Organometallic compound, and light-emitting device, electronic device, and electronic equipment including same

Abstract

The present application relates to an organometallic compound, and a light-emitting device, an electronic apparatus, and an electronic device each including the organometallic compound. Providing an organometallic compound represented by Formula 1, a light-emitting device including the organometallic compound represented by Formula 1, and an electronic device and an electronic device each including the light-emitting device: Formula 1

Description

[0001] Cross-references to related applications

[0002] This application claims priority and benefit to Korean Patent Application No. 10-2024-0096478, filed on July 22, 2024, with the Korean Intellectual Property Office, the entire disclosure of which is incorporated herein by reference. Technical Field

[0003] One or more embodiments of this disclosure relate to organometallic compounds, and light-emitting devices, electronic devices, and electronic equipment, each including an organometallic compound. Background Technology

[0004] Organic light-emitting devices are self-emitting devices. Compared with other light-emitting devices in related fields, they have relatively wide viewing angles, high contrast, short response times, and superior or appropriate characteristics in terms of brightness, driving voltage, and response speed, and produce full-color images.

[0005] In the example, the organic light-emitting device may have a structure in which a first electrode is disposed on a substrate, and a hole transport region, an emitter layer, an electron transport region, and a second electrode are sequentially formed on the first electrode. Holes supplied by the first electrode move toward the emitter layer through the hole transport region, while electrons supplied by the second electrode move toward the emitter layer through the electron transport region. These charge carriers, i.e., holes and electrons, recombine in the emitter layer to generate excitons. When the excitons transition from the excited state and decay to the ground state, light is emitted. Summary of the Invention

[0006] One or more aspects of embodiments of this disclosure relate to organometallic compounds, and light-emitting devices, electronic devices, and electronic equipment in which each includes an organometallic compound.

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

[0008] According to one or more embodiments of this disclosure, an organometallic compound represented by Formula 1 is provided:

[0009] Formula 1

[0010]

[0011] In Equation 1,

[0012] M1 can be platinum (Pt), palladium (Pd), copper (Cu), silver (Ag), gold (Au), rhodium (Rh), iridium (Ir), ruthenium (Ru), osmium (Os), titanium (Ti), zirconium (Zr), hafnium (Hf), europium (Eu), terbium (Tb), or thulium (Tm).

[0013] CY 20 , CY 30 and CY 40 may each independently be C5-C 30 carbocyclyl or C1-C 30 heterocyclyl,

[0014] T 11 , T 12 , T2, T3and T4each independently indicate a bond,

[0015] Y 10 , Y 15 , Y 20 , Y 30 and Y 40 may each independently be C or N,

[0016] Y 11 may be N or C(R 11 ),

[0017] Y 12 may be N or C(R 12 ),

[0018] Y 13 may be N or C(R 13 ),

[0019] Y 14 may be N or C(R 14 ),

[0020] two or more of Y 10 to Y 15 may each be N,

[0021] L 14 , L 23 and L 34 may each independently be a single bond, *-O-*', *-S-*', *-C(R5)(R6)-*', *-C(R5)=*-, *=C(R5)-*', *-C(R5)=C(R6)-*', *-C(=0)-*', *-C(=S)-*', *-C=C-*', *-B(R5)-*', *-N(R5)-*', *-P(R5)-*', *-Si(R5)(R6)-*', *-P(R5)(R6)-*', or *-Ge(R5)(R6)-*',

[0022] a14, a23and a34may each independently be an integer selected from 0 to 5, wherein i) if (e.g., when) a14is 0, then *-(L 14 ) a14* is a single bond, ii) if (e.g., when) a23 is 0, then *-(L 23 ) a23 * is a single bond, and iii) if (e.g., when) a34 is 0, then *-(L 34 ) a34 * is a single bond,

[0023] R 11 to R 14 and R2to R6may each independently be hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazino, hydrazono, unsubstituted or substituted by at least one R 10a substituted C1-C 60 alkyl, unsubstituted or substituted by at least one R 10a substituted C2-C 60 alkenyl, unsubstituted or substituted by at least one R 10a substituted C2-C 60 alkynyl, unsubstituted or substituted by at least one R 10a substituted C1-C 60 alkoxy, unsubstituted or substituted by at least one R 10a substituted C3-C 10 cycloalkyl, unsubstituted or substituted by at least one R 10a substituted C1-C 10 heterocycloalkyl, unsubstituted or substituted by at least one R 10a substituted C3-C 10 cycloalkenyl, unsubstituted or substituted by at least one R 10a substituted C1-C 10 heterocycloalkenyl, unsubstituted or substituted by at least one R 10a substituted C6-C 60 aryl, unsubstituted or substituted by at least one R 10a substituted C6-C 60 aryloxy, unsubstituted or substituted by at least one R 10a substituted C6-C 60 arylthio, unsubstituted or substituted by at least one R 10a substituted C1-C 60 heteroaryl, unsubstituted or substituted by at least one R 10a substituted C1-C 60 heteroaryloxy, unsubstituted or substituted by at least one R 10a substituted C1-C 60 heteroarylthio, unsubstituted or substituted by at least one R 10a substituted monovalent non-aromatic fused polycyclic group, unsubstituted or substituted by at least one R 10aa substituted monovalent non-aromatic fused heteropolycyclic group, -Si(Q1)(Q2)(Q3), -B(Q1)(Q2), -N(Q1)(Q2), -P(Q1)(Q2), -C(=O)(Q1), -S(=O)(Q1), -S(=O)2(Q1), -P(=O)(Q1)(Q2), or -P(=S)(Q1)(Q2),

[0024] R 11 to R 14 and two or more adjacent groups among R2to R6may optionally be bonded to each other to form an unsubstituted or substituted C5-C 10a cycloalkyl group, 60 or an unsubstituted or substituted C1-C 10a alkyl group, 60 heterocyclyl group,

[0025] n2to n4may each independently be an integer selected from 0 to 10,

[0026] R 10a may be:

[0027] deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, amidino, hydrazino, hydrazono, or nitro;

[0028] 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 carbocyclyl, C1-C 60 heterocyclyl, C6-C 60 aryloxy, C6-C 60 arylthio, C1-C 60 heteroaryloxy, C1-C 60 heteroarylthio, 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;

[0029] Each of the following C3-Cs that are not substituted or are substituted: 60 Carbocyclic group, C1-C 60 Heterocyclic group, C6-C 60 Aryloxy or C6-C 60 Aryl thiols: deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, C1-C 60 Alkyl, C2-C 60 alkenyl, C2-C 60 alkynyl group, C1-C 60 Alkoxy, C3-C 60 Carbocyclic group, C1-C 60 Heterocyclic group, C6-C 60 Aryloxy group, C6-C 60 Arylthio, C1-C 60 Heteroaryloxy, C1-C 60 heteroaryl thiols, C7-C 60 Aryl alkyl, C2-C 60 Heteroaryl, -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

[0030] -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 ),and

[0031] Q1 to Q3, Q 11 To Q 13 Q 21 To Q 23 and Q 31 To Q 33each independently is: hydrogen; deuterium; -F; -CI; -Br; -I; hydroxyl; cyano; amidino; hydrazino; hydrazone; nitro; C1-C 60 alkyl; C2-C 60 alkenyl; C2-C 60 alkynyl; C1-C 60 alkoxy; each unsubstituted or substituted with deuterium, -F, cyano, C1-C 60 alkyl, C1-C 60 alkoxy, phenyl, biphenyl, or any combination thereof; C3-C 60 carbocyclyl, or C1-C 60 heterocyclyl; C7-C 60 aralkyl; or C2-C 60 heteroaralkyl.

[0032] According to one or more embodiments of the present disclosure, a light-emitting device includes a first electrode, a second electrode opposite (e.g., facing) the first electrode, a sandwich layer between the first electrode and the second electrode and including an emission layer, and an organometallic compound represented by Formula 1.

[0033] According to one or more embodiments of the present disclosure, an electronic device includes a light-emitting device.

[0034] According to one or more embodiments of the present disclosure, an electronic device includes a light-emitting device. BRIEF DESCRIPTION OF DRAWINGS

[0035] The accompanying drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of the present disclosure. The drawings illustrate embodiments of the present disclosure and, together with the description, serve to explain the principles of the present disclosure. The above and other aspects, features, and advantages of certain embodiments of the present disclosure will be more apparent from the following description taken in conjunction with the accompanying drawings, in which:

[0036] Figure 1 is a schematic cross-sectional view of a structure of a light-emitting device according to one or more embodiments of the present disclosure;

[0037] Figure 2 is a schematic cross-sectional view of a structure of a light-emitting device according to one or more embodiments of the present disclosure;

[0038] Figure 3 is a schematic cross-sectional view of a structure of a light-emitting device according to one or more embodiments of the present disclosure;

[0039] Figure 4 is a schematic perspective view of an electronic device including a light-emitting device according to one or more embodiments of the present disclosure;

[0040] Figure 5is a schematic view of an exterior of a vehicle that is an electronic device including a light emitting device according to one or more embodiments of the present disclosure; and

[0041] Figures 6A to 6C is a schematic view of an interior of a vehicle that includes a light emitting device according to one or more embodiments of the present disclosure. DETAILED DESCRIPTION

[0042] Reference will now be made in detail embodiments, one or more of which are illustrated in the accompanying drawings, wherein same reference numerals indicate same elements throughout the several views, and wherein for the purposes of clarity and for brevity of description, repetitive descriptions are not provided in the description. In this regard, the presented embodiments can have different forms and should not be construed as limited to the description set forth herein. Accordingly, the embodiments of the present disclosure are described, by way of illustration only, with reference to the accompanying drawings, in order to explain aspects of the present disclosure. As used herein, the term "and / or" or "or" can include any and all combinations of one or more of the associated listed items. Throughout this disclosure, when expressions such as "at least one of," "one of," and "selected from the group consisting of" precede a list of elements, the elements are modified by the phrases "the whole list" and not by the individual elements of the list. For example, "at least one of a, b, and c," "selected from the group consisting of a, b, and c," "selected from a to c," and the like, can indicate only a, only b, only c, both a and b (e.g., a and b together), both a and c (e.g., a and c together), both b and c (e.g., b and c together), all of a, b, and c, or variations thereof. Depending on the situation, " / " used herein can be interpreted as "and" or "or".

[0043] According to one or more embodiments of the present disclosure, there is provided an organic metal compound represented by Formula 1:

[0044] Formula 1

[0045]

[0046] In Formula 1, M1may be platinum (Pt), palladium (Pd), copper (Cu), silver (Ag), gold (Au), rhodium (Rh), iridium (Ir), ruthenium (Ru), osmium (Os), titanium (Ti), zirconium (Zr), hafnium (Hf), europium (Eu), terbium (Tb), or thulium (Tm).

[0047] In one or more embodiments, M1may be Pt, Pd, Cu, Ag, or Au.

[0048] In one or more embodiments, M1may be Pt or Pd.

[0049] In Formula 1, CY 20 , CY 30 , and CY40 each independently C5-C12carbocyclyl or C1-C12hydrocarbyl, 30 each independently C5-C12carbocyclyl or C1-C12hydrocarbyl, 30 heterocyclyl.

[0050] In one or more embodiments, CY 20 , CY 30 , and CY 40 each independently phenyl, naphthyl, anthryl, phenanthryl, triphenylenyl, indolyl, benzoborolyl, benzophospholyl, indenyl, benzothiinyl, benzogermaninyl, benzothiophenyl, benzoselenophenyl, benzofuranyl, carbazolyl, dibenzoborolyl, dibenzophospholyl, fluorenyl, dibenzothiinyl, dibenzogermaninyl, dibenzothiophenyl, dibenzoselenophenyl, dibenzofuranyl, dibenzothiophene-5-oxideyl, 9H-fluoren-9-onyl, dibenzothiophene-5,5-dioxideyl, pyridyl, pyrimidinyl, pyrazinyl, pyridazinyl, triazinyl, quinolyl, isoquinolyl, quinoxalyl, quinazolyl, phenanthrolinyl, pyrrolyl, pyrazolyl, imidazolyl, triazolyl, oxazolyl, isoxazolyl, thiazolyl, isothiazolyl, oxadiazolyl, thiadiazolyl, benzopyrazolyl, benzimidazolyl, benzoxazolyl, benzothiazolyl, benzoxadiazolyl, or benzothiadiazolyl.

[0051] In one or more embodiments, the group represented by in Formula 1 can be any one selected from the group represented by Formulae CY(20)-1 to CY(20)-12:

[0052]

[0053] wherein, in Formulae CY(20)-1 to CY(20)-12,

[0054] Y 20 may be C or N,

[0055] Z 20 may be O, S, Se, N(R 27 ), C(R 27 )(R 28 ), or Si(R 27 )(R 28 ),

[0056] R 21 to R 28 each independently the same as described in relation to R2, and

[0057] * and *' each indicate a binding site to an adjacent atom.

[0058] In one or more embodiments, the group represented byThe group represented by may be any one selected from the group represented by formula CY(30)-1 to formula CY(30)-20:

[0059]

[0060] In formula CY(30)-1 to formula CY(30)-20,

[0061] Y 30 may be C or N,

[0062] Z 30 may be O, S, Se, N(R 37 ), C(R 37 )(R 38 ), or Si(R 37 )(R 38 ), R 31 to R 38 may each independently be the same as described for R3, and

[0063] *, *', and *" each indicate a binding site to an adjacent atom.

[0064] In one or more embodiments, the group represented by in formula 1 may be any one selected from the group represented by formula CY(40)-1 to formula CY(40)-20:

[0065]

[0066] In formula CY(40)-1 to formula CY(40)-20,

[0067] Y 40 may be C or N,

[0068] Z 40 may be O, S, Se, N(R 46 ), C(R 46 )(R 47 ), or Si(R 46 )(R 47 ), R 41 to R 47 may each independently be the same as described for R4, and

[0069] *, *', and *" each indicate a binding site to an adjacent atom.

[0070] In formula 1, T 11 , T 12, T2, T3, and T4 each independently indicate a chemical bond. Here, the chemical bond indicates a bond between atoms or ions constituting a compound, and can include a covalent bond, a coordinate bond, an ionic bond, and / or a metal bond, etc.

[0071] In one or more embodiments, T 11 , T 12 , T2, T3, and T4 can each independently be a coordinate bond or a covalent bond.

[0072] In one or more embodiments, two of T 11 , T2, T3, and T4 can each be a coordinate bond, and the other two can each be a covalent bond.

[0073] In one or more embodiments, T 11 and T2 can each be a coordinate bond, and T3 and T4 can each be a covalent bond.

[0074] In one or more embodiments, T 12 may be a covalent bond.

[0075] In one or more embodiments, T 12 may be a covalent bond in the form of a single bond or a double bond.

[0076] In one or more embodiments, the organometallic compound represented by Formula 1 can be an organometallic compound represented by Formula 11:

[0077] Formula 11

[0078]

[0079] In Formula 11,

[0080] M1, CY 20 , CY 30 , CY 40 , T 11 , T2 to T4, Y 10 to Y 15 , Y 20 , Y 30 , Y 40 , L 14 , L 23 , L 34 , a14, a23, a34, R2 to R4, and n2 to n4 are each the same as described herein.

[0081] In one or more embodiments, the organometallic compound represented by Formula 11 can be an organometallic compound represented by Formula 12:

[0082] Formula 12

[0083]

[0084] Formula 12 is a resonance structure of Formula 11, and in this regard, the organometallic compound represented by Formula 12 is the same compound as the organometallic compound represented by Formula 11. Due to the resonance structure, π electrons can be delocalized, thereby exhibiting the effect of a stable molecular structure.

[0085] In Formula 1, L 14 , L 23 , and L 34 may each independently be a single bond, *-O-*', *-S-*', *-C(R5)(R6)-', *-C(R5)=*', *=C(R5)-', *-C(R5)=C(R6)-', *-C(=O)-', *-C(=S)-', *-C≡C-*, *-B(R5)-', *-N(R5)-', *-P(R5)-', *-Si(R5)(R6)-', *-P(R5)(R6)-', or *-Ge(R5)(R6)-',

[0086] In Formula 1, a14, a23, and a34may each independently be an integer selected from 0 to 5, wherein i) if (e.g., when) a14is 0, then *-(L 14 ) a14 may be a single bond, ii) if (e.g., when) a23is 0, then *-(L 23 ) a23 may be a single bond, and iii) if (e.g., when) a34is 0, then *-(L 34 ) a34 may be a single bond.

[0087] In one or more embodiments, a14and a23may each be 0, and L 14 and L 23 may each be a single bond. In one or more embodiments, a34may be 1, and L 34 may be *-O-*' or *-S-*'.

[0088] In Formula 1, Y 10 , Y 15 , Y 20 , Y 30 , and Y 40 may each independently be C or N, Y 11 may be N or C(R 11 ), Y 12 may be N or C(R 12 ), Y 13 may be N or C(R 13 ), and Y14 may be N or C(R 14 ).

[0089] In one or more embodiments, Y 10 may be C. In one or more embodiments, Y 15 may be N.

[0090] In Formula 1, two or more selected from Y 10 to Y 15 may each be N.

[0091] In one or more embodiments, the organometallic compound represented by Formula 1 can be an organometallic compound represented by any one selected from Formula 20 to Formula 24:

[0092] Formula 20

[0093]

[0094] Formula 21

[0095]

[0096] Formula 22

[0097]

[0098] Formula 23

[0099]

[0100] Formula 24

[0101]

[0102] In Formula 20 to Formula 24,

[0103] M1, CY 20 , CY 30 , CY 40 , T 11 , T2 to T4, Y 20 , Y 30 , Y 40 , L 14 , L 23 , L 34 , a14, a23, a34, R 11 to R 14 , R2 to R4, and n2 to n4 are each the same as described herein.

[0104] In one or more embodiments, two selected from Y 11 to Y 15 may each be N.

[0105] In one or more embodiments, the organometallic compound represented by Formula 1 can be an organometallic compound represented by Formula 20 or Formula 22.

[0106] In Formula 1,

[0107] R 11 to R 14 and R2to R6may each independently be hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazino, hydrazono, unsubstituted or substituted C1-C 10a alkyl, unsubstituted or substituted C2-C 60 alkenyl, unsubstituted or substituted C2-C 10a alkynyl, unsubstituted or substituted C1-C 60 alkoxy, unsubstituted or substituted C3-C 10a cycloalkyl, unsubstituted or substituted C1-C 60 heterocycloalkyl, unsubstituted or substituted C3-C 10a cycloalkenyl, unsubstituted or substituted C1-C 60 heterocycloalkenyl, unsubstituted or substituted C6-C 10a aryl, unsubstituted or substituted C6-C 10 aryloxy, unsubstituted or substituted C6-C 10a arylthio, unsubstituted or substituted C1-C 10 heteroaryl, unsubstituted or substituted C1-C 10a heteroaryloxy, unsubstituted or substituted C1-C 10 heteroarylthio, unsubstituted or substituted monovalent non-aromatic fused polycyclic group, unsubstituted or substituted C1-C 10a 10 10a 60 10a 60 10a 60 10a 60 10a 60 10a 60 10a 10a ​​​​​​​​​​​​​​​Substituted monovalent non-aromatic fused heterocyclic groups, -Si(Q1)(Q2)(Q3), -B(Q1)(Q2), -N(Q1)(Q2), -P(Q1)(Q2), -C(=O)(Q1), -S(=O)(Q1), -S(=O)2(Q1), -P(=O)(Q1)(Q2) or -P(=S)(Q1)(Q2), and

[0108] Selected from R 11 To R 14 Two or more adjacent groups from R2 to R6 may optionally be bonded to each other to form an unsubstituted or substituted compound. 10a Replacement C5-C 60 The carbocyclic group is either unsubstituted or has at least one R group. 10a Replacement C1-C 60 Heterocyclic group.

[0109] In Equation 1, n2 to n4 can each be an integer selected from 0 to 10 independently.

[0110] In one or more embodiments,

[0111] R 11 To R 14 R2 through R6 can be selected independently from:

[0112] Hydrogen, deuterium, -F, -Cl, -Br, -I, cyano, C1-C 20 Alkyl and C1-C 20 Alkoxy;

[0113] C1-C atoms each substituted with deuterium, -F, -Cl, -Br, -I, cyano, phenyl, biphenyl, or any combination thereof 20 Alkyl and C1-C 20 alkoxy groups; and

[0114] Composed of groups selected from any one of formulas 5-1 to 5-26 and 6-1 to 6-55, and

[0115] Selected from R 11 To R 14 Two or more adjacent groups from R2 to R6 may optionally be bonded together to form:

[0116] Cyclopentyl, cyclohexyl, cycloheptyl, phenyl, naphthyl, fluorenyl, or carbazole; or

[0117] Cyclopentyl, cyclohexyl, cycloheptyl, phenyl, naphthyl, fluorenyl, or carbazole groups, each substituted with deuterium, -F, -Cl, -Br, -I, cyano, phenyl, biphenyl, or any combination thereof:

[0118]

[0119]

[0120]

[0121]

[0122] wherein, in formulae 5-1 to 5-26 and 6-1 to 6-55,

[0123] Y 31 and Y 32 may each independently be O, S, Se, C(Z 33 )(Z 34 ), N(Z 33 ) or Si(Z 33 )(Z 34 ),

[0124] Z 31 to Z 34 may each independently be selected from the group consisting of hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazino, hydrazono, C1-C 20 alkyl, C2-C 20 alkenyl, C2-C 20 alkynyl, C1-C 20 alkoxy, phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spirobifluorenyl, phenanthryl, anthryl, triphenylenyl, pyridyl, pyrimidyl, carbazolyl and triazinyl,

[0125] e2may be 1 or 2,

[0126] e3may be an integer selected from 1 to 3,

[0127] e4may be an integer selected from 1 to 4,

[0128] e5may be an integer selected from 1 to 5,

[0129] e6may be an integer selected from 1 to 6,

[0130] e7may be an integer selected from 1 to 7,

[0131] e9may be an integer selected from 1 to 9, and

[0132] * indicates a binding site to an adjacent atom.

