KR102658372B1 - Amine-based compound and organic light-emitting device comprising the same - Google Patents

Abstract

Amine-based compounds and organic light-emitting devices containing the same are disclosed.

Description

Amine-based compound and organic light-emitting device including the same {AMINE-BASED COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE COMPRISING THE SAME}

It relates to amine-based compounds and organic light-emitting devices containing them.

An organic light emitting device is a self-emitting device, and compared to conventional devices, it not only has a wide viewing angle and excellent contrast, but also has a fast response time, excellent brightness, driving voltage, and response speed characteristics, and can be multicolored. possible.

The organic light-emitting device has a first electrode disposed on an upper part of a substrate, and a hole transport region, a light-emitting layer, an electron transport region, and a second electrode are sequentially formed on the first electrode. It can have a structure. Holes injected from the first electrode move to the light-emitting layer via the hole transport region, and electrons injected from the second electrode move to the light-emitting layer via the electron transport region. Carriers such as holes and electrons recombine in the light emitting layer region to generate excitons. Light is generated as this exciton changes from the excited state to the ground state.

To provide an amine-based compound and an organic light-emitting device containing the same.

According to one aspect, an amine-based compound represented by the following formula 1A or 1B is provided:

<Formula 1A>

<Formula 1B>

In formulas 1A and 1B,

A ₁ to A ₅ are independently selected from a C ₅ -C ₃₀ carbocyclic group and a C ₁ -C ₃₀ heterocyclic group;

X ₁ is O, S, N-(L ₁ ) _a1 -(R ₁ ) _b1 or C(R ₉ )(R ₁₀ ),

X ₂ is O, S or C(R ₁₁ )(R ₁₂ ),

L ₁ to L ₃ are independently 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,

a1 to a3 are independently selected from integers of 1 to 5,

R ₁ to R ₁₂ are each independently selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amino group, amidino group, hydrazino group, hydrazono group, Substituted or unsubstituted C ₁ -C ₆₀ alkyl group, substituted or unsubstituted C ₂ -C ₆₀ alkenyl group, substituted or unsubstituted C ₂ -C ₆₀ alkynyl group, substituted or unsubstituted C ₁ -C ₆₀ alkoxy group , substituted or unsubstituted C ₃ -C ₁₀ cycloalkyl group, substituted or unsubstituted C ₁ -C ₁₀ heterocycloalkyl group, substituted or unsubstituted C ₃ -C ₁₀ cycloalkenyl group, substituted or unsubstituted C ₁ - C ₁₀ heterocycloalkenyl group, substituted or unsubstituted C ₆ -C ₆₀ aryl group, substituted or unsubstituted C ₆ -C ₆₀ aryloxy group, substituted or unsubstituted C ₆ -C ₆₀ arylthio group, substituted or Unsubstituted C ₁ -C ₆₀ heteroaryl group, substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group, -Si(Q ₁ )(Q ₂ )(Q ₃ ), -B(Q ₁ )(Q ₂ ) and -C(=O)(Q ₁ ),

R ₉ and R ₁₀ and/or R ₁₁ and R ₁₂ are optionally connected to each other to form a substituted or unsubstituted C ₅ -C ₃₀ carbocyclic group and a substituted or unsubstituted C ₁ -C ₃₀ heterocyclic group. You can form groups,

b1 to b3 and b5 to b8 are independently selected from integers of 1 to 10,

b4 is selected from an integer of 1 to 3,

The substituted C ₅ -C ₆₀ carbocyclic group, substituted C ₁ -C ₆₀ heterocyclic group, substituted C ₁ -C ₆₀ alkyl group, substituted C ₂ -C ₆₀ alkenyl group, substituted C ₂ -C ₆₀ alkynyl group, substituted C ₁ -C ₆₀ alkoxy group, substituted C ₃ -C ₁₀ cycloalkyl group, substituted C ₁ -C ₁₀ heterocycloalkyl group, substituted C ₃ -C ₁₀ cycloalkenyl group, substituted C ₁ -C ₁₀ heterocycloalkenyl group, substituted C ₆ -C ₆₀ aryl group, substituted C ₆ -C ₆₀ aryloxy group, substituted C ₆ -C ₆₀ arylthio group, substituted C ₁ -C ₆₀ heteroaryl group , a substituted C ₁ -C ₆₀ heteroaryloxy group, a substituted monovalent non-aromatic condensed polycyclic group, and at least one of the substituents of the substituted monovalent non-aromatic condensed heteropolycyclic group,

Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amino group, amidino group, hydrazino group, hydrazono group, C ₁ -C ₆₀ alkyl group, C ₂ -C ₆₀ alkenyl group, C ₂ -C ₆₀ alkynyl group and C ₁ -C ₆₀ alkoxy group;

Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amino group, amidino group, hydrazino group, hydrazono group, C ₃ -C ₁₀ cycloalkyl group, C ₁ -C ₁₀ heterocycloalkyl group, C ₃ -C ₁₀ cycloalkenyl group, C ₁ -C ₁₀ heterocycloalkenyl group, C ₆ -C ₆₀ aryl group, C ₆ -C ₆₀ aryloxy group, C ₆ -C ₆₀ arylthio group, C ₁ -C ₆₀ heteroaryl group, monovalent non-aromatic condensed polycyclic group, monovalent non-aromatic condensed heteropolycyclic group, -Si(Q ₁₁ )(Q ₁₂ )(Q ₁₃ ), -N(Q ₁₁ )( Q ₁₂ ), -B(Q ₁₁ )(Q ₁₂ ), -C(=O)(Q ₁₁ ), -S(=O) ₂ (Q ₁₁ ) and -P(=O)(Q ₁₁ )(Q ₁₂ ) a C ₁ -C ₆₀ alkyl group, a C ₂ -C ₆₀ alkenyl group, a C ₂ -C ₆₀ alkynyl group, and a C ₁ -C ₆₀ alkoxy group substituted with at least one selected from among;

C ₃ -C ₁₀ cycloalkyl group, C ₁ -C ₁₀ heterocycloalkyl group, C ₃ -C ₁₀ cycloalkenyl group, C ₁ -C ₁₀ heterocycloalkenyl group, C ₆ -C ₆₀ aryl group, C ₆ -C ₆₀ aryl Oxy group, C ₆ -C ₆₀ arylthio group, C ₁ -C ₆₀ heteroaryl group, monovalent non-aromatic condensed polycyclic group, monovalent non-aromatic condensed heteropolycyclic group, biphenyl group and terphenyl group;

Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amino group, amidino group, hydrazino group, hydrazono group, C ₁ -C ₆₀ alkyl group, C ₂ -C ₆₀ Alkenyl group, C ₂ -C ₆₀ alkynyl group, C ₁ -C ₆₀ alkoxy group, C ₃ -C ₁₀ cycloalkyl group, C ₁ -C ₁₀ heterocycloalkyl group, C ₃ -C ₁₀ cycloalkenyl group, C ₁ -C ₁₀ Heterocycloalkenyl group, C ₆ -C ₆₀ aryl group, C ₆ -C ₆₀ aryloxy group, C ₆ -C ₆₀ arylthio group, C ₁ -C ₆₀ heteroaryl group, monovalent non-aromatic condensed polycyclic group, 1 A non-aromatic heterocondensed polycyclic group, biphenyl group, terphenyl group, -Si(Q ₂₁ )(Q ₂₂ )(Q ₂₃ ), -N(Q ₂₁ )(Q ₂₂ ), -B(Q ₂₁ )(Q ₂₂ ), -C(=O)(Q ₂₁ ), -S(=O) ₂ (Q ₂₁ ) and -P(=O)(Q ₂₁ )(Q ₂₂ ), C ₃ -C substituted with at least one selected from ₁₀ cycloalkyl group, C ₁ -C ₁₀ heterocycloalkyl group, C ₃ -C ₁₀ cycloalkenyl group, C ₁ -C ₁₀ heterocycloalkenyl group, C ₆ -C ₆₀ aryl group, C ₆ -C ₆₀ aryloxy group, C ₆ -C ₆₀ arylthio group, C ₁ -C ₆₀ heteroaryl group, monovalent non-aromatic condensed polycyclic group, monovalent non-aromatic condensed heteropolycyclic group, biphenyl group and terphenyl group; and

-Si(Q ₃₁ )(Q ₃₂ )(Q ₃₃ ), -N(Q ₃₁ )(Q ₃₂ ), -B(Q ₃₁ )(Q ₃₂ ), -C(=O)(Q ₃₁ ), -S (=O) ₂ (Q ₃₁ ) and -P(=O)(Q ₃₁ )(Q ₃₂ );

is selected from,

Q ₁ to Q ₃ , Q ₁₁ to Q ₁₃ , Q ₂₁ to Q ₂₃ and Q ₃₁ to Q ₃₃ are each independently selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, No group, nitro group, amino group, amidino group, hydrazino group, hydrazono group, C ₁ -C ₆₀ alkyl group, C ₂ -C ₆₀ alkenyl group, C ₂ -C ₆₀ alkynyl group, C ₁ -C ₆₀ alkoxy group, C ₃ -C ₁₀ cycloalkyl group, C ₁ -C ₁₀ heterocycloalkyl group, C ₃ -C ₁₀ cycloalkenyl group, C ₁ -C ₁₀ heterocycloalkenyl group, C ₆ -C ₆₀ aryl group, C ₁ -C ₆₀ alkyl group It is selected from a substituted C ₆ -C ₆₀ aryl group, a C ₁ -C ₆₀ heteroaryl group, a monovalent non-aromatic condensed polycyclic group, a monovalent non-aromatic condensed heteropolycyclic group, a biphenyl group, and a terphenyl group.

According to another aspect, a first electrode; a second electrode opposing the first electrode; and an organic layer disposed between the first electrode and the second electrode and including a light-emitting layer, wherein the organic layer includes one or more of the amine-based compounds.

Organic light-emitting devices containing the amine-based compounds may have low driving voltage, high efficiency, long lifespan, and high maximum quantum efficiency.

1 to 4 are diagrams schematically showing the structure of an organic light-emitting device according to an embodiment.

Since the present invention can be modified in various ways and have various implementation examples, specific implementation examples will be illustrated in the drawings and described in detail in the detailed description. The effects and features of the present invention and methods for achieving them will become clear by referring to the embodiments described in detail below along with the drawings. However, the present invention is not limited to the implementation examples disclosed below and may be implemented in various forms.

Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings. When describing with reference to the drawings, identical or corresponding components will be assigned the same reference numerals and redundant description thereof will be omitted. .

In the following embodiments, singular terms include plural terms unless the context clearly dictates otherwise.

In the following implementation examples, terms such as include or have mean that the features or components described in the specification exist, and do not preclude the possibility of adding one or more other features or components.

In the following embodiments, when a part of a film, region, component, etc. is said to be on or on another part, it is not only the case that it is directly on top of the other part, but also the case where another film, region, component, etc. is interposed. Also includes cases where there are.

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

The amine-based compound is represented by the following formula 1A or 1B:

<Formula 1A>

<Formula 1B>

In Formulas 1A and 1B, A ₁ to A ₅ may be independently selected from a C ₅ -C ₃₀ carbocyclic group and a C ₁ -C ₃₀ heterocyclic group.

In one embodiment, in Formulas 1A and 1B, A ₁ to A ₅ are each independently selected from a benzene group, an indene group, a naphthalene group, anthracene group, a fluorene group, a phenanthrene group, a triphenylene group, and a pyrene group. group, chrysene group, naphthacene group, pyrrole group, imidazole group, pyrazole group, pyridine group, pyrimidine group, pyrazine group, pyridazine group, indole group, isoindole group, indazole group, quinoline group, iso Quinoline group, benzoquinoline group, naphthyridine group, quinoxaline group, quinazoline group, cinoline group, carbazole group, phenanthridine group, acridine group, phenanthroline group, phenazine group, benzimidazole group , furan group, benzofuran group, thiophene group, benzothiophene group, thiazole group, isothiazole group, benzothiazole group, isoxazole group, oxazole group, triazole group, oxadiazole group, triazole It may be selected from azine group, benzoxazole group, dibenzofuran group, dibenzothiophene group, benzocarbazole group and dibenzocarbazole group.

For example, in Formulas 1A and 1B, A ₁ to A ₅ are each independently a benzene group, an indene group, a naphthalene group, an anthracene group, a fluorene group, a phenanthrene group, a pyridine group, a pyrimidine group, and a pyrazine group. , pyridazine group, and carbazole group, but is not limited thereto.

As another example, in Formulas 1A and 1B, A ₁ to A ₅ may be independently selected from a benzene group and a naphthalene group, but are not limited thereto.

As another example, in Formulas 1A and 1B, A ₁ to A ₅ may independently be a benzene group, but are not limited thereto.

In Formulas 1A and 1B, X _{1 is} O, S, N-(L ₁ ) _a1 -(R ₁ ) _b1 or C(R ₉ )(R _{10 )} , and )(R ₁₂ ).

In one embodiment, in Formulas 1A and 1B, X ₁ is N-(L ₁ ) _a1 -(R ₁ ) _b1 , and X ₂ is O, S, or C(R ₁₁ )(R ₁₂ ); Alternatively, X ₁ may be O and X ₂ may be C(R ₁₁ )(R ₁₂ ), but are not limited thereto.

In Formulas 1A and 1B, L ₁ to L ₃ are independently selected from a single bond, a substituted or unsubstituted C ₅ -C ₆₀ carbocyclic group, or a substituted or unsubstituted C ₁ -C ₆₀ heterocyclic group. can be selected.

In one embodiment, in Formulas 1A and 1B, L ₁ to L ₃ are independently a single bond, a benzene group, a pentalene group, an indene group, a naphthalene group, an azulene group, a hepthalene group, or an indacene group. , acenaphthalene group, fluorene group, spiro-bifluorene group, benzofluorene group, phenalene group, phenanthrene group, anthracene group, fluoranthene group, triphenylene group, pyrene group, chrysene group. , naphthacene group, picene group, perylene group, pentaphenylene group, hexacene group, pyrrole group, imidazole group, pyrazole group, pyridine group, pyrazine group, pyrimidine group, pyridazine group, isoindole group, Indole group, indazole group, purine group, quinoline group, isoquinoline group, benzoquinoline group, phthalazine group, naphthyridine group, quinoxaline group, quinazoline group, cynoline group, carbazole group, phenanthridine group , acridine group, phenanthroline group, phenazine group, benzimidazole group, furan group, benzofuran group, thiophene group, benzothiophene group, thiazole group, isothiazole group, benzothiazole group, Isoxazole group, oxazole group, triazole group, tetrazole group, oxadiazole group, triazine group, benzoxazole group, dibenzofuran group, dibenzothiophene group, benzocarbazole group and dibenzocarba. Sol Group; and

Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amino group, amidino group, hydrazino group, hydrazono group, C ₁ -C ₂₀ alkyl group, C ₁ -C ₂₀ A benzene group, a pentalene group, an indene group, a naphthalene group, an azulene group, a hepthalene group, and an indacene group, substituted _{with at least one selected from an alkoxy group, a C 6 -C 20 aryl group ,} and a C 1 -C 20 heteroaryl group. , acenaphthalene group, fluorene group, spiro-bifluorene group, benzofluorene group, phenalene group, phenanthrene group, anthracene group, fluoranthrene group, triphenylene group, pyrene group, chrysene group. , naphthacene group, picene group, perylene group, pentaphenylene group, hexacene group, pyrrole group, imidazole group, pyrazole group, pyridine group, pyrazine group, pyrimidine group, pyridazine group, isoindole group, Indole group, indazole group, purine group, quinoline group, isoquinoline group, benzoquinoline group, phthalazine group, naphthyridine group, quinoxaline group, quinazoline group, cynoline group, carbazole group, phenanthridine group , acridine group, phenanthroline group, phenazine group, benzimidazole group, furan group, benzofuran group, thiophene group, benzothiophene group, thiazole group, isothiazole group, benzothiazole group, Isoxazole group, oxazole group, triazole group, tetrazole group, oxadiazole group, triazine group, benzoxazole group, dibenzofuran group, dibenzothiophene group, benzocarbazole group and dibenzocarba. Sol Group; It may be selected from among, but is not limited to.

In another embodiment, in Formulas 1A and 1B, L ₁ to L ₃ may be independently selected from a single bond and a group represented by the following Formulas 3-1 to 3-46:

In formulas 3-1 to 3-46,

Y ₁ is O, S, C(Z ₃ )(Z ₄ ), N(Z ₅ ) or Si(Z ₆ )(Z ₇ ),

Z ₁ to Z ₇ are independently of each other hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C ₁ -C ₂₀ alkyl group, C ₁ -C ₂₀ alkoxy group, cyclopentyl group, cyclohexyl group, cycloheptyl group, cyclopentenyl group, cyclohexenyl group, phenyl group, biphenyl group, naphthyl group, fluorenyl group, spiro-bi Fluorenyl group, phenalenyl group, phenanthrenyl group, anthracenyl group, fluoranthenyl group, triphenylenyl group, pyridinyl group, pyrazinyl group, pyrimidinyl group, quinolinyl group, isoquinolinyl group, benzoquinoli Nyl group, naphthyridinyl group, quinoxalinyl group, quinazolinyl group, carbazolyl group, phenanthridinyl group, acridinyl group, phenanthrolinyl group, phenazinyl group, triazinyl group, dibenzofuranyl group, dibenzothiophenyl group and - Si (Q ₃₁ ) (Q ₃₂ ) (Q ₃₃ ) is selected from,

d2 is selected from an integer of 0 to 2, and when d2 is 2 or more, 2 or more Z ₁ are the same or different from each other,

d3 is selected from an integer of 0 to 3, and when d3 is 2 or more, 2 or more Z ₁ and Z ₂ are the same or different from each other,

d4 is selected from an integer of 0 to 4, and when d4 is 2 or more, 2 or more Z ₁ and Z ₂ are the same or different from each other,

**d5 is selected from an integer of 0 to 5, and when d5 is 2 or more, 2 or more Z ₁ and Z ₂ are the same or different from each other,

d6 is selected from an integer of 0 to 6, and when d6 is 2 or more, 2 or more Z ₁ and Z ₂ are the same or different from each other,

d8 is selected from an integer of 0 to 8, and when d8 is 2 or more, 2 or more Z _1s are the same or different from each other,

*** and *' are binding sites with neighboring atoms.

For example, L ₁ to L ₃ are independently a single bond and may be selected from the group represented by Formulas 3-1 to 3-7, 3-31 to 3-34, 3-42, and 3-43. there is.

As another example, L ₁ to L ₃ may each independently be a single bond and selected from the group represented by Formulas 3-1, 3-2, and 3-34.

In one embodiment, in Formulas 3-1 to 3-46, Z ₁ to Z ₇ are independently selected from hydrogen, deuterium, -F, cyano group, methyl group, ethyl group, n-propyl group, and tert-butyl group. , phenyl group, and naphthyl group, but is not limited thereto.

In another embodiment, in Formulas 1A and 1B, L ₁ to L ₃ are independently a single bond or a benzene group; and

Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amino group, amidino group, hydrazino group, hydrazono group, C ₁ -C ₂₀ alkyl group, C ₁ -C ₂₀ A benzene group substituted with at least one selected from an alkoxy group, a C ₆ -C ₂₀ aryl group, and a C ₁ -C ₂₀ heteroaryl group; It may be selected from among, but is not limited to.

In Formulas 1A and 1B, a1 to a3 may be independently selected from an integer of 1 to 5. a1 represents the number of L ₁ , and when a1 is 2 or more, 2 or more L ₁ may be the same or different from each other. The description of a2 and a3 can be understood by referring to the description of a1 above.

In one embodiment, in Formulas 1A and 1B, a1 to a3 may be independently selected from an integer of 1 to 3.

For example, a1 to a3 may be 1, but are not limited thereto.

In Formulas 1A and 1B, R ₁ to R ₁₂ are independently selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amino group, amidino group, hydra Zino group, hydrazono group, substituted or unsubstituted C ₁ -C ₆₀ alkyl group, substituted or unsubstituted C ₂ -C ₆₀ alkenyl group, substituted or unsubstituted C ₂ -C ₆₀ alkynyl group, substituted or unsubstituted C ₁ -C ₆₀ alkoxy group, substituted or unsubstituted C ₃ -C ₁₀ cycloalkyl group, substituted or unsubstituted C ₁ -C ₁₀ heterocycloalkyl group, substituted or unsubstituted C ₃ -C ₁₀ cycloalkenyl group, substituted or unsubstituted C ₁ -C ₁₀ heterocycloalkenyl group, substituted or unsubstituted C ₆ -C ₆₀ aryl group, substituted or unsubstituted C ₆ -C ₆₀ aryloxy group, substituted or unsubstituted C ₆ -C ₆₀ Arylthio group, substituted or unsubstituted C ₁ -C ₆₀ heteroaryl group, substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group, -Si (Q ₁ )(Q ₂ )(Q ₃ ), -B(Q ₁ )(Q ₂ ) and -C(=O)(Q ₁ ),

R ₉ and R ₁₀ and/or R ₁₁ and R ₁₂ are optionally connected to each other to form a substituted or unsubstituted C ₅ -C ₃₀ carbocyclic group and a substituted or unsubstituted C ₁ -C ₃₀ heterocyclic group. Groups can be formed.

In one embodiment, in Formulas 1A and 1B, R ₁ and R ₂ are each independently selected from a C ₆ -C ₆₀ aryl group, a C ₁ -C ₆₀ heteroaryl group, a monovalent non-aromatic condensed polycyclic group, and 1 is a non-aromatic heterocondensed polycyclic group; and

Deuterium, -F, -Cl, -Br, -I, C ₁ -C ₆₀ alkyl group, C ₁ -C ₆₀ alkoxy group, C ₆ -C ₆₀ aryl group, C ₁ -C ₆₀ heteroaryl group, monovalent non- Aromatic condensed polycyclic group, monovalent non-aromatic heterocondensed polycyclic group, substituted with at least one of -N(Q ₃₁ )(Q ₃₂ ) and -Si(Q ₃₁ )(Q _{32 )(Q 33 )} , C ₆ -C ₆₀ Aryl group, C ₁ -C ₆₀ heteroaryl group, monovalent non-aromatic condensed polycyclic group and monovalent non-aromatic condensed heteropolycyclic group; can be selected from among.

In another embodiment, in Formulas 1A and 1B, R ₁ and R ₂ are each independently a phenyl group, a pentalenyl group, an indenyl group, a naphthyl group, or an azulenyl group. (azulenyl), heptalenyl, indacenyl, acenaphthyl, fluorenyl, spiro-fluorenyl, spiro-bifluorenyl, benzofluore Nyl group, phenalenyl, phenanthrenyl, anthracenyl, fluoranthenyl, triphenylenyl, pyrenyl, chrysenyl ( chrysenyl, naphthacenyl, picenyl, perylenyl, pentaphenyl, hexacenyl, pyrrolyl, imidazolyl, pyrazolyl, pyridinyl, pyrazinyl, pyrimidinyl, pyridazinyl, isoindolyl, indolyl, inda indazolyl, purinyl, quinolinyl, isoquinolinyl, benzoquinolinyl, phthalazinyl, naphthyridinyl, Quinoxalinyl, quinazolinyl, cinnolinyl, carbazolyl, phenanthridinyl, acridinyl, phenanthrolinyl, Phenazinyl, benzooxazolyl, benzimidazolyl, furanyl, benzofuranyl, thiophenyl, benzothiophenyl, thia thiazolyl, isothiazolyl, benzothiazolyl, isoxazolyl, oxazolyl, triazolyl, tetrazolyl, oxadiazolyl ), triazinyl, benzooxazolyl, dibenzofuranyl, dibenzothiophenyl, benzocarbazolyl and dibenzocarbazolyl groups; and

Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amino group, amidino group, hydrazino group, hydrazono group, C ₁ -C ₂₀ alkyl group, C ₁ -C ₂₀ a phenyl group, pentalenyl group, indenyl group, naphthyl group, azulenyl group, heptarenyl group, indacenyl group, substituted with at least one selected from alkoxy group, C ₆ -C ₂₀ aryl group and C ₁ -C ₂₀ heteroaryl group, Acenaphthyl group, fluorenyl group, spiro-fluorenyl group, spiro-bifluorenyl group, benzofluorenyl group, phenalenyl group, phenanthrenyl group, anthracenyl group, fluoranthenyl group, triphenylenyl group, Pyrenyl group, chrysenyl group, naphthacenyl group, picenyl group, perylenyl group, pentaphenyl group, hexacenyl group, pyrrolyl group, imidazolyl group, pyrazolyl group, pyridinyl group, pyrazinyl group, pyrimidinyl group, Pyridazinyl group, isoindoleyl group, indoleyl group, indazolyl group, purinyl group, quinolinyl group, isoquinolinyl group, benzoquinolinyl group, phthalazinyl group, naphthyridinyl group, quinoxalinyl group, quinazolinyl group, Cinolinyl group, carbazolyl group, phenanthridinyl group, acridinyl group, phenanthrolinyl group, phenazinyl group, benzooxazolyl group, benzimidazolyl group, furanyl group, benzofuranyl group, thiophenyl group, benzothiophenyl group, thia Zolylene group, isothiazolyl group, benzothiazolyl group, isoxazolyl group, oxazolyl group, triazolyl group, tetrazolyl group, oxadiazolyl group, triazinyl group, benzoxazolyl group, dibenzofuranyl group, dibenzo thiophenyl group, benzocarbazolyl group and dibenzocarbazolyl group; It may be selected from among, but is not limited to.

