Shrinking ring compound and organic light-emitting device including the same

Abstract

A condensed ring compound and an organic light-emitting device including the same are disclosed. The organic light-emitting device includes a condensed ring compound represented by Formula 1, wherein at least one of X4 to X 11 is C(R x ), and R x is a group represented by Formula 2: #imgabs0# The condensed ring compound represented by Formula 1 has a planar conformation due to the single bond connecting the 8-position and 8'-position of the spirobifluorene moiety. Therefore, the condensed ring compound can provide an organic light-emitting device having suitable hole mobility and thermal stability.

Description

[0001] This application claims the priority and benefit of Korean Patent Application No. 10-2019-0119827, filed with the Korean Intellectual Property Office on September 27, 2019, the entire contents of which are incorporated herein by reference. Technical Field

[0002] One or more aspects of embodiments of the present disclosure relate to a condensed-ring compound and an organic light-emitting device including the condensed-ring compound. Background Art

[0003] An organic light-emitting device is a self-emitting device that generates a full-color image and may also have a wide viewing angle, high contrast, short response time, and / or excellent characteristics in terms of brightness, driving voltage, and / or response speed as compared to devices in the prior art.

[0004] Example organic light-emitting devices include a first electrode disposed on a substrate and a hole transport region, an emission layer, an electron transport region, and a second electrode sequentially disposed 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. These carriers (holes and electrons) may recombine in the emission layer to generate excitons. These excitons may transition from an excited state to a ground state, thereby generating light. Summary of the Invention

[0005] One or more aspects of embodiments of the present disclosure relate to a condensed-ring compound and an organic light-emitting device including the condensed-ring compound.

[0006] Additional aspects will be partially set forth in the description below and will be partially apparent from the description, or may be learned by practice of the disclosed embodiments.

[0007] One or more example embodiments of the present disclosure provide a condensed-ring compound represented by Formula 1:

[0008] Formula 1

[0009]

[0010] Formula 2

[0011]

[0012] In Formulas 1 and 2,

[0013] X1 may be N or C(R1), X2 may be N or C(R2), X3 may be N or C(R3), X4 may be N, C(R4), or C(R x )), X5 may be N, C(R5), or C(Rx ), X6 can be N, C(R6) or C(R x ), X7 can be N, C(R7) or C(R x ), X8 can be N, C(R8) or C(R x ), X9 can be N, C(R9) or C(R x ), X 10 can be N, C(R 10 ), or C(R x ), X 11 can be N, C(R 11 ), or C(R x ), X 12 can be N or C(R 12 ), X 13 can be N or C(R 13 ), X 14 can be N or C(R 14 ),

[0014] X4 to X 11 At least one of them can be C(R x ), and R x can be a group represented by Formula 2,

[0015] L1 to L3 can each independently be selected from substituted or unsubstituted C5-C 60 carbocyclic group and substituted or unsubstituted C1-C 60 heterocyclic group,

[0016] a1 to a3 can each independently be an integer from 0 to 3,

[0017] When a1 is 0, -(L1) a1 - can be a single bond, when a2 is 0, -(L2) a2 - can be a single bond, when a3 is 0, -(L3) a3 - can be a single bond,

[0018] Ar1 and Ar2 can each independently be selected from substituted or unsubstituted C6-C 60 aryl group, substituted or unsubstituted C1-C 60 heteroaryl group, substituted or unsubstituted monovalent non-aromatic condensed polycyclic group and substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group,

[0019] b1 and b2 can each independently be an integer from 1 to 5,

[0020] R1 to R 14 can each independently be selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazone group, substituted or unsubstituted C1-C60 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 fused polycyclic group, substituted or unsubstituted monovalent non-aromatic fused heteropolycyclic group, -Si(Q1)(Q2)(Q3), -N(Q1)(Q2), -B(Q1)(Q2), -C(=O)(Q1), -S(=O)2(Q1) and -P(=O)(Q1)(Q2),

[0021] Substituted C5-C 60 Carbocyclic group, substituted C1-C 60 Heterocyclic group, substituted C1-C 60 Alkyl, substituted C2-C 60 Alkenyl, substituted C2-C 60 Alkynyl, substituted C1-C 60 Alkoxy, substituted C3-C 10 Cycloalkyl, substituted C1-C 10 Heterocycloalkyl, substituted C3-C 10 Cycloalkenyl, substituted C1-C 10 Heterocycloalkenyl, substituted C6-C 60 Aryl, substituted C6-C 60 Aryloxy, substituted C6-C 60 Arylthio, substituted C1-C 60 At least one substituent of heteroaryl, substituted monovalent non-aromatic fused polycyclic group and substituted monovalent non-aromatic fused heteropolycyclic group may be selected from:

[0022] Deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, nitro, amidino, hydrazino, hydrazono, C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl and C1-C 60 Alkoxy;

[0023] Each is independently substituted with at least one selected from deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, nitro, amidino, hydrazino, hydrazono, 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 fused polycyclic group, monovalent non-aromatic fused 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 ), and C1-C 60 alkyl, C2-C 60 alkenyl, C2-C 60 alkynyl, and C1-C 60 alkoxy;

[0024] 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 fused polycyclic group, and monovalent non-aromatic fused heteropolycyclic group;

[0025] Each is independently substituted with at least one selected from deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, nitro, amidino, hydrazino, hydrazono, 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 60Aryl, C6-C 60 Aryloxy, C6-C 60 Arylthio, C1-C 60 Heteroaryl, monovalent non-aromatic fused polycyclic group, monovalent non-aromatic fused 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, monovalent non-aromatic fused polycyclic group and monovalent non-aromatic fused heteropolycyclic group; and

[0026] -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 ),

[0027] Q1 to Q3, Q 11 to Q 13 、Q 21 to Q 23 and Q 31 to Q 33 can each independently be selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, nitro, amino, amidino, hydrazino, hydrazono, C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl, C1-C 60 Alkoxy, C3-C 10Cycloalkyl, C1-C 10 Heterocycloalkyl, C3-C 10 Cycloalkenyl, C1-C 10 Heterocycloalkenyl, C6-C 60 Aryl, C1-C 60 Heteroaryl, monovalent non-aromatic fused polycyclic group, monovalent non-aromatic fused heteropolycyclic group, biphenyl, and terphenyl, and

[0028] * indicates the binding position to an adjacent atom.

[0029] One or more exemplary embodiments of the present disclosure provide an organic light-emitting device including: 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, and the organic light-emitting device includes at least one ring-condensed compound represented by Formula 1. Description of the Drawings

[0030] Through the following description with reference to the drawings, the above and other aspects, features, and advantages of certain embodiments of the disclosure will become more apparent. In the drawings:

[0031] Figures 1 to 4 All are schematic diagrams of the structures of organic light-emitting devices according to embodiments. Detailed Description

[0032] Now, embodiments will be described in more detail. Examples of the embodiments are shown in the drawings, where the same reference numerals always denote the same elements, and a repeated description thereof will not be provided. In this regard, the present embodiments may have different forms and should not be construed as being limited to the descriptions set forth herein. Therefore, the embodiments are only described below with reference to the drawings to explain aspects of the present specification. As used herein, the term "and / or" includes any combination and all combinations of one or more of the related listed items. Throughout the disclosure, the expression "at least one (kind, person) of a, b, and c" may mean only a, only b, only c, both a and b (for example, a and b exist simultaneously), both a and c, both b and c, all of a, b, and c, or variations thereof.

[0033] As used herein, unless the context clearly indicates otherwise, the singular forms "a," "an (kind / person)," and "the (this)" are also intended to include the plural forms.

[0034] It will also be understood that the terms "include," "comprise," and / or their variations 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.

[0035] As used herein, when expressions such as "at least one of...", "one of...", and "selected from..." are placed after (or before) a series of elements, they modify the entire series of elements, rather than individual elements in the series. Additionally, when describing embodiments of the present disclosure, the use of "may" indicates "one or more embodiments of the present disclosure".

[0036] It will be understood that when a layer, region, or component is referred to as being "on" or "onto" another layer, region, or component, the layer, region, or component can be formed directly or indirectly on the other layer, region, or component. In some embodiments, for example, there may be an intermediate layer, intermediate region, or intermediate component.

[0037] For ease of illustration, the dimensions of the elements in the drawings may be exaggerated. In other words, since the dimensions and thicknesses of the components in the drawings are arbitrarily shown for ease of illustration, the following embodiments of the present disclosure are not limited thereto.

[0038] One or more exemplary embodiments of the present disclosure provide a ring - contracted compound represented by Formula 1:

[0039] Formula 1

[0040]

[0041] Formula 2

[0042]

[0043] Regarding Formula 1, X1 can be N or C(R1), X2 can be N or C(R2), X3 can be N or C(R3), X4 can be N, C(R4) or C(R x ), X5 can be N, C(R5) or C(R x ), X6 can be N, C(R6) or C(R x ), X7 can be N, C(R7) or C(R x ), X8 can be N, C(R8) or C(R x ), X9 can be N, C(R9) or C(R x ), X 10 can be N, C(R 10 ) or C(R x ), X 11 can be N, C(R 11 ) or C(R x ), X 12 can be N or C(R 12 ), X 13may be N or C(R 13 ), X 14 may be N or C(R 14 ), wherein at least one of X4 to X 11 may be C(R x ), and R x may be a group represented by Formula 2.

[0044] L1 to L3 in Formula 2 may each independently be selected from substituted or unsubstituted C5-C 60 carbocyclic groups and substituted or unsubstituted C1-C 60 heterocyclic groups.

[0045] L1 may be a linking group connecting the nitrogen atom to the Ar1 group, L2 may be a linking group connecting the nitrogen atom to the Ar2 group, and L3 may be a linking group connecting at least one carbon in Formula 1 to the nitrogen atom. L1 and L2 may each independently be a divalent linking group (e.g., see Formula 3-1), a trivalent linking group, a tetravalent linking group, a pentavalent linking group, or a hexavalent linking group depending on the number of Ar1 groups and Ar2 groups to which they are attached.

[0046] In one embodiment, L1 to L3 in Formula 2 may each independently be selected from:

[0047] phenylene, cyclopentadienylene, indenylene, naphthylene, azulylene, heptalenylene, indacenylene, acenaphthylene, fluorenylene, spirobifluorenylene, benzo[9,10]fluorenylene, phenalenylene, phenanthrylene, anthrylene, fluoranthenylene, benzo[9,10]phenanthrylene, pyrenylene, -yl, terphenylene, picenylene, perylenylene, pentaphenylene, hexaphenylene, pyrrolyl, imidazolyl, pyrazolyl, pyridyl, pyrazinyl, pyrimidinyl, pyridazinyl, isoindolyl, indolyl, indazolyl, purinyl, quinolinyl, isoquinolinyl, benzoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, carbazolyl, benzothiophenylene, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzoxazolyl, benzimidazolyl, furyl, benzofuryl, thienyl, benzothienyl, thiazolyl, isothiazolyl, benzothiazolyl, isoxazolyl, oxazolyl, triazolyl, tetrazolyl, oxadiazolyl, triazinyl, isobenzoxazolyl, dibenzofuryl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl, and dibenzothiophenylene; and

[0048] each independently substituted with deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazino, hydrazono, C1-C 20 alkyl, C1-C 20Alkoxy, phenyl, cyclopentadienyl, indenyl, naphthyl, azulyl, heptaleneyl, indacenyl, acenaphthylenyl, fluorenyl, spirobifluorenyl, benzofluorenyl, phenalenyl, phenanthryl, anthryl, fluoranthenyl, benzo[9,10]phenanthryl, pyrenyl, yl, tetraphenylenyl, picenyl, perylenyl, pentaphenylenyl, hexaphenylenyl, pyrrolyl, imidazolyl, pyrazolyl, pyridyl, pyrazinyl, pyrimidinyl, pyridazinyl, isoindolyl, indolyl, indazolyl, purinyl, quinolinyl, isoquinolinyl, benzoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, carbazolyl, benzosilolyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzoxazolyl, benzimidazolyl, furyl, benzofuryl, thienyl, benzothienyl, thiazolyl, isothiazolyl, benzothiazolyl, isoxazolyl, oxazolyl, triazolyl, tetrazolyl, oxadiazolyl, triazinyl, isobenzoxazolyl, dibenzofuryl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, -Si(Q 31 )(Q 32 )(Q 33 ), -N(Q 31 )(Q 32 ), and -B(Q 31 )(Q 32 ), at least one selected from phenylene, cyclopentadienylene, indenylene, naphthylene, azulylene, heptaleneylene, indacenylene, acenaphthylenylene, fluorenylene, spirobifluorenylene, benzofluorenylene, phenalenylene, phenanthrylene, anthrylene, fluoranthenylene, benzo[9,10]phenanthrylene, pyrenylene, yl, tetraphenylenylene, picenylene, perylenylene, pentaphenylenylene, hexaphenylenylene, pyrrolylene, imidazolylene, pyrazolylene, pyridylene, pyrazinylene, pyrimidinylene, pyridazinylene, isoindolylene, indolylene, indazolylene, purinylene, quinolinylene, isoquinolinylene, benzoquinolinylene, phthalazinylene, naphthyridinylene, quinoxalinylene, quinazolinylene, cinnolinylene, carbazolylene, benzosilolylene, phenanthridinylene, acridinylene, phenanthrolinylene, phenazinylene, benzoxazolylene, benzimidazolylene, furylene, benzofurylene, thienylene, benzothienylene, thiazolylene, isothiazolylene, benzothiazolylene, isoxazolylene, oxazolylene, triazolylene, tetrazolylene, oxadiazolylene, triazinylene, isobenzoxazolylene, dibenzofurylene, dibenzothienylene, benzocarbazolylene, dibenzocarbazolylene, and dibenzosilolylene, and

[0049] Q 31 to Q 33 can each independently be selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, nitro, amino, amidino, hydrazino, hydrazono, C1-C 60 alkyl, C2-C60 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 and terphenyl.

[0050] In one or more embodiments, L1 to L3 in Formula 2 can each independently be selected from the groups represented by Formulas 3-1 to 3-43:

[0051]

[0052]

[0053]

[0054] In Formulas 3-1 to 3-43,

[0055] Y1 can be O, S, C(Z8)(Z9), N(Z5) or Si(Z6)(Z7),

[0056] Z1 to Z9 can each independently be selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazino, hydrazono, carboxylic acid or its salt, sulfonic acid or its salt, phosphoric acid or its salt, C1-C 20 alkyl, C1-C 20 alkoxy, phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthryl, anthracenyl, pyrenyl, group, pyridyl, pyrazinyl, pyrimidinyl, pyridazinyl, quinolinyl, isoquinolinyl, quinoxalinyl, quinazolinyl, carbazolyl, dibenzofuranyl, dibenzothiophenyl, triazinyl, benzimidazolyl, phenanthrolinyl, -Si(Q 31 )(Q 32 )(Q 33 ), -N(Q 31 )(Q 32 ), and -B(Q 31 )(Q 32 ),

[0057] Q 31 to Q 33 can each independently be selected from C1-C 20 alkyl, C1-C 20Alkoxy, phenyl, biphenyl, terphenyl, naphthyl, and pyridyl,

[0058] d2 can be an integer from 0 to 2,

[0059] d3 can be an integer from 0 to 3,

[0060] d4 can be an integer from 0 to 4,

[0061] d5 can be an integer from 0 to 5,

[0062] d6 can be an integer from 0 to 6,

[0063] d8 can be an integer from 0 to 8, and

[0064] * and *' both represent bonding positions to adjacent atoms.

[0065] In one embodiment, -(L1) in Formula 2 a1 -, -(L2) a2 -, and -(L3) a3 - can each independently be selected from a single bond and the groups represented by Formulas 4-1 to 4-3:

[0066]

[0067] In Formulas 4-1 to 4-3, * and *' both represent bonding positions to adjacent atoms.

[0068] Regarding Formula 2, a1 represents the number of L1, a2 represents the number of L2, a3 represents the number of L3, and a1 to a3 can each independently be an integer from 0 to 3.

[0069] When a1 is 0, -(L1) a1 - is a single bond, when a2 is 0, -(L2) a2 - is a single bond, when a3 is 0, -(L3) a3 - is a single bond, when a1 is 2 or greater, multiple L1s can be the same as or different from each other, when a2 is 2 or greater, multiple L2s can be the same as or different from each other, and when a3 is 2 or greater, multiple L3s can be the same as or different from each other.

[0070] In one embodiment, a1 to a3 in Formula 2 can each independently be 0 or 1.

[0071] Ar1 and Ar2 in Formula 2 can each independently be selected from substituted or unsubstituted C6-C 60 aryl, substituted or unsubstituted C1-C 60 heteroaryl, substituted or unsubstituted monovalent non-aromatic condensed polycyclic groups, and substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic groups.

[0072] In one embodiment, Ar1 and Ar2 in Formula 2 can each independently be selected from:

[0073] cyclopentyl, cyclohexyl, cycloheptyl, cyclopentenyl, cyclohexenyl, phenyl, bicyclopentadienyl, indenyl, naphthyl, azulyl, heptalene, indacenyl, acenaphthylenyl, fluorenyl, spirobifluorenyl, spirocyclopentane-fluorenyl, spirocyclohexane-fluorenyl, spirofluorene-benzofluorene, benzofluorene, dibenzofluorene, phenalenyl, phenanthrenyl, anthracenyl, fluoranthenyl, benzo[9,10]phenanthrenyl, pyrenyl, -yl, tetraphenyl, picenyl, perylenyl, pentaphenyl, pyrrolyl, imidazolyl, pyrazolyl, pyridyl, pyrazinyl, pyrimidinyl, pyridazinyl, isoindolyl, indolyl, indazolyl, purinyl, quinolinyl, isoquinolinyl, benzoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, carbazolyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzoxazolyl, benzimidazolyl, furyl, benzofuryl, thienyl, benzothienyl, thiazolyl, isothiazolyl, benzothiazolyl, isoxazolyl, oxazolyl, triazolyl, tetrazolyl, oxadiazolyl, triazinyl, isobenzoxazolyl, dibenzofuryl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl, and dibenzosilolyl;

[0074] each independently substituted with from deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, nitro, amidino, hydrazino, hydrazono, C1-C 20 alkyl, C1-C 20 alkoxy, cyclopentyl, cyclohexyl, cycloheptyl, cyclopentenyl, cyclohexenyl, phenyl, bicyclopentadienyl, indenyl, naphthyl, azulyl, heptalene, indacenyl, acenaphthylenyl, fluorenyl, spirobifluorenyl, spirocyclopentane-fluorenyl, spirocyclohexane-fluorenyl, spirofluorene-benzofluorene, benzofluorene, dibenzofluorene, phenalenyl, phenanthrenyl, anthracenyl, fluoranthenyl, benzo[9,10]phenanthrenyl, pyrenyl, -yl, tetraphenyl, picenyl, perylenyl, pentaphenyl, pyrrolyl, imidazolyl, pyrazolyl, pyridyl, pyrazinyl, pyrimidinyl, pyridazinyl, isoindolyl, indolyl, indazolyl, purinyl, quinolinyl, isoquinolinyl, benzoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, carbazolyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzoxazolyl, benzimidazolyl, furyl, benzofluorene, thienyl, benzothienyl, thiazolyl, isothiazolyl, benzothiazolyl, isoxazolyl, oxazolyl, triazolyl, tetrazolyl, oxadiazolyl, triazinyl, isobenzoxazolyl, dibenzofuryl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, -Si(Q 31 )(Q 32 )(Q 33 ), -N(Q 31 )(Q32 ), and -B(Q 31 )(Q 32 ) at least one selected from cyclopentyl, cyclohexyl, cycloheptyl, cyclopentenyl, cyclohexenyl, phenyl, bicyclopentadienyl, indanyl, naphthyl, azulyl, heptaleneyl, indacenyl, acenaphthylenyl, fluorenyl, spirobifluorenyl, spirocyclopentane-fluorenyl, spirocyclohexane-fluorenyl, spirofluorene-benzofluorene, benzofluorene, dibenzofluorene, phenalenyl, phenanthrenyl, anthracenyl, fluoranthenyl, benzo[9,10]phenanthrenyl, pyrenyl, yl, tetraphenyl, picenyl, perylenyl, pentaphenyl, hexaphenyl, pyrrolyl, imidazolyl, pyrazolyl, pyridyl, pyrazinyl, pyrimidinyl, pyridazinyl, isoindolyl, indolyl, indazolyl, purinyl, quinolinyl, isoquinolinyl, benzoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, carbazolyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzoxazolyl, benzimidazolyl, furyl, benzofuryl, thienyl, benzothienyl, thiazolyl, isothiazolyl, benzothiazolyl, isoxazolyl, oxazolyl, triazolyl, tetrazolyl, oxadiazolyl, triazinyl, isobenzoxazolyl, dibenzofuryl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl and dibenzosilolyl, and

[0075] Q 31 to Q 33 can each independently be selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, nitro, amino, amidino, hydrazino, hydrazono, 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 fused polycyclic group, monovalent non-aromatic fused heteropolycyclic group, biphenyl and terphenyl.

