Light-emitting device, electronic device, electronic equipment and organometallic compound

Abstract

Provided are a light-emitting device including an organic metal compound represented by Formula 1, electronic devices and electronic equipment each including the light-emitting device, and the organic metal compound represented by Formula 1. Formula 1 The detailed description of Formula 1 is the same as described in the specification.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to and the benefit of Korean Patent Application No. 10-2023-0133685 filed in the Korean Intellectual Property Office on October 6, 2023, the entire contents of which are incorporated herein by reference. Technical Field

[0003] The embodiments of the present disclosure described herein relate to a light-emitting device including an organometallic compound, electronic devices and electronic equipment each including the light-emitting device, and the organometallic compound. Background Art

[0004] Among light emitting devices, self-emitting devices have a relatively wide viewing angle, a relatively high contrast ratio, and a relatively short response time, and also have excellent or suitable characteristics in terms of brightness, driving voltage, and response speed.

[0005] In the light-emitting device, a first electrode is arranged on a substrate, and a hole transport region, an emission layer, an electron transport region, and a second electrode are arranged on the first electrode in sequence. Holes provided by the first electrode move toward the emission layer through the hole transport region, and electrons provided by the second electrode move toward the emission layer through the electron transport region. Carriers such as holes and electrons recombine in the emission layer to generate excitons. These excitons transition (e.g., relax) from an excited state to a ground state, thereby generating light. Summary of the invention

[0006] Aspects according to one or more embodiments of the present disclosure relate to a light-emitting device including an organometallic compound, electronic equipment and electronic equipment each including the light-emitting device, and the organometallic compound.

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

[0008] According to one or more embodiments, the light emitting device comprises:

[0009] The first electrode,

[0010] a second electrode opposite to the first electrode (eg, opposite to and facing the first electrode),

[0011] an intermediate layer disposed between the first electrode and the second electrode and including an emission layer, and

[0012] An organometallic compound represented by Formula 1:

[0013] Formula 1

[0014]

[0015] Among them, in formula 1,

[0016] M may be platinum (Pt), palladium (Pd), copper (Cu), silver (Ag), gold (Au), rhodium (Rh), ruthenium (Ru), osmium (Os), titanium (Ti), zirconium (Zr), hafnium (Hf), europium (Eu), terbium (Tb) or thulium (Tm),

[0017] X 1 To X 4 can each independently be C or N,

[0018] Cyclo 1 CY 2 and CY 4 Can be C independently 5 -C 30 Carbocyclic group or C 1 -C 30 Heterocyclic groups,

[0019] T 1 It can be C, Si or Ge,

[0020] L 1 To L 4 can each independently be a single bond, *-C(R 1a )(R 1b )-*'、*-C(R 1a )=*'、*=C(R 1a )-*'、*-C(R 1a )=C(R 1b )-*', *-C(=O)-*', *-C(=S)-*', *-C≡C-*', *-B(R 1a )-*'、*-N(R 1a )-*'、*-O-*'、*-P(R 1a )-*'、*-Al(R 1a )-*、*-Si(R 1a )(R 1b )-*'、*-P(=O)(R 1a )-*'、*-S-*'、*-S(=O)-*'、*-S(=O) 2 -*'or*-Ge(R 1a )(R 1b )-*', and * and *' are each a binding site with an adjacent atom,

[0021] n1 to n4 may each independently be an integer from 1 to 10,

[0022] R 1 , R 2 , R 31 To R 35 , R 4 , R 1a and R 1b can be each independently hydrogen, deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Alkyl groups, unsubstituted or substituted with at least one R 10a Substituted C 2 -C 60 Alkenyl groups, unsubstituted or substituted with at least one R 10a Substituted C 2 -C 60 Alkynyl groups, unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Alkoxy groups, unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Alkylthio groups, unsubstituted or substituted with at least one R 10a Substituted C 3 -C 60 Carbocyclic group, unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Heterocyclic group, unsubstituted or substituted with at least one R 10a Substituted C 6 -C 60 Aryloxy groups, unsubstituted or substituted with at least one R 10a Substituted C 6 -C 60 Arylthio group, -C(Q 1 )(Q 2 )(Q 3 )、-Si(Q 1 )(Q 2 )(Q 3 )、-N(Q 1 )(Q 2 )、-B(Q 1 )(Q 2 )、-C(=O)(Q 1 )、-S(=O) 2 (Q 1 ) or -P(=O)(Q 1 )(Q 2 ),

[0023] a1, a2 and a4 can each independently be an integer from 1 to 20,

[0024] a31 and a32 can each independently be 1 or 2, and

[0025] a33 to a35 may each independently be an integer from 1 to 4,

[0026] In the embodiment, a1 R 1 、a2R 2 、a31 R 31 、a32 R 32 、a33 R 33 、a34 R 34 、a35R 35 、a4R 4 , R 1a and R 1b Two or more adjacent groups in the formula (R) may optionally be combined with one another to form an unsubstituted or substituted group. 10a Substituted C 3 -C 60 The carbocyclic group is either unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Heterocyclic groups, and

[0027] R 10a Can be

[0028] deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group or a nitro group,

[0029] Each is unsubstituted or substituted with deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, C 3 -C 60 Carbocyclic group, C 1 -C 60 Heterocyclic group, C 6 -C 60 Aryloxy group, C 6 -C 60 Arylthio group, -Si(Q 11 )(Q 12 )(Q 13 )、-N(Q 11 )(Q 12 )、-B(Q 11 )(Q 12 )、-C(=O)(Q 11 )、-S(=O) 2 (Q 11 )、-P(=O)(Q 11 )(Q12 ) or a combination thereof substituted C 1 -C 60 Alkyl group, C 2 -C 60 Alkenyl group, C 2 -C 60 Alkynyl group or C 1 -C 60 Alkoxy groups,

[0030] Each is unsubstituted or substituted with deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, C 1 -C 60 Alkyl group, C 2 -C 60 Alkenyl group, C 2 -C 60 Alkynyl group, C 1 -C 60 Alkoxy groups, C 3 -C 60 Carbocyclic group, C 1 -C 60 Heterocyclic group, C 6 -C 60 Aryloxy group, C 6 -C 60 Arylthio group, -Si(Q 21 )(Q 22 )(Q 23 )、-N(Q 21 )(Q 22 )、-B(Q 21 )(Q 22 )、-C(=O)(Q 21 )、-S(=O) 2 (Q 21 )、-P(=O)(Q 21 )(Q 22 ) or a combination thereof substituted C 3 -C 60 Carbocyclic group, C 1 -C 60 Heterocyclic group, C 6 -C 60 Aryloxy group or C 6 -C 60 an arylthio group, or

[0031] -Si(Q 31 )(Q 32 )(Q 33 )、-N(Q 31 )(Q 32 )、-B(Q 31 )(Q32 )、-C(=O)(Q 31 )、-S(=O) 2 (Q 31 ) or -P(=O)(Q 31 )(Q 32 ),

[0032] Where Q 1 To Q 3 , Q 11 To Q 13 , Q 21 To Q 23 and Q 31 To Q 33 can each independently be: hydrogen; deuterium; -F; -Cl; -Br; -I; a hydroxyl group; a cyano group; a nitro group; C 1 -C 60 Alkyl group; C 2 -C 60 Alkenyl group; C 2 -C 60 Alkynyl group; C 1 -C 60 alkoxy groups; or each unsubstituted or substituted with deuterium, -F, cyano groups, C 1 -C 60 Alkyl group, C 1 -C 60 Alkoxy group, phenyl group, biphenyl group or any combination thereof substituted C 3 -C 60 Carbocyclic group or C 1 -C 60 Heterocyclic group.

[0033] According to one or more embodiments, an electronic device comprises the light emitting device.

[0034] According to one or more embodiments, an electronic equipment comprises the light emitting device.

[0035] According to one or more embodiments, the organometallic compound may be represented by Formula 1. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The above and other aspects, features and advantages of certain embodiments of the present disclosure will become more apparent from the following description taken in conjunction with the accompanying drawings, in which:

[0037] Figure 1 is a schematic diagram of the structure of a light emitting device according to the embodiment;

[0038] Figure 2 is a schematic diagram of a structure of an electronic device according to an embodiment;

[0039] Figure 3 is a schematic diagram of a structure of an electronic device according to another embodiment;

[0040] Figure 4 , Figure 5 , Fig. 6A , Figure 6B and Figure 6C Each is a schematic diagram of a structure of electronic equipment according to an embodiment. DETAILED DESCRIPTION

[0041] Reference will now be made in more detail to the embodiments, examples of which are illustrated in the accompanying drawings, wherein the same reference numerals refer to the same elements throughout, and a repeated description thereof may not be provided. In this regard, the embodiments may have different forms and should not be construed as being limited to the description set forth herein. Therefore, the embodiments are only described herein with reference to the accompanying drawings to explain aspects of the description.

[0042] As used herein, the term "and / or" includes any and all combinations of one or more than one of the associated listed items. Throughout the disclosure, the expressions "at least one of a, b, and c," "at least one of ac," "at least one of a to c," "at least one of a, b, and / or c," "at least one of a to c," etc., mean only a, only b, only c, both a and b (e.g., simultaneously), both a and c (e.g., simultaneously), both b and c (e.g., simultaneously), all of a, b, and c, or variations thereof.

[0043] In this specification, “including A or B”, “A and / or B”, etc. means A or B, or A and B.

[0044] As used herein, the terms "substantially", "about" and similar terms are used as terms of approximation rather than as terms of degree, and are intended to account for the inherent deviations in measured or calculated values ​​that would be recognized by those of ordinary skill in the art. "Substantially" as used herein includes the specified value and means within an acceptable range of deviations of a particular value as determined by one of ordinary skill in the art taking into account the relevant measurements and the errors associated with the measurement of a particular quantity (i.e., the limits of the measurement system). For example, "substantially" can mean within one or more than one standard deviation, or within ±30%, ±20%, ±10%, ±5% of a specified value.

[0045] In addition, any numerical range listed herein is intended to include all sub-ranges of the same numerical precision within the listed range. For example, the range of "1.0 to 10.0" is intended to include all sub-ranges between the listed minimum value 1.0 and the listed maximum value 10.0 (and including the end value), that is, having a minimum value equal to or greater than 1.0 and a maximum value equal to or less than 10.0, such as 2.4 to 7.6. Any maximum numerical value listed herein is intended to include all lower numerical limits included therein, and any minimum numerical value listed in this specification is intended to include all higher numerical limits included therein. Therefore, the applicant reserves the right to modify this specification (including claims) to explicitly list any sub-ranges within the range explicitly listed herein.

[0046] Additionally, the use of "may" when describing embodiments of the present disclosure means "one or more than one embodiment of the present disclosure."

[0047] 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.

[0048] In the present disclosure, "does not include 'component' or does not include any 'component'", "excludes 'component' or excludes any 'component'", "does not contain 'component'" and the like mean that the 'component' is not added, selected or used as a component in the composition / structure, but due to other impurities and / or external factors, less than an appropriate amount of the 'component' may still be included.

[0049] In the present disclosure, when a dot, dots or dot particles are spherical, "diameter" means the particle diameter or the average particle diameter, and when the particles are non-spherical, "diameter" means the major axis length or the average major axis length. The diameter of the particles can be measured using a scanning electron microscope or a particle size analyzer. As a particle size analyzer, for example, HORIBA, LA-950 laser particle size analyzer can be used. When the size of the particles is measured using a particle size analyzer, the average particle diameter is referred to as D50. D50 refers to the average diameter of the particles whose cumulative volume corresponds to 50% by volume in a particle size distribution (e.g., cumulative distribution), and refers to the value of the particle size corresponding to 50% from the smallest particle when the total number of particles is 100% in a distribution curve accumulated in the order of the smallest particle size to the largest particle size.

[0050] A light emitting device is provided, comprising:

[0051] a first electrode;

[0052] a second electrode opposite to the first electrode (eg, opposite to and facing the first electrode);

[0053] an intermediate layer disposed between the first electrode and the second electrode and including an emission layer; and

[0054] An organometallic compound represented by Formula 1:

[0055] Formula 1

[0056]

[0057] The details regarding Formula 1 are each the same as described herein.

[0058] In an implementation scheme,

[0059] The first electrode of the light emitting device may be an anode,

[0060] The second electrode of the light emitting device may be a cathode,

[0061] The intermediate layer may further include a hole transport region disposed between the first electrode and the emission layer and an electron transport region disposed between the emission layer and the second electrode,

[0062] The hole transport region may include a hole injection layer, a hole transport layer, an emission assisting layer, an electron blocking layer, or a combination thereof, and

[0063] The electron transport region may include a hole blocking layer, an electron transport layer, an electron injection layer, or a combination thereof.

[0064] In one or more than one embodiments, the intermediate layer of the light-emitting device may include the organometallic compound represented by Formula 1.

[0065] In one or more than one embodiments, the emission layer of the light emitting device may include the organometallic compound represented by Formula 1.

[0066] In one or more embodiments, the emission layer of the light-emitting device may include a dopant and a host, and the organometallic compound represented by Formula 1 may be included in the dopant. For example, the organometallic compound may be used as a dopant. For example, the emission layer may be configured to emit blue light. The blue light may have a maximum emission wavelength of, for example, about 430 nm to about 480 nm.

[0067] In one or more embodiments, the electron transport region of the light emitting device may include a hole blocking layer, and the hole blocking layer may include a phosphine oxide-containing compound, a silicon-containing compound, or a combination thereof. In embodiments, the hole blocking layer may directly contact the emissive layer.

[0068] In an embodiment, the light emitting device may further include a nitrogen-containing C 1 -C 60a second compound containing a heterocyclic group, a third compound containing a group represented by Formula 3, a fourth compound capable of emitting delayed fluorescence, or a combination thereof, and

[0069] The organometallic compound, the second compound, the third compound, and the fourth compound in the light-emitting device may be different from each other.

[0070] Formula 3

[0071]

[0072] Among them, in formula 3,

[0073] Cyclo 71 and CY 72 can be independently π-electron-rich C 3 -C 60 a cyclic group or a pyridine group,

[0074] X 71 can be a single bond or a linking group comprising O, S, N, B, C, Si or a combination thereof, and

[0075] * represents a binding site with any atom included in the remaining parts other than Formula 3 in the third compound.

[0076] In embodiments, the organometallic compound may comprise at least one deuterium.

[0077] In an embodiment, the second to fourth compounds may each include at least one deuterium.

[0078] In an embodiment, the second compound may include at least one silicon.

[0079] In an embodiment, the third compound may include at least one silicon.

[0080] In the embodiment, the light emitting device may further include a second compound and a third compound in addition to the organometallic compound represented by Formula 1, wherein at least one of the second compound and the third compound may include at least one deuterium, at least one silicon, or a combination thereof.

[0081] According to the embodiment, in addition to the organometallic compound, the light-emitting device (e.g., the emission layer of the light-emitting device) may include a second compound. At least one of the organometallic compound and the second compound may include at least one deuterium. For example, in addition to the organometallic compound and the second compound, the light-emitting device (e.g., the emission layer in the light-emitting device) may further include a third compound, a fourth compound, or a combination thereof.

[0082] In an embodiment, in addition to the organometallic compound, the light-emitting device (e.g., the emission layer of the light-emitting device) may further include a third compound. At least one of the organometallic compound and the third compound may include at least one deuterium. For example, in addition to the organometallic compound and the third compound, the light-emitting device (e.g., the emission layer of the light-emitting device) may further include a second compound, a fourth compound, or a combination thereof.

[0083] In an embodiment, in addition to the organometallic compound, the light-emitting device (e.g., the emission layer of the light-emitting device) may further include a fourth compound. At least one of the organometallic compound and the fourth compound may include at least one deuterium. The fourth compound may be used to improve the color purity, luminous efficiency and service life characteristics of the light-emitting device. For example, in addition to the organometallic compound and the fourth compound, the light-emitting device (e.g., the emission layer in the light-emitting device) may further include a second compound, a third compound or a combination thereof.

[0084] In an embodiment, in addition to the organometallic compound, the light-emitting device (e.g., the emission layer of the light-emitting device) may further include a second compound and a third compound. The second compound and the third compound may form an exciplex. At least one of the organometallic compound, the second compound, and the third compound may include at least one deuterium.

[0085] In an embodiment, the emission layer of the light emitting device may include: i) an organometallic compound; and ii) the second compound, the third compound, the fourth compound, or a combination thereof, and the emission layer may be configured to emit blue light.

[0086] In an embodiment, the maximum emission wavelength of blue light can be about 430 nanometers (nm) to about 480 nm, about 430 nm to about 475 nm, about 440 nm to about 475 nm, about 450 nm to about 475 nm, about 430 nm to about 470 nm, about 440 nm to about 470 nm, about 450 nm to about 470 nm, about 430 nm to about 465 nm, about 440 nm to about 465 nm, about 450 nm to about 465 nm, about 430 nm to about 460 nm, about 440 nm to about 460 nm, or about 450 nm to about 460 nm.

[0087] In an embodiment, the second compound may include a pyridine group, a pyrimidine group, a pyrazine group, a pyridazine group, a triazine group, or a combination thereof.

[0088] In an embodiment, the following compounds may be excluded from the third compound.

[0089]

[0090] In an embodiment, the difference between the triplet energy level (eV) of the fourth compound and the singlet energy level (eV) of the fourth compound may be about 0 eV or more and about 0.5 eV or less (or about 0 eV or more and about 0.3 eV or less).

[0091] In an embodiment, the fourth compound may be a compound including at least one cyclic group including each of boron (B) and nitrogen (N) as a ring-constituting atom.

[0092] In an embodiment, the fourth compound may be a C-containing fused cyclic group comprising at least two common boron atoms (B). 8 -C 60 Polycyclic compounds.

[0093] In an embodiment, the fourth compound may comprise a fused ring wherein at least one third ring may be fused to at least one fourth ring,

[0094] The third ring may be a cyclopentane group, a cyclohexane group, a cycloheptane group, a cyclooctane group, a cyclopentene group, a cyclohexene group, a cycloheptene group, a cyclooctene group, an adamantane group, a norbornene group, a norbornane group, a bicyclo[1.1.1]pentane group, a bicyclo[2.1.1]hexane group, a bicyclo[2.2.2]octane group, a phenyl group, a pyridine group, a pyrimidine group, a pyridazine group, a pyrazine group or a triazine group, and

[0095] The fourth ring may be a 1,2-azaborinyl group, a 1,3-azaborinyl group, a 1,4-azaborinyl group, a 1,2-dihydro-1,2-azaborinyl group, a 1,4-oxaborinyl group, a 1,4-thiaborinyl group, or a 1,4-dihydroborinyl group.

[0096] In an embodiment, the third compound may not include (eg, may exclude) the compound represented by Formula 3-1 described in the present specification.

[0097] In an embodiment, the second compound may include a compound represented by Formula 2:

[0098] Formula 2

[0099]

[0100] In formula 2,

[0101] L 51 To L 53 may be independently a single bond, unsubstituted or substituted with at least one R 10a Substituted divalent C 3 -C 60A carbocyclic group, either unsubstituted or substituted with at least one R 10a Substituted divalent C 1 -C 60 Heterocyclic groups,

[0102] b51 to b53 may each independently be an integer from 1 to 5,

[0103] X 54 is N or C (R 54 ), X 55 is N or C (R 55 ), X 56 is N or C (R 56 ), and X 54 To X 56 At least one of them is N,

[0104] R 51 To R 56 and R 10a Respectively the same as described in this specification.

[0105] In one or more than one embodiments, the third compound may include a compound represented by Formula 3-1, a compound represented by Formula 3-2, a compound represented by Formula 3-3, a compound represented by Formula 3-4, a compound represented by Formula 3-5, or a combination thereof:

[0106] Formula 3-1

[0107]

[0108] Formula 3-2

[0109]

[0110] Formula 3-3

[0111]

[0112] Formula 3-4

[0113]

[0114] Formula 3-5

[0115]

[0116] Among them, in Formula 3-1 to Formula 3-5,

[0117] Cyclo 71 To Ring CY 74 can be independently π-electron-rich C 3 -C 60 a cyclic group or a pyridine group,

[0118] X 82 Can be single bond, O, S, N[(L 82 ) b82 -R 82 ]、C(R 82a )(R 82b ) or Si(R 82a )(R 82b ),

[0119] X 83 Can be single bond, O, S, N[(L 83 ) b83 -R 83 ]、C(R 83a )(R 83b ) or Si(R 83a )(R 83b ),

[0120] X 84 Can be O, S, N[(L 84 ) b84 -R 84 ]、C(R 84a )(R 84b ) or Si(R 84a )(R 84b ), X 85 Can be C or Si,

[0121] L 81 To L 85 can be independently a single bond, *-C(Q 4 )(Q 5 )-*'、*-Si(Q 4 )(Q 5 )-*', unsubstituted or replaced by at least one R 10a Substituted divalent π-electron-rich C 3 -C 60 Cyclic groups, either unsubstituted or substituted with at least one R 10a A substituted pyridinylene group wherein Q 4 and Q 5 Each can be referred to by referring to the Q 1 To understand the description, * and *' are each the binding sites with the adjacent atoms,

[0122] b81 to b85 may each independently be an integer from 1 to 5,

[0123] R 71 To R 74 , R 81 To R 85 , R 82a , R 82b , R83a , R 83b , R 84a and R 84b The same as described in this manual,

[0124] a71 to a74 may each independently be an integer from 0 to 20, and

[0125] R 10a Can be the same as described herein.

[0126] In some embodiments, the fourth compound can be a compound represented by Formula 502, a compound represented by Formula 503, or a combination thereof:

[0127] Formula 502

[0128]

[0129] Formula 503

[0130]

[0131] Among them, in equation 502 and equation 503,

[0132] Ring A 501 To Ring A 504 Can be C independently 3 -C 60 Carbocyclic group or C 1 -C 60 Heterocyclic groups,

[0133] Y 505 Can be O, S, N (R 505 )、B(R 505 )、C(R 505a )(R 505b ) or Si(R 505a )(R 505b ),

[0134] Y 506 Can be O, S, N (R 506 )、B(R 506 )、C(R 506a )(R 506b ) or Si(R 506a )(R 506b ),

[0135] Y 507 Can be O, S, N (R 507 )、B(R 507 )、C(R 507a )(R 507b ) or Si(R 507a )(R507b ),

[0136] Y 508 Can be O, S, N (R 508 )、B(R 508 )、C(R 508a )(R 508b ) or Si(R 508a )(R 508b ),

[0137] Y 51 and Y 52 may be each independently B, P(=O) or S(=O),

[0138] R 500a , R 500b , R 501 To R 508 , R 505a , R 505b , R 506a , R 506b , R 507a , R 507b , R 508a and R 508b are the same as described in this specification, and

[0139] a501 to a504 may each independently be an integer of 0 to 20.

[0140] In the embodiment, the light emitting device may satisfy at least one of conditions 1 to 4:

[0141] Condition 1

[0142] The minimum or lowest unoccupied molecular orbital (LUMO) energy level (eV) of the third compound > the LUMO energy level (eV) of the organometallic compound

[0143] Condition 2

[0144] LUMO energy level of the organometallic compound (eV) > LUMO energy level of the second compound (eV)

[0145] Condition 3

[0146] The highest occupied molecular orbital (HOMO) energy level (eV) of the organometallic compound is greater than the HOMO energy level (eV) of the third compound.

[0147] Condition 4

[0148] HOMO energy level of the third compound (eV)>HOMO energy level of the second compound (eV)

[0149] Each of the HOMO energy level and the LUMO energy level of each of the organometallic compound, the second compound, and the third compound may be a negative value, and may be measured according to an appropriate method.

[0150] In an embodiment, the absolute value of the difference between the LUMO energy level of the organic metal compound and the LUMO energy level of the second compound may be about 0.1 eV or more and about 1.0 eV or less, the absolute value of the difference between the LUMO energy level of the organic metal compound and the LUMO energy level of the third compound may be about 0.1 eV or more and about 1.0 eV or less, the absolute value of the difference between the HOMO energy level of the organic metal compound and the HOMO energy level of the second compound may be about 1.25 eV or less (e.g., about 1.25 eV or less and about 0.2 eV or more), and the absolute value of the difference between the HOMO energy level of the organic metal compound and the HOMO energy level of the third compound may be about 1.25 eV or less (e.g., about 1.25 eV or less and about 0.2 eV or more).

[0151] When the relationship between the LUMO energy level and the HOMO energy level satisfies the conditions as described above, a balance between holes and electrons injected into the emission layer can be achieved.

[0152] The light emitting device may have the structure of the first embodiment or the second embodiment.

[0153] First embodiment

[0154] According to a first embodiment, the organometallic compound may be included in an emission layer in an intermediate layer of a light-emitting device, wherein the emission layer may further include a host, the organometallic compound may be different from the host, and the emission layer may be configured to emit phosphorescence or fluorescence emitted from the organometallic compound. For example, according to a first embodiment, the organometallic compound may be a dopant or an emitter. In an embodiment, the organometallic compound may be a phosphorescent dopant or a phosphorescent emitter.

[0155] The phosphorescence or fluorescence emitted from the organometallic compound may be blue light.

[0156] The emission layer may further include an auxiliary dopant. The auxiliary dopant may improve the light emission efficiency of the organic metal compound by efficiently transferring energy to the organic metal compound as a dopant or an emitter.

[0157] The auxiliary dopant may be different from the organometallic compound and the host.

[0158] In one or more embodiments, the auxiliary dopant may be a delayed fluorescent compound.

[0159] In some embodiments, the auxiliary dopant may be a compound including at least one cyclic group including boron (B) and nitrogen (N) as ring-forming atoms.

[0160] Second embodiment

[0161] According to a second embodiment, an organic metal compound may be included in an emission layer in an intermediate layer of a light-emitting device, wherein the emission layer may further include a host and a dopant, the organic metal compound, the host and the dopant may be different from each other, and the emission layer may be configured to emit phosphorescence or fluorescence (e.g., delayed fluorescence) from the dopant.

[0162] In an embodiment, the organometallic compound in the second embodiment may be used as an auxiliary dopant that transfers energy to a dopant (or emitter) instead of being used as a dopant.

[0163] In an embodiment, the organometallic compound in the second embodiment may be used as an emitter and as an auxiliary dopant that transfers energy to the dopant (or emitter).

[0164] For example, the phosphorescence or fluorescence emitted by the dopant (or emitter) in the second embodiment may be blue phosphorescence or blue fluorescence (eg, blue delayed fluorescence).

[0165] The dopant (or emitter) in the second embodiment can be a phosphorescent dopant material (e.g., an organic metal compound represented by Formula 1, an organic metal compound represented by Formula 401, or a combination thereof) or any fluorescent dopant material (e.g., a compound represented by Formula 501, a compound represented by Formula 502, a compound represented by Formula 503, or a combination thereof).

[0166] In the first and second embodiments, the blue light may be blue light having a maximum emission wavelength of about 390 nm to about 500 nm, about 410 nm to about 490 nm, about 430 nm to about 480 nm, about 440 nm to about 475 nm, or about 455 nm to about 470 nm.

[0167] The auxiliary dopant in the first embodiment may include, for example, a fourth compound represented by Formula 502 or Formula 503.

[0168] The host in the first and second embodiments may be any host material (eg, a compound represented by Formula 301, a compound represented by Formula 301-1, a compound represented by Formula 301-2, or a combination thereof).

[0169] In an embodiment, the host in the first embodiment and the second embodiment may be the second compound, the third compound, or a combination thereof.

[0170] In the embodiment, the light emitting device may further include a cover layer arranged outside the first electrode and / or located outside the second electrode.

[0171] In the embodiment, the light emitting device may further include at least one of a first covering layer located outside the first electrode and a second covering layer located outside the second electrode, and the organic metal compound represented by Formula 1 may be included in at least one of the first covering layer and the second covering layer. The first covering layer and / or the second covering layer may each be the same as described herein.

[0172] In an embodiment, the light emitting device may further include:

[0173] a first covering layer disposed outside the first electrode and including an organic metal compound represented by Formula 1;

[0174] a second covering layer disposed outside the second electrode and including an organic metal compound represented by Formula 1; or

[0175] A first covering layer and a second covering layer.

[0176] The expression “(the intermediate layer and / or the covering layer) contains at least one organometallic compound represented by Formula 1” as used herein may be interpreted to mean “(the intermediate layer and / or the covering layer) may contain one organometallic compound of Formula 1 or two different organometallic compounds of Formula 1”.

[0177] In an embodiment, the intermediate layer and / or the covering layer may contain only compound 1 as an organic metal compound. In this regard, compound 1 may be present in the emission layer of the light-emitting device. In one or more than one embodiments, the intermediate layer may contain compound 1 and compound 2 as organic metal compounds. In this regard, compound 1 and compound 2 may be present in substantially the same layer (e.g., at the same layer or in the same layer) (e.g., both compound 1 and compound 2 (e.g., simultaneously) may be present in the emission layer), or may be present in different layers (e.g., compound 1 may be present in the emission layer, and compound 2 may be present in the electron transport region).

[0178] The term “intermediate layer” as used herein refers to a single layer and / or a plurality of layers disposed between a first electrode and a second electrode of a light emitting device.

[0179] Another aspect of the present disclosure provides an electronic device including a light emitting device. The electronic device may further include a thin film transistor. For example, the electronic device may further include a thin film transistor, the thin film transistor including a source electrode and a drain electrode, wherein the first electrode of the light emitting device may be electrically coupled to the source electrode or the drain electrode. In an embodiment, the electronic device may further include a color filter, a color conversion layer, a touch screen layer, a polarization layer, or a combination thereof. For more details of the electronic device, reference may be made to the description provided herein.

[0180] Another aspect provides electronic equipment including a light emitting device.

[0181] For example, the electronic equipment can be one selected from a flat panel display, a curved display, a computer monitor, a medical monitor, a television, a billboard, an indoor or outdoor light and / or a signal light, a head-up display, a fully transparent display or a partially transparent display, a flexible display, a rollable display, a foldable display, a retractable display, a laser printer, a phone, a portable phone, a tablet personal computer, a tablet phone, a personal digital assistant (PDA), a wearable device, a laptop computer, a digital camera, a video camera, a viewfinder, a microdisplay, a three-dimensional (3D) display, a virtual reality display or an augmented reality display, a vehicle, a video wall with multiple displays stitched together, a theater screen or a stadium screen, a light therapy device and a sign.