[0133] R 10a may be:

[0134] deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, amidino, hydrazino, hydrazono or nitro;

[0135] each unsubstituted or substituted by deuterium, -F, -CI, -Br, -I, hydroxyl, cyano, nitro, C1-C 60 alkyl, C2-C 60 alkenyl, C2-C 60 alkynyl or C1-C 60 alkoxy: deuterium, -F, -CI, -Br, -I, hydroxyl, cyano, nitro, C3-C 60 carbocyclyl, C1-C 60 heterocyclyl, C6-C 60 aryloxy, C6-C 60 arylthio, C1-C 60 heteroaryloxy, C1-C 60 heteroarylthio, 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;

[0136] each unsubstituted or substituted by deuterium, -F, -CI, -Br, -I, hydroxyl, cyano, nitro, C3-C 60 carbocyclyl, C1-C 60 heterocyclyl, C6-C 60 aryloxy or C6-C 60 arylthio: deuterium, -F, -CI, -Br, -I, hydroxyl, cyano, nitro, C1-C 60 alkyl, C2-C 60 alkenyl, C2-C 60 alkynyl, C1-C 60 alkoxy, C3-C 60 carbocyclyl, C1-C 60 heterocyclyl, C6-C 60 aryloxy, C6-C 60 arylthio, C1-C 60 heteroaryloxy, C1-C 60 heteroarylthio, 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

[0137] -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 ),and

[0138] Q1 to Q3, Q 11 To Q 13 Q 21 To Q 23 and Q 31 To Q 33 Each of these can be independently: hydrogen; deuterium; -F; -Cl; -Br; -I; hydroxyl; cyano; amidine; hydrazine; hydrazone; nitro; C1-C 60 Alkyl; C2-C 60 Alkenyl; C2-C 60 Alkyne group; C1-C 60 Alkyl groups; each unsubstituted or substituted with deuterium, -F, cyano, C1-C 60 Alkyl, C1-C 60 C3-C substituted with alkoxy, phenyl, biphenyl or any combination thereof 60 Carbocyclic or C1-C 60 Heterocyclic group; C7-C 60 Aryl alkyl group; or C2-C 60 Heteroalkyl groups.

[0139] In one or more embodiments, the organometallic compound represented by Formula 1 may be an organometallic compound represented by Formula 31:

[0140] Formula 31

[0141]

[0142] In Equation 31,

[0143] M1, T 11 T2 to T4, Y10 to Y 15 , L 34 and R3are each the same as described herein,

[0144] CY 31 may be C5-C 15 carbocyclyl or C1-C 15 heterocyclyl,

[0145] n31may be an integer selected from 0 to 10,

[0146] Y 21 may be N or C(R 21 ), Y 22 may be N or C(R 22 ), Y 23 may be N or C(R 23 ), and Y 24 may be N or C(R 24 ),

[0147] Y 31 may be N or C(R 31 ) and Y 32 may be N or C(R 32 ),

[0148] Y 41 may be N or C(R 41 ), Y 42 may be N or C(R 42 ), and Y 43 may be N or C(R 43 ),

[0149] R 21 to R 24 may each independently be the same as described with respect to R2,

[0150] R 31 and R 32 may each independently be the same as described with respect to R3, and

[0151] R 41 to R 43 may each independently be the same as described with respect to R4.

[0152] In one or more embodiments, the organometallic compound represented by Formula 1 can be an organometallic compound represented by Formula 41:

[0153] Formula 41

[0154]

[0155] wherein, in Formula 41,

[0156] M1, T 11 T2 to T4, Y 10 to Y 15 and L 34 each are the same as described herein,

[0157] Y 21 may be N or C(R 21 ), Y 22 may be N or C(R 22 ), Y 23 may be N or C(R 23 ), and Y 24 may be N or C(R 24 ),

[0158] Y 31 may be N or C(R 31 ), Y 32 may be N or C(R 32 ), Y 33 may be N or C(R 33 ), Y 34 may be N or C(R 34 ), Y 35 may be N or C(R 35 ), and Y 36 may be N or C(R 36 ),

[0159] Y 41 may be N or C(R 41 ), Y 42 may be N or C(R 42 ), and Y 43 may be N or C(R 43 ),

[0160] R 21 to R 24 may each independently be the same as described for R2,

[0161] R 31 to R 36 may each independently be the same as described for R3, and

[0162] R 41 to R 43 may each independently be the same as described for R4.

[0163] In one or more embodiments, the organometallic compound represented by Formula 1 can be one of Compound 1 to Compound 35 (e.g., selected from any one of Compound 1 to Compound 35):

[0164]

[0165]

[0166] Organometallic compounds represented by Formula 1 have the properties of those in Formula 1. The hexa-membered ring structure is represented, where the ring is selected from Y. 10 To Y 15 Two or more of them can each be N, and the linker *-O-*' connects the six-membered ring structure to the central metal M1. Through this structure, the organometallic compound represented by Formula 1 can be structurally stabilized by the linker *-O-*', and the metal-to-ligand charge transfer (MLCT) from the central metal M1 to the ligand can be improved.

[0167] Accordingly, if (for example, when) an organometallic compound represented by Formula 1 is applied to a light-emitting device, the light-emitting device may have improved luminous efficiency and device lifespan characteristics. For example, if (for example, when) the emitting layer of the light-emitting device comprises an organometallic compound represented by Formula 1, a light-emitting device that emits green or yellow light and has excellent or suitable color purity, luminous efficiency, and device lifespan characteristics can be implemented.

[0168] Organometallic compounds represented by Formula 1 can be used to emit green or yellow light. For example, organometallic compounds represented by Formula 1 can be used to emit light having a maximum emission wavelength (e.g., the wavelength of maximum emission intensity) of about 500 nanometers (nm) or larger and less than or equal to about 600 nm, such as light having a maximum emission wavelength in the range of about 540 nm to about 590 nm, but embodiments of this disclosure are not limited thereto. Accordingly, organometallic compounds represented by Formula 1 can be used to manufacture light-emitting devices for emitting green or yellow light.

[0169] In one or more embodiments, the organometallic compound represented by Formula 1 can be used to emit green or yellow light having a maximum emission wavelength in the range of about 500 nm to about 600 nm, about 510 nm to about 600 nm, about 520 nm to about 600 nm, about 530 nm to about 600 nm, about 540 nm to about 600 nm, or about 540 nm to about 590 nm.

[0170] By referring to the embodiments provided herein, those skilled in the art will recognize the method for synthesizing organometallic compounds represented by Formula 1.

[0171] According to one or more embodiments of the present disclosure, the light-emitting device includes: a first electrode; a second electrode opposite to (e.g., facing) the first electrode; an interlayer between the first electrode and the second electrode and including an emitting layer; and an organometallic compound represented by Formula 1.

[0172] In one or more embodiments,

[0173] The first electrode of the light-emitting device can be an anode,

[0174] The second electrode of the light-emitting device can be a cathode,

[0175] The interlayer can further include a hole transport zone between the first electrode and the emission layer and an electron transport zone between the emission layer and the second electrode,

[0176] The hole transport zone can include a hole injection layer, a hole transport layer, an emission auxiliary layer, an electron blocking layer, or any combination thereof, and

[0177] The electron transport zone can include a hole blocking layer, an electron transport layer, an electron injection layer, an electron control layer, or any combination thereof.

[0178] In one or more embodiments, the emission layer can include an organometallic compound represented by Formula 1. For example, the emission layer can be used to emit green or yellow light having a maximum emission wavelength in a range of about 540 nm to about 590 nm.

[0179] In one or more embodiments, the emission layer can be used to emit green or yellow light having a maximum emission wavelength in a range of about 500 nm to about 600 nm, about 510 nm to about 600 nm, about 520 nm to about 600 nm, about 530 nm to about 600 nm, about 540 nm to about 600 nm, or about 540 nm to about 590 nm.

[0180] In one or more embodiments, the emission layer can include a host and a dopant.

[0181] In one or more embodiments, in the emission layer, the amount of the host can be greater than the amount of the dopant, based on weight.

[0182] In one or more embodiments, the dopant can include an organometallic compound represented by Formula 1.

[0183] In one or more embodiments, the host can include a first host compound and a second host compound. Here, the first host compound can be a hole transport host, and the second host compound can be an electron transport host.

[0184] The term "interlayer" as used herein refers to a single layer and / or multiple layers between the first electrode and the second electrode of the light-emitting device.

[0185] According to one or more embodiments of this disclosure, an electronic device includes a light-emitting device. In one or more embodiments, the electronic device may further include a thin-film transistor. For example, in one or more embodiments, the electronic device may further include a thin-film transistor comprising a source electrode and a drain electrode, wherein a first electrode of the light-emitting device is electrically connected to the source electrode or the drain electrode.

[0186] In one or more embodiments, the electronic device may further include a color filter, a color conversion layer, a touchscreen layer, a polarizing layer, or any combination thereof. Further details regarding the electronic device can be found in the description provided herein.

[0187] According to one or more embodiments of this disclosure, the electronic device includes a light-emitting device.

[0188] In one or more embodiments, the electronic device may be at least one of the following: flat panel display, curved display, computer monitor, medical monitor, television, billboard, indoor light, outdoor light, signal transmission light, head-up display, fully transparent display, partially transparent display, flexible display, rollable display, foldable display, retractable display, laser printer, telephone, portable telephone, tablet PC, tablet computer, personal digital assistant (PDA), wearable device, laptop computer, digital camera, camcorder, viewfinder, microdisplay, three-dimensional (3D) display, virtual reality display, augmented reality display, vehicle, video wall with multiple displays spliced ​​together, theater screen, stadium screen, phototherapy device, and sign.

[0189] Figure 1 Description

[0190] Figure 1 This is a schematic cross-sectional view of a light-emitting device 10 according to one or more embodiments of the present disclosure. The light-emitting device 10 may include a first electrode 110, a sandwich layer 130, and a second electrode 150.

[0191] In the following text, reference will be made to Figure 1 The structure of the light-emitting device 10 according to one or more embodiments and the method of manufacturing the light-emitting device 10 are described in more detail.

[0192] First electrode 110

[0193] exist Figure 1In one or more embodiments, a substrate can be additionally provided and disposed under the first electrode 110 and / or on the second electrode 150. A glass substrate or a plastic substrate can be used as the substrate. In one or more embodiments, the substrate can be a flexible substrate, and can 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.

[0194] The first electrode 110 can be formed by, for example, depositing or sputtering a material for forming the first electrode 110 on the substrate. When the first electrode 110 is an anode, the material for forming the first electrode 110 can be a high work function material that facilitates injection of holes.

[0195] The first electrode 110 can be a reflective electrode, a transreflective electrode, or a transmissive electrode. In one or more embodiments, if (for example, when) the first electrode 110 is a transmissive electrode, the material for forming the first electrode 110 can include indium tin oxide (ITO), indium zinc oxide (IZO), tin oxide (SnO2), zinc oxide (ZnO), or any combination thereof. In one or more embodiments, if (for example, when) the first electrode 110 is a transreflective electrode or a reflective electrode, the material for forming the first electrode 110 can include magnesium (Mg), silver (Ag), aluminum (Al), aluminum-lithium (Al-Li), calcium (Ca), magnesium-indium (Mg-In), magnesium-silver (Mg-Ag), or any combination thereof.

[0196] The first electrode 110 can have a single layer structure including (for example, consisting of) a single layer, or a multi-layer structure including a plurality of layers. In one or more embodiments, the first electrode 110 can have a three-layer structure of ITO / Ag / ITO.

[0197] The interlayer 130

[0198] The interlayer 130 can be on (for example, disposed on) the first electrode 110. The interlayer 130 can include an emission layer.

[0199] The interlayer 130 can further include a hole transport region between the first electrode 110 and the emission layer, and an electron transport region between the emission layer and the second electrode 150.

[0200] In one or more embodiments, the interlayer 130 can further include a metal-containing compound (such as an organometallic compound) (for example, an organometallic compound represented by Formula 1) and / or an inorganic material (such as a quantum dot), etc., in addition to one or more appropriate organic materials.

[0201] In one or more embodiments, the interlayer 130 may include i) two or more emitting units stacked sequentially between the first electrode 110 and the second electrode 150, and ii) a charge generation layer between adjacent emitting units in the two or more emitting units. When the interlayer 130 includes two or more emitting units and a charge generation layer as described herein, the light-emitting device 10 may be a tandem light-emitting device.

[0202] Hole transport region in interlayer 130

[0203] The hole transport region may have: i) a single-layer structure comprising a single layer (e.g., composed of a single layer) of a single material (e.g., composed of a single material), ii) a single-layer structure comprising a single layer (e.g., composed of a single layer) of multiple materials that are different from each other (e.g., composed of multiple materials), or iii) a multi-layer structure comprising multiple layers of multiple materials that are different from each other.

[0204] The hole transport region may include a hole injection layer, a hole transport layer, an emission assist layer, an electron blocking layer, or any combination thereof.

[0205] For example, in one or more embodiments, the hole transport region may have a multilayer structure, including a hole injection layer / hole transport layer structure, a hole injection layer / hole transport layer / emission auxiliary layer structure, a hole injection layer / emission auxiliary layer structure, a hole transport layer / emission auxiliary layer structure, or a hole injection layer / hole transport layer / electron blocking layer structure, wherein the constituent layers in each structure are stacked sequentially from the first electrode 110 in the order described.

[0206] In one or more embodiments, the hole transport region may include a compound represented by Formula 201, a compound represented by Formula 202, or any combination thereof:

[0207] Formula 201

[0208]

[0209] Formula 202

[0210]

[0211] In Equations 201 and 202,

[0212] L 201 To L 204 Each can be independently unsubstituted or by at least one R 10a Replacement C3-C 60 The carbocyclic group is either unsubstituted or has at least one R group. 10a Replacement C1-C 60 Heterocyclic group,

[0213] L 205 It can be *-O-*', *-S-*', or *-N(Q) 201 )-*', unsubstituted or by at least one R 10a Replacement C1-C 20 Alkylene, unsubstituted, or with at least one R 10a Replacement C2-C 20 alkenyl, unsubstituted, or with at least one R 10a Replacement C3-C 60 The carbocyclic group is either unsubstituted or has at least one R group. 10a Replacement C1-C 60 Heterocyclic group,

[0214] xa1 to xa4 can each be an integer selected from 0 to 5 independently.

[0215] xa5 can be an integer selected from 1 to 10.

[0216] R 201 To R 204 and Q 201 Each can be independently unsubstituted or by at least one R 10a Replacement C3-C 60 The carbocyclic group is either unsubstituted or has at least one R group. 10a Replacement C1-C 60 Heterocyclic group,

[0217] R 201 and R 202 Optionally via a single bond, unsubstituted, or by at least one R 10a Substituted C1-C5 alkylene groups or unsubstituted or substituted with at least one R 10a The substituted C2-C5 alkenyl groups are linked together to form an unsubstituted or substituted compound with at least one R group. 10a Replacement C8-C 60 Polycyclic groups (e.g., carbazole group) (e.g., see compound HT16),

[0218] R 203 and R 204 Optionally via a single bond, unsubstituted, or by at least one R 10a Substituted C1-C5 alkylene groups or unsubstituted or substituted with at least one R 10a The substituted C2-C5 alkenyl groups are linked together to form an unsubstituted or substituted compound with at least one R group. 10a Replacement C8-C 60 Polycyclic groups, and

[0219] na1 can be an integer selected from 1 to 4.

[0220] In one or more embodiments, each of Formula 201 and Formula 202 can include at least one of the groups represented by Formula CY201 through Formula CY217:

[0221]

[0222] wherein, in Formula CY201 through Formula CY217, R 10b and R 10c may each be the same as described with respect to R 10a Ring CY 201 through Ring CY 204 may each independently be a C3-C 20 carbocyclyl or a C1-C 20 heterocyclyl, and at least one hydrogen in Formula CY201 through Formula CY217 can be unsubstituted or substituted with R 10a .

[0223] In one or more embodiments, in Formula CY201 through Formula CY217, Ring CY 201 through Ring CY 204 may each independently be a phenyl, a naphthyl, a phenanthryl, or an anthryl.

[0224] In one or more embodiments, each of Formula 201 and Formula 202 can include at least one of the groups represented by Formula CY201 through Formula CY203.

[0225] In one or more embodiments, Formula 201 can include at least one of the groups represented by Formula CY201 through Formula CY203 and at least one of the groups represented by Formula CY204 through Formula CY217.

[0226] In one or more embodiments, in Formula 201, xa1may be 1, R 201 may be a group represented by any one selected from Formula CY201 through Formula CY203, xa2may be 0, and R 202 may be a group represented by any one selected from Formula CY204 through Formula CY207.

[0227] In one or more embodiments, each of Formula 201 and Formula 202 can not include (e.g., can exclude) any of the groups represented by Formula CY201 through Formula CY203.

[0228] In one or more embodiments, each of Formula 201 and Formula 202 can not include (e.g., can exclude) any of the groups represented by Formula CY201 through Formula CY203 and can include at least one of the groups represented by Formula CY204 through Formula CY217.

[0229] In one or more embodiments, each of Formula 201 and Formula 202 can not include (e.g., can exclude) any of the groups represented by Formulas CY201 through CY217.

[0230] In one or more embodiments, the hole transport zone can include (e.g., be selected from) at least one of Compound HT1 through Compound HT46, 4,4',4"-[tris(3- methylphenyl)phenylamino]triphenylamine (m-MTDATA), 4,4',4"-tris(N,N- diphenylamino)triphenylamine (TDATA), 4,4',4"-tris[N-(2-naphthyl)-N- phenylamino]triphenylamine (2-TNATA), N,N'-di(naphthalen-1-yl)-N,N'- diphenyl-benzidine (NPB (NPD)), b-NPB, N,N'-bis(3-methylphenyl)-N,N'- diphenyl-[1,1'-biphenyl]-4,4'-diamine (TPD), Spiro-TPD, Spiro-NPB, methylated NPB, 4,4'-cyclohexylidenebis[N,N-bis(4-methylphenyl)benzenamine] (TAPC), 4,4'- bis[N,N'-(3-methylphenyl)amino]-3,3'-dimethylbiphenyl (HMTPD), 9-(4-tert- butylphenyl)-3,6-bis(triphenylsilyl)-9H-carbazole (CzSi), 4,4',4"-tris(N-carbazolyl) triphenylamine (TCTA), polyaniline / dodecylbenzenesulfonic acid (PANI / DBSA), poly(3,4- ethylenedioxythiophene) / poly(4-styrenesulfonate) (PEDOT / PSS), polyaniline / camphor sulfonic acid (PANI / CSA), polyaniline / poly(4-styrenesulfonate) (PANI / PSS), or any combination thereof:

[0231]

[0232]

[0233]

[0234]

[0235]

[0236] The thickness of the hole transport zone can be from about 50 angstroms to about (e.g., from about to about ). When the hole transport zone includes a hole injection layer, a hole transport layer, or any combination thereof, the thickness of the hole injection layer can be from about to about (e.g., from about to about ), and the thickness of the hole transport layer can be about to about (e.g., about to about ). When the thicknesses of the hole transport zone, the hole injection layer, and the hole transport layer are within the above ranges, satisfactory hole transport characteristics can be obtained without a significant increase in driving voltage.

[0237] The emission auxiliary layer can increase light emission efficiency by compensating for an optical resonance distance according to a wavelength of light emitted by the emission layer, and the electron blocking layer can block electron leakage from the emission layer to the hole transport zone. Materials that can be included in the hole transport zone can be included in the emission auxiliary layer and the electron blocking layer.

[0238] p-dopant

[0239] In one or more embodiments, in addition to the one or more materials described above, the hole transport zone can further include a charge generating material for improving the electrical conductivity properties. The charge generating material can be dispersed uniformly (e.g., substantially uniformly) or non-uniformly in the hole transport zone (e.g., in the form of a single layer including (e.g., consisting of) the charge generating material).

[0240] The charge generating material can be, for example, a p-dopant.

[0241] For example, in one or more embodiments, a lowest unoccupied molecular orbital (LUMO) energy level of the p-dopant can be less than or equal to -3.5 eV.

[0242] In one or more embodiments, the p-dopant can include a quinone derivative, a cyano-containing compound, a compound including an element EL1 and an element EL2, or any combination thereof.

[0243] Non-limiting examples of the quinone derivative can include tetracyanoquinodimethane (TCNQ) and 2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane (F4-TCNQ).

[0244] Non-limiting examples of the cyano-containing compound can include dipyrazino[2,3-f:2',3'-h]quinoxaline-2,3,6,7,10,11-hexanitrile (HAT-CN) and a compound represented by Formula 221.

[0245]

[0246] Formula 221

[0247]

[0248] wherein, in Formula 221,

[0249] R 221 to R 223 may each independently be unsubstituted or substituted with at least one R 10a substituted C3-C 60 carbocyclyl or unsubstituted or substituted with at least one R 10a substituted C1-C 60 heterocyclyl, and

[0250] selected from at least one of R 221 to R 223 at least one of R 60 carbocyclyl or C1-C 60 heterocyclyl: cyano; -F; -Cl; -Br; -I; C1-C 20 alkyl substituted with cyano, -F, -Cl, -Br, -I, or any combination thereof; or any combination thereof.