[0076] In one or more embodiments, Ar1 and Ar2 in Formula 2 can each independently be selected from the groups represented by Formula 5-1 to Formula 5-80:

[0077]

[0078]

[0079]

[0080] In Formulas 5-1 to 5-80,

[0081] Y 31 may be O, S, C(Z 38 )(Z 39 ), N(Z 35 ), or Si(Z 36 )(Z 37 ),

[0082] Z 31 to Z 39 may each independently be selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, nitro, amidino, hydrazino, hydrazono, C1-C 20 alkyl, C1-C 20 alkoxy, cyclopentyl, cyclohexyl, cycloheptyl, cyclopentenyl, cyclohexenyl, phenyl, biphenyl, naphthyl, fluorenyl, spirobifluorenyl, spirofluorene-benzo[9,10]fluorene, benzo[9,10]fluorene, dibenzo[9,10]fluorene, phenalenyl, phenanthrenyl, anthracenyl, fluoranthenyl, benzo[9,10]phenanthrenyl, pyridyl, pyrazinyl, pyrimidinyl, quinolinyl, isoquinolinyl, benzoquinolinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, carbazolyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, triazinyl, dibenzofuranyl, dibenzothiophenyl, dibenzosilolyl, -Si(Q 31 )(Q 32 )(Q 33 ), -N(Q 31 )(Q 32 ), and -B(Q 31 )(Q 32 ),

[0083] e2 may be selected from 1 and 2,

[0084] e3 may be an integer from 1 to 3,

[0085] e4 may be an integer from 1 to 4,

[0086] e5 may be an integer from 1 to 5,

[0087] e6 may be an integer from 1 to 6,

[0088] e7 may be an integer from 1 to 7,

[0089] e9 may be an integer from 1 to 9,

[0090] Q 31 to Q 33 may each independently be selected from C1-C 20 alkyl, C1-C 20 alkoxy, phenyl, biphenyl, terphenyl, naphthyl, and pyridyl, and

[0091] * represents the binding site to the adjacent atom.

[0092] In one or more embodiments, Ar1 and Ar2 in Formula 2 may each independently be selected from the groups represented by Formulas 6-1 to 6-40:

[0093]

[0094]

[0095] In Formulas 6-1 to 6-40,

[0096] “Ph” represents phenyl, and

[0097] * represents the binding site to the adjacent atom.

[0098] In one embodiment, in Formula 2, the group represented by *-(L1) a1 -(Ar1) b1 and the group represented by *-(L2) a2 -(Ar2) b2 may each independently be selected from the groups represented by Formulas 7-1 to 7-37, but the embodiments of the present disclosure are not limited thereto:

[0099]

[0100]

[0101] In Formulas 7-1 to 7-37,

[0102] “Ph” represents phenyl, and

[0103] * represents the binding site to the adjacent atom.

[0104] Regarding Formula 2, b1 represents the number of Ar1 groups substituted onto L1, b2 represents the number of Ar2 groups substituted onto L2, and b1 and b2 may each independently be an integer from 1 to 5.

[0105] When b1 is 2 or greater, the multiple Ar1s may be the same as or different from each other, and when b2 is 2 or greater, the multiple Ar2s may be the same as or different from each other.

[0106] In one embodiment, b1 and b2 in Formula 2 may both be 1.

[0107] R1 to R in Formula 1 14 may each independently be selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazino, hydrazono, substituted or unsubstituted C1-C 60 alkyl, substituted or unsubstituted C2-C 60Alkenyl, 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 fused polycyclic group, substituted or unsubstituted monovalent non-aromatic fused heteropolycyclic group, -Si(Q1)(Q2)(Q3), -N(Q1)(Q2), -B(Q1)(Q2), -C(=O)(Q1), -S(=O)2(Q1) and -P(=O)(Q1)(Q2), and

[0108] Q1 to Q3 can each independently be selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, nitro, amidino, hydrazino, hydrazono, 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 fused polycyclic group, monovalent non-aromatic fused heteropolycyclic group, biphenyl and terphenyl.

[0109] In one embodiment, R1 to R in Formula 1 14 can each independently be selected from:

[0110] Hydrogen, deuterium, -F, -Cl, -Br, -I, cyano, C1-C 20 Alkyl and C1-C 20 Alkoxy;

[0111] Each independently substituted with at least one selected from deuterium, -F, -Cl, -Br, -I, cyano, phenyl and biphenyl C1-C 20 Alkyl and C1-C 20 Alkoxy;

[0112] Cyclopentyl, cyclohexyl, cycloheptyl, cyclopentenyl, cyclohexenyl, phenyl, bicyclopentadienyl, indenyl, naphthyl, azulyl, heptaleneyl, indacenyl, acenaphthylenyl, fluorenyl, spirobifluorenyl, spirocyclopentane-fluorenyl, spirocyclohexane-fluorenyl, spirofluorene-benzofluoreneyl, benzofluoreneyl, dibenzofluoreneyl, phenalenyl, phenanthrenyl, anthracenyl, fluoranthenyl, benzo[9,10]phenanthrenyl, pyrenyl, yl, tetraphenylenyl, picenyl, perylenyl, pentaphenylenyl, hexaphenylenyl, pyrrolyl, imidazolyl, pyrazolyl, pyridyl, pyrazinyl, pyrimidinyl, pyridazinyl, isoindolyl, indolyl, indazolyl, purinyl, quinolinyl, isoquinolinyl, benzoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, carbazolyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzoxazolyl, benzimidazolyl, furyl, benzofuryl, thienyl, benzothienyl, thiazolyl, isothiazolyl, benzothiazolyl, isoxazolyl, oxazolyl, triazolyl, tetrazolyl, oxadiazolyl, triazinyl, isobenzoxazolyl, dibenzofuranyl, dibenzothiophenyl, benzocarbazolyl, dibenzocarbazolyl, and dibenzosilolyl;

[0113] are each independently substituted with deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, nitro, amidino, hydrazino, hydrazono, C1-C 20 alkyl, C1-C 20 alkoxy, cyclopentyl, cyclohexyl, cycloheptyl, cyclopentenyl, cyclohexenyl, phenyl, bicyclopentadienyl, indenyl, naphthyl, azulyl, heptaleneyl, indacenyl, acenaphthylenyl, fluorenyl, spirobifluorenyl, spirocyclopentane-fluorenyl, spirocyclohexane-fluorenyl, spirofluorene-benzofluoreneyl, benzofluoreneyl, dibenzofluoreneyl, phenalenyl, phenanthrenyl, anthracenyl, fluoranthenyl, benzo[9,10]phenanthrenyl, pyrenyl, yl, tetraphenylenyl, picenyl, perylenyl, pentaphenylenyl, hexaphenylenyl, pyrrolyl, imidazolyl, pyrazolyl, pyridyl, pyrazinyl, pyrimidinyl, pyridazinyl, isoindolyl, indolyl, indazolyl, purinyl, quinolinyl, isoquinolinyl, benzoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, carbazolyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzoxazolyl, benzimidazolyl, furyl, benzofuryl, thienyl, benzothienyl, thiazolyl, isothiazolyl, benzothiazolyl, isoxazolyl, oxazolyl, triazolyl, tetrazolyl, oxadiazolyl, triazinyl, isobenzoxazolyl, dibenzofuranyl, dibenzothiophenyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, -Si(Q 31 )(Q 32 )(Q 33 ), -N(Q 31 )(Q 32 ), and -B(Q 31 )(Q 32At least one selected from cyclopentyl, cyclohexyl, cycloheptyl, cyclopentenyl, cyclohexenyl, phenyl, bicyclopentadienyl, indanyl, naphthyl, azulyl, heptaleneyl, indacenyl, acenaphthylenyl, fluorenyl, spirobifluorenyl, spirocyclopentane-fluorenyl, spirocyclohexane-fluorenyl, spirofluorene-benzofluorene, benzofluorene, dibenzofluorene, phenalenyl, phenanthrenyl, anthracenyl, fluoranthenyl, benzo[9,10]phenanthrenyl, pyrenyl, group, tetraphenyl, picenyl, perylenyl, pentaphenyl, hexaphenyl, pyrrolyl, imidazolyl, pyrazolyl, pyridyl, pyrazinyl, pyrimidinyl, pyridazinyl, isoindolyl, indolyl, indazolyl, purinyl, quinolyl, isoquinolyl, benzoquinolyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, carbazolyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzoxazolyl, benzimidazolyl, furyl, benzofuryl, thienyl, benzothienyl, thiazolyl, isothiazolyl, benzothiazolyl, isoxazolyl, oxazolyl, triazolyl, tetrazolyl, oxadiazolyl, triazinyl, isobenzoxazolyl, dibenzofuryl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl and dibenzosilolyl; and

[0114] -Si(Q1)(Q2)(Q3), -N(Q1)(Q2), -B(Q1)(Q2), -C(=O)(Q1), -S(=O)2(Q1) and -P(=O)(Q1)(Q2), and

[0115] Q1 to Q3 and Q 31 to Q 33 can each independently be selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, nitro, amidino, hydrazino, hydrazono, 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 and terphenyl.

[0116] In one or more embodiments, R1 to R 14 in Formula 1 can each independently be selected from:

[0117] hydrogen, deuterium, -F, -Cl, -Br, -I, cyano and C1-C 20 alkyl;

[0118] substituted with at least one selected from deuterium, -F, -Cl, -Br, -I, and cyano, C1-C 20 alkyl;

[0119] groups represented by Formula 5-1 to Formula 5-80; and

[0120] -Si(Q1)(Q2)(Q3), -N(Q1)(Q2), -B(Q1)(Q2), -C(=O)(Q1), -S(=O)2(Q1), and -P(=O)(Q1)(Q2):

[0121]

[0122]

[0123]

[0124] In Formula 5-1 to Formula 5-80,

[0125] Y 31 may be O, S, C(Z 38 )(Z 39 ), N(Z 35 ), or Si(Z 36 )(Z 37 ),

[0126] Z 31 to Z 39 may each independently be selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, nitro, amidino, hydrazino, hydrazono, C1-C 20 alkyl, C1-C 20 alkoxy, cyclopentyl, cyclohexyl, cycloheptyl, cyclopentenyl, cyclohexenyl, phenyl, biphenyl, naphthyl, fluorenyl, spirobifluorenyl, spirofluorene-benzofluorene, benzofluorene, dibenzofluorene, phenalenyl, phenanthryl, anthracenyl, fluoranthenyl, benzo[9,10]phenanthryl, pyridyl, pyrazinyl, pyrimidinyl, quinolinyl, isoquinolinyl, benzoquinolinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, carbazolyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, triazinyl, dibenzofuranyl, dibenzothiophenyl, dibenzosilolyl, -Si(Q 31 )(Q 32 )(Q 33 ), -N(Q 31 )(Q 32 ), and -B(Q 31 )(Q 32 ),

[0127] e2 may be selected from 1 and 2,

[0128] e3 can be an integer from 1 to 3,

[0129] e4 can be an integer from 1 to 4,

[0130] e5 can be an integer from 1 to 5,

[0131] e6 can be an integer from 1 to 6,

[0132] e7 can be an integer from 1 to 7,

[0133] e9 can be an integer from 1 to 9,

[0134] Q 31 to Q 33 can each independently be selected from C1-C 20 alkyl, C1-C 20 alkoxy, phenyl, biphenyl, terphenyl, naphthyl, and pyridyl, and

[0135] * represents the binding position to the adjacent atom.

[0136] In one or more embodiments, R1 to R in Formula 1 14 can each independently be selected from:

[0137] hydrogen, deuterium, -F, -Cl, -Br, -I, cyano, methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl, tert-butyl, pentyl, isopentyl, hexyl, phenyl, biphenyl, terphenyl, naphthyl, and pyridyl; and

[0138] phenyl, biphenyl, terphenyl, naphthyl, and pyridyl each independently substituted with at least one selected from deuterium, -F, -Cl, -Br, -I, methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl, tert-butyl, phenyl, biphenyl, terphenyl, naphthyl, and pyridyl.

[0139] In one embodiment, regarding Formula 1, one of X4 to X 11 can be C(R x ), while the others may not be C(R x ).

[0140] In one or more embodiments, regarding Formula 1, X1 can be C(R1), X2 can be C(R2), X3 can be C(R3), X4 can be C(R4) or C(R x ), X5 can be C(R5) or C(R x ), X6 can be C(R6) or C(R x ), X7 can be C(R7) or C(R x ), X8 can be C(R8) or C(R x), X9 can be C(R9) or C(R x ), X 10 can be C(R 10 ), or C(R x ), X 11 can be C(R 11 ), or C(R x ), X 12 can be C(R 12 ), X 13 can be C(R 13 ), X 14 can be C(R 14 ), and at least one of X4 to X 11 can be C(R x ).

[0141] In one or more embodiments, with respect to Formula 1, X1 can be C(R1), X2 can be C(R2), X3 can be C(R3), X4 can be C(R4) or C(R x ), X5 can be C(R5) or C(R x ), X6 can be C(R6) or C(R x ), X7 can be C(R7) or C(R x ), X8 can be C(R8) or C(R x ), X9 can be C(R9) or C(R x ), X 10 can be C(R 10 ), or C(R x ), X 11 can be C(R 11 ), or C(R x ), X 12 can be C(R 12 ), X 13 can be C(R 13 ), X 14 can be C(R 14 ), X4 to X 11 One of them (e.g., only one) can be C(R x ), while the others among X4 to X 11 may not be C(R x ).

[0142] In one embodiment, the fused-ring compound can be represented by one of Formulas 1-1 to 1-4:

[0143]

[0144] In Formulas 1-1 to 1-4,

[0145] X1 can be N or C(R1), X2 can be N or C(R2), X3 can be N or C(R3), X4 can be N or C(R4), X5 can be N or C(R5), X6 can be N or C(R6), X7 can be N or C(R7), X8 can be N or C(R8), X9 can be N or C(R9), X 10 can be N or C(R 10 ), X 11 can be N or C(R 11 ), X 12 can be N or C(R 12 ), X 13 can be N or C(R 13 ), X 14 can be N or C(R 14 ), and

[0146] L1 to L3, a1 to a3, Ar1, Ar2, b1, b2, and R1 to R 14 can each independently be the same as described above.

[0147] In one or more embodiments, the ring-shrinking compound can be represented by one of Formulas 1-1A to 1-4A:

[0148]

[0149] In Formulas 1-1A to 1-4A,

[0150] L1 to L3, a1 to a3, Ar1, Ar2, b1, b2, and R1 to R 14 can each independently be the same as described above.

[0151] For example, L1 to L3 in Formulas 1-1 to 1-4 and Formulas 1-1A to 1-4A can each independently be selected from the groups represented by Formulas 3-1 to 3-43, but the embodiments of the present disclosure are not limited thereto.

[0152] In one embodiment, -(L1) a1 -, -(L2) a2 -, and -(L3) a3 - in Formulas 1-1 to 1-4 and Formulas 1-1A to 1-4A can each independently be selected from a single bond and the groups represented by Formulas 4-1 to 4-3, but the embodiments of the present disclosure are not limited thereto.

[0153] For example, Ar1 and Ar2 in Formulas 1-1 to 1-4 and Formulas 1-1A to 1-4A can each independently be selected from the groups represented by Formulas 5-1 to 5-80, but the embodiments of the present disclosure are not limited thereto.

[0154] In one embodiment, Ar1 and Ar2 in Formulas 1-1 to 1-4 and Formulas 1-1A to 1-4A may each independently be selected from the groups represented by Formulas 6-1 to 6-40, but the embodiments of the present disclosure are not limited thereto.

[0155] For example, the group represented by *-(L1) a1 -(Ar1) b1 in Formulas 1-1 to 1-4 and Formulas 1-1A to 1-4A and the group represented by *-(L2) a2 -(Ar2) b2 may each independently be selected from the groups represented by Formulas 7-1 to 7-37, but the embodiments of the present disclosure are not limited thereto.

[0156] For example, R1 to R 14 in Formulas 1-1 to 1-4 and Formulas 1-1A to 1-4A may each independently be selected from:

[0157] hydrogen, deuterium, -F, -Cl, -Br, -I, cyano, methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl, tert-butyl, pentyl, isopentyl, hexyl, phenyl, biphenyl, terphenyl, naphthyl, and pyridyl; and

[0158] phenyl, biphenyl, terphenyl, naphthyl, and pyridyl each independently substituted with at least one selected from deuterium, -F, -Cl, -Br, -I, methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl, tert-butyl, phenyl, biphenyl, terphenyl, naphthyl, and pyridyl, but the embodiments of the present disclosure are not limited thereto.

[0159] In one embodiment, the fused-ring compound represented by Formula 1 may be selected from Compounds 1 to 225, but the embodiments of the present disclosure are not limited thereto:

[0160]

[0161]

[0162]

[0163]

[0164]

[0165]

[0166]

[0167]

[0168]

[0169]

[0170] The condensed-ring compound represented by Formula 1 has a planar structure (conformation) because it includes a structure in which the carbons at the 8- and 8'-positions of the spirobifluorene moiety therein are connected by a single bond. Accordingly, the condensed-ring compound can have properties suitable for hole transport, thereby increasing the hole mobility and improving the thermal stability. Accordingly, an organic light-emitting device including the condensed-ring compound can have improved heat resistance and a longer lifespan.

[0171] In addition, because the condensed-ring compound represented by Formula 1 includes at least one group represented by Formula 2, the non-bonding electron pair present at the nitrogen atom of the amine can provide excellent hole transport and injection properties. For example, when the condensed-ring compound represented by Formula 1 includes a single group represented by Formula 2, an organic light-emitting device including the condensed-ring compound in a hole transport region can have a highest occupied molecular orbital (HOMO) energy level suitable for hole transport and injection. Accordingly, the driving voltage of the organic light-emitting device can be reduced and its current efficiency can be improved.

[0172] Accordingly, an electronic device (e.g., an organic light-emitting device) including the condensed-ring compound can have a low driving voltage, high efficiency, and / or a long lifespan.

[0173] The method for synthesizing the condensed-ring compound represented by Formula 1 will be apparent to those of ordinary skill in the art by referring to the following examples.

[0174] At least one of the condensed-ring compounds represented by Formula 1 can be used between a pair of electrodes of an organic light-emitting device. For example, the condensed-ring compound can be included in at least one layer selected from a hole transport region, an electron transport region, and an emission layer.

[0175] In one or more embodiments, the condensed-ring compound of Formula 1 can be used as a material for a cover layer located outside a pair of electrodes of an organic light-emitting device.

[0176] One or more example embodiments of the present disclosure provide an organic light-emitting device including: 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. The organic light-emitting device includes at least one condensed-ring compound represented by Formula 1.

[0177] In one embodiment, the organic layer of the organic light-emitting device can include at least one condensed-ring compound represented by Formula 1.

[0178] As used herein, the expression “(organic layer) includes at least one condensed-ring compound” may include cases where “(organic layer) includes the same condensed-ring compound represented by Formula 1” and cases where “(organic layer) includes two or more different condensed-ring compounds represented by Formula 1”.

[0179] In some embodiments, for example, the organic layer may include only Compound 1 (e.g., a single compound) as the condensed-ring compound. In this regard, Compound 1 may be present (e.g., included) only in the emission layer of the organic light-emitting device. In one or more embodiments, the organic layer may include Compound 1 and Compound 2 (e.g., two different compounds) as the condensed-ring compounds. In this regard, Compound 1 and Compound 2 may be present in the same (identical) layer (e.g., Compound 1 and Compound 2 may both be present in the emission layer), or in different layers (e.g., Compound 1 may be present in the emission layer, while Compound 2 may be present in the hole transport layer).

