, fluoranthenyl group, triphenylenyl group, pyrenyl group, chrysenyl group, naphthacenyl group, picenyl group, perylenyl group, pentaphenyl group, hexacenyl group, pyrrolyl group, imidazolyl group, pyrazolyl group, pyridinyl group, pyrazinyl group, pyrimidinyl group , pyridazinyl group, isoindolyl group, indolyl group, indazolyl group, purinyl group, quinolinyl group, isoquinolinyl group, benzoquinolinyl group, phthalazinyl group, naphthyridinyl group, quinoxalinyl group, quinazolinyl group, cinnolinyl group, carbazolyl group, phenanthridinyl group, acridinyl group, phenanthrolinyl group, phenazinyl group, benzoxazolyl group, benzimidazolyl group, furanyl group, benzofuranyl group, thiophenyl group, benzothiophenyl group, thiazolyl group, isothiazolyl group, benzothiazolyl group, isoxazolyl group, oxazolyl group, triazolyl group, tetrazolyl group, oxadiazolyl group, triazinyl group, benzoxazolyl group, dibenzofuranyl group, dibenzothiophenyl group, benzocarbazolyl group, dibenzocarbazolyl group, dibenzosilolyl group, -Si(Q ３１ ) (Q ３２ ) (Q ３３ ), -N(Q ３１ ) (Q ３２ ) and -B(Q ３１ ) (Q ３２ a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclopentenyl group, a cyclohexenyl group, a phenyl group, a pentalenyl group, an indenyl group, a naphthyl group, an azulenyl group, a heptalenyl group, an indacenyl group, an acenaphthyl group, a fluorenyl group, a spiro-bifluorenyl group, a spiro-cyclopentane-fluorenyl group, a spiro-cyclohexane ... fluorenyl group, spiro-fluorene-benzofluorenyl group, benzofluorenyl group, dibenzofluorenyl group, phenalenyl group, phenanthrenyl group, anthracenyl group, fluoranthenyl group, triphenylenyl group, pyrenyl group, chrysenyl group, naphthacenyl group, picenyl group, perylenyl group, pentaphenyl group, hexacenyl group, pyrrolyl group, imidazolyl group, pyrazolyl group, pyridinyl group, pyrazinyl group, arimidinyl group, a pyridazinyl group, an isoindolyl group, an indolyl group, an indazolyl group, a purinyl group, a quinolinyl group, an isoquinolinyl group, a benzoquinolinyl group, a phthalazinyl group, a naphthyridinyl group, a quinoxalinyl group, a quinazolinyl group, a cinnolinyl group, a carbazolyl group, a phenanthridinyl group, an acridinyl group, a phenanthrolinyl group, a phenazinyl group, a benzoxazolyl group, a benzimidazolyl group, a furanyl group, a benzofuranyl group, a thiophenyl group, a benzothiophenyl group, a thiazolyl group, an isothiazolyl group, a benzothiazolyl group, an isoxazolyl group, an oxazolyl group, a triazolyl group, a tetrazolyl group, an oxadiazolyl group, a triazinyl group, a benzoxazolyl group, a dibenzofuranyl group, a dibenzothiophenyl group, a benzocarbazolyl group, a dibenzocarbazolyl group, and a dibenzosilolyl group; Q ３１ ~Q ３３ are each independently hydrogen, deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazino group, a hydrazono group, C １ -C ６０ Alkyl group, C ２ -C ６０ Alkenyl group, C ２ -C ６０ Alkynyl group, C １ -C ６０ Alkoxy group, C ３ -C １０ Cycloalkyl group, C １ -C １０ Heterocycloalkyl group, C ３ -C １０ Cycloalkenyl group, C １ -C １０ Heterocycloalkenyl group, C ６ -C ６０ Aryl group, C １ -C ６０ 9. The fused ring compound according to claim 8, wherein the fused ring is selected from the group consisting of a heteroaryl group, a monovalent non-aromatic fused polycyclic group, a monovalent non-aromatic hetero-fused polycyclic group, a biphenylyl group, and a terphenylyl group.

