Organic light-emitting device and device including same

Abstract

To provide an organic light-emitting element and an apparatus including the same.SOLUTION: An organic light-emitting element includes a first electrode 110, a second electrode 190, and an organic layer 150 that is interposed between the first electrode and the second electrode. The organic layer includes a light-emitting layer, and the light-emitting layer includes a specific first compound, second compound, and third compound different from each other.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to organic light emitting devices and devices including same. [Background technology]

[0002] An organic light emitting device is a self-emitting device that has advantages such as a wide viewing angle, excellent contrast, a short response time, excellent brightness, driving voltage and response speed characteristics, and the ability to be multi-colored.

[0003] The organic light emitting device may have a structure in which a first electrode is disposed on 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. 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 the excitons change from an excited state to a ground state. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Korean Patent Publication No. 10-2016-0034528 Summary of the Invention [Problem to be solved by the invention]

[0005] The problem to be solved by the present invention is to provide an organic light-emitting device and a device including the same. [Means for solving the problem]

[0006] According to one aspect of the present invention, there is provided an organic light emitting device comprising a first electrode, a second electrode, and an organic layer interposed between the first electrode and the second electrode, the organic layer comprising an emitting layer, the emitting layer comprising a first compound, a second compound, and a third compound, the first compound being represented by Chemical Formula 1 below, the second compound being represented by Chemical Formula 2 below, and the third compound being represented by Chemical Formula 3 below, and the first compound, the second compound, and the third compound being different from one another: [ka] (chemical formula 1) [ka] (Chemical formula 2) [ka] (Chemical formula 3) In the above Chemical Formulas 1 to 3, A11 is a group represented by the following chemical formula 10: [ka] (Chemical formula 10) In the above Chemical Formula 10, R 101 ~R 108 are each independently hydrogen, deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, C 1 -C 10 Alkyl group, C 2 -C 10 Alkenyl group, C 2 -C 10 Alkynyl group, C 1 -C 10 Alkoxy group, C 3 -C 10 Cycloalkyl groups, heterocycloalkyl groups having 1-10 ring atoms, C 3 -C 15 Cycloalkenyl groups, heterocycloalkenyl groups having 1-15 ring atoms, C 6 -C 15Aryl group, C 6 -C 15 Aryloxy group, C 6 -C 15 Arylthio groups, heteroaryl groups having 1 to 15 ring atoms, heteroaryloxy groups having 1 to 15 ring atoms, heteroarylthio groups having 1 to 15 ring atoms, monovalent non-aromatic condensed polycyclic groups having 1 to 15 ring atoms, monovalent non-aromatic condensed polycyclic groups having 1 to 15 ring atoms, -C(Q 1 )(Q 2 )(Q 3 ), -Si(Q 1 )(Q 2 )(Q 3 ), -B(Q 1 )(Q 2 ), -N(Q 1 )(Q 2 ), -P(Q 1 )(Q 2 ), -C(=O)(Q 1 ), -S(=O)(Q 1 ), -S(=O) 2 (Q 1 ), -P(=O)(Q 1 )(Q 2 ), and -P(=S)(Q 1 )(Q 2 ), k11 and k12 are independently selected from 1, 2, 3 and 4; R 11 stands for hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C 1 -C 10 Alkyl group, C 2 -C 10 Alkenyl group, C 2 -C 10 Alkynyl group, C 1 -C 10 Alkoxy group, C 3 -C 10 Cycloalkyl groups, heterocycloalkyl groups having 1-10 ring atoms, C 3 -C 15 Cycloalkenyl groups, heterocycloalkenyl groups having 1-15 ring atoms, C 6 -C15 Aryl group, C 6 -C 15 Aryloxy group, C 6 -C 15 Arylthio groups, heteroaryl groups having 1 to 15 ring atoms, heteroaryloxy groups having 1 to 15 ring atoms, heteroarylthio groups having 1 to 15 ring atoms, monovalent non-aromatic condensed polycyclic groups having 1 to 15 ring atoms, monovalent non-aromatic condensed polycyclic groups having 1 to 15 ring atoms, -C(Q 1 )(Q 2 )(Q 3 ), -Si(Q 1 )(Q 2 )(Q 3 ), -B(Q 1 )(Q 2 ), -N(Q 1 )(Q 2 ), -P(Q 1 )(Q 2 ), -C(=O)(Q 1 ), -S(=O)(Q 1 ), -S(=O) 2 (Q 1 ), -P(=O)(Q 1 )(Q 2 ), and -P(=S)(Q 1 )(Q 2 ), L 21 ~L 23 are each independently deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, C 1 -C 10 Alkyl group, C 2 -C 10 Alkenyl group, C 2 -C 10 Alkynyl group, C 1 -C 10 Alkoxy group, C 3 -C 10 Cycloalkyl groups, heterocycloalkyl groups having 1-10 ring atoms, C 3 -C 15 Cycloalkenyl groups, heterocycloalkenyl groups having 1-15 ring atoms, C 6 -C 15 Aryl group, C6 -C 15 Aryloxy group, C 6 -C 15 Arylthio groups, heteroaryl groups having 1 to 15 ring atoms, heteroaryloxy groups having 1 to 15 ring atoms, heteroarylthio groups having 1 to 15 ring atoms, monovalent non-aromatic condensed polycyclic groups having 1 to 15 ring atoms, monovalent non-aromatic condensed polycyclic groups having 1 to 15 ring atoms, -C(Q 31 )(Q 32 )(Q 33 ), -Si(Q 31 )(Q 32 )(Q 33 ), -B(Q 31 )(Q 32 ), -N(Q 31 )(Q 32 ), -P(Q 31 )(Q 32 ), -C(=O)(Q 1 ), -S(=O)(Q 31 ), -S(=O) 2 (Q 31 ), -P(=O)(Q 31 )(Q 32 ), and -P(=S)(Q 31 )(Q 32 ) or a divalent C 5 -C 15 is selected from the group consisting of a carbocyclic group and a divalent heterocyclic group having 1 to 15 ring atoms; a21 to a23 are each independently selected from 0, 1, and 2; R 21 ~R 23 are each independently deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, C 1 -C 10 Alkyl group, C 2 -C 10 Alkenyl group, C 2 -C 10 Alkynyl group, C 1 -C 10 Alkoxy group, C 3 -C 10Cycloalkyl groups, heterocycloalkyl groups having 1-10 ring atoms, C3-C15 cycloalkenyl groups, heterocycloalkenyl groups having 1-15 ring atoms, C 6 -C 15 Aryl group, C 6 -C 15 Aryloxy group, C 6 -C 15 Arylthio groups, heteroaryl groups having 1 to 15 ring atoms, heteroaryloxy groups having 1 to 15 ring atoms, heteroarylthio groups having 1 to 15 ring atoms, monovalent non-aromatic condensed polycyclic groups having 1 to 15 ring atoms, monovalent non-aromatic condensed polycyclic groups having 1 to 15 ring atoms, -C(Q 31 )(Q 32 )(Q 33 ), -Si(Q 31 )(Q 32 )(Q 33 ), -B(Q 31 )(Q 32 ), -N(Q 31 )(Q 32 ), -P(Q 31 )(Q 32 ), -C(=O)(Q 1 ), -S(=O)(Q 31 ), -S(=O) 2 (Q 31 ), -P(=O)(Q 31 )(Q 32 ), and -P(=S)(Q 31 )(Q 32 ) or unsubstituted with at least one substituent selected from 3 -C 15 Cycloalkenyl groups, heterocycloalkenyl groups having 1-15 ring atoms, C 6 -C 15 Aryl group, C 6 -C 15 Aryloxy group, C 6 -C 15 arylthio groups, heteroaryl groups having 1 to 15 ring atoms, heteroaryloxy groups having 1 to 15 ring atoms, heteroarylthio groups having 1 to 15 ring atoms, monovalent non-aromatic condensed polycyclic groups having 1 to 15 ring atoms, and monovalent non-aromatic condensed polycyclic heterocyclic groups having 1 to 15 ring atoms; and -C(Q 1 )(Q 2 )(Q 3 ), -Si(Q 1 )(Q 2 )(Q 3 ), -B(Q 1 )(Q 2 ), -N(Q 1 )(Q 2 ), -P(Q 1 )(Q 2 ), -C(=O)(Q 1 ), -S(=O)(Q 1 ), -S(=O) 2 (Q1), -P(=O)(Q 1 )(Q 2 ) and -P(=S)(Q 1 )(Q 2 ), X 31 is N(R 39 ) and C(R 39 )(R 40 ), R 31 ~R 40 are independent of each other, *-(L 31 ) a31 -A 31 Groups represented by the formula (I), hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C 1 -C 10 Alkyl group, C 2 -C 10 Alkenyl group, C 2 -C 10 Alkynyl group, C 1 -C 10 Alkoxy group, C 3 -C 10 Cycloalkyl groups, heterocycloalkyl groups having 1-10 ring atoms, C 3 -C 15 Cycloalkenyl groups, heterocycloalkenyl groups having 1-15 ring atoms, C 6 -C 15 Aryl group, C 6 -C 15 Aryloxy group, C 6 -C 15Arylthio groups, heteroaryl groups having 1 to 15 ring atoms, heteroaryloxy groups having 1 to 15 ring atoms, heteroarylthio groups having 1 to 15 ring atoms, monovalent non-aromatic condensed polycyclic groups having 1 to 15 ring atoms, monovalent non-aromatic condensed polycyclic groups having 1 to 15 ring atoms, -C(Q 1 )(Q 2 )(Q 3 ), -Si(Q 1 )(Q 2 )(Q 3 ), -B(Q 1 )(Q 2 ), -N(Q 1 )(Q 2 ), -P(Q 1 )(Q 2 ), -C(=O)(Q 1 ), -S(=O)(Q 1 ), -S(=O) 2 (Q 1 ), -P(=O)(Q 1 )(Q 2 ), and -P(=S)(Q 1 )(Q 2 ), but R 31 ~R 39 And at least one of them is *-(L 31 ) a31 -A 31 is a group represented by L 31 stands for deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C 1 -C 10 Alkyl group, C 2 -C 10 Alkenyl group, C 2 -C 10 Alkynyl group, C 1 -C 10 Alkoxy group, C 3 -C 10 Cycloalkyl groups, heterocycloalkyl groups having 1-10 ring atoms, C 3 -C 15 Cycloalkenyl groups, heterocycloalkenyl groups having 1-15 ring atoms, C 6 -C 15 Aryl group, C 6-C 15 Aryloxy group, C 6 -C 15 Arylthio groups, heteroaryl groups having 1 to 15 ring atoms, heteroaryloxy groups having 1 to 15 ring atoms, heteroarylthio groups having 1 to 15 ring atoms, monovalent non-aromatic condensed polycyclic groups having 1 to 15 ring atoms, monovalent non-aromatic condensed polycyclic groups having 1 to 15 ring atoms, -C(Q 31 )(Q 32 )(Q 33 ), -Si(Q 31 )(Q 32 )(Q 33 ), -B(Q 31 )(Q 32 ), -N(Q 31 )(Q 32 ), -P(Q 31 )(Q 32 ), -C(=O)(Q 1 ), -S(=O)(Q 31 ), -S(=O) 2 (Q 31 ), -P(=O)(Q 31 )(Q 32 ), and -P(=S)(Q 31 )(Q 32 phenylene radicals which may or may not be substituted with at least one substituent selected from a31 is selected from 1, 2 and 3; A 31 stands for deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C 1 -C 10 Alkyl group, C 2 -C 10 Alkenyl group, C 2 -C 10 Alkynyl group, C 1 -C 10 Alkoxy group, C 3 -C 10 Cycloalkyl groups, heterocycloalkyl groups having 1-10 ring atoms, C 3 -C 15 Cycloalkenyl groups, heterocycloalkenyl groups having 1-15 ring atoms, C 6 -C15 Aryl group, C 6 -C 15 Aryloxy group, C 6 -C 15 Arylthio groups, heteroaryl groups having 1 to 15 ring atoms, heteroaryloxy groups having 1 to 15 ring atoms, heteroarylthio groups having 1 to 15 ring atoms, monovalent non-aromatic condensed polycyclic groups having 1 to 15 ring atoms, monovalent non-aromatic condensed polycyclic groups having 1 to 15 ring atoms, -C(Q 31 )(Q 32 )(Q 33 ), -Si(Q 31 )(Q 32 )(Q 33 ), -B(Q 31 )(Q 32 ), -N(Q 31 )(Q 32 ), -P(Q 31 )(Q 32 ), -C(=O)(Q 1 ), -S(=O)(Q 31 ), -S(=O) 2 (Q 31 ), -P(=O)(Q 31 )(Q 32 ), and -P(=S)(Q 31 )(Q 32 ) selected from the group consisting of a carbazolyl group and a fluorenyl group, each of which may or may not be substituted with at least one substituent selected from the group consisting of Q 1 ~Q 3 , and Q 31 ~Q 33 are independently hydrogen, deuterium, -F, -Cl, -Br, -I, C 1 -C 10 Alkyl group, C 2 -C 10 Alkenyl group, C 2 -C 10 Alkynyl group, C 1 -C 10 Alkoxy group, C 3 -C 10Cycloalkyl groups, heterocycloalkyl groups having 1-10 ring atoms, C3-C15 cycloalkenyl groups, heterocycloalkenyl groups having 1-15 ring atoms, C6-C15 aryl groups, C6-C15 aryloxy groups, C 6 -C 15 is selected from an arylthio group, a heteroaryl group having 1 to 15 ring atoms, a heteroaryloxy group having 1 to 15 ring atoms, a heteroarylthio group having 1 to 15 ring atoms, a monovalent non-aromatic condensed polycyclic group having 1 to 15 ring atoms, a monovalent non-aromatic condensed polycyclic group having 1 to 15 ring atoms, a biphenylyl group, and a biphenylyl group; * indicates a bonding site with an adjacent atom.

[0007] According to another aspect of the present invention, there is provided a device including a thin film transistor including a source electrode, a drain electrode, and an active layer, and the organic light emitting device described above, wherein a first electrode of the organic light emitting device is electrically connected to one of the source electrode and the drain electrode of the thin film transistor. Effect of the Invention

[0008] The organic light emitting devices of the present invention can have high efficiency and long life. [Brief description of the drawings]

[0009] [Figure 1] 1 is a schematic diagram illustrating a structure of an organic light emitting device according to an embodiment of the present invention. [Diagram 2] 2 is a schematic diagram illustrating a structure of an organic light emitting device according to another embodiment of the present invention. [Diagram 3] 1 is a schematic diagram illustrating a structure of an organic light emitting device according to yet another embodiment of the present invention. [Figure 4] 1 is a schematic diagram illustrating a structure of an organic light emitting device according to yet another embodiment of the present invention. [Diagram 5] 1 is a graph showing efficiency versus luminance in Examples 1 to 5. [Figure 6] 1 is a graph showing efficiency versus luminance in Comparative Examples 1 to 5. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] The present invention can be modified in various ways and can have various embodiments, but specific embodiments are illustrated in the drawings and will be described in detail by detailed description. The advantages, features, and methods of achieving the present invention will become clear by referring to the embodiments described in detail below together with the drawings. However, the present invention is not limited to the embodiments disclosed below, and may be embodied in various forms.

[0011] Hereinafter, an embodiment of the present invention will be described in detail with reference to the attached drawings. When describing with reference to the drawings, the same or corresponding components are denoted by the same reference numerals, and duplicate descriptions thereof will be omitted.

[0012] In the following embodiments, the singular expression includes the plural expression unless otherwise clearly indicated in the context.

[0013] In the following embodiments, the terms "comprise" or "have" mean the presence of features or components described in the specification, and do not preclude the possibility that one or more other features or components may be added.

[0014] In the following embodiments, when a part such as a film, region, or component is said to be on or above another part, this does not only mean that it is directly on top of the other part, but also means that there is another film, region, component, etc. in between.

[0015] In the drawings, the size of components may be exaggerated or reduced for the convenience of explanation. For example, the size and thickness of each component shown in the drawings are arbitrarily shown for the convenience of explanation, and the present invention is not necessarily limited to what is shown in the drawings.

[0016] In the present specification, the term "organic layer" refers to any single and / or multiple layers interposed between a first electrode and a second electrode in an organic light-emitting device. The material contained in the "organic layer" is not limited to organic materials.

[0017] The organic light-emitting device includes a first electrode, a second electrode, and an organic layer interposed between the first electrode and the second electrode. The organic layer includes an emitting layer, and the emitting layer includes a first compound, a second compound, and a third compound. The first compound is represented by Chemical Formula 1 below. The second compound is represented by Chemical Formula 2 below. The third compound is represented by Chemical Formula 3 below. The first compound, the second compound, and the third compound are different from each other. [ka] (chemical formula 1) [ka] (Chemical formula 2) [ka] (Chemical formula 3) In chemical formulas 1-3, A 11 is a group represented by the following chemical formula 10. [ka] (Chemical formula 10) In Chemical Formula 10, R 101 ~R 108 are each independently hydrogen, deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, C 1 -C 10 Alkyl group, C 2 -C 10 Alkenyl group, C 2 -C 10 Alkynyl group, C 1 -C 10 Alkoxy group, C 3 -C 10Cycloalkyl groups, heterocycloalkyl groups having 1-10 ring atoms, C 3 -C 15 Cycloalkenyl groups, heterocycloalkenyl groups having 1-15 ring atoms, C 6 -C 15 Aryl group, C 6 -C 15 Aryloxy group, C 6 -C 15 Arylthio groups, heteroaryl groups having 1 to 15 ring atoms, heteroaryloxy groups having 1 to 15 ring atoms, heteroarylthio groups having 1 to 15 ring atoms, monovalent non-aromatic condensed polycyclic groups having 1 to 15 ring atoms, monovalent non-aromatic condensed heteropolycyclic groups having 1 to 15 ring atoms, -C(Q 1 )(Q 2 )(Q 3 ), -Si(Q 1 )(Q 2 )(Q 3 ), -B(Q 1 )(Q 2 ), -N(Q 1 )(Q 2 ), -P(Q 1 )(Q 2 ), -C(=O)(Q 1 ), -S(=O)(Q 1 ), -S(=O) 2 (Q 1 ), -P(=O)(Q 1 )(Q 2 ), and -P(= S )(Q 1 )(Q 2 ) is selected.