[0251] In a compound comprising element EL1 and element EL2, element EL1 can be a metal, a metalloid, or any combination thereof (e.g., any suitable combination), and element EL2 can be a non-metal, a metalloid, or any combination thereof (e.g., any suitable combination).

[0252] Non-limiting examples of metals can include (e.g., be) 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 (Co), rhodium (Rh), iridium (Ir), nickel (Ni), palladium (Pd), platinum (Pt), copper (Cu), silver (Ag), and / or gold (Au), etc.); post-transition metals (e.g., zinc (Zn), indium (In), and / or tin (Sn), etc.); and lanthanides (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.).

[0253] Non-limiting examples of metalloids can include silicon (Si), antimony (Sb), and / or tellurium (Te).

[0254] Non-limiting examples of non-metals can include oxygen (O) and / or halogens (e.g., F, Cl, Br, and / or I, etc.).

[0255] Non-limiting examples of compounds comprising element EL1 and element EL2 can 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.

[0256] Non-limiting examples of metal oxides can 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.).

[0257] Non-limiting examples of metal halides can include alkali metal halides, alkaline earth metal halides, transition metal halides, post-transition metal halides, and / or lanthanide metal halides.

[0258] Non-limiting examples of alkali metal halides can include LiF, NaF, KF, RbF, CsF, LiCl, NaCl, KCl, RbCl, CsCl, LiBr, NaBr, KBr, RbBr, CsBr, LiI, NaI, KI, RbI, and / or CsI.

[0259] Non-limiting examples of alkaline earth metal halides can include BeF2, MgF2, CaF2, SrF2, BaF2, BeCl2, MgCl2, CaCl2, SrCl2, BaCl2, BeBr2, MgBr2, CaBr2, SrBr2, BaBr2, BeI2, MgI2, CaI2, SrI2, and / or BaI2.

[0260] Non-limiting examples of transition metal halides can 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, 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 ReI2, etc.), iron(II) 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, 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.), copper(I) halides (e.g., CuF, CuCl, CuBr, and / or CuI, etc.), silver halides (e.g., AgF, AgCl, AgBr, and / or AgI, etc.), and / or gold halides (e.g., AuF, AuCl, AuBr, and / or AuI, etc.).

[0261] Non-limiting examples of post-transition metal halides can include zinc halides (e.g., ZnF2, ZnCl2, ZnBr2, and / or ZnI2, etc.), indium halides (e.g., InI3, etc.), and / or tin halides (e.g., SnI2, etc.).

[0262] Non-limiting 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.

[0263] Non-limiting examples of quasi-metal halides may include antimony halides (e.g., SbCl5, etc.).

[0264] Non-limiting 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, etc.). FeTe, RuTe, OsTe, CoTe, RhTe, IrTe, NiTe, PdTe, PtTe, Cu2Te, CuTe, Ag2Te, AgTe and / or Au2Te, etc.), post-transition metal tellurides (e.g., ZnTe, etc.) and / or lanthanide metal tellurides (e.g., LaTe, CeTe, PrTe, NdTe, PmTe, EuTe, GdTe, TbTe, DyTe, HoTe, ErTe, TmTe, YbTe and / or LuTe, etc.).

[0265] emission layer in interlayer 130

[0266] When the light-emitting device 10 is a full-color light-emitting device, the emitting layer can be patterned as a red emitting layer, a green emitting layer, and / or a blue emitting layer, depending on the sub-pixel. In one or more embodiments, the emitting layer may have a stacked structure of two or more layers selected from red, green, and blue emitting layers, wherein the two or more layers are in contact with or separated from each other to emit white light (e.g., combined white light). In one or more embodiments, the emitting layer may include two or more materials selected from red, green, and blue emitting materials, wherein the two or more materials are mixed with each other in a single layer to emit white light (e.g., combined white light). For example, in one or more embodiments, the emitting layer can be used to emit green or yellow light.

[0267] In one or more embodiments, the emitter layer may include an organometallic compound represented by Formula 1 as described herein.

[0268] The emitter layer may include a host and a dopant.

[0269] In one or more embodiments, the dopant can include the organometallic compound represented by Formula 1 described herein. In one or more embodiments, the dopant can include a phosphorescent dopant, a fluorescent dopant, and / or a combination (e.g., any suitable combination) thereof in addition to the organometallic compound represented by Formula 1. Descriptions of the phosphorescent dopant and / or the fluorescent dopant, etc. that can be additionally included in the emission layer will be provided below in addition to the organometallic compound represented by Formula 1.

[0270] The amount of the dopant in the emission layer can be in the range of about 0.01 parts by weight to about 15 parts by weight based on 100 parts by weight of the host.

[0271] In one or more embodiments, the emission layer can include a quantum dot.

[0272] In one or more embodiments, the emission layer can include a delayed fluorescence material. The delayed fluorescence material can act as a host or a dopant in the emission layer.

[0273] The thickness of the emission layer can be in the range of about to about (e.g., about to about ). When the thickness of the emission layer is in this range, excellent or appropriate light emission characteristics can be obtained without a significant increase in driving voltage.

[0274] The host

[0275] In one or more embodiments, the host can include, for example, a carbazole-containing compound, an anthracene-containing compound, or any combination thereof.

[0276] In one or more embodiments, the host can include a compound represented by Formula 301:

[0277] Formula 301

[0278] [Ar 301 ] xb11 -[(L 301 ) xb1 -R 301 ] xb21 ,

[0279] In Formula 301,

[0280] Ar 301 and L 301 may each independently be C3-C 10a carbocyclyl unsubstituted or substituted with at least one R 60 , or C1-C 10a heterocyclyl unsubstituted or substituted with at least one R 60 ,

[0281] xb11 can be 1, 2, or 3.

[0282] xb1 can be an integer selected from 0 to 5.

[0283] R 301 It can be hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, unsubstituted, or with at least one R. 10a Replacement C1-C 60 Alkyl, unsubstituted, or with at least one R 10a Replacement C2-C 60 alkenyl, unsubstituted or with at least one R 10a Replacement C2-C 60 Alkyne group, unsubstituted or with at least one R 10a Replacement C1-C 60 Alkyl, unsubstituted, or with at least one R 10a Replacement C3-C 60 Carbocyclic, unsubstituted, or with at least one R 10a Replacement C1-C 60 Heterocyclic groups, -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 ),

[0284] xb21 can be an integer selected from 1 to 5, and

[0285] Q 301 To Q 303 Each is the same as described relative to Q1.

[0286] In one or more embodiments, if (for example, when) xb11 in equation 301 is 2 or greater, then two or more Ar 301 They can be connected to each other via a single key.

[0287] In one or more embodiments, the body may include a compound represented by Formula 301-1, a compound represented by Formula 301-2, or any combination thereof:

[0288] Formula 301-1

[0289]

[0290] Formula 301-2

[0291]

[0292] wherein, in Formula 301-1 and Formula 301-2,

[0293] Ring A 301 to Ring A 304 may each independently be unsubstituted or substituted with at least one R 10a substituted C3-C 60 carbocyclyl or heterocyclyl, each of which is unsubstituted or substituted with at least one R 10a substituted C1-C 60 heterocyclyl,

[0294] X 301 may be O, S, N-[(L 304 ) xb4 -R 304 ], C(R 304 )(R 305 ) or Si(R 304 )(R 305 ),

[0295] xb22and xb23may each independently be 0, 1, or 2,

[0296] L 301 , xb1and R 301 each are the same as described herein,

[0297] L 302 to L 304 may each independently be the same as described with respect to L 301 ,

[0298] xb2to xb4may each independently be the same as described with respect to xb1, and

[0299] R 302 to R 305 and R 311 to R 314 may each be the same as described with respect to R 301 .

[0300] In one or more embodiments, the host can include an alkaline earth metal complex, a post-transition metal complex, or any combination thereof. In one or more embodiments, the host can include a Be complex (e.g., compound H55), a Mg complex, a Zn complex, or any combination thereof.

[0301] In one or more embodiments, the host can include one (e.g., any one) selected from the group consisting of Compound H1 to Compound H128; 9,10-di(2-naphthyl)anthracene (ADN); 2-methyl-9,10-bis(naphthalen-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-bis(carbazol-9-yl)benzene (mCP); 1,3,5-tris(carbazol-9-yl)benzene (TCP); or any combination thereof:

[0302]

[0303]

[0304]

[0305]

[0306]

[0307]

[0308]

[0309] In one or more embodiments, the host can include a first host compound and a second host compound.

[0310] In one or more embodiments, the first host compound can be a hole-transporting host.

[0311] In one or more embodiments, the second host compound can be an electron-transporting host.

[0312] In one or more embodiments, the term "hole-transporting host" as used herein can be a compound that includes a hole-transporting moiety.

[0313] In one or more embodiments, the term "electron-transporting host" as used herein can be a compound that not only includes an electron-transporting moiety but also has ambipolar properties.

[0314] The terms "hole-transporting host" and "electron-transporting host" can be understood individually according to the relative difference between hole mobility and electron mobility in hole-transporting hosts and electron-transporting hosts. For example, even (e.g., when) an electron-transporting host does not include an electron-transporting moiety, an ambipolar compound that exhibits a relatively higher electron mobility than a hole-transporting host can be understood as an electron-transporting host.

[0315] In one or more embodiments, the hole transport main body can be represented by any one selected from the group consisting of Formula 311-1 to Formula 311-6, and the electron transport main body can be represented by any one selected from the group consisting of Formula 312-1 to Formula 312-4 and Formula 313:

[0316] Formula 311-1

[0317]

[0318] Formula 311-2

[0319]

[0320] Formula 311-3

[0321]

[0322] Formula 311-4

[0323]

[0324] Formula 311-5

[0325]

[0326] Formula 311-6

[0327]

[0328] Formula 312-1

[0329]

[0330] Formula 312-2

[0331]

[0332] Formula 312-3

[0333]

[0334] Formula 312-4

[0335]

[0336] Formula 313

[0337]

[0338] Formula 313A

[0339]

[0340] wherein, in the formulae 311-1 to 311-6, 312-1 to 312-4, 313 and 313A,

[0341] Ar 301 may be unsubstituted or substituted by at least one R 10a substituted C3-C 60 carbocyclyl or unsubstituted or substituted by at least one R 10a substituted C1-C 60 heterocyclyl,

[0342] A 301 to A 304 may each independently be C3-C 60 carbocyclyl or C1-C 60 heterocyclyl,

[0343] X 301 may be O, S, N-[(L 304 ) xb4 -R 304 ], B-[(L 304 ) xb4 -R 304 ], C[(L 304 ) xb4 -R 304 ][(L 305 ) xb5 -R 305 ] or Si[(L 304 ) xb4 -R 304 ][(L 305 ) xb5 -R 305 ],

[0344] X 302 , Y 301 and Y 302 may each independently be a single bond, O, S, N-[(L 305 ) xb5 -R 305 ], B-[(L 305 ) xb5 -R 305 ], C[(L 304 ) xb4 -R 304 ][(L 305 ) xb5 -R 305 ], Si[(L 304 ) xb4 -R 304 ][(L 305 ) xb5 -R 305 ] or S(=O)2,

[0345] xb1 to xb5 can each be 0, 1, 2, 3, 4 or 5,

[0346] xb6 can be 1, 2, 3, 4 or 5,

[0347] X 321 to X 328 may each independently be N or C[(L 324 ) xb24 -R 324 ],

[0348] Y 321 may be *-O-*', *-S-*', *-N-[(L 325 ) xb25 -R 325 ]-*', *-C[(L 325 ) xb25 -R 325 ][(L 326 ) xb26 -R 326 ]-*', *-C[(L 325 ) xb25 -R 325 ]=C[(L 326 ) xb26 -R 326 ]-*', *-C[(L 325 ) xb25 -R 325 ]=N-*' or *-N=C[(L 326 ) xb26 -R 326 ]-*',

[0349] k21 can be 0, 1 or 2, wherein Y 321 is absent if (e.g., when) k21 is 0,

[0350] xb21 to xb26 can each independently be 0, 1, 2, 3, 4 or 5,

[0351] A 31 , A 32 and A 34 may each independently be C3-C 60 carbocyclyl or C1-C 30 heterocyclyl,

[0352] A 33 may be a group represented by formula 313A,

[0353] X 31 may be N-[(L 335 ) xb35 -(R335 )]、O、S、Se、C[(L 335 ) xb35 -(R 335 )][(L 336 ) xb36 -(R 336 )] or Si[(L 335 ) xb35 -(R 335 )][(L 336 ) xb36 -(R 336 )],

[0354] xb31 to xb36 can each be independently 0, 1, 2, 3, 4 or 5.

[0355] xb42 to xb44 can each independently be 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, or 10.

[0356] L 301 To L 306 L 321 To L 326 and L 331 To L 336 Each can be independently a single bond, unsubstituted, or bonded by at least one R. 10a Replacement C1-C 20 Alkylene, unsubstituted, or with at least one R 10a Replacement C2-C 20 alkenyl, unsubstituted, or with at least one R 10a Replacement C2-C 20 alkyne group, unsubstituted or with at least one R 10a Replacement C3-C 10 Cycloalkylene, unsubstituted, or with at least one R 10a Replacement C1-C 10 Heterocyclic alkyl, unsubstituted, or with at least one R 10a Replacement C3-C 10 Cycloalkenyl, unsubstituted or with at least one R 10a Replacement C1-C 10 Heterocyclic alkenyl, unsubstituted or with at least one R 10a Replacement C6-C 60 aryl, unsubstituted or with at least one R 10a Replacement C1-C 60 heteroaryl, unsubstituted or with at least one R 10a Substituted divalent nonaromatic fused polycyclic groups or unsubstituted groups or groups modified by at least one R 10a Substituted divalent non-aromatic fused heterocyclic groups,

[0357] R 301 to R 305 , R 311 to R 314 , R 321 to R 324 and R 326 to R 336 may each independently be hydrogen, deuterium, -F, -CI, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazino, hydrazono, unsubstituted or substituted by at least one R 10a substituted C1-C 60 alkyl, unsubstituted or substituted by at least one R 10a substituted C2-C 60 alkenyl, unsubstituted or substituted by at least one R 10a substituted C2-C 60 alkynyl, unsubstituted or substituted by at least one R 10a substituted C1-C 60 alkoxy, unsubstituted or substituted by at least one R 10a substituted C3-C 10 cycloalkyl, unsubstituted or substituted by at least one R 10a substituted C1-C 10 heterocycloalkyl, unsubstituted or substituted by at least one R 10a substituted C3-C 10 cycloalkenyl, unsubstituted or substituted by at least one R 10a substituted C1-C 10 heterocycloalkenyl, unsubstituted or substituted by at least one R 10a substituted C6-C 60 aryl, unsubstituted or substituted by at least one R 10a substituted C6-C 60 aryloxy, unsubstituted or substituted by at least one R 10a substituted C6-C 60 arylthio, unsubstituted or substituted by at least one R 10a substituted C1-C 60 heteroaryl, unsubstituted or substituted by at least one R 10a substituted C1-C 60 heteroaryloxy, unsubstituted or substituted by at least one R 10a substituted C1-C 60 heteroarylthio, unsubstituted or substituted by at least one R 10a substituted monovalent non-aromatic fused polycyclic group, unsubstituted or substituted by at least one R 10aa substituted monovalent non-aromatic fused heteropolycyclic group, -Si(Q1)(Q2)(Q3), -B(Q1)(Q2), -N(Q1)(Q2), -P(Q1)(Q2), -C(=O)(Q1), -S(=O)(Q1), -S(=O)2(Q1), -P(=O)(Q1)(Q2), or -P(=S)(Q1)(Q2),

[0358] selected from R 321 to R 326 two or more adjacent groups among R 10a substituted C3-C 60 carbocyclyl or C1-C 10a substituted heterocyclyl, 60

[0359] R 10a may be:

[0360] deuterium, -F, -CI, -Br, -I, hydroxyl, cyano, amidino, hydrazino, hydrazone, or nitro;

[0361] each unsubstituted or substituted C1-C 60 alkyl, C2-C 60 alkenyl, C2-C 60 alkynyl, or C1-C 60 alkoxy: deuterium, -F, -CI, -Br, -I, hydroxyl, cyano, nitro, C3-C 60 carbocyclyl, C1-C 60 heterocyclyl, C6-C 60 aryloxy, C6-C 60 arylthio, C1-C 60 heteroaryloxy, C1-C 60 heteroarylthio, 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;

[0362] each unsubstituted or substituted C3-C 60 ​carbocyclyl, C1-C 60 heterocyclyl, C6-C 60 aryloxy, C6-C 60 arylthio, C1-C 60 heteroaryloxy or C1-C 60 heteroarylthio: deuterium, -F, -CI, -Br, -I, hydroxyl, cyano, nitro, C1-C 60 alkyl, C2-C 60 alkenyl, C2-C 60 alkynyl, C1-C 60 alkoxy, C3-C 60 carbocyclyl, C1-C 60 heterocyclyl, C6-C 60 aryloxy, C6-C 60 arylthio, C1-C 60 heteroaryloxy, C1-C 60 heteroarylthio, 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

[0363] -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 ), and

[0364] Q1to Q3, Q 11 to Q 13 , Q 21 to Q 23 and Q 31 to Q 33may each independently be: hydrogen; deuterium; -F; -CI; -Br; -I; hydroxyl; cyano; amidino; hydrazino; hydrazone; nitro; C1-C 60 alkyl; C2-C 60 alkenyl; C2-C 60 alkynyl; C1-C 60 alkoxy; each unsubstituted or substituted with deuterium, -F, cyano, C1-C 60 alkyl, C1-C 60 alkoxy, phenyl, biphenyl, or any combination thereof; C3-C 60 carbocyclyl, or C1-C 60 heterocyclyl; C7-C 60 aralkyl; or C2-C 60 heteroaralkyl.

[0365] In one or more embodiments, the first host compound and the second host compound can form an exciplex.

[0366] phosphorescent dopant

[0367] The phosphorescent dopant can include at least one transition metal as a central metal.

[0368] The phosphorescent dopant can include a monodentate ligand, a bidentate ligand, a tridentate ligand, a tetradentate ligand, a pentadentate ligand, a hexadentate ligand, or any combination thereof.

[0369] The phosphorescent dopant can be electrically neutral.

[0370] In one or more embodiments, the phosphorescent dopant can include an organometallic compound represented by Formula 1.

[0371] In one or more embodiments, the phosphorescent dopant can include an organometallic compound represented by Formula 401:

[0372] Formula 401

[0373] M(L 401 ) xc1 (L 402 ) xc2

[0374] Formula 402

[0375]

[0376] wherein, in Formula 401 and Formula 402,

[0377] M can be a transition metal (e.g., Ir, Pt, Pd, Os, Ti, Au, Hf, Eu, Tb, Rh, Re, or Tm),

[0378] L 401may 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,

[0379] L 402 may be an organic ligand, and xc2may be 0, 1, 2, 3, or 4, wherein, if (for example, when) xc2is 2 or greater, two or more L 402 may be the same as or different from each other,

[0380] X 401 and X 402 may each independently be nitrogen or carbon,

[0381] ring A 401 and ring A 402 may each independently be C3-C 60 carbocyclyl or C1-C 60 heterocyclyl,

[0382] T 401 may be a single bond, *-O-*, *-S-*, *-C(=O)-*, *-N(Q 411 )-*, *-C(Q 411 )(Q 412 )-*, *-C(Q 411 )=C(Q 412 )-*, *-C(Q 411 )=* or =C=*,

[0383] X 403 and X 404 may each independently be a chemical bond (e.g., a covalent bond or a coordinate bond), O, S, N(Q 413 ), B(Q 413 ), P(Q 413 ), C(Q 413 )(Q 414 ) or Si(Q 413 )(Q 414 ),

[0384] Q 411 through Q 414 may each independently be the same as described with respect to Q1,

[0385] R 401 and R 402 may each independently be hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, C1-C 10a alkyl unsubstituted or substituted with at least one R 20 may each independently be hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, C1-C10a Replacement C1-C 20 Alkyl, unsubstituted, or with at least one R 10a Replacement C3-C 60 Carbocyclic, unsubstituted, or with at least one R 10a Replacement C1-C 60 Heterocyclic groups, -Si(Q) 401 (Q) 402 (Q) 403 -N(Q) 401 (Q) 402 -B(Q) 401 (Q) 402 -C(=O)(Q) 401 -S(=O)2(Q) 401 ) or -P(=O)(Q 401 (Q) 402 ),

[0386] Q 401 To Q 403 Each can be independently described as identical to the one relative to Q1.

[0387] xc11 and xc12 can each be an integer selected from 0 to 10 independently, and

[0388] In Equation 402, * and *' each indicate the binding site with M in Equation 401.

[0389] In one or more embodiments, in formula 402, i)X 401 It can be nitrogen, and X 402 It can be carbon, or ii)X 401 and X 402 Each of them can be nitrogen.

[0390] In one or more embodiments, if (for example, when) xc1 in equation 401 is 2 or greater, then two or more L 401 The two rings A in 401 Optionally via T as a linking group 402 Connected to each other, and / or two or more L 401 The two rings A in 402 Optionally via T as a linking group 403 They are interconnected (see compounds PD1 through PD4 and PD7). T 402 and T 403 Each and relative to T 401 The descriptions are the same.

