Condensed cyclic compound and organic light-emitting device including the same

Abstract

This invention provides a condensed ring compound and an organic light-emitting device comprising the same. The organic light-emitting device includes a first electrode, a second electrode, and an organic layer disposed between the first electrode and the second electrode. The organic layer comprises a condensed ring compound represented by Formula 1: in Formula 1, A11 is a C1-C60 heterocyclic group, A12 is a C5-C60 carbocyclic group or a C1-C60 heterocyclic group, X11 is O or S, X12 is C, X13 is selected from N, C, and C(R13), and X14 is selected from N, C, and C(R14), and X13 and X14 are linked by a single bond or a double bond.

Description

Condensed Ring Compound and Organic Light-Emitting Device Comprising the Same This application is a divisional application of Taiwan Patent Application No. 106133531. Cross-Reference to Related Applications This application claims the benefit of Korean Patent Application No. 10-2016-0127147, filed with the Korean Intellectual Property Office on September 30, 2016, the entire disclosure of which is incorporated herein by reference. Exemplary embodiments of the present disclosure relate to a condensed ring compound and an organic light-emitting device comprising the same. An organic light-emitting device is a self-luminous device that produces full-color images and has advantages such as a wide viewing angle, high contrast, short response time, and excellent characteristics in terms of brightness, driving voltage, and response speed. Examples of an organic light-emitting device may 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, electrons provided from the second electrode may move toward the emission layer through the electron transport region, and when the holes and electrons meet in the emission layer, they may recombine to generate excitons. These excitons transition from an excited state to a ground state, thereby generating light. Exemplary embodiments of the present disclosure provide a condensed ring compound and an organic light-emitting device comprising the same. According to an exemplary embodiment of the present disclosure, the condensed ring compound is represented by Chemical Formula 1: <Chemical Formula 1> In Chemical Formula 1, A 11 may be C 1 -C 60 heterocyclic group, A 12 may be C 5 -C 60 carbocyclic group or C 1 -C 60 heterocyclic group, X 11 may be O or S, X 12 may be C, X 13may be selected from N, C and C(R 13 ), X 14 may be selected from N, C and C(R 14 ), X 13 and X 14 may be linked via a single bond or a double bond, and R 11 and R 12 may each independently be selected from the groups represented by *-(L 11 ), a11 -(Ar 11 )c 11 a hydrogen, deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, a substituted or unsubstituted C 1 -C 60 alkyl, a substituted or unsubstituted C 2 -C 60 alkenyl, a substituted or unsubstituted C 2 -C 60 alkynyl, a substituted or unsubstituted C 1 -C 60 alkoxy, a substituted or unsubstituted C 3 -C 10 cycloalkyl, a substituted or unsubstituted C 1 -C 10 heterocycloalkyl, a substituted or unsubstituted C 3 -C 10Cycloalkenyl, substituted or unsubstituted C 2 -C 10 Heterocycloalkenyl, substituted or unsubstituted C 6 -C 60 Aryl, substituted or unsubstituted C 6 -C 60 Aryloxy, substituted or unsubstituted C 6 -C 60 Arylthio, substituted or unsubstituted C 1 -C 60 Heteroaryl, substituted or unsubstituted C 1 -C 60 Heteroaryloxy group, substituted or unsubstituted C 1 -C 60 Heteroarylthio group, substituted or unsubstituted monovalent non-aromatic fused polycyclic group, substituted or unsubstituted monovalent non-aromatic fused heteropolycyclic group, -Si(Q 1 )(Q 2 )(Q 3 )、-N(Q 1 )(Q 2 )、-B(Q 1 )(Q 2 )、-C(=O)(Q 1 )、-S(=O)(Q 1 )、-S(=O) 2 (Q 1 )、-P(=O)(Q 1)(Q 2 ) and -P(=S)(Q 1 )(Q 2 ), and R 11 and R 12 at least one of which is a group represented by *-(L 11 )) a11 -(Ar 11 )c 11 group. b11 and b12 can each independently be selected from 1, 2, 3, 4, 5, 6, 7, 8, 9, and 10. L 11 can be selected from a single bond, a substituted or unsubstituted C 5 -C 60 carbocyclic group, and a substituted or unsubstituted C 1 -C 60 heterocyclic group. a11 can be selected from 0, 1, 2, 3, and 4. Ar 11 can be selected from -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, formamido, hydrazino, hyrazono, a substituted or unsubstituted C 1 -C 60 alkyl group, a substituted or unsubstituted C 2 -C 60 alkenyl group, a substituted or unsubstituted C 2 -C 60 alkynyl group, a substituted or unsubstituted C 1 -C 60 alkoxy group, a substituted or unsubstituted C 3 -C 10 Cycloalkyl, substituted or unsubstituted C 1 -C 10 Heterocycloalkyl, substituted or unsubstituted C 3 -C 10 Cycloalkenyl, substituted or unsubstituted C 2 -C 10 Heterocycloalkenyl, substituted or unsubstituted C 6 -C 60 Aryl, substituted or unsubstituted C 6 -C 60 Aryloxy, substituted or unsubstituted C 6 -C 60 Arylthio, substituted or unsubstituted C 1 -C 60 Heteroaryl, substituted or unsubstituted C 1 -C 60 Heteroaryloxy, substituted or unsubstituted C 1 -C 60 Heteroarylthio, substituted or unsubstituted monovalent non-aromatic fused polycyclic group, substituted or unsubstituted monovalent non-aromatic fused heteropolycyclic group, -Si(Q 1 )(Q 2 )(Q 3 )、-N(Q 1 )(Q 2 )、-B(Q 1 )(Q 2 )、-C(=O)(Q 1 )、-S(=O)(Q 1 ), -S(=O) 2 (Q 1 ), -P(=O)(Q 1 )(Q 2 ) and -P(=S)(Q 1 )(Q 2 ), c11 can be independently selected from 1, 2, 3, 4, 5, and 6. R 13 , R 14 and Q 1 to Q 3 can each independently be selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, formamido, hydrazino, hyrazono, substituted or unsubstituted C 1 -C 60 alkyl, substituted or unsubstituted C 2 -C 60 alkenyl, substituted or unsubstituted C 2 -C 60 alkynyl, substituted or unsubstituted C 1 -C 60 alkoxy, substituted or unsubstituted C 3 -C 10 cycloalkyl, substituted or unsubstituted C 1 -C 10 heterocycloalkyl, substituted or unsubstituted C 3 -C 10 cycloalkenyl, substituted or unsubstituted C 2 -C 10Heterocyclic alkenyl, substituted or unsubstituted C 6 -C 60 Aryl, substituted or unsubstituted C 6 -C 60 Aryloxy, substituted or unsubstituted C 6 -C 60 Arylthio, substituted or unsubstituted C 1 -C 60 Heteroaryl, substituted or unsubstituted C 1 -C 60 Heteroaryloxy, substituted or unsubstituted C 1 -C 60 Heteroarylthio, substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group, and * represents the bonding site to the adjacent atom. According to an exemplary embodiment of the present disclosure, an organic light-emitting device includes: a first electrode; a second electrode; an organic layer disposed between the first electrode and the second electrode, the organic layer including a light-emitting layer, wherein the light-emitting layer may include a condensed ring compound represented by Chemical Formula 1. According to an exemplary embodiment of the present disclosure, an organic light-emitting device includes: a first electrode; a second electrode; an organic layer disposed between the first electrode and the second electrode, the organic layer including a condensed ring compound, wherein the condensed ring compound may include a multicyclic structure having a bicyclic structure containing two fused 5-membered heterocycles, one of the two fused 5-membered heterocycles may include two N atoms as heteroatoms, the other of the two fused 5-membered heterocycles may include an O atom or an S atom as a heteroatom, the multicyclic structure may include a tricyclic structure, a tetracyclic structure or a polycyclic structure of a higher order, at least one hydrogen in the multicyclic structure may be substituted by F, Cl, Br, I, a hydroxyl group, a cyano group, a nitro group, a formamidyl group, a hydrazino group, a hyponitrous group or an organic substituent, and the organic substituent may include at least one C atom and optionally include at least one of N, S, O, P, Si, B, F, Cl, Br and I atoms. The present disclosure will now be described more fully with reference to the accompanying drawings that show exemplary embodiments of the present disclosure. However, the present disclosure may be embodied in different forms and should not be construed as limited to the specific exemplary embodiments described herein; rather, these exemplary embodiments of the present disclosure are provided so that the present disclosure will be thorough and complete, and will fully convey the concept of the present disclosure to those of ordinary skill in the relevant art. Hereinafter, exemplary embodiments of the present disclosure will be described in detail with reference to the accompanying drawings, and in the drawings, like reference numerals refer to like elements, and redundant explanations thereof will not be provided. As used herein, unless the context clearly indicates otherwise, the singular forms "a", "an", and "the" are also intended to include the plural forms. It will be further understood that the terms "comprises" and / or "comprising" as used in this specification specifically refer to the presence of the stated features or components, but do not exclude the presence or addition of one or more other features and / or components. It will be further understood that when a layer, region, or component is referred to as "on / onto" another layer, region, or component, it can be formed directly or indirectly on the other layer, region, or component. That is, for example, intermediate layers, regions, or components may exist. The condensed ring compound of the exemplary embodiment of the present disclosure is represented by the following Chemical Formula 1: <Chemical Formula 1> . A in Chemical Formula 1 11 may be C 1 -C 60 heterocyclic group. In the exemplary embodiment of the present disclosure, A in Chemical Formula 1 11may be selected from a pyrrolidine group, a dihydropyrrole group, an isoindoline group, a piperidine group, a tetrahydropyridine group, a dihydropyridine group, a tetrahydroisoquinoline group, a dihydroisoquinoline group, an imidazole group, a pyrazole group, a thiazole group, an isothiazole group, an oxazole group, an isoxazole group, a pyridine group, a pyrazine group, a pyrimidine group, a quinoline group, an isoquinoline group, a benzoquinoline group, a quinoxaline group, a quinazoline group, a benzimidazole group, a benzothiazole group, a benzisothiazole group, a benzoxazole group, a benzisoxazole group, a triazine group, a tetrazine group, and an azacarbazole group, but the disclosure is not limited thereto. In an exemplary embodiment of the disclosure, A in Chemical Formula 1 11 may be selected from a piperidine group, a tetrahydropyridine group, a dihydropyridine group, a tetrahydroisoquinoline group, a dihydroisoquinoline group, a pyridine group, a pyrazine group, a pyrimidine group, a quinoline group, an isoquinoline group, a benzoquinoline group, a quinoxaline group, a quinazoline group, a triazine group, a tetrazine group, and an azacarbazole group, but the disclosure is not limited thereto. In an exemplary embodiment of the disclosure, A in Chemical Formula 1 11 It may be selected from piperidinyl, tetrahydropyridinyl, dihydropyridinyl, pyridinyl, pyrrolo[1,2-a]pyridyl, pyrimidinyl, triazolo[1,5-a]pyridyl, and tetrazolo[1,5-a]pyridyl, but the disclosure is not limited thereto. A in Chemical Formula 1 12 may be C 5 -C 60 a carbocyclic group or C 1 -C 60 a heterocyclic group. In an exemplary embodiment of the disclosure, A in Chemical Formula 1 12 may be selected from pyrrolidinyl, dihydropyrrolyl, isoindolinyl, piperidinyl, tetrahydropyridinyl, dihydropyridinyl, tetrahydroisoquinolinyl, dihydroisoquinolinyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, pyridinyl, pyrrolo[1,2-a]pyridyl, pyrimidinyl, pyridazinyl, quinolinyl, isoquinolinyl, benzoquinolinyl, quinoxalinyl, quinazolinyl, carbazolyl, azacarbazolyl, benzimidazolyl, benzothiazolyl, benzoisothiazolyl, benzoxazolyl, benzoisoxazolyl, triazolyl, tetrazolyl, thiadiazolyl, oxadiazolyl, triazolo[1,5-a]pyridyl, tetrazolo[1,5-a]pyridyl, benzene group, naphthalene group, fluorene group, spiro-bifluorene group, indene group, pyrrole group, thiophene group, furan group, benzofuran group, benzothiophene group, dibenzofuran group, and dibenzothiophene group, but the disclosure is not limited thereto. In an exemplary embodiment of the disclosure, A in Chemical Formula 1 12may be selected from piperidinyl, tetrahydropyridinyl, dihydropyridinyl, tetrahydroisoquinolinyl, dihydroisoquinolinyl, pyridinyl, pyrrolo[1,2-a]pyridyl, pyrimidinyl, pyrido[1,2-a]pyridyl, quinolinyl, isoquinolinyl, benzoquinolinyl, quinoxalinyl, quinazolinyl, carbazolyl, azacarbazolyl, triazolo[1,5-a]pyridyl, tetrazolo[1,5-a]pyridyl, phenyl, naphthyl, fluorenyl, spirobifluorenyl, indenyl, benzofuranyl, benzothiophenyl, dibenzofuranyl, and dibenzothiophenyl, but the disclosure is not limited thereto. In an exemplary embodiment of the disclosure, A in Formula 1 12 may be selected from piperidinyl, tetrahydropyridinyl, dihydropyridinyl, pyridinyl, pyrrolo[1,2-a]pyridyl, pyrimidinyl, pyrido[1,2-a]pyridyl, triazolo[1,5-a]pyridyl, tetrazolo[1,5-a]pyridyl, and phenyl, but the disclosure is not limited thereto. X in Formula 1 11 may be O or S. X in Formula 1 12 may be C. X in Formula 1 13 may be selected from N, C, and C(R 13 ), where R 13 may be the same as those described below. For example, X in Formula 1 13 may be C, but the disclosure is not limited thereto. X in Formula 1 14 may be selected from N, C, and C(R 14 ), where R 14 may be the same as those described below. For example, X in Formula 1 14 may be C, but the disclosure is not limited thereto. In an exemplary embodiment of the disclosure, in Formula 1, X 13 may be C and X 14 may be C, but the disclosure is not limited thereto. X in Formula 1 13 and X 14 may be linked by a single bond or a double bond. In an exemplary embodiment of the present disclosure, Chemical Formula 1 may include a polycyclic structure, and a bicyclic structure of two fused 5-membered heterocycles in the polycyclic structure. One of the two fused 5-membered heterocycles may include two N atoms as heteroatoms, and the other of the two fused 5-membered heterocycles may include an O atom or an S atom as a heteroatom. The polycyclic structure may include a tricyclic structure, a tetracyclic structure, or a polycyclic structure with a higher number of rings. When X in Chemical Formula 1 13 and X 14 are linked via a double bond, the two fused 5-membered heterocycles may become two fused 5-membered heteroaromatic rings. For example, an imidazole heteroaromatic ring may be fused with a furan heteroaromatic ring or a thiophene heteroaromatic ring to form a bicyclic structure that is part of Chemical Formula 1. R in Chemical Formula 1 11 and R 12 may each independently be selected from the group represented by *-(L 11 ) a11 -(Ar 11 )c 11 a group represented by, hydrogen, deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, a formamido group, a hydrazino group, a hydrazo group, a substituted or unsubstituted C 1 -C 60 alkyl, a substituted or unsubstituted C 2 -C 60 alkenyl, a substituted or unsubstituted C 2 -C 60 alkynyl, a substituted or unsubstituted C 1 -C 60 alkoxy, a substituted or unsubstituted C 3 -C 10 cycloalkyl, a substituted or unsubstituted C 1 -C 10 heterocycloalkyl, a substituted or unsubstituted C 3-C 10 Cycloalkenyl, substituted or unsubstituted C 2 -C 10 Heterocycloalkenyl, substituted or unsubstituted C 6 -C 60 Aryl, substituted or unsubstituted C 6 -C 60 Aryloxy, substituted or unsubstituted C 6 -C 60 Arylthio, substituted or unsubstituted C 1 -C 60 Heteroaryl, substituted or unsubstituted C 1 -C 60 Heteroaryloxy, substituted or unsubstituted C 1 -C 60 Heteroarylthio, substituted or unsubstituted monovalent non-aromatic fused polycyclic group, substituted or unsubstituted monovalent non-aromatic fused heteropolycyclic group, -Si(Q 1 )(Q 2 )(Q 3 )、-N(Q 1 )(Q 2 )、-B(Q 1 )(Q 2 )、-C(=O)(Q 1 )、-S(=O)(Q 1 )、-S(=O) 2 (Q 1 )、-P(=O)(Q 1 )(Q 2 ) and -P(=S)(Q 1 )(Q 2 ) and R 11 and R 12 at least one of which may be a group represented by *-(L 11 ) a11 -(Ar 11 )c 11 group. Q 1 to Q 3 may each independently be selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, formamido, hydrazino, hyrazono, substituted or unsubstituted C 1 -C 60 alkyl, substituted or unsubstituted C 2 -C 60 alkenyl, substituted or unsubstituted C 2 -C 60 alkynyl, substituted or unsubstituted C 1 -C 60 alkoxy, substituted or unsubstituted C 3 -C 10 cycloalkyl, substituted or unsubstituted C 1 -C 10 heterocycloalkyl, substituted or unsubstituted C 3 -C 10 cycloalkenyl, substituted or unsubstituted C 2 -C 10 heterocycloalkenyl, substituted or unsubstituted C 6 -C 60 Aryl, substituted or unsubstituted C 6 -C 60 Aryloxy, substituted or unsubstituted C 6 -C 60 Arylthio, substituted or unsubstituted C 1 -C 60 Heteroaryl, substituted or unsubstituted C 1 -C 60 Heteroaryloxy, substituted or unsubstituted C 1 -C 60 Heteroarylthio, substituted or unsubstituted monovalent non-aromatic fused polycyclic group, substituted or unsubstituted monovalent non-aromatic fused heteropolycyclic group, and L 11 , a11, Ar 11 And c11 can be the same as the following. In the exemplary embodiments of the present disclosure, R in Formula 1 11 And R 12 Can each independently be selected from: The group represented by *-(L 11 ) a11 -(Ar 11 )c 11 The group represented, hydrogen, deuterium, -F, -Cl, -Br, -I, cyano, C 1 -C 20 Alkyl and C 1 -C 20 Alkoxy; Each substituted by at least one selected from deuterium, -F, -Cl, -Br, -I, cyano, phenyl, and biphenyl group C 1 -C 20 Alkyl and C 1 -C 20 Alkoxy; cyclopentyl group, cyclohexyl group, cycloheptyl group, cyclopentenyl group, cyclohexenyl group, phenyl, biphenyl, terphenyl group, pentalenyl group, indenyl group, naphthyl group, azulenyl group, indacenyl group, acenaphthyl group, fluorenyl group, spiro-bifluorenyl group, benzofluorenyl group, dibenzofluorenyl group, phenalenyl group, phenanthrenyl group, anthracenyl group, fluoranthenyl group, triphenylenyl group, pyrenyl group, chrysenyl group, perylenyl group, pentacenyl group, pyrrolyl group, thienyl group, furanyl group, silolyl group, imidazolyl group, pyrazolyl group, thiazolyl group, isothiazolyl group, oxazolyl group, isoxazolyl group, pyridinyl group, pyrazinyl group, pyrimidinyl group, pyridazinyl group, indolyl group, isoindolyl group, indazolyl group, purinyl group, quinolinylgroup), isoquinolinyl group, benzoquinolinyl group, benzoisoquinolinyl, phthalazinyl group, naphthyridinyl group, quinoxalinyl group, benzoquinoxalinyl group, quinazolinyl group, benzoquinazolinyl group, cinnolinyl group, phenanthridinyl group, acridinyl group, phenanthrolinyl group, phenazinyl group, benzimidazolyl group, benzofuranyl group, benzothienyl group, benzosilolyl group, benzothiazolyl group, benzoisothiazolyl group, benzoxazolyl group, benzoisoxazolyl group, triazolyl group, tetrazolyl group, thiadiazolyl group, oxadiazolyl group, triazinyl group, carbazolyl group, dibenzofuranyl group, dibenzothienyl group, dibenzosilolyl group, benzocarbazolyl group, naphthobenzofuranyl group, naphthobenzothienyl group, naphtobenzosilolyl group, dibenzocarbazolylgroup), dinaphthofuranyl group, dinaphthothienyl group, dinaphthosilolyl group, imidazopyridinyl group, imidazopyrimidinyl group, oxazolopyridinyl group, thiazolopyridinyl group, benzonaphthyridinyl group, azafluorenyl group, azaspiro - bifluorenyl group, azacarbazolyl group, azadibenzofuranyl group, azadibenzothienyl group, azadibenzosilolyl group, indenopyrrolyl group, indolopyrrolyl group, indenocarbazolyl group, and indolocarbazolyl group; each independently selected from deuterium, -F, -Cl, -Br, -I, cyano, C 1 -C 20 alkyl, C 1 -C 20Alkoxy, cyclopentyl, cyclohexyl, cycloheptyl, cyclopentenyl, cyclohexenyl, phenyl, biphenyl, terphenyl, bicyclopentadienyl, indenyl, naphthyl, azulenyl, dicyclopentadienylphenyl, acenaphthyl, fluorene, spirobifluorene, benzofluorenyl, dibenzofluorenyl, perylenyl, phenanthryl, anthracenyl, propadienylfluorenyl, triphenylene, pyrenyl, viologenyl, perylenyl, condensed pentaphenyl, pyrrolyl, thienyl, furyl, silolyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, pyridyl, pyrazinyl, pyrimidinyl, pyridazinyl, indolyl, isoindolyl, indazolyl, purinyl, quinolinyl, isoquinolinyl, benzoquinolinyl, benzoisoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, benzoquinoxalinyl, quinazolinyl, benzoquinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, benzofuranyl, benzothienyl, benzosilolyl, benzothiazolyl, benzisothiazolyl, benzoxazolyl, benzisoxazolyl, triazolyl, tetrazolyl, thiadiazolyl, oxadiazolyl, triazinyl, carbazolyl, dibenzofuranyl, dibenzothienyl, dibenzosilolyl, benzocarbazolyl, naphthobenzofuranyl, naphthobenzothienyl, naphthobenzosilolyl, dibenzocarbazolyl, dinaphthofuranyl, dinaphthothienyl, dinaphthosilolyl, imidazopyridyl, imidazopyrimidinyl, oxazolopyridyl, thiazolopyridyl, benzonaphthyridinyl, azafuranyl, azaspirobifuranyl, azacarbazolyl, azadibenzofuranyl, azadibenzothienyl, azadibenzosilolyl, indolopyrrolyl, indolopyrrolyl, indolocarbazolyl, indolocarbazolyl, -Si(Q 31 )(Q 32 )(Q 33 )、-N(Q 31 )(Q 32 )、-B(Q 31 )(Q 32 )、-C(=O)(Q 31 )、-S(=O)(Q 31 )、-S(=O) 2 (Q 31 )、-P(=O)(Q 31 )(Q 32 ) and -P(=S)(Q 31 )(Q 32 ) in which at least one of the following substituted cyclopentyl, cyclohexyl, cycloheptyl, cyclopentenyl, cyclohexenyl, phenyl, biphenyl, terphenyl, bicyclopentadienyl, indenyl, naphthyl, azulenyl, dicyclopentadienylphenyl, acenaphthylenyl, fluorene, spirobifluorene, benzofluorene, dibenzofluorene, phenalenyl, phenanthrenyl, anthracenyl, propadienylfluorene, triphenylene, pyrenyl, [oxalyl]yl, perylenyl, condensed