Light-emitting device, and electronic apparatus and electronic equipment including same

Abstract

The invention discloses a light-emitting device and electronic equipment and electronic equipment comprising the same. The light emitting device may include a first electrode, a second electrode that may face the first electrode, and an interlayer that may be disposed between the first electrode and the second electrode and may include an emission layer. Interlayers may include a first compound represented by Formula 1 and a second compound represented by Formula 2: Formula 1 and Formula 2

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to and the benefit of Korean Patent Application No. 10-2024-0049405, filed on April 12, 2024, in the Korean Intellectual Property Office, the disclosure of which is incorporated herein by reference in its entirety. Technical Field

[0003] One or more embodiments of the present disclosure relate to a light emitting device, an electronic device, and an electronic equipment, wherein each of the electronic device and the electronic equipment may include a light emitting device. Background Art

[0004] Among the light-emitting devices, a self-emitting device (eg, an organic light-emitting device) has a relatively wide viewing angle, a high contrast ratio, a short response time, and / or excellent or appropriate characteristics in terms of brightness, driving voltage, and / or response speed.

[0005] The light-emitting device may include a first electrode, a hole transport region, an emission layer, an electron transport region, and a second electrode, which may be arranged in sequence. Holes injected from the first electrode may move toward the emission layer through the hole transport region. Electrons injected from the second electrode may move toward the emission layer through the electron transport region. Carriers (such as holes and electrons) may recombine in the emission layer to generate excitons. If (for example, when) the excitons drop from an excited state to a ground state, light may be generated. Summary of the Invention

[0006] One or more aspects of the embodiments of the present disclosure relate to a light-emitting device having excellent or appropriate driving voltage, luminous efficiency, and lifespan, and electronic devices and electronic equipment, each of which has improved or appropriate display quality by including the light-emitting device.

[0007] Additional aspects of the embodiments 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] According to one or more embodiments, a light emitting device may include a first electrode, a second electrode that may face the first electrode, and an interlayer that may be disposed between the first electrode and the second electrode and may include an emission layer, wherein the interlayer may include a first compound represented by Formula 1 and a second compound represented by Formula 2:

[0009] Formula 1

[0010]

[0011] Among them, in formula 1,

[0012] At least one selected from Z1 to Z3 may be a group represented by formula TZ:

[0013] Formula TZ

[0014]

[0015] Formula 2

[0016]

[0017] Among them, in formula 1, formula TZ and formula 2,

[0018] Ring CY1 may be unsubstituted or substituted with at least one R 10a Substituted C3-C 30 Carbocyclic groups are either unsubstituted or substituted with at least one R 10a Substituted C1-C 30 heterocyclic group,

[0019] Ring CY2 may be unsubstituted or substituted with at least one R 10a Substituted C3-C 20 Cycloalkyl,

[0020] X1 may be a carbon atom (C) forming a ring CY2, and X1 may be bonded to four different atoms (ie, the four atoms are not the same atom),

[0021] L 11 , L 21 and L 22 Each independently may be a single bond (eg, a single covalent bond), unsubstituted or substituted with at least one R 10a Substituted C3-C 30 Carbocyclic groups are either unsubstituted or substituted with at least one R 10a Substituted C1-C 30 heterocyclic group,

[0022] a11, a21 and a22 may each independently be an integer selected from 1 to 5,

[0023] Y 21 Can be N or C(R 21 ), Y 22 Can be N or C(R 22 ), Y 23 Can be N or C(R 23 ), and selected from Y 21 To Y 23 At least one of may be N,

[0024] Z1 to Z3, R 11 to R 14 and R 21 to R 27can be independently hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, unsubstituted or replaced by at least one R 10a Substituted C1-C 60 Alkyl, unsubstituted or substituted with at least one R 10a Substituted C2-C 60 Alkenyl, unsubstituted or substituted with at least one R 10a Substituted C2-C 60 Alkynyl, unsubstituted or substituted with at least one R 10a Substituted C1-C 60 Alkoxy, unsubstituted or substituted with at least one R 10a Substituted C3-C 60 Carbocyclic group, unsubstituted or substituted by at least one R 10a Substituted C1-C 60 heterocyclic group, -Si(Q1)(Q2)(Q3), -N(Q1)(Q2), -B(Q1)(Q2), -C(=O)(Q1), -S(=O)2(Q1), or -P(=O)(Q1)(Q2),

[0025] R 26 and L 21 may be optionally bonded to each other via a direct bond (eg, a single covalent bond) or *-O-*' to form an unsubstituted or substituted group consisting of at least one R 10a Substituted C1-C 30 heterocyclic group,

[0026] R 27 and L 21 may be optionally bonded to each other via a direct bond (eg, a single covalent bond) or *-O-*' to form an unsubstituted or substituted group consisting of at least one R 10a Substituted C1-C 30 heterocyclic group,

[0027] R 26 and R 27 may be optionally bonded to each other via a direct bond (eg, a single covalent bond) or *-O-*' to form an unsubstituted or substituted group consisting of at least one R 10a Substituted C1-C 30 heterocyclic group,

[0028] R 10a Can be:

[0029] deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano or nitro,

[0030] Each unsubstituted or substituted C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl or C1-C60 Alkoxy: deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, C3-C 60 Carbocyclic group, C1-C 60 Heterocyclic group, C6-C 60 Aryloxy, C6-C 60 Arylthio, C7-C 60 Aralkyl, C2-C 60 Heteroaralkyl, -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 ),-P(=O)(Q 11 )(Q 12 ) or any combination thereof,

[0031] Each unsubstituted or substituted C3-C 60 Carbocyclic group, C1-C 60 Heterocyclic group, C6-C 60 Aryloxy, C6-C 60 Arylthio, C7-C 60 Arylalkyl or C2-C 60 Heteroarylalkyl: deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl, C1-C 60 Alkoxy, C3-C 60 Carbocyclic group, C1-C 60 Heterocyclic group, C6-C 60 Aryloxy, C6-C 60 Arylthio, C7-C 60 Aralkyl, C2-C 60 Heteroaralkyl, -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 ),-P(=O)(Q 21 )(Q 22 ) or any combination thereof, or

[0032] -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 ) or -P(=O)(Q 31 )(Q 32 ),

[0033] Q1 to Q3, Q 11 To Q 13 , Q 21 To Q 23 and Q 31 To Q 33 Can be independently:

[0034] hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, or nitro, or

[0035] Each unsubstituted or deuterated, -F, cyano, C1-C 60 Alkyl, C1-C 60 C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl, C1-C 60 Alkoxy, C3-C 60 Carbocyclic or C1-C 60 heterocyclic group, and

[0036] * and *' may each independently be a binding site to an adjacent atom.

[0037] According to one or more embodiments, an electronic device may include the light emitting device according to one or more embodiments and a thin film transistor electrically connected to the light emitting device.

[0038] According to one or more embodiments, the electronic equipment may include a light-emitting device as described in one or more embodiments, wherein the electronic equipment may be one selected from a flat panel display, a curved display, a computer monitor, a medical monitor, a television, a billboard, a lamp for indoor lighting or outdoor lighting and / or signaling (for example, a lamp for indoor lighting or outdoor lighting (for example, an indoor lamp or an outdoor lamp) or a lamp for indoor signaling or outdoor signaling (for example, an indoor signal lamp or an outdoor signal lamp)), a head-up display, a fully transparent or partially transparent display, a flexible display, a rollable display, a foldable display, a retractable display, a laser printer, a telephone, a mobile phone, a tablet personal computer, a tablet mobile computer, a personal digital assistant (PDA), a wearable device, a laptop computer, a digital camera, a video camera, a viewfinder, a microdisplay, a three-dimensional (3D) display, a virtual or augmented reality display, a vehicle, a video wall comprising multiple displays spliced ​​together, a theater or stadium screen, a light therapy device, and a sign, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The above and other aspects and features of certain embodiments of the present disclosure will become more apparent from the following description taken in conjunction with the accompanying drawings, in which:

[0040] Figure 1 is a schematic cross-sectional view of a light emitting device according to one or more embodiments;

[0041] Figure 2 is a schematic cross-sectional view of an electronic device according to one or more embodiments;

[0042] Figure 3 is a schematic cross-sectional view of an electronic device according to another embodiment;

[0043] Figure 4 is a schematic perspective view of an electronic device including a light emitting device according to one or more embodiments;

[0044] Figure 5 A diagram schematically illustrating an exterior of a vehicle as an electronic device including a light emitting device according to one or more embodiments; and

[0045] Figures 6A to 6C For each schematic explanation Figure 5 Diagram of the interior of the vehicle. DETAILED DESCRIPTION

[0046] One or more embodiments will now be described in more detail with reference to examples thereof in the accompanying drawings, wherein like reference numerals refer to like elements throughout the disclosure. In this regard, one or more embodiments of the present disclosure may have different forms and should not be construed as limited to the embodiments set forth herein. For example, in one or more embodiments, only certain embodiments are described with reference to the figures to explain various aspects of the embodiments of the present disclosure.

[0047] In the drawings, the thickness of layers, films, panels, and / or regions, etc., may be exaggerated for clarity. In the drawings, the thickness of portions of layers or regions, etc., may be exaggerated for clarity. It will be understood that if (for example, when) an element (such as a layer, film, region, or substrate) is referred to as being "on" another element (such as a layer, film, region, or substrate), it can be directly on the other element (such as a layer, film, region, or substrate), or intervening elements may also be present. In contrast, when an element (such as a layer, film, region, or substrate) is referred to as being "directly on" another element (such as a layer, film, region, or substrate), there are no intervening elements.

[0048] As used herein, the terms "and / or" and "or" may include any and all combinations of one or more of the associated listed items.

[0049] In the context of this disclosure, and unless otherwise limited, the terms "use," "using," and "used" may be considered synonymous with the terms "utilize," "utilizing," and "utilized," respectively.

[0050] As used herein, the term "about" or similar terms is used as a term of approximation and not as a term of degree, and is intended to account for the inherent deviations in measured or calculated values ​​that one skilled in the art would recognize. As used herein, "about" or "approximately" also includes the stated value and means within an acceptable range of deviation for the particular value as determined by one of ordinary skill in the art taking into account the measurements in question and errors associated with the particular quantity (e.g., limitations of the measurement system). For example, "about" can mean within one or more standard deviations of the stated value, or within ±30%, ±20%, ±10%, or ±5% of the stated value.

[0051] It will be further understood that the terms "comprise," "include," or "have / has," when used in this disclosure, specify the presence of recited features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. The " / " used below may be interpreted as "and" or "or," depending on the context.

[0052] As used herein, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Further, when describing embodiments of the present disclosure, the use of "may" refers to "one or more embodiments of the present disclosure."

[0053] Throughout this disclosure, the expression "at least one selected from a and b" may refer to only a, only b, or both a and b. 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. Throughout this disclosure, the expression "at least one selected from A1 to A3" may refer to only A1, only A2, only A3, both A1 and A2, both A1 and A3, both A2 and A3, all of A1, A2, and A3, or variations thereof.

[0054] As used in this article, the terms "substantially", "about" and similar terms are used as approximate terms and are not used as terms of degree, and are intended to explain the inherent deviation of measured values ​​or calculated values ​​that one of ordinary skill in the art will recognize. In addition, any numerical range set forth herein may be intended to include all subranges of the same numerical precision included in the range of the setting forth. For example, the range of "1.0 to 5.0" is intended to include all subranges between the minimum value 1.0 set forth and the maximum value 5.0 set forth (and including 1.0 and 5.0), for example, all subranges with a minimum value equal to or greater than 1.0 and a maximum value equal to or less than 5.0, such as, for example, 1.2 to 4.7. Any maximum numerical value limit set forth in this article may be intended to include all lower numerical limits included therein, and any minimum numerical value limit set forth in this specification is intended to include all higher numerical limits included therein. In one or more embodiments, the applicant reserves the right to amend this specification (including claims) to explicitly set forth any subrange included in the range explicitly set forth herein.

[0055] As used herein, the terms "combination thereof" and "combinations thereof" may refer to a chemical combination (eg, an alloy or chemical compound), a mixture, or a laminated structure of components.

[0056] According to one or more embodiments, a light emitting device may include: a first electrode; a second electrode that may face the first electrode; and an interlayer that may be disposed between the first electrode and the second electrode and may include an emission layer, wherein the interlayer may include: a first compound represented by Formula 1; and a second compound represented by Formula 2:

[0057] Formula 1

[0058]

[0059] In formula 1,

[0060] At least one selected from Z1 to Z3 may be a group represented by formula TZ:

[0061] Formula TZ

[0062]

[0063] Formula 2

[0064]

[0065] Among them, in formula 1, formula TZ and formula 2,

[0066] Ring CY1 may be unsubstituted or substituted with at least one R 10a Substituted C3-C 30 Carbocyclic groups are either unsubstituted or substituted with at least one R 10a Substituted C1-C 30 heterocyclic group,

[0067] Ring CY2 may be unsubstituted or substituted with at least one R 10a Substituted C3-C 20 Cycloalkyl,

[0068] X1 may be a carbon atom (C) forming a ring CY2, and X1 may be bonded to four different atoms,

[0069] L 11 , L 21 and L 22 Each independently may be a single bond (eg, a single covalent bond), unsubstituted or substituted with at least one R 10a Substituted C3-C 30 Carbocyclic groups are either unsubstituted or substituted with at least one R 10a Substituted C1-C 30 heterocyclic group,

[0070] a11, a21 and a22 may each independently be an integer selected from 1 to 5,

[0071] Y 21 Can be N or C(R 21 ), Y 22 Can be N or C(R 22 ), Y 23 Can be N or C(R 23 ), and selected from Y 21 To Y 23 At least one of may be N,

[0072] Z1 to Z3, R 11 to R 14 and R 21 to R 27 can be independently hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, unsubstituted or replaced by at least one R 10a Substituted C1-C 60 Alkyl, unsubstituted or substituted with at least one R 10a Substituted C2-C 60 Alkenyl, unsubstituted or substituted with at least one R 10a Substituted C2-C 60 Alkynyl, unsubstituted or substituted with at least one R 10a Substituted C1-C 60 Alkoxy, unsubstituted or substituted with at least one R 10a Substituted C3-C 60 Carbocyclic group, unsubstituted or substituted by at least one R 10a Substituted C1-C 60 heterocyclic group, -Si(Q1)(Q2)(Q3), -N(Q1)(Q2), -B(Q1)(Q2), -C(=O)(Q1), -S(=O)2(Q1), or -P(=O)(Q1)(Q2),

[0073] R 26 and L 21 may be optionally bonded to each other via a direct bond (eg, a single covalent bond) or *-O-*' to form an unsubstituted or substituted group consisting of at least one R 10a Substituted C1-C 30 heterocyclic group,

[0074] R 27 and L 21 may be optionally bonded to each other via a direct bond (eg, a single covalent bond) or *-O-*' to form an unsubstituted or substituted group consisting of at least one R 10a Substituted C1-C 30 heterocyclic group,

[0075] R 26 and R 27 may be optionally bonded to each other via a direct bond (eg, a single covalent bond) or *-O-*' to form a C1-C30 heterocyclic group which is unsubstituted or substituted with at least one R10a,

[0076] R 10a Can be:

[0077] deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, or nitro;

[0078] Each unsubstituted or substituted C1-C 60Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl or C1-C 60 Alkoxy: deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, C3-C 60 Carbocyclic group, C1-C 60 Heterocyclic group, C6-C 60 Aryloxy, C6-C 60 Arylthio, C7-C 60 Aralkyl, C2-C 60 Heteroaralkyl, -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 ),-P(=O)(Q 11 )(Q 12 ) or any combination thereof;

[0079] Each unsubstituted or substituted C3-C 60 Carbocyclic group, C1-C 60 Heterocyclic group, C6-C 60 Aryloxy, C6-C 60 Arylthio, C7-C 60 Arylalkyl or C2-C 60 Heteroarylalkyl: deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl, C1-C 60 Alkoxy, C3-C 60 Carbocyclic group, C1-C 60 Heterocyclic group, C6-C 60 Aryloxy, C6-C 60 Arylthio, C7-C 60 Aralkyl, C2-C 60 Heteroaralkyl, -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),-P(=O)(Q 21 )(Q 22 ) or any combination thereof; or

[0080] -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 ) or -P(=O)(Q 31 )(Q 32 ),

[0081] Q1 to Q3, Q 11 To Q 13 , Q 21 To Q 23 and Q 31 To Q 33 Can be independently:

[0082] hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, or nitro, or

[0083] Each unsubstituted or deuterated, -F, cyano, C1-C 60 Alkyl, C1-C 60 C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl, C1-C 60 Alkoxy, C3-C 60 Carbocyclic or C1-C 60 heterocyclic group, and

[0084] * and *' may each independently be a binding site to an adjacent atom.

[0085] The light-emitting device may (for example, simultaneously) include both the first compound and the second compound. In one or more embodiments, the light-emitting device according to one or more embodiments of the present disclosure may be significantly different from a light-emitting device that includes the first compound and does not include the second compound, or a light-emitting device that does not include the first compound and includes the second compound. In one or more embodiments, the light-emitting device according to one or more embodiments may be significantly different from a light-emitting device that does not include the first compound and the second compound.

[0086] The term "interlayer" as used herein refers to a single layer and / or multiple layers disposed between a first electrode and a second electrode of a light-emitting device.

[0087] The interlayer may further include: a hole transport region disposed between the first electrode and the emission layer; and an electron transport region disposed between the emission layer and the second electrode.

[0088] The hole transport region may include a hole injection layer, a hole transport layer, an emission assisting layer, an electron blocking layer, or any combination thereof.

[0089] The electron transport region may include a hole blocking layer, an electron transport layer, an electron injection layer, or any combination thereof. For example, the electron transport region may include a hole blocking layer disposed on the emissive layer, an electron transport layer disposed on the hole blocking layer, and an electron injection layer disposed between the electron transport layer and the second electrode.

[0090] In one or more embodiments, the first compound and the second compound may be in the same (eg, substantially the same) layer of the interlayer. For example, the first compound and the second compound may be mixed in the same (eg, substantially the same) layer of the interlayer.

[0091] In one or more embodiments, the electron transport region may include a first compound and a second compound. For example, the electron transport layer may include a first compound and a second compound. For example, the first compound and the second compound may be mixed in the electron transport layer.

[0092] Throughout one or more embodiments of the present disclosure, the expression “the interlayer and / or the electron transport layer may include a first compound represented by Formula 1 and a second compound represented by Formula 2” may be interpreted to mean “the interlayer and / or the electron transport layer may include i) one species of the first compound represented by Formula 1 and one species of the second compound represented by Formula 2, ii) two or more different species of the first compound represented by Formula 1 and one species of the second compound represented by Formula 2, or iii) one species of the first compound represented by Formula 1 and two or more different species of the second compound represented by Formula 2.”

[0093] In one or more embodiments, the emissive layer can emit blue light. The blue light can be deep blue light. For example, the maximum emission wavelength of the blue light can be in the range of about 430nm to about 475nm, about 440nm to about 475nm, about 450nm to about 475nm, about 430nm to about 470nm, about 440nm to about 470nm, about 450nm to about 470nm, about 430nm to about 465nm, about 440nm to about 465nm, about 450nm to about 465nm, about 430nm to about 460nm, about 440nm to about 460nm or about 450nm to about 460nm. The CIEx coordinate of the blue light can be in the range of about 0.125 to about 0.140 or about 0.130 to about 0.140. The CIEy coordinate of the blue light can be in the range of about 0.120 to about 0.210.

[0094] In one or more embodiments, the interlayer (eg, the emission layer) may include: a hole transport host that may include a group represented by Formula 3, a nitrogen-containing C1-C2-H2O-containing carbonyl group that may include at least one π-electron-deficient carbonyl group; 60 An electron transport host of a heterocyclic group, a sensitizer that may include a transition metal, a dopant that may include at least one cyclic group including boron serving as or used as a ring-forming atom, or any combination thereof, wherein the first compound, the second compound, the hole transport host, the electron transport host, the sensitizer, and the dopant may be different from each other:

[0095] Formula 3

[0096]

[0097] Among them, in formula 3,

[0098] CycloCY 71 and CY 72 Can be independently π-electron-rich C3-C 60 a cyclic group or a pyridyl group,

[0099] X 71 can be a single bond (e.g., a single covalent bond) or a linking group comprising oxygen (O), sulfur (S), nitrogen (N), boron (B), carbon (C), silicon (Si), or any combination thereof, and

[0100] * may be a binding site with any atom in the remaining parts except Formula 3 in the hole transport host.

[0101] The hole transport host may be represented by any one selected from Formula 3-1 to Formula 3-5:

[0102] Formula 3-1

[0103]

[0104] Formula 3-2

[0105]

[0106] Formula 3-3

[0107]

[0108] Formula 3-4

[0109]

[0110] Formula 3-5

[0111]

[0112] Among them, in formula 3-1 to formula 3-5,

[0113] CycloCY 71 To Ring CY 74 Can be independently π-electron-rich C3-C 60 a cyclic group or a pyridyl group,

[0114] X 82 It can be a single bond (e.g., a single covalent bond), O, S, N[(L 82 ) b82 -R 82 ]、B(R 82 )、C(R 82a )(R 82b ) or Si(R 82a )(R 82b ),

[0115] X 83 It can be a single bond (e.g., a single covalent bond), O, S, N[(L 83 ) b83 -R 83 ]、B(R 83 )、C(R 83a )(R 83b ) or Si(R 83a )(R 83b ),

[0116] X 84 Can be O, S, N[(L 84 ) b84 -R 84 ]、B(R 84 )、C(R 84a )(R 84b ) or Si(R 84a )(R 84b ),

[0117] X 85 Can be C or Si,

[0118] L 81 To L 85 Each of the R 10a Substituted π-electron-rich C3-C 60 The cyclic group is either unsubstituted or substituted with at least one R 10a substituted pyridyl, wherein Q4 and Q5 can each independently be the same as described with reference to Q1 (e.g., substantially the same),

[0119] b81 to b85 may each independently be an integer selected from 1 to 5,

[0120] R 71 to R 74 、R 81 to R 85 、R 82a 、R 82b 、R 83a 、R 83b 、R 84a and R 84b Can be independently compared with reference R 11 the same as described (e.g., substantially the same),

[0121] a71 to a74 may each independently be an integer selected from 0 to 20, and

[0122] R 10a It may be the same as (eg, substantially the same as) described in one or more embodiments.