[0391] In Equation 401, L 402 It can be an organic ligand. In one or more embodiments, L402 It may include halogens, diketone groups (e.g., acetylacetone groups), carboxylic acid groups (e.g., pyridine carboxyl groups), -C (=O), isonitrile groups, -CN groups, phosphorus-containing groups (e.g., phosphine groups and / or phosphite groups, etc.) or any combination thereof.

[0392] In one or more embodiments, the phosphorescent dopant may include (e.g.) at least one of compounds PD1 to PD39 (e.g., selected from at least one of them) or any combination thereof:

[0393]

[0394]

[0395]

[0396] Fluorescent dopants

[0397] Fluorescent dopants may include amine-containing compounds, styrene-containing compounds, or any combination thereof.

[0398] For example, in one or more embodiments, the fluorescent dopant may include a compound represented by Formula 501:

[0399] Formula 501

[0400]

[0401] In Equation 501,

[0402] Ar 501 L 501 To L 503 R 501 and R 502 Each can be independently unsubstituted or by at least one R 10a Replacement C3-C 60 The carbocyclic group is either unsubstituted or has at least one R group. 10a Replacement C1-C 60 Heterocyclic group,

[0403] xd1 to xd3 can each be independently 0, 1, 2, or 3, and

[0404] xd4 can be 1, 2, 3, 4, 5 or 6.

[0405] In one or more embodiments, Ar in Formula 501 501 It can be a fused ring group in which three or more monocyclic groups are fused together (e.g., anthracene, 1,2-benzophenanthrene and / or pyrene, etc.).

[0406] In one or more embodiments, xd4in Formula 501 can be 2.

[0407] In one or more embodiments, the fluorescent dopant can include one (e.g., selected from any of) Compound FD1 through Compound FD36; 4,4'-bis(2,2-diphenylvinyl)-1,1'-biphenyl (DPVBi); 4,4'-bis[4-(N,N-diphenylamino)styryl]biphenyl (DPAVBi); or any combination thereof:

[0408]

[0409]

[0410]

[0411] delayed fluorescence material

[0412] In one or more embodiments, the emission layer can further include a delayed fluorescence material.

[0413] The delayed fluorescence material described herein can be selected from a compound capable of emitting delayed fluorescence based on a delayed fluorescence emission mechanism.

[0414] Depending on the type (kind) of other material included in the emission layer, the delayed fluorescence material included in the emission layer can act as a host or a dopant.

[0415] In one or more embodiments, a difference (e.g., an absolute value of the difference) between a triplet energy level (eV) of the delayed fluorescence material and a singlet energy level (eV) of the delayed fluorescence material can be in a range of about 0 eV to about 0.5 eV. When the difference between the triplet energy level (eV) of the delayed fluorescence material and the singlet energy level (eV) of the delayed fluorescence material satisfies the above range, upconversion of the delayed fluorescence material from a triplet state to a singlet state can be effectively occurred, and thus, the light emitting device 10 can have improved light emitting efficiency.

[0416] For example, in one or more embodiments, the delayed fluorescence material can include: i) a material including at least one electron donor (e.g., a π-electron rich C3-C 60 cyclic group such as a carbazolyl group) and at least one electron acceptor (e.g., a sulfoxide group, a cyano group, and / or a π- electron deficient nitrogen-containing C1-C 60 heterocyclic group, etc.), and / or ii) a material including a C8-C 60 polycyclic group in which two or more cyclic groups are fused to each other while sharing boron (B).

[0417] Non-limiting examples of the delayed fluorescence material can include (e.g., be selected from) at least one of compounds DF1 to DF9:

[0418]

[0419] Quantum dots

[0420] In one or more embodiments, the emission layer can include quantum dots.

[0421] In the present disclosure, quantum dots can refer to a crystal of a semiconductor compound. Depending on the size of the crystal, quantum dots can be used to emit light of one or more appropriate emission wavelengths. By adjusting the element ratio in the quantum dot compound, quantum dots can be used to emit light of one or more appropriate emission wavelengths.

[0422] The diameter of the quantum dots can be in the range of, for example, about 1 nm to about 10 nm. In the present disclosure, when the quantum dots or quantum dot particles are spherical, the "diameter" indicates the particle diameter or average particle diameter, and when the particles are non-spherical, the "diameter" indicates the length of the long axis or the average length of the long axis. The diameter of the particles can be measured using a scanning electron microscope or a particle size analyzer. As the particle size analyzer, for example, a HORIBA, LA-950 laser particle size analyzer can be used. When the size of the particles is measured using the particle size analyzer, the average particle diameter is referred to as D 50 . D 50 indicates the average diameter of the particles corresponding to 50 vol% of the particles in the cumulative volume of the particle size distribution (e.g., cumulative distribution), and indicates the value corresponding to 50% of the particle size from the smallest particle size in the distribution curve accumulated in order of the smallest particle size to the largest particle size, when the total number of particles is 100%.

[0423] The quantum dots can be synthesized by a wet chemical process, a metal organic chemical vapor deposition (MOCVD) process, a molecular beam epitaxy (MBE) process, or any process similar thereto.

[0424] The wet chemical process is a method including mixing a precursor material of the quantum dots with an organic solvent and then growing a quantum dot particle crystal. When the quantum dot particle crystal grows, the organic solvent naturally serves as a dispersant coordinated with the surface of the quantum dot particle, and the growth of the quantum dot particle crystal can be controlled. Therefore, the wet chemical process can be easier than a vapor deposition method such as a metal organic chemical vapor deposition (MOCVD) process and / or a molecular beam epitaxy (MBE) process, etc., and is capable of controlling the growth of the quantum dot particle crystal through a low-cost process.

[0425] The quantum dots can include: a Group III-VI semiconductor compound; a Group II-VI semiconductor compound; a Group III-V semiconductor compound; a Group I-III-VI semiconductor compound; a Group IV-VI semiconductor compound; a Group IV element or compound; or any combination thereof.

[0426] Non-limiting examples of Group II-VI semiconductor compounds can include: binary compounds such as CdS, CdSe, CdTe, ZnS, ZnSe, ZnTe, ZnO, HgS, HgSe, HgTe, MgSe, and / or MgS, etc.; ternary compounds such as CdSeS, CdSeTe, CdSTe, ZnSeS, ZnSeTe, ZnSTe, HgSeS, HgSeTe, HgSTe, CdZnS, CdZnSe, CdZnTe, CdHgS, CdHgSe, CdHgTe, HgZnS, HgZnSe, HgZnTe, MgZnSe, and / or MgZnS, etc.; quaternary compounds such as CdZnSeS, CdZnSeTe, CdZnSTe, CdHgSeS, CdHgSeTe, CdHgSTe, HgZnSeS, HgZnSeTe, and / or HgZnSTe, etc.; or any combination thereof.

[0427] Non-limiting examples of Group III-V semiconductor compounds can include: binary compounds such as GaN, GaP, GaAs, GaSb, AlN, AlP, AlAs, AlSb, InN, InP, InAs, and / or InSb, etc.; ternary compounds such as GaNP, GaNAs, GaNSb, GaPAs, GaPSb, AlNP, AlNAs, AlNSb, AlPAs, AlPSb, InGaP, InNP, InAlP, InNAs, InNSb, InPAs, and / or InPSb, etc.; quaternary compounds such as GaAlNP, GaAlNAs, GaAlNSb, GaAlPAs, GaAlPSb, GaInNP, GaInNAs, GaInNSb, GaInPAs, GaInPSb, InAlNP, InAlNAs, InAlNSb, InAlPAs, and / or InAlPSb, etc.; or any combination thereof. In one or more embodiments, the Group III-V semiconductor compound can further include a Group II element. Non-limiting examples of Group III-V semiconductor compounds further including a Group II element can include InZnP, InGaZnP, and / or InAlZnP, etc.

[0428] Non-limiting examples of Group III-VI semiconductor compounds can include binary compounds such as GaS, Ga2S3, GaSe, Ga2Se3, GaTe, InS, InSe, In2Se3, and / or InTe; ternary compounds such as InGaS3and / or InGaSe3, etc.; or any combination thereof.

[0429] Non-limiting examples of Group I-III-VI semiconductor compounds can 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, AgInGaSe2, AgInGaSe, CuInGaS, and / or CuInGaS2, etc.; or any combination thereof.

[0430] Non-limiting examples of Group IV-VI semiconductor compounds can include (e.g., be) 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 combinations (e.g., any suitable combination) thereof.

[0431] Examples of Group IV elements or compounds can include single element materials such as Si and / or Ge, etc.; binary compounds such as SiC and / or SiGe, etc.; or any combination thereof.

[0432] Each element included in a multi-element compound (such as binary compounds, ternary compounds, and quaternary compounds) can be present in the particle in a substantially uniform concentration or a non-uniform concentration. For example, the above formula refers to the type (kind) of elements included in the compound, and the proportion of elements in the compound can vary. For example, AgInGaS2may refer to AgIn x Ga 1-x S2(where 0 < x < 1).

[0433] In one or more embodiments, the quantum dots can have a single structure in which the concentration of each element in the quantum dot is substantially uniform, or a core-shell double structure. For example, the material included in the core and the material included in the shell can be different from each other.

[0434] The shell of the quantum dot can act as a protective layer that prevents chemical modification of the core to maintain the semiconductor property and / or can act as a charging layer that imparts electrophoretic properties to the quantum dot. The shell can be a single layer or multiple layers. The interface between the core and the shell can have a concentration gradient in which the concentration of the element present in the shell decreases toward the center of the core.

[0435] Examples of the shell of the quantum dot can include: an oxide of a metal or an oxide of a non-metal; a semiconductor compound; or any combination thereof. Non-limiting examples of the oxide of a metal or the oxide of a non-metal can include: a binary compound such as SiO2, Al2O3, TiO2, ZnO, MnO, Mn2O3, Mn3O4, CuO, FeO, Fe2O3, Fe3O4, CoO, Co3O4, and / or NiO, etc.; a ternary compound such as MgAl2O4, CoFe2O4, NiFe2O4, and / or CoMn2O4, etc.; or any combination thereof. Examples of the semiconductor compound can include: a Group III-VI semiconductor compound as described herein; a Group II-VI semiconductor compound; a Group III-V semiconductor compound; a Group I-III-VI semiconductor compound; a Group IV-VI semiconductor compound; or any combination thereof. Examples of the semiconductor compound suitable as the shell can 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.

[0436] Each element included in the multi-element compound such as the binary compound and the ternary compound can be present in the particle in a substantially uniform concentration or a non-uniform concentration. For example, the above formula refers to the type (kind) of the element included in the compound, and the proportion of the element in the compound can vary.

[0437] The full width at half maximum (FWHM) of the emission spectrum of the quantum dot can be about 45 nm or less, for example, about 40 nm or less, or for example, about 30 nm or less, and when in these ranges, the color purity and / or color reproducibility of the quantum dot can be improved. In addition, because the light emitted by the quantum dot is emitted in all directions, a wide viewing angle can be improved.

[0438] In addition, the quantum dot can be in the form of a nanoparticle, a nanotube, a nanowire, a nanofiber, and / or a nanoplate, etc., for example, a spherical nanoparticle, a cone nanoparticle, a multi-armed nanoparticle, or a cubic nanoparticle.

[0439] By adjusting the size of the quantum dots, the energy band gap of the quantum dots can be adjusted, and thus, light of one or more appropriate wavelength bands can be obtained in the quantum dot emission layer. Therefore, by using the aforementioned quantum dots (e.g., using quantum dots or quantum dot compounds having different element ratios in different sizes), a light emitting device that emits light of one or more appropriate wavelength bands can be implemented. In more detail, the size of the quantum dots or the ratio of the elements in the quantum dot compound can be selected to ensure that the quantum dots emit red light, green light, and / or blue light. In addition, quantum dots having appropriate sizes can be configured to emit white light by emitting light of one or more appropriate colors in combination.

[0440] Electron transport zone in interlayer 130

[0441] The electron transport zone can have: i) a single layer structure including (e.g., consisting of) a single layer including (e.g., consisting of) a single material, ii) a single layer structure including (e.g., consisting of) a single layer including (e.g., consisting of) a plurality of materials different from each other, or iii) a multi-layer structure including a plurality of layers including a plurality of materials different from each other.

[0442] The electron transport zone can include a buffer layer, a hole blocking layer, an electron control layer, an electron transport layer, an electron injection layer, or any combination thereof.

[0443] For example, in one or more embodiments, the electron transport zone can 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, in which the constituent layers in each structure can be sequentially stacked in the order recited from the emission layer.

[0444] In one or more embodiments, the electron transport zone (e.g., a buffer layer, a hole blocking layer, an electron control layer, or an electron transport layer in the electron transport zone) can include a nitrogen-containing C1-C 60 Metal-free compound of heterocyclyl.

[0445] For example, in one or more embodiments, the electron transport zone can include a compound represented by Formula 601:

[0446] Formula 601

[0447] [Ar 601 ] xe11 -[(L 601 ) xe1 -R 601 ] xe21 ,

[0448] wherein, in formula 601,

[0449] Ar 601 and L 601 may each independently be unsubstituted or substituted with at least one R 10a substituted C3-C 60 carbocyclyl, or unsubstituted or substituted with at least one R 10a substituted C1-C 60 heterocyclyl,

[0450] xe11may be 1, 2, or 3,

[0451] xe1may be 0, 1, 2, 3, 4, or 5,

[0452] R 601 may be unsubstituted or substituted with at least one R 10a substituted C3-C 60 carbocyclyl, unsubstituted or substituted with at least one R 10a substituted C1-C 60 heterocyclyl, -Si(Q 601 )(Q 602 )(Q 603 ), -C(=O)(Q 601 ), -S(=O)2(Q 601 ), or -P(=O)(Q 601 )(Q 602 ),

[0453] Q 601 through Q 603 each are the same as described with respect to Q1,

[0454] xe21may be 1, 2, 3, 4, or 5, and

[0455] at least one selected from Ar 601 , L 601 , and R 601 may each independently be unsubstituted or substituted with at least one R 10a substituted n- electron-deficient nitrogen-containing C1-C 60 heterocyclyl.

[0456] For example, if (e.g., when) xe11in formula 601 is 2 or greater, two or more Ar 601 may be connected to each other via a single bond.

[0457] In one or more embodiments, Ar 601 in formula 601 can be unsubstituted or substituted with at least one R 10a substituted anthryl.

[0458] In one or more embodiments, the electron transport zone can include a compound represented by Formula 601-1 :

[0459] Formula 601-1

[0460]

[0461] wherein, in Formula 601-1,

[0462] X 614 may be N or C(R 614 ), X 615 may be N or C(R 615 ), X 616 may be N or C(R 616 ), and at least one of X 614 to X 616 may be N,

[0463] L 611 to L 613 each are the same as described with respect to L 601 ,

[0464] xe611 to xe613 each are the same as described with respect to xe1,

[0465] R 611 to R 613 each are the same as described with respect to R 601 , and

[0466] R 614 to R 616 may each independently be hydrogen, deuterium, -F, -CI, -Br, -I, hydroxyl, cyano, nitro, C1-C 20 alkyl, C1-C 20 alkoxy, C3-C 10a carbocyclyl unsubstituted or substituted with at least one R 60 , or C1-C 10a heterocyclyl unsubstituted or substituted with at least one R 60 .

[0467] In one or more embodiments, xe1 and xe611 to xe613 in Formula 601 and Formula 601-1 can each independently be 0, 1, or 2.

[0468] In one or more embodiments, the electron transport zone can include (e.g., be selected from) at least one of compounds ET1 to ET45; 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline (BCP); 4,7-diphenyl-1,10-phenanthroline (Bphen); tris(8-hydroxyquinoline)aluminum (Alq3); bis(2-methyl-8-hydroxyquinoline-N1,O8)-(1,1'-biphenyl-4- hydroxy)aluminum (BAlq); 3-(4-biphenyl)-4-phenyl-5-tert-butylphenyl-1,2,4-triazole (TAZ); 4-(naphthalen-1-yl)-3,5-diphenyl-4H-1,2,4-triazole (NTAZ); diphenyl[4-(triphenylsilyl)phenyl]phosphine oxide (TSPO1); 2,2',2"-(1,3,5-benzene- triyl)-tris(1-phenyl-1H-benzimidazole) (TPBI); or any combination thereof:

[0469]

[0470]

[0471]

[0472] The thickness of the electron transport zone can be about to about (e.g., about to about ). When the electron transport zone 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 can each independently be in a range of about to about (e.g., about to about ), and the thickness of the electron transport layer can be in a range of about to about (e.g., about to about ). When the thickness of the buffer layer, the hole blocking layer, the electron control layer, the electron transport layer, and / or the electron transport zone is in these ranges, satisfactory electron transport characteristics can be obtained without significantly increasing the driving voltage.

[0473] In one or more embodiments, the electron transport zone (e.g., an electron transport layer in the electron transport zone) can further include a metal-containing material in addition to the one or more materials described previously.

[0474] The metal-containing material can include an alkali metal complex, an alkaline earth metal complex, or any combination thereof. The metal ion of the alkali metal complex can be a Li ion, a Na ion, a K ion, a Rb ion, or a Cs ion, and the metal ion of the alkaline earth metal complex can be a Be ion, a Mg ion, a Ca ion, a Sr ion, or a Ba ion. The ligand coordinated to the metal ion of the alkali metal complex or the metal ion of the alkaline earth metal complex can include a hydroxyquinoline, a hydroxyisoquinoline, a hydroxybenzoquinoline, a hydroxyacridine, a hydroxyphenanthridine, a hydroxyphenyl-oxazole, a hydroxyphenyl-thiazole, a hydroxyphenyl-oxadiazole, a hydroxyphenyl-thiadiazole, a hydroxyphenyl-pyridine, a hydroxyphenyl-benzimidazole, a hydroxyphenyl-benzothiazole, a bipyridine, a phenanthroline, a cyclopentadiene, or any combination thereof.

[0475] In one or more embodiments, the metal-containing material can include a Li complex. The Li complex can include, for example, compound ET-D1 (Liq) or compound ET-D2:

[0476]

[0477] In one or more embodiments, the electron transport region can include an electron injection layer that facilitates injection of electrons from the second electrode 150. The electron injection layer can directly contact the second electrode 150.

[0478] The electron injection layer can have: i) a single-layer structure that includes (e.g., consists of) a single layer that includes (e.g., consists of) a single material, ii) a single-layer structure that includes (e.g., consists of) a single layer that includes (e.g., consists of) a plurality of materials that are different from one another, or iii) a multi-layer structure that includes a plurality of layers that include a plurality of materials that are different from one another.

[0479] The electron injection layer can include an alkali metal, an alkaline earth metal, a rare earth metal, an alkali metal-containing compound, an alkaline earth metal-containing compound, a rare earth metal-containing compound, an alkali metal complex, an alkaline earth metal complex, a rare earth metal complex, or any combination thereof.

[0480] The alkali metal can include Li, Na, K, Rb, Cs, or any combination thereof. The alkaline earth metal can include Mg, Ca, Sr, Ba, or any combination thereof. The rare earth metal can include Sc, Y, Ce, Tb, Yb, Gd, or any combination thereof.

[0481] The alkali metal-containing compound, the alkaline earth metal-containing compound, and the rare earth metal-containing compound can include, respectively, an oxide, a halide (e.g., a fluoride, a chloride, a bromide, and / or an iodide, etc.), or a telluride of the alkali metal, the alkaline earth metal, and the rare earth metal, or any combination thereof.

[0482] The alkali metal-containing compound can include: an alkali metal oxide, such as Li2O, Cs2O, and / or K2O, etc.; an alkali metal halide, such as LiF, NaF, CsF, KF, LiI, NaI, CsI, and / or KI, etc.; or any combination thereof. The alkaline earth metal-containing compound can include an alkaline earth metal oxide, 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-x O (where x is a real number satisfying 0 < x < 1), etc. The rare earth metal-containing compound can include YbF3, ScF3, Sc2O3, Y2O3, Ce2O3, GdF3, TbF3, YbI3, ScI3, TbI3, or any combination thereof. In one or more embodiments, the rare earth metal-containing compound can include lanthanide tellurides. Non-limiting examples of lanthanide tellurides can 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 / or Lu2Te3, etc.

[0483] The alkali metal complex, the alkaline earth metal complex, and the rare earth metal complex can include: i) one of the metal ions of the alkali metal, one of the metal ions of the alkaline earth metal, and one of the metal ions of the rare earth metal, and ii) a ligand bonded to the metal ions (e.g., respective metal ions), such as a hydroxyquinoline, a hydroxyisoquinoline, a hydroxybenzoquinoline, a hydroxyacridine, a hydroxyphenanthridine, a hydroxyphenyl-oxazole, a hydroxyphenyl-thiazole, a hydroxyphenyl-oxadiazole, a hydroxyphenyl-thiadiazole, a hydroxyphenyl-pyridine, a hydroxyphenyl-benzimidazole, a hydroxyphenyl-benzothiazole, a bipyridine, a phenanthroline, a cyclopentadiene, or any combination thereof.

[0484] In one or more embodiments, the electron injection layer can include (e.g., consist of) an alkali metal, an alkaline earth metal, a rare earth metal, an alkali metal-containing compound, an alkaline earth metal-containing compound, a rare earth metal-containing compound, an alkali metal complex, an alkaline earth metal complex, a rare earth metal complex, or any combination thereof, as described above. In one or more embodiments, the electron injection layer can further include an organic material (e.g., a compound represented by Formula 601).

[0485] In one or more embodiments, the electron injection layer can include (e.g., consist of) i) an alkali metal-containing compound (e.g., an alkali metal halide), or ii) a) an alkali metal-containing compound (e.g., an alkali metal halide), and b) an alkali metal, an alkaline earth metal, a rare earth metal, or any combination thereof. For example, in one or more embodiments, the electron injection layer can be a KI:Yb co-deposited layer and / or a RbI:Yb co-deposited layer, etc.

