Organic light-emitting device and electronic device including the same

Abstract

An organic light-emitting device and an electronic device including the organic light-emitting device are provided. The organic light-emitting device includes: a first electrode, a second electrode facing the first electrode, m light-emitting units stacked between the first electrode and the second electrode and including at least one emissive layer; and m-1 charge generation layers, each located between two adjacent ones of the m light-emitting units and including an n-type charge generation layer and a p-type charge generation layer, wherein m is an integer of 2 or greater, at least one of the m-1 p-type charge generation layers includes a first doped layer and a second doped layer, the first doped layer includes a first organic material and a first inorganic material, the second doped layer includes a second organic material and a second inorganic material, and the first inorganic material and the second inorganic material are different from each other.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to and the benefit of Korean Patent Application No. 10-2020-0072601, filed on June 15, 2020, in the Korean Intellectual Property Office, the entire contents of which are incorporated herein by reference. Technical Field

[0003] One or more aspects of embodiments of the present disclosure relate to an organic light-emitting device and an electronic device including the same. Background Art

[0004] Organic light-emitting devices are self-emitting devices that have a wide viewing angle, a high contrast ratio, and / or a short response time, and may exhibit excellent characteristics in terms of brightness, driving voltage, and / or response speed.

[0005] An example of an organic light-emitting device (or OLED) includes a first electrode on a substrate, and a hole transport region, an emission layer, an electron transport region, and a second electrode sequentially stacked on the first electrode. Holes provided from the first electrode can move toward the emission layer through the hole transport region, and electrons provided from the second electrode can move toward the emission layer through the electron transport region. Carriers (such as holes and electrons) can recombine in the emission layer to generate excitons. These excitons transition from an excited state to a ground state, thereby generating light. Summary of the Invention

[0006] One or more aspects of embodiments of the present disclosure are directed to organic light-emitting devices having high efficiency and a long lifespan.

[0007] Additional aspects will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the presented embodiments of the disclosure.

[0008] One or more example embodiments of the present disclosure provide an organic light-emitting device including:

[0009] the first electrode,

[0010] a second electrode facing the first electrode,

[0011] m light emitting units stacked between the first electrode and the second electrode and each including at least one emission layer, and

[0012] m-1 charge generation layers, each located between two adjacent light-emitting units in the m light-emitting units and including an n-type charge generation layer and a p-type charge generation layer,

[0013] Where m is an integer of 2 or greater,

[0014] At least one of the m-1 p-type charge generation layers includes a first doping layer and a second doping layer,

[0015] The first doping layer includes a first organic material and a first inorganic material,

[0016] The second doping layer includes a second organic material and a second inorganic material, and

[0017] The first inorganic material and the second inorganic material are different from each other.

[0018] One or more example embodiments of the present disclosure provide an electronic device including an organic light-emitting device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and other aspects, features and advantages of certain embodiments of the present disclosure will become more apparent from the following description taken in conjunction with the accompanying drawings, in which:

[0020] Figures 1 to 3 each being a schematic cross-sectional view of an organic light-emitting device according to an embodiment; and

[0021] Figure 4 A schematic cross-sectional view of an electronic device according to an embodiment is shown. DETAILED DESCRIPTION

[0022] Reference will now be made in more detail to embodiments, examples of which are shown in the accompanying drawings, wherein like reference numerals refer to like elements throughout, and a repeated description thereof may not be provided. In this regard, the present embodiments may have different forms and should not be construed as being limited to the description set forth herein. Accordingly, the embodiments are described below solely with reference to the accompanying drawings to illustrate various aspects of the present description. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items. Throughout this disclosure, the expression "at least one of a, b, and c" may refer to only a, only b, only c, both a and b, both a and c, both b and c, all of a, b, and c, or variations thereof.

[0023] Singular expressions and forms such as “a”, “an” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise.

[0024] It will be further understood that the terms “include,” “including,” “comprise,” and / or “comprising” as used herein specify the presence of stated features or elements, but do not preclude the presence or addition of one or more other features or elements.

[0025] It should be understood that when a layer, region, or element is referred to as being "formed on" another layer, region, or element, it can be directly or indirectly formed on the other layer, region, or element. That is, for example, intervening layers, regions, or elements may be present. When an element is referred to as being "directly on" another element, there are no intervening elements present.

[0026] For the convenience of explanation, the size of the elements in the drawings may be exaggerated. In other words, since the size and thickness of the components in the drawings are arbitrarily shown for the convenience of explanation, the following embodiments are not limited thereto.

[0027] The term "organic layer" as used herein may refer to a single layer and / or a plurality of layers located between an anode and a cathode of an organic light-emitting device. Materials included in the "organic layer" are not limited to organic materials.

[0028] As used herein, the expression “(the organic layer) includes the compound represented by Formula 1” may refer to a case where “(the organic layer) includes one compound of Formula 1, or two or more different compounds of Formula 1”.

[0029] Hereinafter, embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings.

[0030] According to one or more embodiments, an organic light-emitting device includes:

[0031] the first electrode,

[0032] a second electrode facing the first electrode,

[0033] m light emitting units stacked between the first electrode and the second electrode and each including at least one emission layer; and

[0034] m-1 charge generation layers, each located between two adjacent light-emitting units in the m light-emitting units and including an n-type charge generation layer and a p-type charge generation layer,

[0035] Wherein m can be an integer of 2 or greater,

[0036] At least one of the m-1 p-type charge generation layers includes a first doping layer and a second doping layer,

[0037] The first doping layer includes a first organic material and a first inorganic material,

[0038] The second doping layer includes a second organic material and a second inorganic material, and

[0039] The first inorganic material is different from the second inorganic material.

[0040] Figure 1is a schematic cross-sectional view of an organic light-emitting device 10 according to an embodiment. The organic light-emitting device 10 includes a first electrode 110, a second electrode 190 facing the first electrode 110, and an organic layer 150 located between the first electrode 110 and the second electrode 190. The organic layer 150 may include m light-emitting units 153 stacked between the first electrode 110 and the second electrode 190, and m-1 charge generation layers 155, each of the m-1 charge generation layers 155 being located between two adjacent light-emitting units among the m light-emitting units 153 and including an n-type charge generation layer 155N and a p-type charge generation layer 155P, wherein at least one of the m-1 p-type charge generation layers 155P may include a first doping layer 155P' and a second doping layer 155P".

[0041] The number of m light emitting units 153 is not limited as long as it can emit light. In an embodiment, each light emitting unit 153 may include one or more emission layers. In one or more embodiments, the light emitting units 153 may each further include an organic layer different from the emission layer.

[0042] The number of m light emitting units 153 (eg, diversity) can be selected as needed, ie, m, and the upper limit of the number is not limited. In an embodiment, the organic light emitting device 10 may include two, three, four, or five light emitting units 153 .

[0043] In the organic light-emitting device 10 according to the embodiment, m may be 2 or 3, but is not limited thereto.

[0044] In an embodiment, the maximum emission wavelength of light emitted from at least one of the m light-emitting units 153 may be different from the maximum emission wavelength of light emitted from at least one of the remaining light-emitting units. For example, at least two of the m light-emitting units 153 may emit light of different or distinct maximum emission wavelengths. In an embodiment, in the organic light-emitting device 10 in which a first light-emitting unit and a second light-emitting unit are stacked, the maximum emission wavelength of light emitted from the first light-emitting unit may be different from the maximum emission wavelength of light emitted from the second light-emitting unit. In this case, the emission layer of the first light-emitting unit and the emission layer of the second light-emitting unit may each independently have i) a single-layer structure including a single material (e.g., consisting of a single material), ii) a single-layer structure including a plurality of different materials (e.g., consisting of a plurality of different materials), and iii) a multilayer structure having a plurality of layers including a plurality of different materials (e.g., consisting of a plurality of different materials). Therefore, the light emitted from the first light-emitting unit and the second light-emitting unit may each independently be single-color light or mixed-color light. In an embodiment, in the organic light-emitting device 10 in which the first light-emitting unit, the second light-emitting unit, and the third light-emitting unit are stacked, the maximum emission wavelength of light emitted from the first light-emitting unit may be the same as the maximum emission wavelength of light emitted from the second light-emitting unit, but different from the maximum emission wavelength of light emitted from the third light-emitting unit. In an embodiment, the maximum emission wavelength of light emitted from the first light-emitting unit, the maximum emission wavelength of light emitted from the second light-emitting unit, and the maximum emission wavelength of light emitted from the third light-emitting unit may be different from each other.

[0045] In an embodiment, the maximum emission wavelengths of light emitted from the m light emitting units 153 may all be the same. In an embodiment, in the organic light emitting device 10 in which the first light emitting unit, the second light emitting unit, and the third light emitting unit are stacked, the maximum emission wavelength of light emitted from the first light emitting unit, the maximum emission wavelength of light emitted from the second light emitting unit, and the maximum emission wavelength of light emitted from the third light emitting unit may be the same as each other.

[0046] In an embodiment, the light emitted from each (all) of the m light emitting units 153 may be blue light, and the maximum emission wavelength of the light emitted from each light emitting unit may all be the same. The blue light may have a maximum emission wavelength of about 440 nm to about 475 nm.

[0047] In an embodiment, m may be an integer of 3 or greater, and maximum emission wavelengths of light emitted from at least three of the m light emitting cells 153 may be identical to each other.

[0048] In one or more embodiments, m may be an integer of 3 or greater, and at least three of the m light emitting units 153 may emit the first color light. In one or more embodiments, the organic light emitting device 10 may further include a light emitting unit emitting a second color light different from the first color light.

[0049] In an embodiment, in an organic light-emitting device 10 in which a first light-emitting unit, a second light-emitting unit, and a third light-emitting unit are stacked, the first light-emitting unit, the second light-emitting unit, and the third light-emitting unit may all emit a first color light. In one or more embodiments, the organic light-emitting device 10 may further include a fourth light-emitting unit, and the fourth light-emitting unit may emit a second color light different from the first color light. In this case, the position of the fourth light-emitting unit is not limited. In an embodiment, the first color light may be blue light, but is not limited thereto.

[0050] In one or more embodiments, the maximum emission wavelength of light emitted from the m light emitting units 153 may be independently about 370 nm to about 780 nm. In an embodiment, the maximum emission wavelength of light emitted from the m light emitting units 153 may be independently about 435 nm to about 500 nm, about 500 nm to about 580 nm, or about 580 nm to about 780 nm.

[0051] The organic light-emitting device 10 may include a charge generation layer 155 between two adjacent light-emitting units among the m light-emitting units 153. Herein, the term "adjacent" refers to an arrangement or spatial relationship in which elements (layers) referred to as adjacent or adjacent to each other are such layers that are closest to each other. In an embodiment, the term "two adjacent light-emitting units" as used herein refers to two light-emitting units that are placed closest to each other among a plurality of light-emitting units. "Adjacent" may refer to a situation where two layers are in physical contact with each other, as well as a situation where another layer or element is located between the two layers. In an embodiment, a light-emitting unit adjacent to the second electrode 190 refers to a light-emitting unit that is placed closest to the second electrode 190 among a plurality of light-emitting units. Although the second electrode 190 and the light-emitting unit may be in physical contact, other layers may be located between the second electrode 190 and the light-emitting unit. In an embodiment, for example, an electron transport layer may be located between the second electrode 190 and the light-emitting unit.

[0052] The charge generation layer 155 may be located between two adjacent light-emitting units. One of the two adjacent light-emitting units and the charge generation layer 155 may be in physical contact, and in some embodiments, an additional layer may be located between the other light-emitting unit and the charge generation layer 155. In embodiments, an electron transport layer may be located between the charge generation layer 155 and one of the two adjacent light-emitting units adjacent to the first electrode 110. In one or more embodiments, a hole transport layer may be located between the charge generation layer 155 and one of the two adjacent light-emitting units adjacent to the second electrode 190.

[0053] The charge generation layer 155 can generate charges and / or separate charges into holes and electrons, and can provide electrons to one of two adjacent light-emitting units (thereby acting as a cathode), and can provide holes to the other light-emitting unit (thereby acting as an anode). The charge generation layer 155 is not directly connected to the electrode and separates adjacent light-emitting units. The organic light-emitting device 10 includes m light-emitting units 153 and can include m-1 charge generation layers 155. Each of the m-1 charge generation layers 155 can include an n-type charge generation layer and a p-type charge generation layer. Therefore, the organic light-emitting device 10 including m-1 charge generation layers 155 can include m-1 n-type charge generation layers and m-1 p-type charge generation layers.

[0054] The term "n-type" refers to n-type semiconductor characteristics, for example, the characteristics of injecting or transporting electrons. The term "p-type" refers to p-type semiconductor characteristics, for example, the characteristics of injecting or transporting holes.

[0055] Each of the m-1 charge generation layers 155 may include an n-type charge generation layer 155N and a p-type charge generation layer 155P. In this regard, the n-type charge generation layer 155N and the p-type charge generation layer 155P may directly contact each other to form a pn junction. Due to the pn junction, electrons and holes may be generated simultaneously (e.g., synchronously) between the n-type charge generation layer 155N and the p-type charge generation layer 155P. The generated electrons may be transferred to one of the two adjacent light-emitting units through the n-type charge generation layer 155N. The generated holes may be transferred to the other of the two adjacent light-emitting units through the p-type charge generation layer 155P. Because each of the m-1 charge generation layers 155 includes one n-type charge generation layer 155N and one p-type charge generation layer 155P, the organic light-emitting device 10 including the m-1 charge generation layers 155 may include m-1 n-type charge generation layers 155N and m-1 p-type charge generation layers 155P.

[0056] Among the m−1 charge generation layers 155 , the n-type charge generation layer 155N may be located between the first electrode 110 and the p-type charge generation layer 155P.

[0057] The n-type charge generation layer 155N can supply electrons to the light emitting unit adjacent to the first electrode 110, and the p-type charge generation layer 155P can supply holes to the light emitting unit adjacent to the second electrode 190. Therefore, the light emission efficiency of the organic light emitting device 10 including the plurality of emission layers can be improved, and its driving voltage can be reduced.

[0058] At least one of the m-1 p-type charge generation layers 155P may include a first doping layer 155P′ and a second doping layer 155P″.

[0059] In an embodiment, the first doping layer 155P′ may be located between the first electrode 110 and the second doping layer 155P″.

[0060] In the above embodiment, the first electrode 110 may be an anode as a hole injection electrode, and the second electrode 190 may be a cathode as an electron injection electrode. In some embodiments, the first electrode 110 may be a cathode as an electron injection electrode, and the second electrode 190 may be an anode as a hole injection electrode.

[0061] In an embodiment, the first doping layer 155P' may be located between the first electrode 110 and the second doping layer 155P", and the first doping layer 155P' may directly contact the n-type charge generation layer 155N. In an embodiment, the first doping layer 155P' may be located at an interface between the n-type charge generation layer 155N and the second doping layer 155P".

[0062] According to the above-described embodiment, since the first doping layer 155P′ directly contacts the n-type charge generation layer 155N to form a pn junction, holes may be generated between the n-type charge generation layer 155N and the p-type charge generation layer 155P, and the first doping layer 155P′ may transfer the generated holes to the second doping layer 155P″. The second doping layer 155P″ may transfer the holes transported through the first doping layer 155P′ to the light emitting unit 153 adjacent thereto.

[0063] The first doping layer 155P′ may include a first organic material and a first inorganic material, and the second doping layer 155P″ may include a second organic material and a second inorganic material. The first inorganic material may be different from the second inorganic material.

[0064] In an embodiment, the first inorganic material may include a late transition metal, a metalloid, a compound including two or more late transition metals, a compound including two or more metalloids, a compound including a late transition metal and a metalloid, or any combination thereof,

[0065] The post-transition metal may include at least one selected from aluminum (Al), gallium (Ga), indium (In), thallium (Tl), tin (Sn), lead (Pb), flerovium (Fl), bismuth (Bi), and polonium (Po).

[0066] The metalloid may include at least one selected from boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te), and astatine (At).

[0067] In an embodiment, the compound including two or more post-transition metals may be a compound composed of two or more post-transition metals.

[0068] In an embodiment, the compound including two or more metalloids may be a compound composed of two or more metalloids.

[0069] In an embodiment, the compound including a post-transition metal and a metalloid may be a compound composed of a post-transition metal and a metalloid.

[0070] In an embodiment, the first inorganic material may include Bi2Te3, Bi7Te3, Bi2Te, Bi4Te3, BiTe, Bi6Te7, Bi4Te5, Bi x Te y (0 < x < 100, 0 < y < 100, 0 < x + y ≤ 100), Sb2Te3, In2Te3, Ga2Te2, Al2Te3, Tl2Te3, As2Te3, GeSbTe, SnTe, PbTe, SiTe, GeTe, FlTe, SiGe, AlInSb, AlGaSb, AlAsSb, GaAs, InSb, AlSb, AlAs, Al a In a Sb(0 < a < 1), Al b In (1-b) Sb(0 < b < 1), GaSb, AlInGaAs, or any combination thereof.

[0071] In an embodiment, the first inorganic material may have an absolute value of work function of 3.0 eV or greater. In an embodiment, the absolute value of the work function of the first inorganic material may be 3.0 eV or greater, for example, 3.5 eV or greater.

[0072] In an embodiment, the second inorganic material may include a halide of a metal (e.g., metal halide). In an embodiment, the second inorganic material may include a halide of an alkali metal, a halide of an alkaline earth metal, a halide of a transition metal, a halide of a post-transition metal, a halide of a lanthanide metal, or any combination thereof.

[0073] In an embodiment, the second inorganic material may include an iodide of an alkali metal, an iodide of an alkaline earth metal, an iodide of a transition metal, an iodide of a post-transition metal, an iodide of a lanthanide metal, or any combination thereof.

[0074] In an embodiment, the second inorganic material may include lithium iodide (Li), sodium iodide (Na), potassium iodide (K), rubidium iodide (Rb), cesium iodide (Cs), beryllium iodide (Be), magnesium iodide (Mg), calcium iodide (Ca), strontium iodide (Sr), barium iodide (Ba), ytterbium iodide (Yb), samarium iodide (Sm), copper iodide (Cu), thallium iodide (Tl), silver iodide (Ag), cadmium iodide (Cd), mercury iodide (Hg), tin iodide (Sn), lead iodide (Pb), bismuth iodide (Bi), zinc iodide (Zn), manganese iodide (Mn), iron iodide (Fe), cobalt iodide (Co), nickel iodide (Ni), aluminum iodide (Al), indium iodide (In), gallium iodide (Ga), thorium iodide (Th), uranium iodide (U), or any combination thereof, but is not limited thereto.

[0075] In one embodiment, the second inorganic material may include LiI, NaI, KI, RbI, CsI, BeI2, MgI2, CaI2, SrI2, BaI2, YbI, YbI2, YbI3, SmI3, CuI, TlI, AgI, CdI2, HgI2, SnI2, PbI2, BiI3, ZnI2, MnI2, FeI2, CoI2, NiI2, AlI3, InI3, GaI3, ThI4, UI3, or any combination thereof, but the embodiments of the present disclosure are not limited thereto.

[0076] The first organic material included in the first doping layer 155P′ and the second organic material included in the second doping layer 155P″ may be the same as or different from each other.

[0077] In an embodiment, the first organic material may be the same as the second organic material, but embodiments of the present disclosure are not limited thereto.

[0078] In an embodiment, the first organic material and the second organic material may each include a hole transport material. The hole transport material is not particularly limited as long as it has hole transport properties. In an embodiment, the hole transport material may include a carbazolyl group, a fused carbazolyl group, an indole group, a fused indole group, a furyl group, a dibenzofuranyl group, an acridinyl group, a phenoxazinyl group, a phenothiazinyl group, an amine group, or any combination thereof.

[0079] In an embodiment, the first organic material and the second organic material may each independently be selected from compounds represented by Formula 201, Formula 202, and Formulas 301-2 to 301-4:

[0080]

[0081]

[0082] Among them, in Formula 201, Formula 202 and Formula 301-2 to Formula 301-4,

[0083] A 301 To A 304 Each of the rings may be independently selected from a benzene ring, a naphthalene ring, a phenanthrene ring, a fluoranthene ring, a triphenylene ring, a pyrene ring, a 1,2-triphenylene ring, a pyridine ring, a pyrimidine ring, an indene ring, a fluorene ring, a spiro-bifluorene ring, a benzofluorene ring, a dibenzofluorene ring, an indole ring, a carbazole ring, a benzocarbazole ring, a dibenzocarbazole ring, a furan ring, a benzofuran ring, a dibenzofuran ring, a naphthofuran ring, a benzonaphthofuran ring, a dinaphthofuran ring, a thiophene ring, a benzothiophene ring, a dibenzothiophene ring, a naphthothiophene ring, a benzonaphthothiophene ring and a dinaphthothiophene ring,

[0084] X 301 Can be O, S or N-[(L 304 ) xb4 -R 304 ],

[0085] X 302 Can be a single bond, C(R 305 )(R 306 ), O, S or N-[(L 305 ) xb5 -R 305 ],

[0086] L 201 To L 204 and L 301 To L 305 Can be independently selected from substituted or unsubstituted C3-C 10 Cycloalkylene, substituted or unsubstituted C1-C 10 Heterocycloalkylene, substituted or unsubstituted C3-C 10 Cycloalkenylene, substituted or unsubstituted C1-C 10 Heterocycloalkenylene, substituted or unsubstituted C6-C 60 Arylene, substituted or unsubstituted C1-C 60 heteroarylene, a substituted or unsubstituted divalent non-aromatic fused polycyclic group and a substituted or unsubstituted divalent non-aromatic fused heteropolycyclic group,

[0087] L 205 Can be selected from *-O-*', *-S-*', *-N(Q 201 )-*', substituted or unsubstituted C1-C 20 Alkylene, substituted or unsubstituted C2-C 20 Alkenylene, substituted or unsubstituted C3-C10 Cycloalkylene, substituted or unsubstituted C1-C 10 Heterocycloalkylene, substituted or unsubstituted C3-C 10 Cycloalkenylene, substituted or unsubstituted C1-C 10 Heterocycloalkenylene, substituted or unsubstituted C6-C 60 Arylene, substituted or unsubstituted C1-C 60 heteroarylene, a substituted or unsubstituted divalent non-aromatic fused polycyclic group and a substituted or unsubstituted divalent non-aromatic fused heteropolycyclic group,

[0088] xa1 to xa4 may each independently be an integer selected from 0 to 3,

[0089] xa5 may be an integer selected from 1 to 10, and

[0090] xb1 to xb5 may each be an integer selected from 0 to 5,

[0091] xb22 and xb23 can each independently be 0, 1 or 2,

[0092] R 201 to R 204 and Q 201 Can be independently selected from substituted or unsubstituted C3-C 10 Cycloalkyl, substituted or unsubstituted C1-C 10 Heterocycloalkyl, substituted or unsubstituted C3-C 10 Cycloalkenyl, substituted or unsubstituted C1-C 10 Heterocycloalkenyl, substituted or unsubstituted C6-C 60 Aryl, substituted or unsubstituted C6-C 60 Aryloxy, substituted or unsubstituted C6-C 60 Arylthio, substituted or unsubstituted C1-C 60 heteroaryl, a substituted or unsubstituted monovalent non-aromatic fused polycyclic group and a substituted or unsubstituted monovalent non-aromatic fused heteropolycyclic group,