[0182] According to one or more embodiments, there is provided an organometallic compound represented by Formula 1. The details regarding Formula 1 are each the same as described herein.

[0183] By referring to the synthesis examples and / or embodiments described herein, one of ordinary skill in the art can easily understand methods for synthesizing organometallic compounds.

[0184] Description of Formula 1

[0185] Formula 1

[0186]

[0187] M in Formula 1 may be platinum (Pt), palladium (Pd), copper (Cu), silver (Ag), gold (Au), rhodium (Rh), ruthenium (Ru), osmium (Os), titanium (Ti), zirconium (Zr), hafnium (Hf), europium (Eu), terbium (Tb) or thulium (Tm).

[0188] In an embodiment, M may be platinum (Pt), palladium (Pd), or gold (Au).

[0189] In an embodiment, M may be Pt.

[0190] In an embodiment, X in Formula 1 1 To X4 can each independently be C or N.

[0191] In an embodiment, X 1 It can be C.

[0192] In an embodiment, X 1 Can be C, and X 1 The bond with M may be a coordinate bond.

[0193] In an embodiment, X 1 It may be carbon (C) of a carbene moiety.

[0194] In an embodiment, X 2 and X 3 can each be C, and X 4 It can be N.

[0195] In an embodiment, i) X 1 The bond between X and M may be a coordination bond, and ii) X 2 The key between M and X 3 The bond between M and X 4 One of the bonds with M may be a coordinate bond, and the remaining two may each be a covalent bond.

[0196] In an embodiment, X 1 The bond between M and X 4 The bonds between X and M may each be coordination bonds, and X 2 The bond between M and X 3 The bonds to M may each be covalent bonds.

[0197] In an embodiment, X 1 , X 2 and X 3 can each be C, and X 4 Can be N, X 1 The bond between M and X 4 The bonds between M and each other may be coordinate bonds, and

[0198] X 2 The bond between M and X 3 The bonds to M may each be covalent bonds.

[0199] In an embodiment, ring CY in Formula 1 1 CY 2 and CY 4 Can be C independently 5 -C 30 Carbocyclic group or C 1 -C 30 Heterocyclic group.

[0200] In an embodiment, CY 1 CY 2 and CY 4 can be independently

[0201] Benzene group, naphthalene group, anthracene group, phenanthrene group, triphenylene group, pyrene group, group, a cyclopentadiene group, a furan group, a thiophene group, a silole group, an indene group, a fluorene group, an indole group, a carbazole group, a benzofuran group, a dibenzofuran group, a benzothiophene group, a dibenzothiophene group, a benzothioole group, a dibenzothioole group, an azafluorene group, an azacarbazole group, an azadibenzofuran group, an azadibenzothiophene group, an azadibenzothioole group, a pyridine group, a pyrimidine group, a pyrazine group, a pyridazine group, a triazine group, a quinoline group, an isoquinoline group, a quinoxaline group, a quinazoline group, a phenanthroline group, a pyrrole group, a pyrazole group, an imidazole group, a triazole group, an oxazole group, an isoxazole group, a thiazole group, an isothiazole group, an oxadiazole group The invention also includes but is not limited to: an azole group, a thiadiazole group, a benzopyrazole group, a benzimidazole group, a benzoxazole group, a benzothiazole group, a benzoxadiazole group, a benzothiadiazole group, a dibenzooxasilinyl group, a dibenzothiasilinyl group, a dibenzodihydroazasilinyl group, a dibenzodihydrodisilinyl group, a dibenzodihydrosilinyl group, a dibenzodioxinyl group, a dibenzooxathiainyl group, a dibenzoxazine group, a dibenzopyran group, a dibenzodithiainyl group, a dibenzothiazine group, a dibenzothiopyran group, a dibenzocyclohexadiene group, a dibenzodihydropyridine group or a dibenzodihydropyrazine group.

[0202] In an embodiment, CY 1 Can be nitrogen-containing C 1 -C 60 Heterocyclic group.

[0203] In an embodiment, CY 1 It may be an imidazole group, a triazole group, a benzimidazole group, a naphthimidazole group or an imidazopyridine group.

[0204] In an embodiment, X 1 Can be C, and

[0205] Cyclo 1 It may be an imidazole group, a triazole group, a benzimidazole group, a naphthimidazole group or an imidazopyridine group.

[0206] In an embodiment, X 1 may be a carbon (C) of a carbene moiety, and

[0207] Cyclo 1 It may be an imidazole group, a triazole group, a benzimidazole group, a naphthimidazole group or an imidazopyridine group.

[0208] In an embodiment, CY 2 It can be a phenyl group, a pyridine group, a pyrimidine group, a naphthalene group, a dibenzofuran group, a dibenzothiophene group, a carbazole group, a fluorene group, a dibenzosilole group, a naphthobenzofuran group, a naphthobenzothiophene group, a benzocarbazole group, a benzofluorene group, a naphthobenzosilole group, a dinaphthofuran group, a dinaphthothiophene group, a dibenzocarbazole group, a dibenzofluorene group, a dinaphthosilole group, an azadiphenylamine group, The present invention relates to an oxadiazine group, an oxadiazine group, an oxadiazine group, an oxadiazine group, an oxadiazine group, an oxadiazine group, an oxadiazine group, an oxadiazine group, an oxadiazine group, an oxadiazine group, an oxadiazine group, an oxadiazine group, an oxadiazine group, an oxadiazine group, an oxadiazine group, an oxadiazine group, an oxadiazine group, an oxadiazine group, an oxadiazine group, an oxadiazine group, an oxadiazine group, an oxadiazine group, an oxadiazine group, an oxadiazine group, an oxadiazine group, an oxadiazine group, an oxadiazine group, an oxadiazine group

[0209] In an embodiment, CY 4 Can be nitrogen-containing C 1 -C 60 Heterocyclic group.

[0210] In an embodiment, CY 4 It may be a pyridine group, a pyrimidine group, a pyrazine group, a pyridazine group, a triazine group, a quinoline group, an isoquinoline group, a quinoxaline group, a quinazoline group, a phenanthroline group, a pyrrole group, a pyrazole group, an imidazole group, a triazole group, a benzopyrazole group, a benzimidazole group or a benzothiazole group.

[0211] In an embodiment, T in Formula 1 1 It can be C, Si or Ge.

[0212] In an embodiment, T 1 It can be C.

[0213] In an embodiment, in Formula 1, L 1 To L 4 can each independently be a single bond, *-C(R 1a )(R 1b )-*'、*-C(R 1a )=*'、*=C(R 1a )-*'、*-C(R 1a )=C(R 1b )-*', *-C(=O)-*', *-C(=S)-*', *-C≡C-*', *-B(R 1a )-*'、*-N(R 1a)-*'、*-O-*'、*-P(R 1a )-*'、*-Al(R 1a )-*、*-Si(R 1a )(R 1b )-*'、*-P(=O)(R 1a )-*'、*-S-*'、*-S(=O)-*'、*-S(=O) 2 -*'or*-Ge(R 1a )(R 1b )-*', and * and *' can each be a binding site with an adjacent atom.

[0214] In an embodiment, R of Formula 1 1a and R 1b can be each independently hydrogen, deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Alkyl groups, unsubstituted or substituted with at least one R 10a Substituted C 2 -C 60 Alkenyl groups, unsubstituted or substituted with at least one R 10a Substituted C 2 -C 60 Alkynyl groups, unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Alkoxy groups, unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Alkylthio groups, unsubstituted or substituted with at least one R 10a Substituted C 3 -C 60 Carbocyclic group, unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Heterocyclic group, unsubstituted or substituted with at least one R 10a Substituted C 6 -C 60 Aryloxy groups, unsubstituted or substituted with at least one R 10a Substituted C 6 -C 60 Arylthio group, -C(Q 1 )(Q 2 )(Q 3 )、-Si(Q 1 )(Q 2 )(Q 3 )、-N(Q 1)(Q 2 )、-B(Q 1 )(Q 2 )、-C(=O)(Q 1 )、-S(=O) 2 (Q 1 ) or -P(=O)(Q 1 )(Q 2 ).

[0215] R 10a and Q 1 To Q 3 Each may be the same as described herein.

[0216] n1 to n4 in Formula 1 represent L 1 The number of L 4 When n1 is 2 or more, two or more L 1 can be the same as or different from each other. When n2 is 2 or greater than 2, two or more L 2 can be the same as or different from each other. When n3 is 2 or greater than 2, two or more L 3 may be the same as or different from each other, and when n4 is 2 or greater, two or more L 4 May be the same as or different from each other.

[0217] In an embodiment, L 1 and L 3 Each may be a single bond.

[0218] In an embodiment, L 2 It can be *-O-*' or *-S-*', and n2 can be 1.

[0219] In an embodiment, L 1 and L 3 Each of them can be a single bond, L 2 It can be *-O-*' or or*-S-*', and n2 can be 1.

[0220] In an embodiment, L 4 Can be a single bond, *-C(R 1a )(R 1b )-*'、*-O-*'、*-Si(R 1a )(R 1b )-*' or *-S-*', and n4 can be 1.

[0221] In an embodiment, L 4 Can be a single bond, *-C(R 1a )(R 1b)-*' or *-Si(R 1a )(R 1b )-*', and n4 may be 1. * and *' are each a binding site with an adjacent atom.

[0222] In one or more than one embodiment, R 1a To R 1b Can be independently:

[0223] Hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, C 1 -C 20 Alkyl group or C 1 -C 20 Alkoxy groups;

[0224] Each was deuterated, -F, -Cl, -Br, -I, -CD 3 、-CD 2 H.-CDH 2 , -CF 3 , -CF 2 H, -CFH 2 , hydroxyl group, cyano group, nitro group, C 1 -C 10 C substituted with an alkyl group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, an adamantyl group, a norbornyl group, a norbornyl group, a cyclopentenyl group, a cyclohexenyl group, a cycloheptenyl group, a phenyl group, a biphenyl group, a naphthyl group, a pyridyl group, a pyrimidinyl group, or a combination thereof 1 -C 20 Alkyl group or C 1 -C 20 Alkoxy groups;

[0225] Each is unsubstituted or substituted with deuterium, -F, -Cl, -Br, -I, -CD 3 、-CD 2 H.-CDH 2 , -CF 3 , -CF 2 H, -CFH 2 , hydroxyl group, cyano group, nitro group, C 1 -C 20 Alkyl group, C 1 -C 20 an alkoxy group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, an adamantyl group, a norbornyl group, a norbornyl group, a cyclopentenyl group, a cyclohexenyl group, a cycloheptenyl group, a phenyl group, a biphenyl group, (C 1 -C 10alkyl)phenyl group, naphthyl group, fluorenyl group, phenanthryl group, anthracenyl group, fluoranthenyl group, triphenylenyl group, pyrenyl group, a pyrrolyl group, a thienyl group, a furanyl group, an imidazolyl group, a pyrazolyl group, a thiazolyl group, an isothiazolyl group, an oxazolyl group, an isoxazolyl group, a pyridyl group, a pyrazinyl group, a pyrimidinyl group, a pyridazinyl group, an isoindolyl group, an indolyl group, an indazolyl group, a purinyl group, a quinolyl group, an isoquinolyl group, a benzoquinolyl group, a quinoxalinyl group, a quinazolinyl group, a cinnolinyl group, group, a carbazolyl group, a phenanthroline group, a benzimidazolyl group, a benzofuranyl group, a benzothiophenyl group, a benzisothiazolyl group, a benzoxazolyl group, a benzisoxazolyl group, a triazolyl group, a tetrazolyl group, an oxadiazolyl group, a triazine group, a dibenzofuranyl group, a dibenzothiophenyl group, a benzocarbazolyl group, a dibenzocarbazolyl group, an imidazopyridyl group, an imidazopyrimidinyl group, -O(Q 31 )、-S(Q 31 )、-Si(Q 31 )(Q 32 )(Q 33 )、-N(Q 31 )(Q 32 )、-B(Q 31 )(Q 32 )、-P(Q 31 )(Q 32 )、-C(=O)(Q 31 )、-S(=O) 2 (Q 31 )、-P(=O)(Q 31 )(Q 32 ) or a combination thereof substituted by a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, an adamantyl group, a norbornyl group, a norbornyl group, a cyclopentenyl group, a cyclohexenyl group, a cycloheptenyl group, a phenyl group, a biphenyl group, (C 1 -C 10 alkyl)phenyl group, naphthyl group, fluorenyl group, phenanthryl group, anthracenyl group, fluoranthenyl group, triphenylenyl group, pyrenyl group, a pyrrolyl group, a thienyl group, a furanyl group, an imidazolyl group, a pyrazolyl group, a thiazolyl group, an isothiazolyl group, an oxazolyl group, an isoxazolyl group, a pyridyl group, a pyrazinyl group, a pyrimidinyl group, a pyridazinyl group, an isoindolyl group, an indolyl group, an indazolyl group, a purinyl group, a quinolyl group, an isoquinolyl group, a benzoquinolyl group, a quinoxalinyl group, a quinazolinyl group, a cinnolinyl group, a carbazolyl group, a phenanthrolinyl group, a benzimidazolyl group , a benzofuranyl group, a benzothienyl group, a benzothiazolyl group, a benzoxazolyl group, a benzisoxazolyl group, a triazolyl group, a tetrazolyl group, an oxadiazolyl group, a triazinyl group, a dibenzofuranyl group, a dibenzothienyl group, a benzocarbazolyl group, a dibenzocarbazolyl group, an imidazopyridyl group, an imidazopyrimidinyl group, an azacarbazolyl group, an azadibenzofuranyl group, an azadibenzothienyl group, an azafluorenyl group, or an azadibenzosilyl group; or

[0226] -C(Q 1 )(Q 2 )(Q 3 )、-Si(Q 1 )(Q 2 )(Q 3 )、-N(Q 1 )(Q 2 )、-B(Q 1 )(Q 2 )、-C(=O)(Q 1 )、-S(=O) 2 (Q 1 ) or -P(=O)(Q 1 )(Q 2 ),

[0227] Where Q 1 To Q 3 and Q 31 To Q 33 can each independently be hydrogen; deuterium; -F; -Cl; -Br; -I; a hydroxyl group; a cyano group; a nitro group; C 1 -C 60 Alkyl group; C 2 -C 60 Alkenyl group; C 2 -C 60 Alkynyl group; C 1 -C 60 alkoxy groups; or each unsubstituted or substituted with deuterium, -F, cyano groups, C 1 -C 60 Alkyl group, C 1 -C 60C substituted with an alkoxy group, a phenyl group, a biphenyl group or a combination thereof 3 -C 60 Carbocyclic group or C 1 -C 60 Heterocyclic group.

[0228] R in Formula 1 1 , R 2 , R 31 To R 35 and R 4 can be each independently hydrogen, deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Alkyl groups, unsubstituted or substituted with at least one R 10a Substituted C 2 -C 60 Alkenyl groups, unsubstituted or substituted with at least one R 10a Substituted C 2 -C 60 Alkynyl groups, unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Alkoxy groups, unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Alkylthio groups, unsubstituted or substituted with at least one R 10a Substituted C 3 -C 60 Carbocyclic group, unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Heterocyclic group, unsubstituted or substituted with at least one R 10a Substituted C 6 -C 60 Aryloxy groups, unsubstituted or substituted with at least one R 10a Substituted C 6 -C 60 Arylthio group, -C(Q 1 )(Q 2 )(Q 3 )、-Si(Q 1 )(Q 2 )(Q 3 )、-N(Q 1 )(Q 2 )、-B(Q 1 )(Q 2 )、-C(=O)(Q 1 )、-S(=O) 2 (Q1 ) or -P(=O)(Q 1 )(Q 2 ).

[0229] R 10a and Q 1 To Q 3 Each may be the same as described herein.

[0230] a1, a2 and a4 in Formula 1 represent R 1 The number of 2 The number and R 4 and may be independently an integer from 1 to 20. When a1 is 2 or greater, two or more R 1 can be the same or different from each other. When a2 is 2 or greater than 2, two or more R 2 may be the same or different from each other, and when a4 is 2 or greater, two or more R 4 Can be the same or different from each other.

[0231] a31 and a32 in Formula 1 represent R 31 The number and R 32 The number of R 31 can be the same or different from each other, and when a32 is 2, the two R 32 May be the same as or different from each other.

[0232] a33 to a35 in Formula 1 represent R 33 The number of R 35 The number of R can be independently an integer from 1 to 4. When a33 is 2 or greater, two or more R 33 can be the same or different from each other. When a34 is 2 or greater than 2, two or more R 34 may be the same as or different from each other, and when a35 is 2 or more, two or more R35 may be the same as or different from each other.

[0233] In the embodiment, a1 R 1 、a2R 2 、a31 R 31 、a32 R 32 、a33 R 33 、a34 R 34 、a35R 35 、a4R 4 , R 1a and R 1bTwo or more adjacent groups in the formula (R) may optionally be combined with one another to form an unsubstituted or substituted group. 10a Substituted C 3 -C 60 The carbocyclic group is either unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Heterocyclic group.

[0234] In an embodiment, R 1 , R 2 , R 31 To R 35 and R 4 Can be independently:

[0235] Hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, C 1 -C 20 Alkyl group or C 1 -C 20 Alkoxy groups;

[0236] Each was deuterated, -F, -Cl, -Br, -I, -CD 3 、-CD 2 H.-CDH 2 , -CF 3 , -CF 2 H, -CFH 2 , hydroxyl group, cyano group, nitro group, C 1 -C 10 C substituted with an alkyl group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, an adamantyl group, a norbornyl group, a norbornyl group, a cyclopentenyl group, a cyclohexenyl group, a cycloheptenyl group, a phenyl group, a biphenyl group, a naphthyl group, a pyridyl group, a pyrimidinyl group, or a combination thereof 1 -C 20 Alkyl group or C 1 -C 20 Alkoxy groups;

[0237] Each is unsubstituted or substituted with deuterium, -F, -Cl, -Br, -I, -CD 3 、-CD 2 H.-CDH 2 , -CF 3 , -CF 2 H, -CFH 2 , hydroxyl group, cyano group, nitro group, C 1 -C 20 Alkyl group, C 1 -C 20an alkoxy group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, an adamantyl group, a norbornyl group, a norbornyl group, a cyclopentenyl group, a cyclohexenyl group, a cycloheptenyl group, a phenyl group, a biphenyl group, (C 1 -C 10 alkyl)phenyl group, naphthyl group, fluorenyl group, phenanthryl group, anthracenyl group, fluoranthenyl group, triphenylenyl group, pyrenyl group, a pyrrolyl group, a thienyl group, a furanyl group, an imidazolyl group, a pyrazolyl group, a thiazolyl group, an isothiazolyl group, an oxazolyl group, an isoxazolyl group, a pyridyl group, a pyrazinyl group, a pyrimidinyl group, a pyridazinyl group, an isoindolyl group, an indolyl group, an indazolyl group, a purinyl group, a quinolyl group, an isoquinolyl group, a benzoquinolyl group, a quinoxalinyl group, a quinazolinyl group, a cinnolinyl group, group, a carbazolyl group, a phenanthroline group, a benzimidazolyl group, a benzofuranyl group, a benzothiophenyl group, a benzisothiazolyl group, a benzoxazolyl group, a benzisoxazolyl group, a triazolyl group, a tetrazolyl group, an oxadiazolyl group, a triazine group, a dibenzofuranyl group, a dibenzothiophenyl group, a benzocarbazolyl group, a dibenzocarbazolyl group, an imidazopyridyl group, an imidazopyrimidinyl group, -O(Q 31 )、-S(Q 31 )、-Si(Q 31 )(Q 32 )(Q 33 )、-N(Q 31 )(Q 32 )、-B(Q 31 )(Q 32 )、-P(Q 31 )(Q 32 )、-C(=O)(Q 31 )、-S(=O) 2 (Q 31 )、-P(=O)(Q 31 )(Q 32 ) or a combination thereof substituted by a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, an adamantyl group, a norbornyl group, a norbornyl group, a cyclopentenyl group, a cyclohexenyl group, a cycloheptenyl group, a phenyl group, a biphenyl group, (C 1 -C 10 alkyl)phenyl group, naphthyl group, fluorenyl group, phenanthryl group, anthracenyl group, fluoranthenyl group, triphenylenyl group, pyrenyl group, a pyrrolyl group, a thienyl group, a furanyl group, an imidazolyl group, a pyrazolyl group, a thiazolyl group, an isothiazolyl group, an oxazolyl group, an isoxazolyl group, a pyridyl group, a pyrazinyl group, a pyrimidinyl group, a pyridazinyl group, an isoindolyl group, an indolyl group, an indazolyl group, a purinyl group, a quinolyl group, an isoquinolyl group, a benzoquinolyl group, a quinoxalinyl group, a quinazolinyl group, a cinnolinyl group, a carbazolyl group, a phenanthrolinyl group, a benzimidazolyl group , a benzofuranyl group, a benzothienyl group, a benzothiazolyl group, a benzoxazolyl group, a benzisoxazolyl group, a triazolyl group, a tetrazolyl group, an oxadiazolyl group, a triazinyl group, a dibenzofuranyl group, a dibenzothienyl group, a benzocarbazolyl group, a dibenzocarbazolyl group, an imidazopyridyl group, an imidazopyrimidinyl group, an azacarbazolyl group, an azadibenzofuranyl group, an azadibenzothienyl group, an azafluorenyl group, or an azadibenzosilyl group; or

[0238] -C(Q 1 )(Q 2 )(Q 3 )、-Si(Q 1 )(Q 2 )(Q 3 )、-N(Q 1 )(Q 2 )、-B(Q 1 )(Q 2 )、-C(=O)(Q 1 )、-S(=O) 2 (Q 1 ) or -P(=O)(Q 1 )(Q 2 ),

[0239] Where Q 1 To Q 3 and Q 31 To Q 33 can each independently be: hydrogen; deuterium; -F; -Cl; -Br; -I; a hydroxyl group; a cyano group; a nitro group; C 1 -C 60 Alkyl group; C 2 -C 60 Alkenyl group; C 2 -C 60 Alkynyl group; C 1 -C 60 alkoxy groups; or each unsubstituted or substituted with deuterium, -F, cyano groups, C 1 -C 60 Alkyl group, C 1 -C 60C substituted with an alkoxy group, a phenyl group, a biphenyl group or a combination thereof 3 -C 60 Carbocyclic group or C 1 -C 60 Heterocyclic group.

[0240] In an embodiment, R 1 , R 2 , R 31 To R 35 and R 4 Can be independently:

[0241] Hydrogen, deuterium, -F, C 1 -C 20 Alkyl group or C 1 -C 20 Alkoxy groups;

[0242] Each was deuterated, -F, -CD 3 、-CD 2 H.-CDH 2 , -CF 3 , -CF 2 H, -CFH 2 , C 1 -C 10 C substituted with an alkyl group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclopentenyl group, a cyclohexenyl group, a cycloheptenyl group, a phenyl group, a biphenyl group, a naphthyl group, a pyridyl group, a pyrimidinyl group, or a combination thereof 1 -C 20 Alkyl group or C 1 -C 20 Alkoxy groups;

[0243] Each unsubstituted or substituted with deuterium, -F, -CD 3 、-CD 2 H.-CDH 2 , -CF 3 , -CF 2 H, -CFH 2 , C 1 -C 20 Alkyl group, C 1 -C 20 an alkoxy group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclopentenyl group, a cyclohexenyl group, a cycloheptenyl group, a phenyl group, a biphenyl group, (C 1 -C 10alkyl)phenyl group, naphthyl group, fluorenyl group, phenanthryl group, anthracenyl group, pyridyl group, pyrazinyl group, pyrimidinyl group, pyridazinyl group, isoindolyl group, indolyl group, indazolyl group, purinyl group, quinolyl group, isoquinolyl group, benzoquinolyl group, quinoxalinyl group, quinazolinyl group, cinnolinyl group, carbazolyl group, benzimidazolyl group, benzofuranyl group, benzothiophenyl group, dibenzofuranyl group, dibenzothiophenyl group, -O(Q 31 )、-S(Q 31 )、-Si(Q 31 )(Q 32 )(Q 33 )、-N(Q 31 )(Q 32 ) or a combination thereof substituted cyclopentyl group, cyclohexyl group, cycloheptyl group, cyclopentenyl group, cyclohexenyl group, cycloheptenyl group, phenyl group, biphenyl group, (C 1 -C 10 alkyl)phenyl group, naphthyl group, fluorenyl group, phenanthryl group, anthracenyl group, pyridyl group, pyrazinyl group, pyrimidinyl group, pyridazinyl group, isoindolyl group, indolyl group, indazolyl group, purinyl group, quinolyl group, isoquinolyl group, benzoquinolyl group, quinoxalinyl group, quinazoline group, cinnolinyl group, carbazolyl group, benzimidazolyl group, benzofuranyl group, benzothiophenyl group, dibenzofuranyl group, dibenzothiophenyl group; or

[0244] -C(Q 1 )(Q 2 )(Q 3 )、-Si(Q 1 )(Q 2 )(Q 3 )、-N(Q 1 )(Q 2 ),

[0245] Where Q 1 To Q 3 and Q 31 To Q 33 can be independently: hydrogen; deuterium; -F; C 1 -C 60 Alkyl group; C 2 -C 60 Alkenyl group; C 2 -C 60 Alkynyl group; C 1 -C 60 alkoxy groups; each of which is unsubstituted or substituted with deuterium, -F, C 1 -C 60 Alkyl group, C1 -C 60 C substituted with an alkoxy group, a phenyl group, a biphenyl group or a combination thereof 3 -C 60 Carbocyclic group or C 1 -C 60 Heterocyclic group.

[0246] In an embodiment, R 1 , R 2 , R 31 To R 35 and R 4 Can be independently:

[0247] Hydrogen, deuterium or C 1 -C 20 Alkyl groups;

[0248] Deuterated, -CD 3 、-CD 2 H.-CDH 2 , C 1 -C 10 C substituted with an alkyl group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclopentenyl group, a cyclohexenyl group, a cycloheptenyl group, a phenyl group, a biphenyl group, a naphthyl group, or a combination thereof 1 -C 20 Alkyl groups;

[0249] Each unsubstituted or deuterated, -CD 3 、-CD 2 H.-CDH 2 , C 1 -C 20 alkyl group, cyclopentyl group, cyclohexyl group, cycloheptyl group, cyclopentenyl group, cyclohexenyl group, cycloheptenyl group, phenyl group, biphenyl group, (C 1 -C 10 alkyl)phenyl group, naphthyl group, -Si(Q 31 )(Q 32 )(Q 33 ) or a combination thereof substituted cyclopentyl group, cyclohexyl group, cycloheptyl group, cyclopentenyl group, cyclohexenyl group, cycloheptenyl group, phenyl group, biphenyl group, (C 1 -C 10 alkyl)phenyl group or naphthyl group, or

[0250] -C(Q 1 )(Q 2 )(Q 3 ) or -Si(Q 1 )(Q 2 )(Q 3),

[0251] Where Q 1 To Q 3 and Q 31 To Q 33 can be independently: hydrogen; deuterium; C 1 -C 60 Alkyl group; C 2 -C 60 Alkenyl group; C 2 -C 60 Alkynyl group; either unsubstituted or substituted with deuterium, C 1 -C 60 C substituted with an alkyl group, a phenyl group, a biphenyl group or a combination thereof 3 -C 60 Carbocyclic group.

[0252] In an embodiment, the formula 1 is The group represented by may be a group represented by one of CY1(1) to CY1(11):

[0253]

[0254]

[0255] Among them, in formula CY1(1) to formula CY1(11),

[0256] R 11 To R 17 Each and About R 1 Same as described,

[0257] * represents the binding site with M in Formula 1, and

[0258] *' represents the L in formula 1 1 binding site.

[0259] In an embodiment, the The group represented may be a group represented by one of the formulas CY2(1) to CY2(13) (for example, a group selected from the formulas CY2(1) to CY2(13)):

[0260]

[0261] Among them, in formula CY2(1) to formula CY2(13),

[0262] T 21 Yes B(Y 21 )、C(Y 21 )(Y 22 )、N(Y 21), O, S or Si(Y 21 )(Y 22 ), T 22 is C(Y 21 ), N or Si(Y 21 ),

[0263] R 21 To R 26 , Y 21 and Y 22 Each and About R 2 Same as described,

[0264] * represents the binding site with M in Formula 1,

[0265] *' represents the L in formula 1 1 binding sites, and

[0266] *" indicates the same as L in Formula 1 2 binding site.

[0267] In an embodiment, the The group represented by may be a group represented by one of CY4(1) to CY4(29):

[0268]

[0269]

[0270]

[0271] Among them, in formula CY4(1) to formula CY4(29),

[0272] R 41 To R 47 Each and About R 4 Same as described,

[0273] * represents the binding site with M in Formula 1, and

[0274] *"' indicates that L in formula 1 3 binding site.

[0275] In an embodiment, the organic metal compound represented by Formula 1 may be a group represented by Formula 1-1:

[0276] Formula 1-1

[0277]

[0278] Among them, in formula 1-1,

[0279] M and T 1Each is the same as described herein,

[0280] L 2 is *-O-*' or *-S-*',

[0281] L 4 is a single bond, *-C(R 1a )(R 1b )-*'、*-O-*'、*-Si(R 1a )(R 1b )-*' or *-S-*'

[0282] X 11 is C(R 11 ) or N, X 12 is C(R 12 ) or N, X 13 is C(R 13 ) or N, X 14 is C(R 14 ) or N, * and *' are each a binding site with an adjacent atom, and R 1a and R 1b Each is the same as described herein,

[0283] X 21 It can be C(R 21 ) or N, X 22 It can be C(R 22 ) or N, and X 23 It can be C(R 23 ) or N,

[0284] X 41 It can be C(R 41 ) or N, X 42 It can be C(R 42 ) or N, X 43 It can be C(R 43 ) or N, and X 44 It can be C(R 44 ) or N,

[0285] R 11 To R 15 Each and About R 1 Same as described,

[0286] R 21 To R 23 Each and About R 2 Same as described,

[0287] R 311 and R 312 Each and About R 31 Same as described,

[0288] R 321 and R 322 Each and About R 32 Same as described,

[0289] R 331 To R 334 Each and About R 33 Same as described,

[0290] R 341 To R 344 Each and About R 34 Same as described,

[0291] R 351 To R 354 Each and About R 35 Same as described, and

[0292] R 41 To R 44 Each and About R 4 Same as described.