pentaphenyl, pyrrolyl, thienyl, furyl, silolyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, [oxazolyl], isoxazolyl, pyridyl, pyridazinyl, pyrimidinyl, pyrimidinyl, indolyl, isoindolyl, indazolyl, purinyl, quinolinyl, isoquinolinyl, benzoquinolinyl, benzoisoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, benzoquinoxalinyl, [oxazinyl], phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, benzofuranyl, benzothienyl, benzosilolyl, benzothiazolyl, benzisothiazolyl, benzoxazolyl, benzisoxazolyl, triazolyl, tetrazolyl, thiadiazolyl, [oxadiazolyl], triazinyl, carbazolyl, dibenzofuranyl, dibenzothienyl, dibenzosilolyl, benzocarbazolyl, naphthobenzofuranyl, naphthobenzothienyl, naphthobenzosilolyl, dibenzocarbazolyl, dinaphthofuranyl, dinaphthothienyl, dinaphthosilolyl, imidazopyridyl, imidazopyrimidinyl, [oxazolopyridyl], thiazolopyridyl, benzonaphthyridinyl, azafuryl, azaspirobifluorene, azacarbazolyl, azadibenzofuranyl, azadibenzothienyl, azadibenzosilolyl, indolopyrrolyl, indolopyrrolyl, indolocarbazolyl and indolocarbazolyl; and -Si(Q 1 )(Q 2 )(Q 3 ), -N(Q 1 )(Q 2 ), -B(Q 1 )(Q 2 ), -C(=O)(Q 1 ), -S(=O)(Q 1 ), -S(=O) 2 (Q 1 )、-P(=O)(Q 1 )(Q 2 )以及-P(=S)(Q 1 )(Q 2 ), 其中Q 1 至Q 3 及Q 31 至Q 33 可各独立地选自氢、氘、-F、-Cl、-Br、-I、羟基、氰基、硝基、甲脒基、肼基、亚肼基、C 1 -C 60 烷基、C 2 -C 60 烯基、C 2 -C 60 炔基、C 1 -C 60 烷氧基、C 3 -C 10 环烷基、C 1 -C 10 杂环烷基、C 3 -C 10 环烯基、C 2 -C 10 杂环烯基、C 6 -C 60 芳基、C 1 -C 60Heteroaryl, monovalent non-aromatic fused polycyclic group, monovalent non-aromatic fused heteropolycyclic group, biphenyl, and terphenyl, but the present disclosure is not limited thereto. In an exemplary embodiment of the present disclosure, R in Formula 1 11 and R 12 can each independently be selected from: A group represented by *-(L 11 ) a11 -(Ar 11 )c 11 A group, hydrogen, deuterium, -F, -Cl, -Br, -I, cyano, and C 1 -C 20 alkyl; C 1 -C 20 alkyl, each substituted with at least one selected from deuterium, -F, -Cl, -Br, -I, and cyano; Groups represented by Formulas 5-1 to 5-138; and -Si(Q 1 )(Q 2 )(Q 3 ), -N(Q 1 )(Q 2 ), -B(Q 1 )(Q 2 ), -C(=O)(Q 1 ), -S(=O)(Q 1 ), -S(=O) 2 (Q 1 ), -P(=O)(Q 1 )(Q 2 ), and -P(=S)(Q 1)(Q 2 ), but the present disclosure is not limited thereto: In Chemical Formulas 5-1 to 5-138, X 51 may be independently selected from O, S, N(R 51 ), and C(R 51 )(R 60 ), X 52 may be N or C(R 52 ), X 53 may be N or C(R 53 ), X 54 may be N or C(R 54 ), X 55 may be N or C(R 55 ), X 56 may be N or C(R 56 ), X 57 may be N or C(R 57 ), X 58 may be N or C(R 58 ), and X 59 may be N or C(R 59 ), R 51 to R 60 may each independently be selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, formamido, hydrazino, hydrazono, C 1 -C 20 alkyl, C 1 -C 20Alkoxy, phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthryl, anthryl, propadienylfluorenyl, triphenylene, pyrenyl, viologenyl, perylenyl, thienyl, furyl, silolyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothienyl, benzosilolyl, dibenzofuranyl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, -Si(Q 31 )(Q 32 )(Q 33 )、-N(Q 31 )(Q 32 )、-B(Q 31 )(Q 32 )、-C(=O)(Q 31 )、-S(=O)(Q 31 )、-S(=O) 2 (Q 31 )、-P(=O)(Q 31 )(Q 32 )以及-P(=S)(Q 31 )(Q 32 ), Q 1 to Q 3 and Q 31 to Q 33 may each independently be selected from C 1 -C 60 alkyl, phenyl, biphenyl, and terphenyl, b51 may be selected from 1, 2, 3, 4, and 5, b52 may be selected from 1, 2, 3, 4, 5, 6, and 7, b53 may be selected from 1, 2, 3, 4, 5, 6, 7, 8, and 9, b54 may be selected from 1, 2, 3, and 4, b55 can be selected from 1, 2, and 3, b56 can be 1 or 2, b57 can be selected from 1, 2, 3, 4, 5, and 6, and * represents the bonding site to the adjacent atom. In Formulas 5-1 to 5-138, b51 to b57 represent the number of substituted sites. When any one of b51 to b57 in any of Formulas 5-1 to 5-138 for the corresponding R 51 、R 52 and R 53 is 2 or greater, two or more of the corresponding R 51 、R 52 and R 53 can be the same as or different from each other. For example, in Formula 5-128, (R 51 ) b54 wherein b54 of R 51 can be 3, then two or three of these 3 R 51 can be the same, or all three can be different from each other. In the exemplary embodiments of the present disclosure, R 11 and R 12 in Formula 1 can each independently be selected from: the group represented by *-(L 11 ) a11 -(Ar 11 )c 11 hydrogen, deuterium, -F, -Cl, -Br, -I, cyano, methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl, and tert-butyl; methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl, and tert-butyl each substituted with at least one selected from deuterium, -F, -Cl, -Br, -I, and cyano; and phenyl, naphthyl, and pyridyl, but the present disclosure is not limited thereto. b11 and b12 in Chemical Formula 1 respectively represent R 11 and R 12 in terms of quantity. b11 and b12 in Chemical Formula 1 can each independently be selected from 1, 2, 3, 4, 5, 6, 7, 8, 9, and 10. When b11 and b12 in Chemical Formula 1 are each 2 or greater, two or more R 11 can be the same as or different from each other, and two or more R 12 can be the same as or different from each other. L in Chemical Formula 1 11 can be selected from a single bond, a substituted or unsubstituted C 5 -C 60 carbocyclic group or a C 1 -C 60 heterocyclic group. In an exemplary embodiment of the present disclosure, L in Chemical Formula 1 11 can be selected from: Single bond, phenylene group, pentalenylene group, indenylene group, naphthylene group, azulenylene group, heptalenylene group, indacenylene group, acenaphthylene group, fluorenylene group, spiro-bifluorenylene group, benzofluorenylene group, dibenzofluorenylene group, phenalenylene group, phenanthrenylene group, anthracenylene group, fluoranthenylene group, triphenylenylene group, pyrenylene group, chrysenylene group, naphthacenylene group, picenylene group, perylenylene group, pentaphenylene group, hexacenylene group, pentacenylene group, rubicenylene group, coronenylene group, ovalenylene group, pyrrolylene group, thienylene group, furanylene group, silolylene group, carbazolylene group, indolylene group, isoindolylene group, benzofuranylene group, benzothienylenegroup), benzosilolylene group, dibenzofuranylene group, dibenzothienylene group, benzocarbazolylene group, dibenzocarbazolylene group, dibenzosilolylene group, pyridinylene group, imidazolylene group, pyrazolylene group, thiazolylene group, isothiazolylene group, oxazolylene group, isoxazolylene group, thiadiazolylene group, oxadiazolylene group, pyrazinylene group, pyrimidinylene group, pyridazinylene group, triazinylene group, quinolinylene group, isoquinolinylene group, benzoquinolinylene group, phthalazinylene group, naphthyridinylene group, quinoxalinylene group, quinazolinylene group, cinnolinylene group, phenanthridinylene group, acridinylene group, phenanthrolinylene group, phenazinylene group, benzimidazolylene group, benzothiazolylenegroup), benzisothiazolylene group, benzoxazolylene group, benzisoxazolylene group, triazolylene group, tetrazolylene group, imidazopyridinylene group, imidazopyrimidinylene group, and azacarbazolylene group; and each independently selected from deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, formamido, hydrazino, hydrazo, C 1 -C 20 alkyl, C 1 -C 20 alkoxy, phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthryl, anthryl, propadienylfluorenyl, triphenylene, pyrenyl, viologenyl, perylenyl, pentaphenyl group, hexacenyl group, condensed pentaphenyl, pyrrolyl, thienyl, furyl, silolyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothienyl, benzosilolyl, dibenzofuranyl, dibenzothienyl, 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, benzothiazolyl, benzisothiazolyl, benzoxazolyl, benzisoxazolyl, triazolyl, tetrazolyl, imidazopyridyl, 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)(Q 31 ), -S(=O) 2 (Q 31 ), -P(=O)(Q 31 )(Q 32 ), and -P(=S)(Q 31 )(Q 32 ), at least one of the substituted phenylene, indenylene, indanyl, naphthylene, azulenylene, cycloheptatrienylene, dicyclopentadienylphenyl, acenaphthylene, fluorenylene, spirobifluorenylene, benzofluorenylene, dibenzofluorenylene, perylenylene, phenanthrenylene, anthracenylene, propadienylindenyl, terphenyl, pyrenyl, [oxalyl]yl, tetraarylphenyl, picenyl, peryleneyl, pentaphenyl, hexaarylphenyl, pentaarylphenyl, rubicenyl, coronenyl, eulenyl, pyrrolyl, thienyl, furyl, thiazolyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothienyl, benzothiazolyl, dibenzofuranyl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl, dibenzothiazolyl, pyridyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, [oxazol]yl, isoxazolyl, thiadiazolyl, [oxadiazol]yl, [pyridazine]yl, pyrimidinyl, [pyrimidine]yl, [triazine]yl, quinolinyl, isoquinolinyl, benzoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, [quinoxaline]yl, phenanthridinyl, acridinyl, phenanthrolinyl, [phenanthroline]yl, benzimidazolyl, benzothiazolyl, benzoisothiazolyl, benzoxazolyl, benzoisoxazolyl, triazolyl, tetrazolyl, imidazopyridyl, imidazopyrimidinyl, and azacarbazolyl, wherein Q 31 to Q 33 may each independently be selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, formamido, hydrazino, hydrazo, C 1 -C 60 alkyl, C 2 -C 60 alkenyl, C 2 -C 60 alkynyl, C 1 -C 60 alkoxy, C 3 -C 10 cycloalkyl, C 1 -C 10 heterocycloalkyl, C 3 -C 10 cycloalkenyl, C 2 -C 10 heterocycloalkenyl, C 6 -C 60 aryl, C 1 -C 60 heteroaryl, monovalent non-aromatic fused polycyclic group, monovalent non-aromatic fused heteropolycyclic group, biphenyl, and terphenyl, but the disclosure is not limited thereto. In an exemplary embodiment of the disclosure, L in Formula 1 11 may be selected from: a single bond, phenylene, naphthylene, fluorenylene, spirobifluorenylene, benzofluorenylene, dibenzofluorenylene, phenanthrenylene, anthrylene, propadienylidene-fluorenylene, terphenylenylene, pyrenylene, perylenylene, thienylene, furylene, thienylene, carbazolylene, indolylene, isoindolylene, benzofurylene, benzothienylene, benzothienylene, dibenzofurylene, dibenzothienylene, benzocarbazolylene, dibenzocarbazolylene, and dibenzothienylene, and each independently selected from deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, formamido, hydrazino, hydrazo, C 1 -C 20 alkyl, C 1 -C 20 alkoxy, phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthryl, anthryl, propadienylfluorenyl, terphenylene, pyrenyl, viologenyl, perylenyl, thienyl, furyl, silolyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothienyl, benzosilolyl, dibenzofuranyl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, -Si(Q 31 )(Q 32 )(Q 33 ) and -B(Q 31 )(Q 32 ) in which at least one of the substituted phenylene, naphthylene, fluorenylene, spirobifluorenylene, benzofluorenylene, dibenzofluorenylene, phenanthrylene, anthrylene, propadienylfluorenylene, terphenylene, pyrenylene, viologenylene, perylenylene, thienylene, furylene, silolylene, carbazolylene, indolylene, isoindolylene, benzofuranylene, benzothienylene, benzosilolylene, dibenzofuranylene, dibenzothienylene, benzocarbazolylene, dibenzocarbazolylene and dibenzosilolylene, wherein Q 31 to Q 33 can each independently be selected from C 1 -C 60 alkyl, phenyl, biphenyl, terphenyl, but the present disclosure is not limited thereto. In an exemplary embodiment of the present disclosure, L in Formula 1 11 can be selected from the groups represented by Formulas 3-1 to 3-41, but the present disclosure is not limited thereto: In Formulas 3-1 to 3-41, X 31 can be O or S, X 32 can be selected from O, S, N(R 33 ) and C(R 33 )(R 34 ) R 33 to R 34 may each independently be selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, formamido, hydrazino, hyponitrous, C 1 -C 20 alkyl, C 1 -C 20 alkoxy, phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthryl, anthryl, propadienylfluorenyl, triphenylene, pyrenyl, [oxadiazolyl], perylenyl, thienyl, furyl, silolyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothienyl, benzosilolyl, dibenzofuranyl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, -Si(Q 31 )(Q 32 )(Q 33 ), -N(Q 31 )(Q 32 ) and -B(Q 31 )(Q 32 ), Q 31 to Q 33 may each independently be selected from C 1 -C 60 alkyl, phenyl, biphenyl, terphenyl, b31 may be selected from 1, 2, 3 and 4, b32 may be selected from 1, 2, 3, 4, 5 and 6, b33 may be selected from 1, 2, 3, 4, 5, 6, 7 and 8, b34 may be selected from 1, 2, 3, 4 and 5, b35 may be selected from 1, 2 and 3, b36 may be 1 or 2, and * and *' each represent a bonding site to an adjacent atom. a11 in Chemical Formula 1 represents the number of L 11 . The a11 in Chemical Formula 1 can be selected from 0, 1, 2, 3, and 4. When a11 in Chemical Formula 1 is 0, (L 11 ) a11 can be a single bond. When a11 in Chemical Formula 1 is 2 or greater, 2 or more L 11 can be the same as or different from each other. In Chemical Formulas 3-1 to 3-41, b31 to b36 represent the number of substituted sites. When any one of b31 to b36 in any of Chemical Formulas 3-1 to 3-41 is 2 or greater for any of the corresponding R 31 to R 34 in any of them, 2 or more of the corresponding R 31 to R 34 can be the same as or different from each other. For example, in Chemical Formula 3-40, (R 32 ) b31 where b31 of R 32 can be 3, then 2 or 3 of these 3 R 32 can be the same, or all 3 can be different from each other. In the exemplary embodiments of the present disclosure, a11 in Chemical Formula 1 can be selected from 0, 1, and 2, but the present disclosure is not limited thereto. Ar in Chemical Formula 1 11 can be selected from -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, formamido, hydrazino, hyrazono, substituted or unsubstituted C 1 -C 60 alkyl, substituted or unsubstituted C 2 -C 60 alkenyl, substituted or unsubstituted C 2 -C 60 alkynyl, substituted or unsubstituted C 1 -C 60 Alkoxy, substituted or unsubstituted C 3 -C 10 Cycloalkyl, substituted or unsubstituted C 1 -C 10 Heterocycloalkyl, substituted or unsubstituted C 3 -C 10 Cycloalkenyl, substituted or unsubstituted C 2 -C 10 Heterocycloalkenyl, substituted or unsubstituted C 6 -C 60 Aryl, substituted or unsubstituted C 6 -C 60 Aryloxy, substituted or unsubstituted C 6 -C 60 Arylthio, substituted or unsubstituted C 1 -C 60 Heteroaryl, substituted or unsubstituted C 1 -C 60 Heteroaryloxy, substituted or unsubstituted C 1 -C 60 Heteroarylthio, substituted or unsubstituted monovalent non-aromatic fused polycyclic group, substituted or unsubstituted monovalent non-aromatic fused heteropolycyclic group, -Si(Q 1 )(Q 2 )(Q 3 ), -N(Q 1 )(Q 2 ), -B(Q 1 )(Q 2 )、 -C(=O)(Q 1 )、 -S(=O)(Q 1 )、 -S(=O) 2 (Q 1 )、 -P(=O)(Q 1 )(Q 2 )以及 -P(=S)(Q 1 )(Q 2 )。 其中Q 1 至Q 3 可各独立地选自氢、氘、 -F、 -Cl、 -Br、 -I、羟基、氰基、硝基、甲脒基、肼基、亚肼基、经取代或未经取代之C 1 -C 60 烷基、经取代或未经取代之C 2 -C 60 烯基、经取代或未经取代之C 2 -C 60 炔基、经取代或未经取代之C 1 -C 60 烷氧基、经取代或未经取代之C 3 -C 10 环烷基、经取代或未经取代之C 1 -C 10 杂环烷基、经取代或未经取代之C 3 -C 10 环烯基、经取代或未经取代之C 2 -C 10Heterocycloalkenyl, substituted or unsubstituted C 6 -C 60 Aryl, substituted or unsubstituted C 6 -C 60 Aryloxy, substituted or unsubstituted C 6 -C 60 Arylthio, substituted or unsubstituted C 1 -C 60 Heteroaryl, substituted or unsubstituted C 1 -C 60 Heteroaryloxy, substituted or unsubstituted C 1 -C 60 Heteroarylthio, substituted or unsubstituted monovalent non-aromatic fused polycyclic group, substituted or unsubstituted monovalent non-aromatic fused heteropolycyclic group. In an exemplary embodiment of the present disclosure, Ar in Formula 1 11 may be selected from: -F, -Cl, -Br, -I, cyano, C 1 -C 20 alkyl and C 1 -C 20 alkoxy; each C substituted with at least one selected from deuterium, -F, -Cl, -Br, -I, cyano, phenyl and biphenyl 1 -C 20 alkyl and C 1 -C 20 alkoxy; Cyclopentyl, cyclohexyl, cycloheptyl, cyclopentenyl, cyclohexenyl, phenyl, biphenyl, terphenyl, bicyclopentadienyl, indenyl, naphthyl, azulenyl, dicyclopentadienylphenyl, acenaphthyl, fluorene, spirobifluorene, benzofluorene, dibenzofluorene, phenalene, phenanthryl, anthryl, propadienylfluorene, triphenylene, pyrenyl, perylenyl, pentacenyl, pyrrolyl, thienyl, furyl, silolyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, pyridyl, pyridazinyl, pyrimidinyl, pyrimidinyl, indolyl, isoindolyl, indazolyl, purinyl, quinolyl, isoquinolyl, benzoquinolyl, benzoisoquinolyl, phthalazinyl, naphthyridinyl, quinoxalinyl, benzoquinoxalinyl, quinazolinyl, benzoquinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenanthridinyl, benzimidazolyl, benzofuranyl, benzothienyl, benzosilolyl, benzothiazolyl, benzisothiazolyl, benzoxazolyl, benzisoxazolyl, triazolyl, tetrazolyl, thiadiazolyl, oxadiazolyl, triazinyl, carbazolyl, dibenzofuranyl, dibenzothienyl, dibenzosilolyl, benzocarbazolyl, naphthobenzofuranyl, naphthobenzothienyl, naphthobenzosilolyl, dibenzocarbazolyl, dinaphthofuranyl, dinaphthothienyl, dinaphthosilolyl, imidazopyridyl, imidazopyrimidinyl, oxazolopyridyl, thiazolopyridyl, benzonaphthyridinyl, azafuryl, azaspirobifluorene, azacarbazolyl, azadibenzofuranyl, azadibenzothienyl, azadibenzosilolyl, indolopyrrolyl, indolopyrrolyl, indolocarbazolyl, and indolocarbazolyl; each independently selected from deuterium, -F, -Cl, -Br, -I, cyano, C 1 -C 20 alkyl, C 1 -C 20Alkoxy, cyclopentyl, cyclohexyl, cycloheptyl, cyclopentenyl, cyclohexenyl, phenyl, biphenyl, terphenyl, bicyclopentadienyl, indenyl, naphthyl, azulenyl, dicyclopentadienylphenyl, acenaphthyl, fluorene, spirobifluorene, benzofluorenyl, dibenzofluorenyl, perylenyl, phenanthryl, anthryl, propadienylfluorenyl, triphenylene, pyrenyl, viologenyl, perylenyl, condensed pentaphenyl, pyrrolyl, thienyl, furyl, silolyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, pyridyl, pyridazinyl, pyrimidinyl, pyrimidinyl, indolyl, isoindolyl, indazolyl, purinyl, quinolinyl, isoquinolinyl, benzoquinolinyl, benzoisoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, benzoquinoxalinyl, quinazolinyl, benzoquinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenanthridinyl, benzimidazolyl, benzofuranyl, benzothienyl, benzosilolyl, benzothiazolyl, benzisothiazolyl, benzoxazolyl, benzisoxazolyl, triazolyl, tetrazolyl, thiadiazolyl, oxadiazolyl, triazinyl, carbazolyl, dibenzofuranyl, dibenzothienyl, dibenzosilolyl, benzocarbazolyl, naphthobenzofuranyl, naphthobenzothienyl, naphthobenzosilolyl, dibenzocarbazolyl, dinaphthofuranyl, dinaphthothienyl, dinaphthosilolyl, imidazopyridyl, imidazopyrimidinyl, oxazolopyridyl, thiazolopyridyl, benzonaphthyridinyl, azafuranyl, azaspirobifuranyl, azacarbazolyl, azadibenzofuranyl, azadibenzothienyl, azadibenzosilolyl, indolopyrrolyl, indolopyrrolyl, indolocarbazolyl, indolocarbazolyl, -Si(Q 31 )(Q 32 )(Q 33 )、-N(Q 31 )(Q 32 )、-B(Q 31 )(Q 32 )、-C(=O)(Q 31 )、-S(=O)(Q 31 )、-S(=O) 2 (Q 31 )、-P(=O)(Q 31 )(Q 32 ) and -P(=S)(Q 31 )(Q 32 ) in which at least one of the following substituted cyclopentyl, cyclohexyl, cycloheptyl, cyclopentenyl, cyclohexenyl, phenyl, biphenyl, terphenyl, bicyclopentadienyl, indenyl, naphthyl, azulenyl, dicyclopentadienylphenyl, acenaphthyl, fluorene, spirobifluorene, benzofluorene, dibenzofluorene, phenalenyl, phenanthryl, anthryl, propadienylfluorene, triphenylene, pyrenyl, viologenyl, perylenyl, condensed pentaphenyl, pyrrolyl, thienyl, furyl, silolyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, pyridyl, pyridazinyl, pyrimidinyl, pyrimidinyl, indolyl, isoindolyl, indazolyl, purinyl, quinolinyl, isoquinolinyl, benzoquinolinyl, benzoisoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, benzoquinoxalinyl, quinazolinyl, benzoquinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenanthridinyl, benzimidazolyl, benzofuranyl, benzothienyl, benzosilolyl, benzothiazolyl, benzisothiazolyl, benzoxazolyl, benzisoxazolyl, triazolyl, tetrazolyl, thiadiazolyl, oxadiazolyl, triazinyl, carbazolyl, dibenzofuranyl, dibenzothienyl, dibenzosilolyl, benzocarbazolyl, naphthobenzofuranyl, naphthobenzothienyl, naphthobenzosilolyl, dibenzocarbazolyl, dinaphthofuranyl, dinaphthothienyl, dinaphthosilolyl, imidazopyridyl, imidazopyrimidinyl, oxazolopyridyl, thiazolopyridyl, benzonaphthyridinyl, azafuryl, azaspirobifluorene, azacarbazolyl, azadibenzofuranyl, azadibenzothienyl, azadibenzosilolyl, indolopyrrolyl, indolopyrrolyl, indolocarbazolyl and indolocarbazolyl; -Si(Q 1 )(Q 2 )(Q 3 ), -N(Q 1 )(Q 2 ), -B(Q 1 )(Q 2 ), -C(=O)(Q 1 ), -S(=O)(Q 1 ), -S(=O) 2 (Q 1 )、 -P(=O)(Q 1 )(Q 2 ) and -P(=S)(Q 1 )(Q 2 ), wherein Q 1 to Q 3 and Q 31 to Q 33 can each independently be selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, formamido, hydrazino, hyponitrous, C 1 -C 60 alkyl, C 2 -C 60 alkenyl, C 2 -C 60 alkynyl, C 1 -C 60 alkoxy, C 3 -C 10 cycloalkyl, C 1 -C 10 heterocycloalkyl, C 3 -C 10 cycloalkenyl, C 2 -C 10 heterocycloalkenyl, C 6 -C 60 aryl, C 1 -C 60Heteroaryl, monovalent non-aromatic fused polycyclic group, monovalent non-aromatic fused heteropolycyclic group, biphenyl group, and terphenyl group, but the present disclosure is not limited thereto. In an exemplary embodiment of the present disclosure, Ar in Formula 1 11 may be selected from: -F, -Cl, -Br, -I, cyano group, and C 1 -C 20 alkyl group; C each substituted with at least one selected from deuterium, -F, -Cl, -Br, -I, and cyano group 1 -C 20 alkyl group; groups represented by Formulas 5-1 to 5-138; and -Si(Q 1 )(Q 2 )(Q 3 )、-N(Q 1 )(Q 2 )、-B(Q 1 )(Q 2 )、-C(=O)(Q 1 )、-S(=O)(Q 1 )、-S(=O) 2 (Q 1 )、-P(=O)(Q 1 )(Q 2 ) and -P(=S)(Q 1 )(Q 2 ), wherein Q 1 to Q 3 may each independently be selected from C 1 -C 60 alkyl, phenyl, biphenyl, terphenyl, but the present disclosure is not limited thereto. In an exemplary