KR102632618B1 - Organic light-emitting device - Google Patents

Abstract

An organic light emitting device is disclosed.

Description

Organic light-emitting device

Embodiments of the present invention relate to organic light emitting devices.

Organic light-emitting devices are self-emitting devices that not only have a wide viewing angle and excellent contrast, but also have a fast response time, excellent brightness, driving voltage, and response speed characteristics, and have the advantage of being multicolorable. .

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.

Embodiments of the present invention provide organic light emitting devices.

One embodiment of the present invention includes: a first electrode; It includes an organic layer including a second electrode and a light-emitting layer interposed between the first electrode and the second electrode;

The organic layer discloses an organic light-emitting device comprising a first compound represented by the following Chemical Formula 1 and a second compound represented by any one of the following Chemical Formulas 2-1 to 2-4:

<Formula 1>

<Formula A>

<Formula 2-1>

<Formula 2-2>

<Formula 2-3>

<Formula 2-4>

In Formulas 1, A, and 2-1 to 2-4,

R ₁ to R ₁₄ are each independently a group represented by the formula A, 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 Substituted 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 ), -N(Q ₁ )(Q ₂ ), -B(Q ₁ )(Q ₂ ), -C(=O)(Q ₁ ), -S (=O) ₂ (Q ₁ ) and -P(=O)(Q ₁ )(Q ₂ );

At least one of R ₁ to R ₅ , R ₇ to R ₁₂ and R ₁₄ is a group represented by Formula A;

Ar ₂₁₁ and Ar ₂₁₂ are independently selected from naphthalene, anthracene, triphenylene, pyrene, chrysene and perylene;

Ar ₂₄₁ is selected from benzene, biphenyl and triphenylene;

L ₁₀₁ , L ₂₁₁ to L ₂₁₃ , L ₂₂₁ , L ₂₃₁ to L ₂₃₄ and L ₂₄₁ are each independently a substituted or unsubstituted C ₃ -C ₁₀ cycloalkylene group, a substituted or unsubstituted C ₁ -C ₁₀ hetero Cycloalkylene 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 selected from an unsubstituted C ₁ -C ₆₀ heteroarylene group, a substituted or unsubstituted divalent non-aromatic condensed polycyclic group, and a substituted or unsubstituted divalent non-aromatic condensed heteropolycyclic group;

a101 is selected from 0, 1, 2 and 3;

a211 to a213, a221, a231 to a234, and a241 are each independently selected from 0, 1, and 2;

R ₁₀₁ , R ₁₀₂ , R ₂₃₁ to R ₂₃₄ and R ₂₄₁ 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 ₁ -C ₁₀ heterocycloalkyl group. 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, selected from a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group and a substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group;

b231 to b234 and b241 are independently selected from 1, 2, and 3;

R ₂₁₁ , R ₂₁₂ , R ₂₂₁ , R ₂₂₂ , R ₂₃₅ to R ₂₃₈ and R ₂₄₂ 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 Substituted 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 hetero Condensed polycyclic group, -Si(Q ₁ )(Q ₂ )(Q ₃ ), -N(Q ₁ )(Q ₂ ), -B(Q ₁ )(Q ₂ ), -C(=O)(Q ₁ ), -S(=O) ₂ (Q ₁ ) and -P(=O) (Q ₁ )(Q ₂ );

b211, b212, b221, b222, b235 to b238 and b242 are each independently selected from 1, 2 and 3;

n211, n212 and n221 are independently selected from 1, 2 and 3;

n231 to n234 are independently selected from 0, 1, and 2; The sum of n231 to n234 is selected from 1, 2, 3, 4, 5 and 6;

n241 is selected from 3, 4, 5, 6, 7 and 8;

Q ₁ to Q ₃ 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 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 condensed polycyclic group, monovalent non-aromatic condensed polycyclic group , biphenyl group, and terphenyl group.

The organic light emitting device can exhibit low driving voltage, high brightness, high efficiency, high color purity, and long lifespan characteristics.

Figure 1 is a cross-sectional view schematically showing the structure of an organic light-emitting device according to an embodiment.
Figure 2 is a diagram schematically showing the structure of an organic light-emitting device according to another embodiment of the present invention.
Figure 3 is a diagram schematically showing the structure of an organic light-emitting device according to another embodiment of the present invention.
Figure 4 is a diagram schematically showing the structure of an organic light-emitting device according to another embodiment of the present invention.

Since the present invention can be modified in various ways and can have various embodiments, specific embodiments 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 embodiments disclosed below and may be implemented in various forms.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying 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 examples, singular terms include plural terms unless the context clearly dictates otherwise.

In the following embodiments, terms such as include or have mean that the features or components described in the specification exist, and do not exclude in advance 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 where it is directly on top of the other part, but also when another film, region, component, etc. is interposed between them. 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.

In this specification, “(the organic layer) includes a first compound” means “(the organic layer) contains one type of first compound belonging to the category of Formula 1 above, or two or more different types of first compounds belonging to the category of Formula 1 above. It can be interpreted as “may include compounds.”

The first electrode is an anode, which is a hole injection electrode, and the second electrode is a cathode, which is an electron injection electrode, or the first electrode is a cathode, which is an electron injection electrode, and the second electrode is an anode, which is a hole injection electrode.

For example, the first electrode is an anode, the second electrode is a cathode, and the organic layer is: i) interposed between the first electrode and the light-emitting layer, and at least one of a hole injection layer, a hole transport layer, and an electron blocking layer. A hole transport region containing one; and ii) an electron transport region interposed between the light emitting layer and the second electrode and including at least one of a hole blocking layer, an electron transport layer, and an electron injection layer; may include.

As used herein, “organic layer” is a term referring to a single and/or multiple layers interposed between a first electrode and a second electrode in an organic light emitting device. The “organic layer” may include not only organic compounds but also organometallic complexes containing metals.

[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 an organic light-emitting device 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 . The substrate may be a glass substrate or a transparent plastic substrate having excellent mechanical strength, thermal stability, transparency, surface smoothness, ease of handling, and waterproofness.

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), etc. Any combination may be selected, but is not limited thereto. Alternatively, to form the first electrode 110, which is a transflective electrode or a reflective electrode, the first electrode material may be magnesium (Mg), aluminum (Al), aluminum-lithium (Al-Li), or 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 or a multi-layer structure having multiple layers. For example, the first electrode 110 may have a three-layer structure of ITO/Ag/ITO, but is not limited 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 may include a first compound represented by the following Chemical Formula 1 and a second compound represented by any one of the following Chemical Formulas 2-1 to 2-4. The first compound may include at least one group represented by the following formula (A):

<Formula 1>

<Formula A>

<Formula 2-1>

<Formula 2-2>

<Formula 2-3>

<Formula 2-4>

In Formula 1, R ₁ to R ₁₄ are each independently selected from a group represented by Formula A, 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 alkyl Nyl 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 Heterocondensed polycyclic group, -Si(Q ₁ )(Q ₂ )(Q ₃ ), -N(Q ₁ )(Q ₂ ), -B(Q ₁ )(Q ₂ ), -C(=O)(Q ₁ ), -S(=O) ₂ (Q ₁ ) and -P(=O)(Q ₁ )(Q ₂ );

At least one of R ₁ to R ₅ , R ₇ to R ₁₂ and R ₁₄ may be a group represented by Formula A;

Q ₁ to Q ₃ 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 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 condensed polycyclic group, monovalent non-aromatic condensed polycyclic group , may be selected from a biphenyl group and a terphenyl group.

For example, in Formula 1, R ₁ to R ₁₄ are each independently a group represented by Formula A, hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl group, Cyano group, nitro group, amidino group, hydrazino group, hydrazono group, carboxylic acid group, C ₁ -C ₂₀ alkyl group, C ₁ -C ₂₀ alkoxy group, cyclopentyl group and cyclohexyl group;

Phenyl group, biphenyl group, terphenyl group, naphthyl group, fluorenyl group, spiro-fluorenyl group, benzofluorenyl group, dibenzofluorenyl group, phenanthrenyl group, anthracenyl group, pyrenyl group, chrysenyl group, pyrenyl group Dinyl group, pyrazinyl group, pyrimidinyl group, pyridazinyl group, quinolinyl group, isoquinolinyl group, quinoxalinyl group, quinazolinyl group, carbazolyl group, triazinyl group;

Substituted with at least one selected from C ₁ -C ₂₀ alkyl groups, phenyl group, biphenyl group, terphenyl group, naphthyl group, fluorenyl group, spiro-fluorenyl group, benzofluorenyl group, dibenzofluorenyl group, phenanthrenyl group, Anthracenyl group, pyrenyl group, chrysenyl group, pyridinyl group, pyrazinyl group, pyrimidinyl group, pyridazinyl group, quinolinyl group, isoquinolinyl group, quinoxalinyl group, quinazolinyl group, carbazolyl group, Triazinyl group; and

-Si(Q ₁ )(Q ₂ )(Q ₃ ), -N(Q ₁ )(Q ₂ ), -B(Q ₁ )(Q ₂ ), -C(=O)(Q ₁ ), -S (=O) ₂ (Q ₁ ) and -P(=O)(Q ₁ )(Q ₂ );

Q ₁ to Q ₃ may be independently selected from a C ₁ -C ₂₀ alkyl group, a phenyl group, a biphenyl group, a terphenyl group, and a naphthyl group, but are not limited thereto.

As another example, in Formula 1, R ₁ to R ₁₄ are each independently a group represented by Formula A, 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 and cyclohexyl group;

Phenyl group, biphenyl group, terphenyl group, naphthyl group, fluorenyl group, spiro-fluorenyl group, benzofluorenyl group, dibenzofluorenyl group, phenanthrenyl group, anthracenyl group, pyrenyl group, chrysenyl group, pyrenyl group Dinyl group, pyrazinyl group, pyrimidinyl group, pyridazinyl group, quinolinyl group, isoquinolinyl group, quinoxalinyl group, quinazolinyl group, carbazolyl group and triazinyl group;

Phenyl group, biphenyl group, terphenyl group, naph substituted with at least one selected from methyl group, ethyl group, n-propyl group, iso-propyl group, n-butyl group, sec-butyl group, iso-butyl group and tert-butyl group. Tyl group, fluorenyl group, spiro-fluorenyl group, benzofluorenyl group, dibenzofluorenyl group, phenanthrenyl group, anthracenyl group, pyrenyl group, chrysenyl group, pyridinyl group, pyrazinyl group, pyrimidi Nyl group, pyridazinyl group, quinolinyl group, isoquinolinyl group, quinoxalinyl group, quinazolinyl group, carbazolyl group and triazinyl group; and

-Si(Q ₁ )(Q ₂ )(Q ₃ ), -N(Q ₁ )(Q ₂ ), -B(Q ₁ )(Q ₂ ), -C(=O)(Q ₁ ), -S (=O) ₂ (Q ₁ ) and -P(=O)(Q ₁ )(Q ₂ );

Q ₁ to Q ₃ may be independently selected from a C ₁ -C ₂₀ alkyl group, a phenyl group, a biphenyl group, a terphenyl group, and a naphthyl group, but are not limited thereto.

As another example, in Formula 1, R ₁ to R ₁₄ are each independently a group represented by Formula A, hydrogen, deuterium, -F, hydroxyl group, cyano group, methyl group, ethyl group, n -Propyl group, iso-propyl group, n-butyl group, sec-butyl group, iso-butyl group, tert-butyl group, cyclopentyl group, cyclohexyl group, phenyl group, biphenyl group, terphenyl group, fluorenyl group, methyl group It may be selected from a phenyl group substituted with a methyl group, a fluorenyl group substituted with a methyl group, and -Si(CH ₃ ) ₃ , but is not limited thereto.

As another example, in Formula 1, R ₁ , R ₂ , R ₃ , R ₄ , R ₅ , R ₇ , R ₈ , R ₉ , R ₁₀ , R ₁₁ , R ₁₂ or R ₁₄ is represented by Formula A It may be a displayed group, but is not limited thereto.

As another example, in Formula 1, R ₁ and R ₇ are each independently a group represented by Formula A;

R ₁ and R ₈ are each independently a group represented by the formula A;

R ₁ and R ₉ are each independently a group represented by the formula A;

R ₁ and R ₁₀ are each independently a group represented by the formula A;

R ₂ and R ₇ are each independently a group represented by Formula A;

R ₂ and R ₈ are each independently a group represented by the formula A;

R ₂ and R ₉ are each independently a group represented by the formula A;

R ₂ and R ₁₀ are each independently a group represented by Formula A;

R ₃ and R ₇ are each independently a group represented by the formula A;

R ₃ and R ₈ are each independently a group represented by the formula A;

R ₃ and R ₉ are each independently a group represented by the formula A;

R ₃ and R ₁₀ are each independently a group represented by the formula A;

R ₄ and R ₇ are each independently a group represented by the formula A;

R ₄ and R ₈ are each independently a group represented by the formula A;

R ₄ and R ₉ are each independently a group represented by the formula A;

R ₄ and R ₁₀ may each independently be a group represented by Formula A, but are not limited thereto.

As another example, in Formula 1, R ₂ and R ₈ may each independently be a group represented by Formula A, but is not limited thereto.

In Formula A, L ₁₀₁ is 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 cycloalkenyl. Len 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 It may be selected from a divalent non-aromatic condensed polycyclic group and a substituted or unsubstituted divalent non-aromatic heterocondensed polycyclic group.