[0486] When the electron injection layer further includes an organic material, the alkali metal, the alkaline earth metal, the rare earth metal, the alkali metal-containing compound, the alkaline earth metal-containing compound, the rare earth metal-containing compound, the alkali metal complex, the alkaline earth metal complex, the rare earth metal complex, or any combination thereof can be uniformly (e.g., substantially uniformly) or non-uniformly dispersed in a matrix including the organic material.

[0487] The thickness of the electron injection layer can be in a range of about 0.1 nm to about 10 nm, about 0.5 nm to about 5 nm, or about 1 nm to about 3 nm. to about 10 nm, about 0.5 nm to about 5 nm, or about 1 nm to about 3 nm. When the thickness of the electron injection layer is in these ranges, satisfactory electron injection characteristics can be obtained without a significant increase in driving voltage. to about 10 nm, about 0.5 nm to about 5 nm, or about 1 nm to about 3 nm. When the thickness of the electron injection layer is in these ranges, satisfactory electron injection characteristics can be obtained without a significant increase in driving voltage. to about 10 nm, about 0.5 nm to about 5 nm, or about 1 nm to about 3 nm. When the thickness of the electron injection layer is in these ranges, satisfactory electron injection characteristics can be obtained without a significant increase in driving voltage. to about 10 nm, about 0.5 nm to about 5 nm, or about 1 nm to about 3 nm. When the thickness of the electron injection layer is in these ranges, satisfactory electron injection characteristics can be obtained without a significant increase in driving voltage.

[0488] The second electrode 150

[0489] The second electrode 150 can be disposed on the interlayer 130. The second electrode 150 can be a cathode as an electron injection electrode, and a metal, an alloy, an electroconductive compound, or any combination thereof each having a low work function can be used as a material for forming the second electrode 150.

[0490] The second electrode 150 can 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 can be a transmissive electrode, a transreflective electrode, or a reflective electrode.

[0491] The second electrode 150 can have a single layer structure or a multi-layer structure including a plurality of layers.

[0492] The capping layer

[0493] In one or more embodiments, the first capping layer can be disposed outside (e.g., on) the first electrode 110 and / or the second capping layer can be disposed outside (e.g., on) the second electrode 150. In more detail, the light emitting device 10 can have a structure in which the first capping layer, the first electrode 110, the interlayer 130, and the second electrode 150 are sequentially stacked in the recited order, a structure in which the first electrode 110, the interlayer 130, the second electrode 150, and the second capping layer are sequentially stacked in the recited order, or a structure in which the first capping layer, the first electrode 110, the interlayer 130, the second electrode 150, and the second capping layer are sequentially stacked in the recited order.

[0494] In one or more embodiments, light generated in the emission layer of the interlayer 130 of the light emitting device 10 can be extracted toward the outside through the first electrode 110 as a semi-transmissive electrode or a transmissive electrode and the first capping layer. In one or more embodiments, light generated in the emission layer of the interlayer 130 of the light emitting device 10 can be extracted toward the outside through the second electrode 150 as a semi-transmissive electrode or a transmissive electrode and the second capping layer.

[0495] The first capping layer and the second capping layer can increase external emission efficiency according to the principle of constructive interference. Accordingly, light extraction efficiency of the light emitting device 10 can be increased; as a result, luminous efficiency of the light emitting device 10 can be improved.

[0496] Each of the first capping layer and the second capping layer can include a material having a refractive index of 1.6 or more (at 589 nm).

[0497] The first capping layer and the second capping layer can each independently be an organic capping layer including an organic material, an inorganic capping layer including an inorganic material, or an organic-inorganic composite capping layer including an organic material and an inorganic material.

[0498] At least one of the first capping layer and the second capping layer can (e.g., each of the first capping layer and the second capping layer can 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 can each be optionally substituted with a substituent including O, N, S, Se, Si, F, Cl, Br, I, or any combination thereof. In one or more embodiments, at least one of the first capping layer and the second capping layer can (e.g., each of the first capping layer and the second capping layer can independently) include an amine-containing compound.

[0499] In one or more embodiments, at least one of the first capping layer and the second capping layer can include (e.g., each independently) a compound represented by Formula 201, a compound represented by Formula 202, or any combination thereof.

[0500] In one or more embodiments, at least one of the first capping layer and the second capping layer can include (e.g., each independently) at least one of compounds HT28 to HT33, at least one of compounds CP1 to CP6, β-NPB, or any combination thereof:

[0501]

[0502] Film

[0503] The organometallic compound represented by Formula 1 can be included in one or more appropriate films.

[0504] Accordingly, one or more aspects of embodiments of the present disclosure relate to a film including an organometallic compound represented by Formula 1. The film can be, for example, an optical member (or light control element) (e.g., a color filter, a color conversion member, a capping layer, a light extraction efficiency enhancement layer, a selective light absorption layer, a polarizing layer, and / or a quantum dot-containing layer, etc.), a light blocking member (e.g., a light reflecting layer and / or a light absorbing layer, etc.), and / or a protective member (e.g., an insulating layer and / or a dielectric layer, etc.), etc.

[0505] Electronic device

[0506] The light emitting device can be included in one or more appropriate electronic devices. For example, the electronic device including the light emitting device can be a light emitting device and an authentication device, etc.

[0507] In one or more embodiments, the electronic device (e.g., a light emitting device) can further include i) a color filter, ii) a color conversion layer, or iii) both (e.g., simultaneously) a color filter and a color conversion layer in addition to the light emitting device. The color filter and / or the color conversion layer can be disposed in at least one travel direction of light emitted from the light emitting device. For example, in one or more embodiments, the light emitted from the light emitting device can be green light, yellow light, or white light (e.g., combined white light). Detailed descriptions of the light emitting device are provided above. In one or more embodiments, the color conversion layer can include quantum dots. The quantum dots can be, for example, the aforementioned quantum dots.

[0508] The electronic device can include a first substrate. The first substrate can include a plurality of sub-pixel regions, the color filter can include a plurality of color filter regions respectively corresponding to the plurality of sub-pixel regions, and the color conversion layer can include a plurality of color conversion regions respectively corresponding to the plurality of sub-pixel regions.

[0509] The pixel defining film can be disposed between the plurality of sub-pixel regions to define each of the plurality of sub-pixel regions.

[0510] The color filter can further include a plurality of color filter regions and a light blocking pattern thereon (disposed therebetween), and the color conversion layer can further include a plurality of color conversion regions and a light blocking pattern thereon (e.g., disposed therebetween).

[0511] The plurality of color filter regions (or the plurality of color conversion regions) can include a first region configured to emit first color light, a second region configured to emit second color light, and / or a third region configured to emit third color light, where the first color light, the second color light, and / or the third color light can have different maximum emission wavelengths from each other. In one or more embodiments, the first color light can be red light, the second color light can be green light, and the third color light can be blue light. In one or more embodiments, the plurality of color filter regions (or the plurality of color conversion regions) can include quantum dots. For example, in one or more embodiments, the first region can include red quantum dots to emit red light, the second region can include green quantum dots to emit green light, and the third region can not include (e.g., can exclude) quantum dots. Detailed descriptions of quantum dots can refer to the descriptions provided herein. Each of the first region, the second region, and / or the third region can further include a scatterer.

[0512] In one or more embodiments, the light emitting device can be configured to emit first light, the first region can be configured to absorb the first light to emit first-first color light, the second region can be configured to absorb the first light to emit second-first color light, and the third region can be configured to absorb the first light to emit third-first color light. Here, the first-first color light, the second-first color light, and the third-first color light can have different maximum emission wavelengths from each other. For example, the first light can be blue light, the first-first color light can be red light, the second-first color light can be green light, and the third-first color light can be blue light.

[0513] In one or more embodiments, in addition to the aforementioned light emitting device, the electronic device can further include a thin film transistor. The thin film transistor can include a source electrode, a drain electrode, and an active layer, where one selected from the source electrode and the drain electrode can be electrically connected to the first electrode 110 or the second electrode 150 of the light emitting device 10.

[0514] The thin film transistor can further include a gate electrode, and / or a gate insulating film, etc.

[0515] The active layer can include crystalline silicon, amorphous silicon, organic semiconductor, and / or oxide semiconductor, etc.

[0516] In one or more embodiments, the electronic device can further include a sealing portion for sealing the light emitting device. The sealing portion can be disposed between the color filter and / or the color conversion layer and the light emitting device 10. The sealing portion allows extraction of light from the light emitting device 10 to the outside, and at the same time (e.g., simultaneously) prevents penetration of ambient air and moisture into the light emitting device 10. The sealing portion can be a sealing substrate including a transparent glass substrate or a plastic substrate. The sealing portion can be a thin film encapsulation layer including at least one layer of an organic layer and an inorganic layer. When the sealing portion is a thin film encapsulation layer, the electronic device can be flexible.

[0517] In one or more embodiments, various functional layers can be additionally disposed on the sealing portion in addition to the color filter and / or the color conversion layer, according to the use of the electronic device. Non-limiting examples of the functional layers can include a touch screen layer and a polarizing layer. The touch screen layer can be a pressure sensitive touch screen layer, a capacitive touch screen layer, or an infrared touch screen layer.

[0518] The authentication device can be, for example, a biometric authentication device that authenticates an individual by using biometric information of a living body (e.g., a fingertip and / or a pupil, etc.). The authentication device can further include a biometric information collector in addition to the light emitting device.

[0519] The electronic device can be applied to one or more of a display, a light source, a lighting device, a personal computer (e.g., a mobile personal computer), a portable phone, a digital camera, an electronic notebook, an electronic dictionary, an electronic game machine, a medical tool (e.g., an electronic thermometer, a sphygmomanometer, a blood glucose meter, a pulse measurement device, a pulse wave measurement device, an electrocardiogram display, an ultrasonic diagnostic device, or an endoscope display), a fish finder, one or more appropriate measurement tools, a meter (e.g., a meter for a vehicle, an aircraft, and a ship), and / or a projector, etc.

[0520] Electronic appliance

[0521] The light emitting device 10 can be included in one or more appropriate types (kinds) of electronic appliances.

[0522] For example, the electronic device including the light emitting device 10 can be selected from at least one of a flat panel display, a curved display, a computer monitor, a medical monitor, a television, a billboard, an indoor light, an outdoor light, a signal transmitting light, a head-up display, a full transparent display, a partial transparent display, a flexible display, a rollable display, a foldable display, a stretchable display, a laser printer, a telephone, a portable phone, a tablet personal computer, a phablet computer, a personal digital assistant (PDA), a wearable device, a laptop computer, a digital camera, a camcorder, a viewfinder, a micro display, a 3D display, a virtual reality display, an augmented reality display, a vehicle, a video wall having a plurality of displays spliced together, a theater screen, a stadium screen, a light therapy device, and a signboard.

[0523] The light emitting device 10 can have excellent or proper light emitting efficiency and long device lifetime, and thus the electronic device including the light emitting device 10 can have desired characteristics such as high brightness, high resolution, and low power consumption.

[0524] Figure 2 and Figure 3 Description

[0525] Figure 2 is a schematic cross-sectional view to illustrate a light emitting apparatus according to one or more embodiments of the present disclosure.

[0526] Figure 2 The light emitting apparatus of

[0526] may include a substrate 100, a thin film transistor (TFT), a light emitting device, and a sealing part 300 encapsulating the light emitting device.

[0527] The substrate 100 can be a flexible substrate, a glass substrate, or a metal substrate. A buffer layer 210 can be on the substrate 100. The buffer layer 210 can prevent or reduce penetration of impurities through the substrate 100 and can provide a flat surface on the substrate 100.

[0528] The TFT can be on the buffer layer 210. The TFT can include an active layer 220, a gate electrode 240, a source electrode 260, and a drain electrode 270.

[0529] The active layer 220 can include an inorganic semiconductor such as silicon or polysilicon, an organic semiconductor, or an oxide semiconductor, and can include a source region, a drain region, and a channel region.

[0530] A gate insulating film 230 for insulating the active layer 220 from the gate electrode 240 can be on the active layer 220, and the gate electrode 240 can be on the gate insulating film 230.

[0531] The interlayer insulating film 250 can be on the gate electrode 240. The interlayer insulating film 250 can be disposed between the gate electrode 240 and the source electrode 260 to insulate the gate electrode 240 from the source electrode 260, and between the gate electrode 240 and the drain electrode 270 to insulate the gate electrode 240 from the drain electrode 270.

[0532] The source electrode 260 and the drain electrode 270 can be on the interlayer insulating film 250. The interlayer insulating film 250 and the gate insulating film 230 can be formed to expose the source region and the drain region of the active layer 220, and the source electrode 260 and the drain electrode 270 can be disposed in contact with the exposed portions of the source region and the drain region of the active layer 220, respectively.

[0533] The TFT can be electrically connected to the light emitting device to drive the light emitting device, and can be covered and protected by the passivation layer 280. The passivation layer 280 can include an inorganic insulating film, an organic insulating film, or any combination thereof. The light emitting device can be provided on the passivation layer 280. The light emitting device can include the first electrode 110, the interlayer 130, and the second electrode 150.

[0534] The first electrode 110 can be on the passivation layer 280. The passivation layer 280 can be disposed to expose a portion of the drain electrode 270 without completely covering the drain electrode 270, and the first electrode 110 can be disposed to be connected to the exposed portion of the drain electrode 270.

[0535] A pixel defining layer 290 including an insulating material can be on the first electrode 110. The pixel defining layer 290 can expose a certain region of the first electrode 110, and the interlayer 130 can be formed in the exposed region of the first electrode 110. The pixel defining layer 290 can be a polyimide-based organic film or a polyacrylic-based organic film. In one or more embodiments, at least some layers of the interlayer 130 can extend beyond an upper portion of the pixel defining layer 290 to be disposed in the form of a common layer.

[0536] The second electrode 150 can be disposed on the interlayer 130, and the capping layer 170 can additionally be formed on the second electrode 150. The capping layer 170 can be formed to cover the second electrode 150.

[0537] A sealing portion 300 can be on the capping layer 170. The sealing portion 300 can be disposed on the light emitting device to protect the light emitting device from moisture and / or oxygen. The sealing portion 300 can include an inorganic film including silicon nitride (SiN x ), silicon oxide (SiO xIndium tin oxide, indium zinc oxide, or any combination thereof; organic membranes, including polyethylene terephthalate, polyethylene naphthalate, polycarbonate, polyimide, polyethylene sulfonate, polyoxymethylene, polyarylate, hexamethyldisiloxane, acrylic resins (e.g., polymethyl methacrylate and / or polyacrylic acid, etc.), epoxy resins (e.g., aliphatic glycidyl ether (AGE), etc.) or any combination thereof; or any combination of inorganic and organic membranes.

[0538] Figure 3 A schematic cross-sectional view of a light-emitting device according to one or more embodiments of the present disclosure is shown.

[0539] Figure 3 Light-emitting devices and Figure 2 The light-emitting devices are essentially the same, except that the light-shielding pattern 500 and the functional area 400 are additionally arranged on the sealing portion 300. The functional area 400 can be: i) a color filter area, ii) a color conversion area, or iii) any combination of a color filter area and a color conversion area. In one or more embodiments, Figure 3 The light-emitting device included in the light-emitting device can be a series of light-emitting devices.

[0540] Figure 4 Description

[0541] Figure 4 This is a schematic perspective view of an electronic device 1 including a light-emitting device according to one or more embodiments of the present disclosure. As an electronic device displaying moving or still images, the electronic device 1 may be a portable electronic device (such as a mobile phone, smartphone, tablet PC, mobile communication terminal, e-notebook computer, e-reader, portable multimedia player (PMP), navigation device, or ultra-mobile personal computer (UMPC)) and one or more suitable products (such as a television, laptop computer, monitor, billboard, or Internet of Things (IoT) device) or a portion thereof. In one or more embodiments, the electronic device 1 may be a wearable device (such as a smartwatch, watch phone, glasses-type (or head-mounted display) or a portion thereof). However, embodiments of the present disclosure are not limited thereto. In one or more embodiments, the electronic device 1 may be a vehicle's dashboard, a central information display (CID) arranged on the center console or the vehicle's dashboard, an interior rearview mirror display replacing the vehicle's side mirrors, an entertainment display for the vehicle's rear seats, a display arranged on the back of the vehicle's front seats, a head-up display (HUD) mounted on the front of the vehicle or projected onto its windshield, or a computer-generated holographic augmented reality head-up display (CGH AR HUD). For ease of description, Figure 4 The implementation method is explained, wherein electronic device 1 is a smartphone.

[0542] The electronic device 1 can include a display area DA and a non-display area NDA outside the display area DA. The electronic device 1 can implement an image by an array of a plurality of pixels arranged two-dimensionally in the display area DA.

[0543] The non-display area NDA is an area in which an image is not displayed, and can completely surround (e.g., enclose) the display area DA. In the non-display area NDA, a driver for providing an electric signal or power to a display element arranged in the display area DA can be arranged. In the non-display area NDA, a pad to which an electronic element or a printed circuit substrate can be electrically connected can be arranged.

[0544] The electronic device 1 can have different lengths in the x-axis direction and the y-axis direction. In one or more embodiments, as shown in FIG. 1A, the length in the x-axis direction can be shorter than the length in the y-axis direction. In one or more embodiments, the length in the x-axis direction can be substantially the same as the length in the y-axis direction. In one or more embodiments, the length in the x-axis direction can be greater than the length in the y-axis direction. Figure 4

[0545] Figure 5 and Figures 6A to 6C described above

[0546] Figure 5 is a schematic view of the exterior of a vehicle 1000 as an electronic device including a light emitting device according to one or more embodiments of the present disclosure. Figures 6A to 6C Each is a schematic view of the interior of the vehicle 1000 according to one or more embodiments.

[0547] Referring to Figure 5 , Figure 6A , Figure 6B and Figure 6C , the vehicle 1000 can refer to one or more appropriate devices for moving an object to be transported, such as a person, an object, or an animal, from a starting point to a destination point. The vehicle 1000 can include a vehicle traveling on a road or a track, a ship moving on the ocean or a river, and / or an airplane flying in the air using air, etc.

[0548] In one or more embodiments, the vehicle 1000 can travel on a road or a track. The vehicle 1000 can move in certain directions according to the rotation of at least one wheel thereof. In one or more embodiments, the vehicle 1000 can include a three- or four-wheeled vehicle, a construction machine, a two-wheeled vehicle, a prime mover, a bicycle, or a train traveling on a track.

[0549] ​The vehicle 1000 can include a body having an inside and an outside, and a chassis in which mechanical devices required for driving are installed as other parts other than the body of the vehicle 1000. The outside of the body of the vehicle 1000 can include a front panel, an engine hood, a roof panel, a rear panel, a trunk, and / or a pillar provided at a boundary between doors, etc. The chassis of the vehicle 1000 can include a power generation device, a power transmission device, a driving 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.

[0550] The vehicle 1000 can include side window glasses 1100, a front window glass 1200, side mirrors 1300, an instrument panel 1400, a center console 1500, a passenger seat instrument panel 1600, and a display device 2.

[0551] The side window glasses 1100 and the front window glass 1200 can be divided by a pillar disposed between the side window glasses 1100 and the front window glass 1200.

[0552] The side window glasses 1100 can be installed on a side of the vehicle 1000. In one or more embodiments, the side window glasses 1100 can be installed on a door of the vehicle 1000. A plurality of side window glasses 1100 can be provided and can face each other. In one or more embodiments, the side window glasses 1100 can 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 can be disposed adjacent to the instrument panel 1400. The second side window glass 1120 can be disposed adjacent to the passenger seat instrument panel 1600.

[0553] In one or more embodiments, the side window glasses 1100 can be spaced and / or separated (e.g., spaced apart or separated) from each other in an x-axis direction or an -x-axis direction (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 can be spaced and / or separated (e.g., spaced apart or separated) from each other in the x-axis direction or the -x-axis direction. For example, an imaginary straight line L connecting the side window glasses 1100 can extend in the x-axis direction or 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 to each other can extend in the x-axis direction or the -x-axis direction.

[0554] The front window glass 1200 can be installed at a front of the vehicle 1000. The front window glass 1200 can be disposed between the side window glasses 1100 opposite (e.g., facing) each other.

[0555] The side mirror 1300 can provide a rear view of the vehicle 1000. The side mirror 1300 can be mounted on the outside of the vehicle body. In one or more embodiments, a plurality of side mirrors 1300 can be provided. One of the plurality of side mirrors 1300 can be disposed outside the first side window glass 1110. Another of the plurality of side mirrors 1300 can be disposed outside the second side window glass 1120.

[0556] The instrument panel 1400 can be disposed in front of the steering wheel. The instrument panel 1400 can include a tachometer, a speedometer, a coolant temperature gauge, a fuel gauge, a turn signal indicator, a high beam indicator, a warning light, a seat belt warning light, an odometer, a speedometer, an automatic shift selector indicator, a door open warning light, an oil warning light, and / or a low fuel warning light.

[0557] The center console 1500 can include a control panel on which a plurality of buttons for adjusting an audio device, an air conditioning device, and / or a seat heater are disposed. The center console 1500 can be disposed at a side of the instrument panel 1400.

[0558] The passenger seat instrument panel 1600 can be separated and / or spaced apart (e.g., spaced or separated) from the instrument panel 1400, and the center console 1500 can be disposed between the instrument panel 1400 and the passenger seat instrument panel 1600. In one or more embodiments, the instrument panel 1400 can be disposed to correspond to the driver seat, and the passenger seat instrument panel 1600 can be disposed to correspond to the passenger seat. In one or more embodiments, the instrument panel 1400 can be adjacent to the first side window glass 1110, and the passenger seat instrument panel 1600 can be adjacent to the second side window glass 1120.

