Organic light-emitting devices and electronic devices

Abstract

An organic light-emitting device and an electronic device are disclosed. The organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an organic layer located between the first electrode and the second electrode and including an emission layer, wherein the organic layer includes a first compound represented by Formula 1 and a second compound represented by one selected from Formulas 2-1 to 2-6.

Description

[0001] This application claims priority to and the benefit of Korean Patent Application No. 10-2018-0156274 filed on December 6, 2018, in the Korean Intellectual Property Office, the entire contents of which are incorporated herein by reference. Technical Field

[0002] One or more embodiments relate to an organic light emitting device. Background Art

[0003] An organic light emitting device (OLED) is a self-emitting device that has a wide viewing angle, a high contrast ratio, a short response time, and excellent characteristics in terms of brightness, driving voltage, and response speed, and produces a full-color image compared to other devices.

[0004] For example, an organic light-emitting device may include a first electrode located on a substrate and a hole transport region, an emission layer, an electron transport region, and a second electrode sequentially located on the first electrode. Holes provided from the first electrode may move toward the emission layer through the hole transport region, and electrons provided from the second electrode may move toward the emission layer through the electron transport region. Carriers such as holes and electrons recombine in the emission layer to generate excitons. These excitons then transition (e.g., exciton transition or relaxation) from an excited state to a ground state, thereby generating light. Summary of the invention

[0005] One or more embodiments include an organic light emitting device having high efficiency and long lifetime.

[0006] Additional aspects of the embodiments will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the presented embodiments.

[0007] An aspect of the embodiment provides an organic light-emitting device, comprising: a first electrode; a second electrode facing the first electrode; and an organic layer located between the first electrode and the second electrode and including an emission layer, wherein the organic layer comprises a first compound represented by Formula 1 and a second compound represented by one selected from Formula 2-1 to Formula 2-6:

[0008] Formula 1

[0009]

[0010] In Formula 1 and Formula 2-1 to Formula 2-6,

[0011] X 1 To X 5 can be independently N or C (R 5 ),

[0012] From X1 To X 5 At least one of the selected ones may be C(R 5 ),

[0013] Y 1 and Y 2 can be independently selected from N(R 6 )、C(R 6 )(R 7 )、Si(R 6 )(R 7 )、B(R 6 ), O and S,

[0014] R 1 To R 7 can be independently selected from the group represented by Formula 3 or Formula 4, hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, substituted or unsubstituted C 1 -C 60 Alkyl, substituted or unsubstituted C 2 -C 60 Alkenyl, substituted or unsubstituted C 2 -C 60 Alkynyl, substituted or unsubstituted C 1 -C 60 Alkoxy, substituted or unsubstituted C 3 -C 10 Cycloalkyl, substituted or unsubstituted C 1 -C 10 Heterocycloalkyl, substituted or unsubstituted C 3 -C 10 Cycloalkenyl, substituted or unsubstituted C 1 -C 10 Heterocycloalkenyl, substituted or unsubstituted C 6 -C 60 Aryl, substituted or unsubstituted C 6 -C 60 Aryloxy, substituted or unsubstituted C 6 -C 60 Arylthio, substituted or unsubstituted C 1 -C 60 heteroaryl, substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, 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)(Q 1 ) and -P(=O)(Q 1 )(Q 2 ),

[0015] Among them, from R 1 To R 5 At least one selected from is a group represented by Formula 3 or Formula 4,

[0016] X 11 To X 18 can be independently N or C (R 13 ),

[0017] Y 11 and Y 12 can be independently selected from N(R 14 )、C(R 14 )(R 15 )、Si(R 14 )(R 15 )、B(R 14 ), O and S,

[0018] R 11 To R 15 can be independently selected from the group represented by Formula 4, hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, substituted or unsubstituted C 1 -C 60 Alkyl, substituted or unsubstituted C 2 -C 60 Alkenyl, substituted or unsubstituted C 2 -C 60 Alkynyl, substituted or unsubstituted C 1 -C 60 Alkoxy, substituted or unsubstituted C 3 -C 10 Cycloalkyl, substituted or unsubstituted C 1 -C 10 Heterocycloalkyl, substituted or unsubstituted C 3 -C 10 Cycloalkenyl, substituted or unsubstituted C 1 -C 10 Heterocycloalkenyl, substituted or unsubstituted C 6 -C 60 Aryl, substituted or unsubstituted C 6 -C 60 Aryloxy, substituted or unsubstituted C 6 -C 60 Arylthio, substituted or unsubstituted C 1 -C 60heteroaryl, substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, 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)(Q 1 ) and -P(=O)(Q 1 )(Q 2 ),

[0019] From R 1 To R 7 Select two adjacent groups and from R 11 To R 15 Two adjacent groups selected from the group consisting of may be optionally linked to form a substituted or unsubstituted C 3 -C 60 Carbocyclic or substituted or unsubstituted C 1 -C 60 Heterocyclic group,

[0020] Substituted C 3 -C 60 Carbocyclic, substituted C 5 -C 60 Carbocyclic, substituted C 1 -C 60 Heterocyclic, substituted C 1 -C 60 Alkyl, substituted C 2 -C 60 Alkenyl, substituted C 2 -C 60 Alkynyl, substituted C 1 -C 60 Alkoxy, substituted C 3 -C 10 Cycloalkyl, substituted C 1 -C 10 Heterocycloalkyl, substituted C 3 -C 10 Cycloalkenyl, substituted C 1 -C 10 Heterocycloalkenyl, substituted C 6 -C 60 Aryl, substituted C 6 -C 60 Aryloxy, substituted C 6 -C 60 Arylthio, substituted C 1 -C60 At least one substituent in the heteroaryl group, the substituted monovalent non-aromatic condensed polycyclic group and the substituted monovalent non-aromatic condensed heteropolycyclic group may be selected from:

[0021] Deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C 1 -C 60 Alkyl, C 2 -C 60 Alkenyl, C 2 -C 60 Alkynyl and C 1 -C 60 Alkoxy;

[0022] are substituted with deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C 3 -C 10 Cycloalkyl, C 1 -C 10 Heterocycloalkyl, C 3 -C 10 Cycloalkenyl, C 1 -C 10 Heterocycloalkenyl, C 6 -C 60 Aryl, C 6 -C 60 Aryloxy, C 6 -C 60 Arylthio, C 1 -C 60 Heteroaryl, 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 ) selected from at least one of C 1 -C 60 Alkyl, C 2 -C 60 Alkenyl, C 2 -C 60 Alkynyl and C 1 -C 60 Alkoxy;

[0023] C 3 -C10 Cycloalkyl, C 1 -C 10 Heterocycloalkyl, C 3 -C 10 Cycloalkenyl, C 1 -C 10 Heterocycloalkenyl, C 6 -C 60 Aryl, C 6 -C 60 Aryloxy, C 6 -C 60 Arylthio, C 1 -C 60 Heteroaryl groups, monovalent non-aromatic condensed polycyclic groups and monovalent non-aromatic condensed heteropolycyclic groups;

[0024] are substituted with deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C 1 -C 60 Alkyl, C 2 -C 60 Alkenyl, C 2 -C 60 Alkynyl, C 1 -C 60 Alkoxy, C 3 -C 10 Cycloalkyl, C 1 -C 10 Heterocycloalkyl, C 3 -C 10 Cycloalkenyl, C 1 -C 10 Heterocycloalkenyl, C 6 -C 60 Aryl, C 6 -C 60 Aryloxy, C 6 -C 60 Arylthio, C 1 -C 60 Heteroaryl, 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 ) selected from at least one of C 3 -C10 Cycloalkyl, C 1 -C 10 Heterocycloalkyl, C 3 -C 10 Cycloalkenyl, C 1 -C 10 Heterocycloalkenyl, C 6 -C 60 Aryl, C 6 -C 60 Aryloxy, C 6 -C 60 Arylthio, C 1 -C 60 Heteroaryl groups, monovalent non-aromatic condensed polycyclic groups, and monovalent non-aromatic condensed heteropolycyclic groups; and

[0025] -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 ),

[0026] In equation 3 and equation 4,

[0027] L 1 , L 2 , L 11 and L 21 can be independently selected from substituted or unsubstituted C 5 -C 60 Carbocyclic group and substituted or unsubstituted C 1 -C 60 Heterocyclic group,

[0028] a1, a2, a11 and a21 may each independently be an integer from 0 to 5,

[0029] p and q may each independently be an integer from 1 to 3,

[0030] Ar 1 To Ar 3 can be independently selected from substituted or unsubstituted C 6 -C 60 Aryl, substituted or unsubstituted C 6 -C 60 Aryloxy, substituted or unsubstituted C 6 -C 60Arylthio, substituted or unsubstituted C 1 -C 60 heteroaryl, substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, 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)(Q 1 ) and -P(=O)(Q 1 )(Q 2 ),

[0031] In Formula 1, Formula 2-1 to Formula 2-6, Formula 3 and Formula 4,

[0032] Q 1 To Q 3 , Q 11 To Q 13 , Q 21 To Q 23 and Q 31 To Q 33 can be independently selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C 1 -C 60 Alkyl, C 2 -C 60 Alkenyl, C 2 -C 60 Alkynyl, C 1 -C 60 Alkoxy, C 3 -C 10 Cycloalkyl, C 1 -C 10 Heterocycloalkyl, C 3 -C 10 Cycloalkenyl, C 1 -C 10 Heterocycloalkenyl, C 6 -C 60 Aryl, C 1 -C 60 heteroaryl, monovalent non-aromatic condensed polycyclic group, monovalent non-aromatic condensed heteropolycyclic group, biphenyl group and terphenyl group, and

[0033] *Indicates the binding site with the adjacent atom.

[0034] Another aspect of the embodiment provides an electronic device including an organic light emitting device and a thin film transistor, wherein a first electrode of the organic light emitting device is in electrical contact with one selected from a source electrode and a drain electrode of the thin film transistor. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] These and / or other aspects of the embodiments will become apparent and more easily understood through the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0036] Figure 1 is a schematic diagram of an organic light emitting device according to an embodiment. DETAILED DESCRIPTION

[0037] The subject matter of the present disclosure will now be more fully described with reference to exemplary embodiments. However, the subject matter of the present disclosure can be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein; on the contrary, these embodiments are provided so that the present disclosure will be thorough and complete, and will fully convey the disclosed concepts to those skilled in the art. The features of the embodiments of the present disclosure and how to implement them will become apparent by reference to the embodiments and drawings that will be described in more detail below. However, the subject matter of the present disclosure can be implemented in many different forms and should not be limited to the exemplary embodiments.

[0038] Hereinafter, the embodiments are described in more detail by referring to the accompanying drawings, and in the drawings, like reference numerals denote like elements and redundant descriptions thereof will not be repeated here.

[0039] As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

[0040] It will also be understood that the terms “comprises / includes” and / or variations thereof as used herein specify the presence of stated features or components, but do not preclude the presence or addition of one or more other features or components.

[0041] It will be understood that when a layer, region or component is referred to as being "on" or "to" another layer, region or component, the layer, region or component may be formed directly or indirectly on the other layer, region or component. For example, there may be intervening layers, regions or components.

[0042] For the convenience of explanation, the size of the components in the drawings may be exaggerated. In other words, since the size and thickness of the components in the drawings may be arbitrarily shown for the convenience of explanation, the following embodiments of the present disclosure are not limited thereto.

[0043] The organic light emitting device according to the embodiment may include: a first electrode; a second electrode facing the first electrode; and an organic layer located between the first electrode and the second electrode and including an emission layer,

[0044] The organic layer may include a first compound represented by Formula 1 and a second compound represented by one selected from Formula 2-1 to Formula 2-6:

[0045]

[0046]

[0047] In formula 1,

[0048] X 1 To X 5 can be independently N or C (R 5 ), and from X 1 To X 5 At least one of the selected 5 ).

[0049] In one embodiment, X 1 It can be C(R 5 ).

[0050] For example, i)X 1 and X 3 To X 5 Can be C(R 5 ), and X 2 It can be N,

[0051] ii)X 1 To X 3 and X 5 Can be C(R 5 ), and X 4 It can be N,

[0052] iii)X 1 To X 4 Can be C(R 5 ), and X 5 It can be N,

[0053] iv)X 1 , X 4 and X 5 Can be C(R 5 ), and X 2 and X 3 Can be all N, or

[0054] v)X 1 and X 4 Can be C(R5 ), and X 2 , X 3 and X 5 They may all be N, but the embodiments of the present disclosure are not limited thereto.

[0055] In formula 1, Y 1 and Y 2 can be independently selected from N(R 6 )、C(R 6 )(R 7 )、Si(R 6 )(R 7 )、B(R 6 ), O and S.

[0056] In one embodiment, Y 1 and Y 2 Can be C(R 6 )(R 7 ), and R 6 and R 7 Can be C 1 -C 20 alkyl.

[0057] For example, Y 1 and Y 2 Can be C(R 6 )(R 7 ), and R 6 and R 7 They may all be methyl groups.

[0058] In formula 1, R 1 To R 7 can be independently selected from the group represented by Formula 3 or Formula 4, hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, substituted or unsubstituted C 1 -C 60 Alkyl, substituted or unsubstituted C 2 -C 60 Alkenyl, substituted or unsubstituted C 2 -C 60 Alkynyl, substituted or unsubstituted C 1 -C 60 Alkoxy, substituted or unsubstituted C 3 -C 10 Cycloalkyl, substituted or unsubstituted C 1 -C 10 Heterocycloalkyl, substituted or unsubstituted C 3 -C 10 Cycloalkenyl, substituted or unsubstituted C 1 -C 10Heterocycloalkenyl, substituted or unsubstituted C 6 -C 60 Aryl, substituted or unsubstituted C 6 -C 60 Aryloxy, substituted or unsubstituted C 6 -C 60 Arylthio, substituted or unsubstituted C 1 -C 60 heteroaryl, substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, 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)(Q 1 ) and -P(=O)(Q 1 )(Q 2 ).

[0059] In an embodiment, from R 1 To R 7 Two adjacent groups selected from the group consisting of may be optionally linked to form a substituted or unsubstituted C 3 -C 60 Carbocyclic or substituted or unsubstituted C 1 -C 60 Heterocyclic group.

[0060] In one embodiment, R 1 To R 7 Can be independently selected from:

[0061] A group represented by Formula 3 or Formula 4, hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, methyl, ethyl, propyl, isobutyl, sec-butyl, tert-butyl, pentyl, isopentyl, hexyl, C 1 -C 20 alkoxy, cyclopentyl, cyclohexyl, cycloheptyl, cyclopentenyl, cyclohexenyl, phenyl, naphthyl, fluorenyl, spirobifluorenyl, spirofluorene-benzofluorenyl, benzofluorenyl, dibenzofluorenyl, pyrenyl, phenalenyl, phenanthrenyl, anthracenyl, fluoranthenyl, benzo[9,10]phenanthrenyl, pyrrolyl, thienyl, furanyl, thirolyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, pyridinyl, pyrimidinyl, quinolyl, isoquinolyl, benzoquinolyl, naphthyridinyl, quinoxalinyl, quinazolinyl, carbazolyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, triazinyl, dibenzofuranyl, dibenzothienyl, biphenyl and terphenyl; and

[0062] are substituted with deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, methyl, ethyl, propyl, isobutyl, sec-butyl, tert-butyl, pentyl, isopentyl, hexyl, C 1 -C 20 Alkoxy, cyclopentyl, cyclohexyl, cycloheptyl, cyclopentenyl, cyclohexenyl, phenyl, naphthyl, fluorenyl, spirobifluorenyl, spirofluorene-benzofluorenyl, benzofluorenyl, dibenzofluorenyl, pyrenyl, phenanthene, phenanthrenyl, anthracenyl, fluoranthenyl, benzo[9,10]phenanthrenyl, pyrrolyl, thienyl, furanyl, thirol, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, pyridinyl, pyrazinyl, pyrimidinyl, pyridazinyl, indolyl, isoindolyl, indazolyl, purinyl, quinolyl, isoquinolyl, benzoquinolyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, phenyl a benzofuranyl group, a benzothiophenyl group, a benzothiorolyl group, an isobenzothiazolyl group, a benzoxazolyl group, an isobenzoxazolyl group, a triazolyl group, a tetrazolyl group, an oxadiazolyl group, a triazinyl group, a dibenzofuranyl group, a dibenzothiophenyl group, a dibenzothiorolyl group, a carbazolyl group, a benzocarbazolyl group, a dibenzocarbazolyl group, a thiadiazolyl group, an imidazopyridyl group, an imidazopyrimidyl group, an oxazolopyridyl group, a thiazopyridyl group, a benzonaphthyridinyl group, an azafluorenyl group, an azaspirobifluorenyl group, an azacarbazolyl group, an azadibenzofuranyl group, an azadibenzothiophenyl group, an azadibenzothiorolyl group, a methyl group, an ethyl group, a propyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, a pentyl group, an isopentyl group, a hexyl group, a C 1 -C 20 Alkoxy, cyclopentyl, cyclohexyl, cycloheptyl, cyclopentenyl, cyclohexenyl, phenyl, naphthyl, fluorenyl, spirobifluorenyl, spirofluorene-benzofluorenyl, benzofluorenyl, dibenzofluorenyl, pyrenyl, phenalenyl, phenanthrenyl, anthracenyl, fluoranthenyl, benzo[9,10]phenanthrenyl, pyrrolyl, thienyl, furanyl, thirolyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, pyridinyl, pyrazinyl, pyrimidinyl, pyridazinyl, indolyl, isoindolyl, indazolyl, purinyl, quinolyl, isoquinolyl, benzoquinolyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, benzofuranyl, benzothienyl, benzothiolaryl, isobenzothiazolyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, oxadiazolyl, triazinyl, dibenzofuranyl, dibenzothienyl, dibenzothiolaryl, carbazolyl, benzocarbazolyl, dibenzocarbazolyl, thiadiazolyl, imidazopyridyl, imidazopyrimidyl, oxazolopyridyl, thiazolopyridyl, benzonaphthyridinyl, azafluorenyl, azaspirobifluorenyl, azacarbazolyl, azadibenzofuranyl, azadibenzothienyl, azadibenzothiolaryl, biphenyl and terphenyl.