[0093] R 301 to R 306 can be independently selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, nitro, amidino, hydrazine, hydrazone, substituted or unsubstituted C1-C 60 Alkyl, substituted or unsubstituted C2-C 60 Alkenyl, substituted or unsubstituted C2-C 60 Alkynyl, substituted or unsubstituted C1-C 60 Alkoxy, substituted or unsubstituted C3-C 10 Cycloalkyl, substituted or unsubstituted C1-C 10Heterocycloalkyl, substituted or unsubstituted C3-C 10 Cycloalkenyl, substituted or unsubstituted C1-C 10 Heterocycloalkenyl, substituted or unsubstituted C6-C 60 Aryl, substituted or unsubstituted C6-C 60 Aryloxy, substituted or unsubstituted C6-C 60 Arylthio, substituted or unsubstituted C1-C 60 heteroaryl, substituted or unsubstituted monovalent non-aromatic fused polycyclic group, substituted or unsubstituted monovalent non-aromatic fused heteropolycyclic group, -Si(Q 301 )(Q 302 )(Q 303 )、-N(Q 301 )(Q 302 )、-B(Q 301 )(Q 302 ),-C(=O)(Q 301 )、-S(=O)2(Q 301 ) and -P(=O)(Q 301 )(Q 302 ),

[0094] R 311 to R 314 can be independently selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, nitro, amidino, hydrazine, hydrazone, C1-C 20 Alkyl, C1-C 20 Alkoxy, phenyl, biphenyl, terphenyl, naphthyl, -Si(Q 31 )(Q 32 )(Q 33 )、-N(Q 31 )(Q 32 )、-B(Q 31 )(Q 32 ),-C(=O)(Q 31 )、-S(=O)2(Q 31 ) and -P(=O)(Q 31 )(Q 32 ),and

[0095] Substituted C1-C 20 Alkylene, substituted C2-C 20 Alkenylene, substituted C3-C 10 Cycloalkylene, substituted C1-C 10 Heterocycloalkylene, substituted C3-C 10 Cycloalkenylene, substituted C1-C 10 Heterocycloalkenylene, substituted C6-C 60 Arylene, substituted C1-C 60Heteroarylene, substituted divalent non-aromatic fused polycyclic group, substituted divalent non-aromatic fused heteropolycyclic group, substituted C1-C 60 Alkyl, substituted C2-C 60 Alkenyl, substituted C2-C 60 Alkynyl, substituted C1-C 60 Alkoxy, substituted C3-C 10 Cycloalkyl, substituted C1-C 10 Heterocycloalkyl, substituted C3-C 10 Cycloalkenyl, substituted C1-C 10 Heterocycloalkenyl, substituted C6-C 60 Aryl, substituted C6-C 60 Aryloxy, substituted C6-C 60 Arylthio, substituted C1-C 60 At least one substituent of the heteroaryl group, the substituted monovalent non-aromatic fused polycyclic group, and the substituted monovalent non-aromatic fused heteropolycyclic group is selected from the group consisting of:

[0096] Deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl and C1-C 60 alkoxy;

[0097] Each of the following C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl and C1-C 60 Alkoxy: deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C3-C 10 Cycloalkyl, C1-C 10 Heterocycloalkyl, C3-C 10 Cycloalkenyl, C1-C 10 Heterocycloalkenyl, C6-C 60 Aryl, C6-C 60 Aryloxy, C6-C 60 Arylthio, C1-C 60 Heteroaryl, monovalent non-aromatic fused polycyclic group, monovalent non-aromatic fused heteropolycyclic group, -Si(Q 11 )(Q 12 )(Q 13 )、-N(Q 11 )(Q 12 )、-B(Q 11 )(Q 12 ),-C(=O)(Q 11)、-S(=O)2(Q 11 ) and -P(=O)(Q 11 )(Q 12 );

[0098] C3-C 10 Cycloalkyl, C1-C 10 Heterocycloalkyl, C3-C 10 Cycloalkenyl, C1-C 10 Heterocycloalkenyl, C6-C 60 Aryl, C6-C 60 Aryloxy, C6-C 60 Arylthio, C1-C 60 heteroaryl groups, monovalent non-aromatic fused polycyclic groups, and monovalent non-aromatic fused heteropolycyclic groups;

[0099] Each of the C3-C 10 Cycloalkyl, C1-C 10 Heterocycloalkyl, C3-C 10 Cycloalkenyl, C1-C 10 Heterocycloalkenyl, C6-C 60 Aryl, C6-C 60 Aryloxy, C6-C 60 Arylthio, C1-C 60 Heteroaryl, monovalent non-aromatic fused polycyclic groups and monovalent non-aromatic fused heteropolycyclic groups: deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl, C1-C 60 Alkoxy, C3-C 10 Cycloalkyl, C1-C 10 Heterocycloalkyl, C3-C 10 Cycloalkenyl, C1-C 10 Heterocycloalkenyl, C6-C 60 Aryl, C6-C 60 Aryloxy, C6-C 60 Arylthio, C1-C 60 Heteroaryl, monovalent non-aromatic fused polycyclic group, monovalent non-aromatic fused heteropolycyclic group, -Si(Q 21 )(Q 22 )(Q 23 )、-N(Q 21 )(Q 22 )、-B(Q 21 )(Q 22 ),-C(=O)(Q 21 )、-S(=O)2(Q 21) and -P(=O)(Q 21 )(Q 22 );as well as

[0100] -Si(Q 31 )(Q 32 )(Q 33 )、-N(Q 31 )(Q 32 )、-B(Q 31 )(Q 32 ),-C(=O)(Q 31 )、-S(=O)2(Q 31 ) and -P(=O)(Q 31 )(Q 32 ),and

[0101] where Q 11 To Q 13 , Q 21 To Q 23 , Q 31 To Q 33 and Q 301 To Q 303 Can be independently selected from C1-C 10 Alkyl, C1-C 10 Alkoxy, phenyl, biphenyl, terphenyl and naphthyl.

[0102] In an embodiment, the first organic material and the second organic material may each be independently selected from compounds HT1 to HT73:

[0103]

[0104]

[0105]

[0106]

[0107]

[0108]

[0109]

[0110] The amount of the first inorganic material included in the first doping layer 155P' may be from about 0.01 parts by weight to about 49.9 parts by weight based on 100 parts by weight of the first organic material. In an embodiment, the amount of the first inorganic material included in the first doping layer 155P' may be from about 0.1 parts by weight to about 49.9 parts by weight based on 100 parts by weight of the first organic material. In an embodiment, the amount of the first inorganic material included in the first doping layer 155P' may be from about 0.1 parts by weight to about 20 parts by weight based on 100 parts by weight of the first organic material.

[0111] The amount of the second inorganic material included in the second doping layer 155P" may be from about 0.01 parts by weight to about 49.9 parts by weight based on 100 parts by weight of the second organic material. In an embodiment, the amount of the second inorganic material included in the second doping layer 155P" may be from about 0.1 parts by weight to about 49.9 parts by weight based on 100 parts by weight of the second organic material. In an embodiment, the amount of the second inorganic material included in the second doping layer 155P" may be from about 0.1 parts by weight to about 20 parts by weight based on 100 parts by weight of the second organic material.

[0112] In an embodiment, the thickness of the first doping layer 155P′ and the thickness of the second doping layer 155P″ may each independently be about 100 Å. to about In an embodiment, the thickness of the first doping layer 155P′ and the thickness of the second doping layer 155P″ may each independently be about 100 Å. to about When the thickness of the first doping layer 155P′ and the thickness of the second doping layer 155P″ meet the above ranges, a high-quality organic light-emitting device can be realized without a significant increase in driving voltage.

[0113] The organic light-emitting device 10 includes a p-type charge generation layer 155P with a multi-layer structure, including a first doping layer 155P′ and a second doping layer 155P″, wherein charges are generated in the first doping layer 155P′ and transferred to the adjacent second doping layer 155P″, and the second doping layer 155P″ can transfer the charges generated in the first doping layer 155P′ to the light-emitting unit. Therefore, compared with an organic light-emitting device using a p-type charge generation layer having a single-layer structure, the organic light-emitting device 10 can efficiently generate and transfer charges.

[0114] Based on the principle that the conduction band of the n-type charge generation layer 155N is band-aligned with the lowest unoccupied molecular orbital (LUMO) of the first inorganic material in the first doping layer 155P′, when a pn junction is formed with the n-type charge generation layer 155N, the first doping layer 155P′ can effectively generate holes.

[0115] The first doping layer 155P' may be provided as a mixed layer including a first organic material and a first inorganic material, wherein the first inorganic material is included as a dopant. In the organic light-emitting device 10 including the first doping layer 155P', wherein the first inorganic material is doped in a matrix of the first organic material, current does not leak in a direction substantially horizontal to the surface of the first doping layer 155P', and may flow in a direction substantially perpendicular to the surface of the first doping layer 155P', resulting in efficient delivery of charges to the light-emitting unit 153. In some embodiments, the formation of islands solely including the first inorganic material (e.g., consisting of the first inorganic material) may be prevented or reduced, so that the charges generated in the first doping layer 155P' may be effectively transferred to the second doping layer 155P", and the brightness imbalance of the light-emitting surface of the organic light-emitting device 10 may be prevented or reduced. As such, the luminous efficiency of the organic light-emitting device 10 may be improved.

[0116] The second organic material and the second inorganic material of the second doping layer 155P" may form a charge transfer complex (CT complex) to quickly transfer the charges transferred from the first doping layer 155P' to an adjacent light-emitting unit. The second doping layer 155P" may be provided as a mixed layer including a second organic material and a second inorganic material, wherein the second inorganic material may be included as a dopant. As such, in the organic light-emitting device 10 including the second doping layer 155P", wherein the second inorganic material is doped in a matrix of the second organic material, current may flow substantially vertically to the surface of the second doping layer 155P" without leaking in a direction substantially horizontal thereto. In addition, because a charge transfer complex can be formed in the second doping layer 155P", the charge can be efficiently transferred to the light emitting unit 153. In some embodiments, the formation of an island including the second inorganic material alone (e.g., composed of the second inorganic material) can be prevented or reduced, so that the charge transferred from the first doping layer 155P' can be effectively transferred to the light emitting unit 153, and the brightness imbalance of the light emitting surface of the organic light emitting device 10 can be prevented or reduced. As a result, the light emitting efficiency of the organic light emitting device 10 can be improved.

[0117] In an embodiment, (each) m-1 n-type charge generation layers 155N may include a material that may be included in an electron transport region described below.

[0118] In an embodiment, the (each) m-1 n-type charge generation layers 155N may include a metal-free compound containing at least one π-electron-deficient nitrogen-containing ring, a compound represented by Formula 601, a metal-containing material, or any combination thereof:

[0119] Formula 601

[0120] [Ar 601 ] xe11 -[(L601 ) xe1 -R 601 ] xe21 ,

[0121] Wherein, in formula 601,

[0122] Ar 601 Can be substituted or unsubstituted C5-C 60 Carbocyclic group or substituted or unsubstituted C1-C 60 Heterocyclic group, xe11 can be 1, 2 or 3,

[0123] L 601 Can be selected from substituted or unsubstituted C3-C 10 Cycloalkylene, substituted or unsubstituted C1-C 10 Heterocycloalkylene, substituted or unsubstituted C3-C 10 Cycloalkenylene, substituted or unsubstituted C1-C 10 Heterocycloalkenylene, substituted or unsubstituted C6-C 60 Arylene, substituted or unsubstituted C1-C 60 heteroarylene, a substituted or unsubstituted divalent non-aromatic fused polycyclic group and a substituted or unsubstituted divalent non-aromatic fused heteropolycyclic group,

[0124] xe1 may be an integer selected from 0 to 5,

[0125] R 601 Can be selected from substituted or unsubstituted C3-C 10 Cycloalkyl, substituted or unsubstituted C1-C 10 Heterocycloalkyl, substituted or unsubstituted C3-C 10 Cycloalkenyl, substituted or unsubstituted C1-C 10 Heterocycloalkenyl, substituted or unsubstituted C6-C 60 Aryl, substituted or unsubstituted C6-C 60 Aryloxy, substituted or unsubstituted C6-C 60 Arylthio, substituted or unsubstituted C1-C 60 heteroaryl, substituted or unsubstituted monovalent non-aromatic fused polycyclic group, substituted or unsubstituted monovalent non-aromatic fused heteropolycyclic group, -Si(Q 601 )(Q 602 )(Q 603 ),-C(=O)(Q 601 )、-S(=O)2(Q 601 ) and -P(=O)(Q 601 )(Q 602 ),

[0126] Q 601 To Q 603Can be independently C1-C 10 Alkyl, C1-C 10 alkoxy, phenyl, biphenyl, terphenyl or naphthyl, and

[0127] xe21 may be an integer selected from 1 to 5.

[0128] The metal-containing material may be a metal, a metal oxide, a metal halide, or any combination thereof.

[0129] In an embodiment, when a metal is included as the metal-containing material, the metal may be an alkali metal, an alkaline earth metal, a rare earth metal, a transition metal, a post-transition metal, or any combination thereof, but the embodiments of the present disclosure are not limited thereto.

[0130] In an embodiment, when a metal oxide is included as the metal-containing material, the metal oxide may be an alkali metal oxide, but embodiments of the present disclosure are not limited thereto.

[0131] In one or more embodiments, when a metal halide is included as the metal-containing material, the metal halide may be a halide of an alkali metal, but embodiments of the present disclosure are not limited thereto.

[0132] In an embodiment, the metal-containing material may be Yb, Ag, Al, Sm, Mg, Li, RbI, KI, Ti, Rb, Na, K, Ba, Mn, YbSi2, or any combination thereof, but embodiments of the present disclosure are not limited thereto. In an embodiment, the metal-containing material may be Yb, Ag, Al, Li, or any combination thereof, but embodiments of the present disclosure are not limited thereto.

[0133] The thickness of the n-type charge generation layer 155N may be about to about In an embodiment, the thickness of the n-type charge generation layer 155N may be about to about When the thickness of the n-type charge generation layer 155N satisfies the above range, a high-quality organic light-emitting device can be realized without significantly increasing the driving voltage.

[0134] In an embodiment, at least one emission layer in the m light emitting units 153 may include a condensed ring compound represented by Formula 3:

[0135]

[0136] Among them, in formula 3,

[0137] L 31 Can be selected from unsubstituted or substituted C5-C 60 Carbocyclic groups and unsubstituted or substituted C1-C 60 Heterocyclic groups,

[0138] a31 may be an integer selected from 0 to 5,

[0139] R 31 and R 32 can be independently selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, substituted or unsubstituted C1-C 60 Alkyl, substituted or unsubstituted C2-C 60 Alkenyl, substituted or unsubstituted C2-C 60 Alkynyl, substituted or unsubstituted C1-C 60 Alkoxy, substituted or unsubstituted C3-C 10 Cycloalkyl, substituted or unsubstituted C1-C 10 Heterocycloalkyl, substituted or unsubstituted C3-C 10 Cycloalkenyl, substituted or unsubstituted C1-C 10 Heterocycloalkenyl, substituted or unsubstituted C6-C 60 Aryl, substituted or unsubstituted C6-C 60 Aryloxy, substituted or unsubstituted C6-C 60 Arylthio, substituted or unsubstituted C1-C 60 heteroaryl, substituted or unsubstituted monovalent non-aromatic fused polycyclic group, substituted or unsubstituted monovalent non-aromatic fused heteropolycyclic group, -Si(Q1)(Q2)(Q3), -N(Q1)(Q2), -B(Q1)(Q2), -C(═O)(Q1), -S(═O)2(Q1) and -P(═O)(Q1)(Q2), wherein Q1 to Q3 can be each independently selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl, C1-C 60 Alkoxy, C3-C 10 Cycloalkyl, C1-C 10 Heterocycloalkyl, C3-C 10 Cycloalkenyl, C1-C 10 Heterocycloalkenyl, C6-C 60 Aryl, C1-C 60 heteroaryl, monovalent non-aromatic fused polycyclic group, monovalent non-aromatic fused heteropolycyclic group, biphenyl group and terphenyl group,

[0140] b31 and b32 may each independently be an integer selected from 1 to 5,

[0141] n31 may be an integer selected from 1 to 3, and

[0142] Substituted C5-C 60 Carbocyclic groups, substituted C1-C 60 Heterocyclic groups, substituted C1-C 60 Alkyl, substituted C2-C 60 Alkenyl, substituted C2-C 60 Alkynyl, substituted C1-C 60 Alkoxy, substituted C3-C 10 Cycloalkyl, substituted C1-C 10 Heterocycloalkyl, substituted C3-C 10 Cycloalkenyl, substituted C1-C 10 Heterocycloalkenyl, substituted C6-C 60 Aryl, substituted C6-C 60 Aryloxy, substituted C6-C 60 Arylthio, substituted C1-C 60 At least one substituent of the heteroaryl group, the substituted monovalent non-aromatic fused polycyclic group, or the substituted monovalent non-aromatic fused heteropolycyclic group may be selected from:

[0143] Deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl and C1-C 60 Alkoxy,

[0144] Each of the following C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl and C1-C 60 Alkoxy: deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C3-C 10 Cycloalkyl, C1-C 10 Heterocycloalkyl, C3-C 10 Cycloalkenyl, C1-C 10 Heterocycloalkenyl, C6-C 60 Aryl, C6-C 60 Aryloxy, C6-C 60 Arylthio, C1-C 60 Heteroaryl, monovalent non-aromatic fused polycyclic group, monovalent non-aromatic fused heteropolycyclic group, -Si(Q 11 )(Q 12 )(Q 13 )、-N(Q 11 )(Q 12 )、-B(Q 11 )(Q 12 ),-C(=O)(Q11 )、-S(=O)2(Q 11 ) and -P(=O)(Q 11 )(Q 12 );

[0145] C3-C 10 Cycloalkyl, C1-C 10 Heterocycloalkyl, C3-C 10 Cycloalkenyl, C1-C 10 Heterocycloalkenyl, C6-C 60 Aryl, C6-C 60 Aryloxy, C6-C 60 Arylthio, C1-C 60 heteroaryl groups, monovalent non-aromatic fused polycyclic groups, and monovalent non-aromatic fused heteropolycyclic groups;

[0146] Each of the C3-C 10 Cycloalkyl, C1-C 10 Heterocycloalkyl, C3-C 10 Cycloalkenyl, C1-C 10 Heterocycloalkenyl, C6-C 60 Aryl, C6-C 60 Aryloxy, C6-C 60 Arylthio, C1-C 60 Heteroaryl, monovalent non-aromatic fused polycyclic groups and monovalent non-aromatic fused heteropolycyclic groups: deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl, C1-C 60 Alkoxy, C3-C 10 Cycloalkyl, C1-C 10 Heterocycloalkyl, C3-C 10 Cycloalkenyl, C1-C 10 Heterocycloalkenyl, C6-C 60 Aryl, C6-C 60 Aryloxy, C6-C 60 Arylthio, C1-C 60 Heteroaryl, monovalent non-aromatic fused polycyclic group, monovalent non-aromatic fused heteropolycyclic group, -Si(Q 21 )(Q 22 )(Q 23 )、-N(Q 21 )(Q 22 )、-B(Q 21 )(Q 22 ),-C(=O)(Q 21 )、-S(=O)2(Q21 ) and -P(=O)(Q 21 )(Q 22 ),as well as

[0147] -Si(Q 31 )(Q 32 )(Q 33 )、-N(Q 31 )(Q 32 )、-B(Q 31 )(Q 32 ),-C(=O)(Q 31 )、-S(=O)2(Q 31 ) and -P(=O)(Q 31 )(Q 32 ),

[0148] where Q 11 To Q 13 , Q 21 To Q 23 and Q 31 To Q 33 can be independently selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl, C1-C 60 Alkoxy, C3-C 10 Cycloalkyl, C1-C 10 Heterocycloalkyl, C3-C 10 Cycloalkenyl, C1-C 10 Heterocycloalkenyl, C6-C 60 Aryl, C1-C 60 heteroaryl group, a monovalent non-aromatic fused polycyclic group, a monovalent non-aromatic fused heteropolycyclic group, a biphenyl group, and a terphenyl group.

[0149] In an embodiment, at least one emission layer in the m light emitting units 153 may include a condensed ring compound represented by Formula 3-1:

[0150]

[0151] L in Formula 3-1 31 、a31、R 31 、R 32 , b31 and b32 may each independently be the same as described above.

[0152] L 32 and R 33 Can be combined with L independently 31 and R 31 Same as described,

[0153] a32 can be an integer from 0 to 5, and

[0154] b33 can be an integer from 0 to 5.

[0155] In an embodiment, R in Formula 3 31 and R 32 At least one of and R in formula 3-1 31 to R 33 At least one of may be a group represented by one selected from Formula 3A and Formula 3B:

[0156]

[0157] Wherein, in Formula 3A and Formula 3B,

[0158] CY 41 and CY 42 Can be independently selected from C5-C 30 Carbocyclic groups and C1-C 30 Heterocyclic groups,

[0159] X 41 Can be selected from O, S and N (R 43 ),

[0160] R 41 to R 43 can be independently selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, substituted or unsubstituted C1-C 60 Alkyl, substituted or unsubstituted C2-C 60 Alkenyl, substituted or unsubstituted C2-C 60 Alkynyl, substituted or unsubstituted C1-C 60 Alkoxy, substituted or unsubstituted C3-C 10 Cycloalkyl, substituted or unsubstituted C1-C 10 Heterocycloalkyl, substituted or unsubstituted C3-C 10 Cycloalkenyl, substituted or unsubstituted C1-C 10 Heterocycloalkenyl, substituted or unsubstituted C6-C 60 Aryl, substituted or unsubstituted C6-C 60 Aryloxy, substituted or unsubstituted C6-C 60 Arylthio, substituted or unsubstituted C1-C 60heteroaryl, substituted or unsubstituted monovalent non-aromatic fused polycyclic group, substituted or unsubstituted monovalent non-aromatic fused heteropolycyclic group, -Si(Q1)(Q2)(Q3), -N(Q1)(Q2), -B(Q1)(Q2), -C(═O)(Q1), -S(═O)2(Q1) and -P(═O)(Q1)(Q2), wherein Q1 to Q3 can be each independently selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl, C1-C 60 Alkoxy, C3-C 10 Cycloalkyl, C1-C 10 Heterocycloalkyl, C3-C 10 Cycloalkenyl, C1-C 10 Heterocycloalkenyl, C6-C 60 Aryl, C1-C 60 heteroaryl, monovalent non-aromatic fused polycyclic group, monovalent non-aromatic fused heteropolycyclic group, biphenyl group and terphenyl group,

[0161] b41 and b42 may each independently be an integer selected from 1 to 10, and

[0162] *Indicates the binding site with the adjacent atoms.

[0163] In an embodiment, R in Formula 3 31 and R in formula 3-1 31 and R 33 At least one of may be a group represented by one selected from Formula 3A and Formula 3B.

[0164] In an embodiment, R in Formula 3 31 and R 32 At least one of and R in formula 3-1 31 to R 33 At least one of may be a group represented by one selected from Formula 3A-1 and Formula 3B-1 to Formula 3B-12:

[0165]

[0166]

[0167] Wherein, in Formula 3A-1 and Formula 3B-1 to Formula 3B-12,

[0168] R 41 to R 43 may each independently be the same as described in conjunction with Formula 3A and Formula 3B,

[0169] b43 may be an integer selected from 1 to 3,

[0170] b44 may be an integer selected from 1 to 4, and

[0171] *Indicates the binding site with the adjacent atoms.

[0172] In an embodiment, R in Formula 3 31 and R in formula 3-1 31 and R 33 At least one of may each independently be a group represented by one selected from Formula 3A-1 and Formula 3B-1 to Formula 3B-12.

[0173] In an embodiment, the compound represented by Formula 3 and the compound represented by Formula 3-1 may each be used as a host in the emission layer.

[0174] In an embodiment, at least one emission layer in the m light emitting units 153 may include one of compounds H1 to H24, one of compounds BH1 to BH13, 9,10-di(2-naphthyl)anthracene (ADN), 2-methyl-9,10-bis(naphthalene-2-yl)anthracene (MADN), or any combination thereof, but embodiments of the present disclosure are not limited thereto.