[0559] In one or more embodiments, the display apparatus 2 can include a display panel 3, and the display panel 3 can display an image. The display apparatus 2 can be disposed inside the vehicle 1000. In one or more embodiments, the display apparatus 2 can be disposed between the side window glasses 1100 opposite (e.g., facing) each other. The display apparatus 2 can be disposed on at least one of the instrument panel 1400, the center console 1500, and the passenger seat instrument panel 1600.

[0560] The display apparatus 2 can include an organic light emitting display apparatus, an inorganic light emitting display apparatus, and / or a quantum dot display apparatus, etc. Hereinafter, as the display apparatus 2 according to one or more embodiments, an organic light emitting display apparatus including a light emitting device will be described as an example, but one or more appropriate types (kinds) of display apparatuses as described above can be used in embodiments.

[0561] Reference Figure 6AIn one or more embodiments, the display device 2 can be arranged on the center console 1500. In one or more embodiments, the display device 2 can display navigation information. In one or more embodiments, the display device 2 can display information related to audio settings, video settings, and / or vehicle settings.

[0562] Reference Figure 6B In one or more embodiments, the display device 2 can be arranged on the instrument panel 1400. In these embodiments, the instrument panel 1400 can display driving information, etc. through the display device 2. For example, the instrument panel 1400 can digitally implement driving information, etc. The instrument panel 1400 can digitally implement vehicle information and driving information as an image. In one or more embodiments, a needle of a tachometer and gauges and one or more appropriate warning lamp icons can be displayed through digital signals.

[0563] Reference Figure 6C In one or more embodiments, the display device 2 can be arranged on the passenger seat panel 1600. The display device 2 can be embedded in or arranged on the passenger seat panel 1600. In one or more embodiments, the display device 2 arranged on the passenger seat panel 1600 can display an image related to information displayed on the instrument panel 1400 and / or information displayed on the center console 1500. In one or more embodiments, the display device 2 arranged on the passenger seat panel 1600 can display information different from information displayed on the instrument panel 1400 and / or information displayed on the center console 1500.

[0564] Manufacturing method

[0565] The layer constituting the hole transport zone, the emission layer, and the layer constituting the electron transport zone can each be formed in a specific zone by using one or more appropriate methods such as vacuum deposition, spin coating, casting, Langmuir-Blodgett (LB) deposition, inkjet printing, laser printing, and / or laser-induced thermal imaging, etc.

[0566] When the layer constituting the hole transport zone, the emission layer, and the layer constituting the electron transport zone are each formed by vacuum deposition, the deposition can be performed at a deposition temperature in the range of about 100°C to about 500°C, a vacuum degree in the range of about 10 -8 tor to about 10 -3 tor, and a deposition speed in the range of about to about depending on the material to be included in the layer to be formed and the structure of the layer to be formed.

[0567] Definition of terms

[0568] The term "C3-C 60“Carbocyclyl” refers to cyclic groups including (e.g., consisting of) carbon atoms as the sole atoms in the ring, and having from 3 to 60 carbon atoms, for example, C3-C 50 “Carbocyclyl” refers to cyclic groups including (e.g., consisting of) carbon atoms as the sole atoms in the ring, and having from 3 to 60 carbon atoms, for example, C3-C 40 “Carbocyclyl” refers to cyclic groups including (e.g., consisting of) carbon atoms as the sole atoms in the ring, and having from 3 to 60 carbon atoms, for example, C3-C 30 “Carbocyclyl” refers to cyclic groups including (e.g., consisting of) carbon atoms as the sole atoms in the ring, and having from 3 to 60 carbon atoms, for example, C3-C 20 “Carbocyclyl” refers to cyclic groups including (e.g., consisting of) carbon atoms as the sole atoms in the ring, and having from 3 to 60 carbon atoms, for example, C3-C 10 “Carbocyclyl” refers to cyclic groups including (e.g., consisting of) carbon atoms as the sole atoms in the ring, and having from 3 to 60 carbon atoms, for example, C3-C 60 “Carbocyclyl” refers to cyclic groups including (e.g., consisting of) carbon atoms as the sole atoms in the ring, and having from 3 to 60 carbon atoms, for example, C3-C 50 “Carbocyclyl” refers to cyclic groups including (e.g., consisting of) carbon atoms as the sole atoms in the ring, and having from 3 to 60 carbon atoms, for example, C3-C 40 “Carbocyclyl” refers to cyclic groups including (e.g., consisting of) carbon atoms as the sole atoms in the ring, and having from 3 to 60 carbon atoms, for example, C3-C 30 “Carbocyclyl” refers to cyclic groups including (e.g., consisting of) carbon atoms as the sole atoms in the ring, and having from 3 to 60 carbon atoms, for example, C3-C 20 “Carbocyclyl” refers to cyclic groups including (e.g., consisting of) carbon atoms as the sole atoms in the ring, and having from 3 to 60 carbon atoms, for example, C3-C 10 “Carbocyclyl” refers to cyclic groups including (e.g., consisting of) carbon atoms as the sole atoms in the ring, and having from 3 to 60 carbon atoms, for example, C3-C 60 “Carbocyclyl” refers to cyclic groups including (e.g., consisting of) carbon atoms as the sole atoms in the ring, and having from 3 to 60 carbon atoms, for example, C3-C 60 “Carbocyclyl” refers to cyclic groups including (e.g., consisting of) carbon atoms as the sole atoms in the ring, and having from 3 to 60 carbon atoms, for example, C3-C 60 “Carbocyclyl” refers to cyclic groups including (e.g., consisting of) carbon atoms as the sole atoms in the ring, and having from 3 to 60 carbon atoms, for example, C3-C

[0569] “Carbocyclyl” refers to cyclic groups including (e.g., consisting of) carbon atoms as the sole atoms in the ring, and having from 3 to 60 carbon atoms, for example, C3-C 60 “Carbocyclyl” refers to cyclic groups including (e.g., consisting of) carbon atoms as the sole atoms in the ring, and having from 3 to 60 carbon atoms, for example, C3-C 60 “Carbocyclyl” refers to cyclic groups including (e.g., consisting of) carbon atoms as the sole atoms in the ring, and having from 3 to 60 carbon atoms, for example, C3-C

[0570] “Carbocyclyl” refers to cyclic groups including (e.g., consisting of) carbon atoms as the sole atoms in the ring, and having from 3 to 60 carbon atoms, for example, C3-C 60 “Carbocyclyl” refers to cyclic groups including (e.g., consisting of) carbon atoms as the sole atoms in the ring, and having from 3 to 60 carbon atoms, for example, C3-C 60 “Carbocyclyl” refers to cyclic groups including (e.g., consisting of) carbon atoms as the sole atoms in the ring, and having from 3 to 60 carbon atoms, for example, C3-C

[0571] “Carbocyclyl” refers to cyclic groups including (e.g., consisting of) carbon atoms as the sole atoms in the ring, and having from 3 to 60 carbon atoms, for example, C3-C

[0572] “Carbocyclyl” refers to cyclic groups including (e.g., consisting of) carbon atoms as the sole atoms in the ring, and having from 3 to 60 carbon atoms, for example, C3-C 60The carbocyclic group can be i) group T1, or ii) a fused-ring group in which two or more groups T1 are fused together (e.g., cyclopentadienyl, adamantyl, norbornel, phenyl, pentaenyl, naphthyl, azuleyl, indaryl, acenaphthel, phenanthyl, anthraceneyl, fluoranyl, triphenylene, pyrene, 1,2-benzophenantyl, peryl, penfenyl, heptaenyl, tetraphenyl, framyl, hexaphenyl, pentaphenyl, rubidyl, keratyl, ovoleyl, indole, fluorenyl, spirodifluorenyl, benzofluorenyl, indophenantyl, or indoanthrayl).

[0573] C1-C 60 The heterocyclic group can be i) group T2, ii) a fused-ring group in which two or more groups T2 are fused together, or iii) a fused-ring group in which at least one group T2 and at least one group T1 are fused together (e.g., pyrrole, thiophene, furanyl, indole, benzoindole, naphthoindole, isoindole, benzoisoindole, naphthoisoindole, benzothiophene, benzofuranyl, carbazole, dibenzothiophene, dibenzothiophene, dibenzofuranyl, indocarbazole, indolecarbazole, benzofuranocarbazole, benzothiophenecarbazole, benzothiophenecarbazole, benzoindocarbazole, benzocarbazole, benzonaphthofuranyl, benzonaphthophene, benzonaphthothiophene, benzofuranodibenzofuranyl, benzofuranyl... Brønsted dibenzothiophene, benzothiophene dibenzothiophene, pyrazolyl, imidazole, triazolyl, oxazolyl, isoxazolyl, oxadiazolyl, thiazolyl, isothiazolyl, thiazolyl, benzopyrazolyl, benzimidazolyl, benzooxazolyl, benzoisooxazolyl, benzothiazolyl, benzoisothiazolyl, pyridyl, pyrazinyl, pyridazinyl, triazinyl, quinolinyl, isoquinolinyl, benzyl (e.g., benzo[i]isoquinolinyl, quinoxalinyl, benzo[i]quinoxalinyl, quinazolinyl, benzo[i]quinoxalinyl, phenanthrolinyl, cenolinyl, phthalazinyl, naphthidyl, imidazo[i]pyridinyl, imidazo[i]pyrimidinyl, imidazo[i]triazinyl, imidazo[i]pyrazinyl, imidazo[i]pyridazinyl, azacarbazoyl, azafluorenyl, azadibenzothiopheneyl, azadibenzothiopheneyl and / or azadibenzofuranyl, etc.)

[0574] C3-C rich in π electrons 60 The cyclic group may be i) group T1, ii) a fused ring group in which two or more groups T1 are fused together, iii) group T3, iv) a fused ring group in which two or more groups T3 are fused together, or v) a fused ring group in which at least one group T3 and at least one group T1 are fused together (e.g., C3-C). 60Carbocyclic, 1H-pyrrole, thiorrole, borocyclopentadienyl, 2H-pyrrole, 3H-pyrrole, thiophene, furanyl, indole, benzoindole, naphthoindole, isoindole, benzoisoindole, naphthoisoindole, benzothiorrole, benzothiophene, benzofuranyl, carbazole, dibenzothiorrole, dibenzothiophene, dibenzofuranyl, indole-carbazole, indole-carbazole, benzofuran-carbazole, benzothiophene-carbazole, benzothiorrole-carbazole, benzoindole-carbazole, benzocarbazole, benzonaphthofuranyl, benzonaphthophene, benzonaphthorrole, benzofuran-dibenzofuranyl, benzofuran-dibenzothiophene and / or benzothiophene-dibenzothiophene, etc.

[0575] Nitrogen-containing C1-C lacking π electrons 60 The heterocyclic group may be i) group T4, ii) a fused ring group in which two or more groups T4 are fused together, iii) a fused ring group in which at least one group T4 and at least one group T1 are fused together, iv) a fused ring group in which at least one group T4 and at least one group T3 are fused together, 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 together (e.g., pyrazolyl, imidazolyl, triazolyl, oxazolyl, isoxazolyl, oxadiazolyl, thiazolyl, isothiazolyl, thiazolyl, benzopyrazolyl, etc.). Benzimidazolyl, benzoxazolyl, benzoisoxazolyl, benzothiazolyl, benzoisothiazolyl, pyridinyl, pyrazinyl, pyridazinyl, triazinyl, quinolinyl, isoquinolinyl, benzoquinolinyl, benzoisoquinolinyl, quinoxalinyl, benzoquinoxalinyl, quinazolinyl, benzoquinazolinyl, phenanthrolinel, cenolinyl, phthalazinyl, naphthinyl, imidazopyridinyl, imidazopyrimidinyl, imidazotriazinyl, imidazopyrazinyl, imidazopyridazinyl, azacarbazolyl, azafluorenyl, azadibenzothiopheneyl, azadibenzothiopheneyl and / or azadibenzofuranyl, etc.

[0576] Group T1 can be cyclopropane, cyclobutane, cyclopentane, cyclohexane, cycloheptane, cyclooctane, cyclobutenyl, cyclopentenyl, cyclopentadienyl, cyclohexenyl, cyclohexadienyl, cycloheptenyl, adamantyl, norbornyl (or bicyclo[2.2.1]heptane), norbornyl, bicyclo[1.1.1]pentane, bicyclo[2.1.1]hexane, bicyclo[2.2.2]octane, or phenyl.

[0577] Group T2may be furanyl, thienyl, 1H-pyrrolyl, silolyl, borolyl, 2H-pyrrolyl, 3H-pyrrolyl, imidazolyl, pyrazolyl, triazolyl, tetrazolyl, oxazolyl, isoxazolyl, oxadiazolyl, thiazolyl, isothiazolyl, thiadiazolyl, azasiloxy, azaborolyl, pyridyl, pyrimidinyl, pyrazinyl, pyridazinyl, triazinyl, tetrazinyl, pyrrolidinyl, imidazolidinyl, dihydropyrrolyl, piperidinyl, tetrahydropyridyl, dihydropyridyl, hexahydropyrimidinyl, tetrahydropyrimidinyl, dihydropyrimidinyl, piperazinyl, tetrahydropyrazinyl, dihydropyrazinyl, tetrahydropyridazinyl, or dihydropyridazinyl,

[0578] Group T3may be furanyl, thienyl, 1H-pyrrolyl, silolyl, or borolyl, and

[0579] Group T4may be 2H-pyrrolyl, 3H-pyrrolyl, imidazolyl, pyrazolyl, triazolyl, tetrazolyl, oxazolyl, isoxazolyl, oxadiazolyl, thiazolyl, isothiazolyl, thiadiazolyl, azasiloxy, azaborolyl, pyridyl, pyrimidinyl, pyrazinyl, pyridazinyl, triazinyl, or tetrazinyl.

[0580] As used herein, the term “cyclic group,” “C3-C 60 carbocyclyl,” “C1-C 60 heterocyclyl,” “π-electron rich C3-C 60 cyclic group,” or “π-electron deficient nitrogen-containing C1-C 60 heterocyclyl” can refer to a group that is fused to any cyclic group, monovalent group, or polyvalent group (e.g., divalent group, trivalent group, and / or tetravalent group, etc.) according to the structure of the formula in which the corresponding term is used. In one or more embodiments, “phenyl” can be benzo, phenyl, and / or phenylene, etc., which can be readily understood by one of ordinary skill in the art according to the structure of the formula including “phenyl.”

[0581] Non-limiting examples of monovalent C3-C 60 carbocyclyl and monovalent C1-C 60 heterocyclyl can 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, monovalent non-aromatic fused polycyclic group, and monovalent fused heteropolycyclic group. Non-limiting examples of divalent C3-C 60 carbocyclyl and divalent C1-C 60 heterocyclyl can include C3-C 10 cycloalkylene, C1-C 10heterocycloalkylene, C3-C 10 cycloalkenylene, C1-C 10 heterocycloalkenylene, C6-C 60 arylene, C1-C 60 heteroarylene, divalent non-aromatic fused polycyclic groups, and divalent non-aromatic fused heteropolycyclic groups.

[0582] The term "C1-C 60 alkyl" as used herein refers to a straight-chain or branched-chain aliphatic hydrocarbon monovalent radical having from 1 to 60 carbon atoms, for example, C1-C 50 alkyl, C1-C 30 alkyl, C1-C 20 alkyl, or C1-C 10 alkyl, and non-limiting examples of which can include methyl, ethyl, n-propyl, i-propyl, n-butyl, s-butyl, i-butyl, t-butyl, n-pentyl, t-pentyl, neopentyl, i-pentyl, s-pentyl, 3-pentyl, sec-i-pentyl, n-hexyl, i-hexyl, s-hexyl, t-hexyl, n-heptyl, i-heptyl, s-heptyl, t-heptyl, n-octyl, i-octyl, s-octyl, t-octyl, n-nonyl, i-nonyl, s-nonyl, t-nonyl, n-decyl, i-decyl, s-decyl, and t-decyl. The term "C1-C 60 alkylene" refers to a divalent radical having essentially the same structure as a C1-C 60 alkyl group.

[0583] The term "C2-C 60 alkenyl" as used herein refers to a monovalent hydrocarbon radical having at least one carbon-carbon double bond in the middle of the chain or at a terminal position of a C2-C 60 alkyl group, for example, C2-C 30 alkenyl, C2-C 20 alkenyl, or C2-C 10 alkenyl, and non-limiting examples of which can include ethenyl, propenyl, and / or butenyl, etc. The term "C2-C 60 alkenylene" refers to a divalent radical having essentially the same structure as a C2-C 60 alkenyl group.

[0584] The term "C2-C 60 alkynyl" as used herein refers to a monovalent hydrocarbon radical having at least one carbon-carbon triple bond in the middle of the chain or at a terminal position of a C2-C 60 alkyl group, for example, C2-C 30 alkynyl, C2-C 20 alkynyl, or C2-C 10 alkynyl, and non-limiting examples of which include ethynyl and propynyl. The term "C2-C 60 alkynylene" refers to a divalent radical having essentially the same structure as a C2-C 60Alkynyl has essentially the same structure as a divalent radical.

[0585] The term "C1-C 60 Alkoxy refers to a monovalent group represented by -OA 101 (wherein A 101 is a C1-C 60 alkyl group), for example, C1-C 30 alkoxy, C1-C 20 alkoxy, or C1-C 10 alkoxy, and non-limiting examples of which include methoxy, ethoxy, and isopropoxy.

[0586] The term "C3-C 10 Cycloalkyl refers to a monovalent saturated hydrocarbon ring radical having from 3 to 10 carbon atoms, and non-limiting examples of which can include cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl, cyclooctyl, adamantyl, norbornyl (or bicyclo[2.2.1]heptyl), bicyclo[l. l. l]pentyl, bicyclo[2. l. l]hexyl, and / or bicyclo[2.2.2]octyl, and the like. The term "C3-C 10 Cycloalkylene refers to a divalent radical having essentially the same structure as a C3-C 10 cycloalkyl group.

[0587] The term "C1-C 10 Heterocycloalkyl refers to a monovalent cyclic radical of from 1 to 10 carbon atoms further including at least one heteroatom as a ring-forming atom in addition to carbon atoms, and non-limiting examples of which can include 1,2,3,4-oxatriazolidinyl, tetrahydrofuranyl, and / or tetrahydrothiophenyl, and the like. The term "C1-C 10 Heterocycloalkylene refers to a divalent radical having essentially the same structure as a C1-C 10 heterocycloalkyl group.

[0588] The term "C3-C 10 Cycloalkenyl refers to a monovalent cyclic radical having from 3 to 10 carbon atoms, at least one carbon-carbon double bond in its ring, and no aromaticity, and specific examples of which can include cyclopentenyl, cyclohexenyl, and / or cycloheptenyl, and the like. The term "C3-C 10 Cycloalkenylene refers to a divalent radical having essentially the same structure as a C3-C 10 cycloalkyl group.

[0589] The term "C1-C 10"Heterocycloalkenyl" refers to a monovalent cyclic group of 1 to 10 carbon atoms, further including at least one heteroatom as a ring-forming atom in addition to carbon atoms, and at least one double bond in its ring structure. C1-C 10 Non-limiting examples of heterocycloalkenyl groups can include 4,5-dihydro-1,2,3,4-oxatriazolyl, 2,3-dihydrofuranyl, and / or 2,3-dihydrothiophenyl, etc. The term "C1-C 10 "Heterocycloalkenylene" refers to a divalent group having essentially the same structure as a heterocycloalkenyl group. 10 Heterocycloalkenyl groups have essentially the same structure as a divalent group.

[0590] The term "C6-C 60 "Aryl" refers to a monovalent group having a carbocyclic aromatic system having 6 to 60 carbon atoms, e.g., C6-C 50 Aryl, C6-C 40 Aryl, C6-C 30 Aryl, C6-C 20 Aryl or C6-C 15 Aryl, and the term "C6-C 60 "Arylene" refers to a divalent group having a carbocyclic aromatic system having 6 to 60 carbon atoms. C6-C 60 Non-limiting examples of aryl groups can include phenyl, pentalenyl, naphthyl, azulenyl, indacenyl, acenaphthyl, phenalenyl, phenanthryl, anthryl, fluoranthenyl, triphenylenyl, pyrenyl, 1,2- benzophenanthryl, perylenyl, pentaphenyl, heptalene, naphthacene, picenyl, chrysene, coronene, and / or ovalenyl, etc. When C6-C 60 Aryl and C6-C 60 When the arylene groups each include two or more rings, the two or more rings can be fused to each other.

[0591] The term "C1-C 60 "Heteroaryl" refers to a monovalent group of 1 to 60 carbon atoms having a heterocyclic aromatic system further including at least one heteroatom as a ring-forming atom in addition to carbon atoms, e.g., C1-C 50 Heteroaryl, C1-C 40 Heteroaryl, C1-C 30 Heteroaryl, C1-C 20 Heteroaryl or C1-C 10 Heteroaryl. The term "C1-C 60 "Heteroarylene" refers to a divalent group of 1 to 60 carbon atoms having a heterocyclic aromatic system further including at least one heteroatom as a ring-forming atom in addition to carbon atoms. C1-C 60Non-limiting examples of heteroaryl groups can include pyridyl, pyrimidyl, pyrazinyl, pyridazinyl, triazinyl, quinolinyl, benzoquinolinyl, isoquinolinyl, benzoisoquinolinyl, quinoxalinyl, benzoquinoxalinyl, quinazolinyl, benzoquinazolinyl, cinnolinyl, phenanthrolinyl, phthalazinyl, and / or naphthyridinyl groups, and the like. When C1-C 60 heteroaryl groups and C1-C 60 When the heteroarylene groups each include two or more rings, the two or more rings can be fused to one another.