[0018] k11 and k12 are each independently selected from 1, 2, 3 and 4.

[0019] R 11 stands for hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C 1-C 10 Alkyl group, C 2 -C 10 Alkenyl group, C 2 -C 10 Alkynyl group, C 1 -C 10 Alkoxy group, C 3 -C 10 Cycloalkyl groups, heterocycloalkyl groups having 1-10 ring atoms, C 3 -C 15 Cycloalkenyl groups, heterocycloalkenyl groups having 1-15 ring atoms, C 6 -C 15 Aryl group, C 6 -C 15 Aryloxy group, C 6 -C 15 Arylthio groups, heteroaryl groups having 1 to 15 ring atoms, heteroaryloxy groups having 1 to 15 ring atoms, heteroarylthio groups having 1 to 15 ring atoms, monovalent non-aromatic condensed polycyclic groups having 1 to 15 ring atoms, monovalent non-aromatic condensed polycyclic groups having 1 to 15 ring atoms, -C(Q 1 )(Q 2 )(Q 3 ), -Si(Q 1 )(Q 2 )(Q 3 ), -B(Q 1 )(Q 2 ), -N(Q 1 )(Q 2 ), -P(Q 1 )(Q 2 ), -C(=O)(Q 1 ), -S(=O)(Q 1 ), -S(=O) 2 (Q 1 ), -P(=O)(Q 1 )(Q 2 ), and -P(=S)(Q 1 )(Q 2 ) is selected.

[0020] L 21 ~L 23 are each independently deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, C1 -C 10 Alkyl group, C 2 -C 10 Alkenyl group, C 2 -C 10 Alkynyl group, C 1 -C 10 Alkoxy group, C 3 -C 10 Cycloalkyl groups, heterocycloalkyl groups having 1-10 ring atoms, C 3 -C 15 Cycloalkenyl groups, heterocycloalkenyl groups having 1-15 ring atoms, C 6 -C 15 Aryl group, C 6 -C 15 Aryloxy group, C 6 -C 15 Arylthio groups, heteroaryl groups having 1 to 15 ring atoms, heteroaryloxy groups having 1 to 15 ring atoms, heteroarylthio groups having 1 to 15 ring atoms, monovalent non-aromatic condensed polycyclic groups having 1 to 15 ring atoms, monovalent non-aromatic condensed polycyclic groups having 1 to 15 ring atoms, -C(Q 31 )(Q 32 )(Q 33 ), -Si(Q 31 )(Q 32 )(Q 33 ), -B(Q 31 )(Q 32 ), -N(Q 31 )(Q 32 ), -P(Q 31 )(Q 32 ), -C(=O)(Q 1 ), -S(=O)(Q 31 ), -S(=O) 2 (Q 31 ), -P(=O)(Q 31 )(Q 32 ), and -P(=S)(Q 31 )(Q 32 ) or a divalent C 5 -C 15 It is selected from the group consisting of a carbocyclic group and a divalent heterocyclic group having 1 to 15 ring atoms.

[0021] a21 to a23 are each independently selected from the group consisting of 0, 1, and 2.

[0022] R 21 ~R 23 are each independently deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, C 1 -C 10 Alkyl group, C 2 -C 10 Alkenyl group, C 2 -C 10 Alkynyl group, C 1 -C 10 Alkoxy group, C 3 -C 10 Cycloalkyl groups, heterocycloalkyl groups having 1-10 ring atoms, C 3 -C 15 Cycloalkenyl groups, heterocycloalkenyl groups having 1-15 ring atoms, C 6 -C 15 Aryl group, C 6 -C 15 Aryloxy group, C 6 -C 15 Arylthio groups, heteroaryl groups having 1 to 15 ring atoms, heteroaryloxy groups having 1 to 15 ring atoms, heteroarylthio groups having 1 to 15 ring atoms, monovalent non-aromatic condensed polycyclic groups having 1 to 15 ring atoms, monovalent non-aromatic condensed polycyclic groups having 1 to 15 ring atoms, -C(Q 31 )(Q 32 )(Q 33 ), -Si(Q 31 )(Q 32 )(Q 33 ), -B(Q 31 )(Q 32 ), -N(Q 31 )(Q 32 ), -P(Q 31 )(Q 32 ), -C(=O)(Q 1 ), -S(=O)(Q 31 ), -S(=O) 2 (Q 31 ), -P(=O)(Q 31 )(Q 32 ), and -P(=S)(Q31 )(Q 32 ) or unsubstituted with at least one substituent selected from 3 -C 15 Cycloalkenyl groups, heterocycloalkenyl groups having 1-15 ring atoms, C 6 -C 15 Aryl group, C 6 -C 15 Aryloxy group, C 6 -C 15 arylthio groups, heteroaryl groups having 1 to 15 ring atoms, heteroaryloxy groups having 1 to 15 ring atoms, heteroarylthio groups having 1 to 15 ring atoms, monovalent non-aromatic condensed polycyclic groups having 1 to 15 ring atoms, and monovalent non-aromatic condensed polycyclic heterocyclic groups having 1 to 15 ring atoms; and -C(Q 1 )(Q 2 )(Q 3 ), -Si(Q 1 )(Q 2 )(Q 3 ), -B(Q 1 )(Q 2 ), -N(Q 1 )(Q 2 ), -P(Q 1 )(Q 2 ), -C(=O)(Q 1 ), -S(=O)(Q 1 ), -S(=O) 2 (Q 1 ), -P(=O)(Q 1 )(Q 2 ) and -P(=S)(Q 1 )(Q 2 ) is selected.

[0023] X 31 is N(R 39 ) and C(R 39 )(R 40 ) is selected.

[0024] R 31 ~R 40 are independent of each other, *-(L 31 ) a31 -A 31Groups represented by the formula (I), hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C 1 -C 10 Alkyl group, C 2 -C 10 Alkenyl group, C 2 -C 10 Alkynyl group, C 1 -C 10 Alkoxy group, C 3 -C 10 Cycloalkyl groups, heterocycloalkyl groups having 1-10 ring atoms, C 3 -C 15 Cycloalkenyl groups, heterocycloalkenyl groups having 1-15 ring atoms, C 6 -C 15 Aryl group, C 6 -C 15 Aryloxy group, C 6 -C 15 Arylthio groups, heteroaryl groups having 1 to 15 ring atoms, heteroaryloxy groups having 1 to 15 ring atoms, heteroarylthio groups having 1 to 15 ring atoms, monovalent non-aromatic condensed polycyclic groups having 1 to 15 ring atoms, monovalent non-aromatic condensed polycyclic groups having 1 to 15 ring atoms, -C(Q 1 )(Q 2 )(Q 3 ), -Si(Q 1 )(Q 2 )(Q 3 ), -B(Q 1 )(Q 2 ), -N(Q 1 )(Q 2 ), -P(Q 1 )(Q 2 ), -C(=O)(Q 1 ), -S(=O)(Q 1 ), -S(=O) 2 (Q 1 ), -P(=O)(Q 1 )(Q 2 ), and -P(=S)(Q 1 )(Q 2 ), but R 31 ~R 39 And at least one of them is *-(L 31 )a31 -A 31 It is a group represented by the following formula:

[0025] L 31 stands for deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C 1 -C 10 Alkyl group, C 2 -C 10 Alkenyl group, C 2 -C 10 Alkynyl group, C 1 -C 10 Alkoxy group, C 3 -C 10 Cycloalkyl groups, heterocycloalkyl groups having 1-10 ring atoms, C 3 -C 15 Cycloalkenyl groups, heterocycloalkenyl groups having 1-15 ring atoms, C 6 -C 15 Aryl group, C 6 -C 15 Aryloxy group, C 6 -C 15 Arylthio groups, heteroaryl groups having 1 to 15 ring atoms, heteroaryloxy groups having 1 to 15 ring atoms, heteroarylthio groups having 1 to 15 ring atoms, monovalent non-aromatic condensed polycyclic groups having 1 to 15 ring atoms, monovalent non-aromatic condensed polycyclic groups having 1 to 15 ring atoms, -C(Q 31 )(Q 32 )(Q 33 ), -Si(Q 31 )(Q 32 )(Q 33 ), -B(Q 31 )(Q 32 ), -N(Q 31 )(Q 32 ), -P(Q 31 )(Q 32 ), -C(=O)(Q 1 ), -S(=O)(Q 31 ), -S(=O) 2 (Q 31 ), -P(=O)(Q 31 )(Q 32 ), and -P(=S)(Q 31 )(Q32 ) is an unsubstituted or substituted phenylene group.

[0026] a31 is selected from 1, 2 and 3.

[0027] A 31 stands for deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C 1 -C 10 Alkyl group, C 2 -C 10 Alkenyl group, C 2 -C 10 Alkynyl group, C 1 -C 10 Alkoxy group, C 3 -C 10 Cycloalkyl groups, heterocycloalkyl groups having 1-10 ring atoms, C 3 -C 15 Cycloalkenyl groups, heterocycloalkenyl groups having 1-15 ring atoms, C 6 -C 15 Aryl group, C 6 -C 15 Aryloxy group, C 6 -C 15 Arylthio groups, heteroaryl groups having 1 to 15 ring atoms, heteroaryloxy groups having 1 to 15 ring atoms, heteroarylthio groups having 1 to 15 ring atoms, monovalent non-aromatic condensed polycyclic groups having 1 to 15 ring atoms, monovalent non-aromatic condensed polycyclic groups having 1 to 15 ring atoms, -C(Q 31 )(Q 32 )(Q 33 ), -Si(Q 31 )(Q 32 )(Q 33 ), -B(Q 31 )(Q 32 ), -N(Q 31 )(Q 32 ), -P(Q 31 )(Q 32 ), -C(=O)(Q 1 ), -S(=O)(Q 31 ), -S(=O) 2 (Q31 ), -P(=O)(Q 31 )(Q 32 ), and -P(=S)(Q 31 )(Q 32 ) is selected from the group consisting of a carbazolyl group and a fluorenyl group, each of which may be substituted or unsubstituted with at least one substituent selected from the group consisting of aryl, aryl, aryl and aryl.

[0028] Q 1 ~Q 3 , and Q 31 ~Q 33 are independently hydrogen, deuterium, -F, -Cl, -Br, -I, C 1 -C 10 Alkyl group, C 2 -C 10 Alkenyl group, C 2 -C 10 Alkynyl group, C 1 -C 10 Alkoxy group, C 3 -C 10 Cycloalkyl groups, heterocycloalkyl groups having 1-10 ring atoms, C 3 -C 15 Cycloalkenyl groups, heterocycloalkenyl groups having 1-15 ring atoms, C 6 -C 15 Aryl group, C 6 -C 15 Aryloxy group, C 6 -C 15 It is selected from an arylthio group, a heteroaryl group having 1 to 15 ring atoms, a heteroaryloxy group having 1 to 15 ring atoms, a heteroarylthio group having 1 to 15 ring atoms, a monovalent non-aromatic condensed polycyclic group having 1 to 15 ring atoms, a monovalent non-aromatic heterocondensed polycyclic group having 1 to 15 ring atoms, a biphenylyl group, and a biphenylyl group.

[0029] * indicates a bonding site with an adjacent atom.

[0030] For example, in Formula 1, k11 and k12 may be selected from 1 and 2, independently of each other.

[0031] For example, in Formula 1, the sum of k11 and k12 may be selected from 3 and 4.

[0032] Specifically, the first compound is represented by any one of the following chemical formulas 1-1 to 1-58. [ka] JPEG0007655701000010.jpg48136 JPEG0007655701000011.jpg49139 JPEG0007655701000012.jpg51141 JPEG0007655701000013.jpg49139

[0033] In chemical formulas 1-1 to 1-58, A 11a and A 11b are A in Chemical Formula 1, 11 See the definition of R 11a , R 11b and R 11c are R in Chemical Formula 1, 11 See definition of.

[0034] For example, in formula 1, A 11 is also represented by any one of the following chemical formulas 10-1 and 10-2: [ka] In chemical formulas 10-1 and 10-2, R 103 and R 106 are each independently deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, C 1 -C 10 Alkyl group, C 2 -C 10Alkenyl group, C 2 -C 10 Alkynyl group, C 1 -C 10 Alkoxy group, C 3 -C 10 Cycloalkyl groups, heterocycloalkyl groups having 1-10 ring atoms, C 3 -C 15 Cycloalkenyl groups, heterocycloalkenyl groups having 1-15 ring atoms, C 6 -C 15 Aryl group, C 6 -C 15 Aryloxy group, C 6 -C 15 Arylthio groups, heteroaryl groups having 1 to 15 ring atoms, heteroaryloxy groups having 1 to 15 ring atoms, heteroarylthio groups having 1 to 15 ring atoms, monovalent non-aromatic condensed polycyclic groups having 1 to 15 ring atoms, monovalent non-aromatic condensed polycyclic groups having 1 to 15 ring atoms, -C(Q 1 )(Q 2 )(Q 3 ), -Si(Q 1 )(Q 2 )(Q 3 ), -B(Q 1 )(Q 2 ), -N(Q 1 )(Q 2 ), -P(Q 1 )(Q 2 ), -C(=O)(Q 1 ), -S(=O)(Q 1 ), -S(=O) 2 (Q 1 ), -P(=O)(Q 1 )(Q 2 ), and -P(=S)(Q 1 )(Q 2 ) is selected.

[0035] Q 1 ~Q 3 are independently hydrogen, deuterium, -F, -Cl, -Br, -I, C 1 -C 10 Alkyl group, C 2 -C 10 Alkenyl group, C 2 -C10 Alkynyl group, C 1 -C 10 Alkoxy group, C 3 -C 10 Cycloalkyl groups, heterocycloalkyl groups having 1-10 ring atoms, C 3 -C 15 Cycloalkenyl groups, heterocycloalkenyl groups having 1-15 ring atoms, C 6 -C 15 Aryl group, C 6 -C 15 Aryloxy group, C 6 -C 15 C 6 -C 15 It is selected from an arylthio group, a heteroaryl group having 1 to 15 ring atoms, a heteroaryloxy group having 1 to 15 ring atoms, a heteroarylthio group having 1 to 15 ring atoms, a monovalent non-aromatic condensed polycyclic group having 1 to 15 ring atoms, a monovalent non-aromatic heterocondensed polycyclic group having 1 to 15 ring atoms, a biphenylyl group, and a biphenylyl group.

[0036] * indicates a bonding site with an adjacent atom.

[0037] For example, in formulas 10, 10-1 and 10-2, R 103 and R 106 may be selected independently from among -F, a cyano group, a pyridinyl group, a pyrazinyl group, a pyridazinyl group, a pyrimidinyl group, a triazinyl group, a quinolinyl group, an isoquinolinyl group, a benzoquinolinyl group, a benzoisoquinolinyl group, a phthalazinyl group, a naphthyridinyl group, a quinoxalinyl group, a quinazolinyl group, a benzoquinoxalinyl group, a benzoquinazolinyl group, an azafluorenyl group, an azacarbazolyl group, an azadibenzofuranyl group, an azadibenzothiophenyl group, a diazafluorenyl group, a diazacarbazolyl group, a diazadibenzofuranyl group, and a diazadibenzothiophenyl group.

[0038] For example, in formula 1, R 11 stands for hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C1 -C 10 Alkyl group, C 3 -C 15 Cycloalkenyl groups, heterocycloalkenyl groups having 1-15 ring atoms, C 6 -C 15 It may be selected from an aryl group, a heteroaryl group having 1 to 15 ring atoms, a monovalent non-aromatic condensed polycyclic group having 1 to 15 ring atoms, and a monovalent non-aromatic condensed polycyclic heterocyclic group having 1 to 15 ring atoms.

[0039] As another example, in Formula 1, R 11 may be hydrogen.

[0040] For example, in formula 2, L 21 ~L 23 are each independently deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, C 1 -C 10 Alkyl group, C 1 -C 10and substituted or unsubstituted with at least one substituent selected from an alkoxy group, a phenyl group, a biphenylyl group, a naphthyl group, a phenalenyl group, an anthracenyl group, a phenanthrenyl group, a pyridinyl group, a pyrazinyl group, a pyridazinyl group, a pyrimidinyl group, a triazinyl group, a quinolinyl group, an isoquinolinyl group, a benzoquinolinyl group, a benzoisoquinolinyl group, a phthalazinyl group, a naphthyridinyl group, a quinoxalinyl group, a quinazolinyl group, a benzoquinoxalinyl group, a benzoquinazolinyl group, a fluorenyl group, a carbazolyl group, a dibenzofuranyl group, a dibenzothiophenyl group, an azafluorenyl group, an azacarbazolyl group, an azadibenzofuranyl group, an azadibenzothiophenyl group, a diazafluorenyl group, a diazacarbazolyl group, a diazadibenzofuranyl group, and a diazadibenzothiophenyl group. phenylene group, naphthylene group, phenalenylene group, anthracenylene group, phenanthrenylene group, pyridinylene group, pyrimidinylene group, pyrazinylene group, pyridazinylene group, triazinylene group, quinolinylene group, isoquinolinylene group, benzoquinolinylene group, benzoisoquinolinylene group, phthalazinylene group, naphthyridinylene group, quinoxalinylene group, quinazolinylene group, benzoquinoxa The quinazolinylene group may be selected from the group consisting of a quinylene group, a benzoquinazolinylene group, a fluorenylene group, a carbazolylene group, a dibenzofuranylene group, a dibenzothiophenylene group, an azafluorenylene group, an azacarbazolylene group, an azadibenzofuranylene group, an azadibenzothiophenylene group, a diazafluorenylene group, a diazacarbazolylene group, a diazadibenzofuranylene group and a diazadibenzothiophenylene group.