embodiment of the present disclosure, Ar in Formula 1 11 may be selected from: -F, -Cl, -Br, -I, cyano, methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl, and tert-butyl; methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl, and tert-butyl each substituted with at least one selected from deuterium, -F, -Cl, -Br, -I, and cyano; groups represented by Formulas 6-1 to 6-257; and -S(=O)(Ph), -S(=O) 2 (Ph), -P(=O)(Ph) 2 and -P(=S)(Ph) 2 , but the present disclosure is not limited thereto: In Formulas 6-1 to 6-257, t-Bu represents tert-butyl, Ph represents phenyl, 1-Naph represents 1-naphthyl, 2-Naph represents 2-naphthyl, and * represents the bonding site to an adjacent atom. c11 in Formula 1 represents the 11 number of substitutions of Ar. c11 in Formula 1 may be selected from 1, 2, 3, 4, 5, and 6. When c11 in Formula 1 is 2 or greater, two or more Ar 11 may be the same as or different from each other. In an exemplary embodiment of the present disclosure, c11 in Formula 1 may be selected from 1, 2, and 3, but the present disclosure is not limited thereto. R in Formula 1 13 and R 14 may each independently be selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, formamido, hydrazino, hydrazo, substituted or unsubstituted C 1 -C 60 alkyl, substituted or unsubstituted C 2 -C 60 alkenyl, substituted or unsubstituted C 2 -C 60 alkynyl, substituted or unsubstituted C 1 -C 60 alkoxy, substituted or unsubstituted C 3 -C 10 cycloalkyl, substituted or unsubstituted C 1 -C 10 heterocycloalkyl, substituted or unsubstituted C 3 -C 10 cycloalkenyl, substituted or unsubstituted C 2 -C 10 heterocycloalkenyl, substituted or unsubstituted C 6 -C 60 aryl, substituted or unsubstituted C 6 -C 60 aryloxy, substituted or unsubstituted C 6 -C 60 arylthio, substituted or unsubstituted C 1 -C 60 heteroaryl, substituted or unsubstituted C 1 -C 60 heteroaryloxy, substituted or unsubstituted C 1 -C 60 heteroarylthio, substituted or unsubstituted monovalent non-aromatic fused polycyclic group, substituted or unsubstituted monovalent non-aromatic fused heteropolycyclic group. In an exemplary embodiment of the present disclosure, R in Formula 1 13 and R 14 may each independently be selected from: hydrogen, deuterium, -F, -Cl, -Br, -I, cyano, methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl, and tert-butyl; methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl, and tert-butyl each substituted with at least one selected from deuterium, -F, -Cl, -Br, -I, and cyano; and phenyl, naphthyl, and pyridyl, but the present disclosure is not limited thereto. In an exemplary embodiment of the present disclosure, the condensed polycyclic compound represented by Chemical Formula 1 may be represented by Chemical Formula 1-1, but the present disclosure is not limited thereto: <Chemical Formula 1-1> . In Chemical Formula 1-1, Y 11 to Y 18 may each independently be selected from N, C(R x ) and C(R y ), where at least one of Y 11 to Y 18 is C(R y ), R x may be selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, formamido, hydrazino, hyrazono, substituted or unsubstituted C 1 -C 60 alkyl, substituted or unsubstituted C 2 -C 60 alkenyl, substituted or unsubstituted C 2 -C 60 alkynyl, substituted or unsubstituted C 1 -C 60 alkoxy, substituted or unsubstituted C 3 -C 10 Cycloalkyl, substituted or unsubstituted C 1 -C 10 Heterocycloalkyl, substituted or unsubstituted C 3 -C 10 Cycloalkenyl, substituted or unsubstituted C 2 -C 10 Heterocycloalkenyl, substituted or unsubstituted C 6 -C 60 Aryl, substituted or unsubstituted C 6 -C 60 Aryloxy, substituted or unsubstituted C 6 -C 60 Arylthio, substituted or unsubstituted C 1 -C 60 Heteroaryl, substituted or unsubstituted C 1 -C 60 Heteroaryloxy, substituted or unsubstituted C 1 -C 60 Heteroarylthio, substituted or unsubstituted monovalent non-aromatic fused polycyclic group, substituted or unsubstituted monovalent non-aromatic fused heteropolycyclic group, -Si(Q 1 )(Q 2 )(Q 3 )、-N(Q 1 )(Q 2 )、-B(Q 1 )(Q 2 )、-C(=O)(Q 1)、 -S(=O)(Q 1 )、 -S(=O) 2 (Q 1 )、 -P(=O)(Q 1 )(Q 2 ) and -P(=S)(Q 1 )(Q 2 ), R y may be a group represented by *-(L 11 ) a11 -(Ar 11 )c 11 indicates the group. X 11 、L 11 、a11、Ar 11 、c11 and Q 1 to Q 3 may be the same as the description related to Chemical Formula 1, and * indicates the connection point to the adjacent atom. In the exemplary embodiments of the present disclosure, in Chemical Formula 1-1, Y 11 may be C(R y ), and Y 12 to Y 18 may each independently be selected from N, C(R x ) and C(R y ); Y 12 may be C(R y ), and Y 11 and Y 13 to Y 18 can each independently be selected from N, C(R x ) and C(R y ); Y 13 can be C(R y ), and Y 11 、Y 12 以及Y 14 至Y 18 can each independently be selected from N, C(R x ) and C(R y ); Y 14 can be C(R y ), and Y 11 至Y 13 以及Y 15 至Y 18 can each independently be selected from N, C(R x ) and C(R y ); Y 15 can be C(R y ), and Y 11 至Y 14 以及Y 16 至Y 18 can each independently be selected from N, C(R x ) and C(R y ); Y 16 can be C(R y ), and Y 11 to Y 15 , Y 17 and Y 18 may each independently be selected from N, C(R x ), and C(R y ); Y 17 may be C(R y ), and Y 11 to Y 16 and Y 18 may each independently be selected from N, C(R x ), and C(R y ); or Y 18 may be C(R y ), and Y 11 to Y 17 may each independently be selected from N, C(R x ), and C(R y ), but the disclosure is not limited thereto. In an exemplary embodiment of the disclosure, Formula 1-1 may include a tetracyclic structure containing 4 fused aromatic rings. At least one hydrogen of the tetracyclic structure may be substituted with F, Cl, Br, I, a hydroxyl group, a cyano group, a nitro group, a formamido group, a hydrazino group, a hydrazo group, or an organic substituent. The organic substituent may include at least one C atom and optionally include at least one of N, S, O, P, Si, B, F, Cl, Br, and I atoms. In an exemplary embodiment of the disclosure, the condensed ring compound represented by Formula 1 may be represented by one of Formulas 1-11 to 1-18, 1-21 to 1-27, 1-31 to 1-37, 1-41 to 1-47, 1-51 to 1-57, 1-61 to 1-67, 1-71 to 1-77, and 1-81 to 1-87, but the disclosure is not limited thereto: . In Chemical Formulas 1-11 to 1-18, 1-21 to 1-27, 1-31 to 1-37, 1-41 to 1-47, 1-51 to 1-57, 1-61 to 1-67, 1-71 to 1-77, and 1-81 to 1-87, R 11a 、R 11b 、R 11c 、R 11d 、R 12a 、R 12b 、R 12c 以及R 12d may each independently be selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, formamido, hydrazino, hyponitrous, substituted or unsubstituted C 1 -C 60 alkyl, substituted or unsubstituted C 2 -C 60 alkenyl, substituted or unsubstituted C 2 -C 60 alkynyl, substituted or unsubstituted C 1 -C 60 alkoxy, substituted or unsubstituted C 3 -C 10 cycloalkyl, substituted or unsubstituted C 1 -C 10 heterocycloalkyl, substituted or unsubstituted C 3 -C 10 cycloalkenyl, substituted or unsubstituted C 2 -C 10 heterocycloalkenyl, substituted or unsubstituted C 6 -C 60 Aryl, substituted or unsubstituted C 6 -C 60 Aryloxy, substituted or unsubstituted C 6 -C 60 Arylthio, substituted or unsubstituted C 1 -C 60 Heteroaryl, substituted or unsubstituted C 1 -C 60 Heteroaryloxy, substituted or unsubstituted C 1 -C 60 Heteroarylthio, substituted or unsubstituted monovalent non-aromatic fused polycyclic group, substituted or unsubstituted monovalent non-aromatic fused heteropolycyclic group, -Si(Q 1 )(Q 2 )(Q 3 )、-N(Q 1 )(Q 2 )、-B(Q 1 )(Q 2 )、-C(=O)(Q 1 )、-S(=O)(Q 1 )、-S(=O) 2 (Q 1 )、-P(=O)(Q 1 )(Q 2 ) and -P(=S)(Q 1 )(Q 2 ),and X 11 、L 11 , a11, Ar 11 , c11 and Q 1 to Q 3 may be the same as the description related to Chemical Formula 1. In the exemplary embodiments of the present disclosure, in Chemical Formulas 1-11 to 1-18, 1-21 to 1-27, 1-31 to 1-37, 1-41 to 1-47, 1-51 to 1-57, 1-61 to 1-67, 1-71 to 1-77, and 1-81 to 1-87, R 11a , R 11b , R 11c , R 11d , R 12a , R 12b , R 12c and R 12d may each independently be selected from: hydrogen, deuterium, -F, -Cl, -Br, -I, cyano, methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl, and tert-butyl; methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl, and tert-butyl each substituted with at least one selected from deuterium, -F, -Cl, -Br, -I, and cyano; and phenyl, naphthyl, and pyridyl, but the present disclosure is not limited thereto. In the exemplary embodiments of the present disclosure, the condensed ring compound represented by Chemical Formula 1 may be represented by one of Chemical Formulas 1-12, 1-13, 1-14, 1-17, and 1-22, but the present disclosure is not limited thereto. In the exemplary embodiments of the present disclosure, the condensed ring compound represented by Chemical Formula 1 may be selected from Compounds 1 to 211, but the present disclosure is not limited thereto: Because the condensed ring compound represented by Chemical Formula 1 contains the structure represented by , the condensed ring compound may be rigid. Therefore, the condensed ring compound represented by Chemical Formula 1 may have enhanced physical, chemical, photochemical, and / or electrochemical stability. Accordingly, the organic light-emitting device including the condensed ring compound represented by Chemical Formula 1 may exhibit long service life characteristics, enhanced storage stability, and / or enhanced reliability. The condensed ring compound represented by Chemical Formula 1 contains at least two nitrogen atoms and one oxygen or sulfur atom in the structure represented by In the structure represented by . Because it contains at least two nitrogen atoms, the repulsive force between the hydrogen atoms contained in the benzene ring can be reduced between adjacent molecules. Because it contains a chalcogen atom such as O or S, the intermolecular attraction can be increased. Due to these two effects, the molecules of the condensed ring compound tend to exhibit close packing, resulting in an increase in charge mobility. The condensed ring compound represented by Chemical Formula 1 has a structure in which two five-membered rings are condensed with each other, such as the structure represented by In the structure represented by . Accordingly, because of the hydrogen (for example, the hydrogen of C-H) present in the structure where the five-membered rings are condensed with each other, the steric hindrance caused by the adjacent hydrogen (for example, the hydrogen at the α-position) in the molecule can be eliminated. Therefore, the condensed ring compound represented by Chemical Formula 1 has a planar structure and / or a rigid structure. Accordingly, the organic light-emitting device containing the condensed ring compound represented by Chemical Formula 1 can exhibit a long service life, enhanced storage stability, and / or enhanced reliability. The condensed ring compound of Chemical Formula 1 can be used between a pair of electrodes of an organic light-emitting device. Exemplary embodiments of the present disclosure provide an organic light-emitting device, which includes: a first electrode; a second electrode; an organic layer between the first electrode and the second electrode, the organic layer including a light-emitting layer, wherein the organic layer includes a condensed ring compound represented by Chemical Formula 1. In the exemplary embodiments of the present disclosure, the first electrode can be an anode, the second electrode can be a cathode, the organic layer can further include an electron transport region between the second electrode and the light-emitting layer, and the electron transport region can include a condensed ring compound, but the present disclosure is not limited thereto. In the exemplary embodiments of the present disclosure, the electron transport region can further include an electron transport layer and an electron injection layer. The electron transport layer can include a condensed ring compound, and the electron injection layer can 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 a combination thereof, but the present disclosure is not limited thereto. The expression “(the organic layer) contains at least one condensed ring compound” used herein can include the case where “(the organic layer) contains the same condensed ring compound represented by Chemical Formula 1” and the case where “(the organic layer) contains two or more different condensed ring compounds represented by Chemical Formula 1”. In an exemplary embodiment of the present disclosure, the organic layer may include only Compound 1 as the condensed-ring compound. In this aspect, Compound 1 may be present in the light-emitting layer of the organic light-emitting device. In an exemplary embodiment of the present disclosure, the organic layer may include Compound 1 and Compound 2 as the condensed-ring compounds. In this aspect, Compound 1 and Compound 2 may be present in the same layer (for example, both Compound 1 and Compound 2 may be present in the electron transport layer) or in different layers (for example, Compound 1 may be present in the electron transport layer and Compound 2 may be present in the light-emitting layer). The organic layer includes: i) a hole transport region disposed between the first electrode (anode) and the light-emitting layer and including at least one of a hole injection layer, a hole transport layer, a buffer layer, and an electron blocking layer; and ii) an electron transport region disposed between the light-emitting layer and the second electrode (cathode) and including at least one selected from a hole blocking layer, an electron transport layer, and an electron injection layer. At least one of the hole transport region and the light-emitting layer may include at least one condensed-ring compound represented by Chemical Formula 1. In an exemplary embodiment of the present disclosure, the electron transport region of the organic light-emitting device may include at least one organometallic compound represented by Chemical Formula 1. The term "organic layer" as used herein refers to a single layer and / or multiple layers disposed between the first electrode and the second electrode of the organic light-emitting device. The material included in the "organic layer" is not limited to an organic material. [Description of FIG. 1] FIG. 1 is a schematic diagram of an organic light-emitting device 10 according to an exemplary embodiment of the present disclosure. The organic light-emitting device 10 includes a first electrode 110, an organic layer 150, and a second electrode 190. Hereinafter, the structure of the organic light-emitting device 10 and the manufacturing method of the organic light-emitting device 10 according to an exemplary embodiment of the present disclosure will be described with reference to FIG. 1. [First Electrode 110] In FIG. 1, a substrate may be additionally disposed under the first electrode 110 or above the second electrode 190. The substrate may be a glass substrate or a plastic substrate, each having excellent mechanical strength, thermal stability, light transmittance, surface smoothness, ease of processing, and water resistance. The first electrode may be formed by depositing or sputtering a material for forming the first electrode 110 on the substrate. When the first electrode 110 is an anode, the material of the first electrode 110 may be selected from materials having a high work function to facilitate hole injection. 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 (SnO 2) Zinc oxide (ZnO) and any combination thereof, but the present disclosure is not limited thereto. In an exemplary embodiment of the present disclosure, 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 any combination thereof, but the present disclosure is not limited thereto. 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 present disclosure is not limited thereto. [Organic layer 150] The organic layer 150 is disposed on the first electrode 110. The organic layer 150 may include a light-emitting layer. The organic layer 150 may further include a hole transport region disposed between the first electrode 110 and the light-emitting layer and an electron transport region disposed between the light-emitting layer and the second electrode 190. [Hole transport region in organic layer 150] 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 multiple different materials, or iii) a multi-layer structure including multiple layers containing multiple different materials. The hole transport region may include at least one layer selected from a hole injection layer (HIL), a hole transport layer (HTL), a light-emitting auxiliary layer, and an electron blocking layer (EBL). In an exemplary embodiment of the present disclosure, the hole transport region may have a single-layer structure including a single layer containing multiple different materials or a multi-layer structure having a hole injection layer / hole transport layer structure, a hole injection layer / hole transport layer / light-emitting auxiliary layer structure, a hole injection layer / light-emitting auxiliary layer structure, a hole transport layer / light-emitting auxiliary layer structure, or a hole injection layer / hole transport layer / electron blocking layer structure, wherein the constituent layers of each structure are stacked on the first electrode 110 in the above order from the first electrode 110, but the present disclosure is not limited thereto. The hole transport region may include a material selected from 4,4',4''-tris(3-methylphenylphenylamino)triphenylamine (m-MTDATA), 4,4',4''-tris(N,N-diphenylamino)triphenylamine (TDATA), 4,4',4''-tris{N-(2-naphthyl)-N-phenylamino}-triphenylamine (2-TNATA), N,N'-di(naphthalene-1-yl)-N,N’-diphenylbenzidine (NPB, NPD), β-NPB, N,N'-bis(3-methylphenyl)-N,N'-diphenyl-[1,1'-biphenyl]-4,4'-diamine (TPD), spiro-TPD, spiro-NPB, methylated-NPB, 4,4'-cyclohexylidenebis[N,N-bis(4-methylphenyl)benzenamine] (TAPC), 4,4'-bis[N,N’-(3-tolyl)amino]-3,3'-dimethylbiphenyl (HMTPD), 4,4',4"-tris(N-carbazolyl)triphenylamine (TCTA), polyaniline / dodecylbenzenesulfonic acid (Pani / DBSA), poly(3,4-ethylenedioxythiophene) / poly(4-styrenesulfonate) (PEDOT / PSS), polyaniline / camphor sulfonic acidat least one of polyaniline / poly(4-styrenesulfonate) (Pani / PSS), the compound represented by Chemical Formula 201, and the compound represented by Chemical Formula 202: <Chemical Formula 201> <Chemical Formula 202> 。 