[0592] The term "monovalent non-aromatic fused polycyclic group," as used herein, refers to a monovalent group having two or more rings that are fused to one another, only carbon atoms (e.g., 8 to 60 carbon atoms) as ring-forming atoms, and no aromaticity in its molecular structure when considered as a whole, e.g., C8-C 60 monovalent non-aromatic fused polycyclic groups, C8-C 50 monovalent non-aromatic fused polycyclic groups, C8-C 40 monovalent non-aromatic fused polycyclic groups, C8-C 30 monovalent non-aromatic fused polycyclic groups or C8-C 20 monovalent non-aromatic fused polycyclic groups. Non-limiting examples of monovalent non-aromatic fused polycyclic groups can include indenyl, fluorenyl, spirobifluorenyl, benzofluorenyl, indenophenanthryl, and / or indenanthracenyl groups, and the like. The term "divalent non-aromatic fused polycyclic group," as used herein, refers to a divalent group having substantially the same structure as a monovalent non-aromatic fused polycyclic group.

[0593] The term "monovalent non-aromatic fused heteropolycyclic group," as used herein, refers to a monovalent group having two or more rings that are fused to one another, further including at least one heteroatom as a ring-forming atom in addition to carbon atoms (e.g., 1 to 60 carbon atoms), and no aromaticity in its entire molecular structure when considered as a whole, e.g., C1-C 60 monovalent non-aromatic fused heteropolycyclic groups, C1-C 50 monovalent non-aromatic fused heteropolycyclic groups, C1-C 40 monovalent non-aromatic fused heteropolycyclic groups, C1-C 30 monovalent non-aromatic fused heteropolycyclic groups or C1-C 20 monovalent non-aromatic fused heteropolycyclic groups. Non-limiting examples of monovalent non-aromatic fused heteropolycyclic groups can include benzothiophyranyl, dibenzothiophyranyl, azafuorenyl, azadibenzothiophyranyl, benzothiophyracarbazolyl, and / or benzonaphthothiophyranyl groups, and the like. The term "divalent non-aromatic fused heteropolycyclic group," as used herein, refers to a divalent group having substantially the same structure as a monovalent non-aromatic fused heteropolycyclic group.

[0594] The term "C6-C 60 aryloxy" refers to -OA102 (wherein A 102 is C6-C 60 aryl), for example, C6-C 50 aryloxy, C6-C 40 aryloxy, C6-C 30 aryloxy, C6-C 20 aryloxy, or C6-C 15 aryloxy, and as used herein the term "C6-C 60 arylthio" means -SA 103 (wherein A 103 is C6-C 60 aryl), for example, C6-C 50 arylthio, C6-C 40 arylthio, C6-C 30 arylthio, C6-C 20 arylthio, or C6-C 15 arylthio.

[0595] As used herein, the term "C7-C 60 aralkyl" indicates -A 104 A 105 (wherein A 104 is C1-C 54 alkylene, and A 105 is C6-C 59 aryl), for example, C7-C 50 aralkyl, C7-C 40 aralkyl, C7-C 30 aralkyl, C7-C 20 aralkyl, or C7-C 15 aralkyl, and as used herein the term "C2-C 60 heteroaralkyl" indicates -A 106 A 107 (wherein A 106 is C1-C 59 alkylene, and A 107 is C1-C 59 heteroaryl), for example, C2-C 50 heteroaralkyl, C2-C 40 heteroaralkyl, C2-C 30 heteroaralkyl, C2-C 20 heteroaralkyl, or C2-C 15 heteroaralkyl.

[0596] As used herein, the term "C1-C 60 heteroaryloxy" can be -O(A 108 )(wherein A 108 may be C1-C 60(Heteroaryl) groups, for example, C1-C 50 Heteroaryloxy, C1-C 40 Heteroaryloxy, C1-C 30 Heteroaryloxy, C1-C 20 Heteroaryloxy or C1-C 15 Heteroaryl groups, and as used herein by the term "C1-C". 60 "Heteroary sulfhydryl" can be composed of -S(A 109 (where A) 109 Can be C1-C 60 (Heteroaryl) groups, for example, C1-C 50 heteroaryl thiols, C1-C 40 heteroaryl thiols, C1-C 30 heteroaryl thiols, C1-C 20 heteroaryl thiols or C1-C 15 heteroaryl thiols.

[0597] In this invention, integers selected from 0 to 20 refer to integers 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 above description of numerical ranges also applies to any other numerical ranges appearing in this invention, such as integers selected from 0 and 1, integers selected from 0 to 2, integers selected from 0 to 3, integers selected from 0 to 4, integers selected from 0 to 5, integers selected from 0 to 6, integers selected from 0 to 7, integers selected from 0 to 8, integers selected from 0 to 9, integers selected from 0 to 10, integers selected from 0 to 11, integers selected from 0 to 12, integers selected from 0 to 13, integers selected from 0 to 14, integers selected from 0 to 15, integers selected from 0 to 16, integers selected from 0 to 17, integers selected from 0 to 18, and integers selected from 0 to 19, etc.

[0598] As used in this article, the term "R" 10a "Can be:

[0599] Deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, amidine, hydrazine, hydrazone, or nitro;

[0600] Each of the following C1-C that is not substituted or is substituted: 60 Alkyl, C2-C 60 alkenyl, C2-C 60 alkynyl or C1-C 60 Alkoxy groups: deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, C3-C 60 Carbocyclic group, C1-C 60 Heterocyclic group, C6-C 60 Aryloxy group, C6-C 60Arylthio, C1-C 60 Heteroaryloxy, C1-C 60 heteroaryl thiols, C7-C 60 Aryl alkyl, C2-C 60 heteroaryl, -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;

[0601] Each of the following C3-Cs that are not substituted or are substituted by: 60 Carbocyclic group, C1-C 60 Heterocyclic group, C6-C 60 Aryloxy group, C6-C 60 Arylthio, C7-C 60 Aryl or C2-C 60 Heteroalkyl groups: deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, C1-C 60 Alkyl, C2-C 60 alkenyl, C2-C 60 Alkyne group, C1-C 60 Alkoxy, C3-C 60 Carbocyclic group, C1-C 60 Heterocyclic group, C6-C 60 Aryloxy group, C6-C 60 Arylthio, C1-C 60 Heteroaryloxy, C1-C 60 heteroaryl thiols, C7-C 60 Aryl alkyl, C2-C 60 heteroaryl, -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

[0602] -Si(Q31 )(Q 32 )(Q 33 ), -N(Q 31 )(Q 32 ), -B(Q 31 )(Q 32 ), -C(=0)(Q 31 ), -S(=0)2(Q 31 ), or -P(=0)(Q 31 )(Q 32 ).

[0603] In the present disclosure, Q1to Q3, Q 11 to Q 13 , Q 21 to Q 23 , and Q 31 to Q 33 may each independently be: hydrogen; deuterium; -F; -CI; -Br; -I; hydroxyl; cyano; amidino; hydrazino; hydrazone; nitro; C1-C 60 alkyl; C2-C 60 alkenyl; C2-C 60 alkynyl; C1-C 60 alkoxy; each unsubstituted or substituted with deuterium, -F, cyano, C1-C 60 alkyl, C1-C 60 alkoxy, phenyl, biphenyl, or any combination thereof; C3-C 60 carbocyclyl or C1-C 60 heterocyclyl; C7-C 60 aralkyl; or C2-C 60 heteroaralkyl.

[0604] The term "heteroatom" as used herein refers to any atom other than a carbon atom and a hydrogen atom. Non-limiting examples of heteroatoms include O, S, N, P, Si, B, Ge, Se, or any combination thereof.

[0605] The term "transition metal" as used herein includes Hf, Ta, W, Re, Os, Ir, Pt, and / or Au, among others.

[0606] The term "Ph" as used herein refers to phenyl, the term "Me" as used herein refers to methyl, the term "Et" as used herein refers to ethyl, the term "tert-Bu" or "Bu t " as used herein refers to tert-butyl, and the term "OMe" as used herein refers to methoxy.

[0607] The term "biphenyl" as used herein refers to "phenyl substituted with phenyl." For example, "biphenyl" can be a C6-C 60substituted phenyl having an aryl group as a substituent.

[0608] The term "triphenyl" as used herein refers to "a phenyl group substituted with a biphenyl group". The "triphenyl" is a group having a phenyl group substituted with a C6-C 60 C6-C 60 substituted phenyl having an aryl group as a substituent.

[0609] Unless otherwise indicated, each of *, and * indicates a binding site to an adjacent atom in the corresponding formula or moiety.

[0610] In the present disclosure, the x-axis, the y-axis, and the z-axis are not limited to three axes in an orthogonal coordinate system, and can be interpreted in a broad sense including these axes. For example, the x-axis, the y-axis, and the z-axis can describe axes orthogonal to each other, or can describe axes in different directions that are not orthogonal to each other.

[0611] Hereinafter, the compound according to one or more embodiments and the light-emitting device according to one or more embodiments will be described in greater detail with reference to the following synthesis examples and examples. The phrase "use B instead of A" used in describing the synthesis examples means using substantially the same molar equivalent of B instead of A.

[0612] Synthesis Example

[0613] Synthesis Example 1: Synthesis of Compound 1

[0614]

[0615] (1) Synthesis of Intermediate 1-1

[0616] To 100 mL of anhydrous toluene were added 2-bromo-4-(tert-butyl)pyridine (10.0 g, 0.047 mol), 2-bromo-9H-carbazole (11.5 g, 0.047 mol), copper(I) iodide (1.8 g, 0.019 mol), 1-methyl-1H-imidazole (3.83 g, 0.047 mol), and lithium 2-methylpropan-2-olate (7.48 g, 0.093 mol), and the mixed solution was heated to reflux for 18 hours in an inert gas atmosphere. The reaction product was washed with ethyl acetate, H2O, and NH4OH, and an organic layer was obtained by extraction using CH2Cl2. The filtrate was purified through a silica gel filter, and the solvent was removed under reduced pressure to obtain 11.57 g (yield: 65%) of Intermediate 1-1.

[0617] (2) Synthesis of Intermediate 1-2

[0618] Intermediate 1-1 (10 g, 0.026 mol), picolinic acid (1.62 g, 0.013 mol), copper(I) iodide (1.0 g, 0.005 mol), and potassium phosphate tribasic (11.19 g, 0.053 mol) were dissolved in 50 mL of anhydrous dimethyl sulfoxide (DMSO), and then the mixed solution was filled with an inert gas. 3-Chlorophenol (3.73 g, 0.029 mol) was added thereto and allowed to react at 145°C for 18 hours. After the end of the reaction, the reaction product was cooled, and H2O was added thereto to produce a precipitate. The precipitate was filtered, dissolved in CH2Cl2, and rinsed with brine, and the organic layer obtained by extraction was dried with anhydrous MgSO4. The resulting product was concentrated under reduced pressure, and purified by column chromatography in the condition of CH2Cl2:hexane = 2:1 (volume ratio) to obtain 9.7 g (yield: 86%) of intermediate 1-2 as a white solid.

[0619] (3) Synthesis of intermediate 1-3

[0620] Intermediate 1-2 (9.0 g, 0.021 mol), quinazolin-2(1H)-one (3.08 g, 0.021 mol), [PdCl(C3H5)]2 (0.23 g, 0.6 mmol), di-tert-butyl(1-methyl-2,2-diphenylcyclopropyl)phosphine (0.89 g, 0.0025 mmol), and sodium 2-methylpropan-2-olate (7.9 g, 0.074 mol) were dissolved in 150 mL of anhydrous toluene, and the mixed solution was heated to reflux for 18 hours in an inert gas atmosphere. After removing the solvent under reduced pressure, the resulting product was purified by column chromatography in the condition of CH2Cl2:hexane = 4:1 (volume ratio) to obtain 8.46 g (yield: 75%) of intermediate 1-3 as a white solid.

[0621] (4) Synthesis of compound 1

[0622] Intermediate 1-3 (8.0 g, mol), dichloro(1,5-cyclooctadiene)platinum(II) (Pt(COD)Cl2) (6.71 g, 0.018 mol), and sodium acetate (0.11 g, 0.3 mol) were dissolved in 100 mL of 1,4-dioxane, and the mixed solution was heated to reflux at 120°C for 24 hours. The reaction product was concentrated under reduced pressure and purified by column chromatography to obtain 6.96 g (yield: 54%) of compound 1.

[0623] Synthesis Example 2: Synthesis of compound 2

[0624] Compound 2 (6.65 g, 59% yield) was synthesized in essentially the same manner as compound 1, except that 2-bromopyridine was used instead of 2-bromo-4-(tert-butyl)pyridine in the synthesis of intermediate 1-1.

[0625] Synthesis Example 3: Synthesis of Compound 3

[0626] Compound 3 (6.33 g, 55% yield) was synthesized in essentially the same manner as compound 1, except that 2-bromopyridine was used instead of 2-bromo-4-(tert-butyl)pyridine in the synthesis of intermediate 1-1, and pyrimidin-2(1H)-one was used instead of quinazoline-2(1H)-one in the synthesis of intermediate 1-3.

[0627] Synthesis Example 4: Synthesis of Compound 8

[0628] Compound 8 (7.23 g, 67.3% yield) was synthesized in essentially the same manner as compound 1, except that 5-phenylpyrimidin-2(1H)-one was used instead of quinazoline-2(1H)-one in the synthesis of intermediates 1-3.

[0629] Synthesis Example 5: Synthesis of Compound 31

[0630] Compound 31 (5.45 g, 52% yield) was synthesized in essentially the same manner as compound 1, except that 2,6-diphenylpyrimidin-4(3H)-one was used instead of quinazoline-2(1H)-one in the synthesis of intermediates 1-3.

[0631] Synthesis Example 6: Synthesis of Compound 34

[0632] Compound 34 (6.93 g, 64.5% yield) was synthesized in essentially the same manner as compound 1, except that 4-phenyl-1,3,5-triazine-2(1H)-one was used instead of quinazolin-2(1H)-one in the synthesis of intermediates 1-3.

[0633] Through proton nuclear magnetic resonance spectroscopy ( 1 ¹H NMR and mass spectrometry / fast atomic bombardment (MS / FAB) confirmed the synthesis of each compound according to the synthesis examples. The ¹H NMR of each of Synthetic Examples 1 to 6... 1 The 1H NMR and MS / FAB data are shown in Table 1. By referring to the synthetic route and starting materials, those skilled in the art can readily recognize the synthetic methods for other compounds besides those synthesized in the synthetic examples.

[0634] Table 1

[0635]

[0636]

[0637] Example

[0638] Example 1

[0639] As the anode, a 15Ω / cm anode is formed on it. 2 The glass substrate (Corning's product) of the thick ITO electrode is cut to a size of 50mm × 50mm × 0.7mm, ultrasonically treated with isopropanol and (then) pure water for 5 minutes each, cleaned by ultraviolet irradiation and exposure to ozone for 30 minutes, and then mounted on a vacuum deposition equipment.

[0640] The compound HT3 was vacuum deposited onto the anode to form a structure with... A hole transport layer of a certain thickness was formed, and compound HT40 was vacuum deposited on the hole transport layer to form a hole transport layer with a certain thickness. A launch auxiliary layer of a certain thickness.

[0641] Compounds H125, H126, and 1 were co-deposited in vacuum at a weight ratio of 45:45:10 on the emission-assisted layer to form a layer with... The thickness of the emission layer.

[0642] Compound ET37 was vacuum-deposited onto the emitter layer to form a structure with... A buffer layer of a certain thickness was formed, and compounds ET46 and Liq were co-deposited on the buffer layer in a 5:5 weight ratio under vacuum to form a buffer layer with [missing information]. An electron transport layer of a certain thickness was then formed. Subsequently, Yb was vacuum deposited onto the electron transport layer to form an electron transport layer with [missing information]. An electron-injected layer of a certain thickness was formed, and Ag and Mg were co-deposited in a 5:5 weight ratio under vacuum onto the electron-injected layer to form a layer with... A cathode of a certain thickness is used to manufacture a light-emitting device.

[0643]

[0644]

[0645] Examples 2 to 6 and Comparative Examples 1 to 3

[0646] The light-emitting devices were each manufactured in essentially the same manner as in Example 1, except that the compounds shown in Table 2 were used as dopants when forming the emitting layer.

[0647] Evaluation Example 1: Evaluation of the characteristics of a light-emitting device

[0648] To evaluate the characteristics of each of the light-emitting devices manufactured according to Examples 1 to 6 and Comparative Examples 1 to 3, measurements were taken at 1,000 cd / m².2 The maximum emission wavelength, driving voltage, and current efficiency (luminous efficiency) at a luminance of 1000 cd / m2of each of the light-emitting devices were measured, and the results are shown in Table 2. The driving voltage of each of the light-emitting devices was measured by using a source meter (Keithley Instrument, 2400 series), and the current efficiency (luminous efficiency) of each of the light-emitting devices was measured by using a luminance meter CS-2000 (Konica Minolta). In addition, in order to evaluate the device lifetime, a value obtained by comparing the time taken to reach 95% of the initial luminance in Comparative Example 1 with the time measured in each of Examples 1 to 6 and Comparative Examples 2 and 3, i.e., a relative device lifetime represented by the ratio of the time taken for the luminance of each of Examples 1 to 4 and Comparative Examples 2 and 3 to reach 95% of the initial luminance to the time taken for the luminance of Comparative Example 1 to reach 95% of the initial luminance, was calculated.

[0649] Table 2

[0650]

[0651]

[0652]

[0653] Referring to Table 2, it was confirmed that the light-emitting device of each of Examples 1 to 6 has a low driving voltage, a high luminous efficiency, and a significantly superior or appropriate device lifetime characteristic compared to the light-emitting devices of Comparative Examples 1 to 3.

[0654] According to one or more embodiments, the light-emitting device including the organometallic compound represented by Formula 1 can have a high luminous efficiency and a long device lifetime. In addition, high-quality electronic devices and high-quality electronic equipment can be manufactured by using the light-emitting device.

[0655] In summary, the light-emitting devices of Examples 1 to 6 exhibit a low driving voltage, a high luminous efficiency, and a significantly good device lifetime characteristic compared to Comparative Examples 1 to 3. As such, the embodiments featuring the organometallic compound represented by Formula 1 are expected to achieve a high luminous efficiency and a long device lifetime, ensuring the production of high-quality electronic devices and electronic equipment.

[0656] In the present disclosure, it will be understood that the terms "comprise(s) / comprising," "include(s) / including," or "have(s) / having" refer to the presence of the stated feature, integer, step, operation, element, and / or component but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. Additionally, the terms "comprise(s) / comprising," "include(s) / including," or "have(s) / having" encompass or support the terms "consist of" and "consist essentially of," which indicate the presence of the stated feature, integer, step, operation, element, and / or component, whether or not other features, integers, steps, operations, elements, components, and / or groups thereof are present.

[0657] In the context of the present application and unless otherwise defined, the terms "use," "using," and "used" can be considered synonymous with the terms "utilize," "utilizing," and "utilized," respectively.

[0658] Throughout the present disclosure, when referring to a component, such as a layer, film, region, or plate, being "on" another component, such as a layer, film, region, or plate, it will be understood that it can be directly on the other component, such as a layer, film, region, or plate, or yet another component, such as a layer, film, region, or plate, can be interposed therebetween. In some embodiments, "directly on" can refer to the absence of additional layers, films, regions, plates, etc. between a layer, film, region, plate, etc. and another component. For example, "directly on" can refer to disposing two layers or two members without using additional members, such as adhesive members, therebetween.

[0659] In the present disclosure, although the terms "first," "second," etc. can be used herein to describe one or more elements, components, regions, and / or layers, these elements, components, regions, and / or layers should not be limited by these terms. These terms are only used to distinguish one component from another.

[0660] 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, the use of "may" when describing embodiments of the present disclosure refers to "one or more embodiments of the present disclosure."

[0661] As used herein, the term "substantially," "about," or similar terms are used as terms of approximation and not as terms of degree, and are intended to account for the inherent deviations in measured or calculated values that would be apparent to one of ordinary skill in the art. As used herein, "about" includes the recited value and means within a range of acceptable deviation of the specified value as determined by one of ordinary skill in the art considering the measurement involved and the error inherent in the measurement of the particular quantity (i.e., the limitations in the measurement system). For example, "about" can mean within one or more standard deviations, or within ±30%, ±20%, ±10%, or ±5% of the recited value.

[0662] Any numerical range recited herein is intended to include all sub-ranges of the same numerical precision subsumed within the recited range. For example, a range of "1.0 to 10.0" is intended to include all sub-ranges between (and including) the recited minimum and maximum values, i.e., having a minimum value equal to or greater than 1.0 and a maximum value equal to or less than 10.0, so as to include, for example, the sub-range 2.4 to 7.6. Any maximum numerical limitation recited herein is intended to include all lower numerical limitations subsumed therein and any minimum numerical limitation recited in this disclosure is intended to include all higher numerical limitations subsumed therein. Accordingly, Applicant reserves the right to amend this disclosure, including the claims, to expressly recite any sub-range subsumed within the ranges expressly recited herein.