[0293] Unless otherwise defined, R in Formula 1 10a It can be:

[0294] deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group or a nitro group;

[0295] Each is unsubstituted or substituted with deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, C 3 -C 60 Carbocyclic group, C 1 -C 60 Heterocyclic group, C 6 -C 60 Aryloxy group, C 6 -C 60 Arylthio group, -Si(Q 11 )(Q 12 )(Q 13 )、-N(Q 11 )(Q 12 )、-B(Q 11 )(Q 12 )、-C(=O)(Q 11 )、-S(=O) 2 (Q 11 )、-P(=O)(Q 11 )(Q 12 ) or a combination thereof substituted C 1 -C 60 Alkyl group, C 2 -C 60 Alkenyl group, C2 -C 60 Alkynyl group or C 1 -C 60 Alkoxy groups;

[0296] Each is unsubstituted or substituted with deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, C 1 -C 60 Alkyl group, C 2 -C 60 Alkenyl group, C 2 -C 60 Alkynyl group, C 1 -C 60 Alkoxy groups, C 3 -C 60 Carbocyclic group, C 1 -C 60 Heterocyclic group, C 6 -C 60 Aryloxy group, C 6 -C 60 Arylthio group, -Si(Q 21 )(Q 22 )(Q 23 )、-N(Q 21 )(Q 22 )、-B(Q 21 )(Q 22 )、-C(=O)(Q 21 )、-S(=O) 2 (Q 21 )、-P(=O)(Q 21 )(Q 22 ) or a combination thereof substituted C 3 -C 60 Carbocyclic group, C 1 -C 60 Heterocyclic group, C 6 -C 60 Aryloxy group or C 6 -C 60 an arylthio group; or

[0297] -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 ).

[0298] Unless otherwise defined, Q in Formula 1 1 To Q 3 , Q 11 To Q 13 , Q 21 To Q 23 and Q 31 To Q 33 can each independently be: hydrogen; deuterium; -F; -Cl; -Br; -I; a hydroxyl group; a cyano group; a nitro group; C 1 -C 60 Alkyl group; C 2 -C 60 Alkenyl group; C 2 -C 60 Alkynyl group; C 1 -C 60 alkoxy groups; or each unsubstituted or substituted with deuterium, -F, cyano groups, C 1 -C 60 Alkyl group, C 1 -C 60 C substituted with an alkoxy group, a phenyl group, a biphenyl group or a combination thereof 3 -C 60 Carbocyclic group or C 1 -C 60 Heterocyclic group.

[0299] The organometallic compound represented by Formula 1 has an expanded structure due to the condensation of the fluorene part containing the spiro structure into the carbazole part in the tetracoordinated organometallic compound. Therefore, the intramolecular vibration is suppressed or reduced, and thus the photoluminescence quantum efficiency (PLQY) can be improved. In some embodiments, the organometallic compound represented by Formula 1 can increase Kr, which is a rate constant associated with the emission of excitons in an organic light-emitting device (e.g., an emission layer of an organic light-emitting device), thereby increasing the total luminous efficiency of the organic light-emitting device. Therefore, by using the organometallic compound represented by Formula 1, an organic light-emitting device with improved luminous efficiency and reduced driving voltage can be obtained.

[0300] Other descriptions

[0301] Formula 2

[0302]

[0303] L in Formula 2 51 To L 53 may be independently a single bond, unsubstituted or substituted with at least one R 10a Substituted divalent C 3 -C60 The carbocyclic group is either unsubstituted or substituted with at least one R 10a Substituted divalent C 1 -C 60 Heterocyclic groups,

[0304] b51 to b53 in Formula 2 represent L 51 To L 53 When b51 is 2 or more, two or more L 51 can be the same or different from each other. When b52 is 2 or greater than 2, two or more L 52 may be the same as or different from each other, and when b53 is 2 or greater, two or more L 53 In an embodiment, b51 to b53 may each independently be 1 or 2.

[0305] L in Formula 2 51 To L 53 Can be independently:

[0306] a single key; or

[0307] Each is unsubstituted or substituted with deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, C 1 -C 20 Alkyl group, C 1 -C 20 an alkoxy group, a phenyl group, a naphthyl group, a pyridyl group, a pyrimidyl group, a triazine group, a fluorenyl group, a dimethylfluorenyl group, a diphenylfluorenyl group, a carbazolyl group, a phenylcarbazolyl group, a dibenzofuranyl group, a dibenzothienyl group, a dibenzosilyl group, a dimethyldibenzosilyl group, a diphenyldibenzosilyl group, an -O(Q 31 )、-S(Q 31 )、-Si(Q 31 )(Q 32 )(Q 33 )、-N(Q 31 )(Q 32 )、-B(Q 31 )(Q 32 )、-P(Q 31 )(Q 32 )、-C(=O)(Q 31 )、-S(=O) 2 (Q 31 )、-P(=O)(Q 31 )(Q 32 ) or a combination thereof substituted with a phenyl group, a naphthalene group, an anthracene group, a phenanthrene group, a triphenylene group, a pyrene group, group, a cyclopentadiene group, a furan group, a thiophene group, a silole group, an indene group, a fluorene group, an indole group, a carbazole group, a benzofuran group, a dibenzofuran group, a benzothiophene group, a dibenzothiophene group, a benzosilole group, a dibenzosilole group, an azafluorene group, an azacarbazole group, an azadibenzofuran group, an azadibenzothiophene group, an azadibenzosilole group, a pyridine group, a pyrimidine group, a pyrazine group, a pyridazine group, a triazine group, a quinoline group, an isoquinoline group, a quinoxaline group, a quinazoline group, a phenanthroline group, a pyrrole group, a pyrazole group, an imidazole group, a triazole group, an oxazole group, an isoxazole group, a thiazole group, an isothiazole group, an oxadiazolyl group a divalent group selected from the group consisting of a thiadiazole group, a benzopyrazole group, a benzimidazole group, a benzoxazole group, a benzothiazole group, a benzoxadiazole group, a benzothiadiazole group, a dibenzooxasilinyl group, a dibenzothiasilinyl group, a dibenzodihydroazasilinyl group, a dibenzodihydrodisilinyl group, a dibenzodioxasilinyl group, a dibenzoxathiasilinyl group, a dibenzoxazine group, a dibenzopyranyl group, a dibenzodithiainyl group, a dibenzothiazine group, a dibenzothiopyranyl group, a dibenzocyclohexadiene group, a dibenzodihydropyridine group or a dibenzodihydropyrazine group,

[0308] Q 31 To Q 33 can be independently hydrogen, deuterium, C 1 -C 20 Alkyl group, C 1 -C 20 an alkoxy group, a phenyl group, a biphenyl group, a terphenyl group, a pyridyl group, a pyrimidyl group, a pyridazinyl group, a pyrazinyl group or a triazinyl group.

[0309] In an embodiment, in Formula 2, L 51 With R 51 The key between 52 With R 52 The key between 53 With R 53 The bond between two or more L 51 The bond between two or more L 52 The bond between two or more L 53 The bond between 51 With X 54 and X 55 The bonds between the carbons, L in Formula 2 52 With X 54 and X 56 The bonds between the carbons, and L in Formula 253 With X 55 and X 56 The bonds between the carbon atoms in the carbon atoms may each be a "carbon-carbon single bond".

[0310] In formula 2, X 54 Can be N or C (R 54 ), X 55 Can be N or C (R 55 ), X 56 Can be N or C (R 56 ), and X 54 To X 56 At least one of may be N. R 54 To R 56 Each is the same as described above. In the embodiment, X 54 To X 56 Two or three of them can be N.

[0311] R in Formula 2 51 To R 56 can be each independently hydrogen, deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Alkyl groups, unsubstituted or substituted with at least one R 10a Substituted C 2 -C 60 Alkenyl groups, unsubstituted or substituted with at least one R 10a Substituted C 2 -C 60 Alkynyl groups, unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Alkoxy groups, unsubstituted or substituted with at least one R 10a Substituted C 3 -C 60 Carbocyclic group, unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Heterocyclic group, unsubstituted or substituted with at least one R 10a Substituted C 6 -C 60 Aryloxy groups, unsubstituted or substituted with at least one R 10a Substituted C 6 -C 60 Arylthio group, unsubstituted or substituted with at least one R 10a Substituted C 7 -C 60 Arylalkyl groups, unsubstituted or substituted with at least one R 10aSubstituted C 2 -C 60 Heteroarylalkyl group, -C(Q 1 )(Q 2 )(Q 3 )、-Si(Q 1 )(Q 2 )(Q 3 )、-N(Q 1 )(Q 2 )、-B(Q 1 )(Q 2 )、-C(=O)(Q 1 )、-S(=O) 2 (Q 1 ) or -P(=O)(Q 1 )(Q 2 ). Q 1 To Q 3 and R 10a Each may be the same as described herein.

[0312] R in Formula 2 51 To R 56 Can be independently:

[0313] Hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, C 1 -C 20 Alkyl group or C 1 -C 20 Alkoxy groups;

[0314] Each was deuterated, -F, -Cl, -Br, -I, -CD 3 、-CD 2 H.-CDH 2 , -CF 3 , -CF 2 H, -CFH 2 , hydroxyl group, cyano group, nitro group, C 1 -C 10 C substituted with an alkyl group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, an adamantyl group, a norbornyl group, a norbornyl group, a cyclopentenyl group, a cyclohexenyl group, a cycloheptenyl group, a phenyl group, a biphenyl group, a naphthyl group, a pyridyl group, a pyrimidinyl group, or a combination thereof 1 -C 20 Alkyl group or C 1 -C 20 Alkoxy groups;

[0315] Each is unsubstituted or substituted with deuterium, -F, -Cl, -Br, -I, -CD 3、-CD 2 H.-CDH 2 , -CF 3 , -CF 2 H, -CFH 2 , hydroxyl group, cyano group, nitro group, C 1 -C 20 Alkyl group, C 1 -C 20 an alkoxy group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, an adamantyl group, a norbornyl group, a norbornyl group, a cyclopentenyl group, a cyclohexenyl group, a cycloheptenyl group, a phenyl group, a biphenyl group, (C 1 -C 10 alkyl)phenyl group, naphthyl group, fluorenyl group, phenanthryl group, anthracenyl group, fluoranthenyl group, triphenylenyl group, pyrenyl group, a pyrrolyl group, a thienyl group, a furanyl group, an imidazolyl group, a pyrazolyl group, a thiazolyl group, an isothiazolyl group, an oxazolyl group, an isoxazolyl group, a pyridyl group, a pyrazinyl group, a pyrimidinyl group, a pyridazinyl group, an isoindolyl group, an indolyl group, an indazolyl group, a purinyl group, a quinolyl group, an isoquinolyl group, a benzoquinolyl group, a quinoxalinyl group, a quinazolinyl group, a cinnolinyl group, group, a carbazolyl group, a phenanthroline group, a benzimidazolyl group, a benzofuranyl group, a benzothiophenyl group, a benzothiazolyl group, a benzoxazolyl group, a benzisoxazolyl group, a triazolyl group, a tetrazolyl group, an oxadiazolyl group, a triazine group, a dibenzofuranyl group, a dibenzothiophenyl group, a benzocarbazolyl group, a dibenzocarbazolyl group, an imidazopyridyl group, an imidazopyrimidinyl group, -O(Q 31 )、-S(Q 31 )、-Si(Q 31 )(Q 32 )(Q 33 )、-N(Q 31 )(Q 32 )、-B(Q 31 )(Q 32 )、-P(Q 31 )(Q 32 )、-C(=O)(Q 31 )、-S(=O) 2 (Q 31 )、-P(=O)(Q 31 )(Q 32) or any combination thereof substituted by a cyclopentyl group, cyclohexyl group, cycloheptyl group, cyclooctyl group, adamantyl group, norbornyl group, norbornyl group, cyclopentenyl group, cyclohexenyl group, cycloheptenyl group, phenyl group, biphenyl group, (C 1 -C 10 alkyl)phenyl group, naphthyl group, fluorenyl group, phenanthryl group, anthracenyl group, fluoranthenyl group, triphenylenyl group, pyrenyl group, a benzofuranyl group, a quinolyl group, an isoquinolyl group, a benzoquinolyl group, a quinoxalinyl group, a quinazolinyl group, a cinnolinyl group, a carbazolyl group, a phenanthrolinyl group, a benzimidazolyl group, a benzofuranyl group, a benzothiophene ... a benzothiophenyl group, a benzisothiazolyl group, a benzoxazolyl group, a benzisoxazolyl group, a triazolyl group, a tetrazolyl group, an oxadiazolyl group, a triazine group, a dibenzofuranyl group, a dibenzothiophenyl group, a benzocarbazolyl group, a dibenzocarbazolyl group, an imidazopyridyl group, an imidazopyrimidyl group, an azacarbazolyl group, an azadibenzofuranyl group, an azadibenzothiophenyl group, an azafluorenyl group, an azadibenzosilyl group, or a group represented by Formula 91; or

[0316] -C(Q 1 )(Q 2 )(Q 3 )、-Si(Q 1 )(Q 2 )(Q 3 )、-N(Q 1 )(Q 2 )、-B(Q 1 )(Q 2 )、-C(=O)(Q 1 )、-S(=O) 2 (Q 1 ) or -P(=O)(Q 1 )(Q 2 ),

[0317] Q 1 To Q 3 and Q 31 To Q 33 Can be independently:

[0318] -CH 3 、-CD 3 、-CD 2H.-CDH 2 、-CH 2 CH 3 、-CH 2 CD 3 、-CH 2 CD 2 H, -CH 2 CDH 2 、-CHDCH 3 、-CHDCD 2 H, -CHDCDH 2 、-CHDCD 3 、-CD 2 CD 3 、-CD 2 CD 2 H or -CD 2 CDH 2 ;or

[0319] Each is unsubstituted or replaced by deuterium, C 1 -C 10 An n-propyl group, isopropyl group, n-butyl group, isobutyl group, sec-butyl group, tert-butyl group, n-pentyl group, isopentyl group, sec-pentyl group, tert-pentyl group, phenyl group, naphthyl group, pyridyl group, pyrimidyl group, pyridazinyl group, pyrazinyl group or triazinyl group substituted with an alkyl group, a phenyl group, a biphenyl group, a pyridyl group, a pyrimidyl group, a pyridazinyl group, a pyrazinyl group or a triazinyl group, or a combination thereof:

[0320] Formula 91

[0321]

[0322] Among them, in formula 91,

[0323] Cyclo 91 and CY 92 may be each independently unsubstituted or substituted with at least one R 10a Substituted C 5 -C 30 The carbocyclic group is either unsubstituted or substituted with at least one R 10a Substituted C 1 -C 30 Heterocyclic groups,

[0324] X 91 Can be single bond, O, S, N(R 91 )、B(R 91 )、C(R 91a )(R 91b ) or Si(R 91a )(R 91b ), R91 , R 91a and R 91b Each can be respectively related to R 82 , R 82a and R 82b Same as described, R 10a can be the same as described herein, and

[0325] * indicates the binding site with the adjacent atom.

[0326] For example, in Equation 91,

[0327] Cyclo 91 and CY 92 may be each independently unsubstituted or substituted with at least one R 10a a substituted phenyl group, a pyridine group, a pyrimidine group, a pyrazine group, a pyridazine group or a triazine group,

[0328] R 91 , R 91a and R 91b Can be independently:

[0329] Hydrogen or C 1 -C 10 an alkyl group; or

[0330] Each is unsubstituted or replaced by deuterium, C 1 -C 10 A phenyl group, a pyridyl group, a pyrimidyl group, a pyridazinyl group, a pyrazinyl group, or a triazinyl group substituted with an alkyl group, a phenyl group, a biphenyl group, a pyridyl group, a pyrimidyl group, a pyridazinyl group, a pyrazinyl group, or a triazinyl group, or a combination thereof.

[0331] In formula 2, *-(L 51 ) b51 -R 51 The groups represented by *-(L 52 ) b52 -R 52 The groups represented may each be other than a phenyl group.

[0332] In the embodiment, in Formula 2, 51 ) b51 -R 51 The groups represented by *-(L 52 ) b52 -R 52 The groups represented may be the same as each other.

[0333] In the embodiment, in Formula 2, 51 ) b51 -R 51The groups represented by *-(L 52 ) b52 -R 52 The groups represented may be different from each other.

[0334] In an embodiment, b51 and b52 in Formula 2 may each be 1, 2 or 3, and L 51 and L 52 may be each independently unsubstituted or substituted with at least one R 10a A divalent group of a substituted phenyl group, pyridine group, pyrimidine group, pyridazine group, pyrazine group or triazine group.

[0335] In an embodiment, R in Formula 2 51 and R 52 may be each independently unsubstituted or substituted with at least one R 10a Substituted C 3 -C 60 Carbocyclic group, unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Heterocyclic group, unsubstituted or substituted with at least one R 10a Substituted C 6 -C 60 Aryloxy groups, unsubstituted or substituted with at least one R 10a Substituted C 6 -C 60 Arylthio group, -C(Q 1 )(Q 2 )(Q 3 ) or -Si(Q 1 )(Q 2 )(Q 3 ),as well as

[0336] Q 1 To Q 3 may be each independently unsubstituted or substituted with deuterium, -F, a cyano group, C 1 -C 60 Alkyl group, C 1 -C 60 C substituted with an alkoxy group, a phenyl group, a biphenyl group or a combination thereof 3 -C 60 Carbocyclic group or C 1 -C 60 Heterocyclic group. 10a Can be the same as described in this article.

[0337] In an implementation scheme,

[0338] In formula 2, *-(L 51 ) b51 -R51 The group represented by may be a group represented by one of the formulas CY51-1 to CY51-26 (for example, a group selected from the formulas CY51-1 to CY51-26), and / or

[0339] In formula 2, *-(L 52 ) b52 -R 52 The group represented by may be a group represented by one of the formulas CY52-1 to CY52-26 (eg, a group selected from the formulas CY52-1 to CY52-26), and / or

[0340] In formula 2, *-(L 53 ) b53 -R 53 The group represented by may be a group represented by one of the formulas CY53-1 to CY53-27 (for example, selected from the formulas CY53-1 to CY53-27), -C(Q 1 )(Q 2 )(Q 3 ) or -Si(Q 1 )(Q 2 )(Q 3 )(Q 1 To Q 3 may each be the same as described herein):

[0341]

[0342]

[0343]

[0344]

[0345] Among them, in Formula CY51-1 to Formula CY51-26, Formula CY52-1 to Formula CY52-26 and Formula CY53-1 to Formula CY53-27,

[0346] Y 63 Can be single bond, O, S, N(R 63 )、B(R 63 )、C(R 63a )(R 63b ) or Si(R 63a )(R 63b ),

[0347] Y 64 Can be single bond, O, S, N(R 64 )、B(R 64 )、C(R 64a )(R64b ) or Si(R 64a )(R 64b ),

[0348] Y 67 Can be single bond, O, S, N(R 67 )、B(R 67 )、C(R 67a )(R 67b ) or Si(R 67a )(R 67b ), Y 68 Can be single bond, O, S, N(R 68 )、B(R 68 )、C(R 68a )(R 68b ) or Si(R 68a )(R 68b ),

[0349] Y in formula CY51-16 and formula CY51-17 63 and Y 64 Each of may not be a single bond at the same time,

[0350] Y in formula CY52-16 and formula CY52-17 67 and Y 68 Each of may not be a single bond at the same time,

[0351] R 51a To R 51e , R 61 To R 64 , R 63a , R 63b , R 64a and R 64b Each can be referenced by R 51 description to understand, and R 51a To R 51e Each of them may not be hydrogen,

[0352] R 52a To R 52e , R 65 To R 68 , R 67a , R 67b , R 68a and R 68b Each can be referenced by R 52 description to understand, and R 52a To R 52e Each of them may not be hydrogen,

[0353] R 53a To R 53e , R69a and R 69b Each can be referenced by R 53 description to understand, and R 53a To R 53e may each be other than hydrogen, and

[0354] * indicates the binding site with the adjacent atom.

[0355] For example,

[0356] In Formula CY51-1 to Formula CY51-26 and Formula CY52-1 to Formula 52-26, R 51a To R 51e and R 52a To R 52e Can be independently:

[0357] Each is unsubstituted or substituted with deuterium, -F, -Cl, -Br, -I, -CD 3 、-CD 2 H.-CDH 2 , -CF 3 , -CF 2 H, -CFH 2 , hydroxyl group, cyano group, nitro group, C 1 -C 20 Alkyl group, C 1 -C 20 an alkoxy group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, an adamantyl group, a norbornyl group, a norbornyl group, a cyclopentenyl group, a cyclohexenyl group, a cycloheptenyl group, a phenyl group, a biphenyl group, (C 1 -C 10 alkyl)phenyl group, naphthyl group, fluorenyl group, phenanthryl group, anthracenyl group, fluoranthenyl group, triphenylenyl group, pyrenyl group, a benzofuranyl group, a benzothiophenyl ... isothiazolyl group, benzoxazolyl group, benzisoxazolyl group, triazolyl group, tetrazolyl group, oxadiazolyl group, triazinyl group, dibenzofuranyl group, dibenzothiophenyl group, benzocarbazolyl group, dibenzocarbazolyl group, imidazopyridyl group, imidazopyrimidyl group or a combination thereof substituted with a cyclopentyl group, cyclohexyl group, cycloheptyl group, cyclooctyl group, adamantyl group, norbornyl group, norbornenyl group, cyclopentenyl group, cyclohexenyl group, cycloheptenyl group, phenyl group, biphenyl group, (C 1 -C 10 alkyl)phenyl group, naphthyl group, fluorenyl group, phenanthryl group, anthracenyl group, fluoranthenyl group, triphenylenyl group, pyrenyl group, a benzofuranyl group, a quinolyl group, an isoquinolyl group, a benzoquinolyl group, a quinoxalinyl group, a quinazolinyl group, a cinnolinyl group, a carbazolyl group, a phenanthrolinyl group, a benzimidazolyl group, a benzofuranyl group, a benzothiophene ... a benzothiophenyl group, a benzisothiazolyl group, a benzoxazolyl group, a benzisoxazolyl group, a triazolyl group, a tetrazolyl group, an oxadiazolyl group, a triazine group, a dibenzofuranyl group, a dibenzothiophenyl group, a benzocarbazolyl group, a dibenzocarbazolyl group, an imidazopyridyl group, an imidazopyrimidyl group, an azacarbazolyl group, an azadibenzofuranyl group, an azadibenzothiophenyl group, an azafluorenyl group, an azadibenzosilyl group, or a group represented by Formula 91; or

[0358] -C(Q 1 )(Q 2 )(Q 3 ) or -Si(Q 1 )(Q 2 )(Q 3 ).

[0359] Q 1 To Q 3may be each independently unsubstituted or substituted with deuterium, C 1 -C 10 a phenyl group, a naphthyl group, a pyridyl group, a pyrimidyl group, a pyridazinyl group, a pyrazinyl group, or a triazinyl group substituted with an alkyl group, a phenyl group, a biphenyl group, a pyridyl group, a pyrimidyl group, a pyridazinyl group, a pyrazinyl group, or a triazinyl group, or a combination thereof,

[0360] In formula CY51-16 and formula CY51-17, i) Y 63 Can be O or S, and Y 64 It can be Si(R 64a )(R 64b ), or ii) Y 63 It can be Si(R 63a )(R 63b ), and Y 64 Can be O or S, and

[0361] In formula CY52-16 and formula CY52-17, i) Y 67 Can be O or S, and Y 68 It can be Si(R 68a )(R 68b ), or ii) Y 67 It can be Si(R 67a )(R 67b ), and Y 68 Can be O or S.

[0362] Formula 3

[0363]

[0364] The ring CY in formula 3 71 and CY 72 can be independently π-electron-rich C 3 -C 60 A cyclic group or a pyridine group.

[0365] X in Formula 3 71 It may be a single bond or a linking group comprising O, S, N, B, C, Si or a combination thereof.

[0366] * in Formula 3 represents a binding site with any atom included in the remaining parts other than Formula 3 in the third compound.

[0367] Formula 3-1

[0368]

[0369] Formula 3-2

[0370]

[0371] Formula 3-3

[0372]

[0373] Formula 3-4

[0374]

[0375] Formula 3-5

[0376]

[0377] Ring CY in Formula 3-1 to Formula 3-5 71 To Ring CY 74 can be independently π-electron-rich C 3 -C 60 A cyclic group or a pyridine group.

[0378] X in Formula 3-1 to Formula 3-5 82 Can be single bond, O, S, N[(L 82 ) b82 -R 82 ]、C(R 82a )(R 82b ) or Si(R 82a )(R 82b ).

[0379] X in Formula 3-1 to Formula 3-5 83 Can be single bond, O, S, N[(L 83 ) b83 -R 83 ]、C(R 83a )(R 83b ) or Si(R 83a )(R 83b ).

[0380] X in Formula 3-1 to Formula 3-5 84 Can be O, S, N[(L 84 ) b84 -R 84 ]、C(R 84a )(R 84b ) or Si(R 84a )(R 84b ).

[0381] X in Formula 3-1 to Formula 3-5 85 It can be C or Si.

[0382] L in Formula 3-1 to Formula 3-5 81 To L 85can be independently a single bond, *-C(Q 4 )(Q 5 )-*'、*-Si(Q 4 )(Q 5 )-*', unsubstituted or replaced by at least one R 10a Substituted divalent π-electron-rich C 3 -C 60 The cyclic group is either unsubstituted or substituted with at least one R 10a Substituted pyridinylene group. * and *' are each a bonding site to an adjacent atom.

[0383] Q 4 and Q 5 You can each share your experience with Q 1 Same as described.

[0384] b81 to b85 in Formula 3-1 to Formula 3-5 may each independently be an integer of 1 to 5.

[0385] R 71 To R 74 , R 81 To R 85 , R 82a , R 82b , R 83a , R 83b , R 84a and R 84b Each may be the same as described herein.

[0386] a71 to a74 in Formula 3-1 to Formula 3-5 represent R 71 The number of R 74 and may be independently an integer from 0 to 20. When a71 is 2 or greater, two or more R 71 can be the same as or different from each other. When a72 is 2 or greater than 2, two or more R 72 can be the same as or different from each other. When a73 is 2 or greater than 2, two or more R 73 may be the same as or different from each other, and when a74 is 2 or greater, two or more R 74 a71 to a74 may be an integer of 0 to 8, each independently.

[0387] R 10a Can be the same as described herein.

[0388] In Formula 3-1 to Formula 3-5, L 81 To L 85 Can be independently:

[0389] a single key; or

[0390] *-C(Q 4 )(Q 5 )-*' or *-Si(Q 4 )(Q 5 )-*', * and *' are each a binding site to an adjacent atom; or

[0391] Each is unsubstituted or substituted with deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, C 1 -C 20 Alkyl group, C 1 -C 20 an alkoxy group, a phenyl group, a naphthyl group, a pyridyl group, a pyrimidyl group, a triazine group, a fluorenyl group, a dimethylfluorenyl group, a diphenylfluorenyl group, a carbazolyl group, a phenylcarbazolyl group, a dibenzofuranyl group, a dibenzothienyl group, a dibenzosilyl group, a dimethyldibenzosilyl group, a diphenyldibenzosilyl group, an -O(Q 31 )、-S(Q 31 )、-Si(Q 31 )(Q 32 )(Q 33 )、-N(Q 31 )(Q 32 )、-B(Q 31 )(Q 32 )、-P(Q 31 )(Q 32 )、-C(=O)(Q 31 )、-S(=O) 2 (Q 31 )、-P(=O)(Q 31 )(Q 32 ) or a combination thereof substituted with a phenyl group, a naphthalene group, an anthracene group, a phenanthrene group, a triphenylene group, a pyrene group, group, cyclopentadiene group, furan group, thiophene group, silole group, indene group, fluorene group, indole group, carbazole group, benzofuran group, dibenzofuran group, benzothiophene group, dibenzothiophene group, benzosilole group, dibenzosilole group, azafluorene group, azacarbazole group, azadibenzofuran group, azadibenzothiophene group, azadibenzosilole group, pyridine group, pyrimidine group, pyrazine group a divalent group selected from the group consisting of a benzopyrazole group, a benzoimidazole group, a benzoxazole group, a benzothiazole group, a benzooxadiazole group, or a benzothiadiazole group,

[0392] Where Q 4 , Q 5 and Q 31 To Q 33 can be independently hydrogen, deuterium, C 1 -C 20 Alkyl group, C 1 -C 20 an alkoxy group, a phenyl group, a biphenyl group, a terphenyl group, a pyridyl group, a pyrimidyl group, a pyridazinyl group, a pyrazinyl group or a triazinyl group.

[0393] In one or more than one embodiment, the The group represented may be a group represented by one of the formulas CY71-1(1) to CY71-1(8) (for example, a group selected from the formulas CY71-1(1) to CY71-1(8)), and / or

[0394] In formula 3-1 and formula 3-3, The group represented may be a group represented by one of the formulas CY71-2(1) to CY71-2(8) (for example, a group selected from the formulas CY71-2(1) to CY71-2(8)), and / or

[0395] In formula 3-2 and formula 3-4, The group represented may be a group represented by one of the formulas CY71-3(1) to CY71-3(32) (for example, a group selected from the formulas CY71-3(1) to CY71-3(32)),

[0396] In formula 3-3 to formula 3-5, The group represented may be a group represented by one of the formulas CY71-4(1) to CY71-4(32) (for example, a group selected from the formulas CY71-4(1) to CY71-4(32)), and / or

[0397] In formula 3-5, The group represented may be a group represented by one of the formulas CY71-5(1) to CY71-5(8) (for example, a group selected from the formulas CY71-5(1) to CY71-5(8)):

[0398]

[0399]

[0400]

[0401]

[0402] Among them, in formula CY71-1(1) to formula CY71-1(8), formula CY71-2(1) to formula CY71-2(8), formula CY71-3(1) to formula CY71-3(32), formula CY71-4(1) to formula CY71-4(32) and formula CY71-5(1) to formula CY71-5(8),

[0403] X 81 To X 85 , L 81 ,b81,R 81 and R 85 may each be the same as described herein,

[0404] X 86 Can be single bond, O, S, N(R 86 )、B(R 86 )、C(R 86a )(R 86b ) or Si(R 86a )(R 86b ),

[0405] X 87 Can be single bond, O, S, N(R 87 )、B(R 87 )、C(R 87a )(R 87b ) or Si(R 87a )(R 87b ),

[0406] In Formula CY71-1(1) to Formula CY71-1(8) and Formula CY71-4(1) to Formula CY71-4(32), X 86 and X 87 Each of may not be a single bond at the same time,

[0407] X 88 Can be single bond, O, S, N(R 88 )、B(R 88 )、C(R 88a )(R 88b ) or Si(R 88a )(R 88b ),

[0408] X 89 Can be single bond, O, S, N(R 89 )、B(R 89 )、C(R 89a )(R 89b ) or Si(R 89a )(R 89b ),

[0409] In Formulas CY71-2(1) to CY71-2(8), Formulas CY71-3(1) to CY71-3(32), and Formulas CY71-5(1) to CY71-5(8), X 88 and X 89 Each of may not be a single bond at the same time, and

[0410] R 86 To R 89 , R 86a , R 86b , R 87a , R 87b , R 88a , R 88b , R 89a and R 89b can be respectively related to R 81 Same as described.