For example, in Chemical Formula A, L ₁₀₁ represents a phenylene group, a pentalenylene group, an indenylene group, a naphthylene group, an azulenylene group, or hep. Heptalenylene group, indacenylene group, acenaphthylene group, fluorenylene group, spiro-fluorenylene group, benzofluorenylene group, dibenzofluorenyl Len group, phenalenylene group, phenanthrenylene group, anthracenylene group, fluoranthenylene group, triphenylenylene group, pyrenylene group, chrysenylene group, naphthacenylene group, picenylene group, perylenylene group, pentaphenylene group, hexacenylene group, Pentacenylene group, rubicenylene group, coronenylene group, ovalenylene group, pyrrolylene group, thiophenylene group, furanylene ( furanylene group, imidazolylene group, pyrazolylene group, thiazolylene group, isothiazolylene group, oxazolylene group, isoxazolylene group ) group, pyridinylene group, pyrazinylene group, pyrimidinylene group, pyridazinylene group, isoindolylene group, indolylene group , indazolylene group, purinylene group, quinolinylene group, isoquinolinylene group, benzoquinolinylene group, phthalazinylene group. , naphthyridinylene group, quinoxalinylene group, quinazolinylene group, cinnolinylene group, carbazolilene group, phenanthridinylene group, Acridinylene group, phenanthrolinylene group, phenazinylene group, benzoimidazolylene group, benzofuranylene group, benzothiophenylene group, Isobenzothiazolylene group, benzoxazolylene group, isobenzooxazolylene group, triazolylene group, tetrazolylene group, oxadiazolylene ( oxadiazolylene group, triazinylene group, dibenzofuranylene group, dibenzothiophenylene group, benzocarbazolylene group and dibenzocarbazolylene 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, pentalenyl group, indenyl group, naphthyl group, azulenyl group, hepthalenyl group, indacenyl group. group, acenaphthyl group, fluorenyl group, spiro-fluorenyl 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, pyrrolyl group, thiophenyl group, pura Nyl group, imidazolyl group, pyrazolyl group, thiazolyl group, isothiazolyl group, oxazolyl group, isoxazolyl group, pyridinyl group, pyrazinyl group, pyrimidinyl group, pyridazinyl group, isoindoleyl group, indolyl group , indazolyl group, purinyl group, quinolinyl group, isoquinolinyl group, benzoquinolinyl group, phthalazinyl group, naphthyridinyl group, quinoxalinyl group, quinazolinyl group, cynolinyl group, carbazolyl group, phenanthridide Nyl group, acridinyl group, phenanthrolinyl group, phenazinyl group, benzoimidazolyl group, benzofuranyl group, benzothiophenyl group, isobenzothiazolyl group, benzoxazolyl group, isobenzooxazolyl group, triazolyl group, tetrazole Phenyl substituted with at least one selected from diary group, oxadiazolyl group, triazinyl group, dibenzofuranyl group, dibenzothiophenyl group, benzocarbazolyl group, dibenzocarbazolyl group, thiadiazolyl group and imidazopyridinyl group. Len group, pentalenylene group, indenylene group, naphthylene group, azulenylene group, hepthalenylene group, indacenylene group, acenaphthylene group, fluorenylene group, spiro-fluorenylene group, benzofluorenylene group , dibenzofluorenylene group, phenalenylene group, phenanthrenylene group, anthracenylene group, fluoranthenylene group, triphenylenylene group, pyrenylene group, chrysenylene group, naphthacenylene group, picenylene group, perylenyl Len group, pentaphenylene group, hexacenylene group, pentacenylene group, rubisenylene group, coronenylene group, ovalenylene group, pyrrolylene group, thiophenylene group, furanylene group, imidazolylene group, pyrazonylene group, thia Zolylene group, isothiazolylene group, oxazonylene group, isoxazonylene group, pyridinylene group, pyrazinylene group, pyrimidinylene group, pyridazinylene group, isoindolylene group, indolelylene group, indazolylene group, purinyl Renal group, quinolinylene group, isoquinolinylene group, benzoquinolinylene group, phthalazinylene group, naphthyridinylene group, quinoxalinylene group, quinazolinylene group, cynolinylene group, carbazoylene group, phenanthri Dinylene group, acridinylene group, phenanthrolinylene group, phenazynylene group, benzoimidazolylene group, benzofuranylene group, benzothiophenylene group, isobenzothiazonylene group, benzoxazolylene group, isobenzooxazolylene group, triazonylene group, tetrazolylene group, oxadiazolylene group, triazinylene group, dibenzofuranylene group, dibenzothiophenylene group, benzocarbazolylene group and dibenzocarbazolylene group; It may be selected from among, but is not limited to.

As another example, in Formula 1, L ₁₀₁ represents a phenylene group, a naphthylene group, a fluorenylene group, a phenanthrenylene group, an anthracenylene group, a triphenylenylene group, a pyrrolylene group, a thiophenylene group, a furanylene group, Pyridinylene group, pyrazinylene group, pyrimidinylene group, indolylene group, quinolinenylene group, isoquinolinylene group, benzoquinolinylene group, naphthyridinylene group, quinoxalinylene group, quinazolinylene group, nolinylene group, carbazyolylene group, phenanthridinylene group, benzoimidazolylene group, benzofuranylene group, benzothiophenylene group, triazonylene group, dibenzofuranylene group and dibenzothiophenylene group; and

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, fluorenyl group, spiro-fluorenyl group, benzofluorenyl group, dibenzofluorenyl group, phenanthrenyl group, anthracenyl group, pyrenyl group, chrysenyl group Substituted with at least one selected from group, pyridinyl group, pyrazinyl group, pyrimidinyl group, pyridazinyl group, quinolinyl group, isoquinolinyl group, quinoxalinyl group, quinazolinyl group, carbazolyl group and triazinyl group, Phenylene group, naphthylene group, fluorenylene group, phenanthrenylene group, anthracenylene group, triphenylenylene group, pyrrolylene group, thiophenylene group, furanylene group, pyridinylene group, pyrazinylene group, pyrimidinylene group , indolynylene group, quinolinylene group, isoquinolinylene group, benzoquinolinylene group, naphthyridinylene group, quinoxalinylene group, quinazolinylene group, cynolinylene group, carbazolinylene group, phenanthridinylene group. , benzoimidazolylene group, benzofuranylene group, benzothiophenylene group, triazonylene group, dibenzofuranylene group and dibenzothiophenylene group; It may be selected from among, but is not limited to.

As another example, in Formula A, L ₁₀₁ may be represented by any one of the following Formulas 3-1 to 3-31, but is not limited thereto:

In formulas 3-1 to 3-31,

Y ₃₁ is selected from C(R ₃₃ )(R ₃₄ ), N(R ₃₃ ), O and S;

R ₃₁ to R ₃₄ 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, fluorenyl group, spiro-fluorenyl group, benzofluorenyl group, dibenzofluorenyl group, phenanthrenyl group, Anthracenyl group, pyrenyl group, chrysenyl group, pyridinyl group, pyrazinyl group, pyrimidinyl group, pyridazinyl group, quinolinyl group, isoquinolinyl group, quinoxalinyl group, quinazolinyl group, carbazolyl group and is selected from triazinyl group;

a31 is selected from 1, 2, 3 and 4;

a32 is selected from 1, 2, 3, 4, 5 and 6;

a33 is selected from 1, 2, 3, 4, 5, 6, 7 and 8;

a34 is selected from 1, 2, 3, 4 and 5;

a35 is selected from 1, 2 and 3;

* and *' are, independently of each other, binding sites with neighboring atoms.

For example, in Formulas 3-1 to 3-31, Y ₃₁ may be selected from C(R ₃₃ )(R ₃₄ ), N(R ₃₃ ), O, and S;

R ₃₁ to R ₃₄ are independently of each other hydrogen, deuterium, -F, -Cl, -Br, -I, methyl group, ethyl group, tert-butyl group, methoxy group, ethoxy group, tert-butoxy group, phenyl group, naphthyl group , fluorenyl group, spiro-fluorenyl group, benzofluorenyl group, dibenzofluorenyl group, phenanthrenyl group, anthracenyl group, pyrenyl group, chrysenyl group, pyridinyl group, pyrazinyl group, pyrimidinyl group. , pyridazinyl group, quinolinyl group, isoquinolinyl group, quinoxalinyl group, quinazolinyl group, carbazolyl group, and triazinyl group, but is not limited thereto.

As another example, in Formula A, L ₁₀₁ may be represented by any one of the following Formulas 4-1 to 4-56, but is not limited thereto:

In formulas 4-1 to 4-56,

* and *' are, independently of each other, binding sites with neighboring atoms.

As another example, in Formula A, L ₁₀₁ may be selected from 4-1 to 4-12 and 4-39 to 4-56, but is not limited thereto.

In Formula A, a101 refers to the number of L ₁₀₁ and may be selected from 0, 1, 2, and 3. If a101 is 0 (L ₁₀₁ ), _a101 means a single bond. When a101 is 2 or more, a plurality of L ₁₀₁ may be the same or different from each other. For example, in Formula A, a101 may be selected from 0 and 1, but is not limited thereto. As another example, in Formula A, a101 may be 0, but is not limited thereto.

In Formula A, R ₁₀₁ and R ₁₀₂ 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 ₁ -C ₆₀ heteroaryl group, substituted or It may be selected from an unsubstituted monovalent non-aromatic condensed polycyclic group and a substituted or unsubstituted monovalent non-aromatic heterocondensed polycyclic group.

For example, in Formula A, R ₁₀₁ and R ₁₀₂ are each independently selected from phenyl group, biphenyl group, terphenyl group, pentalenyl group, indenyl group, naphthyl group, azulenyl group, hepthalenyl group, indacenyl group, acetate Naphthyl group, fluorenyl group, spiro-fluorenyl 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, pyrrolyl group, thiophenyl group, furanyl group, Dazolyl group, pyrazolyl group, thiazolyl group, isothiazolyl group, oxazolyl group, isoxazolyl group, pyridinyl group, pyrazinyl group, pyrimidinyl group, pyridazinyl group, isoindoleyl group, indolyl group, indazole Diary group, purinyl group, quinolinyl group, isoquinolinyl group, carbazolyl group, benzoquinolinyl group, phthalazinyl group, naphthyridinyl group, quinoxalinyl group, benzoquinoxalinyl group, quinazolinyl group, benzoquinazolinyl group, Cinolinyl group, phenanthridinyl group, acridinyl group, phenanthrolinyl group, phenazinyl group, benzimidazolyl group, benzofuranyl group, benzothiophenyl group, isobenzothiazolyl group, benzoxazolyl group, isobenzooxazolyl group , triazolyl group, tetrazolyl group, oxadiazolyl group, triazinyl group, dibenzofuranyl group, dibenzothiophenyl group, dibenzosilolyl group, benzocarbazolyl group, dibenzocarbazolyl group, thiadiazolyl group, already polyzopyridinyl group and imidazopyrimidinyl 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, pentalenyl group, indenyl group, naphthyl group, azulenyl group, heptalenyl group, indacenyl group, acenaphthyl group, fluorenyl group, spiro-fluorenyl 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, penta Phenyl group, hexacenyl group, pentacenyl group, rubisenyl group, coronenyl group, ovalenyl group, pyrrolyl group, thiophenyl group, furanyl group, imidazolyl group, pyrazolyl group, thiazolyl group, isothiazolyl group, oxazole Diary group, isoxazolyl group, pyridinyl group, pyrazinyl group, pyrimidinyl group, pyridazinyl group, isoindolyl group, indolyl group, indazolyl group, purinyl group, quinolinyl group, isoquinolinyl group, carbazolyl group, Benzoquinolinyl group, phthalazinyl group, naphthyridinyl group, quinoxalinyl group, benzoquinoxalinyl group, quinazolinyl group, benzoquinazolinyl group, cynolinyl group, phenanthridinyl group, acridinyl group, phenanthrolinyl group, phena Zinyl group, benzimidazolyl group, benzofuranyl group, benzothiophenyl group, isobenzothiazolyl group, benzooxazolyl group, isobenzooxazolyl group, triazolyl group, tetrazolyl group, oxadiazolyl group, triazinyl group, Dibenzofuranyl group, dibenzothiophenyl group, dibenzosilolyl group, benzocarbazolyl group, dibenzocarbazolyl group, thiadiazolyl group, imidazopyridinyl group, imidazopyrimidinyl group, -Si(Q ₃₁ )( Q ₃₂ ) (Q ₃₃ ), -N (Q ₃₁ ) (Q ₃₂ ) and -B (Q ₃₁ ) (Q ₃₂ ), substituted with at least one selected from phenyl group, biphenyl group, terphenyl group, pentalenyl group, indenyl group , naphthyl group, azulenyl group, hepthalenyl group, indacenyl group, acenaphthyl group, fluorenyl group, spiro-fluorenyl 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, co Ronenyl group, ovalenyl group, pyrrolyl group, thiophenyl group, furanyl group, imidazolyl group, pyrazolyl group, thiazolyl group, isothiazolyl group, oxazolyl group, isoxazolyl group, pyridinyl group, pyrazinyl group, pyrazolyl group Midinyl group, pyridazinyl group, isoindoleyl group, indolyl group, indazolyl group, purinyl group, quinolinyl group, isoquinolinyl group, carbazolyl group, benzoquinolinyl group, phthalazinyl group, naphthyridinyl group, quinoc Salinyl group, benzoquinoxalinyl group, quinazolinyl group, benzoquinazolinyl group, cynolinyl group, phenanthridinyl group, acridinyl group, phenanthrolinyl group, phenazinyl group, benzimidazolyl group, benzofuranyl group, benzothiophenyl group , isobenzothiazolyl group, benzoxazolyl group, isobenzooxazolyl group, triazolyl group, tetrazolyl group, oxadiazolyl group, triazinyl group, dibenzofuranyl group, dibenzothiophenyl group, dibenzosilolyl group, Benzocarbazolyl group, dibenzocarbazolyl group, thiadiazolyl group, imidazopyridinyl group and imidazopyrimidinyl group; and

Deuterium, -F, -Cl, -Br, -I, substituted with at least one selected from cyano group and nitro group, substituted with C ₁ -C ₂₀ alkyl group, phenyl group, biphenyl group, terphenyl group, pentalenyl group, indenyl group , naphthyl group, azulenyl group, hepthalenyl group, indacenyl group, acenaphthyl group, fluorenyl group, spiro-fluorenyl 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, co Ronenyl group, ovalenyl group, pyrrolyl group, thiophenyl group, furanyl group, imidazolyl group, pyrazolyl group, thiazolyl group, isothiazolyl group, oxazolyl group, isoxazolyl group, pyridinyl group, pyrazinyl group, pyrazolyl group Midinyl group, pyridazinyl group, isoindoleyl group, indolyl group, indazolyl group, purinyl group, quinolinyl group, isoquinolinyl group, carbazolyl group, benzoquinolinyl group, phthalazinyl group, naphthyridinyl group, quinoc Salinyl group, benzoquinoxalinyl group, quinazolinyl group, benzoquinazolinyl group, cynolinyl group, phenanthridinyl group, acridinyl group, phenanthrolinyl group, phenazinyl group, benzimidazolyl group, benzofuranyl group, benzothiophenyl group , isobenzothiazolyl group, benzoxazolyl group, isobenzooxazolyl group, triazolyl group, tetrazolyl group, oxadiazolyl group, triazinyl group, dibenzofuranyl group, dibenzothiophenyl group, dibenzosilolyl group, Benzocarbazolyl group, dibenzocarbazolyl group, thiadiazolyl group, imidazopyridinyl group and imidazopyrimidinyl group; may be selected from;

Q ₃₁ to Q ₃₃ may be independently selected from a C ₁ -C ₂₀ alkyl group, a C ₆ -C ₆₀ aryl group, a biphenyl group, and a terphenyl group, but are not limited thereto.