For example, in Formulas 1A and 1B, R ₁ and R ₂ may be independently selected from the group represented by the following Formulas 5-1 to 5-79, but are not limited thereto:

In formulas 5-1 to 5-79,

Y ₃₁ is O, S, C(Z ₃₃ )(Z ₃₄ ), N(Z ₃₅ ) or Si(Z ₃₆ )(Z ₃₇ ),

Z ₃₁ to Z ₃₇ are each independently hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C ₁ -C ₂₀ alkyl group, C ₁ -C ₂₀ alkoxy group, cyclopentyl group, cyclohexyl group, cycloheptyl group, cyclopentenyl group, cyclohexenyl group, phenyl group, biphenyl group, naphthyl group, fluorenyl group, spiro-bi Fluorenyl group, spiro-fluorene-benzofluorenyl group, benzofluorenyl group, dibenzofluorenyl group, phenalenyl group, phenanthrenyl group, anthracenyl group, fluoranthenyl group, triphenylenyl group, pyridi Nyl group, pyrazinyl group, pyrimidinyl group, quinolinyl group, isoquinolinyl group, benzoquinolinyl group, naphthyridinyl group, quinoxalinyl group, quinazolinyl group, carbazolyl group, phenanthridinyl group, acridinyl group, phenene Is selected from trollinyl group, phenazinyl group, triazinyl group, dibenzofuranyl group, dibenzothiophenyl group and -Si(Q ₃₁ )(Q ₃₂ )(Q ₃₃ ),

Z ₃₃ and Z ₃₄ may be optionally connected to each other to form a substituted or unsubstituted C ₅ -C ₃₀ carbocyclic group and a substituted or unsubstituted C ₁ -C ₃₀ heterocyclic group,

e2 is selected from an integer of 0 to 2, and when e2 is 2 or more, 2 or more Z ₃₁ and Z ₃₂ are the same or different from each other,

e3 is selected from an integer of 0 to 3, and when e3 is 2 or more, 2 or more Z ₃₁ and Z ₃₂ are the same or different from each other,

e4 is selected from an integer of 0 to 4, and when e4 is 2 or more, 2 or more Z ₃₁ and Z ₃₂ are the same or different from each other,

e5 is selected from an integer of 0 to 5, and when e5 is 2 or more, 2 or more Z ₃₁ and Z ₃₂ are the same or different from each other,

e6 is selected from an integer of 0 to 6, and when e6 is 2 or more, 2 or more Z ₃₁ and Z ₃₂ are the same or different from each other,

e7 is selected from an integer of 0 to 7, and when e7 is 2 or more, 2 or more Z ₃₁ are the same or different from each other,

e9 is selected from an integer of 0 to 9, and when e9 is 2 or more, 2 or more Z ₃₁ are the same or different from each other,

* is a binding site with a neighboring atom.

For example, in Formulas 1A and 1B, R ₁ and R ₂ may be independently selected from the group represented by Formulas 5-1 to 5-20, but are not limited thereto.

As another example, in Formulas 1A and 1B, R ₁ and R ₂ may be independently selected from the group represented by Formulas 5-1 to 5-3, 5-13 to 5-16, and 5-20. However, it is not limited to this.

In one embodiment, in Formulas 5-1 to 5-79, Z ₃₁ to Z ₃₇ are independently selected from hydrogen, deuterium, -F, cyano group, methyl group, ethyl group, n-propyl group, and tert-butyl group. , phenyl group, and naphthyl group, but is not limited thereto.

In another embodiment, in Formulas 1A and 1B, R ₁ and R ₂ may be independently selected from the following Formulas 6-1 to 6-42, but are not limited thereto:

In formulas 6-1 to 6-42,

“Ph” represents a phenyl group,

* is a binding site with a neighboring atom.

In Formulas 1A and 1B, R ₃ to R ₁₂ are each independently selected from hydrogen, deuterium, -F, -Cl, -Br, -I, C ₁ -C ₆₀ alkyl group, C ₁ -C ₆₀ alkoxy group, C ₆ -C ₆₀ aryl group, C ₆ -C ₆₀ aryloxy group, C ₆ -C ₆₀ arylthio group, C ₁ -C ₆₀ heteroaryl group, monovalent non-aromatic condensed polycyclic group, monovalent non-aromatic condensed polycyclic group, -Si(Q ₁ )(Q ₂ )(Q ₃ ) and -N(Q ₁ )(Q ₂ );

C ₁ -C ₆₀ alkyl group and C ₁ -C ₆₀ alkoxy group substituted with at least one of deuterium, -F, -Cl, -Br, -I, cyano group and nitro group; and

Deuterium, -F, -Cl, -Br, -I, cyano group, nitro group, methyl group, methoxy group, phenyl group, naphthyl group and biphenyl group, C ₆ -C ₆₀ aryl group, C ₁ -C ₆₀ heteroaryl group, monovalent non-aromatic condensed polycyclic group and monovalent non-aromatic heterocondensed polycyclic group; It may be selected from among, but is not limited to.

In another embodiment, R ₃ to R ₁₂ are each independently selected from hydrogen, deuterium, -F, -Cl, -Br, -I, methyl group, ethyl group, propyl group, isopropyl group, n-butyl group, isobutyl group. group, sec-butyl group, ter-butyl group, pentyl group, iso-amyl group, hexyl group, phenyl group, and biphenyl group, but is not limited thereto.

In Formulas 1A and 1B, b1 to b3 and b5 to b8 are independently selected from integers from 1 to 10, and b4 may be selected from integers from 1 to 3.

b1 represents the number of R ₁ , and when b1 is 2 or more, 2 or more R ₁ may be the same or different from each other. The description of b2 to b8 can be understood by referring to the description of b1 above.

The substituted C ₅ -C ₆₀ carbocyclic group, substituted C ₁ -C ₆₀ heterocyclic group, substituted C ₁ -C ₆₀ alkyl group, substituted C ₂ -C ₆₀ alkenyl group, substituted C ₂ -C ₆₀ alkynyl group, substituted C ₁ -C ₆₀ alkoxy group, substituted C ₃ -C ₁₀ cycloalkyl group, substituted C ₁ -C ₁₀ heterocycloalkyl group, substituted C ₃ -C ₁₀ cycloalkenyl group, substituted C ₁ -C ₁₀ heterocycloalkenyl group, substituted C ₆ -C ₆₀ aryl group, substituted C ₆ -C ₆₀ aryloxy group, substituted C ₆ -C ₆₀ arylthio group, substituted C ₁ -C ₆₀ heteroaryl group , a substituted C ₁ -C ₆₀ heteroaryloxy group, a substituted monovalent non-aromatic condensed polycyclic group, and at least one of the substituents of the substituted monovalent non-aromatic condensed heteropolycyclic group,

Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amino group, amidino group, hydrazino group, hydrazono group, C ₁ -C ₆₀ alkyl group, C ₂ -C ₆₀ alkenyl group, C ₂ -C ₆₀ alkynyl group and C ₁ -C ₆₀ alkoxy group;

Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amino group, amidino group, hydrazino group, hydrazono group, C ₃ -C ₁₀ cycloalkyl group, C ₁ -C ₁₀ heterocycloalkyl group, C ₃ -C ₁₀ cycloalkenyl group, C ₁ -C ₁₀ heterocycloalkenyl group, C ₆ -C ₆₀ aryl group, C ₆ -C ₆₀ aryloxy group, C ₆ -C ₆₀ arylthio group, C ₁ -C ₆₀ heteroaryl group, monovalent non-aromatic condensed polycyclic group, monovalent non-aromatic condensed heteropolycyclic group, -Si(Q ₁₁ )(Q ₁₂ )(Q ₁₃ ), -N(Q ₁₁ )( Q ₁₂ ), -B(Q ₁₁ )(Q ₁₂ ), -C(=O)(Q ₁₁ ), -S(=O) ₂ (Q ₁₁ ) and -P(=O)(Q ₁₁ )(Q ₁₂ ) a C ₁ -C ₆₀ alkyl group, a C ₂ -C ₆₀ alkenyl group, a C ₂ -C ₆₀ alkynyl group, and a C ₁ -C ₆₀ alkoxy group substituted with at least one selected from among;

C ₃ -C ₁₀ cycloalkyl group, C ₁ -C ₁₀ heterocycloalkyl group, C ₃ -C ₁₀ cycloalkenyl group, C ₁ -C ₁₀ heterocycloalkenyl group, C ₆ -C ₆₀ aryl group, C ₆ -C ₆₀ aryl Oxy group, C ₆ -C ₆₀ arylthio group, C ₁ -C ₆₀ heteroaryl group, monovalent non-aromatic condensed polycyclic group, monovalent non-aromatic condensed heteropolycyclic group, biphenyl group and terphenyl group;

Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amino group, amidino group, hydrazino group, hydrazono group, C ₁ -C ₆₀ alkyl group, C ₂ -C ₆₀ Alkenyl group, C ₂ -C ₆₀ alkynyl group, C ₁ -C ₆₀ alkoxy group, C ₃ -C ₁₀ cycloalkyl group, C ₁ -C ₁₀ heterocycloalkyl group, C ₃ -C ₁₀ cycloalkenyl group, C ₁ -C ₁₀ Heterocycloalkenyl group, C ₆ -C ₆₀ aryl group, C ₆ -C ₆₀ aryloxy group, C ₆ -C ₆₀ arylthio group, C ₁ -C ₆₀ heteroaryl group, monovalent non-aromatic condensed polycyclic group, 1 A non-aromatic heterocondensed polycyclic group, biphenyl group, terphenyl group, -Si(Q ₂₁ )(Q ₂₂ )(Q ₂₃ ), -N(Q ₂₁ )(Q ₂₂ ), -B(Q ₂₁ )(Q ₂₂ ), -C(=O)(Q ₂₁ ), -S(=O) ₂ (Q ₂₁ ) and -P(=O)(Q ₂₁ )(Q ₂₂ ), C ₃ -C substituted with at least one selected from ₁₀ cycloalkyl group, C ₁ -C ₁₀ heterocycloalkyl group, C ₃ -C ₁₀ cycloalkenyl group, C ₁ -C ₁₀ heterocycloalkenyl group, C ₆ -C ₆₀ aryl group, C ₆ -C ₆₀ aryloxy group, C ₆ -C ₆₀ arylthio group, C ₁ -C ₆₀ heteroaryl group, monovalent non-aromatic condensed polycyclic group, monovalent non-aromatic condensed heteropolycyclic group, biphenyl group and terphenyl group; and

-Si(Q ₃₁ )(Q ₃₂ )(Q ₃₃ ), -N(Q ₃₁ )(Q ₃₂ ), -B(Q ₃₁ )(Q ₃₂ ), -C(=O)(Q ₃₁ ), -S (=O) ₂ (Q ₃₁ ) and -P(=O)(Q ₃₁ )(Q ₃₂ );

is selected from,

Q ₁ to Q ₃ , Q ₁₁ to Q ₁₃ , Q ₂₁ to Q ₂₃ and Q ₃₁ to Q ₃₃ are each independently selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, No group, nitro group, amino group, amidino group, hydrazino group, hydrazono group, C ₁ -C ₆₀ alkyl group, C ₂ -C ₆₀ alkenyl group, C ₂ -C ₆₀ alkynyl group, C ₁ -C ₆₀ alkoxy group, C ₃ -C ₁₀ cycloalkyl group, C ₁ -C ₁₀ heterocycloalkyl group, C ₃ -C ₁₀ cycloalkenyl group, C ₁ -C ₁₀ heterocycloalkenyl group, C ₆ -C ₆₀ aryl group, C ₁ -C ₆₀ alkyl group It may be selected from a substituted C ₆ -C ₆₀ aryl group, a C ₁ -C ₆₀ heteroaryl group, a monovalent non-aromatic condensed polycyclic group, a monovalent non-aromatic condensed heteropolycyclic group, a biphenyl group, and a terphenyl group.

**In one embodiment, the amine-based compound represented by Formula 1A or 1B may be represented by the following Formula 1C or 1D, but is not limited thereto:

<Formula 1C>

<Formula 1D>

In formulas 1C and 1D,

_{The definitions for X 1 ,}

b4, b6 and b8 are independently selected from integers of 1 to 3,

b3, b5 and b7 are independently selected from integers of 1 to 4.

In another embodiment, the amine-based compound represented by Formula 1A or 1B may be represented by any one selected from the following Formulas 1A-1 to 1A-4 and 1B-1 to 1B-16, but is not limited thereto:

<Formula 1A-1>

<Formula 1A-2>

<Formula 1A-3>

<Formula 1A-4>

<Formula 1B-1>

<Formula 1B-2>

<Formula 1B-3>

<Formula 1B-4>

<Formula 1B-5>

<Formula 1B-6>

<Formula 1B-7>

<Formula 1B-8>

<Formula 1B-9>

<Formula 1B-10>

<Formula 1B-11>

<Formula 1B-12>

*

<Formula 1B-13>

<Formula 1B-14>

<Formula 1B-15>

<Formula 1B-16>

In the formulas 1A-1 to 1A-4 and 1B-1 to 1B-16,

_{The definitions for X 1 ,}

b4, b6 and b8 are independently selected from integers of 1 to 3,

b3, b5 and b7 are independently selected from integers of 1 to 4.

In one embodiment, in Formulas 1A-1 to 1A-4 and 1B-1 to 1B-16, X ₁ is N-(L ₁ ) _a1 -(R ₁ ) _b1 , and X ₂ is O, S or C(R ₁₁ )(R ₁₂ );

X ₁ is O and X ₂ is C(R ₁₁ )(R ₁₂ ); or

X ₁ may be C(R ₉ )(R ₁₀ ), and X ₂ may be C(R ₁₁ )(R ₁₂ ), but are not limited thereto.

In another embodiment, in Formulas 1A-1 to 1A-4 and 1B-1 to 1B-16, L ₁ to L ₃ are each independently a single bond or a benzene group; and

Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amino group, amidino group, hydrazino group, hydrazono group, C ₁ -C ₂₀ alkyl group, C ₁ -C ₂₀ A benzene group substituted with at least one selected from an alkoxy group, a C ₆ -C ₂₀ aryl group, and a C ₁ -C ₂₀ heteroaryl group; It may be selected from among, but is not limited to.

In another embodiment, in Formulas 1A-1 to 1A-4 and 1B-1 to 1B-16, R ₁ and R ₂ may be independently selected from Formulas 6-1 to 6-42. , but is not limited to this.

In one embodiment, in Formulas 1A and 1B, R ₉ and R ₁₀ and/or R ₁₁ and R ₁₂ may be combined to represent any one of the following Formulas 7-1 to 7-3:

In formulas 7-1 to 7-3,

Z ₅₁ and Z ₅₂ are independently of each other hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C ₁ -C ₂₀ alkyl group, C ₁ -C ₂₀ alkoxy group, cyclopentyl group, cyclohexyl group, cycloheptyl group, cyclopentenyl group, cyclohexenyl group, phenyl group, biphenyl group, naphthyl group, fluorenyl group, spiro-bi Fluorenyl group, spiro-fluorene-benzofluorenyl group, benzofluorenyl group, dibenzofluorenyl group, phenalenyl group, phenanthrenyl group, anthracenyl group, fluoranthenyl group, triphenylenyl group, pyridi Nyl group, pyrazinyl group, pyrimidinyl group, quinolinyl group, isoquinolinyl group, benzoquinolinyl group, naphthyridinyl group, quinoxalinyl group, quinazolinyl group, carbazolyl group, phenanthridinyl group, acridinyl group, phenene Is selected from trollinyl group, phenazinyl group, triazinyl group, dibenzofuranyl group, dibenzothiophenyl group and -Si(Q ₃₁ )(Q ₃₂ )(Q ₃₃ ),

n1 is selected from integers from 1 to 8,

n2 is selected from an integer from 1 to 10,

n3 and n4 are independently selected from integers of 1 to 4,

* is a carbon atom in which R ₉ and R ₁₀ or R ₁₁ and R ₁₂ are combined.

In one embodiment, the amine-based compound represented by Formula 1A or 1B may be selected from the following compounds 1 to 284, but is not limited thereto:

The amine-based compound represented by Formula 1A or 1B has a molecular structure with high steric hindrance by satisfying a structure in which a substituent represented by Formula 1A' is connected to nitrogen at a specific position. As a result, the amine-based compound can maintain optimal intermolecular density. In addition, excellent hole mobility can be achieved through increased interaction by lone pairs of oxygen atoms that are less sterically obscured.

<Formula 1A'>

In addition, the amine-based compound contains one amine group in the molecule and thus has an appropriate energy level compared to compounds containing two or more amine groups. Accordingly, hole injection and hole injection barriers can be reduced to improve hole mobility.

Therefore, an electronic device containing the amine-based compound, for example, an organic light-emitting device, may have a low driving voltage, high efficiency, and long lifespan.

A method for synthesizing the amine-based compound represented by Formula 1A or 1B can be recognized by those skilled in the art by referring to the Examples described later.

At least one of the amine compounds represented by Formula 1A or 1B may be used between a pair of electrodes of an organic light emitting device. For example, the amine-based compound may be included in at least one of a hole transport region, an electron transport region, and a light emitting layer. Alternatively, the amine-based compound represented by Formula 1A or 1B may be used as a capping layer material located on the outside of a pair of electrodes of an organic light-emitting device.

Therefore, the first electrode; a second electrode opposite the first electrode; and an organic layer disposed between the first electrode and the second electrode and including a light-emitting layer, wherein the organic layer includes one or more amine-based compounds represented by Formula 1A or 1B.

In this specification, “(organic layer) includes one or more amine-based compounds” means “(organic layer) is one type of amine-based compound belonging to the category of Formula 1A or 1B, or an amine-based compound belonging to the category of Formula 1A or 1B. It can be interpreted as “may contain two or more different amine-based compounds.”

*For example, the organic layer may include only Compound 1 as the amine-based compound. At this time, Compound 1 may be present in the light-emitting layer of the organic light-emitting device. Alternatively, the organic layer may include Compound 1 and Compound 2 as the amine-based compound. At this time, 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 light-emitting layer) or in different layers (for example, Compound 1 may be present in the light-emitting layer). and Compound 2 may be present in the electron transport layer.

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

In one embodiment, the hole transport region may include the amine-based compound.

In another embodiment, the hole transport region includes a hole injection layer and a hole transport layer, and at least one of the hole injection layer and the hole transport layer may include the amine-based compound.

In another embodiment, the hole transport region may include a hole transport layer, and the hole transport layer may include the amine-based compound.

In one embodiment, the hole transport region includes a p-dopant, and the LUMO energy level of the p-dopant may be -3.5 eV or less.

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

For example, the hole transport region may include a hole injection layer, and the hole injection layer may include the p-dopant.

In one embodiment, the light-emitting layer may include at least one of a styryl-based compound, an anthracene-based compound, a pyrene-based compound, and a spiro-bifluorene-based compound.

In this specification, “organic layer” is a term referring to all single and/or multiple layers interposed between the first electrode and the second electrode in the organic light-emitting device. Materials included in the “organic layer” layer are not limited to organic materials.

[Description of Figure 1]

Figure 1 schematically shows a cross-sectional view of an organic light-emitting device 10 according to an embodiment of the present invention. The organic light emitting device 10 includes a first electrode 110, an organic layer 150, and a second electrode 190.

Hereinafter, the structure and manufacturing method of the organic light-emitting device 10 according to an embodiment of the present invention will be described with reference to FIG. 1.

[First electrode (110)]

A substrate may be additionally disposed below the first electrode 110 or above the second electrode 190 in FIG. 1 . As the substrate, a glass substrate or a plastic substrate excellent in mechanical strength, thermal stability, transparency, surface smoothness, ease of handling, and waterproofness can be used.

The first electrode 110 may be formed, for example, by providing a first electrode material on the upper part of the substrate using a deposition method or sputtering method. When the first electrode 110 is an anode, the material for the first electrode may be selected from materials with a high work function to facilitate hole injection.

The first electrode 110 may be a reflective electrode, a transflective electrode, or a transmissive electrode. In order to form the first electrode 110, which is a transmissive electrode, the first electrode material is indium tin oxide (ITO), indium zinc oxide (IZO), tin oxide (SnO ₂ ), zinc oxide (ZnO), and any of them. It may be selected from a combination of, but is not limited to this. Alternatively, to form the first electrode 110, which is a transflective electrode or a reflective electrode, the first electrode material is magnesium (Mg), silver (Ag), aluminum (Al), or aluminum-lithium (Al-Li). ), calcium (Ca), magnesium-indium (Mg-In), magnesium-silver (Mg-Ag), and any combination thereof, but is not limited thereto.

The first electrode 110 may have a single-layer structure or a multi-layer structure having a plurality of layers. For example, the first electrode 110 may have a three-layer structure of ITO/Ag/ITO, but is not limited to this.

[Organic layer (150)]

An organic layer 150 is disposed on the first electrode 110. The organic layer 150 includes a light emitting layer.

The organic layer 150 includes a hole transport region between the first electrode 110 and the light-emitting layer and an electron transport region between the light-emitting layer and the second electrode 190. region) may be further included.

[Hole transport area in organic layer 150]

The hole transport region has i) a single-layer structure consisting of a single layer made of a single material, ii) a single-layer structure made of a single layer made of a plurality of different materials, or iii) a multilayer structure having a plurality of layers made of a plurality of different materials. It can have a structure.

The hole transport region may include at least one layer selected from a hole injection layer (HIL), a hole transport layer (HTL), an emission auxiliary layer, and an electron blocking layer (EBL).

For example, the hole transport region has a single-layer structure consisting of a single layer made of a plurality of different materials, or a hole injection layer/hole transport layer or a hole injection layer/hole transport layer sequentially stacked from the first electrode 110. /It may have a multi-layer structure of a light-emitting auxiliary layer, a hole injection layer/light-emitting auxiliary layer, a hole transport layer/light-emitting auxiliary layer, or a hole injection layer/hole transport layer/electron blocking layer, but is not limited thereto.

The hole transport region may include an amine-based compound represented by Formula 1A or 1B.

In addition, the hole transport region includes m-MTDATA, TDATA, 2-TNATA, NPB (NPD), β-NPB, TPD, Spiro-TPD, Spiro-NPB, methylated- NPB, TAPC, HMTPD, TCTA(4,4',4"-tris(N-carbazolyl)triphenylamine (4,4',4"-tris(N-carbazolyl)triphenylamine)), Pani/DBSA (Polyaniline) /Dodecylbenzenesulfonic acid (polyaniline/dodecylbenzenesulfonic acid)), PEDOT/PSS(Poly(3,4-ethylenedioxythiophene)/Poly(4-styrenesulfonate) (poly(3,4-ethylenedioxythiophene)/poly(4-styrene) Sulfonate))), Pani/CSA (Polyaniline/Camphor sulfonic acid), PANI/PSS (Polyaniline/Poly(4-styrenesulfonate)), the following formula It may include at least one selected from the compound represented by 201 and the compound represented by the following formula 202:

<Formula 201>

<Formula 202>

In formulas 201 and 202,

L ₂₀₁ to L ₂₀₄ are each independently selected from a substituted or unsubstituted C ₃ -C ₁₀ cycloalkylene group, a substituted or unsubstituted C ₁ -C ₁₀ heterocycloalkylene group, or a substituted or unsubstituted C ₃ -C ₁₀ cycloalkylene group. Alkenylene group, substituted or unsubstituted C ₁ -C ₁₀ heterocycloalkenylene group, substituted or unsubstituted C ₆ -C ₆₀ arylene group, substituted or unsubstituted C ₁ -C ₆₀ heteroarylene group, substituted or unsubstituted selected from a substituted divalent non-aromatic condensed polycyclic group and a substituted or unsubstituted divalent non-aromatic heterocondensed polycyclic group,

L ₂₀₅ is, *-O-*', *-S-*', *-N(Q ₂₀₁ )-*', substituted or unsubstituted C ₁ -C ₂₀ alkylene group, substituted or unsubstituted C ₂ - C ₂₀ alkenylene group, substituted or unsubstituted C ₃ -C ₁₀ cycloalkylene group, substituted or unsubstituted C ₁ -C ₁₀ heterocycloalkylene group, substituted or unsubstituted C ₃ -C ₁₀ cycloalkenylene group, Substituted or unsubstituted C ₁ -C ₁₀ heterocycloalkenylene group, substituted or unsubstituted C ₆ -C ₆₀ arylene group, substituted or unsubstituted C ₁ -C ₆₀ heteroarylene group, substituted or unsubstituted divalent selected from non-aromatic condensed polycyclic groups and substituted or unsubstituted divalent non-aromatic condensed polycyclic groups,

xa1 to xa4 are independently selected from integers from 0 to 3,

xa5 is selected from an integer from 1 to 10,

R ₂₀₁ to R ₂₀₄ and Q ₂₀₁ are each independently selected from a substituted or unsubstituted C ₃ -C ₁₀ cycloalkyl group, a substituted or unsubstituted C ₁ -C ₁₀ heterocycloalkyl group, or a substituted or unsubstituted C ₃ -C ₁₀ Cycloalkenyl group, substituted or unsubstituted C ₁ -C ₁₀ heterocycloalkenyl group, substituted or unsubstituted C ₆ -C ₆₀ aryl group, substituted or unsubstituted C ₆ -C ₆₀ aryloxy group, substituted or unsubstituted C ₆ -C ₆₀ arylthio group, substituted or unsubstituted C ₁ -C ₆₀ heteroaryl group, substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, and substituted or unsubstituted monovalent non-aromatic heterocondensed group. It may be selected from polycyclic groups.