[0411] Formula 502

[0412]

[0413] Formula 503

[0414]

[0415] Ring A in Formula 502 and Formula 503 501 To Ring A 504 Can be C independently 3 -C 60 Carbocyclic group or C 1 -C 60 Heterocyclic group.

[0416] Y in Equation 502 and Equation 503 505 Can be O, S, N (R 505 )、B(R 505 )、C(R 505a )(R 505b ) or Si(R 505a )(R 505b ).

[0417] Y in Equation 502 and Equation 503 506 Can be O, S, N (R 506 )、B(R 506 )、C(R 506a )(R 506b ) or Si(R 506a )(R 506b ).

[0418] Y in Equation 502 and Equation 503 507Can be O, S, N (R 507 )、B(R 507 )、C(R 507a )(R 507b ) or Si(R 507a )(R 507b ).

[0419] Y in Equation 502 and Equation 503 508 Can be O, S, N (R 508 )、B(R 508 )、C(R 508a )(R 508b ) or Si(R 508a )(R 508b ).

[0420] Y in Equation 502 and Equation 503 51 and Y 52 Each may independently be B, P(═O) or S(═O).

[0421] R in Equation 502 and Equation 503 500a , R 500b , R 501 To R 508 , R 505a , R 505b , R 506a , R 506b , R 507a , R 507b , R 508a and R 508b Can be the same as described herein.

[0422] a501 to a504 in Formula 502 and Formula 503 represent R 501 The number of R 504 The number of R and R can be independently an integer from 0 to 20. When a501 can be 2 or more, two or more R 501 can be the same or different from each other. When a502 is 2 or greater than 2, two or more R 502 can be the same or different from each other. When a503 is 2 or greater than 2, two or more R 503 can be the same or different from each other, and when a504 can be 2 or greater than 2, two or more R 504 a501 to a504 may be an integer of 0 to 8, each independently.

[0423] In this manual, R 51 To R 56 , R 71 To R 74 , R81 To R 85 , R 82a , R 82b , R 83a , R 83b , R 84a , R 84b , R 500a , R 500b , R 501 To R 508 , R 505a , R 505b , R 506a , R 506b , R 507a , R 507b , R 508a and R 508b can be each independently hydrogen, deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Alkyl groups, unsubstituted or substituted with at least one R 10a Substituted C 2 -C 60 Alkenyl groups, unsubstituted or substituted with at least one R 10a Substituted C 2 -C 60 Alkynyl groups, unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Alkoxy groups, unsubstituted or substituted with at least one R 10a Substituted C 3 -C 60 Carbocyclic group, unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Heterocyclic group, unsubstituted or substituted with at least one R 10a Substituted C 6 -C 60 Aryloxy groups, unsubstituted or substituted with at least one R 10a Substituted C 6 -C 60 Arylthio group, unsubstituted or substituted with at least one R 10a Substituted C 7 -C 60 Arylalkyl groups, unsubstituted or substituted with at least one R 10a Substituted C 2 -C 60 Heteroarylalkyl group, -C(Q 1 )(Q 2 )(Q 3 )、-Si(Q1 )(Q 2 )(Q 3 )、-N(Q 1 )(Q 2 )、-B(Q 1 )(Q 2 )、-C(=O)(Q 1 )、-S(=O) 2 (Q 1 ) or -P(=O)(Q 1 )(Q 2 ). Q 1 To Q 3 and R 10a Each may be the same as described herein.

[0424] In the embodiment, i) R in Formula 2, Formula 3-1 to Formula 3-5, Formula 502 and Formula 503 51 To R 56 , R 71 To R 74 , R 81 To R 85 , R 82a , R 82b , R 83a , R 83b , R 84a and R 84b , R 500a , R 500b , R 501 To R 508 , R 505a , R 505b , R 506a , R 506b , R 507a , R 507b , R 508a and R 508b and ii) R 10a Can be independently:

[0425] Hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, C 1 -C 20 Alkyl group or C 1 -C 20 Alkoxy groups;

[0426] Each was deuterated, -F, -Cl, -Br, -I, -CD 3 、-CD 2 H.-CDH 2 , -CF 3 , -CF 2 H, -CFH 2, hydroxyl group, cyano group, nitro group, C 1 -C 10 C substituted with an alkyl group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, an adamantyl group, a norbornyl group, a norbornyl group, a cyclopentenyl group, a cyclohexenyl group, a cycloheptenyl group, a phenyl group, a biphenyl group, a naphthyl group, a pyridyl group, a pyrimidinyl group, or a combination thereof 1 -C 20 Alkyl group or C 1 -C 20 Alkoxy groups;

[0427] Each is unsubstituted or substituted with deuterium, -F, -Cl, -Br, -I, -CD 3 、-CD 2 H.-CDH 2 , -CF 3 , -CF 2 H, -CFH 2 , hydroxyl group, cyano group, nitro group, C 1 -C 20 Alkyl group, C 1 -C 20 an alkoxy group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, an adamantyl group, a norbornyl group, a norbornyl group, a cyclopentenyl group, a cyclohexenyl group, a cycloheptenyl group, a phenyl group, a biphenyl group, (C 1 -C 10 alkyl)phenyl group, naphthyl group, fluorenyl group, phenanthryl group, anthracenyl group, fluoranthenyl group, triphenylenyl group, pyrenyl group, a pyrrolyl group, a thienyl group, a furanyl group, an imidazolyl group, a pyrazolyl group, a thiazolyl group, an isothiazolyl group, an oxazolyl group, an isoxazolyl group, a pyridyl group, a pyrazinyl group, a pyrimidinyl group, a pyridazinyl group, an isoindolyl group, an indolyl group, an indazolyl group, a purinyl group, a quinolyl group, an isoquinolyl group, a benzoquinolyl group, a quinoxalinyl group, a quinazolinyl group, a cinnolinyl group, group, a carbazolyl group, a phenanthroline group, a benzimidazolyl group, a benzofuranyl group, a benzothiophenyl group, a benzothiazolyl group, a benzoxazolyl group, a benzisoxazolyl group, a triazolyl group, a tetrazolyl group, an oxadiazolyl group, a triazine group, a dibenzofuranyl group, a dibenzothiophenyl group, a benzocarbazolyl group, a dibenzocarbazolyl group, an imidazopyridyl group, an imidazopyrimidinyl group, -O(Q 31 )、-S(Q 31 )、-Si(Q 31 )(Q 32 )(Q33 )、-N(Q 31 )(Q 32 )、-B(Q 31 )(Q 32 )、-P(Q 31 )(Q 32 )、-C(=O)(Q 31 )、-S(=O) 2 (Q 31 )、-P(=O)(Q 31 )(Q 32 ) or a combination thereof substituted by a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, an adamantyl group, a norbornyl group, a norbornyl group, a cyclopentenyl group, a cyclohexenyl group, a cycloheptenyl group, a phenyl group, a biphenyl group, (C 1 -C 10 alkyl)phenyl group, naphthyl group, fluorenyl group, phenanthryl group, anthracenyl group, fluoranthenyl group, triphenylenyl group, pyrenyl group, a benzofuranyl group, a quinolyl group, an isoquinolyl group, a benzoquinolyl group, a quinoxalinyl group, a quinazolinyl group, a cinnolinyl group, a carbazolyl group, a phenanthrolinyl group, a benzimidazolyl group, a benzofuranyl group, a benzothiophene ... a benzothiophenyl group, a benzisothiazolyl group, a benzoxazolyl group, a benzisoxazolyl group, a triazolyl group, a tetrazolyl group, an oxadiazolyl group, a triazine group, a dibenzofuranyl group, a dibenzothiophenyl group, a benzocarbazolyl group, a dibenzocarbazolyl group, an imidazopyridyl group, an imidazopyrimidyl group, an azacarbazolyl group, an azadibenzofuranyl group, an azadibenzothiophenyl group, an azafluorenyl group, an azadibenzosilyl group, or a group represented by Formula 91; or

[0428] -C(Q 1 )(Q 2 )(Q 3 )、-Si(Q 1 )(Q 2 )(Q 3 )、-N(Q 1 )(Q 2 )、-B(Q 1 )(Q 2 )、-C(=O)(Q 1 )、-S(=O) 2 (Q 1) or -P(=O)(Q 1 )(Q 2 ),

[0429] Where Q 1 To Q 3 and Q 31 To Q 33 Can be independently:

[0430] -CH 3 、-CD 3 、-CD 2 H.-CDH 2 、-CH 2 CH 3 、-CH 2 CD 3 、-CH 2 CD 2 H, -CH 2 CDH 2 、-CHDCH 3 、-CHDCD 2 H, -CHDCDH 2 、-CHDCD 3 、-CD 2 CD 3 、-CD 2 CD 2 H or -CD 2 CDH 2 ;or

[0431] Each is unsubstituted or replaced by deuterium, C 1 -C 10 An n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an n-pentyl group, an isopentyl group, a sec-pentyl group, a tert-pentyl group, a phenyl group, a naphthyl group, a pyridyl group, a pyrimidyl group, a pyridazinyl group, a pyrazinyl group or a triazinyl group substituted with an alkyl group, a phenyl group, a biphenyl group, a pyridyl group, a pyrimidinyl group, a pyridazinyl group, a pyrazinyl group or a triazinyl group or a combination thereof.

[0432] In an embodiment, i) R in Formula 1 1 To R 2 , R 31 To R 35 and R 4 ii) R in Formula 2, Formula 3-1 to Formula 3-5, Formula 502 and Formula 503 51 To R 56 , R 71 To R 74 , R 81 To R 85 , R82a , R 82b , R 83a , R 83b , R 84a and R 84b , R 500a , R 500b , R 501 To R 508 , R 505a , R 505b , R 506a , R 506b , R 507a , R 507b , R 508a and R 508b , and iii) R 10a can be independently

[0433] Hydrogen, deuterium, -F, cyano group, nitro group, -CH 3 、-CD 3 、-CD 2 H.-CDH 2 , -CF 3 , -CF 2 H, -CFH 2 ,

[0434] A group represented by one of Formula 9-1 to Formula 9-19 (eg, one selected from Formula 9-1 to Formula 9-19), and

[0435] A group represented by one of Formula 10-1 to Formula 10-246 (for example, selected from Formula 10-1 to Formula 10-246), -C(Q 1 )(Q 2 )(Q 3 )、-Si(Q 1 )(Q 2 )(Q 3 ) or -P(=O)(Q 1 )(Q 2 )(Q 1 To Q 3 Each is the same as described herein):

[0436]

[0437]

[0438]

[0439]

[0440]

[0441]

[0442]

[0443] In Formulae 9-1 to 9-19 and 10-1 to 10-246, * represents a bonding site with an adjacent atom, "D" represents a deuterium atom, "Ph" represents a phenyl group, and "TMS" represents a trimethylsilyl group.

[0444] Examples of Compounds

[0445] In an embodiment, the organometallic compound represented by Formula 1 may be one of (eg, selected from) Compound 1 to Compound 120:

[0446]

[0447]

[0448]

[0449]

[0450]

[0451]

[0452] For example, the second compound may be one of (eg, selected from) compounds ETH1 to ETH84:

[0453]

[0454]

[0455]

[0456] For example, the third compound can be one of (eg, selected from) compounds HTH1 to HTH52:

[0457]

[0458]

[0459] In the compounds described above, Ph represents a phenyl group, D 5 means substitution with five deuteriums, and D 4 means substitution with four deuterium. For example, The group represented by The groups represented are the same.

[0460] Figure 1 Description

[0461] Figure 1 1 is a schematic cross-sectional view of a light emitting device 10 according to the embodiment. The light emitting device 10 includes a first electrode 110 , an intermediate layer 130 , and a second electrode 150 .

[0462] In the following, reference will be made to Figure 1 The structure of the light emitting device 10 and a method of manufacturing the light emitting device 10 according to the embodiment are described.

[0463] First electrode 110

[0464] exist Figure 1 In the embodiment, the substrate may be additionally arranged under the first electrode 110 or on the second electrode 150. In the embodiment, as the substrate, a glass substrate or a plastic substrate may be used. In one or more than one embodiments, the substrate may be a flexible substrate and may include a plastic having excellent or suitable heat resistance and durability, such as polyimide, polyethylene terephthalate (PET), polycarbonate, polyethylene naphthalate, polyarylate (PAR), polyetherimide or a combination thereof.

[0465] The first electrode 110 may be formed by, for example, depositing or sputtering a material for forming the first electrode 110 on a substrate. When the first electrode 110 is an anode, the material for forming the first electrode 110 may be a high work function material that facilitates hole injection.

[0466] The first electrode 110 may be a reflective electrode, a semi-transmissive reflective electrode, or a transmissive electrode. In an embodiment, when the first electrode 110 is a transmissive electrode, the material used to form the first electrode 110 may include indium tin oxide (ITO), indium zinc oxide (IZO), tin oxide (SnO 2 ), zinc oxide (ZnO), or a combination thereof. In one or more embodiments, when the first electrode 110 is a semi-transmissive reflective electrode or a reflective electrode, the material used to form the first electrode 110 may include magnesium (Mg), silver (Ag), aluminum (Al), aluminum-lithium (Al-Li), calcium (Ca), magnesium-indium (Mg-In), magnesium-silver (Mg-Ag), or a combination thereof.

[0467] The first electrode 110 may have a single-layer structure consisting of a single layer or a multi-layer structure including a plurality of layers. For example, the first electrode 110 may have a three-layer structure of ITO / Ag / ITO.

[0468] Middle layer 130

[0469] The intermediate layer 130 is disposed on the first electrode 110. The intermediate layer 130 may include an emission layer.

[0470] The intermediate layer 130 may further include a hole transport region disposed between the first electrode 110 and the emission layer and an electron transport region disposed between the emission layer and the second electrode 150 .

[0471] In addition to one or more than one suitable organic materials, the intermediate layer 130 may further include a metal-containing compound (eg, an organometallic compound), an inorganic material (eg, quantum dots), or the like.

[0472] In an embodiment, the intermediate layer 130 may include: i) two or more emission units sequentially stacked between the first electrode 110 and the second electrode 150, and ii) a charge generation layer between the two or more emission units. When the intermediate layer 130 includes two or more emission units and a charge generation layer, the light-emitting device 10 may be a tandem light-emitting device.

[0473] Hole transport region in the intermediate layer 130

[0474] The hole transport region may have: i) a single-layer structure consisting of a single layer consisting of a single material, ii) a single-layer structure consisting of a single layer consisting of a plurality of materials different from each other, or iii) a multi-layer structure including a plurality of layers containing a plurality of materials different from each other.

[0475] The hole transport region may include a hole injection layer, a hole transport layer, an emission assisting layer, an electron blocking layer, or a combination thereof.

[0476] For example, 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 / emission auxiliary layer structure, wherein the layers of each structure are stacked in sequence from the first electrode 110.

[0477] The hole transport region may include a compound represented by Formula 201, a compound represented by Formula 202, or a combination thereof:

[0478] Formula 201

[0479]

[0480] Formula 202

[0481]

[0482] In equation 201 and equation 202,

[0483] L201 To L 204 may be each independently unsubstituted or substituted with at least one R 10a Substituted divalent C 3 -C 60 The carbocyclic group is either unsubstituted or substituted with at least one R 10a Substituted divalent C 1 -C 60 Heterocyclic groups,

[0484] L 205 Can be *-O-*', *-S-*', *-N(Q 201 )-*', unsubstituted or replaced by at least one R 10a Substituted C 1 -C 20 Alkylene group, unsubstituted or substituted with at least one R 10a Substituted C 2 -C 20 Alkenylene group, unsubstituted or substituted with at least one R 10a Substituted divalent C 3 -C 60 A carbocyclic group, either unsubstituted or substituted with at least one R 10a Substituted divalent C 1 -C 60 Heterocyclic group, * and *' are each a binding site to an adjacent atom,

[0485] xa1 to xa4 may each independently be an integer from 0 to 5,

[0486] xa5 can be an integer from 1 to 10,

[0487] R 201 To R 204 and Q 201 may be each independently unsubstituted or substituted with at least one R 10a Substituted C 3 -C 60 The carbocyclic group is either unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Heterocyclic groups,

[0488] R 201 and R 202 may be optionally substituted via a single bond, unsubstituted or substituted by at least one R 10a Substituted C 1 -C 5 The alkylene group is either unsubstituted or substituted with at least one R 10a Substituted C 2 -C 5 Alkenylene groups are linked to each other to form an unsubstituted or substituted10a Substituted C 8 -C 60 Polycyclic groups (e.g., carbazole groups, etc.) (e.g., compound HT16),

[0489] R 203 and R 204 may be optionally substituted via a single bond, unsubstituted or substituted by at least one R 10a Substituted C 1 -C 5 The alkylene group is either unsubstituted or substituted with at least one R 10a Substituted C 2 -C 5 Alkenylene groups are linked to each other to form an unsubstituted or substituted 10a Substituted C 8 -C 60 Polycyclic groups, and

[0490] na1 can be an integer from 1 to 4. 10a Can be the same as described herein.

[0491] For example, each of Formula 201 and Formula 202 may include at least one of the groups represented by Formula CY201 to Formula CY217 (eg, selected from the groups represented by Formula CY201 to Formula CY217):

[0492]

[0493] In formula CY201 to formula CY217, R 10b and R 10c can be respectively related to R 10a Same as described, CY 201 To Ring CY 204 Can be C independently 3 -C 20 Carbocyclic group or C 1 -C 20 heterocyclic group, and at least one hydrogen in Formula CY201 to Formula CY217 may be unsubstituted or replaced by R as described herein 10a replace.

[0494] In one or more than one embodiment, ring CY in formula CY201 to formula CY217 201 To Ring CY 204 Each may independently be a benzene group, a naphthyl group, a phenanthrene group or an anthracene group.

[0495] In one or more than one embodiments, each of Formula 201 and Formula 202 may include at least one of the groups represented by Formula CY201 to Formula CY203.

[0496] In one or more than one embodiments, Formula 201 may include at least one of the groups represented by Formula CY201 to Formula CY203 and at least one of the groups represented by Formula CY204 to Formula CY217.

[0497] In one or more than one embodiments, in Formula 201, xa1 may be 1, R 201 can be one of the groups represented by formula CY201 to formula CY203, xa2 can be 0, and R 202 It may be one of the groups represented by formula CY204 to formula CY207.

[0498] In one or more than one embodiments, each of Formula 201 and Formula 202 may not include (eg, may exclude) the groups represented by Formula CY201 to Formula CY203.

[0499] In one or more than one embodiments, each of Formula 201 and Formula 202 may not include (e.g., may exclude) one of the groups represented by Formula CY201 to Formula CY203, and may include at least one of the groups represented by Formula CY204 to Formula CY217.

[0500] In one or more than one embodiments, each of Formula 201 and Formula 202 may not include (eg, may exclude) groups represented by Formula CY201 to Formula CY217.

[0501] For example, the hole transport region may include: one or more than one of compounds HT1 to HT46 (e.g., selected from compounds HT1 to HT46); m-MTDATA; TDATA; 2-TNATA; NPB (NPD); β-NPB; TPD; spiro-TPD; spiro-NPB; methylated-NPB; TAPC; HMTPD; 4,4',4"-tri(N-carbazolyl)triphenylamine (TCTA); polyaniline / dodecylbenzenesulfonic acid (PANI / DBSA); poly(3,4-ethylenedioxythiophene) / poly(4-styrenesulfonate) (PEDOT / PSS); polyaniline / camphorsulfonic acid (PANI / CSA); polyaniline / poly(4-styrenesulfonate) (PANI / PSS); or a combination thereof:

[0502]

[0503]

[0504]

[0505]

[0506]

[0507] The thickness of the hole transport region may be about to about For example, about to about When the hole transport region includes a hole injection layer, a hole transport layer, or a combination thereof, the thickness of the hole injection layer may be about to about For example, about to about And the thickness of the hole transport layer can be about to about For example, about to about When the thicknesses of the hole transport region, the hole injection layer, and the hole transport layer are within these ranges, satisfactory hole transport characteristics may be obtained without a significant increase in driving voltage.

[0508] The emission auxiliary layer can increase the light emission efficiency by compensating the optical resonance distance according to the wavelength of the light emitted by the emission layer, and the electron blocking layer can block or reduce the leakage of electrons from the emission layer to the hole transport region. The material that can be included in the hole transport region can be included in the emission auxiliary layer and the electron blocking layer.

[0509] p-dopant

[0510] In addition to these materials, the hole transport region may further contain a charge generating material for improving the conductive property. The charge generating material may be uniformly or non-uniformly dispersed in the hole transport region (eg, in the form of a single layer composed of the charge generating material).

[0511] The charge generating material may be, for example, a p-dopant.

[0512] For example, the p-dopant can have a LUMO level less than or equal to about -3.5 eV.

[0513] In an embodiment, the p-dopant may include a quinone derivative, a cyano group-containing compound, a compound including the element EL1 and the element EL2, or a combination thereof.

[0514] Examples of quinone derivatives are TCNQ, F4-TCNQ and the like.

[0515] Examples of the cyano group-containing compound are HAT-CN, a compound represented by Formula 221, and the like:

[0516]

[0517] Formula 221

[0518]

[0519] In formula 221,

[0520] R 221 To R 223 may be each independently unsubstituted or substituted with at least one R 10a Substituted C 3 -C 60 The carbocyclic group is either unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Heterocyclic group, R 10a can be the same as described herein, and

[0521] R 221 To R 223 At least one of the following may be independently: C each substituted by a cyano group; -F; -Cl; -Br; -I; C each substituted by a cyano group, -F, -Cl, -Br, -I or a combination thereof 1 -C 20 Alkyl group; or C substituted by a combination thereof 3 -C 60 Carbocyclic group or C 1 -C 60 Heterocyclic group.

[0522] In the compound including the element EL1 and the element EL2, the element EL1 may be a metal, a metalloid, or a combination thereof, and the element EL2 may be a nonmetal, a metalloid, or a combination thereof.

[0523] Examples of metals are alkali metals (e.g., lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), etc.); alkaline earth metals (e.g., beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), etc.); transition metals (e.g., titanium (Ti), zirconium (Zr), hafnium (Hf), vanadium (V), niobium (Nb), tantalum (Ta), chromium (Cr), molybdenum (Mo), tungsten (W), manganese (Mn), technetium (Tc), rhenium (Re), iron (Fe), ruthenium (Ru), osmium (Os), cobalt (Cs), etc.). o), rhodium (Rh), iridium (Ir), nickel (Ni), palladium (Pd), platinum (Pt), copper (Cu), silver (Ag), gold (Au), etc.); late transition metals (e.g., zinc (Zn), indium (In), tin (Sn), etc.); lanthanide metals (e.g., lanthanum (La), cerium (Ce), praseodymium (Pr), neodymium (Nd), promethium (Pm), samarium (Sm), europium (Eu), gadolinium (Gd), terbium (Tb), dysprosium (Dy), holmium (Ho), erbium (Er), thulium (Tm), ytterbium (Yb), lutetium (Lu), etc.), etc.

[0524] Examples of metalloids are silicon (Si), antimony (Sb), tellurium (Te), and the like.

[0525] Examples of nonmetals are oxygen (O), halogens (eg, F, Cl, Br, I, etc.), and the like.

[0526] Examples of compounds containing element EL1 and element EL2 are metal oxides, metal halides (e.g., metal fluorides, metal chlorides, metal bromides, metal iodides, etc.), metalloid halides (e.g., metalloid fluorides, metalloid chlorides, metalloid bromides, metalloid iodides, etc.), metal tellurides and / or combinations thereof.

[0527] Examples of metal oxides are tungsten oxides (e.g., WO, W 2 O 3 , WO 2 , WO 3 , W 2 O 5 etc.), vanadium oxides (e.g., VO, V 2 O 3 , VO 2 、V 2 O 5 etc.), molybdenum oxides (e.g., MoO, Mo 2 O 3 、MoO 2 、MoO 3 、Mo 2 O 5 etc.), rhenium oxides (e.g., ReO 3 etc.

[0528] Examples of the metal halide are alkali metal halides, alkaline earth metal halides, transition metal halides, post-transition metal halides, lanthanide metal halides, and the like.

[0529] Examples of alkali metal halides are LiF, NaF, KF, RbF, CsF, LiCl, NaCl, KCl, RbCl, CsCl, LiBr, NaBr, KBr, RbBr, CsBr, LiI, NaI, KI, RbI, CsI, etc.

[0530] An example of an alkaline earth metal halide is BeF 2 MgF 2 , CaF 2 , SrF 2 , BaF 2 、BeCl 2 MgCl 2 , CaCl 2 、SrCl 2 、BaCl 2 ,BeBr2 MgBr 2 , CaBr 2 , SrBr 2 ,BaBr 2 ,BeI 2 MgI 2 ,CaI 2 , SrI 2 ,BaI 2 wait.

[0531] Examples of transition metal halides are titanium halides (e.g., TiF 4 、TiCl 4 、TiBr 4 、TiI 4 etc.), zirconium halides (e.g., ZrF 4 、ZrCl 4 , ZrBr 4 , ZrI 4 etc.), hafnium halides (e.g., HfF 4 , HfCl 4 , HfBr 4 , HfI 4 etc.), vanadium halides (e.g., VF 3 、VCl 3 , VBr 3 VI 3 etc.), niobium halides (e.g., NbF 3 、NbCl 3 , NbBr 3 , NbI 3 etc.), tantalum halides (e.g., TaF 3 、TaCl 3 、TaBr 3 、TaI 3 etc.), chromium halides (e.g., CrF 3 CrCl 3 CrBr 3 CrI 3 etc.), molybdenum halides (e.g., MoF 3 、MoCl 3 、MoBr 3 、MoI 3 etc.), tungsten halides (e.g., WF 3 、WCl 3 , WBr 3 , WI 3 etc.), manganese halides (e.g., MnF 2 、MnCl 2 、MnBr 2 、MnI 2etc.), technetium halides (e.g., TcF 2 , TcCl 2 , TcBr 2 , TcI 2 etc.), rhenium halides (e.g., ReF 2 、ReCl 2 、ReBr 2 、ReI 2 etc.), iron (II) halides (or ferrous halides) (e.g., FeF 2 、FeCl 2 , FeBr 2 ,FeI 2 etc.), ruthenium halides (e.g., RuF 2 、RuCl 2 ,RuBr 2 , RuI 2 etc.), osmium halides (e.g., OsF 2 , OsCl 2 、OsBr 2 , OsI 2 etc.), cobalt halides (e.g., CoF 2 、CoCl 2 ,CoBr 2 、CoI 2 etc.), rhodium halides (e.g., RhF 2 , RhCl 2 , RhBr 2 , RhI 2 etc.), iridium halides (e.g., IrF 2 、IrCl 2 ,IrBr 2 ,IrI 2 etc.), nickel halides (e.g., NiF 2 、NiCl 2 、NiBr 2 , NiI 2 etc.), palladium halides (e.g., PdF 2 , PdCl 2 , PdBr 2 , PdI 2 etc.), platinum halides (e.g., PtF 2 , PtCl 2 , PtBr 2 , PtI 2 etc.), copper (I) halide (or cuprous halide) (e.g., CuF, CuCl, CuBr, CuI, etc.), silver halide (e.g., AgF, AgCl, AgBr, AgI, etc.), gold halide (e.g., AuF, AuCl, AuBr, AuI, etc.), etc.

[0532] Examples of late transition metal halides are zinc halides (e.g., ZnF 2 、ZnCl 2 、ZnBr 2 、ZnI 2 etc.), indium halides (e.g., InI 3 etc.), tin halides (e.g., SnI 2 etc.

[0533] Examples of lanthanide metal halides are YbF, YbF 2 , YbF 3 、SmF 3 、YbCl、YbCl 2 YbCl 3 、SmCl 3 , YbBr, YbBr 2 , YbBr 3 、SmBr 3 、YbI、YbI 2 ,YbI 3 、SmI 3 wait.

[0534] Examples of metalloid halides are antimony halides (e.g., SbCl 5 etc.

[0535] Examples of metal tellurides are alkali metal tellurides (e.g., Li 2 Te、Na 2 Te, K 2 Te、Rb 2 Te, Cs 2 Te, etc.), alkaline earth metal tellurides (e.g., BeTe, MgTe, CaTe, SrTe, BaTe, etc.), transition metal tellurides (e.g., TiTe 2 、ZrTe 2 、HfTe 2 、V 2 Te 3 , Nb 2 Te 3 、 2 Te 3 Cr 2 Te 3 、Mo 2 Te 3 , W 2 Te 3 , MnTe, TcTe, ReTe, FeTe, RuTe, OsTe, CoTe, RhTe, IrTe, NiTe, PdTe, PtTe, Cu 2Te, CuTe, Ag 2 Te, AgTe, Au 2 Te, etc.), late transition metal tellurides (e.g., ZnTe, etc.), lanthanide metal tellurides (e.g., LaTe, CeTe, PrTe, NdTe, PmTe, EuTe, GdTe, TbTe, DyTe, HoTe, ErTe, TmTe, YbTe, LuTe, etc.), etc.