[0123] The hole transport host may be any one selected from compound HTH1 to compound HTH50:

[0124]

[0125]

[0126] The electron transport host can be expressed by Equation 4:

[0127] Formula 4

[0128]

[0129] Among them, in formula 4,

[0130] L 51 To L 53 Each independently may be a single bond (eg, a single covalent bond), unsubstituted or substituted with at least one R 10a Substituted C3-C 60Carbocyclic groups are either unsubstituted or substituted with at least one R 10a Substituted C1-C 60 heterocyclic group,

[0131] b51 to b53 may each independently be an integer selected from 1 to 5,

[0132] X 54 Can be N or C(R 54 ), X 55 Can be N or C(R 55 ), X 56 Can be N or C(R 56 ), and selected from X 54 To X 56 At least one of may be N,

[0133] R 51 to R 56 Can be independently compared with reference R 11 are the same as described (e.g., substantially the same), and

[0134] R 10a It may be the same as (eg, substantially the same as) described in one or more embodiments.

[0135] The electron transport host may be any one selected from compounds ETH1 to ETH102:

[0136]

[0137]

[0138]

[0139]

[0140] The sensitizer may be a compound including a transition metal and a ligand. The transition metal may be platinum (Pt), palladium (Pd), gold (Au), silver (Ag), nickel (Ni) and / or copper (Cu), etc., and the ligand may include a monodentate ligand, a bidentate ligand, a tridentate ligand, a quadridentate ligand or any combination thereof. For example, the sensitizer may be represented by Formula 5:

[0141] Formula 5

[0142]

[0143] Among them, in formula 5,

[0144] M can be platinum (Pt), palladium (Pd), gold (Au), silver (Ag), nickel (Ni) and / or copper (Cu), etc.

[0145] X41 To X 44 may be independently carbon (C) or nitrogen (N),

[0146] T1 can be a single bond (eg, a single covalent bond), O, N (Z 11 ) or C(Z 11 )(Z 12 ),

[0147] CycloCY 41 To Ring CY 44 Can be independently C3-C 60 Carbocyclic or C1-C 60 heterocyclic group,

[0148] Z 11 , Z 12 and R 41 to R 44 Can be independently compared with reference R 11 are the same as described (e.g., substantially the same), and

[0149] a41 to a44 may each independently be an integer selected from 0 to 20.

[0150] The sensitizer may be any one selected from Compound D1 to Compound D10 and Compound PS-1 to Compound PS-3, or may be a compound in which at least one hydrogen in any one selected from Compound D1 to Compound D10 and Compound PS-1 to Compound PS-3 may be substituted with deuterium:

[0151]

[0152] The dopant may be a C8-C1-containing compound in which two or more cyclic groups are fused while sharing a boron atom (B). 60 Polycyclic group compound. The dopant may include at least one nitrogen as a ring atom. The dopant may include a fused ring in which at least one third ring and at least one fourth ring are fused to each other,

[0153] wherein the third ring can be cyclopentanyl, cyclohexanyl, cycloheptanyl, cyclooctyl, cyclopentenyl, cyclohexenyl, cycloheptenyl, cyclooctenyl, adamantyl, norbornenyl, norbornyl, bicyclo[1.1.1]pentanyl, bicyclo[2.1.1]hexanyl, bicyclo[2.2.2]octanyl, phenyl, pyridyl, pyrimidinyl, pyridazinyl, pyrazinyl or triazinyl, and

[0154] The fourth ring can be 1,2-azaboraphenyl, 1,3-azaboraphenyl, 1,4-azaboraphenyl, 1,2-dihydro-1,2-azaboryl, 1,4-oxaboraphenyl, 1,4-thioboraphenyl, or 1,4-dihydroboraphenyl.

[0155] The dopant may include a compound represented by Formula 6-1, a compound represented by Formula 6-2, or any combination thereof:

[0156] Formula 6-1

[0157]

[0158] Formula 6-2

[0159]

[0160] Among them, in formula 6-1 and formula 6-2,

[0161] Ring A 501 To Ring A 504 Can be independently C3-C 60 Carbocyclic or C1-C 60 heterocyclic group,

[0162] Y 505 Can be O, S, N (R 505 )、B(R 505 )、C(R 505a )(R 505b ) or Si(R 505a )(R 505b ),

[0163] Y 506 Can be O, S, N (R 506 )、B(R 506 )、C(R 506a )(R 506b ) or Si(R 506a )(R 506b ),

[0164] Y 507 Can be O, S, N (R 507 )、B(R 507 )、C(R 507a )(R 507b ) or Si(R 507a )(R 507b ),

[0165] Y 508 Can be O, S, N (R 508 )、B(R 508 )、C(R 508a )(R 508b ) or Si(R 508a )(R 508b ),

[0166] Y 51 and Y 52may be each independently B, P(=O) or S(=O),

[0167] R 500a 、R 500b 、R 501 to R 508 、R 505a 、R 505b 、R 506a 、R 506b 、R 507a 、R 507b 、R 508a and R 508b Can be independently compared with reference R 11 are the same as described (e.g., substantially the same), and

[0168] a501 to a504 may each independently be an integer selected from 0 to 20.

[0169] The dopant may be any one selected from compound DFD1 to compound DFD31:

[0170]

[0171]

[0172] According to one or more embodiments, an electronic device may include: a light-emitting device according to one or more embodiments of the present disclosure; and a thin film transistor electrically connected to the light-emitting device. For example, the thin film transistor may include a source electrode and a drain electrode, and the first electrode of the light-emitting device may be electrically connected to the source electrode or the drain electrode. The electronic device may further include a color filter, a color conversion layer, a touch screen layer, a polarizing layer, or any combination thereof. For more details about the electronic device, reference may be made to the description provided in one or more embodiments of the present disclosure.

[0173] According to one or more embodiments, the electronic equipment may include a light-emitting device, wherein the electronic equipment may be one selected from a flat panel display, a curved display, a computer monitor, a medical monitor, a television, a billboard, a lamp for indoor or outdoor lighting and / or signaling (for example, a lamp for indoor or outdoor lighting (for example, an indoor lamp or an outdoor lamp) or a lamp for indoor or outdoor signaling (for example, an indoor signal lamp or an outdoor signal lamp)), a head-up display, a fully transparent or partially transparent display, a flexible display, a rollable display, a foldable display, a retractable display, a laser printer, a telephone, a mobile phone, a tablet personal computer, a tablet mobile computer, a personal digital assistant (PDA), a wearable device, a laptop computer, a digital camera, a video camera, a viewfinder, a microdisplay, a three-dimensional (3D) display, a virtual or augmented reality display, a vehicle, a video wall comprising multiple displays stitched together, a theater or stadium screen, a light therapy device, and a sign, etc.

[0174] First compound

[0175] The first compound can be represented by Formula 1:

[0176] Formula 1

[0177]

[0178] In formula 1,

[0179] At least one selected from Z1 to Z3 may be a group represented by formula TZ:

[0180] Formula TZ

[0181]

[0182] Wherein, in formula 1 and formula TZ,

[0183] Ring CY1, L 11 、a11、R 11 to R 14 and * may each independently be the same as (eg, substantially the same as) described in one or more embodiments.

[0184] In one or more embodiments, Z1 to Z3 may be each independently a group represented by formula TZ. Two selected from Z1 to Z3 may be groups represented by formula TZ. For example, Z1 and Z2 may each independently a group represented by formula TZ, and Z3 may not be a group represented by formula TZ. In one or more embodiments, Z1 and Z3 may each independently a group represented by formula TZ, and Z2 may not be a group represented by formula TZ. In one or more embodiments, Z2 and Z3 may each independently a group represented by formula TZ, and Z1 may not be a group represented by formula TZ. Due to the rotation of the molecular structure, the compound wherein Z1 and Z3 may each independently a group represented by formula TZ and Z2 may not be a group represented by formula TZ may be substantially the same (for example, substantially the same) with the compound wherein Z2 and Z3 may each independently a group represented by formula TZ and Z1 may not be a group represented by formula TZ.

[0185] In one or more embodiments, one selected from Z1 to Z3 may be a group represented by formula TZ. In one or more embodiments, the first compound may include three triazine groups. For example, Z1 may be a group represented by formula TZ, and Z2 and Z3 may not each independently be a group represented by formula TZ. In another example, Z2 may be a group represented by formula TZ, and Z1 and Z3 may not each independently be a group represented by formula TZ. In another example, Z3 may be a group represented by formula TZ, and Z1 and Z2 may not each independently be a group represented by formula TZ. Due to the rotation of the molecular structure, a compound in which Z1 is a group represented by formula TZ and Z2 and Z3 are each independently not a group represented by formula TZ may be substantially the same as a compound in which Z2 is a group represented by formula TZ and Z1 and Z3 are each independently not a group represented by formula TZ.

[0186] In one or more embodiments, Ring CY1 may be unsubstituted or substituted with at least one R 10a Substituted C6-C 30 Aryl, unsubstituted or substituted with at least one R 10a Substituted C1-C 30 Heteroaryl, unsubstituted or substituted with at least one R 10a The substituted non-aromatic fused polycyclic group is either unsubstituted or substituted with at least one R 10a Substituted non-aromatic fused heteropolycyclic group.

[0187] In one or more embodiments, Ring CY1 may be unsubstituted or substituted with at least one R 10a For example, ring CY1 may be unsubstituted or substituted with at least one R 10a Substituted phenyl.

[0188] In one or more embodiments, in Formula 1, The groups represented by The group represented by may be in a meta position relative to ring CY1 (for example, may be located at a meta position), wherein the * in the group may be a binding site with ring CY1 in Formula 1. For example, as a

[0189] The ring atom A1 of the ring CY1 representing the binding site of the group may be different from that which can be formed by The binding site of the group represented by is the ring-forming atom A2 of the ring CY1, and the ring-forming atom A1 may be connected to the ring-forming atom A2 via the ring-forming atom A3 of the ring CY1.

[0190] In one or more embodiments, the first compound may be represented by Formula 1-1:

[0191] Formula 1-1

[0192]

[0193] Among them, in formula 1-1,

[0194] Z1 to Z3, R 11 and R 12 may each independently be the same as (e.g., substantially the same as) described in Formula 1, and

[0195] R1 to R3 can each be independently 10a The same as described (e.g., substantially the same).

[0196] In one or more embodiments, in formula TZ, L 11 can be a single bond (e.g., a single covalent bond), unsubstituted or substituted with at least one R 10a Substituted C6-C 30 Aryl, unsubstituted or substituted with at least one R 10a Substituted C1-C 30 Heteroaryl, unsubstituted or substituted with at least one R 10a The substituted non-aromatic fused polycyclic group is either unsubstituted or substituted with at least one R 10a A substituted non-aromatic fused heteropolycyclic group. a11 may be an integer selected from 1 to 5. a11 may be an integer selected from 1 to 4. a11 may be an integer selected from 1 to 3. a11 may be 1 or 2. a11 may be 1.

[0197] In one or more embodiments, i) if (for example, when) Z1 or Z2 in Formula 1 is a group represented by formula TZ, then L 11 It may be unsubstituted or substituted with at least one R 10a Substituted C3-C 30Carbocyclic groups are either unsubstituted or substituted with at least one R 10a Substituted C1-C 30 heterocyclic group, or ii) if (for example, when) Z3 in Formula 1 is a group represented by the formula TZ, then L 11 It can be a single bond (eg, a single covalent bond).

[0198] In one or more embodiments, L 11 can be a single bond (eg, a single covalent bond) or unsubstituted or replaced by at least one R 10a substituted 6-membered monocyclic group. For example, L 11 can be a single bond (eg, a single covalent bond) or unsubstituted or replaced by at least one R 10a Substituted phenyl.

[0199] In one or more embodiments, L 11 It may be a single bond (eg, a single covalent bond) or a group represented by any one selected from Formula BZ1 to Formula BZ3:

[0200]

[0201] Among them, in formula BZ1 to formula BZ3,

[0202] R 10a , * and *' may each independently be the same as (eg, substantially the same as) described in one or more embodiments, and

[0203] b4 may be an integer selected from 0 to 4.

[0204] In Formula 1 and Formula 1-1, at least one selected from Z1 to Z3 may be a group represented by Formula TZ, and in Formula 1, Formula TZ and Formula 1-1, R 11 to R 14 and Z1 to Z3 may each independently be hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, unsubstituted or replaced by at least one R 10a Substituted C1-C 60 Alkyl, unsubstituted or substituted with at least one R 10a Substituted phenyl, unsubstituted or replaced by at least one R 10a substituted pyridyl or unsubstituted or substituted by at least one R 10a Substituted pyrimidinyl.

[0205] In one or more embodiments, the first compound may be any one selected from Compound A1 to Compound A60:

[0206]

[0207]

[0208]

[0209]

[0210] Second compound

[0211] The second compound can be represented by Formula 2:

[0212] Formula 2

[0213]

[0214] Formula 2 may be the same as (eg, substantially the same as) described in one or more embodiments.

[0215] For example, the second compound may be a compound wherein the formula 2 is

[0216]

[0217] The groups represented by

[0218] In one or more embodiments, the second compound may be distinct (or structurally different) from the compound wherein the group (e.g., The groups represented by A compound in which a group represented by ) is respectively bonded to different atoms (that is, not the same atom) of one ring.

[0219] In one or more embodiments, in Formula 2, Ring CY2 may be unsubstituted or substituted with at least one R 10a Substituted C6-C 10 For example, ring CY2 may be unsubstituted or substituted with at least one R 10a Substituted cyclopentyl, unsubstituted or replaced by at least one R 10a Substituted cyclohexyl, unsubstituted or replaced by at least one R 10a Substituted cycloheptyl, unsubstituted or substituted by at least one R 10a Substituted cyclooctyl, unsubstituted or substituted by at least one R 10a Substituted norbornyl or unsubstituted or replaced by at least one R 10a Substituted adamantyl.

[0220] In one or more embodiments, in Formula 2, L 21 and L 22 may be independently unsubstituted or substituted with at least one R 10a Substituted C6-C 30 Aryl, unsubstituted or substituted with at least one R 10aSubstituted C1-C 30 Heteroaryl, unsubstituted or substituted with at least one R 10a The substituted non-aromatic fused polycyclic group is either unsubstituted or substituted with at least one R 10a Substituted non-aromatic fused heteropolycyclic group.

[0221] a21 may be an integer selected from 1 to 5. a21 may be an integer selected from 1 to 4. a21 may be an integer selected from 1 to 3. a21 may be 1 or 2. a21 may be 1. a22 may be an integer selected from 1 to 5. a22 may be an integer selected from 1 to 4. a22 may be an integer selected from 1 to 3. a22 may be 1 or 2. a22 may be 1.

[0222] In one or more embodiments, selected from L 21 and L 22 At least one of may be unsubstituted or replaced by at least one R 10a For example, selected from L 21 and L 22 At least one of may be unsubstituted or replaced by at least one R 10a Substituted phenyl.

[0223] In one or more embodiments, L 21 and L 22 Each independently may be a group selected from any one of the formulas BZ1 to BZ3:

[0224]

[0225] Among them, in formula BZ1 to formula BZ3,

[0226] R 10a , * and *' may each independently be the same as (eg, substantially the same as) described in one or more embodiments, and

[0227] b4 may be an integer selected from 0 to 4.

[0228] In one or more embodiments, the second compound may be represented by Formula 2-1:

[0229] Formula 2-1

[0230]

[0231] In Formula 2-1, ring CY2, X1, Y 21 To Y 23 、R 24 to R 27 、R 10a and b4 may each independently be the same as (eg, substantially the same as) described in one or more embodiments.

[0232] In one or more embodiments, in Formula 2 and Formula 2-1, Y 21 To Y 23 At least one of may be N. In one or more embodiments, Y 21 Can be N, Y 22 Can be C(R 22 ), and Y 23 Can be C(R 23 ). In one or more embodiments, Y 21 Can be C(R 21 ), Y 22 Can be N, and Y 23 Can be C(R 23 ). In one or more embodiments, Y 21 Can be C(R 21 ), Y 22 Can be C(R 22 ), and Y 23 Can be N.

[0233] In one or more embodiments, in Formula 2 and Formula 2-1, Y 21 To Y 23 Two of them may be N. In one or more embodiments, Y 21 Can be N, Y 22 Can be N, and Y 23 Can be C(R 23 ). In one or more embodiments, Y 21 Can be N, Y 22 Can be C(R 22 ), and Y 23 Can be N. In one or more embodiments, Y 21 Can be C(R 21 ), Y 22 Can be N, and Y 23 Can be N.

[0234] In one or more embodiments, in Formula 2 and Formula 2-1, all Y 21 To Y 23 Can be N.

[0235] In one or more embodiments, in Formula 2 and Formula 2-1, R 21 to R 27 can be independently hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, unsubstituted or replaced by at least one R 10a Substituted C1-C 60 Alkyl, unsubstituted or substituted with at least one R 10aSubstituted phenyl, unsubstituted or replaced by at least one R 10a substituted naphthyl, unsubstituted or substituted with at least one R 10a substituted fluorenyl, unsubstituted or replaced by at least one R 10a substituted carbazolyl, unsubstituted or replaced by at least one R 10a Substituted dibenzofuranyl or unsubstituted or replaced by at least one R 10a Substituted dibenzothienyl.

[0236] In one or more embodiments, in Formula 2, The group represented by may be a group represented by any one selected from Formula 2A to Formula 2H:

[0237] Formula 2A

[0238]

[0239] Formula 2B

[0240]

[0241] Formula 2C

[0242]

[0243] Formula 2D

[0244]

[0245] Formula 2E

[0246]

[0247] Formula 2F

[0248]

[0249] Type 2G

[0250]

[0251] Formula 2H

[0252]

[0253] Wherein, in Formula 2A to Formula 2H,

[0254] R 10a The same as (eg, substantially the same as) described in one or more embodiments, R 26 、R 27 and R 10a The adjacent groups in may not be bonded to each other directly or via *-O-*', b2 may be an integer selected from 0 to 2,

[0255] b3 may be an integer selected from 0 to 3,

[0256] b4 may be an integer selected from 0 to 4, and

[0257] b5 may be an integer selected from 0 to 5.

[0258] The second compound may be any one selected from Compound B1 to Compound B64:

[0259]

[0260]

[0261]

[0262]

[0263]

[0264] In one or more embodiments, in the light-emitting device, the weight ratio of the first compound to the second compound may be 3:7 to 7:3. The weight ratio of the first compound to the second compound in the electron transport layer may be 3:7 to 7:3. For example, the weight ratio of the first compound to the second compound in the electron transport layer may be 5:5.

[0265] According to one or more embodiments, an electronic device may include: a light-emitting device; and a thin film transistor electrically connected to the light-emitting device. For example, the thin film transistor may include a source electrode and a drain electrode, and the first electrode of the light-emitting device may be electrically connected to the source electrode or the drain electrode. The electronic device may further include a color filter, a color conversion layer, a touch screen layer, a polarizing layer, or any combination thereof. For more details about the electronic device, reference is made to the description provided herein.

[0266] According to one or more embodiments, the electronic equipment may include a light-emitting device, wherein the electronic equipment may be one selected from a flat panel display, a curved display, a computer monitor, a medical monitor, a television, a billboard, a lamp for indoor or outdoor lighting and / or signaling (for example, a lamp for indoor or outdoor lighting (for example, an indoor lamp or an outdoor lamp) or a lamp for indoor or outdoor signaling (for example, an indoor signal lamp or an outdoor signal lamp)), a head-up display, a fully transparent or partially transparent display, a flexible display, a rollable display, a foldable display, a retractable display, a laser printer, a telephone, a mobile phone, a tablet personal computer, a tablet mobile computer, a personal digital assistant (PDA), a wearable device, a laptop computer, a digital camera, a video camera, a viewfinder, a microdisplay, a three-dimensional (3D) display, a virtual or augmented reality display, a vehicle, a video wall comprising multiple displays stitched together, a theater or stadium screen, a light therapy device, and a sign, etc.

[0267] For this reason, one or more embodiments of the present disclosure may (for example, simultaneously) include both the first compound and the second compound. By including the first compound, the driving voltage and / or luminous efficiency can be improved (for example, to provide an appropriate driving voltage and / or luminous efficiency), and by including the second compound, the lifespan can be enhanced (for example, to provide an appropriate lifespan). Because the first compound and the second compound do not weaken each other's characteristics (for example, each of the first compound and the second compound does not act or affect each other), compared to if (for example, when) only one selected from the first compound and the second compound is used (when), if (for example, when) the first compound and the second compound are used as a mixture (when), at least one selected from the driving voltage, luminous efficiency and lifespan can be improved (for example, to provide an appropriate driving voltage, luminous efficiency and / or lifespan), and other characteristics may also be excellent or appropriate.

[0268] Figure 1 Description

[0269] Figure 1 1 is a schematic cross-sectional view of a light emitting device 10 according to one or more embodiments. The light emitting device 10 may include a first electrode 110, an interlayer, and a second electrode 150. The interlayer may include a hole transport region 120, an emission layer 130, and an electron transport region 140.

[0270] In the following, reference Figure 1 The structure of the light emitting device 10 and a method of manufacturing the light emitting device 10 according to one or more embodiments are described.

[0271] First electrode 110

[0272] exist Figure 1In the embodiment, the substrate may be further arranged below the first electrode 110 or on the second electrode 150. A glass substrate and / or a plastic substrate may be used as the substrate. The substrate may be a flexible substrate. For example, the substrate may include a plastic having excellent or appropriate heat resistance and durability, such as polyimide, polyethylene terephthalate (PET), polycarbonate, polyethylene naphthalate, polyarylate (PAR), polyetherimide, or any combination thereof.

[0273] The first electrode 110 may be formed or provided by depositing or sputtering a material on a substrate to form or provide the first electrode 110. If (for example, when) the first electrode 110 is an anode, a high work function material that facilitates hole injection may serve as or be used as the material for forming or providing the first electrode 110.

[0274] The first electrode 110 may be a reflective electrode, a semi-transmissive electrode, or a transmissive electrode. If (for example, when) the first electrode 110 is a transmissive electrode, the material forming or providing the first electrode 110 may include indium tin oxide (ITO), indium zinc oxide (IZO), tin oxide (SnO2), zinc oxide (ZnO), or any combination thereof. If (for example, when) the first electrode 110 is a semi-transmissive electrode or a reflective electrode, magnesium (Mg), silver (Ag), aluminum (Al), aluminum-lithium (Al-Li), calcium (Ca), magnesium-indium (Mg-In), magnesium-silver (Mg-Ag), or any combination thereof may serve as or be used as the material forming or providing the first electrode 110.

[0275] The first electrode 110 may have a single-layer structure including a single layer or a multi-layer structure including a plurality of layers. In one or more embodiments, the first electrode 110 may have a triple-layer structure of ITO / Ag / ITO.

[0276] mezzanine

[0277] The interlayer may be disposed (or provided or arranged) on the first electrode 110. The interlayer may include a hole transport region 120, an emission layer 130, and an electron transport region 140.

[0278] The interlayer may include one or more suitable organic materials, metal-containing compounds (such as organometallic compounds) and / or inorganic materials (such as quantum dots), etc.