[0041] For example, in Chemical Formula 2, a21 to a23 may be selected from 0 and 1, independently of one another.

[0042] In chemical formula 2, if a21 to a23 are 0, then (L 21 ) a21 , (L 22 ) a22 and (L 23 ) a23 is a single bond.

[0043] For example, in formula 2, R 21 ~R 23 are each independently deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, C 1 -C 10 Alkyl group, C 1 -C 10 Alkoxy group, phenyl group, biphenylyl group, naphthyl group, phenalenyl group, anthracenyl group, phenanthrenyl group, pyridinyl group, pyrazinyl group, pyridazinyl group, pyrimidinyl group, triazinyl group, quinolinyl group, isoquinolinyl group, benzoquinolinyl group, benzoisoquinolinyl group, phthalazinyl group, naphthyridinyl group, quinoxalinyl group, quinazolinyl group, benzoquinoxalinyl group, benzoquinazolinyl group, fluorenyl group, carbazolyl group, dibenzofuranyl group, dibenzothiophenyl group, azafluorenyl group, azacarbazolyl group, azadibenzofuranyl group, azadibenzothiophenyl group, diazafluorenyl group, diazacarbazolyl group, diazadibenzofuranyl group, diazadibenzothiophenyl group, -C(Q 31 )(Q 32 )(Q 33 ), -Si(Q 31 )(Q 32 )(Q 33 ), -B(Q 31 )(Q 32 ), -N(Q 31 )(Q 32 ), -P(Q 31 )(Q 32 ), -C(=O)(Q 1 ), -S(=O)(Q 31 ), -S(=O) 2 (Q 31 ), -P(=O)(Q 31 )(Q 32 ) and -P(=S)(Q 31 )(Q 32a phenyl group, a biphenylyl group, a naphthyl group, a phenalenyl group, an anthracenyl group, a phenanthrenyl group, a pyridinyl group, a pyrazinyl group, a pyridazinyl group, a pyrimidinyl group, a triazinyl group, a quinolinyl group, an isoquinolinyl group, a benzoquinolinyl group, a benzoisoquinolinyl group, a phthalazinyl group, a naphthyridinyl group, a quinoxalinyl group, a quinazolinyl group, a benzoquinoxalinyl group, a benzoquinazolinyl group, a fluorenyl group, a carbazolyl group, a dibenzofuranyl group, a dibenzothiophenyl group, an azafluorenyl group, an azacarbazolyl group, an azadibenzofuranyl group, an azadibenzothiophenyl group, a diazafluorenyl group, a diazacarbazolyl group, a diazadibenzofuranyl group, and a diazadibenzothiophenyl group; and -C(Q 1 )(Q 2 )(Q 3 ), -Si(Q 1 )(Q 2 )(Q 3 ), -B(Q 1 )(Q 2 ), -N(Q 1 )(Q 2 ), -P(Q 1 )(Q 2 ), -C(=O)(Q 1 ), -S(=O)(Q 1 ), -S(=O) 2 (Q 1 ), -P(=O)(Q 1 )(Q 2 ) and -P(=S)(Q 1 )(Q 2 ) is selected.

[0044] Q 1 ~Q 3 , and Q 31 ~Q 33may be selected, independently from one another, from a phenyl group, a biphenylyl group, a naphthyl group, a phenalenyl group, an anthracenyl group, a phenanthrenyl group, a pyridinyl group, a pyrazinyl group, a pyridazinyl group, a pyrimidinyl group, a triazinyl group, a quinolinyl group, an isoquinolinyl group, a benzoquinolinyl group, a benzoisoquinolinyl group, a phthalazinyl group, a naphthyridinyl group, a quinoxalinyl group, a quinazolinyl group, a benzoquinoxalinyl group, a benzoquinazolinyl group, a fluorenyl group, a carbazolyl group, a dibenzofuranyl group, a dibenzothiophenyl group, an azafluorenyl group, an azacarbazolyl group, an azadibenzofuranyl group, an azadibenzothiophenyl group, a diazafluorenyl group, a diazacarbazolyl group, a diazadibenzofuranyl group, and a diazadibenzothiophenyl group.

[0045] As another example, in formula 2, R 21 ~R 23 are, independently of each other, deuterium, C 1 -C 10 Alkyl group, phenyl group, biphenylyl group, naphthyl group, phenalenyl group, anthracenyl group, phenanthrenyl group, fluorenyl group, carbazolyl group, dibenzofuranyl group, dibenzothiophenyl group, -C(Q 31 )(Q 32 )(Q 33 ) and -Si(Q 31 )(Q 32 )(Q 33 phenyl, biphenylyl, naphthyl, phenalenyl, anthracenyl, phenanthrenyl, fluorenyl, carbazolyl, dibenzofuranyl and dibenzothiophenyl groups, each of which may be substituted with at least one substituent selected from the group consisting of phenyl, biphenylyl, naphthyl, phenalenyl, anthracenyl, phenanthrenyl, fluorenyl, carbazolyl, dibenzofuranyl and dibenzothiophenyl groups; and -C(Q 1 )(Q 2 )(Q 3 ) and -Si(Q 1 )(Q 2 )(Q 3 ); is selected from among

[0046] Q 1 ~Q 3 , and Q 31 ~Q33 may be independently selected from the group consisting of phenyl, biphenylyl, naphthyl, phenalenyl, anthracenyl, phenanthrenyl, fluorenyl, carbazolyl, dibenzofuranyl and dibenzothiophenyl.

[0047] Specifically, in formula 2, R 21 ~R 23 At least one of the following formula 7-1, the following formula 7-2, -C(Q 1 )(Q 2 )(Q 3 ), and -Si(Q 1 )(Q 2 )(Q 3 ), but is not limited to them. [ka] (Compound 7-1) [ka] (Compound 7-2)

[0048] In chemical formulas 7-1 and 7-2, Y 71 is a phenyl group, a biphenylyl group, a naphthyl group, a phenalenyl group, an anthracenyl group, a phenanthrenyl group, a fluorenyl group, a carbazolyl group, a dibenzofuranyl group, a dibenzothiophenyl group, -C(Q 31 )(Q 32 )(Q 33 ) and -Si(Q 31 )(Q 32 )(Q 33 ) is selected.

[0049] R 71 ~R 74 are independently hydrogen, deuterium, and C 1 -C 10Alkyl group, phenyl group, biphenylyl group, naphthyl group, phenalenyl group, anthracenyl group, phenanthrenyl group, fluorenyl group, carbazolyl group, dibenzofuranyl group, dibenzothiophenyl group, -C(Q 31 )(Q 32 )(Q 33 ) and -Si(Q 31 )(Q 32 )(Q 33 ) is selected.

[0050] Q 1 ~Q 3 , and Q 31 ~Q 33 are each independently selected from the group consisting of a phenyl group, a biphenylyl group, a naphthyl group, a phenalenyl group, an anthracenyl group, a phenanthrenyl group, a fluorenyl group, a carbazolyl group, a dibenzofuranyl group, and a dibenzothiophenyl group.

[0051] * indicates a bonding site with an adjacent atom.

[0052] For example, in formula 3, X 31 is N(R 39 ) is also acceptable.

[0053] For example, in formula 3, R 31 ~R 40 are independent of each other, *-(L 31 ) a31 -A 31 Groups represented by the formula (I), hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C 1 -C 10 Alkyl group, C 1 -C 10 is selected from the group consisting of an alkoxy group, a phenyl group, a biphenylyl group, a naphthyl group, a phenalenyl group, an anthracenyl group, a phenanthrenyl group, a fluorenyl group, a carbazolyl group, a dibenzofuranyl group, and a dibenzothiophenyl group, 31 ~R 39 And at least one of them is *-(L 31 ) a31 -A31 It may also be a group represented by the following formula:

[0054] For example, in formula 3, L 31 may be a phenylenyl group which is unsubstituted or substituted with at least one substituent selected from a phenyl group, a biphenylyl group, a naphthyl group, a phenalenyl group, an anthracenyl group, a phenanthrenyl group, a fluorenyl group, a carbazolyl group, a dibenzofuranyl group, and a dibenzothiophenyl group.

[0055] For example, in formula 3, a31 may be selected from 1 and 2.

[0056] For example, in formula 3, A 31 may be a carbazolyl group which is unsubstituted or substituted with at least one substituent selected from a phenyl group, a biphenylyl group, a naphthyl group, a phenalenyl group, an anthracenyl group, a phenanthrenyl group, a fluorenyl group, a carbazolyl group, a dibenzofuranyl group, and a dibenzothiophenyl group.

[0057] As another example, in formula 3, A 31 can also be represented by any one of the following chemical formulas 8-1 to 8-5. [ka]

[0058] Chemical formulas 8-1 to 8-5: R 81 ~R 89 are each independently selected from hydrogen, a phenyl group, a biphenylyl group, a naphthyl group, a phenalenyl group, an anthracenyl group, a phenanthrenyl group, a fluorenyl group, a carbazolyl group, a dibenzofuranyl group, and a dibenzothiophenyl group.

[0059] * indicates a bonding site with an adjacent atom.

[0060] Specifically, the third compound is represented by any one of the following chemical formulas 3-1 to 3-5. [ka] Chemical formulas 3-1 to 3-5: L 31 , a31, A 31 , and R 31 ~R 39 Each refers to the definition in Chemical Formula 3.

[0061] For example, in chemical formulas 3-1 to 3-5, A 31 can also be represented by any one of the following chemical formulas 8-1 to 8-5. [ka]

[0062] Chemical formulas 8-1 to 8-5: R 81 ~R 89 are each independently selected from hydrogen, a phenyl group, a biphenylyl group, a naphthyl group, a phenalenyl group, an anthracenyl group, a phenanthrenyl group, a fluorenyl group, a carbazolyl group, a dibenzofuranyl group, and a dibenzothiophenyl group.

[0063] * indicates a bonding site with an adjacent atom.

[0064] In one embodiment, the first compound may be selected from Group I below.

[0065] <Group I> [ka] JPEG0007655701000021.jpg51136 JPEG0007655701000022.jpg58136 JPEG0007655701000023.jpg58139 JPEG0007655701000024.jpg66139

[0066] In one embodiment, the second compound may be selected from Group II: <Group II> [ka] JPEG0007655701000026.jpg38143 JPEG0007655701000027.jpg40139 JPEG0007655701000028.jpg38140 JPEG0007655701000029.jpg40132

[0067] In one embodiment, the third compound may be selected from Group III: <Group III> [ka] JPEG0007655701000031.jpg42137 JPEG0007655701000032.jpg45141

[0068] The first compound may be a delayed fluorescence emitter. Specifically, the first compound may be a thermally activated delayed fluorescence (TADF) emitter.

[0069] The first compound may have a maximum emission wavelength in the range of 450 nm to 550 nm, but is not limited thereto.

[0070] Specifically, the first compound in the light-emitting layer does not directly participate in the formation of excitons, but can receive energy from the formed excitons and emit blue delayed fluorescence.

[0071] The first compound may satisfy the following condition 1: <Condition 1> △E ST (C1)≦0.3 eV In condition 1, △E ST (C1) is the lowest excited singlet energy level (E S1 (C1)) and the lowest excited triplet energy level (E T1 (C1)).

[0072] Here, E S1 (C1) and E T1 (C1) is also evaluated using DFT methods in the Gaussian program, each of which is structure-optimized at the B3LYP / 6-31G(d,p) level.

[0073] If condition 1 is satisfied, a sufficiently high reverse intersystem crossing (RISC) efficiency can be achieved even at room temperature.

[0074] Since the organic light emitting device has an energy level at which fluorescence is emitted from the first compound, an organic light emitting device with high color purity can be provided.

[0075] In addition, since the first compound includes a relatively strong donor and a relatively strong acceptor, the HOMO (highest occupied molecular orbital) and the LUMO (lowest unoccupied molecular orbital) of Formula 1 are relatively well separated. As a result, the degree of separation of the HOMO and the LUMO can be strengthened, and the spin orbit coupling (SOC) is increased, thereby improving the RISC speed. Therefore, the efficiency and / or life of the organic light emitting device including the first compound is improved.

[0076] Generally, if electrons are not smoothly injected from the electron transport region to the light emitting layer, charges are accumulated at the interface between the light emitting layer and the electron transport region, causing the interface to deteriorate. Conversely, if holes are not smoothly injected from the hole transport region to the light emitting layer, charges are accumulated at the interface between the light emitting layer and the hole transport region, causing the interface to deteriorate, resulting in a shortened life span of the organic light emitting device.

[0077] The second compound is a compound that necessarily contains an electron transporting moiety and is therefore easily used to control the electron transporting properties of an organic light emitting device. The third compound is a compound that does not contain an electron transporting moiety and is therefore easily used to control the hole transporting properties of an organic light emitting device. Through this, the charge balance in the light emitting layer of the organic light emitting device can be optimized.

[0078] Specifically, when the second compound and the third compound have an appropriate energy level for exciplex formation and have an intermolecular interaction, stable energy transfer can be achieved from the second compound and the third compound to the first compound, thereby improving the efficiency of an organic light-emitting device including the first compound to the third compound.

[0079] The second compound is a substituent having a large steric hindrance, specifically, the chemical formula 7-1, 7-2, -C(Q 1 )(Q 2 )(Q 3 ) and -Si(Q 1 )(Q2 )(Q 3 ) because they always contain a substituent represented by the formula (I), the lowest excited triplet energy level is relatively high.

[0080] In addition, since a31 in the third compound is selected from the group consisting of 1, 2 and 3, the lowest excited triplet energy level of the third compound is relatively high.

[0081] The organic light-emitting element can emit delayed fluorescence in the range of 450 nm or more and 550 nm or less, but is not limited thereto.

[0082] In the light-emitting layer, the second compound may be present in an amount of 10 to 90% by weight based on the total weight of the light-emitting layer, but is not limited thereto.

[0083] The content of the third compound in the light-emitting layer may be from 10% by weight to 90% by weight based on the total weight of the light-emitting layer, but is not limited thereto.

[0084] The content of the first compound in the light-emitting layer may be 0.5% by weight to 5% by weight based on the total weight of the light-emitting layer, but is not limited thereto.

[0085] The content of the first compound may be in the range of 0.01 parts by weight or more and 30 parts by weight or less per 100 parts by weight of the total content of the second compound and the third compound, but is not limited thereto.

[0086] When the first compound, the second compound, and the third compound satisfy the above-mentioned ranges, an organic light emitting device with improved efficiency and lifetime and improved roll-off can be provided.

[0087] In one embodiment, the light-emitting layer also comprises, but is not limited to, a first compound, a second compound, and a third compound.

[0088] In one embodiment, the first electrode is an anode, the second electrode is a cathode, and the organic layer further comprises a hole transport region disposed between the first electrode and the light-emitting layer and / or an electron transport region disposed between the light-emitting layer and the second electrode, where the hole transport region may comprise a hole injection layer, a hole transport layer, a light-emitting auxiliary layer, an electron blocking layer, or any combination thereof, and the electron transport region may comprise, but is not limited to, a hole blocking layer, an electron transport layer, an electron injection layer, or any combination thereof.

[0089] [Explanation of Figure 1] 1 is a schematic 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.

[0090] Hereinafter, a structure and a method for manufacturing an organic light emitting device 10 according to an embodiment of the present invention will be described with reference to FIG.

[0091] [First electrode 110] 1, a substrate is additionally disposed below the first electrode 110 or above the second electrode 190. As the substrate, a glass substrate or a plastic substrate having excellent mechanical strength, thermal stability, transparency, surface smoothness, ease of handling, and waterproofness can be used.

[0092] The first electrode 110 may be formed by providing a first electrode material on the substrate using, for example, a deposition method or a sputtering method. When the first electrode 110 is an anode, the first electrode material may be selected from materials having a high work function so that holes can be easily injected.

[0093] The first electrode 110 may be a reflective electrode, a semi-transparent electrode, or a transparent electrode. To form the first electrode 110 as a transparent electrode, the material for the first electrode is selected from indium tin oxide (ITO), indium zinc oxide (IZO), tin oxide (SnO 2Alternatively, to form the first electrode 110, which is a semi-transmissive electrode or a reflective electrode, the material for the first electrode may be selected from, but is not limited to, magnesium (Mg), silver (Ag), aluminum (Al), aluminum-lithium (Al-Li), calcium (Ca), magnesium-indium (Mg-In), magnesium-silver (Mg-Ag), and any combination thereof.

[0094] The first electrode 110 may have a single-layer structure, which is a single layer, or a multi-layer structure having multiple layers, for example, but not limited to, a three-layer structure of ITO / Ag / ITO.

[0095] [Organic layer 150] The organic layer 150 is disposed on the first electrode 110. The organic layer 150 includes an emitting layer.

[0096] The organic layer 150 may further include a hole transport region interposed between the first electrode 110 and the light emitting layer, and an electron transport region interposed between the light emitting layer and the second electrode 190.

[0097] [Hole transport region in organic layer 150] The hole transport region can have i) a monolayer structure consisting of a single layer of a single material, ii) a monolayer structure consisting of a single layer of multiple different materials, or iii) a multilayer structure having multiple layers consisting of multiple different materials.