[0180] In one embodiment, the first electrode may be an anode, the second electrode may be a cathode, the organic layer 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, the hole transport region may include a hole injection layer, a hole transport layer, an emission assisting layer, an electron blocking layer, or any combination thereof, and the electron transport region may include a buffer layer, a hole blocking layer, an electron control layer, an electron transport layer, an electron injection layer, or any combination thereof.

[0181] In one embodiment, the organic layer may include a hole transport region that may contain a condensed-ring compound.

[0182] In one or more embodiments, the hole transport region of the organic light-emitting device may include at least one of a hole injection layer and a hole transport layer, wherein at least one of the hole injection layer and the hole transport layer may include a condensed-ring compound represented by Formula 1.

[0183] In one or more embodiments, the hole transport region of the organic light-emitting device may include a hole transport layer that may contain a condensed-ring compound.

[0184] In one embodiment, the hole transport region of the organic light-emitting device may further include a p-dopant having a lowest unoccupied molecular orbital (LUMO) energy level of about -3.5 eV or less.

[0185] For example, the p-dopant may include at least one selected from quinone derivatives, metal oxides, and cyano-containing compounds.

[0186] For example, the hole transport region may include a hole transport layer containing a p-dopant, or the hole transport region may include a hole injection layer containing a p-dopant.

[0187] In one embodiment, the emissive layer may include a host and a dopant. In this case, the amount of the host may be greater than the amount of the dopant. For example, the dopant may be or include an arylamine compound or a styrylamine compound, but embodiments of the present disclosure are not limited thereto.

[0188] In one or more embodiments, the emissive layer may include a condensed ring compound.

[0189] In some embodiments, for example, the emissive layer may further include a dopant, and the condensed ring compound may act as (e.g., be) a host. In this case, the amount of the condensed ring compound may be greater than the amount of the dopant.

[0190] In one or more embodiments, the organic light-emitting device may further include at least one of a first capping layer located under the first electrode and facing the second electrode and a second capping layer located on the second electrode and facing the first electrode, wherein at least one selected from the first capping layer and the second capping layer may include a condensed ring compound.

[0191] In some embodiments, for example, the organic light-emitting device may further include a first capping layer that may contain a condensed ring compound. In this case, light generated in the organic light-emitting device may be emitted in the direction of (e.g., through) the first capping layer. Here, the first electrode may be a transmissive electrode or a semi-transmissive electrode, and the second electrode may be a reflective electrode. However, embodiments of the present disclosure are not limited thereto.

[0192] In one embodiment, the organic light-emitting device may further include a second capping layer that may contain a condensed ring compound. In this case, light generated in the organic light-emitting device may be emitted in the direction of (e.g., through) the second capping layer. Here, the second electrode may be a transmissive electrode or a semi-transmissive electrode, and the first electrode may be a reflective electrode. However, embodiments of the present disclosure are not limited thereto.

[0193] In one embodiment, the organic light-emitting device may further include a first capping layer and a second capping layer, wherein at least one of the first capping layer and the second capping layer may include a condensed ring compound. In this case, light generated in the organic light-emitting device may be emitted in both the direction of (e.g., through) the first capping layer and the direction of (e.g., through) the second capping layer. Here, the first electrode and the second electrode may both (e.g., simultaneously) be transmissive electrodes or semi-transmissive electrodes, but embodiments of the present disclosure are not limited thereto.

[0194] As used herein, the term "organic layer" may refer to a single layer and / or multiple layers disposed between a first electrode and a second electrode of an organic light-emitting device. The materials included in the "organic layer" are not limited to organic materials.

[0195] Figure 1 description

[0196] 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.

[0197] Hereinafter, the structure of the organic light-emitting device 10 according to an embodiment and a method of manufacturing the organic light-emitting device 10 will be described in conjunction with Figure 1 description.

[0198] First electrode 110

[0199] In Figure 1 , a substrate may be additionally provided below the first electrode 110 or above the second electrode 190. The substrate may be a glass substrate and / or a plastic substrate that each have excellent mechanical strength, thermal stability, transparency, surface flatness, processability, and / or water resistance.

[0200] The first electrode 110 may be formed by depositing and / or sputtering a material for forming the first electrode 110 on the 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.

[0201] The first electrode 110 may be a reflective electrode, a semi-transmissive electrode, or a transmissive electrode. When the first electrode 110 is a transmissive electrode, the material for forming the first electrode 110 may be selected from indium tin oxide (ITO), indium zinc oxide (IZO), tin oxide (SnO2), zinc oxide (ZnO), and combinations 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-transmissive electrode or a reflective electrode, the material for forming 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 combinations thereof, but the embodiments of the present disclosure are not limited thereto.

[0202] 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.

[0203] Organic layer 150

[0204] The organic layer 150 is disposed on the first electrode 110. The organic layer 150 may include an emission layer.

[0205] 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.

[0206] The hole transport region in the organic layer 150

[0207] The hole transport region may have: i) a single-layer structure including a single layer containing a single material; ii) a single-layer structure including a single layer containing a plurality of different materials; or iii) a multi-layer structure having a plurality of layers including a plurality of different materials.

[0208] The hole transport region may include at least one layer selected from a hole injection layer, a hole transport layer, an emission assisting layer, and an electron blocking layer.

[0209] For example, the hole transport region may have a single-layer structure or a multi-layer structure. The single-layer structure includes a single layer containing a plurality of different materials. The multi-layer structure has a hole injection layer / hole transport layer structure, a hole injection layer / hole transport layer / emission assisting layer structure, a hole injection layer / emission assisting layer structure, a hole transport layer / emission assisting layer structure, or a hole injection layer / hole transport layer / electron blocking layer structure. In this case, the constituent layers of each structure are sequentially stacked in the stated order from the first electrode 110, but the structure of the hole transport region is not limited thereto.

[0210] The hole transport region may include a condensed ring compound represented by Formula 1.

[0211] In one embodiment, in addition to the condensed ring compound represented by Formula 1, the hole transport region may include at least one selected from m-MTDATA, TDATA, 2-TNATA, NPB (NPD), β-NPB, TPD, spiro-TPD, spiro-NPB, methylated NPB, TAPC, HMTPD, 4,4',4''-tris(N-carbazolyl)triphenylamine (TCTA), polyaniline / dodecylbenzenesulfonic acid (PANI / DBSA), poly(3,4-ethylenedioxythiophene) / poly(4-styrenesulfonate) (PEDOT / PSS), polyaniline / camphorsulfonic acid (PANI / CSA), polyaniline / poly(4-styrenesulfonate) (PANI / PSS), a compound represented by Formula 201, and a compound represented by Formula 202:

[0212]

[0213]

[0214] Formula 201

[0215]

[0216] Formula 202

[0217]

[0218] In Formula 201 and Formula 202,

[0219] L 201 to L 204 can each independently be selected from substituted or unsubstituted C3-C 10 subcycloalkyl, substituted or unsubstituted C1-C 10 subheterocycloalkyl, substituted or unsubstituted C3-C 10 subcycloalkenyl, substituted or unsubstituted C1-C 10 subheterocycloalkenyl, substituted or unsubstituted C6-C 60 subaryl, substituted or unsubstituted C1-C 60 subheteroaryl, substituted or unsubstituted divalent non-aromatic fused polycyclic group and substituted or unsubstituted divalent non-aromatic fused heteropolycyclic group,

[0220] L 205 can be selected from *-O-*', *-S-*', *-N(Q 201 )-*', substituted or unsubstituted C1-C 20 subalkyl, substituted or unsubstituted C2-C 20 subalkenyl, substituted or unsubstituted C3-C 10 subcycloalkyl, substituted or unsubstituted C1-C 10 subheterocycloalkyl, substituted or unsubstituted C3-C 10 subcycloalkenyl, substituted or unsubstituted C1-C 10 subheterocycloalkenyl, substituted or unsubstituted C6-C 60 subaryl, substituted or unsubstituted C1-C 60 subheteroaryl, substituted or unsubstituted divalent non-aromatic fused polycyclic group and substituted or unsubstituted divalent non-aromatic fused heteropolycyclic group,

[0221] xa1 to xa4 can each independently be an integer from 0 to 3,

[0222] xa5 can be an integer from 1 to 10, and

[0223] R 201 to R 204 and Q 201 can each independently be selected from substituted or unsubstituted C3-C 10 cycloalkyl, substituted or unsubstituted C1-C 10Heterocycloalkyl, 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 fused polycyclic group and substituted or unsubstituted monovalent non-aromatic fused heteropolycyclic group.

[0224] In one embodiment, R 201 and R 202 in Formula 202 may optionally be connected to each other via a single bond, dimethyl-methylene or diphenyl-methylene, and R 203 and R 204 may optionally be connected to each other via a single bond, dimethyl-methylene or diphenyl-methylene.

[0225] In one or more embodiments, in Formula 201 and Formula 202,

[0226] L 201 to L 205 may each independently be selected from:

[0227] Phenylene, s-indacenylene, indenylene, naphthylene, azulylene, heptalenylene, indacenylene, acenaphthylene, fluorenylene, spirobifluorenylene, benzo[b]fluorenylene, dibenzo[b,d]fluorenylene, phenalenylene, phenanthrenylene, anthracenylene, fluoranthenylene, benzo[9,10]phenanthrenylene, pyrenylene, -yl, tetracenylene, picenylene, perylenylene, pentaphenylene, hexacenylene, pentacenylene, rubicenylene, coronenylene, ovalenylene, thienylene, furanylene, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothienyl, dibenzofuranyl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl and pyridinyl; and

[0228] each independently substituted with deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, nitro, amidino, hydrazino, hydrazono, C1-C 20 alkyl, C1-C 20 alkoxy, cyclopentyl, cyclohexyl, cycloheptyl, cyclopentenyl, cyclohexenyl, phenyl, biphenyl, terphenyl, substituted with C1-C 10Phenyl of an alkyl group, phenyl substituted with -F, cyclopentadienyl, indenyl, naphthyl, azulyl, heptalene, indacene, acenaphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenalenyl, phenanthrenyl, anthracenyl, fluoranthenyl, benzo[9,10]phenanthrenyl, pyrenyl, group, tetraphenyl, picene, perylene, pentaphene, hexaphenyl, pentacene, rubicene, coronene, ovalene, thienyl, furyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothienyl, dibenzofuranyl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, pyridyl, -Si(Q 31 )(Q 32 )(Q 33 ) and -N(Q 31 )(Q 32 ), at least one selected from phenylenes, cyclopentadienylenes, indenylenes, naphthylenes, azulylenes, heptalenylenes, indacenylenes, acenaphthylenylenes, fluorenylenes, spirobifluorenylenes, benzofluorenylenes, dibenzofluorenylenes, phenalenylenes, phenanthrenylenes, anthracenylenes, fluoranthenylenes, benzo[9,10]phenanthrenylenes, pyrenylenes, group, tetraphenylenes, picenylenes, perylenylenes, pentaphenylenes, hexaphenylenes, pentacenylenes, rubicenylenes, coronenylenes, ovalenylenes, thienylenes, furylenes, carbazolylenes, indolylenes, isoindolylenes, benzofuranylenes, benzothienylenes, dibenzofuranylenes, dibenzothienylenes, benzocarbazolylenes, dibenzocarbazolylenes, dibenzosilolylenes and pyridylenes, and

[0229] Q 31 to Q 33 can each independently be selected from C1-C 10 alkyl, C1-C 10 alkoxy, phenyl, biphenyl, terphenyl and naphthyl.

[0230] In one or more embodiments, xa1 to xa4 can each independently be 0, 1 or 2.

[0231] In one or more embodiments, xa5 can be 1, 2, 3 or 4.

[0232] In one or more embodiments, R 201 to R 204 and Q 201 can each independently be selected from:

[0233] phenyl, biphenyl, terphenyl, cyclopentadienyl, indenyl, naphthyl, azulyl, heptalene, indacene, acenaphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenalenyl, phenanthrenyl, anthracenyl, fluoranthenyl, benzo[9,10]phenanthrenyl, pyrenyl, a base, a tetracenyl group, a picenyl group, a perylenyl group, a pentaphenyl group, a hexaphenyl group, a quaterrylenyl group, a coronenyl group, an ovalene group, a thiophenyl group, a furyl group, a carbazolyl group, an indolyl group, an isoindolyl group, a benzofuryl group, a benzothiophenyl group, a dibenzofuryl group, a dibenzothiophenyl group, a benzocarbazolyl group, a dibenzocarbazolyl group, a dibenzosilolyl group, and a pyridyl group; and

[0234] each is independently substituted with at least one selected from deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, a C1-C 20 alkyl group, a C1-C 20 alkoxy group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclopentenyl group, a cyclohexenyl group, a phenyl group, a biphenyl group, a terphenyl group, a phenyl group substituted with a C1-C 10 alkyl group, a phenyl group substituted with -F, a cyclopentadienyl group, an indenyl group, a naphthyl group, an azulene group, a heptalene group, an indacenyl group, an acenaphthyl group, a fluorenyl group, a spirobifluorenyl group, a benzofluorenyl group, a dibenzofluorenyl group, a phenalenyl group, a phenanthryl group, an anthracenyl group, a fluoranthenyl group, a benzo[9,10]phenanthryl group, a pyrenyl group, a tetracenyl group, a picenyl group, a perylenyl group, a pentaphenyl group, a hexaphenyl group, a quaterrylenyl group, a coronenyl group, an ovalene group, a thiophenyl group, a furyl group, a carbazolyl group, an indolyl group, an isoindolyl group, a benzofuryl group, a benzothiophenyl group, a dibenzofuryl group, a dibenzothiophenyl group, a benzocarbazolyl group, a dibenzocarbazolyl group, a dibenzosilolyl group, a pyridyl group, -Si(Q 31 )(Q 32 )(Q 33 ) and -N(Q 31 )(Q 32 ), and the phenyl group, biphenyl group, terphenyl group, cyclopentadienyl group, indenyl group, naphthyl group, azulene group, heptalene group, indacenyl group, acenaphthyl group, fluorenyl group, spirobifluorenyl group, benzofluorenyl group, dibenzofluorenyl group, phenalenyl group, phenanthryl group, anthracenyl group, fluoranthenyl group, benzo[9,10]phenanthryl group, pyrenyl group a tetracenyl group, a picenyl group, a perylenyl group, a pentaphenyl group, a hexaphenyl group, a quaterrylenyl group, a coronenyl group, an ovalene group, a thiophenyl group, a furyl group, a carbazolyl group, an indolyl group, an isoindolyl group, a benzofuryl group, a benzothiophenyl group, a dibenzofuryl group, a dibenzothiophenyl group, a benzocarbazolyl group, a dibenzocarbazolyl group, a dibenzosilolyl group, and a pyridyl group, and

[0235] Q 31 to Q 33 may each independently be the same as those described above.

[0236] In one or more embodiments, at least one selected from R 201 to R 203 in Formula 201 may each independently be selected from:

[0237] Fluorenyl, spirobifluorenyl, carbazolyl, dibenzofuranyl and dibenzothiophenyl; and

[0238] are each independently substituted with at least one selected from deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazino, hydrazono, C1-C 20 alkyl, C1-C 20 alkoxy, cyclopentyl, cyclohexyl, cycloheptyl, cyclopentenyl, cyclohexenyl, phenyl, biphenyl, terphenyl, phenyl substituted with C1-C 10 alkyl, phenyl substituted with -F, naphthyl, fluorenyl, spirobifluorenyl, carbazolyl, dibenzofuranyl and dibenzothiophenyl substituted with at least one selected from fluorenyl, spirobifluorenyl, carbazolyl, dibenzofuranyl and dibenzothiophenyl,

[0239] However, the embodiments of the present disclosure are not limited thereto.

[0240] In one or more embodiments, in Formula 202, i) R 201 and R 202 can be connected to each other via a single bond, and / or ii) R 203 and R 204 can be connected to each other via a single bond.

[0241] In one or more embodiments, R 201 to R 204 in Formula 202 can each independently be selected from:

[0242] carbazolyl; and

[0243] substituted with at least one selected from deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazino, hydrazono, C1-C 20 alkyl, C1-C 20 alkoxy, cyclopentyl, cyclohexyl, cycloheptyl, cyclopentenyl, cyclohexenyl, phenyl, biphenyl, terphenyl, phenyl substituted with C1-C 10 alkyl, phenyl substituted with -F, naphthyl, fluorenyl, spirobifluorenyl, carbazolyl, dibenzofuranyl and dibenzothiophenyl substituted with at least one selected from fluorenyl, spirobifluorenyl, carbazolyl, dibenzofuranyl and dibenzothiophenyl,

[0244] However, the embodiments of the present disclosure are not limited thereto.

[0245] In one embodiment, the compound represented by Formula 201 can be represented by Formula 201-1:

[0246] Formula 201-1

[0247]

[0248] In one or more embodiments, the compound represented by Formula 201 may be represented by Formula 201-2, but the embodiments of the present disclosure are not limited thereto:

[0249] Formula 201-2

[0250]

[0251] In one or more embodiments, the compound represented by Formula 201 may be represented by Formula 201-2(1), but the embodiments of the present disclosure are not limited thereto:

[0252] Formula 201-2(1)

[0253]

[0254] In one or more embodiments, the compound represented by Formula 201 may be represented by Formula 201A:

[0255] Formula 201A

[0256]

[0257] In one or more embodiments, the compound represented by Formula 201 may be represented by Formula 201A(1), but the embodiments of the present disclosure are not limited thereto:

[0258] Formula 201A(1)

[0259]

[0260] In one or more embodiments, the compound represented by Formula 201 may be represented by Formula 201A-1, but the embodiments of the present disclosure are not limited thereto:

[0261] Formula 201A-1

[0262]

[0263] In one embodiment, the compound represented by Formula 202 may be represented by Formula 202-1:

[0264] Formula 202-1

[0265]

[0266] In one or more embodiments, the compound represented by Formula 202 may be represented by Formula 202-1(1):

[0267] Formula 202-1(1)

[0268]

[0269] In one or more embodiments, the compound represented by Formula 202 may be represented by Formula 202A:

[0270] Formula 202A

[0271]

[0272] In one or more embodiments, the compound represented by Formula 202 may be represented by Formula 202A-1:

[0273] Formula 202A-1

[0274]

[0275] In Formulas 201-1, 201-2, 201-2(1), 201A, 201A(1), 201A-1, 202-1, 202-1(1), 202A and 202A-1,

[0276] L 201 to L 203 , xa1 to xa3, xa5 and R 202 to R 204 may each independently be the same as described above,

[0277] L 205 may be selected from phenylene and fluoreneylene,

[0278] X 211 may be selected from O, S and N(R 211 ),

[0279] X 212 may be selected from O, S and N(R 212 ),

[0280] R 211 and R 212 may each independently be the same as R 203 and

[0281] R 213 to R 217 may each independently be selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, nitro, amidino, hydrazino, hydrazono, C1-C 20 alkyl, C1-C 20 alkoxy, cyclopentyl, cyclohexyl, cycloheptyl, cyclopentenyl, cyclohexenyl, phenyl, biphenyl, terphenyl, substituted with C1-C 10Phenyl of an alkyl group, phenyl substituted with -F, cyclopentadienyl, indenyl, naphthyl, azulene, heptalene, indacenyl, acenaphthylenyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenalenyl, phenanthrenyl, anthracenyl, fluoranthenyl, benzo[9,10]phenanthrenyl, pyrenyl, Base, tetraphenyl, picene, perylene, pentaphene, hexaphenyl, pentacene, rubicene, corannulenyl, thiophenyl, furyl, carbazolyl, indolyl, isoindolyl, benzofuryl, benzothiophenyl, dibenzofuryl, dibenzothiophenyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, and pyridyl.

[0282] The hole transport region may include at least one compound selected from compounds HT1 to HT48, but embodiments of the present disclosure are not limited thereto:

[0283]

[0284]

[0285]

[0286]

[0287] The thickness of the hole transport region may be about to about For example, about 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 (For example, about to about ), and the thickness of the hole transport layer may be about to about (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, satisfactory hole transport characteristics can be obtained without significantly increasing the driving voltage.