[0279] In one or more embodiments, the interlayer may include i) at least two emission units sequentially stacked between the first electrode 110 and the second electrode 150 and ii) a charge generation layer disposed (or provided or arranged) between the at least two emission units. If (for example, when) the interlayer includes the emission units and the charge generation layer as described above, the light-emitting device 10 may be a tandem light-emitting device.

[0280] Hole transport region 120

[0281] The hole transport region 120 may have i) a single-layer structure consisting of a single layer that may include a single material, ii) a single-layer structure consisting of a single layer that may include a plurality of materials different from each other, or iii) a multi-layer structure consisting of a plurality of layers that may include a plurality of different materials different from each other.

[0282] The hole transport region 120 may include a hole injection layer, a hole transport layer, an emission assisting layer, an electron blocking layer, or any combination thereof.

[0283] For example, the hole transport region 120 may have a multilayer structure including a hole injection layer / hole transport layer structure, a hole injection layer / hole transport layer / emission assisting layer structure, a hole injection layer / emission assisting layer structure, a hole transport layer / emission assisting layer structure or a hole injection layer / hole transport layer / emission assisting layer structure, wherein the constituent layers of each structure may be stacked sequentially from the first electrode 110.

[0284] The hole transport region 120 may include a compound represented by Formula 201, a compound represented by Formula 202, or any combination thereof:

[0285] Formula 201

[0286]

[0287] Formula 202

[0288]

[0289] Among them, in Equation 201 and Equation 202,

[0290] L 201 To L 204 may be independently unsubstituted or substituted with at least one R 10a Substituted C3-C 60 Carbocyclic groups are either unsubstituted or substituted with at least one R 10a Substituted C1-C 60 heterocyclic group,

[0291] L 205 Can be *-O-*', *-S-*', *-N(Q 201 )-*', unsubstituted or replaced by at least one R 10a Substituted C1-C 20 Alkylene, unsubstituted or substituted with at least one R 10a Substituted C2-C 20 Alkenylene, unsubstituted or substituted with at least one R 10a Substituted C3-C 60 Carbocyclic groups are either unsubstituted or substituted with at least one R 10aSubstituted C1-C 60 heterocyclic group,

[0292] xa1 to xa4 may each independently be an integer selected from 0 to 5,

[0293] xa5 may be an integer selected from 1 to 10,

[0294] R 201 to R 204 and Q 201 may be independently unsubstituted or substituted with at least one R 10a Substituted C3-C 60 Carbocyclic groups are either unsubstituted or substituted with at least one R 10a Substituted C1-C 60 heterocyclic group,

[0295] R 201 and R 202 may be optionally substituted by a single bond (eg, a single covalent bond), unsubstituted or substituted by at least one R 10a Substituted C1-C5 alkylene or unsubstituted or replaced by at least one R 10a The substituted C2-C5 alkenylene groups are linked to each other to form an unsubstituted or substituted R 10a Replaced C8-C 60 a polycyclic group (eg, a carbazolyl group) (eg, compound HT16),

[0296] R 203 and R 204 may be optionally substituted by a single bond (eg, a single covalent bond), unsubstituted or substituted by at least one R 10a Substituted C1-C5 alkylene or unsubstituted or replaced by at least one R 10a The substituted C2-C5 alkenylene groups are linked to each other to form an unsubstituted or substituted R 10a Replaced C8-C 60 polycyclic groups, and

[0297] na1 may be an integer selected from 1 to 4.

[0298] In one or more embodiments, each of Formula 201 and Formula 202 may include at least one selected from the groups represented by Formulas CY201 to CY217:

[0299]

[0300] Among them, in formula CY201 to formula CY217, R 10b and R 10c Can be independently compared with reference R 10a Same as described (eg, substantially the same), ring CY201 To Ring CY 204 Can be independently C3-C 20 Carbocyclic or C1-C 20 heterocyclic group, and at least one hydrogen in Formula CY201 to Formula CY217 may be unsubstituted or replaced by R 10a replace.

[0301] In one or more embodiments, in Formula CY201 to Formula CY217, ring CY 201 To Ring CY 204 Each independently may be phenyl, naphthyl, phenanthryl or anthracenyl.

[0302] In one or more embodiments, each of Formula 201 and Formula 202 may include at least one selected from the groups represented by Formulas CY201 to CY203.

[0303] In another embodiment, Formula 201 may include at least one selected from the group represented by Formula CY201 to Formula CY203 and at least one selected from the group represented by Formula CY204 to Formula CY217.

[0304] In one or more embodiments, in Formula 201, xa1 may be 1, R 201 may be a group represented by one selected from Formula CY201 to Formula CY203, xa2 may be 0, and R 202 It may be a group represented by one selected from Formula CY204 to Formula CY207.

[0305] In one or more embodiments, each of Formula 201 and Formula 202 may not include the groups represented by Formulas CY201 to CY203.

[0306] In one or more embodiments, Formula 201 and Formula 202 may each independently not include the groups represented by Formula CY201 to Formula CY203, and may include at least one selected from the groups represented by Formula CY204 to Formula CY217.

[0307] In one or more embodiments, each of Formula 201 and Formula 202 may not include the groups represented by Formulas CY201 to CY217.

[0308] In one or more embodiments, the hole transport region 120 may include one selected from compounds HT1 to HT46, m-MTDATA, TDATA, 2-TNATA, NPB (NPD), β-NPB, TPD, spiroTPD, spiroNPB, 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), or any combination thereof:

[0309]

[0310]

[0311]

[0312]

[0313]

[0314] The thickness of the hole transport region 120 may be about to about For example, about to about If (for example, when) the hole transport region 120 includes a hole injection layer, a hole transport layer, or any combination thereof, the thickness of the hole injection layer may be about 100 nm. to about For example, about to about And the thickness of the hole transport layer can be about to about For example, about to about If (for example, when) the thicknesses of the hole transport region 120, the hole injection layer, and the hole transport layer are within the above ranges, satisfactory or appropriate hole transport characteristics can be obtained without significantly increasing the driving voltage (for example, satisfactory or appropriate hole transport characteristics can be obtained with an appropriate increase in the driving voltage).

[0315] The emission-assisting layer may function as or be used to increase luminous efficiency (e.g., appropriate luminous efficiency) by compensating the optical resonance distance according to the wavelength of light emitted by the emission layer 130. The electron blocking layer may function as or be used to prevent or reduce electron leakage (or reduce the extent or occurrence of electron leakage) from the emission layer 130 to the hole transport region 120. The material that may be in the hole transport region 120 may be in the emission-assisting layer and the electron blocking layer.

[0316] p-dopant

[0317] In addition to the materials described in one or more embodiments of the present disclosure, the hole transport region 120 may further include a charge generation material for improving conductive properties (e.g., electrical conductivity). The charge generation material may be dispersed or distributed uniformly (e.g., substantially uniformly) or non-uniformly (e.g., substantially non-uniformly) in the hole transport region 120 (e.g., in the form of a single layer composed of the charge generation material).

[0318] The charge generating material may be, for example, a p-dopant.

[0319] For example, the p-dopant may have a lowest unoccupied molecular orbital (LUMO) energy level of about -3.5 eV or less.

[0320] In one or more embodiments, the p-dopant may include a quinone derivative, a cyano group-containing compound, a compound including the element EL1 and the element EL2, or any combination thereof.

[0321] Examples of the quinone derivative may include TCNQ and F4-TCNQ.

[0322] Examples of the cyano group-containing compound may include HAT-CN and a compound represented by Formula 221:

[0323]

[0324] Formula 221

[0325]

[0326] Wherein, in formula 221,

[0327] R 221 to R 223 may be independently unsubstituted or substituted with at least one R 10a Substituted C3-C 60 Carbocyclic groups are either unsubstituted or substituted with at least one R 10a Substituted C1-C 60 heterocyclic group, and

[0328] Selected from R 221 to R 223 At least one of them may be each independently C3-C 60 Carbocyclic or C1-C 60 Heterocyclic group: cyano; -F; -Cl; -Br; -I; C1-C ... 20 or any combination thereof.

[0329] In the compound including the element EL1 and the element EL2, the element EL1 may be a metal, a metalloid, or a combination thereof, and the element EL2 may be a nonmetal, a metalloid, or a combination thereof.

[0330] Examples of metals may include alkali metals (e.g., lithium (Li), sodium (Na), potassium (K), rubidium (Rb), and / or cesium (Cs), etc.); alkaline earth metals (e.g., beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), and / or barium (Ba), etc.); transition metals (e.g., titanium (Ti), zirconium (Zr), hafnium (Hf), vanadium (V), niobium (Nb), tantalum (Ta), chromium (Cr), molybdenum (Mo), tungsten (W), manganese (Mn), technetium (Tc), rhenium (Re), iron (Fe), ruthenium (Ru), osmium (Os), cobalt (Cs), etc.); o), rhodium (Rh), iridium (Ir), nickel (Ni), palladium (Pd), platinum (Pt), copper (Cu), silver (Ag) and / or gold (Au) etc.); late transition metals (e.g., zinc (Zn), indium (In) and / or tin (Sn) etc.); and lanthanide metals (e.g., lanthanum (La), cerium (Ce), praseodymium (Pr), neodymium (Nd), promethium (Pm), samarium (Sm), europium (Eu), gadolinium (Gd), terbium (Tb), dysprosium (Dy), holmium (Ho), erbium (Er), thulium (Tm), ytterbium (Yb) and / or lutetium (Lu) etc.).

[0331] Examples of metalloids may include silicon (Si), antimony (Sb), and tellurium (Te).

[0332] Examples of non-metals may include oxygen (O) and halogens (eg, F, Cl, Br, and / or I, etc.).

[0333] Examples of compounds including element EL1 and element EL2 may include metal oxides, metal halides (e.g., metal fluorides, metal chlorides, metal bromides and / or metal iodides, etc.), metalloid halides (e.g., metalloid fluorides, metalloid chlorides, metalloid bromides and / or metalloid iodides, etc.), metal tellurides, or any combination thereof.

[0334] Examples of metal oxides may include tungsten oxides (e.g., WO, W2O3, WO2, WO3 and / or W2O5, etc.), vanadium oxides (e.g., VO, V2O3, VO2 and / or V2O5, etc.), molybdenum oxides (e.g., MoO, Mo2O3, MoO2, MoO3 and / or Mo2O5, etc.) and / or rhenium oxides (e.g., ReO3, etc.), etc.

[0335] Examples of the metal halide may include alkali metal halides, alkaline earth metal halides, transition metal halides, late transition metal halides, and lanthanide metal halides.

[0336] Examples of the alkali metal halide may include LiF, NaF, KF, RbF, CsF, LiCl, NaCl, KCl, RbCl, CsCl, LiBr, NaBr, KBr, RbBr, CsBr, LiI, NaI, KI, RbI, and CsI.

[0337] Examples of alkaline earth metal halides may include BeF2, MgF2, CaF2, SrF2, BaF2, BeCl2, MgCl2, CaCl2, SrCl2, BaCl2, BeBr2, MgBr2, CaBr2, SrBr2, BaBr2, BeI2, MgI2, CaI2, SrI2, and BaI2.

[0338] Examples of transition metal halides may include titanium halides (e.g., TiF4, TiCl4, TiBr4, and / or TiI4, etc.), zirconium halides (e.g., ZrF4, ZrCl4, ZrBr4, and / or ZrI4, etc.), hafnium halides (e.g., HfF4, HfCl4, HfBr4, and / or HfI4, etc.), vanadium halides (e.g., VF3, VCl3, VBr3, and / or VI3, etc.), niobium halides (e.g., NbF3, NbCl3, NbBr3, and / or NbI3, etc.), tantalum halides (e.g., TaF3, TaCl3, TaBr3, etc.), and tantalum halides. 3 and / or TaI3, etc.), chromium halides (e.g., CrF3, CrCl3, CrBr3 and / or CrI3, etc.), molybdenum halides (e.g., MoF3, MoCl3, MoBr3 and / or MoI3, etc.), tungsten halides (e.g., WF3, WCl3, WBr3 and / or WI3, etc.), manganese halides (e.g., MnF2, MnCl2, MnBr2 and / or MnI2, etc.), technetium halides (e.g., TcF2, TcCl2, TcBr2 and / or TcI2, etc.), rhenium halides (e.g., ReF2, ReCl2, ReBr2 and / or or ReI2, etc.), ferrous halides (e.g., FeF2, FeCl2, FeBr2 and / or FeI2, etc.), ruthenium halides (e.g., RuF2, RuCl2, RuBr2 and / or RuI2, etc.), osmium halides (e.g., OsF2, OsCl2, OsBr2 and / or OsI2, etc.), cobalt halides (e.g., CoF2, CoCl2, CoBr2 and / or CoI2, etc.), rhodium halides (e.g., RhF2, RhCl2, RhBr2 and / or RhI2, etc.), iridium halides (e.g., IrF2, IrCl2, IrBr2, etc.), and / or IrI2, etc.), nickel halides (e.g., NiF2, NiCl2, NiBr2 and / or NiI2, etc.), palladium halides (e.g., PdF2, PdCl2, PdBr2 and / or PdI2, etc.), platinum halides (e.g., PtF2, PtCl2, PtBr2 and / or PtI2, etc.), cuprous halides (e.g., CuF, CuCl, CuBr and / or CuI, etc.), silver halides (e.g., AgF, AgCl, AgBr and / or AgI, etc.) and gold halides (e.g., AuF, AuCl, AuBr and / or AuI, etc.).

[0339] Examples of late transition metal halides may include zinc halides (eg, ZnF2, ZnCl2, ZnBr2, and / or ZnI2, etc.), indium halides (eg, InI3, etc.), and / or tin halides (eg, SnI2, etc.), etc.

[0340] Examples of lanthanide metal halides may include YbF, YbF2, YbF3, SmF3, YbCl, YbCl2, YbCl3, SmCl3, YbBr, YbBr2, YbBr3, SmBr3, YbI, YbI2, YbI3 and / or SmI3, etc.

[0341] Examples of the metalloid halide may include antimony halide (eg, SbCl 5 , etc.).

[0342] Examples of metal tellurides may include alkali metal tellurides (e.g., Li2Te, Na2Te, K2Te, Rb2Te, and / or Cs2Te, etc.), alkaline earth metal tellurides (e.g., BeTe, MgTe, CaTe, SrTe, and / or BaTe, etc.), transition metal tellurides (e.g., TiTe2, ZrTe2, HfTe2, V2Te3, Nb2Te3, Ta2Te3, Cr2Te3, Mo2Te3, W2Te3, MnTe, TcTe, ReTe, F Tellurides (e.g., LaTe, CeTe, PrTe, NdTe, PmTe, EuTe, GdTe, TbTe, DyTe, HoTe, ErTe, TmTe, YbTe and / or LuTe, etc.).

[0343] Emission layer 130

[0344] If (for example, when) the light-emitting device 10 is a full-color light-emitting device, the emission layer 130 may be patterned into a red emission layer, a green emission layer, and / or a blue emission layer according to the sub-pixel. In one or more embodiments, the emission layer 130 may have a stacked structure of two or more layers selected from a red emission layer, a green emission layer, and a blue emission layer, wherein the two or more layers may be in contact with each other or may be separated from each other to emit white light. In one or more embodiments, the emission layer 130 may include two or more materials selected from a red light-emitting material, a green light-emitting material, and a blue light-emitting material, wherein the two or more materials may be mixed with each other in a single layer to emit white light.

[0345] The emission layer 130 may include a host and a dopant. The dopant may include a phosphorescent dopant, a fluorescent dopant, or any combination thereof.

[0346] The amount of the dopant in the emission layer 130 may be about 0.01 parts by weight to about 15 parts by weight relative to 100 parts by weight of the host.

[0347] The emission layer 130 may include quantum dots.

[0348] The emission layer 130 may include a delayed fluorescent material. The delayed fluorescent material may act or function as a host or a dopant in the emission layer 130 .

[0349] The thickness of the emission layer 130 may be about to about and in one or more embodiments, within the range of about to about If (for example, when) the thickness of the emission layer 130 is within the above range, excellent or appropriate light-emitting characteristics can be obtained without significantly increasing the driving voltage (for example, excellent or appropriate light-emitting characteristics can be obtained with an appropriate increase in the driving voltage).

[0350] main body

[0351] The host may include a compound represented by Formula 301:

[0352] Formula 301

[0353] [Ar 301 ] xb11 -[(L 301 ) xb1 -R 301 ] xb21 ,

[0354] Wherein, in formula 301,

[0355] Ar 301 and L 301 may be independently unsubstituted or substituted with at least one R 10a Substituted C3-C 60 Carbocyclic groups are either unsubstituted or substituted with at least one R 10a Substituted C1-C 60 heterocyclic group,

[0356] xb11 can be 1, 2 or 3,

[0357] xb1 may be an integer selected from 0 to 5,

[0358] R 301 It can be hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, unsubstituted or replaced by at least one R 10a Substituted C1-C 60 Alkyl, unsubstituted or substituted with at least one R 10a Substituted C2-C 60 Alkenyl, unsubstituted or substituted with at least one R 10a Substituted C2-C 60 Alkynyl, unsubstituted or substituted with at least one R 10aSubstituted C1-C 60 Alkoxy, unsubstituted or substituted with at least one R 10a Substituted C3-C 60 Carbocyclic group, unsubstituted or substituted by at least one R 10a Substituted C1-C 60 Heterocyclic 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 ) or -P(=O)(Q 301 )(Q 302 ),

[0359] xb21 may be an integer selected from 1 to 5, and

[0360] Q 301 To Q 303 can each independently be the same as (eg, substantially the same as) described with reference to Q1.

[0361] In one or more embodiments, if (for example, when) xb11 in Formula 301 is 2 or greater, then two or more Ar 301 Can be linked to each other via a single bond (eg, a single covalent bond).

[0362] In one or more embodiments, the host may include a compound represented by Formula 301-1, a compound represented by Formula 301-2, or any combination thereof:

[0363] Formula 301-1

[0364]

[0365] Formula 301-2

[0366]

[0367] In Formula 301-1 and Formula 301-2,

[0368] Ring A 301 To Ring A 304 may be independently unsubstituted or substituted with at least one R 10a Substituted C3-C 60 Carbocyclic groups are either unsubstituted or substituted with at least one R 10a Substituted C1-C 60 heterocyclic group,

[0369] X 301 Can be O, S, N[(L 304 ) xb4 -R 304 ]、C(R 304 )(R 305 ) or Si(R 304 )(R 305 ),

[0370] xb22 and xb23 can each independently be 0, 1 or 2,

[0371] L 301 , xb1 and R 301 may each independently be the same as (e.g., substantially the same as) described in one or more embodiments of the present disclosure,

[0372] L 302 To L 304 Can be independently compared with reference L 301 the same as described (e.g., substantially the same),

[0373] xb2 to xb4 may each independently be the same as (e.g., substantially the same as) described with reference to xb1, and

[0374] R 302 to R 305 and R 311 to R 314 Can be independently compared with reference R 301 The same as described (e.g., substantially the same).

[0375] In one or more embodiments, the host may comprise an alkaline earth metal complex, a late transition metal complex, or any combination thereof. In one or more embodiments, the host may comprise a Be complex (e.g., compound H55), a Mg complex, a Zn complex, or any combination thereof.

[0376] In one or more embodiments, the host may include: one selected from Compound H1 to Compound H128; 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(carbazol-9-yl)benzene (mCP); 1,3,5-tri(carbazol-9-yl)benzene (TCP); or any combination thereof:

[0377]

[0378]

[0379]

[0380]

[0381]

[0382]

[0383]

[0384] Phosphorescent dopants

[0385] The phosphorescent dopant may include at least one transition metal acting as or serving as a central metal.

[0386] The phosphorescent dopant may include a monodentate ligand, a bidentate ligand, a tridentate ligand, a tetradentate ligand, a pentadentate ligand, a hexadentate ligand, or any combination thereof.

[0387] The phosphorescent dopant may be electrically neutral.

[0388] In one or more embodiments, the phosphorescent dopant may include an organometallic compound represented by Formula 401:

[0389] Formula 401

[0390] M(L 401 ) xc1 (L 402 ) xc2

[0391] Formula 402

[0392]

[0393] Among them, in formula 401 and formula 402,

[0394] M may be a transition metal (e.g., Ir, Pt, Pd, Os, Ti, Au, Hf, Eu, Tb, Rh, Re, or Tm),

[0395] L 401 may be a ligand represented by formula 402, and xc1 is 1, 2, or 3, wherein, if (for example, when) xc1 is 2 or greater, two or more L 401 may be the same as or different from each other,

[0396] L 402 may be an organic ligand, and xc2 may be 0, 1, 2, 3, or 4, wherein, if (for example, when) xc2 is 2 or greater, two or more L 402 may be the same as or different from each other,

[0397] X401 and X 402 may each independently be nitrogen or carbon,

[0398] Ring A 401 and Ring A 402 Can be independently C3-C 60 Carbocyclic or C1-C 60 heterocyclic group,

[0399] T 401 It can be a single bond (eg, a single covalent bond), *-O-*', *-S-*', *-C(=O)-*', *-N(Q 411 )-*'、*-C(Q 411 )(Q 412 )-*'、*-C(Q 411 )=C(Q 412 )-*'、*-C(Q 411 )=*' or *=C=*',

[0400] X 403 and X 404 can be independently a chemical bond (eg, a covalent bond or a coordination bond), O, S, N (Q 413 )、B(Q 413 )、P(Q 413 )、C(Q 413 )(Q 414 ) or Si(Q 413 )(Q 414 ),

[0401] Q 411 To Q 414 may each independently be the same as (e.g., substantially the same as) described with reference to Q1,

[0402] R 401 and R 402 can be independently hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, unsubstituted or replaced by at least one R 10a Substituted C1-C 20 Alkyl, unsubstituted or substituted with at least one R 10a Substituted C1-C 20 Alkoxy, unsubstituted or substituted with at least one R 10a Substituted C3-C 60 Carbocyclic group, unsubstituted or substituted by at least one R 10a Substituted C1-C 60 Heterocyclic group, -Si(Q 401 )(Q 402 )(Q 403 )、-N(Q 401 )(Q402 )、-B(Q 401 )(Q 402 ),-C(=O)(Q 401 )、-S(=O)2(Q 401 ) or -P(=O)(Q 401 )(Q 402 ),

[0403] Q 401 To Q 403 may each independently be the same as (e.g., substantially the same as) described with reference to Q1,

[0404] xc11 and xc12 may each independently be an integer selected from 0 to 10, and

[0405] * and *' in Formula 402 may each independently be a binding site for M in Formula 401.