As another example, in Formula A, R ₁₀₁ and R ₁₀₂ are each independently selected from a phenyl group, a biphenyl group, a terphenyl group, a naphthyl group, a fluorenyl group, a phenanthrenyl group, an anthracenyl group, a triphenylenyl group, a pyrrolyl group, Thiophenyl group, furanyl group, pyridinyl group, pyrazinyl group, pyrimidinyl group, quinolinyl group, isoquinolinyl group, carbazolyl group, naphthyridinyl group, quinoxalinyl group, quinazolinyl group, cinolinyl group, phenanthridide Nyl group, acridinyl group, phenanthrolinyl group, phenazinyl group, benzofuranyl group, benzothiophenyl group, triazinyl group, dibenzofuranyl group, dibenzothiophenyl group and dibenzosilolyl group;

Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C ₁ -C ₂₀ alkyl group, C ₁ -C ₂₀ alkoxy group , phenyl group, biphenyl group, terphenyl group, naphthyl group, fluorenyl group, phenanthrenyl group, anthracenyl group, triphenylenyl group, pyrrolyl group, thiophenyl group, furanyl group, pyridinyl group, pyrazinyl group, pyrimidinyl group, Quinolinyl group, isoquinolinyl group, carbazolyl group, naphthyridinyl group, quinoxalinyl group, quinazolinyl group, cynolinyl group, phenanthridinyl group, acridinyl group, phenanthrolinyl group, phenazinyl group, benzofuranyl group, Substituted with at least one selected from benzothiophenyl group, triazinyl group, dibenzofuranyl group, dibenzothiophenyl group, dibenzosilolyl group and -Si (Q ₃₁ ) (Q ₃₂ ) (Q ₃₃ ), phenyl group, biphenyl group, ter Phenyl group, naphthyl group, fluorenyl group, phenanthrenyl group, anthracenyl group, triphenylenyl group, pyrrolyl group, thiophenyl group, furanyl group, pyridinyl group, pyrazinyl group, pyrimidinyl group, quinolinyl group, isoquinoli Nyl group, carbazolyl group, naphthyridinyl group, quinoxalinyl group, quinazolinyl group, cinolinyl group, phenanthridinyl group, acridinyl group, phenanthrolinyl group, phenazinyl group, benzofuranyl group, benzothiophenyl group, triazinyl group , dibenzofuranyl group, dibenzothiophenyl group and dibenzosilolyl group; and

Deuterium, -F, -Cl, -Br, -I, substituted with at least one selected from cyano group and nitro group, substituted with at least one selected from C ₁ -C ₂₀ alkyl group, phenyl group, biphenyl group, terphenyl group, naphthyl group, Fluorenyl group, phenanthrenyl group, anthracenyl group, triphenylenyl group, pyrrolyl group, thiophenyl group, furanyl group, pyridinyl group, pyrazinyl group, pyrimidinyl group, quinolinyl group, isoquinolinyl group, carbazolyl group , naphthyridinyl group, quinoxalinyl group, quinazolinyl group, cynolinyl group, phenanthridinyl group, acridinyl group, phenanthrolinyl group, phenazinyl group, benzofuranyl group, benzothiophenyl group, triazinyl group, dibenzofuranyl group. , dibenzothiophenyl group and dibenzosilolyl group; may be selected from;

Q ₃₁ to Q ₃₃ may be independently selected from a C ₁ -C ₂₀ alkyl group, a C ₆ -C ₆₀ aryl group, a biphenyl group, and a terphenyl group, but are not limited thereto.

As another example, in Formula A, R ₁₀₁ and R ₁₀₂ are each independently selected from a phenyl group, a biphenyl group, a terphenyl group, a naphthyl group, a fluorenyl group, a phenanthrenyl group, a pyridinyl group, a pyrazinyl group, and a pyrimidinyl group. , quinolinyl group, isoquinolinyl group, naphthyridinyl group, quinoxalinyl group, quinazolinyl group, cynolinyl group, triazinyl group, dibenzofuranyl group, dibenzothiophenyl group and dibenzosilolyl 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, -CD ₃ , -CF ₃ , C ₁ -C ₂₀ Alkoxy group, phenyl group, biphenyl group, terphenyl group, naphthyl group, fluorenyl group, phenanthrenyl group, pyridinyl group, pyrazinyl group, pyrimidinyl group, quinolinyl group, isoquinolinyl group, naphthy selected from lidinyl group, quinoxalinyl group, quinazolinyl group, cynolinyl group, triazinyl group, dibenzofuranyl group, dibenzothiophenyl group, dibenzosilolyl group and -Si (Q ₃₁ ) (Q ₃₂ ) (Q ₃₃ ) Substituted with at least one phenyl group, biphenyl group, terphenyl group, naphthyl group, fluorenyl group, phenanthrenyl group, pyridinyl group, pyrazinyl group, pyrimidinyl group, quinolinyl group, isoquinolinyl group, naphthyridinyl group, quinoc Salinyl group, quinazolinyl group, cynolinyl group, triazinyl group, dibenzofuranyl group, dibenzothiophenyl group and dibenzosilolyl group; may be selected from;

Q ₃₁ to Q ₃₃ are each independently a methyl group, an ethyl group, a tert-butyl group, a phenyl group, a biphenyl group, a terphenyl group, and a naphthyl group; It may be selected from among, but is not limited to.

As another example, in Formula A, R ₁₀₁ and R ₁₀₂ may be independently selected from the following Formulas 5-1 to 5-32, but are not limited thereto:

In formulas 5-1 to 5-32,

Y ₅₁ is selected from C(R ₅₃ )(R ₅₄ ), Si(R ₅₃ )(R ₅₄ ), N(R ₅₃ ), O and S;

R ₅₁ to R ₅₄ 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, -CD ₃ , -CF ₃ , C ₁ -C ₂₀ alkoxy group, phenyl group, biphenyl group, terphenyl group, naphthyl group, fluorenyl group, phenanthrenyl group, pyridinyl group, pyrazinyl group, pyrimidi Nyl group, quinolinyl group, isoquinolinyl group, naphthyridinyl group, quinoxalinyl group, quinazolinyl group, cynolinyl group, triazinyl group, dibenzofuranyl group, dibenzothiophenyl group, dibenzosilolyl group and -Si(Q ₃₁ )(Q ₃₂ )(Q ₃₃ ); is selected from;

Q ₃₁ to Q ₃₃ are each independently a methyl group, an ethyl group, a tert-butyl group, a phenyl group, a biphenyl group, a terphenyl group, and a naphthyl group; is selected from;

a51 is selected from 1, 2, 3, 4 and 5;

a52 is selected from 1, 2, 3, 4, 5, 6 and 7;

a53 is selected from 1, 2, 3, 4, 5 and 6;

a54 is selected from 1, 2 and 3;

a55 is selected from 1, 2, 3 and 4;

* is a bonding site with a neighboring atom.

As another example, in Formula A, R ₁₀₁ and R ₁₀₂ may be independently selected from the following Formulas 6-1 to 6-195, but are not limited thereto:

In formulas 6-1 to 6-195,

t-Bu is a tert-butyl group;

Ph is a phenyl group;

* is a bonding site with a neighboring atom.

For example, the first compound represented by Formula 1 may be represented by the following Formula 1-1, but is not limited thereto:

<Formula 1-1>

In Formula 1-1,

R ₂ and R ₈ are each independently a group represented by the above formula (A).

As another example, the first compound represented by Formula 1 may be selected from the following compounds 1 to 112, but is not limited thereto:

In Formula 2-1, Ar ₂₁₁ and Ar ₂₁₂ may be independently selected from naphthalene, anthracene, triphenylene, pyrene, chrysene, and perylene.

For example, in Formula 2-1, Ar ₂₁₁ is selected from anthracene, triphenylene, pyrene, chrysene and perylene;

Ar ₂₁₂ may be selected from naphthalene, anthracene, triphenylene, pyrene, chrysene, and perylene, but is not limited thereto.

As another example, in Formula 2-1, Ar ₂₁₁ and Ar ₂₁₂ may be independently selected from anthracene, triphenylene, pyrene, chrysene, and perylene, but are not limited thereto.

As another example, in Formula 2-1, Ar ₂₁₁ and Ar ₂₁₂ may be the same, but are not limited thereto.

As another example, in Formula 2-1, Ar ₂₁₁ and Ar ₂₁₂ may be anthracene, but are not limited thereto.

In Formula 2-4, Ar ₂₄₁ may be selected from benzene, biphenyl, and triphenylene.

In Formulas 2-1 to 2-4, L ₂₁₁ to L ₂₁₃ , L ₂₂₁ , L ₂₃₁ to L ₂₃₄ and L ₂₄₁ are independent of each other, refer to the description of L ₁₀₁ .

In Formulas 2-1 to 2-4, a211 to a213, a221, a231 to a234, and a241 may be independently selected from 0, 1, and 2. For example, in Formulas 2-1 to 2-4, a211 to a213, a221, a231 to a234, and a241 may be independently selected from 0 and 1, but are not limited thereto.

In Formulas 2-3 and 2-4, R ₂₃₁ to R ₂₃₄ and R ₂₄₁ are independent of each other, refer to the description for R ₁₀₁ .

For example, in Formulas 2-3 and 2-4, R ₂₃₁ to R ₂₃₄ and R ₂₄₁ 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, Heptalenyl group, indacenyl group, acenaphthyl group, fluorenyl group, spiro-fluorenyl 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, pyrrole Diary group, thiophenyl group, furanyl group, imidazolyl group, pyrazolyl group, thiazolyl group, isothiazolyl group, oxazolyl group, isoxazolyl group, pyridinyl group, pyrazinyl group, pyrimidinyl group, pyridazinyl group, Isoindoleyl group, indolyl group, indazolyl group, purinyl group, quinolinyl group, isoquinolinyl group, carbazolyl group, benzoquinolinyl group, phthalazinyl group, naphthyridinyl group, quinoxalinyl group, benzoquinoxalinyl group, Quinazolinyl group, benzoquinazolinyl group, cinolinyl group, phenanthridinyl group, acridinyl group, phenanthrolinyl group, phenazinyl group, benzimidazolyl group, benzofuranyl group, benzothiophenyl group, isobenzothiazolyl group, benzoyl group Oxazolyl group, isobenzooxazolyl group, triazolyl group, tetrazolyl group, oxadiazolyl group, triazinyl group, dibenzofuranyl group, dibenzothiophenyl group, dibenzosilolyl group, benzocarbazolyl group, dibenzocarba Azolyl group, thiadiazolyl group, imidazopyridinyl group and imidazopyrimidinyl 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, pentalenyl group, indenyl group, naphthyl group, azulenyl group, heptalenyl group, indacenyl group, acenaphthyl group, fluorenyl group, spiro-fluorenyl 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, penta Phenyl group, hexacenyl group, pentacenyl group, rubisenyl group, coronenyl group, ovalenyl group, pyrrolyl group, thiophenyl group, furanyl group, imidazolyl group, pyrazolyl group, thiazolyl group, isothiazolyl group, oxazole Diary group, isoxazolyl group, pyridinyl group, pyrazinyl group, pyrimidinyl group, pyridazinyl group, isoindolyl group, indolyl group, indazolyl group, purinyl group, quinolinyl group, isoquinolinyl group, carbazolyl group, Benzoquinolinyl group, phthalazinyl group, naphthyridinyl group, quinoxalinyl group, benzoquinoxalinyl group, quinazolinyl group, benzoquinazolinyl group, cynolinyl group, phenanthridinyl group, acridinyl group, phenanthrolinyl group, phena Zinyl group, benzimidazolyl group, benzofuranyl group, benzothiophenyl group, isobenzothiazolyl group, benzooxazolyl group, isobenzooxazolyl group, triazolyl group, tetrazolyl group, oxadiazolyl group, triazinyl group, Dibenzofuranyl group, dibenzothiophenyl group, dibenzosilolyl group, benzocarbazolyl group, dibenzocarbazolyl group, thiadiazolyl group, imidazopyridinyl group, imidazopyrimidinyl group, -Si(Q ₃₁ )( Q ₃₂ ) (Q ₃₃ ), -N (Q ₃₁ ) (Q ₃₂ ) and -B (Q ₃₁ ) (Q ₃₂ ), substituted with at least one selected from phenyl group, biphenyl group, terphenyl group, pentalenyl group, indenyl group , naphthyl group, azulenyl group, hepthalenyl group, indacenyl group, acenaphthyl group, fluorenyl group, spiro-fluorenyl 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, co Ronenyl group, ovalenyl group, pyrrolyl group, thiophenyl group, furanyl group, imidazolyl group, pyrazolyl group, thiazolyl group, isothiazolyl group, oxazolyl group, isoxazolyl group, pyridinyl group, pyrazinyl group, pyrazolyl group Midinyl group, pyridazinyl group, isoindoleyl group, indolyl group, indazolyl group, purinyl group, quinolinyl group, isoquinolinyl group, carbazolyl group, benzoquinolinyl group, phthalazinyl group, naphthyridinyl group, quinoc Salinyl group, benzoquinoxalinyl group, quinazolinyl group, benzoquinazolinyl group, cynolinyl group, phenanthridinyl group, acridinyl group, phenanthrolinyl group, phenazinyl group, benzimidazolyl group, benzofuranyl group, benzothiophenyl group , isobenzothiazolyl group, benzoxazolyl group, isobenzooxazolyl group, triazolyl group, tetrazolyl group, oxadiazolyl group, triazinyl group, dibenzofuranyl group, dibenzothiophenyl group, dibenzosilolyl group, Benzocarbazolyl group, dibenzocarbazolyl group, thiadiazolyl group, imidazopyridinyl group and imidazopyrimidinyl group; and

Deuterium, -F, -Cl, -Br, -I, substituted with at least one selected from cyano group and nitro group, substituted with C ₁ -C ₂₀ alkyl group, phenyl group, biphenyl group, terphenyl group, pentalenyl group, indenyl group , naphthyl group, azulenyl group, hepthalenyl group, indacenyl group, acenaphthyl group, fluorenyl group, spiro-fluorenyl 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, co Ronenyl group, ovalenyl group, pyrrolyl group, thiophenyl group, furanyl group, imidazolyl group, pyrazolyl group, thiazolyl group, isothiazolyl group, oxazolyl group, isoxazolyl group, pyridinyl group, pyrazinyl group, pyrazolyl group Midinyl group, pyridazinyl group, isoindoleyl group, indolyl group, indazolyl group, purinyl group, quinolinyl group, isoquinolinyl group, carbazolyl group, benzoquinolinyl group, phthalazinyl group, naphthyridinyl group, quinoc Salinyl group, benzoquinoxalinyl group, quinazolinyl group, benzoquinazolinyl group, cynolinyl group, phenanthridinyl group, acridinyl group, phenanthrolinyl group, phenazinyl group, benzimidazolyl group, benzofuranyl group, benzothiophenyl group , isobenzothiazolyl group, benzoxazolyl group, isobenzooxazolyl group, triazolyl group, tetrazolyl group, oxadiazolyl group, triazinyl group, dibenzofuranyl group, dibenzothiophenyl group, dibenzosilolyl group, Benzocarbazolyl group, dibenzocarbazolyl group, thiadiazolyl group, imidazopyridinyl group and imidazopyrimidinyl group; may be selected from;

Q ₃₁ to Q ₃₃ may be independently selected from a C ₁ -C ₂₀ alkyl group, a C ₆ -C ₆₀ aryl group, a biphenyl group, and a terphenyl group, but are not limited thereto.