In Chemical Formulas 201 and 202, L 201 to L 204 may each independently be selected from substituted or unsubstituted C 3 -C 10 cycloalkylidene, substituted or unsubstituted C 1 -C 10 heterocycloalkylidene, substituted or unsubstituted C 3 -C 10 cycloalkenylidene, substituted or unsubstituted C 2 -C 10 heterocycloalkenylidene, substituted or unsubstituted C 6 -C 60 arylidene, substituted or unsubstituted C 1 -C 60 heteroarylidene, substituted or unsubstituted divalent non-aromatic condensed polycyclic group, and substituted or unsubstituted divalent non-aromatic condensed heteropolycyclic group; L 205 may be selected from *-O-*', *-S-*', *-N(Q 201 )-*', substituted or unsubstituted C 1 -C 20 alkylidene, substituted or unsubstituted C 2 -C 20Vinylene, substituted or unsubstituted C 3 -C 10 Cycloalkylidene, substituted or unsubstituted C 1 -C 10 Heterocycloalkylidene, substituted or unsubstituted C 3 -C 10 Cycloalkenylene, substituted or unsubstituted C 2 -C 10 Heterocycloalkenylene, substituted or unsubstituted C 6 -C 60 Arylene, substituted or unsubstituted C 1 -C 60 Heteroarylene, substituted or unsubstituted divalent non-aromatic fused polycyclic group and substituted or unsubstituted divalent non-aromatic fused heteropolycyclic group, xa1 to xa4 can each independently be an integer from 0 to 3, xa5 can be an integer from 1 to 10, R 201 to R 204 and Q 201 can each independently be selected from substituted or unsubstituted C 3 -C 10 Cycloalkyl, substituted or unsubstituted C 1 -C 10 Heterocycloalkyl, substituted or unsubstituted C 3 -C 10 Cycloalkenyl, substituted or unsubstituted C 2 -C 10 Heterocycloalkenyl, substituted or unsubstituted C 6 -C 60 Aryl, substituted or unsubstituted C 6 -C 60 Aryloxy, substituted or unsubstituted C 6 -C 60 Arylthio, substituted or unsubstituted C 1 -C 60 Heteroaryl, substituted or unsubstituted monovalent non-aromatic fused polycyclic group, and substituted or unsubstituted monovalent non-aromatic fused heteropolycyclic group. In an exemplary embodiment of the present disclosure, in Chemical Formula 202, R 201 and R 202 may optionally be linked via a single bond, dimethyl-methylene or diphenyl-methylene, while R 203 and R 204 may optionally be linked via a single bond, dimethyl-methylene or diphenyl-methylene. In an exemplary embodiment of the present disclosure, in Chemical Formulas 201 and 202, L 201 to L 205 may each independently be selected from: phenylenyl, indenylene, naphthylenyl, azulenylene, heptalenylene group, dicyclopentadienylphenylenyl, acenaphthylenyl, fluorenylene, spirobifluorenylene, benzofluorenylene, dibenzofluorenylene, acephenanthrylenyl, phenanthrenylene, anthrylenyl, propadienylindenyl, terphenylenyl, pyrenyl, chrysenyl, naphthacenylene group, picenylene group, perylenyl, pentaphenylenyl, hexacenylene group, pentacenylene group, rubicenylene group, coronenylene group, ovalenylene group, thienyl, furyl, carbazolyl, indolyl, isoindolyl, benzofuryl, benzothienyl, dibenzofuryl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, and pyridinyl; each independently selected from deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, formamido, hydrazino, hydrazo, C 1 -C 20 alkyl, C 1 -C 20 alkoxy, cyclopentyl, cyclohexyl, cycloheptyl, cyclopentenyl, cyclohexenyl, phenyl, biphenyl, terphenyl, phenyl substituted with C 1 -C 10 alkyl, phenyl substituted with -F, indenyl, naphthyl, azulenyl, heptalenyl, dicyclopentadienylphenyl, acenaphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, acephenanthryl, phenanthryl, anthryl, propadienylindene, terphenyl, pyrenyl, chrysenyl, naphthacenyl group, picenyl group, perylenyl, pentaphenylenyl, hexacenyl group, pentacenyl, rubicenyl, coronenyl, ovalenyl, thienyl, furyl, carbazolyl, indolyl, isoindolyl, benzofuryl, benzothienyl, dibenzofuryl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, pyridinyl, -Si(Q 31 )(Q 32 )(Q 33 ) and -N(Q 31 )(Q 32 ) at least one of the substituted phenylene, s-indacenyl, s-indenyl, s-naphthyl, s-azulenyl, s-cycloheptatrienyl, s-dicyclopentadienylphenyl, s-acenaphthylene, s-fluorene, s-spirobifluorene, s-benzofluorene, s-dibenzofluorene, s-phenalene, s-phenanthrene, s-anthracene, s-propadienylfluorene, s-triphenylene, s-pyrene, s-oxadiazonium, s-tetraphenylene, s-chrysene, s-perylene, s-pentaphenylene, s-hexaphenylene, s-pentacene, s-rubicene, s-coronene, s-gonene, s-thienyl, s-furyl, s-carbazolyl, s-indolyl, s-isoindolyl, s-benzofuranyl, s-benzothienyl, s-dibenzofuranyl, s-dibenzothienyl, s-benzocarbazolyl, s-dibenzocarbazolyl, s-dibenzosilolyl and s-pyridinyl; and Q 31 to Q 33 may each independently be selected from C 1 -C 10 alkyl, C 1 -C 10 alkoxy, phenyl, biphenyl, terphenyl and naphthyl, but the present disclosure is not limited thereto. In exemplary embodiments of the present disclosure, xa1 to xa4 may each independently be 0, 1 or 2. In exemplary embodiments of the present disclosure, xa5 may be 0, 1, 2, 3 or 4. In exemplary embodiments of the present disclosure, R 201 to R 204 and Q 201may each independently be selected from phenyl, biphenyl, terphenyl, cyclopentadienyl, indenyl, naphthyl, azulyl, cycloheptatrienyl, dicyclopentadienylphenyl, acenaphthyl, fluorene, spirobifluorene, benzofluorenyl, dibenzofluorenyl, phenanthryl, phenanthrenyl, anthracenyl, propadienylfluorenyl, triphenylene, pyrenyl, perylenyl, tetrabenzo[α]pyrenyl, picenyl, perylenyl, pentaphenyl, hexahelicene, pentahelicene, rugbyl, coronenyl, ovalenyl, thienyl, furyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothienyl, dibenzofuranyl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, and pyridyl; each independently selected from deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, formamido, hydrazino, hydrazo, C 1 -C 20 alkyl, C 1 -C 20 alkoxy, cyclopentyl, cyclohexyl, cycloheptyl, cyclopentenyl, cyclohexenyl, phenyl, biphenyl, terphenyl, phenyl substituted with C 1 -C 10 alkyl, phenyl substituted with -F, cyclopentadienyl, indenyl, naphthyl, azulyl, cycloheptatrienyl, dicyclopentadienylphenyl, acenaphthyl, fluorene, spirobifluorene, benzofluorenyl, dibenzofluorenyl, phenanthryl, phenanthrenyl, anthracenyl, propadienylfluorenyl, triphenylene, pyrenyl, perylenyl, tetrabenzo[α]pyrenyl, picenyl, perylenyl, pentaphenyl, hexahelicene, pentahelicene, rugbyl, coronenyl, ovalenyl, 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 32at least one of the following substituted phenyl, biphenyl, terphenyl, cyclopentadienyl, indenyl, naphthyl, azulyl, cycloheptatrienyl, dicyclopentadienylphenyl, acenaphthyl, fluorene, spirobifluorene, benzofluorenyl, dibenzofluorenyl, phenanthryl, phenanthrenyl, anthracenyl, propadienylfluorenyl, triphenylene, pyrenyl, perylenyl, condensed tetraphenyl, picenyl, perylene, pentaphenyl, condensed hexaphenyl, condensed pentaphenyl, rubicenyl, coronenyl, ovalenyl, thienyl, furyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothienyl, dibenzofuranyl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, and pyridyl; and Q 31 to Q 33 may be the same as above. In an exemplary embodiment of the present disclosure, R in Formula 201 201 to R 203 at least one of which may be independently selected from: fluorenyl, spirobifluorene, carbazolyl, dibenzofuranyl, and dibenzothienyl; and each independently selected from deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, formamido, hydrazino, hydrazo, C 1 -C 20 alkyl, C 1 -C 20 alkoxy, cyclopentyl, cyclohexyl, cycloheptyl, cyclopentenyl, cyclohexenyl, phenyl, biphenyl, terphenyl, phenyl substituted with C 1 -C 10 alkyl, phenyl substituted with -F, naphthyl, fluorenyl, spirobifluorene, carbazolyl, dibenzofuranyl, and dibenzothienyl substituted with at least one of fluorenyl, spirobifluorene, carbazolyl, dibenzofuranyl, and dibenzothienyl, but the present disclosure is not limited thereto. In an exemplary embodiment of the present disclosure, in Formula 202, i) R 201 and R 202 may be linked by a single bond, and / or R 203 and R 204 may be linked by a single bond. In an exemplary embodiment of the present disclosure, R in Formula 201 201 to R 204 at least one of which may be independently selected from: carbazolyl; and each independently selected from deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, formamidyl, hydrazino, hydrazo, C 1 -C 20 alkyl, C 1 -C 20 alkoxy, cyclopentyl, cyclohexyl, cycloheptyl, cyclopentenyl, cyclohexenyl, phenyl, biphenyl, terphenyl, phenyl substituted with C 1 -C 10 alkyl, phenyl substituted with -F, naphthyl, fluorenyl, spirobifluorenyl, carbazolyl, carbazolyl substituted with at least one of dibenzofuranyl and dibenzothiophenyl, but the present disclosure is not limited thereto. The compound represented by Formula 201 can be represented by Formula 201A: <Chemical Formula 201A> . In an exemplary embodiment of the present disclosure, the compound represented by Formula 201 can be represented by the following Chemical Formula 201A(1), but the present disclosure is not limited thereto: <Chemical Formula 201A(1)> . In an exemplary embodiment of the present disclosure, the compound represented by Formula 201 can be represented by the following Chemical Formula 201A-1, but the present disclosure is not limited thereto: <Chemical Formula 201A-1> . In an exemplary embodiment of the present disclosure, the compound represented by Formula 202 can be represented by the following Chemical Formula 202A: <Chemical Formula 202A> In an exemplary embodiment of the present disclosure, the compound represented by Formula 202 can be represented by the following Chemical Formula 202A-1, but the present disclosure is not limited thereto: <Chemical Formula 202A-1> . In Chemical Formulas 201A, 201A(1), 201A-1, 202A, and 202A-1, L 201 to L 203 、xa1 to xa3, xa5, and R 202 to R 204 may be the same as those above, R 211 and R 212 may be the same as that of R 203 and is related to the description in R 213 to R 217 may each independently be selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, formamido, hydrazino, hyponitrous, C 1 -C 20 alkyl, C 1 -C 20 alkoxy, cyclopentyl, cyclohexyl, cycloheptyl, cyclopentenyl, cyclohexenyl, phenyl, biphenyl, terphenyl, phenyl substituted with C 1 -C 10 alkyl, phenyl substituted with -F, bicyclopentadienyl, indenyl, naphthyl, azulenyl, bicycloheptatrienyl, dicyclopentadienylphenyl, acenaphthyl, fluorene, spirobifluorene, benzofluorenyl, dibenzofluorenyl, phenalenyl, phenanthryl, anthryl, propadienylfluorene, terphenyl, pyrenyl, [oxa]yl, condensed tetraphenyl, picenyl, perylenyl, pentaphenyl, condensed hexaphenyl, condensed pentaphenyl, rugyl, coronenyl, eulenyl, thienyl, furyl, carbazolyl, indolyl, isoindolyl, benzofuryl, benzothienyl, dibenzofuryl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, and pyridyl. The hole transport region may include at least one compound selected from compounds HT1 to HT39, but the present disclosure is not limited thereto: . The thickness of the hole transport region can range from about 100 Å to about 10,000 Å, for example, from about 100 Å to about 1,000 Å. When the hole transport region includes at least one of a hole injection layer and a hole transport layer, the thickness of the hole injection layer can range from about 100 Å to about 9,000 Å, for example, from about 100 Å to about 1,000 Å, and the thickness of the hole transport layer can range from about 50 Å to about 2,000 Å, for example, from about 100 Å to about 1,500 Å. 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. The light-emitting auxiliary layer can increase the light-emitting efficiency by compensating for the optical resonance distance according to the wavelength of the light emitted from the light-emitting layer, and the electron blocking layer can block the electron current from the electron transport region. The light-emitting auxiliary layer and the electron blocking layer can include the materials as described above. [p-dopant] In addition to these materials, the hole transport region can further include a charge generation material for enhancing the conductive characteristics. The charge generation material can be uniformly or non-uniformly distributed in the hole transport region. For example, the charge generation material can be a p-dopant. In an exemplary embodiment of the present disclosure, the lowest unoccupied molecular orbital (LUMO) of the p-dopant can be -3.5 eV or lower. The p-dopant can include at least one selected from quinone derivatives, metal oxides, and cyano-containing compounds, but the present disclosure is not limited thereto. In an exemplary embodiment of the present disclosure, the p-dopant can be selected from: Quinone derivatives such as tetracyanoquinodimethane (TCNQ) and 2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane (F4-TCNQ); Metal oxides such as tungsten oxide or molybdenum oxide; 1,4,5,8,9,11-hexaazatriphenylene-hexacarbonitrile (HAT-CN); and The compound represented by Chemical Formula 221, but the present disclosure is not limited thereto. <HAT-CN> <F4-TCNQ> <Chemical Formula 221> 。 In Chemical Formula 221, R 221 to R 223 may each independently be selected from substituted or unsubstituted C 3 -C 10 cycloalkyl, substituted or unsubstituted C 1 -C 10 heterocycloalkyl, substituted or unsubstituted C 3 -C 10 cycloalkenyl, substituted or unsubstituted C 2 -C 10 heterocycloalkenyl, substituted or unsubstituted C 6 -C 60 aryl, substituted or unsubstituted C 1 -C 60 heteroaryl, substituted or unsubstituted monovalent non-aromatic fused polycyclic group, and substituted or unsubstituted monovalent non-aromatic fused heteropolycyclic group, wherein at least one of R 221 to R 223 may have a substituent selected from cyano, -F, -Cl, -Br, -I, C 1 -C 20 alkyl substituted with -F, C 1 -C 20 alkyl substituted with -Cl, C 1 -C 20 alkyl substituted with -Br, and C 1 -C 20 alkyl substituted with -I. [Light-emitting layer in organic layer 150] When the organic light-emitting device 10 is a full-color organic light-emitting device, the light-emitting layer can be patterned into a red light-emitting layer, a green light-emitting layer, or a blue light-emitting layer according to sub-pixels. In an exemplary embodiment of the present disclosure, the light-emitting layer can have a stacked structure of two or more layers selected from a red light-emitting layer, a green light-emitting layer, and a blue light-emitting layer, where two or more layers are in contact with each other or separated from each other. In an exemplary embodiment of the present disclosure, the light-emitting layer can include a light-emitting layer of two or more materials selected from a red light-emitting material, a green light-emitting material, and a blue light-emitting material, where two or more materials are mixed with each other in a single layer to emit white light. The light-emitting layer can include a host and a dopant. The dopant can include at least one selected from a phosphorescent dopant and a fluorescent dopant. Based on 100 parts by weight of the host, generally, the dopant mass in the light-emitting layer can be in the range of about 0.01 to about 15 parts by weight, but the present disclosure is not limited thereto. The thickness of the light-emitting layer can be in the range of about 100 Å to about 1,000 Å, for example, about 200 Å to about 600 Å. When the thickness of the light-emitting layer is within this range, excellent light-emitting characteristics can be obtained without significantly increasing the driving voltage. [Host in the light-emitting layer] In an exemplary embodiment of the present disclosure, the host can include a compound represented by Chemical Formula 301 below. <Chemical Formula 301> [Ar 301 xb11 -[(L 301 ) xb1 -R 301 xb21 In Chemical Formula 301, Ar 301 can be a substituted or unsubstituted C 5 -C 60 carbocyclic group or a substituted or unsubstituted C 1 -C 60 heterocyclic group, xb11 can be 1, 2, or 3, L 301 can be selected from a substituted or unsubstituted C 3 -C 10 cycloalkylidene, substituted or unsubstituted C 1 -C 10 heterocycloalkylidene, substituted or unsubstituted C 3 -C 10 cycloalkenylidene, substituted or unsubstituted C 2 -C 10 heterocycloalkenylidene, substituted or unsubstituted C 6 -C 60 arylidene, substituted or unsubstituted C 1 -C 60 heteroarylidene, substituted or unsubstituted divalent non-aromatic fused polycyclic group and substituted or unsubstituted divalent non-aromatic fused heteropolycyclic group, xb1 can be an integer from 0 to 5, R 301 can be selected from deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, formamido, hydrazino, hyponitrous, substituted or unsubstituted C 1 -C 60 alkyl, substituted or unsubstituted C 2 -C 60 alkenyl, substituted or unsubstituted C 2 -C 60 alkynyl, substituted or unsubstituted C 1 -C 60 alkoxy, substituted or unsubstituted C 3 -C 10 cycloalkyl, substituted or unsubstituted C 1 -C 10 heterocycloalkyl, substituted or unsubstituted C 3 -C 10 Cycloalkenyl, substituted or unsubstituted C 2 -C 10 Heterocycloalkenyl, substituted or unsubstituted C 6 -C 60 Aryl, substituted or unsubstituted C 6 -C 60 Aryloxy, substituted or unsubstituted C 6 -C 60 Arylthio, substituted or unsubstituted C 1 -C 60 Heteroaryl, substituted or unsubstituted monovalent non-aromatic fused polycyclic group, substituted or unsubstituted monovalent non-aromatic fused 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 ), xb21 can be an integer from 1 to 5, and Q 301 to Q 303 can each independently be selected from C 1 -C 10 alkyl, C 1 -C 10 alkoxy, phenyl, biphenyl, terphenyl, and naphthyl, but the present disclosure is not limited thereto. In an exemplary embodiment of the present disclosure, Ar in Formula 301 301 may be selected from: naphthylene, fluorenylene, spirobifluorenylene, benzofluorenylene, dibenzofluorenylene, phenalenylene, phenanthrenylene, anthrylene, propadienylidenefluorenylene, terphenylene, pyrenylene, perylenylene, quaterphenylenylene, picenylene, pentaphenylenylene, indenoanthracenylene group, dibenzofuranylene, and dibenzothiophenylene; each independently selected from deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, formamido, hydrazino, hydrazo, C 1 -C 20 alkyl, C 1 -C 20 alkoxy, phenyl, biphenyl, terphenyl, naphthyl, -Si(Q 31 )(Q 32 )(Q 33 )、-N(Q 31 )(Q 32 )、-B(Q 31 )(Q 32 )、-C(=O)(Q 31 )、-S(=O) 2 (Q 31 ) and -P(=O)(Q 31 )(Q 32) at least one of the substituted naphthylene, fluorene, spirobifluorene, benzofluorene, dibenzofluorene, acephenanthrylene, phenanthrene, anthracene, propadienylfluorene, terphenyl, pyrene, perylene, pentaphenyl, indenoanthracene, dibenzofuran, and dibenzothiophene; and Q 31 to Q 33 may each independently be selected from C 1 -C 10 alkyl, C 1 -C 10 alkoxy, phenyl, biphenyl, terphenyl, and naphthyl, but the present disclosure is not limited thereto. When xb11 in Formula 301 is 2 or greater, two or more Ar 301 may be linked via a single bond. In an exemplary embodiment of the present disclosure, the compound represented by Formula 301 may be represented by Formula 301-1 or 301-2: <Chemical Formula 301-1> <Chemical Formula 301-2> In Formulas 301-1 and 301-2, A 301 to A 304may each independently be selected from phenyl, naphthyl, phenanthrene group, fluoranthene group, triphenylene group, pyrene group, chrysene group, pyridine group, pyrimidine group, indene group, fluorene group, spirobifluorene group, benzofluorenyl group, dibenzofluorenyl group, indole group, carbazole group, benzocarbazole group, dibenzocarbazole group, furanyl group, benzofuranyl group, dibenzofuranyl group, naphthofuranyl group, benzonaphthofuranyl group, dinaphthofuranyl group, thiophene group, benzothiophene group, dibenzothiophene group, naphthothiophene group, benzonaphthothiophene group, and dinaphthothiophene group, X 301 may be O, S or N-[(L 304 ) xb4 -R 304 , R 311 to R 314 may each independently be selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, formamido, hydrazino, hydrazo, C 1 -C 20 alkyl, C 1 -C 20 alkoxy, phenyl, biphenyl, terphenyl, naphthyl, -Si(Q 31 )(Q 32 )(Q 33 )、-N(Q 31 )(Q 32 )、-B(Q 31 )(Q 32 )、-C(=O)(Q 31 )、-S(=O) 2 (Q 31 )以及-P(=O)(Q 31 )(Q 32 ), xb22 and xb23 can each independently be 0, 1 or 2, L 301 、xb1、R 301 以及Q 31 至Q 33 可與上述相同, L 302 至L 304 可與L 301 中有關的描述相同, xb2 to xb4 can be the same as the description related to xb1, and R 302 至R 304 可與R 301 中有關的描述相同。 In the exemplary embodiments of the present disclosure, L in Chemical Formulas 301, 301-1, 301-2 301 至L 304 可各獨立地選自: phenylene, naphthylene, fluorenylene, spirobifluorenylene, benzofluorenylene, dibenzofluorenylene, phenanthrylene, anthrylene, propadienylidenefluorenylene, terphenylenyl, pyrenyl, viologenyl, perylenyl, pentaphenylenyl, hexahelicenyl, pentahelicenyl, thienylene, furanylene, carbazolylene, indolylene, isoindolylene, benzofuranylene, benzothienylene, dibenzofuranylene, dibenzothienylene, benzocarbazolylene, dibenzocarbazolylene, dibenzothiophenylene, pyridinylene, imidazolylene group, pyrazolylene group, thiazolylene group, isothiazolylene group, oxazolylene group, isoxazolylene group, thiadiazolylene group, oxadiazolylene group, pyrazinylene group, pyrimidinylene group, pyridazinylene group, triazinylene group, quinolinylene group, isoquinolinylene group, benzoquinolinylene group, phthalazinylene group, naphthyridinylene group, quinoxalinylene group, quinazolinylene group, cinnolinylene group, phenanthridinylene group, acridinylene group, phenanthrolinylene group, phenazinylene group, benzimidazolylene group, isobenzothiazolylene group, benzoxazolylene group, isobenzoxazolylenegroup), triazolylene group, tetrazolylene group, imidazopyridinylene group, imidazopyrimidinylene group, and azacarbazolylene group; each independently selected from deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, formamido, hydrazino, hydrazo, C 1 -C 20 alkyl, C 1 -C 20 alkoxy, phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthryl, anthryl, propadienylfluorenyl, triphenylenyl, pyrenyl, viologenyl, perylenyl, pentaphenyl, hexa-peri-hexabenzocoronenyl, pentacenyl, thienyl, furyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothienyl, dibenzofuranyl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, pyridyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, thiadiazolyl, oxadiazolyl, pyrrolyl, 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 of the substituted phenylene, naphthylene, fluorenylene, spirobifluorenylene, benzofluorenylene, dibenzofluorenylene, phenanthrenylene, anthrylene, propadienylidenefluorenylene, terphenylenyl, pyrenyl, viologenyl, perylenyl, pentaphenylenyl, condensed hexaphenylenyl, condensed pentaphenylenyl, thienylene, furanylene, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothienyl, dibenzofuranyl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl, dibenzothiophenylene, pyridinyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, thiadiazolyl, oxadiazolyl, pyrrolyl, 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 Q 31 to Q 33 may be the same as above. In the exemplary embodiments of the present disclosure, R in Formulas 301, 301-1, 301-2 301 to R 304 may each independently be selected from: phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthryl, anthryl, propadienylfluorenyl, triphenylene, pyrenyl, viologenyl, perylenyl, pentaphenyl, hexaheptacene, pentacene, thienyl, furyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothienyl, dibenzofuranyl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, pyridyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, thiadiazolyl, oxadiazolyl, pyridazinyl, pyrimidinyl, pyrimidinyl, quinolinyl, isoquinolinyl, benzoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, isobenzothiazolyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, imidazopyridinyl, imidazopyrimidinyl, and azacarbazolyl; each independently selected from deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, formamido, hydrazino, hydrazo, C 1 -C 20 alkyl, C 1 -C 20 alkoxy, phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthryl, anthryl, propadienylfluorenyl, triphenylene, pyrenyl, viologenyl, perylenyl, pentaphenyl, hexaheptacene, pentacene, thienyl, furyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothienyl, dibenzofuranyl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, pyridyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, thiadiazolyl, oxadiazolyl, pyridazinyl, pyrimidinyl, pyrimidinyl, 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 ) in which at least one of phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthryl, anthryl, propadienylfluorenyl, triphenylene, pyrenyl, [oxadiazolyl], perylenyl, pentaphenyl, hexahelicene, pentahelicene, thienyl, furyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothienyl, dibenzofuranyl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, pyridyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, [oxazolyl], isoxazolyl, thiadiazolyl, [oxadiazolyl], [pyridazinyl], pyrimidinyl, [pyrimidinyl], [triazinyl], quinolinyl, isoquinolinyl, benzoquinolinyl, [phthalazinyl], naphthyridinyl, [quinoxalinyl], quinazolinyl, [cinnolinyl], phenanthridinyl, acridinyl, phenanthrolinyl, [phenazinyl], benzimidazolyl, isobenzothiazolyl, benz[oxazolyl], isobenz[oxazolyl], triazolyl, tetrazolyl, imidazopyridinyl, imidazopyrimidinyl and azacarbazolyl; and Q 31 to Q 33 may be the same as above. In an exemplary embodiment of the present disclosure, the matrix may comprise an alkaline earth metal complex. For example, the matrix may be selected from Be complexes (e.g., compound H55 as described below), Mg complexes, and Zn complexes. The substrate may include at least one selected from 9,10 - di(2 - naphthyl)anthracene (ADN), 2 - methyl - 9,10 - bis(naphthalen - 2 - yl)anthracene (MADN), 9,10 - di - (2 - naphthyl)-2 - t - butyl - anthracene (TBADN), 4,4′ - bis(N - carbazolyl)-1,1′ - biphenyl (CBP), 1,3 - di - 9 - carbazolylbenzene (mCP), 1,3,5 - tri(carbazol - 9 - yl)benzene (TCP), and compounds H1 to H55, but the present disclosure is not limited thereto: 。 [The phosphorescent dopant contained in the light - emitting layer included in the organic layer 150] The phosphorescent dopant may include an organometallic complex represented by the following Chemical Formula 401 and a ligand represented by Chemical Formula 402: <Chemical Formula 401> M(L 401 ) xc1 (L 402 ) xc2 , <Chemical Formula 402> In Chemical Formulas 401 and 402, M may be selected from iridium (Ir), platinum (Pt), palladium (Pd), osmium (Os), titanium (Ti), zirconium (Zr), hafnium (Hf), europium (Eu), terbium (Tb), rhodium (Rh), and thulium (Tm). L 401 may be selected from the ligands represented by Chemical Formula 402, and xc1 may be 1, 2, or 3. When xc1 is 2 or greater, two or more L 401 may be the same as or different from each other. L 402 may be an organic ligand, and xc2 may be an integer from 0 to 4. When xc2 is 2 or greater, two or more L 402 may be the same as or different from each other. X 401 to X 404 may each independently be nitrogen or carbon, X 401 X and X 403 may be linked via a single bond or a double bond, and X 402 X and X 404 may be linked via a single bond or a double bond, A 401 A and A 402 may each independently be 5 -C 60 a carbocyclic group or C 1 -C 60 a heterocyclic group, X 405 may 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(Q 411 )=*', Q 411 Q and Q 412 may be hydrogen, deuterium, C 1 -C 20 an alkyl group, C 1 -C 20 an alkoxy group, phenyl, biphenyl, terphenyl or naphthyl, X 406 may be a single bond, O or S, R 401 and R 402 may each independently be selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, formamido, hydrazino, hyponitrous, substituted or unsubstituted C 1 -C 20 alkyl, substituted or unsubstituted C 2 -C 60 alkenyl, substituted or unsubstituted C 2 -C 60 alkynyl, substituted or unsubstituted C 1 -C 20 alkoxy, substituted or unsubstituted C 3 -C 10 cycloalkyl, substituted or unsubstituted C 1 -C 10 heterocycloalkyl, substituted or unsubstituted C 3 -C 10 cycloalkenyl, substituted or unsubstituted C 2 -C 10 heterocycloalkenyl, substituted or unsubstituted C 6 -C 60 aryl, substituted or unsubstituted C 6 -C 60 aryloxy, substituted or unsubstituted C 6 -C 60 arylthio, substituted or unsubstituted C 1 -C 60 Heteroaryl, substituted or unsubstituted monovalent non-aromatic fused polycyclic group, substituted or unsubstituted monovalent non-aromatic fused 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 C 1 -C 10 -alkyl, C 1 -C 10 -alkoxy, C 6 -C 20 -aryl, and C 1 -C 20 -heteroaryl, xc11 and xc12 can each independently be selected from integers from 0 to 10, and The * and *' in Chemical Formula 402 can represent the linkage points to M in Chemical Formula 401. In an exemplary embodiment of the present disclosure, A in Chemical Formula 402 401 and A 402Each may independently be selected from phenyl, naphthyl, fluorenyl, spirobifluorenyl, indenyl, pyrrolyl, thienyl, furyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, pyridyl, pyrazinyl, pyrimidinyl, pyridazinyl, quinolinyl, isoquinolinyl, benzoquinolinyl, quinoxalinyl, quinazolinyl, carbazolyl, benzimidazolyl, benzofuranyl, benzothienyl, isobenzothienyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, oxadiazolyl, triazinyl, dibenzofuranyl, and dibenzothienyl. In an exemplary embodiment of the present disclosure, in Chemical Formula 402, i) X 401 may be nitrogen, and X 402 may be carbon, or ii) X 401 and X 402 may each be nitrogen simultaneously. In an exemplary embodiment of the present disclosure, R in Chemical Formula 402 401 and R 402 may each independently be selected from: hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, formamido, hydrazino, hydrazono, C 1 -C 20 alkyl, and C 1 -C 20 alkoxy; each C 1 -C 20 alkyl and C 1 -C 20 alkoxy substituted with at least one selected from deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, formamido, hydrazino, hydrazono, phenyl, naphthyl, cyclopentyl, cyclohexyl, adamantanyl group, norbornanyl group, and norbornenyl group; Cyclopentyl, cyclohexyl, adamantyl, norbornyl, norbornenyl, phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, pyridyl, pyrrolyl, pyrimidinyl, pyrazinyl, triazinyl, quinolinyl, isoquinolinyl, quinoxalinyl, quinazolinyl, carbazolyl, dibenzofuranyl, and dibenzothiophenyl; Each independently selected from deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, formamido, hydrazino, hydrazo, C 1 -C 20 alkyl, C 1 -C 20 alkoxy, cyclopentyl, cyclohexyl, adamantyl, norbornyl, norbornenyl, phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, pyridyl, pyrrolyl, pyrimidinyl, pyrazinyl, triazinyl, quinolinyl, isoquinolinyl, quinoxalinyl, quinazolinyl, carbazolyl, dibenzofuranyl, and dibenzothiophenyl, which is substituted with at least one selected from cyclopentyl, cyclohexyl, adamantyl, norbornyl, norbornenyl, phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, pyridyl, pyrrolyl, pyrimidinyl, pyrazinyl, triazinyl, quinolinyl, isoquinolinyl, quinoxalinyl, quinazolinyl, carbazolyl, dibenzofuranyl, and dibenzothiophenyl; -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 Q 401 to Q 403 may each independently be selected from C 1 -C 10 alkyl, C 1 -C 10 alkoxy, phenyl, biphenyl, and naphthyl, but the present disclosure is not limited thereto. In an exemplary embodiment of the present disclosure, when xc1 in Formula 401 is 2 or greater, two A's in two or more L's 401 may optionally be linked to each other via a linking group X 401 or two A's in two or more L's 407 may optionally be linked to each other via a linking group X 401 (see Compounds PD1 to PD4 and PD7 shown below). X 402 and X 40 8 may each independently be a single bond, *-O-*', *-S-*', *-C(=O)-*', *-N(Q 407 )-*', *-C(Q 408 )-*', or *-C(Q 413 )=C(Q 413 )(Q 414 )-*' (where Q 413 )=C(Q 414 )-*' (where Q 413 and Q 414 may each independently be hydrogen, deuterium, C 1 -C 20 alkyl, C 1 -C 20 alkoxy, phenyl, biphenyl, terphenyl, or naphthyl, but the present disclosure is not limited thereto. L in Formula 401 402 It can be a mono-valent, di-valent or tri-valent organic ligand. For example, L402 can be selected from halogen, diketone (for example, acetylacetonate), carboxylic acid (for example, picolinate), -C(=O), isonitrile, -CN, and phosphorus (for example, phosphine or phosphite), but the present disclosure is not limited thereto. In an exemplary embodiment of the present disclosure, the phosphorescent dopant can be selected from, for example, compounds PD1 to PD25, but the present disclosure is not limited thereto: [Fluorescent dopant in the light-emitting layer] The fluorescent dopant can include an arylamine compound or a styrylamine compound. The fluorescent dopant can include a compound represented by the following Chemical Formula 501. <Chemical Formula 501> In Chemical Formula 501, Ar 501 can be a substituted or unsubstituted C 5 -C 60 carbocyclic group or a substituted or unsubstituted C 1 -C 60 heterocyclic group, L 501 to L 503 can each independently be selected from a substituted or unsubstituted C 3 -C 10 cycloalkylidene group, a substituted or unsubstituted C 1 -C 10 heterocycloalkylidene group, a substituted or unsubstituted C 3 -C 10 cycloalkenylidene group, a substituted or unsubstituted C 2 -C 10Vinylene group, substituted or unsubstituted C 6 -C 60 Arylene group, substituted or unsubstituted C 1 -C 60 Heteroarylene group, substituted or unsubstituted divalent non-aromatic condensed polycyclic group and substituted or unsubstituted divalent non-aromatic condensed heteropolycyclic group, xd1 to xd3 can each independently be an integer from 0 to 3, R 501 and R 502 can each independently be selected from substituted or unsubstituted C 3 -C 10 Cycloalkyl group, substituted or unsubstituted C 1 -C 10 Heterocycloalkyl group, substituted or unsubstituted C 3 -C 10 Cycloalkenyl group, substituted or unsubstituted C 2 -C 10 Heterocycloalkenyl group, substituted or unsubstituted C 6 -C 60 Aryl group, substituted or unsubstituted C 6 -C 60 Aryloxy group, substituted or unsubstituted C 6 -C 60 Arylthio group, substituted or unsubstituted C 1 -C 60 Heteroaryl group, substituted or unsubstituted monovalent non-aromatic condensed polycyclic group and substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group, and xd4 can be an integer from 1 to 6. In an exemplary embodiment of the present disclosure, Ar in Formula 501 501 may be selected from: naphthyl, heptalene group, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, acephenanthrylenyl, phenanthrenyl, anthracenyl, propadienylfluorenyl, terphenyl, pyrenyl, viologenyl, tetrabenzo[a,c,g,i]fluorene, picenyl, perylenyl, pentaphenyl, indenoanthracene group, and indenophenanthrene group; and each independently selected from deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, formamido, hydrazino, hydrazo, C 1 -C 20 alkyl, C 1 -C 20 alkoxy, phenyl, biphenyl, terphenyl, and naphthyl-substituted naphthyl, heptalene group, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, acephenanthrylenyl, phenanthrenyl, anthracenyl, propadienylfluorenyl, terphenyl, pyrenyl, viologenyl, tetrabenzo[a,c,g,i]fluorene, picenyl, perylenyl, pentaphenyl, indenoanthracene group, and indenophenanthrene group. In an exemplary embodiment of the present disclosure, L in Formula 501 501 to L 503 may each independently be selected from: phenylene, naphthylene, fluorenylene, spirobifluorenylene, benzofluorenylene, dibenzofluorenylene, phenanthrylene, anthrylene, propadienylfluorenylene, terphenylenyl, pyrenylene, viologenylyl, perylenylene, pentaphenylenyl, hexa-peri-hexabenzocoronenyl, pentaceneylene, thienylene, furylene, carbazolylene, indolylene, isoindolylene, benzofuranylene, benzothienylene, dibenzofuranylene, dibenzothienylene, benzocarbazolylene, dibenzocarbazolylene, dibenzosilolylene, and pyridinylene; and each independently selected from deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, formamido, hydrazino, hydrazo, C 1 -C 20 alkyl, C 1 -C 20A phenylene, naphthylene, fluorenylene, spirobifluorenylene, benzo[ghi]fluorenylene, dibenzo[ghi]fluorenylene, phenanthrylene, anthrylene, propa-2,4-dien-1-ylidenefluorenylene, terphenylenylene, pyrenylene, [2,2'-bithiophen-5-yl]phenyl, perylenylene, pentaphenyl, hexa-peri-hexabenzocoronylene, pentacenequinone, thienyl, furyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothienyl, dibenzofuranyl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, or pyridinyl group, which is substituted with at least one of an alkoxy, phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spirobifluorenyl, benzo[ghi]fluorenyl, dibenzo[ghi]fluorenyl, phenanthryl, anthryl, propa-2,4-dien-1-ylidenefluorenyl, terphenylenyl, pyrenyl, [2,2'-bithiophen-5-yl]phenyl, perylenyl, pentaphenyl, hexa-peri-hexabenzocoronylene, pentacenequinone, thienyl, furyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothienyl, dibenzofuranyl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, and pyridinyl group. In an exemplary embodiment of the present disclosure, R in Formula 501 501 and R 502 may each independently be selected from: a phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spirobifluorenyl, benzo[ghi]fluorenyl, dibenzo[ghi]fluorenyl, phenanthryl, anthryl, propa-2,4-dien-1-ylidenefluorenyl, terphenylenyl, pyrenyl, [2,2'-bithiophen-5-yl]phenyl, perylenyl, pentaphenyl, hexa-peri-hexabenzocoronylene, pentacenequinone, thienyl, furyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothienyl, dibenzofuranyl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, and pyridinyl group; and each independently be selected from deuterium, -F, -Cl, -Br, -I, a hydroxyl, cyano, nitro, formamido, hydrazino, hydrazo, C 1 -C 20 alkyl, C 1 -C 20 alkoxy, phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spirobifluorenyl, benzo[ghi]fluorenyl, dibenzo[ghi]fluorenyl, phenanthryl, anthryl, propa-2,4-dien-1-ylidenefluorenyl, terphenylenyl, pyrenyl, [2,2'-bithiophen-5-yl]phenyl, perylenyl, pentaphenyl, hexa-peri-hexabenzocoronylene, pentacenequinone, thienyl, furyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothienyl, dibenzofuranyl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, pyridinyl, and -Si(Q 31 )(Q 32)(Q 33 ) at least one of the substituted phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthryl, anthryl, propadienylfluorenyl, triphenylene, pyrenyl, [oxadiazole]yl, perylenyl, pentaphenyl, hexaarylbenzene, pentalenyl, thienyl, furyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothienyl, dibenzofuranyl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl and pyridyl; and Q 31 to Q 33 may each independently be selected from C 1 -C 10 alkyl, C 1 -C 10 alkoxy, phenyl, biphenyl, terphenyl and naphthyl. In an exemplary embodiment of the present disclosure, xd4 in Formula 501 may be 2, but the present disclosure is not limited thereto. In an exemplary embodiment of the present disclosure, the fluorescent dopant may be selected from, for example, Compounds FD1 to FD22: . In an exemplary embodiment of the present disclosure, the fluorescent dopant may be selected from the following compounds, but the present disclosure is not limited thereto: . [Electron transport region in organic layer 150] The electron 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 multilayer structure including a plurality of layers containing a plurality of different materials. The electron transport region may include at least one layer selected from a buffer layer, a hole blocking layer, an electron control layer, an electron transport layer, and an electron injection layer, but the present disclosure is not limited thereto. In an exemplary embodiment of the present disclosure, the electron transport region may have an electron transport layer / electron injection layer structure, a hole blocking layer / electron transport layer / electron injection layer structure, an electron control layer / electron transport layer / electron injection layer structure, or a buffer layer / electron transport layer / electron injection layer structure, wherein the constituent layers of each structure are stacked on the light-emitting layer in sequence from the light-emitting layer. However, the present disclosure is not limited thereto. In addition to the condensed ring compound represented by Chemical Formula 1, the electron transport region (e.g., the buffer layer, hole blocking layer, electron control layer, and / or electron transport layer in the electron transport region) may include a metal-free compound containing at least one π electron-depleted nitrogen-containing ring. The "π electron-depleted nitrogen-containing ring" may represent a C 1 -C 60 heterocyclic group. In an exemplary embodiment of the present disclosure, 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 each having at least one *-N=*' moiety is condensed with at least one C 5 -C 60 carbocyclic group. Examples of the π electron-depleted nitrogen-containing ring may include imidazole, pyrazole, thiazole, isothiazole, oxazole, isoxazole, pyridine, pyrazine, pyrimidine, pyridazine, indazole, quinoline, isoquinoline, benzoquinoline, phthalazine, naphthyridine, quinoxaline, quinazoline, benzquinazoline, phenanthridine, acridine, phenanthroline, phenazine, benzimidazole, isobenzothiazole, benzoxazole, isobenzoxazole, triazole, tetrazole, oxadiazole, triazine, thiadiazole, imidazopyridine, imidazopyrimidine, oxazolopyridyl, and azacarbazole, but the present disclosure is not limited thereto. In an exemplary embodiment of the present disclosure, in addition to the condensed ring compound represented by Chemical Formula 1, the electron transport region may further include a compound represented by Chemical Formula 601. <Chemical Formula 601> [Ar 601 xe11 -[(L 601 ) xe1 -R 601 xe21 . In Chemical Formula 601, Ar 601 may be a substituted or unsubstituted C 5 -C 60 carbocyclic group or a substituted or unsubstituted C 1 -C 60 heterocyclic group, xe11 may be 1, 2 or 3, L 601 may be selected from a substituted or unsubstituted C 3 -C 10 cycloalkyl group, a substituted or unsubstituted C 1 -C 10 heterocycloalkyl group, a substituted or unsubstituted C 3 -C 10 cycloalkenyl group, a substituted or unsubstituted C 2 -C 10 heterocycloalkenyl group, a substituted or unsubstituted C 6 -C 60 aryl group, a substituted or unsubstituted C 1 -C 60 heteroaryl group, a substituted or unsubstituted divalent non-aromatic fused polycyclic group and a substituted or unsubstituted divalent non-aromatic fused heteropolycyclic group, xe1 may be an integer from 0 to 5, R 601 may be selected from a substituted or unsubstituted C 3 -C 10 cycloalkyl group, a substituted or unsubstituted C 1 -C 10 heterocycloalkyl group, a substituted or unsubstituted C 3-C 10 Cycloalkenyl, substituted or unsubstituted C 2 -C 10 Heterocycloalkenyl, substituted or unsubstituted C 6 -C 60 Aryl, substituted or unsubstituted C 6 -C 60 Aryloxy, substituted or unsubstituted C 6 -C 60 Arylthio, substituted or unsubstituted C 1 -C 60 Heteroaryl, substituted or unsubstituted monovalent non-aromatic fused polycyclic group, substituted or unsubstituted monovalent non-aromatic fused heteropolycyclic group, -Si(Q 601 )(Q 602 )(Q 603 )、-C(=O)(Q 601 )、-S(=O) 2 (Q 601 )以及-P(=O)(Q 601 )(Q 602 ), Q 601 至Q 603 可各獨立地為C 1 -C 10 烷基、C 1 -C 10 烷氧基、苯基、聯苯基、三聯苯基或萘基,且 xe21 can be an integer from 1 to 5. In an exemplary embodiment of the present disclosure, at least one Ar in the xe11 number 601 and / or at least one R in xe21 number 601 may include a nitrogen-containing ring with π electron depletion. In an exemplary embodiment of the present disclosure, the ring Ar in Formula 601 601 may be selected from: phenyl, naphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, acenaphthylenyl, phenanthrenyl, anthracenyl, propadienylfluorenyl, terphenyl, pyrenyl, [oxalyl]yl, condensed tetraphenyl, picenyl, perylenyl, pentaphenyl, indenoanthracenyl, dibenzofuranyl, dibenzothiophenyl, carbazolyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, [oxazolyl]yl, isoxazolyl, pyridyl, pyrazinyl, pyrimidinyl, pyridazinyl, indazolyl, purinyl, quinolinyl, isoquinolinyl, benzoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, benzoquinoxalinyl, [oxazinyl]yl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, isobenzothiazolyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, [oxadiazolyl]yl, triazinyl, thiadiazolyl, imidazopyridinyl, imidazopyrimidinyl, and azacarbazolyl; and each independently selected from deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, formamido, hydrazino, hydrazono, C 1 -C 20 alkyl, C 1 -C 20 alkoxy, phenyl, biphenyl, terphenyl, naphthyl, -Si(Q 31 )(Q 32 )(Q 33 )、-S(=O) 2 (Q 31 ) and -P(=O)(Q 31 )(Q 32) at least one of the substituted phenyl, naphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, acenaphthylenyl, phenanthrenyl, anthracenyl, propadienylfluorenyl, terphenyl, pyrenyl, [oxalyl]yl, condensed tetraphenyl, picenyl, perylenyl, pentaphenyl, indenoanthracenyl, dibenzofuranyl, dibenzothiophenyl, carbazolyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, [oxazolyl], isoxazolyl, pyridyl, [pyridazinyl], pyrimidinyl, [pyrimidinyl], indazolyl, purinyl, quinolinyl, isoquinolinyl, benzoquinolinyl, [phthalazinyl], naphthyridinyl, [quinoxalinyl], quinazolinyl, benzoquinazolinyl, [oxazinyl], phenanthridinyl, acridinyl, phenanthrolinyl, [phenazinyl], benzimidazolyl, isobenzothiazolyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, [oxadiazolyl], [triazinyl], thiadiazolyl, imidazopyridyl, imidazopyrimidinyl, and azacarbazolyl; and Q 31 to Q 33 may each independently be selected from C 1 -C 10 alkyl, C 1 -C 10 alkoxy, phenyl, biphenyl, terphenyl, and naphthyl. When xe11 in Formula 601 is 2 or greater, two or more Ar 601 may be linked via a single bond. In an exemplary embodiment of the present disclosure, Ar in Formula 601 601 may be anthracenyl. In an exemplary embodiment of the present disclosure, the compound represented by Formula 601 may be represented by Formula 601-1: <Formula 601-1> In Formula 601-1, X 614 may be N or C(R 614 ), X 615 may be N or C(R 615 ), X 616 may be N or C(R 616), and selected from X 614 to X 616 at least one of which may be N, L 611 to L 613 may each independently be the same as the description related to L 601 