[0098] The hole transport region may include at least one layer selected from a hole injection layer (HIL), a hole transport layer (HTL), a light-emitting auxiliary layer, and an electron blocking layer (EBL).

[0099] For example, the hole transport region may have a single layer structure consisting of a plurality of single layers made of different materials, or may have a multi-layer structure of a hole injection layer / hole transport layer, a hole injection layer / hole transport layer / 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, which are stacked in this order from the first electrode 110, but is not limited thereto.

[0100] The hole transport region may include at least one selected from m-MTDATA, TDATA, 2-TNATA, NPB (NPD), β-NPB, TPD, spiro-TPD, spiro-NPB, methylated-NPB, TAPC, HMTPD, 4,4',4"-tris(N-carbazolyl)triphenylamine (TCTA), polyaniline / dodecylbenzenesulfonic acid (PANI / DBSA), poly(3,4-ethylenedioxythiophene) / poly(4-styrenesulfonate) (PEDOT / PSS), polyaniline / camphorsulfonic acid (PANI / CSA), polyaniline / poly(4-styrenesulfonate) (PANI / PSS), a compound represented by the following formula 201, and a compound represented by the following formula 202. [ka] JPEG0007655701000034.jpg95142 JPEG0007655701000035.jpg2773(Compound 201) JPEG0007655701000036.jpg2699(Compound 202)

[0101] In chemical formulas 201 and 202, L 201 ~L 204 are, independently of each other, substituted or unsubstituted C 3 -C 10Cycloalkylene groups, substituted or unsubstituted C 1 -C 10 Heterocycloalkylene groups, substituted or unsubstituted C 3 -C 10 Cycloalkenylene groups, substituted or unsubstituted C 1 -C 10 Heterocycloalkenylene groups, substituted or unsubstituted C 6 -C 60 Arylene groups, substituted or unsubstituted C 1 -C 60 It is selected from among a heteroarylene group, a substituted or unsubstituted divalent non-aromatic fused polycyclic group, and a substituted or unsubstituted divalent non-aromatic fused polycyclic heterocyclic group.

[0102] L 205 *-O-*', *-S-*', *-N(Q 201 )-*', replaced or unreplaced C 1 -C 20 Alkylene groups, substituted or unsubstituted C 2 -C 20 Alkenylene groups, substituted or unsubstituted C 3 -C 10 Cycloalkylene groups, substituted or unsubstituted C 1 -C 10 Heterocycloalkylene groups, substituted or unsubstituted C 3 -C 10 Cycloalkenylene groups, substituted or unsubstituted C 1 -C 10 Heterocycloalkenylene groups, substituted or unsubstituted C 6 -C 60 Arylene groups, substituted or unsubstituted C 1 -C 60 It is selected from among a heteroarylene group, a substituted or unsubstituted divalent non-aromatic fused polycyclic group, and a substituted or unsubstituted divalent non-aromatic fused polycyclic heterocyclic group.

[0103] xa1 to xa4 are each independently selected from integers of 0 to 3.

[0104] xa5 is selected from the integers of 1 to 10.

[0105] R 201 ~R 204 , and Q 201 are, independently of each other, substituted or unsubstituted C 3 -C 10 Cycloalkyl groups, substituted or unsubstituted C 1 -C 10 Heterocycloalkyl groups, substituted or unsubstituted C 3 -C 10 Cycloalkenyl groups, substituted or unsubstituted C 1 -C 10 Heterocycloalkenyl groups, substituted or unsubstituted C 6 -C 60 Aryl groups, substituted or unsubstituted C 6 -C 60 Aryloxy groups, substituted or unsubstituted C 6 -C 60 Arylthio groups, substituted or unsubstituted C 1 -C 60 It may be selected from among a heteroaryl group, a substituted or unsubstituted monovalent non-aromatic fused polycyclic group, and a substituted or unsubstituted monovalent non-aromatic fused polycyclic heterocyclic group.

[0106] For example, in formula 202, R 201 and R 202 are optionally linked to each other via a single bond, a dimethyl-methylene group or a diphenyl-methylene group. 203 and R 204 are optionally also linked to each other via a single bond, a dimethyl-methylene group or a diphenyl-methylene group.

[0107] According to one embodiment, in formulas 201 and 202: L 201~L 205 are independent of each other, a phenylene group, a pentalenylene group, an indenylene group, a naphthylene group, an azulenylene group, a heptalenylene group, an indacenylene group, an acenaphthylene group, a fluorenylene group, a spiro-bifluorenylene group, a benzofluorenylene group, a dibenzofluorenylene group, a phenalenylene group, a phenanthrenylene group, an anthracenylene group, a fluoranthenylene group, a triphenylenylene group, a pyrenylene group, a chrysenylene group, a naphthacenylene group, a picenylene group, perylenylene groups, pentaphenylene groups, hexacenylene groups, pentacenylene groups, rubicenylene groups, coronenylene groups, ovalenylene groups, thiophenylene groups, furanylene groups, carbazolylene groups, indolylene groups, isoindolylene groups, benzofuranylene groups, benzothiophenylene groups, dibenzofuranylene groups, dibenzothiophenylene groups, benzocarbazolylene groups, dibenzocarbazolylene groups, dibenzosilolylene groups, and pyridinylene groups; and Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C 1 -C 20 Alkyl group, C 1 -C 20 Alkoxy group, cyclopentyl group, cyclohexyl group, cycloheptyl group, cyclopentenyl group, cyclohexenyl group, phenyl group, biphenylyl group, biphenylyl group, C 1 -C 10Biphenylyl group substituted with an alkyl group, biphenylyl group substituted with -F, pentalenyl group, indenyl group, naphthyl group, azulenyl group, heptalenyl group, indacenyl group, acenaphthyl group, fluorenyl group, spiro-bifluorenyl group, benzofluorenyl group, dibenzofluorenyl group, phenalenyl group, phenanthrenyl group, anthracenyl group, fluoranthenyl group, triphenylenyl group, pyrenyl group, chrysenyl group, naphthyl group, Tacenyl, picenyl, perylenyl, benbiphenylyl, hexacenyl, pentacenyl, rubicenyl, coronenyl, ovalenyl, thiophenyl, furanyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothiophenyl, dibenzofuranyl, dibenzothiophenyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, pyridinyl, -Si(Q 31 )(Q 32 )(Q 33 ), and -N(Q 31 )(Q 32 a phenylene group, a pentalenylene group, an indenylene group, a naphthylene group, an azulenylene group, a heptalenylene group, an indacenylene group, an acenaphthylene group, a fluorenylene group, a spiro-bifluorenylene group, a benzofluorenylene group, a dibenzofluorenylene group, a phenalenylene group, a phenanthrenylene group, an anthracenylene group, a fluoranthenylene group, a triphenylenylene group, a pyrenylene group, a chrysenylene group, or a naphthacenylene group, each of which is substituted with at least one selected from the group consisting of , picenylene group, perylenylene group, pentaphenylene group, hexacenylene group, pentacenylene group, rubicenylene group, coronenylene group, ovalenylene group, thiophenylene group, furanylene group, carbazolylene group, indolylene group, isoindolylene group, benzofuranylene group, benzothiophenylene group, dibenzofuranylene group, dibenzothiophenylene group, benzocarbazolylene group, dibenzocarbazolylene group, dibenzosilolylene group and pyridinylenyl group.

[0108] The aforementioned Q 31 ~Q 33 are independent of each other, C 1 -C 10Alkyl group, C 1 -C 10 It may be selected from the group consisting of alkoxy, phenyl, biphenylyl and naphthyl groups.

[0109] According to another embodiment, xa1 to xa4 may be 0, 1 or 2, independently of each other.

[0110] According to yet other embodiments, xa5 may be 1, 2, 3 or 4.

[0111] According to yet another embodiment, R 201 ~R 204 , and Q 201 are each independently a phenyl group, a biphenylyl group, a pentalenyl group, an indenyl group, a naphthyl group, an azulenyl group, a heptalenyl group, an indacenyl group, an acenaphthyl group, a fluorenyl group, a spiro-bifluorenyl group, a benzofluorenyl group, a dibenzofluorenyl group, a phenalenyl group, a phenanthrenyl group, an anthracenyl group, a fluoranthenyl group, a triphenylenyl group, a pyrenyl group, a chrysenyl group, a naphthyl group, tacenyl, picenyl, perylenyl, benbiphenylyl, hexacenyl, pentacenyl, rubicenyl, coronenyl, ovalenyl, thiophenyl, furanyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothiophenyl, dibenzofuranyl, dibenzothiophenyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl and pyridinyl groups; and Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C 1 -C 20 Alkyl group, C 1 -C 20 Alkoxy group, cyclopentyl group, cyclohexyl group, cycloheptyl group, cyclopentenyl group, cyclohexenyl group, phenyl group, biphenylyl group, biphenylyl group, C 1 -C 10Biphenylyl group substituted with an alkyl group, biphenylyl group substituted with -F, pentalenyl group, indenyl group, naphthyl group, azulenyl group, heptalenyl group, indacenyl group, acenaphthyl group, fluorenyl group, spiro-bifluorenyl group, benzofluorenyl group, dibenzofluorenyl group, phenalenyl group, phenanthrenyl group, anthracenyl group, fluoranthenyl group, triphenylenyl group, pyrenyl group, chrysenyl group, naphthyl group, Tacenyl, picenyl, perylenyl, benbiphenylyl, hexacenyl, pentacenyl, rubicenyl, coronenyl, ovalenyl, thiophenyl, furanyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothiophenyl, dibenzofuranyl, dibenzothiophenyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, pyridinyl, -Si(Q 31 )(Q 32 )(Q 33 ), and -N(Q 31 )(Q 32 a biphenylyl group, a biphenylyl group, a biphenylyl group, a pentalenyl group, an indenyl group, a naphthyl group, an azulenyl group, a heptalenyl group, an indacenyl group, an acenaphthyl group, a fluorenyl group, a spiro-bifluorenyl group, a benzofluorenyl group, a dibenzofluorenyl group, a phenalenyl group, a phenanthrenyl group, an anthracenyl group, a fluoranthenyl group, a triphenylenyl group, a pyrenyl group, a chrysenyl group , naphthacenyl group, picenyl group, perylenyl group, benbiphenylyl group, hexacenyl group, pentacenyl group, rubicenyl group, coronenyl group, ovalenyl group, thiophenyl group, furanyl group, carbazolyl group, indolyl group, isoindolyl group, benzofuranyl group, benzothiophenyl group, dibenzofuranyl group, dibenzothiophenyl group, benzocarbazolyl group, dibenzocarbazolyl group, dibenzosilolyl group and pyridinyl group.

[0112] The aforementioned Q 31 ~Q 33 For the explanation of the above, please refer to the description in this specification.

[0113] According to yet another embodiment, in formula 201, R 201 ~R 203 At least one of, independently of each other, fluorenyl, spiro-bifluorenyl, carbazolyl, dibenzofuranyl and dibenzothiophenyl groups; and Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C 1 -C 20 Alkyl group, C 1 -C 20 Alkoxy group, cyclopentyl group, cyclohexyl group, cycloheptyl group, cyclopentenyl group, cyclohexenyl group, phenyl group, biphenylyl group, biphenylyl group, C 1 -C 10 The alkyl group may be selected from the group consisting of a biphenylyl group substituted with an alkyl group, a biphenylyl group substituted with -F, a naphthyl group, a fluorenyl group, a spiro-bifluorenyl group, a carbazolyl group, a dibenzofuranyl group, and a dibenzothiophenyl group, all of which are substituted with at least one selected from the group consisting of a naphthyl group, a fluorenyl group, a spiro-bifluorenyl group, a carbazolyl group, a dibenzofuranyl group, and a dibenzothiophenyl group; but is not limited thereto.

[0114] According to yet another embodiment, in formula 202, i) R 201 and R 202 are linked to each other via a single bond; and / or ii) R 203 and R 204 are linked to each other via a single bond.

[0115] According to yet another embodiment, in formula 202, R 201 ~R 204 at least one of is a carbazolyl 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 20Alkoxy group, cyclopentyl group, cyclohexyl group, cycloheptyl group, cyclopentenyl group, cyclohexenyl group, phenyl group, biphenylyl group, biphenylyl group, C 1 -C 10 a biphenylyl group substituted with an alkyl group, a biphenylyl group substituted with -F, a naphthyl group, a fluorenyl group, a spiro-bifluorenyl group, a carbazolyl group, a dibenzofuranyl group, and a carbazolyl group substituted with at least one selected from a dibenzothiophenyl group, but is not limited thereto.

[0116] The compound represented by chemical formula 201 is also represented by the following chemical formula 201A. [ka] (Chemical formula 201A)

[0117] For example, the compound represented by chemical formula 201 can also be represented by the following chemical formula 201A(1), but is not limited thereto. [ka] (Chemical formula 201A(1))

[0118] As yet another example, the compound represented by Chemical Formula 201 may also be represented by Chemical Formula 201A-1 below, but is not limited thereto. [ka] (Chemical formula 201A-1)

[0119] On the other hand, the compound represented by chemical formula 202 can also be represented by the following chemical formula 202A: [ka] (Chemical formula 202A)

[0120] According to yet another embodiment, the compound represented by formula 202 is also represented by formula 202A-1: [ka] (Chemical formula 202A-1)

[0121] Chemical formulas are 201A, 201A(1), 201A-1, 202A and 202A-1.

[0122] L 201 ~L 203 , xa1 to xa3, xa5, and R 202 ~R 204 For the explanation of the above, please refer to the description in this specification.

[0123] R 211 and R 212 The explanation for R 203 Please refer to the explanation about.

[0124] R 213 ~R 217 are each independently hydrogen, deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a 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, biphenylyl group, biphenylyl group, C 1 -C 10Biphenylyl group substituted with an alkyl group, biphenylyl group substituted with -F, pentalenyl group, indenyl group, naphthyl group, azulenyl group, heptalenyl group, indacenyl group, acenaphthyl group, fluorenyl group, spiro-bifluorenyl group, benzofluorenyl group, dibenzofluorenyl group, phenalenyl group, phenanthrenyl group, anthracenyl group, fluoranthenyl group, triphenylenyl group, pyrenyl group, chrysenyl group, naphthacenyl group , picenyl group, perylenyl group, benbiphenylyl group, hexacenyl group, pentacenyl group, rubicenyl group, coronenyl group, ovalenyl group, thiophenyl group, furanyl group, carbazolyl group, indolyl group, isoindolyl group, benzofuranyl group, benzothiophenyl group, dibenzofuranyl group, dibenzothiophenyl group, benzocarbazolyl group, dibenzocarbazolyl group, dibenzosilolyl group, and pyridinyl group.

[0125] The hole transport region may contain at least one compound selected from the following compounds HT1 to HT39, but is not limited thereto. [ka] JPEG0007655701000043.jpg82138 JPEG0007655701000044.jpg81136 JPEG0007655701000045.jpg89140 JPEG0007655701000046.jpg81140 JPEG0007655701000047.jpg81139 JPEG0007655701000048.jpg39142

[0126] The thickness of the hole transport region may be about 10 nm or more and about 10,000 nm or less, for example, about 10 nm or more and about 100 nm or less. If the hole transport region includes at least one layer of a hole injection layer and a hole transport layer, the thickness of the hole injection layer is about 10 nm or more and about 900 nm or less, for example, about 10 nm or more and about 100 nm or less. The thickness of the hole transport layer may be about 5 nm or more and about 200 nm or less, for example, about 10 nm or more and about 150 nm or less. When the thicknesses of the hole transport region, the hole injection layer, and the hole transport layer satisfy the above-mentioned ranges, satisfactory hole transport properties can be obtained without a substantial increase in driving voltage.

[0127] The light-emitting auxiliary layer is a layer that compensates for the optical resonance distance according to the wavelength of light emitted from the light-emitting layer, thereby increasing light emission efficiency. The electron blocking layer is a layer that prevents electron injection from the electron transport region. The light-emitting auxiliary layer and the electron blocking layer may include the above-mentioned materials.

[0128] [p-dopant] In addition to the materials described above, the hole transport region may further include a charge generating material to enhance electrical conductivity. The charge generating material may be dispersed uniformly or non-uniformly within the hole transport region.

[0129] The charge generating material can be, for example, a p-dopant.

[0130] According to one embodiment, the LUMO of the p-dopant may be less than or equal to -3.5 eV.

[0131] The p-dopant may include at least one selected from the group consisting of quinone derivatives, metal oxides, and cyano group-containing compounds, but is not limited thereto.

[0132] For example, p-dopants include quinone derivatives such as tetracyanoquinodimethane (TCNQ) and 2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane (F4-TCNQ); Metal oxides such as tungsten oxide and molybdenum oxide; 1,4,5,8,9,12-Hexaazatriphenylene-hexacarbonitrile (HAT-CN); and The compound may include at least one selected from the following compounds represented by the following formula 221; but is not limited thereto: <f4-tcnq>

change

[0133] In chemical formula 221, R 221 ~R 223 are, independently of each other, substituted or unsubstituted C 3 -C 10 Cycloalkyl groups, substituted or unsubstituted C 1 -C 10 Heterocycloalkyl groups, substituted or unsubstituted C 3 -C 10 Cycloalkenyl groups, substituted or unsubstituted C 1 -C 10 Heterocycloalkenyl groups, substituted or unsubstituted C 6 -C 60 Aryl groups, substituted or unsubstituted C 1 -C 60 a heteroaryl group, a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, and a substituted or unsubstituted monovalent non-aromatic condensed polycyclic heterocyclic group, 221 ~R 223 At least one of the C substituted with a cyano group, -F, -Cl, -Br, -I, or -F 1 -C 20 Alkyl group, C substituted with -Cl 1 -C 20 C substituted with alkyl group, -Br 1 -C 20 C substituted with alkyl group and -I 1 -C 20 It has at least one substituent selected from the group consisting of alkyl groups.