[0536] Emission layer in the middle layer 130

[0537] When the light-emitting device 10 is a full-color light-emitting device, the emission layer can be patterned into a red emission layer, a green emission layer and / or a blue emission layer according to the sub-pixel. In an embodiment, the emission layer may have a stacked structure of two or more layers of a red emission layer, a green emission layer and a blue emission layer, wherein the two or more layers are in contact with each other or separated from each other to emit white light. In one or more embodiments, the emission layer may include two or more materials of a red light-emitting material, a green light-emitting material and a blue light-emitting material, wherein the two or more materials are mixed with each other in a single layer to emit white light.

[0538] In an embodiment, the emission layer may include a host and a dopant (or emitter). In an embodiment, in addition to the host and the dopant (or emitter), the emission layer may further include an auxiliary dopant that promotes energy transfer to the dopant (or emitter). When the emission layer includes a dopant (or emitter) and an auxiliary dopant, the dopant (or emitter) and the auxiliary dopant are different from each other.

[0539] The organometallic compound represented by Formula 1 in the present specification may be used as a dopant (or emitter), or may be used as an auxiliary dopant.

[0540] The amount (weight) of the dopant (or emitter) in the emission layer may be about 0.01 parts by weight to about 15 parts by weight based on 100 parts by weight of the host.

[0541] The organic metal compound represented by Formula 1 may be included in the emission layer. The amount (weight) of the organic metal compound in the emission layer may be about 0.01 parts by weight to about 30 parts by weight, about 0.1 parts by weight to about 20 parts by weight, or about 0.1 parts by weight to about 15 parts by weight based on 100 parts by weight of the emission layer.

[0542] In one or more embodiments, the emissive layer may comprise quantum dots.

[0543] In one or more than one embodiments, the emissive layer may include a delayed fluorescent material.The delayed fluorescent material may act as a host or a dopant in the emissive layer.

[0544] The thickness of the emission layer can be about to about 1,000 angstroms For example, about to about When the thickness of the emission layer is within these ranges, excellent or suitable light emitting characteristics may be obtained without a significant increase in driving voltage.

[0545] main body

[0546] The host in the emission layer may include the second compound or the third compound described in this specification, or a combination thereof.

[0547] In an embodiment, the host may include a compound represented by Formula 301:

[0548] Formula 301

[0549] [Ar 301 ] xb11 -[(L 301 ) xb1 -R 301 ] xb21

[0550] Wherein, in Formula 301,

[0551] Ar 301 may be unsubstituted or substituted with at least one R 10a Substituted C 3 -C 60 The carbocyclic group is either unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Heterocyclic group, L 301 may be unsubstituted or substituted with at least one R 10a Substituted divalent C 3 -C 60 The carbocyclic group is either unsubstituted or substituted with at least one R 10a Substituted divalent C 1 -C 60 Heterocyclic groups,

[0552] xb11 can be 1, 2 or 3,

[0553] xb1 can be an integer from 0 to 5.

[0554] R 301 It can be hydrogen, deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, unsubstituted or replaced by at least one R 10a Substituted C 1 -C 60 Alkyl groups, unsubstituted or substituted with at least one R10a Substituted C 2 -C 60 Alkenyl groups, unsubstituted or substituted with at least one R 10a Substituted C 2 -C 60 Alkynyl groups, unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Alkoxy groups, unsubstituted or substituted with at least one R 10a Substituted C 3 -C 60 Carbocyclic group, unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Heterocyclic group, -Si(Q 301 )(Q 302 )(Q 303 )、-N(Q 301 )(Q 302 )、-B(Q 301 )(Q 302 )、-C(=O)(Q 301 )、-S(=O) 2 (Q 301 ) or -P(=O)(Q 301 )(Q 302 ),

[0555] xb21 can be an integer from 1 to 5, and

[0556] Q 301 To Q 303 You can each share your experience with Q 1 Same as described. 10a Can be the same as described herein.

[0557] For example, when xb11 in Formula 301 is 2 or greater, two or more Ar 301 can be connected to each other via a single bond.

[0558] In one or more than one embodiments, the host may include a compound represented by Formula 301-1, a compound represented by Formula 301-2, or a combination thereof:

[0559] Formula 301-1

[0560]

[0561] Formula 301-2

[0562]

[0563] In Formula 301-1 and Formula 301-2,

[0564] Ring A 301 To Ring A 304 may be each independently unsubstituted or substituted with at least one R 10a Substituted C 3 -C 60 The carbocyclic group is either unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Heterocyclic groups,

[0565] X 301 Can be O, S, N[(L 304 ) xb4 -R 304 ]、C(R 304 )(R 305 ) or Si(R 304 )(R 305 ),

[0566] xb22 and xb23 can each independently be 0, 1 or 2,

[0567] L 301 , xb1 and R 301 may each be the same as described herein,

[0568] L 302 To L 304 can be independently related to L 301 Same as described,

[0569] xb2 to xb4 may each independently be the same as described with respect to xb1, and

[0570] R 302 To R 305 and R 311 To R 314 can be respectively related to R 301 Same as described.

[0571] In one or more embodiments, the host may include an alkaline earth metal complex, a late transition metal complex, or a combination thereof. In one or more embodiments, the host may include a Be complex (e.g., compound H55), a Mg complex, a Zn complex, or a combination thereof.

[0572] In an embodiment, the host may include: one or more than one of Compound H1 to Compound H128 (e.g., selected from Compound H1 to Compound H128); 9,10-di(2-naphthyl)anthracene (ADN); 2-methyl-9,10-bis(naphthalene-2-yl)anthracene (MADN); 9,10-di-(2-naphthyl)-2-tert-butyl-anthracene (TBADN); 4,4'-bis(N-carbazolyl)-1,1'-biphenyl (CBP); 1,3-di(9-carbazolyl)benzene (mCP); 1,3,5-tri(carbazolyl-9-yl)benzene (TCP); or a combination thereof:

[0573]

[0574]

[0575]

[0576]

[0577]

[0578]

[0579] In one or more embodiments, the host can include a silicon-containing compound, a phosphine oxide-containing compound, or a combination thereof.

[0580] The subject may have one or more than one suitable modification. For example, the subject may include only one type of compound, or may include two or more than two types of different compounds.

[0581] Phosphorescent dopants

[0582] The emission layer may include the organic metal compound represented by Formula 1 as described in the present specification as a phosphorescent dopant.

[0583] In embodiments, in the case where the emission layer includes the organic metal compound represented by Formula 1 as described herein and the organic metal compound represented by Formula 1 as described herein serves as an auxiliary dopant, the emission layer may include a phosphorescent dopant.

[0584] The phosphorescent dopant may include at least one transition metal as a central metal.

[0585] The phosphorescent dopant may include a monodentate ligand, a bidentate ligand, a tridentate ligand, a tetradentate ligand, a pentadentate ligand, a hexadentate ligand, or a combination thereof.

[0586] The phosphorescent dopant may be electrically neutral.

[0587] For example, the phosphorescent dopant may include an organometallic compound represented by Formula 401:

[0588] Formula 401

[0589] M(L 401 ) xc1 (L 402 ) xc2

[0590] Formula 402

[0591]

[0592] In equations 401 and 402,

[0593] M may be a transition metal (e.g., iridium (Ir), platinum (Pt), palladium (Pd), osmium (Os), titanium (Ti), gold (Au), hafnium (Hf), europium (Eu), terbium (Tb), rhodium (Rh), rhenium (Re), or thulium (Tm)),

[0594] L 401 may be a ligand represented by formula 402, and xc1 may be 1, 2 or 3, wherein when xc1 is 2 or greater, two or more L 401 can be the same or different from each other,

[0595] L 402 may be an organic ligand, and xc2 may be 0, 1, 2, 3 or 4, and when xc2 is 2 or greater, two or more L 402 can be the same or different from each other,

[0596] X 401 and X 402 can each independently be N or C,

[0597] Ring A 401 and Ring A 402 Can be C independently 3 -C 60 Carbocyclic group or C 1 -C 60 Heterocyclic groups,

[0598] T 401 It can be a single bond, *-O-*', *-S-*', *-C(=O)-*', *-N(Q 411 )-*'、*-C(Q 411 )(Q 412 )-*'、*-C(Q 411 )=C(Q 412 )-*'、*-C(Q 411)=*' or *=C=*', * and *' are each a binding site with an adjacent atom,

[0599] X 403 and X 404 can each independently be a chemical bond (e.g., a covalent bond or a coordination bond), O, S, N (Q 413 )、B(Q 413 )、P(Q 413 )、C(Q 413 )(Q 414 ) or Si(Q 413 )(Q 414 ),

[0600] Q 411 To Q 414 Each and About Q 1 Same as described,

[0601] R 401 and R 402 can be each independently hydrogen, deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, unsubstituted or substituted with at least one R 10a Substituted C 1 -C 20 Alkyl groups, unsubstituted or substituted with at least one R 10a Substituted C 1 -C 20 Alkoxy groups, unsubstituted or substituted with at least one R 10a Substituted C 3 -C 60 Carbocyclic group, unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Heterocyclic group, -Si(Q 401 )(Q 402 )(Q 403 )、-N(Q 401 )(Q 402 )、-B(Q 401 )(Q 402 )、-C(=O)(Q 401 )、-S(=O) 2 (Q 401 ) or -P(=O)(Q 401 )(Q 402 ),

[0602] Q 401 To Q 403 Each and About Q 1 Same as described, R 10a can be the same as described in this article,

[0603] xc11 and xc12 may each independently be an integer from 0 to 10, and

[0604] * and *' in Formula 402 each represent a binding site with M in Formula 401.

[0605] For example, in equation 402, i)X 401 can be nitrogen, and X 402 It can be carbon, or ii) X 401 and X 402 Each of can be nitrogen.

[0606] In an embodiment, when xc1 in Formula 401 is 2 or greater than 2, two or more L 401 The two rings A 401 Optionally, the linkage group may be T 402 connected to each other, and two or more L 401 The two rings A 402 Optionally, the linkage group may be T 403 are connected to each other (see Compound PD1 to Compound PD4 and Compound PD7). 402 and T 403 Can be respectively with about T 401 Same as described.

[0607] In formula 401, L 402 It can be an organic ligand. For example, L 402 It may include a halogen group, a diketone group (e.g., an acetylacetonate group), a carboxylic acid group (e.g., a picolinate group), -C(=O), an isonitrile group, -CN, a phosphorus-containing group (e.g., a phosphine group, a phosphite group, etc.), or a combination thereof.

[0608] The phosphorescent dopant may include, for example, one or more than one of (eg, selected from) Compound PD1 to Compound PD39, or a combination thereof:

[0609]

[0610]

[0611]

[0612] Fluorescent dopants

[0613] In the case where the emission layer includes the organometallic compound represented by Formula 1 as described herein and the organometallic compound represented by Formula 1 as described herein serves as an auxiliary dopant, the emission layer may include a fluorescent dopant.

[0614] In embodiments, in the case where the emission layer includes the organometallic compound represented by Formula 1 as described herein and the organometallic compound represented by Formula 1 as described herein serves as a phosphorescent dopant, the emission layer may include an auxiliary dopant.

[0615] The fluorescent dopant and the auxiliary dopant may each independently include an arylamine compound, a styrylamine compound, a boron-containing compound, or a combination thereof.

[0616] In an embodiment, the fluorescent dopant and the auxiliary dopant may each independently include a compound represented by Formula 501:

[0617] Formula 501

[0618]

[0619] In formula 501,

[0620] Ar 501 , R 501 and R 502 may be each independently unsubstituted or substituted with at least one R 10a Substituted C 3 -C 60 The carbocyclic group is either unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Heterocyclic group, L 501 To L 503 may be each independently unsubstituted or substituted with at least one R 10a Substituted divalent C 3 -C 60 The carbocyclic group is either unsubstituted or substituted with at least one R 10a Substituted divalent C 1 -C 60 Heterocyclic group, R 10a can be the same as described in this article,

[0621] xd1 to xd3 may each independently be 0, 1, 2 or 3, and

[0622] xd4 can be 1, 2, 3, 4, 5 or 6.

[0623] In an embodiment, Ar in Formula 501 501 It may be a fused cyclic group in which three or more monocyclic groups are fused together (for example, anthracene groups, group, pyrene group, etc.).

[0624] In an embodiment, xd4 in formula 501 can be 2.

[0625] For example, the fluorescent dopant and the auxiliary dopant may each include one or more than one of compounds FD1 to FD37, DPVBi, DPAVBi (eg, selected from compounds FD1 to FD37, DPVBi, DPAVBi) or a combination thereof:

[0626]

[0627]

[0628]

[0629] Delayed fluorescence material

[0630] The emitting layer may contain a delayed fluorescent material.

[0631] In the specification, the delayed fluorescent material may be selected from compounds capable of emitting delayed fluorescence based on a delayed fluorescence emission mechanism.

[0632] The delayed fluorescent material may include, for example, the fourth compound described in this specification.

[0633] The delayed fluorescent material included in the emission layer may act as a host or a dopant according to the types or kinds of other materials included in the emission layer.

[0634] In the embodiment, the difference between the triplet energy level (eV) of the delayed fluorescent material and the singlet energy level (eV) of the delayed fluorescent material may be at least about 0 eV and not more than about 0.5 eV. When the difference between the triplet energy level (eV) of the delayed fluorescent material and the singlet energy level (eV) of the delayed fluorescent material satisfies the above range, the up-conversion of the delayed fluorescent material from the triplet state to the singlet state may effectively occur, and thus the light-emitting device 10 may have improved luminous efficiency.

[0635] For example, the delayed fluorescent material may include: i) a photopolymer containing at least one electron donor (e.g., a π-electron-rich C 3 -C 60 cyclic groups, such as carbazole groups) and at least one electron acceptor (such as sulfoxide groups, cyano groups, π-electron-deficient nitrogen-containing C 1 -C 60 ii) a material comprising at least two cyclic groups fused to each other and sharing boron (B) 8 -C 60 Materials with polycyclic groups, etc.

[0636] Examples of the delayed fluorescent material may include at least one of (eg, selected from) Compound DF1 to Compound DF14:

[0637]

[0638]

[0639] quantum dots

[0640] The emissive layer may comprise quantum dots.

[0641] The term "quantum dot" as used herein refers to a crystal of a semiconductor compound, and may include any material capable of emitting light at one or more than one suitable emission wavelength depending on the size of the crystal.

[0642] The diameter of the quantum dot can be, for example, about 1 nm to about 10 nm.

[0643] Quantum dots can be synthesized by a wet chemical process, a metal organic chemical vapor deposition process, a molecular beam epitaxy process, or any process similar thereto.

[0644] The wet chemical process is a method that includes mixing the precursor material with an organic solvent and then growing the quantum dot particle crystal. When the crystal grows, the organic solvent naturally acts as a dispersant coordinated on the surface of the quantum dot crystal and controls the growth of the crystal, so that the growth of the quantum dot particles can be controlled or selected by a process that is less expensive and easier than vapor deposition methods such as metal organic chemical vapor deposition (MOCVD) or molecular beam epitaxy (MBE).

[0645] Quantum dots may include: Group II-VI semiconductor compounds; Group III-V semiconductor compounds; Group III-VI semiconductor compounds; Group I-III-VI semiconductor compounds; Group IV-VI semiconductor compounds; Group IV elements or compounds; or combinations thereof.

[0646] Examples of II-VI semiconductor compounds are: binary compounds such as CdS, CdSe, CdTe, ZnS, ZnSe, ZnTe, ZnO, HgS, HgSe, HgTe, MgSe, MgS, etc.; ternary compounds such as CdSeS, CdSeTe, CdSTe, ZnSeS, ZnSeTe, ZnSTe, HgSeS, HgSeTe, HgSTe, CdZnS, CdZ nSe, CdZnTe, CdHgS, CdHgSe, CdHgTe, HgZnS, HgZnSe, HgZnTe, MgZnSe, MgZnS, etc.; quaternary compounds, such as CdZnSeS, CdZnSeTe, CdZnSTe, CdHgSeS, CdHgSeTe, CdHgSTe, HgZnSeS, HgZnSeTe, HgZnSTe, etc.; or combinations thereof.

[0647] Examples of III-V semiconductor compounds are binary compounds such as GaN, GaP, GaAs, GaSb, AlN, AlP, AlAs, AlSb, InN, InP, InAs, InSb, etc.; ternary compounds such as GaNP, GaNAs, GaNSb, GaPAs, GaPSb, AlNP, AlNAs, AlNSb, AlPAs, AlPSb, InGaP, InNP, InAlP, InNAs, InNSb, InPAs, InPSb, etc.; quaternary compounds such as GaAlNP, GaAlNAs, GaAlNSb, GaAlPAs, GaAlPSb, GaInNP, GaInNAs, GaInNSb, GaInPAs, GaInPSb, InAlNP, InAlNAs, InAlNSb, InAlPAs, InAlPSb, etc.; or combinations thereof. In an embodiment, the III-V semiconductor compound may further include a Group II element. Examples of the Group III-V semiconductor compound further containing a Group II element are InZnP, InGaZnP, InAlZnP, and the like.

[0648] Examples of III-VI semiconductor compounds are: binary compounds such as GaS, GaSe, Ga 2 Se 3 、GaTe、InS、InSe、In 2 S 3 、In 2 Se 3 , InTe, etc.; ternary compounds, such as InGaS 3 、InGaSe 3 etc.; or a combination thereof.

[0649] Examples of Group I-III-VI semiconductor compounds are: ternary compounds such as AgInS, AgInS 2 、CuInS、CuInS 2 、CuGaO 2 、AgGaO 2 、AgAlO 2 etc.; or a combination thereof.

[0650] Examples of IV-VI semiconductor compounds are: binary compounds, such as SnS, SnSe, SnTe, PbS, PbSe, PbTe, etc.; ternary compounds, such as SnSeS, SnSeTe, SnSTe, PbSeS, PbSeTe, PbSTe, SnPbS, SnPbSe, SnPbTe, etc.; quaternary compounds, such as SnPbSSe, SnPbSeTe, SnPbSTe, etc.; or combinations thereof.

[0651] Examples of Group IV elements or compounds are: single elements such as Si, Ge, etc.; binary compounds such as SiC, SiGe, etc.; or combinations thereof.

[0652] Each element contained in the multi-element compound (eg, binary compound, ternary compound, and quaternary compound) may be present in the particle in a substantially uniform concentration or a substantially non-uniform concentration.

[0653] In an embodiment, the quantum dot may have a single structure in which the concentration of each element in the quantum dot is substantially uniform, or may have a core-shell dual structure. For example, the material contained in the core and the material contained in the shell may be different from each other.

[0654] The shell of a quantum dot can act as a protective layer to prevent chemical denaturation of the core to maintain semiconductor properties and / or a charging layer to impart electrophoretic properties to the quantum dot. The shell can be monolayer or multilayer. The interface between the core and the shell can have a concentration gradient, where the concentration of the element present in the shell decreases toward the center of the core.

[0655] Examples of quantum dot shells are oxides of metals, metalloids or non-metals, semiconductor compounds or combinations thereof. Examples of oxides of metals, metalloids or non-metals are: binary compounds such as SiO 2 、Al 2 O 3 、TiO 2 、ZnO、MnO、Mn 2 O 3 , Mn 3 O 4 , CuO, FeO, Fe 2 O 3 , Fe 3 O 4 , CoO, Co 3 O 4 , NiO, etc.; ternary compounds, such as MgAl 2 O 4 、CoFe 2 O 4 、NiFe 2 O 4 、CoMn 2 O 4etc.; or combinations thereof. Examples of semiconductor compounds are: II-VI semiconductor compounds as described herein; III-V semiconductor compounds; III-VI semiconductor compounds; I-III-VI semiconductor compounds; IV-VI semiconductor compounds; or combinations thereof. Examples of semiconductor compounds are CdS, CdSe, CdTe, ZnS, ZnSe, ZnTe, ZnSeS, ZnTeS, GaAs, GaP, GaSb, HgS, HgSe, HgTe, InAs, InP, InGaP, InSb, AlAs, AlP, AlSb, and / or combinations thereof.

[0656] The quantum dots may have a full width at half maximum (FWHM) of an emission wavelength spectrum of less than or equal to about 45 nm, less than or equal to about 40 nm, or, for example, less than or equal to about 30 nm. When the FWHM of the quantum dots is within these ranges, the quantum dots may have improved color purity or improved color reproducibility. In some embodiments, because the light emitted by the quantum dots is emitted in all directions, the wide viewing angle may be improved.

[0657] In some embodiments, quantum dots can be in the form of spherical, pyramidal, multi-armed or cubic nanoparticles, nanotubes, nanowires, nanofibers or nanoplates.

[0658] Because the band gap can be adjusted by controlling the size of the quantum dots, light with one or more suitable wavelength bands can be obtained from the quantum dot emission layer. Therefore, by using quantum dots of different diameters or sizes, a light emitting device configured to emit light of one or more suitable wavelengths can be realized. In an embodiment, the size of the quantum dots can be configured to emit red light, green light, and / or blue light. In some embodiments, the size of the quantum dots can be configured to emit white light by a combination of one or more suitable colors of light.

[0659] Electron transport region in the intermediate layer 130

[0660] The electron transport region 140 may have i) a single-layer structure consisting of a single layer consisting of a single material, ii) a single-layer structure consisting of a single layer 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.

[0661] The electron transport region may include a buffer layer, a hole blocking layer, an electron control layer, an electron transport layer, an electron injection layer, or a combination thereof.

[0662] For example, the electron transport region may have an electron transport layer / electron injection layer structure, a hole blocking layer / electron transport layer / electron injection layer structure, an electron control layer / electron transport layer / electron injection layer structure, or a buffer layer / electron transport layer / electron injection layer structure, wherein the constituent layers of each structure are stacked in sequence from the emission layer.

[0663] The electron transport region (eg, a buffer layer, a hole blocking layer, an electron control layer, or an electron transport layer in the electron transport region) may include at least one π-electron-deficient nitrogen-containing C 1 -C 60 Metal-free compounds of heterocyclic groups.

[0664] For example, the electron transport region may include a compound represented by Formula 601:

[0665] Formula 601

[0666] [Ar 601 ] xe11 -[(L 601 ) xe1 -R 601 ] xe21 .

[0667] Wherein, in Formula 601,

[0668] Ar 601 may be unsubstituted or substituted with at least one R 10a Substituted C 3 -C 60 The carbocyclic group is either unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Heterocyclic group, L 601 may be unsubstituted or substituted with at least one R 10a Substituted divalent C 3 -C 60 The carbocyclic group is either unsubstituted or substituted with at least one R 10a Substituted divalent C 1 -C 60 Heterocyclic groups,

[0669] xe11 can be 1, 2 or 3,

[0670] xe1 can be 0, 1, 2, 3, 4, or 5,

[0671] R 601 may be unsubstituted or substituted with at least one R 10a Substituted C 3 -C 60 Carbocyclic group, unsubstituted or substituted with at least one R 10a Substituted C 1 -C60 Heterocyclic group, -Si(Q 601 )(Q 602 )(Q 603 )、-C(=O)(Q 601 )、-S(=O) 2 (Q 601 ) or -P(=O)(Q 601 )(Q 602 ),

[0672] Q 601 To Q 603 You can each share your experience with Q 1 Same as described,

[0673] xe21 can be 1, 2, 3, 4, or 5, and

[0674] At least one of the following conditions can be met: 601 may be unsubstituted or substituted with at least one R 10a Substituted π-electron-deficient nitrogen-containing C 1 -C 60 Cyclic group; R 601 may be unsubstituted or substituted with at least one R 10a Substituted π-electron-deficient nitrogen-containing C 1 -C 60 A cyclic group; and L 601 may be unsubstituted or substituted with at least one R 10a Substituted divalent π-electron-deficient nitrogen-containing C 1 -C 60 Cyclic group.

[0675] In an embodiment, when xe11 in Formula 601 is 2 or greater, two or more Ar 601 can be connected to each other via a single bond.

[0676] In an embodiment, Ar in Formula 601 601 may be unsubstituted or substituted with at least one R 10a Substituted anthracene group. 10a Can be the same as described herein.

[0677] In one or more than one embodiments, the electron transport region may comprise a compound represented by Formula 601-1:

[0678] Formula 601-1

[0679]

[0680] Among them, in formula 601-1,

[0681] X 614Can be N or C (R 614 ), X 615 Can be N or C (R 615 ), X 616 Can be N or C (R 616 ), and X 614 To X 616 At least one of may be N,

[0682] L 611 To L 613 Can be respectively with about L 601 Same as described,

[0683] xe611 to xe613 may each be the same as described with respect to xe1,

[0684] R 611 To R 613 can be respectively related to R 601 Same as described, and

[0685] R 614 To R 616 can each independently be hydrogen, deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, C 1 -C 20 Alkyl group, C 1 -C 20 Alkoxy groups, unsubstituted or substituted with at least one R 10a Substituted C 3 -C 60 A carbocyclic group, either unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Heterocyclic group. 10a Can be the same as described herein.

[0686] For example, xe1 in Formula 601 and xe611 to xe613 in Formula 601-1 can each independently be 0, 1, or 2.

[0687] The electron transport region may include one or more than one of Compound ET1 to Compound ET45 (eg, selected from Compound ET1 to Compound ET45); 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline (BCP); 4,7-diphenyl-1,10-phenanthroline (Bphen); Alq 3 ; BAlq; TAZ; NTAZ; or a combination thereof:

[0688]

[0689]

[0690]

[0691]

[0692] The thickness of the electron transport region may be about to about For example, about to about When the electron transport region includes a buffer layer, a hole blocking layer, an electron control layer, an electron transport layer, or a combination thereof, the thickness of the buffer layer, the hole blocking layer, or the electron control layer may be about to about For example, about to about And the thickness of the electron transport layer can be about to about For example, about to about When the thickness of the buffer layer, the hole blocking layer, the electron control layer, the electron transport layer and / or the electron transport region is within these ranges, satisfactory electron transport characteristics may be obtained without a significant increase in driving voltage.

[0693] The electron transport region (eg, an electron transport layer in the electron transport region) may further include a metal-containing material in addition to the materials described above.

[0694] The metal-containing material can include alkali metal complex, alkaline earth metal complex or its combination. The metal ion of the alkali metal complex can be Li ion, Na ion, K ion, Rb ion or Cs ion, and the metal ion of the alkaline earth metal complex can be Be ion, Mg ion, Ca ion, Sr ion or Ba ion. The ligand coordinated with the metal ion of the alkali metal complex or alkaline earth metal complex can include hydroxyquinoline, hydroxyisoquinoline, hydroxybenzoquinoline, hydroxyacridine, hydroxyphenanthridine, hydroxyphenyloxazole, hydroxyphenylthiazole, hydroxyphenyloxadiazole, hydroxyphenylthiadiazole, hydroxyphenylpyridine, hydroxyphenylbenzimidazole, hydroxyphenylbenzothiazole, bipyridine, phenanthroline, cyclopentadiene or its combination.

[0695] For example, the metal-containing material may include a Li complex. The Li complex may include, for example, compound ET-D1 (Liq) or compound ET-D2:

[0696]

[0697] The electron transport region may include an electron injection layer that facilitates injection of electrons from the second electrode 150. The electron injection layer may directly contact the second electrode 150.

[0698] The electron injection layer may have: i) a single-layer structure composed of a single layer consisting of a single material, ii) a single-layer structure composed of a single layer consisting of multiple layers different from each other, or iii) a multi-layer structure including multiple layers containing multiple materials different from each other.

[0699] The electron injection layer may contain an alkali metal, an alkaline earth metal, a rare earth metal, a compound containing an alkali metal, a compound containing an alkaline earth metal, a compound containing a rare earth metal, an alkali metal complex, an alkaline earth metal complex, a rare earth metal complex, or a combination thereof.

[0700] The alkali metal may include Li, Na, K, Rb, Cs, or a combination thereof. The alkaline earth metal may include Mg, Ca, Sr, Ba, or a combination thereof. The rare earth metal may include Sc, Y, Ce, Tb, Yb, Gd, or a combination thereof.

[0701] The compound containing an alkali metal, the compound containing an alkaline earth metal, and the compound containing a rare earth metal may be an oxide, a halide (e.g., fluoride, chloride, bromide, iodide, etc.), or a telluride of an alkali metal, an alkaline earth metal, and a rare earth metal, or a combination thereof.

[0702] The compound containing an alkali metal may include: alkali metal oxides (e.g., Li 2 O, Cs 2 O, K 2 O, etc.); alkali metal halides (e.g., LiF, NaF, CsF, KF, LiI, NaI, CsI, KI, etc.); or a combination thereof. The compound containing an alkaline earth metal may include alkaline earth metal oxides, such as BaO, SrO, CaO, Ba x Sr 1-x O (where x is a real number satisfying 0 < x < 1), Ba x Ca 1-x O (where x is a real number satisfying 0 < x < 1), etc. The compound containing a rare earth metal may include YbF 3 、ScF 3 、Sc 2 O 3 、Y 2 O 3 、Ce 2 O 3 、GdF 3 、TbF 3 、YbI 3 、ScI 3 、TbI 3or a combination thereof. In an embodiment, the rare earth metal-containing compound may include a lanthanide metal telluride. Examples of lanthanide metal tellurides are LaTe, CeTe, PrTe, NdTe, PmTe, SmTe, EuTe, GdTe, TbTe, DyTe, HoTe, ErTe, TmTe, YbTe, LuTe, LaTe, 2 Te 3 、Ce 2 Te 3 , Pr 2 Te 3 、Nd 2 Te 3 、Pm 2 Te 3 、Sm 2 Te 3 、Eu 2 Te 3 , Gd 2 Te 3 , Tb 2 Te 3 、Dy 2 Te 3 、Ho 2 Te 3 , Er 2 Te 3 、Tm 2 Te 3 , Yb 2 Te 3 、Lu 2 Te 3 wait.

[0703] The alkali metal complex, alkaline earth metal complex and rare earth metal complex may contain i) one of the metal ions of an alkali metal, an alkaline earth metal and a rare earth metal, and ii) a ligand bonded to the metal ion, such as hydroxyquinoline, hydroxyisoquinoline, hydroxybenzoquinoline, hydroxyacridine, hydroxyphenanthridine, hydroxyphenyloxazole, hydroxyphenylthiazole, hydroxyphenyloxadiazole, hydroxyphenylthiadiazole, hydroxyphenylpyridine, hydroxyphenylbenzimidazole, hydroxyphenylbenzothiazole, bipyridine, phenanthroline, cyclopentadiene or a combination thereof.