in xe611 to xe613 may each independently be the same as the description related to xe1, R 611 to R 613 may each independently be the same as the description related to R 601 in, and R 614 to R 616 may each independently be selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, formamidyl, hydrazino, hyponitrous, C 1 -C 20 alkyl, C 1 -C 20 alkoxy, phenyl, biphenyl, and naphthyl. In the exemplary embodiments of the present disclosure, L in Formulas 601 and 601-1 601 and L 611 to L 613 may each independently be selected from: phenylenes, naphthylenes, fluorenylenes, spirobifluorenylenes, benzofluorenylenes, dibenzofluorenylenes, phenanthrenylenes, anthrenylenes, propadienylidenofluorenylenes, terphenylenes, pyrenylenes, viologenylylenes, perylenylenes, quinquephenylenes, hexahelicenylenes, pentahelicenylenes, thienylenes, furylenes, carbazolylenes, indolylenes, isoindolylenes, benzofurylenes, benzothienylenes, dibenzofurylenes, dibenzothienylenes, benzocarbazolylenes, dibenzocarbazolylenes, dibenzosilolylenes, pyridinylenes, imidazolylenes, pyrazolylenes, thiazolylenes, isothiazolylenes, oxazolylenes, isoxazolylenes, thiadiazolylenes, oxadiazolylenes, pyrrolylenes, pyrimidinylenes, pyridazinylenes, triazinylenes, quinolinylenes, isoquinolinylenes, benzoquinolinylenes, phthalazinylenes, naphthyridinylenes, quinoxalinylenes, quinazolinylenes, cinnolinylenes, phenanthridinylenes, acridinylenes, phenanthrolinylenes, phenazinylenes, benzimidazolylenes, isobenzothiazolylenes, benzoxazolylenes, isobenzoxazolylenes, triazolylenes, tetrazolylenes, imidazopyridinylenes, imidazopyrimidinylenes, and azacarbazolylenes; and each independently selected from deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, formamido, hydrazino, hydrazo, C 1 -C 20 alkyl, C 1 -C 20At least one of alkoxy, phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthryl, anthryl, propadienylfluorenyl, triphenylene, pyrenyl, viologenyl, perylenyl, pentaphenyl, condensed hexaphenyl, condensed pentaphenyl, thienyl, furyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothienyl, dibenzofuranyl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, pyridyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, thiadiazolyl, oxadiazolyl, pyridinyl, 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-substituted phenylene, naphthylene, fluorenylene, spirobifluorenylene, benzofluorenylene, dibenzofluorenylene, phenanthrylene, anthrylene, propadienylfluorenylene, triphenylene, pyrenylene, viologenylene, perylenylene, pentaphenyl, condensed hexaphenyl, condensed pentaphenyl, thienylene, furylene, carbazolylene, indolylene, isoindolylene, benzofuranylene, benzothienylene, dibenzofuranylene, dibenzothienylene, benzocarbazolylene, dibenzocarbazolylene, dibenzosilolylene, pyridinylene, imidazolylene, pyrazolylene, thiazolylene, isothiazolylene, oxazolylene, isoxazolylene, thiadiazolylene, oxadiazolylene, pyridinylene, 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, but the disclosure is not limited thereto. In exemplary embodiments of the disclosure, xe1 and xe611 to xe613 in Formulas 601 and 601-1 may each independently be 0, 1, or 2. In exemplary embodiments of the disclosure, R in Formulas 601 and 601-1 601 and R 611 to R 613 may each independently be selected from: phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthryl, anthryl, propadienylfluorenyl, triphenylene, pyrenyl, viologenyl, perylenyl, pentaphenyl, hexahelicene, pentahelicene, thienyl, furyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothienyl, dibenzofuranyl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, pyridyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, thiadiazolyl, oxadiazolyl, pyrrolyl, 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; each independently selected from deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, formamido, hydrazino, hydrazo, C 1 -C 20 alkyl, C 1 -C 20A phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthrenyl, anthracenyl, propadienylfluorenyl, triphenylene, pyrenyl, viologenyl, perylenyl, pentaphenyl, hexahelicene, pentahelicene, thienyl, furyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothienyl, dibenzofuranyl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, pyridyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, thiadiazolyl, oxadiazolyl, pyrrolyl, pyrimidinyl, pyridazinyl, triazinyl, quinolinyl, isoquinolinyl, benzoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, isobenzothiazolyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, imidazopyridyl, imidazopyrimidinyl, and azacarbazolyl, wherein at least one of the substituents is selected from the group consisting of phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spirobifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthrenyl, anthracenyl, propadienylfluorenyl, triphenylene, pyrenyl, viologenyl, perylenyl, pentaphenyl, hexahelicene, pentahelicene, thienyl, furyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothienyl, dibenzofuranyl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, pyridyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, thiadiazolyl, oxadiazolyl, pyrrolyl, pyrimidinyl, pyridazinyl, triazinyl, quinolinyl, isoquinolinyl, benzoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, isobenzothiazolyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, imidazopyridyl, imidazopyrimidinyl, and azacarbazolyl; -S(=O) 2 (Q 601 ) and -P(=O)(Q 601 )(Q 602 ); and Q 601 and Q 602 may be the same as those described above. In addition to the condensed ring compound represented by Chemical Formula 1, the electron transport region may include, for example, at least one compound selected from Compounds ET1 to ET36, but the present disclosure is not limited thereto: In an exemplary embodiment of the present disclosure, in addition to the condensed ring compound represented by Chemical Formula 1, 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), tris(8-hydroxyquinolino)aluminum (Alq 3 ), bis(2-methyl-8-quinolinolato-N1,O8)-(1,1’-biphenyl-4-olato)aluminum (BAlq), 3-(biphenyl-4-yl)-5-(4-tert-butylphenyl)-4 H-1,2,4-triazole (3-(biphenyl-4-yl)-5-(4- tert-butylphenyl)-4-phenyl-4 H-1,2,4-triazole, TAZ), and 4-(naphthalen-1-yl)-3,5-diphenyl-4H-1,2,4-triazole (NTAZ). The thickness of the buffer layer, hole blocking layer, or electron control layer may be in the range of about 20 Å to about 1,000 Å, for example, about 30 Å to about 300 Å. When the thickness of the buffer layer, hole blocking layer, or electron control layer is within these ranges, the electron blocking layer may have excellent electron blocking characteristics or electron control characteristics without significantly increasing the driving voltage. The thickness of the electron transport layer may be in the range of about 100 Å to about 1,000 Å, for example, about 150 Å to about 500 Å. When the thickness of the electron transport layer is within the above ranges, the electron transport layer may have excellent electron transport characteristics without significantly increasing the driving voltage. In addition to the above materials, the electron transport region (e.g., the electron transport layer in the electron transport region) may further contain a metal-containing material. The metal-containing material may include at least one selected from alkali metal complexes and alkaline earth metal complexes. The alkali metal complex may include metal ions selected from Li ions, Na ions, K ions, Rb ions, and Cs ions, and the alkaline earth metal complex may include metal ions selected from Be ions, Mg ions, Ca ions, Sr ions, and Ba ions. The ligands coordinated with the metal ions of the alkali metal complex or alkaline earth metal complex may be selected from hydroxy quinoline, hydroxy isoquinoline, hydroxy benzoquinoline, hydroxy acridine, hydroxy phenanthridine, hydroxy phenylan oxazole, hydroxy phenylthiazole, hydroxy diphenylan oxadiazole, hydroxy diphenylthiadiazole, hydroxy phenylpyridine, hydroxy phenylbenzimidazole, hydroxy phenylbenzothiazole, bipyridine, phenanthroline, cyclopentadiene, but the present disclosure is not limited thereto. In an exemplary embodiment of the present disclosure, the metal-containing material may include a Li complex. The Li complex may include, for example, compound ET-D1 (lithium hydroxyquinolate) or compound ET-D2. The electron transport region may include an electron injection layer that facilitates the injection of electrons from the second electrode 190. The electron injection layer may be in direct contact with the second electrode 190. 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 multiple different materials, or iii) a multilayer structure including multiple layers containing multiple different materials. 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 a combination thereof. The alkali metal can be selected from, for example, Li, Na, K, Rb, and Cs. In an exemplary embodiment of the present disclosure, the alkali metal can be Li, Na, or Cs. In an exemplary embodiment of the present disclosure, the alkali metal can be Li or Cs, but the present disclosure is not limited thereto. The alkaline earth metal can be selected from, for example, Mg, Ca, Sr, and Ba. The rare earth metal can be selected from, for example, Sc, Y, Ce, Tb, Yb, and Gd. The alkali metal compound, alkaline earth metal compound, and rare earth metal compound can be selected from oxides and halides (for example, fluorides, chlorides, bromides, or iodides) of alkali metals, alkaline earth metals, and rare earth metals. The alkali metal compound can be selected from alkali metal oxides, such as, for example, Li 2 O, Cs 2 O, and K 2 O, and alkali metal halides, such as, for example, LiF, NaF, CsF, KF, LiI, NaI, CsI, KI, and RbI. In an exemplary embodiment of the present disclosure, the alkali metal compound can be selected from LiF, Li 2 O, NaF, LiI, NaI, CsI, and KI, but the present disclosure is not limited thereto. The alkaline earth metal compound can be selected from alkaline earth metal oxides, such as, for example, BaO, SrO, CaO, Ba x Sr 1-x O (0 < x < 1), Ba x Ca 1-x O (0 < x < 1). In an exemplary embodiment of the present disclosure, the alkaline earth metal compound can be selected from, for example, BaO, SrO, and CaO, but the present disclosure is not limited thereto. The rare earth metal compound can be selected from, for example, YbF 3 、ScF 3 、ScO 3 、Y 2 O 3 、Ce 2 O 3 、GdF 3 and TbF 3 。In exemplary embodiments of the present disclosure, the rare earth metal compound may be selected from, for example, YbF 3 , ScF 3 , TbF 3 , YbI 3 , ScI 3 and TbI 3 , but the present disclosure is not limited thereto. The alkali metal complex, alkaline earth metal complex, and rare earth metal complex may contain 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, and rare earth metal complex may each independently be selected from hydroxyquinoline, hydroxyisoquinoline, hydroxybenzoquinoline, hydroxyacridine, hydroxyphenanthridine, hydroxyphenyl[oxazole], hydroxyphenylthiazole, hydroxydiphenyl[oxadiazole], hydroxydiphenylthiadiazole, hydroxyphenylpyridine, hydroxyphenylbenzimidazole, hydroxyphenylbenzothiazole, bipyridine, phenanthroline, cyclopentadiene, but the present disclosure is not limited thereto. As described above, the electron injection layer may contain an 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. In exemplary embodiments of the present disclosure, the electron injection layer may further contain an organic material. When the electron injection layer further contains 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 distributed in the matrix containing the organic material. The thickness of the electron injection layer may be in the range of about 1 Å to about 100 Å, for example, about 3 Å to about 90 Å. When the thickness of the electron injection layer is within the above range, the electron injection layer may have satisfactory electron injection characteristics without significantly increasing the driving voltage. [Second electrode 190] The second electrode 190 may be disposed on the organic layer 150 having the above structure. The second electrode 190 may be a cathode that is an electron injection electrode, and in this aspect, the material used to form the second electrode 190 may be selected from metals, alloys, conductive compounds, and combinations thereof having a relatively low work function. 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 present disclosure is not limited thereto. The second electrode 190 may be a transmissive electrode, a semi-transmissive electrode, or a reflective electrode. The second electrode 190 may have a single-layer structure or a multilayer structure including two or more layers. [Descriptions of FIGS. 2 to 4] FIGS. 2 to 4 each show a cross-sectional schematic view of an organic light-emitting device, wherein: the organic light-emitting device 20 in FIG. 2 includes a first cover layer 210, a first electrode 110, an organic layer 150, and a second electrode 190 stacked in this order; the organic light-emitting device 30 in FIG. 3 includes a first electrode 110, an organic layer 150, a second electrode 190, and a second cover layer 220 stacked in this order; and the organic light-emitting device 40 in FIG. 4 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 order. Regarding FIGS. 2 to 4, the first electrode 110, the organic layer 150, and the second electrode 190 may be understood by referring to the descriptions presented in conjunction with FIG. 1. In the organic layer 150 in each of the organic light-emitting devices 20 and 40, the light generated in the light-emitting layer may pass outward through the first electrode 110, which is a semi-transmissive electrode or a transmissive electrode, and the first cover layer 210, and in the organic layer 150 in each of the organic light-emitting devices 30 and 40, the light generated in the light-emitting layer may pass outward through the second electrode 190, which is a semi-transmissive electrode or a transmissive electrode, and the second cover layer 220. The first cover layer 210 and the second cover layer 220 may increase the external light-emitting efficiency according to the principle of constructive interference. The first cover layer 210 and the second cover layer 220 may each independently be an organic cover layer including an organic material, an inorganic cover layer including an inorganic material, or a hybrid cover layer including an organic material and an inorganic material. The first covering layer 210 and the second covering layer 220 may each independently include at least one material selected from carbocyclic compounds, heterocyclic compounds, amine-based compounds, porphyrin derivatives, phthalocyanine derivatives, naphthalocyanine derivatives, alkali metal complexes, and alkaline earth metal complexes. The carbocyclic compounds, heterocyclic compounds, and amine-based compounds may optionally be substituted with substituents including at least one element selected from O, N, S, Se, Si, F, Cl, Br, and I. In exemplary embodiments of the present disclosure, the first covering layer 210 and the second covering layer 220 may each independently include a compound represented by Chemical Formula 201 or a compound represented by Chemical Formula 202. In exemplary embodiments of the present disclosure, the first covering layer 210 and the second covering layer 220 may each independently include, for example, compounds selected from compounds HT28 to HT33 and compounds CP1 to CP5, but the present disclosure is not limited thereto. Previously, the organic light-emitting device according to exemplary embodiments of the present disclosure has been described in connection with FIGS. 1 to 4. However, the present disclosure is not limited thereto. The layer constituting the hole transport region, the light-emitting layer, and the layer constituting the electron transport region may be formed in a specific region by using one or more suitable methods selected from vacuum deposition, spin coating, casting, Langmuir-Blodgett (LB) deposition, inkjet printing, laser printing, and laser-induced thermal imaging. When the layer constituting the hole transport region, the light-emitting layer, and the layer constituting the electron transport region are formed by vacuum deposition, for example, the vacuum deposition may consider the materials included in the layer to be formed and the structure of the layer to be formed, and be performed at a deposition temperature of about 100 °C to about 500 °C, a -8 torr to about 10 -3 torr and a deposition rate of about 0.01 Å / sec to about 100 Å / sec. When the layer constituting the hole transport region, the light-emitting layer, and the layer constituting the electron transport region are formed by spin coating, the spin coating may consider the materials included in the layer to be formed and the structure of the layer to be formed, and be performed at a coating speed of about 2,000 rpm to about 5,000 rpm and a heat treatment temperature of about 80 °C to about 200 °C. [General definition of substituents] The term "C 1 -C 60 "alkyl" means a straight-chain or branched monovalent saturated aliphatic hydrocarbon group having 1 to 60 carbon atoms, and examples thereof include methyl, ethyl, propyl, isobutyl, sec-butyl, tert-butyl, pentyl, isopentyl, and hexyl. The term "C 1 -C 60 alkylene" means a divalent group having the same structure as C 1 -C 60 alkyl. The term "C 2 -C 60 alkenyl" means a hydrocarbon group having at least one carbon-carbon double bond in the middle or at the end along C 2 -C 60 alkyl, and examples thereof include vinyl, propenyl, and butenyl. The term "C 2 -C 60 alkenylene" means a divalent group having the same structure as C 2 -C 60 alkenyl. The term "C 2 -C 60 alkynyl" means a hydrocarbon group having at least one carbon-carbon triple bond in the middle or at the end along C 2 -C 60 alkyl, and examples thereof include ethynyl and propynyl. The term "C 2 -C 60 alkynylene" means a divalent group having the same structure as C 2 -C 60 alkynyl. The term "C 1 -C 60 "Alkoxy" means a monovalent group represented by -OA 101 (where A 101 is C 1 -C 60 alkyl), and examples thereof include methoxy, ethoxy, and isopropoxy. The term "C 3 -C 10 cycloalkyl" means a monovalent saturated hydrocarbon monocyclic group having 3 to 10 carbon atoms, and examples thereof include cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, and cycloheptyl. The term "C 3 -C 10 cycloalkylidene" means a divalent group having the same structure as C 3 -C 10 cycloalkyl. The term "C 1 -C 10 heterocycloalkyl" means a monovalent monocyclic group having at least one heteroatom selected from N, O, Si, P, and S as a ring-forming atom and 1 to 10 carbon atoms, and examples thereof include 1,2,3,4-oxatriazolidinyl group, tetrahydrofuranyl group, and tetrahydrothienyl group. The term "C 1 -C 10 heterocycloalkylidene" means a divalent group having the same structure as C 1 -C 10 heterocycloalkyl. The term "C 3 -C 10"Cycloalkenyl" means a monovalent monocyclic group having 3 to 10 carbon atoms and at least one carbon-carbon double bond in its ring and being non-aromatic, and examples thereof include cyclopentenyl, cyclohexenyl, and cycloheptenyl. The term "C 3 -C 10 "cycloalkenylene" means a divalent group having the same structure as C 3 -C 10 cycloalkenyl. The term "C 2 -C 10 "heterocycloalkenyl" means a monovalent monocyclic group having at least one heteroatom selected from N, O, Si, P, and S as a ring-forming atom, 2 to 10 carbon atoms, and at least one double bond in its ring. C 2 -C 10 Non-limiting examples of heterocycloalkenyl include 2,3-dihydrofuranyl group and 2,3-dihydrothienyl group. The term "C 2 -C 10 "heterocycloalkenylene" means a divalent group having the same structure as C 2 C 10 heterocycloalkenyl. The term "C 6 -C 60 "aryl" means a monovalent group of a carbocyclic aromatic system having 6 to 60 carbon atoms, and the term "C 6 -C 60 "arylene" means a divalent group of a carbocyclic aromatic system having 6 to 60 carbon atoms. C 6 -C 60 Examples of aryl are phenyl, naphthyl, anthryl, phenanthryl, pyrenyl, and [oxalyl]yl. When C 6 -C 60 Aryl and / or C 6 -C 60 When each of the arylene groups contains two or more rings, these rings may be fused to each other. As used herein, the term "C 1 -C 60 heteroaryl" means a monovalent group having a heteroaromatic system containing at least one heteroatom selected from N, O, Si, P, and S as a ring-forming atom and 1 to 60 carbon atoms, and the term "C 1 -C 60 heteroarylene" means a divalent group having a carbocyclic aromatic system containing at least one heteroatom selected from N, O, Si, P, and S as a ring-forming atom and 1 to 60 carbon atoms. C 1 -C 60 Examples of heteroaryl are pyridyl, pyrimidinyl, pyrazinyl, pyridazinyl, triazinyl, quinolinyl, and isoquinolinyl. When C 1 -C 60 heteroaryl and / or C 1 -C 60 When each of the heteroarylene groups contains two or more rings, these rings may be fused to each other. As used herein, the term "C 6 -C 60 aryloxy" means -OA 102 (wherein A 102 is C 6 -C 60 aryl), and the term "C 6 -C 60 arylthio" means -SA 103 (wherein A 103 is C 6-C 60 aryl). As used herein, the term "C 1 -C 60 heteroaryloxy" means -OA 104 (wherein A 104 is C 1 -C 60 heteroaryl), and as used herein, the term "C 1 -C 60 heteroarylthio" means -SA 105 (wherein A 105 is C 1 -C 60 heteroaryl). As used herein, the term "monovalent non-aromatic