[0175]

[0176]

[0177]

[0178] In an embodiment, at least one emission layer in the m light emitting units 153 may include a condensed ring compound represented by Formula 4:

[0179]

[0180] Among them, in formula 4,

[0181] X 51 Can be selected from C(R 54 )(R 55 )、N(R 54 ), O and S,

[0182] X 52 Can be selected from C(R 56 )(R 57 )、N(R 56 ), O and S,

[0183] CY 51 To CY 53 Can be independently selected from C5-C 30 Carbocyclic groups and C1-C 30Heterocyclic groups,

[0184] R 51 to R 53 and R 54 to R 57 can be independently selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, substituted or unsubstituted C1-C 60 Alkyl, substituted or unsubstituted C2-C 60 Alkenyl, substituted or unsubstituted C2-C 60 Alkynyl, substituted or unsubstituted C1-C 60 Alkoxy, substituted or unsubstituted C3-C 10 Cycloalkyl, substituted or unsubstituted C1-C 10 Heterocycloalkyl, substituted or unsubstituted C3-C 10 Cycloalkenyl, substituted or unsubstituted C1-C 10 Heterocycloalkenyl, substituted or unsubstituted C6-C 60 Aryl, substituted or unsubstituted C6-C 60 Aryloxy, substituted or unsubstituted C6-C 60 Arylthio, substituted or unsubstituted C1-C 60 heteroaryl, substituted or unsubstituted monovalent non-aromatic fused polycyclic group, substituted or unsubstituted monovalent non-aromatic fused heteropolycyclic group, -Si(Q1)(Q2)(Q3), -N(Q1)(Q2), -B(Q1)(Q2), -C(═O)(Q1), -S(═O)2(Q1) and -P(═O)(Q1)(Q2), wherein Q1 to Q3 can be each independently selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl, C1-C 60 Alkoxy, C3-C 10 Cycloalkyl, C1-C 10 Heterocycloalkyl, C3-C 10 Cycloalkenyl, C1-C 10 Heterocycloalkenyl, C6-C 60 Aryl, C1-C 60 heteroaryl, monovalent non-aromatic fused polycyclic group, monovalent non-aromatic fused heteropolycyclic group, biphenyl group and terphenyl group,

[0185] b51 to b53 may each independently be an integer selected from 1 to 10,

[0186] When b51, b52 and / or b53 are at least 2, two adjacent R 51 Group, two adjacent R52 group and / or two adjacent R 53 The groups may be optionally linked to form C5-C 30 Carbocyclic group or C1-C 30 Heterocyclic groups,

[0187] Substituted C1-C 60 Alkyl, substituted C2-C 60 Alkenyl, substituted C2-C 60 Alkynyl, substituted C1-C 60 Alkoxy, substituted C3-C 10 Cycloalkyl, substituted C1-C 10 Heterocycloalkyl, substituted C3-C 10 Cycloalkenyl, substituted C1-C 10 Heterocycloalkenyl, substituted C6-C 60 Aryl, substituted C6-C 60 Aryloxy, substituted C6-C 60 Arylthio, substituted C1-C 60 At least one substituent of the heteroaryl group, the substituted monovalent non-aromatic fused polycyclic group, or the substituted monovalent non-aromatic fused heteropolycyclic group may be selected from:

[0188] Deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl and C1-C 60 Alkoxy,

[0189] Each of the following C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl and C1-C 60 Alkoxy: deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C3-C 10 Cycloalkyl, C1-C 10 Heterocycloalkyl, C3-C 10 Cycloalkenyl, C1-C 10 Heterocycloalkenyl, C6-C 60 Aryl, C6-C 60 Aryloxy, C6-C 60 Arylthio, C1-C 60 Heteroaryl, monovalent non-aromatic fused polycyclic group, monovalent non-aromatic fused heteropolycyclic group, -Si(Q 11 )(Q 12 )(Q 13 )、-N(Q11 )(Q 12 )、-B(Q 11 )(Q 12 ),-C(=O)(Q 11 )、-S(=O)2(Q 11 ) and -P(=O)(Q 11 )(Q 12 );

[0190] C3-C 10 Cycloalkyl, C1-C 10 Heterocycloalkyl, C3-C 10 Cycloalkenyl, C1-C 10 Heterocycloalkenyl, C6-C 60 Aryl, C6-C 60 Aryloxy, C6-C 60 Arylthio, C1-C 60 heteroaryl groups, monovalent non-aromatic fused polycyclic groups, and monovalent non-aromatic fused heteropolycyclic groups;

[0191] Each of the C3-C 10 Cycloalkyl, C1-C 10 Heterocycloalkyl, C3-C 10 Cycloalkenyl, C1-C 10 Heterocycloalkenyl, C6-C 60 Aryl, C6-C 60 Aryloxy, C6-C 60 Arylthio, C1-C 60 Heteroaryl, monovalent non-aromatic fused polycyclic groups and monovalent non-aromatic fused heteropolycyclic groups: deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl, C1-C 60 Alkoxy, C3-C 10 Cycloalkyl, C1-C 10 Heterocycloalkyl, C3-C 10 Cycloalkenyl, C1-C 10 Heterocycloalkenyl, C6-C 60 Aryl, C6-C 60 Aryloxy, C6-C 60 Arylthio, C1-C 60 Heteroaryl, monovalent non-aromatic fused polycyclic group, monovalent non-aromatic fused heteropolycyclic group, -Si(Q 21 )(Q 22 )(Q 23 )、-N(Q 21 )(Q 22)、-B(Q 21 )(Q 22 ),-C(=O)(Q 21 )、-S(=O)2(Q 21 ) and -P(=O)(Q 21 )(Q 22 ),as well as

[0192] -Si(Q 31 )(Q 32 )(Q 33 )、-N(Q 31 )(Q 32 )、-B(Q 31 )(Q 32 ),-C(=O)(Q 31 )、-S(=O)2(Q 31 ) and -P(=O)(Q 31 )(Q 32 ),

[0193] where Q 11 To Q 13 , Q 21 To Q 23 and Q 31 To Q 33 can be independently selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl, C1-C 60 Alkoxy, C3-C 10 Cycloalkyl, C1-C 10 Heterocycloalkyl, C3-C 10 Cycloalkenyl, C1-C 10 Heterocycloalkenyl, C6-C 60 Aryl, C1-C 60 heteroaryl group, a monovalent non-aromatic fused polycyclic group, a monovalent non-aromatic fused heteropolycyclic group, a biphenyl group, and a terphenyl group.

[0194] In an embodiment, at least one emission layer in the m light emitting units 153 may include a condensed ring compound represented by Formula 4-1:

[0195]

[0196] In formula 4-1,

[0197] X 51 and X 52 can be independently the same as above,

[0198] R511 to R 514 、R 521 to R 524 and R 531 to R 533 Can be combined with R 51 to R 53 Same as described, and

[0199] Two adjacent R 511 to R 514 Group, two adjacent R 521 to R 524 Group and / or two adjacent R 531 to R 533 The groups may optionally be linked to form C5-C 30 Carbocyclic group or C1-C 30 Heterocyclic group.

[0200] In an embodiment, the condensed cyclic compound represented by Formula 4 and the condensed cyclic compound represented by Formula 4-1 may be used as a dopant in the emission layer.

[0201] In an embodiment, at least one emission layer in the m light emitting units 153 may include at least one selected from compounds BD1 to BD18, but embodiments of the present disclosure are not limited thereto.

[0202]

[0203] The fused ring compound represented by Formula 4 includes a polycyclic fused structure containing a boron atom, and thus the interval between its highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) can be increased due to the multiple resonance effect. Furthermore, due to the polycyclic fused structure, the fused ring compound can emit light with a narrow full width at half maximum (FWHM). Therefore, the color purity of the light emitted from the organic light-emitting device 10 can be improved, and the optical resonance utilization efficiency of the organic light-emitting device 10 can be improved, resulting in higher luminous efficiency.

[0204] In an embodiment, in the organic light-emitting device 10, at least one emission layer in the m light-emitting units may include a host and a dopant, wherein the host may include a condensed ring compound represented by Formula 3, and the dopant may include a condensed ring compound represented by Formula 4, but the embodiments of the present disclosure are not limited thereto.

[0205] Figure 2 is a schematic cross-sectional view of an organic light-emitting device 20 according to an embodiment. Figure 2 An example of an organic light-emitting device when m is 2 is shown.

[0206] Figure 2The organic light-emitting device 20 includes a first electrode 110, a second electrode 190 facing the first electrode 110, a first light-emitting unit 153-1 stacked between the first electrode 110 and the second electrode 190, a second light-emitting unit 153-2 located between the first light-emitting unit 153-1 and the second electrode 190, and a charge generation layer 155 located between the first light-emitting unit 153-1 and the second light-emitting unit 153-2. The charge generation layer 155 includes an n-type charge generation layer 155N and a p-type charge generation layer 155P, and the p-type charge generation layer 155P may include a first doping layer 155P′ and a second doping layer 155P″.

[0207] The first electrode 110 , the first light emitting unit 153 - 1 , the second light emitting unit 153 - 2 , the charge generation layer 155 , and the second electrode 190 of the organic light emitting device 20 may be understood by referring to the corresponding descriptions provided above.

[0208] Figure 3 is a schematic cross-sectional view of an organic light-emitting device 30 according to an embodiment. Figure 3 An example of an organic light-emitting device when m is 3 is shown.

[0209] Figure 3 The organic light-emitting device 30 includes a first electrode 110, a second electrode 190 facing the first electrode, a first light-emitting unit 153-1 stacked between the first electrode 110 and the second electrode 190, a second light-emitting unit 153-2 located between the first light-emitting unit 153-1 and the second electrode 190, a third light-emitting unit 153-3 located between the second light-emitting unit 153-2 and the second electrode 190, a first charge generation layer 155-1 located between the first light-emitting unit 153-1 and the second light-emitting unit 153-2, and a second charge generation layer 155-2 located between the second light-emitting unit 153-2 and the third light-emitting unit 153-3.

[0210] The first charge generation layer 155-1 may include a first n-type charge generation layer 155N-1 and a first p-type charge generation layer 155P-1, and the first p-type charge generation layer 155P-1 may include a first doping layer 155P′-1 and a second doping layer 155P″-1.

[0211] The second charge generation layer 155-2 may include a second n-type charge generation layer 155N-2 and a second p-type charge generation layer 155P-2, and the second p-type charge generation layer 155P-2 may include a first doping layer 155P′-2 and a second doping layer 155P″-2.

[0212] The first electrode 110 , the first light emitting unit 153 - 1 , the second light emitting unit 153 - 2 , the third light emitting unit 153 - 3 , the first charge generation layer 155 - 1 , the second charge generation layer 155 - 2 , and the second electrode 190 of the organic light emitting device 30 may each be understood by referring to the description provided above.

[0213] Figure 3 The first charge generation layer 155-1 and the second charge generation layer 155-2 are shown to each include a first doping layer 155P'-1 or 155P'-2 and a second doping layer 155P"-1 or 155P"-2. In one or more embodiments, one of the first charge generation layer 155-1 and the second charge generation layer 155-2 may include a first doping layer and a second doping layer, and the other charge generation layer may have a p-type charge generation layer having a single-layer structure (e.g., consisting of a single layer).

[0214] [First electrode 110]

[0215] exist Figures 1 to 3 In the embodiment, the substrate may be additionally located below the first electrode 110 or above the second electrode 190. The substrate may be a glass substrate and / or a plastic substrate, each having excellent mechanical strength, thermal stability, transparency, surface smoothness, ease of handling, and water resistance.

[0216] The first electrode 110 may be formed by, for example, depositing or sputtering a material on a substrate for forming the first electrode 110. When the first electrode 110 is an anode, the material for the first electrode 110 may be selected from materials having a high work function to facilitate hole injection.

[0217] The first electrode 110 may be a reflective electrode, a semi-transmissive electrode, or a transmissive electrode. When the first electrode 110 is a transmissive electrode, the material used to form the first electrode 110 may be selected from indium tin oxide (ITO), indium zinc oxide (IZO), tin oxide (SnO2), zinc oxide (ZnO), and any combination thereof, but embodiments of the present disclosure are not limited thereto. In one or more embodiments, when the first electrode 110 is a semi-transmissive electrode or a reflective electrode, the material used to form the first electrode 110 may be selected from magnesium (Mg), silver (Ag), aluminum (Al), aluminum-lithium (Al-Li), calcium (Ca), magnesium-indium (Mg-In), magnesium-silver (Mg-Ag), and any combination thereof, but embodiments of the present disclosure are not limited thereto.

[0218] The first electrode 110 may have a single-layer structure or a multi-layer structure including two or more layers. In an embodiment, the first electrode 110 may have a triple-layer structure of ITO / Ag / ITO, but the structure of the first electrode 110 is not limited thereto.

[0219] [Organic layer 150]

[0220] The organic layer 150 is positioned on the first electrode 110. The organic layer 150 may include light emitting units 153, 153-1, 153-2, and 153-3.

[0221] Figure 2 or Figure 3 The organic light-emitting device shown in FIG includes two or three light-emitting units. However, the number of light-emitting units of the organic light-emitting device according to the present disclosure is not limited thereto, and when necessary, four or more light-emitting units may be included.

[0222] The organic layer 150 may further include a hole transport region between the first electrode 110 and the light emitting unit 153 , 153 - 1 , 153 - 2 , or 153 - 3 , and an electron transport region between the light emitting unit 153 , 153 - 1 , 153 - 2 , or 153 - 3 and the second electrode 190 .

[0223] [Hole Transport Region in Organic Layer 150]

[0224] The hole transport region may have i) a single-layer structure including (eg, consisting of) a single material, ii) a single-layer structure including a plurality of different materials, or iii) a multi-layer structure having a plurality of layers including a plurality of different materials.

[0225] The hole transport region may include at least one layer selected from the group consisting of a hole injection layer, a hole transport layer, an emission assisting layer, and an electron blocking layer.

[0226] In an embodiment, the hole transport region may have a single-layer structure including a plurality of different materials, or a multilayer structure of hole injection layer / hole transport layer, hole injection layer / hole transport layer / emission auxiliary layer, hole injection layer / emission auxiliary layer, hole transport layer / emission auxiliary layer or hole injection layer / hole transport layer / emission auxiliary layer, wherein the constituent layers of each structure are stacked sequentially in the order stated starting from the first electrode 110, but the structure of the hole transport region is not limited thereto.

[0227] The hole transport region may include at least one selected from the group consisting of m-MTDATA, TDATA, 2-TNATA, NPB (NPD), β-NPB, TPD, spiro-TPD, spiro-NPB, methylated NPB, TAPC, HMTPD, 4,4′,4″-tris(N-carbazolyl)triphenylamine (TCTA), polyaniline / dodecylbenzenesulfonic acid (PANI / DBSA), poly(3,4-ethylenedioxythiophene) / poly(4-styrenesulfonate) (PEDOT / PSS), polyaniline / camphorsulfonic acid (PANI / CSA), polyaniline / poly(4-styrenesulfonate) (PANI / PSS), a compound represented by Formula 201, and a compound represented by Formula 202:

[0228]

[0229]

[0230] Among them, in Equation 201 and Equation 202,

[0231] L 201 To L 204 Can be independently selected from substituted or unsubstituted C3-C 10 Cycloalkylene, substituted or unsubstituted C1-C 10 Heterocycloalkylene, substituted or unsubstituted C3-C 10 Cycloalkenylene, substituted or unsubstituted C1-C 10 Heterocycloalkenylene, substituted or unsubstituted C6-C 60 Arylene, substituted or unsubstituted C1-C 60 heteroarylene, a substituted or unsubstituted divalent non-aromatic fused polycyclic group and a substituted or unsubstituted divalent non-aromatic fused heteropolycyclic group,

[0232] L 205 Can be selected from *-O-*', *-S-*', *-N(Q 201 )-*', substituted or unsubstituted C1-C 20 Alkylene, substituted or unsubstituted C2-C 20 Alkenylene, substituted or unsubstituted C3-C 10 Cycloalkylene, substituted or unsubstituted C1-C 10 Heterocycloalkylene, substituted or unsubstituted C3-C 10 Cycloalkenylene, substituted or unsubstituted C1-C 10 Heterocycloalkenylene, substituted or unsubstituted C6-C 60 Arylene, substituted or unsubstituted C1-C 60 heteroarylene, a substituted or unsubstituted divalent non-aromatic fused polycyclic group and a substituted or unsubstituted divalent non-aromatic fused heteropolycyclic group,

[0233] xa1 to xa4 may each independently be an integer selected from 0 to 3,

[0234] xa5 may be an integer selected from 1 to 10, and

[0235] R 201 to R 204 and Q 201 Can be independently selected from substituted or unsubstituted C3-C 10 Cycloalkyl, substituted or unsubstituted C1-C 10 Heterocycloalkyl, substituted or unsubstituted C3-C 10 Cycloalkenyl, substituted or unsubstituted C1-C10 Heterocycloalkenyl, substituted or unsubstituted C6-C 60 Aryl, substituted or unsubstituted C6-C 60 Aryloxy, substituted or unsubstituted C6-C 60 Arylthio, substituted or unsubstituted C1-C 60 heteroaryl group, a substituted or unsubstituted monovalent non-aromatic fused polycyclic group, and a substituted or unsubstituted monovalent non-aromatic fused heteropolycyclic group.

[0236] In an embodiment, R in Formula 202 201 and R 202 may be optionally linked to each other via a single bond, a dimethyl-methylene group or a diphenyl-methylene group, and R 203 and R 204 They may optionally be linked to each other via single bonds, dimethyl-methylene or diphenyl-methylene.

[0237] In an embodiment, in Equation 201 and Equation 202,

[0238] L 201 To L 205 Can be independently selected from:

[0239] Phenylene, pentalenylene, indenylene, naphthylene, azulenylene, heptalenylene, indacenylene, acenaphthenylene, fluorenylene, spiro-difluorenylene, benzofluorenylene, dibenzofluorenylene, phenanthrenylene, phenanthrenylene, anthracenylene, fluoranthenylene, triphenylene, pyrenylene, 1,2-triphenylenylene, naphthphenylene, perylene, perylene, pyrenylene, 1,2-triphenylenylene, pyren ... Pentaphenylene, hexaphenylene, pentaphenylene, rubidinylene, corundylene, ovopheneylene, thienylene, furanylene, carbazolylene, indolylene, isoindolylene, benzofuranylene, benzothienylene, dibenzofuranylene, dibenzothienylene, benzocarbazolylene, dibenzocarbazolylene, dibenzothioylene, and pyridinylene; and

[0240] each of which is selected from at least one substituted phenylene, pentalenylene, indenylene, naphthylene, azulenylene, heptalenylene, indacenylene, acenaphthenylene, fluorenylene, spiro-difluorenylene, benzofluorenylene, dibenzofluorenylene, phenanthrenylene, phenanthrenylene, anthracenylene, fluoranthenylene, triphenylene, pyrenylene, 1,2-triphenylenylene, tetraphenylenylene, perylene, perylene, pentaphenanylene, hexaphenylenylene, phenanthrenylene, pyrenylene, 1,2-triphenylenylene, tetraphenylenylene, perylene, pentaphenanylene, hexaphenylenylene, phenanthren ... Pentaphenylene, rubinylene, coronene, oxadiene, thienylene, furanylene, carbazolylene, indolylene, isoindolylene, benzofuranylene, benzothienylene, dibenzofuranylene, dibenzothienylene, benzocarbazolylene, dibenzocarbazolylene, dibenzothioylene and pyridylene: deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C1-C20 Alkyl, C1-C 20 Alkoxy, cyclopentyl, cyclohexyl, cycloheptyl, cyclopentenyl, cyclohexenyl, phenyl, biphenyl, terphenyl, C1-C 10 Alkyl-substituted phenyl, phenyl substituted with -F, pentalenyl, indenyl, naphthyl, azulenyl, heptalenyl, indacenyl, acenaphthenyl, fluorenyl, spiro-bifluorenyl, benzofluorenyl, dibenzofluorenyl, phenalenyl, phenanthrenyl, anthracenyl, fluoranthenyl, triphenylene, pyrenyl, 1,2-triphenylenyl, tetracenyl, pyrenyl, peryl, pentaphenyl, hexacenyl, pentacenyl, rubenyl, coronenyl, oxadiphenyl, thienyl, furyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothienyl, dibenzofuranyl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl, dibenzothiorol, pyridyl, -Si(Q) 31 )(Q 32 )(Q 33 ) and -N(Q 31 )(Q 32 ),

[0241] where Q 31 To Q 33 Can be independently selected from C1-C 10 Alkyl, C1-C 10 Alkoxy, phenyl, biphenyl, terphenyl and naphthyl.

[0242] In one or more embodiments, xa1 to xa4 may each independently be 0, 1, or 2.

[0243] In one or more embodiments, xa5 may be 1, 2, 3, or 4.

[0244] In one or more embodiments, R 201 to R 204 and Q 201 each independently selected from phenyl, biphenyl, terphenyl, pentalenyl, indenyl, naphthyl, azulenyl, heptalenyl, indacenyl, acenaphthenyl, fluorenyl, spiro-bifluorenyl, benzofluorenyl, dibenzofluorenyl, phenalenyl, phenanthrenyl, anthracenyl, fluoranthenyl, triphenylene, pyrenyl, 1,2-triphenylenyl, naphthacene, pyrenyl, perylenyl, pentaphenyl, hexacenyl, pentacene, rubenyl, coronenyl, ovophene, thienyl, furyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothienyl, dibenzofuranyl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilyl, and pyridyl; and

[0245] phenyl, biphenyl, terphenyl, pentalenyl, indenyl, naphthyl, azulenyl, heptalenyl, indacenyl, acenaphthenyl, fluorenyl, spiro-bifluorenyl, benzofluorenyl, dibenzofluorenyl, phenalenyl, phenanthrenyl, anthracenyl, fluoranthenyl, triphenylene, pyrenyl, 1,2-triphenylenyl, naphthacene, pyrenyl, peryl, pentaphenanthrenyl, hexacenyl, Pentacene, rubinyl, corundum, oxadiazole, thienyl, furanyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothiophenyl, dibenzofuranyl, dibenzothiophenyl, benzocarbazolyl, dibenzocarbazolyl, dibenzothiophenyl and pyridyl: deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C1-C 20 Alkyl, C1-C 20 Alkoxy, cyclopentyl, cyclohexyl, cycloheptyl, cyclopentenyl, cyclohexenyl, phenyl, biphenyl, terphenyl, C1-C 10 Alkyl-substituted phenyl, phenyl substituted with -F, pentalenyl, indenyl, naphthyl, azulenyl, heptalenyl, indacenyl, acenaphthenyl, fluorenyl, spiro-bifluorenyl, benzofluorenyl, dibenzofluorenyl, phenalenyl, phenanthrenyl, anthracenyl, fluoranthenyl, triphenylene, pyrenyl, 1,2-triphenylenyl, tetracenyl, pyrenyl, peryl, pentaphenyl, hexacenyl, pentacenyl, rubenyl, coronenyl, oxadiphenyl, thienyl, furyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothienyl, dibenzofuranyl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl, dibenzothiorol, pyridyl, -Si(Q) 31 )(Q 32 )(Q 33 ) and -N(Q 31 )(Q 32 ),

[0246] where Q 31 To Q 33 Each may be independently the same as above.

[0247] In one or more embodiments, R selected from Formula 201 201 to R 203 At least one of can be independently selected from:

[0248] Fluorenyl, spiro-bifluorenyl, carbazolyl, dibenzofuranyl, and dibenzothiophenyl; and

[0249] Fluorenyl, spiro-bifluorenyl, carbazolyl, dibenzofuranyl and dibenzothiophenyl, each substituted by at least one selected from the group consisting of deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C1-C 20 Alkyl, C1-C 20Alkoxy, cyclopentyl, cyclohexyl, cycloheptyl, cyclopentenyl, cyclohexenyl, phenyl, biphenyl, terphenyl, C1-C 10 alkyl-substituted phenyl, phenyl substituted by -F, naphthyl, fluorenyl, spiro-bifluorenyl, carbazolyl, dibenzofuranyl and dibenzothiophenyl,

[0250] However, the embodiments of the present disclosure are not limited thereto.