[0663] The light emitting device, light emitting apparatus, display device, electronic device, electronic apparatus, device for manufacturing the same, or any other related device or component according to embodiments of the present disclosure described herein can be implemented using any suitable hardware, firmware (e.g., dedicated integrated circuit), software, or a combination of software, firmware, and hardware. For example, various components of the device can be formed on one integrated circuit (IC) chip or on separate IC chips. Also, various components of the device can be implemented on a flexible printed circuit film, a tape carrier package, or a printed circuit board (PCB), or formed on one substrate. Also, various components of the device can be processes or threads running on one or more processors in one or more computing devices, executing computer program instructions and interacting with other system components for performing the various functionalities described herein. The computer program instructions can be stored in a memory that can be implemented in the computing device using a standard memory device, such as, for example, a random access memory (RAM). The computer program instructions can also be stored in another non-transitory computer readable medium, such as, for example, a CD-ROM or a flash drive, etc. Also, those skilled in the art will appreciate that functions of various computing devices can be combined or integrated into a single computing device, or functions of a particular computing device can be distributed across one or more other computing devices, without departing from the scope of embodiments of the present disclosure.

[0664] It is to be understood that the embodiments described herein are to be considered in a descriptive sense only and not for purposes of limitation. Descriptions of features or aspects in each of the embodiments typically apply to other similar features or aspects in one or more embodiments. While one or more embodiments have been described with reference to the figures, it will be understood by those of ordinary skill in the art that various changes in form and details can be made therein without departing from the spirit and scope as defined by the following claims and their equivalents.

Claims

1. A light-emitting device, comprising: First electrode; A second electrode opposite to the first electrode; An interlayer comprising an emission layer between the first electrode and the second electrode; as well as Organometallic compounds represented by Formula 1: Formula 1 In Equation 1, M1 can be platinum, palladium, copper, silver, gold, rhodium, iridium, ruthenium, osmium, titanium, zirconium, hafnium, europium, terbium, or thulium. CY 20 CY 30 and CY 40 Each independently is C5-C 30 Carbocyclic or C1-C 30 Heterocyclic group, T 11 T 12 T2, T3, and T4 each independently indicate chemical bonds. Y 10 Y 15 Y 20 Y 30 and Y 40 Each can be independently represented as C or N. Y 11 For N or C(R) 11 ), Y 12 For N or C(R) 12 ), Y 13 For N or C(R) 13 ), Y 14 For N or C(R) 14 ), Selected from Y 10 To Y 15 Two or more of them are each N. L 14 L 23 and L 34 Each can be independently a single bond, *-O-*', *-S-*', *-C(R5)(R6)-*', *-C(R5)=*', *=C(R5)-*', *-C(R5)=C(R6)-*', *-C(=O)-*', *-C(=S)-*', *-C≡C-*', *-B(R5)-*', *-N(R5)-*', *-P(R5)-*', *-Si(R5)(R6)-*', *-P(R5)(R6)-*', or *-Ge(R5)(R6)-*'. a14, a23, and a34 are each independent integers selected from 0 to 5, where i) when a14 is 0, then *-(L 14 ) a14 -*' represents a single bond, ii) when a23 is 0, then *-(L 23 ) a23 -*' is a single bond, and iii) when a34 is 0, then *-(L 34 ) a34 -*' represents a single key. R 11 To R 14 R2 through R6 are each independently hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amido, hydrazine, hydrazone, unsubstituted, or substituted with at least one R. 10a Replacement C1-C 60 Alkyl, unsubstituted, or with at least one R 10a Replacement C2-C 60 alkenyl, unsubstituted or with at least one R 10a Replacement C2-C 60 Alkyne group, unsubstituted or with at least one R 10a Replacement C1-C 60 Alkyl, unsubstituted, or with at least one R 10a Replacement C3-C 10 Cycloalkyl, unsubstituted, or with at least one R 10a Replacement C1-C 10 Heterocyclic alkyl, unsubstituted, or with at least one R 10a Replacement C3-C 10 Cycloalkenyl, unsubstituted, or with at least one R 10a Replacement C1-C 10 Heterocyclic alkenyl, unsubstituted, or with at least one R 10a Replacement C6-C 60 aryl, unsubstituted, or with at least one R 10a Replacement C6-C 60 aryloxy group, unsubstituted or with at least one R 10a Replacement C6-C 60 Aryl thiols, unsubstituted or with at least one R 10a Replacement C1-C 60 heteroaryl, unsubstituted or with at least one R 10a Replacement C1-C 60 Heteroaryl groups, unsubstituted or with at least one R 10a Replacement C1-C 60 Heteroaryl thiols, unsubstituted or with at least one R 10a Substituted monovalent non-aromatic fused polycyclic groups, unsubstituted or substituted with at least one R 10a Substituted monovalent non-aromatic fused heterocyclic groups, -Si(Q1)(Q2)(Q3), -B(Q1)(Q2), -N(Q1)(Q2), -P(Q1)(Q2), -C(=O)(Q1), -S(=O)(Q1), -S(=O)2(Q1), -P(=O)(Q1)(Q2) or -P(=S)(Q1)(Q2), Selected from R 11 To R 14 Two or more adjacent groups from R2 to R6 are optionally bonded to each other to form an unsubstituted or substituted compound. 10a Replacement C5-C 60 The carbocyclic group is either unsubstituted or has at least one R group. 10a Replacement C1-C 60 Heterocyclic group, n2 to n4 are each an independent integer selected from 0 to 10. R 10a for: Deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, amidine, hydrazine, hydrazone, or nitro; Each of the following C1-C that is not substituted or is substituted: 60 Alkyl, C2-C 60 alkenyl, C2-C 60 alkynyl or C1-C 60 Alkoxy groups: deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, C3-C 60 Carbocyclic group, C1-C 60 Heterocyclic group, C6-C 60 Aryloxy group, C6-C 60 Arylthio, C1-C 60 Heteroaryloxy, C1-C 60 heteroaryl thiols, C7-C 60 Aryl alkyl, C2-C 60 heteroaryl, -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 of the following C3-Cs that are not substituted or are substituted by: 60 Carbocyclic group, C1-C 60 Heterocyclic group, C6-C 60 aryloxy or C6-C 60 Aryl thiols: deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, C1-C 60 Alkyl, C2-C 60 alkenyl, C2-C 60 Alkyne group, C1-C 60 Alkoxy, C3-C 60 Carbocyclic group, C1-C 60 Heterocyclic group, C6-C 60 Aryloxy group, C6-C 60 Arylthio, C1-C 60 Heteroaryloxy, C1-C 60 heteroaryl thiols, C7-C 60 Aryl alkyl, C2-C 60 heteroaryl, -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 ),and Q1 to Q3, Q 11 To Q 13 Q 21 To Q 23 and Q 31 To Q 33 Each of the following is independently: hydrogen; deuterium; -F; -Cl; -Br; -I; hydroxyl; cyano; amidine; hydrazine; hydrazone; nitro; C1-C 60 Alkyl; C2-C 60 Alkenyl; C2-C 60 Alkyne group; C1-C 60 Alkyl groups; each unsubstituted or substituted with deuterium, -F, cyano, C1-C 60 Alkyl, C1-C 60 C3-C substituted with alkoxy, phenyl, biphenyl or any combination thereof 60 Carbocyclic or C1-C 60 Heterocyclic group; C7-C 60 Aryl alkyl group; or C2-C 60 Heteroalkyl groups.

2. The light-emitting device according to claim 1, wherein... The first electrode is the anode. The second electrode is the cathode. The interlayer further includes a hole transport region between the first electrode and the emitter layer, and an electron transport region between the emitter layer and the second electrode. The hole transport region includes a hole injection layer, a hole transport layer, an emission assist layer, an electron blocking layer, or any combination thereof, and The electron transport region includes a hole blocking layer, an electron transport layer, an electron injection layer, an electron control layer, or any combination thereof.

3. The light-emitting device according to claim 1, wherein the emitting layer comprises the organometallic compound represented by Formula 1.

4. The light-emitting device according to claim 1, wherein... The emitter layer includes a host and a dopant, and The dopant includes the organometallic compound represented by Formula 1.

5. The light-emitting device according to claim 1, wherein the emitting layer is used to emit light having a maximum emission wavelength in the range of 540 nm to 590 nm.

6. The light-emitting device according to claim 4, wherein... The main body includes a first main compound and a second main compound. The first host compound is a hole transport host, and The second host compound is an electron transport host.

7. An electronic device comprising a light-emitting device according to any one of claims 1 to 6.

8. The electronic device according to claim 7, further comprising: Thin-film transistors, in which The thin-film transistor includes a source electrode and a drain electrode, and The first electrode of the light-emitting device is electrically connected to the source electrode or the drain electrode of the thin-film transistor.

9. An electronic device comprising the light-emitting device according to any one of claims 1 to 6.

10. The electronic device according to claim 9, wherein The electronic equipment is at least one of the following: flat panel display, curved display, computer monitor, medical monitor, television, billboard, indoor light, outdoor light, signal transmission light, head-up display, fully transparent display, partially transparent display, flexible display, rollable display, foldable display, retractable display, laser printer, telephone, portable telephone, tablet PC, tablet computer, personal digital assistant, wearable device, laptop computer, digital camera, camcorder, viewfinder, microdisplay, 3D display, virtual reality display, augmented reality display, vehicle, video wall with multiple displays spliced ​​together, theater screen, stadium screen, phototherapy device, and signboard.

11. An organometallic compound represented by Formula 1: Formula 1 in, In Equation 1, M1 can be platinum, palladium, copper, silver, gold, rhodium, iridium, ruthenium, osmium, titanium, zirconium, hafnium, europium, terbium, or thulium. CY 20 CY 30 and CY 40 Each independently is C5-C 30 Carbocyclic or C1-C 30 Heterocyclic group, T 11 T 12 T2, T3, and T4 each independently indicate chemical bonds. Y 10 Y 15 Y 20 Y 30 and Y 40 Each can be independently represented as C or N. Y 11 For N or C(R) 11 ), Y 12 For N or C(R) 12 ), Y 13 For N or C(R) 13 ), Y 14 For N or C(R) 14 ), Selected from Y 10 To Y 15 Two or more of them are each N. L 14 L 23 and L 34 Each can be independently a single bond, *-O-*', *-S-*', *-C(R5)(R6)-*', *-C(R5)=*', *=C(R5)-*', *-C(R5)=C(R6)-*', *-C(=O)-*', *-C(=S)-*', *-C≡C-*', *-B(R5)-*', *-N(R5)-*', *-P(R5)-*', *-Si(R5)(R6)-*', *-P(R5)(R6)-*', or *-Ge(R5)(R6)-*'. a14, a23, and a34 are each independent integers selected from 0 to 5, where i) when a14 is 0, then *-(L 14 ) a14 -*' represents a single bond, ii) when a23 is 0, then *-(L 23 ) a23 -*' is a single bond, and iii) when a34 is 0, then *-(L 34 ) a34 -*' represents a single key. R 11 To R 14 R2 through R6 are each independently hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amido, hydrazine, hydrazone, unsubstituted, or substituted with at least one R. 10a Replacement C1-C 60 Alkyl, unsubstituted, or with at least one R 10a Replacement C2-C 60 alkenyl, unsubstituted or with at least one R 10a Replacement C2-C 60 Alkyne group, unsubstituted or with at least one R 10a Replacement C1-C 60 Alkyl, unsubstituted, or with at least one R 10a Replacement C3-C 10 Cycloalkyl, unsubstituted, or with at least one R 10a Replacement C1-C 10 Heterocyclic alkyl, unsubstituted, or with at least one R 10a Replacement C3-C 10 Cycloalkenyl, unsubstituted, or with at least one R 10a Replacement C1-C 10 Heterocyclic alkenyl, unsubstituted, or with at least one R 10a Replacement C6-C 60 aryl, unsubstituted, or with at least one R 10a Replacement C6-C 60 aryloxy group, unsubstituted or with at least one R 10a Replacement C6-C 60 Aryl thiols, unsubstituted or with at least one R 10a Replacement C1-C 60 heteroaryl, unsubstituted or with at least one R 10a Replacement C1-C 60 Heteroaryl groups, unsubstituted or with at least one R 10a Replacement C1-C 60 Heteroaryl thiols, unsubstituted or with at least one R 10a Substituted monovalent non-aromatic fused polycyclic groups, unsubstituted or substituted with at least one R 10a Substituted monovalent non-aromatic fused heterocyclic groups, -Si(Q1)(Q2)(Q3), -B(Q1)(Q2), -N(Q1)(Q2), -P(Q1)(Q2), -C(=O)(Q1), -S(=O)(Q1), -S(=O)2(Q1), -P(=O)(Q1)(Q2) or -P(=S)(Q1)(Q2), Selected from R 11 To R 14 Two or more adjacent groups from R2 to R6 are optionally bonded to each other to form an unsubstituted or substituted compound. 10a Replacement C5-C 60 The carbocyclic group is either unsubstituted or has at least one R group. 10a Replacement C1-C 60 Heterocyclic group, n2 to n4 are each an independent integer selected from 0 to 10. R 10a for: Deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, amidine, hydrazine, hydrazone, or nitro; Each of the following C1-C that is not substituted or is substituted: 60 Alkyl, C2-C 60 alkenyl, C2-C 60 alkynyl or C1-C 60 Alkoxy groups: deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, C3-C 60 Carbocyclic group, C1-C 60 Heterocyclic group, C6-C 60 Aryloxy group, C6-C 60 Arylthio, C1-C 60 Heteroaryloxy, C1-C 60 heteroaryl thiols, C7-C 60 Aryl alkyl, C2-C 60 heteroaryl, -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 of the following C3-Cs that are not substituted or are substituted by: 60 Carbocyclic group, C1-C 60 Heterocyclic group, C6-C 60 aryloxy or C6-C 60 Aryl thiols: deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, C1-C 60 Alkyl, C2-C 60 alkenyl, C2-C 60 Alkyne group, C1-C 60 Alkoxy, C3-C 60 Carbocyclic group, C1-C 60 Heterocyclic group, C6-C 60 Aryloxy group, C6-C 60 Arylthio, C1-C 60 Heteroaryloxy, C1-C 60 heteroaryl thiols, C7-C 60 Aryl alkyl, C2-C 60 heteroaryl, -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 ),and Q1 to Q3, Q 11 To Q 13 Q 21 To Q 23 and Q 31 To Q 33 Each of the following is independently: hydrogen; deuterium; -F; -Cl; -Br; -I; hydroxyl; cyano; amidine; hydrazine; hydrazone; nitro; C1-C 60 Alkyl; C2-C 60 Alkenyl; C2-C 60 Alkyne group; C1-C 60 Alkyl groups; each unsubstituted or substituted with deuterium, -F, cyano, C1-C 60 Alkyl, C1-C 60 C3-C substituted with alkoxy, phenyl, biphenyl or any combination thereof 60 Carbocyclic or C1-C 60 Heterocyclic group; C7-C 60 Aryl alkyl group; or C2-C 60 Heteroalkyl groups.

12. The organometallic compound according to claim 11, wherein... CY 20 CY 30 and CY 40 Each of the following groups is independently phenyl, naphthyl, anthracene, phenanthrene, triphenylene, indolyl, benzoboranecyclopentadienyl, benzophoscyclopentadienyl, indene, benzothiophene, benzogermanium heterocyclopentadienyl, benzothiophene, benzoselenyl, benzofuranyl, carbazole, dibenzoboranecyclopentadienyl, dibenzophoscyclopentadienyl, fluorenyl, dibenzothiophene, dibenzogermanium heterocyclopentadienyl, dibenzothiophene, dibenzoselenyl, dibenzofuranyl, dibenzothiophene- 5-oxide group, 9H-fluorene-9-one group, dibenzothiophene-5,5-dioxide group, pyridinyl group, pyrimidinyl group, pyrazinyl group, pyridazinyl group, triazinyl group, quinolinyl group, isoquinolinyl group, quinoxolinyl group, quinoxolinyl group, phenanthrolineyl group, pyrroleyl group, pyrazolyl group, imidazoleyl group, triazolyl group, oxazolyl group, isoxazolyl group, thiazolyl group, isothiazolyl group, oxadiazolyl group, thiazolyl group, benzopyrazolyl group, benzoimidazolyl group, benzooxazolyl group, benzothiazolyl group, benzooxadiazolyl group or benzothiadiazolyl group.

13. The organometallic compound according to claim 11, wherein T 12 Covalent bonds can be in the form of single or double bonds.

14. The organometallic compound according to claim 11, wherein the organometallic compound represented by formula 1 is an organometallic compound represented by formula 11: Formula 11 In Equation 11, M1, CY 20 CY 30 CY 40 T 11 T2 to T4, Y 10 To Y 15 Y 20 Y 30 Y 40 L 14 L 23 L 34 a14, a23, a34, R2 to R4 and n2 to n4 are each the same as those defined in Equation 1.

15. The organometallic compound according to claim 11, wherein... a14 and a23 are both 0. L 14 and L 23 Each is a single key. a34 is 1, and L 34 It can be *-O-*' or *-S-*'.

16. The organometallic compound according to claim 11, wherein the organometallic compound represented by formula 1 is an organometallic compound selected from any one of formulas 20 to 24: Formula 20 Formula 21 Formula 22 Formula 23 Formula 24 In equations 20 to 24, M1, CY 20 CY 30 CY 40 T 11 T2 to T4, Y 20 Y 30 Y 40 L 14 L 23 L 34 a14, a23, a34, R 11 To R 14 R2 to R4 and n2 to n4 are each the same as those defined in Equation 1.

17. The organometallic compound according to claim 11, wherein... R 11 To R 14 R2 through R6 are each selected independently from: Hydrogen, deuterium, -F, -Cl, -Br, -I, cyano, C1-C 20 Alkyl and C1-C 20 Alkoxy; C1-C atoms each substituted with deuterium, -F, -Cl, -Br, -I, cyano, phenyl, biphenyl, or any combination thereof 20 Alkyl and C1-C 20 alkoxy groups; and Groups represented by any one of Formulas 5-1 to 5-26 and Formulas 6-1 to 6-55; and Selected from R 11 To R 14 It is optionally bonded together with two or more adjacent groups from R2 to R6 to form: Cyclopentyl, cyclohexyl, cycloheptyl, phenyl, naphthyl, fluorenyl, or carbazole; or Cyclopentyl, cyclohexyl, cycloheptyl, phenyl, naphthyl, fluorenyl, or carbazole groups, each substituted with deuterium, -F, -Cl, -Br, -I, cyano, phenyl, biphenyl, or any combination thereof: and in, In equations 5-1 to 5-26 and equations 6-1 to 6-55, Y 31 and Y 32 Each is independently represented by O, S, Se, C(Z) 33 (Z) 34 ), N(Z 33 ) or Si(Z 33 (Z) 34 ), Z 31 To Z 34 Each is independently selected from hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidine, hydrazine, hydrazone, C1-C 20 Alkyl, C2-C 20 alkenyl, C2-C 20 Alkyne group, C1-C 20 Alkoxy, phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spirodifluorenyl, phenanthryl, anthraceneyl, triphenylene, pyridyl, pyrimidinyl, carbazoleyl, and triazineyl. e2 is 1 or 2. e3 is an integer selected from 1 to 3. e4 is an integer selected from 1 to 4. e5 is an integer selected from 1 to 5. e6 is an integer selected from 1 to 6. e7 is an integer selected from 1 to 7. e9 is an integer selected from 1 to 9, and * Indicates the binding site with adjacent atoms.

18. The organometallic compound according to claim 11, wherein the organometallic compound represented by formula 1 is an organometallic compound represented by formula 31: Formula 31 and in, In Equation 31, M1, T 11 T2 to T4, Y 10 To Y 15 L 34 R and R3 are the same as those defined in Equation 1. CY 31 C5-C 15 Carbocyclic or C1-C 15 Heterocyclic group, n31 is an integer selected from 0 to 10. Y 21 For N or C(R) 21 ), Y 22 For N or C(R) 22 ), Y 23 For N or C(R) 23 ), and Y 24 For N or C(R) 24 ), Y 31 For N or C(R) 31 And Y 32 For N or C(R) 32 ), Y 41 For N or C(R) 41 ), Y 42 For N or C(R) 42 ), and Y 43 For N or C(R) 43 ), R 21 To R 24 Each is independently identical to the one that limits R2 in Equation 1. R 31 and R 32 Each is independently identical to the limitation on R3 in Equation 1, and R 41 To R 43 Each is independently identical to the limitation on R4 in Equation 1.

19. The organometallic compound according to claim 11, wherein the organometallic compound represented by formula 1 is an organometallic compound represented by formula 41: Formula 41 and in, In Equation 41, M1, T 11 T2 to T4, Y 10 To Y 15 and L 34 Each is the same as that defined in Equation 1. Y 21 For N or C(R) 21 ), Y 22 For N or C(R) 22 ), Y 23 For N or C(R) 23 ), and Y 24 For N or C(R) 24 ), Y 31 For N or C(R) 31 ), Y 32 For N or C(R) 32 ), Y 33 For N or C(R) 33 ), Y 34 For N or C(R) 34 ), Y 35 For N or C(R) 35 ), and Y 36 For N or C(R) 36 ), Y 41 For N or C(R) 41 ), Y 42 For N or C(R) 42 ), and Y 43 For N or C(R) 43 ), R 21 To R 24 Each is independently identical to the one that limits R2 in Equation 1. R 31 To R 36 Each is independently identical to the limitation on R3 in Equation 1, and R 41 To R 43 Each is independently identical to the limitation on R4 in Equation 1.

20. The organometallic compound according to claim 11, wherein the organometallic compound represented by formula 1 is any one of compound 1 to compound 35:

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