For example, in Formula 202, R ₂₀₁ and R ₂₀₂ may be optionally connected to each other through a single bond, a dimethyl-methylene group, or a diphenyl-methylene group, and R ₂₀₃ and R ₂₀₄ may be optionally connected to each other, They may be linked to each other through a single bond, a dimethyl-methylene group, or a diphenyl-methylene group.

According to one embodiment, in Formulas 201 and 202,

L ₂₀₁ to L ₂₀₅ are independently of each other,

Phenylene group, pentalenylene group, indenylene group, naphthylene group, azulenylene group, hepthalenylene group, indacenylene group, acenaphthylene group, fluorenylene group, spiro-bifluorenylene group, benzofluore Nylene group, dibenzofluorenylene group, phenalenylene group, phenanthrenylene group, anthracenylene group, fluoranthenylene group, triphenylenylene group, pyrenylene group, chrysenylene group, naphthacenylene group, picenylene group, pe Relenylene group, pentaphenylene group, hexacenylene group, pentacenylene group, rubcenylene group, coronenylene group, ovalenylene group, thiophenylene group, furanylene group, carbazonylene group, indolylene group, isoindolylene group , benzofuranylene group, benzothiophenylene group, dibenzofuranylene group, dibenzothiophenylene group, benzocarbazolylene group, dibenzocarbazolylene group, dibenzosylrollylene group and pyridinylene group; and

Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C ₁ -C ₂₀ alkyl group, C ₁ -C ₂₀ alkoxy group , cyclopentyl group, cyclohexyl group, cycloheptyl group, cyclopentenyl group, cyclohexenyl group, phenyl group, biphenyl group, terphenyl group, phenyl group substituted with C ₁ -C ₁₀ alkyl group, phenyl group substituted with -F, pentale Nyl group, indenyl group, naphthyl group, azulenyl group, hepthalenyl 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, naphthacenyl group, picenyl group, perylenyl group, pentaphenyl group, hexacenyl group, pentacenyl group, Rubisenyl group, coronenyl group, ovalenyl group, thiophenyl group, furanyl group, carbazolyl group, indolyl group, isoindolyl group, benzofuranyl group, benzothiophenyl group, dibenzofuranyl group, dibenzothiophenyl group, benzocarbazole Phenyl substituted with at least one selected from the group consisting of dibenzocarbazolyl group, dibenzosilolyl group, pyridinyl group, -Si(Q ₃₁ )(Q ₃₂ )(Q ₃₃ ) and -N(Q ₃₁ )(Q ₃₂ ) Len group, pentalenylene group, indenylene group, naphthylene group, azulenylene group, hepthalenylene group, indacenylene group, acenaphthylene group, fluorenylene group, spiro-bifluorenylene group, benzofluorenyl Len group, dibenzofluorenylene group, phenalenylene group, phenanthrenylene group, anthracenylene group, fluoranthenylene group, triphenylenylene group, pyrenylene group, chrysenylene group, naphthacenylene group, picenylene group, perile Nylene group, pentaphenylene group, hexacenylene group, pentacenylene group, rubisenylene group, coronenylene group, ovalenylene group, thiophenylene group, furanylene group, carbazonylene group, indolelylene group, isoindolylene group, Benzofuranylene group, benzothiophenylene group, dibenzofuranylene group, dibenzothiophenylene group, benzocarbazolylene group, dibenzocarbazolylene group, dibenzosylrollylene group and pyridinylene group;

is selected from,

Q ₃₁ to Q ₃₃ may be independently selected from a C ₁ -C ₁₀ alkyl group, a C ₁ -C ₁₀ alkoxy group, a phenyl group, a biphenyl group, a terphenyl group, and a naphthyl group.

According to another embodiment, xa1 to xa4 may be independently 0, 1, or 2.

According to another embodiment, xa5 may be 1, 2, 3, or 4.

According to another embodiment, R ₂₀₁ to R ₂₀₄ and Q ₂₀₁ are each independently selected from a phenyl group, a biphenyl group, a terphenyl group, a pentalenyl group, an indenyl group, a naphthyl group, an azulenyl group, a hepthalenyl group, an indacenyl group, Acenaphthyl group, fluorenyl group, spiro-bifluorenyl group, benzofluorenyl group, dibenzofluorenyl group, phenalenyl group, phenanthrenyl group, anthracenyl group, fluoranthenyl group, triphenylenyl group, pi Renyl group, chrysenyl group, naphthacenyl group, picenyl group, perylenyl group, pentaphenyl group, hexacenyl group, pentacenyl group, rubisenyl group, coronenyl group, ovalenyl group, thiophenyl group, furanyl group, carbazole diyl group, indolyl group, isoindolyl group, benzofuranyl group, benzothiophenyl group, dibenzofuranyl group, dibenzothiophenyl group, benzocarbazolyl group, dibenzocarbazolyl group, dibenzosilolyl group and pyridinyl group; and

Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C ₁ -C ₂₀ alkyl group, C ₁ -C ₂₀ alkoxy group , cyclopentyl group, cyclohexyl group, cycloheptyl group, cyclopentenyl group, cyclohexenyl group, phenyl group, biphenyl group, terphenyl group, phenyl group substituted with C ₁ -C ₁₀ alkyl group, phenyl group substituted with -F, pentale Nyl group, indenyl group, naphthyl group, azulenyl group, hepthalenyl 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, naphthacenyl group, picenyl group, perylenyl group, pentaphenyl group, hexacenyl group, pentacenyl group, Rubisenyl group, coronenyl group, ovalenyl group, thiophenyl group, furanyl group, carbazolyl group, indolyl group, isoindolyl group, benzofuranyl group, benzothiophenyl group, dibenzofuranyl group, dibenzothiophenyl group, benzocarbazole A phenyl group substituted with at least one selected from the group consisting of dibenzocarbazolyl group, dibenzosilolyl group, pyridinyl group, -Si(Q ₃₁ )(Q ₃₂ )(Q ₃₃ ) and -N(Q ₃₁ )(Q ₃₂ ) , biphenyl group, terphenyl group, pentalenyl group, indenyl group, naphthyl group, azulenyl group, heptalenyl 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, naphthacenyl group, picenyl group, perylenyl group, pentaphenyl group , hexacenyl group, pentacenyl group, rubisenyl group, coronenyl group, ovalenyl group, thiophenyl group, furanyl group, carbazolyl group, indolyl group, isoindoleyl group, benzofuranyl group, benzothiophenyl group, dibenzofuranyl group. , dibenzothiophenyl group, benzocarbazolyl group, dibenzocarbazolyl group, dibenzosilolyl group and pyridinyl group;

can be selected from,

For a description of Q ₃₁ to Q ₃₃ , refer to what is described in the present specification.

According to another embodiment, at least one of R ₂₀₁ to R ₂₀₃ in Formula 201 is independently of each other,

fluorenyl group, spiro-bifluorenyl group, carbazolyl group, dibenzofuranyl group and dibenzothiophenyl group; and

Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C ₁ -C ₂₀ alkyl group, C ₁ -C ₂₀ alkoxy group , cyclopentyl group, cyclohexyl group, cycloheptyl group, cyclopentenyl group, cyclohexenyl group, phenyl group, biphenyl group, terphenyl group, phenyl group substituted with C ₁ -C ₁₀ alkyl group, phenyl group substituted with -F, naphthyl group. , fluorenyl group, spiro-bifluorenyl group, carbazolyl group, dibenzofuranyl group and dibenzothiophenyl group, substituted with at least one selected from fluorenyl group, spiro-bifluorenyl group, carbazolyl group, di benzofuranyl group and dibenzothiophenyl group;

It may be selected from among, but is not limited to.

According to another embodiment, in Formula 202, i) R ₂₀₁ and R ₂₀₂ may be connected to each other through a single bond, and/or ii) R ₂₀₃ and R ₂₀₄ may be connected to each other through a single bond.

According to another embodiment, at least one of R ₂₀₁ to R ₂₀₄ in Formula 202 is,

Carbazole Diary; and

Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C ₁ -C ₂₀ alkyl group, C ₁ -C ₂₀ alkoxy group , cyclopentyl group, cyclohexyl group, cycloheptyl group, cyclopentenyl group, cyclohexenyl group, phenyl group, biphenyl group, terphenyl group, phenyl group substituted with C ₁ -C ₁₀ alkyl group, phenyl group substituted with -F, naphthyl group. , a carbazolyl group substituted with at least one selected from a fluorenyl group, a spiro-bifluorenyl group, a carbazolyl group, a dibenzofuranyl group, and a dibenzothiophenyl group;

It may be selected from among, but is not limited to.

The compound represented by Formula 201 may be represented by the following Formula 201A:

<Formula 201A>

For example, the compound represented by Formula 201 may be represented by the following Formula 201A(1), but is not limited thereto:

<Formula 201A(1)>

As another example, the compound represented by Formula 201 may be represented by the following Formula 201A-1, but is not limited thereto:

<Formula 201A-1>

Meanwhile, the compound represented by Formula 202 may be represented by the following Formula 202A:

<Formula 202A>

According to another embodiment, the compound represented by Formula 202 may be represented by the following Formula 202A-1:

<Formula 202A-1>

Among the formulas 201A, 201A(1), 201A-1, 202A and 202A-1,

For descriptions of L ₂₀₁ to L ₂₀₃ , xa1 to xa3, xa5 and R ₂₀₂ to R ₂₀₄ , refer to what is described herein,

For descriptions of R ₂₁₁ and R _212, refer to the description of R ₂₀₃ in this specification,

R ₂₁₃ to R ₂₁₇ are independently of each other hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C ₁ -C ₂₀ alkyl group, C ₁ -C ₂₀ alkoxy group, cyclopentyl group, cyclohexyl group, cycloheptyl group, cyclopentenyl group, cyclohexenyl group, phenyl group, biphenyl group, terphenyl group, C ₁ -C ₁₀ substituted with alkyl group. phenyl group, phenyl group substituted with -F, pentalenyl group, indenyl group, naphthyl group, azulenyl group, heptalenyl group, indacenyl group, acenaphthyl group, fluorenyl group, spiro-bifluorenyl group, benzoflu Orenyl group, dibenzofluorenyl group, phenalenyl group, phenanthrenyl group, anthracenyl group, fluoranthenyl group, triphenylenyl group, pyrenyl group, chrysenyl group, naphthacenyl group, picenyl group, perylenyl group , pentaphenyl group, hexacenyl group, pentacenyl group, rubisenyl group, coronenyl group, ovalenyl group, thiophenyl group, furanyl group, carbazolyl group, indolyl group, isoindolyl group, benzofuranyl group, benzothiophenyl group, di It may be selected from benzofuranyl group, dibenzothiophenyl group, benzocarbazolyl group, dibenzocarbazolyl group, dibenzosilolyl group, and pyridinyl group.

The hole transport region may include at least one compound selected from the following compounds HT1 to HT39, but is not limited thereto:

The thickness of the hole transport region may be about 100Å to about 10000Å, for example, about 100Å to about 1000Å. If 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 is about 100 Å to about 9000 Å, for example, about 100 Å to about 1000 Å, and the thickness of the hole transport layer is about 50 Å. It may be from about 2000 Å, for example from about 100 Å to about 1500 Å. When the thickness of the hole transport region, hole injection layer, and hole transport layer satisfies the above-mentioned ranges, satisfactory hole transport characteristics can be obtained without a substantial increase in driving voltage.

The light emitting auxiliary layer is a layer that serves to increase light emission efficiency by compensating for the optical resonance distance according to the wavelength of light emitted from the light emitting layer, and the electron blocking layer is a layer that serves to prevent electron injection from the electron transport region. am. The light emitting auxiliary layer and the electron blocking layer may include materials as described above.

[p-dopant]

In addition to the materials described above, the hole transport region may further include a charge-generating material to improve conductivity. The charge-generating material may be uniformly or non-uniformly dispersed within the hole transport region.

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

According to one embodiment, the LUMO of the p-dopant may be -3.5 eV or less.

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

For example, the p-dopant is,

Quinone derivatives such as TCNQ (Tetracyanoquinodimethane) and F4-TCNQ (2,3,5,6-Tetrafluoro-7,7,8,8-tetracyanoquinodimethane);

metal oxides such as tungsten oxide and molybdenum oxide;

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

A compound represented by the following formula 221;

It may include, but is not limited to, at least one selected from:

<HAT-CN> <F4-TCNQ>

<Formula 221>

In Formula 221,

R ₂₂₁ to R ₂₂₃ are each independently a substituted or unsubstituted C ₃ -C ₁₀ cycloalkyl group, a substituted or unsubstituted C ₁ -C ₁₀ heterocycloalkyl group, or a substituted or unsubstituted C ₃ -C ₁₀ cycloalkenyl group. , substituted or unsubstituted C ₁ -C ₁₀ heterocycloalkenyl group, substituted or unsubstituted C ₆ -C ₆₀ aryl group, substituted or unsubstituted C ₁ -C ₆₀ heteroaryl group, substituted or unsubstituted monovalent selected from non-aromatic condensed polycyclic groups and substituted or unsubstituted monovalent non-aromatic condensed polycyclic groups, wherein at least one of R ₂₂₁ to R ₂₂₃ is a cyano group, -F, -Cl, -Br, -I, At least one selected from a C ₁ -C ₂₀ alkyl group substituted with -F, a C ₁ -C ₂₀ alkyl group substituted with -Cl, a C ₁ -C ₂₀ alkyl group substituted with -Br, and a C ₁ -C ₂₀ alkyl group substituted with -I It has one substituent.

[Emitting layer of organic layer (150)]

When the organic light emitting device 10 is a full color organic light emitting device, the light emitting layer may be patterned into a red light emitting layer, a green light emitting layer, and a blue light emitting layer for each subpixel. Alternatively, the light-emitting layer has a structure in which two or more layers selected from a red light-emitting layer, a green light-emitting layer, and a blue light-emitting layer are stacked in contact or spaced apart, or two or more materials selected from a red light-emitting material, a green light-emitting material, and a blue light-emitting material are layered. It has a mixed structure and can emit white light.

The light emitting layer may include a host and a dopant. The dopant may include at least one of a phosphorescent dopant and a fluorescent dopant.

The content of the dopant in the light-emitting layer can typically be selected in the range of about 0.01 to about 15 parts by weight based on about 100 parts by weight of the host, but is not limited thereto.

The thickness of the light emitting layer may be about 100Å to about 1000Å, for example, about 200Å to about 600Å. When the thickness of the light-emitting layer satisfies the range described above, excellent light-emitting characteristics can be exhibited without a substantial increase in driving voltage.

[Host in the emitting layer]

The host may include a compound represented by Chemical Formula 301 below.

**<Formula 301>

[Ar ₃₀₁ ] _xb11 -[(L ₃₀₁ ) _xb1 -R ₃₀₁ ] _xb21

In the above formula 301,

**Ar ₃₀₁ is a substituted or unsubstituted C ₅ -C ₆₀ carbocyclic group or a substituted or unsubstituted C ₁ -C ₆₀ heterocyclic group,

xb11 is 1, 2 or 3,

L ₃₀₁ is a substituted or unsubstituted C ₃ -C ₁₀ cycloalkylene group, a substituted or unsubstituted C ₁ -C ₁₀ heterocycloalkylene group, a substituted or unsubstituted C ₃ -C ₁₀ cycloalkenylene group, substituted or Unsubstituted C ₁ -C ₁₀ heterocycloalkenylene group, substituted or unsubstituted C ₆ -C ₆₀ arylene group, substituted or unsubstituted C ₁ -C ₆₀ heteroarylene group, substituted or unsubstituted divalent non- selected from aromatic condensed polycyclic groups and substituted or unsubstituted divalent non-aromatic heterocondensed polycyclic groups,

xb1 is selected from integers from 0 to 5,

R ₃₀₁ silver, deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, substituted or unsubstituted C ₁ -C ₆₀ Alkyl group, substituted or unsubstituted C ₂ -C ₆₀ alkenyl group, substituted or unsubstituted C ₂ -C ₆₀ alkynyl group, substituted or unsubstituted C ₁ -C ₆₀ alkoxy group, substituted or unsubstituted C ₃ -C ₁₀ cycloalkyl group, substituted or unsubstituted C ₁ -C ₁₀ heterocycloalkyl group, substituted or unsubstituted C ₃ -C ₁₀ cycloalkenyl group, substituted or unsubstituted C ₁ -C ₁₀ heterocycloalkenyl group, substituted or unsubstituted Substituted 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, substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group, -Si(Q ₃₀₁ )(Q ₃₀₂ )(Q ₃₀₃ ), -N(Q ₃₀₁ )(Q ₃₀₂ ), -B(Q ₃₀₁ )(Q ₃₀₂ ), -C(=O)(Q ₃₀₁ ), -S(=O) ₂ (Q ₃₀₁ ) and -P(=O)(Q ₃₀₁ ) (Q ₃₀₂ ),

xb21 is selected from integers from 1 to 5,

Q ₃₀₁ to Q ₃₀₃ may be independently selected from a C ₁ -C ₁₀ alkyl group, a C ₁ -C ₁₀ alkoxy group, a phenyl group, a biphenyl group, a terphenyl group, and a naphthyl group, but are not limited thereto.

According to one embodiment, Ar ₃₀₁ in Formula 301 is,

Naphthalene group, fluorene group, spiro-bifluorene group, benzofluorene group, dibenzofluorene group, phenalene group, phenanthrene group, anthracene group, fluoranthene group, triphenylene group, pyrene group , chrysene group, naphthacene group, picene group, perylene group, pentaphene group, indenoanthracene group, dibenzofuran group and dibenzothiophene group; and

Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C ₁ -C ₂₀ alkyl group, C ₁ -C ₂₀ alkoxy group , phenyl group, biphenyl group, terphenyl group, naphthyl group, -Si(Q ₃₁ )(Q ₃₂ )(Q ₃₃ ), -N(Q ₃₁ )(Q ₃₂ ), -B(Q ₃₁ )(Q ₃₂ ), - C(=O)(Q ₃₁ ), -S(=O) ₂ (Q ₃₁ ) and -P(=O)(Q ₃₁ )(Q ₃₂ ), substituted with at least one selected from naphthalene group, fluorene group, Spiro-bifluorene group, benzofluorene group, dibenzofluorene group, phenalene group, phenanthrene group, anthracene group, fluoranthene group, triphenylene group, pyrene group, chrysene group, naphthacene group, picene group, perylene group, pentaphene group, indenoanthracene group, dibenzofuran group and dibenzothiophene group;

is selected from,

Q ₃₁ to Q ₃₃ may be independently selected from a C ₁ -C ₁₀ alkyl group, a C ₁ -C ₁₀ alkoxy group, a phenyl group, a biphenyl group, a terphenyl group, and a naphthyl group, but are not limited thereto.

In Formula 301, when xb11 is 2 or more, 2 or more Ar ₃₀₁ may be connected to each other through a single bond.

According to another embodiment, the compound represented by Formula 301 may be represented by the following Formula 301-1 or 301-2:

<Formula 301-1>

<Formula 301-2>

Of the above formulas 301-1 to 301-2

A ₃₀₁ to A ₃₀₄ are each independently selected from benzene, naphthalene, phenanthrene, fluoranthene, triphenylene, pyrene, chrysene, pyridine, pyrimidine, indene, fluorene, spiro-bifluorene, benzofluor Orene, dibenzofluorene, indole, carbazole, benzocarbazole, dibenzocarbazole, furan, benzofuran, dibenzofuran, naphthofuran, benzonaphthofuran, dinaphthofuran, thiophene, benzothiophene, selected from dibenzothiophene, naphthothiophene, benzonaphthothiophene and dinaphthothiophene,

X ₃₀₁ is O, S or N-[(L ₃₀₄ ) _xb4 -R ₃₀₄ ],

R ₃₁₁ to R ₃₁₄ are independently of each other hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C ₁ -C ₂₀ alkyl group, C ₁ -C ₂₀ alkoxy group, phenyl group, biphenyl group, terphenyl group, naphthyl group -Si(Q ₃₁ )(Q ₃₂ )(Q ₃₃ ), -N(Q ₃₁ )(Q ₃₂ ), - selected from B(Q ₃₁ )(Q ₃₂ ), -C(=O)(Q ₃₁ ), -S(=O) ₂ (Q ₃₁ ) and -P(=O)(Q ₃₁ )(Q ₃₂ ); ,

xb22 and xb23 are independently of each other, 0, 1, or 2,

For descriptions of L ₃₀₁ , xb1, R ₃₀₁ and Q ₃₁ to Q ₃₃ , refer to what is described herein,

For the description of L ₃₀₂ to L ₃₀₄ , refer independently to the description of L ₃₀₁ above,

The description of Xb2 to xb4 independently refers to the description of xb1 above,

The description of R ₃₀₂ to R ₃₀₄ independently refers to the description of R ₃₀₁ above.

For example, in the formulas 301, 301-1 and 301-2, L ₃₀₁ to L ₃₀₄ are independently of each other,

Phenylene group, naphthylene group, fluorenylene group, spiro-bifluorenylene group, benzofluorenylene group, dibenzofluorenylene group, phenanthrenylene group, anthracenylene group, fluoranthenylene group, triphenyl Lenylene group, pyrenylene group, chrysenylene group, perylenylene group, pentaphenylene group, hexacenylene group, pentacenylene group, thiophenylene group, furanylene group, carbazonylene group, indolenylene group, isoindolylene group, benzoyl group Furanylene group, benzothiophenylene group, dibenzofuranylene group, dibenzothiophenylene group, benzocarbazolylene group, dibenzocarbazolylene group, dibenzosylrollylene group, pyridinylene group, imidazolylene group, pyrazonylene group , thiazonylene group, isothiazolylene group, oxazonylene group, isoxazonylene group, thiadiazolylene group, oxadiazolylene group, pyrazinylene group, pyrimidinylene group, pyridazinylene group, triazinylene group, quinolinyl Len group, isoquinolinylene group, benzoquinolinylene group, phthalazinylene group, naphthyridinylene group, quinoxalinilene group, quinazolinylene group, cynolinylene group, phenanthridinylene group, acridinylene group, phenane Trolinylene group, phenazinylene group, benzoimidazolylene group, isobenzothiazonylene group, benzooxazonylene group, isobenzooxazolylene group, triazonylene group, tetrazolylene group, imidazopyridinylene group, imidazopyrimidi nylene group and azacarbazolylene group; and

Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C ₁ -C ₂₀ alkyl group, C ₁ -C ₂₀ alkoxy group , phenyl group, biphenyl group, terphenyl group, naphthyl group, fluorenyl group, spiro-bifluorenyl group, benzofluorenyl group, dibenzofluorenyl group, phenanthrenyl group, anthracenyl group, fluoranthenyl group, triphenyl Renyl group, pyrenyl group, chrysenyl group, perylenyl group, pentaphenyl group, hexacenyl group, pentacenyl group, thiophenyl group, furanyl group, carbazolyl group, indolyl group, isoindolyl group, benzofuranyl group, benzothiophenyl group. , dibenzofuranyl group, dibenzothiophenyl group, benzocarbazolyl group, dibenzocarbazolyl group, dibenzosilolyl group, pyridinyl group, imidazolyl group, pyrazolyl group, thiazolyl group, isothiazolyl group, oxazole Diary group, isoxazolyl group, thiadiazolyl group, oxadiazolyl group, pyrazinyl group, pyrimidinyl group, pyridazinyl group, triazinyl group, quinolinyl group, isoquinolinyl group, benzoquinolinyl group, phthalazinyl group, naphthyridinyl group, quinoxalinyl group, quinazolinyl group, cinolinyl group, phenanthridinyl group, acridinyl group, phenanthrolinyl group, phenazinyl group, benzoimidazolyl group, isobenzothiazolyl group, benzoxazolyl group , isobenzooxazolyl group, triazolyl group, tetrazolyl group, imidazopyridinyl group, imidazopyrimidinyl group, azacarbazolyl group, -Si(Q ₃₁ )(Q ₃₂ )(Q ₃₃ ), -N( Q ₃₁ )(Q ₃₂ ), -B(Q ₃₁ )(Q ₃₂ ), -C(=O)(Q ₃₁ ), -S(=O) ₂ (Q ₃₁ ) and -P(=O)(Q ₃₁ ) (Q ₃₂ ) Substituted with at least one selected from phenylene group, naphthylene group, fluorenylene group, spiro-bifluorenylene group, benzofluorenylene group, dibenzofluorenylene group, phenanthrenyl Len group, anthracenylene group, fluoranthenylene group, triphenylene group, pyrenylene group, chrycenylene group, perylenylene group, pentaphenylene group, hexacenylene group, pentacenylene group, thiophenylene group, furanylene group, carboxymethylene group Zolylene group, indolylene group, isoindolylene group, benzofuranylene group, benzothiophenylene group, dibenzofuranylene group, dibenzothiophenylene group, benzocarbazolylene group, dibenzocarbazolylene group, dibenzosylrollylene group , pyridinylene group, imidazolylene group, pyrazonylene group, thiazonylene group, isothiazolylene group, oxazoylene group, isoxazonylene 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, cinolinyl Len group, phenanthridinylene group, acridinylene group, phenanthrolinylene group, phenazynylene group, benzoimidazolylene group, isobenzothiazonylene group, benzoxazonylene group, isobenzooxazonylene group, triazonylene group, tetrazolyl Len group, imidazopyridinylene group, imidazopyrimidinylene group and azacarbazolylene group;

is selected from,

For a description of Q ₃₁ to Q ₃₃ , refer to what is described in the present specification.