[0251] In one or more embodiments, in Formula 202, i) R 201 and R 202 can be linked to each other via a single bond, and / or ii) R 203 and R 204 can be connected to each other via a single bond.

[0252] In one or more embodiments, R in Formula 202 201 to R 204 At least one of can be selected from:

[0253] carbazolyl; and

[0254] Carbazolyl substituted with at least one selected from the group consisting of deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C1-C 20 Alkyl, C1-C 20 Alkoxy, cyclopentyl, cyclohexyl, cycloheptyl, cyclopentenyl, cyclohexenyl, phenyl, biphenyl, terphenyl, C1-C 10 alkyl-substituted phenyl, phenyl substituted by -F, naphthyl, fluorenyl, spiro-bifluorenyl, carbazolyl, dibenzofuranyl and dibenzothiophenyl,

[0255] However, the embodiments of the present disclosure are not limited thereto.

[0256] The compound represented by Formula 201 can be represented by Formula 201-1:

[0257]

[0258]

[0259] In an embodiment, the compound represented by Formula 201 may be represented by Formula 201-2, but embodiments of the present disclosure are not limited thereto:

[0260]

[0261] In one or more embodiments, the compound represented by Formula 201 may be represented by Formula 201-2(1), but embodiments of the present disclosure are not limited thereto:

[0262]

[0263] In one or more embodiments, the compound represented by Formula 201 may be represented by Formula 201A:

[0264]

[0265] In one or more embodiments, the compound represented by Formula 201 may be represented by Formula 201A(1), but embodiments of the present disclosure are not limited thereto:

[0266]

[0267] In one or more embodiments, the compound represented by Formula 201 may be represented by Formula 201A-1, but embodiments of the present disclosure are not limited thereto:

[0268]

[0269]

[0270] In one or more embodiments, the compound represented by Formula 202 may be represented by Formula 202-1:

[0271] In one or more embodiments, the compound represented by Formula 202 may be represented by Formula 202-1(1):

[0272] In one embodiment, the compound represented by Formula 202 can be represented by Formula 202A:

[0273]

[0274]

[0275] In one or more embodiments, the compound represented by Formula 202 may be represented by Formula 202A-1:

[0276]

[0277] In equations 201-1, 201-2, 201-2(1), 201A, 201A(1), 201A-1, 202-1, 202-1(1), 202A, and 202A-1,

[0278] L 201 To L 203 , xa1 to xa3, xa5 and R 202 to R 204 can be independently the same as above,

[0279] L 205 may be selected from phenylene and fluorenylene,

[0280] X 211 Can be selected from O, S and N (R 211 ),

[0281] X 212 Can be selected from O, S and N (R 212 ),

[0282] R 211 and R 212 Can be combined with R 203 Same as described, and

[0283] R 213 to R 217 can be independently selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C1-C 20 Alkyl, C1-C 20 Alkoxy, cyclopentyl, cyclohexyl, cycloheptyl, cyclopentenyl, cyclohexenyl, phenyl, biphenyl, terphenyl, C1-C 10 Alkyl-substituted phenyl, -F-substituted phenyl, pentalenyl, indenyl, naphthyl, azulenyl, heptalenyl, indacenyl, acenaphthenyl, fluorenyl, spiro-bifluorenyl, benzofluorenyl, dibenzofluorenyl, phenalenyl, phenanthrenyl, anthracenyl, fluoranthenyl, triphenylene, pyrenyl, 1,2-triphenylenyl, tetracenyl, pyrenyl, perylenyl, pentaphenyl, hexacenyl, pentacenyl, rubenyl, coronenyl, ovophene, thienyl, furyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothienyl, dibenzofuranyl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, and pyridinyl.

[0284] The hole transport region may include at least one compound selected from compounds HT1 to HT48, but embodiments of the present disclosure are not limited thereto:

[0285]

[0286]

[0287]

[0288]

[0289] The hole transport region may have a to about For example, about to about When the hole transport region includes at least one selected from a hole injection layer and a hole transport layer, the thickness of the hole injection layer may be about to about For example, about to about about to about And the thickness of the hole transport layer can be about to about For example, about to about When the thicknesses of the hole transport region, the hole injection layer, and the hole transport layer are within these ranges, satisfactory hole transport characteristics can be obtained without a significant increase in driving voltage.

[0290] The emission-assisting layer can increase the light emission efficiency of the device by compensating the optical resonance distance according to the wavelength of light emitted by the emission layer, and the electron blocking layer can block or reduce the flow of electrons from the electron transport region. The emission-assisting layer and the electron blocking layer can each include the same material as described above.

[0291] [p-dopant]

[0292] In addition to these materials, the hole transport region may further include a charge generating material for improving the conductive property. The charge generating material may be substantially uniformly or non-uniformly dispersed in the hole transport region.

[0293] The charge generating material may be, for example, a p-dopant.

[0294] In an embodiment, the lowest unoccupied molecular orbital (LUMO) energy level of the p-dopant may be -3.5 eV or lower.

[0295] The p-dopant may include at least one selected from quinone derivatives, metal oxides, and cyano-containing compounds, but embodiments of the present disclosure are not limited thereto.

[0296] In an embodiment, the p-dopant may include at least one selected from the group consisting of:

[0297] Quinone derivatives (such as tetracyanoquinodimethane (TCNQ) and / or 2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane (F4-TCNQ));

[0298] Metal oxides (such as tungsten oxide and / or molybdenum oxide);

[0299] 1,4,5,8,9,12-Hexaazatriphenylene-hexanitrile (HAT-CN); and

[0300] The compound represented by formula 221,

[0301] However, the embodiments of the present disclosure are not limited thereto:

[0302]

[0303]

[0304] Where, in formula 221,

[0305] R 221 to R 223 Can be independently selected from substituted or unsubstituted C3-C 10 Cycloalkyl, substituted or unsubstituted C1-C 10 Heterocycloalkyl, substituted or unsubstituted C3-C 10 Cycloalkenyl, substituted or unsubstituted C1-C 10 Heterocycloalkenyl, substituted or unsubstituted C6-C 60 Aryl, substituted or unsubstituted C1-C 60 heteroaryl, a substituted or unsubstituted monovalent non-aromatic fused polycyclic group and a substituted or unsubstituted monovalent non-aromatic fused heteropolycyclic group, and is selected from R 221 to R 223 At least one of them may have a C1-C1-substituted group selected from cyano, -F, -Cl, -Br, -I, 20 Alkyl, C1-C substituted by -Cl 20 Alkyl, C1-C substituted by -Br 20 Alkyl and C1-C substituted by -I 20 At least one substituent in the alkyl group.

[0306] [Emission Layer in Organic Layer 150]

[0307] In the organic light-emitting device 10, 20, or 30, the light-emitting unit 153, 153-1, 153-2, or 153-3 includes an emission layer, and the emission layer may have a structure in which at least two layers selected from the red emission layer, the green emission layer, the yellow emission layer, and the blue emission layer may be stacked in contact with each other or separately. In an embodiment, the emission layer may have a structure in which two or more materials selected from the red light-emitting material, the green light-emitting material, the yellow light-emitting material, and the blue light-emitting material are mixed without layer division.

[0308] The emission layer may further include an electron transport auxiliary layer above the emission layer and / or a hole transport auxiliary layer below the emission layer. The hole transport auxiliary layer may be used as a hole transport layer, an emission auxiliary layer and / or an electron blocking layer, and the electron transport auxiliary layer may be used as a buffer layer, a hole blocking layer, an electron control layer and / or an electron transport layer. The hole transport auxiliary layer and the electron transport auxiliary layer may each include the same materials as described for the hole transport region and the electron transport region, respectively.

[0309] The emission layer may include a host and a dopant. The dopant may include at least one selected from a phosphorescent dopant and a fluorescent dopant.

[0310] The amount of the dopant in the emission layer may be about 0.01 to about 15 parts by weight based on about 100 parts by weight of the host, but embodiments of the present disclosure are not limited thereto.

[0311] The emissive layer may have a to about For example, about to about When the thickness of the emission layer is within this range, excellent light emission characteristics can be obtained without a significant increase in driving voltage.

[0312] [Subject in the emission layer]

[0313] The host may include a condensed ring compound represented by Formula 3.

[0314] In one or more embodiments, the host may include a compound represented by Formula 301:

[0315] Formula 301

[0316] [Ar 301 ] xb11 -[(L 301 ) xb1 -R 301 ] xb21 ,

[0317] Wherein, in formula 301,

[0318] Ar 301 Can be substituted or unsubstituted C5-C 60 Carbocyclic group or substituted or unsubstituted C1-C 60 Heterocyclic groups,

[0319] xb11 can be 1, 2 or 3,

[0320] L 301 Can be selected from substituted or unsubstituted C3-C 10 Cycloalkylene, substituted or unsubstituted C1-C 10 Heterocycloalkylene, substituted or unsubstituted C3-C 10 Cycloalkenylene, substituted or unsubstituted C1-C 10 Heterocycloalkenylene, substituted or unsubstituted C6-C 60 Arylene, substituted or unsubstituted C1-C 60 heteroarylene, a substituted or unsubstituted divalent non-aromatic fused polycyclic group and a substituted or unsubstituted divalent non-aromatic fused heteropolycyclic group,

[0321] xb1 may be an integer selected from 0 to 5,

[0322] R 301 can be selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, substituted or unsubstituted C1-C 60 Alkyl, substituted or unsubstituted C2-C 60 Alkenyl, substituted or unsubstituted C2-C 60 Alkynyl, substituted or unsubstituted C1-C 60 Alkoxy, substituted or unsubstituted C3-C 10 Cycloalkyl, substituted or unsubstituted C1-C 10 Heterocycloalkyl, substituted or unsubstituted C3-C 10 Cycloalkenyl, substituted or unsubstituted C1-C 10 Heterocycloalkenyl, substituted or unsubstituted C6-C 60 Aryl, substituted or unsubstituted C6-C 60 Aryloxy, substituted or unsubstituted C6-C 60 Arylthio, substituted or unsubstituted C1-C 60 heteroaryl, substituted or unsubstituted monovalent non-aromatic fused polycyclic group, substituted or unsubstituted monovalent non-aromatic fused heteropolycyclic group, -Si(Q 301 )(Q 302 )(Q 303 )、-N(Q 301 )(Q 302 )、-B(Q 301 )(Q 302 ),-C(=O)(Q 301 )、-S(=O)2(Q 301 ) and -P(=O)(Q 301 )(Q 302 ),as well as

[0323] xb21 may be an integer selected from 1 to 5,

[0324] where Q 301 To Q 303 Can be independently selected from C1-C 10 Alkyl, C1-C 10 an alkoxy group, a phenyl group, a biphenyl group, a terphenyl group, and a naphthyl group, but the embodiments of the present disclosure are not limited thereto.

[0325] In an embodiment, Ar in Formula 301 301 You can choose from:

[0326] naphthyl, fluorenyl, spiro-bifluorenyl, benzofluorenyl, dibenzofluorenyl, phenalenyl, phenanthrenyl, anthracenyl, fluoranthenyl, triphenylene, pyrenyl, 1,2-triphenylenyl, naphthacene, pyrenyl, perylenyl, pentaphenanthrenyl, indenoanthryl, dibenzofuranyl, and dibenzothiophenyl; and

[0327] each substituted with at least one of the following: naphthyl, fluorenyl, spiro-bifluorenyl, benzofluorenyl, dibenzofluorenyl, phenaltenyl, phenanthrenyl, anthracenyl, fluoranthenyl, triphenylene, pyrenyl, 1,2-triphenylenyl, naphthacene, pyrenyl, perylene, pentaphenanthrenyl, indenoanthryl, dibenzofuranyl and dibenzothiophenyl: deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, nitro, amidino, hydrazine, hydrazone, C1-C 20 Alkyl, C1-C 20 Alkoxy, phenyl, biphenyl, terphenyl, naphthyl, -Si(Q 31 )(Q 32 )(Q 33 )、-N(Q 31 )(Q 32 )、-B(Q 31 )(Q 32 ),-C(=O)(Q 31 )、-S(=O)2(Q 31 ) and -P(=O)(Q 31 )(Q 32 ),

[0328] where Q 31 To Q 33 Can be independently selected from C1-C 10 Alkyl, C1-C 10 an alkoxy group, a phenyl group, a biphenyl group, a terphenyl group, and a naphthyl group, but the embodiments of the present disclosure are not limited thereto.

[0329] When xb11 in Formula 301 is two or more, two or more Ar 301 Can be connected via one-touch.

[0330] In one or more embodiments, the compound represented by Formula 301 may be represented by one of Formula 301-1 or Formula 301-2:

[0331]

[0332] In formula 301-1 and formula 301-2

[0333] A 301 To A 304Each of the rings may be independently selected from a benzene ring, a naphthalene ring, a phenanthrene ring, a fluoranthene ring, a triphenylene ring, a pyrene ring, a 1,2-triphenylene ring, a pyridine ring, a pyrimidine ring, an indene ring, a fluorene ring, a spiro-bifluorene ring, a benzofluorene ring, a dibenzofluorene ring, an indole ring, a carbazole ring, a benzocarbazole ring, a dibenzocarbazole ring, a furan ring, a benzofuran ring, a dibenzofuran ring, a naphthofuran ring, a benzonaphthofuran ring, a dinaphthofuran ring, a thiophene ring, a benzothiophene ring, a dibenzothiophene ring, a naphthothiophene ring, a benzonaphthothiophene ring and a dinaphthothiophene ring,

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

[0335] R 311 to R 314 can be independently selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C1-C 20 Alkyl, C1-C 20 Alkoxy, phenyl, biphenyl, terphenyl, naphthyl, -Si(Q 31 )(Q 32 )(Q 33 )、-N(Q 31 )(Q 32 )、-B(Q 31 )(Q 32 ),-C(=O)(Q 31 )、-S(=O)2(Q 31 ) and -P(=O)(Q 31 )(Q 32 ),

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

[0337] L 301 、xb1、R 301 and Q 31 To Q 33 can be independently the same as above,

[0338] L 302 To L 304 Can be combined with L independently 301 Same as described,

[0339] xb2 to xb4 may each independently be the same as described in conjunction with xb1, and

[0340] R 302 to R 304 Each independently binds to R 301 Same as described.

[0341] In an embodiment, L in Formula 301, Formula 301-1, and Formula 301-2 301 To L 304 Can be independently selected from:

[0342] Phenylene, naphthylene, fluorenylene, spiro-bifluorenylene, benzofluorenylene, dibenzofluorenylene, phenanthrenylene, anthracenylene, fluoranthenylene, triphenylene, pyrenylene, 1,2-triphenylenylene, perylene, pentaphenylene, hexaphenylene, pentacenylenylene, thienylene, furanylene, carbazolylene, indolylene, isoindolylene, benzofuranylene, benzothienylene, dibenzofuranylene, dibenzothienylene, benzocarbazolylene, dibenzocarbazolylene, dibenzothioxylene, pyridylene, imidazolylene, pyrazolylene, thienylene oxazolyl, isothiazolyl, oxazolyl, isoxazolyl, thiadiazolylene, oxadiazolyl, pyrazinyl, pyrimidinyl, pyridazinyl, triazinyl, quinolinyl, isoquinolinyl, benzoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolylene, benzisothiazolylene, benzoxazolylene, benzisoxazolylene, triazolyl, tetrazolylene, imidazopyridinyl, imidazopyrimidinyl, and azacarbazolylene; and

[0343] each substituted with at least one selected from the group consisting of phenylene, naphthylene, fluorenylene, spiro-bifluorenylene, benzofluorenylene, dibenzofluorenylene, phenanthrenylene, anthracenylene, fluoranthenylene, triphenylene, pyrenylene, 1,2-triphenylenylene, perylene, pentaphenylene, hexaphenylene, pentacenylenylene, thienylene, furanylene, carbazolylene, indolylene, isoindolylene, benzofuranylene, benzothienylene, dibenzofuranylene, dibenzothienylene, benzocarbazolylene, dibenzocarbazolylene, dibenzothioylene, pyridinylene, imidazolylene, pyrazolylene, thiazolylene, isothiazolylene, oxazolylene oxazolyl, isoxazolylene, thiadiazolylene, oxadiazolylene, pyrazinylene, pyrimidinylene, pyridazinylene, triazinylene, quinolinylene, isoquinolinylene, benzoquinolinylene, phthalazinylene, naphthyridinylene, quinoxalinylene, quinazolinylene, cinnolinylene, phenanthridinylene, acridinylene, phenanthrolinylene, phenazinylene, benzimidazolylene, benzisothiazolylene, benzoxazolylene, benzisoxazolylene, triazolylene, tetrazolylene, imidazopyridinylene, imidazopyrimidinylene and azacarbazolylene: deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazinyl, hydrazone, C1-C 20 Alkyl, C1-C 20Alkoxy, phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spiro-bifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthryl, anthracenyl, fluoranthenyl, triphenylene, pyrenyl, 1,2-triphenylenyl, perylene, pentaphenanthrenyl, hexacenyl, pentacene, thienyl, furyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothienyl, dibenzofuranyl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl, dibenzothioroyl, pyridyl, imidazolyl, pyridyl oxazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, thiadiazolyl, oxadiazolyl, pyrazinyl, pyrimidinyl, pyridazinyl, triazinyl, quinolinyl, isoquinolinyl, benzoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, benzisothiazolyl, benzoxazolyl, benzisoxazolyl, triazolyl, tetrazolyl, imidazopyridinyl, imidazopyrimidinyl, azacarbazolyl, -Si(Q 31 )(Q 32 )(Q 33 )、-N(Q 31 )(Q 32 )、-B(Q 31 )(Q 32 ),-C(=O)(Q 31 )、-S(=O)2(Q 31 ) and -P(=O)(Q 31 )(Q 32 ),

[0344] where Q 31 To Q 33 Each may be independently the same as above.

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

[0346] Phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spiro-bifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthryl, anthracenyl, fluoranthenyl, triphenylene, pyrenyl, 1,2-triphenylenyl, perylene, pentaphenanthrenyl, hexacenyl, pentacene, thienyl, furanyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothienyl, dibenzofuranyl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl, dibenzothiorol, pyridyl, imidazolyl, pyrazole oxazolyl, oxadiazolyl, pyrazinyl, pyrimidinyl, pyridazinyl, triazinyl, quinolinyl, isoquinolinyl, benzoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, benzisothiazolyl, benzoxazolyl, benzisoxazolyl, triazolyl, tetrazolyl, imidazopyridinyl, imidazopyrimidinyl, and azacarbazolyl; and

[0347] phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spiro-bifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthryl, anthracenyl, fluoranthenyl, triphenylene, pyrenyl, 1,2-triphenylenyl, perylene, pentaphenanthrenyl, hexacenyl, pentacene, thienyl, furanyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothienyl, dibenzofuranyl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl, dibenzothiorol, pyridyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl , oxazolyl, isoxazolyl, thiadiazolyl, oxadiazolyl, pyrazinyl, pyrimidinyl, pyridazinyl, triazinyl, quinolyl, isoquinolyl, benzoquinolyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, benzisothiazolyl, benzoxazolyl, benzisoxazolyl, triazolyl, tetrazolyl, imidazopyridinyl, imidazopyrimidinyl and azacarbazolyl: deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazinyl, hydrazone, C1-C 20 Alkyl, C1-C 20Alkoxy, phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spiro-bifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthryl, anthracenyl, fluoranthenyl, triphenylene, pyrenyl, 1,2-triphenylenyl, perylene, pentaphenanthrenyl, hexacenyl, pentacene, thienyl, furyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothienyl, dibenzofuranyl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl, dibenzothioroyl, pyridyl, imidazolyl, pyridyl oxazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, thiadiazolyl, oxadiazolyl, pyrazinyl, pyrimidinyl, pyridazinyl, triazinyl, quinolinyl, isoquinolinyl, benzoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, benzisothiazolyl, benzoxazolyl, benzisoxazolyl, triazolyl, tetrazolyl, imidazopyridinyl, imidazopyrimidinyl, azacarbazolyl, -Si(Q 31 )(Q 32 )(Q 33 )、-N(Q 31 )(Q 32 )、-B(Q 31 )(Q 32 ),-C(=O)(Q 31 )、-S(=O)2(Q 31 ) and -P(=O)(Q 31 )(Q 32 ),

[0348] where Q 31 To Q 33 Each may be independently the same as above.

[0349] In one or more embodiments, the host may include an alkaline earth metal complex or a Zn complex. In an embodiment, the host may be selected from a Be complex (eg, compound H55), a Mg complex, and a Zn complex.

[0350] The host may include at least one selected from the group consisting of 9,10-di(2-naphthyl)anthracene (ADN), 2-methyl-9,10-bis(naphthalene-2-yl)anthracene (MADN), 9,10-di(2-naphthyl)-2-tert-butyl-anthracene (TBADN), 4,4′-bis(N-carbazolyl)-1,1′-biphenyl (CBP), 1,3-di-9-carbazolylbenzene (mCP), 1,3,5-tris(carbazol-9-yl)benzene (TCP), and compounds H1 to H55 and BH1 to BH13.

[0351]

[0352]

[0353]

[0354]

[0355] [Phosphorescent Dopant Included in Emission Layer]

[0356] The phosphorescent dopant may include an organometallic complex represented by Formula 401:

[0357] Formula 401

[0358] M(L 401 ) xc1 (L 402 ) xc2

[0359] Wherein, in formula 401,

[0360] M may be selected from iridium (Ir), platinum (Pt), palladium (Pd), osmium (Os), titanium (Ti), zirconium (Zr), hafnium (Hf), europium (Eu), terbium (Tb), rhodium (Rh) and thulium (Tm),

[0361] L 401 may be a ligand represented by Formula 402, and xc1 may be 1, 2, or 3, wherein when xc1 is 2 or greater, two or more L 401 may be the same as or different from each other,

[0362] L 402 may be an organic ligand, and xc2 may be an integer selected from 0 to 4, wherein when xc2 is 2 or greater, two or more L 402 may be the same as or different from each other,

[0363]

[0364] In formula 402,

[0365] X 401 To X 404 may each independently be nitrogen or carbon,

[0366] X 401 and X 403 Can be connected via single or double bonds, and X 402 and X 404 Can be connected via single or double bonds,

[0367] A 401 and A 402 Can be independently C5-C 60 Carbocyclic group or C1-C 60 Heterocyclic groups,

[0368] X 405It can be a single bond, *-O-*', *-S-*', *-C(=O)-*', *-N(Q 411 )-*'、*-C(Q 411 )(Q 412 )-*'、*-C(Q 411 )=C(Q 412 )-*'、*-C(Q 411 )=*' or *=C=*', where Q 411 and Q 412 can be independently hydrogen, deuterium, C1-C 20 Alkyl, C1-C 20 an alkoxy group, a phenyl group, a biphenyl group, a terphenyl group or a naphthyl group,

[0369] X 406 Can be a single bond, O or S,

[0370] R 401 and R 402 can be independently selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, substituted or unsubstituted C1-C 20 Alkyl, substituted or unsubstituted C1-C 20 Alkoxy, substituted or unsubstituted C3-C 10 Cycloalkyl, substituted or unsubstituted C1-C 10 Heterocycloalkyl, substituted or unsubstituted C3-C 10 Cycloalkenyl, substituted or unsubstituted C1-C 10 Heterocycloalkenyl, substituted or unsubstituted C6-C 60 Aryl, substituted or unsubstituted C6-C 60 Aryloxy, substituted or unsubstituted C6-C 60 Arylthio, substituted or unsubstituted C1-C 60 heteroaryl, substituted or unsubstituted monovalent non-aromatic fused polycyclic group, substituted or unsubstituted monovalent non-aromatic fused heteropolycyclic group, -Si(Q 401 )(Q 402 )(Q 403 )、-N(Q 401 )(Q 402 )、-B(Q 401 )(Q 402 ),-C(=O)(Q 401 )、-S(=O)2(Q 401 ) and -P(=O)(Q 401 )(Q 402 ), and Q 401 To Q 403 Can be independently selected from C1-C 10 Alkyl, C1-C10 Alkoxy, C6-C 20 Aryl and C1-C 20 heteroaryl,

[0371] xc11 and xc12 may each independently be an integer selected from 0 to 10, and

[0372] * and *' in Formula 402 each indicate a binding site with M in Formula 401.