[0406] In one or more embodiments, in Formula 402, i) X 401 may be nitrogen, and X 402 Can be carbon, or ii) X 401 and X 402 Each of may be nitrogen.

[0407] In one or more embodiments, if (eg, when) xc1 in equation 401 is 2 or greater, then two or more L 401 The two rings A 401 Optionally, T as a linker 402 connected together, and the two rings A 402 Optionally, T as a linker 403 Connected together (see Compound PD1 to Compound PD4 and Compound PD7). 402 and T 403 Can be independently compared with reference T 401 The same as described (e.g., substantially the same).

[0408] L in Formula 401 402 Can be an organic ligand. In one or more embodiments, L 402 It may include a halogen group, a diketone group (e.g., an acetylacetonate group), a carboxylic acid group (e.g., a picolinate group), a -C(=O) group, an isonitrile group, a -CN group, a phosphorus-containing group (e.g., a phosphine group and / or a phosphite group, etc.), or any combination thereof.

[0409] The phosphorescent dopant may include, for example, one selected from Compound PD1 to Compound PD39 or any combination thereof:

[0410]

[0411]

[0412]

[0413] Fluorescent dopants

[0414] The fluorescent dopant may include an amine-containing compound, a styryl-containing compound, or any combination thereof.

[0415] For example, the fluorescent dopant may include a compound represented by Formula 501:

[0416] Formula 501

[0417]

[0418] Wherein, in formula 501,

[0419] Ar 501 , L 501 To L 503 、R 501 and R 502 may be independently unsubstituted or substituted with at least one R 10a Substituted C3-C 60 Carbocyclic groups are either unsubstituted or substituted with at least one R 10a Substituted C1-C 60 heterocyclic group,

[0420] xd1 to xd3 may each independently be 0, 1, 2 or 3, and

[0421] xd4 can be 1, 2, 3, 4, 5 or 6.

[0422] In one or more embodiments, Ar in Formula 501 501 It may be a condensed ring group in which three or more monocyclic groups are condensed together (for example, anthracenyl, 1,2-triphenylenyl and / or pyrenyl, etc.).

[0423] In one or more embodiments, xd4 in equation 501 may be 2.

[0424] In one or more embodiments, the fluorescent dopant may include: one selected from Compound FD1 to Compound FD37; DPVBi; DPAVBi; or any combination thereof:

[0425]

[0426]

[0427]

[0428] Delayed fluorescence materials

[0429] The emission layer 130 may include a delayed fluorescent material.

[0430] Herein, the delayed fluorescent material may be selected from compounds capable of emitting delayed fluorescence based on a delayed fluorescence emission mechanism.

[0431] Depending on the type or kind of other materials in the emissive layer 130 , the delayed fluorescent material in the emissive layer 130 may act or function as a host or a dopant.

[0432] In one or more embodiments, the difference between the triplet energy level (eV) of the delayed fluorescent material and the singlet energy level (eV) of the delayed fluorescent material may be in the range of about 0 eV to about 0.5 eV. If (for example, when) the difference between the triplet energy level (eV) of the delayed fluorescent material and the singlet energy level (eV) of the delayed fluorescent material is in the above range (when), upconversion of the delayed fluorescent material from the triplet state to the singlet state may occur effectively, and, for example, the light-emitting device 10 may have improved luminous efficiency (for example, appropriate luminous efficiency).

[0433] In one or more embodiments, the delayed fluorescent material may include: i) at least one electron donor (eg, a π-electron-rich C3-C 60 Cyclic groups, such as carbazolyl) and at least one electron acceptor (e.g., sulfoxide, cyano and / or π-electron-deficient nitrogen-containing C1-C 60 heterocyclic group, etc.), ii) including a C8-C ... 60 Polycyclic materials.

[0434] Examples of the delayed fluorescent material may include at least one selected from Compound DF1 to Compound DF14:

[0435]

[0436]

[0437] quantum dots

[0438] The emission layer 130 may include quantum dots.

[0439] As used herein, the term "quantum dot" refers to a crystal of a semiconductor compound. A quantum dot can emit light at one or more appropriate wavelengths depending on the size of the crystal. A quantum dot can also emit light at one or more appropriate wavelengths by adjusting the ratio of the elements that make up the quantum dot.

[0440] The diameter of the quantum dots may, for example, be in the range of about 1 nm to about 10 nm.

[0441] The quantum dots may be synthesized by a wet chemical process, a metal organic chemical vapor deposition (MOCVD) process, a molecular beam epitaxy (MBE) process, and / or any suitable process similar thereto.

[0442] The wet chemical process may be a method comprising mixing a precursor material with an organic solvent and then growing a quantum dot particle crystal. If (for example, when) the quantum dot particle crystal grows, the organic solvent may naturally act or be used as a dispersant coordinated on the surface of the quantum dot particle crystal and control the growth of the quantum dot particle crystal so that the growth of the quantum dot particle crystal can be controlled by a process that is less expensive and easier than vapor deposition methods such as metal organic chemical vapor deposition (MOCVD) or molecular beam epitaxy (MBE).

[0443] The quantum dots may include Group II-VI semiconductor compounds, Group III-V semiconductor compounds, Group III-VI semiconductor compounds, Group I-III-VI semiconductor compounds, Group IV-VI semiconductor compounds, Group IV elements or compounds, or combinations thereof.

[0444] Examples of II-VI semiconductor compounds may include binary compounds such as CdS, CdSe, CdTe, ZnS, ZnSe, ZnTe, ZnO, HgS, HgSe, HgTe, MgSe, and / or MgS; ternary compounds such as CdSeS, CdSeTe, CdSTe, ZnSeS, ZnSeTe, ZnSTe, HgSeS, HgSeTe, HgSTe, CdZnS, Cd ZnSe, CdZnTe, CdHgS, CdHgSe, CdHgTe, HgZnS, HgZnSe, HgZnTe, MgZnSe and / or MgZnS; quaternary compounds, such as CdZnSeS, CdZnSeTe, CdZnSTe, CdHgSeS, CdHgSeTe, CdHgSTe, HgZnSeS, HgZnSeTe and / or HgZnSTe; or combinations thereof.

[0445] Examples of Group III-V semiconductor compounds may include binary compounds such as GaN, GaP, GaAs, GaSb, AlN, AlP, AlAs, AlSb, InN, InP, InAs, and / or InSb; ternary compounds such as GaNPs, GaNAs, GaNSb, GaPAs, GaPSb, AlNPs, AlNAs, AlNSb, AlPAs, AlPSb, InGaP, InNPs, InAlP, InNAs, InNSb, InPAs, and / or InPSb; quaternary compounds such as GaAlNPs, GaAlNAs, GaAlNSb, GaAlPAs, GaAlPSb, GaInNPs, GaInNAs, GaInNSb, GaInPAs, GaInPSb, InAlNPs, InAlNAs, InAlNSb, InAlPAs, and / or InAlPSb; or any combination thereof. In one or more embodiments, the Group III-V semiconductor compound may further include a Group II element. Examples of the Group III-V semiconductor compound further including a Group II element may include InZnP, InGaZnP, and / or InAlZnP, among others.

[0446] Examples of III-VI semiconductor compounds may include: binary compounds, such as GaS, GaSe, Ga2Se3, GaTe, InS, InSe, In2S3, In2Se3 and / or InTe; ternary compounds, such as InGaS3 and / or InGaSe3; or any combination thereof.

[0447] Examples of Group I-III-VI semiconductor compounds may include: ternary compounds, such as AgInS, AgInS2, AgInSe2, AgGaS, AgGaS2, AgGaSe2, CuInS, CuInS2, CuInSe2, CuGaS2, CuGaSe2, CuGaO2, AgGaO2 and / or AgAlO2, etc.; quaternary compounds, such as AgInGaS2 and / or AgInGaSe2, etc.; or any combination thereof.

[0448] Examples of Group IV-VI semiconductor compounds may include: binary compounds, such as SnS, SnSe, SnTe, PbS, PbSe and / or PbTe; ternary compounds, such as SnSeS, SnSeTe, SnSTe, PbSeS, PbSeTe, PbSTe, SnPbS, SnPbSe and / or SnPbTe; quaternary compounds, such as SnPbSSe, SnPbSeTe and / or SnPbSTe; or any combination thereof.

[0449] Examples of Group IV elements or compounds may include: single elements such as Si and / or Ge, etc.; binary compounds such as SiC and / or SiGe, etc.; or any combination thereof.

[0450] Each element in a multi-element compound (such as a binary compound, a ternary compound, and a quaternary compound) may be present in the particle in a uniform (e.g., substantially uniform) concentration or a non-uniform (e.g., substantially non-uniform) concentration. The above formula may refer to the type or species of elements in each compound, and the element ratios in these compounds may be different from each other. For example, AgInGaS2 may be AgIn x Ga 1-x S2 (where x may be a real number satisfying 0 < x < 1).

[0451] In one or more embodiments, the quantum dots may have a single structure in which the concentration of each element in the quantum dots is uniform (e.g., substantially uniform), or a core-shell dual structure. For example, the material in the core and the material in the shell may be different from each other.

[0452] The shell of the quantum dot may act as or be used as a protective layer that can prevent or reduce the chemical denaturation of the core (or can reduce the degree or occurrence of chemical degradation of the core) to maintain semiconductor properties, and / or act as or be used as a charging layer that can impart electrophoretic properties to the quantum dots. The shell may be a single layer or multiple layers. The interface between the core and the shell may have a concentration gradient, where the concentration of the element present in the shell decreases along the direction toward the center of the core.

[0453] Examples of quantum dot shells may be oxides of metals, metalloids, and / or non-metals, semiconductor compounds, or combinations thereof. Examples of metal, metalloid, and / or non-metal oxides may include binary compounds such as SiO2, Al2O3, TiO2, ZnO, MnO, Mn2O3, Mn3O4, CuO, FeO, Fe2O3, Fe3O4, CoO, Co3O4, and / or NiO; ternary compounds such as MgAl2O4, CoFe2O4, NiFe2O4, and / or CoMn2O4; or any combination thereof. Examples of semiconductor compounds may include Group III-VI semiconductor compounds as described in one or more embodiments; Group II-VI semiconductor compounds; Group III-V semiconductor compounds; Group III-VI semiconductor compounds; Group I-III-VI semiconductor compounds; Group IV-VI semiconductor compounds; or any combination thereof. For example, the semiconductor compound may include CdS, CdSe, CdTe, ZnS, ZnSe, ZnTe, ZnSeS, ZnTeS, GaAs, GaP, GaS, GaSe, AgGaS, AgGaS2, GaSb, HgS, HgSe, HgTe, InAs, InP, InGaP, InSb, AlAs, AlP, AlSb, or any combination thereof.

[0454] Each element in a multi-element compound (such as a binary compound and a ternary compound) can be present in the particle in a uniform (e.g., substantially uniform) concentration or a substantially non-uniform (e.g., substantially non-uniform) concentration. The above formula may refer to the type or species of element in each compound, and the ratio of elements in these compounds may vary from one another.

[0455] The full width at half maximum (FWHM) of the emission wavelength spectrum of the quantum dots may be about 45 nm or less, for example, about 40 nm or less, for example, about 30 nm or less, and within these ranges, color purity and / or color reproducibility (e.g., appropriate color purity or color reproducibility) may be increased. In one or more embodiments, because light emitted by the quantum dots is emitted in all (e.g., substantially all) directions, a wide viewing angle (e.g., an appropriate viewing angle) may be improved.

[0456] In one or more embodiments, the quantum dots may be in the form of spherical nanoparticles (e.g., approximately spherical nanoparticles), pyramidal nanoparticles (e.g., approximately pyramidal nanoparticles), multi-armed nanoparticles (e.g., approximately multi-armed nanoparticles), cubic nanoparticles (e.g., approximately cubic nanoparticles), nanotubes (e.g., approximately nanotubes), nanowires (e.g., approximately nanowires), nanofibers (e.g., approximately nanofibers), or nanoplates (e.g., approximately nanoplates).

[0457] By adjusting the size of the quantum dots, the energy band gap can be adjusted, and for example, one or more appropriate wavelengths of light can be obtained in the quantum dot emission layer. For example, by using quantum dots as described above (by using quantum dots of different sizes or by changing the ratio of elements in the quantum dot compound), a light-emitting device that emits light of one or more appropriate wavelengths can be realized. In one or more embodiments, the size of the quantum dots or the ratio of elements in the quantum dot compound can be selected so that red light, green light and / or blue light can be emitted. In one or more embodiments, the quantum dots can be provided to emit white light by a combination of one or more appropriate colors of light.

[0458] Electron transport region 140

[0459] The electron transport region 140 may have i) a single-layer structure consisting of a single layer that may include a single material, ii) a single-layer structure consisting of a single layer that may include a plurality of materials different from each other, or iii) a multi-layer structure consisting of a plurality of layers that may include a plurality of different materials different from each other.

[0460] The electron transport region 140 may include a buffer layer, a hole blocking layer, an electron control layer, an electron transport layer, an electron injection layer, or any combination thereof.

[0461] In one or more embodiments, the electron transport region 140 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 for each structure, the constituent layers are stacked sequentially from the emission layer 130.

[0462] In one or more embodiments, the electron transport region 140 (e.g., a buffer layer, a hole blocking layer, an electron control layer, and / or an electron transport layer in the electron transport region 140) may include a nitrogen-containing C1-C 60 Metal-free compounds of heterocyclic groups.

[0463] For example, the electron transport region 140 may include a compound represented by Formula 601:

[0464] Formula 601

[0465] [Ar 601 ] xe11 -[(L 601 ) xe1 -R 601 ] xe21 ,

[0466] Wherein, in formula 601,

[0467] Ar 601 and L601 may be independently unsubstituted or substituted with at least one R 10a Substituted C3-C 60 Carbocyclic groups are either unsubstituted or substituted with at least one R 10a Substituted C1-C 60 heterocyclic group,

[0468] xe11 can be 1, 2 or 3,

[0469] xe1 can be 0, 1, 2, 3, 4 or 5,

[0470] R 601 It may be unsubstituted or substituted with at least one R 10a Substituted C3-C 60 Carbocyclic group, unsubstituted or substituted by at least one R 10a Substituted C1-C 60 Heterocyclic group, -Si(Q 601 )(Q 602 )(Q 603 ),-C(=O)(Q 601 )、-S(=O)2(Q 601 ) or -P(=O)(Q 601 )(Q 602 ),

[0471] Q 601 To Q 603 may each independently be the same as (e.g., substantially the same as) described with reference to Q1,

[0472] xe21 can be 1, 2, 3, 4, or 5, and

[0473] Selected from Ar 601 , L 601 and R 601 At least one of them may be independently unsubstituted or replaced by at least one R 10a Substituted π-electron-deficient nitrogen-containing C1-C 60 Heterocyclic group.

[0474] In one or more embodiments, if (for example, when) xe11 in Formula 601 is 2 or greater, then two or more Ar 601 Can be linked together via a single bond (eg, a single covalent bond).

[0475] In one or more embodiments, Ar in Formula 601 601 It may be unsubstituted or substituted with at least one R 10a substituted anthracenyl.

[0476] In one or more embodiments, the electron transport region 140 may include a compound represented by Formula 601-1:

[0477] Formula 601-1

[0478]

[0479] Among them, in formula 601-1,

[0480] 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 selected from X 614 To X 616 At least one of may be N,

[0481] L 611 To L 613 Can be independently compared with reference L 601 the same as described (e.g., substantially the same),

[0482] xe611 to xe613 may each independently be the same as (eg, substantially the same as) described with reference to xe1,

[0483] R 611 to R 613 Can be independently compared with reference R 601 are the same as described (e.g., substantially the same), and

[0484] R 614 to R 616 can be independently hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, C1-C 20 Alkyl, C1-C 20 Alkoxy, unsubstituted or substituted with at least one R 10a Substituted C3-C 60 Carbocyclic groups are either unsubstituted or substituted with at least one R 10a Substituted C1-C 60 Heterocyclic group.

[0485] 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.

[0486] The electron transport region 140 may include one selected from Compounds ET1 to ET45, 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline (BCP), 4,7-diphenyl-1,10-phenanthroline (Bphen), Alq3, BAlq, TAZ, NTAZ, or any combination thereof:

[0487]

[0488]

[0489]

[0490] The thickness of the electron transport region 140 may be about to about (For example, about to about If (for example, when) the electron transport region 140 includes a buffer layer, a hole blocking layer, an electron control layer, an electron transport layer, or any combination thereof, the thickness of the buffer layer, the hole blocking layer, or the electron control layer may be independently about to about For example, about to about And the thickness of the electron transport layer can be about to about For example, about to about If (for example, when) the thickness of the buffer layer, the hole blocking layer, the electron control layer, the electron transport layer and / or the electron transport region 140 is within the above range, satisfactory or appropriate electron transport characteristics can be obtained without significantly increasing the driving voltage (for example, satisfactory or appropriate electron transport characteristics can be obtained with an appropriate increase in the driving voltage).

[0491] The electron transport region 140 (eg, the electron transport layer in the electron transport region 140 ) may further include a metal-containing material in addition to the materials as described in one or more embodiments of the present disclosure.

[0492] The metal-containing material may include an alkali metal complex, an alkaline earth metal complex, or any combination thereof. The metal ion of the alkali metal complex may be Li ion, Na ion, K ion, Rb ion, or Cs ion, and the metal ion of the alkaline earth metal complex may be Be ion, Mg ion, Ca ion, Sr ion, or Ba ion. The ligand coordinated to the metal ion of the alkali metal complex or the alkaline earth metal complex may include hydroxyquinoline, hydroxyisoquinoline, hydroxybenzoquinoline, hydroxyacridine, hydroxyphenanthridine, hydroxyphenyloxazole, hydroxyphenylthiazole, hydroxyphenyloxadiazole, hydroxyphenylthiadiazole, hydroxyphenylpyridine, hydroxyphenylbenzimidazole, hydroxyphenylbenzothiazole, bipyridine, phenanthroline, cyclopentadiene, or any combination thereof.

[0493] In one or more embodiments, the metal-containing material may include a Li complex. The Li complex may include, for example, compound ET-D1(Liq) and / or compound ET-D2:

[0494]

[0495] The electron transport region 140 may include an electron injection layer that facilitates the injection of electrons from the second electrode 150. The electron injection layer may be in direct contact with the second electrode 150 (e.g., may be directly on the second electrode 150).

[0496] The electron injection layer may have: i) a single-layer structure composed of a single layer made of a single material, ii) a single-layer structure composed of a single layer including a plurality of different materials, or iii) a multi-layer structure including a plurality of layers, the plurality of layers including a plurality of different materials.

[0497] 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.

[0498] The alkali metal may include Li, Na, K, Rb, Cs, or any combination thereof. The alkaline earth metal may include Mg, Ca, Sr, Ba, or any combination thereof. The rare earth metal may include Sc, Y, Ce, Tb, Yb, Gd, or any combination thereof.

[0499] The alkali metal compound, the alkaline earth metal compound, and the rare earth metal compound may include oxides, halides (e.g., fluorides, chlorides, bromides, and / or iodides, etc.) and / or tellurides of the alkali metal, the alkaline earth metal, and / or the rare earth metal, or any combination thereof.

[0500] The alkali metal compound may include: alkali metal oxides, such as Li2O, Cs2O, and / or K2O; alkali metal halides, such as LiF, NaF, CsF, KF, LiI, NaI, CsI, and / or KI; or any combination thereof. The alkaline earth metal compound may include alkaline earth metal oxides, such as BaO, SrO, CaO, Ba x Sr 1-x O (where x is a real number satisfying 0 < x < 1) and / or Ba x Ca 1-xO (where x is a real number satisfying 0 < x < 1). The rare earth metal compound may include YbF3, ScF3, Sc2O3, Y2O3, Ce2O3, GdF3, TbF3, YbI3, ScI3, TbI3, or any combination thereof. In one or more embodiments, the rare earth metal compound may include lanthanide metal tellurides. Examples of lanthanide metal tellurides may include LaTe, CeTe, PrTe, NdTe, PmTe, SmTe, EuTe, GdTe, TbTe, DyTe, HoTe, ErTe, TmTe, YbTe, LuTe, La2Te3, Ce2Te3, Pr2Te3, Nd2Te3, Pm2Te3, Sm2Te3, Eu2Te3, Gd2Te3, Tb2Te3, Dy2Te3, Ho2Te3, Er2Te3, Tm2Te3, Yb2Te3, and Lu2Te3.

[0501] The alkali metal complex, alkaline earth metal complex, and rare earth metal complex may include i) one of the metal ions selected from alkali metals, alkaline earth metals, and rare earth metals, and ii) ligands bonded to the metal ions, such as hydroxyquinoline, hydroxyisoquinoline, hydroxybenzoquinoline, hydroxyacridine, hydroxyphenanthridine, hydroxyphenyl oxazole, hydroxyphenyl thiazole, hydroxyphenyl oxadiazole, hydroxyphenyl thiadiazole, hydroxyphenyl pyridine, hydroxyphenyl benzimidazole, hydroxyphenyl benzothiazole, bipyridine, phenanthroline, cyclopentadiene, or any combination thereof.

[0502] The electron injection layer may be composed of the following: the alkali metals, alkaline earth metals, rare earth metals, alkali metal-containing compounds, alkaline earth metal-containing compounds, rare earth metal-containing compounds, alkali metal complexes, alkaline earth metal complexes, rare earth metal complexes, or any combination thereof as described above. In one or more embodiments, the electron injection layer may further include an organic material (e.g., a compound represented by Formula 601).

[0503] In one or more embodiments, the electron injection layer may be composed of the following: i) an alkali metal-containing compound (e.g., an alkali metal halide); ii) a) an alkali metal-containing compound (e.g., an alkali metal halide), and b) an alkali metal, alkaline earth metal, rare earth metal, or any combination thereof. In one or more embodiments, the electron injection layer may be a KI:Yb co-deposited layer, a RbI:Yb co-deposited layer, and / or a LiF:Yb co-deposited layer, etc.

[0504] If (e.g., when the electron injection layer further includes an organic material), the alkali metals, alkaline earth metals, rare earth metals, alkali metal-containing compounds, alkaline earth metal-containing compounds, rare earth metal-containing compounds, alkali metal complexes, alkaline earth metal complexes, rare earth metal complexes, or any combination thereof may be uniformly (e.g., substantially uniformly) or non-uniformly (e.g., substantially non-uniformly) dispersed or distributed in a matrix including the organic material.

[0505] The thickness of the electron injection layer may be about to about For example, about to about If (for example, when) the thickness of the electron injection layer is within the range described above, satisfactory or appropriate electron injection characteristics can be obtained without significantly increasing the driving voltage (for example, satisfactory or appropriate electron injection characteristics can be obtained by appropriately increasing the driving voltage).