[0063] In one embodiment, from R 1 To R 5 At least one selected from the group may be a group represented by Formula 3 or Formula 4.

[0064] In one embodiment, R 5 The group may be a group represented by Formula 3 or Formula 4.

[0065] For example, R 1 , R 2 and R 4 can be independently hydrogen, R 3 It can be hydrogen or C 1 -C 20 Alkyl, and R 5 It may be a group represented by Formula 3 or Formula 4, but the embodiments of the present disclosure are not limited thereto.

[0066] In equations 3 and 4, L 1 , L 2 , L 11 and L 21 can be independently selected from substituted or unsubstituted C 5 -C 60 Carbocyclic group and substituted or unsubstituted C 1 -C 60 Heterocyclic group.

[0067] In one embodiment, L 1 , L 2 , L 11 and L 21 Can be independently selected from:

[0068] Phenylene, cyclopentadienylene, indenylene, naphthylene, azulenylene, heptalenylene, indacenylene, acenaphthenylene, fluorenylene, spirobifluorenylene, benzofluorenylene, dibenzofluorenylene, phenanthrenylene, phenanthrenylene, anthracenylene, fluoranthenylene, benzo[9,10]phenanthrenylene, pyrenylene, pyrenylene phenylene, tetraphenylene, perylene, perylene, pentaphenylene, hexaphenylene, pentaphenylene, rubinylene, coronenylidene, ovaphenylene, pyrrolylene, thienylene, furanylene, imidazolylene, pyrazolylene, thiazolylene, isothiazolylene, oxazolylene, isoxazolylene, pyridinylene, pyrazinylene, pyrimidinylene, pyridazinylene, triazinylene, isoindolylene, indolylene, indazolylene, purinylene, quinolylene, isoquinolylene, benzoquinolylene, quinoxalylene, quinazolinylene, benzoquinolylene oxalinyl, benzoquinazolinyl, phthalazinyl, naphthyridinyl, cinnolinyl, carbazolyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, benzofuranyl, benzothiophenylene, isobenzothiazolyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, oxadiazolyl, dibenzofuranyl, dibenzothiophenylene, dibenzothiosilyl, benzocarbazolyl, dibenzocarbazolyl, thiadiazolyl, imidazopyridinyl, and imidazopyrimidinyl; and

[0069] are substituted with deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C 1 -C 20 Alkyl, C 1 -C 20 Alkoxy, cyclopentyl, cyclohexyl, cycloheptyl, cyclopentenyl, cyclohexenyl, phenyl, biphenyl, terphenyl, pentalenyl, indenyl, naphthyl, azulenyl, heptalenyl, indacenyl, acenaphthenyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthrenyl, phenanthrenyl, anthracenyl, fluoranthenyl, benzo[9,10]phenanthrenyl, pyrenyl, phenyl, tetraphenyl, peryl, peryl, pentaphenyl, hexaphenyl, pentacene, rubinyl, corynyl, ovaphenyl, pyrrolyl, thienyl, furanyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, pyridinyl, pyrazinyl, pyrimidinyl, pyridazinyl, isoindolyl, indolyl, indazolyl, purinyl, quinolyl, isoquinolyl, benzoquinolyl, phthalazinyl, naphthyridinyl, quinoxalinyl, benzoquinoxalinyl, quinazole quinolinyl, cinnolinyl, carbazolyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, benzofuranyl, benzothiophenyl, isobenzothiazolyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, oxadiazolyl, triazine, dibenzofuranyl, dibenzothiophenyl, dibenzothiophenyl, benzothiazolyl, benzocarbazolyl, dibenzocarbazolyl, thiadiazolyl, imidazopyridinyl, imidazopyrimidinyl, -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 ) is at least one selected from phenylene, cyclopentadienylene, indenylene, naphthylene, azulenylene, heptalene, indacenylene, acenaphthenylene, fluorenylene, spirobifluorenylene, benzofluorenylene, dibenzofluorenylene, phenanthrenylene, phenanthrenylene, anthracenylene, fluoranthenylene, benzo[9,10]phenanthrenylene, pyrenylene, pyrenylene phenylene, tetraphenylene, perylene, perylene, pentaphenylene, hexaphenylene, pentaphenylene, rubinylene, coronenylidene, ovaphenylene, pyrrolylene, thienylene, furanylene, imidazolylene, pyrazolylene, thiazolylene, isothiazolylene, oxazolylene, isoxazolylene, pyridinylene, pyrazinylene, pyrimidinylene, pyridazinylene, triazinylene, isoindolylene, indolylene, indazolylene, purinylene, quinolylene, isoquinolylene, benzoquinolylene, quinoxalylene, quinazolinylene, benzoquinolylene oxalinyl, benzoquinazolinyl, phthalazinyl, naphthyridinyl, cinnolinyl, carbazolyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, benzofuranyl, benzothiophenylene, isobenzothiazolyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, oxadiazolyl, dibenzofuranyl, dibenzothiophenylene, dibenzothiosilyl, benzocarbazolyl, dibenzocarbazolyl, thiadiazolyl, imidazopyridinyl, and imidazopyrimidinyl, and

[0070] Q 31 To Q 33 can be independently selected from C 1 -C 10 Alkyl, C 1 -C 10 Alkoxy, phenyl, substituted with C 1 -C 10 Alkyl groups include phenyl, biphenyl, terphenyl and naphthyl.

[0071] In one embodiment, L 1 , L 2 , L 11 and L 21 They may be independently selected from the groups represented by Formula 3-1 to Formula 3-33:

[0072]

[0073]

[0074] In Formula 3-1 to Formula 3-33,

[0075] Y 1 Can be selected from C(Z 4 )(Z 5 )、N(Z 6 )、Si(Z 7 )(Z 8 ), O and S,

[0076] Z 1 To Z 8 can be independently selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, C 1 -C 20 Alkyl, C 1 -C 20 Alkoxy, cyclopentyl, cyclohexyl, cycloheptyl, cyclopentenyl, cyclohexenyl, phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthryl, anthracenyl, fluoranthenyl, pyrenyl, yl, pyrrolyl, thienyl, furanyl, thiolyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, pyridinyl, pyrazinyl, pyrimidinyl, pyridazinyl, benzofuranyl, benzothienyl, benzothiolyl, benzimidazolyl, dibenzothiolyl and -Si(Q) 31 )(Q 32 )(Q 33 ),and

[0077] Q 31 To Q 33 can be independently selected from C 1 -C 20 Alkyl, C 1 -C 20 Alkoxy, phenyl, biphenyl, terphenyl, naphthyl and pyridyl,

[0078] d2 can be an integer from 0 to 2,

[0079] d3 can be an integer from 0 to 3,

[0080] d4 can be an integer from 0 to 4,

[0081] d5 can be an integer from 0 to 5,

[0082] d6 can be an integer from 0 to 6,

[0083] d8 can be an integer from 0 to 8, and

[0084] *, *' and *" all indicate the binding sites with adjacent atoms.

[0085] In Formula 3 and Formula 4, a1, a2, a11, and a21 may each independently be an integer of 0 to 5.

[0086] a1 means L 1 When a1 is two or more, two or more L 1 can be the same or different from each other. When a1 is 0, L 1 represents a single bond. a2, a11 and a21 may each independently be the same as described in conjunction with a1.

[0087] In one embodiment, a1 may be an integer from 1 to 3.

[0088] For example, a1 may be an integer from 1 to 3, and a2, a11, and a21 may each independently be an integer from 0 to 3.

[0089] In Formula 3 and Formula 4, p and q may each independently be an integer of 1 to 3.

[0090] p represents The number of parts represented by q is represented by *-(L 2 ) a2 -Ar 3 represents the number of parts, wherein, when p or q is two or greater, two or more corresponding parts may be the same as or different from each other.

[0091] In Formula 3 and Formula 4, Ar 1 To Ar 3 can be independently selected from substituted or unsubstituted C 6 -C 60 Aryl, substituted or unsubstituted C 6 -C 60 Aryloxy, substituted or unsubstituted C 6 -C 60 Arylthio, substituted or unsubstituted C 1 -C 60 heteroaryl, substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, 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)(Q 1 ) and -P(=O)(Q 1 )(Q 2 ).

[0092] In one embodiment, Ar 1 To Ar 3 Can be independently selected from:

[0093] Phenyl, biphenyl, terphenyl, pentalenyl, indenyl, naphthyl, azulenyl, heptalenyl, indacenyl, acenaphthenyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthenyl, phenanthrenyl, anthracenyl, fluoranthenyl, benzo[9,10]phenanthrenyl, pyrenyl, phenyl, tetraphenyl, peryl, peryl, pentaphenyl, hexaphenyl, pentacene, rubinyl, corynyl, ovalenyl, pyrrolyl, thienyl, furanyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, pyridinyl, pyrazinyl, pyrimidinyl, pyridazinyl, isoindolyl, indolyl, indazolyl, purinyl, quinolyl, isoquinolyl, benzoquinolyl, phthalazinyl, naphthyridinyl, quinoxalinyl, benzoquinoxalinyl, Quinazolinyl, benzoquinazolinyl, cinnolinyl, carbazolyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, benzofuranyl, benzothiophenyl, isobenzothiazolyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, oxadiazolyl, triazinyl, dibenzofuranyl, dibenzothiophenyl, dibenzothioyl, benzocarbazolyl, dibenzocarbazolyl, thiadiazolyl, imidazopyridinyl and imidazopyrimidinyl;

[0094] are substituted with deuterium, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C 1 -C 20 Alkyl, C 1 -C 20 Alkoxy, cyclopentyl, cyclohexyl, cycloheptyl, cyclopentenyl, cyclohexenyl, phenyl, biphenyl, terphenyl, pentalenyl, indenyl, naphthyl, azulenyl, heptalenyl, indacenyl, acenaphthenyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthrenyl, phenanthrenyl, anthracenyl, fluoranthenyl, benzo[9,10]phenanthrenyl, pyrenyl, phenyl, tetraphenyl, peryl, peryl, pentaphenyl, hexaphenyl, pentacene, rubinyl, corynyl, ovaphenyl, pyrrolyl, thienyl, furanyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, pyridinyl, pyrazinyl, pyrimidinyl, pyridazinyl, isoindolyl, indolyl, indazolyl, purinyl, quinolyl, isoquinolyl, benzoquinolyl, phthalazinyl, naphthyridinyl, quinoxalinyl, benzoquinoxalinyl, quinazole quinolinyl, cinnolinyl, carbazolyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, benzofuranyl, benzothiophenyl, isobenzothiazolyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, oxadiazolyl, triazine, dibenzofuranyl, dibenzothiophenyl, dibenzothiophenyl, benzothiazolyl, benzocarbazolyl, dibenzocarbazolyl, thiadiazolyl, imidazopyridinyl, imidazopyrimidinyl, -N(Q 31 )(Q 32 )、-Si(Q 31 )(Q 32 )(Q 33 ) and -P(=O)(Q 31 )(Q 32 ) is at least one selected from phenyl, biphenyl, terphenyl, pentalenyl, indenyl, naphthyl, azulenyl, heptalenyl, indacenyl, acenaphthenyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenaltenyl, phenanthrenyl, anthracenyl, fluoranthenyl, benzo[9,10]phenanthrenyl, pyrenyl, phenyl, tetraphenyl, peryl, peryl, pentaphenyl, hexaphenyl, pentacene, rubinyl, camphenyl, ovaphenyl, pyrrolyl, thienyl, furanyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, pyridinyl, pyrazinyl, pyrimidinyl, pyridazinyl, isoindolyl, indolyl, indazolyl, purinyl, quinolyl, isoquinolyl, benzoquinolyl, phthalazinyl, naphthyridinyl, quinoxalinyl, benzoquinoxalinyl, quinoline oxazolinyl, benzoquinazolinyl, cinnolinyl, carbazolyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, benzofuranyl, benzothiophenyl, isobenzothiazolyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, oxadiazolyl, triazinyl, dibenzofuranyl, dibenzothiophenyl, dibenzothiorolyl, benzocarbazolyl, dibenzocarbazolyl, thiadiazolyl, imidazopyridinyl, and imidazopyrimidinyl; and

[0095] -N(Q 1 )(Q 2 )、-B(Q 1 )(Q 2 )、-S(=O) 2 (Q 1 ) and -P(=O)(Q 1 )(Q 2 ),and

[0096] Q 1 , Q 2 and Q 31 To Q 33 can be independently selected from C 1 -C 20 Alkyl, C 1 -C 20 Alkoxy, phenyl, biphenyl, terphenyl, naphthyl and pyridyl.

[0097] For example, Ar 1 To Ar 3 Each may be independently a group represented by one selected from Formula 4-1 to Formula 4-26, but the embodiments of the present disclosure are not limited thereto:

[0098]

[0099]

[0100] In equations 4-1 to 4-26,

[0101] Y 31 Can be selected from C(Z 34 )(Z 35 )、N(Z 36 )、Si(Z 37 )(Z 38 ), O and S,

[0102] Z 31 To Z 38 can be independently selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C 1 -C 20 Alkyl, C 1 -C 20 alkoxy, phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, anthracenyl, phenanthryl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, pyridinyl, pyrazinyl, pyrimidinyl, pyridazinyl, indazolyl, purinyl, quinolyl, isoquinolyl, benzoquinolyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, isobenzothiazolyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, oxadiazolyl, triazinyl, thiadiazolyl, imidazopyridinyl, imidazopyrimidinyl and azacarbazolyl,

[0103] e3 can be an integer from 0 to 3,

[0104] e4 can be an integer from 0 to 4,

[0105] e5 can be an integer from 0 to 5,

[0106] e6 can be an integer from 0 to 6,

[0107] e7 can be an integer from 0 to 7, and

[0108] *Indicates the binding site with the adjacent atom.

[0109] In one embodiment, the first compound may be represented by one selected from Formula 1-1 to Formula 1-8:

[0110]

[0111] In Formula 1-1 to Formula 1-8,

[0112] R 1 To R 4 can be independently the same as described above, R 5a To R 5d , R 6a , R 6b , R 7a and R 7b can be independently combined with R 5 To R 7 Same as described, and

[0113] * represents a bonding position to the group represented by Formula 3 or Formula 4.

[0114] In equations 2-1 to 2-6, X 11 To X 18 can be independently N or C (R 13 ).

[0115] In one embodiment, X 11 To X 18 Can be C(R 13 ).

[0116] In Formula 2-1 to Formula 2-6, Y 11 and Y 12 can be independently selected from N(R 14 )、C(R 14 )(R 15 )、Si(R 14 )(R 15 )、B(R 14 ), O and S.

[0117] In one embodiment, Y 11 It can be N(R 14 ), Y 12 It can be C(R 14 )(R 15) or Si(R 14 )(R 15 ).

[0118] In Formula 2-1 to Formula 2-6, R 11 To R 15 can be independently selected from the group represented by Formula 4, hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, substituted or unsubstituted C 1 -C 60 Alkyl, substituted or unsubstituted C 2 -C 60 Alkenyl, substituted or unsubstituted C 2 -C 60 Alkynyl, substituted or unsubstituted C 1 -C 60 Alkoxy, substituted or unsubstituted C 3 -C 10 Cycloalkyl, substituted or unsubstituted C 1 -C 10 Heterocycloalkyl, substituted or unsubstituted C 3 -C 10 Cycloalkenyl, substituted or unsubstituted C 1 -C 10 Heterocycloalkenyl, substituted or unsubstituted C 6 -C 60 Aryl, substituted or unsubstituted C 6 -C 60 Aryloxy, substituted or unsubstituted C 6 -C 60 Arylthio, substituted or unsubstituted C 1 -C 60 heteroaryl, substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, 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)(Q 1 ) and -P(=O)(Q 1 )(Q 2 ).

[0119] In an embodiment, from R 11 To R 15 Two adjacent groups selected from the group consisting of may be optionally linked to form a substituted or unsubstituted C 3 -C 60Carbocyclic or substituted or unsubstituted C 1 -C 60 Heterocyclic group.

[0120] In one embodiment, R 11 To R 15 may be independently selected from hydrogen, phenyl, 1-naphthyl, 2-naphthyl and groups represented by Formula 10-1 to Formula 10-110:

[0121]

[0122]

[0123] In one embodiment, the first compound can be selected from Compound 1 to Compound 47:

[0124]

[0125]

[0126]

[0127] In one embodiment, the second compound can be selected from compound TC1 to compound TC12:

[0128]

[0129] In compounds TC1 to TC12, R 11 , R 12 , Three Rs 13a and the four Rs 13b The groups may be each independently selected from hydrogen, a phenyl group, a 1-naphthyl group, a 2-naphthyl group, and a group represented by one of Formulae 10-1 to 10-110.

[0130] When the first compound is used as a single host, the luminance of the blue organic light emitting device is excellent, but its efficiency characteristics and life characteristics are low. When the second compound is used as a single host, the efficiency of the blue organic light emitting device is high, but its driving voltage increases.