[0373] In an embodiment, A in Equation 402 401 and A 402 Each of the phenyl, naphthyl, fluorenyl, spiro-bifluorenyl, indenyl, pyrrolyl, thienyl, furyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, pyridinyl, pyrazinyl, pyrimidinyl, pyridazinyl, quinolyl, isoquinolyl, benzoquinolyl, quinoxalinyl, quinazolinyl, carbazolyl, benzimidazolyl, benzofuranyl, benzothiophenyl, benzisothiophenyl, benzoxazolyl, benzisoxazolyl, triazolyl, tetrazolyl, oxadiazolyl, triazinyl, dibenzofuranyl and dibenzothiophenyl.

[0374] In one or more embodiments, in Formula 402, i) X 401 Can be nitrogen and X 402 Can be carbon, or ii) X 401 and X 402 They can each be nitrogen at the same time.

[0375] In one or more embodiments, R in Formula 402 401 and R 402 Can be independently selected from:

[0376] Hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C1-C 20 Alkyl and C1-C 20 alkoxy;

[0377] Each of the following C1-C 20 Alkyl and C1-C 20 Alkoxy: deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, nitro, amidino, hydrazine, hydrazone, phenyl, naphthyl, cyclopentyl, cyclohexyl, adamantyl, norbornyl and norbornenyl;

[0378] cyclopentyl, cyclohexyl, adamantyl, norbornyl, norbornenyl, phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, pyridyl, pyrazinyl, pyrimidinyl, pyridazinyl, triazinyl, quinolyl, isoquinolyl, quinoxalinyl, quinazolinyl, carbazolyl, dibenzofuranyl, and dibenzothiophenyl;

[0379] cyclopentyl, cyclohexyl, adamantyl, norbornyl, norbornenyl, phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, pyridyl, pyrazinyl, pyrimidinyl, pyridazinyl, triazinyl, quinolyl, isoquinolyl, quinoxalinyl, quinazolinyl, carbazolyl, dibenzofuranyl and dibenzothiophenyl, each substituted by at least one selected from the group consisting of deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazinyl, hydrazone, C1-C 20 Alkyl, C1-C 20 Alkoxy, cyclopentyl, cyclohexyl, adamantyl, norbornyl, norbornenyl, phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, pyridyl, pyrazinyl, pyrimidinyl, pyridazinyl, triazinyl, quinolyl, isoquinolyl, quinoxalinyl, quinazolinyl, carbazolyl, dibenzofuranyl, and dibenzothiophenyl; and -Si(Q 401 )(Q 402 )(Q 403 )、-N(Q 401 )(Q 402 )、-B(Q 401 )(Q 402 ),-C(=O)(Q 401 )、-S(=O)2(Q 401 ) and -P(=O)(Q 401 )(Q 402 ),

[0380] where Q 401 To Q 403 Can be independently selected from C1-C 10 Alkyl, C1-C 10 alkoxy, phenyl, biphenyl, and naphthyl, but the embodiments of the present disclosure are not limited thereto.

[0381] In one or more embodiments, when xc1 in Formula 401 is 2 or greater, two or more L 401 Two A's 401 Optionally, X 407 (which is a linking group) connected to each other, two A 402 Optionally, X 408 (which is a linking group) are connected to each other, see compounds PD1 to PD4 and PD7. 407 and X 408 Each of them can be independently a single bond, *-O-*', *-S-*', *-C(=O)-*', *-N(Q 413 )-*'、*-C(Q 413 )(Q 414 )-*' or *-C(Q 413 )=C(Q414 )-*'(where Q 413 and Q 414 can be independently hydrogen, deuterium, C1-C 20 Alkyl, C1-C 20 alkoxy, phenyl, biphenyl, terphenyl or naphthyl), but the embodiments of the present disclosure are not limited thereto.

[0382] L in Formula 401 402 Can be a monovalent, divalent or trivalent organic ligand. In an embodiment, L 402 The group may be selected from halogen, diketone (eg, acetylacetonate), carboxylic acid (eg, pyridinecarboxylic acid), -C(=O), isonitrile, -CN, and phosphorus group (eg, phosphine or phosphite), but the embodiments of the present disclosure are not limited thereto.

[0383] In one or more embodiments, the phosphorescent dopant may be selected from, for example, compounds PD1 to PD25, but embodiments of the present disclosure are not limited thereto:

[0384]

[0385] [Fluorescent dopants in the emission layer]

[0386] The fluorescent dopant may include a condensed ring compound represented by Formula 4.

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

[0388] In an embodiment, the fluorescent dopant may include a compound represented by Formula 501:

[0389]

[0390]

[0391] Wherein, in formula 501,

[0392] Ar 501 Can be substituted or unsubstituted C5-C 60 Carbocyclic group or substituted or unsubstituted C1-C 60 Heterocyclic groups,

[0393] L 501 To L 503 Can be independently selected from substituted or unsubstituted C3-C 10 Cycloalkylene, substituted or unsubstituted C1-C 10 Heterocycloalkylene, substituted or unsubstituted C3-C 10 Cycloalkenylene, substituted or unsubstituted C1-C 10 Heterocycloalkenylene, substituted or unsubstituted C6-C60 Arylene, substituted or unsubstituted C1-C 60 heteroarylene, a substituted or unsubstituted divalent non-aromatic fused polycyclic group and a substituted or unsubstituted divalent non-aromatic fused heteropolycyclic group,

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

[0395] R 501 and R 502 Can be independently selected from substituted or unsubstituted C3-C 10 Cycloalkyl, substituted or unsubstituted C1-C 10 Heterocycloalkyl, substituted or unsubstituted C3-C 10 Cycloalkenyl, substituted or unsubstituted C1-C 10 Heterocycloalkenyl, substituted or unsubstituted C6-C 60 Aryl, substituted or unsubstituted C6-C 60 Aryloxy, substituted or unsubstituted C6-C 60 Arylthio, substituted or unsubstituted C1-C 60 heteroaryl, a substituted or unsubstituted monovalent non-aromatic fused polycyclic group, and a substituted or unsubstituted monovalent non-aromatic fused heteropolycyclic group, and

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

[0397] In an embodiment, Ar in Formula 501 501 You can choose from:

[0398] naphthyl, heptalenyl, fluorenyl, spiro-bifluorenyl, benzofluorenyl, dibenzofluorenyl, phenalenyl, phenanthrenyl, anthracenyl, fluoranthenyl, triphenylene, pyrenyl, 1,2-triphenylenyl, naphthacene, phenanthrenyl, perylenyl, pentaphenanthrenyl, indenoanthryl, and indenophenanthrenyl; and

[0399] each of at least one substituted naphthyl, heptalenyl, fluorenyl, spiro-bifluorenyl, benzofluorenyl, dibenzofluorenyl, phenalenyl, phenanthrenyl, anthracenyl, fluoranthenyl, triphenylene, pyrenyl, 1,2-triphenylenyl, naphthacene, pyrenyl, peryl, pentaphenanthrenyl, indenoanthryl and indenophenanthrenyl, each of which is selected from the group consisting of deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, nitro, amidino, hydrazine, hydrazone, C1-C 20 Alkyl, C1-C 20 Alkoxy, phenyl, biphenyl, terphenyl and naphthyl.

[0400] In one or more embodiments, L in Formula 501 501 To L 503 Can be independently selected from:

[0401] Phenylene, naphthylene, fluorenylene, spiro-bifluorenylene, benzofluorenylene, dibenzofluorenylene, phenanthrenylene, anthracenylene, fluoranthenylene, triphenylene, pyrenylene, 1,2-triphenylenylene, perylene, pentaphenylene, hexaphenylene, pentacenylenylene, thienylene, furanylene, carbazolylene, indolylene, isoindolylene, benzofuranylene, benzothienylene, dibenzofuranylene, dibenzothienylene, benzocarbazolylene, dibenzocarbazolylene, dibenzothioxylene, and pyridylene; and

[0402] each substituted with at least one of the following: phenylene, naphthylene, fluorenylene, spiro-bifluorenylene, benzofluorenylene, dibenzofluorenylene, phenanthrenylene, anthracenylene, fluoranthenylene, triphenylene, pyrenylene, 1,2-triphenylenylene, perylene, pentaphenylene, hexaphenylene, pentacenylenylene, thienylene, furanylene, carbazolylene, indolylene, isoindolylene, benzofuranylene, benzothienylene, dibenzofuranylene, dibenzothienylene, benzocarbazolylene, dibenzocarbazolylene, dibenzothioxylene, and pyridylene; deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C1-C 20 Alkyl, C1-C 20 Alkoxy, phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spiro-bifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthryl, anthracenyl, fluoranthenyl, triphenylene, pyrenyl, 1,2-triphenylenyl, perylenyl, pentaphenanthrenyl, hexacenyl, pentacene, thienyl, furyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothienyl, dibenzofuranyl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl, dibenzothiorolyl, and pyridyl.

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

[0404] phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spiro-bifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthryl, anthracenyl, fluoranthenyl, triphenylene, pyrenyl, 1,2-triphenylenyl, perylenyl, pentaphenanthrenyl, hexacenyl, pentacene, thienyl, furanyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothienyl, dibenzofuranyl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl, dibenzothiorolyl, and pyridyl; and

[0405] phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spiro-bifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthryl, anthracenyl, fluoranthenyl, triphenylene, pyrenyl, 1,2-triphenylenyl, perylene, pentaphenanthrenyl, hexacenyl, pentacene, thienyl, furanyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothienyl, dibenzofuranyl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl, dibenzothiorol and pyridyl, each substituted with at least one selected from the group consisting of deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C1-C 20 Alkyl, C1-C 20 Alkoxy, phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spiro-bifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthryl, anthracenyl, fluoranthenyl, triphenylene, pyrenyl, 1,2-triphenylenyl, perylene, pentaphenanthrenyl, hexacenyl, pentacene, thienyl, furanyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothienyl, dibenzofuranyl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl, dibenzothiorol, pyridyl and -Si(Q) 31 )(Q 32 )(Q 33 ),

[0406] where Q 31 To Q 33 Can be independently selected from C1-C 10 Alkyl, C1-C 10 Alkoxy, phenyl, biphenyl, terphenyl and naphthyl.

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

[0408] In an embodiment, the fluorescent dopant may be selected from compounds FD1 to FD22:

[0409]

[0410]

[0411]

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

[0413]

[0414] [Electron transport zone]

[0415] The electron transport region may have i) a single-layer structure including (eg, consisting of) a single material, ii) a single-layer structure including a plurality of different materials, or iii) a multi-layer structure having a plurality of layers including a plurality of different materials.

[0416] The electron transport region may include at least one selected from a buffer layer, a hole blocking layer, an electron control layer, an electron transport layer, and an electron injection layer, but embodiments of the present disclosure are not limited thereto.

[0417] In an embodiment, the electron transport region may have an electron transport layer / electron injection layer structure, a hole blocking layer / electron transport layer / electron injection layer structure, an electron control layer / electron transport layer / electron injection layer structure, or a buffer layer / electron transport layer / electron injection layer structure, wherein the constituent layers of each structure are stacked sequentially from the emission layer. However, the embodiment of the structure of the electron transport region is not limited thereto.

[0418] The electron transport region (eg, a buffer layer, a hole blocking layer, an electron control layer, and / or an electron transport layer in the electron transport region) may include a metal-free compound containing at least one π-electron-deficient nitrogen-containing ring.

[0419] The term "π-electron-deficient nitrogen-containing ring" may refer to a C1-C 60 Heterocyclic group.

[0420] In an embodiment, the “π-electron-deficient nitrogen-containing ring” may be i) a 5- to 7-membered heteromonocyclic group having at least one *-N=*′ moiety, ii) a heteropolycyclic group in which two or more 5- to 7-membered heteromonocyclic groups, each having at least one *-N=*′ moiety, are fused to each other, or iii) a heteropolycyclic group in which at least one 5- to 7-membered heteromonocyclic group having at least one *-N=*′ moiety is fused to at least one C5-C 60 A carbocyclic group is a fused heteropolycyclic group.

[0421] Examples of the π-electron-deficient nitrogen-containing ring include an imidazole ring, a pyrazole ring, a thiazole ring, an isothiazole ring, an oxazole ring, an isoxazole ring, a pyridine ring, a pyrazine ring, a pyrimidine ring, a pyridazine ring, an indazole ring, a purine ring, a quinoline ring, an isoquinoline ring, a benzoquinoline ring, a phthalazine ring, a naphthidine ring, a quinoxaline ring, a quinazoline ring, a cinnoline ring, a phenanthridine ring, an acridine ring, a phenanthroline ring, a phenazine ring, a benzimidazole ring, a benzisothiazole ring, a benzoxazole ring, a benzisoxazole ring, a triazole ring, a tetrazole ring, an oxadiazole ring, a triazine ring, a thiadiazole ring, an imidazopyridine ring, an imidazopyrimidine ring, and an azacarbazole ring, but are not limited thereto.

[0422] In an embodiment, the electron transport region may include a compound represented by Formula 601:

[0423] Formula 601

[0424] [Ar 601 ] xe11 -[(L 601 ) xe1 -R 601 ] xe21 ,

[0425] Wherein, in formula 601,

[0426] Ar 601 Can be substituted or unsubstituted C5-C 60 Carbocyclic group or substituted or unsubstituted C1-C 60 Heterocyclic group, xe11 can be 1, 2 or 3,

[0427] L 601 Can be selected from substituted or unsubstituted C3-C 10 Cycloalkylene, substituted or unsubstituted C1-C 10 Heterocycloalkylene, substituted or unsubstituted C3-C 10 Cycloalkenylene, substituted or unsubstituted C1-C 10 Heterocycloalkenylene, substituted or unsubstituted C6-C 60 Arylene, substituted or unsubstituted C1-C 60 heteroarylene, a substituted or unsubstituted divalent non-aromatic fused polycyclic group and a substituted or unsubstituted divalent non-aromatic fused heteropolycyclic group,

[0428] xe1 may be an integer selected from 0 to 5,

[0429] R 601 Can be selected from substituted or unsubstituted C3-C 10 Cycloalkyl, substituted or unsubstituted C1-C 10 Heterocycloalkyl, substituted or unsubstituted C3-C 10 Cycloalkenyl, substituted or unsubstituted C1-C 10 Heterocycloalkenyl, substituted or unsubstituted C6-C 60 Aryl, substituted or unsubstituted C6-C 60 Aryloxy, substituted or unsubstituted C6-C 60 Arylthio, substituted or unsubstituted C1-C 60 heteroaryl, substituted or unsubstituted monovalent non-aromatic fused polycyclic group, substituted or unsubstituted monovalent non-aromatic fused heteropolycyclic group, -Si(Q 601 )(Q 602 )(Q 603 ),-C(=O)(Q 601 )、-S(=O)2(Q 601 ) and -P(=O)(Q 601 )(Q 602 ),

[0430] Q 601 To Q 603 Can be independently C1-C 10 Alkyl, C1-C 10 alkoxy, phenyl, biphenyl, terphenyl or naphthyl, and

[0431] xe21 may be an integer selected from 1 to 5.

[0432] In an embodiment, xe11 Ar 601 or xe21 R 601 At least one of the may include a π-electron-deficient nitrogen-containing ring.

[0433] In an embodiment, Ar in Formula 601 601 You can choose from:

[0434] Phenyl, naphthyl, fluorenyl, spiro-bifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthene, phenanthrenyl, anthracenyl, fluoranthenyl, triphenylene, pyrenyl, 1,2-triphenylenyl, naphthacene, pyrenyl, peryl, pentaphenanthrenyl, indenoanthryl, dibenzofuranyl, dibenzothiophenyl, carbazolyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, pyridinyl, pyrazinyl, pyrimidinyl, pyridaz ... oxazinyl, indazolyl, purinyl, quinolyl, isoquinolyl, benzoquinolyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, benzisothiazolyl, benzoxazolyl, benzisoxazolyl, triazolyl, tetrazolyl, oxadiazolyl, triazinyl, thiadiazolyl, imidazopyridinyl, imidazopyrimidinyl, and azacarbazolyl; and

[0435] phenyl, naphthyl, fluorenyl, spiro-bifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthene, phenanthrenyl, anthracenyl, fluoranthenyl, triphenylene, pyrenyl, 1,2-triphenylenyl, naphthacene, pyrenyl, peryl, pentaphenanthrenyl, indenoanthryl, dibenzofuranyl, dibenzothiophenyl, carbazolyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, pyridinyl, pyrazinyl, pyrimidinyl, pyridazinyl, indazolyl, purinyl, , quinolinyl, isoquinolinyl, benzoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, benzisothiazolyl, benzoxazolyl, benzisoxazolyl, triazolyl, tetrazolyl, oxadiazolyl, triazinyl, thiadiazolyl, imidazopyridinyl, imidazopyrimidinyl and azacarbazolyl: deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazinyl, hydrazone, C1-C 20 Alkyl, C1-C 20Alkoxy, phenyl, biphenyl, terphenyl, naphthyl, -Si(Q 31 )(Q 32 )(Q 33 )、-S(=O)2(Q 31 ) and -P(=O)(Q 31 )(Q 32 ),

[0436] where Q 31 To Q 33 Can be independently selected from C1-C 10 Alkyl, C1-C 10 Alkoxy, phenyl, biphenyl, terphenyl and naphthyl.

[0437] When xe11 in Formula 601 is 2 or greater, two or more Ar 601 can be connected to each other via a single bond.

[0438] In one or more embodiments, Ar in Formula 601 601 It may be an anthracene group.

[0439] In one or more embodiments, the compound represented by Formula 601 may be represented by Formula 601-1:

[0440]

[0441] Among them, in formula 601-1,

[0442] X 614 Can be N or C(R 614 ), X 615 Can be N or C(R 615 ), X 616 Can be N or C(R 616 ), and X 614 To X 616 At least one of may be N,

[0443] L 611 To L 613 Can be combined with L independently 601 Same as described,

[0444] xe611 to xe613 can each independently be the same as described in conjunction with xe1,

[0445] R 611 to R 613 Can be combined with R 601 Same as described, and

[0446] R 614 to R 616can be independently selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C1-C 20 Alkyl, C1-C 20 Alkoxy, phenyl, biphenyl, terphenyl and naphthyl.

[0447] In an embodiment, L in Formula 601 and Formula 601-1 601 and L 611 To L 613 Can be independently selected from:

[0448] Phenylene, naphthylene, fluorenylene, spiro-bifluorenylene, benzofluorenylene, dibenzofluorenylene, phenanthrenylene, anthracenylene, fluoranthenylene, triphenylene, pyrenylene, 1,2-triphenylenylene, perylene, pentaphenylene, hexaphenylene, pentacenylenylene, thienylene, furanylene, carbazolylene, indolylene, isoindolylene, benzofuranylene, benzothienylene, dibenzofuranylene, dibenzothienylene, benzocarbazolylene, dibenzocarbazolylene, dibenzothioxylene, pyridylene, imidazolylene, pyrazolylene, thienylene oxazolyl, isothiazolyl, oxazolyl, isoxazolyl, thiadiazolylene, oxadiazolyl, pyrazinyl, pyrimidinyl, pyridazinyl, triazinyl, quinolinyl, isoquinolinyl, benzoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolylene, benzisothiazolylene, benzoxazolylene, benzisoxazolylene, triazolyl, tetrazolylene, imidazopyridinyl, imidazopyrimidinyl, and azacarbazolylene; and

[0449] each substituted with at least one selected from the group consisting of phenylene, naphthylene, fluorenylene, spiro-bifluorenylene, benzofluorenylene, dibenzofluorenylene, phenanthrenylene, anthracenylene, fluoranthenylene, triphenylene, pyrenylene, 1,2-triphenylenylene, perylene, pentaphenylene, hexaphenylene, pentacenylenylene, thienylene, furanylene, carbazolylene, indolylene, isoindolylene, benzofuranylene, benzothienylene, dibenzofuranylene, dibenzothienylene, benzocarbazolylene, dibenzocarbazolylene, dibenzothioylene, pyridinylene, imidazolylene, pyrazolylene, thiazolylene, isothiazolylene, oxazolylene oxazolyl, isoxazolylene, thiadiazolylene, oxadiazolylene, pyrazinylene, pyrimidinylene, pyridazinylene, triazinylene, quinolinylene, isoquinolinylene, benzoquinolinylene, phthalazinylene, naphthyridinylene, quinoxalinylene, quinazolinylene, cinnolinylene, phenanthridinylene, acridinylene, phenanthrolinylene, phenazinylene, benzimidazolylene, benzisothiazolylene, benzoxazolylene, benzisoxazolylene, triazolylene, tetrazolylene, imidazopyridinylene, imidazopyrimidinylene and azacarbazolylene: deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazinyl, hydrazone, C1-C 20 Alkyl, C1-C 20 Alkoxy, phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spiro-bifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthryl, anthracenyl, fluoranthenyl, triphenylene, pyrenyl, 1,2-triphenylenyl, perylene, pentaphenanthrenyl, hexacenyl, pentacene, thienyl, furyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothienyl, dibenzofuranyl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl, dibenzothiorol, pyridyl, imidazolyl , pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, thiadiazolyl, oxadiazolyl, pyrazinyl, pyrimidinyl, pyridazinyl, triazinyl, quinolyl, isoquinolyl, benzoquinolyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, benzisothiazolyl, benzoxazolyl, benzisoxazolyl, triazolyl, tetrazolyl, imidazopyridinyl, imidazopyrimidinyl and azacarbazolyl,

[0450] However, the embodiments of the present disclosure are not limited thereto.

[0451] In one or more embodiments, xe1 and xe611 to xe613 in Formula 601 and Formula 601-1 may each independently be 0, 1, or 2.

[0452] In one or more embodiments, R in Formula 601 and Formula 601-1 601 and R 611 to R 613 Can be independently selected from:

[0453] Phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spiro-bifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthryl, anthracenyl, fluoranthenyl, triphenylene, pyrenyl, 1,2-triphenylenyl, perylene, pentaphenanthrenyl, hexacenyl, pentacene, thienyl, furanyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothienyl, dibenzofuranyl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl, dibenzothioroyl, pyridyl, imidazolyl, pyridyl oxazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, thiadiazolyl, oxadiazolyl, pyrazinyl, pyrimidinyl, pyridazinyl, triazinyl, quinolinyl, isoquinolinyl, benzoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, benzisothiazolyl, benzoxazolyl, benzisoxazolyl, triazolyl, tetrazolyl, imidazopyridinyl, imidazopyrimidinyl, and azacarbazolyl;

[0454] phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spiro-bifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthryl, anthracenyl, fluoranthenyl, triphenylene, pyrenyl, 1,2-triphenylenyl, perylene, pentaphenanthrenyl, hexacenyl, pentacene, thienyl, furanyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothienyl, dibenzofuranyl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl, dibenzothiorol, pyridyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl , oxazolyl, isoxazolyl, thiadiazolyl, oxadiazolyl, pyrazinyl, pyrimidinyl, pyridazinyl, triazinyl, quinolyl, isoquinolyl, benzoquinolyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, benzisothiazolyl, benzoxazolyl, benzisoxazolyl, triazolyl, tetrazolyl, imidazopyridinyl, imidazopyrimidinyl and azacarbazolyl: deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazinyl, hydrazone, C1-C 20 Alkyl, C1-C 20Alkoxy, phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spiro-bifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthryl, anthracenyl, fluoranthenyl, triphenylene, pyrenyl, 1,2-triphenylenyl, perylene, pentaphenanthrenyl, hexacenyl, pentacene, thienyl, furyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothienyl, dibenzofuranyl, dibenzothienyl, benzocarbazolyl, dibenzocarbazolyl, dibenzothiorol, pyridyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, thiadiazolyl, oxadiazolyl, pyrazinyl, pyrimidinyl, pyridazinyl, triazinyl, quinolyl, isoquinolyl, benzoquinolyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, benzisothiazolyl, benzoxazolyl, benzisoxazolyl, triazolyl, tetrazolyl, imidazopyridinyl, imidazopyrimidinyl, and azacarbazolyl; and

[0455] -S(=O)2(Q 601 ) and -P(=O)(Q 601 )(Q 602 ),

[0456] where Q 601 and Q 602 Each may be independently the same as above.