[0506] Second electrode 150

[0507] The second electrode 150 may be disposed on the electron transport region 140. The second electrode 150 may be a cathode serving as an electron injection electrode, and may serve as or be used as a material forming or providing the second electrode 150, and may use metals, alloys, conductive compounds, or any combination thereof, each having a low work function.

[0508] The second electrode 150 may include Li, Ag, Mg, Al, Al-Li, Ca, Mg-In, Mg-Ag, Yb, Ag-Yb, ITO, IZO, or any combination thereof. The second electrode 150 may be a transmissive electrode, a semi-transmissive electrode, or a reflective electrode.

[0509] The second electrode 150 may have a single-layer structure including a single layer or a multi-layer structure including a plurality of layers.

[0510] Capping layer

[0511] The light-emitting device 10 may further include a capping layer arranged outside the first electrode 110 and / or outside the second electrode 150. The first capping layer may be arranged outside the first electrode 110, and / or the second capping layer may be arranged outside the second electrode 150. For example, the light-emitting device 10 may have a structure in which the first capping layer, the first electrode 110, the interlayer, and the second electrode 150 are stacked in sequence in the order described, a structure in which the first electrode 110, the interlayer, the second electrode 150 and the second capping layer are stacked in sequence in the order described, or a structure in which the first capping layer, the first electrode 110, the interlayer, the second electrode 150 and the second capping layer are stacked in sequence in the order described.

[0512] In one or more embodiments, the capping layer may include a first compound represented by Formula 1 and / or a second compound represented by Formula 2.

[0513] For example, the light emitting device may further include a first capping layer disposed outside the first electrode 110. The first capping layer may include the first compound represented by Formula 1, the second compound represented by Formula 2, or a combination thereof.

[0514] In one or more embodiments, the light emitting device may further include a second capping layer disposed outside the second electrode 150. The second capping layer may include the first compound represented by Formula 1, the second compound represented by Formula 2, or a combination thereof.

[0515] In one or more embodiments, the light-emitting device may further include a first capping layer disposed outside the first electrode 110 and / or a second capping layer disposed outside the second electrode 150. At least one selected from the first capping layer and the second capping layer may include the first compound represented by Formula 1, the second compound represented by Formula 2, or a combination thereof.

[0516] Light generated in the emission layer 130 of the light-emitting device 10 can pass through the first electrode 110, which can be a semi-transmissive electrode or a transmissive electrode, and through the first capping layer to the outside. Light generated in the emission layer 130 of the light-emitting device 10 can pass through the second electrode 150, which can be a semi-transmissive electrode or a transmissive electrode, and through the second capping layer to the outside.

[0517] The first capping layer and the second capping layer can increase the external emission efficiency (e.g., can be increased to have an appropriate external emission efficiency) according to the principle of constructive interference. In one or more embodiments, the light extraction efficiency of the light-emitting device 10 can be increased (e.g., the appropriate light extraction efficiency of the light-emitting device 10), so that the luminous efficiency of the light-emitting device 10 can be increased (e.g., the appropriate luminous efficiency of the light-emitting device 10).

[0518] Each of the first capping layer and the second capping layer may include a material having a refractive index of about 1.2 or higher (at a wavelength of 460 nm).

[0519] The first capping layer and the second capping layer may each independently be an organic capping layer that may include an organic material, an inorganic capping layer that may include an inorganic material, or an organic-inorganic composite capping layer that may include an organic material and an inorganic material.

[0520] 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 amine-containing compound, a porphyrin derivative, a phthalocyanine derivative, a naphthalocyanine derivative, an alkali metal complex, an alkaline earth metal complex, or any combination thereof. The carbocyclic compound, the heterocyclic compound, and the amine-containing compound may optionally be substituted with a substituent comprising O, N, S, Se, Si, F, Cl, Br, I, or any combination thereof. In one or more embodiments, at least one selected from the first capping layer and the second capping layer may each independently include an amine-containing compound.

[0521] In one or more embodiments, at least one selected from the first capping layer and the second capping layer may each independently include a compound represented by Formula 201, a compound represented by Formula 202, or any combination thereof.

[0522] In one or more embodiments, at least one selected from the first capping layer and the second capping layer may each independently include one selected from Compound HT28 to Compound HT33, one selected from Compound CP1 to Compound CP6, β-NPB, or any combination thereof:

[0523]

[0524] membrane

[0525] The electronic device may further include a film. The film may be, for example, an optical member (or light control device) (e.g., a color filter, a color conversion member, a capping layer, a light extraction efficiency enhancing layer, a selective light absorption layer, a polarizing layer, and / or a quantum dot-containing layer), a light-blocking member (e.g., a light reflecting layer and / or a light absorbing layer), and / or a protective member (e.g., an insulating layer and / or a dielectric layer), etc.

[0526] electronic devices

[0527] The light emitting device 10 may be in one or more suitable electronic devices. For example, the electronic device including the light emitting device 10 may be a display device and / or an authentication device.

[0528] In addition to the light-emitting device 10, the electronic device (e.g., a display device) may further include i) a color filter, ii) a color conversion layer, or iii) both a color filter and a color conversion layer. The color filter and / or the color conversion layer may be disposed (or provided or arranged) in at least one direction in which light emitted from the light-emitting device 10 travels. For example, the light emitted from the light-emitting device 10 may be blue light or white light. The light-emitting device 10 may be the same as (e.g., substantially the same as) that described in one or more embodiments. In one or more embodiments, the color conversion layer may include quantum dots. The quantum dots may be, for example, the quantum dots described in one or more embodiments.

[0529] The electronic device may include a first substrate, the first substrate may include a plurality of sub-pixel regions, the color filter may include a plurality of color filter regions respectively corresponding to the plurality of sub-pixel regions, and the color conversion layer may include a plurality of color conversion regions respectively corresponding to the plurality of sub-pixel regions.

[0530] A pixel defining layer may be disposed between the plurality of sub-pixel regions to define each of the plurality of sub-pixel regions.

[0531] The color filter may further include a plurality of color filter regions and a light shielding pattern disposed between the plurality of color filter regions, and the color conversion layer may further include a plurality of color conversion regions and a light shielding pattern disposed between the plurality of color conversion regions.

[0532] The plurality of color filter regions (or color conversion regions) may include a first region emitting a first color of light, a second region emitting a second color of light, and / or a third region emitting a third color of light, wherein the first, second, and / or third color of light may have different maximum emission wavelengths. In one or more embodiments, the first color of light may be red light, the second color of light may be green light, and the third color of light may be blue light. In one or more embodiments, the plurality of color filter regions (or color conversion regions) may include quantum dots. More specifically, 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. A more detailed description of quantum dots is provided herein. The first, second, and / or third regions may each further include a scatterer (e.g., a light scatterer).

[0533] For example, the light emitting device 10 may emit a first light, the first region may absorb the first light to emit 1-1 color light, the second region may absorb the first light to emit 2-1 color light, and the third region may absorb the first light to emit 3-1 color light. In one or more embodiments, the 1-1 color light, the 2-1 color light, and the 3-1 color light may have different maximum emission wavelengths. More specifically, the first light may be blue light, the 1-1 color light may be red light, the 2-1 color light may be green light, and the 3-1 color light may be blue light.

[0534] The electronic device may further include a thin film transistor in addition to the light emitting device 10. The thin film transistor may include a source electrode, a drain electrode, and an active layer, wherein any one selected from the source electrode and the drain electrode may be electrically connected to any one selected from the first electrode and the second electrode of the light emitting device.

[0535] The thin film transistor may further include a gate electrode and / or a gate insulating film, etc.

[0536] The active layer may include crystalline silicon, amorphous silicon, an organic semiconductor, and / or an oxide semiconductor, among others.

[0537] The electronic device may further include a sealing portion that seals the light-emitting device. The sealing portion may be arranged between the color filter and / or the color conversion layer and the light-emitting device. The sealing portion may allow light to be transmitted from the light-emitting device to the outside, and may simultaneously (e.g., substantially simultaneously) prevent or reduce the penetration of air and moisture into the light-emitting device (or may reduce the extent to which the penetration of air and moisture occurs). The sealing portion may be a sealing substrate that may include a transparent glass substrate and / or a plastic substrate. The sealing portion may be a thin film encapsulation layer that may include at least one of an organic layer and an inorganic layer. If (when) the sealing portion is a thin film encapsulation layer, the electronic device may be flexible.

[0538] In addition to the color filter and / or color conversion layer, one or more appropriate functional layers may be further disposed on the sealing portion, depending on the intended use of the electronic device. Examples of functional layers may include a touch screen layer and a polarization layer. The touch screen layer may be a pressure-sensitive touch screen layer, a capacitive touch screen layer, and / or an infrared touch screen layer. The authentication device may be, for example, a biometric authentication device that authenticates an individual using biometric information of a living being (e.g., a fingertip and / or pupil).

[0539] In addition to the light emitting device as described in one or more embodiments, the authentication device may further include a biometric information collector.

[0540] The electronic device can be applied to one or more appropriate displays, light sources, lighting equipment, 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 measuring devices, pulse wave measuring devices, electrocardiogram displays, ultrasound diagnostic devices or endoscope displays), fish finders, one or more appropriate measuring tools, instruments (e.g., instruments for vehicles, aircraft and ships) and / or projectors, etc.

[0541] electronic equipment

[0542] The lighting device 10 may be implemented in any suitable electronic device.

[0543] In one or more embodiments, the electronic equipment including the light-emitting device 10 may be one selected from a flat panel display, a curved display, a computer monitor, a medical monitor, a television, a billboard, a lamp for indoor or outdoor lighting and / or signaling (for example, a lamp for indoor or outdoor lighting (for example, an indoor lamp or an outdoor lamp) or a lamp for indoor or outdoor signaling (for example, an indoor signal lamp or an outdoor signal lamp)), a head-up display, a fully transparent or partially transparent display, a flexible display, a rollable display, a foldable display, a retractable display, a laser printer, a telephone, a mobile phone, a tablet personal computer, a tablet mobile computer, a personal digital assistant (PDA), a wearable device, a laptop computer, a digital camera, a video camera, a viewfinder, a microdisplay, a three-dimensional (3D) display, a virtual or augmented reality display, a vehicle, a video wall comprising multiple displays spliced ​​together, a theater or stadium screen, a light therapy device, and a sign.

[0544] Because the light-emitting device 10 has improved driving voltage, luminous efficiency and / or life effect (e.g., appropriate driving voltage, luminous efficiency, life effect), etc., electronic equipment including the light-emitting device 10 can have characteristics such as high brightness, high resolution and / or low power consumption.

[0545] Figure 2 and Figure 3 Description

[0546] Figure 2 is a schematic cross-sectional view of an electronic device according to one or more embodiments.

[0547] Figure 2 The electronic device may include a substrate 100 , a thin film transistor TFT, a light emitting device, and a sealing portion 300 .

[0548] The substrate 100 may be a flexible substrate, a glass substrate, and / or a metal substrate. A buffer layer 210 may be disposed on the substrate 100. The buffer layer 210 may prevent or reduce the penetration of impurities through the substrate 100 (or may reduce the extent or occurrence of the penetration of impurities) and may provide a flat surface on the substrate 100.

[0549] The thin film transistor TFT may be disposed on the buffer layer 210. The thin film transistor TFT may include an active layer 220, a gate electrode 240, a source electrode 260, and a drain electrode 270.

[0550] The active layer 220 may include an inorganic semiconductor such as silicon or polysilicon, an organic semiconductor, or an oxide semiconductor, and may include a source region, a drain region, and a channel region.

[0551] A gate insulating film 230 for insulating (eg, electrically insulating) the active layer 220 from the gate electrode 240 may be disposed on the active layer 220 , and the gate electrode 240 may be disposed on the gate insulating film 230 .

[0552] An interlayer insulating film 250 may be disposed on the gate electrode 240. The interlayer insulating film 250 may be disposed between the gate electrode 240 and the source electrode 260 and between the gate electrode 240 and the drain electrode 270 to insulate (eg, electrically insulate) from each other.

[0553] The source electrode 260 and the drain electrode 270 may be disposed on the interlayer insulating film 250. The interlayer insulating film 250 and the gate insulating film 230 may be formed or provided to expose the source region and the drain region of the active layer 220, and the source electrode 260 and the drain electrode 270 may be disposed to contact the exposed portions of the source region and the drain region of the active layer 220 (e.g., may be disposed on the exposed portions of the source region and the drain region of the active layer 220).

[0554] The thin film transistor TFT may be electrically connected to the light emitting device to drive the light emitting device and may be covered and protected by the passivation layer 280. The passivation layer 280 may include an inorganic insulating film, an organic insulating film, or any combination thereof. The light emitting device may be provided or arranged on the passivation layer 280. The light emitting device may include a first electrode 110, an interlayer (including an emissive layer 130), and a second electrode 150.

[0555] The first electrode 110 may be disposed on the passivation layer 280. The passivation layer 280 may be disposed to expose a portion of the drain electrode 270 without completely covering the drain electrode 270, and the first electrode 110 may be disposed to be connected to the exposed portion of the drain electrode 270.

[0556] A pixel-defining layer 290 comprising an insulating material may be disposed on the first electrode 110. The pixel-defining layer 290 may expose a specific region of the first electrode 110, and an interlayer may be formed or provided in the exposed region of the first electrode 110. The pixel-defining layer 290 may be a polyimide-based organic film or a polyacrylic-based organic film. In one or more embodiments, at least some layers of the interlayer may extend to the upper portion of the pixel-defining layer 290 and may be disposed in the form of generally available layers.

[0557] The second electrode 150 may be disposed on the interlayer, and the capping layer 170 may be further formed (eg, provided or disposed) on the second electrode 150. The capping layer 170 may be formed (eg, provided or disposed) to cover the second electrode 150.

[0558] The sealing portion 300 may be located (or provided or arranged) on the capping layer 170. The sealing portion 300 may be provided (or provided or arranged) on the light emitting device to protect the light emitting device from moisture and / or oxygen. The sealing portion 300 may include: an inorganic film including silicon nitride (SiN x ), silicon oxide (SiO x ), indium tin oxide, indium zinc oxide or any combination thereof; an organic film comprising polyethylene terephthalate, polyethylene naphthalate, polycarbonate, polyimide, polyethylene sulfonate, polyoxymethylene, polyarylate, hexamethyldisiloxane, an acrylic resin (e.g., polymethyl methacrylate and / or polyacrylic acid, etc.), an epoxy resin (e.g., aliphatic glycidyl ether (AGE), etc.) or any combination thereof; or a combination of an inorganic film and an organic film.

[0559] Figure 3 is a schematic cross-sectional view of an electronic device according to one or more embodiments.

[0560] Figure 3 Electronic devices can be used with Figure 2 The electronic device is the same (e.g., substantially the same) as the electronic device of the present invention, except that the light shielding pattern 500 and the functional area 400 are further arranged on the sealing portion 300. The functional area 400 can be i) a color filter area, ii) a color conversion area, or iii) a combination of a color filter area and a color conversion area. In one or more embodiments, Figure 3 The light-emitting device in the electronic device may be a series light-emitting device.

[0561] Figure 4 Description

[0562] Figure 4 Schematic perspective view of an electronic device 1 including a light-emitting device according to one or more embodiments. The electronic device 1 may be a device that displays moving images or still images, and may be a portable electronic device (such as a mobile phone, a smart phone, a tablet personal computer (PC), a mobile communication terminal, an electronic notebook computer, an e-book, a portable multimedia player (PMP), a navigation or ultra mobile personal computer (UMPC)), and one or more appropriate products (such as a television, a laptop computer, a monitor, a billboard or an Internet of Things (IoT) device). The electronic device 1 may be such a product as described above or a part thereof. In one or more embodiments, the electronic device 1 may be a wearable device (such as a smart watch, a watch phone, a glasses-type or glasses-like display or a head-mounted display (HMD)), or a part of a wearable device. However, the embodiments of the present disclosure are not limited thereto. In one or more embodiments, the electronic device 1 may be a dashboard of a vehicle, a center information display (CID) arranged on a center console or dashboard of a vehicle, an interior rearview mirror display replacing a side mirror of a vehicle, an entertainment display for a rear seat of a vehicle, a display arranged on a backrest of a front seat of a vehicle, a head-up display (HUD) that can be mounted (or provided or arranged) in front of the vehicle or projected onto the front windshield, or a computer-generated hologram augmented reality head-up display (CGH AR HUD).

[0563] For the sake of explanation, Figure 4 One or more embodiments are explained in which the electronic device 1 may be a smartphone.

[0564] The electronic device 1 may include a display area DA and a non-display area NDA outside the display area DA. The electronic device 1 may implement an image through an array of a plurality of pixels two-dimensionally arranged in the display area DA.

[0565] The non-display area NDA may be an area where no image is displayed and may completely surround the display area DA. A driver for supplying electrical signals or power to display elements arranged in the display area DA may be disposed in the non-display area NDA. Pads for electrically connecting electronic components or a printed circuit board may also be disposed in the non-display area NDA.

[0566] In the electronic device 1, the length in the x-axis direction and the length in the y-axis direction may be different from each other. In one or more embodiments, as Figure 4 As shown in FIG, the length in the x-axis direction may be less than the length in the y-axis direction. In one or more embodiments, the length in the x-axis direction may be the same as (e.g., substantially the same as) the length in the y-axis direction. In one or more embodiments, the length in the x-axis direction may be greater than the length in the y-axis direction.

[0567] Figure 5 and Figures 6A to 6C Description

[0568] Figure 5 is a schematic diagram of the exterior of a vehicle 1000 as an electronic device including a light emitting device according to one or more embodiments. Figures 6A to 6C Each is a schematic diagram of the interior of a vehicle 1000 according to one or more embodiments.

[0569] refer to Figure 5 and Figures 6A to 6C The vehicle 1000 may refer to one or more suitable devices for moving an object to be transported (such as a person, object, and / or animal) from a starting point to a destination point. The vehicle 1000 may include a vehicle that travels on roads or tracks, a ship that moves on the ocean or river, and / or an airplane that flies in the air using air, etc.

[0570] Vehicle 1000 can travel on roads or tracks. Vehicle 1000 can move in a specific direction based on the rotation of at least one wheel. In one or more embodiments, vehicle 1000 may include a three-wheeled or four-wheeled vehicle, construction machinery, a two-wheeled vehicle, a prime mover, a bicycle, or a train traveling on tracks.

[0571] The vehicle 1000 may include a vehicle body having an interior and an exterior, and a chassis as a portion other than the vehicle body of the vehicle 1000, in which mechanical equipment required for driving is installed (or provided or arranged). The exterior of the vehicle body may include a front panel, a hood, a roof panel, a rear panel, a trunk, and / or pillars provided at the boundaries between the doors, etc. The chassis of the vehicle 1000 may include a power generation device, a power transmission device, a drive device, a steering device, a braking device, a suspension device, a transmission device, a fuel device, front and rear wheels, and / or left and right wheels, etc.

[0572] The vehicle 1000 may include side windows 1100 , a front window 1200 , side mirrors 1300 , an instrument panel 1400 , a center console 1500 , a passenger seat instrument panel 1600 , and a display device 2 .

[0573] The side window glass 1100 and the front window glass 1200 may be partitioned by pillars disposed between the side window glass 1100 and the front window glass 1200 .

[0574] The side window glass 1100 may be mounted (or provided or arranged) on the side of the vehicle 1000. In one or more embodiments, the side window glass 1100 may be mounted (or provided or arranged) on a door of the vehicle 1000. A plurality of side window glasses 1100 may be provided or arranged and may face each other. In one or more embodiments, the side window glass 1100 may include a first side window glass 1110 and a second side window glass 1120. In one or more embodiments, the first side window glass 1110 may be arranged adjacent to the instrument panel 1400. The second side window glass 1120 may be arranged adjacent to the passenger seat instrument panel 1600.

[0575] In one or more embodiments, the side window glasses 1100 may be spaced apart from each other (e.g., arranged separately) in the x-axis direction or in a direction opposite to the x-axis direction. In one or more embodiments, the first side window glass 1110 and the second side window glass 1120 may be spaced apart from each other (e.g., arranged separately) in the x-axis direction or in a direction opposite to the x-axis direction. In one or more embodiments, the imaginary straight line L connecting the side window glasses 1100 may extend in the x-axis direction or in a direction opposite to the x-axis direction. In one or more embodiments, the imaginary straight line L connecting the first side window glass 1110 and the second side window glass 1120 may extend in the x-axis direction or in a direction opposite to the x-axis direction.

[0576] The front window glass 1200 may be installed (or provided or arranged) at the front of the vehicle 1000. The front window glass 1200 may be arranged between the side window glasses 1100 facing each other.

[0577] Side-view mirror 1300 provides a rear view of vehicle 1000. Side-view mirror 1300 may be mounted (or provided or arranged) on the exterior of the vehicle body. In one or more embodiments, multiple side-view mirrors 1300 may be provided or arranged. Any one selected from multiple side-view mirrors 1300 may be arranged outside first side window glass 1110. Another selected from multiple side-view mirrors 1300 may be arranged outside second side window glass 1120.

[0578] Instrument panel 1400 may be arranged in front of the steering wheel and may include a tachometer, a speedometer, a coolant temperature gauge, a fuel gauge, a turn signal indicator, a high beam indicator, warning lights, a seat belt warning light, an odometer, a speedometer, an automatic shift lever indicator light, a door open warning light, an engine oil warning light, and / or a low fuel warning light.

[0579] The center console 1500 may include a control panel on which a plurality of buttons for adjusting an audio device, an air conditioning device, and a seat heater are provided. The center console 1500 may be arranged on one side of the instrument panel 1400 .

[0580] Passenger-seat instrument panel 1600 may be spaced apart (or arranged separately) from instrument panel 1400, with center console 1500 arranged between instrument panel 1400 and passenger-seat instrument panel 1600. In one or more embodiments, instrument panel 1400 may be arranged to correspond to the driver's seat, and passenger-seat instrument panel 1600 may be arranged to correspond to the passenger seat. In one or more embodiments, instrument panel 1400 may be adjacent to first side window glass 1110, and passenger-seat instrument panel 1600 may be adjacent to second side window glass 1120.

[0581] In one or more embodiments, the display device 2 may include a display panel 3, and the display panel 3 may display an image. The display device 2 may be arranged inside the vehicle 1000. In one or more embodiments, the display device 2 may be arranged between the side windows 1100 facing each other. The display device 2 may be arranged on at least one of the instrument panel 1400, the center console 1500, and the passenger seat instrument panel 1600.

[0582] The display device 2 may include an organic light-emitting display device, an inorganic electroluminescent (EL) display device, and / or a quantum dot display device, etc. Hereinafter, as the display device 2 according to one or more embodiments, an organic light-emitting display device including a light-emitting device according to the present disclosure will be described as an example, but one or more appropriate types or kinds of display devices as described above may be used in one or more embodiments of the present disclosure.