[0134] [Light-emitting layer in organic layer 150] When the organic light emitting device 10 is a full-color organic light emitting device, the light emitting layer may be patterned into a red light emitting layer, a green light emitting layer, and a blue light emitting layer for each individual subpixel. Alternatively, the light emitting layer may have a structure in which two or more layers selected from the red light emitting layer, the green light emitting layer, and the blue light emitting layer are stacked in contact with each other or at a distance from each other, or may have a structure in which two or more materials selected from the red light emitting material, the green light emitting material, and the blue light emitting material are mixed without layer division, and may emit white light.

[0135] The thickness of the light-emitting layer may be about 10 nm or more and about 100 nm or less, for example, about 20 nm or more and about 60 nm or less. When the thickness of the light-emitting layer satisfies the above-mentioned range, excellent light-emitting characteristics can be exhibited without a substantial increase in driving voltage.

[0136] [Electron transport region in organic layer 150] The electron transport region can have i) a monolayer structure consisting of a single layer of a single material, ii) a monolayer structure consisting of a single layer of multiple different materials, or iii) a multilayer structure having multiple layers consisting of multiple different materials.

[0137] The electron transport region may include at least one layer selected from, but is not limited to, a buffer layer, a hole blocking layer, an electron modulating layer, an electron transport layer (ETL), and an electron injection layer.

[0138] For example, the electron transport region may have a structure such as, but is not limited to, 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 / electron injection layer, which are stacked in this order from the light emitting layer.

[0139] An electron transport region (eg, a buffer layer, a hole blocking layer, an electron modulating layer, or an electron transport layer in an electron transport region) may include a non-metal-containing compound that includes at least one π-electron deficient nitrogen-containing ring.

[0140] A "π-electron deficient nitrogen-containing ring" is a ring-forming moiety having at least one *-N=*' moiety. 1 -C 60 It means a heterocyclic group.

[0141] For example, the "π-electron deficient nitrogen-containing ring" is i) a 5- to 7-membered heteromonocyclic group having at least one *-N=*' moiety, ii) a heteropolycyclic group in which two or more of the 5- to 7-membered heteromonocyclic groups having at least one *-N=*' moiety are condensed with each other, or iii) at least one of the 5- to 7-membered heteromonocyclic groups having at least one *-N=*' moiety and at least one C 5 -C 60 A heteropolycyclic group in which carbocyclic groups are condensed with each other may also be used.

[0142] Specific examples of the π-electron deficient nitrogen-containing ring include, but are not limited to, imidazole, pyrazole, thiazole, isothiazole, oxazole, isoxazole, pyridine, pyrazine, pyrimidine, pyridazine, indazole, purine, quinoline, isoquinoline, benzoquinoline, phthalazine, naphthyridine, quinoxaline, quinazoline, cinnoline, phenanthridine, acridine, phenanthroline, phenazine, benzimidazole, isobenzothiazole, benzoxazole, isobenzoxazole, triazole, tetrazole, oxadiazole, triazine, thiadiazole, imidazopyridine, imidazopyrimidine, and azacarbazole.

[0143] For example, the electron transport region may include a compound represented by formula 601 below. [ka] (Chemical formula 601)

[0144] In chemical formula 601, Ar 601 is a substituted or unsubstituted C 5 -C 60 Carbocyclic groups, or substituted or unsubstituted C 1 -C 60 It is a heterocyclic group. xe11 is 1, 2 or 3.

[0145] L 601 is a substituted or unsubstituted C 3 -C 10 Cycloalkylene groups, substituted or unsubstituted C 1 -C 10 Heterocycloalkylene groups, substituted or unsubstituted C 3 -C 10 Cycloalkenylene groups, substituted or unsubstituted C 1 -C 10 Heterocycloalkenylene groups, substituted or unsubstituted C 6 -C 60 Arylene groups, substituted or unsubstituted C 1 -C 60 It is selected from among a heteroarylene group, a substituted or unsubstituted divalent non-aromatic fused polycyclic group, and a substituted or unsubstituted divalent non-aromatic fused polycyclic heterocyclic group.

[0146] xe1 is selected from integers from 0 to 5.

[0147] R 601 is a substituted or unsubstituted C 3 -C 10 Cycloalkyl groups, substituted or unsubstituted C 1 -C 10 Heterocycloalkyl groups, substituted or unsubstituted C 3 -C 10 Cycloalkenyl groups, substituted or unsubstituted C 1 -C 10 Heterocycloalkenyl groups, substituted or unsubstituted C 6 -C 60 Aryl groups, substituted or unsubstituted C 6 -C 60 Aryloxy groups, substituted or unsubstituted C 6 -C 60 Arylthio groups, substituted or unsubstituted C 1 -C 60 Heteroaryl groups, substituted or unsubstituted monovalent non-aromatic condensed polycyclic groups, substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic groups, -Si(Q 601 )(Q 602 )(Q 603 ), -C(=O)(Q 601 ), -S(=O) 2 (Q 601 ), and -P(=O)(Q 601 )(Q 602 ) is selected.

[0148] The aforementioned Q 601 ~Q 603 are independent of each other, C 1 -C 10 Alkyl group, C 1 -C 10 It is an alkoxy group, a phenyl group, a biphenylyl group, a biphenylyl group or a naphthyl group.

[0149] xe21 is selected from integers of 1 to 5.

[0150] According to one embodiment, xe11 Ar 601 , and xe21 R 601 At least one of the above may contain a π-electron deficient nitrogen-containing ring as described above.

[0151] According to one embodiment, the ring Ar 601 teeth, Phenyl, naphthyl, fluorenyl, spiro-bifluorenyl, benzofluorenyl, dibenzofluorenyl, phenalenyl, phenanthrenyl, anthracenyl, fluoranthenyl, triphenylenyl, pyrenyl, chrysenyl, naphthacenyl, picenyl, perylenyl, pentaphenyl, indenoanthracenyl, dibenzofuranyl, dibenzothiophenyl, carbazolyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, pyridinyl, pyrazinyl, pyrimidinyl, aryl, pyridazinyl, indazolyl, purinyl, quinolinyl, isoquinolinyl, benzoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, isobenzothiazolyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, oxadiazolyl, triazinyl, thiadiazolyl, imidazopyridinyl, imidazopyrimidinyl and azacarbazolyl groups; and Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C 1 -C 20 Alkyl group, C 1 -C 20 Alkoxy group, phenyl group, biphenylyl group, biphenylyl group, naphthyl group, -Si(Q 31 )(Q 32 )(Q 33 ), -S(=O) 2 (Q 31 ) and -P(=O)(Q 31 )(Q 32 a phenyl group, a naphthyl group, a fluorenyl group, a spiro-bifluorenyl group, a benzofluorenyl group, a dibenzofluorenyl group, a phenalenyl group, a phenanthrenyl group, an anthracenyl group, a fluoranthenyl group, a triphenylenyl group, a pyrenyl group, a chrysenyl group, a naphthacenyl group, a picenyl group, a perylenyl group, a pentaphenyl group, an indenoanthracenyl group, a dibenzofuranyl group, a dibenzothiophenyl group, a carbazolyl group, an imidazolyl group, a pyrazolyl group, a thiazolyl group, an isothiazolyl group, an oxazolyl group, an isoxazolyl group, a pyridinyl group, a pyrazinyi ... a pyrimidinyl group, a pyridazinyl group, an indazolyl group, a purinyl group, a quinolinyl group, an isoquinolinyl group, a benzoquinolinyl group, a phthalazinyl group, a naphthyridinyl group, a quinoxalinyl group, a quinazolinyl group, a cinnolinyl group, a phenanthridinyl group, an acridinyl group, a phenanthrolinyl group, a phenazinyl group, a benzimidazolyl group, an isobenzothiazolyl group, a benzoxazolyl group, an isobenzoxazolyl group, a triazolyl group, a tetrazolyl group, an oxadiazolyl group, a triazinyl group, a thiadiazolyl group, an imidazopyridinyl group, an imidazopyrimidinyl group, and an azacarbazole group.

[0152] The aforementioned Q 31 ~Q 33 are independent of each other, C 1 -C 10 Alkyl group, C 1 -C 10 It may be selected from the group consisting of alkoxy, phenyl, biphenylyl and naphthyl groups.

[0153] In the formula 601, if xe11 is 2 or more, 2 or more Ar 601 are also linked to each other via a single bond.

[0154] According to another embodiment, the compound represented by formula 601 is Ar 601 may be an anthracenyl group.

[0155] According to yet another embodiment, the compound represented by 601 is also represented by the following formula 601-1: [ka] (Compound 601-1)

[0156] In the chemical formula 601-1, X 614 is N or C(R 614 ) X 615 is N or C(R 615 ) X 616 is N or C(R 616 ) X 614 ~X 616 At least one of is N.

[0157] L 611 ~L 613 are independent of each other, L 601 Please refer to the explanation about.

[0158] xe611 to xe613 are independent of each other and refer to the explanation for xe1.

[0159] R 611 ~R 613 are independent of each other, R 601 Please refer to the explanation about.

[0160] R 614 ~R 616 are each independently hydrogen, deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, C 1 -C 20 Alkyl group, C 1 -C 20 It may be selected from the group consisting of alkoxy, phenyl, biphenylyl and naphthyl groups.

[0161] According to one embodiment, in formulas 601 and 601-1, L 601 , and L 611 ~L 613 are independent of each other, Phenylene group, naphthylene group, fluorenylene group, spiro-bifluorenylene group, benzofluorenylene group, dibenzofluorenylene group, phenanthrenylene group, anthracenylene group, fluoranthenylene group, triphenylenylene group, pyrenylene group, chrysenylene group, perylenylene group, pentaphenylene group, hexacenylene group, pentacenylene group, thiophenylene group, furanylene group, carbazolylene group, indolylene group, isoindolylene group, benzofuranylene group, benzothiophenylene group, dibenzofuranylene group, dibenzothiophenylene group, benzocarbazolylene group, dibenzocarbazolylene group, dibenzosilolylene group, pyridinylene group, imidazolylene group, pyrazolylene group, thiazolylene group , isothiazolylene groups, oxazolylene groups, isoxazolylene groups, thiadiazolylene groups, oxadiazolylene groups, pyrazinylene groups, pyrimidinylene groups, pyridazinylene groups, triazinylene groups, quinolinylene groups, isoquinolinylene groups, benzoquinolinylene groups, phthalazinylene groups, naphthyridinylene groups, quinoxalinylene groups, quinazolinylene groups, cinnolinylene groups, phenanthridinylene groups, acridinylene groups, phenanthrolinylene groups, phenazinylene groups, benzimidazolylene groups, isobenzothiazolylene groups, benzoxazolylene groups, isobenzoxazolylene groups, triazolylene groups, tetrazolylene groups, imidazopyridinylene groups, imidazopyrimidinylene groups, and azacarbazolylene groups; and Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C 1 -C 20 Alkyl group, C 1 -C 20 Alkoxy group, phenyl group, biphenylyl group, biphenylyl group, naphthyl group, fluorenyl group, spiro-bifluorenyl group, benzofluorenyl group, dibenzofluorenyl group, phenanthrenyl group, anthracenyl group, fluoranthenyl group, triphenylenyl group, pyrenyl group, chrysenyl group, perylenyl group, phenbiphenylyl group, hexacenyl group, pentacenyl group, thiophenyl group, furanyl group, carbazolyl group, indolyl group, isoindolyl group, benzofuranyl group, benzothiophenyl group, dibenzofuranyl group, dibenzothiophenyl group, benzocarbazolyl group, bazolyl group, dibenzocarbazolyl group, dibenzosilolyl group, pyridinyl group, imidazolyl group, pyrazolyl group, thiazolyl group, isothiazolyl group, oxazolyl group, isoxazolyl group, thiadiazolyl group, oxadiazolyl group, pyrazinyl group, pyrimidinyl group, pyridazinyl group, triazinyl group, quinolinyl group, isoquinolinyl group, benzoquinolinyl group, phthalazinyl group, naphthyridinyl group, quinoxalinyl group, quinazolinyl group, cinnolinyl group, phenanthridinyl group, acridinyl group, phenanthrolinyl group, phenazinyl group, benzimidazolyl group , a phenylenyl group, a naphthylenyl group, a fluorenylenyl group, a spiro-bifluorenylenyl group, a benzofluorenylenyl group, a dibenzofluorenylenyl group, a phenanthrenyl group, an anthracenylenyl group, a fluoranthenylenyl group, a triphenylenylenyl group, a pyrenylenyl group, a chrysenylenyl group, a perylenylenyl group, each of which is substituted with at least one selected from the group consisting of an isobenzothiazolyl group, a benzoxazolyl group, an isobenzoxazolyl group, a triazolyl group, a tetrazolyl group, an imidazopyridinyl group, an imidazopyrimidinyl group, and an azacarbazolyl group; group, a pentaphenylenyl group, a hexacenylenyl group, a pentacenylenyl group, a thiophenylenyl group, a furanylenyl group, a carbazolylenyl group, an indorylenyl group, an isoindorylenyl group, a benzofuranylenyl group, a benzothiophenylenyl group, a dibenzofuranylenyl group, a dibenzothiophenylenyl group, a benzocarbazolilenyl group, a dibenzocarbazolilenyl group, a dibenzosilyllenyl group, a pyridinylenyl group, an imidazolylenyl group, a pyrazolilenyl group, a thiazolylenyl group, an isothiazolilenyl group, an oxazolilenyl group, an isoxazolilenyl group, a thiadiazolylenyl group,The alkyl group may be selected from, but is not limited to, an oxadiazolylenyl group, a pyrazinylenyl group, a pyrimidinylenyl group, a pyridazinylenyl group, a triazinylenyl group, a quinolinylenyl group, an isoquinolinylenyl group, a benzoquinolinylenyl group, a phthalazinylenyl group, a naphthyridinylenyl group, a quinoxalinylenyl group, a quinazolinylenyl group, a cinnolinylenyl group, a phenanthridinylenyl group, an acridinylenyl group, a phenanthrolynyl group, a phenazinylenyl group, a benzimidazolylenyl group, an isobenzothiazolylenyl group, a benzoxazolilenyl group, an isobenzoxazolilenyl group, a triazolilenyl group, a tetrazolylenyl group, an imidazopyridinylenyl group, an imidazopyrimidinylenyl group, and an azacarbazolilenyl group.

[0162] According to another embodiment, in formulas 601 and 601-1, xe1 and xe611 through xe613 may be 0, 1, or 2, independently of one another.

[0163] According to yet another embodiment, in formulas 601 and 601-1, R 601 , and R 611 ~R 613 are independent of each other, Phenyl, biphenylyl, naphthyl, fluorenyl, spiro-bifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthrenyl, anthracenyl, fluoranthenyl, triphenylenyl, pyrenyl, chrysenyl, perylenyl, phenbiphenylyl, hexacenyl, pentacenyl, thiophenyl, furanyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothiophenyl, dibenzofuranyl, dibenzothiophenyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, pyridinyl, imidazolyl, pyrazolyl a thiazolyl group, an isothiazolyl group, an oxazolyl group, an isoxazolyl group, a thiadiazolyl group, an oxadiazolyl group, a pyrazinyl group, a pyrimidinyl group, a pyridazinyl group, a triazinyl group, a quinolinyl group, an isoquinolinyl group, a benzoquinolinyl group, a phthalazinyl group, a naphthyridinyl group, a quinoxalinyl group, a quinazolinyl group, a cinnolinyl group, a phenanthridinyl group, an acridinyl group, a phenanthrolinyl group, a phenazinyl group, a benzimidazolyl group, an isobenzothiazolyl group, a benzoxazolyl group, an isobenzoxazolyl group, a triazolyl group, a tetrazolyl group, an imidazopyridinyl group, an imidazopyrimidinyl group, and an azacarbazolyl group; 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, biphenylyl group, biphenylyl group, naphthyl group, fluorenyl group, spiro-bifluorenyl group, benzofluorenyl group, dibenzofluorenyl group, phenanthrenyl group, anthracenyl group, fluoranthenyl group, triphenylenyl group, pyrenyl group, chrysenyl group, perylenyl group, phenbiphenylyl group, hexacenyl group, pentacenyl group, thiophenyl group, furanyl group, carbazolyl group, indolyl group, isoindolyl group, benzofuranyl group, benzothiophenyl group, dibenzofuranyl group, dibenzothiophenyl group, benzocarbazolyl group, a zolyl group, a dibenzocarbazolyl group, a dibenzosilolyl group, a pyridinyl group, an imidazolyl group, a pyrazolyl group, a thiazolyl group, an isothiazolyl group, an oxazolyl group, an isoxazolyl group, a thiadiazolyl group, an oxadiazolyl group, a pyrazinyl group, a pyrimidinyl group, a pyridazinyl group, a triazinyl group, a quinolinyl group, an isoquinolinyl group, a benzoquinolinyl group, a phthalazinyl group, a naphthyridinyl group, a quinoxalinyl group, a quinazolinyl group, a cinnolinyl group, a phenanthridinyl group, an acridinyl group, a phenanthrolinyl group, a phenazinyl group, a benzimidazolyl group, a biphenylyl group, a biphenylyl group, a biphenylyl group, a naphthyl group, a fluorenyl group, a spiro-bifluorenyl group, a benzofluorenyl group, a dibenzofluorenyl group, a phenanthrenyl group, an anthracenyl group, a fluoranthenyl group, a triphenylenyl group, a pyrenyl group, a chrysenyl group, a perylenyl group, a phenbiphenylyl group, which are substituted with at least one selected from an isobenzothiazolyl group, a benzoxazolyl group, an isobenzoxazolyl group, a tri ... a hexacenyl group, a pentacenyl group, a thiophenyl group, a furanyl group, a carbazolyl group, an indolyl group, an isoindolyl group, a benzofuranyl group, a benzothiophenyl group, a dibenzofuranyl group, a dibenzothiophenyl group, a benzocarbazolyl group, a dibenzocarbazolyl group, a dibenzosilolyl group, a pyridinyl group, an imidazolyl group, a pyrazolyl group, a thiazolyl group, an isothiazolyl group, an oxazolyl group, an isoxazolyl group, a thiadiazolyl group, an oxadiazolyl group, a pyrazinyl group, a pyrimidinyl group, a pyridazinyl group, a triazinyl group, a quinolinyl group, an isoquinolinyl group,benzoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, isobenzothiazolyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, imidazopyridinyl, imidazopyrimidinyl and azacarbazolyl groups; and -S(=O) 2 (Q 601 ) and -P(=O)(Q 601 )(Q 602 ); is selected from among

[0164] The aforementioned Q 601 and Q 602 For the explanation of the above, please refer to the description in this specification.