As another example, in Formulas 2-3 and 2-4, R ₂₃₁ to R ₂₃₄ and R ₂₄₁ are each independently selected from a phenyl group, a biphenyl group, a terphenyl group, a naphthyl group, a fluorenyl group, a benzofluorenyl group, and a dibenzo group. fluorenyl group, phenalenyl group, phenanthrenyl group, anthracenyl group, triphenylenyl group, pyrenyl group, chrysenyl 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 , phenyl group, biphenyl group, terphenyl group, naphthyl group, fluorenyl group, benzofluorenyl group, dibenzofluorenyl group, phenalenyl group, phenanthrenyl group, anthracenyl group, substituted with at least one selected from phenyl group and naphthyl group, triphenylenyl group, pyrenyl group, chrysenyl group, carbazolyl group, dibenzofuranyl group and dibenzothiophenyl group; It may be selected from among, but is not limited to.

As another example, in Formulas 2-3 and 2-4, R ₂₃₁ to R ₂₃₄ and R ₂₄₁ may be independently selected from the following Formulas 7-1 to 7-16, but are not limited thereto:

In formulas 7-1 to 7-16,

Y ₇₁ is selected from C(R ₇₃ )(R ₇₄ ), N(R ₇₃ ), O and S;

R ₇₁ to R ₇₄ 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 and naphthyl group;

a71 is selected from 1, 2, 3, 4 and 5;

a72 is selected from 1, 2, 3, 4, 5, 6 and 7;

a73 is selected from 1, 2, 3, 4, 5 and 6;

a74 is selected from 1, 2 and 3;

a75 is selected from 1, 2, 3 and 4;

* is a bonding site with a neighboring atom.

As another example, in Formulas 2-3 and 2-4, R ₂₃₁ to R ₂₃₄ and R ₂₄₁ may be independently selected from the following Formulas 8-1 to 8-29, but are not limited thereto:

In formulas 8-1 to 8-29,

t-Bu is a tert-butyl group;

Ph is a phenyl group;

* is a bonding site with a neighboring atom.

In Formulas 2-3 and 2-4, b231 to b234 and b241 may be independently selected from 1, 2, and 3. For example, in Formulas 2-3 and 2-4, b231 to b234 and b241 may be independently selected from 1 and 2, but are not limited thereto.

In Formulas 2-1 to 2-4, R ₂₁₁ , R ₂₁₂ , R ₂₂₁ , R ₂₂₂ , R ₂₃₅ to R ₂₃₈ and R ₂₄₂ are each independently selected from 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 heterocyclo. Alkyl 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 heterocondensed polycyclic group, -Si(Q ₁ )(Q ₂ )(Q ₃ ), -N(Q ₁ )(Q ₂ ), -B(Q ₁ )(Q ₂ ), -C(=O)(Q ₁ ), -S(=O) ₂ (Q ₁ ) and -P(=O) (Q ₁ )(Q ₂ );

Q ₁ to Q ₃ 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 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 condensed polycyclic group, monovalent non-aromatic condensed polycyclic group , may be selected from a biphenyl group and a terphenyl group.

For example, in Formulas 2-1 to 2-4, R ₂₁₁ , R ₂₁₂ , R ₂₂₁ , R ₂₂₂ , R ₂₃₅ to R ₂₃₈ and R ₂₄₂ are each independently selected from hydrogen, deuterium, -F, -Cl, -Br, -I, C ₁ -C ₂₀ alkyl group, C ₂ -C ₂₀ alkenyl group, C ₂ -C ₂₀ alkynyl group and C ₁ -C ₂₀ alkoxy group;

Deuterium, -F, -Cl, -Br, -I, C ₆ -C ₆₀ aryl group, C ₆ -C ₆₀ aryloxy group, C ₆ -C ₆₀ arylthio group, C ₁ -C ₆₀ heteroaryl group, 1 divalent non-aromatic condensed polycyclic group, monovalent non-aromatic heterocondensed polycyclic group, -N(Q ₃₁ )(Q ₃₂ ), -Si(Q ₃₁ )(Q ₃₂ )(Q ₃₃ ) and -B(Q ₃₁ ) (Q ₃₂ ) substituted with at least one selected from C ₁ -C ₂₀ alkyl group, C ₂ -C ₂₀ alkenyl group, C ₂ -C ₂₀ alkynyl group and C ₁ -C ₂₀ 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 and monovalent non-aromatic condensed heteropolycyclic group;

Deuterium, -F, -Cl, -Br, -I, C ₁ -C ₂₀ alkyl group, C ₂ -C ₂₀ alkenyl group, C ₂ -C ₂₀ alkynyl group and C ₁ -C ₂₀ 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 heteropolycyclic group, - A C ₃ -C ₁₀ cycloalkyl group substituted with at least one selected from N(Q ₃₁ )(Q ₃₂ ), -Si(Q ₃₁ )(Q ₃₂ )(Q ₃₃ ) and -B(Q ₃₁ )(Q ₃₂ ), 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 and monovalent non-aromatic condensed heteropolycyclic group; and

-Si(Q ₁ )(Q ₂ )(Q ₃ ), -N(Q ₁ )(Q ₂ ) and -B(Q ₁ )(Q ₂ );

Q ₁ to Q ₃ and Q ₃₁ to Q ₃₃ may be independently selected from a C ₁ -C ₂₀ alkyl group, a C ₆ -C ₆₀ aryl group, a biphenyl group, and a terphenyl group, but are not limited thereto.

As another example, in Formulas 2-1 to 2-4, R ₂₁₁ , R ₂₁₂ , R ₂₂₁ , R ₂₂₂ , R ₂₃₅ to R ₂₃₈ and R ₂₄₂ are each independently selected from hydrogen, deuterium, -F, -Cl, -Br, -I, C ₁ -C ₂₀ alkyl group, C ₂ -C ₂₀ alkenyl group, C ₂ -C ₂₀ alkynyl group and C ₁ -C ₂₀ alkoxy group;

Deuterium, -F, -Cl, -Br, -I, phenoxy group, phenylthio group, phenyl group, biphenyl group, terphenyl group, naphthyl group, -N(Q ₃₁ )(Q ₃₂ ), -Si(Q ₃₁ )( Q ₃₂ ) (Q ₃₃ ) and -B (Q ₃₁ ) (Q ₃₂ ), substituted with at least one selected from C ₁ -C ₂₀ alkyl group, C ₂ -C ₂₀ alkenyl group, C ₂ -C ₂₀ alkynyl group and C ₁ -C ₂₀ alkoxy group;

Phenoxy group, phenylthio group, phenyl group, biphenyl group, terphenyl group, pentalenyl group, indenyl group, naphthyl group, azulenyl group, heptalenyl group, indacenyl group, acenaphthyl group, fluorenyl group, spiro-fluore Nyl 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, pyrrolyl group, thiophenyl group, furanyl group, imidazolyl group, pyrazolyl group, thiazolyl group, iso Thiazolyl group, oxazolyl group, isoxazolyl group, pyridinyl group, pyrazinyl group, pyrimidinyl group, pyridazinyl group, isoindoleyl group, indoleyl group, indazolyl group, purinyl group, quinolinyl group, isoquinoli Nyl group, carbazolyl group, benzoquinolinyl group, phthalazinyl group, naphthyridinyl group, quinoxalinyl group, benzoquinoxalinyl group, quinazolinyl group, benzoquinazolinyl group, cynolinyl group, phenanthridinyl group, acridinyl group , phenanthrolinyl group, phenazinyl group, benzimidazolyl group, benzofuranyl group, benzothiophenyl group, isobenzothiazolyl group, benzoxazolyl group, isobenzooxazolyl group, triazolyl group, tetrazolyl group, oxadiazole diyl group, triazinyl group, dibenzofuranyl group, dibenzothiophenyl group, dibenzosilolyl group, benzocarbazolyl group, dibenzocarbazolyl group, thiadiazolyl group, imidazopyridinyl group and imidazopyrimidinyl group;

Deuterium, -F, -Cl, -Br, -I, C ₁ -C ₂₀ alkyl group, C ₁ -C ₂₀ alkoxy group, phenoxy group, phenylthio group, phenyl group, biphenyl group, terphenyl group, pentalenyl group, indenyl group , naphthyl group, azulenyl group, hepthalenyl group, indacenyl group, acenaphthyl group, fluorenyl group, spiro-fluorenyl 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, co Ronenyl group, ovalenyl group, pyrrolyl group, thiophenyl group, furanyl group, imidazolyl group, pyrazolyl group, thiazolyl group, isothiazolyl group, oxazolyl group, isoxazolyl group, pyridinyl group, pyrazinyl group, pyrazolyl group Midinyl group, pyridazinyl group, isoindoleyl group, indolyl group, indazolyl group, purinyl group, quinolinyl group, isoquinolinyl group, carbazolyl group, benzoquinolinyl group, phthalazinyl group, naphthyridinyl group, quinoc Salinyl group, benzoquinoxalinyl group, quinazolinyl group, benzoquinazolinyl group, cynolinyl group, phenanthridinyl group, acridinyl group, phenanthrolinyl group, phenazinyl group, benzimidazolyl group, benzofuranyl group, benzothiophenyl group , isobenzothiazolyl group, benzoxazolyl group, isobenzooxazolyl group, triazolyl group, tetrazolyl group, oxadiazolyl group, triazinyl group, dibenzofuranyl group, dibenzothiophenyl group, dibenzosilolyl group, Benzocarbazolyl group, dibenzocarbazolyl group, thiadiazolyl group, imidazopyridinyl group, imidazopyrimidinyl group, -N(Q ₃₁ )(Q ₃₂ ), -Si(Q ₃₁ )(Q ₃₂ )( Q ₃₃ ) and -B (Q ₃₁ ) (Q ₃₂ ), substituted with at least one of phenoxy group, phenylthio group, phenyl group, biphenyl group, terphenyl group, pentalenyl group, indenyl group, naphthyl group, azulenyl group, hep Talenyl group, indacenyl group, acenaphthyl group, fluorenyl group, spiro-fluorenyl 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, pyrrolyl group , thiophenyl group, furanyl group, imidazolyl group, pyrazolyl group, thiazolyl group, isothiazolyl group, oxazolyl group, isoxazolyl group, pyridinyl group, pyrazinyl group, pyrimidinyl group, pyridazinyl group, iso Indoleyl group, indoleyl group, indazolyl group, purinyl group, quinolinyl group, isoquinolinyl group, carbazolyl group, benzoquinolinyl group, phthalazinyl group, naphthyridinyl group, quinoxalinyl group, benzoquinoxalinyl group, quina Zolinyl group, benzoquinazolinyl group, cinolinyl group, phenanthridinyl group, acridinyl group, phenanthrolinyl group, phenazinyl group, benzimidazolyl group, benzofuranyl group, benzothiophenyl group, isobenzothiazolyl group, benzoxa Zolyl group, isobenzooxazolyl group, triazolyl group, tetrazolyl group, oxadiazolyl group, triazinyl group, dibenzofuranyl group, dibenzothiophenyl group, dibenzosilolyl group, benzocarbazolyl group, dibenzocarbazole diary group, thiadiazolyl group, imidazopyridinyl group and imidazopyrimidinyl group; and

-Si(Q ₁ )(Q ₂ )(Q ₃ ), -N(Q ₁ )(Q ₂ ) and -B(Q ₁ )(Q ₂ );

Q ₁ to Q ₃ and Q ₃₁ to Q ₃₃ may be independently selected from a C ₁ -C ₂₀ alkyl group, a phenyl group, a biphenyl group, a terphenyl group, and a naphthyl group, but are not limited thereto.

As another example, in Formulas 2-1 to 2-4, R ₂₁₁ , R ₂₁₂ , R ₂₂₁ , R ₂₂₂ , R ₂₃₅ to R ₂₃₈ and R ₂₄₂ are each independently selected from hydrogen, deuterium, -F, -Cl , -Br, -I, C ₁ -C ₂₀ alkyl group, C ₂ -C ₂₀ alkenyl group, C ₂ -C ₂₀ alkynyl group and C ₁ -C ₂₀ alkoxy group;

Deuterium, -F, -Cl, -Br, -I, phenoxy group, phenylthio group, phenyl group, biphenyl group, terphenyl group, naphthyl group, -N(Q ₃₁ )(Q ₃₂ ), -Si(Q ₃₁ )( Q ₃₂ )(Q ₃₃ ) and -B(Q ₃₁ )(Q ₃₂ ), substituted with at least one of a C ₁ -C ₂₀ alkyl group, a C ₂ -C ₂₀ alkenyl group, a C ₂ -C ₂₀ alkynyl group, and C ₁ - C ₂₀ alkoxy group;

Phenoxy group, phenylthio group, phenyl group, biphenyl group, terphenyl group, naphthyl group, fluorenyl group, benzofluorenyl group, dibenzofluorenyl group, phenalenyl group, phenanthrenyl group, anthracenyl group, triphenylenyl group, Pyrenyl group, chrysenyl group, carbazolyl group, dibenzofuranyl group and dibenzothiophenyl group;

Deuterium, -F, -Cl, -Br, -I, C ₁ -C ₂₀ alkyl group, C ₁ -C ₂₀ alkoxy group, phenoxy group, phenylthio group, phenyl group, biphenyl group, terphenyl group, naphthyl group, fluorenyl group , benzofluorenyl group, dibenzofluorenyl group, phenalenyl group, phenanthrenyl group, anthracenyl group, triphenylenyl group, pyrenyl group, chrysenyl group, carbazolyl group, dibenzofuranyl group, dibenzothiophenyl group. , -N(Q ₃₁ )(Q ₃₂ ), -Si(Q ₃₁ )(Q ₃₂ )(Q ₃₃ ), and -B(Q ₃₁ )(Q ₃₂ ), a phenoxy group, a phenylthio group, Phenyl group, biphenyl group, terphenyl group, naphthyl group, fluorenyl group, benzofluorenyl group, dibenzofluorenyl group, phenalenyl group, phenanthrenyl group, anthracenyl group, triphenylenyl group, pyrenyl group, chrysenyl group. , carbazolyl group, dibenzofuranyl group and dibenzothiophenyl group; and

-Si(Q ₁ )(Q ₂ )(Q ₃ ), -N(Q ₁ )(Q ₂ ) and -B(Q ₁ )(Q ₂ );

Q ₁ to Q ₃ and Q ₃₁ to Q ₃₃ may be independently selected from a C ₁ -C ₂₀ alkyl group, a phenyl group, a biphenyl group, a terphenyl group, and a naphthyl group, but are not limited thereto.