[0704] In an embodiment, the electron injection layer may 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 a combination thereof as described above. In one or more than one embodiments, the electron injection layer may further include an organic material (e.g., a compound represented by Formula 601).

[0705] In an embodiment, the electron injection layer may include (e.g., consist of) the following: i) a compound containing an alkali metal (e.g., an alkali metal halide), or ii) a) a compound containing an alkali metal (e.g., an alkali metal halide); and b) an alkali metal, an alkaline earth metal, a rare earth metal, or a combination thereof. For example, the electron injection layer may be a KI:Yb co-deposition layer, a RbI:Yb co-deposition layer, a LiF:Yb co-deposition layer, etc.

[0706] When the electron injection layer further comprises an organic material, 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 a combination thereof can be uniformly or non-uniformly dispersed in a matrix comprising an organic material.

[0707] The thickness of the electron injection layer can be about to about And for example, about to about When the thickness of the electron injection layer is within these ranges, satisfactory electron injection characteristics can be obtained without a significant increase in driving voltage.

[0708] The second electrode 150

[0709] The second electrode 150 may be disposed on the intermediate layer 130 having the above structure. The second electrode 150 may be a cathode as an electron injection electrode, and may use metals, alloys, conductive compounds, or combinations thereof each having a low work function as a material for forming the second electrode 150.

[0710] The second electrode 150 may include Li, Ag, Mg, Al, Al-Li, Ca, Mg-In, Mg-Ag, Yb, Ag-Yb, ITO, IZO, or a combination thereof. The second electrode 150 may be a transmissive electrode, a semi-transmissive reflective electrode, or a reflective electrode.

[0711] The second electrode 150 may have a single-layer structure or a multi-layer structure including a plurality of layers.

[0712] Covering

[0713] The first covering layer may be arranged outside the first electrode 110 and / or the second covering layer may be arranged outside the second electrode 150. In particular, the light emitting device 10 may have a structure in which the first covering layer, the first electrode 110, the intermediate layer 130, and the second electrode 150 are sequentially stacked in a prescribed order, a structure in which the first electrode 110, the intermediate layer 130, the second electrode 150 and the second covering layer are sequentially stacked in a prescribed order, or a structure in which the first covering layer, the first electrode 110, the intermediate layer 130, the second electrode 150 and the second covering layer are sequentially stacked in a prescribed order.

[0714] The light generated in the emission layer of the intermediate layer 130 of the light emitting device 10 can be led out to the outside through the first electrode 110 (which is a semi-transmissive reflective electrode or a transmissive electrode) and the first covering layer. The light generated in the emission layer of the intermediate layer 130 of the light emitting device 10 can be led out to the outside through the second electrode 150 (which is a semi-transmissive reflective electrode or a transmissive electrode) and the second covering layer.

[0715] The first cover layer and the second cover layer can increase the external emission efficiency according to the principle of constructive interference, thereby increasing the light extraction efficiency of the light emitting device 10, so that the light emitting efficiency of the light emitting device 10 can be improved.

[0716] Each of the first cover layer and the second cover layer may each include a material having a refractive index greater than or equal to 1.6 (at about 589 nm).

[0717] The first covering layer and the second covering layer may each independently be an organic covering layer including an organic material, an inorganic covering layer including an inorganic material, or an organic-inorganic composite covering layer including an organic material and an inorganic material.

[0718] At least one of the first covering layer and the second covering layer may each independently include a carbocyclic compound, a heterocyclic compound, a compound containing an amine group, a porphyrin derivative, a phthalocyanine derivative, a naphthalocyanine derivative, an alkali metal complex, an alkaline earth metal complex or a combination thereof. The carbocyclic compound, the heterocyclic compound and the compound containing an amine group may be optionally substituted with a substituent containing O, N, S, Se, Si, F, Cl, Br, I or a combination thereof. In an embodiment, at least one of the first covering layer and the second covering layer may each independently include a compound containing an amine group.

[0719] In one or more than one embodiments, at least one of the first covering layer and the second covering layer may each independently include a compound represented by Formula 201, a compound represented by Formula 202, or a combination thereof.

[0720] In one or more embodiments, at least one of the first covering layer and the second covering layer may each independently contain one or more of compounds HT28 to HT33 (e.g., selected from compounds HT28 to HT33), one or more of compounds CP1 to CP6 (e.g., selected from compounds CP1 to CP6), β-NPB, or a combination thereof:

[0721]

[0722] membrane

[0723] The organometallic compound represented by Formula 1 may be included in one or more than one suitable film. Therefore, on the other hand, a film comprising an organometallic compound represented by Formula 1 is provided. The film may be, for example, an optical member (or light control mechanism) (e.g., a color filter, a color conversion member, a cover layer, a light extraction efficiency enhancement layer, a selective light absorption layer, a polarization layer, a layer containing quantum dots, etc.), a light blocking member (e.g., a light reflecting layer, a light absorbing layer, etc.), and / or a protective member (e.g., an insulating layer, a dielectric layer, etc.).

[0724] Electronic devices

[0725] The light emitting device may be included in one or more suitable electronic devices. For example, the electronic device including the light emitting device may be a light emitting device, a verification device, etc.

[0726] In addition to the light-emitting device, the electronic device (e.g., a light-emitting device) may further include: i) a color filter, ii) a color conversion layer, or iii) a color filter and a color conversion layer. The color filter and / or the color conversion layer may be arranged in at least one direction of travel of the light emitted from the light-emitting device. For example, the light emitted from the light-emitting device may be blue light, green light, or white light. For more details about the light-emitting device, reference may be made to the description provided herein. In an embodiment, the color conversion layer may include quantum dots.

[0727] The electronic device may include a first substrate. The first substrate may include a plurality of sub-pixel regions, the color filter may include a plurality of color filter regions respectively corresponding to the sub-pixel regions, and the color conversion layer may include a plurality of color conversion regions respectively corresponding to the sub-pixel regions.

[0728] A pixel defining layer may be disposed between the sub-pixel regions to define each of the sub-pixel regions.

[0729] The color filter may further include a plurality of color filter regions and a light shielding pattern disposed between the color filter regions, and the color conversion layer may further include a plurality of color conversion regions and a light shielding pattern disposed between the color conversion regions.

[0730] A plurality of color filter regions (or a plurality of color conversion regions) may include a first region emitting a first color light, a second region emitting a second color light, and / or a third region emitting a third color light, wherein the first color light, the second color light, and / or the third color light may have different maximum emission wavelengths from each other. For example, the first color light may be red light, the second color light may be green light, and the third color light may be blue light. For example, a plurality of color filter regions (or a plurality of color conversion regions) may include quantum dots. In particular, the first region may include red quantum dots, the second region may include green quantum dots, and the third region may not include (e.g., may exclude) quantum dots. For details about quantum dots, reference may be made to the description provided herein. The first region, the second region, and / or the third region may each further include a scatterer.

[0731] For example, the light emitting device may be configured to emit a first light, the first region may be configured to absorb the first light to emit a first-first color light, the second region may be configured to absorb the first light to emit a second-first color light, and the third region may be configured to absorb the first light to emit a third-first color light. Here, the first-first color light, the second-first color light, and the third-first color light may have different maximum emission wavelengths. In particular, the first light may be blue light, the first-first color light may be red light, the second-first color light may be green light, and the third-first color light may be blue light.

[0732] In addition to the light emitting device described above, the electronic device may further include a thin film transistor. The thin film transistor may include a source electrode, a drain electrode and an active layer, wherein any one of the source electrode and the drain electrode may be electrically connected to any one of the first electrode and the second electrode of the light emitting device.

[0733] The thin film transistor may further include a gate electrode, a gate insulating film, and the like.

[0734] The active layer may include crystalline silicon, amorphous silicon, an organic semiconductor, an oxide semiconductor, or the like.

[0735] The electronic device may further include a sealing portion for sealing the light emitting device. The sealing portion may be arranged between the color filter and / or the color conversion layer and the light emitting device. The sealing portion allows light from the light emitting device to be led out to the outside, and in parallel (e.g., simultaneously) prevents ambient air and moisture from penetrating into the light emitting device. The sealing portion may be a sealing substrate including a transparent glass substrate or a plastic substrate. The sealing portion may be a thin film encapsulation layer including at least one of an organic layer and an inorganic layer. When the sealing portion is a thin film encapsulation layer, the electronic device may be flexible.

[0736] Depending on the purpose of the electronic device, in addition to the color filter and / or color conversion layer, various functional layers may be additionally arranged on the sealing portion. Examples of the functional layer may include a touch screen layer, a polarization layer, etc. The touch screen layer may be a pressure-sensitive touch screen layer, a capacitive touch screen layer, or an infrared touch screen layer. The verification device may be, for example, a biometric verification device that verifies an individual by using biometric information (e.g., fingertips, pupils, etc.) of a living being.

[0737] In addition to the light emitting device as described above, the authentication device may further include a biometric information collector.

[0738] The electronic device can be applied to one or more suitable displays, light sources, lighting, personal computers (e.g., mobile personal computers), mobile phones, digital cameras, electronic notepads, electronic dictionaries, electronic game consoles, medical instruments (e.g., electronic thermometers, blood pressure monitors, blood glucose meters, pulse measuring devices, pulse wave measuring devices, electrocardiogram displays, ultrasonic diagnostic devices or endoscope displays), fish finders, one or more suitable measuring instruments, meters (e.g., meters for vehicles, aircraft and ships), projectors, etc.

[0739] Electronic equipment

[0740] The light emitting device may be included in one or more than one suitable electronic equipment.

[0741] For example, the electronic equipment including the light emitting device can be a flat panel display, a curved display, a computer monitor, a medical monitor, a television, a billboard, a lamp and / or a signal lamp for indoor or outdoor lighting, a head-up display, a fully transparent or partially transparent display, a flexible display, a rollable display, a foldable display, a retractable display, a laser printer, a phone, a mobile phone, a tablet computer, a tablet phone, a personal digital assistant (PDA), a wearable device, a laptop computer, a digital camera, a camcorder, a viewfinder, a microdisplay, a 3D display, a virtual or augmented reality display, a vehicle, a video wall including multiple displays stitched together, a theater or stadium screen, a light therapy device and / or a sign.

[0742] Since the light emitting device has excellent or suitable effects in terms of light emitting efficiency and long lifespan, electronic equipment including the light emitting device may have characteristics of high brightness, high resolution, and low power consumption.

[0743] Figure 2 and Figure 3 Description

[0744] Figure 2 is a cross-sectional view showing a light emitting device as an example of the electronic device according to the embodiment.

[0745] Figure 2 The light emitting apparatus includes a substrate 100, a thin film transistor (TFT), a light emitting device, and an encapsulation part 300 sealing the light emitting device.

[0746] The substrate 100 may be a flexible substrate, a glass substrate, or a metal substrate. The buffer layer 210 may be disposed on the substrate 100. The buffer layer 210 may prevent or reduce impurities from penetrating through the substrate 100, and may provide a flat surface on the substrate 100.

[0747] The TFT may be disposed on the buffer layer 210. The TFT may include an active layer 220, a gate electrode 240, a source electrode 260, and a drain electrode 270.

[0748] The active layer 220 may include an inorganic semiconductor (eg, silicon or polysilicon), an organic semiconductor, or an oxide semiconductor, and may include a source region, a drain region, and a channel region.

[0749] A gate insulating film 230 for insulating the active layer 220 from the gate electrode 240 may be disposed on the active layer 220 , and the gate electrode 240 may be disposed on the gate insulating film 230 .

[0750] An interlayer insulating film 250 may be disposed on the gate electrode 240. The interlayer insulating film 250 may be disposed between the gate electrode 240 and the source electrode 260 and between the gate electrode 240 and the drain electrode 270 to be insulated from each other.

[0751] Source electrode 260 and drain electrode 270 may be disposed on interlayer insulating film 250. Interlayer insulating film 250 and gate insulating film 230 may be formed to expose source and drain regions of active layer 220, and source electrode 260 and drain electrode 270 may be disposed to contact exposed portions of the source and drain regions of active layer 220.

[0752] The TFT may be electrically connected to the light emitting device to drive the light emitting device, and may be covered and protected by the passivation layer 280. The passivation layer 280 may include an inorganic insulating film, an organic insulating film, or a combination thereof. A light emitting device may be provided on the passivation layer 280. The light emitting device may include a first electrode 110, an intermediate layer 130, and a second electrode 150.

[0753] The first electrode 110 may be disposed on the passivation layer 280. The passivation layer 280 may be disposed to expose a portion of the drain electrode 270 without completely covering the drain electrode 270, and the first electrode 110 may be disposed to be connected to the exposed portion of the drain electrode 270.

[0754] A pixel defining layer 290 including an insulating material may be located on the first electrode 110. The pixel defining layer 290 may expose a certain area of ​​the first electrode 110, and the intermediate layer 130 may be formed in the exposed area of ​​the first electrode 110. The pixel defining layer 290 may be an organic film based on polyimide or an organic film based on polyacrylic acid. In some embodiments, at least some layers of the intermediate layer 130 may extend beyond the upper portion of the pixel defining layer 290 to be arranged in the form of a common layer.

[0755] The second electrode 150 may be disposed on the intermediate layer 130, and a second capping layer 170 may be additionally formed on the second electrode 150. The second capping layer 170 may be formed to cover the second electrode 150.

[0756] The encapsulation part 300 may be disposed on the second cover layer 170. The encapsulation part 300 may be disposed on the light emitting device to protect the light emitting device from moisture or oxygen. The encapsulation part 300 may include an inorganic film including silicon nitride (SiN x ), silicon oxide (SiO x ), indium tin oxide, indium zinc oxide or a combination thereof; an organic film comprising polyethylene terephthalate, polyethylene naphthalate, polycarbonate, polyimide, polyvinyl sulfonate, polyoxymethylene, polyarylate, hexamethyldisiloxane, an acrylic-based resin (e.g., polymethyl methacrylate, polyacrylic acid, etc.), an epoxy-based resin (e.g., aliphatic glycidyl ether (AGE)), etc.) or a combination thereof; or a combination of an inorganic film and an organic film.

[0757] Figure 3 is a cross-sectional view of a light emitting device as an example of an electronic device according to another embodiment.

[0758] Figure 3 Light emitting devices and Figure 2 The light emitting device is the same as that of the embodiment, but the light shielding pattern 500 and the functional area 400 are additionally arranged on the encapsulation part 300. The functional area 400 may be i) a color filter area, ii) a color conversion area, or iii) a combination of a color filter area and a color conversion area. Figure 3 The light emitting devices in the light emitting apparatus may be series light emitting devices.

[0759] Figure 4 Description

[0760] Figure 41 is a schematic perspective view of an electronic equipment 1 including a light emitting device according to an embodiment. The electronic equipment 1 may be a portable electronic equipment as a device for displaying moving images or still images, such as a mobile phone, a smart phone, a tablet personal computer (PC), a mobile communication terminal, an electronic diary, an electronic book, a portable multimedia player (PMP), a navigation or ultra mobile PC (UMPC), and one or more suitable products, such as a television, a laptop, a monitor, a signboard or an Internet of Things (IoT) device. The electronic equipment 1 may be such a product or a component thereof. In some embodiments, the electronic equipment 1 may be a wearable device, such as a smart watch, a watch phone, a glasses-type or a class display or a head-mounted display (HMD), or a component of a wearable device. However, the embodiment is not limited thereto. For example, the electronic equipment 1 may include a dashboard of a vehicle, a center panel of a vehicle, a central information display arranged on the dashboard of a vehicle, an interior mirror display of a vehicle replacing a side mirror, an entertainment display for a rear seat of a vehicle, or a display arranged on the back of a front seat, or a head-up display (HUD) installed in front of the vehicle or projected on the front windshield, a computer-generated holographic augmented reality head-up display (CGH AR HUD). For ease of explanation, Figure 4 A case in which the electronic equipment 1 is a smartphone is exemplified.

[0761] The electronic equipment 1 may include a display area DA and a non-display area NDA outside the display area DA. The display device may realize an image through an array of a plurality of pixels two-dimensionally arranged in the display area DA.

[0762] The non-display area NDA may be an area where an image is not displayed, and may surround (e.g., completely surround) the display area DA. On the non-display area NDA, a driver for providing an electrical signal or power to a display device arranged on the display area DA may be arranged. On the non-display area NDA, a pad may be arranged, which is an area to which an electronic component or a printed circuit board may be electrically connected.

[0763] In the electronic device 1, the length in the x-axis direction and the length in the y-axis direction may be different from each other. Figure 4 , the length in the x-axis direction may be shorter than the length in the y-axis direction. In one or more embodiments, the length in the x-axis direction may be the same as the length in the y-axis direction. In one or more embodiments, the length in the x-axis direction may be longer than the length in the y-axis direction.

[0764] Figure 5 and FIG. 6A to FIG. 6C Description

[0765] Figure 5 is a schematic diagram of the exterior of a vehicle 1000 as electronic equipment including a light emitting device according to the embodiment. FIG. 6A to FIG. 6C Each is a schematic diagram of the interior of a vehicle 1000 according to one or more embodiments.

[0766] refer to Figure 5 , Fig. 6A , Figure 6B and Figure 6C The vehicle 1000 may refer to one or more suitable devices for moving a transported individual such as a person, an object, or an animal from a departure point to a destination point. The vehicle 1000 may include a vehicle traveling on roads or tracks, a ship moving on the sea or a river, and an airplane flying in the air using the action of air.

[0767] The vehicle 1000 may travel on a road or a track. The vehicle 1000 may move in a specific direction according to the rotation of at least one wheel. For example, the vehicle 1000 may include a three-wheeled or four-wheeled vehicle, a construction machine, a two-wheeled vehicle, a prime mover, a bicycle, and a train traveling on a track.

[0768] The vehicle 1000 may include a main body having an interior and an exterior, and a chassis in which mechanical equipment necessary for driving is installed as the remaining components other than the main body. The exterior of the main body may include a front plate, a bonnet, a top plate, a rear plate, a luggage compartment, and pillars provided at the boundaries between doors, etc. The chassis of the vehicle 1000 may include a power generation device, a power transmission device, a drive device, a steering device, a brake device, a suspension device, a transmission device, a fuel device, front and rear left and right wheels, etc.

[0769] The vehicle 1000 may include side windows 1100 , a front window 1200 , side mirrors 1300 , a cluster piece 1400 , a center panel 1500 , a passenger seat instrument panel 1600 , and a display device 2 .

[0770] The side window glass 1100 and the front window glass 1200 may be separated by pillars disposed between the side window glass 1100 and the front window glass 1200 .

[0771] The side window glass 1100 may be mounted on the side of the vehicle 1000. In an embodiment, the side window glass 1100 may be mounted on the door of the vehicle 1000. A plurality of side window glasses 1100 may be provided and may face each other. In an embodiment, the side window glass 1100 may include a first side window glass 1110 and a second side window glass 1120. In an embodiment, the first side window glass 1110 may be arranged adjacent to the cluster piece 1400. The second side window glass 1120 may be arranged adjacent to the passenger seat instrument panel 1600.

[0772] In an embodiment, the side window glass 1100 may be spaced apart from each other in the x direction or the -x direction. For example, the first side window glass 1110 and the second side window glass 1120 may be spaced apart from each other in the x direction or the -x direction. In other words, the virtual straight line L connecting the side window glass 1100 may extend in the x direction or the -x direction. For example, the virtual straight line L connecting the first side window glass 1110 and the second side window glass 1120 may extend in the x direction or the -x direction.

[0773] The front window glass 1200 may be installed at the front of the vehicle 1000. The front window glass 1200 may be disposed between the side window glasses 1100 facing each other.

[0774] The side view mirror 1300 can provide a rear view of the vehicle 1000. The side view mirror 1300 can be installed on the outside of the vehicle body. In one embodiment, a plurality of side view mirrors 1300 can be provided. Any one of the plurality of side view mirrors 1300 (e.g., selected from the plurality of side view mirrors 1300) can be arranged outside the first side window glass 1110. Another one of the plurality of side view mirrors 1300 can be arranged outside the second side window glass 1120.

[0775] Cluster piece 1400 may be arranged in front of the steering wheel. Cluster piece 1400 may include a tachometer, a speedometer, a coolant temperature gauge, a fuel gauge, a turn indicator, a high beam indicator, a warning light, a seat belt warning light, an odometer, a speedometer, an automatic transmission selector indicator light, a door open warning light, an oil warning light, and / or a low fuel warning light.

[0776] The center panel 1500 may include a control panel on which a plurality of buttons for adjusting an audio device, an air conditioning device, and a seat heater are provided. The center panel 1500 may be disposed on one side of the cluster piece 1400 .

[0777] The passenger seat instrument panel 1600 may be spaced apart from the cluster piece 1400 with the center panel 1500 disposed therebetween. In an embodiment, the cluster piece 1400 may be disposed to correspond to the driver's seat, and the passenger seat instrument panel 1600 may be disposed to correspond to the passenger seat. In an embodiment, the cluster piece 1400 may be adjacent to the first side window glass 1110, and the passenger seat instrument panel 1600 may be adjacent to the second side window glass 1120.

[0778] In an embodiment, the display device 2 may include a display panel 3, and the display panel 3 may display an image. The display device 2 may be arranged inside the vehicle 1000. In an embodiment, the display device 2 may be arranged between side window glasses 1100 facing each other. The display device 2 may be arranged on at least one of the cluster member 1400, the center panel 1500, and the passenger seat instrument panel 1600.

[0779] The display device 2 may include an organic light-emitting display device, an inorganic EL display device, a quantum dot display device, etc. Hereinafter, as the display device 2 according to the embodiment of the present disclosure, an organic light-emitting display device including a light-emitting device according to the present disclosure is described as an example, but one or more suitable types (kinds) of display devices as described above may be used in the embodiment of the present disclosure.

[0780] refer to Fig. 6A , the display device 2 may be arranged on the central panel 1500. In an embodiment, the display device 2 may display navigation information. In an embodiment, the display device 2 may display audio, video and / or information about vehicle settings.

[0781] refer to Figure 6B , the display device 2 may be arranged on the clusterware 1400. When the display device 2 is arranged on the clusterware 1400, the clusterware 1400 may display driving information and the like through the display device 2. For example, the clusterware 1400 may be implemented digitally. The clusterware 1400 may digitally display the vehicle information and the driving information as an image. For example, the needle and gauge of a tachometer and one or more suitable warning light icons may be displayed through digital signals.

[0782] refer to Figure 6C , the display device 2 may be arranged on the passenger seat instrument panel 1600. The display device 2 may be embedded in the passenger seat instrument panel 1600 or arranged on the passenger seat instrument panel 1600. In an embodiment, the display device 2 arranged on the passenger seat instrument panel 1600 may display images related to the information displayed on the cluster piece 1400 and / or the information displayed on the center panel 1500. In one or more embodiments, the display device 2 arranged on the passenger seat instrument panel 1600 may display information different from the information displayed on the cluster piece 1400 and / or the information displayed on the center panel 1500.

[0783] Manufacturing method

[0784] The layer constituting the hole transport region, the emission layer, and the layer constituting the electron transport region can be formed in a specific region by using one or more suitable methods (e.g., vacuum deposition, spin coating, casting, Langmuir-Blodgett (LB) deposition, inkjet printing, laser printing, laser induced thermal imaging, etc.).

[0785] When the layer constituting the hole transport region, the emission layer, and the layer constituting the electron transport region are formed by vacuum deposition, the deposition temperature may be about 100° C. to about 500° C., about 10 -8 About 10 -3 Torr vacuum and approx. to about Deposition is carried out at a deposition rate of .

[0786] Definition of terms

[0787] As used herein, the term "C 3 -C 60 A "carbocyclic group" refers to a cyclic group consisting only of carbon as a ring atom and having three to sixty carbon atoms (e.g., 3 to 30, 3 to 20, 3 to 15, or 3 to 10 carbon atoms), and the term "C 1 -C 60 The term "heterocyclic group" refers to a cyclic group having one to sixty carbon atoms (e.g., 1 to 30, 1 to 20, 1 to 15, or 1 to 10 carbon atoms) and further having a heteroatom other than carbon as a ring-forming atom. 3 -C 60 Carbocyclic groups and C 1 -C 60 The heterocyclic groups may each be a monocyclic group consisting of one ring or a polycyclic group in which two or more rings are fused to each other. 1 -C 60 The number of ring-forming atoms of the heterocyclic group may be 3 to 61 (eg, 3 to 30, 3 to 20, 3 to 15, or 3 to 10).

[0788] As used herein, a "cyclic group" may include C 3 -C 60 Carbocyclic groups and C 1 -C 60 Heterocyclic groups both (eg, simultaneously).

[0789] As used herein, the term "π-electron-rich C 3 -C 60"Cyclic group" refers to a cyclic group having 3 to 60 carbon atoms (e.g., 3 to 30, 3 to 20, 3 to 15, or 3 to 10 carbon atoms) and not containing *-N=*' as a ring-forming part, and the term "π-electron-deficient nitrogen-containing C 1 -C 60 The term "heterocyclic group" refers to a heterocyclic group having 1 to 60 carbon atoms (eg, 1 to 30, 1 to 20, 1 to 15, or 1 to 10 carbon atoms) and containing *-N=*' as a ring-forming portion.

[0790] For example,

[0791] C 3 -C 60 The carbocyclic group may be i) a group T1 or ii) a fused cyclic group in which two or more groups T1 are fused to each other (e.g., a cyclopentadiene group, an adamantane group, a norbornane group, a phenyl group, a pentalene group, a naphthalene group, an azulene group, an indacene group, an acenaphthylene group, a phenanthrenyl group, an anthracene group, a fluoranthene group, a triphenylene group, a pyrene group, a benzophenone group, a fluorene group, a spiro-bifluorene group, a benzofluorene group, an indenophenanthrene group or an indenoanthracene group),

[0792] C 1 -C 60The heterocyclic group may be i) a group T2, ii) a fused cyclic group in which two or more groups T2 are fused to each other, or iii) a fused cyclic group in which at least one group T2 and at least one group T1 are fused to each other (e.g., a pyrrole group, a thiophene group, a furan group, an indole group, a benzindole group, a naphthoindole group, an isoindole group, a benzisoindole group, a naphthoisoindole group, a benzosilole group, a benzo Thiophene group, benzofuran group, carbazole group, dibenzosilole group, dibenzothiophene group, dibenzofuran group, indenocarbazole group, indolecarbazole group, benzofurancarbazole group, benzothiophenecarbazole group, benzosilolecarbazole group, benzoindolecarbazole group, benzocarbazole group, benzonaphthofuran group, benzonaphthothiophene group, benzonaphthosilole group, benzofurandibenzofuran group, benzofurandibenzofuran group benzothiophene group, benzothienodibenzothiophene group, pyrazole group, imidazole group, triazole group, oxazole group, isoxazole group, oxadiazole group, thiazole group, isothiazole group, thiadiazole group, benzopyrazole group, benzimidazole group, benzoxazole group, benzisoxazole group, benzothiazole group, benzisothiazole group, pyridine group, pyrimidine group, pyrazine group, pyridazine group, triazine group, quinoline group, isoquinoline group, benzoquinoline group, benzoisoquinoline group, quinoxaline group, benzoquinoxaline group, quinazoline group, benzoquinazoline group, phenanthroline group, cinnoline group, phthalazine group, naphthyridine group, imidazopyridine group, imidazopyrimidine group, imidazotriazine group, imidazopyrazine group, imidazopyridazine group, azacarbazole group, azafluorene group, azadibenzosilole group, azadibenzothiophene group, azadibenzofuran group, etc.),

[0793] Pi-electron-rich C 3 -C 60 The cyclic group may be i) a group T1, ii) a fused cyclic group in which two or more groups T1 are fused to each other, iii) a group T3, iv) a fused cyclic group in which two or more groups T3 are fused to each other, or v) a fused cyclic group in which at least one group T3 and at least one group T1 are fused to each other (e.g., C 3 -C 60a carbocyclic group, a 1H-pyrrole group, a thiol group, a borole group, a 2H-pyrrole group, a 3H-pyrrole group, a thiophene group, a furan group, an indole group, a benzoindole group, a naphthoindole group, an isoindole group, a benzoisoindole group, a naphthoisoindole group, a benzothiol group, a benzothiophene group, a benzofuran group, a carbazole group, a dibenzothiol group, a dibenzothiophene group, a dibenzofuran group, an indenocarbazole group, an indolecarbazole group, a benzofuranocarbazole group, a benzothiophenocarbazole group, a benzothioylcarbazole group, a benzoindolecarbazole group, a benzocarbazole group, a benzonaphthofuran group, a benzonaphthothiophene group, a benzonaphthothiol group, a benzofuranodibenzofuran group, a benzofuranodibenzothiophene group, a benzothiophenodibenzothiophene group, and the like),

[0794] π-electron-deficient nitrogen-containing C 1 -C 60 The heterocyclic group may be i) a group T4, ii) a fused cyclic group in which two or more groups T4 are fused to each other, iii) a fused cyclic group in which at least one group T4 and at least one group T1 are fused to each other, iv) a fused cyclic group in which at least one group T4 and at least one group T3 are fused to each other, or v) a fused cyclic group in which at least one group T4, at least one group T1 and at least one group T3 are fused to each other (e.g., a pyrazole group, an imidazole group, a triazole group, an oxazole group, an isoxazole group, an oxadiazole group, a thiazole group, an isothiazole group, a thiadiazole group, a benzopyrazole group, a benzimidazole group, a azole group, benzoxazole group, benzisoxazole group, benzothiazole group, benzisothiazole group, pyridine group, pyrimidine group, pyrazine group, pyridazine group, triazine group, quinoline group, isoquinoline group, benzoquinoline group, benzisoquinoline group, quinoxaline group, benzoquinoxaline group, quinazoline group, benzoquinazoline group, phenanthroline group, cinnoline group, phthalazine group, naphthyridine group, imidazopyridine group, imidazopyrimidine group, imidazotriazine group, imidazopyrazine group, imidazopyridazine group, azacarbazole group, azafluorene group, azadibenzosilole group, azadibenzothiophene group, azadibenzofuran group, etc.),

[0795] The group T1 can be a cyclopropane group, a cyclobutane group, a cyclopentane group, a cyclohexane group, a cycloheptane group, a cyclooctane group, a cyclobutene group, a cyclopentene group, a cyclopentadiene group, a cyclohexene group, a cyclohexadiene group, a cycloheptene group, an adamantane group, a norbornane (or bicyclo[2.2.1]heptane) group, a norbornene group, a bicyclo[1.1.1]pentane group, a bicyclo[2.1.1]hexane group, a bicyclo[2.2.2]octane group or a phenyl group,

[0796] The group T2 can be a furan group, a thiophene group, a 1H-pyrrole group, a thiol group, a borocyclopentadiene group, a 2H-pyrrole group, a 3H-pyrrole group, an imidazole group, a pyrazole group, a triazole group, a tetrazole group, an oxazole group, an isoxazole group, an oxadiazole group, a thiazole group, an isothiazole group, a thiadiazole group, an azathiol group, an azaborole group, a pyridine group, a pyrimidine group, a pyrazine group, a pyridazine group, a triazine group, a tetrazine group, a pyrrolidine group, an imidazolidinyl group, a dihydropyrrole group, a piperidine group, a tetrahydropyridine group, a dihydropyridine group, a hexahydropyrimidine group, a tetrahydropyrimidine group, a dihydropyrimidine group, a piperazine group, a tetrahydropyrazine group, a dihydropyrazine group, a tetrahydropyridazine group or a dihydropyridazine group,

[0797] The group T3 may be a furan group, a thiophene group, a 1H-pyrrole group, a thiol group or a borole group, and

[0798] The group T4 can be a 2H-pyrrole group, a 3H-pyrrole group, an imidazole group, a pyrazole group, a triazole group, a tetrazole group, an oxazole group, an isoxazole group, an oxadiazole group, a thiazole group, an isothiazole group, a thiadiazole group, an azathiazole group, an azaborole group, a pyridine group, a pyrimidine group, a pyrazine group, a pyridazine group, a triazine group or a tetrazine group.