As another example, in Formulas 301, 301-1 and 301-2, R ₃₀₁ to R ₃₀₄ are independently of each other,

Phenyl group, biphenyl group, terphenyl group, naphthyl group, fluorenyl group, spiro-bifluorenyl group, benzofluorenyl group, dibenzofluorenyl group, phenanthrenyl group, anthracenyl group, fluoranthenyl group, triphenyl group Nyl group, pyrenyl group, chrysenyl group, perylenyl group, pentaphenyl group, hexacenyl group, pentacenyl group, thiophenyl group, furanyl group, carbazolyl group, indolyl group, isoindolyl group, benzofuranyl group, benzothiophenyl group, Dibenzofuranyl group, dibenzothiophenyl group, benzocarbazolyl group, dibenzocarbazolyl group, dibenzosilolyl group, pyridinyl group, imidazolyl group, pyrazolyl group, thiazolyl group, isothiazolyl group, oxazolyl group , isoxazolyl group, thiadiazolyl group, oxadiazolyl group, pyrazinyl group, pyrimidinyl group, pyridazinyl group, triazinyl group, quinolinyl group, isoquinolinyl group, benzoquinolinyl group, phthalazinyl group. , naphthyridinyl group, quinoxalinyl group, quinazolinyl group, cynolinyl group, phenanthridinyl group, acridinyl group, phenanthrolinyl group, phenazinyl group, benzoimidazolyl group, isobenzothiazolyl group, benzoxazolyl group, isobenzooxazolyl group, triazolyl group, tetrazolyl group, imidazopyridinyl group, imidazopyrimidinyl group and azacarbazolyl group; and

Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C ₁ -C ₂₀ alkyl group, C ₁ -C ₂₀ alkoxy group , phenyl group, biphenyl group, terphenyl group, naphthyl group, fluorenyl group, spiro-bifluorenyl group, benzofluorenyl group, dibenzofluorenyl group, phenanthrenyl group, anthracenyl group, fluoranthenyl group, triphenyl Renyl group, pyrenyl group, chrysenyl group, perylenyl group, pentaphenyl group, hexacenyl group, pentacenyl group, thiophenyl group, furanyl group, carbazolyl group, indolyl group, isoindolyl group, benzofuranyl group, benzothiophenyl group. , dibenzofuranyl group, dibenzothiophenyl group, benzocarbazolyl group, dibenzocarbazolyl group, dibenzosilolyl group, pyridinyl group, imidazolyl group, pyrazolyl group, thiazolyl group, isothiazolyl group, oxazole Diary group, isoxazolyl group, thiadiazolyl group, oxadiazolyl group, pyrazinyl group, pyrimidinyl group, pyridazinyl group, triazinyl group, quinolinyl group, isoquinolinyl group, benzoquinolinyl group, phthalazinyl group, naphthyridinyl group, quinoxalinyl group, quinazolinyl group, cinolinyl group, phenanthridinyl group, acridinyl group, phenanthrolinyl group, phenazinyl group, benzoimidazolyl group, isobenzothiazolyl group, benzoxazolyl group , isobenzooxazolyl group, triazolyl group, tetrazolyl group, imidazopyridinyl group, imidazopyrimidinyl group, azacarbazolyl group, -Si(Q ₃₁ )(Q ₃₂ )(Q ₃₃ ), -N( Q ₃₁ )(Q ₃₂ ), -B(Q ₃₁ )(Q ₃₂ ), -C(=O)(Q ₃₁ ), -S(=O) ₂ (Q ₃₁ ) and -P(=O)(Q ₃₁ ) (Q ₃₂ ) Substituted with at least one selected from phenyl group, biphenyl group, terphenyl group, naphthyl group, fluorenyl group, spiro-bifluorenyl group, benzofluorenyl group, dibenzofluorenyl group, phenanthrenyl group , anthracenyl group, fluoranthenyl group, triphenylenyl group, pyrenyl group, chrysenyl group, perylenyl group, pentaphenyl group, hexacenyl group, pentacenyl group, thiophenyl group, furanyl group, carbazolyl group, indolyl group. , isoindoleyl group, benzofuranyl group, benzothiophenyl group, dibenzofuranyl group, dibenzothiophenyl group, benzocarbazolyl group, dibenzocarbazolyl group, dibenzosilolyl group, pyridinyl group, imidazolyl group, pyrazolyl group , thiazolyl group, isothiazolyl group, oxazolyl group, isoxazolyl group, thiadiazolyl group, oxadiazolyl group, pyrazinyl group, pyrimidinyl group, pyridazinyl group, triazinyl group, quinolinyl group, iso Quinolinyl group, benzoquinolinyl group, phthalazinyl group, naphthyridinyl group, quinoxalinyl group, quinazolinyl group, cynolinyl group, phenanthridinyl group, acridinyl group, phenanthrolinyl group, phenazinyl group, benzimidazole diary group, isobenzothiazolyl group, benzoxazolyl group, isobenzooxazolyl group, triazolyl group, tetrazolyl group, imidazopyridinyl group, imidazopyrimidinyl group and azacarbazolyl group;

is selected from,

For a description of Q ₃₁ to Q ₃₃ , refer to what is described in the present specification.

As another example, the host may include an alkaline earth metal complex. For example, the host may be selected from Be complex (eg, compound H55 below), Mg complex, and Zn complex.

The host includes ADN (9,10-Di(2-naphthyl)anthracene), MADN (2-Methyl-9,10-bis(naphthalen-2-yl)anthracene), TBADN (9,10-di-(2- naphthyl)-2-t-butyl-anthracene), CBP (4,4′-bis(N-carbazolyl)-1,1′-biphenyl), mCP (1,3-di-9-carbazolylbenzene), TCP (1 , 3,5-tri(carbazol-9-yl)benzene) and at least one selected from the following compounds H1 to H55, but is not limited thereto:

[Phosphorescent dopant included in the light-emitting layer of the organic layer 150]

The phosphorescent dopant may include an organometallic complex represented by the following chemical formula 401:

<Formula 401>

M(L ₄₀₁ ) _xc1 (L ₄₀₂ ) _xc2

<Formula 402>

In formulas 401 and 402,

M is iridium (Ir), platinum (Pt), palladium (Pd), osmium (Os), titanium (Ti), zirconium (Zr), hafnium (Hf), europium (Eu), terbium (Tb), rhodium (Rh) ) and thulium (Tm),

L ₄₀₁ is selected from the ligands represented by formula 402, xc1 is 1, 2, or 3, and when xc1 is 2 or more, 2 or more L ₄₀₁ are the same or different from each other,

L ₄₀₂ is an organic ligand, xc2 is selected from an integer of 0 to 4, and when xc2 is 2 or more, 2 or more L ₄₀₂ are the same or different from each other,

X ₄₀₁ to X ₄₀₄ are each independently nitrogen or carbon,

X ₄₀₁ and X ₄₀₃ are connected through a single bond or double bond, X ₄₀₂ and X ₄₀₄ are connected through a single bond or double bond,

A ₄₀₁ and A ₄₀₂ are, independently of each other, a C ₅ -C ₆₀ carbocyclic group or a C ₁ -C ₆₀ heterocyclic group,

X ₄₀₅ is a single binding, *-o- *', *-S- *', *-c (= o)- *', *-n (Q ₄₁₁ )- *', *-c (Q ₄₁₁ ) Q ₄₁₂ )-*', *-C(Q ₄₁₁ )=C(Q ₄₁₂ )-*', *-C(Q ₄₁₁ )=*' or *=C=*', and Q ₄₁₁ and Q ₄₁₂ are , hydrogen, deuterium, C ₁ -C ₂₀ alkyl group, C ₁ -C ₂₀ alkoxy group, phenyl group, biphenyl group, terphenyl group, or naphthyl group,

X ₄₀₆ is a single bond, O or S,

R ₄₀₁ and R ₄₀₂ are independently of each other hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, substituted or Unsubstituted C ₁ -C ₂₀ alkyl group, substituted or unsubstituted C ₁ -C ₂₀ alkoxy group, 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 ₁ -C ₁₀ heterocycloalkenyl group, substituted or unsubstituted C ₆ -C ₆₀ aryl group, substituted or unsubstituted C ₆ - C ₆₀ aryloxy group, substituted or unsubstituted C ₆ -C ₆₀ arylthio group, substituted or unsubstituted C ₁ -C ₆₀ heteroaryl group, substituted or unsubstituted monovalent non-aromatic condensed polycyclic group and substituted or Unsubstituted monovalent non-aromatic heterocondensed polycyclic 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 ), wherein Q ₄₀₁ to Q ₄₀₃ are independent of each other. is selected from C ₁ -C ₁₀ alkyl group, C ₁ -C ₁₀ alkoxy group, C ₆ -C ₂₀ aryl group and C ₁ -C ₂₀ heteroaryl group,

xc11 and xc12 are independently selected from integers from 0 to 10,

* and *' in Formula 402 are binding sites with M in Formula 401.

According to one embodiment, in Formula 402, A ₄₀₁ and A ₄₀₂ are each independently selected from a benzene group, a naphthalene group, a fluorene group, a spiro-bifluorene group, an indene group, a pyrrole group, a thiophene group, and a furan ( furan) group, imidazole group, pyrazole group, thiazole group, isothiazole group, oxazole group, isoxazole group, pyridine group, pyrazine group, pyrimidine group, pyridazine group, quinoline group, iso Quinoline group, benzoquinoline group, quinoxaline group, quinazoline group, carbazole group, benzoimidazole group, benzofuran group, benzothiophene group, isobenzothiophene group, benzoxazole group, isobenzooxa It may be selected from the sol group, triazole group, tetrazole group, oxadiazole group, triazine group, dibenzofuran group and dibenzothiophene group.

According to another embodiment, in Formula 402, i) X ₄₀₁ may be nitrogen and X ₄₀₂ may be carbon, or ii) both X ₄₀₁ and X ₄₀₂ may be nitrogen.

According to another embodiment, in Formula 402, R ₄₀₁ and R ₄₀₂ are independently of each other,

Hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C ₁ -C ₂₀ alkyl group and C ₁ -C ₂₀ Alkoxy group;

Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, phenyl group, naphthyl group, cyclopentyl group, cyclohexyl group, ada C ₁ -C ₂₀ alkyl group and C ₁ -C ₂₀ alkoxy group substituted with at least one selected from mantanyl group, norbonanyl group and norbornenyl group;

Cyclopentyl group, cyclohexyl group, adamantanyl group, norbonanyl group, norbornenyl group, phenyl group, biphenyl group, terphenyl group, naphthyl group, fluorenyl group, pyridinyl group, pyrazinyl group, pyrimidinyl group, pyridazinyl group, triazinyl group, quinolinyl group, isoquinolinyl group, quinoxalinyl group, quinazolinyl group, carbazolyl group, dibenzofuranyl group and dibenzothiophenyl group;

Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C ₁ -C ₂₀ alkyl group, C ₁ -C ₂₀ alkoxy group , cyclopentyl group, cyclohexyl group, adamantanyl group, norbonanyl group, norbornenyl group, phenyl group, biphenyl group, terphenyl group, naphthyl group, fluorenyl group, pyridinyl group, pyrazinyl group, pyrimidinyl group, pyrida. Cyclopentyl group, cyclohexane substituted with at least one selected from zinyl group, triazinyl group, quinolinyl group, isoquinolinyl group, quinoxalinyl group, quinazolinyl group, carbazolyl group, dibenzofuranyl group and dibenzothiophenyl group. Syl group, adamantanyl group, norbonanyl group, norbornenyl group, phenyl group, biphenyl group, terphenyl group, naphthyl group, fluorenyl group, pyridinyl group, pyrazinyl group, pyrimidinyl group, pyridazinyl group, triazinyl group, quinium Nolinyl group, isoquinolinyl group, quinoxalinyl group, quinazolinyl group, carbazolyl group, dibenzofuranyl group and dibenzothiophenyl group; and

-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 );

is selected from,

Q ₄₀₁ to Q ₄₀₃ may be independently selected from a C ₁ -C ₁₀ alkyl group, a C ₁ -C ₁₀ alkoxy group, a phenyl group, a biphenyl group, and a naphthyl group, but are not limited thereto.

According to another embodiment, when xc1 in Formula 401 is 2 or more, two A ₄₀₁ out of two or more L ₄₀₁ are optionally connected to each other through X ₄₀₇ , which is a linking group, or two A ₄₀₂ are optionally connected to each other. , can be connected to each other through the linking group X ₄₀₈ (see compounds PD1 to PD4 and PD7 below). _Wherein X _{407 and} *-C(Q ₄₁₃ )(Q ₄₁₄ )-*' or *-C(Q ₄₁₃ )=C(Q ₄₁₄ )-*' (where Q ₄₁₃ and Q ₄₁₄ are independently of each other, hydrogen, deuterium, C ₁ -C ₂₀ alkyl group, C ₁ -C ₂₀ alkoxy group, phenyl group, biphenyl group, terphenyl group, or naphthyl group), but is not limited thereto.

In Formula 401, L ₄₀₂ may be any monovalent, divalent, or trivalent organic ligand. For example, the L ₄₀₂ is halogen, diketone (e.g., acetylacetonate), carboxylic acid (e.g., picolinate), -C(=O), isonitrile, -CN, and phosphorus. (For example, phosphine, phosphite), but is not limited thereto.

Alternatively, the phosphorescent dopant may be selected from, for example, the following compounds PD1 to PD25, but is not limited thereto:

[Fluorescent dopant in the emitting layer]

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

The fluorescent dopant may include a compound represented by the following formula 501:

<Formula 501>

In formula 501,

Ar ₅₀₁ is 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 are each independently selected from a substituted or unsubstituted C ₃ -C ₁₀ cycloalkylene group, a substituted or unsubstituted C ₁ -C ₁₀ heterocycloalkylene group, or a substituted or unsubstituted C ₃ -C ₁₀ cycloalkylene group. Alkenylene group, substituted or unsubstituted C ₁ -C ₁₀ heterocycloalkenylene group, substituted or unsubstituted C ₆ -C ₆₀ arylene group, substituted or unsubstituted C ₁ -C ₆₀ heteroarylene group, substituted or unsubstituted selected from a substituted divalent non-aromatic condensed polycyclic group and a substituted or unsubstituted divalent non-aromatic heterocondensed polycyclic group,

xd1 to xd3 are independently selected from integers from 0 to 3,

R ₅₀₁ and R ₅₀₂ are independently of each other, a substituted or unsubstituted C ₃ -C ₁₀ cycloalkyl group, a substituted or unsubstituted C ₁ -C ₁₀ heterocycloalkyl group, or a substituted or unsubstituted C ₃ -C ₁₀ cycloalkenyl group. , substituted or unsubstituted C ₁ -C ₁₀ heterocycloalkenyl group, substituted or unsubstituted C ₆ -C ₆₀ aryl group, substituted or unsubstituted C ₆ -C ₆₀ aryloxy group, substituted or unsubstituted C ₆ -C ₆₀ arylthio group, substituted or unsubstituted C ₁ -C ₆₀ heteroaryl group, substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, and substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group. selected,

xd4 can be selected from integers from 1 to 6.

According to one embodiment, Ar ₅₀₁ in Formula 501 is,

Naphthalene group, hepthalene group, fluorene group, spiro-bifluorene group, benzofluorene group, dibenzofluorene group, phenalene group, phenanthrene group, anthracene group, fluoranthene group, triphenylene group , pyrene group, chrysene group, naphthacene group, picene group, perylene group, pentaphene group, indenoanthracene group and indenophenanthrene group; and

Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C ₁ -C ₂₀ alkyl group, C ₁ -C ₂₀ alkoxy group , naphthalene group, hepthalene group, fluorene group, spiro-bifluorene group, benzofluorene group, dibenzofluorene group, phenalene, substituted with at least one selected from phenyl group, biphenyl group, terphenyl group and naphthyl group. group, phenanthrene group, anthracene group, fluoranthene group, triphenylene group, pyrene group, chrysene group, naphthacene group, picene group, perylene group, pentaphene group, indenoanthracene group and indenophenan. Tren Group;

can be selected from among.

According to another embodiment, in Formula 501, L ₅₀₁ to L ₅₀₃ are independently of each other,

Phenylene group, naphthylene group, fluorenylene group, spiro-bifluorenylene group, benzofluorenylene group, dibenzofluorenylene group, phenanthrenylene group, anthracenylene group, fluoranthenylene group, triphenyl Lenylene group, pyrenylene group, chrysenylene group, perylenylene group, pentaphenylene group, hexacenylene group, pentacenylene group, thiophenylene group, furanylene group, carbazonylene group, indolenylene group, isoindolylene group, benzoyl group furanylene group, benzothiophenylene group, dibenzofuranylene group, dibenzothiophenylene group, benzocarbazolylene group, dibenzocarbazolylene group, dibenzosylrollylene group, pyridinylene group; and

Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C ₁ -C ₂₀ alkyl group, C ₁ -C ₂₀ alkoxy group , phenyl group, biphenyl group, terphenyl group, naphthyl group, fluorenyl group, spiro-bifluorenyl group, benzofluorenyl group, dibenzofluorenyl group, phenanthrenyl group, anthracenyl group, fluoranthenyl group, triphenyl Renyl group, pyrenyl group, chrysenyl group, perylenyl group, pentaphenyl group, hexacenyl group, pentacenyl group, thiophenyl group, furanyl group, carbazolyl group, indolyl group, isoindolyl group, benzofuranyl group, benzothiophenyl group. , dibenzofuranyl group, dibenzothiophenyl group, benzocarbazolyl group, dibenzocarbazolyl group, dibenzosilolyl group and pyridinyl group, substituted with at least one selected from phenylene group, naphthylene group, fluorenylene group, spy Rho-bifluorenylene group, benzofluorenylene group, dibenzofluorenylene group, phenanthrenylene group, anthracenylene group, fluoranthenylene group, triphenylenylene group, pyrenylene group, chrysenylene group, perile Nylene group, pentaphenylene group, hexacenylene group, pentacenylene group, thiophenylene group, furanylene group, carbazoylene group, indolylene group, isoindolylene group, benzofuranylene group, benzothiophenylene group, dibenzofuranyl Len group, dibenzothiophenylene group, benzocarbazolylene group, dibenzocarbazolylene group, dibenzosylrollylene group, pyridinylene group;

can be selected from among.

According to another embodiment, in Formula 501, R ₅₀₁ and R ₅₀₂ are independently of each other,

Phenyl group, biphenyl group, terphenyl group, naphthyl group, fluorenyl group, spiro-bifluorenyl group, benzofluorenyl group, dibenzofluorenyl group, phenanthrenyl group, anthracenyl group, fluoranthenyl group, triphenyl group Nyl group, pyrenyl group, chrysenyl group, perylenyl group, pentaphenyl group, hexacenyl group, pentacenyl group, thiophenyl group, furanyl group, carbazolyl group, indolyl group, isoindolyl group, benzofuranyl group, benzothiophenyl group, Dibenzofuranyl group, dibenzothiophenyl group, benzocarbazolyl group, dibenzocarbazolyl group, dibenzosilolyl group and pyridinyl group; and

Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C ₁ -C ₂₀ alkyl group, C ₁ -C ₂₀ alkoxy group , phenyl group, biphenyl group, terphenyl group, naphthyl group, fluorenyl group, spiro-bifluorenyl group, benzofluorenyl group, dibenzofluorenyl group, phenanthrenyl group, anthracenyl group, fluoranthenyl group, triphenyl Renyl group, pyrenyl group, chrysenyl group, perylenyl group, pentaphenyl group, hexacenyl group, pentacenyl group, thiophenyl group, furanyl group, carbazolyl group, indolyl group, isoindolyl group, benzofuranyl group, benzothiophenyl group. , dibenzofuranyl group, dibenzothiophenyl group, benzocarbazolyl group, dibenzocarbazolyl group, dibenzosilolyl group, pyridinyl group and -Si (Q ₃₁ ) (Q ₃₂ ) (Q ₃₃ ). phenyl group, biphenyl group, terphenyl group, naphthyl group, fluorenyl group, spiro-bifluorenyl group, benzofluorenyl group, dibenzofluorenyl group, phenanthrenyl group, anthracenyl group, fluoranthenyl group, tri Phenylenyl group, pyrenyl group, chrysenyl group, perylenyl group, pentaphenyl group, hexacenyl group, pentacenyl group, thiophenyl group, furanyl group, carbazolyl group, indolyl group, isoindolyl group, benzofuranyl group, benzothio phenyl group, dibenzofuranyl group, dibenzothiophenyl group, benzocarbazolyl group, dibenzocarbazolyl group, dibenzosilolyl group and pyridinyl group;

is selected from,

Q ₃₁ to Q ₃₃ may be selected from a C ₁ -C ₁₀ alkyl group, a C ₁ -C ₁₀ alkoxy group, a phenyl group, a biphenyl group, a terphenyl group, and a naphthyl group.

According to another embodiment, xd4 in Formula 501 may be 2, but is not limited thereto.

For example, the fluorescent dopant may be selected from the following compounds FD1 to FD22:

Alternatively, the fluorescent dopant may be selected from the following compounds, but is not limited thereto.

[Electron transport area in organic layer 150]

The electron transport region has i) a single-layer structure consisting of a single layer made of a single material, ii) a single-layer structure consisting of a single layer made of a plurality of different materials, or iii) a multi-layer structure having a plurality of layers made of a plurality of different materials. You can have

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 (ETL), and an electron injection layer, but is not limited thereto.

For example, the electron transport region may be an electron transport layer/electron injection layer, a hole blocking layer/electron transport layer/electron injection layer, an electron control layer/electron transport layer/electron injection layer, or a buffer layer/electron transport layer/ It may have a structure such as an electron injection layer, but is not limited to this.

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

The "π electron-deficient nitrogen ring" refers to a C ₁ -C ₆₀ heterocyclic group having at least one *-N=*' moiety as a ring-forming moiety.

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

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

For example, the electron transport region may include a compound represented by Chemical Formula 601 below.

<Formula 601>

[Ar ₆₀₁ ] _xe11 -[(L ₆₀₁ ) _xe1 -R ₆₀₁ ] _xe21

In the above formula 601,

Ar ₆₀₁ is a substituted or unsubstituted C ₅ -C ₆₀ carbocyclic group or a substituted or unsubstituted C ₁ -C ₆₀ heterocyclic group,

xe11 is 1, 2, or 3,

L ₆₀₁ is a substituted or unsubstituted C ₃ -C ₁₀ cycloalkylene group, a substituted or unsubstituted C ₁ -C ₁₀ heterocycloalkylene group, a substituted or unsubstituted C ₃ -C ₁₀ cycloalkenylene group, substituted or Unsubstituted C ₁ -C ₁₀ heterocycloalkenylene group, substituted or unsubstituted C ₆ -C ₆₀ arylene group, substituted or unsubstituted C ₁ -C ₆₀ heteroarylene group, substituted or unsubstituted divalent non- selected from aromatic condensed polycyclic groups and substituted or unsubstituted divalent non-aromatic heterocondensed polycyclic groups,

xe1 is selected from integers from 0 to 5,

R ₆₀₁ is 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 ₁ -C ₁₀ heterocycloalkenyl group, substituted or unsubstituted C ₆ -C ₆₀ aryl group, substituted or unsubstituted C ₆ -C ₆₀ aryloxy group, substituted or unsubstituted C ₆ -C ₆₀ arylthio group , substituted or unsubstituted C ₁ -C ₆₀ heteroaryl group, substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group, -Si(Q ₆₀₁ ) (Q ₆₀₂ )(Q ₆₀₃ ), -C(=O)(Q ₆₀₁ ), -S(=O) ₂ (Q ₆₀₁ ) and -P(=O)(Q ₆₀₁ )(Q ₆₀₂ ) and ,

Q ₆₀₁ to Q ₆₀₃ are each independently a C ₁ -C ₁₀ alkyl group, a C ₁ -C ₁₀ alkoxy group, a phenyl group, a biphenyl group, a terphenyl group, or a naphthyl group,

xe21 is selected from an integer from 1 to 5.

According to one embodiment, at least one of the xe11 Ar _601s and the xe21 R _601s may include a π electron-deficient nitrogen-containing ring as described above.