As another example, in Formulas 2-1 to 2-4, R ₂₁₁ , R ₂₁₂ , R ₂₂₁ , R ₂₂₂ , R ₂₃₅ to R ₂₃₈ and R ₂₄₂ are each independently selected from hydrogen, deuterium, -F, -Cl , -Br, -I, methyl group, ethyl group, n-propyl group, iso-propyl group, n-butyl group, iso-butyl group, sec-butyl group, tert-butyl group, methoxy group, ethoxy group, iso-prop Oxy group, n-butoxy group, iso-butoxy group, sec-butoxy group, tert-butoxy group, -Si(CH ₃ ) ₃ , -Si(Ph) ₃ , -N(Ph ₂ ) ₂ , -B(Ph ) ₂ and the following formulas 9-1 to 9-15, but are not limited thereto:

In formulas 9-1 to 9-15,

Y ₉₁ is selected from C(R ₉₆ )(R ₉₇ ), N(R ₉₆ ), O and S;

R ₉₁ to R ₉₃ are independently selected from hydrogen, deuterium, -F, -Cl, -Br, -I, phenoxy group, phenylthio group, phenyl group, biphenyl group, terphenyl group, and naphthyl group;

R ₉₄ to R ₉₇ are each independently selected from hydrogen, deuterium, -F, -Cl, -Br, -I, C ₁ -C ₂₀ alkyl group, C ₁ -C ₂₀ alkoxy group, phenoxy group, phenylthio group, phenyl group, Biphenyl group, terphenyl group, naphthyl group, fluorenyl group, benzofluorenyl group, dibenzofluorenyl group, phenalenyl group, phenanthrenyl group, anthracenyl group, triphenylenyl group, pyrenyl group, chrysenyl group, carboxylic acid selected from zolyl group, dibenzofuranyl group and dibenzothiophenyl group;

a91 is selected from 1, 2, 3, 4 and 5;

a92 is selected from 1, 2, 3, 4, 5, 6 and 7;

a93 is selected from 1, 2, 3, 4, 5 and 6;

a94 is selected from 1, 2 and 3;

a95 is selected from 1, 2, 3 and 4;

* is a bonding site with a neighboring atom.

As another example, in Formulas 2-1 to 2-4, R ₂₁₁ , R ₂₁₂ , R ₂₂₁ , R ₂₂₂ , R ₂₃₅ to R ₂₃₈ and R ₂₄₂ are each independently selected from hydrogen, deuterium, -F, -Cl , -Br, -I, methyl group, ethyl group, n-propyl group, iso-propyl group, n-butyl group, iso-butyl group, sec-butyl group, tert-butyl group, methoxy group, ethoxy group, iso-prop Oxygen group, n-butoxy group, iso-butoxy group, sec-butoxy group, tert-butoxy group, -Si(CH ₃ ) ₃ , -Si(Ph) ₃ , -N(Ph ₂ ) ₂ , -B(Ph ) ₂ and the following formulas 10-1 to 10-26, but are not limited thereto:

In formulas 10-1 to 10-26,

* is a bonding site with a neighboring atom.

In Formulas 2-1 to 2-4, b211, b212, b221, b222, b235 to b238, and b242 may be independently selected from 1, 2, and 3. For example, in Formulas 2-1 to 2-4, b211, b212, b221, b222, b235 to b238, and b242 may be independently selected from 1 and 2, but are not limited thereto.

In Formulas 2-1 and 2-2, n211, n212, and n221 may be independently selected from 1, 2, and 3.

In Formula 2-3, n231 to n234 are independently selected from 0, 1, and 2; The sum of n231 to n234 may be selected from 1, 2, 3, 4, 5, and 6.

In Formula 2-4, n241 may be selected from 3, 4, 5, 6, 7, and 8.

For example, the second compound represented by any of the formulas 2-1 to 2-4 may be represented by any of the formulas 2-11 to 2-16, but is not limited thereto:

<Formula 2-11>

<Formula 2-12>

<Formula 2-13>

<Formula 2-14>

<Formula 2-15>

<Formula 2-16>

In Formulas 2-11 to 2-16,

Ar ₂₄₁ , L ₂₁₁ to L ₂₁₃ , L ₂₂₁ , L ₂₃₁ to L ₂₃₄ , L ₂₄₁ , a211 to a213, a221, a231 to a234, a241, R ₂₃₁ to R ₂₃₄ , R ₂₄₁ , b231 to b234, b241, R ₂₁₁ , R ₂₁₂ , R ₂₂₁ , R ₂₂₂ , R ₂₃₅ to R 238 , R ₂₄₂ , _b211 , b212, b221, b222, b235 to b238, b242, n211 and n212 are as defined in Formulas 2-1 to 2-4;

R ₂₄₃ to R ₂₄₇ are each independently the same as the definition of R ₂₄₁ in Formula 2-3;

b243 to b247 are each independently the same as the definition of b241 in Formula 2-4;

L ₂₂₂ is defined the same as L ₂₂₁ in Formula 2-2; a222 is defined the same as a221 in Formula 2-2; R ₂₂₃ is defined the same as R ₂₂₁ in Formula 2-2; b223 is defined the same as b221 in Formula 2-2;

L ₂₄₂ to L ₂₄₆ are independently defined the same as L ₂₄₁ in Formula 2-4; a242 to a246 are independently defined the same as a241 in Formula 2-4.

As another example, the second compound represented by any one of the formulas 2-1 to 2-4 may be represented by any of the following formulas 2-21 to 2-29, but is not limited thereto:

<Formula 2-21>

<Formula 2-22>

<Formula 2-23>

<Formula 2-24>

<Formula 2-25>

<Formula 2-26>

<Formula 2-27>

<Formula 2-28>

<Formula 2-29>

In Formulas 2-21 to 2-29,

Ar ₂₄₁ , L ₂₁₁ to L ₂₁₃ , L ₂₂₁ , L ₂₃₁ to L ₂₃₄ , L ₂₄₁ , a211 to a213, a221, a231 to a234, a241, R ₂₃₁ to R ₂₃₄ , R ₂₄₁ , b231 to b234, b241, R ₂₁₁ , R ₂₁₂ , R ₂₂₁ , R ₂₂₂ , R 235 to R ₂₃₈ , R ₂₄₂ , _b211 , b212, b221, b222, b235 to b238, b242, n211 and n212 are as defined in Formulas 2-1 to 2-4 above. ;

R ₂₂₄ is defined the same as R ₂₂₂ in Formula 2-2;

L ₂₂₂ is defined the same as L ₂₂₁ in Formula 2-2; a222 is defined the same as a221 in Formula 2-2; R ₂₂₃ is defined the same as R ₂₂₁ in Formula 2-2; b223 is defined the same as b221 in Formula 2-2;

L ₂₄₂ to L ₂₄₆ are independently defined the same as L ₂₄₁ in Formula 2-4; a242 to a246 are independently defined the same as a241 in Formula 2-4; R ₂₄₃ to R ₂₄₇ are independently defined the same as R ₂₄₁ in Formula 2-4; R ₂₄₈ and R ₂₄₉ are independently defined the same as R ₂₄₂ in Formula 2-4; b243 to b247 are independently defined the same as b241 in Formula 2-4; b248 and b249 are independently defined the same as b242 in Formula 2-4.

As another example, the second compound represented by any one of Formulas 2-1 to 2-4 may be selected from the following compounds H-1 to H-68, but is not limited thereto:

The first compound represented by Formula 1 includes a benzochrysene core. The first compound represented by Formula 1 includes a benzochrysene core and can exhibit very strong blue fluorescence.

In general, it is known that amine-based compounds having a chrysen core can only synthesize amine derivatives with a symmetrical structure. However, the first compound represented by Formula 1 includes a benzochrysene core, so that an amine derivative with an asymmetric structure can be synthesized.

Since the first compound represented by Formula 1 may have various substituents, it may have various electrical and luminescent properties.

Therefore, an organic light-emitting device employing the first compound represented by Formula 1 can have the effects of low driving voltage, high efficiency, high brightness, long life, and high color purity.

Since energy transfer can occur smoothly from the second compound represented by any of Formulas 2-1 to 2-4 to the first compound, the organic light-emitting device containing the first compound and the second compound has high efficiency. This can be improved.

The first compound represented by Formula 1 and the second compound represented by any one of Formulas 2-1 to 2-4 can be synthesized using a known organic synthesis method.

For example, the first compound and the second compound may be included in the light-emitting layer, but are not limited thereto.

When the first compound and the second compound are included in the light emitting layer, the first compound may be a dopant and the second compound may be a host, but are not limited thereto.

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. ) may further be included.

[Hole transport area in organic layer 150]

The hole transport region may have 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 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.

When the hole transport region includes a hole injection layer, vacuum deposition, spin coating, casting, LB (Langmuir-Blodgett), inkjet printing, laser printing, and laser induced thermal imaging (LITI) methods are used. The hole injection layer can be formed on the first electrode 110 using various methods such as the like.

When forming a hole injection layer by vacuum deposition, deposition conditions include, for example, a deposition temperature of about 100 to about 500°C, a vacuum degree of about 10 ^-8 to about 10 ^-3 torr, and about 0.01 to about 100 Å/sec. Within the deposition rate range, it can be selected in consideration of the hole injection layer compound to be deposited and the hole injection layer structure to be formed.

When forming a hole injection layer by spin coating, the coating conditions are a coating speed of about 2000 rpm to about 5000 rpm and a heat treatment temperature of about 80 ℃ to 200 ℃, the compound for the hole injection layer to be deposited and the hole to be formed It may be selected considering the injection layer structure.

When the hole transport region includes a hole transport layer, vacuum deposition, spin coating, casting, LB (Langmuir-Blodgett), inkjet printing, laser printing, laser induced thermal imaging (LITI), etc. The hole transport layer can be formed on the first electrode 110 or on the hole injection layer using various methods. When forming a hole transport layer by vacuum deposition or spin coating, the deposition and coating conditions of the hole transport layer refer to the deposition and coating conditions of the hole injection layer.

The hole transport region is m-MTDATA, TDATA, 2-TNATA, NPB, 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), PEDOT/PSS (Poly(3,4-ethylenedioxythiophene)/Poly(4-styrenesulfonate):Poly(3,4-ethylenedioxythiophene)/Poly(4-styrenesulfonate)), Pani/CSA (Polyaniline/Camphor sulfonicacid:Polyaniline/ Camphorsulfonic acid), PANI/PSS (Polyaniline)/Poly(4-styrenesulfonate):polyaniline)/poly(4-styrenesulfonate)), at least one of the compound represented by Formula 201 below and the compound represented by Formula 202 below May include:

<Formula 201>

<Formula 202>

In formulas 201 and 202,

L ₂₀₁ to L ₂₀₅ 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 cyclo 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,

xa1 to xa4 are independently selected from 0, 1, 2, and 3;

xa5 is selected from 1, 2, 3, 4 and 5; R ₂₀₁ to R ₂₀₄ 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 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. can be selected.

For example, in formulas 201 and 202,

L ₂₀₁ to L ₂₀₅ are each independently selected from a phenylene group, pentalenylene group, indenylene group, naphthylene group, azulenylene group, heptalenylene group, indacenylene group, acenaphthylene group, fluorenylene group, spiro -Bifluorenylene group, benzofluorenylene group, dibenzofluorenylene group, phenalenylene group, phenanthrenylene group, anthracenylene group, fluoranthenylene group, triphenylenylene group, pyrenylene group, chrysenylene group , naphthacenylene group, picenylene group, perylenylene group, pentaphenylene group, hexacenylene group, pentacenylene group, rubisenylene group, coronenylene group, ovalenylene group, thiophenylene group, furanylene group, carbazolyl Len 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 are independently 0, 1, or 2;

According to another embodiment, xa5 is 1, 2, or 3;

According to another embodiment, R ₂₀₁ to R ₂₀₄ 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, and an 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, indole diyl 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, 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, 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.

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>

The compound represented by Formula 202 may be represented by the following Formula 202A, but is not limited thereto:

<Formula 202A>

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

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 ₂₁₆ 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.

In Formulas 201A and 201A-1, R ₂₁₃ and R ₂₁₄ may optionally be combined with each other to form a saturated or unsaturated ring.

The compound represented by Formula 201 and the compound represented by Formula 202 may include, but are not limited to, the following compounds HT1 to HT20:

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 10000 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 be one of a quinone derivative, a metal oxide, and a cyano group-containing compound, 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 (1,4,5,8,9,11-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 a non-aromatic condensed polycyclic group and a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, 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)]

Vacuum deposition, spin coating, casting, LB (Langmuir-Blodgett), inkjet printing, laser printing, or laser induced thermal imaging (LITI) method is applied to the top of the first electrode 110 or the hole transport area. ), etc., are used to form the light-emitting layer. When forming the light-emitting layer by vacuum deposition and spin coating, the deposition and coating conditions of the light-emitting layer refer to the deposition and coating conditions of the hole injection layer.

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 may have 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 may be layered. It has a mixed structure and can emit white light. Alternatively, the light emitting layer may be a white light emitting layer and may further include a color converting layer or a color filter that converts the white light into light of a desired color.

The light emitting layer may include a host and a dopant.

The host may include a second compound represented by any one of the following formulas 2-1 to 2-4.

The dopant may include the first compound represented by Chemical Formula 1.

The weight ratio of the first compound to the second compound in the light-emitting layer may be 1:99 to 20:80, but is not limited thereto. For example, the weight ratio of the first compound to the second compound may be 1:99 to 10:90, but is not limited thereto. As another example, the weight ratio of the first compound to the second compound may be 3:97 to 5:95, 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.

[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 of 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 thereto.

When the electron transport region includes a hole blocking layer, vacuum deposition, spin coating, casting, LB (Langmuir-Blodgett), inkjet printing, laser printing, and laser induced thermal imaging (LITI) methods are used. The hole blocking layer can be formed on top of the light emitting layer using various methods such as the like. When forming a hole blocking layer by vacuum deposition or spin coating, the deposition and coating conditions of the hole blocking layer refer to the deposition and coating conditions of the hole injection layer.

The hole blocking layer may include, for example, at least one of the following BCP and Bphen, but is not limited thereto.

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 range described above, excellent hole blocking characteristics can be obtained without a substantial increase in driving voltage.

The electron transport region may include an electron transport layer. The electron transport layer is formed using various methods such as vacuum deposition, spin coating, casting, Langmuir-Blodgett (LB), inkjet printing, laser printing, and laser induced thermal imaging (LITI). It may be formed on top of the light emitting layer or on the hole blocking layer. When forming the electron transport layer by vacuum deposition and spin coating, the deposition and coating conditions of the electron transport layer refer to the deposition and coating conditions of the hole injection layer.

The electron transport layer may further include the BCP, Bphen, and at least one of the following Alq ₃ , Balq, TAZ, and NTAZ.