[0288] The emission assisting layer can improve the light emitting efficiency of the organic light emitting device by compensating for the optical resonance distance according to the wavelength of the light emitted from the emission layer, and the electron blocking layer can block or reduce the flow of electrons from the electron transport region. The emission assisting layer and the electron blocking layer may include the same materials as those described above.

[0289] p-dopant

[0290] In addition to these materials, the hole transport region may further include a charge generation material for improving conductivity. The charge generation material may be uniformly or non-uniformly dispersed in the hole transport region.

[0291] The charge generation material may be, for example, a p-dopant.

[0292] In one embodiment, the dopant may have a LUMO energy level of about -3.5 eV or less.

[0293] The p-dopant may include at least one selected from quinone derivatives, metal oxides, and cyanide-containing compounds, but the embodiments of the present disclosure are not limited thereto.

[0294] In one embodiment, the p-dopant may include at least one selected from the following compounds:

[0295] Quinone derivatives (such as tetracyanoquinodimethane (TCNQ) and / or 2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane (F4-TCNQ));

[0296] Metal oxides (such as tungsten oxide and / or molybdenum oxide);

[0297] 1,4,5,8,9,12-hexaazatriphenylene-hexacarbonitrile (HAT-CN); and

[0298] A compound represented by Formula 221,

[0299] but the embodiments of the present disclosure are not limited thereto:

[0300]

[0301] Formula 221

[0302]

[0303] In Formula 221,

[0304] R 221 to R 223 may each independently be selected from 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 C1-C 60 heteroaryl, substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, and substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group, wherein from R 221 to R223 At least one selected from may have a cyano group, -F, -Cl, -Br, -I, C1-C substituted with -F 20 alkyl, C1-C substituted with -Cl 20 alkyl, C1-C substituted with -Br 20 alkyl and C1-C substituted with -I 20 alkyl.

[0305] The emission layer in the organic layer 150

[0306] 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, or a blue emission layer according to sub-pixels. In one or more embodiments, the emission layer may have a stacked structure of two or more layers selected from a red emission layer, a green emission layer, and a blue emission layer, wherein the two or more layers may be in contact with each other or may be separated from each other. In one or more embodiments, the emission layer may include two or more materials selected from a red light-emitting material, a green light-emitting material, and a blue light-emitting material, wherein the two or more materials are mixed with each other in a single layer to emit white light.

[0307] The emission layer may include a host and a light-emitting material. The light-emitting material may include at least one selected from a phosphorescent dopant, a fluorescent dopant, and a quantum dot.

[0308] Based on 100 parts by weight of the host, the amount of the dopant in the emission layer may be from about 0.01 part by weight to about 15 parts by weight, but the embodiments of the present disclosure are not limited thereto.

[0309] The thickness of the emission layer may be about to about (e.g., about to about ). When the thickness of the emission layer is within this range, excellent light-emitting characteristics can be obtained without significantly increasing the driving voltage.

[0310] The host in the emission layer

[0311] In one or more embodiments, the host may include a compound represented by Formula 301:

[0312] Formula 301

[0313] [Ar 301 xb11 -[(L 301 ) xb1 -R 301 xb21 .

[0314] ​​In Formula 301,

[0315] Ar 301 may be a substituted or unsubstituted C5-C 60 carbocyclic group or a substituted or unsubstituted C1-C 60 heterocyclic group,

[0316] xb11 may be 0, 1, 2 or 3,

[0317] L 301 may be selected from substituted or unsubstituted C3-C 10 cycloalkanediyl, substituted or unsubstituted C1-C 10 heterocycloalkanediyl, substituted or unsubstituted C3-C 10 cycloalkenediyl, substituted or unsubstituted C1-C 10 heterocycloalkenediyl, substituted or unsubstituted C6-C 60 arylene, substituted or unsubstituted C1-C 60 heteroarylene, substituted or unsubstituted divalent non-aromatic condensed polycyclic group and substituted or unsubstituted divalent non-aromatic condensed heteropolycyclic group,

[0318] xb1 may be an integer from 0 to 5,

[0319] R 301 may be selected from deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, nitro, amidino, hydrazino, hydrazono, 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(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 ),

[0320] xb21 can be an integer from 1 to 5, and

[0321] Q 301 To Q 303 Can be independently selected from C1-C 10 Alkyl, C1-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.

[0322] In one embodiment, Ar in Formula 301 301 Can be selected from:

[0323] naphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthrenyl, phenanthrenyl, anthracenyl, fluoranthenyl, benzo[9,10]phenanthrenyl, pyrenyl, phenyl, naphthacene, peryl, perylenyl, pentaphenyl, indenoanthryl, dibenzofuranyl, and dibenzothiophenyl; and

[0324] are independently substituted with deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C1-C 20 Alkyl, C1-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 ) 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

[0325] Q 31 To Q 33 Can be independently selected from C1-C 10 Alkyl, C1-C10 Alkoxy, phenyl, biphenyl, terphenyl, and naphthyl, but the embodiments of the present disclosure are not limited thereto.

[0326] When xb11 in Formula 301 is 2 or greater, two or more Ars 301 can be connected via a single bond.

[0327] In one or more embodiments, the compound represented by Formula 301 can be represented by Formula 301-1 or Formula 301-2:

[0328] Formula 301-1

[0329]

[0330] Formula 301-2

[0331]

[0332] In Formula 301-1 and Formula 301-2,

[0333] A 301 to A 304 can each independently be selected from benzene, naphthalene, phenanthrene, fluoranthene, benzo[9,10]phenanthrene, pyrene, pyridine, pyrimidine, indene, fluorene, spirobifluorene, benzofluorene, dibenzofluorene, indole, carbazole, benzocarbazole, dibenzocarbazole, furan, benzofuran, dibenzofuran, naphthofuran, benzonaphthofuran, dinaphthofuran, thiophene, benzothiophene, dibenzothiophene, naphthothiophene, benzonaphthothiophene, and dinaphthothiophene,

[0334] X 301 can be O, S, or N-[(L 304 ) xb4 -R 304 ,

[0335] R 311 to R 314 can each independently be selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, nitro, amidino, hydrazino, hydrazono, C1-C 20 alkyl, C1-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)(Q31 )(Q 32 ),

[0336] xb22 and xb23 can each independently be 0, 1, or 2,

[0337] L 301 , xb1, R 301 and Q 31 to Q 33 can each independently be the same as described above,

[0338] L 302 to L 304 can each independently be the same as L 301 same,

[0339] xb2 to xb4 can each independently be the same as xb1, and

[0340] R 302 to R 304 can each independently be the same as R 301 same.

[0341] For example, L in Formula 301, Formula 301-1, and Formula 301-2 301 to L 304 can each independently be selected from:

[0342] Phenylene, naphthylene, fluorenylene, spirobifluorenylene, benzo[9,10]phenanthrylene, dibenzo[9,10]phenanthrylene, phenanthrylene, anthrylene, fluoranthenylene, benzo[9,10]phenanthrylene, pyrenylene, yl, perylenylene, pentaphenylene, hexacenylene, pentacenylene, thienylene, furanylene, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothienyl, dibenzofuranyl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, pyridinyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, thiadiazolyl, oxadiazolyl, pyrazinyl, pyrimidinyl, pyridazinyl, triazinyl, quinolinyl, isoquinolinyl, benzoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, isobenzothiazolyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, imidazopyridinyl, imidazopyrimidinyl, and azacarbazolyl; and

[0343] each independently substituted with deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazino, hydrazono, C1-C 20 alkyl, C1-C 20Alkoxy, phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthryl, anthryl, fluoranthenyl, benzo[9,10]phenanthryl, pyrenyl, yl, perylenyl, pentaphenyl, hexaphenyl, pentacenyl, thiophenyl, furyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothiophenyl, dibenzofuranyl, dibenzothiophenyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, pyridyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, thiadiazolyl, oxadiazolyl, pyrazinyl, pyrimidinyl, pyridazinyl, triazinyl, quinolinyl, isoquinolinyl, benzoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, isobenzothiazolyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, imidazopyridinyl, imidazopyrimidinyl, 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 ), at least one selected from phenylene, naphthylene, fluorenylene, spirobifluorenylene, benzofluorenylene, dibenzofluorenylene, phenanthrylene, anthrylene, fluoranthenylene, benzo[9,10]phenanthrylene, pyrenylene, yl, perylenylene, pentaphenylene, hexaphenylene, thiophenylene, furylene, carbazolylene, indolylene, isoindolylene, benzofuranylene, benzothiophenylene, dibenzofuranylene, dibenzothiophenylene, benzocarbazolylene, dibenzocarbazolylene, dibenzosilolylene, pyridinylene, imidazolylene, pyrazolylene, thiazolylene, isothiazolylene, oxazolylene, isoxazolylene, thiadiazolylene, oxadiazolylene, pyrazinylene, pyrimidinylene, pyridazinylene, triazinylene, quinolinylene, isoquinolinylene, benzoquinolinylene, phthalazinylene, naphthyridinylene, quinoxalinylene, quinazolinylene, cinnolinylene, phenanthridinylene, acridinylene, phenanthrolinylene, phenazinylene, benzimidazolylene, isobenzothiazolylene, benzoxazolylene, isobenzoxazolylene, triazolylene, tetrazolylene, imidazopyridinylene, imidazopyrimidinylene, and azacarbazolylene, and

[0344] Q 31 to Q 33 are each independently the same as those described above.

[0345] In one embodiment, R in Formula 301, Formula 301-1 and Formula 301-2 301 to R 304 may each independently be selected from:

[0346] phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthrenyl, anthracenyl, fluoranthenyl, benzo[9,10]phenanthrenyl, pyrenyl, perylenyl, pentaphenyl, hexaphenyl, pentacenyl, thiophenyl, furanyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothiophenyl, dibenzofuranyl, dibenzothiophenyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, pyridyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, thiadiazolyl, oxadiazolyl, pyrazinyl, pyrimidinyl, pyridazinyl, triazinyl, quinolinyl, isoquinolinyl, benzoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, isobenzothiazolyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, imidazopyridinyl, imidazopyrimidinyl, and azacarbazolyl; and

[0347] each independently substituted with deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, nitro, amidino, hydrazino, hydrazono, C1-C 20 alkyl, C1-C 20 alkoxy, phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthrenyl, anthracenyl, fluoranthenyl, benzo[9,10]phenanthrenyl, pyrenyl, perylenyl, pentaphenyl, hexaphenyl, pentacenyl, thiophenyl, furanyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothiophenyl, dibenzofuranyl, dibenzothiophenyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, pyridyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, thiadiazolyl, oxadiazolyl, pyrazinyl, pyrimidinyl, pyridazinyl, triazinyl, quinolinyl, isoquinolinyl, benzoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, isobenzothiazolyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, imidazopyridinyl, imidazopyrimidinyl, 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 ) at least one selected from phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthryl, anthryl, fluoranthenyl, benzo[9,10]phenanthryl, pyrenyl, yl, perylenyl, pentaphenyl, hexaphenyl, pentacenyl, thiophenyl, furyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothiophenyl, dibenzofuranyl, dibenzothiophenyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, pyridyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, thiadiazolyl, oxadiazolyl, pyrazinyl, pyrimidinyl, pyridazinyl, triazinyl, quinolinyl, isoquinolinyl, benzoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, isobenzothiazolyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, imidazopyridinyl, imidazopyrimidinyl and azacarbazolyl, and

[0348] Q 31 to Q 33 are each independently the same as described above.

[0349] In one or more embodiments, the host may include an alkaline earth metal complex. For example, the host may be selected from Be complexes (e.g., compound H55) and Mg complexes. In some embodiments, the host may be a Zn complex.

[0350] The host may include at least one selected from 9,10 - bis(2 - naphthyl)anthracene (ADN), 2 - methyl - 9,10 - bis(naphthalen - 2 - yl)anthracene (MADN), 9,10 - bis(2 - naphthyl)-2 - tert - butyl - anthracene (TBADN), 4,4′ - bis(N - carbazolyl)-1,1′ - biphenyl (CBP), 1,3 - bis - 9 - carbazolylbenzene (mCP), 1,3,5 - tris(carbazol - 9 - yl)benzene (TCP) and compounds H1 to H55, but the embodiments of the present disclosure are not limited thereto:

[0351]

[0352]

[0353]

[0354] The phosphorescent dopant included in the emission layer in the organic layer 150

[0355] The phosphorescent dopant may include an organometallic complex represented by Formula 401:

[0356] Formula 401

[0357] M(L 401 ) xc1 (L 402 ) xc2 ,

[0358] Formula 402

[0359]

[0360] In Formula 401 and Formula 402,

[0361] M can 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),

[0362] L 401 can be selected from the ligands represented by Formula 402, xc1 can be 1, 2, or 3, where when xc1 is 2 or greater, two or more L 401 can be the same as or different from each other,

[0363] L 402 can be an organic ligand, xc2 can be an integer from 0 to 4, where when xc2 is 2 or greater, two or more L 402 can be the same as or different from each other,

[0364] X 401 to X 404 can all independently be nitrogen or carbon,

[0365] X 401 and X 403 can be connected via a single bond or a double bond, X 402 and X 404 can be connected to each other via a single bond or a double bond,

[0366] A 401 and A 402 can all independently be a C5-C 60 carbocyclic group or a C1-C 60 heterocyclic group,

[0367] X 405 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 hydrogen, deuterium, C1-C 20 alkyl, C1-C 20 alkoxy, phenyl, biphenyl, terphenyl or naphthyl,

[0368] X 406 can be a single bond, O or S,

[0369] R 401 and R 402 can each independently be selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, nitro, amidino, hydrazino, hydrazono, substituted or unsubstituted C1-C 20 alkyl, substituted or unsubstituted C1-C 20 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(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 each independently be selected from C1-C 10 alkyl, C1-C 10 alkoxy, C6-C 20 aryl and C1-C 20 heteroaryl,

[0370] xc11 and xc12 can each independently be an integer from 0 to 10, and

[0371] Both * and *' in Formula 402 represent binding sites to M in Formula 401.

[0372] In one embodiment, A in Formula 402 401 and A 402 can each independently be selected from benzene, naphthalene, fluorene, spirobifluorene, indene, pyrrole, thiophene, furan, imidazole, pyrazole, thiazole, isothiazole, oxazole, isoxazole, pyridine, pyrazine, pyrimidine, pyridazine, quinoline, isoquinoline, benzoquinoline, quinoxaline, quinazoline, carbazole, benzimidazole, benzofuran, benzothiophene, isobenzothiophene, benzoxazole, isobenzoxazole, triazole, tetrazole, oxadiazole, triazine, dibenzofuran, and dibenzothiophene.

[0373] In one or more embodiments, in Formula 402, i) X 401 can be nitrogen, X 402 can be carbon, or ii) X 401 and X 402 can both be nitrogen simultaneously.

[0374] In one or more embodiments, R in Formula 402 401 and R 402 can each independently be selected from:

[0375] hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, nitro, amidino, hydrazino, hydrazono, C1-C 20 alkyl, and C1-C 20 alkoxy;

[0376] C1-C 20 alkyl and C1-C 20 alkoxy each independently substituted with at least one selected from deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, nitro, amidino, hydrazino, hydrazono, phenyl, naphthyl, cyclopentyl, cyclohexyl, adamantyl, norbornyl, and norbornenyl;

[0377] cyclopentyl, cyclohexyl, adamantyl, norbornyl, norbornenyl, phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, pyridyl, pyrazinyl, pyrimidinyl, pyridazinyl, triazinyl, quinolinyl, isoquinolinyl, quinoxalinyl, quinazolinyl, carbazolyl, dibenzofuranyl, and dibenzothiophenyl;

[0378] C1-C 20 alkyl and C1-C 20At least one selected from alkoxy, cyclopentyl, cyclohexyl, adamantyl, norbornyl, norbornenyl, phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, pyridyl, pyrazinyl, pyrimidinyl, pyridazinyl, triazinyl, quinolinyl, isoquinolinyl, quinoxalinyl, quinazolinyl, carbazolyl, dibenzofuranyl and dibenzothiophenyl; and

[0379] -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

[0380] Q 401 to Q 403 can each independently be selected from C1-C 10 alkyl, C1-C 10 alkoxy, phenyl, biphenyl and naphthyl, but the embodiments of the present disclosure are not limited thereto.

[0381] In one or more embodiments, when xc1 in Formula 401 is 2 or greater, two A 401 in two or more L 401 can optionally be connected via X 407 as a linking group, or two A 401 in two or more L 402 can optionally be connected via X 408 as a linking group (see Compound PD1 to Compound PD4 and Compound PD7). X 407 and X 408 can each independently be a single bond, *-O-*', *-S-*', *-C(=O)-*', *-N(Q 413 )-*', *-C(Q 413 )(Q 414 )-*' or *-C(Q 413 )=C(Q 414 )-*' (wherein Q 413 and Q 414may each independently be hydrogen, deuterium, C1-C 20 alkyl, C1-C 20 alkoxy, phenyl, biphenyl, terphenyl or naphthyl), but is not limited thereto.

[0382] L in Formula 401 402 may be a monovalent organic ligand, a divalent organic ligand or a trivalent organic ligand. For example, L 402 may be selected from a halogen atom, a diketone group (e.g., acetylacetone (ate)), a carboxylic acid group (e.g., picolinic acid (salt)), -C(=O), an isonitrile group, -CN and a phosphorus group (e.g., phosphine or phosphite (salt)), but the embodiments of the present disclosure are not limited thereto.

[0383] 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:

[0384]

[0385]

[0386] The fluorescent dopant in the emission layer

[0387] The fluorescent dopant may include an arylamine compound or a styrylamine compound.

[0388] The fluorescent dopant may include a compound represented by Formula 501:

[0389] Formula 501

[0390]

[0391] In Formula 501,

[0392] Ar 501 may be a substituted or unsubstituted C5-C 60 carbocyclic group or a substituted or unsubstituted C1-C 60 heterocyclic group,

[0393] L 501 to L 503 may each independently be selected from a substituted or unsubstituted C3-C 10 subcycloalkyl group, a substituted or unsubstituted C1-C 10 subheterocycloalkyl group, a substituted or unsubstituted C3-C 10 subcycloalkenyl group, a substituted or unsubstituted C1-C 10 subheterocycloalkenyl group, a substituted or unsubstituted C6-C 60 subaryl group, a substituted or unsubstituted C1-C 60Heteroarylene, substituted or unsubstituted divalent non-aromatic condensed polycyclic group, and substituted or unsubstituted divalent non-aromatic condensed heteropolycyclic group,

[0394] xd1 to xd3 can each independently be an integer from 0 to 3,

[0395] R 501 and R 502 can each independently be selected from 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, and substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group, and

[0396] xd4 can be an integer from 1 to 6.

[0397] In one embodiment, Ar in formula 501 501 can be selected from:

[0398] naphthyl, heptalene, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenalenyl, phenanthrenyl, anthracenyl, fluoranthenyl, benzo[9,10]phenanthrenyl, pyrenyl, -yl, tetraphenylenyl, picenyl, perylenyl, pentaphenyl, indenoanthracenyl, and indeno-phenanthrenyl; and

[0399] each independently substituted with at least one selected from deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazino, hydrazono, C1-C 20 alkyl, C1-C 20 alkoxy, phenyl, biphenyl, terphenyl, and naphthyl of naphthyl, heptalene, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenalenyl, phenanthrenyl, anthracenyl, fluoranthenyl, benzo[9,10]phenanthrenyl, pyrenyl, -yl, tetraphenylenyl, picenyl, perylenyl, pentaphenyl, indenoanthracenyl, and indeno-phenanthrenyl.