[0457] The electron transport region may include at least one compound selected from compounds ET1 to ET36, but embodiments of the present disclosure are not limited thereto:

[0458]

[0459]

[0460]

[0461]

[0462] In one or more embodiments, the electron transport region may include at least one compound selected from 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline (BCP), 4,7-diphenyl-1,10-phenanthroline (BPhen), Alq3, BAlq, 3-(biphenyl-4-yl)-5-(4-tert-butylphenyl)-4-phenyl-4H-1,2,4-triazole (TAZ) and NTAZ.

[0463]

[0464] The thickness of the buffer layer, hole blocking layer and electron control layer can each independently be about to about For example, about to about When the thicknesses of the buffer layer, the hole blocking layer, and the electron control layer are within these ranges, excellent hole blocking characteristics and / or excellent electron control characteristics may be obtained without a significant increase in driving voltage.

[0465] The electron transport layer may have a to about For example, about to about about to about When the thickness of the electron transport layer is within the above range, the electron transport layer may have satisfactory electron transport characteristics without a significant increase in driving voltage.

[0466] In addition to the materials described above, the electron transport region (eg, the electron transport layer in the electron transport region) may further include a metal-containing material.

[0467] The metal-containing material may include at least one selected from an alkali metal complex and an alkaline earth metal complex. The alkali metal complex may include a metal ion selected from Li ions, Na ions, K ions, Rb ions, and Cs ions, and the alkaline earth metal complex may include a metal ion selected from Be ions, Mg ions, Ca ions, Sr ions, and Ba ions. The ligand coordinated to the metal ion of the alkali metal complex or the alkaline earth metal complex may be selected from hydroxyquinoline, hydroxyisoquinoline, hydroxybenzoquinoline, hydroxyacridine, hydroxyphenanthridine, hydroxyphenyloxazole, hydroxyphenylthiazole, hydroxyphenyloxadiazole, hydroxyphenylthiadiazole, hydroxyphenylpyridine, hydroxyphenylbenzimidazole, hydroxyphenylbenzothiazole, bipyridine, phenanthroline, and cyclopentadiene, but embodiments of the present disclosure are not limited thereto.

[0468] In an embodiment, the metal-containing material may include a Li complex. The Li complex may include, for example, compound ET-D1 (lithium 8-hydroxyquinoline, LiQ) or ET-D2:

[0469]

[0470] The electron transport region may include an electron injection layer that facilitates injection of electrons from the second electrode 190. The electron injection layer may directly contact the second electrode 190.

[0471] The electron injection layer may have i) a single-layer structure including (eg, consisting of) a single material, ii) a single-layer structure including a plurality of different materials, or iii) a multi-layer structure having a plurality of layers including a plurality of different materials.

[0472] The electron injection layer may include an alkali metal, an alkaline earth metal, a rare earth metal, an alkali metal compound, an alkaline earth metal compound, a rare earth metal compound, an alkali metal complex, an alkaline earth metal complex, a rare earth metal complex, or any combination thereof.

[0473] The alkali metal may be selected from Li, Na, K, Rb, and Cs. In an embodiment, the alkali metal may be Li, Na, or Cs. In one or more embodiments, the alkali metal may be Li or Cs, but the embodiments of the present disclosure are not limited thereto.

[0474] The alkaline earth metal may be selected from Mg, Ca, Sr, and Ba.

[0475] The rare earth metal may be selected from Sc, Y, Ce, Tb, Yb, and Gd.

[0476] The alkali metal compounds, alkaline earth metal compounds, and rare earth metal compounds may be selected from oxides and halides (e.g., fluorides, chlorides, bromides, or iodides) of alkali metals, alkaline earth metals, and rare earth metals.

[0477] The alkali metal compounds may be selected from alkali metal oxides (such as Li2O, Cs2O, and / or K2O), and alkali metal halides (such as LiF, NaF, CsF, KF, LiI, NaI, CsI, KI, and / or RbI). In an embodiment, the alkali metal compounds may be selected from LiF, Li2O, NaF, LiI, NaI, CsI, and KI, but the embodiments of the present disclosure are not limited thereto.

[0478] The alkaline earth metal compounds may be selected from alkaline earth metal oxides (such as BaO, SrO, CaO, Ba x Sr 1-x O(0 < x < 1) and / or Ba x Ca 1-x O(0 < x < 1)). In an embodiment, the alkaline earth metal compounds may be selected from BaO, SrO, and CaO, but the embodiments of the present disclosure are not limited thereto.

[0479] The rare earth metal compounds may be selected from YbF3, ScF3, Sc2O3, Y2O3, Ce2O3, GdF3, and TbF3. In an embodiment, the rare earth metal compounds may be selected from YbF3, ScF3, TbF3, YbI3, ScI3, and TbI3, but the embodiments of the present disclosure are not limited thereto.

[0480] The alkali metal complex, alkaline earth metal complex and rare earth metal complex may include ions of alkali metal, alkaline earth metal and rare earth metal as described above, respectively, and the ligand coordinated with the metal ion of the alkali metal complex, alkaline earth metal complex or rare earth metal complex may be selected from hydroxyquinoline, hydroxyisoquinoline, hydroxybenzoquinoline, hydroxyacridine, hydroxyphenanthridine, hydroxyphenyloxazole, hydroxyphenylthiazole, hydroxyphenyloxadiazole, hydroxyphenylthiadiazole, hydroxyphenylpyridine, hydroxyphenylbenzimidazole, hydroxyphenylbenzothiazole, bipyridine, phenanthroline and cyclopentadiene, but the embodiments of the present disclosure are not limited thereto.

[0481] The electron injection layer may include (e.g., be composed of) an alkali metal, an alkaline earth metal, a rare earth metal, an alkali metal compound, an alkaline earth metal compound, a rare earth metal compound, an alkali metal complex, an alkaline earth metal complex, a rare earth metal complex, or any combination thereof as described above. In one or more embodiments, the electron injection layer may further include an organic material. When the electron injection layer further includes an organic material, the alkali metal, alkaline earth metal, rare earth metal, alkali metal compound, alkaline earth metal compound, rare earth metal compound, alkali metal complex, alkaline earth metal complex, rare earth metal complex, or a combination thereof may be substantially uniformly or non-uniformly dispersed in a matrix including an organic material.

[0482] The thickness of the electron injection layer may be about to about For example, about to about When the thickness of the electron injection layer is within the above range, the electron injection layer may have satisfactory electron injection characteristics without a significant increase in driving voltage.

[0483] [Second electrode 190]

[0484] The second electrode 190 may be a cathode, which is an electron injection electrode, and in this regard, a material for forming the second electrode 190 may be selected from metals, alloys, conductive compounds, and combinations thereof, each having a relatively low work function.

[0485] The second electrode 190 may include at least one selected from lithium (Li), silver (Ag), magnesium (Mg), aluminum (Al), aluminum-lithium (Al-Li), calcium (Ca), ytterbium (Yb), magnesium-indium (Mg-In), magnesium-silver (Mg-Ag), silver-ytterbium (Ag-Yb), ITO, and IZO, but the embodiments of the present disclosure are not limited thereto. The second electrode 190 may be a transmissive electrode, a semi-transmissive electrode, or a reflective electrode.

[0486] The second electrode 190 may have a single-layer structure or a multi-layer structure including two or more layers.

[0487] [Capping layer]

[0488] The first capping layer may be located outside the first electrode 110, and / or the second capping layer may be located outside the second electrode 190. For example, the light-emitting device 10, 20, or 30 may have a structure in which the first capping layer, the first electrode 110, the organic layer 150, the second electrode 190 are sequentially stacked in the stated order, a structure in which the first electrode 110, the organic layer 150, the second electrode 190, and the second capping layer are sequentially stacked in the stated order, or a structure in which the first capping layer, the first electrode 110, the organic layer 150, the second electrode 190, and the second capping layer are sequentially stacked in the stated order.

[0489] In the organic layer 150 of the organic light-emitting device 10, 20, or 30, light generated in the emission layer can pass through the first electrode 110 and the first capping layer toward the outside, wherein the first electrode 110 can be a semi-transmissive electrode or a transmissive electrode. In the organic layer 150 of the organic light-emitting device 10, 20, or 30, light generated in the emission layer can pass through the second electrode 190 and the second capping layer toward the outside, wherein the second electrode 190 can be a semi-transmissive electrode or a transmissive electrode.

[0490] According to the principle of constructive interference, the first capping layer and the second capping layer can increase the external luminous efficiency of the device.

[0491] The first capping layer and the second capping layer may protect the organic light-emitting device 10 , 20 , or 30 , and further, may allow light generated by the organic light-emitting device 10 , 20 , or 30 to be efficiently emitted.

[0492] The first capping layer and the second capping layer may each independently have a refractive index of 1.6 or greater with respect to a wavelength of about 589 nm.

[0493] The first capping layer and the second capping layer may each independently be an organic capping layer including an organic material, an inorganic capping layer including an inorganic material, or a composite capping layer including an organic material and an inorganic material.

[0494] At least one selected from the first capping layer and the second capping layer may each independently include a carbocyclic compound, a heterocyclic compound, an amino-containing compound, a porphyrin derivative, a phthalocyanine derivative, a naphthalocyanine derivative, an alkali metal complex, an alkaline earth metal complex, or a combination thereof. The carbocyclic compound, the heterocyclic compound, and the amino-containing compound may optionally be substituted with a substituent containing O, N, S, Se, Si, F, Cl, Br, I, or any combination thereof. In an embodiment, at least one of the first capping layer and the second capping layer may each independently include an amino-containing compound.

[0495] In an embodiment, at least one of the first capping layer and the second capping layer may each independently include the compound represented by Formula 201, the compound represented by Formula 202, or any combination thereof.

[0496] In one or more embodiments, at least one of the first capping layer and the second capping layer may each independently include a compound selected from compounds HT28 to HT33, compounds CP1 to CP5, or any combination thereof, but embodiments of the present disclosure are not limited thereto:

[0497]

[0498] [Electronic equipment]

[0499] Organic light-emitting devices may be included in various electronic devices. In an embodiment, the electronic device including the organic light-emitting device may be a lighting device or an authentication device, etc.

[0500] In addition to the organic light-emitting device, the electronic device (e.g., a light-emitting device) may further include a color filter, a color conversion layer, or a color filter and a color conversion layer. The color filter and / or the color conversion layer may be located in at least one propagation direction of the light emitted from the organic light-emitting device. In an embodiment, the light emitted from the organic light-emitting device may be blue light or white light, but the embodiments of the present disclosure are not limited thereto. The organic light-emitting device may be the same as described above.

[0501] The electronic device may include a first substrate, the first substrate may include a plurality of sub-pixel regions, and the color filter or the color conversion layer may include a plurality of color filter regions or color conversion layer regions respectively corresponding to the plurality of sub-pixel regions.

[0502] A pixel defining film may be located between the plurality of sub-pixel regions to define each of the sub-pixel regions.

[0503] The color filter or color conversion layer may further include a light-blocking pattern between the plurality of color filter regions or between the plurality of color conversion layer regions.

[0504] The color filter region or the color conversion layer region may include a first region that emits a first color light, a second region that emits a second color light, and / or a third region that emits a third color light, and the first color light, the second color light, and / or the third color light may have different maximum emission wavelengths. In an embodiment, the first color light may be red light, the second color light may be green light, and the third color light may be blue light, but the embodiments of the present disclosure are not limited thereto. In an embodiment, multiple color filter regions or multiple color conversion layer regions may each include quantum dots, but the embodiments of the present disclosure are not limited thereto. For example, the first region may include red quantum dots, the second region may include green quantum dots, and the third region may not include quantum dots. The first region, the second region, and / or the third region may each include a scatterer, but the embodiments of the present disclosure are not limited thereto.

[0505] In an embodiment, the organic light-emitting device may be configured to emit a first light, the first region may absorb the first light to emit a first first color light, the second region may absorb the first light to emit a second first color light, and the third region may absorb the first light to emit a third first color light. In this regard, the first first color light, the second first color light, and the third first color light may have different maximum emission wavelengths. For example, the first light may be blue light, the first first color light may be red light, the second first color light may be green light, and the third first color light may be blue light, but embodiments of the present disclosure are not limited thereto.

[0506] In addition to the organic light-emitting device described above, the electronic device may further include a thin film transistor. The thin film transistor may include a source electrode, a drain electrode, and an active layer, wherein any one of the source electrode and the drain electrode may be electrically connected to any one of the first electrode and the second electrode of the organic light-emitting device.

[0507] The thin film transistor may further include a gate electrode and / or a gate insulating layer, etc.

[0508] The active layer may include crystalline silicon, amorphous silicon, an organic semiconductor, and / or an oxide semiconductor, etc., but the embodiments of the present disclosure are not limited thereto.

[0509] The electronic device may further include a sealing portion for sealing the organic light-emitting device. The sealing portion may be placed between the color filter and the organic light-emitting device. The sealing portion allows light from the organic light-emitting device to be extracted to the outside while (for example, simultaneously) preventing or reducing the penetration of ambient air and moisture into the organic light-emitting device. The sealing portion may be a sealing substrate including a transparent glass substrate and / or a plastic substrate. The sealing portion may be a thin film encapsulation layer including at least one organic layer and / or at least one inorganic layer. When the sealing portion is a thin film encapsulation layer, the electronic device may be flexible.

[0510] In addition to the color filter and / or color conversion layer, various functional layers may be further positioned on the sealing portion as needed depending on the intended use of the electronic device. These functional layers may include a touchscreen layer and / or a polarizing layer. The touchscreen layer may be a pressure-sensitive touchscreen layer, a capacitive touchscreen layer, or an infrared touchscreen layer. The authentication device may be, for example, a biometric authentication device for authenticating an individual using biometric information from a biometric body (e.g., a fingertip and / or pupil).

[0511] In addition to the organic light emitting device, the authentication apparatus may further include a biometric information collector.

[0512] The electronic device may be applicable to various appropriate displays, light sources, lighting, personal computers (e.g., mobile personal computers), mobile phones, digital cameras, electronic notebooks, electronic dictionaries, electronic game consoles, medical tools (e.g., electronic thermometers, blood pressure monitors, blood glucose meters, pulse measurement devices, pulse wave measurement devices, electrocardiogram displays, ultrasound diagnostic devices or endoscope displays), fish finders, various measuring tools, instruments (e.g., instruments for vehicles, aircraft and ships) and / or projectors, etc., but the embodiments of the present disclosure are not limited thereto.

[0513] [ Figure 4 Description]

[0514] Figure 4 1 is a schematic cross-sectional view of an electronic device 100 according to an embodiment. The electronic device 100 includes a substrate 210 , an organic light-emitting device 220 on the substrate 210 , a capping layer 230 on the organic light-emitting device 220 , and a color conversion layer 240 on the capping layer 230 .

[0515] The substrate 210 , the organic light-emitting device 220 , and the capping layer 230 may each be understood by referring to the above description.

[0516] Color conversion layer 240 includes a first color conversion layer region 241 , a second color conversion layer region 242 , a third color conversion layer region 243 , and a light-blocking pattern 250 located between adjacent regions of the first, second, and third color conversion layer regions 241 , 242 , and 243 .

[0517] The first, second, and third color conversion layer regions 241, 242, and 243 may each include quantum dots, but embodiments of the present disclosure are not limited thereto. In one embodiment, the first color conversion layer region 241 includes red quantum dots, the second color conversion layer region 242 includes green quantum dots, and the third color conversion layer region 243 may not include quantum dots, but embodiments of the present disclosure are not limited thereto.

[0518] [Preparation method]

[0519] Each layer included in the charge generation layer, each layer included in the hole transport region, each layer included in the emission layer, and each layer included in the electron transport region can be formed in a set or predetermined area by vacuum deposition, spin coating, casting, Langmuir-Brockett (LB) method, inkjet printing, laser printing, and / or laser induced thermal imaging (LITI).

[0520] When the layer constituting the charge generation layer, the layer constituting the hole transport region, the layer constituting the emission layer and / or the layer constituting the electron transport region are formed by vacuum deposition, the deposition temperature may be from about 100° C. to about 500° C., from about 10 -8 About 10 -3 Torr vacuum and about to about Deposition was carried out at a deposition rate of .

[0521] [General Definition of Substituents]

[0522] As used herein, the term "C1-C 60 "Alkyl" refers to a straight or branched chain aliphatic saturated hydrocarbon monovalent group having 1 to 60 carbon atoms, such as C1-C 10 The term "C1-C1-alkyl" as used herein includes, but is not limited to, methyl, ethyl, propyl, isobutyl, sec-butyl, tert-butyl, pentyl, isopentyl, and hexyl. 60 "Alkylene" refers to a C1-C 60 Alkyl groups have essentially the same structure as divalent groups, such as C1-C 20 Alkylene.

[0523] As used herein, the term "C2-C 60 "Alkenyl" refers to a C2-C 60 The term "C2-C4" as used herein refers to a hydrocarbon group having at least one carbon-carbon double bond in the middle and / or at the terminal of the alkyl group, and non-limiting examples thereof include ethenyl, propenyl, and butenyl. 60 "Alkenylene" refers to a C2-C 60 Alkenyl groups have divalent groups with substantially the same structure, such as C2-C 20 Alkenylene.

[0524] As used herein, the term "C2-C 60 "Alkynyl" refers to a C2-C 60 The term "C2-C4" as used herein refers to a hydrocarbon group having at least one carbon-carbon triple bond in the middle and / or at the terminal of the alkyl group, and non-limiting examples thereof include ethynyl and propynyl. 60 "Alkynylidene" refers to a C2-C 60 Alkynyl groups have substantially the same structure as divalent groups.

[0525] As used herein, the term "C1-C 60 "Alkoxy" refers to a 101 (where A 101 C1-C 60 Alkyl) represented by a monovalent group, such as C1-C 10Alkoxy, and non-limiting examples thereof include methoxy, ethoxy, and isopropoxy.

[0526] As used herein, the term "C3-C 10 "Cycloalkyl" refers to a monovalent saturated hydrocarbon monocyclic group having 3 to 10 carbon atoms, and non-limiting examples thereof include cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, and cycloheptyl. As used herein, the term "C3-C 10 "Cycloalkylene" refers to a C3-C 10 The cycloalkyl group has a divalent group having substantially the same structure.

[0527] As used herein, the term "C1-C 10 The term "heterocycloalkyl" as used herein refers to a monovalent monocyclic group having at least one heteroatom selected from N, O, Si, P and S as a ring atom and 1 to 10 carbon atoms, and non-limiting examples thereof include 1,2,3,4-oxatriazolidinyl, tetrahydrofuranyl and tetrahydrothienyl. 10 "Heterocycloalkylene" refers to a C1-C 10 The heterocycloalkyl group has a divalent group having substantially the same structure.

[0528] As used herein, the term "C3-C 10 "Cycloalkenyl" refers to a monovalent monocyclic group having 3 to 10 carbon atoms, at least one carbon-carbon double bond in its ring and being non-aromatic, and non-limiting examples thereof include cyclopentenyl, cyclohexenyl and cycloheptenyl. The term "C3-C4-cycloalkenyl" as used herein refers to a monovalent monocyclic group having 3 to 10 carbon atoms, at least one carbon-carbon double bond in its ring and being non-aromatic, and non-limiting examples thereof include cyclopentenyl, cyclohexenyl and cycloheptenyl. 10 "Cycloalkenylene" refers to a C3-C 10 The cycloalkenyl group is a divalent group having substantially the same structure.

[0529] As used herein, the term "C1-C 10 "Heterocycloalkenyl" refers to a monovalent monocyclic group having at least one heteroatom selected from N, O, Si, P and S as a ring atom, 1 to 10 carbon atoms and at least one double bond in its ring. 10 Non-limiting examples of heterocycloalkenyl groups include 4,5-dihydro-1,2,3,4-oxatriazolyl, 2,3-dihydrofuranyl, and 2,3-dihydrothienyl. As used herein, the term "C1-C 10 "Heterocycloalkenylene" refers to a C1-C 10 The heterocycloalkenyl group has a divalent group having substantially the same structure.

[0530] As used herein, the term "C6-C 60 "Aryl" refers to a monovalent group having a carbocyclic aromatic system containing 6 to 60 carbon atoms, and the term "C6-C 60"Arylene" refers to a divalent group having a carbocyclic aromatic system containing 6 to 60 carbon atoms. 60 Non-limiting examples of aryl groups include phenyl, naphthyl, anthracenyl, phenanthrenyl, pyrenyl, and 1,2-triphenylenyl. 60 Aryl and C6-C 60 When the arylene groups each include two or more rings, the two or more rings may be fused to each other.

[0531] As used herein, the term "C1-C 60 "Heteroaryl" refers to a monovalent group having a heterocyclic aromatic system having at least one heteroatom selected from N, O, Si, P and S as a ring atom in addition to 1 to 60 carbon atoms. As used herein, the term "C1-C 60 "Heteroarylene" refers to a divalent group having a heterocyclic aromatic system which, in addition to 1 to 60 carbon atoms, has at least one heteroatom selected from N, O, Si, P and S as a ring atom. 60 Non-limiting examples of heteroaryl groups include pyridyl, pyrimidinyl, pyrazinyl, pyridazinyl, triazinyl, quinolinyl, and isoquinolinyl. 60 Heteroaryl and C1-C 60 When the heteroarylene groups each include two or more rings, the two or more rings may be fused to each other.

[0532] As used herein, the term "C6-C 60 "Aryloxy" refers to -OA 102 (where A 102 C6-C 60 aryl), and as used herein, the term "C6-C 60 "Arylthio" refers to -SA 103 (where A 103 C6-C 60 aryl).

[0533] As used herein, the term "monovalent non-aromatic fused polycyclic group" refers to a monovalent group having two or more rings fused to each other, having only carbon atoms (e.g., 8 to 60 carbon atoms) as ring atoms, and having no aromaticity in its molecular structure (when considered as a whole). Detailed examples of monovalent non-aromatic fused polycyclic groups are fluorenyl and adamantyl. As used herein, the term "divalent non-aromatic fused polycyclic group" refers to a divalent group having the same structure as the monovalent non-aromatic fused polycyclic group.

[0534] As used herein, the term "monovalent non-aromatic fused heteropolycyclic group" refers to a monovalent group having two or more rings fused to each other, having at least one heteroatom selected from N, O, Si, P, and S as a ring-forming atom in addition to carbon atoms (e.g., 1 to 60 carbon atoms), and having no aromaticity in its molecular structure (when considered as a whole). An example of a monovalent non-aromatic fused heteropolycyclic group is an azaadamantyl group. As used herein, the term "divalent non-aromatic fused heteropolycyclic group" refers to a divalent group having the same structure as a monovalent non-aromatic fused heteropolycyclic group.

[0535] As used herein, the term "C5-C 60 A "carbocyclic group" refers to a monocyclic or polycyclic group consisting of 5 to 60 carbon atoms and including only carbon atoms as ring atoms, for example, C5-C 30 Carbocyclic group. C5-C 60 The carbocyclic group may be an aromatic carbocyclic group or a non-aromatic carbocyclic group. 60 The carbocyclic group can be a ring (such as benzene), a monovalent group (such as phenyl) or a divalent group (such as phenylene). In one or more embodiments, depending on the attachment to the C5-C 60 The number of substituents in a carbocyclic group, C5-C 60 The carbocyclic group may be a trivalent group or a tetravalent group.

[0536] As used herein, the term "C1-C 60 "Heterocyclic group" refers to a C5-C 60 The carbocyclic group has a group having substantially the same structure except that, in addition to carbon atoms (the number of carbon atoms may be in the range of 1 to 60), at least one heteroatom selected from N, O, Si, P and S is used as a ring-forming atom, for example, C1-C 30 Heterocyclic group.

[0537] In this specification, substituted C5-C 60 Carbocyclic groups, substituted C1-C 60 Heterocyclic groups, substituted C3-C 10 Cycloalkylene, substituted C1-C 10 Heterocycloalkylene, substituted C3-C 10 Cycloalkenylene, substituted C1-C 10 Heterocycloalkenylene, substituted C6-C 60 Arylene, substituted C1-C 60 Heteroarylene, substituted divalent non-aromatic fused polycyclic group, substituted divalent non-aromatic fused heteropolycyclic group, substituted C1-C 60 Alkyl, substituted C2-C 60 Alkenyl, substituted C2-C 60 Alkynyl, substituted C1-C60 Alkoxy, substituted C3-C 10 Cycloalkyl, substituted C1-C 10 Heterocycloalkyl, substituted C3-C 10 Cycloalkenyl, substituted C1-C 10 Heterocycloalkenyl, substituted C6-C 60 Aryl, substituted C6-C 60 Aryloxy, substituted C6-C 60 Arylthio, substituted C1-C 60 At least one substituent of the heteroaryl group, the substituted monovalent non-aromatic fused polycyclic group, and the substituted monovalent non-aromatic fused heteropolycyclic group may be selected from:

[0538] Deuterium (-D), -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl and C1-C 60 alkoxy;

[0539] Each of the following C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl and C1-C 60 Alkoxy: deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C3-C 10 Cycloalkyl, C1-C 10 Heterocycloalkyl, C3-C 10 Cycloalkenyl, C1-C 10 Heterocycloalkenyl, C6-C 60 Aryl, C6-C 60 Aryloxy, C6-C 60 Arylthio, C1-C 60 Heteroaryl, monovalent non-aromatic fused polycyclic group, monovalent non-aromatic fused heteropolycyclic group, -Si(Q 11 )(Q 12 )(Q 13 )、-N(Q 11 )(Q 12 )、-B(Q 11 )(Q 12 ),-C(=O)(Q 11 )、-S(=O)2(Q 11 ) and -P(=O)(Q 11 )(Q 12 );

[0540] C3-C 10Cycloalkyl, C1-C 10 Heterocycloalkyl, C3-C 10 Cycloalkenyl, C1-C 10 Heterocycloalkenyl, C6-C 60 Aryl, C6-C 60 Aryloxy, C6-C 60 Arylthio, C1-C 60 heteroaryl groups, monovalent non-aromatic fused polycyclic groups, and monovalent non-aromatic fused heteropolycyclic groups;

[0541] Each of the C3-C 10 Cycloalkyl, C1-C 10 Heterocycloalkyl, C3-C 10 Cycloalkenyl, C1-C 10 Heterocycloalkenyl, C6-C 60 Aryl, C6-C 60 Aryloxy, C6-C 60 Arylthio, C1-C 60 Heteroaryl, monovalent non-aromatic fused polycyclic groups and monovalent non-aromatic fused heteropolycyclic groups: deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl, C1-C 60 Alkoxy, C3-C 10 Cycloalkyl, C1-C 10 Heterocycloalkyl, C3-C 10 Cycloalkenyl, C1-C 10 Heterocycloalkenyl, C6-C 60 Aryl, C6-C 60 Aryloxy, C6-C 60 Arylthio, C1-C 60 Heteroaryl, monovalent non-aromatic fused polycyclic group, monovalent non-aromatic fused heteropolycyclic group, -Si(Q 21 )(Q 22 )(Q 23 )、-N(Q 21 )(Q 22 )、-B(Q 21 )(Q 22 ),-C(=O)(Q 21 )、-S(=O)2(Q 21 ) and -P(=O)(Q 21 )(Q 22 );as well as

[0542] -Si(Q 31 )(Q 32 )(Q33 )、-N(Q 31 )(Q 32 )、-B(Q 31 )(Q 32 ),-C(=O)(Q 31 )、-S(=O)2(Q 31 ) and -P(=O)(Q 31 )(Q 32 ),

[0543] where Q 11 To Q 13 , Q 21 To Q 23 and Q 31 To Q 33 can be independently selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl, C1-C 60 Alkoxy, C3-C 10 Cycloalkyl, C1-C 10 Heterocycloalkyl, C3-C 10 Cycloalkenyl, C1-C 10 Heterocycloalkenyl, C6-C 60 Aryl, C1-C 60 heteroaryl group, a monovalent non-aromatic fused polycyclic group, a monovalent non-aromatic fused heteropolycyclic group, a biphenyl group, and a terphenyl group.

[0544] As used herein, the term "Ph" refers to a phenyl group, as used herein, the term "Me" refers to a methyl group, as used herein, the term "Et" refers to an ethyl group, as used herein, the term "tert-Bu" or "Bu" refers to an ethyl group. t ” refers to a tert-butyl group, and the term “OMe” as used herein refers to a methoxy group.

[0545] As used herein, the term "biphenyl" refers to a "phenyl group substituted by a phenyl group". In other words, the "biphenyl" may be a C6-C 60 A phenyl group substituted with an aryl group as a substituent.

[0546] As used herein, the term "terphenyl" refers to a "phenyl group substituted by a biphenyl group". In other words, a "terphenyl" is a group having a C6-C 60 Aryl-substituted C6-C 60 A phenyl group substituted with an aryl group as a substituent.

[0547] Unless otherwise defined, * and *' as used herein each refer to a binding site to an adjacent atom in the corresponding formula.

[0548] Hereinafter, a light emitting device according to an embodiment will be described in more detail with reference to examples.

[0549] [Example]

[0550] Example 1

[0551] As a substrate and anode, there is 15Ω / cm 2 An ITO glass substrate (manufactured by Corning) was cut into a size of 50 mm × 50 mm × 0.7 mm, ultrasonicated for 5 minutes using isopropyl alcohol and pure water, irradiated with ultraviolet (UV) light for 30 minutes, and exposed to ozone for cleaning. The resulting glass substrate was then loaded onto a vacuum deposition apparatus.

[0552] HT3 and F4-TCNQ were co-deposited on the ITO anode at a weight ratio of 9:1 to form a The hole injection layer of HT3 Deposited on the hole injection layer to form a hole transport layer.

[0553] HT18 Deposited on the hole transport layer to form a hole transport auxiliary layer, BH8 and BD1 were co-deposited at a weight ratio of 95:5 to form a layer with a thickness of The transmitter layer, then, ET28 Depositing thereon to form an upper auxiliary layer, thereby completing the manufacture of the first light-emitting unit.

[0554] ET1 and LiQ The electron transport layer was co-deposited on the first light emitting unit at a weight ratio of 9:1.

[0555] Bphen and Li were co-deposited on the electron transport layer at a weight ratio of 9:1 to form a layer with a thickness of n-type charge generation layer.

[0556] HT3 and Bi2Te3 were co-deposited on the n-type charge generation layer at a weight ratio of 9:1 to form a layer with a thickness of The first doping layer is co-deposited with HT3 and KI at a weight ratio of 9:1 on the first doping layer to form a layer with a thickness of As a result, a first charge generation layer is formed in which an n-type charge generation layer and a p-type charge generation layer are stacked.

[0557] The second light emitting unit was formed on the first charge generation layer in substantially the same manner as that used to form the first light emitting unit, and ET1 and LiQ were placed on the first charge generation layer. The electron transport layer was co-deposited on the second light emitting unit at a weight ratio of 9:1.

[0558] The second charge generation layer is formed on the electron transport layer in substantially the same manner as that used to form the first charge generation layer.

[0559] The third light emitting unit is formed on the second charge generation layer in substantially the same manner as used to form the first light emitting unit.

[0560] On the third light emitting unit, ET1 and LiQ were co-deposited at a weight ratio of 9:1 to form a layer with a thickness of electron transport layer, and Yb An electron injection layer is deposited thereon to completely form the electron transport region.

[0561] AgMg deposited on the electron transport region to form a cathode, and HT28 The capping layer is deposited on the cathode to complete the manufacture of the organic light-emitting device.

[0562]

[0563] Example 2

[0564] An organic light-emitting device was manufactured in the same manner as in Example 1, except that H-1 and D-1 were used instead of BH8 and BD1 in forming the emission layer:

[0565]

[0566] Comparative Example 1

[0567] An organic light-emitting device was manufactured in substantially the same manner as in Example 2, except that in forming the p-type charge generation layer, the second doping layer was not formed, and the first doping layer was formed using HT3 and HAT-CN and its thickness was adjusted to

[0568] Comparative Example 2

[0569] An organic light-emitting device was manufactured in substantially the same manner as in Example 1, except that in forming the p-type charge generation layer, the second doping layer was not formed, and the thickness of the first doping layer was adjusted to

[0570] Comparative Example 3

[0571] An organic light-emitting device was manufactured in substantially the same manner as in Example 1, except that in forming the p-type charge generation layer, the first doping layer was not formed, and the thickness of the second doping layer was adjusted to

[0572] Comparative Example 4

[0573] An organic light-emitting device was manufactured in substantially the same manner as in Example 2, except that only HAT-CN was used in forming the first doping layer, and HAT-CN and NPD (NPD amount: 10 wt %) were used in forming the second doping layer.

[0574] Comparative Example 5

[0575] An organic light-emitting device was manufactured in substantially the same manner as in Example 1, except that only KI was used in forming the second doping layer.

[0576] Evaluation Example 1

[0577] At 20 mA / cm 2 The efficiency (Cd / A) and lifespan (hr) of each of the organic light-emitting devices manufactured according to Examples 1 and 2 and Comparative Examples 1 to 5 were measured at a current density of , and the results obtained therefrom are shown in Table 1 as a percentage basis (%) relative to Comparative Example 1.

[0578] Table 1

[0579]

[0580] Referring to Table 1, the organic light-emitting devices of Examples 1 and 2 have higher or greater efficiency and lifespan than the organic light-emitting devices of Comparative Examples 1 to 5.

[0581] The organic light-emitting device according to an embodiment of the present disclosure may have high efficiency and / or a long lifespan.

[0582] As used herein, the terms "substantially," "about," and similar terms are used as terms of approximation, not terms of degree, and are intended to account for the inherent variations in measurements or calculations that those skilled in the art would recognize.

[0583] Any numerical range listed herein is intended to include all subranges of the same numerical precision included in the listed range. For example, the range of "1.0 to 10.0" is intended to include all subranges between the listed minimum value 1.0 and the listed maximum value 10.0 (and including the end value), that is, all subranges with a minimum value equal to or greater than 1.0 and a maximum value equal to or less than 10.0, such as, for example, 2.4 to 7.6. Any maximum numerical limit listed herein is intended to include all lower numerical limits included therein, and any minimum numerical limit listed in this specification is intended to include all higher numerical limits included therein. Therefore, the applicant reserves the right to amend this specification (including claims) to explicitly list any subranges included in the range explicitly listed herein.

[0584] It should be understood that the embodiments described herein should be considered only as descriptive and not for purposes of limitation. The description of features or aspects in each embodiment should generally be considered as applicable to other similar features or aspects in other embodiments. Although one or more embodiments have been described with reference to the accompanying drawings, it will be understood by those skilled in the art that various changes in form and details may be made without departing from the spirit and scope defined by the appended claims and their equivalents.

Claims

1. An organic light-emitting device, comprising: a first electrode; a second electrode facing the first electrode; m light-emitting units stacked between the first electrode and the second electrode and including at least one emission layer; as well as m-1 charge generation layers, each located between two adjacent light-emitting units in the m light-emitting units and including an n-type charge generation layer and a p-type charge generation layer, Where m is an integer of 2 or greater, At least one of the m-1 p-type charge generation layers includes a first doping layer and a second doping layer, The first doping layer includes a first organic material and a first inorganic material, The second doping layer includes a second organic material and a second inorganic material, and The first inorganic material and the second inorganic material are different from each other. The organic light-emitting device according to claim 1 , wherein m is 2 or 3. 3 . The organic light-emitting device of claim 1 , wherein the first doping layer is located at an interface between the n-type charge generation layer and the second doping layer.

4. The organic light-emitting device of claim 1 , wherein the first inorganic material comprises a late transition metal, a metalloid, a compound comprising two or more late transition metals, a compound comprising two or more metalloids, a compound comprising a late transition metal and a metalloid, or any combination thereof, The late transition metal comprises at least one selected from the group consisting of aluminum, gallium, indium, thallium, tin, lead, thallium, bismuth and polonium, and The metalloid includes at least one selected from boron, silicon, germanium, arsenic, antimony, tellurium, and astatine.

5. The organic light emitting device according to claim 1, wherein the first inorganic material comprises Bi2Te3, Bi7Te3, Bi2Te, Bi4Te3, BiTe, Bi6Te7, Bi4Te5, Bi x Te y , Sb2Te3, In2Te3, Ga2Te2, Al2Te3, Tl2Te3, As2Te3, GeSbTe, SnTe, PbTe, SiTe, GeTe, FlTe, SiGe, AlInSb, AlGaSb, AlAsSb, GaAs, InSb, AlSb, AlAs, Al a In a Sb、Al b In (1-b) Sb, GaSb, AlInGaAs or any combination thereof, wherein 0 <x<100,0<y<100,0<x+y≤100,0<a<1,0<b<1。 6 . The organic light-emitting device of claim 1 , wherein the second inorganic material comprises an alkali metal halide, an alkaline earth metal halide, a transition metal halide, a post-transition metal halide, a lanthanide metal halide, or any combination thereof. 7 . The organic light-emitting device of claim 1 , wherein the second inorganic material comprises an alkali metal iodide, an alkaline earth metal iodide, a transition metal iodide, a post-transition metal iodide, a lanthanide metal iodide, or any combination thereof.

8. The organic light-emitting device of claim 1 , wherein the second inorganic material comprises LiI, NaI, KI, RbI, CsI, BeI2, MgI2, CaI2, SrI2, BaI2, YbI, YbI2, YbI3, SmI3, CuI, TlI, AgI, CdI2, HgI2, SnI2, PbI2, BiI3, ZnI2, MnI2, FeI2, CoI2, NiI2, AlI3, InI3, GaI3, ThI4, UI3, or any combination thereof. 9 . The organic light-emitting device of claim 1 , wherein the first organic material and the second organic material each independently comprise a hole transport material.

10. The organic light-emitting device of claim 1, wherein the first organic material and the second organic material are each independently a compound represented by one selected from Formula 201, Formula 202, and Formulas 301-2 to 301-4: Formula 201 Formula 202 Formula 301-2 Formula 301-3 Formula 301-4 in, In Formula 201, Formula 202, and Formula 301-2 to Formula 301-4, A 301 To A 304 each independently selected from a benzene ring, a naphthalene ring, a phenanthrene ring, a fluoranthene ring, a triphenylene ring, a pyrene ring, a 1,2-triphenylene ring, a pyridine ring, a pyrimidine ring, an indene ring, a fluorene ring, a spiro-bifluorene ring, a benzofluorene ring, a dibenzofluorene ring, an indole ring, a carbazole ring, a benzocarbazole ring, a dibenzocarbazole ring, a furan ring, a benzofuran ring, a dibenzofuran ring, a naphthofuran ring, a benzonaphthofuran ring, a dinaphthofuran ring, a thiophene ring, a benzothiophene ring, a dibenzothiophene ring, a naphthothiophene ring, a benzonaphthothiophene ring, and a dinaphthothiophene ring, X 301 O, S or N-[(L 304 ) xb4 -R 304 ], X 302 is a single bond, C(R 305 )(R 306 ), O, S or N-[(L 305 ) xb5 -R 305 ], L 201 To L 204 and L 301 To L 305 are each independently selected from substituted or unsubstituted C3-C 10 Cycloalkylene, substituted or unsubstituted C1-C 10 Heterocycloalkylene, substituted or unsubstituted C3-C 10 Cycloalkenylene, substituted or unsubstituted C1-C 10 Heterocycloalkenylene, substituted or unsubstituted C6-C 60 Arylene, substituted or unsubstituted C1-C 60 heteroarylene, a substituted or unsubstituted divalent non-aromatic fused polycyclic group and a substituted or unsubstituted divalent non-aromatic fused heteropolycyclic group, L 205 Selected from *-O-*', *-S-*', *-N(Q 201 )-*', substituted or unsubstituted C1-C 20 Alkylene, substituted or unsubstituted C2-C 20 Alkenylene, substituted or unsubstituted C3-C 10 Cycloalkylene, substituted or unsubstituted C1-C 10 Heterocycloalkylene, substituted or unsubstituted C3-C 10 Cycloalkenylene, substituted or unsubstituted C1-C 10 Heterocycloalkenylene, substituted or unsubstituted C6-C 60 Arylene, substituted or unsubstituted C1-C 60 heteroarylene, a substituted or unsubstituted divalent non-aromatic fused polycyclic group and a substituted or unsubstituted divalent non-aromatic fused heteropolycyclic group, xa1 to xa4 are each independently an integer selected from 0 to 3, xa5 is an integer selected from 1 to 10, xb1 to xb5 are each independently an integer selected from 0 to 5, xb22 and xb23 are each independently 0, 1 or 2, R 201 to R 204 and Q 201 are each independently selected from substituted or unsubstituted C3-C 10 Cycloalkyl, substituted or unsubstituted C1-C 10 Heterocycloalkyl, substituted or unsubstituted C3-C 10 Cycloalkenyl, substituted or unsubstituted C1-C 10 Heterocycloalkenyl, substituted or unsubstituted C6-C 60 Aryl, substituted or unsubstituted C6-C 60 Aryloxy, substituted or unsubstituted C6-C 60 Arylthio, substituted or unsubstituted C1-C 60 heteroaryl, a substituted or unsubstituted monovalent non-aromatic fused polycyclic group and a substituted or unsubstituted monovalent non-aromatic fused heteropolycyclic group, R 301 to R 306 are each independently selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, nitro, amidino, hydrazine, hydrazone, substituted or unsubstituted C1-C 60 Alkyl, substituted or unsubstituted C2-C 60 Alkenyl, substituted or unsubstituted C2-C 60 Alkynyl, substituted or unsubstituted C1-C 60 Alkoxy, substituted or unsubstituted C3-C 10 Cycloalkyl, substituted or unsubstituted C1-C 10 Heterocycloalkyl, substituted or unsubstituted C3-C 10 Cycloalkenyl, substituted or unsubstituted C1-C 10 Heterocycloalkenyl, substituted or unsubstituted C6-C 60 Aryl, substituted or unsubstituted C6-C 60 Aryloxy, substituted or unsubstituted C6-C 60 Arylthio, substituted or unsubstituted C1-C 60 heteroaryl, substituted or unsubstituted monovalent non-aromatic fused polycyclic group, substituted or unsubstituted monovalent non-aromatic fused heteropolycyclic group, -Si(Q 301 )(Q 302 )(Q 303 )、-N(Q 301 )(Q 302 )、-B(Q 301 )(Q 302 ),-C(=O)(Q 301 )、-S(=O)2(Q 301 ) and -P(=O)(Q 301 )(Q 302 ), R 311 to R 314 Each is independently selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, nitro, amidino, hydrazine, hydrazone, C1-C 20 Alkyl, C1-C 20 Alkoxy, phenyl, biphenyl, terphenyl, naphthyl, -Si(Q 31 )(Q 32 )(Q 33 )、-N(Q 31 )(Q 32 )、-B(Q 31 )(Q 32 ),-C(=O)(Q 31 )、-S(=O)2(Q 31 ) and -P(=O)(Q 31 )(Q 32 ), The substituted C1-C 20 Alkylene, the substituted C2-C 20 Alkenylene, the substituted C3-C 10 Cycloalkylene, the substituted C1-C 10 Heterocycloalkylene, the substituted C3-C 10 Cycloalkenylene, the substituted C1-C 10 Heterocycloalkenylene, the substituted C6-C 60 Arylene, the substituted C1-C 60 Heteroarylene, the substituted divalent non-aromatic fused polycyclic group, the substituted divalent non-aromatic fused heteropolycyclic group, the substituted C1-C 60 Alkyl, the substituted C2-C 60 Alkenyl, the substituted C2-C 60 Alkynyl, the substituted C1-C 60 Alkoxy, the substituted C3-C 10 Cycloalkyl, the substituted C1-C 10 Heterocycloalkyl, the substituted C3-C 10 Cycloalkenyl, the substituted C1-C 10 Heterocycloalkenyl, the substituted C6-C 60 Aryl, the substituted C6-C 60 Aryloxy, the substituted C6-C 60 Arylthio, the substituted C1-C 60 At least one substituent of the heteroaryl group, the substituted monovalent non-aromatic fused polycyclic group, and the substituted monovalent non-aromatic fused heteropolycyclic group is selected from the group consisting of: Deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl and C1-C 60 alkoxy; Each of the following C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl and C1-C 60 Alkoxy: deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C3-C 10 Cycloalkyl, C1-C 10 Heterocycloalkyl, C3-C 10 Cycloalkenyl, C1-C 10 Heterocycloalkenyl, C6-C 60 Aryl, C6-C 60 Aryloxy, C6-C 60 Arylthio, C1-C 60 Heteroaryl, monovalent non-aromatic fused polycyclic group, monovalent non-aromatic fused heteropolycyclic group, -Si(Q 11 )(Q 12 )(Q 13 )、-N(Q 11 )(Q 12 )、-B(Q 11 )(Q 12 ),-C(=O)(Q 11 )、-S(=O)2(Q 11 ) and -P(=O)(Q 11 )(Q 12 ); C3-C 10 Cycloalkyl, C1-C 10 Heterocycloalkyl, C3-C 10 Cycloalkenyl, C1-C 10 Heterocycloalkenyl, C6-C 60 Aryl, C6-C 60 Aryloxy, C6-C 60 Arylthio, C1-C 60 heteroaryl groups, monovalent non-aromatic fused polycyclic groups, and monovalent non-aromatic fused heteropolycyclic groups; Each of the C3-C 10 Cycloalkyl, C1-C 10 Heterocycloalkyl, C3-C 10 Cycloalkenyl, C1-C 10 Heterocycloalkenyl, C6-C 60 Aryl, C6-C 60 Aryloxy, C6-C 60 Arylthio, C1-C 60 Heteroaryl, monovalent non-aromatic fused polycyclic groups and monovalent non-aromatic fused heteropolycyclic groups: deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl, C1-C 60 Alkoxy, C3-C 10 Cycloalkyl, C1-C 10 Heterocycloalkyl, C3-C 10 Cycloalkenyl, C1-C 10 Heterocycloalkenyl, C6-C 60 Aryl, C6-C 60 Aryloxy, C6-C 60 Arylthio, C1-C 60 Heteroaryl, monovalent non-aromatic fused polycyclic group, monovalent non-aromatic fused heteropolycyclic group, -Si(Q 21 )(Q 22 )(Q 23 )、-N(Q 21 )(Q 22 )、-B(Q 21 )(Q 22 ),-C(=O)(Q 21 )、-S(=O)2(Q 21 ) and -P(=O)(Q 21 )(Q 22 ); as well as -Si(Q 31 )(Q 32 )(Q 33 )、-N(Q 31 )(Q 32 )、-B(Q 31 )(Q 32 )、-C(=O)(Q 31 )、-S(=O)2(Q 31 ) and -P(=O)(Q 31 )(Q 32 ), and where Q 11 To Q 13 , Q 21 To Q 23 , Q 31 To Q 33 and Q 301 To Q 303 Each independently selected from C1-C 10 Alkyl, C1-C 10 alkoxy, phenyl, biphenyl, terphenyl and naphthyl, and * and *' each independently indicate a binding site to an adjacent atom.