According to one embodiment, ring Ar ₆₀₁ in Formula 601 is,

Benzene group, naphthalene group, fluorene group, spiro-bifluorene group, benzofluorene group, dibenzofluorene group, phenalene group, phenanthrene group, anthracene group, fluoranthene group, triphenylene group, Pyrene group, chrysene group, naphthacene group, picene group, perylene group, pentaphene group, indenoanthracene group, dibenzofuran group, dibenzothiophene group, carbazole group, imidazole group, pyrazole group , thiazole group, isothiazole group, oxazole group, isoxazole group, pyridine group, pyrazine group, pyrimidine group, pyridazine group, indazole group, purine group, quinoline group, isoquinoline group, benzoquinoline group, Phthalazine group, naphthyridine group, quinoxaline group, quinazoline group, cinnoline group, phenanthridine group, acridine group, phenanthroline group, phenazine group, benzoimidazole group, isobenzothiazole group , benzoxazole group, isobenzoxazole group, triazole group, tetrazole group, oxadiazole group, triazine group, thiadiazole group, imidazopyridine group, imidazopyrimidine group and azacarbazole group. ; and

Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C ₁ -C ₂₀ alkyl group, C ₁ -C ₂₀ alkoxy group , phenyl group, biphenyl group, terphenyl group, naphthyl group, -Si(Q ₃₁ )(Q ₃₂ )(Q ₃₃ ), -S(=O) ₂ (Q ₃₁ ) and -P(=O)(Q ₃₁ )( Q ₃₂ ) substituted with at least one selected from a benzene group, a naphthalene group, a fluorene group, a spiro-bifluorene group, a benzofluorene group, a dibenzofluorene group, a phenalene group, a phenanthrene group, an anthracene group, Fluoranthene group, triphenylene group, pyrene group, chrysene group, naphthacene group, picene group, perylene group, pentaphene group, indenoanthracene group, dibenzofuran group, dibenzothiophene group, carba Sol group, imidazole group, pyrazole group, thiazole group, isothiazole group, oxazole group, isoxazole group, pyridine group, pyrazine group, pyrimidine group, pyridazine group, indazole group, purine group, quinoline group, isoquinoline group, benzoquinoline group, phthalazine group, naphthyridine group, quinoxaline group, quinazoline group, cinoline group, phenanthridine group, acridine group, phenanthroline group, phenazine group, Benzoimidazole group, isobenzothiazole group, benzoxazole group, isobenzoxazole group, triazole group, tetrazole group, oxadiazole group, triazine group, thiadiazole group, imidazopyridine group, imidazopyridine group, polyzopyrimidine group and azacarbazole group;

can be selected from,

Q ₃₁ to Q ₃₃ may be independently selected from a C ₁ -C ₁₀ alkyl group, a C ₁ -C ₁₀ alkoxy group, a phenyl group, a biphenyl group, a terphenyl group, and a naphthyl group.

In Formula 601, when xe11 is 2 or more, 2 or more Ar ₆₀₁ may be connected to each other through a single bond.

According to another embodiment, Ar ₆₀₁ in Formula 601 may be an anthracene group.

According to another embodiment, the compound represented by 601 may be represented by the following formula 601-1:

<Formula 601-1>

In the above formula 601-1,

X ₆₁₄ is N or C(R ₆₁₄ ), X _{615 is} N or C(R ₆₁₅ ), X ₆₁₆ is N or C(R ₆₁₆ ), and at least one _of

L ₆₁₁ to L ₆₁₃ are independent of each other, refer to the description of L ₆₀₁ above,

xe611 to xe613 are independent of each other, refer to the description of xe1 above,

R ₆₁₁ to R ₆₁₃ are independent of each other, refer to the description of R ₆₀₁ above,

R ₆₁₄ to R ₆₁₆ are independently of each other hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C ₁ It may be selected from -C ₂₀ alkyl group, C ₁ -C ₂₀ alkoxy group, phenyl group, biphenyl group, terphenyl group, and naphthyl group.

According to one embodiment, in Formulas 601 and 601-1, L ₆₀₁ and L ₆₁₁ to L ₆₁₃ are independently of each other,

Phenylene group, naphthylene group, fluorenylene group, spiro-bifluorenylene group, benzofluorenylene group, dibenzofluorenylene group, phenanthrenylene group, anthracenylene group, fluoranthenylene group, triphenyl Lenylene group, pyrenylene group, chrysenylene group, perylenylene group, pentaphenylene group, hexacenylene group, pentacenylene group, thiophenylene group, furanylene group, carbazonylene group, indolenylene group, isoindolylene group, benzoyl group Furanylene group, benzothiophenylene group, dibenzofuranylene group, dibenzothiophenylene group, benzocarbazolylene group, dibenzocarbazolylene group, dibenzosylrollylene group, pyridinylene group, imidazolylene group, pyrazonylene group , thiazonylene group, isothiazolylene group, oxazonylene group, isoxazonylene group, thiadiazolylene group, oxadiazolylene group, pyrazinylene group, pyrimidinylene group, pyridazinylene group, triazinylene group, quinolinyl Len group, isoquinolinylene group, benzoquinolinylene group, phthalazinylene group, naphthyridinylene group, quinoxalinilene group, quinazolinylene group, cynolinylene group, phenanthridinylene group, acridinylene group, phenane Trolinylene group, phenazinylene group, benzoimidazolylene group, isobenzothiazonylene group, benzooxazonylene group, isobenzooxazolylene group, triazonylene group, tetrazolylene group, imidazopyridinylene group, imidazopyrimidi nylene group and azacarbazolylene group; and

Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C ₁ -C ₂₀ alkyl group, C ₁ -C ₂₀ alkoxy group , phenyl group, biphenyl group, terphenyl group, naphthyl group, fluorenyl group, spiro-bifluorenyl group, benzofluorenyl group, dibenzofluorenyl group, phenanthrenyl group, anthracenyl group, fluoranthenyl group, triphenyl Renyl group, pyrenyl group, chrysenyl group, perylenyl group, pentaphenyl group, hexacenyl group, pentacenyl group, thiophenyl group, furanyl group, carbazolyl group, indolyl group, isoindolyl group, benzofuranyl group, benzothiophenyl group. , dibenzofuranyl group, dibenzothiophenyl group, benzocarbazolyl group, dibenzocarbazolyl group, dibenzosilolyl group, pyridinyl group, imidazolyl group, pyrazolyl group, thiazolyl group, isothiazolyl group, oxazole Diary group, isoxazolyl group, thiadiazolyl group, oxadiazolyl group, pyrazinyl group, pyrimidinyl group, pyridazinyl group, triazinyl group, quinolinyl group, isoquinolinyl group, benzoquinolinyl group, phthalazinyl group, naphthyridinyl group, quinoxalinyl group, quinazolinyl group, cinolinyl group, phenanthridinyl group, acridinyl group, phenanthrolinyl group, phenazinyl group, benzoimidazolyl group, isobenzothiazolyl group, benzoxazolyl group , isobenzooxazolyl group, triazolyl group, tetrazolyl group, imidazopyridinyl group, imidazopyrimidinyl group and azacarbazolyl group, substituted with at least one selected from phenylene group, naphthylene group, fluorenylene group, Spiro-bifluorenylene group, benzofluorenylene group, dibenzofluorenylene group, phenanthrenylene group, anthracenylene group, fluoranthenylene group, triphenylenylene group, pyrenylene group, chrysenylene group, pe Relenylene group, pentaphenylene group, hexacenylene group, pentacenylene group, thiophenylene group, furanylene group, carbazoylene group, indolylene group, isoindolylene group, benzofuranylene group, benzothiophenylene group, dibenzofu Lanylene group, dibenzothiophenylene group, benzocarbazolylene group, dibenzocarbazolylene group, dibenzosylrollylene group, pyridinylene group, imidazolylene group, pyrazoylene group, thiazonylene group, isothiazolylene group, oxazolyl Len group, isoxazolylene group, thiadiazolylene group, oxadiazolylene group, pyrazinylene group, pyrimidinylene group, pyridazinylene group, triazinylene group, quinolinylene group, isoquinolinylene group, benzoquinolinyl Len group, phthalazinylene group, naphthyridinylene group, quinoxalinilene group, quinazolinylene group, cinolinylene group, phenanthridinylene group, acridinylene group, phenanthrolinylene group, phenazynylene group, benzoimidazolyl Len group, isobenzothiazonylene group, benzoxazonylene group, isobenzooxazonylene group, triazonylene group, tetrazolylene group, imidazopyridinylene group, imidazopyrimidinylene group and azacarbazolylene group;

It may be selected from among, but is not limited to.

According to another embodiment, xe1 and xe611 to xe613 in Formulas 601 and 601-1 may be independently 0, 1, or 2.

According to another embodiment, in Formulas 601 and 601-1, R ₆₀₁ and R ₆₁₁ to R ₆₁₃ are independently of each other,

Phenyl group, biphenyl group, terphenyl group, naphthyl group, fluorenyl group, spiro-bifluorenyl group, benzofluorenyl group, dibenzofluorenyl group, phenanthrenyl group, anthracenyl group, fluoranthenyl group, triphenyl group Nyl group, pyrenyl group, chrysenyl group, perylenyl group, pentaphenyl group, hexacenyl group, pentacenyl group, thiophenyl group, furanyl group, carbazolyl group, indolyl group, isoindolyl group, benzofuranyl group, benzothiophenyl group, Dibenzofuranyl group, dibenzothiophenyl group, benzocarbazolyl group, dibenzocarbazolyl group, dibenzosilolyl group, pyridinyl group, imidazolyl group, pyrazolyl group, thiazolyl group, isothiazolyl group, oxazolyl group , isoxazolyl group, thiadiazolyl group, oxadiazolyl group, pyrazinyl group, pyrimidinyl group, pyridazinyl group, triazinyl group, quinolinyl group, isoquinolinyl group, benzoquinolinyl group, phthalazinyl group. , naphthyridinyl group, quinoxalinyl group, quinazolinyl group, cynolinyl group, phenanthridinyl group, acridinyl group, phenanthrolinyl group, phenazinyl group, benzoimidazolyl group, isobenzothiazolyl group, benzoxazolyl group, isobenzooxazolyl group, triazolyl group, tetrazolyl group, imidazopyridinyl group, imidazopyrimidinyl group and azacarbazolyl group;

Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C ₁ -C ₂₀ alkyl group, C ₁ -C ₂₀ alkoxy group , phenyl group, biphenyl group, terphenyl group, naphthyl group, fluorenyl group, spiro-bifluorenyl group, benzofluorenyl group, dibenzofluorenyl group, phenanthrenyl group, anthracenyl group, fluoranthenyl group, triphenyl Renyl group, pyrenyl group, chrysenyl group, perylenyl group, pentaphenyl group, hexacenyl group, pentacenyl group, thiophenyl group, furanyl group, carbazolyl group, indolyl group, isoindolyl group, benzofuranyl group, benzothiophenyl group. , dibenzofuranyl group, dibenzothiophenyl group, benzocarbazolyl group, dibenzocarbazolyl group, dibenzosilolyl group, pyridinyl group, imidazolyl group, pyrazolyl group, thiazolyl group, isothiazolyl group, oxazole Diary group, isoxazolyl group, thiadiazolyl group, oxadiazolyl group, pyrazinyl group, pyrimidinyl group, pyridazinyl group, triazinyl group, quinolinyl group, isoquinolinyl group, benzoquinolinyl group, phthalazinyl group, naphthyridinyl group, quinoxalinyl group, quinazolinyl group, cinolinyl group, phenanthridinyl group, acridinyl group, phenanthrolinyl group, phenazinyl group, benzoimidazolyl group, isobenzothiazolyl group, benzoxazolyl group , isobenzooxazolyl group, triazolyl group, tetrazolyl group, imidazopyridinyl group, imidazopyrimidinyl group and azacarbazolyl group, substituted with at least one selected from the group consisting of phenyl group, biphenyl group, terphenyl group, naphthyl group, flu Orenyl group, spiro-bifluorenyl group, benzofluorenyl group, dibenzofluorenyl group, phenanthrenyl group, anthracenyl group, fluoranthenyl group, triphenylenyl group, pyrenyl group, chrysenyl group, perile Nyl group, pentaphenyl group, hexacenyl group, pentacenyl group, thiophenyl group, furanyl group, carbazolyl group, indolyl group, isoindolyl group, benzofuranyl group, benzothiophenyl group, dibenzofuranyl group, dibenzothiophenyl group, benzocarba Zolyl group, dibenzocarbazolyl group, dibenzosilolyl group, pyridinyl group, imidazolyl group, pyrazolyl group, thiazolyl group, isothiazolyl group, oxazolyl group, isoxazolyl group, thiadiazolyl group, oxadia Zolyl group, pyrazinyl group, pyrimidinyl group, pyridazinyl group, triazinyl group, quinolinyl group, isoquinolinyl group, benzoquinolinyl group, phthalazinyl group, naphthyridinyl group, quinoxalinyl group, quinazolinyl group , cinolinyl group, phenanthridinyl group, acridinyl group, phenanthrolinyl group, phenazinyl group, benzoimidazolyl group, isobenzothiazolyl group, benzoxazolyl group, isobenzooxazolyl group, triazolyl group, tetrazole diary group, imidazopyridinyl group, imidazopyrimidinyl group and azacarbazolyl group; and

-S(=O) ₂ (Q ₆₀₁ ) and -P(=O)(Q ₆₀₁ )(Q ₆₀₂ );

is selected from,

For descriptions of Q ₆₀₁ and Q ₆₀₂ , refer to what is described herein.

The electron transport region may include at least one compound selected from the following compounds ET1 to ET36, but is not limited thereto:

Alternatively, the electron transport region may be BCP (2,9-Dimethyl-4,7-diphenyl-1,10-phenanthroline), Bphen (4,7-Diphenyl-1,10-phenanthroline), Alq ₃ , BAlq, TAZ ( It may include at least one compound selected from 3-(Biphenyl-4-yl)-5-(4- tert -butylphenyl)-4-phenyl- 4H -1,2,4-triazole) and NTAZ.

The thickness of the buffer layer, hole blocking layer, or electron control layer may independently range from about 20 Å to about 1000 Å, for example, from about 30 Å to about 300 Å. When the thickness of the buffer layer, hole blocking layer, or electron control layer satisfies the above-mentioned range, excellent hole blocking characteristics or electron control characteristics can be obtained without a substantial increase in driving voltage.

The thickness of the electron transport layer may be about 100Å to about 1000Å, for example, about 150Å to about 500Å. When the thickness of the electron transport layer satisfies the range described above, satisfactory electron transport characteristics can be obtained without a substantial increase in driving voltage.

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

The metal-containing material may include at least one selected from an alkali metal complex and an alkaline earth metal complex. The metal ion of the alkaline metal complex may be selected from Li ions, Na ions, K ions, Rb ions, and Cs ions, and the metal ions of the alkaline earth metal complex may include Be ions, Mg ions, Ca ions, Sr ions, and Ba ions may be selected. The ligands coordinated to the metal ions of the alkali metal complex and the alkaline earth metal complex are, independently of each other, hydroxyquinoline, hydroxyisoquinoline, hydroxybenzoquinoline, hydroxyacridine, hydroxyphenanthridine, and hydroxyphenyl. Oxazole, hydroxyphenylthiazole, hydroxyphenyloxadiazole, hydroxyphenylthiadiazole, hydroxyphenylpyridine, hydroxyphenylbenzoimidazole, hydroxyphenylbenzothiazole, bipyridine, phenanthroline and cyclo It may be selected from pentadiene, but is not limited thereto.

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

The electron transport region may include an electron injection layer that facilitates electron injection from the second electrode 190. The electron injection layer may directly contact the second electrode 190.

The electron injection layer has i) a single-layer structure consisting of a single layer made of a single material, ii) a single-layer structure consisting of a single layer made of a plurality of different materials, or iii) a multi-layer structure having a plurality of layers made of a plurality of different materials. You can have

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

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

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

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

The alkali metal compound, the alkaline earth metal compound, and the rare earth metal compound may be selected from oxides and halides (e.g., fluoride, chloride, bromide, iodide, etc.) of the alkali metal, alkaline earth metal, and rare earth metal. there is.

The alkali metal compound may be selected from alkali metal oxides such as Li ₂ O, Cs ₂ O, K ₂ O, and alkali metal halides such as LiF, NaF, CsF, KF, LiI, NaI, CsI, KI, and the like. According to one embodiment, the alkali metal compound may be selected from LiF, Li ₂ O, NaF, LiI, NaI, CsI, and KI, but is not limited thereto.

The alkaline earth metal compound may be selected from alkaline earth metal compounds such as BaO, SrO, CaO, Ba _x Sr _1-x O (0<x<1), Ba _x Ca _1-x O (0<x<1), etc. there is. According to one embodiment, the alkaline earth metal compound may be selected from BaO, SrO, and CaO, but is not limited thereto.

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

The alkali metal complex, alkaline earth metal complex, and rare earth metal complex include ions of the alkali metal, alkaline earth metal, and rare earth metal as described above, and are coordinated to the metal ions of the alkali metal complex, alkaline earth metal complex, and rare earth metal complex. The ligands are, independently of each other, hydroxyquinoline, hydroxyisoquinoline, hydroxybenzoquinoline, hydroxyacridine, hydroxyphenanthridine, hydroxyphenyloxazole, hydroxyphenylthiazole, and hydroxyphenyloxadia. It may be selected from sol, hydroxyphenylthiadiazole, hydroxyphenylpyridine, hydroxyphenylbenzoimidazole, hydroxyphenylbenzothiazole, bipyridine, phenanthroline, and cyclopentadiene, but is not limited thereto. .

The electron injection layer is composed of only an alkali metal, an alkaline earth metal, a rare earth metal, an alkali metal compound, an alkaline earth metal compound, a rare earth metal compound, an alkali metal complex, an alkaline earth metal complex, a rare earth metal complex, or any combination thereof as described above. , may further include the above organic material. When the electron injection layer further includes an organic material, the alkali metal, alkaline earth metal, rare earth metal, alkali metal compound, alkaline earth metal compound, rare earth metal compound, alkali metal complex, alkaline earth metal complex, rare earth metal complex, or any of these. The combination may be uniformly or non-uniformly dispersed in the matrix made of the organic material.

The thickness of the electron injection layer may be about 1Å to about 100Å, or about 3Å to about 90Å. When the thickness of the electron injection layer satisfies the range described above, satisfactory electron injection characteristics can be obtained without a substantial increase in driving voltage.

[Second electrode (190)]

The second electrode 190 is disposed on the organic layer 150 as described above. The second electrode 190 may be a cathode, which is an electron injection electrode. In this case, materials for the second electrode 190 include metals, alloys, electrically conductive compounds, and combinations thereof having a low work function. (combination) can be used.

The second electrode 190 includes lithium (Li), silver (Ag), magnesium (Mg), aluminum (Al), aluminum-lithium (Al-Li), calcium (Ca), and magnesium-indium (Mg-In). ), magnesium-silver (Mg-Ag), ITO, and IZO, but is not limited thereto. The second electrode 190 may be a transmissive electrode, a semi-transmissive electrode, or a reflective electrode.

The second electrode 190 may have a single-layer structure or a multi-layer structure having a plurality of layers.

[Description of Figures 2 to 4]

Meanwhile, the organic light emitting device 20 of FIG. 2 has a structure in which a first capping layer 210, a first electrode 110, an organic layer 150, and a second electrode 190 are sequentially stacked, and the organic light emitting device 20 of FIG. 3 The light emitting device 30 has a structure in which a first electrode 110, an organic layer 150, a second electrode 190, and a second capping layer 220 are sequentially stacked, and the organic light emitting device 40 of FIG. 4 is It has a structure in which the first capping layer 210, the first electrode 110, the organic layer 150, the second electrode 190, and the second capping layer 220 are sequentially stacked.

For descriptions of the first electrode 110, the organic layer 150, and the second electrode 190 in FIGS. 2 to 4, refer to the description of FIG. 1.

The light generated in the light-emitting layer of the organic layer 150 of the organic light-emitting device 20 and 40 may pass through the first electrode 110 and the first capping layer 210, which are semi-transmissive electrodes or transmissive electrodes, and be extracted to the outside. Light generated in the light-emitting layer of the organic layer 150 of the organic light-emitting devices 30 and 40 may be extracted to the outside through the second electrode 190 and the second capping layer 220, which are semi-transmissive or transmissive electrodes.

The first capping layer 210 and the second capping layer 220 may serve to improve external light emission efficiency based on the principle of constructive interference.

The first capping layer 210 and the second capping layer 220 may independently be an organic capping layer made of an organic material, an inorganic capping layer made of an inorganic material, or a composite capping layer including an organic material and an inorganic material.

At least one of the first capping layer 210 and the second capping layer 220 is, independently of each other, a carbocyclic compound, a heterocyclic compound, an amine-based compound, a porphine derivative, a phthalocyanine derivative ( It may include at least one material selected from phthalocyanine derivatives, naphthalocyanine derivatives, alkali metal complexes, and alkaline earth metal complexes. The carbocyclic compounds, heterocyclic compounds and amine compounds may be optionally substituted with a substituent containing at least one element selected from O, N, S, Se, Si, F, Cl, Br and I. . According to one embodiment, at least one of the first capping layer 210 and the second capping layer 220 may independently include an amine-based compound.

According to another embodiment, at least one of the first capping layer 210 and the second capping layer 220 may independently include a compound represented by Formula 201 or a compound represented by Formula 202. there is.

According to another embodiment, at least one of the first capping layer 210 and the second capping layer 220 may independently include a compound selected from the compounds HT28 to HT33 and the following compounds CP1 to CP5. However, it is not limited to this.

Above, the organic light emitting device has been described with reference to FIGS. 1 to 4, but is not limited thereto.

Each layer included in the hole transport region, the light emitting layer, and each layer included in the electron transport region are, respectively, vacuum deposition method, spin coating method, cast method, LB method (Langmuir-Blodgett), inkjet printing method, laser printing method, and laser method. It can be formed in a predetermined area using various methods such as thermal transfer (Laser Induced Thermal Imaging, LITI).

When forming each layer included in the hole transport region, the light emitting layer, and each layer included in the electron transport region by vacuum deposition, the deposition conditions are, for example, a deposition temperature of about 100 to about 500° C., about 10 A vacuum degree of ^-8 to about 10 ^-3 torr and a deposition rate of about 0.01 to about 100 Å/sec may be selected in consideration of the materials to be included in the layer to be formed and the structure of the layer to be formed.

When forming each layer included in the hole transport region, the light emitting layer, and each layer included in the electron transport region by spin coating, the coating conditions include, for example, a coating speed of about 2000 rpm to about 5000 rpm and a coating speed of about 80 rpm. The heat treatment temperature within the range of ℃ to 200℃ can be selected in consideration of the materials to be included in the layer to be formed and the structure of the layer to be formed.

[General definition of substituent]

As used herein, C ₁ -C ₆₀ alkyl group refers to a linear or branched aliphatic hydrocarbon monovalent group having 1 to 60 carbon atoms, and specific examples include methyl group, ethyl group, propyl group, isobutyl group, and sec-butyl group. group, ter-butyl group, pentyl group, iso-amyl group, hexyl group, etc. As used herein, the C ₁ -C ₆₀ alkylene group refers to a divalent group having the same structure as the C ₁ -C ₆₀ alkyl group.

As used herein, the C ₂ -C ₆₀ alkenyl group refers to a hydrocarbon group containing at least one carbon double bond at the middle or end of the C ₂ -C ₆₀ alkyl group, and specific examples thereof include ethenyl group, propenyl group, and butenyl group. etc. are included. As used herein, the C ₂ -C ₆₀ alkenylene group refers to a divalent group having the same structure as the C ₂ -C ₆₀ alkenyl group.

**As used herein, C ₂ -C ₆₀ alkynyl group refers to a hydrocarbon group containing at least one carbon triple bond at the middle or end of the C ₂ -C ₆₀ alkyl group, and specific examples thereof include ethynyl group, propynyl group, etc. are included. As used herein, the C ₂ -C ₆₀ alkynylene group refers to a divalent group having the same structure as the C ₂ -C ₆₀ alkynyl group.

As used herein, C ₁ -C ₆₀ alkoxy group refers to a monovalent group having the chemical formula -OA ₁₀₁ (where A ₁₀₁ is the C ₁ -C ₆₀ alkyl group), and specific examples thereof include methoxy group and ethoxy group. , isopropyloxy group, etc.

As used herein, C ₃ -C ₁₀ cycloalkyl group refers to a monovalent saturated hydrocarbon monocyclic group having 3 to 10 carbon atoms, and specific examples thereof include cyclopropyl group, cyclobutyl group, cyclopentyl group, cyclohexyl group, and cyclo Heptyl group, etc. are included. As used herein, the C ₃ -C ₁₀ cycloalkylene group refers to a divalent group having the same structure as the C ₃ -C ₁₀ cycloalkyl group.

As used herein, C ₁ -C ₁₀ heterocycloalkyl group refers to a monovalent monocyclic group having 1 to 10 carbon atoms containing at least one hetero atom selected from N, O, Si, P and S as a ring-forming atom. , Specific examples thereof include 1,2,3,4-oxatriazolidinyl, tetrahydrofuranyl, tetrahydrothiophenyl, etc. As used herein, the C ₁ -C ₁₀ heterocycloalkylene group refers to a divalent group having the same structure as the C ₁ -C ₁₀ heterocycloalkyl group.

As used herein, C ₃ -C ₁₀ cycloalkenyl group refers to a monovalent monocyclic group having 3 to 10 carbon atoms, which has at least one double bond in the ring but does not have aromaticity, and its specific details Examples include cyclopentenyl group, cyclohexenyl group, cycloheptenyl group, etc. As used herein, the C ₃ -C ₁₀ cycloalkenylene group refers to a divalent group having the same structure as the C ₃ -C ₁₀ cycloalkenyl group.

As used herein, the C ₁ -C ₁₀ heterocycloalkenyl group is a monovalent monocyclic group having 1 to 10 carbon atoms containing at least one hetero atom selected from N, O, Si, P and S as a ring-forming atom, forming a ring. It has at least one double bond within it. Specific examples of the C ₁ -C ₁₀ heterocycloalkenyl group include 4,5-dihydro-1,2,3,4-oxatriazolyl group, 2,3-dihydrofuranyl group, 2,3-dihydro Thiophenyl group, etc. are included. As used herein, the C ₁ -C ₁₀ heterocycloalkenylene group refers to a divalent group having the same structure as the C ₁ -C ₁₀ heterocycloalkenyl group.