[0165] The electron transport region may contain at least one compound selected from the following compounds ET1 to ET36, but is not limited thereto. [ka] JPEG0007655701000055.jpg36136 JPEG0007655701000056.jpg54137 JPEG0007655701000057.jpg61140 JPEG0007655701000058.jpg52140 JPEG0007655701000059.jpg59140 JPEG0007655701000060.jpg61135 JPEG0007655701000061.jpg42135 JPEG0007655701000062.jpg42135 JPEG0007655701000063.jpg47140 JPEG0007655701000064.jpg47141 JPEG0007655701000065.jpg49139

[0166] Alternatively, the electron transport region may comprise at least one compound selected from 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline (BCP), 4,7-diphenyl-1,10-phenanthroline (Bphen), Alq3, BAlq, 3-(biphenylyl-4-yl)-5-(4-tert-butylphenyl)-4-phenyl-4H-1,2,4-triazole (TAZ), NTAZ, and diphenyl(4-(triphenylsilyl)phenyl)-phosphine oxide (TSPO1). [ka] JPEG0007655701000067.jpg4352

[0167] The thickness of the buffer layer, hole blocking layer, or electron control layer may be, independently of one another, about 2 nm to about 100 nm, for example, about 3 nm to about 30 nm. When the thickness of the buffer layer, hole blocking layer, or electron control layer satisfies the above range, excellent hole blocking properties or electron control properties can be obtained without a substantial increase in driving voltage.

[0168] The thickness of the electron transport layer may be about 10 nm or more and about 100 nm or less, for example, about 15 nm or more and about 50 nm or less. When the thickness of the electron transport layer satisfies the above-mentioned range, satisfactory electron transport properties can be obtained without a substantial increase in driving voltage.

[0169] The electron transport region (eg, an electron transport layer in an electron transport region) may further include a metal-containing material in addition to the materials described above.

[0170] The metal-containing material may include at least one selected from an alkali metal complex and an alkaline earth metal complex. The metal ion of the alkali metal complex may also be selected from Li ion, Na ion, K ion, Rb ion, and Cs ion. The metal ion of the alkaline earth metal complex may also be selected from Be ion, Mg ion, Ca ion, Sr ion, and Ba ion. The ligands coordinated to the metal ion of the alkali metal complex and the alkaline earth metal complex may be independently selected from hydroxyquinoline, hydroxyisoquinoline, hydroxybenzoquinoline, hydroxyacridine, hydroxyphenanthridine, hydroxyphenyloxazole, hydroxyphenylthiazole, hydroxydiphenyloxadiazole, hydroxydiphenylthiadiazole, hydroxyphenylpyridine, hydroxyphenylbenzimidazole, hydroxyphenylbenzothiazole, bipyridine, phenanthroline, and cyclopentadiene, but are not limited thereto.

[0171] For example, the metal-containing material may include a Li complex. The Li complex may include, for example, the following compound ET-D1 (lithium quinolate (LiQ)) or ET-D2.

[0172] [ka]

[0173] The electron transport region may include an electron injection layer that facilitates electron injection from the second electrode 190. The electron injection layer may be in direct contact with the second electrode 190.

[0174] The electron injection layer can have i) a single layer structure consisting of a single layer made of a single material, ii) a single layer structure consisting of single layers made of a plurality of different materials, or iii) a multilayer structure having a plurality of layers made of a plurality of different materials.

[0175] The electron injection layer may comprise an alkali metal, an alkaline earth metal, a rare earth metal, an alkali metal compound, an alkaline earth metal compound, a rare earth metal compound, an alkali metal complex, an alkaline earth metal complex, a rare earth metal complex, or any combination thereof.

[0176] The alkali metal may be selected from Li, Na, K, Rb and Cs. According to one embodiment, the alkali metal may be Li, Na or Cs. According to another embodiment, the alkali metal may be Li or Cs, but is not limited thereto.

[0177] The alkaline earth metal may be selected from Mg, Ca, Sr, and Ba.

[0178] The rare earth metal may be selected from Sc, Y, Ce, Tb, Yb and Gd.

[0179] The alkali metal compounds, alkaline earth metal compounds and rare earth metal compounds may be selected from among oxides and halides (e.g., fluorides, chlorides, bromides, iodides, etc.) of alkali metals, alkaline earth metals and rare earth metals.

[0180] Alkali metal compounds include Li 2 O, Cs 2 OK 2 The alkali metal compound may be selected from the group consisting of alkali metal oxides such as LiF, LiO, and alkali metal halides such as LiF, NaF, CsF, KF, LiI, NaI, CsI, KI. According to one embodiment, the alkali metal compound is LiF, Li 2 The oxide may be selected from, but is not limited to, O, NaF, LiI, NaI, CsI, and KI.

[0181] The alkaline earth metal compound may be selected from alkaline earth metal compounds such as BaO, SrO, CaO, Ba x Sr 1-x O (0 < x < 1), Ba x Ca 1-x O (0 < x < 1). According to one embodiment, the alkaline earth metal compound may be selected from, but is not limited to, BaO, SrO, and CaO.

[0182] The rare earth metal compound may be selected from YbF 3 , ScF 3 , ScO 3 , Y 2 O 3 , Ce 2 O 3 , GdF 3 and TbF 3 . According to one embodiment, the rare earth metal compound may be selected from, but is not limited to, YbF 3 , ScF 3 , TbF 3 , YbI 3 , ScI 3 , TbI 3 .

[0183] The aforementioned alkali metal complex, alkaline earth metal complex, and rare earth metal complex contain metal ions of the aforementioned alkali metal, alkaline earth metal, and rare earth metal, and the ligands coordinated to the metal ions of the aforementioned alkali metal complex, alkaline earth metal complex, and rare earth metal complex may be independently selected from, but are not limited to, hydroxyquinoline, hydroxyisoquinoline, hydroxybenzoquinoline, hydroxyacridine, hydroxyphenanthridine, hydroxyphenyloxazole, hydroxyphenylthiazole, hydroxydiphenyloxadiazole, hydroxydiphenylthiadiazole, hydroxyphenylpyridine, hydroxyphenylbenzimidazole, hydroxyphenylbenzothiazole, bipyridine, phenanthroline, and cyclopentadiene.

[0184] The electron injection layer may consist of only the above-mentioned alkali metal, alkaline earth metal, rare earth metal, alkali metal compound, alkaline earth metal compound, rare earth metal compound, alkali metal complex, alkaline earth metal complex, rare earth metal complex, or any combination thereof, or may further contain an organic substance. When the electron injection layer further contains an organic substance, the above-mentioned alkali metal, alkaline earth metal, rare earth metal, alkali metal compound, alkaline earth metal compound, rare earth metal compound, alkali metal complex, alkaline earth metal complex, rare earth metal complex, or any combination thereof is uniformly or non-uniformly dispersed in a matrix composed of an organic substance.

[0185] The thickness of the electron injection layer may be from about 0.1 nm to about 10 nm, or from about 0.3 nm to about 9 nm. When the thickness of the electron injection layer satisfies the above-mentioned range, satisfactory electron injection characteristics can be obtained without a substantial increase in driving voltage.

[0186] [Second electrode 190] The second electrode 190 is disposed on the organic layer 150. The second electrode 190 may be a cathode, which is an electron injection electrode. In this case, the material for the second electrode 190 may be a metal, an alloy, an electrically conductive compound, or a combination thereof, each having a low work function.

[0187] The second electrode 190 may include at least one selected from the group consisting of lithium (Li), silver (Ag), magnesium (Mg), aluminum (Al), aluminum-lithium (Al-Li), calcium (Ca), magnesium-indium (Mg-In), magnesium-silver (Mg-Ag), ITO, and IZO, but is not limited thereto. The second electrode 190 may be a transmissive electrode, a semi-transmissive electrode, or a reflective electrode.

[0188] The second electrode 190 can have a single-layer structure having a single layer, or a multi-layer structure having multiple layers.

[0189] [Explanation of Figures 2 to 4] The organic light emitting device 20 in 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 stacked in this order. The organic light emitting device 30 in Fig. 3 has a structure in which a first electrode 110, an organic layer 150, a second electrode 190, and a second capping layer 220 are stacked in this order. The organic light emitting device 40 in Fig. 4 has a structure in which a first capping layer 210, a first electrode 110, an organic layer 150, a second electrode 190, and a second capping layer 220 are stacked in this order.

[0190] 2 to 4, the description of the first electrode 110, the organic layer 150, and the second electrode 190 refer to the description of FIG.

[0191] Light generated in the light-emitting layer in the organic layer 150 of the organic light-emitting device 20, 40 is extracted to the outside through the first electrode 110, which is a semi-transmissive electrode or a transmissive electrode, and the first capping layer 210. Light generated in the light-emitting layer in the organic layer 150 of the organic light-emitting device 30, 40 is extracted to the outside through the second electrode 190, which is a semi-transmissive electrode or a transmissive electrode, and the second capping layer 220.

[0192] The first capping layer 210 and the second capping layer 220 may serve to improve external light emission efficiency according to the principle of constructive interference.

[0193] The first capping layer 210 and the second capping layer 220 may be, independently of each other, an organic capping layer made of an organic material, an inorganic capping layer made of an inorganic material, or a composite capping layer containing an organic material and an inorganic material.

[0194] At least one of the first capping layer 210 and the second capping layer 220 may independently include at least one material selected from the group consisting of carbocyclic compounds, heterocyclic compounds, amine-based compounds, porphine derivatives, phthalocyanine derivatives, naphthalocyanine derivatives, alkali metal complexes, and alkaline earth metal complexes. The carbocyclic compounds, heterocyclic compounds, and amine-based compounds may be optionally substituted with a substituent containing at least one element selected from the group consisting of O, N, S, Se, Si, F, Cl, Br, and I. According to an embodiment, at least one of the first capping layer 210 and the second capping layer 220 may independently include an amine-based compound.

[0195] According to another implementation, at least one of the first capping layer 210 and the second capping layer 220 may include, independently of one another, a compound represented by Formula 201 or a compound represented by Formula 202.

[0196] According to yet another embodiment, at least one of the first capping layer 210 and the second capping layer 220 may independently include a compound selected from compounds HT28 to HT33 and compounds CP1 to CP5 below, but is not limited thereto.

[0197] [ka]

[0198] The organic light-emitting device has been described above with reference to FIGS. 1 to 4, but is not limited thereto.

[0199] Each layer included in the hole transport region, the light emitting layer, and each layer included in the electron transport region are formed in a predetermined region using various methods such as vacuum deposition, spin coating, casting, LB (Langmuir-Blodgett) method, inkjet printing, laser printing, and laser induced thermal imaging (LITI) method.

[0200] When each layer included in the hole transport region, the light emitting layer, and each layer included in the electron transport region are formed by vacuum deposition, the deposition conditions are, for example, a deposition temperature of about 100° C. to about 500° C., a deposition temperature of about 10 -8 or about 10 -3 The vacuum level may be selected within the range of about 0.001 nm / sec to about 10 nm / sec, taking into consideration the material contained in the layer to be formed and the structure of the layer to be formed.

[0201] When each layer included in the hole transport region, the light-emitting layer, and each layer included in the electron transport region are formed by a spin coating method, the coating conditions may be selected, for example, within the range of a coating speed of about 2,000 rpm or more and about 5,000 rpm or less, and a heat treatment temperature of about 80°C or more and 200°C or less, taking into consideration the materials included in the layers to be formed and the structure of the layers to be formed.

[0202] [Device] Organic light emitting devices are also included in various devices.

[0203] Specifically, the device may include a thin film transistor including a source electrode, a drain electrode, and an active layer, and an organic light emitting element as described above. A first electrode of the organic light emitting element is electrically connected to one of the source electrode and the drain electrode of the thin film transistor.

[0204] The thin film transistor may further include a gate electrode, a gate insulating film, and the like.

[0205] The active layer may include, but is not limited to, crystalline silicon, amorphous silicon, organic semiconductors, oxide semiconductors, and the like.

[0206] The device may further include a sealing part for sealing the organic light-emitting element. The sealing part realizes an image from the organic light-emitting element and blocks the penetration of outside air and moisture into the organic light-emitting element. The sealing part may be a sealing substrate including a transparent glass or plastic substrate. The sealing part may be a thin-film sealing layer including multiple organic layers and / or multiple inorganic layers. If the sealing part is a thin-film sealing layer, the entire device may be flexible.

[0207] For example, the device may be a light emitting device, an authentication device or an electronic device.

[0208] Light-emitting devices are also used as various displays, light sources, and the like.

[0209] The authentication device may be, for example, a biometric authentication device that authenticates an individual by using biometric information of a living body (for example, a fingertip, an eye, etc.) The authentication device may further include a biometric information collecting means in addition to the organic light-emitting element as described above.

[0210] Electronic devices can also be used in, but are not limited to, personal computers (e.g., mobile personal computers), mobile phones, digital cameras, electronic organizers, electronic dictionaries, electronic game consoles, medical equipment (e.g., electronic thermometers, blood pressure monitors, blood glucose meters, pulse measuring devices, pulse wave measuring devices, electrocardiogram devices, ultrasound diagnostic devices, endoscopic display devices), fish finders, various measuring instruments, gauges (e.g., gauges for vehicles, aircraft, and ships), projectors, and the like.

[0211] [General definition of substituents] In this specification, C 1 -C 10 An alkyl group means a linear or branched aliphatic hydrocarbon monovalent group having 1 to 10 carbon atoms, and specific examples include a methyl group, an ethyl group, a propyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, a pentyl group, an iso-amyl group, and a hexyl group.

[0212] In this specification, C 2 -C 10 The alkenyl group is C 2 -C 10 It means a hydrocarbon group containing one or more carbon double bonds in the middle or at the end of the alkyl group, and specific examples thereof include an ethenyl group, a propenyl group, and a butenyl group.

[0213] In this specification, C 2 -C 10 The alkynyl group is C 2 -C 10 It means a hydrocarbon group containing one or more carbon triple bonds in the middle or at the end of the alkyl group, and specific examples thereof include an ethynyl group, a propynyl group, and the like.

[0214] In this specification, C 1 -C 10 The alkoxy group is -OA. 101 (Here, A 101 is C 1 -C 10 Specific examples of the aryl group include methoxy, ethoxy, and isopropyloxy groups.

[0215] In this specification, C 3 -C 10 Cycloalkyl groups are C 3 -C 10 It means a monovalent saturated hydrocarbon monocyclic group, and specific examples thereof include a cyclopropyl group, a cyclobutyl group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, and the like. 3 -C 10 The cycloalkylenyl group is C 3 -C 10 It means a divalent group having the same structure as a cycloalkyl group.

[0216] In this specification, a heterocycloalkyl group having 1 to 10 ring atoms means a monovalent monocyclic group having 1 to 10 ring atoms containing at least one heteroatom selected from N, O, Si, P, and S as a ring-forming atom, and specific examples thereof include a 1,2,3,4-oxatriazolidinyl group, a tetrahydrofuranyl group, a tetrahydrothiophenyl group, etc.

[0217] In this specification, C 3 -C 15 The cycloalkenyl group is C 3 -C 15 It means a monovalent monocyclic group that has at least one double bond in the ring but does not have aromaticity, and specific examples thereof include a cyclopentenyl group, a cyclohexenyl group, and a cycloheptenyl group.

[0218] In this specification, a heterocycloalkenyl group having 1 to 15 ring atoms is a monovalent monocyclic group having 1 to 15 ring atoms containing at least one heteroatom selected from N, O, Si, P, and S as a ring atom, and having at least one double bond within the ring. Specific examples of heterocycloalkenyl groups having 1 to 15 ring atoms include a 4,5-dihydro-1,2,3,4-oxatriazolyl group, a 2,3-dihydrofuranyl group, a 2,3-dihydrothiophenyl group, etc.

[0219] In this specification, C 6 -C 15 The aryl group is C 6 -C 15 C means a monovalent group having a carbocyclic aromatic system. 6 -C 15 Specific examples of the aryl group include a phenyl group, a naphthyl group, an anthracenyl group, a phenanthrenyl group, a pyrenyl group, and a chrysenyl group. 6 -C 15 When an aryl group contains more than one ring, the two or more rings may also be fused together.

[0220] In this specification, C 6 -C 15 The aryloxy group is -OA. 102 (Here, A 102 is C 6 -C 15 aryl group), C 6 -C 15 The arylthio group is -SA 103 (Here, A 103 is C 6 -C 15 aryl group).