fused polycyclic group" means a monovalent group having two or more rings fused to each other, with only carbon atoms as ring-forming atoms and without overall aromaticity in the entire molecular structure (for example, having 8 to 60 carbon atoms). Specific examples of the monovalent non-aromatic fused polycyclic group are fluorenyl groups. As used herein, the term "divalent non-aromatic fused polycyclic group" means a divalent group having the same structure as the monovalent non-aromatic fused polycyclic group. As used herein, the term "monovalent non-aromatic fused heteropolycyclic group" means 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, and without overall aromaticity in the entire molecular structure (for example, having 1 to 60 carbon atoms). Examples of the monovalent non-aromatic fused heteropolycyclic group are carbazolyl groups. As used herein, the term "divalent non-aromatic fused heteropolycyclic group" means a divalent group having the same structure as the monovalent non-aromatic fused heteropolycyclic group. As used herein, the term "C 5 -C 60 carbocyclic group" means a monocyclic or polycyclic group having 5 to 60 carbon atoms, and wherein the ring-forming atoms are only carbon atoms. C 5 -C 60 carbocyclic group can be an aromatic carbocyclic group or a non-aromatic carbocyclic group. C 5 -C 60 The carbocyclic group may be a ring such as a benzene group, a monovalent group such as a phenyl group, or a divalent group such as a phenylene group. In the exemplary embodiments of the present disclosure, depending on the number of substituents linked to C 5 -C 60 the carbocyclic group, C 5 -C 60 the carbocyclic group may be a trivalent group or a tetravalent group. The term "C 1 -C 60 heterocyclic group" as used herein means a group having the same structure as the C 1 -C 60 carbocyclic group, in which at least one heteroatom selected from N, O, Si, P, and S is used as a ring-forming atom in addition to carbon (the number of carbon atoms may range from 1 to 60). The heterocyclic group includes one or more heterocycles. Substituted C 5 -C 60 carbocyclic group, substituted C 1 -C 60 heterocyclic group, substituted C 3 -C 10 cycloalkylidene group, substituted C 1 -C 10 heterocycloalkylidene group, substituted C 3 -C 10 cycloalkenylene group, substituted C 1 -C 10 heterocycloalkenylene group, substituted C 6 -C 60Arylene, substituted C 1 -C 60 Heteroarylene, substituted divalent non-aromatic fused polycyclic group, substituted divalent non-aromatic fused heteropolycyclic group, substituted C 1 -C 60 Alkyl, substituted C 2 -C 60 Alkenyl, substituted C 2 -C 60 Alkynyl, substituted C 1 -C 60 Alkoxy, substituted C 3 -C 10 Cycloalkyl, substituted C 1 -C 10 Heterocycloalkyl, substituted C 3 -C 10 Cycloalkenyl, substituted C 1 -C 10 Heterocycloalkenyl, substituted C 6 -C 60 Aryl, substituted C 6 -C 60 Aryloxy, substituted C 6 -C 60 Arylthio, substituted C 1 -C 60 Heteroaryl, substituted C 1 -C 60 Heteroaryloxy, substituted C 1 -C 60 At least one substituent of a heteroarylthio group, a substituted monovalent non-aromatic fused polycyclic group, and a substituted monovalent non-aromatic fused heteropolycyclic group may be selected from: Deuterium (-D), -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, formamido, hydrazino, hyponitrous, C 1 -C 60 Alkyl, C 2 -C 60 Alkenyl, C 2 -C 60 Alkynyl and C 1 -C 60 Alkoxy; Each selected from deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, formamido, hydrazino, hyponitrous, C 3 -C 10 Cycloalkyl, C 1 -C 10 Heterocycloalkyl, C 3 -C 10 Cycloalkenyl, C 2 -C 10 Heterocycloalkenyl, C 6 -C 60 Aryl, C 6 -C 60 Aryloxy, C 6 -C 60 Arylthio, C 1 -C 60 Heteroaryl, C 1 -C 60 Heteroaryloxy, C 1 -C 60 Heteroarylthio, 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 )以及-P(=O)(Q 11 )(Q 12 )中之至少其一所取代之C 1 -C 60 Alkyl, C 2 -C 60 Alkenyl, C 2 -C 60 Alkynyl及C 1 -C 60 Alkoxy; C 3 -C 10 Cycloalkyl, C 1 -C 10 Heterocycloalkyl, C 3 -C 10 Cycloalkenyl, C 2 -C 10 Heterocycloalkenyl, C 6 -C 60 Aryl, C 6 -C 60 Aryloxy, C 6 -C 60 Arylthio, C 1 -C 60 Heteroaryl, C 1 -C 60 Heteroaryloxy, C 1 -C 60 Heteroarylthio, monovalent non-aromatic fused polycyclic group and monovalent non-aromatic fused heteropolycyclic group; Each independently selected from deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, formamido, hydrazino, hydrazo, C 1 -C 60 Alkyl, C 2 -C 60 Alkenyl, C 2 -C 60 Alkynyl, C 1 -C 60 Alkoxy, C 3 -C 10 Cycloalkyl, C 1 -C 10 Heterocycloalkyl, C 3 -C 10 Cycloalkenyl, C 2 -C 10 Heterocycloalkenyl, C 6 -C 60 Aryl, C 6 -C 60 Aryloxy, C 6 -C 60 Arylthio, C 1 -C 60 Heteroaryl, C 1 -C 60 Heteroaryloxy, C 1 -C 60 Heteroarylthio, 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 ) where at least one of C 3 -C 10 Cycloalkyl, C 1 -C 10 Heterocycloalkyl, C 3 -C 10 Cycloalkenyl, C 2 -C 10 Heterocyclic alkenyl, C 6 -C 60 Aryl, C 6 -C 60 Aryloxy, C 6 -C 60 Arylthio, C 1 -C 60 Heteroaryl, C 1 -C 60 Heteroaryloxy, C 1 -C 60 Heteroarylthio, monovalent non-aromatic condensed polycyclic group and monovalent non-aromatic condensed heteropolycyclic group; -Si(Q 31 )(Q 32 )(Q 33 )、-N(Q 31 )(Q 32 )、-B(Q 31 )(Q 32 )、-C(=O)(Q 31 )、-S(=O) 2 (Q 31 ) and -P(=O)(Q 31 )(Q 32 );and Q 11 to Q 13 、Q 21 to Q 23and Q 31 to Q 33 may each independently be selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, formamido, hydrazino, hydrazo, C 1 -C 60 alkyl, C 2 -C 60 alkenyl, C 2 -C 60 alkynyl, C 1 -C 60 alkoxy, C 3 -C 10 cycloalkyl, C 1 -C 10 heterocycloalkyl, C 3 -C 10 cycloalkenyl, C 2 -C 10 heterocycloalkenyl, C 6 -C 60 aryl, C 1 -C 60 heteroaryl, C 1 -C 60 heteroaryloxy, C 1 -C 60 heteroarylthio, monovalent non-aromatic fused polycyclic group, monovalent non-aromatic fused heteropolycyclic group, biphenyl and terphenyl. The term "Ph" as used herein means phenyl, the term "Me" as used herein means methyl, the term "Et" as used herein means ethyl, the term "ter-Bu or Bu tThe term "tert-butyl" means the third butyl group, and the term "OMe" used herein means methoxy group. The term "biphenyl" used herein means "phenyl substituted by phenyl". In other words, "biphenyl" means having a C 6 -C 60 substituted phenyl with aryl as a substituent. The term "terphenyl" used herein means "phenyl substituted by biphenyl". In other words, "terphenyl" means having a C 6 -C 60 aryl-substituted C 6 -C 60 substituted phenyl with aryl as a substituent. Unless otherwise defined, each of * and *' used herein represents the bonding site with an adjacent atom in the corresponding chemical formula. The condensed ring compound represented by Chemical Formula 1 can be synthesized by using conventional organic synthesis methods. From the following exemplary embodiments, the synthesis method of the condensed ring compound can be understood by those of ordinary skill in the art. Hereinafter, the compounds according to the exemplary embodiments of the present disclosure and the organic light-emitting devices according to the exemplary embodiments of the present disclosure will be described in detail with reference to synthesis examples and examples. The phrase "using B instead of A" when describing the synthesis examples means using the same molar equivalent of B to replace A. [Synthesis Example] Synthesis Example 1: Synthesis of Compound 1 (1) Synthesis of Intermediate 1-1 2.0 g (10 mmol) of 2'-bromoacetophenone, 1.8 g (10 mmol) of N-bromosuccinimide (NBS), 1.9 g (10 mmol) of p-toluene sulfonic acid, and 200 mL of acetonitrile were added to a reaction vessel. Then, the resulting mixture was refluxed and stirred under a nitrogen atmosphere for 4 hours. After the reaction was completed, the reaction mixture was cooled to room temperature and distilled under reduced pressure. Next, an extraction process was performed on it using water and 100 mL of ethyl acetate. The organic layer collected from it was dried using anhydrous magnesium sulfate and distilled under reduced pressure to complete the preparation of 2.50 g (yield: 90%) of Intermediate 1-1. Intermediate 1-1 was used in the subsequent reaction without further purification. (2) Synthesis of Intermediate 1-2 2.78 g (10 mmol) of Intermediate 1-1, 1.24 g (15 mmol) of sodium hydrogen carbonate, 1.73 g (10 mmol) of 2-amino-5-bromopyridine, and 200 mL of ethanol were added to a reaction vessel, and the resulting mixture was refluxed and stirred under a nitrogen atmosphere for 4 hours. After the reaction was completed, the reaction mixture was cooled to room temperature and distilled under reduced pressure. Next, an extraction process was performed on it using water and 100 mL of ethyl acetate. The organic layer collected from it was dried using anhydrous magnesium sulfate and distilled under reduced pressure to obtain a crude product. The crude product was purified by column chromatography to complete the preparation of 2.28 g (yield: 65%) of Intermediate 1-2. (3) Synthesis of Intermediate 1-3 3.52 g (10 mmol) of Intermediate 1-2, 3.3 g (30 mmol) of potassium sulfide (K 2 S), 2.53 g (10 mmol) of iodine (I 2)、0.38 g (2 mmol) of copper(I) iodide (CuI) and 150 mL of dimethylformamide (DMF) were added to the reaction vessel, and while supplying air to the reaction vessel (for supplying oxygen), the resulting mixture was stirred at 140 °C for 24 hours. After the reaction was completed, the reaction mixture was cooled to room temperature and filtered to obtain a filtrate. Then, an extraction process was performed on the filtrate using water and 100 mL of ethyl acetate. The organic layer collected therefrom was dried using anhydrous magnesium sulfate and distilled under reduced pressure to obtain a crude product. The crude product was purified by column chromatography to complete the preparation of 1.8 g (yield: 60%) of intermediate 1-3. (4) Synthesis of Compound 1 3.03 g (10 mmol) of intermediate 1-3, 4.3 g (10 mmol) of 4,4,5,5-tetramethyl-2-(10-(naphthalene-1-yl)anthracene-9-yl)-1,3,2-dioxaborolan, 0.58 g (0.5 mmol) of Tetrakis(triphenylphosphine)palladium(0), Pd(PPh 3 ) 4 )、4.15 g (30 mmol) of potassium carbonate (K 2 CO 3 )、80 mL of distilled water, 160 mL of toluene, and 50 mL of ethanol were added to the reaction vessel, and the resulting mixture was refluxed and stirred for 12 hours. After the reaction was completed, the reaction mixture was cooled to room temperature and distilled under reduced pressure. Then, an extraction process was performed on it using 100 mL of dichloromethane. The organic layer collected therefrom was washed with distilled water, dried using anhydrous magnesium sulfate, and distilled under reduced pressure to obtain a crude product. The crude product was purified by column chromatography to complete the preparation of 3.15 g (yield: 60%) of Compound 1. Synthesis Example 2: Synthesis of Compound 33 Compound 33 (4.31 g, yield: 81%) was synthesized in the same manner as the synthesis of Compound 1, except that 2,4-diphenyl-6-(3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)-1,3,5-triazine was used instead of 4,4,5,5-tetramethyl-2-(10-(naphthalen-1-yl)anthracen-9-yl)-1,3,2-dioxaborolane. Synthesis Example 3: Synthesis of Compound 185 Compound 185 (3.67 g, yield: 77%) was synthesized in the same manner as the synthesis of Compound 1, except that 2-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)-1,10-phenanthroline was used instead of 4,4,5,5-tetramethyl-2-(10-(naphthalen-1-yl)anthracen-9-yl)-1,3,2-dioxaborolane. Synthesis Example 4: Synthesis of Compound 187 Compound 187 (3.05 g, yield: 45%) was synthesized in the same manner as the synthesis of Compound 1, except that diphenyl(4-(10-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)anthracene-9-yl)phenyl)phosphine oxide was used instead of 4,4,5,5-tetramethyl-2-(10-(naphthalen-1-yl)anthracen-9-yl)-1,3,2-dioxaborolane. Synthesis Example 5: Synthesis of Compound 51 Compound 51 (3.03 g, yield: 55%) was synthesized in the same manner as the synthesis of Compound 1, except that diphenyl(6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)naphthalene-2 -yl)phosphine oxide was used instead of 4,4,5,5-tetramethyl-2-(10-(naphthalen-1-yl)anthracen-9-yl)-1,3,2-dioxaborolane. Synthesis Example 6: Synthesis of Compound 189 Compound 189 (3.54 g, yield: 64%) was synthesized in the same manner as the synthesis of Compound 1, except that 2-(9,10-diphenylanthracene-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolan was used instead of 4,4,5,5-tetramethyl-2-(10-(naphthalen-1-yl)anthracen-9-yl)-1,3,2-dioxaborolane. Synthesis Example 7: Synthesis of Compound 127 Compound 127 (4.01 g, yield: 71%) was synthesized in the same manner as the synthesis of Compound 1, except that 9,9-diphenyl-7-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-9H-fluorene-2-carbonitrile was used instead of 4,4,5,5-tetramethyl-2-(10-(naphthalen-1-yl)anthracen-9-yl)-1,3,2-dioxaborolane. Synthesis Example 8: Synthesis of Compound 158 (1) Synthesis of Intermediate 158-1 Intermediate 158-1 (2.13 g, yield: 61%) was synthesized in the same manner as the synthesis of Intermediate 1-2, except that 2-amino-6-bromopyridine was used instead of 2-amino-5-bromopyridine. (2) Synthesis of Intermediate 158-2 Intermediate 158-2 (1.52 g, yield: 55%) was synthesized in the same manner as the synthesis of Intermediate 1-3, except that Intermediate 158-1 was used instead of Intermediate 1-2. (3) Synthesis of Compound 158 Compound 158 (3.72 g, yield: 70%) was synthesized in the same manner as the synthesis of Compound 33, except that Intermediate 158-2 was used instead of Intermediate 1-3. Synthesis Example 9: Synthesis of Compound 191 (1) Synthesis of Intermediate 191-1 Intermediate 191-1 (1.94 g, yield: 55%) was synthesized in the same manner as the synthesis of Intermediate 1-2, except that 2-amino-4-bromopyridine was used instead of 2-amino-5-bromopyridine. (2) Synthesis of Intermediate 191-2 Intermediate 191-2 (1.52 g, yield: 55%) was synthesized in the same manner as the synthesis of Intermediate 1-3, except that Intermediate 191-1 was used instead of Intermediate 1-2. (3) Synthesis of Compound 191 Compound 191 (3.72 g, yield: 70%) was synthesized in the same manner as the synthesis of Compound 1, except that Intermediate 191-2 and 4,4,5,5-tetramethyl-2-(10-(naphthalene-2-yl)anthracene-9-yl)-1,3,2-dioxaborolan were used instead of Intermediate 1-3 and 4,4,5,5-tetramethyl-2-(10-(naphthalen-1-yl)anthracene-9-yl)-1,3,2-dioxaborolan. Synthesis Example 10: Synthesis of Compound 174 (1) Synthesis of Intermediate 174-1 Intermediate 174-1 (1.48 g, yield: 42%) was synthesized in the same manner as the synthesis of Intermediate 1-2, except that 2-bromo-1-(2,5-dibromophenyl)ethane-1-one was used instead of Intermediate 1-1 and 2-aminopyridine was used instead of 2-amino-5-bromopyridine. (2) Synthesis of Intermediate 174-2 Intermediate 174-2 (1.82 g, yield: 60%) was synthesized in the same manner as the synthesis of Intermediate 1-3, except that Intermediate 174-1 was used instead of Intermediate 1-2. (3) Synthesis of Compound 174 Compound 174 (3.95 g, yield: 75%) was synthesized in the same manner as the synthesis of Compound 1, except that Intermediate 174-2 was used instead of Intermediate 1-3. Synthesis Example 11: Synthesis of Compound 208 (1) Synthesis of Intermediate 208-1 Intermediate 208-1 (2.12 g, yield: 60%) was synthesized in the same manner as the synthesis of Intermediate 1-2, except that 2-amino-5-bromopyrimidine was used instead of 2-amino-5-bromopyridine. (2) Synthesis of Intermediate 208-2 Intermediate 208-2 (1.86 g, yield: 61%) was synthesized in the same manner as the synthesis of Intermediate 1-3, except that Intermediate 208-1 was used instead of Intermediate 1-2. (3) Synthesis of Compound 208 Compound 208 (4.38 g, yield: 83%) was synthesized in the same manner as the synthesis of Compound 1, except that Intermediate 208-2 was used instead of Intermediate 1-3. Synthesis Example 12: Synthesis of Compound 209 (3) Synthesis of Compound 209 Compound 209 (4.53 g, yield: 85%) was synthesized in the same manner as the synthesis of Compound 33, except that Intermediate 208-2 was used instead of Intermediate 1-3. Compounds 1, 33, 185, 187, 51, 189, 127, 158, 191, 174, 208, and 209 synthesized according to Synthesis Examples 1 to 12 were identified by 1 1H nuclear magnetic resonance ( 1 1H NMR) and fast atom bombardment mass spectroscopy (MS / FAB), and the results are shown in Table 1. [Table 1] [Example] Example 1 The preparation of the anode is carried out by cutting an ITO / Ag / ITO glass substrate with ITO / Ag / ITO deposited thereon to a thickness of 70 Å / 1,000 Å / 70 Å respectively into a size of 50 mm x 50 mm x 0.5 mm, ultrasonically cleaning the ITO / Ag / ITO glass substrate with isopropyl alcohol and pure water for 5 minutes each, and then exposing the ITO / Ag / ITO glass substrate to UV irradiation and ozone for 30 minutes to clean the ITO / Ag / ITO glass substrate. Then the ITO / Ag / ITO glass substrate is loaded into a vacuum deposition apparatus. N-([1,1'-biphenyl]-4-yl)-9,9-dimethyl-N-(4-(9-phenyl-9H-carbazole-3-yl)phenyl)-9H-fluorene-2-amine (Compound HT3)) and F4-TCNQ are co-deposited on the ITO / Ag / ITO glass substrate at a weight ratio of 98:2 to form a hole injection layer with a thickness of 100 Å, Compound HT3 is vacuum deposited on the hole injection layer to form a first hole transport layer with a thickness of 1,200 Å, and N,N-di([1,1'-biphenyl]-4-yl)-4'-(9H-carbazole-9-yl)-[1,1'-biphenyl]-4-amine (Compound HT18)) is vacuum deposited on the first hole transport layer to form a second hole transport layer with a thickness of 100 Å. 9,10-di-naphthalene-2-yl-anthracene (AND (blue fluorescent matrix)) and N,N,N',N'-tetraphenyl-pyrene-1,6-diamine (FD1 (blue fluorescent dopant)) are co-deposited on the second hole transport layer at a weight ratio of 98:2 to form a light-emitting layer with a thickness of 300 Å. Next, Compound 1 according to one or more embodiments and LiQ are co-deposited on the light-emitting layer at a weight ratio of 5:5 to form an electron transport layer with a thickness of 300 Å. LiF is deposited on the electron transport layer to form an electron injection layer with a thickness of 10 Å, and Mg and Ag are co-deposited on the electron injection layer at a weight ratio of 90:10 to form a cathode with a thickness of 120 Å, thereby completing the preparation of the organic light-emitting device. Examples 2 to 12 and Comparative Examples 1 to 3 The organic light-emitting devices of Examples 2 to 12 and Comparative Examples 1 to 3 were prepared in the same manner as Example 1, except that each compound shown in Table 2 was used instead of Compound 1 in forming the electron transport layer. Evaluation Examples By using a Keithley SMU 236 and a luminance meter PR650, at a current density of 10 mA / cm 2 The driving voltage, luminance, efficiency, and service life of the organic light-emitting devices prepared according to Examples 1 to 12 and Comparative Examples 1 to 3 were evaluated, and the results are shown in Table 2. The service life represents the amount of time elapsed when the luminance is 97% of the initial luminance (100%) after driving the organic light-emitting device. [Table 2] Referring to Table 2, it is confirmed that the organic light-emitting devices of Examples 1 to 12 have excellent driving voltage, efficiency, and service life compared to the organic light-emitting devices of Comparative Examples 1 to 3. The organic light-emitting device containing the condensed ring compound represented by Chemical Formula 1 can have a low driving voltage, high efficiency, high luminance, high color purity, and a long service life. It should be understood that the exemplary embodiments of the present disclosure described herein should be considered only of a descriptive nature and not for purposes of limitation. The description of features or aspects within each exemplary embodiment should generally be considered applicable to other similar features or aspects in other exemplary embodiments. Although the exemplary embodiments of the present disclosure have been described with reference to the drawings, those of ordinary skill in the art will understand that various forms and details can be modified without departing from the spirit and scope defined by the following claims. 10, 20, 30, 40: Organic light-emitting device 110: First electrode 150: Organic layer 190: Second electrode 210: First covering layer 220: Second covering layer These or other aspects of the present disclosure will become apparent and be more readily understood from the following description of the embodiments, in conjunction with the accompanying drawings, in which: FIG. 1 is a cross-sectional schematic view of an organic light-emitting device according to an exemplary embodiment of the present disclosure; FIG. 2 is a cross-sectional schematic view of an organic light-emitting device according to an exemplary embodiment of the present disclosure; FIG. 3 is a cross-sectional schematic view of an organic light-emitting device according to an exemplary embodiment of the present disclosure; and FIG. 4 is a cross-sectional schematic view of an organic light-emitting device according to an exemplary embodiment of the present disclosure. Since the drawings in FIGS. 1 to 4 are intended for illustrative purposes, the elements in the drawings are not necessarily drawn to scale. For example, some elements may be enlarged or exaggerated for clarity. 10: Organic light-emitting device 110: First electrode 150: Organic layer 190: Second electrode