As used herein, the C ₆ -C ₆₀ aryl group refers to a monovalent group having a carbocyclic aromatic system having 6 to 60 carbon atoms, and the C ₆ -C ₆₀ arylene group refers to a carbocyclic aromatic system having 6 to 60 carbon atoms. It means a divalent group with . Specific examples of the C ₆ -C ₆₀ aryl group include phenyl group, naphthyl group, anthracenyl group, phenanthrenyl group, pyrenyl group, chrysenyl group, etc. When the C ₆ -C ₆₀ aryl group and the C ₆ -C ₆₀ arylene group include two or more rings, the two or more rings may be condensed with each other.

As used herein, the C ₁ -C ₆₀ heteroaryl group is a monovalent group containing at least one hetero atom selected from N, O, Si, P and S as a ring-forming atom and having a heterocyclic aromatic system having 1 to 60 carbon atoms. means, and the C ₁ -C ₆₀ heteroarylene group is 2 which contains at least one hetero atom selected from N, O, Si, P and S as a ring-forming atom and has a heterocyclic aromatic system having 1 to 60 carbon atoms. means group. Specific examples of the C ₁ -C ₆₀ heteroaryl group include pyridinyl group, pyrimidinyl group, pyrazinyl group, pyridazinyl group, triazinyl group, quinolinyl group, isoquinolinyl group, etc. When the C ₁ -C ₆₀ heteroaryl group and the C ₁ -C ₆₀ heteroarylene group include two or more rings, the two or more rings may be condensed with each other.

As used herein, the C ₆ -C ₆₀ aryloxy group refers to -OA ₁₀₂ (where A ₁₀₂ is the C ₆ -C ₆₀ aryl group), and the C ₆ -C 60 arylthio group refers to -SA ₁₀₃ (where A 102 is the C 6 -C ₆₀ aryl group). , A ₁₀₃ refers to the C ₆ -C ₆₀ aryl group).

As used herein, a monovalent non-aromatic condensed polycyclic group has two or more rings condensed with each other, contains only carbon as a ring forming atom, and the entire molecule is non-aromatic. It means a monovalent group having (for example, having 8 to 60 carbon atoms). Specific examples of the monovalent non-aromatic condensed polycyclic group include a fluorenyl group and the like. As used herein, a divalent non-aromatic condensed polycyclic group refers to a divalent group having the same structure as the monovalent non-aromatic condensed polycyclic group.

As used herein, a monovalent non-aromatic condensed heteropolycyclic group (non-aromatic condensed heteropolycyclic group) has two or more rings condensed with each other, and at least one selected from N, O, Si, P and S in addition to carbon as a ring forming atom. It refers to a monovalent group (for example, having 1 to 60 carbon atoms) that contains a heteroatom and the entire molecule is non-aromatic. Specific examples of the monovalent non-aromatic condensed heteropolycyclic group include carbazolyl group and the like. As used herein, a divalent non-aromatic condensed heteropolycyclic group refers to a divalent group having the same structure as the monovalent non-aromatic condensed heteropolycyclic group.

As used herein, the C ₅ -C ₆₀ carbocyclic group refers to a monocyclic or polycyclic group having 5 to 60 carbon atoms containing only carbon as a ring-forming atom. The C ₅ -C ₆₀ carbocyclic group may be an aromatic carbocyclic group or a non-aromatic carbocyclic group. The C ₅ -C ₆₀ carbocyclic group may be a ring such as benzene, a monovalent group such as a phenyl group, or a divalent group such as a phenylene group. Alternatively, depending on the number of substituents connected to the C ₅ -C ₆₀ carbocyclic group, various modifications are possible, such as the C ₅ -C ₆₀ carbocyclic group being a trivalent group or a tetravalent group.

As used herein, the C ₁ -C ₆₀ heterocyclic group has the same structure as the C ₅ -C ₆₀ carbocyclic group, but as ring-forming atoms, in addition to carbon (carbon number may be 1 to 60), N , refers to a group containing at least one hetero atom selected from O, Si, P and S.

As used herein, the substituted C ₅ -C ₆₀ carbocyclic group, substituted C ₁ -C ₆₀ heterocyclic group, substituted C ₃ -C ₁₀ cycloalkylene group, substituted C ₁ -C ₁₀ heterocycloalkyl Len group, substituted C ₃ -C ₁₀ cycloalkenylene group, substituted C ₁ -C ₁₀ heterocycloalkenylene group, substituted C ₆ -C ₆₀ arylene group, substituted C ₁ -C ₆₀ heteroarylene group, substituted Divalent non-aromatic condensed polycyclic group, substituted divalent non-aromatic condensed heteropolycyclic group, substituted C ₁ -C ₆₀ alkyl group, substituted C ₂ -C ₆₀ alkenyl group, substituted C ₂ -C ₆₀ alkynyl group, Substituted C ₁ -C ₆₀ alkoxy group, substituted C ₃ -C ₁₀ cycloalkyl group, substituted C ₁ -C ₁₀ heterocycloalkyl group, substituted C ₃ -C ₁₀ cycloalkenyl group, substituted C ₁ -C ₁₀ hetero Cycloalkenyl group, substituted C ₆ -C ₆₀ aryl group, substituted C ₆ -C ₆₀ aryloxy group, substituted C ₆ -C ₆₀ arylthio group, substituted C ₁ -C ₆₀ heteroaryl group, substituted 1 At least one of the substituents of the monovalent non-aromatic condensed polycyclic group and the substituted monovalent non-aromatic condensed heteropolycyclic group is,

Deuterium (-D), -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C ₁ -C ₆₀ alkyl group, C ₂ - C ₆₀ alkenyl group, C ₂ -C ₆₀ alkynyl group and C ₁ -C ₆₀ alkoxy group;

Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C ₃ -C ₁₀ cycloalkyl group, C ₁ -C ₁₀ hetero Cycloalkyl group, C ₃ -C ₁₀ cycloalkenyl group, C ₁ -C ₁₀ heterocycloalkenyl group, C ₆ -C ₆₀ aryl group, C ₆ -C ₆₀ aryloxy group, C ₆ -C ₆₀ arylthio group, C ₁ -C ₆₀ heteroaryl group, monovalent non-aromatic condensed polycyclic group, monovalent non-aromatic condensed heteropolycyclic group, -Si(Q ₁₁ )(Q ₁₂ )(Q ₁₃ ), -N(Q ₁₁ )(Q ₁₂ ), -B(Q ₁₁ )(Q ₁₂ ), -C(=O)(Q ₁₁ ), -S(=O) ₂ (Q ₁₁ ), and -P(=O)(Q ₁₁ )(Q ₁₂ ). C ₁ -C ₆₀ alkyl group, C ₂ -C ₆₀ alkenyl group, C ₂ -C ₆₀ alkynyl group and C ₁ -C ₆₀ alkoxy group substituted with at least one selected from among;

C ₃ -C ₁₀ cycloalkyl group, C ₁ -C ₁₀ heterocycloalkyl group, C ₃ -C ₁₀ cycloalkenyl group, C ₁ -C ₁₀ heterocycloalkenyl group, C ₆ -C ₆₀ aryl group, C ₆ -C ₆₀ aryl Oxy group, C ₆ -C ₆₀ arylthio group, C ₁ -C ₆₀ heteroaryl group, monovalent non-aromatic condensed polycyclic group and monovalent non-aromatic condensed heteropolycyclic group;

Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C ₁ -C ₆₀ alkyl group, C ₂ -C ₆₀ alkenyl group , C ₂ -C ₆₀ alkynyl group, C ₁ -C ₆₀ alkoxy group, C ₃ -C ₁₀ cycloalkyl group, C ₁ -C ₁₀ heterocycloalkyl group, C ₃ -C ₁₀ cycloalkenyl group, C ₁ -C ₁₀ heterocyclo Alkenyl group, C ₆ -C ₆₀ aryl group, C ₆ -C ₆₀ aryloxy group, C ₆ -C ₆₀ arylthio group, C ₁ -C ₆₀ heteroaryl group, monovalent non-aromatic condensed polycyclic group, monovalent non-aromatic group -aromatic heterocondensed polycyclic group, -Si(Q ₂₁ )(Q ₂₂ )(Q ₂₃ ), -N(Q ₂₁ )(Q ₂₂ ), -B(Q ₂₁ )(Q ₂₂ ), -C(=O) (Q ₂₁ ), -S(=O) ₂ (Q ₂₁ ) and -P(=O)(Q ₂₁ )(Q ₂₂ ), C ₃ -C ₁₀ cycloalkyl group, C ₁ -C substituted with at least one selected from ₁₀ heterocycloalkyl group, C ₃ -C ₁₀ cycloalkenyl group, C ₁ -C ₁₀ heterocycloalkenyl group, C ₆ -C ₆₀ aryl group, C ₆ -C ₆₀ aryloxy group, C ₆ -C ₆₀ arylthio group, C ₁ -C ₆₀ heteroaryl group, monovalent non-aromatic condensed polycyclic group and monovalent non-aromatic condensed heteropolycyclic group; and

-Si(Q ₃₁ )(Q ₃₂ )(Q ₃₃ ), -N(Q ₃₁ )(Q ₃₂ ), -B(Q ₃₁ )(Q ₃₂ ), -C(=O)(Q ₃₁ ), -S (=O) ₂ (Q ₃₁ ) and -P(=O)(Q ₃₁ )(Q ₃₂ );

is selected from,

Q ₁₁ to Q ₁₃ , Q ₂₁ to Q ₂₃ and Q ₃₁ to Q ₃₃ are each independently selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amine Dino group, hydrazino group, hydrazono group, C ₁ -C ₆₀ alkyl group, C ₂ -C ₆₀ alkenyl group, C ₂ -C ₆₀ alkynyl group, C ₁ -C ₆₀ alkoxy group, C ₃ -C ₁₀ cycloalkyl group, C ₁ -C ₁₀ heterocycloalkyl group, C ₃ -C ₁₀ cycloalkenyl group, C ₁ -C ₁₀ heterocycloalkenyl group, C ₆ -C ₆₀ aryl group, C ₁ -C ₆₀ heteroaryl group, monovalent non-aromatic It may be selected from a condensed polycyclic group, a monovalent non-aromatic heterocondensed polycyclic group, a biphenyl group, and a terphenyl group.

In this specification, “Ph” means a phenyl group, “Me” means a methyl group, “Et” means an ethyl group, “ter-Bu” or “Bu ^t ” means a tert-butyl group, and “OMe " means a methoxy group.

As used herein, “biphenyl group” means “a phenyl group substituted with a phenyl group.” The “biphenyl group” belongs to the “substituted phenyl group” in which the substituent is a “C ₆ -C ₆₀ aryl group”.

As used herein, “terphenyl group” means “phenyl group substituted with a biphenyl group.” The “terphenyl group” belongs to the “substituted phenyl group” in which the substituent is a “C ₆ -C ₆₀ aryl group substituted with a C ₆ -C ₆₀ aryl group”.

In this specification, * and *' refer to bonding sites with neighboring atoms in the corresponding chemical formula, unless otherwise defined.

Hereinafter, a compound and an organic light-emitting device according to an embodiment of the present invention will be described in more detail through synthesis examples and examples. In the following synthesis example, in the expression "B was used instead of A," the molar equivalent of A and the molar equivalent of B are the same.

[Synthesis example]

Synthesis Example 1: Synthesis of Compound 1

(1) Synthesis of intermediate 1-1

1-bromodibenzo[ b,d ]furan (a) (5g), 9,9-dimethyl-9 H -fluoren-2-amine (b) (6.4g), K _t OBu(Potassium tert-butoxide) (6.4g), P(tBu) ₃ (0.3g), and Pd ₂ (dba) ₃ (0.4g) were diluted in toluene and stirred under reflux. After 20 hours, the temperature was lowered to room temperature and the reaction was terminated with water. It was extracted three times using ethyl acetate, dried using anhydrous magnesium sulfate, and then filtered under reduced pressure. The residue thus obtained was separated and purified using column chromatography to obtain Intermediate 1-1 6.5 (86%). The produced compound was confirmed through LC-MS. C27H21NO : calc'd : M+ 375.16 foun'd : 375.26

(2) Synthesis of Compound 1

Intermediate 1-1 (3.8g) is used instead of intermediate (b), and 3-iodo-9-phenyl-9H-carbazole (c) (3.7g) is used instead of 1-bromodibenzo[ b , d ]furan (a). Compound 1 was obtained in the same manner as Intermediate 1-1 except that.

C45H32N2O : calc'd : M+ 616.25 foun'd : 616.35

Synthesis Example 2: Synthesis of Compound 2

(1) Synthesis of intermediate 2-1

Intermediate 2-1 (8.2g, 82%) was obtained in the same manner as Intermediate 1-1, except that Intermediate (d) (8g) was used instead of Intermediate (b). C37H25NO: calc'd : M+ 499.19 foun'd : 499.29

(2) Synthesis of Compound 2

Compound 2 was obtained in the same manner as Compound 1, except that Intermediate 2-1 (5g) was used instead of Intermediate 1-1. C55H36N2O : calc'd : M+ 740.28 foun'd : 740.38

Synthesis Example 3: Synthesis of Compound 3

(1) Synthesis of intermediate 3-1

Intermediate 3-1 (5.2g, 52%) was obtained in the same manner as Intermediate 1-1, except that Intermediate (e) (8g) was used instead of Intermediate (b). C37H25NO: calc'd : M+ 497.18 foun'd : 497.28

(2) Synthesis of compound 3

Compound 3 (7.4g, 75%) was obtained in the same manner as Compound 1, except that Intermediate 3-1 (5g) was used instead of Intermediate 1-1. C55H36N2O : calc'd : M+ 740.28 foun'd : 740.38

Synthesis Example 4: Synthesis of Compound 4

(1) Synthesis of intermediate 4-1

Instead of intermediate (a) (5g) and intermediate (b), 1-bromodibenzo[b,d]furan (4.9g) and spiro[cyclopentane-1,9'-fluoren]-2'-amine (7.1g) were used, respectively. Intermediate 4-1 (5.1 g, 64%) was obtained in the same manner as Intermediate 1-1 except that.

C29H23NO : calc'd : M+ 401.18 foun'd : 401.20

(2) Synthesis of Compound 4

Same method as Intermediate 1-1 except that Intermediate 4-1 (4g) and 3-iodo-9-phenyl-9H-carbazole (3.7g) are used instead of Intermediate (a) (5g) and Intermediate (b), respectively. Compound 4 (4.6g, 72%) was obtained.

C47H34N2O : calc'd : M+ 647.27 foun'd : 647.28

¹ H NMR (500 MHz, CDCl ₃ ) δ= 8.22(m, 1H), 7.79(dd, 2H), 7.72(dd, 1H), 7.67(d, 1H), 7.54-7.14(m, 17H), 6.95 (d, 1H), 6.90(dd, 1H), 6.66(dd, 1H),. 6.54(dd, 1H), 2.19-2.08(m, 2H), 1.95-1.72(m, 6H)

Synthesis Example 5: Synthesis of Compound 5

Intermediate 1-, except that intermediate 1-1 (3.8 g) was used instead of intermediate (b), and 3-bromo-9-(4-fluorophenyl)-9H-carbazole (3.4 g) was used instead of intermediate (a). Compound 5 (4.7g, 74%) was obtained in the same manner as 1. C45H31FN2O : calc'd : M+ 634.24 foun'd : 634.34

Synthesis Example 6: Synthesis of Compound 6

Intermediate 1-1, except that Intermediate 2-1 (5 g) is used instead of Intermediate (b), and 3-bromo-9-(4-fluorophenyl)-9H-carbazole (3.4 g) is used instead of Intermediate (a). Compound 6 (5.2 g, 68%) was obtained in the same manner. C55H35FN2O : calc'd : M+ 758.27 foun'd : 758.37

Synthesis Example 7: Synthesis of Compound 8

Compound 8 (5g, 76%) was obtained in the same manner as compound 4, except for using intermediate 4-1 (4g) and 9-(4-fluorophenyl)-3-iodo-9H-carbazole (3.9g).

C47H33FN2O : calc'd : M+ 660.26 foun'd : 660.27

¹ H NMR (500 MHz, CDCl ₃ ) δ= 8.22(m, 1H), 7.79(dd, 2H), 7.72(dd, 1H), 7.67(d, 1H), 7.48-7.23(m, 13H), 7.18 -7.14(m, 1H), 7.09-7.04(m, 2H), 6.95(d, 1H), 6.90(dd, 1H), 6.66(dd, 1H),. 6.54(dd, 1H), 2.19-2.08(m, 2H), 1.95-1.72(m, 6H)

Synthesis Example 8: Synthesis of Compound 16

Compound 16 ( 4.7g, 66%) was obtained.

C53H38N2O : calc'd : M+ 718.30 foun'd : 718.33

¹ H NMR (500 MHz, CDCl ₃ ) δ= 8.22(m, 1H), 7.79(dd, 2H), 7.72(dd, 1H), 7.67(d, 1H), 7.63-7.59(m, 2H), 7.57 -7.23(m, 18H), 7.18(dt, 1H), 6.95(d, 1H), 6.90(dd, 1H), 6.66(dd, 1H), 6.59(dd, 1H), 2.19-2.08(m, 2H) ), 1.95-1.72(m, 6H)

Synthesis Example 9: Synthesis of Compound 21

Compound in the same manner as Intermediate 1-1, except that Intermediate 1-1 (3.8g) was used instead of Intermediate (b), and 2-bromodibenzo[b,d]furan (2.5g) was used instead of Intermediate (a). 21 (4.3g, 80%) was obtained. C45H31FN2O: calc'd: M+ 541.20 foun'd: 541.30

Synthesis Example 10: Synthesis of Compound 37

Compound 37 (3.8g, 76%) was obtained.

C36H24N2O M+ calc'd : 500.19 foun'd : 500.29

Synthesis Example 11: Synthesis of Compound 93

Compound 93 (5.1g, 74g) in the same manner as Intermediate 1-1, except that Intermediate 1-1 (3.8g) was used instead of Intermediate (b), and Intermediate 93-1 (4g) was used instead of Intermediate (a). %) was obtained.

C51H36N2O M+ calc'd : 692.28 foun'd : 692.38

Synthesis Example 12: Synthesis of Compound 94

Compound 94 (6.3g, 77%) in the same manner as Intermediate 1-1, except that Intermediate 2-1 (5g) was used instead of Intermediate (b) and Intermediate 93-1 (4g) was used instead of Intermediate (a). ) was obtained.

C61H40N2O M+ calc'd : 816.31 foun'd : 816.41

Synthesis Example 13: Synthesis of Compound 95

Compound 95 (6.1g, 75%) in the same manner as Intermediate 1-1, except that Intermediate 3-1 (5g) was used instead of Intermediate (b) and Intermediate 93-1 (4g) was used instead of Intermediate (a). ) was obtained.

C61H38N2O M+ calc'd : 814.30 foun'd : 814.40

Synthesis Example 14: Synthesis of Compound 101

Compound 101 (7.1g, 75%) was obtained.

C51H35FN2O M+ calc'd : 710.27 foun'd : 710.37

Synthesis Example 15: Synthesis of Compound 187

In the same manner as Intermediate 1-1, except that Intermediate 2-1 (2.5 g) and 2-bromo-9,9-diphenyl-9H-fluorene (2 g) were used instead of Intermediate (a) and Intermediate (b), respectively. Compound 187 (3.1g, 77%) was obtained.

C62H39NO : calc'd : M+ 813.30 foun'd : 813.34

¹ H NMR (500 MHz, CDCl ₃ ) δ= 7.92-7.84(m, 4H), 7.79(m, 1H), 7.72(dd, 1H), 7.61(d, 1H), 7.58(d, 1H), 7.48 -7.41(m, 5H), 7.36-7.28(m, 3H), 7.21-7.06(m, 14H), 6.92(dd, 1H), 6.81-6.72(m, 5H), 6.66(dd, 1H), 6.57 (d, 1H), 6.43(d, 1H)

Synthesis Example 16: Synthesis of Compound 188

In the same manner as Intermediate 1-1, except that Intermediate 3-1 (2.5g) and 2-bromo-9,9'-spirobi[fluorene] (2g) were used instead of Intermediate (a) and Intermediate (b), respectively. Compound 188 (3.3g, 81%) was obtained.

C62H37NO : calc'd : M+ 811.29 foun'd : 811.31

¹ H NMR (500 MHz, CDCl ₃ ) δ= 7.92(dd, 4H), 7.89(dd, 2H), 7.79(td, 1H), 7.72(dd, 1H), 7.61(d, 2H), 7.48-7.41 (m, 7H), 7.36-7.26(m, 3H), 7.21-7.15(m, 6H), 6.92(dd, 2H), 6.77-6.73(m, 6H), 6.68(dd, 1H), 6.43(d) , 2H)

Synthesis Example 17: Synthesis of Compound 204

Compound in the same manner as Intermediate 1-1, except that Intermediate 2-1 (5g) was used instead of Intermediate (b), and 2-bromo-1,1'-biphenyl (2.3g) was used instead of Intermediate (a). 204 (3.8g, 58%) was obtained.

C49H33NO : M+ calc'd : 651.26 foun'd : 651.36

Synthesis Example 18: Synthesis of Compound 210

(1) Synthesis of intermediate 210-1

Except that [1,1'-biphenyl]-2-amine (2.5g) and 1-bromodibenzo[b,d]furan (2.5g) are used instead of intermediate (b) and intermediate (a) (5g), respectively. Intermediate 210-1 (3g, 91%) was obtained in the same manner as Intermediate 1-1.

C24H17NO: calc'd : M+ 335.13 foun'd : 335.14

(2) Synthesis of compound 210

In the same manner as Intermediate 1-1, except that Intermediate 210-1 (3g) and 2-bromo-9,9'-spirobi[fluorene] (3.7g) were used instead of Intermediate (b) and Intermediate (a), respectively. Compound 210 (5.1g, 86%) was obtained.

C49H31NO: calc'd : M+649.24 foun'd : 649.25

¹ H NMR (500 MHz, CDCl ₃ ) δ= 7.92(dd, 2H), 7.89(dd, 1H), 7.80(d, 1H), 7.72(d, 1H), 7.59-7.51(m, 5H), 7.49 -7.41(m, 5H), 7.32-7.27(m, 3H), 7.21-7.14(m, 5H), 7.01(t, 1H), 6.77-6.73(m, 4H), 6.66(dd, 1H), 6.61 (dd, 1H),5.47(d, 1H)

Synthesis Example 19: Synthesis of Compound 213

(1) Synthesis of intermediate 213-2

2,7-dibromo-9,9'-spirobi[fluorene] (4.7g) and phenyl boronic acid (3.4g) are diluted in tetrahydrofuran (60ml) and water (20ml). K ₂ CO ₃ (4.1 g) and Pd(PPh ₃ ) ₄ (580 mg) were added dropwise and stirred under reflux at 65°C. When the reaction was completed, the temperature was slowly lowered to room temperature, extracted three times with ethyl acetate, and filtered under reduced pressure. Afterwards, the residue obtained by distillation under reduced pressure was separated and purified by column chromatography to obtain intermediate 213-2 (4.4 g, 93%).

C31H19Br : calc'd : M+ 470.07 foun'd : 470.08

(2) Synthesis of intermediate 213-1

Except that [1,1'-biphenyl]-4-amine (2.5g) and 1-bromodibenzo[b,d]furan (2.5g) are used instead of intermediate (b) and intermediate (a) (5g), respectively. Intermediate 213-1 (3g, 91%) was obtained in the same manner as Intermediate 1-1.

C24H17NO: calc'd : M+ 335.13 foun'd : 335.14

(3) Synthesis of compound 213

Compound 213 (5.1 g, 79%) in the same manner as Intermediate 1-1, except that Intermediate 213-2 (4.4 g) and Intermediate 213-1 (3 g) were used instead of Intermediate (a) and Intermediate (b), respectively. got it

C55H35NO: calc'd : M+ 725.27 foun'd : 725.30

¹ H NMR (500 MHz, CDCl ₃ ) δ= 7.93(dd, 2H), 7.79-7.78(m, 2H), 7.72-7.59(m, 6H), 7.54-7.28(m, 15H), 7.20(t, 2H), 6.89(m, 2H), 6.75(dd, 2H), 6.68(dd, 1H), 6.56-6.54(m, 2H), 5.68(d, 1H)

Synthesis Example 20: Synthesis of Compound 219

Compound 219 (3.1g, 81)% was prepared in the same manner as Intermediate 1-1, except that Intermediate 213- (2.4g) and Intermediate 1-1 (1.9g) were used instead of Intermediate (a) and Intermediate (b), respectively. got it

C58H39NO : calc'd : M+ 765.30 foun'd : 765.34

¹ H NMR (500 MHz, CDCl ₃ ) δ= 7.93(dd, 2H), 7.79-7.67(m, 6H), 7.62(d, 1H), 7.53-7.28(m, 11H), 7.18(dt, 2H) , 7.11(dd, 2H), 6.89-6.82(m, 3H), 6.75(dd, 2H), 6.68(dd, 1H), 6.50(d, 1H). 6.10(d, 1H), 1.61(s, 6H)

Synthesis Example 21: Synthesis of Compound 240

In the same manner as Intermediate 1-1, except that 6-bromo-2,9-diphenyl-9H-carbazole (2g) and Intermediate 213-1 (1.7g) were used instead of Intermediate (a) and Intermediate (b), respectively. Compound 240 (2.5 g, 78%) was obtained.