[0221] In this specification, a heteroaryl group having 1-15 ring atoms means a monovalent group containing at least one heteroatom selected from N, O, Si, P, and S as a ring atom and having a heterocyclic aromatic system having 1 to 15 ring atoms. Specific examples of the heteroaryl group having 1-15 ring atoms include a pyridinyl group, a pyrimidinyl group, a pyrazinyl group, a pyridazinyl group, a triazinyl group, a quinolinyl group, an isoquinolinyl group, etc. When the heteroaryl group having 1-15 ring atoms contains two or more rings, the two or more rings may be condensed with each other.

[0222] In the present specification, a heteroaryloxy group having 1 to 15 ring atoms is represented by -OA. 104 (Here, A 104 is a heteroaryl group having 1 to 15 ring atoms, and a heteroarylthio group having 1 to 15 ring atoms is -SA 105 (Here, A 105 is a heteroaryl group having 1 to 15 ring atoms.

[0223] In this specification, a monovalent non-aromatic condensed polycyclic group having 1 to 15 ring atoms means a monovalent group (e.g., having 1 to 15 carbon atoms) in which two or more rings are condensed with each other, containing only carbon as ring atoms, and having non-aromaticity as the entire molecule. Specific examples of monovalent non-aromatic condensed polycyclic groups having 1 to 15 ring atoms include a fluorenyl group.

[0224] In the present specification, a monovalent non-aromatic condensed heteropolycyclic group having 1-15 ring atoms has two or more rings condensed together. The ring atom is carbon, and the ring atom contains at least one heteroatom selected from N, O, Si, P, and S, and the entire molecule has non-aromaticity (e.g., has 1 to 15 ring atoms). Specific examples of the monovalent non-aromatic condensed heteropolycyclic group having 1-15 ring atoms include a carbazolyl group.

[0225] In this specification, C 5 -C 15 A carbocyclic group refers to a monocyclic or polycyclic group having 5 to 15 carbon atoms and containing only carbon as ring-forming atoms. 5 -C 15 A carbocyclic group may be an aromatic carbocyclic group or a non-aromatic carbocyclic group. 5 -C 15 A carbocyclic group may be a ring, such as benzene, a monovalent group, such as a phenyl group, or a divalent group, such as a phenylenyl group. 5 -C 15 Depending on the number of substituents attached to the carbocyclic group, 5 -C 15 The carbocyclic group may be a trivalent or tetravalent group.

[0226] In the present specification, a heterocyclic group having 1 to 15 ring atoms is a C 5 -C 15 It means a group having the same structure as a carbocyclic group, but containing at least one heteroatom selected from N, O, Si, P and S in addition to carbon as ring-forming atoms.

[0227] As used herein, "Ph" means a phenyl group, "Me" means a methyl group, "Et" means an ethyl group, "ter-Bu" or "But" means a tert-butyl group, and "OMe" means a methoxy group.

[0228] In the present specification, the term "biphenylyl group" means a "biphenylyl group substituted with a phenyl group." 6 -C 60 It belongs to the "substituted biphenylyl group" which is an "aryl group."

[0229] In the present specification, the term "biphenylyl group" means a "biphenylyl group substituted with a biphenylyl group". 6 -C 60 Aryl-substituted C 6 -C 60 It belongs to the "substituted biphenylyl group" which is an "aryl group."

[0230] In this specification, unless otherwise defined, * and *' refer to bond sites to adjacent atoms in the chemical formula.

[0231] Hereinafter, the compound and the organic light emitting device according to an embodiment of the present invention will be described in more detail with reference to examples. EXAMPLES

[0232] Example 1 The substrate on which ITO / Ag / ITO was vapor-deposited as the anode was cut to a size of 50 mm x 50 mm x 0.5 mm, and ultrasonically cleaned for 5 minutes each using isopropyl alcohol and pure water, and then cleaned by irradiating with ultraviolet light and exposing to ozone for 30 minutes, and the ITO substrate was then placed in a vacuum vapor deposition apparatus.

[0233] m-MTDATA was evaporated on the top of the ITO substrate to form a 4 nm thick hole injection layer, then NPB was vacuum evaporated on the top of the hole injection layer to form a 1 nm thick hole transport layer, and compounds HT-09, ET08 and TBD-01 were co-evaporated in a weight ratio of 70:30:25 on the top of the hole transport layer to form a 30 nm thick light emitting layer. Compound ET-1 was used to form a 30 nm thick electron transport layer on the top of the light emitting layer. Al was evaporated on the top of the electron transport layer to form a 120 nm thick cathode, thereby producing an organic light emitting element.

[0234] Examples 2 to 5 and Comparative Examples 1 to 5

[0235] An organic light emitting device was prepared in the same manner as in Example 15, except that the light emitting layer was prepared using the compounds shown in Table 1 below.

[0236] Evaluation example The light emission, current efficiency and lifespan of the organic light-emitting devices fabricated in the above-mentioned Examples 1 to 5 and Comparative Examples 1 to 5 were measured at a current density of 10 mA / cm 2 The efficiency was measured using a Kethley SMU 236 and a luminance meter PR650, and the results are shown in Table 1. The lifetime was measured as the time it took for the luminance to reach 80% of the initial luminance. Furthermore, the efficiency change characteristics (roll-off characteristics) depending on the luminance of the organic light-emitting devices fabricated in Examples 1 to 5 and Comparative Examples 1 to 5 were measured, and the results are shown in Figs. 5 and 6. [Table 1] [ka] JPEG0007655701000072.jpg37147 JPEG0007655701000073.jpg36159 [ka] JPEG0007655701000075.jpg4139

[0237] It can be seen from Table 1 that the current efficiency and lifetime of the organic light emitting devices of Examples 1 to 5 are superior to those of the organic light emitting devices of Comparative Examples 1 to 5.

[0238] 5 and 6, it can be seen that the organic light-emitting devices of Examples 1 to 5 have a lower efficiency decrease phenomenon (excellent roll-off characteristics) at high luminance compared to the organic light-emitting devices of Comparative Examples 1 to 5.

[0239] As described above, the present invention has been described with reference to the embodiments shown in the drawings, but these are merely illustrative, and those skilled in the art will understand that various modifications and equivalent embodiments are possible therefrom. Therefore, the true technical scope of the present invention is determined by the technical ideas of the claims. [Explanation of symbols]

[0240] 10,20,30,40 Organic light-emitting devices 110 1st electrode 150 Organic layer 190 2nd electrode 210 First capping layer 220 Second Capping Layer

Claims

1. A first electrode; A second electrode; an organic layer interposed between the first electrode and the second electrode; the organic layer includes an emitting layer, the light-emitting layer comprises a first compound, a second compound, and a third compound; The first compound is represented by the following formula 1: The second compound is represented by the following formula 2: The third compound is represented by the following formula 3: The first compound, the second compound, and the third compound are different organic light-emitting devices: 【Chemistry 1】 (Chemical formula 1) 【Chemistry 2】 (Chemical formula 2) 【Chemistry 3】 (Chemical formula 3) In the above Chemical Formulas 1 to 3, A １１ is a group represented by the following chemical formula 10: 【Chemistry 4】 (Chemical formula 10) In the above Chemical Formula 10, R １０１ ~R １０８ are each independently hydrogen, deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, C １ -C １０ Alkyl group, C ２ -C １０ Alkenyl group, C ２ -C １０ Alkynyl group, C １ -C １０ Alkoxy group, C ３ -C １０ Cycloalkyl group, C １ -C １０ Heterocycloalkyl group, C ３ -C １５ Cycloalkenyl group, heterocycloalkenyl group having 1 to 15 ring atoms, C ６ -C １５ Aryl group, C ６ -C １５ Aryloxy group, C ６ -C １５ an arylthio group, a heteroaryl group having 1 to 15 ring atoms, a heteroaryloxy group having 1 to 15 ring atoms, a heteroarylthio group having 1 to 15 ring atoms, a monovalent non-aromatic condensed polycyclic group having 1 to 15 ring atoms, a monovalent non-aromatic heterocondensed polycyclic group having 1 to 15 ring atoms, -C(Q １ ) (Q ２ ) (Q ３ ), -Si(Q １ ) (Q ２ ) (Q ３ ), -B(Q １ ) (Q ２ ), -N(Q １ ) (Q ２ ), -P(Q １ ) (Q ２ ), -C(=O)(Q １ ), -S(=O)(Q １ ), -S(=O) ２ (Q １ ), -P(=O)(Q １ ) (Q2), and -P(=S) (Q １ ) (Q ２ ) is selected from k11 and k12 are independently selected from 1, 2, 3 and 4; R １１ represents hydrogen, deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, C １ -C １０ Alkyl group, C ２ -C １０ Alkenyl group, C ２ -C １０ Alkynyl group, C １ -C １０ Alkoxy group, C ３ -C １０ Cycloalkyl group, C １ -C １０ Heterocycloalkyl group, C ３ -C １５ Cycloalkenyl group, heterocycloalkenyl group having 1 to 15 ring atoms, C ６ -C １５ Aryl group, C ６ -C １５ Aryloxy group, C ６ -C １５ an arylthio group, a heteroaryl group having 1 to 15 ring atoms, a heteroaryloxy group having 1 to 15 ring atoms, a heteroarylthio group having 1 to 15 ring atoms, a monovalent non-aromatic condensed polycyclic group having 1 to 15 ring atoms, a monovalent non-aromatic heterocondensed polycyclic group having 1 to 15 ring atoms, -C(Q １ ) (Q ２ ) (Q ３ ), -Si(Q １ ) (Q ２ ) (Q ３ ), -B(Q １ ) (Q ２ ), -N(Q １ ) (Q ２ ), -P(Q １ ) (Q ２ ), -C(=O)(Q １ ), -S(=O)(Q １ ), -S(=O) ２ (Q １ ), -P(=O)(Q １ ) (Q ２ ), and -P(=S)(Q １ ) (Q ２ ) is selected from L ２１ is C ６ -C １５ Aryl group, C ６ -C １５ Aryloxy group, C ６ -C １５ an arylthio group, a heteroaryl group having 1 to 15 ring atoms, a heteroaryloxy group having 1 to 15 ring atoms, a heteroarylthio group having 1 to 15 ring atoms, a monovalent non-aromatic condensed polycyclic group having 1 to 15 ring atoms, a monovalent non-aromatic heterocondensed polycyclic group having 1 to 15 ring atoms, -C(Q ３１ ) (Q ３２ ) (Q ３３ ), -Si(Q ３１ ) (Q ３２ ) (Q ３３ ), -B(Q ３１ ) (Q ３２ ), -N(Q ３１ ) (Q ３２ ), -P(Q ３１ ) (Q ３２ ), -C(=O)(Q １ ), -S(=O)(Q ３１ ), -S(=O) ２ (Q ３１ ), -P(=O)(Q ３１ ) (Q ３２ ), and -P(=S)(Q ３１ ) (Q ３２ ) or a divalent C ５ -C １５ a carbocyclic group, and a divalent heterocyclic group having 1 to 15 ring atoms; a21 is selected from 1 and 2; R ２１ represents deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, C １ -C １０ Alkyl group, C ２ -C １０ Alkenyl group, C ２ -C １０ Alkynyl group, C １ -C １０ Alkoxy group, C ３ -C １０ Cycloalkyl group, C １ -C １０ Heterocycloalkyl group, C ３ -C １５ Cycloalkenyl group, heterocycloalkenyl group having 1 to 15 ring atoms, C ６ -C １５ Aryl group, C ６ -C １５ Aryloxy group, C ６ -C １５ an arylthio group, a heteroaryl group having 1 to 15 ring atoms, a heteroaryloxy group having 1 to 15 ring atoms, a heteroarylthio group having 1 to 15 ring atoms, a monovalent non-aromatic condensed polycyclic group having 1 to 15 ring atoms, a monovalent non-aromatic heterocondensed polycyclic group having 1 to 15 ring atoms, -C(Q ３１ ) (Q ３２ ) (Q ３３ ), -Si(Q ３１ ) (Q ３２ ) (Q ３３ ), -B(Q ３１ ) (Q ３２ ), -N(Q ３１ ) (Q ３２ ), -P(Q ３１ ) (Q ３２ ), -C(=O)(Q １ ), -S(=O)(Q ３１ ), -S(=O) ２ (Q ３１ ), -P(=O)(Q ３１ ) (Q ３２ ), and -P(=S)(Q ３１ ) (Q ３２ ) or unsubstituted with at least one substituent selected from the group consisting of -C(Q １ ) (Q ２ ) (Q ３ ), -Si(Q １ ) (Q ２ ) (Q ３ ), -B(Q １ ) (Q ２ ), -N(Q １ ) (Q ２ ), -P(Q １ ) (Q ２ ), -C(=O)(Q １ ), -S(=O)(Q １ ), -S(=O) ２ (Q １ ), -P(=O)(Q １ ) (Q ２ ) and -P(=S)(Q １ ) (Q ２ ) is selected from L ２２ ~L ２３ are each independently deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, C １ -C １０ Alkyl group, C ２ -C １０ Alkenyl group, C ２ -C １０ Alkynyl group, C １ -C １０ Alkoxy group, C ３ -C １０ Cycloalkyl group, C １ -C １０ Heterocycloalkyl group, C ３ -C １５ Cycloalkenyl group, heterocycloalkenyl group having 1 to 15 ring atoms, C ６ -C １５ Aryl group, C ６ -C １５ Aryloxy group, C ６ -C １５ an arylthio group, a heteroaryl group having 1 to 15 ring atoms, a heteroaryloxy group having 1 to 15 ring atoms, a heteroarylthio group having 1 to 15 ring atoms, a monovalent non-aromatic condensed polycyclic group having 1 to 15 ring atoms, a monovalent non-aromatic heterocondensed polycyclic group having 1 to 15 ring atoms, -C(Q ３１ ) (Q ３２ ) (Q ３３ ), -Si(Q ３１ ) (Q ３２ ) (Q ３３ ), -B(Q ３１ ) (Q ３２ ), -N(Q ３１ ) (Q ３２ ), -P(Q ３１ ) (Q ３２ ), -C(=O)(Q １ ), -S(=O)(Q ３１ ), -S(=O) ２ (Q ３１ ), -P(=O)(Q ３１ ) (Q ３２ ), and -P(=S)(Q ３１ ) (Q ３２ ) or a divalent C ５ -C １５ a carbocyclic group, and a divalent heterocyclic group having 1 to 15 ring atoms; a22 to a23 are each independently selected from 0, 1, and 2; R ２２ ~R ２３ are each independently deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, C １ -C １０ Alkyl group, C ２ -C １０ Alkenyl group, C ２ -C １０ Alkynyl group, C １ -C １０ Alkoxy group, C ３ -C １０ Cycloalkyl group, C １ -C １０ Heterocycloalkyl group, C ３ -C １５ Cycloalkenyl group, heterocycloalkenyl group having 1 to 15 ring atoms, C ６ -C １５ Aryl group, C ６ -C １５ Aryloxy group, C ６ -C １５ an arylthio group, a heteroaryl group having 1 to 15 ring atoms, a heteroaryloxy group having 1 to 15 ring atoms, a heteroarylthio group having 1 to 15 ring atoms, a monovalent non-aromatic condensed polycyclic group having 1 to 15 ring atoms, a monovalent non-aromatic heterocondensed polycyclic group having 1 to 15 ring atoms, -C(Q ３１ ) (Q ３２ ) (Q ３３ ), -Si(Q ３１ ) (Q ３２ ) (Q ３３ ), -B(Q ３１ ) (Q ３２ ), -N(Q ３１ ) (Q ３２ ), -P(Q ３１ ) (Q ３２ ), -C(=O)(Q １ ), -S(=O)(Q ３１ ), -S(=O) ２ (Q ３１ ), -P(=O)(Q ３１ ) (Q ３２ ), and -P(=S)(Q ３１ ) (Q ３２ ) substituted or unsubstituted with at least one substituent selected from ３ -C １５ Cycloalkenyl group, heterocycloalkenyl group having 1 to 15 ring atoms, C ６ -C １５ Aryl group, C ６ -C １５ Aryloxy group, C ６ -C １５ arylthio groups, heteroaryl groups having 1 to 15 ring atoms, heteroaryloxy groups having 1 to 15 ring atoms, heteroarylthio groups having 1 to 15 ring atoms, monovalent non-aromatic condensed polycyclic groups having 1 to 15 ring atoms, and monovalent non-aromatic condensed polycyclic heterocyclic groups having 1 to 15 ring atoms; and -C(Q １ ) (Q ２ ) (Q ３ ), -Si(Q １ ) (Q ２ ) (Q ３ ), -B(Q １ ) (Q ２ ), -N(Q １ ) (Q ２ ), -P(Q １ ) (Q ２ ), -C(=O)(Q １ ), -S(=O)(Q １ ), -S(=O) ２ (Q １ ), -P(=O)(Q １ ) (Q ２ ) and -P(=S)(Q １ ) (Q ２ ) is selected from X ３１ is N(R ３９ ) and C(R ３９ ) (R ４０ ) is selected from R ３１ ~R ４０ are each independently *-(L ３１ ) ａ３１ -A ３１ groups represented by the formula (I), hydrogen, deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, C １ -C １０ Alkyl group, C ２ -C １０ Alkenyl group, C ２ -C １０ Alkynyl group, C １ -C １０ Alkoxy group, C ３ -C １０ Cycloalkyl group, C １ -C １０ Heterocycloalkyl group, C ３ -C １５ Cycloalkenyl group, heterocycloalkenyl group having 1 to 15 ring atoms, C ６ -C １５ Aryl group, C ６ -C １５ Aryloxy group, C ６ -C １５ an arylthio group, a heteroaryl group having 1 to 15 ring atoms, a heteroaryloxy group having 1 to 15 ring atoms, a heteroarylthio group having 1 to 15 ring atoms, a monovalent non-aromatic condensed polycyclic group having 1 to 15 ring atoms, a monovalent non-aromatic heterocondensed polycyclic group having 1 to 15 ring atoms, -C(Q １ ) (Q ２ ) (Q ３ ), -Si(Q １ ) (Q ２ ) (Q ３ ), -B(Q １ ) (Q ２ ), -N(Q １ ) (Q ２ ), -P(Q １ ) (Q ２ ), -C(=O)(Q １ ), -S(=O)(Q １ ), -S(=O) ２ (Q １ ), -P(=O)(Q １ ) (Q ２ ), and -P(=S)(Q １ ) (Q ２ ), where R ３１ ~R ３９ And at least one is *-(L ３１ ) ａ３１ -A ３１ is a group represented by L ３１ represents deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, C １ -C １０ Alkyl group, C ２ -C １０ Alkenyl group, C ２ -C １０ Alkynyl group, C １ -C １０ Alkoxy group, C ３ -C １０ Cycloalkyl group, C １ -C １０ Heterocycloalkyl group, C ３ -C １５ Cycloalkenyl group, heterocycloalkenyl group having 1 to 15 ring atoms, C ６ -C １５ Aryl group, C ６ -C １５ Aryloxy group, C ６ -C １５ an arylthio group, a heteroaryl group having 1 to 15 ring atoms, a heteroaryloxy group having 1 to 15 ring atoms, a heteroarylthio group having 1 to 15 ring atoms, a monovalent non-aromatic condensed polycyclic group having 1 to 15 ring atoms, a monovalent non-aromatic heterocondensed polycyclic group having 1 to 15 ring atoms, -C(Q ３１ ) (Q ３２ ) (Q ３３ ), -Si(Q ３１ ) (Q ３２ ) (Q ３３ ), -B(Q ３１ ) (Q ３２ ), -N(Q ３１ ) (Q ３２ ), -P(Q ３１ ) (Q ３２ ), -C(=O)(Q １ ), -S(=O)(Q ３１ ), -S(=O) ２ (Q ３１ ), -P(=O)(Q ３１ ) (Q ３２ ), and -P(=S)(Q ３１ ) (Q ３２ phenylene radicals which may or may not be substituted with at least one substituent selected from a31 is selected from 1, 2 and 3; A ３１ represents deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, C １ -C １０ Alkyl group, C ２ -C １０ Alkenyl group, C ２ -C １０ Alkynyl group, C １ -C １０ Alkoxy group, C ３ -C １０ Cycloalkyl group, C １ -C １０ Heterocycloalkyl group, C ３ -C １５ Cycloalkenyl group, heterocycloalkenyl group having 1 to 15 ring atoms, C ６ -C １５ Aryl group, C ６ -C １５ Aryloxy group, C ６ -C １５ an arylthio group, a heteroaryl group having 1 to 15 ring atoms, a heteroaryloxy group having 1 to 15 ring atoms, a heteroarylthio group having 1 to 15 ring atoms, a monovalent non-aromatic condensed polycyclic group having 1 to 15 ring atoms, a monovalent non-aromatic heterocondensed polycyclic group having 1 to 15 ring atoms, -C(Q ３１ ) (Q ３２ ) (Q ３３ ), -Si(Q ３１ ) (Q ３２ ) (Q ３３ ), -B(Q ３１ ) (Q ３２ ), -N(Q ３１ ) (Q ３２ ), -P(Q ３１ ) (Q ３２ ), -C(=O)(Q １ ), -S(=O)(Q ３１ ), -S(=O) ２ (Q ３１ ), -P(=O)(Q ３１ ) (Q ３２ ), and -P(=S)(Q ３１ ) (Q ３２ a carbazolyl group and a fluorenyl group, each of which may or may not be substituted with at least one substituent selected from Q １ ~Q ３ , and Q ３１ ~Q ３３ are each independently hydrogen, deuterium, -F, -Cl, -Br, -I, C １ -C １０ Alkyl group, C ２ -C １０ Alkenyl group, C ２ -C １０ Alkynyl group, C １ -C １０ Alkoxy group, C ３ -C １０ Cycloalkyl group, C １ -C １０ Heterocycloalkyl group, C ３ -C １５ Cycloalkenyl group, heterocycloalkenyl group having 1 to 15 ring atoms, C ６ -C １５ Aryl group, C ６ -C １５ Aryloxy group, C ６ -C １５ is selected from an arylthio group, a heteroaryl group having 1 to 15 ring atoms, a heteroaryloxy group having 1 to 15 ring atoms, a heteroarylthio group having 1 to 15 ring atoms, a monovalent non-aromatic condensed polycyclic group having 1 to 15 ring atoms, a monovalent non-aromatic heterocondensed polycyclic group having 1 to 15 ring atoms, a biphenylyl group, and a biphenylyl group; * indicates a bonding site with an adjacent atom.