[0583] refer to Figure 6A , the display device 2 may be arranged on the center console 1500. In one or more embodiments, the display device 2 may display navigation information. In one or more embodiments, the display device 2 may display information about audio settings, video settings, or vehicle settings.

[0584] refer to Figure 6B The display device 2 may be disposed on the instrument panel 1400. In one or more embodiments, the instrument panel 1400 may display driving information and the like via the display device 2. For example, the instrument panel 1400 may be digitally implemented. The instrument panel 1400 may digitally display vehicle information and driving information. In one or more embodiments, the tachometer needle and gauge, as well as one or more appropriate warning light icons, may be displayed via digital signals.

[0585] refer to Figure 6C, the display device 2 may be arranged on the passenger seat instrument panel 1600. The display device 2 may be embedded in the passenger seat instrument panel 1600 or arranged on the passenger seat instrument panel 1600. In one or more embodiments, the display device 2 arranged on the passenger seat instrument panel 1600 may display images related to the information displayed on the instrument panel 1400 and / or the information displayed on the center console 1500. In one or more embodiments, the display device 2 arranged on the passenger seat instrument panel 1600 may display information different from the information displayed on the instrument panel 1400 and / or the information displayed on the center console 1500.

[0586] Manufacturing method

[0587] The various layers in the hole transport region 120, the emission layer 130, and the electron transport region 140 may be formed (or provided or arranged) in specific regions by using one or more appropriate methods, such as vacuum deposition, spin coating, casting, Langmuir-Brockett (LB) method, inkjet printing, laser printing, and / or laser induced thermal imaging (LITI).

[0588] If (for example, when) each layer in the hole transport region 120, each layer in the emission layer 130, and each layer in the electron transport region 140 is formed (or provided or arranged) by vacuum deposition, the deposition may be carried out at a deposition temperature of about 100° C. to about 500° C., a ... -8 About 10 -3 Torr vacuum and about to about The deposition is carried out at a deposition rate of 200 nm, which depends on the material in the layer to be formed (or provided or arranged) and the structure of the layer to be formed (or provided or arranged).

[0589] Definition of terms

[0590] As used herein, the term "C3-C 60 The term "carbocyclyl" refers to a cyclic group consisting solely of carbon atoms serving as or acting as ring-forming atoms and having 3 to 60 carbon atoms.

[0591] As used herein, the term "C1-C 60 The term "heterocyclic group" refers to a cyclic group having 1 to 60 carbon atoms and further having a hetero atom other than carbon atoms as or serving as a ring-constituting atom.

[0592] C3-C 60 Carbocyclic and C1-C 60 The heterocyclic groups may each independently be a monocyclic group consisting of one ring or a polycyclic group in which two or more rings are fused to each other. 60 The number of ring-forming atoms of the heterocyclic group can be 3 to 61.

[0593] As used herein, the term "cyclic group" may (for example, simultaneously) include C3-C 60 Carbocyclic and C1-C 60 Both heterocyclic groups.

[0594] As used herein, the term "π-electron-rich C3-C 60 The term "cyclic group" refers to a cyclic group having 3 to 60 carbon atoms and excluding *-N=*' serving as or used as a ring-forming part.

[0595] As used herein, the term "π-electron-deficient nitrogen-containing C1-C 60 The term "heterocyclic group" refers to a heterocyclic group having 1 to 60 carbon atoms and including *-N=*' serving as or used as a ring-forming part.

[0596] In one or more embodiments, C3-C 60 The carbocyclic group may be i) a group T1 or ii) a fused ring group in which two or more groups T1 are fused to each other (e.g., cyclopentadienyl, adamantyl, norbornyl, phenyl, pentalenyl, naphthyl, azulenyl, indacenyl, acenaphthenyl, phenalenyl, phenanthrenyl, anthracenyl, fluoranthenyl, triphenylene, pyrenyl, 1,2-triphenylenyl, perylenyl, pentaphenanyl, heptalenyl, tetracenyl, pyrenyl, hexenyl, pentacenyl, rubenyl, coronenyl, ovalenyl, indenyl, fluorenyl, spirobifluorenyl, benzofluorenyl, indenophenanthrenyl and / or indenoanthryl, etc.), and

[0597] C1-C 60The heterocyclic group may be i) a group T2, ii) a fused ring group in which two or more groups T2 are fused to each other, or iii) a fused ring group in which at least one group T2 and at least one group T1 are fused to each other (e.g., pyrrolyl, thienyl, furyl, indolyl, benzindolyl, naphthoindolyl, isoindolyl, benzisoindolyl, naphthoisoindolyl, benzothiorolyl, benzothiophenyl, benzofuranyl, carbazolyl, dibenzothiorolyl, dibenzothiophenyl, dibenzofuranyl, indenocarbazolyl, indolocarbazolyl, benzofuranocarbazolyl, benzothiophenocarbazolyl, benzothiorolocarbazolyl, benzindololcarbazolyl, benzocarbazolyl, benzonaphthofuranyl, benzonaphthothienyl, benzonaphthothiorolyl, benzofuranodibenzofuran ... dibenzothiophenyl, benzothienodibenzothiophenyl, pyrazolyl, imidazolyl, triazolyl, oxazolyl, isoxazolyl, oxadiazolyl, thiazolyl, isothiazolyl, thiadiazolyl, benzopyrazolyl, benzimidazolyl, benzoxazolyl, benzisoxazolyl, benzothiazolyl, benzisothiazolyl, pyridinyl, pyrimidinyl, pyrazinyl, pyridazinyl, triazinyl, quinolyl, isoquinolyl, benzoquinolinyl quinolinyl, benzoisoquinolinyl, quinoxalinyl, benzoquinoxalinyl, quinazolinyl, benzoquinazolinyl, phenanthrolinyl, cinnolinyl, phthalazinyl, naphthyridinyl, imidazopyridinyl, imidazopyrimidinyl, imidazotriazinyl, imidazopyrazinyl, imidazopyridazinyl, azacarbazolyl, azafluorenyl, azadibenzothiazolyl, azadibenzothiopheneyl, azadibenzofuranyl and / or xanthenyl).

[0598] π-electron-rich C3-C 60 The cyclic group may be i) a group T1, ii) a fused ring group in which two or more groups T1 are fused to each other, iii) a group T3, iv) a fused ring group in which two or more groups T3 are fused to each other, or v) a fused ring group in which at least one group T3 and at least one group T1 are fused to each other (e.g., C3-C 60 (e.g., carbocyclyl, 1H-pyrrolyl, thiolyl, borocyclopentadienyl, 2H-pyrrolyl, 3H-pyrrolyl, thienyl, furyl, indolyl, benzindolyl, naphthoindolyl, isoindolyl, benzisoindolyl, naphthoisoindolyl, benzothiolyl, benzothiolyl, benzofuranyl, carbazolyl, dibenzothiolyl, dibenzothiolyl, dibenzofuranyl, indenocarbazolyl, indolocarbazolyl, benzofuranocarbazolyl, benzothienocarbazolyl, benzothiololocarbazolyl, benzindolcarbazolyl, benzocarbazolyl, benzonaphthofuranyl, benzonaphthothienyl, benzonaphthothiolyl, benzofuranodibenzofuranyl, benzofuranodibenzothienyl and / or benzothienodibenzothienyl, etc.).

[0599] π-electron-deficient nitrogen-containing C1-C 60The heterocyclic group may be i) a group T4, ii) a fused ring group in which two or more groups T4 are fused to each other, iii) a fused ring group in which at least one group T4 and at least one group T1 are fused to each other, iv) a fused ring group in which at least one group T4 and at least one group T3 are fused to each other, or v) a fused ring group in which at least one group T4, at least one group T1 and at least one group T3 are fused to each other (e.g., pyrazolyl, imidazolyl, triazolyl, oxazolyl, isoxazolyl, oxadiazolyl, thiazolyl, isothiazolyl, thiadiazolyl, benzopyrazolyl, , benzimidazolyl, benzoxazolyl, benzisoxazolyl, benzothiazolyl, benzisothiazolyl, pyridyl, pyrimidinyl, pyrazinyl, pyridazinyl, triazinyl, quinolyl, isoquinolyl, benzoquinolyl, benzoisoquinolyl, quinoxalinyl, benzoquinoxalinyl, quinazolinyl, benzoquinazolinyl, phenanthrolinyl, cinnolinyl, phthalazinyl, naphthyridinyl, imidazopyridinyl, imidazopyrimidinyl, imidazotriazinyl, imidazopyrazinyl, imidazopyridazinyl, azacarbazolyl, azafluorenyl, azadibenzothiazolyl, azadibenzothiophene and / or azadibenzofuranyl, etc.).

[0600] The group T1 can be cyclopropane, cyclobutane, cyclopentane, cyclohexane, cycloheptane, cyclooctane, cyclobutenyl, cyclopentenyl, cyclopentadienyl, cyclohexenyl, cyclohexadienyl, cycloheptenyl, adamantyl, norbornane (or bicyclo[2.2.1]heptane), norbornenyl, bicyclo[1.1.1]pentane, bicyclo[2.1.1]hexane, bicyclo[2.2.2]octane and / or phenyl, etc.

[0601] The group T2 can be furyl, thienyl, 1H-pyrrolyl, thiolyl, borocyclopentadienyl, 2H-pyrrolyl, 3H-pyrrolyl, imidazolyl, pyrazolyl, triazolyl, tetrazolyl, oxazolyl, isoxazolyl, oxadiazolyl, thiazolyl, isothiazolyl, thiadiazolyl, azathiolyl, azaborolyl, pyridyl, pyrimidinyl, pyrazinyl, pyridazinyl, triazinyl, tetrazinyl, pyrrolidinyl, imidazolidinyl, dihydropyrrolyl, piperidinyl, tetrahydropyridinyl, dihydropyridinyl, hexahydropyrimidinyl, tetrahydropyrimidinyl, dihydropyrimidinyl, piperazinyl, tetrahydropyrazinyl, dihydropyrazinyl, tetrahydropyridazinyl and / or dihydropyridazinyl, etc.

[0602] The group T3 can be furyl, thienyl, 1H-pyrrolyl, thiolyl and / or borocyclopentadienyl, etc.

[0603] The group T4 can be 2H-pyrrolyl, 3H-pyrrolyl, imidazolyl, pyrazolyl, triazolyl, tetrazolyl, oxazolyl, isoxazolyl, oxadiazolyl, thiazolyl, isothiazolyl, thiadiazolyl, azathiole, azaborolyl, pyridyl, pyrimidinyl, pyrazinyl, pyridazinyl, triazinyl and / or tetrazinyl, etc.

[0604] As used herein, the terms "cyclic group", "C3-C 60 Carbocyclic group", "C1-C 60 Heterocyclic group", "π-electron-rich C3-C 60 Cyclic group" or "π-electron-deficient nitrogen-containing C1-C 60 The term "heterocyclic group" refers to a monovalent group or a polyvalent group (eg, a divalent group, a trivalent group, a tetravalent group, etc.) fused to (eg, bonded together with) a cyclic group, depending on the structure of the formula in which the corresponding term is used.

[0605] In one or more embodiments, the “phenyl group” may be a benzo group, a phenyl group and / or a phenylene group, etc., which can be easily understood by those skilled in the art based on the structure of the formula including the “phenyl group”.

[0606] Unit price C3-C 60 Carbocyclic groups and monovalent C1-C 60 Examples of heterocyclic groups include C3-C 10 Cycloalkyl, C1-C 10 Heterocycloalkyl, C3-C 10 Cycloalkenyl, C1-C 10 Heterocycloalkenyl, C6-C 60 Aryl, C1-C 60 heteroaryl groups, monovalent non-aromatic fused polycyclic groups, and monovalent non-aromatic fused heteropolycyclic groups.

[0607] Divalent C3-C 60 Carbocyclic groups and divalent C1-C 60 Examples of heterocyclic groups include C3-C 10 Cycloalkylene, C1-C 10 Heterocycloalkylene, C3-C 10 Cycloalkenylene, C1-C 10 Heterocycloalkenylene, C6-C 60 Arylene, C1-C 60 heteroarylene group, a divalent non-aromatic fused polycyclic group, and a divalent non-aromatic fused heteropolycyclic group.

[0608] As used herein, the term "C1-C 60 The “alkyl group” refers to a linear or branched aliphatic hydrocarbon monovalent group having 1 to 60 carbon atoms, and examples thereof may include methyl, ethyl, n-propyl, isopropyl, n-butyl, sec-butyl, isobutyl, tert-butyl, n-pentyl, tert-pentyl, neopentyl, isopentyl, sec-pentyl, 3-pentyl, sec-isopentyl, n-hexyl, isohexyl, sec-hexyl, tert-hexyl, n-heptyl, isoheptyl, sec-heptyl, tert-heptyl, n-octyl, isooctyl, sec-octyl, tert-octyl, n-nonyl, isononyl, sec-nonyl, tert-nonyl, n-decyl, isodecyl, sec-decyl, and tert-decyl.

[0609] As used herein, the term "C1-C 60 "Alkylene" refers to a C1-C 60 The alkyl group has two valent groups of the same structure (eg, substantially the same structure).

[0610] As used herein, the term "C2-C 60 "Alkenyl" refers to a C2-C 60 The alkyl group is a monovalent hydrocarbon group having at least one carbon-carbon double bond in the main chain (eg, in the middle) or at a terminal, and examples thereof may include ethenyl, propenyl, and butenyl.

[0611] As used herein, the term "C2-C 60 "Alkenylene" refers to a C2-C 60 The alkenyl group is a divalent group having the same structure (eg, substantially the same structure).

[0612] As used herein, the term "C2-C 60 "Alkynyl" refers to a C2-C 60 The alkyl group is a monovalent hydrocarbon group having at least one carbon-carbon triple bond in the main chain (eg, in the middle) or at a terminal, and examples thereof may include an ethynyl group and a propynyl group.

[0613] As used herein, the term "C2-C 60 "Alkynylidene" refers to a C2-C 60 The alkynyl group is a divalent group having the same structure (eg, substantially the same structure).

[0614] As used herein, the term "C1-C 60 "Alkoxy" refers to 101 (where A 101 C1-C 60 The monovalent group represented by an alkyl group is a methyl group, an ethoxy group, and an isopropyl group.

[0615] As used herein, the term "C3-C 10 The term "cycloalkyl" refers to a monovalent saturated hydrocarbon cyclic group having 3 to 10 carbon atoms, and examples thereof may include cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl, cyclooctyl, adamantyl, norbornyl (or bicyclo[2.2.1]heptyl), bicyclo[1.1.1]pentyl, bicyclo[2.1.1]hexyl and / or bicyclo[2.2.2]octyl, and the like.

[0616] As used herein, the term "C3-C 10 "Cycloalkylene" refers to a C3-C 10 The cycloalkyl group has two groups having the same structure (eg, substantially the same structure).

[0617] As used herein, the term "C1-C 10 The "heterocycloalkyl group" refers to a monovalent cyclic group having 1 to 10 carbon atoms and further including at least one heteroatom other than carbon atoms serving as or used as a ring-constituting atom, and examples thereof may include 1,2,3,4-oxatriazolidinyl, tetrahydrofuranyl, and tetrahydrothienyl.

[0618] As used herein, the term "C1-C 10 "Heterocycloalkylene" refers to a C1-C 10 The heterocycloalkyl group has divalent groups having the same structure (eg, substantially the same structure).

[0619] As used herein, the term "C3-C 10 The "cycloalkenyl group" refers to a monovalent cyclic group having 3 to 10 carbon atoms and at least one carbon-carbon double bond in its ring and having no aromaticity, and examples thereof may include cyclopentenyl, cyclohexenyl, and cycloheptenyl.

[0620] As used herein, the term "C3-C 10 "Cycloalkenylene" refers to a C3-C 10 The cycloalkenyl group is a divalent group having the same structure (eg, substantially the same structure).

[0621] As used herein, the term "C1-C 10 The term "heterocycloalkenyl" refers to a monovalent cyclic group having 1 to 10 carbon atoms, which may further include at least one heteroatom other than carbon atoms to serve as or function as a ring-forming atom, and which may have at least one double bond in its ring. 10 Examples of the heterocycloalkenyl group may include 4,5-dihydro-1,2,3,4-oxatriazolyl, 2,3-dihydrofuranyl, and 2,3-dihydrothienyl.

[0622] As used herein, the term "C1-C 10 "Heterocycloalkenylene" refers to a C1-C 10 The heterocycloalkenyl group is a divalent group having the same structure (eg, substantially the same structure).

[0623] As used herein, the term "C6-C 60 "Aryl" refers to a monovalent radical of a carbocyclic aromatic system having 6 to 60 carbon atoms.

[0624] As used herein, the term "C6-C 60 "Arylene" refers to a divalent radical of a carbocyclic aromatic system having 6 to 60 carbon atoms.

[0625] C6-C 60Examples of the aryl group may include phenyl, pentalenyl, naphthyl, azulenyl, indacenyl, acenaphthenyl, phenalenyl, phenanthrenyl, anthracenyl, fluoranthenyl, triphenylene, pyrenyl, 1,2-triphenylenyl, perylenyl, pentaphenanthrenyl, heptalenyl, tetracenyl, pyrenyl, hexenacenyl, pentacenaphthenyl, rubenyl, coronenyl, and ovacenyl.

[0626] If (for example, when) C6-C 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.

[0627] As used herein, the term "C1-C 60 The term "heteroaryl" refers to a monovalent group of a heterocyclic aromatic system having 1 to 60 carbon atoms and further including at least one heteroatom other than carbon atoms as or serving as a ring-forming atom.

[0628] As used herein, the term "C1-C 60 The term "heteroarylene" refers to a divalent group of a heterocyclic aromatic system having 1 to 60 carbon atoms and further including at least one heteroatom other than carbon atoms as or serving as a ring-forming atom.

[0629] C1-C 60 Examples of heteroaryl groups may include pyridyl, pyrimidinyl, pyrazinyl, pyridazinyl, triazinyl, quinolyl, benzoquinolyl, isoquinolyl, benzoisoquinolyl, quinoxalinyl, benzoquinoxalinyl, quinazolinyl, benzoquinazolinyl, cinnolinyl, phenanthrolinyl, phthalazinyl, and naphthyridinyl.

[0630] If (for example, when) C1-C 60 Heteroaryl and C1-C 60 When the heteroarylene group each includes two or more rings, the two or more rings may be fused to each other.

[0631] 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, only carbon atoms (e.g., 8 to 60 carbon atoms) serving as or used as ring atoms, and having no aromaticity in its molecular structure (e.g., not aromatic if considered as a whole) if (e.g., when) considered as a whole. Examples of monovalent non-aromatic fused polycyclic groups may include indenyl, fluorenyl, spirobifluorenyl, benzofluorenyl, indenophenanthryl, and indenoanthryl.

[0632] The term "divalent non-aromatic fused polycyclic group" as used herein refers to a divalent group having the same structure (eg, substantially the same structure) as a monovalent non-aromatic fused polycyclic group.

[0633] The term "monovalent non-aromatic fused heteropolycyclic group" as used herein refers to a monovalent group having two or more rings fused to each other, which may further include at least one heteroatom in addition to carbon atoms (e.g., 1 to 60 carbon atoms) as or serving as a ring-constituting atom, and which has no aromaticity in its molecular structure if (e.g., when) considered as a whole (e.g., is not aromatic if considered as a whole). Examples of the monovalent non-aromatic fused heteropolycyclic group may include pyrrolyl, thienyl, furyl, indolyl, benzindolyl, naphthoindolyl, isoindolyl, benzisoindolyl, naphthoisoindolyl, benzothiorolyl, benzothiophenyl, benzofuranyl, carbazolyl, dibenzothiorolyl, dibenzothiophenyl, dibenzofuranyl, azacarbazolyl, azafluorenyl, azadibenzothiorolyl, azadibenzothiophenyl, azadibenzofuranyl, pyrazolyl, imidazolyl, triazolyl, tetrazolyl, oxazolyl, isoxazolyl, thiazolyl, isothiazolyl, oxadiazolyl, thiadiazolyl , benzopyrazolyl, benzimidazolyl, benzoxazolyl, benzothiazolyl, benzoxadiazolyl, benzothiadiazolyl, imidazopyridinyl, imidazopyrimidinyl, imidazotriazine, imidazopyrazinyl, imidazopyridazinyl, indenocarbazolyl, indolecarbazolyl, benzofuranocarbazolyl, benzothienocarbazolyl, benzothiorrolocarbazolyl, benzoindolecarbazolyl, benzocarbazolyl, benzonaphthofuranyl, benzonaphthothiophene, benzonaphthothiorryl, benzofuranodibenzofuranyl, benzofuranodibenzothiophene and benzothienodibenzothiophene.

[0634] The term "divalent non-aromatic fused heteropolycyclic group" as used herein refers to a divalent group having the same structure (eg, substantially the same structure) as a monovalent non-aromatic fused heteropolycyclic group.

[0635] As used herein, the term "C6-C 60 "Aryloxy" can be -OA 102 (where A 102 Can be C6-C 60 aryl).

[0636] As used herein, the term "C6-C 60 "Arylthio" can be -SA 103 (where A 103 Can be C6-C 60 aryl).

[0637] As used herein, the term "C7-C 60 Aralkyl" can be -A 104 A 105 (where A 104 Can be C1-C 54 Alkylene, and A 105 C6-C 59 aryl).

[0638] As used herein, the term "C2-C 60 "Heteroaralkyl" can be -A 106 A 107 (where A 106 Can be C1-C 59 Alkylene, and A 107 C1-C 59 heteroaryl).