Alternatively, the electron transport layer may include at least one of the compounds represented by the following formula 601:

<Formula 601>

Ar ₆₀₁ -[(L ₆₀₁ ) _xe1 -E ₆₀₁ ] _xe2

In the formula 601, Ar ₆₀₁ is a naphthalene group, a heptalene group, a fluorene group, a spiro-fluorene group, a benzofluorene group, a dibenzofluorene group, and phenalene. ) group, phenanthrene group, anthracene group, fluoranthene group, triphenylene group, pyrene group, chrysene group, naphthacene ) group, picene group, perylene group, pentaphene group and indenoanthracene 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 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, hepthalene group, fluorene group, spy Ro-fluorene 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 and indenoanthracene group; is selected from;

For a description of L ₆₀₁ , refer to the description of L ₂₀₁ in this specification;

E ₆₀₁ is pyrrolyl group, thiophenyl group, furanyl group, imidazolyl group, pyrazolyl group, thiazolyl group, isothiazolyl group (isothiazolyl) group, oxazolyl group, isoxazolyl group, pyridinyl group, pyrazinyl group, pyrimidinyl group, pyridazinyl group, Isoindolyl group, indolyl group, indazolyl group, purinyl group, quinolinyl group, isoquinolinyl group, benzoquinolinyl group (benzoquinolinyl group, phthalazinyl group, naphthyridinyl group, quinoxalinyl group, quinazolinyl group, cinnolinyl group, carbazolyl group) group, phenanthridinyl group, acridinyl group, phenanthrolinyl group, phenazinyl group, benzoimidazolyl group, benzofuranyl group, Benzothiophenyl group, isobenzothiazolyl group, benzooxazolyl group, isobenzooxazolyl group, triazolyl group, tetrazolyl group, oxadia oxadiazolyl group, triazinyl group, dibenzofuranyl group, dibenzothiophenyl group, benzocarbazolyl group and dibenzocarbazolyl 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, pentalenyl group, indenyl group, naphthyl group, azulenyl group, heptalenyl group, indacenyl group, acenaphthyl group, fluorenyl group, spiro-fluorenyl 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, penta Phenyl group, hexacenyl group, pentacenyl group, rubisenyl group, coronenyl group, ovalenyl group, pyrrolyl group, thiophenyl group, furanyl group, imidazolyl group, pyrazolyl group, thiazolyl group, isothiazolyl group, oxazole Diary group, isoxazolyl group, pyridinyl group, pyrazinyl group, pyrimidinyl group, pyridazinyl group, isoindolyl group, indolyl group, indazolyl group, purinyl group, quinolinyl group, isoquinolinyl group, benzoquinolinyl group , phthalazinyl group, naphthyridinyl group, quinoxalinyl group, quinazolinyl group, cinolinyl group, carbazolyl group, phenanthridinyl group, acridinyl group, phenanthrolinyl group, phenazinyl group, benzoimidazolyl group, benzofura Nyl group, benzothiophenyl group, isobenzothiazolyl group, benzoxazolyl group, isobenzooxazolyl group, triazolyl group, tetrazolyl group, oxadiazolyl group, triazinyl group, dibenzofuranyl group, dibenzothiophenyl group, Benzocarbazolyl group, dibenzocarbazolyl 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 a pyrrolyl group, a thiophenyl group, and a furanyl group. , imidazolyl group, pyrazolyl group, thiazolyl group, isothiazolyl group, oxazolyl group, isoxazolyl group, pyridinyl group, pyrazinyl group, pyrimidinyl group, pyridazinyl group, isoindoleyl group, indolyl group, Indazolyl group, purinyl group, quinolinyl group, isoquinolinyl group, benzoquinolinyl group, phthalazinyl group, naphthyridinyl group, quinoxalinyl group, quinazolinyl group, cynolinyl group, carbazolyl group, phenanthridinyl group , acridinyl group, phenanthrolinyl group, phenazinyl group, benzoimidazolyl group, benzofuranyl group, benzothiophenyl group, isobenzothiazolyl group, benzoxazolyl group, isobenzooxazolyl group, triazolyl group, tetrazolyl group , oxadiazolyl group, triazinyl group, dibenzofuranyl group, dibenzothiophenyl group, benzocarbazolyl group and dibenzocarbazolyl group; is selected from;

xe1 is selected from 0, 1, 2, and 3;

xe2 is selected from 1, 2, 3 and 4;

Q ₃₁ to Q ₃₃ are independently of each other, hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazo No 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 condensed polycyclic group, monovalent non-aromatic It is selected from heterocondensed polycyclic groups, biphenyl groups, and terphenyl groups.

Alternatively, the electron transport layer may include at least one of the compounds represented by the following Chemical Formula 602:

<Formula 602>

In the above formula 602,

X ₆₁₁ is N or C-(L ₆₁₁ ) _xe611 -R ₆₁₁ , _{X 612 is} N or C- _{(L 612 ) xe612 -R 612} , _and , at least one of X ₆₁₁ to X ₆₁₃ is N;

For a description of each of L ₆₁₁ to L ₆₁₆ , refer to the description of L ₂₀₁ in this specification;

R ₆₁₁ to R ₆₁₆ are each independently a phenyl group, biphenyl group, terphenyl group, naphthyl group, fluorenyl group, spiro-fluorenyl group, benzofluorenyl group, dibenzofluorenyl group, phenanthrenyl group, anthracenyl group , pyrenyl group, chrysenyl group, pyridinyl group, pyrazinyl group, pyrimidinyl group, pyridazinyl group, quinolinyl group, isoquinolinyl group, quinoxalinyl group, quinazolinyl group, carbazolyl group and triazinyl 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, azulenyl group, fluorenyl group, spiro-fluorenyl group, benzofluorenyl group, dibenzofluorenyl group, phenanthrenyl group, anthracenyl group, pyrenyl group, Chrysenyl group, pyridinyl group, pyrazinyl group, pyrimidinyl group, pyridazinyl group, quinolinyl group, isoquinolinyl group, quinoxalinyl group, quinazolinyl group, carbazolyl group, triazinyl 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-fluorenyl group, benzo Fluorenyl group, dibenzofluorenyl group, phenanthrenyl group, anthracenyl group, pyrenyl group, chrysenyl group, pyridinyl group, pyrazinyl group, pyrimidinyl group, pyridazinyl group, quinolinyl group, isoquinoli Nyl group, quinoxalinyl group, quinazolinyl group, carbazolyl group and triazinyl group; is selected from;

xe611 to xe616 are independently selected from 0, 1, 2, and 3;

Q ₃₁ to Q ₃₃ are independently of each other, hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazo No 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 condensed polycyclic group, monovalent non-aromatic It is selected from heterocondensed polycyclic groups, biphenyl groups, and terphenyl groups.

The compound represented by Formula 601 and 602 may include at least one of the following compounds ET1 to ET15.

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 layer may further include a metal-containing material in addition to the materials described above.

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 is formed using various methods such as vacuum deposition, spin coating, casting, LB (Langmuir-Blodgett), inkjet printing, laser printing, and laser thermal imaging (LITI). , may be formed on the electron transport layer. When forming an electron injection layer by vacuum deposition or spin coating, the deposition and coating conditions of the electron injection layer refer to the deposition and coating conditions of the hole injection layer.

The electron injection layer may include at least one selected from LiF, NaCl, CsF, Li ₂ O, BaO, and LiQ.

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

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

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

[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 HT13 to HT20 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, the C ₂ -C ₆₀ alkynyl group refers to a hydrocarbon group containing one or more carbon triple bonds at the middle or end of the C ₂ -C ₆₀ alkyl group, and specific examples thereof include ethynyl group, propynyl group, etc. 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 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 divalent 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” refers to a phenyl group, “Me” refers to a methyl group, “Et” refers to an ethyl group, “ter-Bu” or “Bu ^t ” refers to 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 “a 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.

[Example]

Synthesis Example 1: Synthesis of Compound 2

1) Synthesis of intermediate A-1

Under a nitrogen atmosphere, 6.34 g (20 mmol) of 2-bromo-4-chloro-1-iodobenzene, 0.190 g (1 mmol) of CuI, 1.155 g (1 mmol) of (Ph ₃ ) ₄ Pd, 1.96 ethynyltrimethylsilane. g (20 mmol) was dissolved in 200ml of anhydrous THF, and then 3.066g (30 mmol) of triethylamine was added dropwise. After 3 hours, the reaction solution was extracted three times with 100 ml of water and 10 ml of diethyl ether. The obtained organic layer was dried over magnesium sulfate, the solvent was evaporated, and the resulting residue was purified by separation using silica gel column chromatography to obtain 5.113 g (18 mmol, yield 90%) of Intermediate A-1.

2) Synthesis of intermediate A-2

Under nitrogen atmosphere, 5.113 g (18 mmol) of intermediate A-1, 2.44 g (20 mmol) of phenylboronic acid, 1.155 g (1 mmol) of Pd(PPh ₃ ) ₄ and 2.762 g (20 mmol) of K ₂ CO ₃ were mixed with THF/H2O ( 2/1 volume ratio) was dissolved in 200 mL of the mixed solution and stirred at 80°C for 12 hours. After cooling the reaction solution to room temperature, 50 mL of water was added, and the mixture was extracted three times with 150 mL of ethyl ether. The obtained organic solvent layer was dried with magnesium sulfate, the solvent was evaporated, and the resulting residue was purified by separation using silica gel column chromatography to obtain 4.26 g (15 mmol, yield 83%) of Intermediate A-2.

3) Synthesis of intermediate A-3

4.26 g (15 mmol) of Intermediate A-2 and 0.800 g (20 mmol) of sodium hydroxide were added to 100 mL of methanol. The mixture was stirred at 60°C for 1 hour. 50 mL of water was added to the reaction solution, and the mixture was extracted three times with 50 mL of ethyl ether. The obtained organic solvent layer was dried with magnesium sulfate, the solvent was evaporated, and the resulting residue was purified by separation using silica gel column chromatography to obtain 2.968 g (14 mmol, yield 93%) of Intermediate A-3.

4) Synthesis of intermediate A-4

Intermediate of Synthesis Example 1, except that 1-bromo-4-iodo-benzene was used instead of 2-bromo-4-chloro-1-iodobenzene, and intermediate A-4 was used instead of ethynyltrimethylsilane. 3.678 g (10 mmol, 71%) of intermediate A-4 was obtained using the same method as the synthesis method for A-1.

5) Synthesis of intermediate A-5

3.678 g (10 mmol) of Intermediate A-4 was dissolved in 100 ml dichloromethane, and 1.622 g of ICl was added dropwise. 50 mL of water was added to the reaction solution, and the mixture was extracted three times with 10 mL of dichloromethane. The obtained organic solvent layer was dried with magnesium sulfate, the solvent was evaporated, and the resulting residue was purified by separation using silica gel column chromatography to obtain 4.437 g (9 mmol, yield 90%) of Intermediate A-5.

6) Synthesis of Intermediate A-6

Intermediate A-6 was produced using the same method as the synthesis method of Intermediate A-1 in Synthesis Example 1, except that Intermediate A-5 was used instead of 2-bromo-4-chloro-1-iodobenzene. 3.756 g (8.1 mmol, 90%) was obtained.

7) Synthesis of intermediate A-7

2.741 g (7 mmol, 87%) of Intermediate A-7 was obtained using the same method as the synthesis method of Intermediate A-3 in Synthesis Example 1, except that A-6 was used instead of Intermediate A-2. .

8) Synthesis of Intermediate A

2.741 g (7 mmol) of Intermediate A-7 and 0.092 g (0.35 mmol) of PtCl ₂ were dissolved in 50 ml toluene and stirred at 100°C for 12 hours. 50 mL of water was added to the reaction solution, and the mixture was extracted three times with 50 mL of ethyl ether. The obtained organic solvent layer was dried with magnesium sulfate, the solvent was evaporated, and the resulting residue was purified by separation using silica gel column chromatography to obtain 1.564 g (4 mmol, yield 57%) of Intermediate A.

9) Synthesis of Compound 2

Under nitrogen atmosphere, 0.391 g (1 mmol) of intermediate A, 0.855 g (3 mmol) of 9,9-dimethyl-N-phenyl-9H-fluoren-2-amine, tris(dibenzylideneacetone)dipalladium (0) ( 0.091 g (0.1 mmol) of Pd ₂ (dba) ₃ ), 0.020 g (0.1 mmol) of tri-tert-butylphosphine, and 0.28 g (3 mmol) of KOtBu were dissolved in 60 mL of toluene and stirred at 90°C for 4 hours. . After cooling the reaction solution to room temperature, it was extracted three times with 50 ml of water and 50 ml of diethyl ether. The obtained organic layer was dried over magnesium sulfate, the solvent was evaporated, and the resulting residue was purified by separation using silica gel column chromatography to obtain 0.720 g (0.85 mmol, 86%) of Compound 2.

Synthesis Example 2: Synthesis of Compound 72

1) Synthesis of compound 72-1

Compound 2 of Synthesis Example 1, except that N-phenyldibenzo[b,d]furan-4-amine was used instead of 9,9-dimethyl-N-phenyl-9H-fluoren-2-amine. 0.500 g (0.87 mmol, 87%) of Intermediate 72-1 was obtained using the same method as the synthesis method.

2) Synthesis of compound 72

0.492 g (0.6 mmol, 69%) of Compound 72 was obtained using the same method as the synthesis method for Compound 2 in Synthesis Example 1, except that Intermediate 72-1 was used instead of Intermediate A.

Other additional compounds were synthesized using the same synthetic method as the above synthetic route and using appropriate intermediate materials. Those skilled in the art can easily recognize the synthetic methods for compounds other than the specific compounds disclosed in this specification by referring to the above synthetic routes and raw materials.

Example 1

For the anode, cut a corning 15 Ω/cm ² (1200 Å) ITO glass substrate into 50 mm This glass substrate was cleaned by irradiating it with ultraviolet rays and exposing it to ozone, and then installed in a vacuum deposition device.

After depositing 2-TNATA on the top of the anode to form a hole injection layer with a thickness of 600 Å, NPB was deposited on the top of the hole injection layer to form a hole transport layer with a thickness of 300 Å, and then H-4 and Compound 2 was co-deposited at a weight ratio of 98:2 to form an emission layer with a thickness of 300 Å.

Alq ₃ was deposited on top of the light emitting layer to form an electron transport layer of 300 Å. LiF was deposited on top of the electron transport layer to form an electron injection layer with a thickness of 10 Å, and then Al was vacuum deposited on top of the electron injection layer to form a cathode with a thickness of 3000 Å, thereby manufacturing an organic light emitting device.