[0131] When the first compound and the second compound are mixed or co-deposited to form an emission layer of an organic light-emitting device according to an embodiment of the present disclosure, hole injection characteristics and electron injection characteristics are improved, and an exciplex is formed to improve charge balance in the emission layer, thereby improving both efficiency and lifetime.

[0132] Another aspect of the embodiment provides an organic light-emitting device, which includes: a first electrode; a second electrode facing the first electrode; and an organic layer located between the first electrode and the second electrode and including an emission layer, wherein the organic layer includes a first compound represented by Formula 1 and a second compound represented by one selected from Formula 2-1 to Formula 2-6.

[0133] In one embodiment, the first electrode may be an anode.

[0134] In one embodiment, the second electrode may be a cathode.

[0135] In one embodiment, the first electrode may be an anode and the second electrode may be a cathode.

[0136] In one embodiment, the organic light emitting device may further include a hole transport region between the first electrode and the emission layer and an electron transport region between the emission layer and the second electrode.

[0137] In one embodiment, the hole transport region may include at least one selected from a hole injection layer, a hole transport layer, a buffer layer, an emission assisting layer, and an electron blocking layer.

[0138] In one embodiment, the electron transport region may include at least one selected from a hole blocking layer, an electron transport layer, and an electron injection layer.

[0139] In one embodiment, the hole transport region may include an amine compound.

[0140] In one embodiment, the emission layer may include a first compound and a second compound.

[0141] For example, the emission layer may include the first compound and the second compound in a weight ratio of 1:9 to 9:1. For example, the emission layer may include the first compound and the second compound in a weight ratio of 2:8 to 9:1. For example, the emission layer may include the first compound and the second compound in a weight ratio of 3:7 to 8:1. For example, the emission layer may include the first compound and the second compound in a weight ratio of 4:6 to 8:1. For example, the emission layer may include the first compound and the second compound in a weight ratio of 5:5 to 8:1. For example, the emission layer may include the first compound and the second compound in a weight ratio of 5:4 to 8:1.

[0142] In one embodiment, the amount of the first compound in the emission layer may be greater than the amount of the second compound based on the weight of the first compound and the second compound. For example, the emission layer may include the first compound and the second compound in a weight ratio of 5:4 to 8:1.

[0143] When the amount of the second compound is greater than that of the first compound, driving voltage may increase and lifespan may decrease.

[0144] In one embodiment, the emission layer may emit green light having a maximum emission wavelength of about 490 nm to about 580 nm.

[0145] In one embodiment, the emission layer may further include a dopant, and the dopant may include a phosphorescent dopant or a fluorescent dopant.

[0146] In one embodiment, the electron transport region may include a metal-containing material.

[0147] Another aspect of the embodiment provides an electronic device including an organic light emitting device and a thin film transistor, wherein a first electrode of the organic light emitting device is in electrical contact with one selected from a source electrode and a drain electrode of the thin film transistor.

[0148] The term "organic layer" used herein refers to a single layer and / or multiple layers located between the first electrode and the second electrode of the organic light-emitting device. The material included in the "organic layer" is not limited to an organic material. For example, the organic layer may include an inorganic material.

[0149] Figure 1 Description

[0150] Figure 1 is a schematic cross-sectional view of an organic light emitting device 10 according to an embodiment. The organic light emitting device 10 includes a first electrode 110 , an organic layer 150 , and a second electrode 190 .

[0151] In the following, we will combine Figure 1 A structure of an organic light emitting device 10 according to an embodiment and a method of manufacturing the organic light emitting device 10 according to an embodiment are described.

[0152] First electrode 110

[0153] exist Figure 1 In the embodiment, a substrate may be additionally disposed below the first electrode 110 or above the second electrode 190. To be used as a substrate, the substrate may be a glass substrate or a plastic substrate, each of which has excellent mechanical strength, thermal stability, transparency, surface flatness, ease of handling, and waterproofness.

[0154] The first electrode 110 may be formed by depositing or sputtering a material for forming the first electrode 110 on a substrate. When the first electrode 110 is an anode, the material for forming the first electrode 110 may be selected from materials having a high work function to facilitate hole injection.

[0155] The first electrode 110 may be a reflective electrode, a semi-reflective electrode or a transmissive electrode. When the first electrode 110 is a transmissive electrode, the material used to form the first electrode 110 may be selected from indium tin oxide (ITO), indium zinc oxide (IZO), tin oxide (SnO2 ), zinc oxide (ZnO), and any combination thereof, but the embodiments of the present disclosure are not limited thereto. In one or more embodiments, when the first electrode 110 is a semi-reflective electrode or a reflective electrode, the material used to form the first electrode 110 may be selected from 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 the embodiments of the present disclosure are not limited thereto.

[0156] The first electrode 110 may have a single-layer structure or a multi-layer structure including two or more layers. For example, the first electrode 110 may have a three-layer structure of ITO / Ag / ITO, but the structure of the first electrode 110 is not limited thereto.

[0157] Organic layer 150

[0158] The organic layer 150 is located on the first electrode 110. The organic layer 150 may include an emission layer.

[0159] The organic layer 150 may further include a hole transport region between the first electrode 110 and the emission layer and an electron transport region between the emission layer and the second electrode 190 .

[0160] [Hole Transport Region in Organic Layer 150]

[0161] The hole transport region may have: i) a single layer structure including a single layer including a single material; ii) a single layer structure including a single layer including a plurality of different materials; or iii) a multilayer structure having a plurality of layers including a plurality of different materials.

[0162] The hole transport region may include at least one layer selected from a hole injection layer, a hole transport layer, an emission auxiliary layer, and an electron blocking layer.

[0163] For example, the hole transport region may have a single-layer structure or a multi-layer structure, wherein the single-layer structure includes a single layer comprising a plurality of different materials, and the multi-layer structure has a hole injection layer / hole transport layer structure, a hole injection layer / hole transport layer / emission auxiliary layer structure, a hole injection layer / emission auxiliary layer structure, a hole transport layer / emission auxiliary layer structure or a hole injection layer / hole transport layer / emission auxiliary layer structure, wherein, for each structure, the constituent layers are stacked sequentially from the first electrode 110 in the order stated, but the structure of the hole transport region is not limited thereto.

[0164] 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"-tri(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 Formula 201, and a compound represented by Formula 202:

[0165]

[0166]

[0167] Formula 201

[0168]

[0169] Formula 202

[0170]

[0171] In equation 201 and equation 202,

[0172] L 201 To L 204 can be independently selected from substituted or unsubstituted C 3 -C 10 Cycloalkylene, substituted or unsubstituted C 1 -C 10 Heterocycloalkylene, substituted or unsubstituted C 3 -C 10 Cycloalkenylene, substituted or unsubstituted C 1 -C 10 Heterocycloalkenylene, substituted or unsubstituted C 6 -C 60 Arylene, substituted or unsubstituted C 1 -C 60 heteroarylene, substituted or unsubstituted divalent non-aromatic condensed polycyclic group and substituted or unsubstituted divalent non-aromatic condensed heteropolycyclic group,

[0173] L 205 Can be selected from *-O-*', *-S-*', *-N(Q 201 )-*', substituted or unsubstituted C 1 -C 20 Alkylene, substituted or unsubstituted C 2 -C20 Alkenylene, substituted or unsubstituted C 3 -C 10 Cycloalkylene, substituted or unsubstituted C 1 -C 10 Heterocycloalkylene, substituted or unsubstituted C 3 -C 10 Cycloalkenylene, substituted or unsubstituted C 1 -C 10 Heterocycloalkenylene, substituted or unsubstituted C 6 -C 60 Arylene, substituted or unsubstituted C 1 -C 60 heteroarylene, substituted or unsubstituted divalent non-aromatic condensed polycyclic group and substituted or unsubstituted divalent non-aromatic condensed heteropolycyclic group,

[0174] xa1 to xa4 may each independently be an integer from 0 to 3,

[0175] xa5 can be an integer from 1 to 10, and

[0176] R 201 To R 204 and Q 201 can be independently selected from substituted or unsubstituted C 3 -C 10 Cycloalkyl, substituted or unsubstituted C 1 -C 10 Heterocycloalkyl, substituted or unsubstituted C 3 -C 10 Cycloalkenyl, substituted or unsubstituted C 1 -C 10 Heterocycloalkenyl, substituted or unsubstituted C 6 -C 60 Aryl, substituted or unsubstituted C 6 -C 60 Aryloxy, substituted or unsubstituted C 6 -C 60 Arylthio, substituted or unsubstituted C 1 -C 60 heteroaryl group, a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, and a substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group.

[0177] For example, in Equation 202, R 201 and R 202 can be optionally linked via a single bond, a dimethyl-methylene or a diphenyl-methylene, R 203 and R 204 Attachment may alternatively be via a single bond, a dimethyl-methylene or a diphenyl-methylene.

[0178] In one embodiment, in equation 201 and equation 202,

[0179] L 201 To L 205 Can be independently selected from:

[0180] Phenylene, cyclopentadienylene, indenylene, naphthylene, azulenylene, heptalenylene, indacenylene, acenaphthenylene, fluorenylene, spirobifluorenylene, benzofluorenylene, dibenzofluorenylene, phenanthrenylene, phenanthrenylene, anthracenylene, fluoranthenylene, benzo[9,10]phenanthrenylene, pyrenylene, pyrenylene phenylene, tetraphenylene, perylene, perylene, pentaphenylene, hexaphenylene, pentphenylene, rubidinylene, camphenylene, ovaphenylene, thienylene, furanylene, carbazolylene, indolylene, isoindolylene, benzofuranylene, benzothienylene, dibenzofuranylene, dibenzothienylene, benzocarbazolylene, dibenzocarbazolylene, dibenzosilylene, and pyridinylene; and

[0181] are substituted with deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C 1 -C 20 Alkyl, C 1 -C 20 Alkoxy, cyclopentyl, cyclohexyl, cycloheptyl, cyclopentenyl, cyclohexenyl, phenyl, biphenyl, terphenyl, substituted with C 1 -C 10 Alkyl phenyl, phenyl substituted with -F, pentalenyl, indenyl, naphthyl, azulenyl, heptalenyl, indacenyl, acenaphthenyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenaltenyl, phenanthrenyl, anthracenyl, fluoranthenyl, benzo[9,10]phenanthrenyl, pyrenyl, phenyl, tetraphenyl, peryl, peryl, pentaphenyl, hexaphenyl, pentacene, rubinyl, camphenyl, ovalenyl, thienyl, furanyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothienyl, dibenzofuranyl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilyl, pyridyl, -Si(Q 31 )(Q 32 )(Q 33 ) and -N(Q 31 )(Q 32 ) is at least one selected from phenylene, cyclopentadienylene, indenylene, naphthylene, azulenylene, heptalene, indacenylene, acenaphthenylene, fluorenylene, spirobifluorenylene, benzofluorenylene, dibenzofluorenylene, phenanthrenylene, phenanthrenylene, anthracenylene, fluoranthenylene, benzo[9,10]phenanthrenylene, pyrenylene, pyrenylene phenylene, tetraphenylene, perylene, perylene, pentaphenylene, hexaphenylene, pentphenylene, rubidinylene, camphenylene, ovaphenylene, thienylene, furanylene, carbazolylene, indolylene, isoindolylene, benzofuranylene, benzothienylene, dibenzofuranylene, dibenzothienylene, benzocarbazolylene, dibenzocarbazolylene, dibenzosilylene and pyridylene, and

[0182] Q 31 To Q 33 can be independently selected from C 1 -C 10 Alkyl, C 1 -C 10 Alkoxy, phenyl, biphenyl, terphenyl and naphthyl.

[0183] In one or more embodiments, xa1 to xa4 may each independently be 0, 1 or 2.

[0184] In one or more embodiments, xa5 can be 1, 2, 3 or 4.

[0185] In one or more embodiments, R 201 To R 204 and Q 201 Can be independently selected from:

[0186] Phenyl, biphenyl, terphenyl, pentalenyl, indenyl, naphthyl, azulenyl, heptalenyl, indacenyl, acenaphthenyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthenyl, phenanthrenyl, anthracenyl, fluoranthenyl, benzo[9,10]phenanthrenyl, pyrenyl, phenyl, tetraphenyl, peryl, peryl, pentaphenyl, hexaphenyl, pentacene, rubinyl, camphenyl, ovalenyl, thienyl, furanyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothienyl, dibenzofuranyl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilyl, and pyridyl; and

[0187] are substituted with deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C 1 -C 20 Alkyl, C 1 -C 20 Alkoxy, cyclopentyl, cyclohexyl, cycloheptyl, cyclopentenyl, cyclohexenyl, phenyl, biphenyl, terphenyl, substituted with C 1 -C 10Alkyl phenyl, phenyl substituted with -F, pentalenyl, indenyl, naphthyl, azulenyl, heptalenyl, indacenyl, acenaphthenyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenaltenyl, phenanthrenyl, anthracenyl, fluoranthenyl, benzo[9,10]phenanthrenyl, pyrenyl, phenyl, tetraphenyl, peryl, peryl, pentaphenyl, hexaphenyl, pentacene, rubinyl, camphenyl, ovalenyl, thienyl, furanyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothienyl, dibenzofuranyl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilyl, pyridyl, -Si(Q 31 )(Q 32 )(Q 33 ) and -N(Q 31 )(Q 32 ) is at least one selected from phenyl, biphenyl, terphenyl, pentalenyl, indenyl, naphthyl, azulenyl, heptalenyl, indacenyl, acenaphthenyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenaltenyl, phenanthrenyl, anthracenyl, fluoranthenyl, benzo[9,10]phenanthrenyl, pyrenyl, phenyl, tetraphenyl, peryl, peryl, pentaphenyl, hexaphenyl, pentacene, rubinyl, camphenyl, ovalenyl, thienyl, furanyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothienyl, dibenzofuranyl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilyl and pyridyl, and

[0188] Q 31 To Q 33 Same as described above.

[0189] In one or more embodiments, in Formula 201, from R 201 To R 203 At least one of the selected ones can be independently selected from:

[0190] fluorenyl, spirobifluorenyl, carbazolyl, dibenzofuranyl, and dibenzothiophenyl; and

[0191] are substituted with deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C 1 -C 20 Alkyl, C 1 -C 20 Alkoxy, cyclopentyl, cyclohexyl, cycloheptyl, cyclopentenyl, cyclohexenyl, phenyl, biphenyl, terphenyl, substituted with C 1 -C 10an alkyl group selected from the group consisting of a phenyl group, a phenyl group substituted with -F, a naphthyl group, a fluorenyl group, a spirobifluorenyl group, a carbazolyl group, a dibenzofuranyl group, and a dibenzothiophenyl group,

[0192] However, the embodiments of the present disclosure are not limited thereto.

[0193] In one or more embodiments, in Formula 202, i) R 201 and R 202 can be connected via a single bond, and / or ii) R 203 and R 204 Can connect via one-touch.

[0194] In one or more embodiments, in Formula 202, from R 201 To R 204 At least one of the selected ones may be selected from:

[0195] carbazolyl; and

[0196] Substitutions include deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C 1 -C 20 Alkyl, C 1 -C 20 Alkoxy, cyclopentyl, cyclohexyl, cycloheptyl, cyclopentenyl, cyclohexenyl, phenyl, biphenyl, terphenyl, substituted with C 1 -C 10 a carbazolyl group selected from at least one of a phenyl group of an alkyl group, a phenyl group substituted with -F, a naphthyl group, a fluorenyl group, a spirobifluorenyl group, a carbazolyl group, a dibenzofuranyl group, and a dibenzothiophenyl group,

[0197] However, the embodiments of the present disclosure are not limited thereto.

[0198] The compound represented by Formula 201 can be represented by Formula 201A:

[0199] Formula 201A

[0200]

[0201] For example, the compound represented by Formula 201 may be represented by Formula 201A(1), but embodiments of the present disclosure are not limited thereto:

[0202] Formula 201A(1)

[0203]

[0204] For example, the compound represented by Formula 201 may be represented by Formula 201A-1, but embodiments of the present disclosure are not limited thereto:

[0205] Formula 201A-1

[0206]

[0207] The compound represented by Formula 202 can be represented by Formula 202A:

[0208] Formula 202A

[0209]

[0210] For example, the compound represented by Formula 202 can be represented by Formula 202A-1:

[0211] Formula 202A-1

[0212]

[0213] In Formula 201A, Formula 201A(1), Formula 201A-1, Formula 202A, and Formula 202A-1,

[0214] L 201 To L 203 , xa1 to xa3, xa5 and R 202 To R 204 Same as described above,

[0215] R 211 and R 212 can be independently combined with R 203 The same definition,

[0216] R 213 To R 217 can be independently selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C 1 -C 20 Alkyl, C 1 -C 20 Alkoxy, cyclopentyl, cyclohexyl, cycloheptyl, cyclopentenyl, cyclohexenyl, phenyl, biphenyl, terphenyl, substituted with C 1 -C 10 Alkyl phenyl, phenyl substituted with -F, pentalenyl, indenyl, naphthyl, azulenyl, heptalenyl, indacenyl, acenaphthenyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenaltenyl, phenanthrenyl, anthracenyl, fluoranthenyl, benzo[9,10]phenanthrenyl, pyrenyl, phenyl, tetraphenyl, peryl, peryl, pentaphenyl, hexaphenyl, pentacene, rubinyl, camphenyl, ovalenyl, thienyl, furanyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothienyl, dibenzofuranyl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilyl and pyridyl.