[0639] As used herein, the term "C3-C 60 "Carbocyclic" includes C3-C 50 Carbocyclic, C3-C 40 Carbocyclic, C3-C 30 Carbocyclic, C3-C 20 Carbocyclic or C3-C 10 Carbocyclic group;

[0640] The term "C1-C 60 "Heterocyclic" includes C1-C 50 Heterocyclic group, C1-C 40 Heterocyclic group, C1-C 30 Heterocyclic group, C1-C 20 Heterocyclic or C1-C 10 heterocyclic group;

[0641] The term "C1-C 60 "Alkyl" includes C1-C 50 Alkyl, C1-C 30 Alkyl, C1-C 20 Alkyl or C1-C 10 alkyl;

[0642] The term "C2-C 60 "Alkenyl" includes C2-C 30 Alkenyl, C2-C 20 Alkenyl or C2-C 10 alkenyl;

[0643] The term "C2-C 60 "Alkynyl" includes C2-C 30 Alkynyl, C2-C 20 Alkynyl or C2-C 10 Alkynyl;

[0644] The term "C1-C 60 "Alkoxy" includes C1-C 30 Alkoxy, C1-C 20 Alkoxy or C1-C 10 alkoxy;

[0645] The term "C6-C 60"Aryl" includes C6-C 50 Aryl, C6-C 40 Aryl, C6-C 30 Aryl, C6-C 20 Aryl or C6-C 15 aryl;

[0646] The term "C1-C 60 "Heteroaryl" includes C1-C 50 Heteroaryl, C1-C 40 Heteroaryl, C1-C 30 Heteroaryl, C1-C 20 Heteroaryl or C1-C 10 heteroaryl;

[0647] "Monovalent non-aromatic fused polycyclic group" includes C8-C 60 Monovalent non-aromatic fused polycyclic group, C8-C 50 Monovalent non-aromatic fused polycyclic group, C8-C 40 Monovalent non-aromatic fused polycyclic group, C8-C 30 Monovalent non-aromatic fused polycyclic group or C8-C 20 a monovalent non-aromatic fused polycyclic group;

[0648] The term "monovalent non-aromatic fused heteropolycyclic group" includes C1-C 60 Monovalent non-aromatic fused heteropolycyclic group, C1-C 50 Monovalent non-aromatic fused heteropolycyclic group, C1-C 40 Monovalent non-aromatic fused heteropolycyclic group, C1-C 30 Monovalent non-aromatic fused heteropolycyclic group or C1-C 20 a monovalent non-aromatic fused heteropolycyclic group;

[0649] The term "C6-C 60 "Aryloxy" includes C6-C 50 Aryloxy, C6-C 40 Aryloxy, C6-C 30 Aryloxy, C6-C 20 Aryloxy or C6-C 15 aryloxy;

[0650] The term "C6-C 60 "Arylthio" includes C6-C 50 Arylthio, C6-C 40 Arylthio, C6-C 30 Arylthio, C6-C 20 Arylthio or C6-C 15 arylthio;

[0651] The term "C7-C 60Aralkyl" includes C7-C 50 Aralkyl, C7-C 40 Aralkyl, C7-C 30 Aralkyl, C7-C 20 Arylalkyl or C7-C 15 aralkyl; and

[0652] The term "C2-C 60 "Heteroaralkyl" includes C2-C 50 Heteroarylalkyl, C2-C 40 Heteroarylalkyl, C2-C 30 Heteroarylalkyl, C2-C 20 Heteroarylalkyl or C2-C 15 Heteroaralkyl.

[0653] As used herein, the term "R 10a " can be:

[0654] deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, or nitro;

[0655] Each unsubstituted or substituted C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl or C1-C 60 Alkoxy: deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, C3-C 60 Carbocyclic group, C1-C 60 Heterocyclic group, C6-C 60 Aryloxy, C6-C 60 Arylthio, C7-C 60 Aralkyl, C2-C 60 Heteroaralkyl, -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 ),-P(=O)(Q 11 )(Q 12 ) or any combination thereof;

[0656] Each unsubstituted or substituted C3-C 60 Carbocyclic group, C1-C 60 Heterocyclic group, C6-C 60 Aryloxy, C6-C 60 Arylthio, C7-C60 Arylalkyl or C2-C 60 Heteroarylalkyl: deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl, C1-C 60 Alkoxy, C3-C 60 Carbocyclic group, C1-C 60 Heterocyclic group, C6-C 60 Aryloxy, C6-C 60 Arylthio, C7-C 60 Aralkyl, C2-C 60 Heteroaralkyl, -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 ),-P(=O)(Q 21 )(Q 22 ) or any combination thereof; or

[0657] -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 ) or -P(=O)(Q 31 )(Q 32 ).

[0658] Q1 to Q3, Q 11 To Q 13 , Q 21 To Q 23 and Q 31 To Q 33 can be independently: hydrogen; deuterium; -F; -Cl; -Br; -I; hydroxyl; cyano; nitro; or each unsubstituted or substituted by deuterium, -F, cyano, C1-C 60 Alkyl, C1-C 60 C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C60 Alkynyl, C1-C 60 Alkoxy, C3-C 60 Carbocyclic or C1-C 60 Heterocyclic group.

[0659] As used herein, the term "heteroatom" refers to any atom other than carbon and hydrogen atoms. Examples of heteroatoms may include O, S, N, P, Si, B, Ge, Se, or any combination thereof.

[0660] The term “transition metal” as used herein includes hafnium (Hf), tantalum (Ta), tungsten (W), rhenium (Re), osmium (Os), iridium (Ir), platinum (Pt) and / or gold (Au), among others.

[0661] As used herein, the term "D" refers to deuterium, the term "Ph" refers to phenyl, the term "Me" refers to methyl, the term "Et" refers to ethyl, the terms "tert-Bu", " t Bu" or "Bu t ” refers to tert-butyl, and the term “OMe” refers to methoxy.

[0662] As used herein, the term "biphenyl" refers to a "phenyl group substituted by a phenyl group". In one or more embodiments, the "biphenyl" may be a C6-C 60 The aryl group serves as or is used as a substituted phenyl group.

[0663] The term "terphenyl" as used herein refers to a "phenyl group substituted by a biphenyl group". The term "terphenyl" as used herein may refer to i) a phenyl group substituted by a C6-C 60 Aryl substituted C6-C 60 aryl, and ii) substituted phenyl, wherein there are two substituents and each substituent is C6-C 60 Aryl.

[0664] Unless otherwise defined, * and *' as used herein each refer to a binding site to an adjacent atom in the corresponding formula or moiety.

[0665] The terms "x-axis," "y-axis," and "z-axis" as used herein are not limited to the three axes in an orthogonal coordinate system and may be interpreted in a broader sense than the three axes in the aforementioned orthogonal coordinate system. For example, the x-axis, y-axis, and z-axis may describe axes that are orthogonal to each other, or may describe axes in different directions that are not orthogonal to each other.

[0666] In the specification, “an integer selected from 0 to 20” refers to an integer selected from 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19 and 20. The description of the above numerical range is also applicable to any other numerical range appearing in the specification, for example, an integer selected from 0 and 1, an integer selected from 0 to 2, an integer selected from 0 to 3, an integer selected from 0 to 4, an integer selected from 0 to 5, an integer selected from 0 to 6, an integer selected from 0 to 7, an integer selected from 0 to 8, an integer selected from 0 to 9, an integer selected from 0 to 10, an integer selected from 0 to 11, an integer selected from 0 to 12, an integer selected from 0 to 13, an integer selected from 0 to 14, an integer selected from 0 to 15, an integer selected from 0 to 16, an integer selected from 0 to 17, an integer selected from 0 to 18 and an integer selected from 0 to 19, etc.

[0667] Hereinafter, a light emitting device according to one or more embodiments will be described in more detail with reference to the following Synthesis Examples and Examples.

[0668] Synthesis Example 1-1 (Synthesis of Compound A5)

[0669]

[0670] Synthesis of compound A5

[0671] Intermediate A5-1 (4.99 g), tetrakis(triphenylphosphine)palladium(0)(Pd(PPh3)4) (0.56 g), potassium carbonate (K2CO3) (3.45 g) and (3-(4-methyl-6-phenyl-1,3,5-triazine-2-yl)phenyl)boric acid (3.20 g) were dissolved in tetrahydrofuran / water (THF / H2O) (100 mL / 25 mL), and then stirred at 60°C for 12 hours. The reaction temperature was lowered to room temperature, and the reaction was terminated by using water. Then, it was subjected to three extraction treatments by using diethyl ether. The organic layer extracted therefrom was dried by using anhydrous magnesium sulfate and distilled under reduced pressure, and the residue obtained was separated and purified by column chromatography to obtain compound A5 (4.97 g, yield: 70%).

[0672] Synthesis Example 1-2 (Synthesis of Compound A34)

[0673]

[0674] Synthesis of intermediate A34-2

[0675] Intermediate A34-1 (5.93 g), Pd (PPh 3 ) 4 (0.56 g), K 2 CO 3 (3.45 g) and pyridin-3-yl-boric acid (2.67 g) were dissolved in THF / H 2 O (100 mL / 25 mL) and then stirred at 60° C. for 12 hours. The reaction temperature was lowered to room temperature and the reaction was terminated using water. Then, three extractions were performed using ether. The organic layer extracted therefrom was dried over anhydrous magnesium sulfate and distilled under reduced pressure, and the residue obtained was separated and purified by column chromatography to obtain intermediate A34-2 (5.00 g, yield: 92%).

[0676] Synthesis of intermediate A34-3

[0677] Intermediate A34-2 (5.00 g), bis(triphenylphosphine)palladium(II) dichloride (Pd(PPh3)2Cl2) (0.35 g), bis(pinacolato)diboron ((Bpin)2) (5.06 g) and potassium acetate (KOAc) (4.9 g) were dissolved in toluene (60 mL), and then stirred at 100°C for 12 hours. The reaction temperature was lowered to room temperature, and the reaction was terminated by using water. Then, it was subjected to three extraction treatments by using diethyl ether. The organic layer extracted therefrom was dried by using anhydrous magnesium sulfate and distilled under reduced pressure, and the residue obtained was separated and purified by column chromatography to obtain intermediate A34-3 (4.46 g, yield: 64%).

[0678] Synthesis of compound A34

[0679] Intermediate A34-3 (6.10 g), Pd (PPh 3) 4 (0.56 g), K 2 CO 3 (3.45 g) and 2-chloro-4,6-diisopropyl-1,3,5-triazine (2.20 g) were dissolved in THF / H 2 O (100 mL / 25 mL) and then stirred at 60 ° C for 12 hours. The reaction temperature was lowered to room temperature and the reaction was terminated by using water. Then, three extraction processes were carried out by using ether. The organic layer extracted therefrom was dried over anhydrous magnesium sulfate and distilled under reduced pressure, and the residue obtained was separated and purified by column chromatography to obtain compound A34 (5.00 g, yield: 70%).

[0680] Synthesis Example 1-3 (Synthesis of Compound A39)

[0681]

[0682] Synthesis of intermediate A39-2

[0683] Intermediate A39-1 (3.88 g), Pd (PPh 3 ) 2 Cl 2 (0.35 g), bis (pinacolato) diboron (5.06 g) and KOAc (4.9 g) were dissolved in toluene (60 mL) and then stirred at 100° C. for 12 hours. The reaction temperature was lowered to room temperature and the reaction was terminated with water. Then, three extractions were performed using ether. The organic layer extracted therefrom was dried over anhydrous magnesium sulfate and distilled under reduced pressure, and the residue obtained was separated and purified by column chromatography to obtain intermediate A39-2 (3.48 g, yield: 80%).

[0684] Synthesis of compound A39

[0685] Intermediate A39-2 (4.35 g), Pd (PPh 3 ) 4 (0.56 g), K 2 CO 3 (3.45 g) and 2-chloro-4- (3- (4,6-dimethyl-1,3,5-triazine-2-yl) phenyl) -6-methyl-1,3,5-triazine (3.440 g) were dissolved in THF / H 2 O (100 mL / 25 mL) and then stirred at 60 ° C for 12 hours. The reaction temperature was lowered to room temperature and the reaction was terminated by using water. Then, it was subjected to three extraction treatments by using diethyl ether. The organic layer extracted therefrom was dried by using anhydrous magnesium sulfate and distilled under reduced pressure, and the residue obtained was separated and purified by column chromatography to obtain compound A39 (5.00 g, yield: 70%).

[0686] Synthesis Example 1-4 (Synthesis of Compound A53)

[0687]

[0688] Synthesis of intermediate A53-2

[0689] Intermediate A53-1 (5.34 g), Pd (PPh 3 ) 4 (0.56 g), K 2 CO 3 (3.45 g) and (5-chloro-1,3-phenylene) diboronic acid (2.00 g) were dissolved in THF / H 2 O (100 mL / 25 mL) and then stirred at 60 ° C for 12 hours. The reaction temperature was lowered to room temperature and the reaction was terminated by using water. Then, three extraction processes were carried out by using ether. The organic layer extracted therefrom was dried over anhydrous magnesium sulfate and distilled under reduced pressure, and the residue obtained was separated and purified by column chromatography to obtain intermediate A53-2 (5.00 g, yield: 70%).

[0690] Synthesis of intermediate A53-3

[0691] Intermediate A53-2 (5.75 g), Pd (PPh 3 ) 2 Cl 2 (0.35 g), bis (pinacolato) diboron (5.06 g) and KOAc (4.9 g) were dissolved in toluene (60 mL) and then stirred at 100 ° C for 12 hours. The reaction temperature was lowered to room temperature and the reaction was terminated by using water. Then, it was subjected to three extraction treatments using ether. The organic layer extracted therefrom was dried over anhydrous magnesium sulfate and distilled under reduced pressure, and the residue obtained was separated and purified by column chromatography to obtain intermediate A53-3 (4.88 g, yield: 80%).

[0692] Synthesis of compound A53

[0693] Intermediate A53-3 (6.66 g), Pd (PPh 3) 4 (0.56 g), K 2 CO 3 (3.45 g) and 2- (tert-butyl) -4- chloro-6-phenyl -1,3,5- triazine (2.48 g) were dissolved in THF / H 2 O (100 mL / 25 mL) and then stirred at 60 ° C for 12 hours. The reaction temperature was lowered to room temperature and the reaction was terminated by using water. Then, three extraction processes were carried out by using ether. The organic layer extracted therefrom was dried over anhydrous magnesium sulfate and distilled under reduced pressure, and the residue obtained was separated and purified by column chromatography to obtain compound A53 (5.00 g, yield: 70%).

[0694] Synthesis Example 1-5 (Synthesis of Compound A58)

[0695]

[0696] Synthesis of intermediate A58-2

[0697] Intermediate A58-1 (1.84 g), Pd (PPh 3 ) 4 (0.56 g), K 2 CO 3 (3.45 g) and (4-cyanophenyl) boronic acid (1.47 g) were dissolved in THF / H 2 O (100 mL / 25 mL) and then stirred at 60 ° C for 12 hours. The reaction temperature was lowered to room temperature and the reaction was terminated by using water. Then, three extractions were carried out using ether. The organic layer extracted therefrom was dried over anhydrous magnesium sulfate and distilled under reduced pressure, and the residue obtained was separated and purified by column chromatography to obtain intermediate A58-2 (2.00 g, yield: 70%).

[0698] Synthesis of intermediate A58-3

[0699] Intermediate A58-2 (2.51 g), Pd (PPh 3 ) 4 (0.56 g), K 2 CO 3 (3.45 g) and (3-chlorophenyl) boronic acid (1.56 g) were dissolved in THF / H 2 O (100 mL / 25 mL) and then stirred at 60 ° C for 12 hours. The reaction temperature was lowered to room temperature and the reaction was terminated by using water. Then, three extractions were carried out using ether. The organic layer extracted therefrom was dried over anhydrous magnesium sulfate and distilled under reduced pressure, and the residue obtained was separated and purified by column chromatography to obtain intermediate A58-3 (2.00 g, yield: 70%).

[0700] Synthesis of intermediate A58-4

[0701] Intermediate A58-3 (3.27 g) was dissolved in THF (100 mL) and then cooled to 0 ° C. Methylmagnesium bromide solution (2.5M 8.0 mL) was slowly added dropwise to the reaction solution and then stirred at 0 ° C for 12 hours. The reaction was terminated by using water and then subjected to extraction treatment using ether. The organic layer extracted therefrom was dried over anhydrous magnesium sulfate and distilled under reduced pressure, and the residue obtained by column chromatography separation and purification was obtained to obtain intermediate A58-4 (2.00 g, yield: 70%).

[0702] Synthesis of intermediate A58-5

[0703] Intermediate A58-4 (3.06 g), Pd (PPh 3 ) 2 Cl 2 (0.35 g), bis (pinacolato) diboron (5.06 g) and KOAc (4.9 g) were dissolved in toluene (60 mL) and then stirred at 100° C. for 12 hours. The reaction temperature was lowered to room temperature and the reaction was terminated with water. Then, the mixture was subjected to three extraction treatments using ether. The organic layer extracted therefrom was dried over anhydrous magnesium sulfate and distilled under reduced pressure, and the residue obtained was separated and purified by column chromatography to obtain intermediate A58-5 (3.25 g, yield: 80%).

[0704] Synthesis of compound A58

[0705] Intermediate A58-5 (3.98 g), Pd (PPh 3 ) 4 (0.56 g), K 2 CO 3 (3.45 g) and 2-chloro-4- (3- (4,6-dimethyl-1,3,5-triazine-2-yl) phenyl) -6-methyl-1,3,5-triazine (3.48 g) were dissolved in THF / H 2 O (100 mL / 25 mL) and then stirred at 80 ° C for 12 hours. The reaction temperature was lowered to room temperature and the reaction was terminated by using water. Then, it was subjected to three extraction treatments by using diethyl ether. The organic layer extracted therefrom was dried by using anhydrous magnesium sulfate and distilled under reduced pressure, and the residue obtained was separated and purified by column chromatography to obtain compound A58 (5.00 g, yield: 70%).

[0706] Synthesis Example 2-1 (Synthesis of Compound B1)

[0707]

[0708] Synthesis of intermediate B1-2

[0709] After intermediate B1-1 (3.94 g) was dissolved in 50 mL of tetrahydrofuran (THF) and then stirred at -78 ° C, 4 mL of n-butyl lithium (n-BuLi) (2.5 M in hexane) was slowly added dropwise thereto at -78 ° C. A solution obtained by dissolving fluorodi-mesitylene borane (2.68 g) in THF (50 mL) was slowly added dropwise thereto at -78 ° C. The resulting solution was stirred at room temperature for 12 hours. The reaction was terminated by using water and subjected to three extraction treatments using ether. The organic layer extracted therefrom was dried using anhydrous magnesium sulfate and distilled under reduced pressure, and the residue obtained was separated and purified by column chromatography to obtain intermediate B1-2 (3.04 g, yield: 54%).

[0710] Synthesis of intermediate B1-3

[0711] Intermediate B1-2 (5.63 g), Pd (PPh 3 ) 2 Cl 2 (0.35 g), bis (pinacolato) diboron (2.53 g) and KOAc (2.45 g) were dissolved in toluene (50 mL) and then stirred at 100° C. for 12 hours. The reaction temperature was lowered to room temperature and the reaction was terminated with water. Then, the mixture was subjected to three extraction treatments using ether. The organic layer extracted therefrom was dried over anhydrous magnesium sulfate and distilled under reduced pressure, and the residue obtained was separated and purified by column chromatography to obtain intermediate B1-3 (3.90 g, yield: 64%).

[0712] Synthesis of compound B1

[0713] Intermediate B1-3 (6.10 g), Pd (PPh 3 ) 4 (0.56 g), K 2 CO 3 (3.45 g) and 2-chloro-4,6-diphenyl-1,3,5-triazine (2.67 g) were dissolved in THF / H 2 O (100 mL / 25 mL) and then stirred at 60 ° C for 12 hours. The reaction temperature was lowered to room temperature and the reaction was terminated by using water. Then, three extraction processes were carried out by using ether. The organic layer extracted therefrom was dried over anhydrous magnesium sulfate and distilled under reduced pressure, and the residue obtained was separated and purified by column chromatography to obtain compound B1 (5.00 g, yield: 70%).

[0714] Synthesis Example 2-2 (Synthesis of Compound B20)

[0715]

[0716] Synthesis of intermediate B20-2

[0717] After intermediate B20-1 (4.46 g) was dissolved in 50 mL of tetrahydrofuran (THF) and then stirred at -78 ° C, 4 mL of n-BuLi (2.5 M in hexane) was slowly added dropwise thereto at -78 ° C. The solution obtained by dissolving fluorodi-mesitylene borane (2.68 g) in THF (50 mL) was slowly added dropwise thereto at -78 ° C. The resulting solution was stirred at room temperature for 12 hours. The reaction was terminated by using water and subjected to three extraction processes using ether. The organic layer extracted therefrom was dried over anhydrous magnesium sulfate and distilled under reduced pressure, and the residue obtained was separated and purified by column chromatography to obtain intermediate B20-2 (3.44 g, yield: 56%).

[0718] Synthesis of intermediate B20-3

[0719] Intermediate B20-2 (6.15 g), Pd (PPh 3 ) 2 Cl 2 (0.35 g), bis (pinacolato) diboron (2.53 g) and KOAc (2.45 g) were dissolved in toluene (50 mL) and then stirred at 100° C. for 12 hours. The reaction temperature was lowered to room temperature and the reaction was terminated with water. Then, the mixture was subjected to three extraction treatments using diethyl ether. The organic layer extracted therefrom was dried over anhydrous magnesium sulfate and distilled under reduced pressure, and the residue obtained was separated and purified by column chromatography to obtain intermediate B20-3 (4.10 g, yield: 62%).

[0720] Synthesis of compound B20

[0721] Intermediate B20-3 (6.10 g), Pd(PPh3)4 (0.56 g), K2CO3 (3.45 g) and 2-([1,1'-biphenyl]-4-yl)-4-([1,1':2',1"-terphenyl]-3-yl)-6-chloro-1,3,5-triazine (4.96 g) were dissolved in THF / H2O (100 mL / 25 mL), and then stirred at 60°C for 12 hours. The reaction temperature was lowered to room temperature, and the reaction was terminated by using water. Then, it was subjected to three extraction treatments by using diethyl ether. The organic layer extracted therefrom was dried by using anhydrous magnesium sulfate and distilled under reduced pressure, and the residue obtained was separated and purified by column chromatography to obtain compound B20 (6.57 g, yield: 66%).

[0722] Synthesis Example 2-3 (Synthesis of Compound B32)

[0723]

[0724] Synthesis of intermediate B32-2

[0725] After intermediate B32-1 (4.01 g) was dissolved in 50 mL of THF and then stirred at -78 ° C, 4 mL of n-BuLi (2.5 M in hexane) was slowly added dropwise thereto at -78 ° C. A solution obtained by dissolving fluorodiphenylborane (1.84 g) in THF (50 mL) was slowly added dropwise thereto at -78 ° C. The resulting solution was stirred at room temperature for 12 hours. The reaction was terminated using water and subjected to three extraction processes using ether. The organic layer extracted therefrom was dried over anhydrous magnesium sulfate and distilled under reduced pressure, and the residue obtained was separated and purified by column chromatography to obtain intermediate B32-2 (2.95 g, yield: 58%).

[0726] Synthesis of intermediate B32-3

[0727] Intermediate B32-2 (4.93 g), Pd (PPh 3 ) 2 Cl 2 (0.35 g), bis (pinacolato) diboron (2.53 g) and KOAc (2.45 g) were dissolved in toluene (50 mL) and then stirred at 100° C. for 12 hours. The reaction temperature was lowered to room temperature and the reaction was terminated with water. Then, the mixture was subjected to three extractions with ether. The organic layer extracted therefrom was dried over anhydrous magnesium sulfate and distilled under reduced pressure, and the residue obtained was separated and purified by column chromatography to obtain intermediate B32-3 (3.29 g, yield: 61%).