Examples 2 to 12 and Comparative Examples 1 to 10

An organic light-emitting device was manufactured using the same method as Example 1, except that the compounds listed in Table 1 below were used instead of Compound 2 and H-4 when forming the light-emitting layer.

first compound Second compound first compound Second compound Example 1 compound 2 Compound H-4 Comparative Example 1 DPAVBi ADN Example 2 Compound 38 Compound H-4 Comparative Example 2 TPD ADN Example 3 Compound 9 Compound H-11 Comparative Example 3 Compound B-1 Compound A-1 Example 4 Compound 55 Compound H-11 Comparative Example 4 Compound B-1 Compound A-2 Example 5 Compound 10 Compound H-17 Comparative Example 5 Compound B-1 Compound A-3 Example 6 Compound 57 Compound H-17 Comparative Example 6 Compound B-2 Compound A-4 Example 7 Compound 13 Compound H-36 Comparative Example 7 Compound B-3 Compound A-5 Example 8 Compound 72 Compound H-36 Comparative Example 8 Compound B-3 Compound A-6 Example 9 Compound 15 Compound H-52 Comparative Example 9 Compound B-3 Compound A-7 Example 10 Compound 88 Compound H-52 Comparative Example 10 Compound B-4 Compound A-7 Example 11 Compound 18 Compound H-57 Example 12 Compound 90 Compound H-57

<Compound A-1>

<Compound A-2>

<Compound A-3>

<Compound A-4>

<Compound A-5>

<Compound A-6>

<Compound A-7>

<Compound B-1>

<Compound B-2>

<Compound B-3>

<Compound B-4>

Evaluation example 1

The driving voltage, current density, luminance, efficiency, and half-life of the organic light-emitting devices manufactured in Examples 1 to 12 and Comparative Examples 1 to 10 were measured using Kethley SMU 236 and a luminance meter PR650 and are shown in Table 2. The half life is a measure of the time it takes for the luminance to become 50% of the initial luminance after driving the organic light emitting device.

first compound Second compound driving voltage
(V) current density
(㎃/㎠) Luminance
(cd/㎡) efficiency
(cd/A) Luminous color Half life (hr @100㎃/㎠) Example 1 compound 2 Compound H-4 5.82 50 3540 7.08 blue 348 Example 2 Compound 38 Compound H-4 5.78 50 3560 7.12 blue 352 Example 3 Compound 9 Compound H-11 5.82 50 3335 6.67 blue 374 Example 4 Compound 55 Compound H-11 5.88 50 3360 6.72 blue 370 Example 5 Compound 10 Compound H-17 5.84 50 3570 7.14 blue 382 Example 6 Compound 57 Compound H-17 5.76 50 3545 7.09 blue 335 Example 7 Compound 13 Compound H-36 5.84 50 3640 7.28 blue 363 Example 8 Compound 72 Compound H-36 5.79 50 3375 6.75 blue 347 Example 9 Compound 15 Compound H-52 5.87 50 3585 7.17 blue 382 Example 10 Compound 88 Compound H-52 5.75 50 3475 6.95 blue 348 Example 11 Compound 18 Compound H-57 5.98 50 3440 6.88 blue 355 Example 12 Compound 90 Compound H-57 5.92 50 3625 7.25 blue 344 Comparative Example 1 DPAVBi DNA 7.01 50 2645 5.29 blue 258 Comparative Example 2 TPD DNA 6.96 50 2730 5.46 blue 248 Comparative Example 3 Compound B-1 Compound A-1 7.21 50 2660 5.32 blue 262 Comparative Example 4 Compound B-1 Compound A-2 7.15 50 2690 5.38 blue 254 Comparative Example 5 Compound B-1 Compound A-3 8.18 50 2525 5.05 blue 225 Comparative Example 6 Compound B-2 Compound A-4 8.07 50 2445 4.89 blue 192 Comparative Example 7 Compound B-3 Compound A-5 7.23 50 2620 5.24 turquoise 248 Comparative Example 8 Compound B-3 Compound A-6 7.54 50 2570 5.14 turquoise 245 Comparative Example 9 Compound B-3 Compound A-7 7.03 50 2675 5.35 turquoise 230 Comparative Example 10 Compound B-4 Compound A-7 7.05 50 2610 5.22 turquoise 234

From Table 1, it can be seen that the characteristics of the organic light-emitting devices of Examples 1 to 12 are superior to those of the organic light-emitting devices of Comparative Examples 1 to 10.

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 (20)

first electrode; It includes an organic layer including a second electrode and a light-emitting layer interposed between the first electrode and the second electrode;
The organic layer includes a first compound represented by the following Chemical Formula 1 and a second compound represented by any one of the following Chemical Formulas 2-1 to 2-4:
<Formula 1>

<Formula A>

<Formula 2-1>

<Formula 2-2>

<Formula 2-3>

<Formula 2-4>

In Formulas 1, A, and 2-1 to 2-4,
R ₁ to R ₁₄ are each independently a group represented by the formula A, 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 Substituted 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 ), -N(Q ₁ )(Q ₂ ), -B(Q ₁ )(Q ₂ ), -C(=O)(Q ₁ ), -S (=O) ₂ (Q ₁ ) and -P(=O)(Q ₁ )(Q ₂ );
At least one of R ₁ to R ₅ , R ₇ to R ₁₂ and R ₁₄ is a group represented by Formula A;
R ₂ and R ₈ are independently a group represented by the formula A;
Ar ₂₁₁ and Ar ₂₁₂ are independently selected from naphthalene, anthracene, triphenylene, pyrene, chrysene and perylene;
Ar ₂₄₁ is selected from benzene, biphenyl and triphenylene;
L ₁₀₁ , L ₂₁₁ to L ₂₁₃ , L ₂₂₁ , L ₂₃₁ to L ₂₃₄ and L ₂₄₁ are each independently a substituted or unsubstituted C ₃ -C ₁₀ cycloalkylene group, a substituted or unsubstituted C ₁ -C ₁₀ hetero Cycloalkylene 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 selected from an unsubstituted C ₁ -C ₆₀ heteroarylene group, a substituted or unsubstituted divalent non-aromatic condensed polycyclic group, and a substituted or unsubstituted divalent non-aromatic condensed heteropolycyclic group;
a101 is selected from 0, 1, 2 and 3;
a211 to a213, a221, a231 to a234, and a241 are each independently selected from 0, 1, and 2;
R ₁₀₁ , R ₁₀₂ , R ₂₃₁ to R ₂₃₄ and R ₂₄₁ 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 ₁ -C ₁₀ heterocycloalkyl group. 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, selected from a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group and a substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group;
b231 to b234 and b241 are independently selected from 1, 2, and 3;
R ₂₁₁ , R ₂₁₂ , R ₂₂₁ , R ₂₂₂ , R ₂₃₅ to R ₂₃₈ and R ₂₄₂ 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 Substituted 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 hetero Condensed polycyclic group, -Si(Q ₁ )(Q ₂ )(Q ₃ ), -N(Q ₁ )(Q ₂ ), -B(Q ₁ )(Q ₂ ), -C(=O)(Q ₁ ), -S(=O) ₂ (Q ₁ ) and -P(=O) (Q ₁ )(Q ₂ );
b211, b212, b221, b222, b235 to b238 and b242 are each independently selected from 1, 2 and 3;
n211, n212 and n221 are independently selected from 1, 2 and 3;
n231 to n234 are independently selected from 0, 1, and 2; The sum of n231 to n234 is selected from 1, 2, 3, 4, 5 and 6;
n241 is selected from 3, 4, 5, 6, 7 and 8;
Q ₁ to Q ₃ 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 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 condensed polycyclic group, monovalent non-aromatic condensed polycyclic group , biphenyl group, and terphenyl group. According to paragraph 1,
The first compound and the second compound are included in the light-emitting layer. According to paragraph 1,
R ₁ to R ₁₄ are each independently a group represented by the formula A, hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group. , hydrazino group, hydrazono group, carboxylic acid group, C ₁ -C ₂₀ alkyl group, C ₁ -C ₂₀ alkoxy group, cyclopentyl group and cyclohexyl group;
Phenyl group, biphenyl group, terphenyl group, naphthyl group, fluorenyl group, spiro-fluorenyl group, benzofluorenyl group, dibenzofluorenyl group, phenanthrenyl group, anthracenyl group, pyrenyl group, chrysenyl group, pyrenyl group Dinyl group, pyrazinyl group, pyrimidinyl group, pyridazinyl group, quinolinyl group, isoquinolinyl group, quinoxalinyl group, quinazolinyl group, carbazolyl group, triazinyl group;
Substituted with at least one selected from C ₁ -C ₂₀ alkyl groups, phenyl group, biphenyl group, terphenyl group, naphthyl group, fluorenyl group, spiro-fluorenyl group, benzofluorenyl group, dibenzofluorenyl group, phenanthrenyl group, Anthracenyl group, pyrenyl group, chrysenyl group, pyridinyl group, pyrazinyl group, pyrimidinyl group, pyridazinyl group, quinolinyl group, isoquinolinyl group, quinoxalinyl group, quinazolinyl group, carbazolyl group, Triazinyl group; and
-Si(Q ₁ )(Q ₂ )(Q ₃ ), -N(Q ₁ )(Q ₂ ), -B(Q ₁ )(Q ₂ ), -C(=O)(Q ₁ ), -S (=O) ₂ (Q ₁ ) and -P(=O)(Q ₁ )(Q ₂ );
Q ₁ to Q ₃ are each independently selected from a C ₁ -C ₂₀ alkyl group, a phenyl group, a biphenyl group, a terphenyl group, and a naphthyl group, in an organic light-emitting device. delete According to paragraph 1,
Ar ₂₁₁ and Ar ₂₁₂ are anthracene, an organic light emitting device. According to paragraph 1,
L ₁₀₁ , L ₂₁₁ to L ₂₁₃ , L ₂₂₁ , L ₂₃₁ to L ₂₃₄ and L ₂₄₁ are each independently a phenylene group, a naphthylene group, a fluorenylene group, a phenanthrenylene group, an anthracenylene group, and a triphenylenylene group. , pyrrolylene group, thiophenylene group, furanylene group, pyridinylene group, pyrazinylene group, pyrimidinylene group, indolylene group, quinollinylene group, isoquinolinyl group, benzoquinolinyl group, naphthyridinyl. Len group, quinoxalinylene group, quinazolinylene group, cinolinylene group, carbazoylene group, phenantridinylene group, benzoimidazolylene group, benzofuranylene group, benzothiophenylene group, triazonylene group, dibenzofuranyl Len group and dibenzothiophenylene group; and
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, fluorenyl group, spiro-fluorenyl group, benzofluorenyl group, dibenzofluorenyl group, phenanthrenyl group, anthracenyl group, pyrenyl group, chrysenyl group Substituted with at least one selected from group, pyridinyl group, pyrazinyl group, pyrimidinyl group, pyridazinyl group, quinolinyl group, isoquinolinyl group, quinoxalinyl group, quinazolinyl group, carbazolyl group and triazinyl group, Phenylene group, naphthylene group, fluorenylene group, phenanthrenylene group, anthracenylene group, triphenylenylene group, pyrrolylene group, thiophenylene group, furanylene group, pyridinylene group, pyrazinylene group, pyrimidinylene group , indolynylene group, quinolinylene group, isoquinolinylene group, benzoquinolinylene group, naphthyridinylene group, quinoxalinylene group, quinazolinylene group, cynolinylene group, carbazolinylene group, phenanthridinylene group. , benzoimidazolylene group, benzofuranylene group, benzothiophenylene group, triazonylene group, dibenzofuranylene group and dibenzothiophenylene group; An organic light emitting device selected from among. According to paragraph 1,
L ₁₀₁ , L ₂₁₁ to L ₂₁₃ , L ₂₂₁ , L ₂₃₁ to L ₂₃₄ and L ₂₄₁ are each independently an organic light emitting device represented by any one of the following formulas 3-1 to 3-31:

In formulas 3-1 to 3-31,
Y ₃₁ is selected from C(R ₃₃ )(R ₃₄ ), N(R ₃₃ ), O and S;
R ₃₁ to R ₃₄ 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, fluorenyl group, spiro-fluorenyl group, benzofluorenyl group, dibenzofluorenyl group, phenanthrenyl group, Anthracenyl group, pyrenyl group, chrysenyl group, pyridinyl group, pyrazinyl group, pyrimidinyl group, pyridazinyl group, quinolinyl group, isoquinolinyl group, quinoxalinyl group, quinazolinyl group, carbazolyl group and is selected from triazinyl group;
a31 is selected from 1, 2, 3 and 4;
a32 is selected from 1, 2, 3, 4, 5 and 6;
a33 is selected from 1, 2, 3, 4, 5, 6, 7 and 8;
a34 is selected from 1, 2, 3, 4 and 5;
a35 is selected from 1, 2 and 3;
* and *' are, independently of each other, binding sites with neighboring atoms. According to paragraph 1,
a101, a211 to a213, a221, a231 to a234, and a241 are each independently selected from 0 and 1, an organic light emitting device. According to paragraph 1,
R ₁₀₁ and R ₁₀₂ are independently of each other, phenyl group, biphenyl group, terphenyl group, naphthyl group, fluorenyl group, phenanthrenyl group, anthracenyl group, triphenylenyl group, pyrrolyl group, thiophenyl group, furanyl group, pyridinyl group , pyrazinyl group, pyrimidinyl group, quinolinyl group, isoquinolinyl group, carbazolyl group, naphthyridinyl group, quinoxalinyl group, quinazolinyl group, cynolinyl group, phenanthridinyl group, acridinyl group, phenanthrolinyl group. , phenazinyl group, benzofuranyl group, benzothiophenyl group, triazinyl group, dibenzofuranyl group, dibenzothiophenyl group and dibenzosilolyl group;
Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C ₁ -C ₂₀ alkyl group, C ₁ -C ₂₀ alkoxy group , phenyl group, biphenyl group, terphenyl group, naphthyl group, fluorenyl group, phenanthrenyl group, anthracenyl group, triphenylenyl group, pyrrolyl group, thiophenyl group, furanyl group, pyridinyl group, pyrazinyl group, pyrimidinyl group, Quinolinyl group, isoquinolinyl group, carbazolyl group, naphthyridinyl group, quinoxalinyl group, quinazolinyl group, cynolinyl group, phenanthridinyl group, acridinyl group, phenanthrolinyl group, phenazinyl group, benzofuranyl group, Substituted with at least one selected from benzothiophenyl group, triazinyl group, dibenzofuranyl group, dibenzothiophenyl group, dibenzosilolyl group and -Si (Q ₃₁ ) (Q ₃₂ ) (Q ₃₃ ), phenyl group, biphenyl group, ter Phenyl group, naphthyl group, fluorenyl group, phenanthrenyl group, anthracenyl group, triphenylenyl group, pyrrolyl group, thiophenyl group, furanyl group, pyridinyl group, pyrazinyl group, pyrimidinyl group, quinolinyl group, isoquinoli Nyl group, carbazolyl group, naphthyridinyl group, quinoxalinyl group, quinazolinyl group, cinolinyl group, phenanthridinyl group, acridinyl group, phenanthrolinyl group, phenazinyl group, benzofuranyl group, benzothiophenyl group, triazinyl group , dibenzofuranyl group, dibenzothiophenyl group and dibenzosilolyl group; and
Deuterium, -F, -Cl, -Br, -I, substituted with at least one selected from cyano group and nitro group, substituted with at least one selected from C ₁ -C ₂₀ alkyl group, phenyl group, biphenyl group, terphenyl group, naphthyl group, Fluorenyl group, phenanthrenyl group, anthracenyl group, triphenylenyl group, pyrrolyl group, thiophenyl group, furanyl group, pyridinyl group, pyrazinyl group, pyrimidinyl group, quinolinyl group, isoquinolinyl group, carbazolyl group , naphthyridinyl group, quinoxalinyl group, quinazolinyl group, cynolinyl group, phenanthridinyl group, acridinyl group, phenanthrolinyl group, phenazinyl group, benzofuranyl group, benzothiophenyl group, triazinyl group, dibenzofuranyl group. , dibenzothiophenyl group and dibenzosilolyl group; is selected from;
Q ₃₁ to Q ₃₃ are each independently selected from a C ₁ -C ₂₀ alkyl group, a C ₆ -C ₆₀ aryl group, a biphenyl group, and a terphenyl group. According to paragraph 1,
R ₁₀₁ and R ₁₀₂ are each independently selected from the following formulas 5-1 to 5-32:

In formulas 5-1 to 5-32,
Y ₅₁ is selected from C(R ₅₃ )(R ₅₄ ), Si(R ₅₃ )(R ₅₄ ), N(R ₅₃ ), O and S;
R ₅₁ to R ₅₄ 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, -CD ₃ , -CF ₃ , C ₁ -C ₂₀ alkoxy group, phenyl group, biphenyl group, terphenyl group, naphthyl group, fluorenyl group, phenanthrenyl group, pyridinyl group, pyrazinyl group, pyrimidi Nyl group, quinolinyl group, isoquinolinyl group, naphthyridinyl group, quinoxalinyl group, quinazolinyl group, cynolinyl group, triazinyl group, dibenzofuranyl group, dibenzothiophenyl group, dibenzosilolyl group and -Si(Q ₃₁ )(Q ₃₂ )(Q ₃₃ ); is selected from;
Q ₃₁ to Q ₃₃ are each independently a methyl group, an ethyl group, a tert-butyl group, a phenyl group, a biphenyl group, a terphenyl group, and a naphthyl group; is selected from;
a51 is selected from 1, 2, 3, 4 and 5;
a52 is selected from 1, 2, 3, 4, 5, 6 and 7;
a53 is selected from 1, 2, 3, 4, 5 and 6;
a54 is selected from 1, 2 and 3;
a55 is selected from 1, 2, 3 and 4;
* is a bonding site with a neighboring atom. According to paragraph 1,
R ₂₃₁ to R ₂₃₄ and R ₂₄₁ are independently of each other, phenyl group, biphenyl group, terphenyl group, naphthyl group, fluorenyl group, benzofluorenyl group, dibenzofluorenyl group, phenalenyl group, phenanthrenyl group, anthracenyl group , triphenylenyl group, pyrenyl group, chrysenyl 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 , phenyl group, biphenyl group, terphenyl group, naphthyl group, fluorenyl group, benzofluorenyl group, dibenzofluorenyl group, phenalenyl group, phenanthrenyl group, anthracenyl group, substituted with at least one selected from phenyl group and naphthyl group, triphenylenyl group, pyrenyl group, chrysenyl group, carbazolyl group, dibenzofuranyl group and dibenzothiophenyl group; An organic light emitting device selected from among. According to paragraph 1,
R ₂₃₁ to R ₂₃₄ and R ₂₄₁ are each independently selected from the following formulas 7-1 to 7-16:

In formulas 7-1 to 7-16,
Y ₇₁ is selected from C(R ₇₃ )(R ₇₄ ), N(R ₇₃ ), O and S;
R ₇₁ to R ₇₄ 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 and naphthyl group;
a71 is selected from 1, 2, 3, 4 and 5;
a72 is selected from 1, 2, 3, 4, 5, 6 and 7;
a73 is selected from 1, 2, 3, 4, 5 and 6;
a74 is selected from 1, 2 and 3;
a75 is selected from 1, 2, 3 and 4;
* is a bonding site with a neighboring atom. According to paragraph 1,
R ₂₁₁ , R ₂₁₂ , R ₂₂₁ , R ₂₂₂ , R ₂₃₅ to R ₂₃₈ and R ₂₄₂ are each independently hydrogen, deuterium, -F, -Cl, -Br, -I, C ₁ -C ₂₀ alkyl group, C ₂ -C ₂₀ alkenyl group, C ₂ -C ₂₀ alkynyl group and C ₁ -C ₂₀ alkoxy group;
Deuterium, -F, -Cl, -Br, -I, phenoxy group, phenylthio group, phenyl group, biphenyl group, terphenyl group, naphthyl group, -N(Q ₃₁ )(Q ₃₂ ), -Si(Q ₃₁ )( Q ₃₂ ) (Q ₃₃ ) and -B (Q ₃₁ ) (Q ₃₂ ), substituted with at least one selected from C ₁ -C ₂₀ alkyl group, C ₂ -C ₂₀ alkenyl group, C ₂ -C ₂₀ alkynyl group and C ₁ -C ₂₀ alkoxy group;
Phenoxy group, phenylthio group, phenyl group, biphenyl group, terphenyl group, pentalenyl group, indenyl group, naphthyl group, azulenyl group, heptalenyl group, indacenyl group, acenaphthyl group, fluorenyl group, spiro-fluore Nyl 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, pyrrolyl group, thiophenyl group, furanyl group, imidazolyl group, pyrazolyl group, thiazolyl group, iso Thiazolyl group, oxazolyl group, isoxazolyl group, pyridinyl group, pyrazinyl group, pyrimidinyl group, pyridazinyl group, isoindoleyl group, indolyl group, indazolyl group, purinyl group, quinolinyl group, isoquinoli Nyl group, carbazolyl group, benzoquinolinyl group, phthalazinyl group, naphthyridinyl group, quinoxalinyl group, benzoquinoxalinyl group, quinazolinyl group, benzoquinazolinyl group, cynolinyl group, phenanthridinyl group, acridinyl group , phenanthrolinyl group, phenazinyl group, benzimidazolyl group, benzofuranyl group, benzothiophenyl group, isobenzothiazolyl group, benzoxazolyl group, isobenzooxazolyl group, triazolyl group, tetrazolyl group, oxadiazole diyl group, triazinyl group, dibenzofuranyl group, dibenzothiophenyl group, dibenzosilolyl group, benzocarbazolyl group, dibenzocarbazolyl group, thiadiazolyl group, imidazopyridinyl group and imidazopyrimidinyl group;
Deuterium, -F, -Cl, -Br, -I, C ₁ -C ₂₀ alkyl group, C ₁ -C ₂₀ alkoxy group, phenoxy group, phenylthio group, phenyl group, biphenyl group, terphenyl group, pentalenyl group, indenyl group , naphthyl group, azulenyl group, hepthalenyl group, indacenyl group, acenaphthyl group, fluorenyl group, spiro-fluorenyl 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, co Ronenyl group, ovalenyl group, pyrrolyl group, thiophenyl group, furanyl group, imidazolyl group, pyrazolyl group, thiazolyl group, isothiazolyl group, oxazolyl group, isoxazolyl group, pyridinyl group, pyrazinyl group, pyrazolyl group Midinyl group, pyridazinyl group, isoindoleyl group, indolyl group, indazolyl group, purinyl group, quinolinyl group, isoquinolinyl group, carbazolyl group, benzoquinolinyl group, phthalazinyl group, naphthyridinyl group, quinoc Salinyl group, benzoquinoxalinyl group, quinazolinyl group, benzoquinazolinyl group, cynolinyl group, phenanthridinyl group, acridinyl group, phenanthrolinyl group, phenazinyl group, benzimidazolyl group, benzofuranyl group, benzothiophenyl group , isobenzothiazolyl group, benzoxazolyl group, isobenzooxazolyl group, triazolyl group, tetrazolyl group, oxadiazolyl group, triazinyl group, dibenzofuranyl group, dibenzothiophenyl group, dibenzosilolyl group, Benzocarbazolyl group, dibenzocarbazolyl group, thiadiazolyl group, imidazopyridinyl group, imidazopyrimidinyl group, -N(Q ₃₁ )(Q ₃₂ ), -Si(Q ₃₁ )(Q ₃₂ )( Q ₃₃ ) and -B (Q ₃₁ ) (Q ₃₂ ), substituted with at least one of phenoxy group, phenylthio group, phenyl group, biphenyl group, terphenyl group, pentalenyl group, indenyl group, naphthyl group, azulenyl group, hep Talenyl group, indacenyl group, acenaphthyl group, fluorenyl group, spiro-fluorenyl 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, pyrrolyl group , thiophenyl group, furanyl group, imidazolyl group, pyrazolyl group, thiazolyl group, isothiazolyl group, oxazolyl group, isoxazolyl group, pyridinyl group, pyrazinyl group, pyrimidinyl group, pyridazinyl group, iso Indoleyl group, indoleyl group, indazolyl group, purinyl group, quinolinyl group, isoquinolinyl group, carbazolyl group, benzoquinolinyl group, phthalazinyl group, naphthyridinyl group, quinoxalinyl group, benzoquinoxalinyl group, quina Zolinyl group, benzoquinazolinyl group, cinolinyl group, phenanthridinyl group, acridinyl group, phenanthrolinyl group, phenazinyl group, benzimidazolyl group, benzofuranyl group, benzothiophenyl group, isobenzothiazolyl group, benzoxa Zolyl group, isobenzooxazolyl group, triazolyl group, tetrazolyl group, oxadiazolyl group, triazinyl group, dibenzofuranyl group, dibenzothiophenyl group, dibenzosilolyl group, benzocarbazolyl group, dibenzocarbazole diary group, thiadiazolyl group, imidazopyridinyl group and imidazopyrimidinyl group; and
is selected from -Si(Q ₁ )(Q ₂ )(Q ₃ ), -N(Q ₁ )(Q ₂ ) and -B(Q ₁ )(Q ₂ );
Q ₁ to Q ₃ and Q ₃₁ to Q ₃₃ are each independently selected from a C ₁ -C ₂₀ alkyl group, a phenyl group, a biphenyl group, a terphenyl group, and a naphthyl group. According to paragraph 1,
R ₂₁₁ , R ₂₁₂ , R ₂₂₁ , R ₂₂₂ , R ₂₃₅ to R ₂₃₈ and R ₂₄₂ are independently of each other hydrogen, deuterium, -F, -Cl, -Br, -I, methyl group, ethyl group, n-propyl group, iso-propyl group, n-butyl group, iso-butyl group, sec-butyl group, tert-butyl group, methoxy group, ethoxy group, iso-propoxy group, n-butoxy group, iso-butoxy group, sec-butoxy group group, tert-butoxy group, -Si(CH ₃ ) ₃ , -Si(Ph) ₃ , -N(Ph ₂ ) ₂ , -B(Ph) ₂ and selected from the following formulas 9-1 to 9-15, Organic light emitting device:

In formulas 9-1 to 9-15,
Y ₉₁ is selected from C(R ₉₆ )(R ₉₇ ), N(R ₉₆ ), O and S;
R ₉₁ to R ₉₃ are independently selected from hydrogen, deuterium, -F, -Cl, -Br, -I, phenoxy group, phenylthio group, phenyl group, biphenyl group, terphenyl group, and naphthyl group;
R ₉₄ to R ₉₇ are each independently selected from hydrogen, deuterium, -F, -Cl, -Br, -I, C ₁ -C ₂₀ alkyl group, C ₁ -C ₂₀ alkoxy group, phenoxy group, phenylthio group, phenyl group, Biphenyl group, terphenyl group, naphthyl group, fluorenyl group, benzofluorenyl group, dibenzofluorenyl group, phenalenyl group, phenanthrenyl group, anthracenyl group, triphenylenyl group, pyrenyl group, chrysenyl group, carboxylic acid selected from zolyl group, dibenzofuranyl group and dibenzothiophenyl group;
a91 is selected from 1, 2, 3, 4 and 5;
a92 is selected from 1, 2, 3, 4, 5, 6 and 7;
a93 is selected from 1, 2, 3, 4, 5 and 6;
a94 is selected from 1, 2 and 3;
a95 is selected from 1, 2, 3 and 4;
* is a bonding site with a neighboring atom. According to paragraph 1,
The first compound is an amine-based compound represented by the following formula 1-1:
<Formula 1-1>

In Formula 1-1,
R ₂ and R ₈ are each independently a group represented by the above formula (A). According to paragraph 1,
The first compound is any one of the following compounds 1 to 112, an amine-based compound:













According to paragraph 1,
The second compound is an organic light-emitting device represented by any one of the following formulas 2-11 to 2-16:
<Formula 2-11>

<Formula 2-12>

<Formula 2-13>

<Formula 2-14>

<Formula 2-15>

<Formula 2-16>

In Formulas 2-11 to 2-16,
Ar ₂₄₁ , L ₂₁₁ to L ₂₁₃ , L ₂₂₁ , L ₂₃₁ to L ₂₃₄ , L ₂₄₁ , a211 to a213, a221, a231 to a234, a241, R ₂₃₁ to R ₂₃₄ , R ₂₄₁ , b231 to b234, b241, R ₂₁₁ , R ₂₁₂ , R ₂₂₁ , R ₂₂₂ , R ₂₄₂ , b211, b212, b221, b222, b242, n211 and n212 are as defined in Formulas 2-1 to 2-4;
R ₂₄₃ to R ₂₄₇ are each independently the same as the definition of R ₂₄₁ in Formula 2-3;
b243 to b247 are each independently the same as the definition of b241 in Formula 2-4;
L ₂₂₂ is defined the same as L ₂₂₁ in Formula 2-2; a222 is defined the same as a221 in Formula 2-2; R ₂₂₃ is defined the same as R ₂₂₁ in Formula 2-2; b223 is defined the same as b221 in Formula 2-2;
L ₂₄₂ to L ₂₄₆ are independently defined the same as L ₂₄₁ in Formula 2-4; a242 to a246 are independently defined the same as a241 in Formula 2-4. According to paragraph 1,
The second compound is an organic light-emitting device represented by any one of the following formulas 2-21 to 2-29:
<Formula 2-21>

<Formula 2-22>

<Formula 2-23>

<Formula 2-24>

<Formula 2-25>

<Formula 2-26>

<Formula 2-27>

<Formula 2-28>

<Formula 2-29>

In Formulas 2-21 to 2-29,
L ₂₁₁ to L ₂₁₃ , L ₂₂₁ , L ₂₃₁ to L ₂₃₄ , L ₂₄₁ , a211 to a213, a221, a231 to a234, R 231 to R ₂₃₄ , R ₂₄₁ , _b231 to b234, R ₂₁₁ , R ₂₁₂ , R ₂₂₁ , R ₂₂₂ , R ₂₄₂ , b211, b212, b221, b242, n211 and n212 are as defined in Formulas 2-1 to 2-4 above;
R ₂₂₄ is defined the same as R ₂₂₂ in Formula 2-2;
L ₂₂₂ is defined the same as L ₂₂₁ in Formula 2-2; a222 is defined the same as a221 in Formula 2-2; R ₂₂₃ is defined the same as R ₂₂₁ in Formula 2-2; b223 is defined the same as b221 in Formula 2-2;
L ₂₄₂ to L ₂₄₆ are independently defined the same as L ₂₄₁ in Formula 2-4; R ₂₄₃ to R ₂₄₇ are independently defined the same as R ₂₄₁ in Formula 2-4; R ₂₄₈ and R ₂₄₉ are independently defined the same as R ₂₄₂ in Formula 2-4; b248 and b249 are independently defined the same as b242 in Formula 2-4. According to paragraph 1,
The second compound is selected from the following compounds H-1 to H-68, an organic light emitting device:

According to paragraph 2,
The first compound is a dopant, and the second compound is a host.

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