2. The organic light-emitting device according to claim 1 , wherein k11 and k12 are each independently selected from the group consisting of 1 and 2.

3. The organic light emitting device according to claim 1, wherein the first compound is represented by any one of the following formulas 1-1 to 1-58: 【Chemistry 5】 【change】 【change】 【change】 【change】 In the above Chemical Formulas 1-1 to 1-58, A １１ａ and A １１ｂ are each A in Chemical Formula 1. １１ See the definition of R １１ａ , R １１ｂ and R １１ｃ are R １１ See definition of.

4. A １１ The organic light-emitting device according to claim 1, wherein the organic light-emitting element is represented by any one of the following chemical formulas 10-1 and 10-2: 【Chemistry 6】 In the formulas 10-1 and 10-2, R １０３ and R １０６ are each independently selected from the group consisting of -F, cyano, pyridinyl, pyrazinyl, pyridazinyl, pyrimidinyl, triazinyl, quinolinyl, isoquinolinyl, benzoquinolinyl, benzoisoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, benzoquinoxalinyl, benzoquinazolinyl, azafluorenyl, azacarbazolyl, azadibenzofuranyl, azadibenzothiophenyl, diazafluorenyl, diazacarbazolyl, diazadibenzofuranyl and diazadibenzothiophenyl; * indicates a bonding site with an adjacent atom.

5. R １１ represents hydrogen, deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, C １ -C １０ Alkyl group, C ３ -C １５ Cycloalkenyl group, heterocycloalkenyl group having 1 to 15 ring atoms, C ６ -C １５ and wherein the ring is substituted or unsubstituted, and the ring is substituted or unsubstituted. The organic light-emitting device according to claim 1 .

6. R １１ The organic light-emitting device according to claim 1 , wherein is hydrogen.

7. L 22-L ２３ are each independently deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, C １ -C １０ Alkyl group, C １ -C １０ and is substituted or unsubstituted with at least one substituent selected from an alkoxy group, a phenyl group, a biphenylyl group, a naphthyl group, a phenalenyl group, an anthracenyl group, a phenanthrenyl group, a pyridinyl group, a pyrazinyl group, a pyridazinyl group, a pyrimidinyl group, a triazinyl group, a quinolinyl group, an isoquinolinyl group, a benzoquinolinyl group, a benzoisoquinolinyl group, a phthalazinyl group, a naphthyridinyl group, a quinoxalinyl group, a quinazolinyl group, a benzoquinoxalinyl group, a benzoquinazolinyl group, a fluorenyl group, a carbazolyl group, a dibenzofuranyl group, a dibenzothiophenyl group, an azafluorenyl group, an azacarbazolyl group, an azadibenzofuranyl group, an azadibenzothiophenyl group, a diazafluorenyl group, a diazacarbazolyl group, a diazadibenzofuranyl group, and a diazadibenzothiophenyl group. not included, phenylene group, naphthylene group, phenalenylene group, anthracenylene group, phenanthrenylene group, pyridinylene group, pyrimidinylene group, pyrazinylene group, pyridazinylene group, triazinylene group, quinolinylene group, isoquinolinylene group, benzoquinolinylene group, benzoisoquinolinylene group, phthalazinylene group, naphthyridinylene group, quinoxalinylene group, quinazolinylene group, benzoquinoxalylene group, a quinazolinylene group, a fluorenylene group, a carbazolylenylene group, a dibenzofuranylene group, a dibenzothiophenylene group, an azafluorenylene group, an azacarbazolylene group, an azadibenzofuranylene group, an azadibenzothiophenylene group, a diazafluorenylene group, a diazacarbazolylene group, a diazadibenzofuranylene group, and a diazadibenzothiophenylene group; The organic light emitting device according to claim 1, wherein a22 and a23 are each independently selected from the group consisting of 0 and 1.

8. R22~R ２３ are each independently deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, C １ -C １０ Alkyl group, C １ -C １０ an alkoxy group, a phenyl group, a biphenylyl group, a naphthyl group, a phenalenyl group, an anthracenyl group, a phenanthrenyl group, a pyridinyl group, a pyrazinyl group, a pyridazinyl group, a pyrimidinyl group, a triazinyl group, a quinolinyl group, an isoquinolinyl group, a benzoquinolinyl group, a benzoisoquinolinyl group, a phthalazinyl group, a naphthyridinyl group, a quinoxalinyl group, a quinazolinyl group, a benzoquinoxalinyl group, a benzoquinazolinyl group, a fluorenyl group, a carbazolyl group, a dibenzofuranyl group, a dibenzothiophenyl group, an azafluorenyl group, an azacarbazolyl group, an azadibenzofuranyl group, an azadibenzothiophenyl group, a diazafluorenyl group, a diazacarbazolyl group, a diazadibenzofuranyl group, a diazadibenzothiophenyl group, -C(Q ３１ ) (Q ３２ ) (Q ３３ ), -Si(Q ３１ ) (Q ３２ ) (Q ３３ ), -B(Q ３１ ) (Q ３２ ), -N(Q ３１ ) (Q ３２ ), -P(Q ３１ ) (Q ３２ ), -C(=O)(Q １ ), -S(=O)(Q ３１ ), -S(=O) ２ (Q ３１ ), -P(=O)(Q ３１ ) (Q ３２ ) and -P(=S)(Q ３１ ) (Q ３２ a phenyl group, a biphenylyl group, a naphthyl group, a phenalenyl group, an anthracenyl group, a phenanthrenyl group, a pyridinyl group, a pyrazinyl group, a pyridazinyl group, a pyrimidinyl group, a triazinyl group, a quinolinyl group, an isoquinolinyl group, a benzoquinolinyl group, a benzoisoquinolinyl group, a phthalazinyl group, a naphthyridinyl group, a quinoxalinyl group, a quinazolinyl group, a benzoquinoxalinyl group, a benzoquinazolinyl group, a fluorenyl group, a carbazolyl group, a dibenzofuranyl group, a dibenzothiophenyl group, an azafluorenyl group, an azacarbazolyl group, an azadibenzofuranyl group, an azadibenzothiophenyl group, a diazafluorenyl group, a diazacarbazolyl group, a diazadibenzofuranyl group, and a diazadibenzothiophenyl group; and -C(Q １ ) (Q ２ ) (Q ３ ), -Si(Q １ ) (Q ２ ) (Q ３ ), -B(Q １ ) (Q ２ ), -N(Q １ ) (Q ２ ), -P(Q １ ) (Q ２ ), -C(=O)(Q １ ), -S(=O)(Q １ ), -S(=O) ２ (Q １ ), -P(=O)(Q １ ) (Q ２ ) and -P(=S)(Q １ ) (Q ２ ) is selected from Q １ ~Q ３ , and Q ３１ ~Q ３３ are each independently selected from the group consisting of a phenyl group, a biphenylyl group, a naphthyl group, a phenalenyl group, an anthracenyl group, a phenanthrenyl group, a pyridinyl group, a pyrazinyl group, a pyridazinyl group, a pyrimidinyl group, a triazinyl group, a quinolinyl group, an isoquinolinyl group, a benzoquinolinyl group, a benzoisoquinolinyl group, a phthalazinyl group, a naphthyridinyl group, a quinoxalinyl group, a quinazolinyl group, a benzoquinoxalinyl group, a benzoquinazolinyl group, a fluorenyl group, a carbazolyl group, a dibenzofuranyl group, a dibenzothiophenyl group, an azafluorenyl group, an azacarbazolyl group, an azadibenzofuranyl group, an azadibenzothiophenyl group, a diazafluorenyl group, a diazacarbazolyl group, a diazadibenzofuranyl group, and a diazadibenzothiophenyl group.

9. R22~R ２３ At least one of the following formula 7-1, the following formula 7-2, -C(Q １ ) (Q ２ ) (Q ３ ), and -Si(Q １ ) (Q ２ ) (Q ３ The organic light-emitting device according to claim 1, characterized in that the organic light-emitting device is selected from the group consisting of: 【Chemistry 7】 (Chemical formula 7-1) 【Chemistry 8】 (Chemical formula 7-2) In the above formulas 7-1 and 7-2, Y ７１ is a phenyl group, a biphenylyl group, a naphthyl group, a phenalenyl group, an anthracenyl group, a phenanthrenyl group, a fluorenyl group, a carbazolyl group, a dibenzofuranyl group, a dibenzothiophenyl group, -C(Q ３１ ) (Q ３２ ) (Q ３３ ) and -Si(Q ３１ ) (Q ３２ ) (Q ３３ ) is selected from R ７１ ~R ７４ are each independently hydrogen, deuterium, C １ -C １０ An alkyl group, a phenyl group, a biphenylyl group, a naphthyl group, a phenalenyl group, an anthracenyl group, a phenanthrenyl group, a fluorenyl group, a carbazolyl group, a dibenzofuranyl group, a dibenzothiophenyl group, -C(Q ３１ ) (Q ３２ ) (Q ３３ ) and -Si(Q ３１ ) (Q ３２ ) (Q ３３ ) is selected from Q １ ~Q ３ , and Q ３１ ~Q ３３ are each independently selected from the group consisting of a phenyl group, a biphenylyl group, a naphthyl group, a phenalenyl group, an anthracenyl group, a phenanthrenyl group, a fluorenyl group, a carbazolyl group, a dibenzofuranyl group, and a dibenzothiophenyl group; * indicates a bonding site with an adjacent atom.

10. X ３１ is N(R ３９ 2. The organic light-emitting device according to claim 1,

11. R ３１ ~R ４０ are each independently *-(L ３１ ) ａ３１ -A ３１ groups represented by the formula (I), hydrogen, deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, C １ -C １０ Alkyl group, C １ -C １０ is selected from the group consisting of an alkoxy group, a phenyl group, a biphenylyl group, a naphthyl group, a phenalenyl group, an anthracenyl group, a phenanthrenyl group, a fluorenyl group, a carbazolyl group, a dibenzofuranyl group, and a dibenzothiophenyl group; ３１ ~R ３９ And at least one is *-(L ３１ ) ａ３１ -A ３１ The organic light-emitting element according to claim 1 , wherein the group is represented by the formula:

12. L ３１ is an unsubstituted or substituted phenylene group which is substituted with at least one substituent selected from the group consisting of a phenyl group, a biphenylyl group, a naphthyl group, a phenalenyl group, an anthracenyl group, a phenanthrenyl group, a fluorenyl group, a carbazolyl group, a dibenzofuranyl group, and a dibenzothiophenyl group; The organic light-emitting device according to claim 1 , wherein a31 is selected from the group consisting of 1 and 2.

13. A ３１ The organic light-emitting device according to claim 1, wherein the organic light-emitting device is represented by any one of the following chemical formulas 8-1 to 8-5: 【Chemistry 9】 In the chemical formulas 8-1 to 8-5, R ８１ ~R ８９ are each independently selected from hydrogen, a phenyl group, a biphenylyl group, a naphthyl group, a phenalenyl group, an anthracenyl group, a phenanthrenyl group, a fluorenyl group, a carbazolyl group, a dibenzofuranyl group, and a dibenzothiophenyl group; * indicates a bonding site with an adjacent atom.

14. The organic light emitting device according to claim 1, wherein the third compound is represented by any one of the following formulas 3-1 to 3-5: 【Chemistry 10】 In the above chemical formulas 3-1 to 3-5, L ３１ , a31, A ３１ , and R ３１ ~R ３９ are defined in Chemical Formula 3 above.

15. The first compound is selected from Group I: The second compound is selected from the following Group II: The organic light-emitting device according to claim 1 , wherein the third compound is selected from the group III: <Group I> 【Chemistry 11】 【change】 【change】 【change】 【change】 <Group II> 【Chemistry 12】 【change】 【change】 【change】 【change】 <Group III> 【Chemistry 12】 【change】 【change】 。

16. The organic light emitting device according to claim 1 , wherein the first compound is a delayed fluorescent emitter.

17. The organic light emitting device according to claim 1 , wherein the first compound has a maximum emission wavelength in the range of 450 nm to 550 nm.

18. The organic light emitting device according to claim 1 , wherein the organic light emitting device emits delayed fluorescence in the range of 450 nm to 550 nm.

19. the first electrode is an anode; the second electrode is a cathode; the organic layer further comprises a hole transport region disposed between the first electrode and the light-emitting layer, and / or an electron transport region disposed between the light-emitting layer and the second electrode; the hole transport region includes a hole injection layer, a hole transport layer, a light-emitting auxiliary layer, an electron blocking layer, or any combination thereof; The organic light emitting device of claim 1 , wherein the electron transport region comprises a hole blocking layer, an electron transport layer, an electron injection layer, or any combination thereof.

20. 20. A device comprising: a thin film transistor including a source electrode, a drain electrode, and an active layer; and an organic light emitting element according to claim 1 , wherein a first electrode of the organic light emitting element is electrically connected to one of the source electrode and the drain electrode of the thin film transistor.

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