[0217] The hole transport region may include at least one compound selected from Compound HT1 to Compound HT39, but the embodiments of the present disclosure are not limited thereto:

[0218]

[0219]

[0220]

[0221] The thickness of the hole transport region may be approximately To about For example, approximately To about When the hole transport region includes at least one selected from a hole injection layer and a hole transport layer, the thickness of the hole injection layer may be about To about In the range of, for example, about To about In the range of To about In the range of, for example, about To about When the thicknesses of the hole transport region, the hole injection layer, and the hole transport layer are within these ranges, suitable or satisfactory hole transport characteristics may be obtained without significantly increasing the driving voltage.

[0222] The emission auxiliary layer can improve light emitting efficiency by compensating the optical resonance distance according to the wavelength of light emitted by the emission layer, and the electron blocking layer can block the flow of electrons from the electron transport region. The emission auxiliary layer and the electron blocking layer can include materials as described above.

[0223] p-dopant

[0224] In addition to these materials, the hole transport region may also include a charge generating material for improving the conductive property. The charge generating material may be dispersed uniformly or non-uniformly in the hole transport region.

[0225] The charge generating material may be, for example, a p-dopant.

[0226] In one embodiment, the p-dopant may have a lowest unoccupied molecular orbital (LUMO) energy level of -3.5 eV or less.

[0227] The p-dopant may include at least one selected from quinone derivatives, metal oxides, and cyano-containing compounds, but embodiments of the present disclosure are not limited thereto.

[0228] In one embodiment, the p-dopant may include at least one selected from the following compounds:

[0229] Quinone derivatives, such as tetracyanoquinodimethane (TCNQ) and 2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane (F4-TCNQ);

[0230] Metal oxides, such as tungsten oxide or molybdenum oxide;

[0231] 1,4,5,8,9,12-Hexaazatriphenylene-hexanitrile (HAT-CN); and

[0232] The compound represented by formula 221:

[0233] However, the embodiments of the present disclosure are not limited thereto:

[0234]

[0235]

[0236] Formula 221

[0237]

[0238] In formula 221,

[0239] R 221 To R 223 can be independently selected from substituted or unsubstituted C 3 -C 10 Cycloalkyl, substituted or unsubstituted C 1 -C 10 Heterocycloalkyl, substituted or unsubstituted C 3 -C 10 Cycloalkenyl, substituted or unsubstituted C 1 -C 10 Heterocycloalkenyl, substituted or unsubstituted C 6 -C 60 Aryl, substituted or unsubstituted C 1 -C 60 Heteroaryl, substituted or unsubstituted monovalent non-aromatic condensed polycyclic group and substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group, wherein R 221 To R 223At least one selected from the group consisting of cyano, -F, -Cl, -Br, -I, C substituted with -F 1 -C 20 Alkyl, C substituted with -Cl 1 -C 20 Alkyl, C substituted with -Br 1 -C 20 Alkyl and C substituted with -I 1 -C 20 At least one substituent selected from the group consisting of:

[0240] Emission layer in the organic layer 150

[0241] When the organic light emitting device 10 is a full-color organic light emitting device, the emission layer may be patterned into a red emission layer, a green emission layer, and a blue emission layer. In one embodiment, the emission layer may have a stacked structure of two or more layers selected from the red emission layer, the green emission layer, and the blue emission layer, or 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 with each other in a single layer to emit white light.

[0242] The emission layer may include a host and a dopant. The dopant may include at least one selected from a phosphorescent dopant and a fluorescent dopant.

[0243] In the emission layer, the amount of the dopant may be in the range of about 0.01 parts by weight to about 15 parts by weight based on 100 parts by weight of the host, but embodiments of the present disclosure are not limited thereto.

[0244] The thickness of the emitter layer can be approximately To about In the range of, for example, about To about When the thickness of the emission layer is within this range, excellent emission characteristics can be obtained without significantly increasing the driving voltage.

[0245] Subject in the emission layer

[0246] The host may include a first compound and a second compound.

[0247] The host may also include a compound represented by Formula 301:

[0248] Formula 301

[0249] [Ar 301 ] xb11 -[(L 301 ) xb1 -R 301 ] xb21 .

[0250] In formula 301,

[0251] Ar 301 It can be substituted or unsubstituted C 5 -C 60 Carbocyclic or substituted or unsubstituted C 1 -C 60 Heterocyclic group,

[0252] xb11 can be 1, 2 or 3,

[0253] L 301 Can be selected from substituted or unsubstituted C 3 -C 10 Cycloalkylene, substituted or unsubstituted C 1 -C 10 Heterocycloalkylene, substituted or unsubstituted C 3 -C 10 Cycloalkenylene, substituted or unsubstituted C 1 -C 10 Heterocycloalkenylene, substituted or unsubstituted C 6 -C 60 Arylene, substituted or unsubstituted C 1 -C 60 heteroarylene, substituted or unsubstituted divalent non-aromatic condensed polycyclic group and substituted or unsubstituted divalent non-aromatic condensed heteropolycyclic group,

[0254] xb1 can be an integer from 0 to 5.

[0255] R 301 It can be selected from deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, substituted or unsubstituted C 1 -C 60 Alkyl, substituted or unsubstituted C 2 -C 60 Alkenyl, substituted or unsubstituted C 2 -C 60 Alkynyl, substituted or unsubstituted C 1 -C 60 Alkoxy, substituted or unsubstituted C 3 -C 10 Cycloalkyl, substituted or unsubstituted C 1 -C 10 Heterocycloalkyl, substituted or unsubstituted C 3 -C 10 Cycloalkenyl, substituted or unsubstituted C 1 -C 10 Heterocycloalkenyl, substituted or unsubstituted C 6 -C 60 Aryl, substituted or unsubstituted C6 -C 60 Aryloxy, substituted or unsubstituted C 6 -C 60 Arylthio, substituted or unsubstituted C 1 -C 60 heteroaryl, substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group, -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 ),

[0256] xb21 can be an integer from 1 to 5, and

[0257] Q 301 To Q 303 can be independently selected from C 1 -C 10 Alkyl, C 1 -C 10 an alkoxy group, a phenyl group, a biphenyl group, a terphenyl group, and a naphthyl group, but the embodiments of the present disclosure are not limited thereto.

[0258] In one embodiment, in Formula 301, Ar 301 Can be selected from:

[0259] naphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthrenyl, phenanthrenyl, anthracenyl, fluoranthenyl, benzo[9,10]phenanthrenyl, pyrenyl, phenyl, naphthacene, peryl, phenanthrenyl, indenoanthryl, dibenzofuranyl, and dibenzothiophenyl; and

[0260] are substituted with deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C 1 -C 20 Alkyl, C 1 -C 20 Alkoxy, phenyl, biphenyl, terphenyl, naphthyl, -Si(Q 31 )(Q 32 )(Q 33 )、-N(Q 31 )(Q 32 )、-B(Q31 )(Q 32 )、-C(=O)(Q 31 )、-S(=O) 2 (Q 31 ) and -P(=O)(Q 31 )(Q 32 ) is at least one of naphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenaltenyl, phenanthrenyl, anthracenyl, fluoranthenyl, benzo[9,10]phenanthrenyl, pyrenyl, phenyl, naphthacene, peryl, peryl, pentaphenyl, indenoanthryl, dibenzofuranyl and dibenzothiophenyl, and

[0261] Q 31 To Q 33 can be independently selected from C 1 -C 10 Alkyl, C 1 -C 10 an alkoxy group, a phenyl group, a biphenyl group, a terphenyl group, and a naphthyl group, but the embodiments of the present disclosure are not limited thereto.

[0262] In Formula 301, when xb11 is two or more, two or more Ar 301 Can connect via one-touch.

[0263] In one or more embodiments, the compound represented by Formula 301 may be represented by Formula 301-1 or Formula 301-2:

[0264] Formula 301-1

[0265]

[0266] Formula 301-2

[0267]

[0268] In Formula 301-1 and Formula 301-2,

[0269] A 301 To A 304 can be independently selected from phenyl, naphthyl, phenanthrenyl, fluoranthenyl, benzo[9,10]phenanthrenyl, pyrenyl, yl, pyridyl, pyrimidyl, indenyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, indolyl, carbazolyl, benzocarbazolyl, dibenzocarbazolyl, furanyl, benzofuranyl, dibenzofuranyl, naphthofuranyl, benzonaphthofuranyl, dinaphthofuranyl, thienyl, benzothienyl, dibenzothienyl, naphthothienyl, benzonaphthothienyl and dinaphthothienyl,

[0270] X 301Can be O, S or N-[(L 304 ) xb4 -R 304 ],

[0271] R 311 To R 314 can be independently selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C 1 -C 20 Alkyl, C 1 -C 20 Alkoxy, phenyl, biphenyl, terphenyl, naphthyl, -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 ),

[0272] xb22 and xb23 can each independently be 0, 1 or 2,

[0273] L 301 、xb1、R 301 and Q 31 To Q 33 Same as described above,

[0274] L 302 To L 304 can be independently combined with L 301 The same definition,

[0275] xb2 to xb4 may each independently be the same as defined in conjunction with xb1, and

[0276] R 302 To R 304 can be independently combined with R 301 The definition is the same.

[0277] For example, in Formula 301, Formula 301-1, and Formula 301-2, L 301 To L 304 Can be independently selected from:

[0278] Phenylene, naphthylene, fluorenylene, spirobifluorenylene, benzofluorenylene, dibenzofluorenylene, phenanthrenylene, anthracenylene, fluoranthenylene, benzo[9,10]phenanthrenylene, pyrenylene, pyrenylene yl, perylene, pentaphenylene, hexaphenylene, pentphenylene, thienylene, furanylene, carbazolylene, indolylene, isoindolylene, benzofuranylene, benzothiophenylene, dibenzofuranylene, dibenzothiophenylene, benzocarbazolylene, dibenzocarbazolylene, dibenzothioylene, pyridylene, imidazolylene, pyrazolylene, thiazolylene, isothiazolylene, oxazolylene, isoxazolylene, thiadiazolylene, oxadiazolylene, pyrazinylene, pyrimidinylene, pyridazinylene, triazinylene, quinolylene, isoquinolylene, benzoquinolylene, phthalazinylene, naphthyridinylene, quinoxalylene, quinazolinylene, cinnolinylene, phenanthridinylene, acridinylene, phenanthrolinylene, phenazinylene, benzimidazolylene, isobenzothiazolylene, benzoxazolylene, isobenzoxazolylene, triazolylene, tetrazolylene, imidazopyridylene, imidazopyrimidylene, and azacarbazolylene; and

[0279] are substituted with deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C 1 -C 20 Alkyl, C 1 -C 20 Alkoxy, phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthrenyl, anthracenyl, fluoranthenyl, benzo[9,10]phenanthrenyl, pyrenyl, yl, peryl, pentaphenyl, hexaphenyl, pentacene, thienyl, furanyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothiophenyl, dibenzofuranyl, dibenzothiophenyl, benzocarbazolyl, dibenzocarbazolyl, dibenzothiophenyl, pyridyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, thiadiazolyl, oxadiazolyl, pyridyl azine, pyrimidinyl, pyridazinyl, triazine, quinolyl, isoquinolyl, benzoquinolyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, isobenzothiazolyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, imidazopyridinyl, imidazopyrimidinyl, azacarbazolyl, -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) is at least one of phenylene, naphthylene, fluorenylene, spirobifluorenylene, benzofluorenylene, dibenzofluorenylene, phenanthrenylene, anthracenylene, fluoranthenylene, benzo[9,10]phenanthrenylene, pyrenylene, pyrenylene, yl, perylene, pentaphenylene, hexaphenylene, pentphenylene, thienylene, furanylene, carbazolylene, indolylene, isoindolylene, benzofuranylene, benzothiophenylene, dibenzofuranylene, dibenzothiophenylene, benzocarbazolylene, dibenzocarbazolylene, dibenzothioylene, pyridylene, imidazolylene, pyrazolylene, thiazolylene, isothiazolylene, oxazolylene, isoxazolylene, thiadiazolylene, oxadiazolylene, pyrazinylene, pyrimidinylene, pyridazinylene, triazinylene, quinolylene, isoquinolylene, benzoquinolylene, phthalazinylene, naphthyridinylene, quinoxalylene, quinazolinylene, cinnolinylene, phenanthridinylene, acridinylene, phenanthrolinylene, phenazinylene, benzimidazolylene, isobenzothiazolylene, benzoxazolylene, isobenzoxazolylene, triazolylene, tetrazolylene, imidazopyridylene, imidazopyrimidylene and azacarbazolylene, and

[0280] Q 31 To Q 33 Same as described above.

[0281] In one embodiment, in Formula 301, Formula 301-1 and Formula 301-2, R 301 To R 304 Can be independently selected from:

[0282] Phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthrenyl, anthracenyl, fluoranthenyl, benzo[9,10]phenanthrenyl, pyrenyl, yl, peryl, pentaphenyl, hexaphenyl, pentacene, thienyl, furyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothiophenyl, dibenzofuranyl, dibenzothiophenyl, benzocarbazolyl, dibenzocarbazolyl, dibenzothiophenyl, pyridyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, thiadiazolyl, oxadiazolyl, pyrazinyl, pyrimidinyl, pyridazinyl, triazinyl, quinolyl, isoquinolyl, benzoquinolyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, isobenzothiazolyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, imidazopyridinyl, imidazopyrimidinyl, and azacarbazolyl; and

[0283] are substituted with deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C 1 -C 20 Alkyl, C1 -C 20 Alkoxy, phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthrenyl, anthracenyl, fluoranthenyl, benzo[9,10]phenanthrenyl, pyrenyl, yl, peryl, pentaphenyl, hexaphenyl, pentacene, thienyl, furanyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothiophenyl, dibenzofuranyl, dibenzothiophenyl, benzocarbazolyl, dibenzocarbazolyl, dibenzothiophenyl, pyridyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, thiadiazolyl, oxadiazolyl, pyridyl azine, pyrimidinyl, pyridazinyl, triazine, quinolyl, isoquinolyl, benzoquinolyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, isobenzothiazolyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, imidazopyridinyl, imidazopyrimidinyl, azacarbazolyl, -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 ) is at least one selected from the group consisting of phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthrenyl, anthracenyl, fluoranthenyl, benzo[9,10]phenanthrenyl, pyrenyl, yl, peryl, pentaphenyl, hexaphenyl, pentacene, thienyl, furyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothiophenyl, dibenzofuranyl, dibenzothiophenyl, benzocarbazolyl, dibenzocarbazolyl, dibenzothiophenyl, pyridyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, thiadiazolyl, oxadiazolyl, pyrazinyl, pyrimidinyl, pyridazinyl, triazinyl, quinolyl, isoquinolyl, benzoquinolyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, isobenzothiazolyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, imidazopyridinyl, imidazopyrimidinyl and azacarbazolyl, and

[0284] Q 31 To Q 33 Same as described above.

[0285] In one embodiment, the host may include an alkaline earth metal complex. For example, the host may be selected from a Be complex (eg, compound H55), a Mg complex, and a Zn complex.

[0286] The host may further include at least one selected from 9,10-di(2-naphthyl)anthracene (ADN), 2-methyl-9,10-bis(naphthalene-2-yl)anthracene (MADN), 9,10-di-(2-naphthyl)-2-tert-butyl-anthracene (TBADN), 4,4'-bis(N-carbazolyl)-1,1'-biphenyl (CBP), 1,3-di-9-carbazolylbenzene (mCP), 1,3,5-tri(carbazolyl-9-yl)benzene (TCP), and compounds H1 to H55, but embodiments of the present disclosure are not limited thereto:

[0287]

[0288]

[0289]

[0290] The phosphorescent dopant included in the emission layer in the organic layer 150

[0291] The phosphorescent dopant may include an organometallic complex represented by Formula 401:

[0292] Formula 401

[0293] M(L 401 ) xc1 (L 402 ) xc2

[0294] Formula 402

[0295]

[0296] In equations 401 and 402,

[0297] M may be selected from iridium (Ir), platinum (Pt), palladium (Pd), osmium (Os), titanium (Ti), zirconium (Zr), hafnium (Hf), europium (Eu), terbium (Tb), rhodium (Rh) and thulium (Tm),

[0298] L 401 can be selected from the ligand represented by formula 402, xc1 can be 1, 2 or 3, wherein when xc1 is two or more, two or more L 401 can be the same or different from each other,

[0299] L 402 It can be an organic ligand, and xc2 can be an integer from 0 to 4, wherein when xc2 is two or more, two or more L402 can be the same or different from each other,

[0300] X 401 To X 404 may each independently be nitrogen or carbon,

[0301] X 401 and X 403 Can be connected via single or double bonds, X 402 and X 404 Can be connected via single or double bonds,

[0302] A 401 and A 402 can be independently C 5 -C 60 Carbocyclic or C 1 -C 60 Heterocyclic group,

[0303] X 405 It can be 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=*', where Q 411 and Q 412 can be independently hydrogen, deuterium, C 1 -C 20 Alkyl, C 1 -C 20 alkoxy, phenyl, biphenyl, terphenyl or naphthyl,

[0304] X 406 Can be a single bond, O or S,

[0305] R 401 and R 402 can be independently selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, substituted or unsubstituted C 1 -C 20 Alkyl, substituted or unsubstituted C 1 -C 20 Alkoxy, substituted or unsubstituted C 3 -C 10 Cycloalkyl, substituted or unsubstituted C 1 -C 10 Heterocycloalkyl, substituted or unsubstituted C 3 -C 10Cycloalkenyl, substituted or unsubstituted C 1 -C 10 Heterocycloalkenyl, substituted or unsubstituted C 6 -C 60 Aryl, substituted or unsubstituted C 6 -C 60 Aryloxy, substituted or unsubstituted C 6 -C 60 Arylthio, substituted or unsubstituted C 1 -C 60 heteroaryl, substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group, -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 ), where Q 401 To Q 403 can be independently selected from C 1 -C 10 Alkyl, C 1 -C 10 Alkoxy, C 6 -C 20 Aryl and C 1 -C 20 Heteroaryl,

[0306] xc11 and xc12 may each independently be an integer from 0 to 10, and

[0307] The * and *' in formula 402 both represent the binding site with M in formula 401.