[0799] As used herein, the term "cyclic group, C 3 -C 60 Carbocyclic group, C 1 -C 60 Heterocyclic groups, π-electron-rich C 3 -C 60 Cyclic groups or nitrogen-containing C with π-electron deficiency 1 -C 60 The “heterocyclic group” may refer to a group condensed with any cyclic group, a monovalent group, or a polyvalent group (e.g., a divalent group, a trivalent group, a tetravalent group, etc.) according to the structure of the formula using the corresponding term. For example, a “phenyl group” may be a benzo group, a phenyl group, a phenylene group, etc., which may be easily understood by a person of ordinary skill in the art based on the structure of the formula including the “phenyl group”.

[0800] Unit Price C 3 -C 60 Carbocyclic groups and monovalent C 1 -C 60 An example of a heterocyclic group is C 3 -C 10 Cycloalkyl groups, C 1 -C 10 Heterocycloalkyl group, C 3 -C 10 Cycloalkenyl group, C 1 -C10 Heterocycloalkenyl group, C 6 -C 60 Aryl group, C 1 -C 60 Heteroaryl groups, monovalent non-aromatic fused polycyclic groups and monovalent non-aromatic fused heteropolycyclic groups. 3 -C 60 Carbocyclic groups and divalent C 1 -C 60 An example of a heterocyclic group is C 3 -C 10 Cycloalkylene group, C 1 -C 10 Heterocycloalkylene group, C 3 -C 10 Cycloalkenylene group, C 1 -C 10 Heterocycloalkenylene group, C 6 -C 60 Arylene group, C 1 -C 60 heteroarylene group, a divalent non-aromatic condensed polycyclic group and a divalent non-aromatic condensed heteropolycyclic group.

[0801] As used herein, the term "C 1 -C 60 The “alkyl group” refers to a straight or branched aliphatic hydrocarbon monovalent group having one to sixty carbon atoms (e.g., 1 to 30, 1 to 20, 1 to 15, or 1 to 10 carbon atoms), and specific examples thereof are a methyl group, an ethyl group, an n-propyl group, an isopropyl group, an n-butyl group, a sec-butyl group, an isobutyl group, a tert-butyl group, an n-pentyl group, a tert-pentyl group, a neopentyl group, an isopentyl group, a sec-pentyl group, a 3-pentyl group, a sec-isopentyl group, an n-hexyl group, an isohexyl group, a sec-hexyl group, a tert-hexyl group, an n-heptyl group, an isoheptyl group, a sec-heptyl group, a tert-heptyl group, an n-octyl group, an isooctyl group, a sec-octyl group, a tert-octyl group, an n-nonyl group, an isononyl group, a sec-nonyl group, a tert-nonyl group, an n-decyl group, an isodecyl group, a sec-decyl group, and a tert-decyl group. As used herein, the term “C 1 -C 60 "Alkylene group" refers to a group having 1 -C 60 A divalent group of the same structure as an alkyl group.

[0802] As used herein, the term "C 2 -C 60 "Alkenyl group" means a 2 -C 60The alkyl group is a monovalent hydrocarbon group having at least one carbon-carbon double bond in the middle or at the terminal, and examples thereof are a vinyl group, a propenyl group, a butenyl group, and the like. The term “C 2 -C 60 "Alkenylene group" refers to a 2 -C 60 Alkenyl groups are divalent groups of the same structure.

[0803] As used herein, the term "C 2 -C 60 "Alkynyl group" means a 2 -C 60 The term "C" as used herein refers to a monovalent hydrocarbon group having at least one carbon-carbon triple bond in the middle or at the terminal of the alkyl group, and examples thereof are an ethynyl group, a propynyl group, and the like. 2 -C 60 "Alkyne group" refers to a 2 -C 60 Alkynyl groups are divalent groups of the same structure.

[0804] As used herein, the term "C 1 -C 60 "Alkoxy group" refers to a group consisting of -OA 101 (A 101 It is C 1 -C 60 The invention further comprises a monovalent group represented by an alkyl group, and examples thereof are a methoxy group, an ethoxy group, an isopropoxy group, and the like.

[0805] As used herein, the term "C 3 -C 10 The term "cycloalkyl group" refers to a monovalent saturated hydrocarbon ring group having 3 to 10 carbon atoms, and examples thereof are a cyclopropyl group, a cyclobutyl group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, an adamantyl group, a norbornyl group (or a bicyclo[2.2.1]heptyl group), a bicyclo[1.1.1]pentyl group, a bicyclo[2.1.1]hexyl group, a bicyclo[2.2.2]octyl group, and the like. As used herein, the term "C 3 -C 10 "Cycloalkylene group" refers to a group having a 3 -C 10 Cycloalkyl groups are divalent groups of the same structure.

[0806] As used herein, the term "C 1 -C 10The term "heterocycloalkyl group" refers to a monovalent cyclic group of 1 to 10 carbon atoms further containing at least one heteroatom other than carbon atoms as a ring-forming atom, and examples thereof are a 1,2,3,4-oxatriazolidinyl group, a tetrahydrofuranyl group, a tetrahydrothienyl group, and the like. As used herein, the term "C 1 -C 10 The term "heterocycloalkylene group" refers to a 1 -C 10 Heterocycloalkyl groups are divalent groups of the same structure.

[0807] As used herein, the term C 3 -C 10 The cycloalkenyl group refers to a monovalent cyclic group having three to ten carbon atoms and at least one carbon-carbon double bond in its ring and having no aromaticity, and examples thereof are a cyclopentenyl group, a cyclohexenyl group, a cycloheptenyl group, and the like. The term “C 3 -C 10 "Cycloalkenylene group" refers to a group having a 3 -C 10 Cycloalkenyl groups are divalent groups of the same structure.

[0808] As used herein, the term "C 1 -C 10 The term "heterocycloalkenyl group" refers to a monovalent cyclic group of 1 to 10 carbon atoms which further contains at least one heteroatom other than carbon atoms as a ring-forming atom in its cyclic structure and has at least one double bond. 1 -C 10 Examples of heterocycloalkenyl groups are 4,5-dihydro-1,2,3,4-oxatriazolyl groups, 2,3-dihydrofuranyl groups, 2,3-dihydrothienyl groups, and the like. 1 -C 10 The term "heterocycloalkenylene group" refers to a 1 -C 10 Heterocycloalkenyl groups are divalent groups of the same structure.

[0809] As used herein, the term "C 6 -C 60 "Aryl group" refers to a monovalent group having a carbocyclic aromatic system containing 6 to 60 carbon atoms (e.g., 6 to 30, 6 to 20, 6 to 15, or 6 to 10 carbon atoms), and the term "C 6 -C 60 The term "arylene group" refers to a divalent group having a carbocyclic aromatic system containing 6 to 60 carbon atoms (e.g., 6 to 30, 6 to 20, 6 to 15, or 6 to 10 carbon atoms). 6 -C60 Examples of aryl groups are phenyl groups, pentalenyl groups, naphthyl groups, azulenyl groups, indacenyl groups, acenaphthenyl groups, phenanthrenyl groups, anthracenyl groups, fluoranthenyl groups, triphenylenyl groups, pyrenyl groups, The phenyl group includes a phenyl group, a peryl group, a pentaphenyl group, a heptaphenyl group, a tetraphenyl group, a peryl group, a hexaphenyl group, a pentacene group, a rubidinyl group, a coronet group, an ovaphenyl group, and the like. 6 -C 60 Aryl groups and C 6 -C 60 When the arylene groups each include two or more rings, the rings may be fused to each other.

[0810] As used herein, the term "C 1 -C 60 The term "heteroaryl group" refers to a monovalent group having a heterocyclic aromatic system of 1 to 60 carbon atoms (e.g., 1 to 30, 1 to 20, 1 to 15, or 1 to 10 carbon atoms) further containing at least one heteroatom other than carbon atoms as a ring-forming atom. As used herein, the term "C 1 -C 60 The term "heteroarylene group" refers to a divalent group having a heterocyclic aromatic system of 1 to 60 carbon atoms (e.g., 1 to 30, 1 to 20, 1 to 15, or 1 to 10 carbon atoms) further including at least one heteroatom other than carbon atoms as a ring-forming atom. 1 -C 60 Examples of heteroaryl groups are pyridyl groups, pyrimidinyl groups, pyrazinyl groups, pyridazinyl groups, triazinyl groups, quinolyl groups, benzoquinolyl groups, isoquinolyl groups, benzoisoquinolyl groups, quinoxalinyl groups, benzoquinoxalinyl groups, quinazolinyl groups, benzoquinazolinyl groups, cinnolinyl groups, phenanthrolinyl groups, phthalazinyl groups and naphthyridinyl groups. 1 -C 60 Heteroaryl groups and C 1 -C 60 When the heteroarylene groups each include two or more rings, the rings may be fused to each other.

[0811] As used herein, the term "monovalent non-aromatic fused polycyclic group" refers to a monovalent group (e.g., having 8 to 60 carbon atoms, e.g., 8 to 30, 8 to 20, 8 to 15, or 8 to 10 carbon atoms) having two or more rings fused to each other, only carbon atoms as ring atoms, and no aromaticity in its entire molecular structure. Examples of monovalent non-aromatic fused polycyclic groups are indenyl groups, fluorenyl groups, spiro-bifluorenyl groups, benzofluorenyl groups, indenophenanthryl groups, indenoanthryl groups, and the like. As used herein, the term "divalent non-aromatic fused polycyclic group" refers to a divalent group having the same structure as the monovalent non-aromatic fused polycyclic group described above.

[0812] The term “monovalent non-aromatic fused heteropolycyclic group” as used herein refers to a monovalent group (e.g., having 1 to 60 carbon atoms, e.g., 1 to 30, 1 to 20, 1 to 15, or 1 to 10 carbon atoms) having two or more rings fused to each other, further containing at least one heteroatom other than a carbon atom as a ring-forming atom and having no aromaticity in its entire molecular structure. Examples of the monovalent non-aromatic condensed heteropolycyclic group include a pyrrolyl group, a thienyl group, a furanyl group, an indolyl group, a benzindolyl group, a naphthoindolyl group, an isoindolyl group, a benzisoindolyl group, a naphthoisoindolyl group, a benzothiorolyl group, a benzothiophenyl group, a benzofuranyl group, a carbazolyl group, a dibenzothiorolyl group, a dibenzothiophenyl group, a dibenzofuranyl group, an azacarbazolyl group, an azafluorenyl group, an azadibenzothiorolyl group, an azadibenzothiophenyl group, an azadibenzofuranyl group, a pyrazolyl group, an imidazolyl group, a triazolyl group, a tetrazolyl group, an oxazolyl group, an isoxazolyl group, a thiazolyl group, an isothiazolyl group, an oxadiazolyl group , thiadiazolyl group, benzopyrazolyl group, benzimidazolyl group, benzoxazolyl group, benzothiazolyl group, benzoxadiazolyl group, benzothiadiazolyl group, imidazopyridinyl group, imidazopyrimidinyl group, imidazotriazine group, imidazopyrazinyl group, imidazopyridazinyl group, indenocarbazolyl group, indolecarbazolyl group, benzofuranocarbazolyl group, benzothiophenocarbazolyl group, benzothiorrolocarbazolyl group, benzoindolecarbazolyl group, benzocarbazolyl group, benzonaphthofuranyl group, benzonaphthothiophenyl group, benzonaphthothiophenyl group, benzonaphthothiophenyl group, benzofuranodibenzofuranyl group, benzofuranodibenzothiophenyl group and benzothiophenylodibenzothiophenyl group. The term "divalent non-aromatic condensed heteropolycyclic group" as used herein refers to a divalent group having the same structure as the monovalent non-aromatic condensed heteropolycyclic group described above.

[0813] As used herein, the term "C 6 -C60 "Aryloxy group" means -OA 102 (A 102 It is C 6 -C 60 aryl group), and as used herein, the term "C 6 -C 60 "Arylthio group" means -SA 103 (A 103 It is C 6 -C 60 aryl group).

[0814] As used herein, the term "C 7 -C 60 "Arylalkyl group" refers to -A 104 A 105 (A 104 It is C 1 -C 54 An alkylene group, and A 105 It is C 6 -C 59 aryl group), and as used herein, the term "C 2 -C 60 A "heteroarylalkyl group" refers to an -A 106 A 107 (A 106 It is C 1 -C 59 An alkylene group, and A 107 It is C 1 -C 59 heteroaryl group).

[0815] As used herein, the term "R 10a " can be:

[0816] deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group or a nitro group;

[0817] Each is unsubstituted or substituted with deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, C 3 -C 60 Carbocyclic group, C 1 -C 60 Heterocyclic group, C 6 -C 60 Aryloxy group, C 6 -C 60 Arylthio group, C 7 -C 60 Arylalkyl group, C 2 -C 60 Heteroarylalkyl groups, -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 a combination thereof substituted C 1 -C 60 Alkyl group, C 2 -C 60 Alkenyl group, C 2 -C 60 Alkynyl group or C 1 -C 60 Alkoxy groups;

[0818] Each is unsubstituted or substituted with deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, C 1 -C 60 Alkyl group, C 2 -C 60 Alkenyl group, C 2 -C 60 Alkynyl group, C 1 -C 60 Alkoxy groups, C 3 -C 60 Carbocyclic group, C 1 -C 60 Heterocyclic group, C 6 -C 60 Aryloxy group, C 6 -C 60 Arylthio group, C 7 -C 60 Arylalkyl group, C 2 -C 60 Heteroarylalkyl groups, -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 a combination thereof substituted C 3 -C60 Carbocyclic group, C 1 -C 60 Heterocyclic group, C 6 -C 60 Aryloxy group, C 6 -C 60 Arylthio group, C 7 -C 60 Arylalkyl group or C 2 -C 60 a heteroarylalkyl group; or

[0819] -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 ).

[0820] The Q 1 To Q 3 , Q 11 To Q 13 , Q 21 To Q 23 and Q 31 To Q 33 can each independently be: hydrogen; deuterium; -F; -Cl; -Br; -I; a hydroxyl group; a cyano group; a nitro group; C 1 -C 60 Alkyl group; C 2 -C 60 Alkenyl group; C 2 -C 60 Alkynyl group; C 1 -C 60 alkoxy groups; each unsubstituted or deuterated, -F, cyano groups, C 1 -C 60 Alkyl group, C 1 -C 60 C substituted with an alkoxy group, a phenyl group, a biphenyl group or a combination thereof 3 -C 60 Carbocyclic group or C 1 -C 60 Heterocyclic group; C 7 -C 60 Arylalkyl group; or C 2 -C60 Heteroarylalkyl groups.

[0821] The term "heteroatom" as used herein refers to any atom other than a carbon atom, and the number of the heteroatom may be 1 to 10, for example 1, 2, 3, 4 or 5. Examples of heteroatoms are O, S, N, P, Si, B, Ge, Se, and combinations thereof.

[0822] The term "transition metal" as used herein includes Hf, Ta, W, Re, Os, Ir, Pt, Au, and the like.

[0823] As used herein, "Ph" refers to a phenyl group, as used herein, "Me" refers to a methyl group, as used herein, "Et" refers to an ethyl group, as used herein, "tert-Bu" or "Bu" refers to an ethyl group. t " refers to a tert-butyl group, and "OMe" as used herein refers to a methoxy group.

[0824] As used herein, the term "biphenyl group" refers to a "phenyl group substituted by a phenyl group". In other words, the "biphenyl group" may be a 6 -C 60 Aryl groups are substituted phenyl groups as substituents.

[0825] As used herein, the term "terphenyl group" refers to a "phenyl group substituted by a biphenyl group". In other words, the "terphenyl group" may be a phenyl group substituted by a C 6 -C 60 Aryl-substituted C 6 -C 60 Aryl groups are substituted phenyl groups as substituents.

[0826] Unless otherwise defined, * and *' as used herein each refer to a binding site to an adjacent atom in the corresponding formula or moiety.

[0827] In the specification, the x-axis, y-axis, and z-axis are not limited to the three axes in the orthogonal coordinate system, and can be interpreted in a broad sense including these axes. For example, the x-axis, y-axis, and z-axis can refer to those that are orthogonal to each other, or can refer to those in different directions that are not orthogonal to each other.

[0828] Hereinafter, the compound according to the embodiment and the light-emitting device according to the embodiment will be described in more detail with reference to the following synthesis examples and examples. The phrase "using B instead of A" used to describe the synthesis examples means that B is substituted for A with an equimolar equivalent.

[0829] Example

[0830] Synthesis Example 1: Synthesis of Compound 8

[0831]

[0832] 1) Synthesis of intermediate 8-A

[0833] 1-Bromo-4-methoxy-2-nitrobenzene (1.0 equivalent), 9,9'-spirobi[fluorene]-3-ylboronic acid (1.5 equivalent), Pd(PPh 3 ) 4 (0.05 equivalent) and K 2 CO 3 (2.0 equiv.) suspended in THF / H 2 O (4: 1, 0.1M). The reaction mixture is heated to a temperature of about 80 ° C and stirred for about 12 hours. After the reaction is completed, the solvent is removed under reduced pressure, and an extraction process is carried out using dichloromethane. The organic layer thus extracted is washed with a saturated NaCl aqueous solution and dried over magnesium sulfate. The residue after the removal of the solvent is separated using column chromatography to obtain intermediate [8-A] (yield of about 73%).

[0834] 2) Synthesis of intermediate 8-B

[0835] Intermediate [8-A] (1.0 equivalent) and PPh 3 [8-B] (about 46% yield).

[0836] 3) Synthesis of intermediate 8-C

[0837] Intermediate [8-B] (1.0 equivalent), 2-bromo-4-(tert-butyl)pyridine (1.5 equivalent), CuI (0.3 equivalent), trans-1,2-diaminocyclohexane (0.3 equivalent) and K 3 PO 4 (2.0 equivalents) are placed in a reaction vessel and suspended in 1,4-dioxane (0.1M). The reaction mixture is heated to a temperature of about 120°C and stirred for about 12 hours. After the reaction is complete, the reaction product is cooled to room temperature, and an extraction process is performed using distilled water and dichloromethane. The organic layer thus extracted is washed with a saturated NaCl aqueous solution and dried over magnesium sulfate. The residue after the removal of the solvent is separated using column chromatography to obtain intermediate [8-C] (approximately 82% yield).

[0838] 4) Synthesis of intermediate 8-D

[0839] Intermediate [8-C] (1.0 equiv.) was placed in a reaction vessel and suspended in dichloromethane (0.15 M). 1.0 M BBr 3 The dichloromethane (2.0 equivalents) of 1% chloroform (2.0 equivalents) was slowly added dropwise to the reaction vessel. After dropwise addition, the resulting solution was stirred at room temperature for about 12 hours. After the reaction was completed by pouring excessive distilled water, the aqueous layer was neutralized with NaOH, and the extraction process was carried out with distilled water and dichloromethane. The organic layer thus extracted was dried over magnesium sulfate, and the residue after the removal of the solvent was separated using column chromatography to obtain intermediate [8-D] (approximately 73% yield).

[0840] 5) Synthesis of intermediate 8-E

[0841] Intermediate [8-D] (1.0 equiv), 1-(3-bromophenyl)-1H-benzo[d]imidazole (1.2 equiv), CuI (0.1 equiv), 2-picolinic acid (0.2 equiv) and K 3 PO 4 [8-E] (2.0 equivalents) was placed in a reaction vessel and suspended in DMSO (0.15M). The reaction mixture was heated to a temperature of about 100°C and stirred for about 12 hours. After the reaction was complete, the reaction product was cooled to room temperature, and an extraction process was performed using distilled water and dichloromethane. The organic layer thus extracted was washed with a saturated NaCl aqueous solution, and dried over magnesium sulfate. The residue after the removal of the solvent was separated using column chromatography to obtain intermediate [8-E] (approximately 78% yield).

[0842] 6) Synthesis of intermediate 8-F

[0843] Intermediate [8-E] (1.0 equiv.) and iodomethane-d 3 (10.0 equivalents) were placed in a reaction vessel and suspended in toluene (0.1M). The reaction mixture was heated to a temperature of about 110°C and stirred for about 12 hours. Once the reaction was complete, the mixture was cooled to room temperature and subjected to an extraction process using distilled water and ethyl acetate. The organic layer extracted was dried over magnesium sulfate and the solvent was removed to obtain intermediate [8-F] (approximately 82% yield).

[0844] 7) Synthesis of intermediate 8-G

[0845] The intermediate [8-F] (1.0 equivalent) is placed in a reaction vessel and suspended in a mixed solution of methanol and distilled water at 2:1 (volume ratio). In a fully dissolved state, ammonium hexafluorophosphate (3.0 equivalent) is slowly added to the mixed solution, and the reaction solution is stirred at room temperature for about 12 hours. After the reaction is completed, the solid produced is filtered. The obtained solid is dissolved in dichloromethane, dried with magnesium sulfate, and the solvent is removed to obtain the intermediate [8-G] (yield of about 96%).

[0846] 8) Synthesis of Compound 8

[0847] Intermediate [8-G] (1.0 equivalent), dichloro (1,5-cyclooctadiene) platinum (1.1 equivalent) and sodium acetate (3.0 equivalent) were suspended in 1,4-dioxane (0.1M). The reaction mixture was heated to a temperature of about 120°C and stirred for 72 hours. Once the reaction was complete, the mixture was cooled to room temperature and subjected to an extraction process using distilled water and ethyl acetate. The organic layer thus extracted was washed with a saturated NaCl aqueous solution and dried over magnesium sulfate. The residue after the solvent was removed was separated using column chromatography to obtain compound 8 (28% yield).

[0848] Synthesis Example 2: Synthesis of Compound 23

[0849]

[0850]

[0851] 1) Synthesis of Intermediate 23-A

[0852] 2,6-dibromo-4-(tert-butyl)aniline (2.0 equivalents), (phenyl-d 5 )boric acid (1.0 equivalent), Pd(PPh 3 ) 4 (0.05 equivalent) and K 2 CO 3 (2.0 equiv.) suspended in THF / H 2 O (4: 1, 0.1M). The reaction mixture is heated to a temperature of about 80 ° C and stirred for about 12 hours. After the reaction is completed, the solvent is removed under reduced pressure, and an extraction process is carried out using dichloromethane. The organic layer thus extracted is washed with a saturated NaCl aqueous solution and dried over magnesium sulfate. The residue after the solvent is removed is separated using column chromatography to obtain intermediate [23-A] (approximately 69% yield).

[0853] 2) Synthesis of intermediate 23-B

[0854] Intermediate [23-A] (1.0 equivalent), (3,5-di-tert-butylphenyl)boronic acid (2.0 equivalent), Pd(PPh 3 ) 4 (0.05 equivalent) and K 2 CO 3 (2.0 equivalents) suspended in 1,4-dioxane / H 2 O (3: 1, 0.1M). The reaction mixture is heated to a temperature of about 100 ° C and stirred for about 12 hours. After the reaction is completed, the solvent is removed under reduced pressure, and an extraction process is carried out using dichloromethane. The organic layer thus extracted is washed with a saturated NaCl aqueous solution and dried over magnesium sulfate. The residue after the solvent is removed is separated using column chromatography to obtain intermediate [23-B] (approximately 84% yield).

[0855] 3) Synthesis of Intermediate 23-C

[0856] Intermediate [23-B] (1.0 equivalent), 1-bromo-2-nitrobenzene (1.3 equivalent), SPhos (0.07 equivalent), Pd 2 (dba) 3 [23-C] (about 85% yield).

[0857] 4) Synthesis of intermediate 23-D

[0858] Intermediate [23-C] (1.0 equivalent), tin (3.0 equivalent), HCl (5.0 equivalent) were suspended in ethanol (0.1M). The reaction mixture was heated to a temperature of about 80°C and stirred for about 12 hours. After the reaction was terminated, the reaction product was neutralized with NaOH in an ice bath, and an extraction process was performed using distilled water and dichloromethane. The organic layer thus extracted was washed with a saturated NaCl aqueous solution and dried over magnesium sulfate. The residue after the solvent was removed was separated using column chromatography to obtain intermediate [23-D] (about 90% yield).

[0859] 5) Synthesis of Intermediate 23-E

[0860] Intermediate [8-D] (1.0 equivalent), 1-bromo-3-fluorobenzene (2.0 equivalent) and K 3 PO 4[23-E] (2.0 equivalents) was suspended in DMF (0.1M). The reaction mixture was heated to a temperature of about 160°C and stirred for about 12 hours. After the reaction was complete, the solvent was removed under reduced pressure, and an extraction process was performed using dichloromethane. The organic layer thus extracted was washed with a saturated NaCl aqueous solution and dried over magnesium sulfate. The residue after the removal of the solvent was separated using column chromatography to obtain intermediate [23-E] (approximately 85% yield).

[0861] 6) Synthesis of Intermediate 23-F

[0862] Intermediate [23-D] (1.0 equivalent), intermediate [23-E] (1.2 equivalent), SPhos (0.07 equivalent), Pd 2 (dba) 3 [23-F] (about 83% yield).

[0863] 7) Synthesis of Intermediate 23-G

[0864] After the intermediate [23-F] (1.0 equivalent), triethyl orthoformate (50 equivalents) and HCl (1.2 equivalents) were dissolved, the reaction mixture was heated and stirred at about 80°C for about 12 hours. After the reaction was completed, the solvent was removed under reduced pressure, and an extraction process was performed using dichloromethane. The organic layer thus extracted was washed with a saturated NaCl aqueous solution and dried over magnesium sulfate. The residue after the solvent was removed was separated using column chromatography to obtain the intermediate [23-G] (yield of about 87%).

[0865] 8) Synthesis of intermediate 23-H

[0866] Intermediate [23-H] was obtained (92% yield) in substantially the same manner as used in the synthesis of intermediate [8-G], except that intermediate [23-G] was used instead of intermediate [8-F].

[0867] 9) Synthesis of Compound 23

[0868] Compound 23 was obtained (yield of about 34%) in substantially the same manner as in the Synthesis Example of Compound 8, except that Intermediate [23-H] was used instead of Intermediate [8-G].

[0869] Synthesis Example 3: Synthesis of Compound 29

[0870]

[0871]

[0872] 1) Synthesis of Intermediate 29-A

[0873] Intermediate [29-A] was obtained (about 65% yield) in essentially the same manner as used in the synthesis of intermediate [23-A], except that 2,6-dibromoaniline was used instead of 2,6-dibromo-4-(tert-butyl)aniline.

[0874] 2) Synthesis of intermediate 29-B

[0875] Intermediate [29-B] was obtained (about 82% yield) in substantially the same manner as used in the synthesis of intermediate [23-B], except that intermediate [29-A] was used instead of intermediate [23-A].

[0876] 3) Synthesis of Intermediate 29-C

[0877] Intermediate [29-C] was obtained (about 80% yield) in substantially the same manner as used in the synthesis of intermediate [23-C], except that intermediate [29-B] was used instead of intermediate [23-B].

[0878] 4) Synthesis of intermediate 29-D

[0879] Intermediate [29-D] was obtained (about 88% yield) in substantially the same manner as used in the synthesis of intermediate [23-D], except that intermediate [29-C] was used instead of intermediate [23-C].

[0880] 5) Synthesis of Intermediate 29-E

[0881] Intermediate [8-B] (1.0 equivalent), 2-fluoro-4-methyl-5-(phenyl-d 5 )pyridine (2.0 equiv.) and K 3 PO 4 [29-E] (2.0 equivalents) was placed in a reaction vessel and suspended in DMF (0.1M). The reaction mixture was heated to a temperature of about 160°C and stirred for about 12 hours. After the reaction was complete, the reaction product was cooled to room temperature, and distilled water and dichloromethane were used to extract it. The organic layer thus extracted was washed with a saturated NaCl aqueous solution, and dried over magnesium sulfate. The residue after the removal of the solvent was separated using column chromatography to obtain intermediate [29-E] (approximately 82% yield).

[0882] 6) Synthesis of Intermediate 29-F

[0883] Intermediate [29-E] (1.0 eq.) and KOtBu (0.2 eq.) were placed in a reaction vessel and suspended in DMSO-d 6 (0.5M). The reaction mixture was heated to a temperature of about 80°C to about 90°C and stirred for 6 hours. After the reaction was completed, the reaction product was cooled to room temperature and subjected to an extraction process using distilled water and dichloromethane. The organic layer thus extracted was washed with a saturated NaCl aqueous solution and dried over magnesium sulfate. The residue after the removal of the solvent was separated using column chromatography to obtain the intermediate [29-F] (approximately 90% yield).