13. Ar １ and Ar ２ are each independently selected from the groups represented by the following formulas 5-1 to 5-80. 【Chemistry 10】 【Chemistry 11】 【Chemistry 12】 【Chemistry 13】 【Chemistry 14】 【Chemistry 15】 【Chemistry 16】 【Chemistry 17】 (In Chemical Formula 5-1 to Chemical Formula 5-80, Y ３１ is O, S, C (Z ３３ ) (Z ３４ ), N(Z ３５ ) or Si(Z ３６ ) (Z ３７ ) and Z ３１ ~Z ３７ are each independently hydrogen, deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, C １ -C ２０ Alkyl group, C １ -C ２０ alkoxy group, cyclopentyl group, cyclohexyl group, cycloheptyl group, cyclopentenyl group, cyclohexenyl group, phenyl group, biphenylyl group, naphthyl group, fluorenyl group, spiro-bifluorenyl group, spiro-fluorene-benzofluorenyl group, benzofluorenyl group, dibenzofluorenyl group, phenalenyl group, phenanthrenyl group, anthracenyl group, fluoranthenyl group, triphenylenyl group, pyridinyl group, pyrazinyl group, pyrimidinyl group, quinolinyl group, isoquinolinyl group, benzoquinolinyl group, naphthyridinyl group, quinoxalinyl group, quinazolinyl group, carbazolyl group, phenanthridinyl group, acridinyl group, phenanthrolinyl group, phenazinyl group, triazinyl group, dibenzofuranyl group, dibenzothiophenyl group, dibenzosilolyl group, -Si(Q ３１ ) (Q ３２ ) (Q ３３ ), -N(Q ３１ ) (Q ３２ ) and -B(Q ３１ ) (Q ３２ ) is selected from e2 is selected from 1 and 2; e3 is selected from the group consisting of integers 1 to 3; e4 is selected from the group consisting of integers from 1 to 4; e5 is selected from the group consisting of integers from 1 to 5; e6 is selected from the group consisting of integers from 1 to 6; e7 is selected from the integers 1 to 7; e9 is selected from the group consisting of integers from 1 to 9; Q ３１ ~Q ３３ are, independently of each other, C １ -C ２０ Alkyl group, C １ -C ２０ selected from the group consisting of alkoxy, phenyl, biphenylyl, terphenylyl, naphthyl and pyridinyl; * indicates the bond position to the adjacent atom.)

14. Ar １ and Ar ２ The fused ring compound according to claim 8, wherein each of the groups is independently selected from the groups represented by the following formulas 6-1 to 6-40: 【Chemistry 18】 【Chemistry 19】 【Chemistry 20】 【Chemistry 21】 【Chemical 22】 (In the above Chemical Formula 6-1 to Chemical Formula 6-40, "Ph" represents a phenyl group; * indicates the bond position to the adjacent atom.)

15. In the above formula 2, *-(L １ ) ａ１ - (Ar １ ) ｂ１ and *-(L ２ ) ａ２ - (Ar ２ ) ｂ２ The fused ring compound according to claim 8, wherein the groups represented by the formulas are independently selected from the groups represented by the formulas 7-1 to 7-37 below. 【Chemistry 23】 【Chemistry 24】 【Chemistry 25】 【Chemistry 26】 (In the above Chemical Formula 7-1 to Chemical Formula 7-37, "Ph" represents a phenyl group; * indicates the bond position to the adjacent atom.)

16. X 4-X １１ At least one of C(R ｘ 9. The fused ring compound according to claim 8, wherein

17. X 4-X １１ One of them is C(R ｘ ) and the remainder is C(R ｘ 9. The fused ring compound according to claim 8, wherein the fused ring compound is not a

18. The fused ring compound according to claim 8, which is represented by any one of the following formulas 1-1 to 1-4: 【Chemical 27】 (In the above Chemical Formula 1-1 to Chemical Formula 1-4, X4 is C(R4); ５ is C(R 5 ), and X ６ is C(R 6 ), and X ７ is C(R 7 ), and X ８ is C(R 8 ); X ９ is C(R 9 ), and X １０ is C(R 10 ), and X １１ is C(R 11 ).

19. The fused ring compound according to claim 8, which is represented by any one of the following formulas 1-1A to 1-4A: 【Chemistry 28】

20. The fused ring compound according to claim 8, which is selected from the following compounds 1 to 42, compounds 44 to 62, compounds 64 to 84, compounds 86 to 108, compounds 110 to 166, compounds 168 to 186, and compounds 188 to 225. 【Chemical Formula 29】 【Chemistry 30】 【Chemistry 31】 【Chemistry 32】 【Chemical 33】 【Chemical 34】 【Chemistry 35】 【Chemical 36】 【Chemical 37】 【Chemical 38】

Images