[0308] In one embodiment, in equation 402, A 401 and A 402 They can all be independently selected from phenyl, naphthyl, fluorenyl, spirobifluorenyl, indenyl, pyrrolyl, thienyl, furanyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, pyridyl, pyrazinyl, pyrimidinyl, pyridazinyl, quinolyl, isoquinolyl, benzoquinolyl, quinoxalinyl, quinazolinyl, carbazolyl, benzimidazolyl, benzofuranyl, benzothiophenyl, isobenzothiophenyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, oxadiazolyl, triazinyl, dibenzofuranyl and dibenzothiophenyl.

[0309] In one or more embodiments, in Formula 402, i) X 401 Can be nitrogen, X 402 It can be carbon, or ii) X 401 and X 402 Both may be nitrogen.

[0310] In one or more embodiments, in Formula 402, R 401 and R 402 Can be independently selected from:

[0311] Hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C 1 -C 20 Alkyl and C 1 -C 20 Alkoxy;

[0312] The C groups are substituted with at least one selected from deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, phenyl, naphthyl, cyclopentyl, cyclohexyl, adamantyl, norbornyl and norbornenyl. 1 -C 20 Alkyl and C 1 -C 20 Alkoxy;

[0313] Cyclopentyl, cyclohexyl, adamantyl, norbornyl, norbornenyl, phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, pyridyl, pyrazinyl, pyrimidinyl, pyridazinyl, triazinyl, quinolyl, isoquinolyl, quinoxalinyl, quinazolinyl, carbazolyl, dibenzofuranyl and dibenzothiophenyl;

[0314] are substituted with deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C 1 -C 20 Alkyl, C 1 -C 20 at least one selected from the group consisting of an alkoxy group, a cyclopentyl group, a cyclohexyl group, an adamantyl group, a norbornyl group, a norbornenyl group, a phenyl group, a biphenyl group, a terphenyl group, a naphthyl group, a fluorenyl group, a pyridyl group, a pyrazinyl group, a pyrimidinyl group, a pyridazinyl group, a triazinyl group, a quinolyl group, an isoquinolyl group, a quinoxalinyl group, a quinazolinyl group, a carbazolyl group, a dibenzofuranyl group, and a dibenzothiophenyl group; and

[0315] -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

[0316] Q 401 To Q 403 can be independently selected from C 1 -C 10 Alkyl, C 1 -C 10 alkoxy, phenyl, biphenyl, and naphthyl, but the embodiments of the present disclosure are not limited thereto.

[0317] In one or more embodiments, in Formula 401, when xc1 is two or greater, two or more L 401 Two A's 401 It can be optionally connected via X as a linker 407 Connect, or two or more L 401 Two A's 402 It can be optionally connected via X as a linker 408 Connection (see Compound PD1 to Compound PD4 and Compound PD7). 407 and X 408 can be independently 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 can be independently hydrogen, deuterium, C 1 -C 20 Alkyl, C 1 -C 20 alkoxy, phenyl, biphenyl, terphenyl or naphthyl), but the embodiments of the present disclosure are not limited thereto.

[0318] In formula 401, L 402 It can be a monovalent organic ligand, a divalent organic ligand or a trivalent organic ligand. 402The moiety may be selected from halogen, diketone (eg, acetylacetone), carboxylic acid (eg, picolinic acid), -C(=O)-, isonitrile, -CN, and phosphorus (eg, phosphine or phosphite), but the embodiments of the present disclosure are not limited thereto.

[0319] In one or more embodiments, the phosphorescent dopant may be selected from, for example, compound PD1 to compound PD25, but the embodiments of the present disclosure are not limited thereto:

[0320]

[0321]

[0322] Fluorescent dopants in the emitting layer

[0323] The fluorescent dopant may include an arylamine compound or a styrylamine compound.

[0324] The fluorescent dopant may include a compound represented by Formula 501:

[0325] Formula 501

[0326]

[0327] In formula 501,

[0328] Ar 501 It can be substituted or unsubstituted C 5 -C 60 Carbocyclic or substituted or unsubstituted C 1 -C 60 Heterocyclic group,

[0329] L 501 To L 503 can be independently selected from substituted or unsubstituted C 3 -C 10 Cycloalkylene, substituted or unsubstituted C 1 -C 10 Heterocycloalkylene, substituted or unsubstituted C 3 -C 10 Cycloalkenylene, substituted or unsubstituted C 1 -C 10 Heterocycloalkenylene, substituted or unsubstituted C 6 -C 60 Arylene, substituted or unsubstituted C 1 -C 60 heteroarylene, substituted or unsubstituted divalent non-aromatic condensed polycyclic group and substituted or unsubstituted divalent non-aromatic condensed heteropolycyclic group,

[0330] xd1 to xd3 may each independently be an integer from 0 to 3,

[0331] R 501 and R 502 can be independently selected from substituted or unsubstituted C 3 -C 10 Cycloalkyl, substituted or unsubstituted C 1 -C 10 Heterocycloalkyl, substituted or unsubstituted C 3 -C 10 Cycloalkenyl, substituted or unsubstituted C 1 -C 10 Heterocycloalkenyl, substituted or unsubstituted C 6 -C 60 Aryl, substituted or unsubstituted C 6 -C 60 Aryloxy, substituted or unsubstituted C 6 -C 60 Arylthio, substituted or unsubstituted C 1 -C 60 heteroaryl, substituted or unsubstituted monovalent non-aromatic condensed polycyclic group and substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group, and

[0332] xd4 can be an integer from 1 to 6.

[0333] In one embodiment, in Formula 501, Ar 501 Can be selected from:

[0334] naphthyl, heptathenyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenaltenyl, phenanthrenyl, anthracenyl, fluoranthenyl, benzo[9,10]phenanthrenyl, pyrenyl, phenyl, naphthacene, phenanthrenyl, perylenyl, pentaphenanthrenyl, indenoanthryl, and indenophenanthrenyl; and

[0335] are substituted with deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C 1 -C 20 Alkyl, C 1 -C 20 at least one selected from the group consisting of alkoxy, phenyl, biphenyl, terphenyl and naphthyl, naphthyl, heptalenyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenalenyl, phenanthrenyl, anthracenyl, fluoranthenyl, benzo[9,10]phenanthrenyl, pyrenyl, The following examples include 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33,

[0336] In one or more embodiments, in Formula 501, L 501 To L 503 Can be independently selected from:

[0337] Phenylene, naphthylene, fluorenylene, spirobifluorenylene, benzofluorenylene, dibenzofluorenylene, phenanthrenylene, anthracenylene, fluoranthenylene, benzo[9,10]phenanthrenylene, pyrenylene, pyrenylene phenylene, ...

[0338] are substituted with deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C 1 -C 20 Alkyl, C 1 -C 20 Alkoxy, phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthrenyl, anthracenyl, fluoranthenyl, benzo[9,10]phenanthrenyl, pyrenyl, a phenylene group, a naphthylene group, a fluorenyl group, a spirobifluorenyl group, a benzofluorenyl group, a dibenzofluorenyl group, a phenanthrenyl group, an anthracene group, an anthracene group, an fluoranthenyl group, a benzo[9,10]phenanthrenyl group, a pyrenyl group, a fluorenyl group, a phenanthrenyl group, a phenanthrenyl group, a fluoranthrenyl group, a benzo[9,10]phenanthrenyl group, a py ... The compounds include phenylene, benzofuranylene, benzothiophenylene, dibenzofuranylene, dibenzothiophenylene, benzocarbazolylene, dibenzocarbazolylene, dibenzothiophenylene, and pyridylene.

[0339] In one or more embodiments, in Formula 501, R 501 and R 502 Can be independently selected from:

[0340] Phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthrenyl, anthracenyl, fluoranthenyl, benzo[9,10]phenanthrenyl, pyrenyl, phenyl, benzothiophene, dibenzofuranyl, dibenzothiophene, benzocarbazolyl, dibenzocarbazolyl, dibenzosilyl, and pyridyl; and

[0341] are substituted with deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C 1 -C 20 Alkyl, C 1 -C 20 Alkoxy, phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthrenyl, anthracenyl, fluoranthenyl, benzo[9,10]phenanthrenyl, pyrenyl, phenyl, peryl, pentaphenyl, hexaphenyl, pentacene, thienyl, furanyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothienyl, dibenzofuranyl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl, dibenzothiophenyl, pyridyl and -Si(Q 31 )(Q 32 )(Q 33 ) is at least one selected from the group consisting of phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthrenyl, anthracenyl, fluoranthenyl, benzo[9,10]phenanthrenyl, pyrenyl, phenyl, benzothiophene, dibenzofuranyl, dibenzothiophene, benzocarbazolyl, dibenzocarbazolyl, dibenzothiophene, and pyridyl, and

[0342] Q 31 To Q 33 can be independently selected from C 1 -C 10 Alkyl, C 1 -C 10 Alkoxy, phenyl, biphenyl, terphenyl and naphthyl.

[0343] In one or more embodiments, xd4 in equation 501 may be 2, but the embodiments of the present disclosure are not limited thereto.

[0344] For example, the fluorescent dopant may be selected from Compound FD1 to Compound FD22:

[0345]

[0346]

[0347]

[0348] In one or more embodiments, the fluorescent dopant may be selected from the following compounds, but the embodiments of the present disclosure are not limited thereto.

[0349]

[0350] Electron transport region in the organic layer 150

[0351] The electron transport region may have: i) a single layer structure including a single layer including a single material; ii) a single layer structure including a single layer including a plurality of different materials; or iii) a multilayer structure having a plurality of layers including a plurality of different materials.

[0352] The electron transport region may have at least one layer selected from a buffer layer, a hole blocking layer, an electron control layer, an electron transport layer, and an electron injection layer, but the embodiments of the present disclosure are not limited thereto.

[0353] For example, the electron transport region may have an electron transport layer / electron injection layer structure, a hole blocking layer / electron transport layer / electron injection layer structure, an electron control layer / electron transport layer / electron injection layer structure, or a buffer layer / electron transport layer / electron injection layer structure, wherein for each structure, the constituent layers are sequentially stacked from the emission layer in the order stated. However, embodiments of the structure of the electron transport region are not limited thereto.

[0354] The electron transport region (e.g., a buffer layer, a hole blocking layer, an electron control layer, or an electron transport layer in the electron transport region) may include a metal-free compound containing at least one π electron-depleted nitrogen-containing ring.

[0355] As used herein, the term "π-electron-poor nitrogen-containing ring" refers to a C-type ring having at least one *-N=*' moiety as a ring-forming part. 1 -C 60 Heterocyclic group.

[0356] For example, the "π-electron-poor nitrogen-containing ring" may be: i) a 5- to 7-membered heteromonocyclic group having at least one *-N=*' portion; ii) a heteropolycyclic group in which two or more 5- to 7-membered heteromonocyclic groups each having at least one *-N=*' portion are condensed with each other; or iii) a heteropolycyclic group in which at least one of the 5- to 7-membered heteromonocyclic groups each having at least one *-N=*' portion is condensed with at least one C 5 -C 60 A carbocyclic condensed heteropolycyclic group.

[0357] Examples of π-electron-poor nitrogen-containing rings include 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, but embodiments of the present disclosure are not limited thereto.

[0358] For example, the electron transport region may include a compound represented by Formula 601:

[0359] Formula 601

[0360] [Ar 601 ] xe11 -[(L 601 ) xe1 -R 601 ] xe21 .

[0361] In formula 601,

[0362] Ar 601 It can be substituted or unsubstituted C 5 -C 60 Carbocyclic or substituted or unsubstituted C 1 -C 60 Heterocyclic group,

[0363] xe11 can be 1, 2 or 3,

[0364] L 601 Can be selected from substituted or unsubstituted C 3 -C 10 Cycloalkylene, substituted or unsubstituted C 1 -C 10 Heterocycloalkylene, substituted or unsubstituted C 3 -C 10 Cycloalkenylene, substituted or unsubstituted C 1 -C 10 Heterocycloalkenylene, substituted or unsubstituted C 6 -C 60 Arylene, substituted or unsubstituted C 1 -C 60 heteroarylene, substituted or unsubstituted divalent non-aromatic condensed polycyclic group and substituted or unsubstituted divalent non-aromatic condensed heteropolycyclic group,

[0365] xe1 can be an integer from 0 to 5,

[0366] R 601 Can be selected from substituted or unsubstituted C 3 -C10 Cycloalkyl, substituted or unsubstituted C 1 -C 10 Heterocycloalkyl, substituted or unsubstituted C 3 -C 10 Cycloalkenyl, substituted or unsubstituted C 1 -C 10 Heterocycloalkenyl, substituted or unsubstituted C 6 -C 60 Aryl, substituted or unsubstituted C 6 -C 60 Aryloxy, substituted or unsubstituted C 6 -C 60 Arylthio, substituted or unsubstituted C 1 -C 60 heteroaryl, substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group, -Si(Q 601 )(Q 602 )(Q 603 )、-C(=O)(Q 601 )、-S(=O) 2 (Q 601 ) and -P(=O)(Q 601 )(Q 602 ),

[0367] Q 601 To Q 603 can be independently C 1 -C 10 Alkyl, C 1 -C 10 alkoxy, phenyl, biphenyl, terphenyl or naphthyl, and

[0368] xe21 can be an integer from 1 to 5.

[0369] In one embodiment, xe11 number of Ar 601 At least one of the may include a π-electron-poor nitrogen-containing ring.

[0370] In one embodiment, Ar in Formula 601 601 Can be selected from:

[0371] Phenyl, naphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthrenyl, phenanthrenyl, anthracenyl, fluoranthenyl, benzo[9,10]phenanthrenyl, pyrenyl, phenyl, phenanthrenyl, phenanthrenyl, phenanthrenyl, phenanthryl, phenanthroline, phenazinyl, phenanthryl ...

[0372] are substituted with deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C 1 -C 20 Alkyl, C 1 -C 20 Alkoxy, phenyl, biphenyl, terphenyl, naphthyl, -Si(Q 31 )(Q 32 )(Q 33 )、-S(=O) 2 (Q 31 ) and -P(=O)(Q 31 )(Q 32 ) is at least one selected from phenyl, naphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenaltenyl, phenanthrenyl, anthracenyl, fluoranthenyl, benzo[9,10]phenanthrenyl, pyrenyl, yl, naphthyl, phenanthrenyl, peryl, pentaphenanthrenyl, indenoanthryl, dibenzofuranyl, dibenzothiophenyl, carbazolyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, pyridinyl, pyrazinyl, pyrimidinyl, pyridazinyl, indazolyl, purinyl, quinolyl, isoquinolyl, benzoquinolyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, isobenzothiazolyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, oxadiazolyl, triazinyl, thiadiazolyl, imidazopyridinyl, imidazopyrimidinyl, and azacarbazolyl, and

[0373] Q 31 To Q 33 can be independently selected from C 1 -C 10 Alkyl, C 1 -C 10 Alkoxy, phenyl, biphenyl, terphenyl and naphthyl.

[0374] In Formula 601, when xe11 is two or more, two or more Ar 601 Can connect via one-touch.

[0375] In one or more embodiments, Ar in Formula 601 601 It may be anthracene.

[0376] In one or more embodiments, the compound represented by Formula 601 can be represented by Formula 601-1:

[0377] Formula 601-1

[0378]

[0379] In formula 601-1,

[0380] X 614 Can be N or C (R 614 ), X 615 Can be N or C (R 615 ), X 616 Can be N or C (R 616 ), where, from X 614 To X 616 At least one of the selected ones may be N,

[0381] L 611 To L 613 can be independently combined with L 601 The same definition,

[0382] xe611 to xe613 can all independently be the same as defined in conjunction with xe1,

[0383] R 611 To R 613 can be independently combined with R 601 are defined identically, and

[0384] R 614 To R 616 can be independently selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C 1 -C 20 Alkyl, C 1 -C 20 Alkoxy, phenyl, biphenyl, terphenyl and naphthyl.