C48H32N2O: calc'd: M+ 625.25 foun'd: 625.29

¹ H NMR (500 MHz, CDCl ₃ ) δ= 7.86(dd, 1H), 7.79-7.76(m, 2H), 7.73-7.70(m, 3H), 7.65-7.61(m, 2H), 7.55-7.28( m, 18H), 7.24-7.21(m, 2H), 6.70-6.65(m, 3H), 6.59(dd, 1H)

Synthesis Example 22: Synthesis of Compound 251

(1) Synthesis of intermediate 251-1

Except for using 9,9-dimethyl-9H-fluoren-1-amine (2.1g) and 1-bromodibenzo[b,d]furan (2.5g) instead of intermediate (b) and intermediate (a) (5g), respectively. And intermediate 251-1 (3.1g, 83%) was obtained in the same manner as intermediate 1-1.

C27H21NO: calc'd : M+ 375.16 foun'd : 375.19

(2) Synthesis of compound 251

Compound in the same manner as Intermediate 1-1, except that Intermediate 251-1 (3.1 g) and 3-iodo-9-phenyl-9H-carbazole (3.1 g) were used instead of Intermediate (b) and Intermediate (a), respectively. 251 (4g, 78%) was obtained.

C45H32N2O: calc'd: M+ 616.25 foun'd: 616.29

¹ H NMR (500 MHz, CDCl ₃ ) δ= 8.22(d, 1H), 7.82(d,1 H), 7.77(td, 1H), 7.70(dd, 1H), 7.54-7.44(m, 7H), 7.39-7.22(m, 10H), 7.11(dd, 1H), 6.96(dd, 1H), 6.57-6.47(m, 3H), 1.68(s, 6H)

Synthesis Example 23: Synthesis of Compound 253

(1) Synthesis of intermediate 253-1

Except for using 9,9-dimethyl-9H-fluoren-4-amine (2.1g) and 1-bromodibenzo[b,d]furan (2.5g) instead of intermediate (b) and intermediate (a) (5g), respectively. And intermediate 253-1 (3.5 g, 92%) was obtained in the same manner as intermediate 1-1.

C27H21NO: calc'd : M+ 375.16 foun'd : 375.19

(2) Synthesis of compound 253

Compound in the same manner as Intermediate 1-1, except that Intermediate 253-1 (3.5 g) and 3-iodo-9-phenyl-9H-carbazole (3.6 g) were used instead of Intermediate (b) and Intermediate (a), respectively. 253 (4.6g, 81%) was obtained.

C45H32N2O: calc'd: M+ 616.25 foun'd: 616.29

¹ H NMR (500 MHz, CDCl ₃ ) δ= 8.22(d, 1H), 7.82(d,1 H), 7.72(d, 1H), 7.63(dd,1 H), 7.51-7.21(m, 16H) , 7.14-7.07(m, 2H), 6.86(dd, 1H), 6.61-6.59(m, 1H), 6.53(dd, 1H), 6.24(td, 1H), 1.61(s, 6H)

Synthesis Example 24: Synthesis of Compound 256

Intermediate 1-1 and Intermediate 1-1, except that Intermediate 253-1 (3.5 g) and 3-bromo-9-(4-fluorophenyl)-9H-carbazole (3.2 g) were used instead of Intermediate (b) and Intermediate (a), respectively. Compound 256 (5.0g, 84%) was obtained in the same way.

C45H31FN2O: calc'd: M+ 634.24 foun'd: 634.25

¹ H NMR (500 MHz, CDCl ₃ ) δ= 8.23(d, 1H), 7.82(d, 1H), 7.72(td,1 H), 7.62(dd, 1H), 7.58-7.35(m, 3H), 7.34-7.21(m, 10H), 7.14-7.03(m, 4H), 6.86(dd, 1H), 6.61(m, 1H), 6.53(dd,1 H), 6.24(dd, 1H, 1.61(s, 6H)

Synthesis Example 25: Synthesis of Compound 268

(1) Synthesis of intermediate 268-1

Except for using 9,9-dimethyl-9H-fluoren-2-amine (2.1g) and 1-bromodibenzo[b,d]furan (2.5g) instead of intermediate (b) and intermediate (a) (5g), respectively. And intermediate 268-1 (3.2g, 85%) was obtained in the same manner as intermediate 1-1.

C27H21NO: calc'd : M+ 375.16 foun'd : 375.18

(2) Synthesis of compound 268

Compound 268 (5.7g, 88%) in the same manner as Intermediate 1-1, except that Intermediate 268-1 (3.2g) and Intermediate 213-2 (4.0g) were used instead of Intermediate (b) and Intermediate (a), respectively. ) was obtained.

C58H39NO: calc'd : M+ 765.30 foun'd : 765.32

¹ H NMR (500 MHz, CDCl ₃ ) δ= 7.93(dd, 2H), 7.79-7.66(m, 6H). 7.62(d, 1H), 7.53-7.29(m, 11H), 7.20(dt,2 H), 7.11-7.04(m, 4H), 6.89(d,1 H), 6.87(t, 1H), 6.75( t, 1H), 6.74(d, 1H), 6.66(dd, 1H), 6.42(dd,1 H), 5.68(d,1 H), 1.52(s, 6H)

Synthesis Example 26: Synthesis of Compound 269

Compound 269 (4.8g, 74%) in the same manner as Intermediate 1-1, except that Intermediate 253-1 (3.2g) and 213-2 (4.0g) were used instead of Intermediate (b) and Intermediate (a), respectively. got it

C58H39NO: calc'd : M+ 765.30 foun'd : 765.32

¹ H NMR (500 MHz, CDCl ₃ ) δ= 7.93(d, 2H), 7.82(d, 1H), 7.80(d, 1H), 7.72-7.58(m, 5H), 7.53-7.36(m, 7H) , 7.33-7.05(m, 9H), 6.87-6.84(m, 2H), 6.79(dd,1 H), 6.75(dd,2 H), 6.61(m, 1H), 6.23(d, 1H), 5.49 (d, 1H), 1.61(s, 6H)

Synthesis Example 27: Synthesis of Compound 278

Same method as Intermediate 1-1 except that Intermediate 253-1 (3.2g) and 2-bromo-9,9'-spirobi[fluorene] (3.8g) are used instead of Intermediate (b) and Intermediate (a), respectively. Compound 278 (4.3g, 86%) was obtained.

C52H35NO: calc'd : M+ 689.27 foun'd : 689.28

¹ H NMR (500 MHz, CDCl ₃ ) δ= 7.92(d, 2H), 7.89(d, 1H), 7.82(d,1 H), 7.72(d, 1H), 7.62(dd, 1H), 7.59( d,1 H), 7.48-7.41(m, 4H), 7.32-7.06(m, 10H), 6.87(d, 1H), 6.81(dd,1 H), 6.77-6.73(m, 3H), 6.61( m,1 H), 6.23(d, 1H), 5.72(dd, 1H), 1.61(s, 6H)

Synthesis Example 28: Synthesis of Compound 281

(1) Synthesis of intermediate 281-1

Except for using 9,9-diphenyl-9H-fluoren-4-amine (3.3g) and 1-bromodibenzo[b,d]furan (2.5g) instead of intermediate (b) and intermediate (a) (5g), respectively. And intermediate 281-1 (3.8g, 77%) was obtained in the same manner as intermediate 1-1.

C37H25NO: calc'd : M+ 499.19 foun'd : 499.23

(2) Synthesis of compound 281

Same method as Intermediate 1-1 except that Intermediate 281-1 (3.8 g) and 2-bromo-9,9'-spirobi[fluorene] (3.2 g) are used instead of Intermediate (b) and Intermediate (a), respectively. Compound 281 (4.9g, 79%) was obtained.

C62H39NO: calc'd : M+ 813.30 foun'd : 813.33

¹ H NMR (500 MHz, CDCl ₃ ) δ= 7.92(d, 2H), 7.89(d,1 H), 7.82(d,1 H), 7.72(d,1 H), 7.59(dd, 2H), 7.49-7.40(m, 4H), 7.33-7.26(m, 4H), 7.21-7.05(m, 14H), 6.81-6.71(m, 6H), 6.62(m, 1H), 6.56(dd, 1H), 5.72(d, 1H), 5.68(t, 1H)

¹ H NMR of the compounds synthesized in Synthesis Examples 1 to 28 are shown in Tables 1 and 2 below. Those skilled in the art can easily recognize the synthetic methods for compounds other than those shown in Tables 1 and 2 by referring to the above synthetic routes and raw materials.

compound 1H NMR (400Mhz) One 8.25(d, 1H), 7.85(d, 2H), 7.80-7.75(m,2H), 7.73-7.70(m, 1H), 7.56(d, 1H), 7.53-7.21(m, 14H), 7.15- 7.09(m, 2H), 7.00(dd, 3H), 6.85(dd, 1H), 6.65(dd, 1H), 6.55(dd, 1H), 1.61(s, 6H) 2 8.22-8.20(m, 1H), 7.86(td, 1H), 7.79-7.77(m, 1H), 7.72(m,1H), 7.58(d, 1H), 7.51-7.23(m, 15H), 7.21- 7.05(m, 11H), 6.81(td, 1H), 6.73(dd, 1H), 6.65(dd, 1H), 6.53-6.48(m, 2H) 3 8.22-8.20(m, 1H), 7.90(dd, 2H), 7.87(dd, 1H), 7.79(m, 1H), 7.72(m, 1H), 7.61(d,1H), 7.54-7.12(m, 20H), 6.92(dd, 1H), 6.77-6.73(m, 3H), 6.66(dd, 1H), 6.51(dd, 1H), 5.97(q, 1H) 5 8.22-8.20(m, 1H), 7.85(m, 1H), 7.79-7.76(m, 2H), 7.71(m, 1H), 7.57(m, 1H), 7.46(dd, 1H), 7.40-7.21( m, 10H), 7.14-7.03(m, 4H), 7.01(dd,1H), 6.85(dd, 1H), 6.66(dd, 1H), 6.54(dd, 1H), 1.61(s, 6H) 6 8.22-8.20(m, 1H), 7.86(td, 1H), 7.79-7.77(m, 1H), 7.72-7.70(m, 1H), 7.58(d, 1H). 7.48-7.23(m, 12H), 7.20-7.03(m, 13H), 6.81(dd, 1H), 6.73(dd, 1H), 6.66(dd, 1H), 6.53(q, 1H), 6.51(dd, 1H) 21 7.84-7.82(m, 1H), 7.79-7.75(m, 2H), 7.73-7.70(m, 2H), 7.68-7.65(m, 1H), 7.57-7.40(m, 5H), 7.34-7.25(m) , 4H), 7.14-7.09(m, 2H), 7.03(dd, 1H), 6.85(m, 1H), 6.66(dd, 1H), 6.54(dd, 1H), 1.61(s, 6H) 37 8.22-8.20(m, 1H), 7.79(m, 1H), 7.72(m, 1H), 7.54-7.21(m, 14H), 7.08-7.02(m, 2H), 6.67-6.53(m, 3H), 6.34-6.31(m, 2H) 93 8.24-8.22(m, 1H), 8.15(m, 1H), 7.79-7.70(m, 4H), 7.67(d, 1H), 7.58-7.42(m, 8H), 7.39-7.25(m, 7H), 7.21-7.19(m, 1H), 7.14-7.09(m, 2H), 6.84(dd, 1H), 6.68(dd, 1H), 6.63-6.59(m, 2H), 6.49(m, 1H), 1.61( s, 6H) 94 8.24-8.22(m, 1H), 8.15(m, 1H), 7.86(td, 1H), 7.79-7.70(m, 3H), 7.67(d, 1H), 7.60-7.53(m, 3H),7.50- 7.25(m, 12H), 7.21-7.03(m, 12H), 6.81(td, 1H), 6.75(dd, 1H), 6.68(dd, 1H), 6.63-6.57(m, 3H), 6.44(d, 1H) 95 8.24-8.22(m, 1H), 8.15(m, 1H), 8.02-7.87(m, 3H), 7.79-7.70(m, 3H), 7.67(d, 1H), 7.60-7.53(m, 3H), 7.50-7.25(m, 14H), 7.23-7.15(m, 4H), 6.92(dd, 1H), 6.77-6.71(m, 3H), 6.68(dd, 1H), 6.63-6.57(m, 3H), 5.95(d, 1H) 101 8.24-8.22(m, 1H), 8.15(m, 1H), 7.79-7.70(m, 4H), 7.67(d, 1H), 7.58-7.52(m, 3H), 7.48-7.44(m, 1H), 7.39-7.25(m, 8H), 7.21-7.19(m, 1H), 7.14-7.03(m, 4H), 6.84(dd, 1H), 6.68(dd, 1H), 6.63-6.59(m, 2H), 6.49(m, 1H), 1.61(s, 6H) 204 7.92-7.87(m, 3H), 7.79(m, 1H), 7.72(m,1H), 7.63-7.58(m, 3H), 7.52-7.24(m,12H), 7.21-7.15(m, 3H), 6.92(dd, 1H), 6.77-6.71(m, 3H), 6.68-6.66(dd, 1H), 6.58-6.54(m, 2H), 5.95(dd, 1H)

compound 1H NMR (500Mhz) 4 8.22(m, 1H), 7.79(dd, 2H), 7.72(dd, 1H), 7.67(d, 1H), 7.54-7.14(m, 17H), 6.95(d, 1H), 6.90(dd, 1H) , 6.66(dd, 1H),. 6.54(dd, 1H), 2.19-2.08(m, 2H), 1.95-1.72(m, 6H) 8 8.22(m, 1H), 7.79(dd, 2H), 7.72(dd, 1H), 7.67(d, 1H), 7.48-7.23(m, 13H), 7.18-7.14(m, 1H), 7.09-7.04( m, 2H), 6.95(d, 1H), 6.90(dd, 1H), 6.66(dd, 1H),. 6.54(dd, 1H), 2.19-2.08(m, 2H), 1.95-1.72(m, 6H) 16 8.22(m, 1H), 7.79(dd, 2H), 7.72(dd, 1H), 7.67(d, 1H), 7.63-7.59(m, 2H), 7.57-7.23(m, 18H), 7.18(dt, 1H), 6.95(d, 1H), 6.90(dd, 1H), 6.66(dd, 1H), 6.59(dd, 1H), 2.19-2.08(m, 2H), 1.95-1.72(m, 6H) 187 7.92-7.84(m, 4H), 7.79(m, 1H), 7.72(dd, 1H), 7.61(d, 1H), 7.58(d, 1H), 7.48-7.41(m, 5H), 7.36-7.28( m, 3H), 7.21-7.06(m, 14H), 6.92(dd, 1H), 6.81-6.72(m, 5H), 6.66(dd, 1H), 6.57(d, 1H), 6.43(d, 1H) 188 7.92(dd, 4H), 7.89(dd, 2H), 7.79(td, 1H), 7.72(dd, 1H), 7.61(d, 2H), 7.48-7.41(m, 7H), 7.36-7.26(m, 3H), 7.21-7.15(m, 6H), 6.92(dd, 2H), 6.77-6.73(m, 6H), 6.68(dd, 1H), 6.43(d, 2H) 210 7.92(dd, 2H), 7.89(dd, 1H), 7.80(d, 1H), 7.72(d, 1H), 7.59-7.51(m, 5H), 7.49-7.41(m, 5H), 7.32-7.27( m, 3H), 7.21-7.14(m, 5H), 7.01(t, 1H), 6.77-6.73(m, 4H), 6.66(dd, 1H), 6.61(dd, 1H),5.47(d, 1H) 213 7.93(dd, 2H), 7.79-7.78(m, 2H), 7.72-7.59(m, 6H), 7.54-7.28(m, 15H), 7.20(t, 2H), 6.89(m, 2H), 6.75( dd, 2H), 6.68(dd, 1H), 6.56-6.54(m, 2H), 5.68(d, 1H) 219 7.93(dd, 2H), 7.79-7.67(m, 6H), 7.62(d, 1H), 7.53-7.28(m, 11H), 7.18(dt, 2H), 7.11(dd, 2H), 6.89-6.82( m, 3H), 6.75(dd, 2H), 6.68(dd, 1H), 6.50(d, 1H). 6.10(d, 1H), 1.61(s, 6H) 240 7.86(dd, 1H), 7.79-7.76(m, 2H), 7.73-7.70(m, 3H), 7.65-7.61(m, 2H), 7.55-7.28(m, 18H), 7.24-7.21(m, 2H) ), 6.70-6.65(m, 3H), 6.59(dd, 1H) 251 8.22(d, 1H), 7.82(d,1 H), 7.77(td, 1H), 7.70(dd, 1H), 7.54-7.44(m, 7H), 7.39-7.22(m, 10H), 7.11(dd , 1H), 6.96(dd, 1H), 6.57-6.47(m, 3H), 1.68(s, 6H) 253 8.22(d, 1H), 7.82(d,1 H), 7.72(d, 1H), 7.63(dd,1 H), 7.51-7.21(m, 16H), 7.14-7.07(m, 2H), 6.86( dd, 1H), 6.61-6.59(m, 1H), 6.53(dd, 1H), 6.24(td, 1H), 1.61(s, 6H) 256 8.23(d, 1H), 7.82(d, 1H), 7.72(td,1 H), 7.62(dd, 1H), 7.58-7.35(m, 3H), 7.34-7.21(m, 10H), 7.14-7.03 (m, 4H), 6.86(dd, 1H), 6.61(m, 1H), 6.53(dd,1 H), 6.24(dd, 1H, 1.61(s, 6H) 268 7.93(dd, 2H), 7.79-7.66(m, 6H). 7.62(d, 1H), 7.53-7.29(m, 11H), 7.20(dt,2 H), 7.11-7.04(m, 4H), 6.89(d,1 H), 6.87(t, 1H), 6.75( t, 1H), 6.74(d, 1H), 6.66(dd, 1H), 6.42(dd,1 H), 5.68(d,1 H), 1.52(s, 6H) 269 7.93(d, 2H), 7.82(d, 1H), 7.80(d, 1H), 7.72-7.58(m, 5H), 7.53-7.36(m, 7H), 7.33-7.05(m, 9H), 6.87- 6.84(m, 2H), 6.79(dd,1 H), 6.75(dd,2 H), 6.61(m, 1H), 6.23(d, 1H), 5.49(d, 1H), 1.61(s, 6H) 278 7.92(d, 2H), 7.89(d, 1H), 7.82(d,1 H), 7.72(d, 1H), 7.62(dd, 1H), 7.59(d,1 H), 7.48-7.41(m, 4H), 7.32-7.06(m, 10H), 6.87(d, 1H), 6.81(dd,1 H), 6.77-6.73(m, 3H), 6.61(m,1 H), 6.23(d, 1H) , 5.72(dd, 1H), 1.61(s, 6H) 281 7.92(d, 2H), 7.89(d,1 H), 7.82(d,1 H), 7.72(d,1 H), 7.59(dd, 2H), 7.49-7.40(m, 4H), 7.33-7.26 (m, 4H), 7.21-7.05(m, 14H), 6.81-6.71(m, 6H), 6.62(m, 1H), 6.56(dd, 1H), 5.72(d, 1H), 5.68(t, 1H) )

[Example] Comparative Example 1

For the anode, cut a corning 15Ω/cm ² (1200Å) ITO glass substrate into 50mm This glass substrate was cleaned by exposure to ozone and installed in a vacuum deposition apparatus.

First, as a hole injection layer, 2-TNATA, a known material, was vacuum deposited on the upper part of the substrate to form a 600Å thick layer, and then 4,4'-bis[N-(1-naphthyl), a hole transport material, was added as a hole transport compound. )-N-phenylamino]biphenyl (hereinafter referred to as NPB) was vacuum deposited to a thickness of 300 Å to form a hole transport layer.

On top of the hole transport layer, 9,10-di(naphthalen-2-yl)anthracene (hereinafter, DNA) as a known blue fluorescent host and 4,4'-bis[2-(4-), a known compound as a blue fluorescent dopant, are added. (N,N-diphenylamino)phenyl)vinyl]biphenyl (hereinafter, DPAVBi) was simultaneously deposited at a weight ratio of 98:2 to form a light emitting layer with a thickness of 300 Å.

Next, Alq ₃ was deposited to a thickness of 300 Å as an electron transport layer on top of the light emitting layer, then LiF, an alkali metal halide, was deposited to a thickness of 10 Å as an electron injection layer on top of the electron transport layer, and Al was deposited to a thickness of 3000 Å (cathode electrode). An organic light emitting device was manufactured by vacuum deposition to form a LiF/Al electrode.

Examples 1 to 28

An organic light-emitting device was manufactured in the same manner as Comparative Example 1, except that the compounds listed in Table 3 below were used instead of the NPB when forming the hole transport layer.

Comparative Example 2

An organic light-emitting device was manufactured in the same manner as Comparative Example 1, except that Compound A below was used instead of the NPB when forming the hole transport layer.

<Compound A>

Comparative Example 3

An organic light-emitting device was manufactured in the same manner as Comparative Example 1, except that Compound B below was used instead of the NPB when forming the hole transport layer.

<Compound B>

Comparative Example 4

An organic light-emitting device was manufactured in the same manner as Comparative Example 1, except that Compound C below was used instead of the NPB when forming the hole transport layer.

<Compound C>

Comparative Example 5

An organic light-emitting device was manufactured in the same manner as Comparative Example 1, except that Compound D below was used instead of the NPB when forming the hole transport layer.

<Compound D>

Comparative Example 6

An organic light-emitting device was manufactured in the same manner as Comparative Example 1, except that Compound E below was used instead of the NPB when forming the hole transport layer.

<Compound E>

Comparative Example 7

An organic light-emitting device was manufactured in the same manner as Comparative Example 1, except that Compound F below was used instead of the NPB when forming the hole transport layer.

<Compound F>

Comparative Example 8

An organic light-emitting device was manufactured in the same manner as Comparative Example 1, except that Compound G below was used instead of the NPB when forming the hole transport layer.

<Compound G>

Comparative Example 9

An organic light-emitting device was manufactured in the same manner as Comparative Example 1, except that the following compound H was used instead of the NPB when forming the hole transport layer.

<Compound H>

For the organic light emitting devices manufactured in Examples 1 to 28 and Comparative Examples 1 to 9, device performance (driving voltage, luminance, efficiency and color coordinate) when driven at a current density of 50 mA/cm ² and current density of 100 mA/cm The time until the initial luminance at ² decreases by 50% (half life) was measured and shown in Table 3 below.

- Luminance: Power was supplied from a current-voltage meter (Kethley SMU 236) and measured using a luminance meter PR650.

- Efficiency: Power was supplied from a current-voltage meter (Kethley SMU 236) and measured using a luminance meter PR650.

Hole transport material driving voltage
(V) current density
(mA/ ^cm2 ) Luminance
(cd/ ^m2 ) efficiency
(cd/A) Luminous color Half life (hr @100 mA/cm ² ) Example 1 Compound 1 4.32 50 3670 7.34 blue 362 Example 2 compound 2 4.21 50 3715 7.43 blue 353 Example 3 Compound 3 4.22 50 3665 7.33 blue 372 Example 4 Compound 4 4.85 50 3876 7.75 blue 374 Example 5 Compound 5 4.26 50 3730 7.46 blue 374 Example 6 Compound 6 4.26 50 3730 7.46 blue 374 Example 7 compound 8 4.67 50 3985 7.97 blue 356 Example 8 Compound 16 4.72 50 3451 6.90 blue 382 Example 9 Compound 21 4.25 50 3630 7.26 blue 384 Example 10 Compound 37 4.41 50 3725 7.45 blue 343 Example 11 Compound 93 4.26 50 3630 7.26 blue 366 Example 12 Compound 94 4.32 50 3670 7.34 blue 378 Example 13 Compound 95 4.45 50 3440 6.88 blue 325 Example 14 compound 101 4.60 50 3490 6.98 blue 330 Example 15 Compound 187 4.55 50 3655 7.31 blue 375 Example 16 Compound 188 4.69 50 3492 6.98 blue 356 Example 17 Compound 204 4.82 50 3540 7.08 blue 381 Example 18 Compound 210 4.96 50 3987 7.97 blue 351 Example 19 Compound 213 4.74 50 3859 7.72 blue 348 Example 20 Compound 219 4.73 50 3565 7.13 blue 316 Example 21 Compound 240 4.89 50 3529 7.06 blue 355 Example 22 Compound 251 4.82 50 3983 7.97 blue 327 Example 23 Compound 253 4.76 50 3852 7.70 blue 331 Example 24 Compound 256 4.96 50 3874 7.75 blue 326 Example 25 Compound 268 4.81 50 3721 7.44 blue 312 Example 27 Compound 269 4.53 50 3652 7.30 blue 332 Example 27 Compound 278 4.56 50 3552 7.10 blue 351 Example 28 Compound 281 4.66 50 3512 7.02 blue 366 Comparative Example 1 NPB 7.01 50 2645 5.29 blue 258 Comparative Example 2 Compound A 6.50 50 2805 5.61 blue 220 Comparative Example 3 Compound B 5.81 50 3105 6.21 blue 180 Comparative Example 4 Compound C 6.02 50 3205 6.41 blue 210 Comparative Example 5 Compound D 8.21 50 1851 3.70 blue 127 Comparative Example 6 Compound E 6.01 50 2353 5.98 blue 231 Comparative Example 7 Compound F 7.32 50 2553 5.90 blue 221 Comparative Example 8 Compound G 5.88 50 2678 5.34 blue 231 Comparative Example 9 Compound H 5.68 50 2635 5.27 blue 235

As shown in Table 3, when the compound according to one embodiment of the present invention is used as a hole transport material in an organic light-emitting device, all examples using the compound of the present invention are similar to those of Comparative Example 1 using NPB, a known material. Compared to light-emitting devices, it has excellent I-V-L characteristics with improved driving voltage and improved efficiency. In particular, it can be seen that the lifespan improvement effect is excellent, resulting in a significant improvement in lifespan. In addition, compared to Comparative Examples 2 to 9 using compounds A to H, it can be seen that the driving voltage is improved and the luminance, luminous efficiency, and half lifespan are excellent. Referring to the above synthesis examples and examples for the present invention, Although described, this is merely an example, and those skilled in the art will understand that various modifications and other equivalent embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the attached patent claims.