[0400] In one or more embodiments, L in formula 501 501 to L 503 can each independently be selected from:

[0401] Phenylene, naphthylene, fluorenylene, spirobifluorenylene, benzo[9,10]phenanthrylene, dibenzo[9,10]phenanthrylene, phenanthrylene, anthrylene, fluoranthenylene, benzo[9,10]phenanthrylene, pyrenylene, -yl, perylenylene, pentaphenylene, hexacenylene, pentacenylene, thienylene, furanylene, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothienyl, dibenzofuranyl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl and pyridinyl; and

[0402] each is independently substituted with at least one selected from deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, nitro, amidino, hydrazino, hydrazono, C1-C 20 alkyl, C1-C 20 alkoxy, phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthryl, anthryl, fluoranthenyl, benzo[9,10]phenanthryl, pyrenyl, -yl, perylenyl, pentaphenyl, hexacenyl, pentacenyl, thienyl, furanyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothienyl, dibenzofuranyl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl and pyridinyl of phenylene, naphthylene, fluorenylene, spirobifluorenylene, benzo[9,10]phenanthrylene, dibenzo[9,10]phenanthrylene, phenanthrylene, anthrylene, fluoranthenylene, benzo[9,10]phenanthrylene, pyrenylene, -yl, perylenylene, pentaphenylene, hexacenylene, pentacenylene, thienylene, furanylene, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothienyl, dibenzofuranyl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl and pyridinyl.

[0403] In one or more embodiments, R 501 and R 502 in Formula 501 can each independently be selected from:

[0404] phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthryl, anthryl, fluoranthenyl, benzo[9,10]phenanthryl, pyrenyl, -yl, perylenyl, pentaphenyl, hexacenyl, pentacenyl, thienyl, furanyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothienyl, dibenzofuranyl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl and pyridinyl; and

[0405] each is independently substituted with at least one selected from deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, nitro, amidino, hydrazino, hydrazono, C1-C 20Alkyl, C1-C 20 Alkoxy, phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthryl, anthryl, fluoranthenyl, benzo[9,10]phenanthryl, pyrenyl, -yl, perylenyl, pentaphenyl, hexaphenyl, pentacenyl, thiophenyl, furyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothiophenyl, dibenzofuranyl, dibenzothiophenyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, pyridyl and -Si(Q 31 )(Q 32 )(Q 33 ) At least one selected from phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthryl, anthryl, fluoranthenyl, benzo[9,10]phenanthryl, pyrenyl, -yl, perylenyl, pentaphenyl, hexaphenyl, pentacenyl, thiophenyl, furyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothiophenyl, dibenzofuranyl, dibenzothiophenyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl and pyridyl, and

[0406] Q 31 to Q 33 can each independently be selected from C1-C 10 alkyl, C1-C 10 alkoxy, phenyl, biphenyl, terphenyl and naphthyl.

[0407] In one or more embodiments, xd4 in Formula 501 can be 2, but the embodiments of the present disclosure are not limited thereto.

[0408] For example, the fluorescent dopant can be selected from Compound FD1 to Compound FD22:

[0409]

[0410]

[0411]

[0412] In one or more embodiments, the fluorescent dopant can be selected from the following compounds, but the embodiments of the present disclosure are not limited thereto:

[0413]

[0414] Quantum dots in the emission layer

[0415] Quantum dots can be nanoparticles including II-VI group compounds, III-V group compounds, group IV elements, group IV compounds, or IV-VI group compounds (e.g., composed of II-VI group compounds, III-V group compounds, or IV-VI group compounds).

[0416] IV-VI group compounds can be selected from: binary compounds selected from SnS, SnSe, SnTe, PbS, PbSe, PbTe, or mixtures thereof; ternary compounds selected from SnSeS, SnSeTe, SnSTe, PbSeS, PbSeTe, PbSTe, SnPbS, SnPbSe, SnPbTe, or mixtures thereof; and quaternary compounds selected from SnPbSSe, SnPbSeTe, SnPbSTe, or mixtures thereof. Group IV elements can be selected from Si, Ge, and mixtures thereof. Group IV compounds can be selected from: binary compounds selected from SiC, SiGe, and combinations thereof.

[0417] Here, the binary, ternary, or quaternary compounds can be present in different particles at a substantially uniform concentration, or can be present in the same particle in a state where the concentration distribution is partially different. In addition, the binary, ternary, or quaternary compounds can have a core-shell structure in which one quantum dot surrounds another quantum dot. The interface between the core and the shell can have such a concentration gradient that the concentration of atoms present in the shell decreases towards the core.

[0418] In one or more embodiments, the quantum dots can have a core-shell structure that includes a core having the above-described nanoparticles and a shell surrounding the core. The shell of the quantum dots can act as a protective layer for maintaining semiconductor properties by preventing or reducing chemical degeneration of the core, and / or can act as a charged layer for imparting electrophoretic properties to the quantum dots. The shell can be a single layer or multiple layers. The interface between the core and the shell can have such a concentration gradient that the concentration of atoms decreases from the shell towards the core. Non-limiting examples of the shell of the quantum dots can include metal or non-metal oxides, semiconductor compounds, or any combination thereof.

[0419] Non-limiting examples of metal or non-metal oxides include binary compounds (such as SiO2, Al2O3, TiO2, ZnO, MnO, Mn2O3, Mn3O4, CuO, FeO, Fe2O3, Fe3O4, CoO, Co3O4, and / or NiO) and ternary compounds (such as MgAl2O4, CoFe2O4, NiFe2O4, and / or CoMn2O4), but the embodiments of the present disclosure are not limited thereto.

[0420] Non-limiting examples of semiconductor compounds include CdS, CdSe, CdTe, ZnS, ZnSe, ZnTe, ZnSeS, ZnTeS, GaAs, GaP, GaSb, HgS, HgSe, HgTe, InAs, InP, InGaP, InSb, AlAs, AlP, AlSb, etc., but embodiments of the present disclosure are not limited thereto.

[0421] The full width at half maximum (FWHM) of the emission wavelength spectrum of the quantum dots can be about 45 nm or less, for example about 40 nm or less, for example about 30 nm or less. When the FWHM of the emission wavelength spectrum of the quantum dots is within this range, color purity or color reproducibility can be improved. In addition, the light emitted by the quantum dots can be irradiated omnidirectionally, thereby providing a wide viewing angle.

[0422] In some embodiments, the quantum dots can be quantum dots commonly used in the art, but there is no particular limitation. For example, spherical, pyramidal, multi-armed or cubic nanoparticles, nanotubes, nanowires, nanofibers and / or nanoplate particles can be used.

[0423] Quantum dots can emit light of various colors according to their particle sizes. Therefore, quantum dots can emit various emission colors such as blue light, red light or green light.

[0424] The electron transport region in the organic layer 150

[0425] The electron transport region can have: i) a single-layer structure including a single layer containing a single material; ii) a single-layer structure including a single layer containing a plurality of different materials; or iii) a multi-layer structure having a plurality of layers including a plurality of different materials.

[0426] The electron transport region can include at least one selected from a buffer layer, a hole blocking layer, an electron control layer, an electron transport layer and an electron injection layer, but embodiments of the present disclosure are not limited thereto.

[0427] For example, the electron transport region can 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 the constituent layers of each structure are sequentially stacked from the emission layer in the stated order. However, embodiments of the structure of the electron transport region are not limited thereto.

[0428] 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 (or π electron-depleted nitrogen-containing ring).

[0429] The term "π electron-depleted nitrogen-containing ring" refers to a C1-C 60 heterocyclic group having at least one *-N=*' moiety as a ring-forming moiety.

[0430] For example, the "π electron-depleted nitrogen-containing ring" may be: i) a 5- to 7-membered hetero monocyclic group having at least one *-N=*' moiety; ii) a hetero polycyclic group in which two or more 5- to 7-membered hetero monocyclic groups each having at least one *-N=*' moiety are condensed with each other; or iii) a hetero polycyclic group in which at least one 5- to 7-membered hetero monocyclic group having at least one *-N=*' moiety is condensed with at least one C5-C 60 carbocyclic group.

[0431] Non-limiting examples of the π electron-depleted nitrogen-containing ring 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 are not limited thereto.

[0432] In some embodiments, for example, the electron transport region may include a compound represented by Formula 601:

[0433] Formula 601

[0434] [Ar 601 xe11 -[(L 601 ) xe1 -R 601 xe21 ,

[0435] In Formula 601,

[0436] Ar 601 may be a substituted or unsubstituted C5-C 60 carbocyclic group or a substituted or unsubstituted C1-C 60 heterocyclic group,

[0437] xe11 may be 1, 2, or 3,

[0438] L 601 ​​may be selected from substituted or unsubstituted C3-C 10 subcycloalkyl, substituted or unsubstituted C1-C 10 subheterocycloalkyl, substituted or unsubstituted C3-C 10 subcycloalkenyl, substituted or unsubstituted C1-C 10 subheterocycloalkenyl, substituted or unsubstituted C6-C 60 subaryl, substituted or unsubstituted C1-C 60 subheteroaryl, substituted or unsubstituted divalent non-aromatic condensed polycyclic group and substituted or unsubstituted divalent non-aromatic condensed heteropolycyclic group,

[0439] xe1 may be an integer from 0 to 5,

[0440] R 601 may be selected from 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(Q 601 )(Q 602 )(Q 603 ), -C(=O)(Q 601 ), -S(=O)2(Q 601 ) and -P(=O)(Q 601 )(Q 602 ),

[0441] Q 601 to Q 603 may each independently be C1-C 10 alkyl, C1-C 10 alkoxy, phenyl, biphenyl, terphenyl or naphthyl, and

[0442] xe21 may be an integer from 1 to 5.

[0443] In one embodiment, at least one of xe1 1 Ar 601 and xe21 1 R 601 may include a nitrogen-containing ring with electron-deficient π electrons.

[0444] In one embodiment, Ar in Formula 601601 may be selected from:

[0445] phenyl, naphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenalenyl, phenanthrenyl, anthracenyl, fluoranthenyl, benzo[9,10]phenanthrenyl, pyrenyl, -yl, tetracenyl, picenyl, perylenyl, pentaphenylenyl, indenoanthracenyl, dibenzofuranyl, dibenzothiophenyl, carbazolyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, pyridyl, pyrazinyl, pyrimidinyl, pyridazinyl, indazolyl, purinyl, quinolinyl, isoquinolinyl, benzoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, isobenzothiazolyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, oxadiazolyl, triazinyl, thiadiazolyl, imidazopyridyl, imidazopyrimidinyl and azacarbazolyl; and

[0446] each is independently substituted with at least one selected from deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazino, hydrazono, C1-C 20 alkyl, C1-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 ) of phenyl, naphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenalenyl, phenanthrenyl, anthracenyl, fluoranthenyl, benzo[9,10]phenanthrenyl, pyrenyl, -yl, tetracenyl, picenyl, perylenyl, pentaphenylenyl, indenoanthracenyl, dibenzofuranyl, dibenzothiophenyl, carbazolyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, pyridyl, pyrazinyl, pyrimidinyl, pyridazinyl, indazolyl, purinyl, quinolinyl, isoquinolinyl, benzoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, isobenzothiazolyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, oxadiazolyl, triazinyl, thiadiazolyl, imidazopyridyl, imidazopyrimidinyl and azacarbazolyl, and

[0447] Q 31 to Q 33 may each independently be selected from C1-C 10 alkyl, C1-C 10 alkoxy, phenyl, biphenyl, terphenyl and naphthyl.

[0448] When xe11 in Formula 601 is 2 or greater, two or more Ars 601 can be connected to each other via a single bond.

[0449] In one or more embodiments, Ar in Formula 601 601 can be anthryl.

[0450] In one or more embodiments, the compound represented by Formula 601 can be represented by Formula 601-1:

[0451] Formula 601-1

[0452]

[0453] In Formula 601-1,

[0454] 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 ), and at least one selected from X 614 to X 616 can be N.

[0455] L 611 to L 613 can each independently be the same as described for binding L 601 .

[0456] xe611 to xe613 can each independently be the same as defined for xe1.

[0457] R 611 to R 613 can each independently be the same as described for binding R 601 , and

[0458] R 614 to R 616 can each independently be selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, nitro, amidino, hydrazino, hydrazono, C1-C 20 alkyl, C1-C 20 alkoxy, phenyl, biphenyl, terphenyl, and naphthyl.

[0459] In one embodiment, L in Formula 601 601 and L in Formula 601-1 611 to L 613 can each independently be selected from:

[0460] Phenylene, naphthylene, fluoreneylene, spirobifluoreneylene, benzo[9,10]fluoreneylene, dibenzo[9,10]fluoreneylene, phenanthrylene, anthrylene, fluoranthenylene, benzo[9,10]phenanthrylene, pyrenylene, yl, perylenylene, pentaphenylene, hexaphenylenylene, pentaphenylenylene, thienylene, furanylene, carbazolyl, indolyl, isoindolyl, benzofuranylene, benzothienylene, dibenzofuranylene, dibenzothienylene, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, pyridinyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, thiadiazolyl, oxadiazolyl, pyrazinyl, pyrimidinyl, pyridazinyl, triazinyl, quinolinyl, isoquinolinyl, benzoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, isobenzothiazolyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, imidazopyridinyl, imidazopyrimidinyl and azacarbazolyl; and

[0461] each is independently substituted with at least one selected from deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, nitro, amidino, hydrazino, hydrazono, C1-C 20 alkyl, C1-C 20 alkoxy, phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthryl, anthryl, fluoranthenyl, benzo[9,10]phenanthryl, pyrenyl, yl, perylenyl, pentaphenyl, hexaphenylenyl, pentaphenylenyl, thienyl, furyl, carbazolyl, indolyl, isoindolyl, benzofuryl, benzothienyl, dibenzofuryl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, pyridinyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, thiadiazolyl, oxadiazolyl, pyrazinyl, pyrimidinyl, pyridazinyl, triazinyl, quinolinyl, isoquinolinyl, benzoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, isobenzothiazolyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, imidazopyridinyl, imidazopyrimidinyl and azacarbazolyl of phenylene, naphthylene, fluoreneylene, spirobifluoreneylene, benzofluoreneylene, dibenzofluoreneylene, phenanthrylene, anthrylene, fluoranthenylene, benzo[9,10]phenanthrylene, pyrenylene, Groups such as base, perylene diimide group, pentacenequinone group, hexacenequinone group, pentacene group, thiophene group, furan group, carbazole group, indole group, isoindole group, benzofuran group, benzothiophene group, dibenzofuran group, dibenzothiophene group, benzocarbazole group, dibenzocarbazole group, dibenzosilole group, pyridine group, imidazole group, pyrazole group, thiazole group, isothiazole group, oxazole group, isoxazole group, thiadiazole group, oxadiazole group, pyrazine group, pyrimidine group, pyridazine group, triazine group, quinoline group, isoquinoline group, benzoquinoline group, phthalazine group, naphthyridine group, quinoxaline group, quinazoline group, cinnoline group, phenanthridine group, acridine group, phenanthroline group, phenazine group, benzimidazole group, isobenzothiazole group, benzoxazole group, isobenzoxazole group, triazole group, tetrazole group, imidazopyridine group, imidazopyrimidine group and azacarbazole group,

[0462] However, the embodiments of the present disclosure are not limited thereto.

[0463] In one or more embodiments, xe1 in Formula 601 and xe611 to xe613 in Formula 601-1 can each independently be 0, 1 or 2.

[0464] In one or more embodiments, R in Formula 601 601 and R in Formula 601-1 611 to R 613 can each independently be selected from:

[0465] Phenyl, biphenyl, terphenyl, naphthyl, fluorene, spirobifluorene, benzofluorene, dibenzofluorene, phenanthrene, anthracene, fluoranthene, benzo[9,10]phenanthrene, pyrene, Group, perylene group, pentacenequinone group, hexacenequinone group, pentacene group, thiophene group, furan group, carbazole group, indole group, isoindole group, benzofuran group, benzothiophene group, dibenzofuran group, dibenzothiophene group, benzocarbazole group, dibenzocarbazole group, dibenzosilole group, pyridine group, imidazole group, pyrazole group, thiazole group, isothiazole group, oxazole group, isoxazole group, thiadiazole group, oxadiazole group, pyrazine group, pyrimidine group, pyridazine group, triazine group, quinoline group, isoquinoline group, benzoquinoline group, phthalazine group, naphthyridine group, quinoxaline group, quinazoline group, cinnoline group, phenanthridine group, acridine group, phenanthroline group, phenazine group, benzimidazole group, isobenzothiazole group, benzoxazole group, isobenzoxazole group, triazole group, tetrazole group, imidazopyridine group, imidazopyrimidine group and azacarbazole group;

[0466] Each independently substituted with deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazino, hydrazone, C1-C 20 alkyl, C1-C 20An alkoxy group, 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 phenanthryl group, an anthryl group, a fluoranthenyl group, a benzo[9,10]phenanthryl group, a pyrenyl group, a perylenyl group, a pentaphenyl group, a hexaphenyl group, a quaterphenyl group, a thienyl group, a furyl group, a carbazolyl group, an indolyl group, an isoindolyl group, a benzofuranyl group, a benzothienyl group, a dibenzofuranyl group, a dibenzothienyl group, a benzocarbazolyl group, a dibenzocarbazolyl group, a dibenzosilolyl group, a pyridyl group, an imidazolyl group, a pyrazolyl group, a thiazolyl group, an isothiazolyl group, an oxazolyl group, an isoxazolyl group, a thiadiazolyl group, an oxadiazolyl group, a pyrazinyl group, a pyrimidinyl group, a pyridazinyl group, a triazinyl group, a quinolinyl group, an isoquinolinyl group, a benzoquinolinyl group, a phthalazinyl group, a naphthyridinyl group, a quinoxalinyl group, a quinazolinyl group, a cinnolinyl group, a phenanthridinyl group, an acridinyl group, a phenanthrolinyl group, a phenazinyl group, a benzimidazolyl group, an isobenzothiazolyl group, a benzoxazolyl group, an isobenzoxazolyl group, a triazolyl group, a tetrazolyl group, an imidazopyridinyl group, an imidazopyrimidinyl group, and an azacarbazolyl group; and at least one selected from the group consisting of 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 phenanthryl group, an anthryl group, a fluoranthenyl group, a benzo[9,10]phenanthryl group, a pyrenyl group, a perylenyl group, a pentaphenyl group, a hexaphenyl group, a quaterphenyl group, a thienyl group, a furyl group, a carbazolyl group, an indolyl group, an isoindolyl group, a benzofuranyl group, a benzothienyl group, a dibenzofuranyl group, a dibenzothienyl group, a benzocarbazolyl group, a dibenzocarbazolyl group, a dibenzosilolyl group, a pyridyl group, an imidazolyl group, a pyrazolyl group, a thiazolyl group, an isothiazolyl group, an oxazolyl group, an isoxazolyl group, a thiadiazolyl group, an oxadiazolyl group, a pyrazinyl group, a pyrimidinyl group, a pyridazinyl group, a triazinyl group, a quinolinyl group, an isoquinolinyl group, a benzoquinolinyl group, a phthalazinyl group, a naphthyridinyl group, a quinoxalinyl group, a quinazolinyl group, a cinnolinyl group, a phenanthridinyl group, an acridinyl group, a phenanthrolinyl group, a phenazinyl group, a benzimidazolyl group, an isobenzothiazolyl group, a benzoxazolyl group, an isobenzoxazolyl group, a triazolyl group, a tetrazolyl group, an imidazopyridinyl group, an imidazopyrimidinyl group, and an azacarbazolyl group; and

[0467] -S(=O)2(Q 601 ), and -P(=O)(Q 601 )(Q 602 ), and

[0468] Q 601 and Q 602 can each independently be the same as those described above.

[0469] The electron transport region may include at least one compound selected from compounds ET1 to ET36, but the embodiments of the present disclosure are not limited thereto:

[0470]

[0471]

[0472]

[0473]

[0474] In one or more embodiments, the electron transport region may include at least one compound selected from 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline (BCP), 4,7-diphenyl-1,10-phenanthroline (Bphen), Alq3, BAlq, 3-(biphenyl-4-yl)-5-(4-tert-butylphenyl)-4-phenyl-4H-1,2,4-triazole (TAZ), and NTAZ:

[0475]

[0476] The thicknesses of the buffer layer, the hole blocking layer, and the electron control layer may all be about to about (e.g., about to about ). When the thicknesses of the buffer layer, the hole blocking layer, and the electron control layer are all within these ranges, the electron transport region may have excellent hole blocking characteristics and / or electron control characteristics without significantly increasing the driving voltage.