[0385] In one embodiment, in equation 601 and equation 601-1, L 601 and L 611 To L 613 Can be independently selected from:

[0386] Phenylene, naphthylene, fluorenylene, spirobifluorenylene, benzofluorenylene, dibenzofluorenylene, phenanthrenylene, anthracenylene, fluoranthenylene, benzo[9,10]phenanthrenylene, pyrenylene, pyrenylene yl, perylene, pentaphenylene, hexaphenylene, pentphenylene, thienylene, furanylene, carbazolylene, indolylene, isoindolylene, benzofuranylene, benzothiophenylene, dibenzofuranylene, dibenzothiophenylene, benzocarbazolylene, dibenzocarbazolylene, dibenzothioylene, pyridylene, imidazolylene, pyrazolylene, thiazolylene, isothiazolylene, oxazolylene, isoxazolylene, thiadiazolylene, oxadiazolylene, pyrazinylene, pyrimidinylene, pyridazinylene, triazinylene, quinolylene, isoquinolylene, benzoquinolylene, phthalazinylene, naphthyridinylene, quinoxalylene, quinazolinylene, cinnolinylene, phenanthridinylene, acridinylene, phenanthrolinylene, phenazinylene, benzimidazolylene, isobenzothiazolylene, benzoxazolylene, isobenzoxazolylene, triazolylene, tetrazolylene, imidazopyridylene, imidazopyrimidylene, and azacarbazolylene; and

[0387] are substituted with deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C 1 -C 20 Alkyl, C 1 -C 20 Alkoxy, phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthrenyl, anthracenyl, fluoranthenyl, benzo[9,10]phenanthrenyl, pyrenyl, yl, peryl, pentaphenyl, hexaphenyl, pentacene, thienyl, furyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothiophenyl, dibenzofuranyl, dibenzothiophenyl, benzocarbazolyl, dibenzocarbazolyl, dibenzothiophenyl, pyridyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, thiadiazolyl, oxadiazolyl, pyrazinyl, pyrimidinyl, pyridazinyl, triazinyl, quinolyl, isoquinolyl, benzoquinolyl, phthalazine at least one selected from the group consisting of phenylene, naphthylene, quinoxalinyl, quinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, isobenzothiazolyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, imidazopyridinyl, imidazopyrimidinyl and azacarbazolyl, naphthylene, fluorenylene, spirobifluorenylene, benzofluorenylene, dibenzofluorenylene, phenanthrenylene, anthrylenylene, fluoranthenylene, benzo[9,10]phenanthrenylene, pyrenylene, pyrenylene yl, perylene, pentaphenylene, hexaphenylene, pentphenylene, thienylene, furanylene, carbazolylene, indolylene, isoindolylene, benzofuranylene, benzothiophenylene, dibenzofuranylene, dibenzothiophenylene, benzocarbazolylene, dibenzocarbazolylene, dibenzothioylene, pyridylene, imidazolylene, pyrazolylene, thiazolylene, isothiazolylene, oxazolylene, isoxazolylene, thiadiazolylene, oxadiazolylene , pyrazinylene, pyrimidinylene, pyridazinylene, triazinylene, quinolylene, isoquinolylene, benzoquinolylene, phthalazinylene, naphthyridinylene, quinoxalylene, quinazolinylene, cinnolinylene, phenanthridinylene, acridinylene, phenanthrolinylene, phenazinylene, benzimidazolylene, isobenzothiazolylene, benzoxazolylene, isobenzoxazolylene, triazolylene, tetrazolylene, imidazopyridylene, imidazopyrimidylene and azacarbazolylene,

[0388] However, the embodiments of the present disclosure are not limited thereto.

[0389] In one or more embodiments, in Formula 601 and Formula 601-1, xe1 and xe611 to xe613 may each independently be 0, 1, or 2.

[0390] In one or more embodiments, in Formula 601 and Formula 601-1, R 601 and R 611 To R 613 Can be independently selected from:

[0391] Phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthrenyl, anthracenyl, fluoranthenyl, benzo[9,10]phenanthrenyl, pyrenyl, yl, peryl, pentaphenyl, hexaphenyl, pentacene, thienyl, furyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothiophenyl, dibenzofuranyl, dibenzothiophenyl, benzocarbazolyl, dibenzocarbazolyl, dibenzothiophenyl, pyridyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, thiadiazolyl, oxadiazolyl , pyrazinyl, pyrimidinyl, pyridazinyl, triazinyl, quinolyl, isoquinolyl, benzoquinolyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, isobenzothiazolyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, imidazopyridinyl, imidazopyrimidinyl, and azacarbazolyl;

[0392] are substituted with deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C 1 -C 20 Alkyl, C 1 -C 20Alkoxy, phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthrenyl, anthracenyl, fluoranthenyl, benzo[9,10]phenanthrenyl, pyrenyl, yl, peryl, pentaphenyl, hexaphenyl, pentacene, thienyl, furyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothiophenyl, dibenzofuranyl, dibenzothiophenyl, benzocarbazolyl, dibenzocarbazolyl, dibenzothiophenyl, pyridyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, thiadiazolyl, oxadiazolyl, pyrazinyl, pyrimidinyl, pyridazinyl, triazinyl, quinolyl, isoquinolyl, benzoquinolyl, phthalide a phenyl group, a biphenyl group, a terphenyl group, a naphthyl group, a fluorenyl group, a spirobifluorenyl group, a benzofluorenyl group, a dibenzofluorenyl group, a phenanthrenyl group, an anthracenyl group, a fluoranthenyl group, a benzo[9,10]phenanthrenyl group, a pyrenyl group, yl, peryl, pentaphenyl, hexaphenyl, pentacene, thienyl, furyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothiophenyl, dibenzofuranyl, dibenzothiophenyl, benzocarbazolyl, dibenzocarbazolyl, dibenzothiophenyl, pyridyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, thiadiazolyl, oxadiazolyl, pyrazinyl, pyrimidinyl, pyridazinyl, triazinyl, quinolyl, isoquinolyl, benzoquinolyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, isobenzothiazolyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, imidazopyridinyl, imidazopyrimidinyl, and azacarbazolyl; and

[0393] -S(=O) 2 (Q 601 ) and -P(=O)(Q 601 )(Q 602 ),and

[0394] Q 601 and Q 602 Same as described above.

[0395] The electron transport region may include at least one compound selected from compound ET1 to compound ET36, but the embodiments of the present disclosure are not limited thereto:

[0396]

[0397]

[0398]

[0399]

[0400] The electron transport region may include 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline (BCP), 4,7-diphenyl-1,10-phenanthroline (Bphen), Alq 3 At least one compound selected from the group consisting of BAlq, 3-(biphenyl-4-yl)-5-(4-tert-butylphenyl)-4-phenyl-4H-1,2,4-triazole (TAZ) and NTAZ:

[0401]

[0402] The thickness of the buffer layer, the hole blocking layer and the electron control layer can all be about To about In the range of, for example, about To about When the thicknesses of the buffer layer, the hole blocking layer, and the electron control layer are within these ranges, the electron transport region may have excellent hole blocking characteristics or electron control characteristics without significantly increasing the driving voltage.

[0403] The thickness of the electron transport layer can be about To about For example, for approximately To about When the thickness of the electron transport layer is within the above range, excellent electron transport characteristics may be obtained without significantly increasing driving voltage.

[0404] In addition to the above materials, the electron transport region (eg, the electron transport layer in the electron transport region) may further include a metal-containing material.

[0405] The metal-containing material may include at least one selected from an alkali metal complex and an alkaline earth metal complex. The alkali metal complex may include a metal ion selected from Li ions, Na ions, K ions, Rb ions, and Cs ions, and the alkaline earth metal complex may include a metal ion selected from Be ions, Mg ions, Ca ions, Sr ions, and Ba ions. The ligand coordinated with the metal ion of the alkali metal complex or the alkaline earth metal complex may be selected from hydroxyquinoline, hydroxyisoquinoline, hydroxybenzoquinoline, hydroxyacridine, hydroxyphenanthridine, hydroxyphenyloxazole, hydroxyphenylthiazole, hydroxyphenyloxadiazole, hydroxyphenylthiadiazole, hydroxyphenylpyridine, hydroxyphenylbenzimidazole, hydroxyphenylbenzothiazole, bipyridine, phenanthroline, and cyclopentadiene, but the embodiments of the present disclosure are not limited thereto.

[0406] For example, the metal-containing material may include a Li complex. The Li complex may include, for example, compound ET-D1 (lithium quinolate, LiQ) or ET-D2.

[0407]

[0408] The electron transport region may include an electron injection layer that facilitates injection of electrons from the second electrode 190. The electron injection layer may be in direct contact with the second electrode 190.

[0409] The electron injection layer may have: i) a single layer structure including a single layer including a single material; ii) a single layer structure including a single layer including a plurality of different materials; or iii) a multilayer structure having a plurality of layers including a plurality of different materials.

[0410] The electron injection layer may include 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.

[0411] The alkali metal may be selected from Li, Na, K, Rb and Cs. In one embodiment, the alkali metal may be Li, Na or Cs. In one or more embodiments, the alkali metal may be Li or Cs, but the embodiments of the present disclosure are not limited thereto.

[0412] The alkaline earth metal may be selected from Mg, Ca, Sr and Ba.

[0413] The rare earth metal may be selected from Sc, Y, Ce, Tb, Yb and Gd.

[0414] The alkali metal compound, the alkaline earth metal compound and the rare earth metal compound may each be independently selected from oxides and halides (eg, fluorides, chlorides, bromides or iodides) of alkali metals, alkaline earth metals and rare earth metals.

[0415] The alkali metal compound may be selected from alkali metal oxides (such as Li 2 O、Cs 2 O or K 2 O) and an alkali metal halide (such as LiF, NaF, CsF, KF, LiI, NaI, CsI or KI). In one embodiment, the alkali metal compound can be selected from LiF, Li 2 O, NaF, LiI, NaI, CsI, and KI, but the embodiments of the present disclosure are not limited thereto.

[0416] The alkaline earth metal compound may be selected from alkaline earth metal oxides (such as BaO, SrO, CaO, Ba x Sr 1-xO (0 < x < 1) or Ba x Ca 1-x O (0 < x < 1)). In one embodiment, the alkaline earth metal compound can be selected from BaO, SrO, and CaO, but the embodiments of the present disclosure are not limited thereto.

[0417] The rare earth metal compound can be selected from YbF 3 , ScF 3 , Sc 2 O 3 , Y 2 O 3 , Ce 2 O 3 , GdF 3 and TbF 3 . In one embodiment, the rare earth metal compound can be selected from YbF 3 , ScF 3 , TbF 3 , YbI 3 , ScI 3 and TbI 3 , but the embodiments of the present disclosure are not limited thereto.

[0418] The alkali metal complex, alkaline earth metal complex, and rare earth metal complex can include the ions of the alkali metal, alkaline earth metal, and rare earth metal as described above, and the ligands coordinated with the metal ions of the alkali metal complex, alkaline earth metal complex, or rare earth metal complex can be selected from hydroxyquinoline, hydroxyisoquinoline, hydroxybenzoquinoline, hydroxyacridine, hydroxyphenanthridine, hydroxyphenyl oxazole, hydroxyphenyl thiazole, hydroxyphenyl oxadiazole, hydroxyphenyl thiadiazole, hydroxyphenyl pyridine, hydroxyphenyl benzimidazole, hydroxyphenyl benzothiazole, bipyridine, phenanthroline, and cyclopentadiene, but the embodiments of the present disclosure are not limited thereto.

[0419] The electron injection layer can include the 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 as described above, and in one or more embodiments, the electron injection layer can further include an organic material. When the electron injection layer further includes an organic material, the 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 can be uniformly or non-uniformly dispersed in the matrix including the organic material.

[0420] The thickness of the electron injection layer can be in the range of about to about , for example, in the range of about to about If the thickness of the electron injection layer is within the above range, excellent electron injection characteristics can be obtained without significantly increasing the driving voltage.

[0421] The second electrode 190

[0422] The second electrode 190 may be located on the organic layer 150 having such a structure. The second electrode 190 may be a cathode as an electron injection electrode, and in this regard, metals, alloys, conductive compounds, and mixtures thereof each having a low work function may be used as a material forming the second electrode 190.

[0423] The second electrode 190 may include at least one selected from 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 the embodiments of the present disclosure are not limited thereto. The second electrode 190 may be a transmissive electrode, a semi-transmissive electrode, or a reflective electrode.

[0424] The second electrode 190 may have a single-layer structure or a multi-layer structure including two or more layers.

[0425] A layer constituting a hole transport region, an emission layer, and a layer constituting an electron transport region may each be independently formed in a specific region by using one or more suitable methods selected from vacuum deposition, spin coating, casting, Langmuir-Blodgett (LB) deposition, inkjet printing, laser printing, and laser induced thermal imaging (LITI).

[0426] When the layer constituting the hole transport region, the emission layer, and the layer constituting the electron transport region are formed by vacuum deposition, the deposition temperature may be about 100° C. to about 500° C., about 10 -8 Up to about 10 -3 Torr vacuum and approx. / second to approximately The deposition was performed at a deposition rate of 2000 Å / s.

[0427] When a layer constituting a hole transport region, an emission layer, and a layer constituting an electron transport region are formed by spin coating, the spin coating may be performed at a coating speed of about 2000 rpm to about 5000 rpm and at a heat treatment temperature of about 80°C to about 200°C, depending on the materials to be included in the layers and the structure of each layer to be formed.

[0428] General definition of at least some substituents

[0429] As used herein, the term "C 1 -C 60"Alkyl" refers to a linear or branched saturated aliphatic hydrocarbon monovalent group having 1 to 60 carbon atoms, examples of which include methyl, ethyl, propyl, isobutyl, sec-butyl, tert-butyl, pentyl, isopentyl and hexyl. As used herein, the term "C 1 -C 60 "Alkylene" refers to C 1 -C 60 The alkyl group has a divalent group having substantially the same structure.

[0430] As used herein, the term "C 2 -C 60 "Alkenyl" refers to 2 -C 60 Alkyl refers to a hydrocarbon group having at least one carbon-carbon double bond at the main chain (e.g., in the middle) or at the end (e.g., terminal), examples of which include ethenyl, propenyl, and butenyl. As used herein, the term “C 2 -C 60 "Alkenylene" refers to C 2 -C 60 An alkenyl group has a divalent group having substantially the same structure.

[0431] As used herein, the term "C 2 -C 60 "Alkynyl" refers to a C 2 -C 60 The alkyl group is a hydrocarbon group having at least one carbon-carbon triple bond at the main chain (e.g., in the middle) or at the end (e.g., terminal), examples of which include ethynyl and propynyl. As used herein, the term “C 2 -C 60 "Alkynylidene" refers to a C 2 -C 60 Alkynyl groups have substantially the same structure as divalent groups.

[0432] As used herein, the term "C 1 -C 60 "Alkoxy" refers to -OA 101 (Among them, A 101 C 1 -C 60 An alkyl group is a monovalent group represented by an alkyl group, examples of which include a methoxy group, an ethoxy group and an isopropoxy group.

[0433] As used herein, the term "C 3 -C 10 "Cycloalkyl" refers to a monovalent saturated hydrocarbon monocyclic group having 3 to 10 carbon atoms, examples of which include cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl and cycloheptyl. As used herein, the term "Cycloalkyl" refers to a monovalent saturated hydrocarbon monocyclic group having 3 to 10 carbon atoms, examples of which include cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl and cycloheptyl. 3 -C 10 "Cycloalkylene" refers to 3 -C 10The cycloalkyl group has a divalent group having substantially the same structure.

[0434] As used herein, the term "C 1 -C 10 The term "heterocycloalkyl" as used herein refers to a monovalent saturated monocyclic group having at least one heteroatom selected from N, O, Si, P and S as ring atoms and 1 to 10 carbon atoms, and examples thereof include 1,2,3,4-oxatriazolidinyl, tetrahydrofuranyl and tetrahydrothienyl. 1 -C 10 "Heterocycloalkylene" refers to a C 1 -C 10 The heterocycloalkyl group has a divalent group having substantially the same structure.

[0435] As used herein, the term "C 3 -C 10 "Cycloalkenyl" refers to a monovalent monocyclic group having 3 to 10 carbon atoms and at least one carbon-carbon double bond in its ring and having no aromaticity (e.g., the entire ring and / or group has no aromaticity), examples of which include cyclopentenyl, cyclohexenyl, and cycloheptenyl. As used herein, the term "C 3 -C 10 "Cycloalkenylene" refers to 3 -C 10 The cycloalkenyl group is a divalent group having substantially the same structure.

[0436] As used herein, the term "C 1 -C 10 The term "heterocycloalkenyl group" refers to a monovalent monocyclic group having at least one heteroatom selected from N, O, Si, P and S as ring atoms, 1 to 10 carbon atoms and at least one double bond in its ring. 1 -C 10 Non-limiting examples of heterocycloalkenyl groups include 4,5-dihydro-1,2,3,4-oxatriazolyl, 2,3-dihydrofuranyl, and 2,3-dihydrothienyl. As used herein, the term “C 1 -C 10 "Heterocycloalkenylene" refers to a C 1 -C 10 The heterocycloalkenyl group has a divalent group having substantially the same structure.

[0437] As used herein, the term "C 6 -C 60 "Aryl" refers to a monovalent group having a carbocyclic aromatic system containing 6 to 60 carbon atoms. 6 -C 60 "Arylene" refers to a divalent group having a carbocyclic aromatic system containing 6 to 60 carbon atoms. 6 -C60 Non-limiting examples of aryl groups include phenyl, naphthyl, anthracenyl, phenanthrenyl, pyrenyl, and When C 6 -C 60 Aryl and C 6 -C 60 When the arylene groups each include two or more rings, the plurality of rings may be fused to each other (eg, combined together).

[0438] As used herein, the term "C 1 -C 60 The term "heteroaryl" as used herein refers to a monovalent group having a heterocyclic aromatic system having at least one heteroatom selected from N, O, Si, P and S as a ring-forming atom in addition to 1 to 60 carbon atoms. 1 -C 60 The term "heteroarylene group" refers to a divalent group having a heterocyclic aromatic system having at least one hetero atom selected from N, O, Si, P and S as a ring-forming atom in addition to 1 to 60 carbon atoms. 1 -C 60 Non-limiting examples of heteroaryl groups include pyridinyl, pyrimidinyl, pyrazinyl, pyridazinyl, triazinyl, quinolinyl, and isoquinolinyl. 1 -C 60 Heteroaryl and C 1 -C 60 When the heteroarylene group includes two or more rings, the plurality of rings may be fused to each other (eg, combined together).