Claims

1. A condensed ring compound represented by Formula 1: <Formula 1>, in Formula 1, A11 is pyridinyl or pyrimidinyl, A12 is phenyl, X11 is O or S, X12 is C, X13 is C, X14 is C, X13 and X14 are linked by a single bond or a double bond, R11 and R12 are each independently selected from groups represented by *-(L11)a11-(Ar11)c11, hydrogen, and deuterium, and at least one of R11 and R12 is a group represented by *-(L11)a11-(Ar11)c11, b11 and b12 are each independently selected from 1, 2, 3, 4, 5, 6, 7, 8, 9, and 10, L11 is a single bond, a11 is selected from 1, 2, 3, and 4, and Ar11 is -P(=O)(Q1)(Q2). c11 is selected from 1, 2, 3, 4, 5 and 6, Q1 and Q2 are each independently selected from substituted or unsubstituted C6-C60 aryl and substituted or unsubstituted C1-C60 heteroaryl, and * indicates the linkage site with the adjacent atom.

2. The condensed ring compound as claimed in claim 1, wherein Q1 and Q2 are each independently selected from C6-C60 aryl and C1-C60 heteroaryl.

3. The condensed ring compound as claimed in claim 1, wherein a11 is selected from 1 and 2.

4. The condensed ring compound as claimed in claim 1, wherein the condensed polycyclic compound represented by Formula 1 is represented by Formula 1-1: <Formula 1-1> In Formula 1-1, Y11 to Y14 are each independently selected from N, C(Rx) and C(Ry), wherein Y15 to Y18 are each independently C(Rx) and C(Ry), and at least one of Y11 to Y18 is C(Ry), Rx is selected from hydrogen and deuterium, Ry is a group represented by *-(L11)a11-(Ar11)c11, X11, L11, a11, Ar11 and c11 are the same as described in Formula 1, and * indicates a connection site with an adjacent atom.

5. The condensed ring compound as described in claim 4, wherein: Y11 is C(Ry), Y13 is selected from N, C(Rx), and C(Ry), and Y12, Y14 to Y18 are each independently selected from C(Rx) and C(Ry); Y12 is C(Ry), Y11 and Y13 are each independently selected from N, C(Rx), and C(Ry), and Y14 to Y18 are each independently selected from C(Rx) and C(Ry); Y13 is C(Ry), Y11 is selected from N, C(Rx), and C(Ry), and Y12, Y14 to Y18 are each independently selected from C(Rx) and C(Ry); Y14 is C(Ry), Y11 to Y13 are each independently selected from N, C(Rx), and C(Ry), and Y15 to Y18 are each independently selected from C(Rx) and C(Ry); Y15 is C(Ry), and Y11 to Y14 and Y16 to Y18 are each independently selected from C(Rx) and C(Ry); Y16 is C(Ry), and Y11 to Y15, Y17 and Y18 are each independently selected from C(Rx) and C(Ry); Y17 is C(Ry), and Y11 to Y16 and Y18 are each independently selected from C(Rx) and C(Ry); or Y18 is C(Ry), and Y11 to Y17 are each independently selected from C(Rx) and C(Ry).

6. The condensed ring compound as claimed in claim 1, wherein the condensed ring compound represented by chemical formula 1 is represented by one of chemical formulas 1-11 to 1-18, 1-21 to 1-27, and 1-41 to 1-47: In chemical formulas 1-11 to 1-18, 1-21 to 1-27, and 1-41 to 1-47, R11a, R11b, R11c, R11d, R12a, R12b, R12c, and R12d are each independently selected from hydrogen and deuterium, and X11, L11, a11, Ar11, and c11 are the same as those described in chemical formula 1.

7. The condensed ring compound as claimed in claim 1, wherein the condensed ring compound represented by chemical formula 1 is compound 52: .

8. An organic light-emitting device comprising: a first electrode; a second electrode; and an organic layer disposed between the first electrode and the second electrode, the organic layer comprising a light-emitting layer and a condensed ring compound represented by Chemical Formula 1: <Chemical Formula 1>, in Chemical Formula 1, A11 is pyridinyl or pyrimidinyl, A12 is phenyl, X11 is O or S, X12 is C, X13 is C, X14 is C, X13 and X14 are linked by single or double bonds, R11 and R12 are each independently selected from groups represented by *-(L11)a11-(Ar11)c11, hydrogen, and deuterium, and at least one of R11 and R12 is a group represented by *-(L11)a11-(Ar11)c11, and b11 and b12 are each independently selected from 1, 2, 3, 4, 5, 6, 7, 8, 9, and 10. L11 series single bonds, a11 series selected from 1, 2, 3 and 4, Ar11 series -P(=O)(Q1)(Q2), c11 selected from 1, 2, 3, 4, 5 and 6, Q1 and Q2 are each independently selected from substituted or unsubstituted C6-C60 aryl and substituted or unsubstituted C1-C60 heteroaryl, and * indicates the linkage site with adjacent atoms.

9. The organic light-emitting device as described in claim 8, wherein: The first electrode is the anode; the second electrode is the cathode; the organic layer further includes an electron transport region between the second electrode and the light-emitting layer, and the electron transport region includes the condensed ring compound.

10. The organic light-emitting device as claimed in claim 9, wherein: The electron transport region includes an electron transport layer and an electron injection layer, and at least one of the electron transport layer and the electron injection layer includes 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 a combination thereof.

11. The organic light-emitting device as claimed in claim 9, wherein: The electron transport region includes an electron transport layer and an electron injection layer. The electron transport layer contains the condensation ring compound, and the electron injection layer contains alkali metals, alkaline earth metals, rare earth metals, alkali metal compounds, alkaline earth metal compounds, rare earth metal compounds, alkali metal complexes, alkaline earth metal complexes, rare earth metal complexes, or combinations thereof.

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