[0477] The thickness of the electron transport layer may be about to about (e.g., about to about ). When the thickness of the electron transport layer is within the range described above, the electron transport layer may have satisfactory electron transport characteristics without significantly increasing the driving voltage.

[0478] In addition to the materials described above, the electron transport region (e.g., the electron transport layer in the electron transport region) may further include a metal-containing material.

[0479] The metal-containing material may include at least one selected from alkali metal complexes and alkaline earth metal complexes. The alkali metal complexes may include metal ions selected from lithium (Li) ions, sodium (Na) ions, potassium (K) ions, rubidium (Rb) ions, and cesium (Cs) ions, and the alkaline earth metal complexes may include metal ions selected from beryllium (Be) ions, magnesium (Mg) ions, calcium (Ca) ions, strontium (Sr) ions, and barium (Ba) ions. The ligands coordinated to the metal ions of the alkali metal complexes or alkaline earth metal complexes may 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.

[0480] For example, the metal-containing material may include a Li complex. The Li complex may include, for example, compound ET-D1 (lithium hydroxyquinoline, LiQ) or compound ET-D2:

[0481]

[0482] 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.

[0483] The electron injection layer may have: i) a single-layer structure including a single layer containing a single material; ii) a single-layer structure including a single layer containing a plurality of different materials; or iii) a multi-layer structure having a plurality of layers including a plurality of different materials.

[0484] 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.

[0485] 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.

[0486] The alkaline earth metal may be selected from Mg, Ca, Sr, and Ba.

[0487] The rare earth metal may be selected from scandium (Sc), yttrium (Y), cerium (Ce), terbium (Tb), ytterbium (Yb), and gadolinium (Gd).

[0488] The alkali metal compounds, alkaline earth metal compounds, and rare earth metal compounds may each independently be selected from oxides and halides (e.g., fluorides, chlorides, bromides, and / or iodides) of alkali metals, alkaline earth metals, and rare earth metals.

[0489] The alkali metal compound may be selected from alkali metal oxides (such as, Li2O, Cs2O, and / or K2O) and alkali metal halides (such as, LiF, NaF, CsF, KF, LiI, NaI, CsI, and / or KI). In one embodiment, the alkali metal compound may be selected from LiF, Li2O, NaF, LiI, NaI, CsI, and KI, but the embodiments of the present disclosure are not limited thereto.

[0490] 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) and / or Ba x Ca 1-x O (0 < x < 1)). In one embodiment, the alkaline earth metal compound may be selected from BaO, SrO, and CaO, but the embodiments of the present disclosure are not limited thereto.

[0491] The rare earth metal compound may be selected from YbF3, ScF3, Sc2O3, Y2O3, Ce2O3, GdF3, and TbF3. In one embodiment, the rare earth metal compound may be selected from YbF3, ScF3, TbF3, YbI3, ScI3, and TbI3, but the embodiments of the present disclosure are not limited thereto.

[0492] The alkali metal complex, alkaline earth metal complex, and rare earth metal complex may respectively include 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 may 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.

[0493] The electron injection layer may 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 (e.g., consisting of 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). In one or more embodiments, the electron injection layer may 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 a combination thereof may be uniformly or non-uniformly dispersed in a matrix including the organic material.

[0494] The thickness of the electron injection layer may be about to about (e.g., about to about ). When the thickness of the electron injection layer is within the range described above, the electron injection layer may have satisfactory electron injection characteristics without significantly increasing the driving voltage.

[0495] The second electrode 190

[0496] The second electrode 190 may be disposed on the organic layer 150 having such a structure. The second electrode 190 may be a cathode as an electron injection electrode. In this regard, the material used to form the second electrode 190 may be selected from metals, alloys, conductive compounds, and combinations thereof, all of which have relatively low work functions.

[0497] 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.

[0498] The second electrode 190 may have a single-layer structure or a multi-layer structure including two or more layers.

[0499] Figures 2 to 4 description

[0500] Figure 2 The organic light-emitting device 20 includes a first cover layer 210, a first electrode 110, an organic layer 150, and a second electrode 190 stacked in this stated order sequentially. Figure 3 The organic light-emitting device 30 includes a first electrode 110, an organic layer 150, a second electrode 190, and a second cover layer 220 stacked in this stated order sequentially. Figure 4 The organic light-emitting device 40 includes a first cover layer 210, a first electrode 110, an organic layer 150, a second electrode 190, and a second cover layer 220 stacked in this stated order sequentially.

[0501] Regarding Figures 2 to 4 , the first electrode 110, the organic layer 150, and the second electrode 190 may all be independently the same as those described in combination Figure 1 description.

[0502] In the organic layer 150 of each of the organic light-emitting device 20 and the organic light-emitting device 40, the light generated in the emission layer may pass through the first electrode 110 and the first cover layer 210 toward the outside, and the first electrode 110 may be a semi-transmissive electrode or a transmissive electrode. In the organic layer 150 of each of the organic light-emitting device 30 and the organic light-emitting device 40, the light generated in the emission layer may pass through the second electrode 190 and the second cover layer 220 toward the outside, and the second electrode 190 may be a semi-transmissive electrode or a transmissive electrode.

[0503] Both the first cover layer 210 and the second cover layer 220 may improve the external light-emitting efficiency of the organic light-emitting device according to the principle of constructive interference.

[0504] The first capping layer 210 and the second capping layer 220 may each independently be an organic capping layer including an organic material, an inorganic capping layer including an inorganic material, or a composite capping layer including an organic material and an inorganic material.

[0505] At least one selected from the first cap layer 210 and the second cap layer 220 may each independently include at least one material selected from carbocyclic compounds, heterocyclic compounds, amine compounds, porphyrin derivatives, phthalocyanine derivatives, naphthalocyanine derivatives, alkali metal complexes, and alkaline earth metal complexes. Carbocyclic compounds, heterocyclic compounds, and amine compounds may each be optionally substituted with a substituent containing at least one element selected from O, N, S, Se, Si, F, Cl, Br, and I. In one embodiment, at least one selected from the first cap layer 210 and the second cap layer 220 may each independently include a condensed ring compound and / or an amine compound represented by Formula 1.

[0506] In one embodiment, at least one selected from the first capping layer 210 and the second capping layer 220 may each independently include the condensed ring compound represented by Formula 1, the compound represented by Formula 201, and / or the compound represented by Formula 202.

[0507] In one or more embodiments, at least one selected from the first cap layer 210 and the second cap layer 220 may each independently include a compound selected from Compound 1 to Compound 225, Compound HT28 to Compound HT33, and Compound CP1 to Compound CP5, but embodiments of the present disclosure are not limited thereto:

[0508]

[0509] In the above, it has been combined Figures 1 to 4 The organic light emitting device according to the embodiment is described, but the embodiments of the present disclosure are not limited thereto.

[0510] A layer constituting a hole transport region, an emission layer, and a layer constituting an electron transport region can be formed in a set area or a predetermined area 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.

[0511] When the layer constituting the hole transport region, the emission layer, and the layer constituting the electron transport region are each 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. To about The vacuum deposition was performed at a deposition rate of .

[0512] When forming the layer constituting the hole transport region, the emission layer, and the layer constituting the electron transport region by spin coating, spin coating can 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 according to the material to be included in the layer to be formed and the structure of the layer to be formed.

[0513] General definition of substituents

[0514] As used herein, the term "C1-C 60 alkyl" refers to a straight-chain or branched-chain aliphatic saturated hydrocarbon monovalent group having 1 to 60 carbon atoms, non-limiting examples of which include methyl, ethyl, propyl, isobutyl, sec-butyl, tert-butyl, pentyl, isopentyl, and hexyl. As used herein, the term "C1-C 60 alkylene" refers to a divalent group having substantially the same structure as C1-C 60 alkyl.

[0515] As used herein, the term "C2-C 60 alkenyl" refers to a hydrocarbon group having at least one carbon-carbon double bond at the middle or end of C2-C 60 alkyl, non-limiting examples of which include vinyl, propenyl, and butenyl. As used herein, the term "C2-C 60 alkenylene" refers to a divalent group having substantially the same structure as C2-C 60 alkenyl.

[0516] As used herein, the term "C2-C 60 alkynyl" refers to a hydrocarbon group having at least one carbon-carbon triple bond at the middle or end of C2-C 60 alkyl, non-limiting examples of which include ethynyl and propynyl. As used herein, the term "C2-C 60 alkynylene" refers to a divalent group having substantially the same structure as C2-C 60 alkynyl.

[0517] As used herein, the term "C1-C 60 alkoxy" refers to a monovalent group represented by -OA 101 (wherein A 101 is C1-C 60 alkyl), non-limiting examples of which include methoxy, ethoxy, and isopropoxy.

[0518] As used herein, the term "C3-C 10 cycloalkyl" refers to a monovalent saturated hydrocarbon monocyclic group having 3 to 10 carbon atoms, non-limiting examples of which include cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, and cycloheptyl. As used herein, the term "C3-C10 "Subcycloalkyl" refers to a divalent group having substantially the same structure as a C3-C 10 cycloalkyl group.

[0519] As used herein, the term "C1-C 10 heterocycloalkyl" refers to a monovalent saturated monocyclic group having at least one heteroatom selected from N, O, Si, P, and S as ring-forming atoms and 1 to 10 carbon atoms. Non-limiting examples thereof include 1,2,3,4-oxadiazolyl, tetrahydrofuranyl, and tetrahydrothienyl. As used herein, the term "C1-C 10 subheterocycloalkyl" refers to a divalent group having substantially the same structure as a C1-C 10 heterocycloalkyl group.

[0520] As used herein, the term "C3-C 10 cycloalkenyl" refers to a monovalent monocyclic group having 3 to 10 carbon atoms, having at least one carbon-carbon double bond in its ring and not having aromaticity. Non-limiting examples thereof include cyclopentenyl, cyclohexenyl, and cycloheptenyl. As used herein, the term "C3-C 10 subcycloalkenyl" refers to a divalent group having substantially the same structure as a C3-C 10 cycloalkenyl group.

[0521] As used herein, the term "C1-C 10 heterocycloalkenyl" refers to a monovalent monocyclic group having at least one heteroatom selected from N, O, Si, P, and S as ring-forming atoms, 1 to 10 carbon atoms, and at least one double bond in its ring. Non-limiting examples of C1-C 10 heterocycloalkenyl include 4,5-dihydro-1,2,3,4-oxadiazolyl, 2,3-dihydrofuranyl, and 2,3-dihydrothienyl. As used herein, the term "C1-C 10 subheterocycloalkenyl" refers to a divalent group having substantially the same structure as a C1-C 10 heterocycloalkenyl group.

[0522] As used herein, the term "C6-C 60 aryl" refers to a monovalent group having a carbocyclic aromatic system including 6 to 60 carbon atoms. As used herein, the term "C6-C 60 subaryl" refers to a divalent group having a carbocyclic aromatic system including 6 to 60 carbon atoms. Non-limiting examples of C6-C 60 aryl include phenyl, naphthyl, anthracenyl, phenanthrenyl, pyrenyl, and yl. When both C6-C 60 aryl and C6-C 60 subaryl include two or more rings, the rings may be fused to each other.

[0523] As used herein, the term "C1-C 60 heteroaryl" refers to a monovalent group having a heteroaromatic system, the heteroaromatic system having at least one heteroatom selected from N, O, Si, P, and S as ring-forming atoms in addition to 1 to 60 carbon atoms. As used herein, the term "C1-C 60 heteroarylene" refers to a divalent group having a heteroaromatic system, the heteroaromatic system having at least one heteroatom selected from N, O, Si, P, and S as ring-forming atoms in addition to 1 to 60 carbon atoms. C1-C 60 Non-limiting examples of heteroaryl include pyridyl, pyrimidinyl, pyrazinyl, pyridazinyl, triazinyl, quinolinyl, and isoquinolinyl. When C1-C 60 heteroaryl and C1-C 60 heteroarylene each include two or more rings, the rings may be fused to each other.

[0524] As used herein, the term "C6-C 60 aryloxy" refers to -OA 102 (wherein A 102 is C6-C 60 aryl), and as used herein, the term "C6-C 60 arylthio" refers to -SA 103 (wherein A 103 is C6-C 60 aryl).

[0525] As used herein, the term "monovalent non-aromatic fused polycyclic group" refers to a monovalent group having two or more rings fused to each other, only carbon atoms (e.g., 8 to 60 carbon atoms) as ring-forming atoms, and having no aromaticity in its entire molecular structure. Non-limiting examples of the monovalent non-aromatic fused polycyclic group are fluorenyl. As used herein, the term "divalent non-aromatic fused polycyclic group" refers to a divalent group having substantially the same structure as the monovalent non-aromatic fused polycyclic group.

[0526] As used herein, the term "monovalent non-aromatic fused heteropolycyclic group" refers to a monovalent group having two or more rings fused to each other, having at least one heteroatom selected from N, O, Si, P, and S as ring-forming atoms in addition to carbon atoms (e.g., 1 to 60 carbon atoms), and having no aromaticity in its entire molecular structure. Non-limiting examples of the monovalent non-aromatic fused heteropolycyclic group are carbazolyl. As used herein, the term "divalent non-aromatic fused heteropolycyclic group" refers to a divalent group having substantially the same structure as the monovalent non-aromatic fused heteropolycyclic group.

[0527] As used herein, the term "C5-C 60"Carbocyclic group" refers to a monocyclic or polycyclic group having 5 to 60 carbon atoms, wherein the ring-forming atoms are only carbon atoms. As used herein, the term "C5-C" 60 "carbocyclic group" refers to an aromatic carbocyclic group or a non-aromatic carbocyclic group. C5-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, depending on the number of substituents attached to the C5-C 60 carbocyclic group, the C5-C 60 carbocyclic group can be a trivalent group or a tetravalent group.

[0528] As used herein, the term "C1-C" 60 "heterocyclic group" refers to: a group having substantially the same structure as the C5-C carbocyclic group, except that at least one heteroatom selected from N, O, Si, P, and S (the number of carbon atoms can be 1 to 60) is used as a ring-forming atom in addition to carbon. 60

[0529] In this specification, the at least one substituent of the substituted C5-C 60 carbocyclic group, the substituted C1-C 60 heterocyclic group, the substituted C1-C 20 alkylene group, the substituted C2-C 20 alkenylene group, the substituted C3-C 10 cycloalkylene group, the substituted C1-C 10 heterocycloalkylene group, the substituted C3-C 10 cycloalkenylene group, the substituted C1-C 10 heterocycloalkenylene group, the substituted C6-C 60 arylene group, the substituted C1-C 60 heteroarylene group, the substituted divalent non-aromatic condensed polycyclic group, the substituted divalent non-aromatic condensed heteropolycyclic group, the substituted C1-C 60 alkyl group, the substituted C2-C 60 alkenyl group, the substituted C2-C 60 alkynyl group, the substituted C1-C 60 alkoxy group, the substituted C3-C 10 cycloalkyl group, the substituted C1-C 10 heterocycloalkyl group, the substituted C3-C 10 cycloalkenyl group, the substituted C1-C 10 heterocycloalkenyl group, the substituted C6-C 60 aryl group, the substituted C6-C 60 aryloxy group, the substituted C6-C 60 arylthio group, the substituted C1-C 60 heteroaryl group, the substituted monovalent non-aromatic condensed polycyclic group, and the substituted monovalent non-aromatic condensed heteropolycyclic group can be selected from:

[0530] Deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, nitro, amidino, hydrazino, hydrazono, C1-C 60 alkyl, C2-C 60 alkenyl, C2-C 60 alkynyl and C1-C 60 alkoxy;

[0531] Each is independently substituted with at least one selected from deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, nitro, amidino, hydrazino, hydrazono, 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 ) of C1-C 60 alkyl, C2-C 60 alkenyl, C2-C 60 alkynyl and C1-C 60 alkoxy;

[0532] 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 and monovalent non-aromatic condensed heteropolycyclic group;

[0533] Each is independently substituted with at least one selected from deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, nitro, amidino, hydrazino, hydrazono, C1-C 60Alkyl, 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

[0534] -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

[0535] Q 11 To Q 13 , Q 21 To Q 23 and Q 31to Q 33 may each independently be selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, nitro, amidino, hydrazino, hydrazono, 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 fused polycyclic group, monovalent non-aromatic fused heteropolycyclic group, biphenyl and terphenyl.

[0536] As used herein, the term "Ph" refers to phenyl, the term "Me" refers to methyl, the term "Et" refers to ethyl, the term "tert-Bu" or "Bu t " refers to tert-butyl, and the term "OMe" refers to methoxy.

[0537] As used herein, the term "biphenyl" refers to "phenyl substituted with phenyl". In other words, "biphenyl" is a "substituted phenyl" having a "C6-C 60 aryl" as a substituent.

[0538] As used herein, the term "terphenyl" refers to "phenyl substituted with biphenyl". In other words, "terphenyl" is a "substituted phenyl" having a "C6-C 60 aryl substituted with C6-C 60 aryl" as a substituent.

[0539] Unless otherwise defined, both * and *' as used herein refer to the binding positions to adjacent atoms in the corresponding formula.

[0540] Hereinafter, the compounds according to the embodiments and the organic light-emitting devices according to the embodiments will be described in more detail with reference to the synthesis examples and examples. The phrase "using B instead of A" used in the synthesis examples means using the same molar equivalent of B instead of A.

[0541] Examples

[0542] Synthesis Example 1: Synthesis of Compound 2

[0543]

[0544] Synthesis of Intermediate 2-1

[0545] Dissolve 3.17 g (10.0 mmol) of 2-bromo-1-chloro-3-iodobenzene, 1.22 g (10.0 mmol) of phenylboronic acid, 0.58 g (0.5 mmol) of Pd(PPh3)4, and 4.14 g (30.0 mmol) of K2CO3 in 60 mL of a mixed solution comprising THF and H2O (volume ratio 2:1), and then stir at 80 °C for 16 h. Cool the reaction solution to room temperature, and then extract it three times with 60 mL of water and 60 mL of diethyl ether. Dry the thus obtained organic layer using anhydrous magnesium sulfate, and separate and purify the residue obtained by evaporating the solvent by silica gel chromatography to obtain 1.34 g of intermediate 2-1 (yield: 50%). Confirm the prepared compound by LC-MS. C 12 H8BrCl: M + 265.9.

[0546] Synthesis of intermediate 2-2

[0547] Dissolve 2.68 g (10 mmol) of intermediate 2-1 in THF (20 mL), and add n-BuLi thereto at -78 °C, then stir for 1 h to obtain a mixture. Then, dissolve 2.59 g (10 mmol) of 2-bromo-9H-fluoren-9-one in THF (20 mL), and add it to the obtained mixture. After cooling to room temperature, stir the mixture for 1 h, and then extract it with DCM and 1N HCl.

[0548] Dry the organic layer using anhydrous MgSO4 and purify it by column chromatography. Dissolve the obtained organic layer in acetic acid, and add concentrated hydrochloric acid thereto. Reflux the obtained solution for 1 h to complete the reaction. Perform the extraction process three times with 60 mL of water and 60 mL of diethyl ether. Dry the thus obtained organic layer using anhydrous magnesium sulfate, and separate and purify the residue obtained by evaporating the solvent by silica gel chromatography to obtain 2.15 g of intermediate 2-2 (yield: 50%). Confirm the prepared compound by LC-MS. C 25 H 14 BrCl: M + 428.0.

[0549] Synthesis of intermediate 2-3

[0550] 4.30 g (10 mmol) of intermediate 2-2, 2.25 g (10 mmol) of palladium(II) acetate, 6.55 g (25 mmol) of triphenylphosphine, 3.15 g (30 mmol) of Na2CO3, and 60 mL of a mixed solution comprising benzyltriethylammonium chloride and N,N-dimethylacetamide (1:1, V / V) were heated under reflux for 24 hours. After cooling, an extraction process was performed on it three times using 60 mL of water and 60 mL of diethyl ether. The organic layer thus obtained was dried over anhydrous magnesium sulfate, and the residue obtained by evaporating the solvent was separated and purified by silica gel chromatography to obtain 1.57 g of intermediate 2-3 (yield: 40%). The prepared compound was confirmed by LC-MS. C 25 H 13 Br: M + 392.0.