[0884] 7) Synthesis of Intermediate 29-G

[0885] Intermediate [29-G] was obtained (about 78% yield) in substantially the same manner as for the synthesis of intermediate [8-D], except that intermediate [29-F] was used instead of intermediate [8-C].

[0886] 8) Synthesis of Intermediate 29-H

[0887] Intermediate [29-H] was obtained (about 81% yield) in essentially the same manner as used to synthesize intermediate [8-E], except that intermediate [29-G] was used instead of intermediate [8-D], and 1,3-dibromobenzene was used instead of 1-(3-bromophenyl)-1H-benzo[d]imidazole.

[0888] 9) Synthesis of Intermediate 29-I

[0889] Intermediate [29-I] was obtained (about 79% yield) in essentially the same manner as used to synthesize intermediate [23-F], but intermediate [29-D] was used instead of intermediate [23-D], and intermediate [29-H] was used instead of intermediate [23-E].

[0890] 10) Synthesis of Intermediate 29-J

[0891] Intermediate [29-J] was obtained (about 86% yield) in substantially the same manner as used to synthesize intermediate [23-G], except that intermediate [29-I] was used instead of intermediate [23-F].

[0892] 11) Synthesis of intermediate 29-K

[0893] Intermediate [29-K] was obtained (about 96% yield) in essentially the same manner as used to synthesize intermediate [23-H], but intermediate [29-J] was used instead of intermediate [23-G].

[0894] 12) Synthesis of Compound 29

[0895] Compound 29 was obtained (about 31% yield) in essentially the same manner as used to synthesize compound 8, but using intermediate [29-K] instead of intermediate [8-G].

[0896] Synthesis Example 4: Synthesis of Compound 118

[0897]

[0898] 1) Synthesis of Intermediate 118-A

[0899] Intermediate [118-A] was obtained (about 68% yield) in essentially the same manner as used for the synthesis of intermediate [8-A], except that (10,10-bis(methyl-d 3 )-10H-spiro[anthracene-9,9'-fluorene]-3'-yl)boronic acid instead of 9,9'-spirobi[fluorene]-3-ylboronic acid.

[0900] 2) Synthesis of Intermediate 118-B

[0901] Intermediate [118-B] was obtained (about 47% yield) in substantially the same manner as used to synthesize intermediate [8-B], except that intermediate [118-A] was used instead of intermediate [8-A].

[0902] 3) Synthesis of Intermediate 118-C

[0903] Intermediate [118-C] was obtained (yield about 76%) in substantially the same manner as for the synthesis of intermediate [8-C], except that intermediate [118-B] was used instead of intermediate [8-B].

[0904] 4) Synthesis of Intermediate 118-D

[0905] Intermediate [118-D] was obtained (yield about 72%) in substantially the same manner as for the synthesis of intermediate [8-D], except that intermediate [118-C] was used instead of intermediate [8-C].

[0906] 5) Synthesis of Intermediate 118-E

[0907] Intermediate [118-E] was obtained (about 79% yield) in essentially the same manner as used to synthesize intermediate [8-E], except that intermediate [118-D] was used instead of intermediate [8-D], and 1,3-dibromobenzene was used instead of 1-(3-bromophenyl)-1H-benzo[d]imidazole.

[0908] 6) Synthesis of Intermediate 118-F

[0909] Intermediate [118-F] was obtained (about 81% yield) in essentially the same manner as used to synthesize intermediate [23-F], but intermediate [29-D] was used instead of intermediate [23-D], and intermediate [118-E] was used instead of intermediate [23-E].

[0910] 7) Synthesis of Intermediate 118-G

[0911] Intermediate [118-G] was obtained (about 82% yield) in essentially the same manner as used to synthesize intermediate [23-G], except that intermediate [118-F] was used instead of intermediate [23-F].

[0912] 8) Synthesis of Intermediate 118-H

[0913] Intermediate [118-H] was obtained (about 94% yield) in essentially the same manner as used to synthesize intermediate [23-H], except that intermediate [118-G] was used instead of intermediate [23-G].

[0914] 9) Synthesis of Compound 118

[0915] Compound 118 was obtained (yield of about 34%) in substantially the same manner as in the Synthesis Example of Compound 8, except that Intermediate [118-H] was used instead of Intermediate [8-G].

[0916] The compounds synthesized according to the synthesis examples 1 H NMR and MS / FAB are shown in Table 1. Those skilled in the art can easily recognize methods for synthesizing compounds other than the compounds synthesized in the above synthesis examples by referring to the synthesis routes and starting materials.

[0917] Table 1

[0918]

[0919] Example 1

[0920] As an anode, it will have a value of about 15Ω / cm 2 A glass substrate (product of Corning Inc.) on which ITO was formed was cut into a size of about 50 mm x 50 mm x 0.7 mm, washed by ultrasonication using isopropyl alcohol and pure water for about 5 minutes each, irradiated with ultraviolet rays and exposed to ozone for about 30 minutes, and then fixed on a vacuum deposition apparatus.

[0921] 2-TNATA was vacuum deposited on the anode to form a A hole injection layer having a thickness of about 1000 Å was formed, and 4,4′-bis[N-(1-naphthyl)-N-phenylamino]biphenyl (hereinafter, referred to as “NPB”) was vacuum deposited on the hole injection layer to form a layer having a thickness of about 1000 Å. The hole transport layer has a thickness of .

[0922] Compound 8 (first compound), compound ETH66 (second compound) and compound HTH29 (third compound) were vacuum deposited on the hole transport layer to form a In this regard, the amount of compound 8 was adjusted to about 10 wt % based on the total weight (100 wt %) of the emission layer, and the weight ratio of compound ETH66 to compound HTH29 was adjusted to about 3:7.

[0923] The compound ETH2 was vacuum deposited on the emission layer to form a The thickness of the hole blocking layer is Alq 3 Vacuum deposition on the hole blocking layer to form a An electron transport layer having a thickness of about 1000 nm is formed, and LiF is vacuum deposited on the electron transport layer to form a An electron injection layer with a thickness of about 1000 nm was formed, and Al was then vacuum-deposited thereon to form an electron injection layer with a thickness of about 1000 nm. A cathode with a thickness of is formed, thereby completing the manufacture of the organic light-emitting device.

[0924]

[0925] Examples 2 to 4 and Comparative Examples 1 and 2

[0926] An organic light-emitting device was manufactured in substantially the same manner as in Example 1, but the compound was changed as shown in Table 2 when the emission layer was formed.

[0927] Evaluation Example 1

[0928] The organic light-emitting devices manufactured in Examples 1 to 4 and Comparative Examples 1 and 2 were measured using a Keithley MU 236 and a luminance meter PR650 at a brightness of about 1000 cd / m 2 The driving voltage (V), luminous efficiency (cd / A), emission color and maximum emission wavelength (nm) under the condition of . The results are shown in Table 2.

[0929] Table 2

[0930]

[0931]

[0932] As can be seen from Table 2, each of the organic light-emitting devices according to Examples 1 to 4 has excellent driving voltage and light-emitting efficiency compared with the organic light-emitting devices according to Comparative Examples 1 and 2.

[0933] By using the organic metal compound according to the present application, a light-emitting device having reduced driving voltage, improved color purity and luminous efficiency, and increased lifetime and a high-quality electronic device including the light-emitting device may be manufactured.

[0934] Any suitable hardware, firmware (e.g., application specific integrated circuit), software, or a combination of software, firmware and hardware can be used to implement the light emitting device, display device, electronic device, electronic equipment or any other related device or component according to the embodiments of the present disclosure described herein. For example, the various components of the device can be formed on an integrated circuit (IC) chip or on a separate IC chip. In addition, the various components of the device can be implemented on a flexible printed circuit film, a tape carrier package (TCP), a printed circuit board (PCB), or formed on a substrate. In addition, the various components of the device can be a process or thread that runs on one or more processors in one or more computing devices, executes computer program instructions and interacts with other system components for performing various functions described herein. The computer program instructions are stored in a memory, which can be implemented in a computing device using a standard memory device (such as a random access memory (RAM) as an example). The computer program instructions can also be stored in other non-temporary computer-readable media, such as a CD-ROM, a flash drive, etc. as an example. Furthermore, those skilled in the art will recognize that the functionality of various computing devices may be combined or integrated into a single computing device, or that the functionality of a particular computing device may be distributed across one or more other computing devices without departing from the scope of the embodiments of the present disclosure.

[0935] It should be understood that the embodiments described herein should be considered in a descriptive sense only, and not for limiting purposes. The description of the features or aspects in each embodiment should generally be considered to be applicable to other similar features or aspects in other embodiments. Although one or more than one embodiment has been described with reference to the accompanying drawings, it should be understood by those of ordinary skill in the art that one or more than one suitable changes in form and detail may be made herein without departing from the subject and scope defined by the appended claims and their equivalents.

Claims

1. A light-emitting device, comprising: a first electrode; a second electrode opposite to the first electrode and facing the first electrode; an intermediate layer disposed between the first electrode and the second electrode and including an emission layer; as well as An organometallic compound represented by Formula 1: Formula 1 Among them, in formula 1, M is platinum, palladium, copper, silver, gold, rhodium, ruthenium, osmium, titanium, zirconium, hafnium, europium, terbium or thulium, X1 to X4 are each independently C or N, Ring CY1, ring CY2 and ring CY4 are each independently C5-C 30 Carbocyclic group or C1-C 30 Heterocyclic groups, T1 is C, Si or Ge, L1 to L4 are each independently a single bond, *-C(R 1a )(R 1b )-*'、*-C(R 1a )=*'、*=C(R 1a )-*'、*-C(R 1a )=C(R 1b )-*', *-C(=O)-*', *-C(=S)-*', *-C≡C-*', *-B(R 1a )-*'、*-N(R 1a )-*'、*-O-*'、*-P(R 1a )-*'、*-Al(R 1a )-*、*-Si(R 1a )(R 1b )-*'、*-P(=O)(R 1a )-*', *-S-*', *-S(=O)-*', *-S(=O)2-*' or *-Ge(R 1a )(R 1b )-*', and * and *' are each a binding site with an adjacent atom, n1 to n4 are each independently an integer from 1 to 10, R1, R2, R 31 To R 35 , R4, R 1a and R 1b Each is independently hydrogen, deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, unsubstituted or substituted with at least one R 10a Substituted C1-C 60 Alkyl groups, unsubstituted or substituted with at least one R 10a Substituted C2-C 60 Alkenyl groups, unsubstituted or substituted with at least one R 10a Substituted C2-C 60 Alkynyl groups, unsubstituted or substituted with at least one R 10a Substituted C1-C 60 Alkoxy groups, unsubstituted or substituted with at least one R 10a Substituted C1-C 60 Alkylthio groups, unsubstituted or substituted with at least one R 10a Substituted C3-C 60 Carbocyclic group, unsubstituted or substituted with at least one R 10a Substituted C1-C 60 Heterocyclic group, unsubstituted or substituted with at least one R 10a Substituted C6-C 60 Aryloxy groups, unsubstituted or substituted with at least one R 10a Substituted C6-C 60 an arylthio group, -C(Q1)(Q2)(Q3), -Si(Q1)(Q2)(Q3), -N(Q1)(Q2), -B(Q1)(Q2), -C(═O)(Q1), -S(═O)2(Q1) or -P(═O)(Q1)(Q2), a1, a2 and a4 are each independently an integer from 1 to 20, a31 and a32 are each independently 1 or 2, a33 to a35 are each independently an integer of 1 to 4, and a1 R1, a2 R2, a31 R 31 、a32 R 32 、a33 R 33 、a34 R 34 、a35R 35 、a4R4、R 1a and R 1b Two or more adjacent groups in the formula (R) are optionally combined with each other to form an unsubstituted or substituted group. 10a Substituted C3-C 60 The carbocyclic group is either unsubstituted or substituted with at least one R 10a Substituted C1-C 60 Heterocyclic groups, R 10a yes: deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group or a nitro group; Each is unsubstituted or substituted with deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, a C3-C 60 Carbocyclic groups, C1-C 60 Heterocyclic group, C6-C 60 Aryloxy groups, C6-C 60 Arylthio group, -Si(Q 11 )(Q 12 )(Q 13 )、-N(Q 11 )(Q 12 )、-B(Q 11 )(Q 12 )、-C(=O)(Q 11 )、-S(=O)2(Q 11 )、-P(=O)(Q 11 )(Q 12 ) or a combination thereof substituted with C1-C 60 Alkyl groups, C2-C 60 Alkenyl groups, C2-C 60 Alkynyl group or C1-C 60 Alkoxy groups; Each is unsubstituted or substituted with deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, a C1-C 60 Alkyl groups, C2-C 60 Alkenyl groups, C2-C 60 Alkynyl group, C1-C 60 Alkoxy groups, C3-C 60 Carbocyclic groups, C1-C 60 Heterocyclic group, C6-C 60 Aryloxy groups, C6-C 60 Arylthio group, -Si(Q 21 )(Q 22 )(Q 23 )、-N(Q 21 )(Q 22 )、-B(Q 21 )(Q 22 )、-C(=O)(Q 21 )、-S(=O)2(Q 21 )、-P(=O)(Q 21 )(Q 22 ) or a combination thereof substituted C3-C 60 Carbocyclic groups, C1-C 60 Heterocyclic group, C6-C 60 Aryloxy group or C6-C 60 an arylthio group; or -Si(Q 31 )(Q 32 )(Q 33 )、-N(Q 31 )(Q 32 )、-B(Q 31 )(Q 32 )、-C(=O)(Q 31 )、-S(=O)2(Q 31 ) or -P(=O)(Q 31 )(Q 32 ), Q1 to Q3, Q 11 To Q 13 , Q 21 To Q 23 and Q 31 To Q 33 are independently: hydrogen; deuterium; -F; -Cl; -Br; -I; a hydroxyl group; a cyano group; a nitro group; C1-C 60 Alkyl group; C2-C 60 Alkenyl group; C2-C 60 Alkynyl group; C1-C 60 alkoxy groups; each of which is unsubstituted or substituted with deuterium, -F, cyano groups, C1-C 60 Alkyl groups, C1-C 60 C3-C4 substituted with an alkoxy group, a phenyl group, a biphenyl group or a combination thereof 60 Carbocyclic group or C1-C 60 Heterocyclic group.

2. The light emitting device according to claim 1, wherein The emission layer comprises a host and a dopant, and The dopant includes the organometallic compound.

3. The light emitting device according to claim 1, further comprising: Contains at least one nitrogen-containing C1-C 60 a second compound containing a heterocyclic group, a third compound containing a group represented by Formula 3, a fourth compound capable of emitting delayed fluorescence, or a combination thereof, The organometallic compound, the second compound, the third compound and the fourth compound are different from each other: Formula 3 In formula 3, Cyclo 71 and CY 72 Each is independently a π-electron-rich C3-C 60 a cyclic group or a pyridine group, X 71 is a single bond; or a linking group comprising O, S, N, B, C, Si or a combination thereof, and * represents a binding site with any atom included in the remaining parts except Formula 3 in the third compound.

4. The light emitting device according to claim 3, wherein The second compound comprises a pyridine group, a pyrimidine group, a pyrazine group, a pyridazine group, a triazine group or a combination thereof, and The fourth compound is a compound including at least one cyclic group containing boron and nitrogen each as a ring-constituting atom.

5. The light emitting device according to claim 3, wherein The emission layer comprises: i) the organometallic compound; and ii) the second compound, the third compound, the fourth compound, or a combination thereof, wherein the emission layer is configured to emit blue light.

6. An electronic device comprising the light emitting device according to any one of claims 1 to 5.

7. The electronic device as claimed in claim 6, further comprising Thin film transistors, where 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.

8. The electronic device as claimed in claim 6, further comprising Color filters, color conversion layers, touch screen layers, polarizing layers, or combinations thereof.

9. Electronic equipment comprising the light emitting device according to any one of claims 1 to 5.

10. The electronic device of claim 9, wherein The electronic equipment is 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 light, a head-up display, a fully transparent display, a partially transparent display, a flexible display, a rollable display, a foldable display, a retractable display, a laser printer, a phone, a portable phone, a tablet personal computer, a tablet phone, a personal digital assistant, a wearable device, a laptop computer, a digital camera, a video camera, a viewfinder, a microdisplay, a three-dimensional display, a virtual reality display, an augmented reality display, a vehicle, a video wall with multiple displays stitched together, a theater screen, a stadium screen, a light therapy device and a sign.

11. An organometallic compound represented by Formula 1: Formula 1 in, In formula 1, M is platinum, palladium, copper, silver, gold, rhodium, ruthenium, osmium, titanium, zirconium, hafnium, europium, terbium or thulium, X1 to X4 are each independently C or N, Ring CY1, ring CY2 and ring CY4 are each independently C5-C 30 Carbocyclic group or C1-C 30 Heterocyclic groups, T1 is C, Si or Ge, L1 to L4 are each independently a single bond, *-C(R 1a )(R 1b )-*'、*-C(R 1a )=*'、*=C(R 1a )-*'、*-C(R 1a )=C(R 1b )-*', *-C(=O)-*', *-C(=S)-*', *-C≡C-*', *-B(R 1a )-*'、*-N(R 1a )-*'、*-O-*'、*-P(R 1a )-*'、*-Al(R 1a )-*、*-Si(R 1a )(R 1b )-*'、*-P(=O)(R 1a )-*', *-S-*', *-S(=O)-*', *-S(=O)2-*' or *-Ge(R 1a )(R 1b )-*', and * and *' are each a binding site with an adjacent atom, n1 to n4 are each independently an integer from 1 to 10, R1, R2, R 31 To R 35 , R4, R 1a and R 1b Each is independently hydrogen, deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, unsubstituted or substituted with at least one R 10a Substituted C1-C 60 Alkyl groups, unsubstituted or substituted with at least one R 10a Substituted C2-C 60 Alkenyl groups, unsubstituted or substituted with at least one R 10a Substituted C2-C 60 Alkynyl groups, unsubstituted or substituted with at least one R 10a Substituted C1-C 60 Alkoxy groups, unsubstituted or substituted with at least one R 10a Substituted C1-C 60 Alkylthio groups, unsubstituted or substituted with at least one R 10a Substituted C3-C 60 Carbocyclic group, unsubstituted or substituted with at least one R 10a Substituted C1-C 60 Heterocyclic group, unsubstituted or substituted with at least one R 10a Substituted C6-C 60 Aryloxy groups, unsubstituted or substituted with at least one R 10a Substituted C6-C 60 an arylthio group, -C(Q1)(Q2)(Q3), -Si(Q1)(Q2)(Q3), -N(Q1)(Q2), -B(Q1)(Q2), -C(═O)(Q1), -S(═O)2(Q1) or -P(═O)(Q1)(Q2), a1, a2 and a4 are each independently an integer from 1 to 20, a31 and a32 are each independently 1 or 2, a33 to a35 are each independently an integer of 1 to 4, and a1 R1, a2 R2, a31 R 31 、a32 R 32 、a33 R 33 、a34 R 34 、a35R 35 、a4R4、R 1a and R 1b Two or more adjacent groups in the formula (R) are optionally combined with each other to form an unsubstituted or substituted group. 10a Substituted C3-C 60 The carbocyclic group is either unsubstituted or substituted with at least one R 10a Substituted C1-C 60 Heterocyclic groups, R 10a yes: deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group or a nitro group; Each is unsubstituted or substituted with deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, a C3-C 60 Carbocyclic groups, C1-C 60 Heterocyclic group, C6-C 60 Aryloxy groups, C6-C 60 Arylthio group, -Si(Q 11 )(Q 12 )(Q 13 )、-N(Q 11 )(Q 12 )、-B(Q 11 )(Q 12 )、-C(=O)(Q 11 )、-S(=O)2(Q 11 )、-P(=O)(Q 11 )(Q 12 ) or a combination thereof substituted with C1-C 60 Alkyl groups, C2-C 60 Alkenyl groups, C2-C 60 Alkynyl group or C1-C 60 Alkoxy groups; Each is unsubstituted or substituted with deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, a C1-C 60 Alkyl groups, C2-C 60 Alkenyl groups, C2-C 60 Alkynyl group, C1-C 60 Alkoxy groups, C3-C 60 Carbocyclic groups, C1-C 60 Heterocyclic group, C6-C 60 Aryloxy groups, C6-C 60 Arylthio group, -Si(Q 21 )(Q 22 )(Q 23 )、-N(Q 21 )(Q 22 )、-B(Q 21 )(Q 22 )、-C(=O)(Q 21 )、-S(=O)2(Q 21 )、-P(=O)(Q 21 )(Q 22 ) or a combination thereof substituted C3-C 60 Carbocyclic groups, C1-C 60 Heterocyclic group, C6-C 60 Aryloxy group or C6-C 60 an arylthio group; or -Si(Q 31 )(Q 32 )(Q 33 )、-N(Q 31 )(Q 32 )、-B(Q 31 )(Q 32 )、-C(=O)(Q 31 )、-S(=O)2(Q 31 ) or -P(=O)(Q 31 )(Q 32 ), Q1 to Q3, Q 11 To Q 13 , Q 21 To Q 23 and Q 31 To Q 33 are independently: hydrogen; deuterium; -F; -Cl; -Br; -I; a hydroxyl group; a cyano group; a nitro group; C1-C 60 Alkyl group; C2-C 60 Alkenyl group; C2-C 60 Alkynyl group; C1-C 60 alkoxy groups; each of which is unsubstituted or substituted with deuterium, -F, cyano groups, C1-C 60 Alkyl groups, C1-C 60 C3-C4 substituted with an alkoxy group, a phenyl group, a biphenyl group or a combination thereof 60 Carbocyclic group or C1-C 60 Heterocyclic group.

12. The organometallic compound according to claim 11, wherein X1, X2 and X3 are each C, and X4 is N, The bond between X1 and M and the bond between X4 and M are each coordinate bonds, and The bond between X2 and M and the bond between X3 and M are each covalent bonds.

13. The organometallic compound according to claim 11, wherein Ring CY1, ring CY2 and ring CY4 are each independently Benzene group, naphthalene group, anthracene group, phenanthrene group, triphenylene group, pyrene group, group, a cyclopentadiene group, a furan group, a thiophene group, a silole group, an indene group, a fluorene group, an indole group, a carbazole group, a benzofuran group, a dibenzofuran group, a benzothiophene group, a dibenzothiophene group, a benzothioole group, a dibenzothioole group, an azafluorene group, an azacarbazole group, an azadibenzofuran group, an azadibenzothiophene group, an azadibenzothioole group, a pyridine group, a pyrimidine group, a pyrazine group, a pyridazine group, a triazine group, a quinoline group, an isoquinoline group, a quinoxaline group, a quinazoline group, a phenanthroline group, a pyrrole group, a pyrazole group, an imidazole group, a triazole group, an oxazole group, an isoxazole group, a thiazole group, an isothiazole group, an oxadiazole group The invention also includes but is not limited to: an azole group, a thiadiazole group, a benzopyrazole group, a benzimidazole group, a benzoxazole group, a benzothiazole group, a benzoxadiazole group, a benzothiadiazole group, a dibenzooxasilinyl group, a dibenzothiasilinyl group, a dibenzodihydroazasilinyl group, a dibenzodihydrodisilinyl group, a dibenzodihydrosilinyl group, a dibenzodioxinyl group, a dibenzooxathiainyl group, a dibenzoxazine group, a dibenzopyran group, a dibenzodithiainyl group, a dibenzothiazine group, a dibenzothiopyran group, a dibenzocyclohexadiene group, a dibenzodihydropyridine group or a dibenzodihydropyrazine group.

14. The organometallic compound according to claim 11, wherein L1 and L3 are each a single bond, L2 is *-O-*' or *-S-*', and n2 is 1, * and *' are each a binding site to an adjacent atom.

15. The organometallic compound according to claim 11, wherein L4 is a single bond, *-C(R 1a )(R 1b )-*'、*-O-*'、*-Si(R 1a )(R 1b )-*' or *-S-*', and n4 is 1, * and *' are each binding sites to adjacent atoms, R 1a and R 1b Each is the same as defined in claim 11.

16. The organometallic compound according to claim 11, wherein R1, R2, R 31 To R 35 and R4 are each independently: Hydrogen, Deuterium, -F, C1-C 20 Alkyl group or C1-C 20 Alkoxy groups; Each was deuterated, -F, -CD3, -CD2H, -CDH2, -CF3, -CF2H, -CFH2, C1-C 10 C1-C12-substituted alkyl groups, cyclopentyl groups, cyclohexyl groups, cycloheptyl groups, cyclopentenyl groups, cyclohexenyl groups, cycloheptenyl groups, phenyl groups, biphenyl groups, naphthyl groups, pyridyl groups, pyrimidinyl groups, or a combination thereof 20 Alkyl group or C1-C 20 Alkoxy groups; Each is unsubstituted or deuterated, -F, -CD3, -CD2H, -CDH2, -CF3, -CF2H, -CFH2, C1-C 20 Alkyl groups, C1-C 20 an alkoxy group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclopentenyl group, a cyclohexenyl group, a cycloheptenyl group, a phenyl group, a biphenyl group, a (C1-C 10 alkyl)phenyl group, naphthyl group, fluorenyl group, phenanthryl group, anthracenyl group, pyridyl group, pyrazinyl group, pyrimidinyl group, pyridazinyl group, isoindolyl group, indolyl group, indazolyl group, purinyl group, quinolyl group, isoquinolyl group, benzoquinolyl group, quinoxalinyl group, quinazolinyl group, cinnolinyl group, carbazolyl group, benzimidazolyl group, benzofuranyl group, benzothiophenyl group, dibenzofuranyl group, dibenzothiophenyl group, -O(Q 31 )、-S(Q 31 )、-Si(Q 31 )(Q 32 )(Q 33 )、-N(Q 31 )(Q 32 ) or a combination thereof substituted cyclopentyl group, cyclohexyl group, cycloheptyl group, cyclopentenyl group, cyclohexenyl group, cycloheptenyl group, phenyl group, biphenyl group, (C1-C 10 alkyl)phenyl group, naphthyl group, fluorenyl group, phenanthryl group, anthracenyl group, pyridyl group, pyrazinyl group, pyrimidinyl group, pyridazinyl group, isoindolyl group, indolyl group, indazolyl group, purinyl group, quinolyl group, isoquinolyl group, benzoquinolyl group, quinoxalinyl group, quinazoline group, cinnolinyl group, carbazolyl group, benzimidazolyl group, benzofuranyl group, benzothiophenyl group, dibenzofuranyl group, dibenzothiophenyl group; or -C(Q1)(Q2)(Q3), -Si(Q1)(Q2)(Q3), -N(Q1)(Q2), Q1 to Q3 and Q 31 To Q 33 Each independently is: hydrogen; deuterium; -F; C1-C 60 Alkyl group; C2-C 60 Alkenyl group; C2-C 60 Alkynyl group; C1-C 60 Alkoxy groups; each of which is unsubstituted or substituted with deuterium, -F, C1-C 60 Alkyl groups, C1-C 60 C3-C4 substituted with an alkoxy group, a phenyl group, a biphenyl group or a combination thereof 60 Carbocyclic group or C1-C 60 Heterocyclic group.

17. The organometallic compound according to claim 11, wherein In formula 1, The group represented is a group represented by one selected from the group consisting of formula CY1(1) to formula CY1(11): in, In formula CY1(1) to formula CY1(11), R 11 To R 17 Each is the same as described with respect to R1 in Formula 1, * represents a binding site with M in Formula 1, and *' represents the binding site with L1 in Formula 1.

18. The organometallic compound according to claim 11, wherein In formula 1, The group represented is a group represented by one selected from the group consisting of formula CY2(1) to formula CY2(13): in, In formula CY2(1) to formula CY2(13), T 21 is B(Y 21 ), C(Y 21 )(Y 22 ), N(Y 21 ), O, S or Si(Y 21 )(Y 22 ), T 22 is C(Y 21 ), N or Si(Y 21 ), R 21 To R 26 , Y 21 and Y 22 Each is the same as described with respect to R2 in Formula 1, * represents the binding site with M in Formula 1, *' represents the binding site with L1 in Formula 1, and *" indicates the binding site with L2 in Formula 1.

19. The organometallic compound according to claim 11, wherein In formula 1, The group represented is a group represented by one selected from the group consisting of formula CY4(1) to formula CY4(29): in, In formula CY4(1) to formula CY4(29), R 41 To R 47 Each is as defined for R4 in Formula 1, * represents the binding site with M in Formula 1, and *"' represents the binding site with L3 in Formula 1.

20. The organometallic compound according to claim 11, wherein the organometallic compound represented by Formula 1 is an organometallic compound represented by Formula 1-1: Formula 1-1 in, In formula 1-1, M and T1 are each defined as in Formula 1, L2 is *-O-*' or *-S-*', L4 is a single bond, *-C(R 1a )(R 1b )-*'、*-O-*'、*-Si(R 1a )(R 1b )-*' or *-S-*', X 11 is C(R 11 ) or N, X 12 is C(R 12 ) or N, X 13 is C(R 13 ) or N, X 14 is C(R 14 ) or N, X 21 is C(R 21 ) or N, X 22 is C(R 22 ) or N, and X 23 is C(R 23 ) or N, X 41 is C(R 41 ) or N, X 42 is C(R 42 ) or N, X 43 is C(R 43 ) or N, and X 44 is C(R 44 ) or N, R 11 To R 15 Each is as defined for R1 in Formula 1, R 21 To R 23 Each is as defined for R2 in Formula 1, R 311 and R 312 Each is as for R in Formula 1 31 definition, R 321 and R 322 Each is as for R in Formula 1 32 definition, R 331 To R 334 Each is as for R in Formula 1 33 definition, R 341 To R 344 Each is as for R in Formula 1 34 definition, R 351 To R 354 Each is as for R in Formula 1 35 Definition, and R 41 To R 44 Each is as defined for R4 in Formula 1, * and *' are binding sites to adjacent atoms, R 1a and R 1b Each is the same as defined in claim 11.

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