11. The organic light-emitting device of claim 1 , wherein the first inorganic material is included in the first doping layer in an amount of 0.1 to 20 parts by weight based on 100 parts by weight of the first organic material, and The second inorganic material may be included in the second doping layer in an amount of 0.1 to 20 parts by weight based on 100 parts by weight of the second organic material.

12. The organic light-emitting device according to claim 1, wherein the thickness of the first doping layer and the second doping layer are independently to 13. The organic light-emitting device of claim 1 , wherein the m-1 n-type charge generation layers comprise a metal-free compound containing at least one π-electron-deficient nitrogen-containing ring, a compound represented by Formula 601, a metal-containing material, or any combination thereof: Formula 601 [On 601 ] xe11 -[(L 601 ) xe1 -R 601 ] xe21 , in, In Equation 601, Ar 601 is substituted or unsubstituted C5-C 60 Carbocyclic group or substituted or unsubstituted C1-C 60 Heterocyclic groups, xe11 is 1, 2, or 3, L 601 Selected from substituted or unsubstituted C3-C 10 Cycloalkylene, substituted or unsubstituted C1-C 10 Heterocycloalkylene, substituted or unsubstituted C3-C 10 Cycloalkenylene, substituted or unsubstituted C1-C 10 Heterocycloalkenylene, substituted or unsubstituted C6-C 60 Arylene, substituted or unsubstituted C1-C 60 heteroarylene, a substituted or unsubstituted divalent non-aromatic fused polycyclic group and a substituted or unsubstituted divalent non-aromatic fused heteropolycyclic group, xe1 is an integer selected from 0 to 5, R 601 Selected from substituted or unsubstituted C3-C 10 Cycloalkyl, substituted or unsubstituted C1-C 10 Heterocycloalkyl, substituted or unsubstituted C3-C 10 Cycloalkenyl, substituted or unsubstituted C1-C 10 Heterocycloalkenyl, substituted or unsubstituted C6-C 60 Aryl, substituted or unsubstituted C6-C 60 Aryloxy, substituted or unsubstituted C6-C 60 Arylthio, substituted or unsubstituted C1-C 60 heteroaryl, substituted or unsubstituted monovalent non-aromatic fused polycyclic group, substituted or unsubstituted monovalent non-aromatic fused heteropolycyclic group, -Si(Q 601 )(Q 602 )(Q 603 ),-C(=O)(Q 601 )、-S(=O)2(Q 601 ) and -P(=O)(Q 601 )(Q 602 ), Q 601 To Q 603 Each independently is C1-C 10 Alkyl, C1-C 10 an alkoxy group, a phenyl group, a biphenyl group, a terphenyl group or a naphthyl group, xe21 is an integer selected from 1 to 5, and The substituted C5-C 60 Carbocyclic group, the substituted C1-C 60 Heterocyclic group, the substituted C3-C 10 Cycloalkylene, the substituted C1-C 10 Heterocycloalkylene, the substituted C3-C 10 Cycloalkenylene, the substituted C1-C 10 Heterocycloalkenylene, the substituted C6-C 60 Arylene, the substituted C1-C 60 Heteroarylene, the substituted divalent non-aromatic fused polycyclic group, the substituted divalent non-aromatic fused heteropolycyclic group, the substituted C3-C 10 Cycloalkyl, the substituted C1-C 10 Heterocycloalkyl, the substituted C3-C 10 Cycloalkenyl, the substituted C1-C 10 Heterocycloalkenyl, the substituted C6-C 60 Aryl, the substituted C6-C 60 Aryloxy, the substituted C6-C 60 Arylthio, the substituted C1-C 60 At least one substituent of the heteroaryl group, the substituted monovalent non-aromatic fused polycyclic group, and the substituted monovalent non-aromatic fused heteropolycyclic group is selected from the group consisting of: Deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl and C1-C 60 alkoxy; Each of the following C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl and C1-C 60 Alkoxy: deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C3-C 10 Cycloalkyl, C1-C 10 Heterocycloalkyl, C3-C 10 Cycloalkenyl, C1-C 10 Heterocycloalkenyl, C6-C 60 Aryl, C6-C 60 Aryloxy, C6-C 60 Arylthio, C1-C 60 Heteroaryl, monovalent non-aromatic fused polycyclic group, monovalent non-aromatic fused heteropolycyclic group, -Si(Q 11 )(Q 12 )(Q 13 )、-N(Q 11 )(Q 12 )、-B(Q 11 )(Q 12 ),-C(=O)(Q 11 )、-S(=O)2(Q 11 ) and -P(=O)(Q 11 )(Q 12 ); C3-C 10 Cycloalkyl, C1-C 10 Heterocycloalkyl, C3-C 10 Cycloalkenyl, C1-C 10 Heterocycloalkenyl, C6-C 60 Aryl, C6-C 60 Aryloxy, C6-C 60 Arylthio, C1-C 60 heteroaryl groups, monovalent non-aromatic fused polycyclic groups, and monovalent non-aromatic fused heteropolycyclic groups; Each of the C3-C 10 Cycloalkyl, C1-C 10 Heterocycloalkyl, C3-C 10 Cycloalkenyl, C1-C 10 Heterocycloalkenyl, C6-C 60 Aryl, C6-C 60 Aryloxy, C6-C 60 Arylthio, C1-C 60 Heteroaryl, monovalent non-aromatic fused polycyclic groups and monovalent non-aromatic fused heteropolycyclic groups: deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl, C1-C 60 Alkoxy, C3-C 10 Cycloalkyl, C1-C 10 Heterocycloalkyl, C3-C 10 Cycloalkenyl, C1-C 10 Heterocycloalkenyl, C6-C 60 Aryl, C6-C 60 Aryloxy, C6-C 60 Arylthio, C1-C 60 Heteroaryl, monovalent non-aromatic fused polycyclic group, monovalent non-aromatic fused heteropolycyclic group, -Si(Q 21 )(Q 22 )(Q 23 )、-N(Q 21 )(Q 22 )、-B(Q 21 )(Q 22 ),-C(=O)(Q 21 )、-S(=O)2(Q 21 ) and -P(=O)(Q 21 )(Q 22 ); as well as -Si(Q 31 )(Q 32 )(Q 33 )、-N(Q 31 )(Q 32 )、-B(Q 31 )(Q 32 )、-C(=O)(Q 31 )、-S(=O)2(Q 31 ) and -P(=O)(Q 31 )(Q 32 ), and where Q 11 To Q 13 , Q 21 To Q 23 and Q 31 To Q 33 are each independently selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl, C1-C 60 Alkoxy, C3-C 10 Cycloalkyl, C1-C 10 Heterocycloalkyl, C3-C 10 Cycloalkenyl, C1-C 10 Heterocycloalkenyl, C6-C 60 Aryl, C1-C 60 heteroaryl group, a monovalent non-aromatic fused polycyclic group, a monovalent non-aromatic fused heteropolycyclic group, a biphenyl group, and a terphenyl group.

14. The organic light-emitting device of claim 1 , wherein at least one emission layer in the m light-emitting units comprises a condensed ring compound represented by Formula 3: Formula 3 in, In formula 3, L 31 Selected from unsubstituted or substituted C5-C 60 Carbocyclic groups and unsubstituted or substituted C1-C 60 Heterocyclic groups, a31 is an integer selected from 0 to 5, R 31 and R 32 are each independently selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, substituted or unsubstituted C1-C 60 Alkyl, substituted or unsubstituted C2-C 60 Alkenyl, substituted or unsubstituted C2-C 60 Alkynyl, substituted or unsubstituted C1-C 60 Alkoxy, substituted or unsubstituted C3-C 10 Cycloalkyl, substituted or unsubstituted C1-C 10 Heterocycloalkyl, substituted or unsubstituted C3-C 10 Cycloalkenyl, substituted or unsubstituted C1-C 10 Heterocycloalkenyl, substituted or unsubstituted C6-C 60 Aryl, substituted or unsubstituted C6-C 60 Aryloxy, substituted or unsubstituted C6-C 60 Arylthio, substituted or unsubstituted C1-C 60 heteroaryl, a substituted or unsubstituted monovalent non-aromatic fused polycyclic group, a substituted or unsubstituted monovalent non-aromatic fused heteropolycyclic group, -Si(Q1)(Q2)(Q3), -N(Q1)(Q2), -B(Q1)(Q2), -C(=O)(Q1), -S(=O)2(Q1) and -P(=O)(Q1)(Q2), b31 and b32 are each independently an integer selected from 1 to 5, n31 is an integer selected from 1 to 3, and The substituted C5-C 60 Carbocyclic group, the substituted C1-C 60 Heterocyclic group, the substituted C1-C 60 Alkyl, the substituted C2-C 60 Alkenyl, the substituted C2-C 60 Alkynyl, the substituted C1-C 60 Alkoxy, the substituted C3-C 10 Cycloalkyl, the substituted C1-C 10 Heterocycloalkyl, the substituted C3-C 10 Cycloalkenyl, the substituted C1-C 10 Heterocycloalkenyl, the substituted C6-C 60 Aryl, the substituted C6-C 60 Aryloxy, the substituted C6-C 60 Arylthio, the substituted C1-C 60 At least one substituent of the heteroaryl group, the substituted monovalent non-aromatic fused polycyclic group, or the substituted monovalent non-aromatic fused heteropolycyclic group is selected from the group consisting of: Deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl and C1-C 60 alkoxy; Each of the following C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl and C1-C 60 Alkoxy: deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C3-C 10 Cycloalkyl, C1-C 10 Heterocycloalkyl, C3-C 10 Cycloalkenyl, C1-C 10 Heterocycloalkenyl, C6-C 60 Aryl, C6-C 60 Aryloxy, C6-C 60 Arylthio, C1-C 60 Heteroaryl, monovalent non-aromatic fused polycyclic group, monovalent non-aromatic fused heteropolycyclic group, -Si(Q 11 )(Q 12 )(Q 13 )、-N(Q 11 )(Q 12 )、-B(Q 11 )(Q 12 ),-C(=O)(Q 11 )、-S(=O)2(Q 11 ) and -P(=O)(Q 11 )(Q 12 ); C3-C 10 Cycloalkyl, C1-C 10 Heterocycloalkyl, C3-C 10 Cycloalkenyl, C1-C 10 Heterocycloalkenyl, C6-C 60 Aryl, C6-C 60 Aryloxy, C6-C 60 Arylthio, C1-C 60 heteroaryl groups, monovalent non-aromatic fused polycyclic groups, and monovalent non-aromatic fused heteropolycyclic groups; Each of the C3-C 10 Cycloalkyl, C1-C 10 Heterocycloalkyl, C3-C 10 Cycloalkenyl, C1-C 10 Heterocycloalkenyl, C6-C 60 Aryl, C6-C 60 Aryloxy, C6-C 60 Arylthio, C1-C 60 Heteroaryl, monovalent non-aromatic fused polycyclic groups and monovalent non-aromatic fused heteropolycyclic groups: deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl, C1-C 60 Alkoxy, C3-C 10 Cycloalkyl, C1-C 10 Heterocycloalkyl, C3-C 10 Cycloalkenyl, C1-C 10 Heterocycloalkenyl, C6-C 60 Aryl, C6-C 60 Aryloxy, C6-C 60 Arylthio, C1-C 60 Heteroaryl, monovalent non-aromatic fused polycyclic group, monovalent non-aromatic fused heteropolycyclic group, -Si(Q 21 )(Q 22 )(Q 23 )、-N(Q 21 )(Q 22 )、-B(Q 21 )(Q 22 ),-C(=O)(Q 21 )、-S(=O)2(Q 21 ) and -P(=O)(Q 21 )(Q 22 ); as well as -Si(Q 31 )(Q 32 )(Q 33 )、-N(Q 31 )(Q 32 )、-B(Q 31 )(Q 32 )、-C(=O)(Q 31 )、-S(=O)2(Q 31 ) and -P(=O)(Q 31 )(Q 32 ), and Among them, Q1 to Q3, Q 11 To Q 13 , Q 21 To Q 23 and Q 31 To Q 33 are each independently selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl, C1-C 60 Alkoxy, C3-C 10 Cycloalkyl, C1-C 10 Heterocycloalkyl, C3-C 10 Cycloalkenyl, C1-C 10 Heterocycloalkenyl, C6-C 60 Aryl, C1-C 60 heteroaryl group, a monovalent non-aromatic fused polycyclic group, a monovalent non-aromatic fused heteropolycyclic group, a biphenyl group, and a terphenyl group.

15. The light emitting device according to claim 14, wherein R in Formula 3 31 and R 32 At least one of them is a group represented by one selected from Formula 3A and Formula 3B: in, In Formula 3A and Formula 3B, CY 41 and CY 42 Each independently selected from C5-C 30 Carbocyclic groups and C1-C 30 Heterocyclic groups, X 41 Selected from O, S and N(R 43 ), R 41 to R 43 are each independently selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, substituted or unsubstituted C1-C 60 Alkyl, substituted or unsubstituted C2-C 60 Alkenyl, substituted or unsubstituted C2-C 60 Alkynyl, substituted or unsubstituted C1-C 60 Alkoxy, substituted or unsubstituted C3-C 10 Cycloalkyl, substituted or unsubstituted C1-C 10 Heterocycloalkyl, substituted or unsubstituted C3-C 10 Cycloalkenyl, substituted or unsubstituted C1-C 10 Heterocycloalkenyl, substituted or unsubstituted C6-C 60 Aryl, substituted or unsubstituted C6-C 60 Aryloxy, substituted or unsubstituted C6-C 60 Arylthio, substituted or unsubstituted C1-C 60 heteroaryl, a substituted or unsubstituted monovalent non-aromatic fused polycyclic group, a substituted or unsubstituted monovalent non-aromatic fused heteropolycyclic group, -Si(Q1)(Q2)(Q3), -N(Q1)(Q2), -B(Q1)(Q2), -C(=O)(Q1), -S(=O)2(Q1) and -P(=O)(Q1)(Q2), b41 and b42 are each independently an integer selected from 1 to 10, * indicates the binding site to the adjacent atom, and The substituted C1-C 60 Alkyl, the substituted C2-C 60 Alkenyl, the substituted C2-C 60 Alkynyl, the substituted C1-C 60 Alkoxy, the substituted C3-C 10 Cycloalkyl, the substituted C1-C 10 Heterocycloalkyl, the substituted C3-C 10 Cycloalkenyl, the substituted C1-C 10 Heterocycloalkenyl, the substituted C6-C 60 Aryl, the substituted C6-C 60 Aryloxy, the substituted C6-C 60 Arylthio, the substituted C1-C 60 At least one substituent of the heteroaryl group, the substituted monovalent non-aromatic fused polycyclic group, and the substituted monovalent non-aromatic fused heteropolycyclic group is selected from the group consisting of: Deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl and C1-C 60 alkoxy; Each of the following C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl and C1-C 60 Alkoxy: deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C3-C 10 Cycloalkyl, C1-C 10 Heterocycloalkyl, C3-C 10 Cycloalkenyl, C1-C 10 Heterocycloalkenyl, C6-C 60 Aryl, C6-C 60 Aryloxy, C6-C 60 Arylthio, C1-C 60 Heteroaryl, monovalent non-aromatic fused polycyclic group, monovalent non-aromatic fused heteropolycyclic group, -Si(Q 11 )(Q 12 )(Q 13 )、-N(Q 11 )(Q 12 )、-B(Q 11 )(Q 12 ),-C(=O)(Q 11 )、-S(=O)2(Q 11 ) and -P(=O)(Q 11 )(Q 12 ); C3-C 10 Cycloalkyl, C1-C 10 Heterocycloalkyl, C3-C 10 Cycloalkenyl, C1-C 10 Heterocycloalkenyl, C6-C 60 Aryl, C6-C 60 Aryloxy, C6-C 60 Arylthio, C1-C 60 heteroaryl groups, monovalent non-aromatic fused polycyclic groups, and monovalent non-aromatic fused heteropolycyclic groups; Each of the C3-C 10 Cycloalkyl, C1-C 10 Heterocycloalkyl, C3-C 10 Cycloalkenyl, C1-C 10 Heterocycloalkenyl, C6-C 60 Aryl, C6-C 60 Aryloxy, C6-C 60 Arylthio, C1-C 60 Heteroaryl, monovalent non-aromatic fused polycyclic groups and monovalent non-aromatic fused heteropolycyclic groups: deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl, C1-C 60 Alkoxy, C3-C 10 Cycloalkyl, C1-C 10 Heterocycloalkyl, C3-C 10 Cycloalkenyl, C1-C 10 Heterocycloalkenyl, C6-C 60 Aryl, C6-C 60 Aryloxy, C6-C 60 Arylthio, C1-C 60 Heteroaryl, monovalent non-aromatic fused polycyclic group, monovalent non-aromatic fused heteropolycyclic group, -Si(Q 21 )(Q 22 )(Q 23 )、-N(Q 21 )(Q 22 )、-B(Q 21 )(Q 22 ),-C(=O)(Q 21 )、-S(=O)2(Q 21 ) and -P(=O)(Q 21 )(Q 22 ); as well as -Si(Q 31 )(Q 32 )(Q 33 )、-N(Q 31 )(Q 32 )、-B(Q 31 )(Q 32 )、-C(=O)(Q 31 )、-S(=O)2(Q 31 ) and -P(=O)(Q 31 )(Q 32 ), and Among them, Q1 to Q3, Q 11 To Q 13 , Q 21 To Q 23 and Q 31 To Q 33 are each independently selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl, C1-C 60 Alkoxy, C3-C 10 Cycloalkyl, C1-C 10 Heterocycloalkyl, C3-C 10 Cycloalkenyl, C1-C 10 Heterocycloalkenyl, C6-C 60 Aryl, C1-C 60 heteroaryl group, a monovalent non-aromatic fused polycyclic group, a monovalent non-aromatic fused heteropolycyclic group, a biphenyl group, and a terphenyl group.

16. The organic light-emitting device of claim 1, wherein at least one emission layer in the m light-emitting units comprises a condensed ring compound represented by Formula 4: Formula 4 in, In formula 4, X 51 Selected from C(R 54 )(R 55 )、N(R 54 ), O and S, X 52 Selected from C(R 56 )(R 57 )、N(R 56 ), O and S, CY 51 To CY 53 Each independently selected from C5-C 30 Carbocyclic groups and C1-C 30 Heterocyclic groups, R 51 to R 53 and R 54 to R 57 are each independently selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, substituted or unsubstituted C1-C 60 Alkyl, substituted or unsubstituted C2-C 60 Alkenyl, substituted or unsubstituted C2-C 60 Alkynyl, substituted or unsubstituted C1-C 60 Alkoxy, substituted or unsubstituted C3-C 10 Cycloalkyl, substituted or unsubstituted C1-C 10 Heterocycloalkyl, substituted or unsubstituted C3-C 10 Cycloalkenyl, substituted or unsubstituted C1-C 10 Heterocycloalkenyl, substituted or unsubstituted C6-C 60 Aryl, substituted or unsubstituted C6-C 60 Aryloxy, substituted or unsubstituted C6-C 60 Arylthio, substituted or unsubstituted C1-C 60 heteroaryl, a substituted or unsubstituted monovalent non-aromatic fused polycyclic group, a substituted or unsubstituted monovalent non-aromatic fused heteropolycyclic group, -Si(Q1)(Q2)(Q3), -N(Q1)(Q2), -B(Q1)(Q2), -C(=O)(Q1), -S(=O)2(Q1) and -P(=O)(Q1)(Q2), b51 to b53 are each independently an integer selected from 1 to 10, When b51, b52 and / or b53 are at least 2, two adjacent R 51 Group, two adjacent R 52 Group and / or two adjacent R 53 The groups are optionally linked to form C5-C 30 Carbocyclic group or C1-C 30 a heterocyclic group, and The substituted C1-C 60 Alkyl, the substituted C2-C 60 Alkenyl, the substituted C2-C 60 Alkynyl, the substituted C1-C 60 Alkoxy, the substituted C3-C 10 Cycloalkyl, the substituted C1-C 10 Heterocycloalkyl, the substituted C3-C 10 Cycloalkenyl, the substituted C1-C 10 Heterocycloalkenyl, the substituted C6-C 60 Aryl, the substituted C6-C 60 Aryloxy, the substituted C6-C 60 Arylthio, the substituted C1-C 60 At least one substituent of the heteroaryl group, the substituted monovalent non-aromatic fused polycyclic group, or the substituted monovalent non-aromatic fused heteropolycyclic group is selected from the group consisting of: Deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl and C1-C 60 alkoxy; Each of the following C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl and C1-C 60 Alkoxy: deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C3-C 10 Cycloalkyl, C1-C 10 Heterocycloalkyl, C3-C 10 Cycloalkenyl, C1-C 10 Heterocycloalkenyl, C6-C 60 Aryl, C6-C 60 Aryloxy, C6-C 60 Arylthio, C1-C 60 Heteroaryl, monovalent non-aromatic fused polycyclic group, monovalent non-aromatic fused heteropolycyclic group, -Si(Q 11 )(Q 12 )(Q 13 )、-N(Q 11 )(Q 12 )、-B(Q 11 )(Q 12 ),-C(=O)(Q 11 )、-S(=O)2(Q 11 ) and -P(=O)(Q 11 )(Q 12 ); C3-C 10 Cycloalkyl, C1-C 10 Heterocycloalkyl, C3-C 10 Cycloalkenyl, C1-C 10 Heterocycloalkenyl, C6-C 60 Aryl, C6-C 60 Aryloxy, C6-C 60 Arylthio, C1-C 60 heteroaryl groups, monovalent non-aromatic fused polycyclic groups, and monovalent non-aromatic fused heteropolycyclic groups; Each of the C3-C 10 Cycloalkyl, C1-C 10 Heterocycloalkyl, C3-C 10 Cycloalkenyl, C1-C 10 Heterocycloalkenyl, C6-C 60 Aryl, C6-C 60 Aryloxy, C6-C 60 Arylthio, C1-C 60 Heteroaryl, monovalent non-aromatic fused polycyclic groups and monovalent non-aromatic fused heteropolycyclic groups: deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl, C1-C 60 Alkoxy, C3-C 10 Cycloalkyl, C1-C 10 Heterocycloalkyl, C3-C 10 Cycloalkenyl, C1-C 10 Heterocycloalkenyl, C6-C 60 Aryl, C6-C 60 Aryloxy, C6-C 60 Arylthio, C1-C 60 Heteroaryl, monovalent non-aromatic fused polycyclic group, monovalent non-aromatic fused heteropolycyclic group, -Si(Q 21 )(Q 22 )(Q 23 )、-N(Q 21 )(Q 22 )、-B(Q 21 )(Q 22 ),-C(=O)(Q 21 )、-S(=O)2(Q 21 ) and -P(=O)(Q 21 )(Q 22 ); as well as -Si(Q 31 )(Q 32 )(Q 33 )、-N(Q 31 )(Q 32 )、-B(Q 31 )(Q 32 )、-C(=O)(Q 31 )、-S(=O)2(Q 31 ) and -P(=O)(Q 31 )(Q 32 ), and Among them, Q1 to Q3, Q 11 To Q 13 , Q 21 To Q 23 and Q 31 To Q 33 are each independently selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazine, hydrazone, C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl, C1-C 60 Alkoxy, C3-C 10 Cycloalkyl, C1-C 10 Heterocycloalkyl, C3-C 10 Cycloalkenyl, C1-C 10 Heterocycloalkenyl, C6-C 60 Aryl, C1-C 60 heteroaryl group, a monovalent non-aromatic fused polycyclic group, a monovalent non-aromatic fused heteropolycyclic group, a biphenyl group, and a terphenyl group.

17. The organic light-emitting device according to claim 1, wherein m is an integer of 3 or greater, and Maximum emission wavelengths of light emitted by at least three of the m light emitting units are identical to each other. 18 . An electronic device comprising the organic light-emitting device according to claim 1 . 19 . The electronic device of claim 18 , further comprising a color conversion layer located in a propagation direction of at least one light emitted from the organic light emitting device.

20. The electronic device of claim 19, wherein the color conversion layer comprises quantum dots.

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