[0439] As used herein, the term "C 6 -C 60 "Aryloxy" refers to -OA 102 (Among them, A 102 C 6 -C 60 Aryl), as used herein, 6 -C 60 "Arylthio" refers to -SA 103 (Among them, A 103 C 6 -C 60 aryl).

[0440] As used herein, the term "monovalent non-aromatic condensed polycyclic group" refers to a monovalent group having two or more rings condensed to each other (e.g., combined together), only carbon atoms (e.g., having 8 to 60 carbon atoms) as ring atoms, and not having aromaticity in its entire molecular structure (e.g., the entire group and / or molecule has no aromaticity). Examples of monovalent non-aromatic condensed polycyclic groups include fluorenyl. As used herein, the term "divalent non-aromatic condensed polycyclic group" refers to a divalent group having substantially the same structure as a monovalent non-aromatic condensed polycyclic group.

[0441] The term "monovalent non-aromatic condensed heteropolycyclic group" as used herein refers to a monovalent group having two or more rings condensed with each other (e.g., combined together), having at least one heteroatom selected from N, O, Si, P and S as ring-forming atoms other than carbon atoms (e.g., having 1 to 60 carbon atoms), and not having aromaticity in its entire molecular structure (e.g., the entire group and / or molecule has no aromaticity). An example of a monovalent non-aromatic condensed heteropolycyclic group is a carbazolyl group. The term "divalent non-aromatic condensed heteropolycyclic group" as used herein refers to a divalent group having substantially the same structure as a monovalent non-aromatic condensed heteropolycyclic group.

[0442] As used herein, the term "C 5 -C 60 "Carbocyclic group" refers to a monocyclic or polycyclic group having 5 to 60 carbon atoms, wherein the ring atoms are only carbon atoms. 5 -C 60 The carbocyclic group may be an aromatic carbocyclic group or a non-aromatic carbocyclic group. 5 -C 60 The carbocyclic group can be a ring (such as benzene), a monovalent group (such as phenyl) or a divalent group (such as phenylene). In one or more embodiments, the carbonyl group is connected to the carbonyl group. 5 -C 60 The number of substituents of the carbocyclic group, C 5 -C 60 The carbocyclic group may be a trivalent group or a tetravalent group.

[0443] As used herein, the term "C 1 -C 60 The term "heterocyclic group" refers to a group consisting of at least one heteroatom selected from N, O, Si, P and S other than carbon (the number of carbon atoms may be in the range of 1 to 60) as a ring-forming atom. 5 -C 60 The carbocyclic group has a group having substantially the same structure.

[0444] In this specification, the substituted C 3 -C 60 Carbocyclic, substituted C 5 -C60 Carbocyclic, substituted C 1 -C 60 Heterocyclic, substituted C 3 -C 10 Cycloalkylene, substituted C 1 -C 10 Heterocycloalkylene, substituted C 3 -C 10 Cycloalkenylene, substituted C 1 -C 10 Heterocycloalkenylene, substituted C 6 -C 60 Arylene, substituted C 1 -C 60 Heteroarylene, substituted divalent non-aromatic condensed polycyclic group, substituted divalent non-aromatic condensed heteropolycyclic group, substituted C 1 -C 60 Alkyl, substituted C 2 -C 60 Alkenyl, substituted C 2 -C 60 Alkynyl, substituted C 1 -C 60 Alkoxy, substituted C 3 -C 10 Cycloalkyl, substituted C 1 -C 10 Heterocycloalkyl, substituted C 3 -C 10 Cycloalkenyl, substituted C 1 -C 10 Heterocycloalkenyl, substituted C 6 -C 60 Aryl, substituted C 6 -C 60 Aryloxy, substituted C 6 -C 60 Arylthio, substituted C 1 -C 60 At least one substituent selected from the heteroaryl group, the substituted monovalent non-aromatic condensed polycyclic group and the substituted monovalent non-aromatic condensed heteropolycyclic group may be selected from:

[0445] Deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C 1 -C 60 Alkyl, C 2 -C 60 Alkenyl, C 2 -C 60 Alkynyl and C 1 -C 60 Alkoxy;

[0446] are substituted with deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C 3 -C 10 Cycloalkyl, C 1 -C 10 Heterocycloalkyl, C 3 -C 10 Cycloalkenyl, C 1 -C 10 Heterocycloalkenyl, C 6 -C 60 Aryl, C 6 -C 60 Aryloxy, C 6 -C 60 Arylthio, C 1 -C 60 Heteroaryl, 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 ) selected from at least one of C 1 -C 60 Alkyl, C 2 -C 60 Alkenyl, C 2 -C 60 Alkynyl and C 1 -C 60 Alkoxy;

[0447] C 3 -C 10 Cycloalkyl, C 1 -C 10 Heterocycloalkyl, C 3 -C 10 Cycloalkenyl, C 1 -C 10 Heterocycloalkenyl, C 6 -C 60 Aryl, C 6 -C 60 Aryloxy, C 6 -C 60 Arylthio, C 1 -C 60 Heteroaryl groups, monovalent non-aromatic condensed polycyclic groups and monovalent non-aromatic condensed heteropolycyclic groups;

[0448] are substituted with deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C 1 -C 60 Alkyl, C 2 -C 60 Alkenyl, C 2 -C 60 Alkynyl, C 1 -C 60 Alkoxy, C 3 -C 10 Cycloalkyl, C 1 -C 10 Heterocycloalkyl, C 3 -C 10 Cycloalkenyl, C 1 -C 10 Heterocycloalkenyl, C 6 -C 60 Aryl, C 6 -C 60 Aryloxy, C 6 -C 60 Arylthio, C 1 -C 60 Heteroaryl, 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 ) selected from at least one of C 3 -C 10 Cycloalkyl, C 1 -C 10 Heterocycloalkyl, C 3 -C 10 Cycloalkenyl, C 1 -C 10 Heterocycloalkenyl, C 6 -C 60 Aryl, C 6 -C 60 Aryloxy, C 6 -C 60 Arylthio, C 1 -C 60 Heteroaryl groups, monovalent non-aromatic condensed polycyclic groups, and monovalent non-aromatic condensed heteropolycyclic groups; and

[0449] -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 ),and

[0450] Q 11 To Q 13 , Q 21 To Q 23 and Q 31 To Q 33 can be independently selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C 1 -C 60 Alkyl, C 2 -C 60 Alkenyl, C 2 -C 60 Alkynyl, C 1 -C 60 Alkoxy, C 3 -C 10 Cycloalkyl, C 1 -C 10 Heterocycloalkyl, C 3 -C 10 Cycloalkenyl, C 1 -C 10 Heterocycloalkenyl, C 6 -C 60 Aryl, C 1 -C 60 Heteroaryl groups, monovalent non-aromatic condensed polycyclic groups, monovalent non-aromatic condensed heteropolycyclic groups, biphenyl groups and terphenyl groups.

[0451] The term "Ph" as used herein represents a phenyl group, the term "Me" as used herein represents a methyl group, the term "Et" as used herein represents an ethyl group, and the terms "ter-Bu" or "Bu" as used herein represent ethyl groups. t " represents a tert-butyl group, and the term "OMe" as used herein represents a methoxy group.

[0452] As used herein, the term "biphenyl" refers to a "phenyl group substituted with a phenyl group". In other words, a "biphenyl group" is a group having C 6 -C 60A phenyl group substituted with an aryl group as a substituent.

[0453] As used herein, the term "terphenyl" refers to a "phenyl group substituted with a biphenyl group". In other words, a "terphenyl group" is a phenyl group substituted with a C 6 -C 60 Aryl C 6 -C 60 Phenyl with aryl as substituent.

[0454] Unless otherwise defined, * and *' used herein refer to the binding position to the adjacent atom in the corresponding formula.

[0455] Hereinafter, a compound according to an embodiment and an organic light emitting device according to an embodiment will be described in detail with reference to examples.

[0456] Example

[0457] Example 1

[0458] Corning 15Ω / cm 2 The ITO glass substrate (anode) was cut into a size of 50 mm×50 mm×0.5 mm, and cleaned by ultrasonication using isopropyl alcohol and pure water for 10 minutes each, and then exposed to ultraviolet rays and ozone for 10 minutes. The ITO glass substrate was provided to a vacuum deposition apparatus.

[0459] Compound 2-TNATA (Duksan Hi-Metal Co., Ltd.) was vacuum deposited on an ITO glass substrate to form a A hole injection layer having a thickness of 1000 Å was formed, and a compound 4,4'-bis[N-(1-naphthyl)-N-phenylamino]biphenyl (NPB) (Tokuyama High-Tech Metals Co., Ltd.) was vacuum deposited to form a A hole transport layer with a thickness of , thereby forming a hole transport region.

[0460] Compound 4, compound TC4-106 and green phosphorescent dopant Ir(ppy) are co-deposited on the hole transport region. 3 [Bis-(1-phenylisoquinolyl) acetylacetonate iridium(III)](D1) (Aldrich) to form The thickness of the emission layer.

[0461] Deposition of Alq on the emitter layer 3 To form a An electron transport layer having a thickness of , and Al is vacuum deposited on the electron transport layer to form a A cathode with a thickness of is formed, thereby completing the manufacture of the organic light-emitting device.

[0462]

[0463] Examples 2 to 8 and Comparative Examples 1 to 9

[0464] In addition to the first host and the second host shown in Table 1 and the green phosphorescent dopant Ir(ppy) 3 An organic light-emitting device was manufactured in substantially the same manner as in Example 1, except that [bis-(1-phenylisoquinolyl) iridium(III) acetylacetonate](D1) (Aldrich) was used to form an emission layer.

[0465] Evaluation Example 1

[0466] The current density, efficiency, and lifetime of the organic light emitting devices manufactured according to Examples 1 to 8 and Comparative Examples 1 to 9 were measured at 600 nit by using Keithley SMU 236 and PR650 luminance meters, and the results thereof are shown in Table 1.

[0467] Table 1

[0468]

[0469]

[0470]

[0471] In Table 1, the terms "TC4-106" and "TC10-52" refer to compounds TC4 in which one R 13a and one R in compound TC10 13b The structures represented by Formula 10-106 and Formula 10-52, respectively, and refer to the above structures.

[0472] Referring to Table 1, it is confirmed that the organic light emitting devices of Examples 1 to 8 have high efficiency and excellent lifespan characteristics compared with the efficiency and lifespan characteristics of the organic light emitting devices of Comparative Examples 1 to 9.

[0473] Organic light emitting devices can have high efficiency and long lifetime.

[0474] It should be understood that the embodiments described herein should be considered in a descriptive sense only and not for purposes of limitation. Descriptions of features or aspects within each embodiment should generally be considered as available for other similar features or aspects in other embodiments.

[0475] It will be understood that, although the terms "first", "second", "third", etc. may be used herein to describe various elements, components, regions, layers and / or parts, these elements, components, regions, layers and / or parts should not be limited by these terms. These terms are used to distinguish one element, component, region, layer or part from another element, component, region, layer or part. Therefore, without departing from the spirit and scope of the present disclosure, the first element, component, region, layer or part described below may be named as the second element, component, region, layer or part.

[0476] For ease of explanation, spatial relative terms such as "under ...", "below ...", "below ...", "below ...", "above ...", "on ...", etc. may be used herein to describe the relationship of an element or feature to another element or feature as shown in the figures. It will be understood that, in addition to the orientation depicted in the figures, the spatial relative terms are intended to include different orientations of the device in use or operation. For example, if the device in the figure is turned over, the element described as "below" or "below" or "below" other elements or features will then be positioned as "above" the other elements or features. Therefore, the example terms "below ..." and "below ..." can include both above and below orientations. The device can be positioned otherwise (e.g., rotated 90 degrees or at other orientations), and the spatial relative descriptors used herein should be interpreted accordingly.

[0477] As used herein, the terms "substantially," "approximately," and similar terms are used as terms of approximation and not as terms of degree, and are intended to account for the inherent deviations of measurements or calculations that would be recognized by one of ordinary skill in the art. Additionally, when describing embodiments of the present disclosure, the use of "may" refers to "one or more embodiments of the present disclosure." As used herein, the term "using" and variations thereof may be considered synonymous with the term "utilizing" and variations thereof, respectively. Furthermore, the term "exemplary" is intended to indicate an example or illustration.

[0478] In addition, any numerical range stated herein is intended to include all subranges of the same numerical precision contained in the stated range. For example, the range "1.0 to 10.0" is intended to include all subranges between the stated minimum value 1.0 and the stated maximum value 10.0 (and including the stated minimum value 1.0 and the stated maximum value 10.0), that is, having a minimum value equal to or greater than 1.0 and a maximum value equal to or less than 10.0, such as 2.4 to 7.6. Any maximum numerical limit stated herein is intended to include all lower numerical limits contained therein, and any minimum numerical limit stated in this specification is intended to include all higher numerical limits contained therein. Therefore, the applicant reserves the right to modify this specification (including claims) to explicitly state any subrange contained in the scope explicitly stated herein.

[0479] Although one or more embodiments have been described with reference to the drawings, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope as defined by the claims and their equivalents.

Claims

1. An organic light-emitting device, comprising: a first electrode; a second electrode, facing the first electrode; as well as an organic layer, located between the first electrode and the second electrode, and including an emission layer, The emission layer includes a host, the host including a first compound represented by Formula 1 and a second compound represented by one selected from Formula 2-1 to Formula 2-6: Formula 1 Formula 3 Formula 4 Among them, in Formula 1 and Formula 2-1 to Formula 2-6, X1 to X5 are independently N or C(R5), At least one selected from X1 to X5 is C(R5), Y1 and Y2 are independently selected from N(R6), C(R6)(R7), Si(R6)(R7), B(R6), O and S, R1 to R7 are independently selected from the group represented by Formula 3 or Formula 4, hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, substituted or unsubstituted C1-C 60 Alkyl, substituted or unsubstituted C2-C 60 Alkenyl, substituted or unsubstituted C2-C 60 Alkynyl, substituted or unsubstituted C1-C 60 Alkoxy, substituted or unsubstituted C3-C 10 Cycloalkyl, substituted or unsubstituted C1-C 10 Heterocycloalkyl, substituted or unsubstituted C3-C 10 Cycloalkenyl, substituted or unsubstituted C1-C 10 Heterocycloalkenyl, substituted or unsubstituted C6-C 60 Aryl, substituted or unsubstituted C6-C 60 Aryloxy, substituted or unsubstituted C6-C 60 Arylthio, substituted or unsubstituted C1-C 60 heteroaryl, substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group, -Si(Q1)(Q2)(Q3), -N(Q1)(Q2), -B(Q1)(Q2), -C(=O)(Q1), -S(=O)(Q1) and -P(=O)(Q1)(Q2), X 11 To X 18 are independently N or C(R 13 ), Y 11 and Y 12 are independently selected from N(R 14 )、C(R 14 )(R 15 )、Si(R 14 )(R 15 )、B(R 14 ), O and S, R 11 To R 15 are independently selected from the group represented by Formula 4, hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, substituted or unsubstituted C1-C 60 Alkyl, substituted or unsubstituted C2-C 60 Alkenyl, substituted or unsubstituted C2-C 60 Alkynyl, substituted or unsubstituted C1-C 60 Alkoxy, substituted or unsubstituted C3-C 10 Cycloalkyl, substituted or unsubstituted C1-C 10 Heterocycloalkyl, substituted or unsubstituted C3-C 10 Cycloalkenyl, substituted or unsubstituted C1-C 10 Heterocycloalkenyl, substituted or unsubstituted C6-C 60 Aryl, substituted or unsubstituted C6-C 60 Aryloxy, substituted or unsubstituted C6-C 60 Arylthio, substituted or unsubstituted C1-C 60 heteroaryl, substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group, -Si(Q1)(Q2)(Q3), -N(Q1)(Q2), -B(Q1)(Q2), -C(=O)(Q1), -S(=O)(Q1) and -P(=O)(Q1)(Q2), Two adjacent groups selected from R1 to R7 and R 11 To R 15 Two adjacent groups selected from the group consisting of: 60 Carbocyclic or substituted or unsubstituted C1-C 60 Heterocyclic group, The substituted C3-C 60 Carbocyclic, substituted C5-C 60 Carbocyclic group, the substituted C1-C 60 Heterocyclic group, the substituted C1-C 60 Alkyl, the substituted C2-C 60 Alkenyl, the substituted C2-C 60 Alkynyl, the substituted C1-C 60 Alkoxy, the substituted C3-C 10 Cycloalkyl, the substituted C1-C 10 Heterocycloalkyl, the substituted C3-C 10 Cycloalkenyl, the substituted C1-C 10 Heterocycloalkenyl, the substituted C6-C 60 Aryl, the substituted C6-C 60 Aryloxy, the substituted C6-C 60 Arylthio, the substituted C1-C 60 At least one substituent in the heteroaryl group, the substituted monovalent non-aromatic condensed polycyclic group and the substituted monovalent non-aromatic condensed heteropolycyclic group is selected from: Deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl and C1-C 60 Alkoxy; are substituted with deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C3-C 10 Cycloalkyl, C1-C 10 Heterocycloalkyl, C3-C 10 Cycloalkenyl, C1-C 10 Heterocycloalkenyl, C6-C 60 Aryl, C6-C 60 Aryloxy, C6-C 60 Arylthio, C1-C 60 Heteroaryl, 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 ) selected from at least one of C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl and C1-C 60 Alkoxy; C3-C 10 Cycloalkyl, C1-C 10 Heterocycloalkyl, C3-C 10 Cycloalkenyl, C1-C 10 Heterocycloalkenyl, C6-C 60 Aryl, C6-C 60 Aryloxy, C6-C 60 Arylthio, C1-C 60 Heteroaryl groups, monovalent non-aromatic condensed polycyclic groups and monovalent non-aromatic condensed heteropolycyclic groups; are substituted with deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl, C1-C 60 Alkoxy, C3-C 10 Cycloalkyl, C1-C 10 Heterocycloalkyl, C3-C 10 Cycloalkenyl, C1-C 10 Heterocycloalkenyl, C6-C 60 Aryl, C6-C 60 Aryloxy, C6-C 60 Arylthio, C1-C 60 Heteroaryl, 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 ) selected from at least one of C3-C 10 Cycloalkyl, C1-C 10 Heterocycloalkyl, C3-C 10 Cycloalkenyl, C1-C 10 Heterocycloalkenyl, C6-C 60 Aryl, C6-C 60 Aryloxy, C6-C 60 Arylthio, C1-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 )和-P(=O)(Q 31 )(Q 32 ), In equation 3 and equation 4, L1, L2, L 11 and L 21 are independently selected from substituted or unsubstituted C5-C 60 Carbocyclic group and substituted or unsubstituted C1-C 60 Heterocyclic group, a1, a2, a11 and a21 are each independently an integer from 0 to 5, p and q are each independently an integer from 1 to 3, Ar1 to Ar3 are independently selected from substituted or unsubstituted C6-C 60 Aryl, substituted or unsubstituted C6-C 60 Aryloxy, substituted or unsubstituted C6-C 60 Arylthio, substituted or unsubstituted C1-C 60 heteroaryl, substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group, -Si(Q1)(Q2)(Q3), -N(Q1)(Q2), -B(Q1)(Q2), -C(=O)(Q1), -S(=O)(Q1) and -P(=O)(Q1)(Q2), In Formula 1, Formula 2-1 to Formula 2-6, Formula 3 and Formula 4, Q1 to Q3, Q 11 To Q 13 , Q 21 To Q 23 and Q 31 To Q 33 are independently selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl, C1-C 60 Alkoxy, C3-C 10 Cycloalkyl, C1-C 10 Heterocycloalkyl, C3-C 10 Cycloalkenyl, C1-C 10 Heterocycloalkenyl, C6-C 60 Aryl, C1-C 60 heteroaryl, monovalent non-aromatic condensed polycyclic group, monovalent non-aromatic condensed heteropolycyclic group, biphenyl group and terphenyl group, and *Indicates the binding site with the adjacent atom.