[0728] Synthesis of compound B32

[0729] Intermediate B32-3 (5.40 g), Pd (PPh 3 ) 4 (0.56 g), K 2 CO 3 (3.45 g) and 2-chloro-4- (4-fluorophenyl) -6- (naphthalene-2-yl) -1,3,5-triazine (4.00 g) were dissolved in THF / H 2 O (100 mL / 25 mL) and then stirred at 60 ° C for 12 hours. The reaction temperature was lowered to room temperature and the reaction was terminated by using water. Then, three extraction processes were carried out by using ether. The organic layer extracted therefrom was dried over anhydrous magnesium sulfate and distilled under reduced pressure, and the residue obtained was separated and purified by column chromatography to obtain compound B32 (5.12 g, yield: 72%).

[0730] Synthesis Example 2-4 (Synthesis of Compound B42)

[0731]

[0732]

[0733] Synthesis of intermediate B42-2

[0734] After intermediate B42-1 (4.08 g) was dissolved in 50 mL of THF and then stirred at -78 ° C, 4 mL of n-BuLi (2.5 M in hexane) was slowly added dropwise thereto at -78 ° C. The solution obtained by dissolving fluorodiphenylborane (1.84 g) in THF (50 mL) was slowly added dropwise thereto at -78 ° C. The resulting solution was stirred at room temperature for 12 hours. The reaction was terminated by using water and subjected to three extraction processes using ether. The organic layer extracted therefrom was dried over anhydrous magnesium sulfate and distilled under reduced pressure, and the residue obtained was separated and purified by column chromatography to obtain intermediate B42-2 (2.95 g, yield: 60%).

[0735] Synthesis of intermediate B42-3

[0736] Intermediate B42-2 (4.93 g), Pd (PPh 3 ) 2 Cl 2 (0.35 g), bis (pinacolato) diboron (2.53 g) and KOAc (2.45 g) were dissolved in toluene (50 mL) and then stirred at 100° C. for 12 hours. The reaction temperature was lowered to room temperature and the reaction was terminated with water. Then, the mixture was subjected to three extraction treatments using ether. The organic layer extracted therefrom was dried over anhydrous magnesium sulfate and distilled under reduced pressure, and the residue obtained was separated and purified by column chromatography to obtain intermediate B42-3 (3.29 g, yield: 61%).

[0737] Synthesis of compound B42

[0738] Intermediate B42-3 (5.40 g), Pd(PPh3)4 (0.56 g), K2CO3 (3.45 g) and 2-([1,1'-biphenyl]-4-yl)-4-([1,1':3',1"-terphenyl]-5'-yl)-6-chloro-1,3,5-triazine (4.96 g) were dissolved in THF / H2O (100 mL / 25 mL) and then stirred at 60°C for 12 hours. The reaction temperature was lowered to room temperature, and the reaction was terminated by using water. Then, it was subjected to three extraction treatments by using diethyl ether. The organic layer extracted therefrom was dried by using anhydrous magnesium sulfate and distilled under reduced pressure, and the residue obtained was separated and purified by column chromatography to obtain compound B42 (4.97 g, yield: 57%).

[0739] Synthesis Example 2-5 (Synthesis of Compound B51)

[0740]

[0741] Synthesis of intermediate B51-1

[0742] Intermediate B42-1 (4.08 g), Pd(PPh3)4 (0.56 g), K2CO3 (3.45 g) and 2-([1,1'-biphenyl]-4-yl)-4-([1,1':2',1"-terphenyl]-3-yl)-6-chloro-1,3,5-triazine (4.96 g) were dissolved in THF / H2O (100 mL / 25 mL) and then stirred at -60°C for 12 hours. The reaction was terminated by using water. Then, it was subjected to extraction treatment three times by using diethyl ether. The organic layer extracted therefrom was dried by using anhydrous magnesium sulfate and distilled under reduced pressure, and the residue obtained was separated and purified by column chromatography to obtain intermediate B51-1 (4.17 g, yield: 70%).

[0743] Synthesis of intermediate B51-2

[0744] Intermediate B51-1 (5.97 g), Pd (PPh 3 ) 2 Cl 2 (0.35 g), bis (pinacolato) diboron (2.53 g) and KOAc (2.45 g) were dissolved in toluene (50 mL) and then stirred at 100° C. for 12 hours. The reaction temperature was lowered to room temperature and the reaction was terminated with water. Then, the mixture was subjected to three extraction treatments using ether. The organic layer extracted therefrom was dried over anhydrous magnesium sulfate and distilled under reduced pressure, and the residue obtained was separated and purified by column chromatography to obtain intermediate B51-2 (4.05 g, yield: 63%).

[0745] Synthesis of compound B51

[0746] Intermediate B51-2 (6.44 g), Pd(PPh3)4 (0.56 g), K2CO3 (3.45 g) and 2-([1,1'-biphenyl]-4-yl)-4-([1,1':2',1"-terphenyl]-3-yl)-6-chloro-1,3,5-triazine (3.43 g) were dissolved in THF / H2O (100 mL / 25 mL) and then stirred at 60°C for 12 hours. The reaction temperature was lowered to room temperature, and the reaction was terminated by using water. Then, it was subjected to three extraction treatments by using diethyl ether. The organic layer extracted therefrom was dried by using anhydrous magnesium sulfate and distilled under reduced pressure, and the residue obtained was separated and purified by column chromatography to obtain compound B51 (6.45 g, yield: 66%).

[0747] Synthesis Example 2-6 (Synthesis of Compound B61)

[0748]

[0749] Synthesis of intermediate B61-2

[0750] After intermediate B61-1 (4.06 g) was dissolved in 50 mL of THF and then stirred at -78 ° C, 4 mL of n-BuLi (2.5 M in hexane) was slowly added dropwise thereto. A solution obtained by dissolving fluorodi-mesitylene borane (2.68 g) in THF (50 mL) was slowly added dropwise thereto at -78 ° C. The resulting solution was stirred at room temperature for 12 hours. The reaction was terminated by using water and subjected to three extraction treatments using ether. The organic layer extracted therefrom was dried over anhydrous magnesium sulfate and distilled under reduced pressure, and the residue obtained was separated and purified by column chromatography to obtain intermediate B61-2 (3.85 g, yield: 67%).

[0751] Synthesis of intermediate B61-3

[0752] Intermediate B61-2 (5.65 g), Pd (PPh 3 ) 2 Cl 2 (0.35 g), bis (pinacolato) diboron (2.53 g) and KOAc (2.45 g) were dissolved in toluene (50 mL) and then stirred at 100 ° C for 12 hours. The reaction temperature was lowered to room temperature and the reaction was terminated by using water. Then, it was subjected to three extraction treatments using diethyl ether. The organic layer extracted therefrom was dried using anhydrous magnesium sulfate and distilled under reduced pressure, and the residue obtained was separated and purified by column chromatography to obtain intermediate B61-3 (4.29 g, yield: 69%).

[0753] Synthesis of compound B61

[0754] Intermediate B61-3 (6.22 g), Pd (PPh 3) 4 (0.56 g), K 2 CO 3 (3.45 g) and 2-chloro-4,6-diphenylpyridine (2.65 g) were dissolved in THF / H 2 O (100 mL / 25 mL) and then stirred at 60 ° C for 12 hours. The reaction temperature was lowered to room temperature and the reaction was terminated by using water. Then, three extraction processes were carried out by using ether. The organic layer extracted therefrom was dried over anhydrous magnesium sulfate and distilled under reduced pressure, and the residue obtained was separated and purified by column chromatography to obtain compound B61 (4.35 g, yield: 60%).

[0755] Those skilled in the art can easily identify methods for synthesizing compounds other than the compounds synthesized in the Synthesis Examples by referring to the synthesis routes and starting materials.

[0756] Comparative Example 1

[0757] As an anode, a A glass substrate of an electrode (product of Corning Incorporated) was cut into a size of 50 mm×50 mm×0.7 mm, ultrasonically treated with isopropyl alcohol and pure water for 5 minutes each, cleaned by irradiating ultraviolet rays and exposing it to ozone for 30 minutes, and then mounted on a vacuum deposition apparatus.

[0758] NPD is deposited on the anode to form or provide a HT3 is deposited on the hole injection layer to form or provide a hole injection layer having a thickness of CzSi is deposited on the hole transport layer to form or provide a hole transport layer having a thickness of Thickness of the emission auxiliary layer.

[0759] On the emission auxiliary layer, HTH49 acting as a hole transport host, ETH2 as an electron transport host, PS-3 acting as a phosphorescent sensitizer, and DFD31 acting as a dopant are co-deposited in a weight ratio of 42:42:15:1 to form or provide a layer having Thickness of the emission layer.

[0760] TSPO1 is deposited on the emission layer to form or provide a TPBi is deposited on the hole blocking layer to form or provide a hole blocking layer having a thickness of The electron transport layer is deposited on the electron transport layer to form or provide a and depositing Al on the electron injection layer to form or provide an electron injection layer having a thickness of A cathode with a thickness of 100 nm is formed to produce a light-emitting device.

[0761]

[0762]

[0763] Comparative Examples 2 to 24

[0764] A light-emitting device was manufactured in the same manner (eg, substantially the same manner) as in Comparative Example 1, except that the compounds shown in Table 1 were each used instead of TPBi when the electron transport layer was formed or provided.

[0765] Example 1 to Example 11

[0766] A light-emitting device was manufactured in the same manner (eg, substantially the same manner) as in Comparative Example 1, except that two compounds shown in Table 2 were used at a weight ratio of 5:5 instead of TPBi when forming or providing the electron transport layer.

[0767] Example 12 to Example 14

[0768] A light-emitting device is manufactured in the same manner (e.g., substantially the same manner) as in Comparative Example 1, except that when forming or providing the electron transport layer, the two compounds shown in Table 2 are used instead of TPBi in a weight ratio of 5:5, and when forming or providing the emission layer, the hole transport host, electron transport host and phosphorescent sensitizer shown in Table 2 are used.

[0769] Evaluation Example 1

[0770] For each of the light emitting devices of Comparative Examples 1 to 24 and Examples 1 to 14, the brightness at 1000 cd / m 2 Driving voltage (V), luminous efficiency (cd / A) and lifespan (T 95 Lifespan (T 95 ) may be a measured value of the time (hr) taken for the luminance to drop to 95% of the initial luminance. The measured lifespans are shown in Tables 1 and 2 as lifespan ratios, which are relative values ​​compared to the values ​​of Comparative Example 1.

[0771] Table 1

[0772]

[0773]

[0774]

[0775]

[0776] Table 2

[0777]

[0778] It is confirmed from Tables 1 and 2 that the light-emitting devices according to Examples 1 to 14 (e.g., simultaneously) using both the first compound and the second compound have better driving voltage, luminous efficiency, and lifespan than the light-emitting devices according to Comparative Examples 1 to 6 using compounds that do not fall within the ranges of Formula 1 and Formula 2. In one or more embodiments, the light-emitting devices according to Examples 1 to 14 have better at least one of the driving voltage, luminous efficiency, and lifespan than the light-emitting devices according to Comparative Examples 7 to 24 using one of the first and second compounds, and other characteristics of the light-emitting devices of Examples 1 to 14 are similar to other characteristics of the light-emitting devices of Comparative Examples 7 to 24.

[0779] Because of this, a light-emitting device that includes both the first compound and the second compound (for example, simultaneously) can have improved driving voltage and / or luminous efficiency (for example, appropriate driving voltage and / or luminous efficiency) by including the first compound, and can have a longer life by including the second compound. Because the first compound and the second compound do not weaken each other's characteristics, compared to if (for example, when) only one selected from the first compound and the second compound is used, if (for example, when) the first compound and the second compound are used as a mixture, at least one selected from the driving voltage, luminous efficiency, and life can be improved (for example, to provide appropriate driving voltage, luminous efficiency, and life), and other characteristics can also be excellent or appropriate.

[0780] It should be understood that the embodiments described herein should be considered in a descriptive sense only and not for purposes of limitation. The description of features or aspects in each embodiment should generally be considered to be applicable to other similar features or aspects in other embodiments. Although the subject matter of the present disclosure has been described with reference to the drawings, it will be understood by those skilled in the art that one or more appropriate changes in form and further details may be made therein without departing from the spirit and scope defined by the appended claims and their equivalents.

Claims

1. A light-emitting device, comprising: a first electrode; a second electrode facing the first electrode; and an interlayer disposed between the first electrode and the second electrode and including an emission layer, wherein the interlayer comprises: a first compound represented by Formula 1; and a second compound represented by Formula 2: Formula 1 In formula 1, At least one selected from Z1 to Z3 is a group represented by the formula TZ: Formula TZ Formula 2 Among them, in formula 1, formula TZ and formula 2, Ring CY1 is unsubstituted or substituted with at least one R 10a Substituted C3-C 30 Carbocyclic groups are either unsubstituted or substituted with at least one R 10a Substituted C1-C 30 heterocyclic group, Ring CY2 is unsubstituted or substituted with at least one R 10a Substituted C3-C 20 Cycloalkyl, X1 is a carbon atom forming a ring CY2, and X1 is bonded to four different atoms, L 11 , L 21 and L 22 Each is independently a single bond, unsubstituted or replaced by at least one R 10a Substituted C3-C 30 Carbocyclic groups are either unsubstituted or substituted with at least one R 10a Substituted C1-C 30 heterocyclic group, a11, a21 and a22 are each independently an integer selected from 1 to 5, Y 21 N or C(R 21 ), Y 22 N or C(R 22 ), Y 23 N or C(R 23 ), and selected from Y 21 To Y 23 At least one of them is N, Z1 to Z3, R 11 to R 14 and R 21 to R 27 Each is independently hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, unsubstituted or replaced by at least one R 10a Substituted C1-C 60 Alkyl, unsubstituted or substituted with at least one R 10a Substituted C2-C 60 Alkenyl, unsubstituted or substituted with at least one R 10a Substituted C2-C 60 Alkynyl, unsubstituted or substituted with at least one R 10a Substituted C1-C 60 Alkoxy, unsubstituted or substituted with at least one R 10a Substituted C3-C 60 Carbocyclic group, unsubstituted or substituted by at least one R 10a Substituted C1-C 60 heterocyclic group, -Si(Q1)(Q2)(Q3), -N(Q1)(Q2), -B(Q1)(Q2), -C(=O)(Q1), -S(=O)2(Q1), or -P(=O)(Q1)(Q2), R 26 and L 21 are optionally bonded to each other via a direct bond or *-O-*' to form an unsubstituted or substituted group consisting of at least one R 10a Substituted C1-C 30 heterocyclic group, R 27 and L 21 are optionally bonded to each other via a direct bond or *-O-*' to form an unsubstituted or substituted group consisting of at least one R 10a Substituted C1-C 30 heterocyclic group, R 26 and R 27 are optionally bonded to each other via a direct bond or *-O-*' to form an unsubstituted or substituted group consisting of at least one R 10a Substituted C1-C 30 heterocyclic group, R 10a for: deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, or nitro; Each unsubstituted or substituted C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl or C1-C 60 Alkoxy: deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, C3-C 60 Carbocyclic group, C1-C 60 Heterocyclic group, C6-C 60 Aryloxy, C6-C 60 Arylthio, C7-C 60 Aralkyl, C2-C 60 Heteroaralkyl, -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 ),-P(=O)(Q 11 )(Q 12 ) or any combination thereof; Each unsubstituted or substituted C3-C 60 Carbocyclic group, C1-C 60 Heterocyclic group, C6-C 60 Aryloxy, C6-C 60 Arylthio, C7-C 60 Arylalkyl or C2-C 60 Heteroarylalkyl: deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl, C1-C 60 Alkoxy, C3-C 60 Carbocyclic group, C1-C 60 Heterocyclic group, C6-C 60 Aryloxy, C6-C 60 Arylthio, C7-C 60 Aralkyl, C2-C 60 Heteroaralkyl, -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 ),-P(=O)(Q 21 )(Q 22 ) or any combination thereof, or -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 ) or -P(=O)(Q 31 )(Q 32 ), Q1 to Q3, Q 11 To Q 13 , Q 21 To Q 23 and Q 31 To Q 33 Each independently is: hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, or nitro; or Each unsubstituted or deuterated, -F, cyano, C1-C 60 Alkyl, C1-C 60 C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl, C1-C 60 Alkoxy, C3-C 60 Carbocyclic or C1-C 60 heterocyclic group, and * and *' are each a binding site with an adjacent atom. 2 . The light emitting device of claim 1 , wherein the first compound and the second compound are mixed with each other.

3. The light emitting device of claim 1 , wherein the interlayer further comprises an electron transport region disposed between the emission layer and the second electrode, and The electron transport region includes the first compound and the second compound.

4. The light emitting device according to claim 1, wherein the interlayer comprises: A hole transport host comprising a group represented by Formula 3; comprising at least one π-electron-deficient nitrogen-containing C1-C 60 an electron transport host comprising a heterocyclic group; a sensitizer comprising a transition metal; a dopant comprising at least one cyclic group comprising boron as a ring atom; or any combination thereof, and The first compound, the second compound, the hole transport host, the electron transport host, the sensitizer, and the dopant are different from each other: Formula 3 Among them, in formula 3, CycloCY 71 and CY 72 Each is independently a π-electron-rich C3-C 60 a cyclic group or a pyridyl group, X 71 is a single bond or a linking group comprising O, S, N, B, C, Si or any combination thereof, and * is a binding site with any atom in the remaining parts except Formula 3 in the hole transport host. The light-emitting device according to claim 1 , wherein one selected from Z 1 to Z 3 is a group represented by the formula TZ. The light-emitting device of claim 1 , wherein the first compound includes three triazine groups.

7. The light-emitting device according to claim 1, wherein the ring CY1 is unsubstituted or substituted with at least one R 10a Substituted C6-C 30 Aryl, unsubstituted or substituted with at least one R 10a Substituted C1-C 30 Heteroaryl, unsubstituted or substituted with at least one R 10a The substituted non-aromatic fused polycyclic group is either unsubstituted or substituted with at least one R 10a Substituted non-aromatic fused heteropolycyclic group.

8. The light emitting device according to claim 1, wherein In formula 1, The groups represented by The group represented by is in a meta position relative to ring CY1.

9. The light-emitting device according to claim 1, wherein the first compound is represented by Formula 1-1: Formula 1-1 in, In formula 1-1, Z1 to Z3, R 11 and R 12 Each as described with reference to Formula 1, and R1 to R3 are each the same as reference R 10a As stated.

10. The light-emitting device according to claim 1, wherein i) when Z1 or Z2 in Formula 1 is a group represented by the formula TZ, L 11 is unsubstituted or substituted with at least one R 10a Substituted C3-C 30 Carbocyclic groups are either unsubstituted or substituted with at least one R 10a Substituted C1-C 30 heterocyclic group, or ii) When Z3 in Formula 1 is a group represented by the formula TZ, L 11 For a single bond.

11. The light emitting device according to claim 1, wherein L 11 , L 21 and L 22 Each is independently a single bond, unsubstituted or replaced by at least one R 10a Substituted C6-C 30 Aryl, unsubstituted or substituted with at least one R 10a Substituted C1-C 30 Heteroaryl, unsubstituted or substituted with at least one R 10a The substituted non-aromatic fused polycyclic group is either unsubstituted or substituted with at least one R 10a Substituted non-aromatic fused heteropolycyclic group.

12. The light emitting device according to claim 1, wherein L 11 , L 21 and L 22 are each independently a single bond or a group represented by any one selected from Formula BZ1 to Formula BZ3: in, In Formulas BZ1 to BZ3, R 10a , * and *' are each as described in claim 1, and b4 is an integer selected from 0 to 4.

13. The light emitting device according to claim 1, wherein: In formula 1, R 11 to R 14 and Z1 to Z3 are each independently hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, unsubstituted or replaced by at least one R 10a Substituted C1-C 60 Alkyl, unsubstituted or substituted with at least one R 10a Substituted phenyl, unsubstituted or replaced by at least one R 10a substituted pyridyl or unsubstituted or substituted by at least one R 10a Substituted pyrimidinyl.

14. The light-emitting device according to claim 1, wherein the ring CY2 is unsubstituted or substituted with at least one R 10a Substituted cyclopentyl, unsubstituted or replaced by at least one R 10a Substituted cyclohexyl, unsubstituted or replaced by at least one R 10a Substituted cycloheptyl, unsubstituted or substituted by at least one R 10a Substituted cyclooctyl, unsubstituted or substituted by at least one R 10a Substituted norbornyl or unsubstituted or replaced by at least one R 10a Substituted adamantyl.

15. The light-emitting device according to claim 1, wherein the second compound is represented by Formula 2-1: Formula 2-1 in, In formula 2-1, ring CY2, X1, Y 21 To Y 23 、R 24 to R 27 and R 10a each as claimed in claim 1, and b4 is an integer selected from 0 to 4.

16. The light emitting device according to claim 1, wherein In formula 2, R 21 to R 27 Each is independently hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, unsubstituted or replaced by at least one R 10a Substituted C1-C 60 Alkyl, unsubstituted or substituted with at least one R 10a Substituted phenyl, unsubstituted or replaced by at least one R 10a substituted naphthyl, unsubstituted or substituted with at least one R 10a substituted fluorenyl, unsubstituted or replaced by at least one R 10a substituted carbazolyl, unsubstituted or replaced by at least one R 10a Substituted dibenzofuranyl or unsubstituted or replaced by at least one R 10a Substituted dibenzothienyl. The light-emitting device of claim 1 , wherein a ratio between the weight of the first compound and the weight of the second compound is 3:7 to 7:

3.

18. The light-emitting device of claim 1, wherein the first compound is any one selected from Compound A1 to Compound A60, and the second compound is any one selected from Compound B1 to Compound B64:

19. An electronic device comprising: The light-emitting device according to any one of claims 1 to 18; and A thin film transistor is electrically connected to the light emitting device.

20. An electronic device comprising the light emitting device of any one of claims 1 to 18, wherein the electronic device is one selected from the group consisting of a flat panel display, a curved display, a computer monitor, a medical monitor, a television, a billboard, an indoor light, an outdoor light, an indoor signal light, an outdoor signal light, a head-up display, a fully transparent display, a partially transparent display, a flexible display, a rollable display, a foldable display, a retractable display, a laser printer, a telephone, a mobile phone, a tablet personal computer, a tablet mobile computer, a personal digital assistant, a wearable device, a laptop computer, a digital camera, a video camera, a viewfinder, a microdisplay, a three-dimensional display, a virtual reality display, an augmented reality display, a vehicle, a video wall comprising a plurality of displays stitched together, a theater screen, a stadium screen, a light therapy device, and a sign.

Images