[0551] Synthesis of Compound 2

[0552] 3.93 g (10 mmol) of intermediate 2-3, 2.45 g (10 mmol) of N-phenyl-[1,1'-biphenyl]-4-amine, 0.46 g (0.5 mmol) of Pd2(dba)3 (tris(dibenzylideneacetone)dipalladium(0)), and 2.88 g (30 mmol) of sodium tert-butoxide were dissolved in 60 mL of toluene, and the mixture was stirred at a temperature of 80 °C for 3 hours. The reaction solution was cooled to room temperature, 40 mL of water was added thereto, and the reaction solution was extracted three times with 50 mL of ether. The collected organic layer was dried over anhydrous MgSO4, and the residue obtained by evaporating the solvent was separated and purified by silica gel chromatography to obtain 3.91 g of Compound 2 (yield: 50%). The prepared compound was confirmed by MS / FAB and 1 1H NMR. C 43 H 27 N: M + Calculated value: 557.21, found value: 557.11.

[0553] Synthesis Example 2: Synthesis of Compound 5

[0554]

[0555] Compound 5 was synthesized in substantially the same manner as Compound 2 except that N-phenylnaphthalen-1-amine was used instead of N-phenyl-[1,1'-biphenyl]-4-amine. The prepared compound was confirmed by MS / FAB and 1 1H NMR. C 41 H 25 N: M + Calculated value: 531.20, found value: 531.10.

[0556] Synthesis Example 3: Synthesis of Compound 8

[0557]

[0558] Compound 8 was synthesized in substantially the same manner as Compound 2, except that 9,9-dimethyl-N-phenyl-9H-fluoren-2-amine was used instead of N-phenyl-[1,1'-biphenyl]-4-amine. The prepared compound was confirmed by MS / FAB and 1 H NMR. C 46 H 31 N: M + Calculated value: 597.25, Found value: 597.15.

[0559] Synthesis Example 4: Synthesis of Compound 9

[0560]

[0561] Compound 9 was synthesized in substantially the same manner as Compound 2, except that N,9,9-triphenyl-9H-fluoren-2-amine was used instead of N-phenyl-[1,1'-biphenyl]-4-amine. The prepared compound was confirmed by MS / FAB and 1 H NMR. C 56 H 35 N: M + Calculated value: 721.28, Found value: 721.18.

[0562] Synthesis Example 5: Synthesis of Compound 11

[0563]

[0564] Compound 11 was synthesized in substantially the same manner as Compound 2, except that N,9-diphenyl-9H-carbazol-2-amine was used instead of N-phenyl-[1,1'-biphenyl]-4-amine. The prepared compound was confirmed by MS / FAB and 1 H NMR. C 49 H 30 N2: M + Calculated value: 646.24, Found value: 646.14.

[0565] Synthesis Example 6: Synthesis of Compound 12

[0566]

[0567] Compound 12 was synthesized in substantially the same manner as Compound 2, except that N,9-diphenyl-9H-carbazol-3-amine was used instead of N-phenyl-[1,1'-biphenyl]-4-amine. The prepared compound was confirmed by MS / FAB and1 The prepared compound was confirmed by 1H NMR. C 49 H 30 N2: M + Calculated value: 646.24, found value: 646.14.

[0568] Synthesis Example 7: Synthesis of Compound 14

[0569]

[0570] Compound 14 was synthesized in a manner substantially the same as that of Compound 2, except that 2-(naphthalen-1-yl)-N-phenylaniline was used instead of N-phenyl-[1,1'-biphenyl]-4-amine. The prepared compound was confirmed by MS / FAB and 1 The prepared compound was confirmed by 1H NMR. C 47 H 29 N: M + Calculated value: 607.23, found value: 607.13.

[0571] Synthesis Example 8: Synthesis of Compound 17

[0572]

[0573] Compound 17 was synthesized in a manner substantially the same as that of Compound 2, except that 2-(naphthalen-2-yl)-N-phenylaniline was used instead of N-phenyl-[1,1'-biphenyl]-4-amine. The prepared compound was confirmed by MS / FAB and 1 The prepared compound was confirmed by 1H NMR. C 47 H 29 N: M + Calculated value: 607.23, found value: 607.13.

[0574] Synthesis Example 9: Synthesis of Compound 20

[0575]

[0576] Compound 20 was synthesized in a manner substantially the same as that of Compound 2, except that N-phenyldibenzo[b,d]furan-2-amine was used instead of N-phenyl-[1,1'-biphenyl]-4-amine. The prepared compound was confirmed by MS / FAB and 1 The prepared compound was confirmed by 1H NMR. C 43 H 25 NO: M + Calculated value: 571.19, found value: 571.09.

[0577] Synthesis Example 10: Synthesis of Compound 21

[0578]

[0579] Compound 21 was synthesized in substantially the same manner as compound 2, except that N-phenyldibenz[b,d]furan-1-amine was used instead of N-phenyl-[1,1'-biphenyl]-4-amine. The prepared compound was confirmed by MS / FAB and 1 H NMR. C 43 H 25 NO: M + Calculated: 571.19, Found: 571.09.

[0580] Synthesis Example 11: Synthesis of Compound 25

[0581]

[0582] Compound 25 was synthesized in substantially the same manner as compound 2, except that N-phenyldibenz[b,d]thiophene-1-amine was used instead of N-phenyl-[1,1'-biphenyl]-4-amine. The prepared compound was confirmed by MS / FAB and 1 H NMR. C 43 H 25 NS: M + Calculated: 587.17, Found: 587.07.

[0583] Synthesis Example 12: Synthesis of Compound 38

[0584]

[0585] Compound 38 was synthesized in substantially the same manner as compound 2, except that N-([1,1'-biphenyl]-4-yl)-9,9-dimethyl-9H-fluorene-2-amine was used instead of N-phenyl-[1,1'-biphenyl]-4-amine. The prepared compound was confirmed by MS / FAB and 1 H NMR. C 52 H 35 N: M + Calculated: 673.28, Found: 673.18.

[0586] Synthesis Example 13: Synthesis of Compound 126

[0587]

[0588] Synthesis of Intermediate 126-1

[0589] Dissolve 3.93 g (10.0 mmol) of Intermediate 2-3, 1.56 g (10.0 mmol) of (4-chlorophenyl)boronic acid, 0.58 g (0.5 mmol) of Pd(PPh3)4, and 4.14 g (30.0 mmol) of K2CO3 in 60 mL of a mixed solution of THF and H2O (volume ratio 2:1). Then, stir the solution at 80 °C for 16 h. Cool the reaction solution to room temperature, and then extract it three times with 60 mL of water and 60 mL of diethyl ether. Dry the obtained organic layer using anhydrous magnesium sulfate, and separate and purify the residue obtained by evaporating the solvent by silica gel chromatography to obtain 2.98 g of Intermediate 126-1 (yield: 70%). Confirm the prepared compound by LC-MS. C 31 H 17 Cl: M + 424.1

[0590] Synthesis of Compound 126

[0591] Dissolve 4.25 g (10 mmol) of Intermediate 126-1, 2.45 g (10 mmol) of N-phenyl-[1,1'-biphenyl]-4-amine, 0.46 g (0.5 mmol) of Pd2(dba)3 (tris(dibenzylideneacetone)dipalladium(0)), and 2.88 g (30 mmol) of sodium tert-butoxide in 60 mL of toluene, and stir the mixture at 80 °C for 3 h. Cool the reaction solution to room temperature, add 40 mL of water thereto, and extract the reaction solution three times with 50 mL of ether. Dry the collected organic layer using anhydrous MgSO4, and separate and purify the residue obtained by evaporating the solvent by silica gel chromatography to obtain 4.44 g of Compound 126 (yield: 70%). Confirm the prepared compound by MS / FAB and 1 1H NMR. C 49 H 31 N: M + Calculated value: 633.25, found value: 633.15

[0592] Synthesis Example 14: Synthesis of Compound 133

[0593]

[0594] Synthesize Compound 133 in a manner substantially the same as that of Compound 126 except that N,9,9-triphenyl-9H-fluoren-2-amine is used instead of N-phenyl-[1,1'-biphenyl]-4-amine. Confirm the prepared compound by MS / FAB and 1 1H NMR. C 62 H 39 N: M +Calculated value: 797.31, found value: 797.21.

[0595] Synthesis Example 15: Synthesis of Compound 196

[0596]

[0597] Compound 196 was synthesized in a manner substantially the same as that of Compound 126, except that N-phenyl-4-(9-phenyl-9H-carbazol-3-yl)aniline was used instead of N-phenyl-[1,1'-biphenyl]-4-amine. The prepared compound was confirmed by MS / FAB and 1 H NMR. C 55 H 34 N2: M + Calculated value: 722.27, found value: 722.17.

[0598] 1H NMR and MS / FAB of the compounds synthesized according to the synthesis examples are shown in Table 1. 1 H NMR and MS / FAB of the compounds synthesized according to the synthesis examples are shown in Table 1.

[0599] Those skilled in the art can easily recognize and synthesize other compounds in addition to the compounds shown in Table 1 by referring to the above synthesis routes and source materials.

[0600] Table 1

[0601]

[0602]

[0603] Comparative Example 1

[0604] A glass substrate with 15 Ω / cm 2 ITO on it (manufactured by Corning) was cut into a size of 50 mm × 50 mm × 0.7 mm, ultrasonically treated with isopropyl alcohol and pure water for 5 minutes each, then irradiated with ultraviolet (UV) light for 30 minutes and exposed to ozone for cleaning. Then, the obtained glass substrate was loaded into a vacuum deposition apparatus.

[0605] 2-TNATA was vacuum deposited on the glass substrate to form a hole injection layer with a thickness of , and then, 4,4'-bis[N-(1-naphthyl)-N-phenylamino]biphenyl (hereinafter referred to as NPB) was vacuum deposited on the hole injection layer to form a hole transport layer with a thickness of .

[0606] 9,10-bis(naphthalen-2-yl)anthracene (hereinafter referred to as DNA), which serves as the blue host, and 4,4'-bis[2-(4-(N,N-diphenylamino)phenyl)vinyl]biphenyl (hereinafter referred to as DPAVBi), which serves as the blue fluorescent dopant, are co-deposited on the hole transport layer at a weight ratio of 98:2 to form an emission layer having the thickness of

[0607]

[0608] Alq3 is vacuum-deposited on the emission layer to form an electron transport layer having the thickness of LiF, which is an alkali metal halide, is vacuum-deposited on the electron transport layer to form an electron injection layer having the thickness of

[0609] Examples 1 to 15

[0610] Other organic light-emitting devices are fabricated in a manner substantially the same as in Comparative Example 1, except that the hole transport layer is formed using the compounds shown in Table 2 instead of NPB.

[0611] Comparative Examples 2 to 6

[0612] Organic light-emitting devices are fabricated in a manner substantially the same as in Comparative Example 1, except that compounds A, B, C, D, and E are used instead of NPB in forming the hole transport layer.

[0613]

[0614] Evaluation Examples

[0615] For the organic light-emitting devices fabricated according to Examples 1 to 15 and Comparative Examples 1 to 6, their performance (driving voltage, luminance, efficiency, and color coordinates) at a current density of 50 mA / cm 2 and the half-life (the time taken for the luminance to decrease to 50% of the initial value) at a current density of 100 mA / cm 2 are evaluated. The results are shown in Table 2.

[0616] Luminance: Power is supplied by a current-voltage meter (Keithley SMU 236) and measured using a luminance meter PR650.

[0617] Efficiency: Power supply was carried out through a current-voltage meter (Keithley SMU 236) and measurement was performed using a luminance meter PR650.

[0618] Table 2

[0619]

[0620]

[0621] As can be seen from Table 2, in the cases of Examples 1 to 15 including the condensed-ring compound according to an embodiment of the present disclosure as a hole transport material in an organic light-emitting device, compared with the organic light-emitting devices of Comparative Examples 1 to 6, the driving voltage of the organic light-emitting device is reduced, and the luminous efficiency and lifetime are increased.

[0622] For example, when the condensed-ring compound according to an embodiment of the present disclosure is used in an organic light-emitting device, excellent effects can be obtained in terms of driving voltage, efficiency, and / or lifetime.

[0623] An organic light-emitting device including the condensed-ring compound according to an embodiment of the present disclosure may have a low driving voltage, high efficiency, and / or long lifetime.

[0624] It should be understood that the embodiments described herein should be considered only in a descriptive sense and not for purposes of limitation. The description of a feature or aspect within each embodiment is generally to be considered applicable to other similar features or aspects in other embodiments. Although one or more embodiments have been described with reference to the accompanying drawings, those of ordinary skill in the art will understand that various changes in form and detail 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, the 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, The organic light-emitting device includes at least one condensed-ring compound represented by Formula 1: Wherein, in Formula 1 and Formula 2, X1 is C(R1), X2 is C(R2), X3 is C(R3), X4 is C(R4) or C(R x ), X5 is C(R5) or C(R x ), X6 is C(R6) or C(R x ), X7 is C(R7) or C(R x ), X8 is C(R8) or C(R x ), X9 is C(R9) or C(R x ), X 10 is C(R 10 ), or C(R x ), X 11 is C(R 11 ), or C(R x ), X 12 is C(R 12 ), X 13 is C(R 13 ), and X 14 is C(R 14 ), At least one selected from X4 to X 11 is C(R x ), and R x is a group represented by Formula 2 L1 to L3 are each independently selected from phenylene, s-indacenylene, indenylene, naphthylene, azulylene, heptalene, aceanthrenylene, acenaphthylene, fluorene, spirobifluorene, benzofluorene, phenalenylene, phenanthrene, anthracene, fluoranthene, benzo[9,10]phenanthrene, pyrene, biphenyl, tetracenylene, picene, perylene, pentaphene, hexacenylene, pyrrolyl, imidazolyl, pyrazolyl, pyridyl, pyrazinyl, pyrimidinyl, pyridazinyl, isoindolyl, indolyl, indazolyl, purinyl, quinolinyl, isoquinolinyl, benzoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, carbazolyl, benzosilole, phenanthridinyl, acridinyl, phenanthroline, phenazine, benzoxazolyl, benzimidazolyl, furyl, benzofuryl, thienyl, benzothienyl, thiazolyl, isothiazolyl, benzothiazolyl, isoxazolyl, oxazolyl, triazolyl, tetrazolyl, oxadiazolyl, triazinyl, isobenzoxazolyl, dibenzofuranyl, dibenzothiophenyl, benzocarbazolyl, dibenzocarbazolyl, and dibenzosilole; and Each is independently substituted with at least one selected from deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazino, hydrazono, C1-C 20 alkyl, C1-C 20 alkoxy, phenyl, cyclopentadienyl, indenyl, naphthyl, azulyl, heptaleneyl, indacenyl, acenaphthylenyl, fluorenyl, spirobifluorenyl, benzofluorenyl, phenalenyl, phenanthrenyl, anthracenyl, fluoranthenyl, benzo[9,10]phenanthrenyl, pyrenyl, -yl, tetraphenylenyl, picenyl, perylenyl, pentaphenylenyl, hexaphenylenyl, pyrrolyl, imidazolyl, pyrazolyl, pyridyl, pyrazinyl, pyrimidinyl, pyridazinyl, isoindolyl, indolyl, indazolyl, purinyl, quinolinyl, isoquinolinyl, benzoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, carbazolyl, benzosilolyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzoxazolyl, benzimidazolyl, furyl, benzofuryl, thienyl, benzothienyl, thiazolyl, isothiazolyl, benzothiazolyl, isoxazolyl, oxazolyl, triazolyl, tetrazolyl, oxadiazolyl, triazinyl, isobenzoxazolyl, dibenzofuranyl, dibenzothiophenyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, -Si(Q 31 )(Q 32 )(Q 33 ), -N(Q 31 )(Q 32 ), and -B(Q 31 )(Q 32 ), a phenylene, a cyclopentadienylene, an indenylene, a naphthylene, an azulylene, a heptaleneylene, an indacenylene, an acenaphthylenylene, a fluorenylene, a spirobifluorenylene, a benzofluorenylene, a phenalenylene, a phenanthrenylene, an anthracenylene, a fluoranthenylene, a benzo[9,10]phenanthrenylene, a pyrenylene, a -ylene, a tetraphenylenylene, a picenylene, a perylenylene, a pentaphenylenylene, a hexaphenylenylene, a pyrrolylene, an imidazolylene, a pyrazolylene, a pyridylene, a pyrazinylene, a pyrimidinylene, a pyridazinylene, an isoindolylene, an indolylene, an indazolylene, a purinylene, a quinolinylene, an isoquinolinylene, a benzoquinolinylene, a phthalazinylene, a naphthyridinylene, a quinoxalinylene, a quinazolinylene, a cinnolinylene, a carbazolylene, a benzosilolylene, a phenanthridinylene, an acridinylene, a phenanthrolinylene, a phenazinylene, a benzoxazolylene, a benzimidazolylene, a furylene, a benzofurylene, a thienylene, a benzothienylene, a thiazolylene, an isothiazolylene, a benzothiazolylene, an isoxazolylene, an oxazolylene, a triazolylene, a tetrazolylene, an oxadiazolylene, a triazinylene, an isobenzoxazolylene, a dibenzofuranylene, a dibenzothiophenylene, a benzocarbazolylene, a dibenzocarbazolylene, and a dibenzosilolylene, a1 to a3 are each independently an integer from 0 to 3, When a1 is 0, -(L1) a1 - is a single bond. When a2 is 0, -(L2) a2 - is a single bond, and when a3 is 0, -(L3) a3 - is a single bond Ar1 and Ar2 are each independently selected from cyclopentyl, cyclohexyl, cycloheptyl, cyclopentenyl, cyclohexenyl, phenyl, bicyclopentadienyl, indenyl, naphthyl, azulyl, heptaleneyl, indacenyl, acenaphthylenyl, fluorenyl, spirobifluorenyl, spirocyclopentane-fluorenyl, spirocyclohexane-fluorenyl, spirofluorene-benzofluorene, benzofluorene, dibenzofluorene, phenalenyl, phenanthrenyl, anthracenyl, fluoranthenyl, benzo[9,10]phenanthrenyl, pyrenyl, yl, tetraphenylenyl, picenyl, perylenyl, pentaphenylenyl, hexaphenylenyl, pyrrolyl, imidazolyl, pyrazolyl, pyridyl, pyrazinyl, pyrimidinyl, pyridazinyl, isoindolyl, indolyl, indazolyl, purinyl, quinolinyl, isoquinolinyl, benzoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, carbazolyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzoxazolyl, benzimidazolyl, furyl, benzofuryl, thienyl, benzothienyl, thiazolyl, isothiazolyl, benzothiazolyl, isoxazolyl, oxazolyl, triazolyl, tetrazolyl, oxadiazolyl, triazinyl, isobenzoxazolyl, dibenzofuryl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl, and dibenzosilolyl; Each is independently substituted with at least one selected from deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, nitro, amidino, hydrazino, hydrazono, C1-C 20 alkyl, C1-C 20 alkoxy, cyclopentyl, cyclohexyl, cycloheptyl, cyclopentenyl, cyclohexenyl, phenyl, bicyclopentadienyl, indenyl, naphthyl, azulyl, heptaleneyl, indacenyl, acenaphthylenyl, fluorenyl, spirobifluorenyl, spirocyclopentane-fluorenyl, spirocyclohexane-fluorenyl, spirofluorene-benzofluorene, benzofluorene, dibenzofluorene, phenalenyl, phenanthrenyl, anthracenyl, fluoranthenyl, benzo[9,10]phenanthrenyl, pyrenyl, yl, tetraphenyl, picenyl, perylenyl, pentaphenyl, hexaphenyl, pyrrolyl, imidazolyl, pyrazolyl, pyridyl, pyrazinyl, pyrimidinyl, pyridazinyl, isoindolyl, indolyl, indazolyl, purinyl, quinolinyl, isoquinolinyl, benzoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, carbazolyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzoxazolyl, benzimidazolyl, furyl, benzofuryl, thienyl, benzothienyl, thiazolyl, isothiazolyl, benzothiazolyl, isoxazolyl, oxazolyl, triazolyl, tetrazolyl, oxadiazolyl, triazinyl, isobenzoxazolyl, dibenzofuryl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, -Si(Q 31 )(Q 32 )(Q 33 ), -N(Q 31 )(Q 32 ), and -B(Q 31 )(Q 32 ), and at least one selected from cyclopentyl, cyclohexyl, cycloheptyl, cyclopentenyl, cyclohexenyl, phenyl, bicyclopentadienyl, indenyl, naphthyl, azulyl, heptaleneyl, indacenyl, acenaphthylenyl, fluorenyl, spirobifluorenyl, spirocyclopentane-fluorenyl, spirocyclohexane-fluorenyl, spirofluorene-benzofluorene, benzofluorene, dibenzofluorene, phenalenyl, phenanthrenyl, anthracenyl, fluoranthenyl, benzo[9,10]phenanthrenyl, pyrenyl, yl, tetraphenyl, picenyl, perylenyl, pentaphenyl, hexaphenyl, pyrrolyl, imidazolyl, pyrazolyl, pyridyl, pyrazinyl, pyrimidinyl, pyridazinyl, isoindolyl, indolyl, indazolyl, purinyl, quinolinyl, isoquinolinyl, benzoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, carbazolyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzoxazolyl, benzimidazolyl, furyl, benzofuryl, thienyl, benzothienyl, thiazolyl, isothiazolyl, benzothiazolyl, isoxazolyl, oxazolyl, triazolyl, tetrazolyl, oxadiazolyl, triazinyl, isobenzoxazolyl, dibenzofuryl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl, and dibenzosilolyl, b1 and b2 are each independently an integer from 1 to 5, R1 to R 14 are each independently selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, nitro, amidino, hydrazino, hydrazono, 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 fused polycyclic group, substituted or unsubstituted monovalent non-aromatic fused heteropolycyclic group, -Si(Q1)(Q2)(Q3), -N(Q1)(Q2), -B(Q1)(Q2), -C(=O)(Q1), -S(=O)2(Q1) and -P(=O)(Q1)(Q2), and 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 heteroaryl, at least one substituent of 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, hydrazino, hydrazono, C1-C 60 alkyl, C2-C 60 alkenyl, C2-C 60 alkynyl and C1-C 60 alkoxy; Each is independently substituted with at least one selected from deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazino, hydrazono, 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 fused polycyclic group, monovalent non-aromatic fused 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 ) 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, monovalent non-aromatic fused polycyclic group, and monovalent non-aromatic fused heteropolycyclic group; Each is independently substituted with at least one selected from deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, nitro, amidino, hydrazino, hydrazono, 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 fused polycyclic group, monovalent non-aromatic fused 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 ), and at least one selected from 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 fused polycyclic group and monovalent non-aromatic fused heteropolycyclic group; 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 ), Among them, Q1 to Q3, Q 11 to Q 13 , Q 21 to Q 23 and Q 31 to Q 33 are each independently selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amino, amidino, hydrazino, hydrazono, 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 and terphenyl, and * represents a bonding position to an adjacent atom.

2. 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 located between the first electrode and the emission layer and an electron transport region located 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 buffer layer, a hole blocking layer, an electron control layer, an electron transport layer, an electron injection layer, or any combination thereof.

3. The organic light emitting device according to claim 2, wherein, The hole transport region includes the at least one condensed-ring compound represented by Formula 1.

4. The organic light-emitting device according to claim 2, wherein: The hole transport region includes at least one selected from the hole injection layer and the hole transport layer, and The at least one selected from the hole injection layer and the hole transport layer includes the at least one condensed-ring compound represented by Formula 1.

5. The organic light-emitting device according to claim 1, the organic light-emitting device further includes at least one selected from a first cover layer located under the first electrode and facing the second electrode and a second cover layer located above the second electrode and facing the first electrode, The at least one selected from the first cover layer and the second cover layer includes the at least one condensed-ring compound represented by Formula 1.

6. The organic light emitting device according to claim 1, wherein, The emission layer includes the at least one condensed-ring compound represented by Formula 1.

7. The organic light-emitting device according to claim 6, wherein: The emission layer further includes a dopant, and the at least one condensed-ring compound is a host, and The amount of the at least one condensed-ring compound is greater than the amount of the dopant.

8. A condensed-ring compound, the condensed-ring compound being represented by Formula 1: Among them, In Formula 1 and Formula 2, X1 is C(R1), X2 is C(R2), X3 is C(R3), X4 is C(R4) or C(R x ), X5 is C(R5) or C(R x ), X6 is C(R6) or C(R x ), X7 is C(R7) or C(R x ), X8 is C(R8) or C(R x ), X9 is C(R9) or C(R x ), X 10 is C(R 10 ), or C(R x ), X 11 is C(R 11 ), or C(R x ), X 12 is C(R 12 ), X 13 is C(R 13 ), and X 14 is C(R 14 ), At least one selected from X4 to X 11 is C(R x ), and R x is a group represented by Formula 2, L1 to L3 are each independently selected from phenylene, s-indacenylene, indenylene, naphthylene, azulylene, heptalene, aceanthrenylene, acenaphthylene, fluorenylene, spirobifluorenylene, benzofluorenylene, phenalenylene, phenanthrenylene, anthracenylene, fluoranthenylene, benzo[9,10]phenanthrenylene, pyrenylene, yl, terphenylene, picene, perylene, pentaphene, hexaphene, pyrrolyl, imidazolyl, pyrazolyl, pyridyl, pyrazinyl, pyrimidinyl, pyridazinyl, isoindolyl, indolyl, indazolyl, purinyl, quinolinyl, isoquinolinyl, benzoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, carbazolyl, benzosilolyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzoxazolyl, benzimidazolyl, furyl, benzofuryl, thienyl, benzothienyl, thiazolyl, isothiazolyl, benzothiazolyl, isoxazolyl, oxazolyl, triazolyl, tetrazolyl, oxadiazolyl, triazinyl, isobenzoxazolyl, dibenzofuranyl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl and dibenzosilolyl; and Each is independently substituted with at least one selected from deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazino, hydrazono, C1-C 20 alkyl, C1-C 20 alkoxy, phenyl, cyclopentadienyl, indenyl, naphthyl, azulyl, heptaleneyl, indacenyl, acenaphthylenyl, fluorenyl, spirobifluorenyl, benzofluorenyl, phenalenyl, phenanthrenyl, anthracenyl, fluoranthenyl, benzo[9,10]phenanthrenyl, pyrenyl, yl, tetraphenylenyl, picenyl, perylenyl, pentaphenylenyl, hexaphenylenyl, pyrrolyl, imidazolyl, pyrazolyl, pyridyl, pyrazinyl, pyrimidinyl, pyridazinyl, isoindolyl, indolyl, indazolyl, purinyl, quinolinyl, isoquinolinyl, benzoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, carbazolyl, benzosilolyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzoxazolyl, benzimidazolyl, furyl, benzofuryl, thienyl, benzothienyl, thiazolyl, isothiazolyl, benzothiazolyl, isoxazolyl, oxazolyl, triazolyl, tetrazolyl, oxadiazolyl, triazinyl, isobenzoxazolyl, dibenzofuranyl, dibenzothiophenyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, -Si(Q 31 )(Q 32 )(Q 33 ), -N(Q 31 )(Q 32 ), and -B(Q 31 )(Q 32 ), a phenylene, a cyclopentadienylene, an indenylene, a naphthylene, an azulylene, a heptaleneylene, an indacenylene, an acenaphthylenylene, a fluorenylene, a spirobifluorenylene, a benzofluorenylene, a phenalenylene, a phenanthrenylene, an anthracenylene, a fluoranthenylene, a benzo[9,10]phenanthrenylene, a pyrenylene, a yl, a tetraphenylenylene, a picenylene, a perylenylene, a pentaphenylenylene, a hexaphenylenylene, a pyrrolylene, an imidazolylene, a pyrazolylene, a pyridylene, a pyrazinylene, a pyrimidinylene, a pyridazinylene, an isoindolylene, an indolylene, an indazolylene, a purinylene, a quinolinylene, an isoquinolinylene, a benzoquinolinylene, a phthalazinylene, a naphthyridinylene, a quinoxalinylene, a quinazolinylene, a cinnolinylene, a carbazolylene, a benzosilolylene, a phenanthridinylene, an acridinylene, a phenanthrolinylene, a phenazinylene, a benzoxazolylene, a benzimidazolylene, a furylene, a benzofurylene, a thienylene, a benzothienylene, a thiazolylene, an isothiazolylene, a benzothiazolylene, an isoxazolylene, an oxazolylene, a triazolylene, a tetrazolylene, an oxadiazolylene, a triazinylene, an isobenzoxazolylene, a dibenzofuranylene, a dibenzothiophenylene, a benzocarbazolylene, a dibenzocarbazolylene, and a dibenzosilolylene, a1 to a3 are each independently an integer from 0 to 3, When a1 is 0, -(L1) a1 - is a single bond. When a2 is 0, -(L2) a2 - is a single bond, and when a3 is 0, -(L3) a3 - is a single bond Ar1 and Ar2 are each independently selected from cyclopentyl, cyclohexyl, cycloheptyl, cyclopentenyl, cyclohexenyl, phenyl, bicyclopentadienyl, indenyl, naphthyl, azulyl, heptaleneyl, indacenyl, acenaphthylenyl, fluorenyl, spirobifluorenyl, spirocyclopentane-fluorenyl, spirocyclohexane-fluorenyl, spirofluorene-benzofluoreneyl, benzofluoreneyl, dibenzofluoreneyl, phenalenyl, phenanthrenyl, anthracenyl, fluoranthenyl, benzo[9,10]phenanthrenyl, pyrenyl, anthryl, tetracenyl, picenyl, perylenyl, pentaphenylenyl, hexacenyl, pyrrolyl, imidazolyl, pyrazolyl, pyridyl, pyrazinyl, pyrimidinyl, pyridazinyl, isoindolyl, indolyl, indazolyl, purinyl, quinolinyl, isoquinolinyl, benzoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, carbazolyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzoxazolyl, benzimidazolyl, furyl, benzofuranyl, thienyl, benzothienyl, thiazolyl, isothiazolyl, benzothiazolyl, isoxazolyl, oxazolyl, triazolyl, tetrazolyl, oxadiazolyl, triazinyl, isobenzoxazolyl, dibenzofuranyl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl, and dibenzosilolyl; Each is independently substituted with at least one selected from deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazino, hydrazono, C1-C 20 alkyl, C1-C 20 alkoxy, cyclopentyl, cyclohexyl, cycloheptyl, cyclopentenyl, cyclohexenyl, phenyl, bicyclopentadienyl, indenyl, naphthyl, azulyl, heptaleneyl, indacenyl, acenaphthylenyl, fluorenyl, spirobifluorenyl, spirocyclopentane-fluorenyl, spirocyclohexane-fluorenyl, spirofluorene-benzofluorene, benzofluorene, dibenzofluorene, phenalenyl, phenanthrenyl, anthracenyl, fluoranthenyl, benzo[9,10]phenanthrenyl, pyrenyl, yl, tetraphenylenyl, picenyl, perylenyl, pentaphenylenyl, hexaphenylenyl, pyrrolyl, imidazolyl, pyrazolyl, pyridyl, pyrazinyl, pyrimidinyl, pyridazinyl, isoindolyl, indolyl, indazolyl, purinyl, quinolinyl, isoquinolinyl, benzoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, carbazolyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzoxazolyl, benzimidazolyl, furyl, benzofuryl, thienyl, benzothienyl, thiazolyl, isothiazolyl, benzothiazolyl, isoxazolyl, oxazolyl, triazolyl, tetrazolyl, oxadiazolyl, triazinyl, isobenzoxazolyl, dibenzofuryl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, -Si(Q 31 )(Q 32 )(Q 33 ), -N(Q 31 )(Q 32 ), and -B(Q 31 )(Q 32 ), and at least one selected from cyclopentyl, cyclohexyl, cycloheptyl, cyclopentenyl, cyclohexenyl, phenyl, bicyclopentadienyl, indenyl, naphthyl, azulyl, heptaleneyl, indacenyl, acenaphthylenyl, fluorenyl, spirobifluorenyl, spirocyclopentane-fluorenyl, spirocyclohexane-fluorenyl, spirofluorene-benzofluorene, benzofluorene, dibenzofluorene, phenalenyl, phenanthrenyl, anthracenyl, fluoranthenyl, benzo[9,10]phenanthrenyl, pyrenyl, yl, tetraphenylenyl, picenyl, perylenyl, pentaphenylenyl, hexaphenylenyl, pyrrolyl, imidazolyl, pyrazolyl, pyridyl, pyrazinyl, pyrimidinyl, pyridazinyl, isoindolyl, indolyl, indazolyl, purinyl, quinolinyl, isoquinolinyl, benzoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, carbazolyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzoxazolyl, benzimidazolyl, furyl, benzofuryl, thienyl, benzothienyl, thiazolyl, isothiazolyl, benzothiazolyl, isoxazolyl, oxazolyl, triazolyl, tetrazolyl, oxadiazolyl, triazinyl, isobenzoxazolyl, dibenzofuryl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl, and dibenzosilolyl, b1 and b2 are each independently an integer from 1 to 5, R1 to R 14 are each independently selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, nitro, amidino, hydrazino, hydrazono, 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 fused polycyclic group, substituted or unsubstituted monovalent non-aromatic fused heteropolycyclic group, -Si(Q1)(Q2)(Q3), -N(Q1)(Q2), -B(Q1)(Q2), -C(=O)(Q1), -S(=O)2(Q1) and -P(=O)(Q1)(Q2), The substituted C1-C 60 alkyl group, the substituted C2-C 60 alkenyl group, the substituted C2-C 60 alkynyl group, the substituted C1-C 60 alkoxy group, the substituted C3-C 10 cycloalkyl group, the substituted C1-C 10 heterocycloalkyl group, the substituted C3-C 10 cycloalkenyl group, the substituted C1-C 10 heterocycloalkenyl group, the substituted C6-C 60 aryl group, the substituted C6-C 60 aryloxy group, the substituted C6-C 60 arylthio group, the substituted C1-C 60 At least one substituent of 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, hydroxy, cyano, nitro, amidino, hydrazino, hydrazono, C1-C 60 alkyl, C2-C 60 alkenyl, C2-C 60 alkynyl and C1-C 60 alkoxy; Each is independently substituted with at least one selected from deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, nitro, amidino, hydrazino, hydrazono, 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 fused polycyclic group, monovalent non-aromatic fused 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 ) 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, monovalent non-aromatic fused polycyclic group, and monovalent non-aromatic fused heteropolycyclic group; Each is independently substituted with at least one selected from deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, nitro, amidino, hydrazino, hydrazono, 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 fused polycyclic group, monovalent non-aromatic fused 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 ), and at least one selected from 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 fused polycyclic group and monovalent non-aromatic fused heteropolycyclic group; 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 ), Among them, Q1 to Q3, Q 11 to Q 13 , Q 21 to Q 23 and Q 31 to Q 33 are each independently selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amino, amidino, hydrazino, hydrazono, 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 fused polycyclic group, monovalent non-aromatic fused heteropolycyclic group, biphenyl and terphenyl; and * represents a bonding position to an adjacent atom.

9. The condensed-ring compound according to claim 8, wherein: L1 to L3 are each independently a group represented by one selected from Formula 3-1 to Formula 3-43: Wherein, in Formula 3-1 to Formula 3-43, Y1 is O, S, C(Z8)(Z9), N(Z5), or Si(Z6)(Z7), Z1 to Z9 are each independently selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazino, hydrazono, carboxyl or its salt, sulfonic acid group or its salt, phosphoric acid group or its salt, C1-C 20 alkyl, C1-C 20 alkoxy, phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthryl, anthracenyl, pyrenyl, group, pyridyl, pyrazinyl, pyrimidinyl, pyridazinyl, quinolinyl, isoquinolinyl, quinoxalinyl, quinazolinyl, carbazolyl, dibenzofuranyl, dibenzothiophenyl, triazinyl, benzimidazolyl, phenanthrolinyl, -Si(Q 31 )(Q 32 )(Q 33 ), -N(Q 31 )(Q 32 ), and -B(Q 31 )(Q 32 ), Q 31 to Q 33 are each independently selected from C1-C 20 alkyl, C1-C 20 alkoxy, phenyl, biphenyl, terphenyl, naphthyl, and pyridyl, d2 is an integer from 0 to 2, d3 is an integer from 0 to 3, d4 is an integer from 0 to 4, d5 is an integer from 0 to 5, d6 is an integer from 0 to 6, d8 is an integer from 0 to 8, and * and *' each represent a bonding position to an adjacent atom.

10. The ring-shrinking compound according to claim 8, wherein, a1 to a3 are each independently 0 or 1.

11. The fused-ring compound according to claim 8, wherein: Ar1 and Ar2 are each independently selected from the groups represented by Formula 5-1 to Formula 5-80: Wherein, in Formula 5-1 to Formula 5-80, Y 31 is O, S, C(Z 38 )(Z 39 ), N(Z 35 ) or Si(Z 36 )(Z 37 ), Z 31 from Z to 39 are each independently selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, nitro, amidino, hydrazino, hydrazono, C1-C 20 alkyl, C1-C 20 alkoxy, cyclopentyl, cyclohexyl, cycloheptyl, cyclopentenyl, cyclohexenyl, phenyl, biphenyl, naphthyl, fluorenyl, spirobifluorenyl, spirofluorene-benzofluorene, benzofluorene, dibenzofluorene, phenalenyl, phenanthrenyl, anthracenyl, fluoranthenyl, benzo[9,10]phenanthrenyl, pyridyl, pyrazinyl, pyrimidinyl, quinolinyl, isoquinolinyl, benzoquinolinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, carbazolyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, triazinyl, dibenzofuranyl, dibenzothiophenyl, dibenzosilolyl, -Si(Q 31 )(Q 32 )(Q 33 ), -N(Q 31 )(Q 32 ) and -B(Q 31 )(Q 32 ), e2 is selected from 1 and 2, e3 is an integer from 1 to 3, e4 is an integer from 1 to 4, e5 is an integer from 1 to 5, e6 is an integer from 1 to 6, e7 is an integer from 1 to 7, e9 is an integer from 1 to 9, Q 31 to Q 33 are each independently selected from C1-C 20 alkyl, C1-C 20 alkoxy, phenyl, biphenyl, terphenyl, naphthyl and pyridyl, and * represents the bonding position to the adjacent atom.

12. The fused-ring compound according to claim 8, wherein: Ar1 and Ar2 are each independently selected from the groups represented by Formula 6-1 to Formula 6-40: Wherein, in Formula 6-1 to Formula 6-40, "Ph” represents a phenyl group, and * represents the bonding position to the adjacent atom.

13. The fused-ring compound according to claim 8, wherein: In Formula 2, the group represented by *-(L1) a1 -(Ar1) b1 and the group represented by *-(L2) a2 -(Ar2) b2 are each independently selected from the groups represented by Formulae 7-1 to 7-37: Wherein, in Formula 7-1 to Formula 7-37, "Ph” represents a phenyl group, and * represents the bonding position to the adjacent atom.

14. The fused-ring compound according to claim 8, wherein: One selected from X4 to X 11 is C(R x ), while the others among X4 to X 11 are not C(R x ).

15. The ring-shrinking compound according to claim 8, wherein, The fused-ring compound is represented by one selected from Formula 1-1 to Formula 1-4: Wherein, in Formula 1-1 to Formula 1-4, X1 is C(R1), X2 is C(R2), X3 is C(R3), X4 is C(R4), X5 is C(R5), X6 is C(R6), X7 is C(R7), X8 is C(R8), X9 is C(R9), X 10 is C(R 10 ), X 11 is C(R 11 ), X 12 is C(R 12 ), X 13 is C(R 13 ), and X 14 is C(R 14 ), and L1 to L3, a1 to a3, Ar1, Ar2, b1, b2, and R1 to R 14 are each independently the same as described in Formulas 1 and 2.

16. The fused-ring compound according to claim 8, wherein: The fused-ring compound is represented by one selected from Formula 1-1A to Formula 1-4A: Wherein, in Formula 1-1A to Formula 1-4A, L1 to L3, a1 to a3, Ar1, Ar2, b1, b2, and R1 to R 14 are each independently the same as described in Formulas 1 and 2 combined.

17. The ring-shrinking compound according to claim 8, wherein, The fused-ring compound is selected from Compound 1 to Compound 225:

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