2. The organic light emitting device according to claim 1, wherein: i) X1 and X3 to X5 are all C(R5), and X2 is N, ii) X1 to X3 and X5 are all C(R5), and X4 is N, iii) X1 to X4 are all C(R5), and X5 is N, iv) X1, X4 and X5 are all C(R5), and X2 and X3 are all N, or v) X1 and X4 are both C(R5), and X2, X3 and X5 are all N.

3. The organic light emitting device according to claim 1, wherein: Y1 and Y2 are both C(R6)(R7), and R6 and R7 are both C1-C 20 alkyl.

4. The organic light emitting device according to claim 1, wherein: R1 to R7 are independently selected from the group represented by Formula 3 or Formula 4, hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, methyl, ethyl, propyl, isobutyl, sec-butyl, tert-butyl, pentyl, isopentyl, hexyl, C1-C 20 alkoxy, cyclopentyl, cyclohexyl, cycloheptyl, cyclopentenyl, cyclohexenyl, phenyl, naphthyl, fluorenyl, spirobifluorenyl, spirofluorene-benzofluorenyl, benzofluorenyl, dibenzofluorenyl, pyrenyl, phenalenyl, phenanthrenyl, anthracenyl, fluoranthenyl, benzo[9,10]phenanthrenyl, pyrrolyl, thienyl, furanyl, thirolyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, pyridinyl, pyrimidinyl, quinolyl, isoquinolyl, benzoquinolyl, naphthyridinyl, quinoxalinyl, quinazolinyl, carbazolyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, triazinyl, dibenzofuranyl, dibenzothienyl, biphenyl and terphenyl; and are substituted with deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, methyl, ethyl, propyl, isobutyl, sec-butyl, tert-butyl, pentyl, isopentyl, hexyl, C1-C 20 Alkoxy, cyclopentyl, cyclohexyl, cycloheptyl, cyclopentenyl, cyclohexenyl, phenyl, naphthyl, fluorenyl, spirobifluorenyl, spirofluorene-benzofluorenyl, benzofluorenyl, dibenzofluorenyl, pyrenyl, phenanthene, phenanthrenyl, anthracenyl, fluoranthenyl, benzo[9,10]phenanthrenyl, pyrrolyl, thienyl, furanyl, thirolyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, pyridinyl, pyrazinyl, pyrimidinyl, pyridazinyl, indolyl, isoindolyl, indazolyl, purinyl, quinolyl, isoquinolyl, benzoquinolyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, benzofuranyl a benzothiophenyl group, a benzothioxyl group, an isobenzothiazolyl group, a benzoxazolyl group, an isobenzoxazolyl group, a triazolyl group, a tetrazolyl group, an oxadiazolyl group, a triazinyl group, a dibenzofuranyl group, a dibenzothiophenyl group, a dibenzothioxyl group, a carbazolyl group, a benzocarbazolyl group, a dibenzocarbazolyl group, a thiadiazolyl group, an imidazopyridyl group, an imidazopyrimidyl group, an oxazolopyridyl group, a thiazopyridyl group, a benzonaphthyridinyl group, an azafluorenyl group, an azaspirobifluorenyl group, an azacarbazolyl group, an azadibenzofuranyl group, an azadibenzothiophenyl group, an azadibenzothioxyl group, a methyl group, an ethyl group, a propyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, a pentyl group, an isopentyl group, a hexyl group, a C1-C1 20 Alkoxy, cyclopentyl, cyclohexyl, cycloheptyl, cyclopentenyl, cyclohexenyl, phenyl, naphthyl, fluorenyl, spirobifluorenyl, spirofluorene-benzofluorenyl, benzofluorenyl, dibenzofluorenyl, pyrenyl, phenalenyl, phenanthrenyl, anthracenyl, fluoranthenyl, benzo[9,10]phenanthrenyl, pyrrolyl, thienyl, furanyl, thirolyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, pyridinyl, pyrazinyl, pyrimidinyl, pyridazinyl, indolyl, isoindolyl, indazolyl, purinyl, quinolyl, isoquinolyl, benzoquinolyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, benzofuranyl, benzothienyl, benzothiolaryl, isobenzothiazolyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, oxadiazolyl, triazinyl, dibenzofuranyl, dibenzothienyl, dibenzothiolaryl, carbazolyl, benzocarbazolyl, dibenzocarbazolyl, thiadiazolyl, imidazopyridyl, imidazopyrimidyl, oxazolopyridyl, thiazolopyridyl, benzonaphthyridinyl, azafluorenyl, azaspirobifluorenyl, azacarbazolyl, azadibenzofuranyl, azadibenzothienyl, azadibenzothiolaryl, biphenyl and terphenyl.

5. The organic light emitting device according to claim 1, wherein: L1, L2, L 11 and L 21 are independently selected from: Phenylene, cyclopentadienylene, indenylene, naphthylene, azulenylene, heptalenylene, indacenylene, acenaphthenylene, fluorenylene, spirobifluorenylene, benzofluorenylene, dibenzofluorenylene, phenanthrenylene, phenanthrenylene, anthracenylene, fluoranthenylene, benzo[9,10]phenanthrenylene, pyrenylene, pyrenylene phenylene, tetraphenylene, perylene, perylene, pentaphenylene, hexaphenylene, pentaphenylene, rubinylene, coronenylidene, ovaphenylene, pyrrolylene, thienylene, furanylene, imidazolylene, pyrazolylene, thiazolylene, isothiazolylene, oxazolylene, isoxazolylene, pyridinylene, pyrazinylene, pyrimidinylene, pyridazinylene, triazinylene, isoindolylene, indolylene, indazolylene, purinylene, quinolylene, isoquinolylene, benzoquinolylene, quinoxalylene, quinazolinylene, benzoquinolylene oxalinyl, benzoquinazolinyl, phthalazinyl, naphthyridinyl, cinnolinyl, carbazolyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, benzofuranyl, benzothiophenylene, isobenzothiazolyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, oxadiazolyl, dibenzofuranyl, dibenzothiophenylene, dibenzothiosilyl, benzocarbazolyl, dibenzocarbazolyl, thiadiazolyl, imidazopyridinyl, and imidazopyrimidinyl; and are substituted with deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C1-C 20 Alkyl, C1-C 20 Alkoxy, cyclopentyl, cyclohexyl, cycloheptyl, cyclopentenyl, cyclohexenyl, phenyl, biphenyl, terphenyl, pentalenyl, indenyl, naphthyl, azulenyl, heptalenyl, indacenyl, acenaphthenyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthrenyl, phenanthrenyl, anthracenyl, fluoranthenyl, benzo[9,10]phenanthrenyl, pyrenyl, phenyl, tetraphenyl, peryl, peryl, pentaphenyl, hexaphenyl, pentacene, rubinyl, corynyl, ovaphenyl, pyrrolyl, thienyl, furanyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, pyridinyl, pyrazinyl, pyrimidinyl, pyridazinyl, isoindolyl, indolyl, indazolyl, purinyl, quinolyl, isoquinolyl, benzoquinolyl, phthalazinyl, naphthyridinyl, quinoxalinyl, benzoquinoxalinyl, quinazole quinolinyl, cinnolinyl, carbazolyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, benzofuranyl, benzothiophenyl, isobenzothiazolyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, oxadiazolyl, triazine, dibenzofuranyl, dibenzothiophenyl, dibenzothiophenyl, benzothiazolyl, benzocarbazolyl, dibenzocarbazolyl, thiadiazolyl, imidazopyridinyl, imidazopyrimidinyl, -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 ) is at least one selected from phenylene, cyclopentadienylene, indenylene, naphthylene, azulenylene, heptalene, indacenylene, acenaphthenylene, fluorenylene, spirobifluorenylene, benzofluorenylene, dibenzofluorenylene, phenanthrenylene, phenanthrenylene, anthracenylene, fluoranthenylene, benzo[9,10]phenanthrenylene, pyrenylene, pyrenylene phenylene, tetraphenylene, perylene, perylene, pentaphenylene, hexaphenylene, pentaphenylene, rubinylene, coronenylidene, ovaphenylene, pyrrolylene, thienylene, furanylene, imidazolylene, pyrazolylene, thiazolylene, isothiazolylene, oxazolylene, isoxazolylene, pyridinylene, pyrazinylene, pyrimidinylene, pyridazinylene, triazinylene, isoindolylene, indolylene, indazolylene, purinylene, quinolylene, isoquinolylene, benzoquinolylene, quinoxalylene, quinazolinylene, benzoquinolylene oxalinyl, benzoquinazolinyl, phthalazinyl, naphthyridinyl, cinnolinyl, carbazolyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, benzofuranyl, benzothiophenylene, isobenzothiazolyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, oxadiazolyl, dibenzofuranyl, dibenzothiophenylene, dibenzothiosilyl, benzocarbazolyl, dibenzocarbazolyl, thiadiazolyl, imidazopyridinyl, and imidazopyrimidinyl, and Q 31 To Q 33 are independently selected from C1-C 10 Alkyl, C1-C 10 Alkoxy, phenyl, substituted with C1-C 10 Alkyl groups include phenyl, biphenyl, terphenyl and naphthyl.

6. The organic light emitting device according to claim 1, wherein: Ar1 to Ar3 are independently selected from: Phenyl, biphenyl, terphenyl, pentalenyl, indenyl, naphthyl, azulenyl, heptalenyl, indacenyl, acenaphthenyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthenyl, phenanthrenyl, anthracenyl, fluoranthenyl, benzo[9,10]phenanthrenyl, pyrenyl, phenyl, tetraphenyl, peryl, peryl, pentaphenyl, hexaphenyl, pentacene, rubinyl, corynyl, ovalenyl, pyrrolyl, thienyl, furanyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, pyridinyl, pyrazinyl, pyrimidinyl, pyridazinyl, isoindolyl, indolyl, indazolyl, purinyl, quinolyl, isoquinolyl, benzoquinolyl, phthalazinyl, naphthyridinyl, quinoxalinyl, benzoquinoxalinyl, Quinazolinyl, benzoquinazolinyl, cinnolinyl, carbazolyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, benzofuranyl, benzothiophenyl, isobenzothiazolyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, oxadiazolyl, triazinyl, dibenzofuranyl, dibenzothiophenyl, dibenzothioyl, benzocarbazolyl, dibenzocarbazolyl, thiadiazolyl, imidazopyridinyl and imidazopyrimidinyl; are substituted with deuterium, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C1-C 20 Alkyl, C1-C 20 Alkoxy, cyclopentyl, cyclohexyl, cycloheptyl, cyclopentenyl, cyclohexenyl, phenyl, biphenyl, terphenyl, pentalenyl, indenyl, naphthyl, azulenyl, heptalenyl, indacenyl, acenaphthenyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthrenyl, phenanthrenyl, anthracenyl, fluoranthenyl, benzo[9,10]phenanthrenyl, pyrenyl, phenyl, tetraphenyl, peryl, peryl, pentaphenyl, hexaphenyl, pentacene, rubinyl, corynyl, ovaphenyl, pyrrolyl, thienyl, furanyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, pyridinyl, pyrazinyl, pyrimidinyl, pyridazinyl, isoindolyl, indolyl, indazolyl, purinyl, quinolyl, isoquinolyl, benzoquinolyl, phthalazinyl, naphthyridinyl, quinoxalinyl, benzoquinoxalinyl, quinazole quinolinyl, cinnolinyl, carbazolyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, benzofuranyl, benzothiophenyl, isobenzothiazolyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, oxadiazolyl, triazine, dibenzofuranyl, dibenzothiophenyl, dibenzothiophenyl, benzothiazolyl, benzocarbazolyl, dibenzocarbazolyl, thiadiazolyl, imidazopyridinyl, imidazopyrimidinyl, -N(Q 31 )(Q 32 )、-Si(Q 31 )(Q 32 )(Q 33 ) and -P(=O)(Q 31 )(Q 32 ) is at least one selected from phenyl, biphenyl, terphenyl, pentalenyl, indenyl, naphthyl, azulenyl, heptalenyl, indacenyl, acenaphthenyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenaltenyl, phenanthrenyl, anthracenyl, fluoranthenyl, benzo[9,10]phenanthrenyl, pyrenyl, phenyl, tetraphenyl, peryl, peryl, pentaphenyl, hexaphenyl, pentacene, rubinyl, camphenyl, ovaphenyl, pyrrolyl, thienyl, furanyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, pyridinyl, pyrazinyl, pyrimidinyl, pyridazinyl, isoindolyl, indolyl, indazolyl, purinyl, quinolyl, isoquinolyl, benzoquinolyl, phthalazinyl, naphthyridinyl, quinoxalinyl, benzoquinoxalinyl, quinoline oxazolinyl, benzoquinazolinyl, cinnolinyl, carbazolyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, benzofuranyl, benzothiophenyl, isobenzothiazolyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, oxadiazolyl, triazinyl, dibenzofuranyl, dibenzothiophenyl, dibenzothiorolyl, benzocarbazolyl, dibenzocarbazolyl, thiadiazolyl, imidazopyridinyl, and imidazopyrimidinyl; and -N(Q1)(Q2), -B(Q1)(Q2), -S(=O)2(Q1) and -P(=O)(Q1)(Q2), and Q1, Q2 and Q 31 To Q 33 are independently selected from C1-C 20 Alkyl, C1-C 20 Alkoxy, phenyl, biphenyl, terphenyl, naphthyl and pyridyl.

7. The organic light emitting device according to claim 1, wherein: The first compound is represented by one selected from Formula 1-1 to Formula 1-8: Among them, in Formula 1-1 to Formula 1-8, R1 to R4 are independently the same as described in claim 1, and R 5a To R 5d , R 6a , R 6b , R 7a and R 7b are independently the same as described in conjunction with R5 to R7 in claim 1, and * represents a bonding position to the group represented by Formula 3 or Formula 4.

8. The organic light emitting device according to claim 1, wherein: The first compound is selected from Compound 1 to Compound 47, and The second compound is selected from compound TC1 to compound TC12: Among them, in compounds TC1 to TC12, R 11 , R 12 , Three Rs 13a and the four Rs 13b are independently selected from hydrogen, phenyl, 1-naphthyl, 2-naphthyl and a group represented by one of Formula 10-1 to Formula 10-110:

9. The organic light emitting device according to claim 1, wherein: The first electrode is an anode, The second electrode is a cathode, The organic layer further includes a hole transport region between the first electrode and the emission layer and an electron transport region between the emission layer and the second electrode. The hole transport region includes a hole injection layer, a hole transport layer, an emission auxiliary layer, an electron blocking layer or any combination thereof, and The electron transport region includes a hole blocking layer, an electron transport layer, an electron injection layer, or any combination thereof.

10. An electronic device, comprising: The organic light emitting device according to claim 1; as well as Thin Film Transistor, The first electrode of the organic light-emitting device is in electrical contact with one selected from a source electrode and a drain electrode of the thin film transistor.

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