10, 20, 30, 40: Organic light emitting device
110: first electrode
150: Organic layer
190: second electrode
210: first capping layer
220: second capping layer

Claims (13)

Amine-based compound represented by the following formula 1A or 1B:
<Formula 1A>

<Formula 1B>

In formulas 1A and 1B,
A ₄ and A ₅ are independently selected from C ₅ -C ₃₀ carbocyclic group and C ₁ -C ₃₀ heterocyclic group,
A ₁ to A ₃ are each independently selected from a benzene group, an indene group, a naphthalene group, anthracene group, a fluorene group, a phenanthrene group, a triphenylene group, a pyrene group, a chrysene group, a naphthacene group, a pyrrole group, Imidazole group, pyrazole group, pyridine group, pyrimidine group, pyrazine group, pyridazine group, indole group, isoindole group, indazole group, quinoline group, isoquinoline group, benzoquinoline group, naphthyridine group, quinoxaline group, quinazoline group, cinoline group, carbazole group, phenanthridine group, acridine group, phenanthroline group, phenazine group, benzimidazole group, furan group, benzofuran group, thiophene group, benzoyl group. Thiophene group, thiazole group, isothiazole group, benzothiazole group, isoxazole group, oxazole group, triazole group, oxadiazole group, triazine group, benzooxazole group, dibenzofuran group, selected from the dibenzothiophene group, benzocarbazole group and dibenzocarbazole group,
X ₁ is N-(L ₁ ) _a1 -(R ₁ ) _b1 or C(R ₉ )(R ₁₀ ),
X ₂ is O or C(R ₁₁ )(R ₁₂ ),
L ₁ to L ₃ are independently 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,
a1 to a3 are independently selected from integers of 1 to 5,
R ₂ is hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, substituted or unsubstituted C ₁ -C ₆₀ alkyl group, substituted or unsubstituted C ₂ -C ₆₀ alkenyl group, substituted or unsubstituted C ₂ -C ₆₀ alkynyl group, substituted or unsubstituted C ₁ -C ₆₀ alkoxy group, substituted or unsubstituted C ₃ - C ₁₀ cycloalkyl group, substituted or unsubstituted C ₁ -C ₁₀ heterocycloalkyl group, substituted or unsubstituted C ₃ -C ₁₀ cycloalkenyl group, substituted or unsubstituted C ₁ -C ₁₀ heterocycloalkenyl group, substituted or Unsubstituted C ₆ -C ₆₀ aryl group, substituted or unsubstituted C ₆ -C ₆₀ aryloxy group, substituted or unsubstituted C ₆ -C ₆₀ arylthio group, substituted or unsubstituted monovalent non-aromatic hetero a condensed polycyclic group, selected from -Si(Q ₁ )(Q ₂ )(Q ₃ ), -B(Q ₁ )(Q ₂ ) and -C(=O)(Q ₁ );
R ₄ to R ₁₂ are independently of each other hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, substituted or Unsubstituted C ₁ -C ₆₀ alkyl group, substituted or unsubstituted C ₂ -C ₆₀ alkenyl group, substituted or unsubstituted C ₂ -C ₆₀ alkynyl group, substituted or unsubstituted C ₁ -C ₆₀ alkoxy group, substituted or unsubstituted C ₃ -C ₁₀ cycloalkyl group, substituted or unsubstituted C ₁ -C ₁₀ heterocycloalkyl group, substituted or unsubstituted C ₃ -C ₁₀ cycloalkenyl group, substituted or unsubstituted C ₁ -C ₁₀ Heterocycloalkenyl group, substituted or unsubstituted C ₆ -C ₆₀ aryl group, substituted or unsubstituted C ₆ -C ₆₀ aryloxy group, substituted or unsubstituted C ₆ -C ₆₀ arylthio group, substituted or unsubstituted C ₁ -C ₆₀ heteroaryl group, substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group, -Si(Q ₁ )(Q ₂ )( Q ₃ ), -B(Q ₁ )(Q ₂ ) and -C(=O)(Q ₁ ),
R ₁ and R ₃ are independently of each other hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, substituted or Unsubstituted C ₁ -C ₆₀ alkyl group, substituted or unsubstituted C ₂ -C ₆₀ alkenyl group, substituted or unsubstituted C ₂ -C ₆₀ alkynyl group, substituted or unsubstituted C ₁ -C ₆₀ alkoxy group, substituted or unsubstituted C ₃ -C ₁₀ cycloalkyl group, substituted or unsubstituted C ₁ -C ₁₀ heterocycloalkyl group, substituted or unsubstituted C ₃ -C ₁₀ cycloalkenyl group, substituted or unsubstituted C ₁ -C ₁₀ Heterocycloalkenyl group, substituted or unsubstituted C ₆ -C ₆₀ aryl group, substituted or unsubstituted C ₆ -C ₆₀ aryloxy group, substituted or unsubstituted C ₆ -C ₆₀ arylthio group, substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, substituted or unsubstituted monovalent non-aromatic heterocondensed polycyclic group, -Si(Q ₁ )(Q ₂ )(Q ₃ ), -B(Q ₁ )(Q ₂ ) and -C(=O)(Q ₁ ),
R ₉ and R ₁₀ and/or R ₁₁ and R ₁₂ are optionally connected to each other to form a substituted or unsubstituted C ₅ -C ₃₀ carbocyclic group and a substituted or unsubstituted C ₁ -C ₃₀ heterocyclic group. You can form groups,
b1 to b3 and b5 to b8 are independently selected from integers of 1 to 10,
b4 is selected from an integer of 1 to 3,
The substituted C ₅ -C ₆₀ carbocyclic group, substituted C ₁ -C ₆₀ heterocyclic group, substituted C ₁ -C ₆₀ alkyl group, substituted C ₂ -C ₆₀ alkenyl group, substituted C ₂ -C ₆₀ alkynyl group, substituted C ₁ -C ₆₀ alkoxy group, substituted C ₃ -C ₁₀ cycloalkyl group, substituted C ₁ -C ₁₀ heterocycloalkyl group, substituted C ₃ -C ₁₀ cycloalkenyl group, substituted C ₁ -C ₁₀ heterocycloalkenyl group, substituted C ₆ -C ₆₀ aryl group, substituted C ₆ -C ₆₀ aryloxy group, substituted C ₆ -C ₆₀ arylthio group, substituted C ₁ -C ₆₀ heteroaryl group , a substituted C ₁ -C ₆₀ heteroaryloxy group, a substituted monovalent non-aromatic condensed polycyclic group, and at least one of the substituents of the substituted monovalent non-aromatic condensed heteropolycyclic group,
Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C ₁ -C ₆₀ alkyl group, C ₂ -C ₆₀ alkenyl group , C ₂ -C ₆₀ alkynyl group and C ₁ -C ₆₀ alkoxy group;
Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C ₃ -C ₁₀ cycloalkyl group, C ₁ -C ₁₀ hetero Cycloalkyl group, C ₃ -C ₁₀ cycloalkenyl group, C ₁ -C ₁₀ heterocycloalkenyl group, C ₆ -C ₆₀ aryl group, C ₆ -C ₆₀ aryloxy group, C ₆ -C ₆₀ arylthio group, C ₁ -C ₆₀ heteroaryl group, monovalent non-aromatic condensed polycyclic group, monovalent non-aromatic condensed heteropolycyclic group, -Si(Q ₁₁ )(Q ₁₂ )(Q ₁₃ ), -B(Q ₁₁ )(Q ₁₂ ), -C(=O)(Q ₁₁ ), -S(=O) ₂ (Q ₁₁ ) and -P(=O)(Q ₁₁ )(Q ₁₂ ), C ₁ -C substituted with at least one selected from ₆₀ alkyl group, C ₂ -C ₆₀ alkenyl group, C ₂ -C ₆₀ alkynyl group and C ₁ -C ₆₀ alkoxy group;
C ₃ -C ₁₀ cycloalkyl group, C ₁ -C ₁₀ heterocycloalkyl group, C ₃ -C ₁₀ cycloalkenyl group, C ₁ -C ₁₀ heterocycloalkenyl group, C ₆ -C ₆₀ aryl group, C ₆ -C ₆₀ aryl Oxy group, C ₆ -C ₆₀ arylthio group, C ₁ -C ₆₀ heteroaryl group, monovalent non-aromatic condensed polycyclic group, monovalent non-aromatic condensed heteropolycyclic group, biphenyl group and terphenyl group;
Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C ₁ -C ₆₀ alkyl group, C ₂ -C ₆₀ alkenyl group , C ₂ -C ₆₀ alkynyl group, C ₁ -C ₆₀ alkoxy group, C ₃ -C ₁₀ cycloalkyl group, C ₁ -C ₁₀ heterocycloalkyl group, C ₃ -C ₁₀ cycloalkenyl group, C ₁ -C ₁₀ heterocyclo Alkenyl group, C ₆ -C ₆₀ aryl group, C ₆ -C ₆₀ aryloxy group, C ₆ -C ₆₀ arylthio group, C ₁ -C ₆₀ heteroaryl group, monovalent non-aromatic condensed polycyclic group, non-monovalent -aromatic heterocondensed polycyclic group, biphenyl group, terphenyl group, -Si(Q ₂₁ )(Q ₂₂ )(Q ₂₃ ), -B(Q ₂₁ )(Q ₂₂ ), -C(=O)(Q ₂₁ ), -S(=O) ₂ (Q ₂₁ ) and -P(=O)(Q ₂₁ )(Q ₂₂ ), substituted with at least one selected from C ₃ -C ₁₀ cycloalkyl group, C ₁ -C ₁₀ heterocycloalkyl group, C ₃ -C ₁₀ cycloalkenyl group, C ₁ -C ₁₀ heterocycloalkenyl group, C ₆ -C ₆₀ aryl group, C ₆ -C ₆₀ aryloxy group, C ₆ -C ₆₀ arylthio group, C ₁ -C ₆₀ heteroaryl group, monovalent non-aromatic condensed polycyclic group, monovalent non-aromatic condensed polycyclic group, biphenyl group and terphenyl group; and
-Si(Q ₃₁ )(Q ₃₂ )(Q ₃₃ ), -B(Q ₃₁ )(Q ₃₂ ), -C(=O)(Q ₃₁ ), -S(=O) ₂ (Q ₃₁ ) and - P(=O)(Q ₃₁ )(Q ₃₂ );
is selected from,
In Formula 1A, when A ₁ to A ₃ are each a benzene group and L ₃ is a single bond, X ₁ is S or N-(L ₁ ) _a1 -(R ₁ ) _b1 ,
In Formula 1B,
i) When A ₁ to A ₅ are each a benzene group and L ₂ and L ₃ are each a single bond, X ₁ is N-(L ₁ ) _a1 -(R ₁ ) _b1 and X ₂ is O,
ii) When A ₁ to A ₅ are each a benzene group and X ₂ is O, L ₂ is a single bond,
_{iii )} When A _{1 to} A _{5 are each a} benzene group _and Forms a cyclic group or a group represented by any of the following formulas 7-1 to 7-3,
_iv ) When _{A 1 to} A _{5 are each a} benzene _group and Forms a click group or a group represented by any of the following formulas 7-1 to 7-3,

In formulas 7-1 to 7-3,
Z ₅₁ and Z ₅₂ are independently of each other hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C ₁ -C ₂₀ alkyl group, C ₁ -C ₂₀ alkoxy group, cyclopentyl group, cyclohexyl group, cycloheptyl group, cyclopentenyl group, cyclohexenyl group, phenyl group, biphenyl group, naphthyl group, fluorenyl group, spiro-bi Fluorenyl group, spiro-fluorene-benzofluorenyl group, benzofluorenyl group, dibenzofluorenyl group, phenalenyl group, phenanthrenyl group, anthracenyl group, fluoranthenyl group, triphenylenyl group, pyridi Nyl group, pyrazinyl group, pyrimidinyl group, quinolinyl group, isoquinolinyl group, benzoquinolinyl group, naphthyridinyl group, quinoxalinyl group, quinazolinyl group, carbazolyl group, phenanthridinyl group, acridinyl group, phenene Is selected from trollinyl group, phenazinyl group, triazinyl group, dibenzofuranyl group, dibenzothiophenyl group and -Si(Q ₃₁ )(Q ₃₂ )(Q ₃₃ ),
n1 is selected from integers from 1 to 8,
n2 is selected from an integer from 1 to 10,
n3 and n4 are independently selected from integers of 1 to 4,
* is a carbon atom in which R ₉ and R ₁₀ or R ₁₁ and R ₁₂ are combined,
Q ₁ to Q ₃ , Q ₁₁ to Q ₁₃ , Q ₂₁ to Q ₂₃ and Q ₃₁ to Q ₃₃ are each independently selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, No group, nitro group, amidino group, hydrazino group, hydrazono group, C ₁ -C ₆₀ alkyl group, C ₂ -C ₆₀ alkenyl group, C ₂ -C ₆₀ alkynyl group, C ₁ -C ₆₀ alkoxy group, C ₃ -C ₁₀ cycloalkyl group, C ₁ -C ₁₀ heterocycloalkyl group, C ₃ -C ₁₀ cycloalkenyl group, C ₁ -C ₁₀ heterocycloalkenyl group, C ₆ -C ₆₀ aryl group, C ₁ -C ₆₀ substituted with alkyl group It is selected from a C ₆ -C ₆₀ aryl group, a C ₁ -C ₆₀ heteroaryl group, a monovalent non-aromatic condensed polycyclic group, a monovalent non-aromatic condensed heteropolycyclic group, a biphenyl group, and a terphenyl group. According to paragraph 1,
A ₄ and A ₅ are independently of each other, benzene group, indene group, naphthalene group, anthracene group, fluorene group, phenanthrene group, triphenylene group, pyrene group, chrysene group, naphthacene group, pyrrole group, Imidazole group, pyrazole group, pyridine group, pyrimidine group, pyrazine group, pyridazine group, indole group, isoindole group, indazole group, quinoline group, isoquinoline group, benzoquinoline group, naphthyridine group, quinoxaline group, quinazoline group, cinoline group, carbazole group, phenanthridine group, acridine group, phenanthroline group, phenazine group, benzimidazole group, furan group, benzofuran group, thiophene group, benzoyl group. Thiophene group, thiazole group, isothiazole group, benzothiazole group, isoxazole group, oxazole group, triazole group, oxadiazole group, triazine group, benzooxazole group, dibenzofuran group, An amine-based compound selected from the dibenzothiophene group, benzocarbazole group and dibenzocarbazole group. According to paragraph 1,
A ₁ to A ₅ are each independently an amine-based compound selected from a benzene group and a naphthalene group. According to paragraph 1,
X ₁ is N-(L ₁ ) _a1 -(R ₁ ) _b1 , and X ₂ is O or C(R ₁₁ )(R ₁₂ ); or
X ₁ is C(R ₉ )(R ₁₀ ), and X ₂ is C(R ₁₁ )(R ₁₂ ), an amine-based compound. According to paragraph 1,
L ₁ to L ₃ are independently of each other, a single bond, a benzene group, a pentalene group, an indene group, a naphthalene group, an azulene group, a hepthalene group, an indacene group, an acenaphthalene group, a fluorene group, a spiro-bi Fluorene group, benzofluorene group, phenalene group, phenanthrene group, anthracene group, fluoranthene group, triphenylene group, pyrene group, chrysene group, naphthacene group, picene group, perylene group, penta Phenylene group, hexacene group, pyrrole group, imidazole group, pyrazole group, pyridine group, pyrazine group, pyrimidine group, pyridazine group, isoindole group, indole group, indazole group, purine group, quinoline group, Isoquinoline group, benzoquinoline group, phthalazine group, naphthyridine group, quinoxaline group, quinazoline group, cinoline group, carbazole group, phenanthridine group, acridine group, phenanthroline group, phenazine group, benzimidazole group, furan group, benzofuran group, thiophene group, benzothiophene group, thiazole group, isothiazole group, benzothiazole group, isoxazole group, oxazole group, triazole group, tetrazole group, oxadiazole group, triazine group, benzooxazole group, dibenzofuran group, dibenzothiophene group, benzocarbazole group and dibenzocarbazole group; and
Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C ₁ -C ₂₀ alkyl group, C ₁ -C ₂₀ alkoxy group , C ₆ -C ₂₀ aryl group and C ₁ -C ₂₀ heteroaryl group, substituted with at least one selected from benzene group, pentalene group, indene group, naphthalene group, azulene group, hepthalene group, indacene group, acetate. Naphthalene group, fluorene group, spiro-bifluorene group, benzofluorene group, phenalene group, phenanthrene group, anthracene group, fluoranthrene group, triphenylene group, pyrene group, chrysene group, naphtha Cene group, picene group, perylene group, pentaphenylene group, hexacene group, pyrrole group, imidazole group, pyrazole group, pyridine group, pyrazine group, pyrimidine group, pyridazine group, isoindole group, indole group , indazole group, purine group, quinoline group, isoquinoline group, benzoquinoline group, phthalazine group, naphthyridine group, quinoxaline group, quinazoline group, cinnoline group, carbazole group, phenanthridine group, a Cridine group, phenanthroline group, phenazine group, benzimidazole group, furan group, benzofuran group, thiophene group, benzothiophene group, thiazole group, isothiazole group, benzothiazole group, isoxa Sol group, oxazole group, triazole group, tetrazole group, oxadiazole group, triazine group, benzooxazole group, dibenzofuran group, dibenzothiophene group, benzocarbazole group and dibenzocarbazole group. ;
An amine-based compound selected from among. According to paragraph 1,
L ₁ to L ₃ are independently of each other,
single bonds and benzene groups; and
Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C ₁ -C ₂₀ alkyl group, C ₁ -C ₂₀ alkoxy group , a benzene group substituted with at least one selected from C ₆ -C ₂₀ aryl group and C ₁ -C ₂₀ heteroaryl group;
An amine-based compound selected from among. According to paragraph 1,
R ₁ is a C ₆ -C ₆₀ aryl group, a monovalent non-aromatic condensed polycyclic group and a monovalent non-aromatic heterocondensed polycyclic group; and
Deuterium, -F, -Cl, -Br, -I, C ₁ -C ₆₀ alkyl group, C ₁ -C ₆₀ alkoxy group, C ₆ -C ₆₀ aryl group, C ₁ -C ₆₀ heteroaryl group, monovalent non- A C ₆ -C ₆₀ aryl group substituted with at least one of an aromatic condensed polycyclic group, a monovalent non-aromatic heterocondensed polycyclic group, and -Si(Q ₃₁ )(Q ₃₂ )(Q ₃₃ ), a monovalent non-aromatic condensed polycyclic group and monovalent non-aromatic heterocondensed polycyclic groups; is selected from,
R ₂ is a C ₆ -C ₆₀ aryl group and a monovalent non-aromatic heterocondensed polycyclic group; and
Deuterium, -F, -Cl, -Br, -I, C ₁ -C ₆₀ alkyl group, C ₁ -C ₆₀ alkoxy group, C ₆ -C ₆₀ aryl group, C ₁ -C ₆₀ heteroaryl group, monovalent non- A C ₆ -C ₆₀ aryl group and a monovalent non-aromatic heterocondensed polycyclic group substituted with at least one of an aromatic condensed polycyclic group, a monovalent non-aromatic condensed heteropolycyclic group, and -Si(Q ₃₁ )(Q ₃₂ )(Q ₃₃ ). ;
An amine-based compound selected from among. According to paragraph 1,
R ₁ is selected from the group represented by the following formulas 5-1 to 5-12,
R ₂ is an amine-based compound selected from the group represented by the following formulas 5-1 to 5-12:

In formulas 5-1 to 5-12,
Y ₃₁ is O, S, C(Z ₃₃ )(Z ₃₄ ), N(Z ₃₅ ) or Si(Z ₃₆ )(Z ₃₇ ),
Z ₃₁ to Z ₃₇ are each independently hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C ₁ -C ₂₀ alkyl group, C ₁ -C ₂₀ alkoxy group, cyclopentyl group, cyclohexyl group, cycloheptyl group, cyclopentenyl group, cyclohexenyl group, phenyl group, biphenyl group, naphthyl group, fluorenyl group, spiro-bi Fluorenyl group, spiro-fluorene-benzofluorenyl group, benzofluorenyl group, dibenzofluorenyl group, phenalenyl group, phenanthrenyl group, anthracenyl group, fluoranthenyl group, triphenylenyl group, pyridi Nyl group, pyrazinyl group, pyrimidinyl group, quinolinyl group, isoquinolinyl group, benzoquinolinyl group, naphthyridinyl group, quinoxalinyl group, quinazolinyl group, carbazolyl group, phenanthridinyl group, acridinyl group, phenene Is selected from trollinyl group, phenazinyl group, triazinyl group, dibenzofuranyl group, dibenzothiophenyl group and -Si(Q ₃₁ )(Q ₃₂ )(Q ₃₃ ),
Z ₃₃ and Z ₃₄ may be optionally connected to each other to form a substituted or unsubstituted C ₅ -C ₃₀ carbocyclic group and a substituted or unsubstituted C ₁ -C ₃₀ heterocyclic group,
e2 is selected from an integer of 0 to 2, and when e2 is 2 or more, 2 or more Z ₃₁ and Z ₃₂ are the same or different from each other,
e3 is selected from an integer of 0 to 3, and when e3 is 2 or more, 2 or more Z ₃₁ and Z ₃₂ are the same or different from each other,
e4 is selected from an integer of 0 to 4, and when e4 is 2 or more, 2 or more Z ₃₁ and Z ₃₂ are the same or different from each other,
e5 is selected from an integer of 0 to 5, and when e5 is 2 or more, 2 or more Z ₃₁ and Z ₃₂ are the same or different from each other,
e6 is selected from an integer of 0 to 6, and when e6 is 2 or more, 2 or more Z ₃₁ and Z ₃₂ are the same or different from each other,
e7 is selected from an integer of 0 to 7, and when e7 is 2 or more, 2 or more Z ₃₁ are the same or different from each other,
e9 is selected from an integer of 0 to 9, and when e9 is 2 or more, 2 or more Z ₃₁ are the same or different from each other,
* is a binding site with a neighboring atom. According to paragraph 1,
R ₁ is selected from the following formulas 6-1 to 6-18, 6-27 to 6-42,
R ₂ is each independently an amine-based compound selected from the following formulas 6-1 to 6-10 and 6-12 to 6-18:





In formulas 6-1 to 6-10 and 6-12 to 6-42,
“Ph” represents a phenyl group,
* is a binding site with a neighboring atom. According to paragraph 1,
R ₃ to R ₁₂ are each independently hydrogen, deuterium, -F, -Cl, -Br, -I, methyl group, ethyl group, propyl group, isopropyl group, n-butyl group, isobutyl group, sec-butyl group , an amine-based compound selected from ter-butyl group, pentyl group, iso-amyl group, hexyl group, phenyl group and biphenyl group. According to paragraph 1,
Amine-based compounds represented by any one of the following formulas 1A-1 to 1A-4 and 1B-1 to 1B-16:
<Formula 1A-1>

<Formula 1A-2>

<Formula 1A-3>

<Formula 1A-4>

<Formula 1B-1>

<Formula 1B-2>

<Formula 1B-3>

<Formula 1B-4>

<Formula 1B-5>

<Formula 1B-6>

<Formula 1B-7>

<Formula 1B-8>

<Formula 1B-9>

<Formula 1B-10>

<Formula 1B-11>

<Formula 1B-12>

<Formula 1B-13>

<Formula 1B-14>

<Formula 1B-15>

<Formula 1B-16>

In the formulas 1A-1 to 1A-4 and 1B-1 to 1B-16,
_{The definitions for X 1 ,}
b4, b6 and b8 are independently selected from integers of 1 to 3,
b3, b5 and b7 are independently selected from integers from 1 to 4,
In Formulas 1A-1 to 1A-4, when L ₃ is a single bond, X ₁ is N-(L ₁ ) _a1 -(R ₁ ) _b1 ,
In Formulas 1B-1 to 1B-16, when L ₂ and L ₃ are each a single bond, X ₁ is O, S or N-(L ₁ ) _a1 -(R ₁ ) _b1 and X ₂ is O. According to clause 11,
The L ₁ to L ₃ are independently of each other,
single bonds and benzene groups; and
Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C ₁ -C ₂₀ alkyl group, C ₁ -C ₂₀ alkoxy group , a benzene group substituted with at least one selected from C ₆ -C ₂₀ aryl group and C ₁ -C ₂₀ heteroaryl group;
An amine-based compound selected from among. According to paragraph 1,
The following compounds 3, 4, 7, 8, 11, 12, 15, 16, 19, 20, 37 to 46, 51 to 60, 65 to 74, 79 to 88, 95, 96, 99, 100, 103, 104, Amine-based compounds selected from 107, 108, 111 to 122, 127 to 136, 141 to 150, 155 to 164, 169 to 178, 197, 227 to 235, and 240 to 248: