Composition, light-emitting device including same, electronic device including light-emitting device, and electronic equipment including electronic device

Abstract

Embodiments provide a composition, a light-emitting device including the composition, an electronic device including the light-emitting device, and an electronic device including the electronic device. Composition comprising a first compound represented by Formula 1 and a second compound represented by Formula 2, which are explained in the specification: [Formula 1] # imgabs0 # [Formula 2] # imgabs1 #

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to and the benefit of Korean Patent Application No. 10-2023-0137980 filed in the Korean Intellectual Property Office on October 16, 2023, the entire contents of which are incorporated herein by reference. Technical Field

[0003] The disclosure herein relates to compositions, light emitting devices including the same, electronic devices including the light emitting devices, and electronic equipment including the electronic devices. Background Art

[0004] A light emitting device is a device that converts electrical energy into light energy. Examples of such light emitting devices include organic light emitting devices that use organic materials for emission layers, and quantum dot light emitting devices that use quantum dots for emission layers.

[0005] The light emitting device may include a first electrode, a hole transport region, an emission layer, an electron transport region, and a second electrode arranged in sequence. Holes injected from the first electrode may move toward the emission layer through the hole transport region. Electrons injected from the second electrode may move toward the emission layer through the electron transport region. Carriers, such as holes and electrons, may recombine in the emission layer to generate excitons. When the excitons transition from an excited state to a ground state, light may be generated.

[0006] It should be understood that this background section is intended, in part, to provide a useful background for understanding the technology. However, this background section may also include ideas, concepts, or cognitions that were not part of the knowledge or understanding of a person skilled in the relevant art before the corresponding effective filing date of the subject matter disclosed herein. Summary of the invention

[0007] Embodiments include a composition suitable for a deposition process despite including two different hosts, a light emitting device that can be easily manufactured and has a long lifetime and high efficiency by including the composition, an electronic device including the light emitting device, and electronic equipment including the electronic device.

[0008] 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 embodiments of the disclosure.

[0009] Embodiments provide a composition, which may include a first compound represented by Formula 1 and a second compound represented by Formula 2:

[0010] [Formula 1]

[0011]

[0012] [Formula 2]

[0013]

[0014] In equation 1 and equation 2,

[0015] m and n can each independently be 0 or 1,

[0016] At least one of m and n can be 1,

[0017] L 1 To L 4 Can be independently a single bond or *-CH 2 -*', c1 to c4 can each independently be 0 or 1,

[0018] X 1 Can be N or C(R 1a ),

[0019] X 2 Can be N or C(R 2a ),

[0020] X 3 Can be N or C(R 3a ),

[0021] X 4 Can be N or C(R 4a ),

[0022] Y 1 Can be N or C(R 11 ),

[0023] Y 2 Can be N or C(R 12 ),

[0024] Y 3 Can be N or C(R 13 ),

[0025] Y 4 Can be N or C(R 14 ),

[0026] Y 5 Can be N or C(R 15 ),

[0027] Y 6 Can be N or C(R 16 ),

[0028] Y 7 Can be N or C(R 17 ),

[0029] Y 8 Can be N or C(R 18 ),

[0030] X21 Can be N or C(R 21 ),

[0031] X 22 Can be N or C(R 22 ),

[0032] X 23 Can be N or C(R 23 ),

[0033] X 21 To X 23 At least two of them may each be N,

[0034] p may be an integer selected from 0 to 3,

[0035] Z can be C, Si or Ge,

[0036] R 1 , R 2 , R 1a , R 1b , R 2a , R 2b , R 2c , R 3a , R 3b , R 3c , R 4a , R 4b , R 11 To R 18 , R 21 To R 23 , R 24a , R 24b , R 25a , R 25b , R 26a , R 26b and R 27 To R 30 can be independently hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, unsubstituted or substituted by at least one R 10a Substituted C 1 -C 60 Alkyl, unsubstituted or substituted with at least one R 10a Substituted C 2 -C 60 Alkenyl, unsubstituted or substituted with at least one R 10a Substituted C 2 -C 60 Alkynyl, unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Alkoxy, unsubstituted or substituted with at least one R 10a Substituted C 3 -C60 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, unsubstituted or substituted with at least one R 10a Substituted C 6 -C 60 Arylthio, unsubstituted or substituted with at least one R 10a Substituted C 7 -C 60 Arylalkyl, unsubstituted or substituted with at least one R 10a Substituted C 2 -C 60 Heteroaralkyl, -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 ),

[0037] R 10a Can be:

[0038] deuterium, -F, -Cl, -Br, -I, hydroxy, cyano or nitro;

[0039] Each unsubstituted or substituted C 1 -C 60 Alkyl, C 2 -C 60 Alkenyl, C 2 -C 60 Alkynyl or C 1 -C 60 Alkoxy: deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, C 3 -C 60 Carbocyclic group, C 1 -C 60 Heterocyclic group, C 6 -C 60 Aryloxy, C 6 -C 60Arylthio, C 7 -C 60 Aralkyl, C 2 -C 60 Heteroaralkyl, -Si(Q 11 )(Q 12 )(Q 13 )、-N(Q 11 )(Q 12 )、-B(Q 11 )(Q 12 )、-C(=O)(Q 11 )、-S(=O) 2 (Q 11 )、-P(=O)(Q 11 )(Q 12 ) or any combination thereof;

[0040] Each unsubstituted or substituted C 3 -C 60 Carbocyclic group, C 1 -C 60 Heterocyclic group, C 6 -C 60 Aryloxy, C 6 -C 60 Arylthio, C 7 -C 60 Arylalkyl or C 2 -C 60 Heteroaralkyl: deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, C 1 -C 60 Alkyl, C 2 -C 60 Alkenyl, C 2 -C 60 Alkynyl, C 1 -C 60 Alkoxy, C 3 -C 60 Carbocyclic group, C 1 -C 60 Heterocyclic group, C 6 -C 60 Aryloxy, C 6 -C 60 Arylthio, C 7 -C 60 Aralkyl, C 2 -C 60 Heteroaralkyl, -Si(Q 21 )(Q 22 )(Q 23 )、-N(Q 21 )(Q 22 )、-B(Q 21 )(Q22 )、-C(=O)(Q 21 )、-S(=O) 2 (Q 21 )、-P(=O)(Q 21 )(Q 22 ) or any combination thereof; or

[0041] -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 ),

[0042] Q 1 To Q 3 , Q 11 To Q 13 , Q 21 To Q 23 and Q 31 To Q 33 Can be independently:

[0043] Hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, C 1 -C 60 Alkyl, C 2 -C 60 Alkenyl, C 2 -C 60 Alkynyl or C 1 -C 60 Alkoxy; or

[0044] Each unsubstituted or substituted with deuterium, -F, cyano, C 1 -C 60 Alkyl, C 1 -C 60 Alkoxy, phenyl, biphenyl or any combination thereof substituted C 3 -C 60 Carbocyclic group, C 1 -C 60 Heterocyclic group, C 7 -C 60 Arylalkyl or C 2 -C 60 Heteroaralkyl,

[0045] d2 may be an integer selected from 0 to 2,

[0046] d3 may be an integer selected from 0 to 3,

[0047] d4 may be an integer selected from 0 to 4, and

[0048] * and *' each indicate a binding site with an adjacent atom.

[0049] In an embodiment, a difference in deposition temperature between the first compound and the second compound may be equal to or less than about 15°C.

[0050] In an embodiment, in Formula 1, R 1 , R 2 , R 1a , R 1b , R 2a , R 2b , R 2c , R 3a , R 3b , R 3c , R 4a , R 4b and R 11 To R 18 may be independently not: unsubstituted or substituted with at least one R 10a Substituted carbazolyl; or -N(Q 1 )(Q 2 ).

[0051] In an embodiment, in Formula 1, R 1 , R 2 , R 1a , R 1b , R 2a , R 2b , R 2c , R 3a , R 3b , R 3c , R 4a , R 4b and R 11 To R 18 can be independently hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, unsubstituted or substituted by at least one R 10a Substituted C 1 -C 60 Alkyl, unsubstituted or substituted with at least one R 10a Substituted C 2 -C 60 Alkenyl, unsubstituted or substituted with at least one R 10a Substituted C 2 -C 60 Alkynyl, unsubstituted or substituted with at least one R 10a Substituted C1 -C 60 Alkoxy, unsubstituted or substituted with at least one R 10a Substituted C 3 -C 60 Carbocyclic group, -C(Q 1 )(Q 2 )(Q 3 )、-Si(Q 1 )(Q 2 )(Q 3 )、-B(Q 1 )(Q 2 )、-C(=O)(Q 1 )、-S(=O) 2 (Q 1 ) or -P(=O)(Q 1 )(Q 2 ).

[0052] In an embodiment, the first compound may be represented by one of Formula 1-1 to Formula 1-10, which are explained herein.

[0053] In an embodiment, in Formula 2,

[0054] p can be 0, and

[0055] R 26a and R 26b One of them may be unsubstituted or replaced by 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.

[0056] In an embodiment, in Formula 2,

[0057] p can be 0,

[0058] R 26a 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 a heterocyclic group, and

[0059] R 26b It may be hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60Alkyl, unsubstituted or substituted with at least one R 10a Substituted C 2 -C 60 Alkenyl, unsubstituted or substituted with at least one R 10a Substituted C 2 -C 60 Alkynyl is either unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Alkoxy.

[0060] In an embodiment, in Formula 2,

[0061] p may be an integer selected from 1 to 3, and

[0062] R 26a , R 26b and R 27 can be independently hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, unsubstituted or substituted by at least one R 10a Substituted C 1 -C 60 Alkyl, unsubstituted or substituted with at least one R 10a Substituted C 2 -C 60 Alkenyl, unsubstituted or substituted with at least one R 10a Substituted C 2 -C 60 Alkynyl is either unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Alkoxy.

[0063] In an embodiment, the second compound may be represented by one of Formula 2-1 to Formula 2-3, which are explained herein.

[0064] In an embodiment, in Formula 2,

[0065] R 28 To R 30 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.

[0066] In an embodiment, in Formula 2, X 21 To X 23 Each can be N.

[0067] In an embodiment, the first compound may be one of Compound A1 to Compound A99, which are explained herein.

[0068] In an embodiment, the second compound may be one of Compound Bl to Compound B15, which are explained herein.

[0069] An embodiment provides a light emitting device which may include a first electrode, a second electrode facing the first electrode, and an interlayer between the first electrode and the second electrode, wherein the interlayer may include an emission layer, a first compound represented by Formula 1, and a second compound represented by Formula 2, which are explained herein.

[0070] In an embodiment, the interlayer may further include a third compound represented by Formula 3, which is explained herein.

[0071] In an embodiment, the third compound may include at least one deuterium.

[0072] In an embodiment, the interlayer may further include a fourth compound represented by Formula 4, which is explained herein.

[0073] In an embodiment, the fourth compound may include at least one deuterium.

[0074] Embodiments provide an electronic device, which may include a light emitting device and a thin film transistor electrically connected to the light emitting device.

[0075] Embodiments provide electronic equipment, which may include electronic devices, wherein the electronic equipment may be a flat panel display, a curved display, a computer monitor, a medical monitor, a television (TV), 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 mobile phone, a tablet 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, an augmented reality display, a vehicle, a video wall with multiple displays tiled together, a theater screen, a stadium screen, a light therapy device, or a sign.

[0076] It should be understood that the above embodiments have been described in a general and explanatory sense only and not for purposes of limitation, and the present disclosure is not limited to the above embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0077] The attached drawings are included to provide a further understanding of the embodiments, and are incorporated into and constitute a part of this specification. The drawings illustrate the embodiments of the present disclosure and its principles. The above and other aspects and features of the present disclosure will become more apparent by describing its embodiments in detail with reference to the attached drawings, in which:

[0078] Figure 1 is a schematic cross-sectional view of a light emitting device according to an embodiment;

[0079] Figure 2 is a schematic cross-sectional view of an electronic device according to an embodiment;

[0080] Figure 3 is a schematic cross-sectional view of an electronic device according to another embodiment;

[0081] Figure 4 is a schematic perspective view of an electronic device including a light emitting device according to an embodiment;

[0082] Figure 5 is a schematic perspective view of the exterior of a vehicle as an electronic device including a light emitting device according to an embodiment; and

[0083] FIG. 6A to FIG. 6C Each is a schematic diagram of the interior of a vehicle according to an embodiment. DETAILED DESCRIPTION

[0084] The present disclosure will now be described more fully below with reference to the attached drawings in which embodiments are shown. However, the present disclosure may be embodied in different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present disclosure will be thorough and complete and will fully convey the scope of the present disclosure to those skilled in the art.

[0085] In the drawings, the size (eg, thickness), ratio, and dimensions of elements may be exaggerated for ease of description and for clarity. The same reference numerals and the same reference characters refer to the same elements throughout.

[0086] In the specification, it will be understood that when an element (or region, layer, portion, etc.) is referred to as being “on”, “connected to” or “coupled to” another element (or region, layer, portion, etc.), it may be directly on, connected to or coupled to the other element (or region, layer, portion, etc.), or one or more intervening elements (or regions, layers, portions, etc.) may be present therebetween. In a similar sense, when an element (or region, layer, portion, etc.) is described as “covering” another element (or region, layer, portion, etc.), it may directly cover the other element (or region, layer, portion, etc.), or one or more intervening elements (or regions, layers, portions, etc.) may be present therebetween.

[0087] In the specification, when an element is "directly on," "directly connected to," or "directly coupled to" another element, there are no intervening elements. For example, "directly on" may mean that two layers or two elements are disposed without another element (such as an adhesive element) between them.

[0088] As used herein, expressions used in the singular such as “a”, “an” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise.

[0089] As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items. For example, "A and / or B" may be understood to mean "A, B, or A and B". The terms "and" and "or" may be used in a connecting sense or a separating sense and may be understood to be equivalent to "and / or".

[0090] In the specification and claims, for the purposes of its meaning and interpretation, the term "at least one of" is intended to include the meaning of "at least one selected from the group consisting of." For example, "at least one of A, B, and C" may be understood to mean only A, only B, only C, or any combination of two or more of A, B, and C, such as ABC, ACC, BC, or CC. When following a list of elements, the term "at least one of" modifies the entire list of elements and does not modify the individual elements of the list.

[0091] It will be understood that although the terms first, second, etc. may be used to describe various elements in this article, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. Therefore, without departing from the teachings of the present disclosure, the first element may be referred to as the second element. Similarly, without departing from the scope of the present disclosure, the second element may be referred to as the first element.

[0092] For ease of description, spatially relative terms such as "below," "under," "below," "above," or "over" may be used herein to describe the relationship between one element or component and another element or component as illustrated in the accompanying drawings. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. For example, in the case where the device illustrated in the accompanying drawings is turned over, a device that is "below" or "below" another device may be placed "over" the other device. Accordingly, the illustrative term "below" may include both a below position and an above position. The device may also be oriented in other directions, and thus the spatially relative terms may be interpreted differently depending on the orientation.

[0093] As used herein, the terms "about" or "approximately" include the stated value and mean within an acceptable range of deviation from the stated value as determined by one of ordinary skill in the art taking into account the measurement in question and errors associated with the measurement of the stated quantity (i.e., limitations of the measurement system). For example, "about" can mean within one or more standard deviations of the stated value, or within ±20%, ±10%, or ±5% of the stated value.

[0094] It should be understood that the terms “comprise,” “comprising,” “include,” “including,” “have,” “having,” “contains,” and “containing” and the like are intended to indicate the presence of specified features, integers, steps, operations, elements, components, or any combination thereof in the present disclosure, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or any combination thereof.

[0095] Unless otherwise defined or implied herein, all terms (including technical terms and scientific terms) used have the same meaning as those commonly understood by those skilled in the art to which the present disclosure belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning consistent with their meaning in the context of the relevant art and should not be interpreted in an ideal or overly formal sense unless clearly defined in the specification.

[0096] Embodiments provide a composition, which may include a first compound represented by Formula 1 and a second compound represented by Formula 2:

[0097] [Formula 1]

[0098]

[0099] [Formula 2]

[0100]

[0101] In equation 1 and equation 2,

[0102] m and n can each independently be 0 or 1,

[0103] At least one of m and n can be 1,

[0104] L 1 To L 4 Can be independently a single bond or *-CH 2 -*',

[0105] c1 to c4 can each independently be 0 or 1,

[0106] X 1 Can be N or C(R 1a ),

[0107] X 2 Can be N or C(R 2a ),

[0108] X 3 Can be N or C(R 3a ),

[0109] X 4 Can be N or C(R 4a ),

[0110] Y 1 Can be N or C(R 11 ),

[0111] Y 2 Can be N or C(R 12 ),

[0112] Y 3 Can be N or C(R 13 ),

[0113] Y 4 Can be N or C(R 14 ),

[0114] Y 5 Can be N or C(R 15 ),

[0115] Y 6 Can be N or C(R 16 ),

[0116] Y 7 Can be N or C(R 17 ),

[0117] Y 8 Can be N or C(R 18 ),

[0118] X 21 Can be N or C(R 21 ),

[0119] X 22 Can be N or C(R 22 ),

[0120] X 23 Can be N or C(R 23 ),

[0121] X 21 To X 23 At least two of them may each be N,

[0122] p may be an integer selected from 0 to 3,

[0123] Z can be C, Si or Ge,

[0124] R 1 , R 2 , R 1a , R 1b , R 2a , R 2b , R 2c , R 3a , R 3b , R 3c , R 4a , R 4b , R 11 To R 18 , R 21 To R 23 , R 24a , R 24b , R 25a , R 25b , R 26a , R 26b and R 27 To R 30 can be independently hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, unsubstituted or substituted by at least one R 10a Substituted C 1 -C 60 Alkyl, unsubstituted or substituted with at least one R 10a Substituted C 2 -C 60 Alkenyl, unsubstituted or substituted with at least one R 10a Substituted C 2 -C 60 Alkynyl, unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Alkoxy, 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 C 1 -C 60 Heterocyclic group, unsubstituted or substituted with at least one R 10a Substituted C 6 -C 60 Aryloxy, unsubstituted or substituted with at least one R 10a Substituted C 6 -C 60 Arylthio, unsubstituted or substituted with at least one R 10a Substituted C 7 -C 60 Arylalkyl, unsubstituted or substituted with at least one R 10a Substituted C 2 -C 60 Heteroaralkyl, -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 ),

[0125] R 10a Can be:

[0126] deuterium, -F, -Cl, -Br, -I, hydroxy, cyano or nitro;

[0127] Each unsubstituted or substituted C 1 -C 60 Alkyl, C 2 -C 60 Alkenyl, C 2 -C 60 Alkynyl or C 1 -C 60 Alkoxy: deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, C 3 -C 60 Carbocyclic group, C 1 -C 60 Heterocyclic group, C 6 -C 60 Aryloxy, C 6-C 60 Arylthio, C 7 -C 60 Aralkyl, C 2 -C 60 Heteroaralkyl, -Si(Q 11 )(Q 12 )(Q 13 )、-N(Q 11 )(Q 12 )、-B(Q 11 )(Q 12 )、-C(=O)(Q 11 )、-S(=O) 2 (Q 11 )、-P(=O)(Q 11 )(Q 12 ) or any combination thereof;

[0128] Each unsubstituted or substituted C 3 -C 60 Carbocyclic group, C 1 -C 60 Heterocyclic group, C 6 -C 60 Aryloxy, C 6 -C 60 Arylthio, C 7 -C 60 Arylalkyl or C 2 -C 60 Heteroaralkyl: deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, C 1 -C 60 Alkyl, C 2 -C 60 Alkenyl, C 2 -C 60 Alkynyl, C 1 -C 60 Alkoxy, C 3 -C 60 Carbocyclic group, C 1 -C 60 Heterocyclic group, C 6 -C 60 Aryloxy, C 6 -C 60 Arylthio, C 7 -C 60 Aralkyl, C 2 -C 60 Heteroaralkyl, -Si(Q 21 )(Q 22 )(Q 23 )、-N(Q 21 )(Q 22 )、-B(Q21 )(Q 22 )、-C(=O)(Q 21 )、-S(=O) 2 (Q 21 )、-P(=O)(Q 21 )(Q 22 ) or any combination thereof; or

[0129] -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 ),

[0130] Q 1 To Q 3 , Q 11 To Q 13 , Q 21 To Q 23 and Q 31 To Q 33 Can be independently:

[0131] Hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, C 1 -C 60 Alkyl, C 2 -C 60 Alkenyl, C 2 -C 60 Alkynyl or C 1 -C 60 Alkoxy; or

[0132] Each unsubstituted or substituted with deuterium, -F, cyano, C 1 -C 60 Alkyl, C 1 -C 60 Alkoxy, phenyl, biphenyl or any combination thereof substituted C 3 -C 60 Carbocyclic group, C 1 -C 60 Heterocyclic group, C 7 -C 60 Arylalkyl or C 2 -C 60 Heteroaralkyl,

[0133] d2 may be an integer selected from 0 to 2,

[0134] d3 may be an integer selected from 0 to 3,

[0135] d4 may be an integer selected from 0 to 4, and

[0136] * and *' each indicate a binding site with an adjacent atom.

[0137] The composition may include a mixture in which the first compound and the second compound are mixed. Before the light-emitting device is manufactured by deposition of the first compound and the second compound, the first compound and the second compound may be mixed. Therefore, the composition may be referred to as a premix. The weight ratio of the first compound to the second compound in the composition may be 70:30 to 30:70 or 60:40 to 50:50.

[0138] In an embodiment, the difference in deposition temperature between the first compound and the second compound may be equal to or less than about 15°C. For example, the difference in deposition temperature between the first compound and the second compound may be in the range of about 0°C to about 15°C. For example, the difference in deposition temperature between the first compound and the second compound may be in the range of about 0°C to about 10°C. For example, the difference in deposition temperature between the first compound and the second compound may be in the range of about 0°C to about 5°C. For example, the difference in deposition temperature between the first compound and the second compound may be in the range of about 0°C to about 4°C. For example, the difference in deposition temperature between the first compound and the second compound may be in the range of about 0°C to about 3.5°C. For example, the difference in deposition temperature between the first compound and the second compound may be in the range of about 1°C to about 4°C. For example, the difference in deposition temperature between the first compound and the second compound may be in the range of about 1.5°C to about 3.5°C. For example, the difference in deposition temperature between the first compound and the second compound may be in the range of about 2°C to about 3.5°C. The deposition temperature of the first compound and the deposition temperature of the second compound may be measured under the same conditions (e.g., vacuum degree and type of substrate).

[0139] In an embodiment, in Formula 1, L 1 To L 4 Each may be a single bond.

[0140] When c1 is 0, there is no *-(L 1 ) c1 -*'. When c2 is 0, there may be no *-(L 2 ) c2 -*'. When c3 is 0, there may be no *-(L 3 ) c3 -*'. When c4 is 0, there may be no *-(L 4 ) c4 -*'.

[0141] When m is 0, there is no Represents the group.

[0142] When n is 0, there is no Represents the group.

[0143] When p is 0, there is no -Z(R 28 )(R 29 )(R 30 ).

[0144] In an embodiment, in Formula 1, Y 1 Can be C(R 11 ), Y 2 Can be C(R 12 ), Y 3 Can be C(R 13 ), and Y 4 Can be C(R 14 ). In an embodiment, Y 1 Can be N, Y 2 Can be C(R 12 ), Y 3 Can be C(R 13 ), and Y 4 Can be C(R 14 ). In an embodiment, Y 1 Can be C(R 11 ), Y 2 Can be N, Y 3 Can be C(R 13 ), and Y 4 Can be C(R 14 ). In an embodiment, Y 1 Can be C(R 11 ), Y 2 Can be C(R 12 ), Y 3 Can be N, and Y 4 Can be C(R 14 ). In an embodiment, Y 1 Can be C(R 11 ), Y 2 Can be C(R 12 ), Y 3 Can be C(R 13 ), and Y 4 Can be N.

[0145] In an embodiment, in Formula 1, Y 5 Can be C(R 15 ), Y 6 Can be C(R 16 ), Y7 Can be C(R 17 ), and Y 8 Can be C(R 18 ). In an embodiment, Y 5 Can be N, Y 6 Can be C(R 16 ), Y 7 Can be C(R 17 ), and Y 8 Can be C(R 18 ). In an embodiment, Y 5 Can be C(R 15 ), Y 6 Can be N, Y 7 Can be C(R 17 ), and Y 8 Can be C(R 18 ). In an embodiment, Y 5 Can be C(R 15 ), Y 6 Can be C(R 16 ), Y 7 Can be N, and Y 8 Can be C(R 18 ). In an embodiment, Y 5 Can be C(R 15 ), Y 6 Can be C(R 16 ), Y 7 Can be C(R 17 ), and Y 8 Can be N.

[0146] In an embodiment, in Formula 1, R 1 , R 2 , R 1a , R 1b , R 2a , R 2b , R 2c , R 3a , R 3b , R 3c , R 4a , R 4b and R 11 To R 18 may be independently not: unsubstituted or substituted with at least one R 10a Substituted carbazolyl; or -N(Q 1 )(Q 2 ).

[0147] In an embodiment, in Formula 1, R 1 , R 2 , R 1a , R 1b, R 2a , R 2b , R 2c , R 3a , R 3b , R 3c , R 4a , R 4b and R 11 To R 18 can be independently hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, unsubstituted or substituted by at least one R 10a Substituted C 1 -C 60 Alkyl, unsubstituted or substituted with at least one R 10a Substituted C 2 -C 60 Alkenyl, unsubstituted or substituted with at least one R 10a Substituted C 2 -C 60 Alkynyl, unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Alkoxy, unsubstituted or substituted with at least one R 10a Substituted C 3 -C 60 Carbocyclic group, -C(Q 1 )(Q 2 )(Q 3 )、-Si(Q 1 )(Q 2 )(Q 3 )、-B(Q 1 )(Q 2 )、-C(=O)(Q 1 )、-S(=O) 2 (Q 1 ) or -P(=O)(Q 1 )(Q 2 ).

[0148] In an embodiment, in Formula 1, R 1 , R 2 , R 1a , R 1b , R 2a , R 2b , R 2c , R 3a , R 3b , R 3c , R 4a , R 4b and R 11 To R 18 can be independently hydrogen, deuterium, -F, -Cl, cyano, unsubstituted or substituted with at least one R10a Substituted C 1 -C 60 Alkyl is either unsubstituted or substituted with at least one R 10a Substituted C 6 -C 60 Aryl.

[0149] In an embodiment, the first compound may be represented by one of Formula 1-1 to Formula 1-10:

[0150] [Formula 1-1]

[0151]

[0152] [Formula 1-2]

[0153]

[0154] [Formula 1-3]

[0155]

[0156] [Formula 1-4]

[0157]

[0158] [Formula 1-5]

[0159]

[0160] [Formula 1-6]

[0161]

[0162] [Formula 1-7]

[0163]

[0164] [Formula 1-8]

[0165]

[0166] [Formula 1-9]

[0167]

[0168] [Formula 1-10]

[0169]

[0170] In Formula 1-1 to Formula 1-10, Y 1 To Y 8 , X 1 To X 4 , L 1 To L 4, R 1b , R 2b , R 2c , R 3b , R 3c , R 4b 、c1 to c4、d2 to d4、R 1 , R 2 , n and m may be the same as described in Formula 1.

[0171] In an embodiment, in Formula 2, p may be 0, and

[0172] R 26a and R 26b One of them may be unsubstituted or replaced by 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.

[0173] For example, in Formula 2, p may be 0, and

[0174] R 26a and R 26b One of them may be unsubstituted or replaced by at least one R 10a substituted carbazolyl.

[0175] In an embodiment, in Formula 2, p may be 0,

[0176] R 26a 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 a heterocyclic group, and

[0177] R 26b It may be hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Alkyl, unsubstituted or substituted with at least one R 10a Substituted C 2 -C 60 Alkenyl, unsubstituted or substituted with at least one R 10a Substituted C 2 -C 60 Alkynyl is either unsubstituted or substituted with at least one R 10a Substituted C 1-C 60 Alkoxy.

[0178] For example, in Formula 2, p can be 0,

[0179] R 26a may be unsubstituted or substituted with at least one R 10a substituted carbazolyl, and

[0180] R 26b It may be hydrogen, deuterium, -F, -Cl, cyano, unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Alkyl, unsubstituted or substituted with at least one R 10a Substituted C 2 -C 60 Alkenyl, unsubstituted or substituted with at least one R 10a Substituted C 2 -C 60 Alkynyl is either unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Alkoxy.

[0181] In an embodiment, in Formula 2, p may be an integer selected from 1 to 3, and

[0182] R 26a , R 26b and R 27 can be independently hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, unsubstituted or substituted by at least one R 10a Substituted C 1 -C 60 Alkyl, unsubstituted or substituted with at least one R 10a Substituted C 2 -C 60 Alkenyl, unsubstituted or substituted with at least one R 10a Substituted C 2 -C 60 Alkynyl is either unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Alkoxy.

[0183] For example, in Formula 2, p can be 1 or 2, and

[0184] R 26a , R 26b and R 27 can be independently hydrogen, deuterium, -F, -Cl, cyano, unsubstituted or substituted with at least one R 10a Substituted C 1 -C60 Alkyl, unsubstituted or substituted with at least one R 10a Substituted C 2 -C 60 Alkenyl, unsubstituted or substituted with at least one R 10a Substituted C 2 -C 60 Alkynyl is either unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Alkoxy.

[0185] In an embodiment, the second compound may be represented by one of Formula 2-1 to Formula 2-3:

[0186] [Formula 2-1]

[0187]

[0188] [Formula 2-2]

[0189]

[0190] [Formula 2-3]

[0191]

[0192] In Formula 2-1 to Formula 2-3,

[0193] X 21 To X 23 , R 24a , R 24b , R 25a , R 25b , R 26a , R 26b , R 27 To R 30 , d2, d3 and d4 may be the same as described in Formula 2,

[0194] Z 1 and Z 2 may be independently the same as described with reference to Z in Formula 2,

[0195] R 28a and R 28b can be independently compared with R in formula 2 28 Same as described,

[0196] R 29a and R 29b can be independently compared with R in reference formula 2 29 Same as described, and

[0197] R 30a and R 30bcan be independently compared with R in formula 2 30 Same as described.

[0198] In an embodiment, in Formula 2, R 28 To R 30 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.

[0199] For example, in Formula 2, R 28 To R 30 may be each independently unsubstituted or substituted with at least one R 10a Substituted C 6 -C 60 In an embodiment, in Formula 2, R 28 To R 30 may be each independently unsubstituted or substituted with deuterium, -F, -Cl, cyano, C 1 -C 60 Phenyl, biphenyl or terphenyl substituted with alkyl or any combination thereof.

[0200] In an embodiment, in Formula 2,

[0201] X 21 Can be N, X 22 Can be N, and X 23 Can be C(R 23 ),

[0202] X 21 Can be N, X 22 Can be C(R 22 ), and X 23 Can be N,

[0203] X 21 Can be C(R 21 ), X 22 Can be N, and X 23 Can be N, or

[0204] X 21 To X 23 Each can be N.

[0205] In an embodiment, the first compound may be one of Compound A1 to Compound A99. In Compound A1 to Compound A99, D represents a deuterium atom. In an embodiment, the first compound may be one of Compound A1 to Compound A99, wherein at least one hydrogen included in these compounds may be substituted with deuterium.

[0206]

[0207]

[0208]

[0209]

[0210]

[0211]

[0212]

[0213]

[0214] In an embodiment, the second compound may be one of Compound B1 to Compound B15. In Compound B1 to Compound B1, D represents a deuterium atom. In an embodiment, the second compound may be one of Compound B1 to Compound B15, wherein at least one hydrogen included in these compounds may be substituted with deuterium.

[0215]

[0216]

[0217] An embodiment provides a light emitting device, which may include: a first electrode; a second electrode facing the first electrode; and an interlayer between the first electrode and the second electrode, wherein

[0218] The interlayer may include an emission layer, a first compound represented by Formula 1, and a second compound represented by Formula 2:

[0219] [Formula 1]

[0220]

[0221] [Formula 2]

[0222]

[0223] In equation 1 and equation 2,

[0224] m and n can each independently be 0 or 1,

[0225] At least one of m and n can be 1,

[0226] L 1 To L 4 Can be independently a single bond or *-CH 2 -*',

[0227] c1 to c4 can each independently be 0 or 1,

[0228] X 1 Can be N or C(R 1a ),

[0229] X 2 Can be N or C(R 2a ),

[0230] X 3 Can be N or C(R 3a ),

[0231] X 4 Can be N or C(R 4a ),

[0232] Y 1 Can be N or C(R 11 ),

[0233] Y 2 Can be N or C(R 12 ),

[0234] Y 3 Can be N or C(R 13 ),

[0235] Y 4 Can be N or C(R 14 ),

[0236] Y 5 Can be N or C(R 15 ),

[0237] Y 6 Can be N or C(R 16 ),

[0238] Y 7 Can be N or C(R 17 ),

[0239] Y 8 Can be N or C(R 18 ),

[0240] X 21 Can be N or C(R 21 ),

[0241] X 22Can be N or C(R 22 ),

[0242] X 23 Can be N or C(R 23 ),

[0243] X 21 To X 23 At least two of them may each be N,

[0244] p may be an integer selected from 0 to 3,

[0245] Z can be C, Si or Ge,

[0246] R 1 , R 2 , R 1a , R 1b , R 2a , R 2b , R 2c , R 3a , R 3b , R 3c , R 4a , R 4b , R 11 To R 18 , R 21 To R 23 , R 24a , R 24b , R 25a , R 25b , R 26a , R 26b and R 27 To R 30 can be independently hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, unsubstituted or substituted by at least one R 10a Substituted C 1 -C 60 Alkyl, unsubstituted or substituted with at least one R 10a Substituted C 2 -C 60 Alkenyl, unsubstituted or substituted with at least one R 10a Substituted C 2 -C 60 Alkynyl, unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Alkoxy, 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 60Heterocyclic group, unsubstituted or substituted with at least one R 10a Substituted C 6 -C 60 Aryloxy, unsubstituted or substituted with at least one R 10a Substituted C 6 -C 60 Arylthio, unsubstituted or substituted with at least one R 10a Substituted C 7 -C 60 Arylalkyl, unsubstituted or substituted with at least one R 10a Substituted C 2 -C 60 Heteroaralkyl, -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 ),

[0247] R 10a Can be:

[0248] deuterium, -F, -Cl, -Br, -I, hydroxy, cyano or nitro;

[0249] Each unsubstituted or substituted C 1 -C 60 Alkyl, C 2 -C 60 Alkenyl, C 2 -C 60 Alkynyl or C 1 -C 60 Alkoxy: deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, C 3 -C 60 Carbocyclic group, C 1 -C 60 Heterocyclic group, C 6 -C 60 Aryloxy, C 6 -C 60 Arylthio, C 7 -C 60 Aralkyl, C 2 -C 60Heteroaralkyl, -Si(Q 11 )(Q 12 )(Q 13 )、-N(Q 11 )(Q 12 )、-B(Q 11 )(Q 12 )、-C(=O)(Q 11 )、-S(=O) 2 (Q 11 )、-P(=O)(Q 11 )(Q 12 ) or any combination thereof;

[0250] Each unsubstituted or substituted C 3 -C 60 Carbocyclic group, C 1 -C 60 Heterocyclic group, C 6 -C 60 Aryloxy, C 6 -C 60 Arylthio, C 7 -C 60 Arylalkyl or C 2 -C 60 Heteroaralkyl: deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, C 1 -C 60 Alkyl, C 2 -C 60 Alkenyl, C 2 -C 60 Alkynyl, C 1 -C 60 Alkoxy, C 3 -C 60 Carbocyclic group, C 1 -C 60 Heterocyclic group, C 6 -C 60 Aryloxy, C 6 -C 60 Arylthio, C 7 -C 60 Aralkyl, C 2 -C 60 Heteroaralkyl, -Si(Q 21 )(Q 22 )(Q 23 )、-N(Q 21 )(Q 22 )、-B(Q 21 )(Q 22 )、-C(=O)(Q 21 )、-S(=O) 2 (Q 21)、-P(=O)(Q 21 )(Q 22 ) or any combination thereof; or

[0251] -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 ),

[0252] Q 1 To Q 3 , Q 11 To Q 13 , Q 21 To Q 23 and Q 31 To Q 33 Can be independently:

[0253] Hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, C 1 -C 60 Alkyl, C 2 -C 60 Alkenyl, C 2 -C 60 Alkynyl or C 1 -C 60 Alkoxy; or

[0254] Each unsubstituted or substituted with deuterium, -F, cyano, C 1 -C 60 Alkyl, C 1 -C 60 Alkoxy, phenyl, biphenyl or any combination thereof substituted C 3 -C 60 Carbocyclic group, C 1 -C 60 Heterocyclic group, C 7 -C 60 Arylalkyl or C 2 -C 60 Heteroaralkyl,

[0255] d2 may be an integer selected from 0 to 2,

[0256] d3 may be an integer selected from 0 to 3,

[0257] d4 may be an integer selected from 0 to 4, and

[0258] * and *' each indicate a binding site with an adjacent atom.

[0259] In an embodiment, the interlayer may include the above composition. For example, the interlayer may be formed by depositing the above composition.

[0260] In an embodiment, the emission layer may include a first compound and a second compound. For example, the emission layer may include the above composition. For example, the emission layer may be formed by depositing the above composition. In an embodiment, the first compound and the second compound may form an excited complex. The weight ratio of the first compound to the second compound in the emission layer may be 70:30 to 30:70 or 60:40 to 50:50.

[0261] In an embodiment, the emissive layer may emit blue light.

[0262] In an embodiment, the interlayer may further include a third compound represented by Formula 3:

[0263] [Formula 3]

[0264]

[0265] In formula 3,

[0266] R 31 To R 35 can be independently hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, unsubstituted or substituted by at least one R 10a Substituted C 1 -C 60 Alkyl, unsubstituted or substituted with at least one R 10a Substituted C 2 -C 60 Alkenyl, unsubstituted or substituted with at least one R 10a Substituted C 2 -C 60 Alkynyl, unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Alkoxy, 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, unsubstituted or substituted with at least one R10a Substituted C 6 -C 60 Arylthio, unsubstituted or substituted with at least one R 10a Substituted C 7 -C 60 Arylalkyl, unsubstituted or substituted with at least one R 10a Substituted C 2 -C 60 Heteroaralkyl, -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 ), R 10a Can be:

[0267] deuterium, -F, -Cl, -Br, -I, hydroxy, cyano or nitro;

[0268] Each unsubstituted or substituted C 1 -C 60 Alkyl, C 2 -C 60 Alkenyl, C 2 -C 60 Alkynyl or C 1 -C 60 Alkoxy: deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, C 3 -C 60 Carbocyclic group, C 1 -C 60 Heterocyclic group, C 6 -C 60 Aryloxy, C 6 -C 60 Arylthio, C 7 -C 60 Aralkyl, C 2 -C 60 Heteroaralkyl, -Si(Q 11 )(Q 12 )(Q 13 )、-N(Q 11 )(Q 12 )、-B(Q 11)(Q 12 )、-C(=O)(Q 11 )、-S(=O) 2 (Q 11 )、-P(=O)(Q 11 )(Q 12 ) or any combination thereof;

[0269] Each unsubstituted or substituted C 3 -C 60 Carbocyclic group, C 1 -C 60 Heterocyclic group, C 6 -C 60 Aryloxy, C 6 -C 60 Arylthio, C 7 -C 60 Arylalkyl or C 2 -C 60 Heteroaralkyl: deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, C 1 -C 60 Alkyl, C 2 -C 60 Alkenyl, C 2 -C 60 Alkynyl, C 1 -C 60 Alkoxy, C 3 -C 60 Carbocyclic group, C 1 -C 60 Heterocyclic group, C 6 -C 60 Aryloxy, C 6 -C 60 Arylthio, C 7 -C 60 Aralkyl, C 2 -C 60 Heteroaralkyl, -Si(Q 21 )(Q 22 )(Q 23 )、-N(Q 21 )(Q 22 )、-B(Q 21 )(Q 22 )、-C(=O)(Q 21 )、-S(=O) 2 (Q 21 )、-P(=O)(Q 21 )(Q 22 ) or any combination thereof; or

[0270] -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 ),

[0271] Q 1 To Q 3 , Q 11 To Q 13 , Q 21 To Q 23 and Q 31 To Q 33 Can be independently:

[0272] Hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, C 1 -C 60 Alkyl, C 2 -C 60 Alkenyl, C 2 -C 60 Alkynyl or C 1 -C 60 Alkoxy; or

[0273] Each unsubstituted or substituted with deuterium, -F, cyano, C 1 -C 60 Alkyl, C 1 -C 60 Alkoxy, phenyl, biphenyl or any combination thereof substituted C 3 -C 60 Carbocyclic group, C 1 -C 60 Heterocyclic group, C 7 -C 60 Arylalkyl or C 2 -C 60 Heteroaralkyl,

[0274] d3 may be an integer selected from 0 to 3, and

[0275] d4 may be an integer selected from 0 to 4.

[0276] In an embodiment, the third compound may include at least one deuterium.

[0277] In an embodiment, in Formula 3, R 31 and R 32 may be each independently unsubstituted or substituted with deuterium, -F, -Cl, cyano, C1 -C 60 Phenyl, biphenyl or terphenyl substituted with an alkyl group, a phenyl group, a carbazolyl group, a dibenzofuranyl group, a dibenzothiophenyl group or any combination thereof.

[0278] In an embodiment, the third compound may be represented by Formula 3-1:

[0279] [Formula 3-1]

[0280]

[0281] In formula 3-1,

[0282] R 31 , R 32 , d3 and d4 may each be the same as described in Formula 3, and

[0283] R 33a , R 33b , R 34a and R 34b Can be independently referred to as R 10a Described. 33 To R 35 can be independently hydrogen, deuterium, -F, -Cl, cyano, unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Alkyl, unsubstituted or substituted with at least one R 10a Substituted C 6 -C 60 Aryl, unsubstituted or substituted with at least one R 10a substituted carbazolyl, unsubstituted or replaced by at least one R 10a Substituted dibenzofuranyl or unsubstituted or replaced by at least one R 10a Substituted dibenzothienyl.

[0284] In an embodiment, the third compound may be one of Compounds C1 to C10. In Compounds C1 to C10, D represents a deuterium atom. In an embodiment, the third compound may be one of Compounds C1 to C10, wherein at least one hydrogen in these compounds is substituted with deuterium.

[0285]

[0286] In an embodiment, the interlayer may further include a fourth compound represented by Formula 4:

[0287] [Formula 4]

[0288]

[0289] In formula 4,

[0290] R 41 To R 46 can be independently hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, unsubstituted or substituted by at least one R 10a Substituted C 1 -C 60 Alkyl, unsubstituted or substituted with at least one R 10a Substituted C 2 -C 60 Alkenyl, unsubstituted or substituted with at least one R 10a Substituted C 2 -C 60 Alkynyl, unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Alkoxy, 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, unsubstituted or substituted with at least one R 10a Substituted C 6 -C 60 Arylthio, unsubstituted or substituted with at least one R 10a Substituted C 7 -C 60 Arylalkyl, unsubstituted or substituted with at least one R 10a Substituted C 2 -C 60 Heteroaralkyl, -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 ), R 10a Can be:

[0291] deuterium, -F, -Cl, -Br, -I, hydroxy, cyano or nitro;

[0292] Each unsubstituted or substituted C 1 -C 60 Alkyl, C 2 -C 60 Alkenyl, C 2 -C 60 Alkynyl or C 1 -C 60 Alkoxy: deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, C 3 -C 60 Carbocyclic group, C 1 -C 60 Heterocyclic group, C 6 -C 60 Aryloxy, C 6 -C 60 Arylthio, C 7 -C 60 Aralkyl, C 2 -C 60 Heteroaralkyl, -Si(Q 11 )(Q 12 )(Q 13 )、-N(Q 11 )(Q 12 )、-B(Q 11 )(Q 12 )、-C(=O)(Q 11 )、-S(=O) 2 (Q 11 )、-P(=O)(Q 11 )(Q 12 ) or any combination thereof;

[0293] Each unsubstituted or substituted C 3 -C 60 Carbocyclic group, C 1 -C 60 Heterocyclic group, C 6 -C 60 Aryloxy, C 6 -C 60 Arylthio, C 7 -C 60 Arylalkyl or C 2 -C 60 Heteroaralkyl: deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, C 1 -C 60 Alkyl, C 2 -C 60 Alkenyl, C 2 -C 60Alkynyl, C 1 -C 60 Alkoxy, C 3 -C 60 Carbocyclic group, C 1 -C 60 Heterocyclic group, C 6 -C 60 Aryloxy, C 6 -C 60 Arylthio, C 7 -C 60 Aralkyl, C 2 -C 60 Heteroaralkyl, -Si(Q 21 )(Q 22 )(Q 23 )、-N(Q 21 )(Q 22 )、-B(Q 21 )(Q 22 )、-C(=O)(Q 21 )、-S(=O) 2 (Q 21 )、-P(=O)(Q 21 )(Q 22 ) or any combination thereof; or

[0294] -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 ),

[0295] Q 1 To Q 3 , Q 11 To Q 13 , Q 21 To Q 23 and Q 31 To Q 33 Can be independently:

[0296] Hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, C 1 -C 60 Alkyl, C 2 -C 60 Alkenyl, C 2 -C60 Alkynyl or C 1 -C 60 Alkoxy; or

[0297] Each unsubstituted or substituted with deuterium, -F, cyano, C 1 -C 60 Alkyl, C 1 -C 60 Alkoxy, phenyl, biphenyl or any combination thereof substituted C 3 -C 60 Carbocyclic group, C 1 -C 60 Heterocyclic group, C 7 -C 60 Arylalkyl or C 2 -C 60 Heteroaralkyl,

[0298] d2 may be an integer selected from 0 to 2,

[0299] d3 may be an integer selected from 0 to 3,

[0300] d4 may be an integer selected from 0 to 4, and

[0301] d5 may be an integer selected from 0 to 5.

[0302] In an embodiment, the fourth compound may include at least one deuterium.

[0303] In an embodiment, the fourth compound may be represented by Formula 4-1:

[0304] [Formula 4-1]

[0305]

[0306] In formula 4-1,

[0307] d2, d3, d4 and d5 may each be the same as described in Formula 4,

[0308] R 46a and R 46b Can be independently referred to as R 10a Described. 41 To R 46 can be independently hydrogen, deuterium, -F, -Cl, cyano, unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Alkyl is either unsubstituted or substituted with at least one R 10a Substituted C 6 -C 60 Aryl.

[0309] For example, R41 To R 46 , R 46a and R 46b Can be independently:

[0310] Hydrogen, deuterium, -F, -Cl or cyano;

[0311] C unsubstituted or substituted by deuterium, -F, -Cl, cyano or any combination thereof 1 -C 60 Alkyl; or

[0312] Unsubstituted or substituted with deuterium, -F, -Cl, cyano, C 1 -C 60 Phenyl substituted with alkyl or any combination thereof.

[0313] In an embodiment, the fourth compound may be one of compounds D1 to D10. In compounds D1 to D10, D represents a deuterium atom. In an embodiment, the fourth compound may be one of compounds D1 to D10, wherein at least one hydrogen in these compounds is replaced by deuterium.

[0314]

[0315] The light-emitting device may emit blue light by including the third compound and the fourth compound. The first compound may be a hole transport host suitable for emitting blue light in the emission layer. The second compound may be an electron transport host suitable for emitting blue light in the emission layer. Therefore, the light-emitting device including the first compound and the second compound may have high efficiency and long life.

[0316] In an embodiment, even when the first compound and the second compound are used together as a composition in a single deposition source in a deposition process, a light-emitting device having substantially uniform characteristics can be manufactured. Therefore, the first compound and the second compound can be premixed, and thus, the cost and time required for manufacturing the light-emitting device can be reduced.

[0317] [ Figure 1 Description]

[0318] Figure 1 1 is a schematic cross-sectional view of a light emitting device 10 according to an embodiment. The light emitting device 10 may include a first electrode 110, an interlayer, and a second electrode 150. The interlayer may include a hole transport region 120, an emission layer 130, and an electron transport region 140.

[0319] Below, we will refer to Figure 1 A structure of a light emitting device 10 and a method of manufacturing the light emitting device 10 according to an embodiment are described.

[0320] [First electrode 110]

[0321] exist Figure 1 In the embodiment, the substrate may be further included under the first electrode 110 or on the second electrode 150. In an embodiment, the substrate may be a glass substrate or a plastic substrate. The substrate may be a flexible substrate. For example, the substrate may include a plastic having excellent heat resistance and durability, such as polyimide, polyethylene terephthalate (PET), polycarbonate, polyethylene naphthalate, polyarylate (PAR), polyetherimide, or any combination thereof.

[0322] The first electrode 110 may be formed by depositing or sputtering a material for forming the first electrode 110 on a substrate. When the first electrode 110 is an anode, a high work function material that facilitates injection of holes may be used as the material for forming the first electrode 110.

[0323] The first electrode 110 may be a reflective electrode, a semi-transmissive electrode, or a transmissive electrode. When the first electrode 110 is a transmissive electrode, a material for forming the first electrode 110 may include indium tin oxide (ITO), indium zinc oxide (IZO), tin oxide (SnO 2 ), zinc oxide (ZnO), or any combination thereof. When the first electrode 110 is a semi-transmissive electrode or a reflective electrode, magnesium (Mg), silver (Ag), aluminum (Al), aluminum-lithium (Al-Li), calcium (Ca), magnesium-indium (Mg-In), magnesium-silver (Mg-Ag), or any combination thereof may be used as a material for forming the first electrode 110.

[0324] 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 triple-layer structure of ITO / Ag / ITO.

[0325] [Mezzanine]

[0326] The interlayer may be disposed on the first electrode 110. The interlayer may include a hole transport region 120, an emission layer 130, and an electron transport region 140.

[0327] The interlayer may include various organic materials, metal-containing compounds (such as organometallic compounds), and inorganic materials (such as quantum dots), among others.

[0328] In an embodiment, the interlayer may include at least two emission units stacked between the first electrode 110 and the second electrode 150 and at least one charge generation layer disposed between adjacent units of the at least two emission units. When the interlayer includes the emission units and at least one charge generation layer as described above, the light emitting device 10 may be a tandem light emitting device.

[0329] [Hole transport region 120]

[0330] The hole transport region 120 may have a single-layer structure consisting of a layer (composed of a single material), a single-layer structure consisting of a layer including different materials, or a multi-layer structure including a plurality of layers (including different materials).

[0331] The hole transport region 120 may include a hole injection layer, a hole transport layer, an emission assisting layer, an electron blocking layer, or any combination thereof.

[0332] For example, the hole transport region 120 may have a multilayer structure including a hole injection layer / hole transport layer structure, a hole injection layer / hole transport layer / emission 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 may be stacked from the first electrode 110 in their respective prescribed orders, but the structure of the hole transport region 120 is not limited thereto.

[0333] The hole transport region 120 may include a compound represented by Formula 201, a compound represented by Formula 202, or any combination thereof:

[0334] [Formula 201]

[0335]

[0336] [Formula 202]

[0337]

[0338] In equation 201 and equation 202,

[0339] L 201 To L 204 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,

[0340] L 205 Can be *-O-*', *-S-*', *-N(Q 201 )-*', unsubstituted or replaced by at least one R 10a Substituted C 1 -C 20 Alkylene, unsubstituted or substituted with at least one R 10a Substituted C 2 -C 20 Alkenylene, unsubstituted or substituted with at least one R 10a Substituted C 3 -C 60The carbocyclic group is either unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Heterocyclic group,

[0341] xa1 to xa4 may each independently be an integer selected from 0 to 5,

[0342] xa5 may be an integer selected from 1 to 10,

[0343] 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 group,

[0344] R 201 and R 202 may be optionally substituted by a single bond, unsubstituted or by at least one R 10a Substituted C 1 -C 5 Alkylene is either unsubstituted or substituted with at least one R 10a Substituted C 2 -C 5 The alkenylene groups are connected to each other to form an unsubstituted or substituted R 10a Substituted C 8 -C 60 Polycyclic groups (e.g., carbazole groups, etc.) (e.g., compound HT16, etc.),

[0345] 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 Alkylene is either unsubstituted or substituted with at least one R 10a Substituted C 2 -C 5 The alkenylene groups are bonded to each other to form an unsubstituted or substituted group. 10a Substituted C 8 -C 60 polycyclic groups, and

[0346] na1 may be an integer selected from 1 to 4.

[0347] In an embodiment, the compound represented by Formula 201 and the compound represented by Formula 202 may each independently include at least one of the groups represented by Formulas CY201 to CY217:

[0348]

[0349] In formula CY201 to formula CY217, R 10b and R 10c Can be independently referred to as R 10a Description, Cyclic Cy 201 To Ring CY 204 Can be independently C 3 -C 20 Carbocyclic 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.

[0350] In an embodiment, in Formula CY201 to Formula CY217, ring CY 201 To Ring CY 204 Each independently may be phenyl, naphthyl, phenanthryl or anthracenyl.

[0351] In an embodiment, the compound represented by Formula 201 and the compound represented by Formula 202 may each independently include at least one of the groups represented by Formulas CY201 to CY203.

[0352] In an embodiment, the compound represented by Formula 201 may include at least one of the groups represented by Formulas CY201 to CY203 and at least one of the groups represented by Formulas CY204 to CY217.

[0353] In an embodiment, in Formula 201, xa1 may be 1, R 201 may be a group represented by one of the formulas CY201 to CY203, xa2 may be 0, and R 202 It may be a group represented by one of Formula CY204 to Formula CY207.

[0354] In an embodiment, the compound represented by Formula 201 and the compound represented by Formula 202 may each not include the groups represented by Formula CY201 to Formula CY203.

[0355] In an embodiment, the compound represented by Formula 201 and the compound represented by Formula 202 may each not include the groups represented by Formula CY201 to Formula CY203, and may each independently include at least one of the groups represented by Formula CY204 to Formula CY217.

[0356] In an embodiment, the compound represented by Formula 201 and the compound represented by Formula 202 may each not include a group represented by one of Formulas CY201 to CY217.

[0357] In an embodiment, the hole transport region 120 may include one of 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 any combination thereof:

[0358]

[0359]

[0360]

[0361]

[0362]

[0363] The thickness of the hole transport region 120 may be about to about For example, the thickness of the hole transport region 120 may be in the range of about to about When the hole transport region 120 includes a hole injection layer, a hole transport layer, or any combination thereof, the thickness of the hole injection layer may be about 1000 nm. to about and the thickness of the hole transport layer may be in the range of about to about For example, the thickness of the hole injection layer may be in the range of about to about For example, the thickness of the hole transport layer may be in the range of about to about When the thicknesses of the hole transport region 120, the hole injection layer, and the hole transport layer are within these ranges, satisfactory hole transport characteristics may be obtained without significantly increasing the driving voltage.

[0364] The emission assisting layer may be used to increase light emission efficiency by compensating for an optical resonance distance according to the wavelength of light emitted by the emission layer 130. The electron blocking layer may be used to prevent electrons from the emission layer 130 from leaking to the hole transporting region 120. Materials that may be included in the hole transporting region 120 may be included in the emission assisting layer and the electron blocking layer.

[0365] [p-dopant]

[0366] In addition to the materials described above, the hole transport region 120 may include a charge generation material for improvement of conductive properties. The charge generation material may be uniformly or non-uniformly dispersed in the hole transport region 120 (eg, in the form of a single layer composed of the charge generation material).

[0367] The charge generating material may be, for example, a p-dopant.

[0368] For example, the p-dopant can have a lowest unoccupied molecular orbital (LUMO) energy level equal to or less than about -3.5 eV.

[0369] 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 any combination thereof.

[0370] Examples of the quinone derivative may include TCNQ, F4-TCNQ, and the like.

[0371] Examples of the cyano group-containing compound may include HAT-CN and a compound represented by Formula 221, and the like:

[0372]

[0373] [Formula 221]

[0374]

[0375] In formula 221,

[0376] 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 a heterocyclic group, and

[0377] R 221 To R 223 At least one of them may be independently C each substituted by 3 -C 60 Carbocyclic or C1 -C 60 Heterocyclic group: cyano; -F; -Cl; -Br; -I; C substituted by cyano, -F, -Cl, -Br, -I or any combination thereof 1 -C 20 or any combination thereof.

[0378] In a compound including an element EL1 and an element EL2, the element EL1 may be a metal, a metalloid, or any combination thereof, and the element EL2 may be a nonmetal, a metalloid, or any combination thereof.

[0379] Examples of metals may include alkali metals (e.g., lithium (Li), sodium (Na), potassium (K), rubidium (Rb), or cesium (Cs), etc.); alkaline earth metals (e.g., beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), or barium (Ba), etc.); transition metals (e.g., titanium (Ti), zirconium (Zr), hafnium (Hf), vanadium (V), niobium (Nb), tantalum (Ta), chromium (Cr), molybdenum (Mo), tungsten (W), manganese (Mn), technetium (Tc), rhenium (Re), iron (Fe), ruthenium (Ru), osmium (Os), cobalt ( Co), rhodium (Rh), iridium (Ir), nickel (Ni), palladium (Pd), platinum (Pt), copper (Cu), silver (Ag) or gold (Au) etc.); late transition metals (e.g., zinc (Zn), indium (In) or tin (Sn) etc.); and lanthanide metals (e.g., lanthanum (La), cerium (Ce), praseodymium (Pr), neodymium (Nd), promethium (Pm), samarium (Sm), europium (Eu), gadolinium (Gd), terbium (Tb), dysprosium (Dy), holmium (Ho), erbium (Er), thulium (Tm), ytterbium (Yb) or lutetium (Lu) etc.); etc.

[0380] Examples of metalloids may include silicon (Si), antimony (Sb), tellurium (Te), and the like.

[0381] Examples of non-metal may include oxygen (O) and halogen (eg, F, Cl, Br, or I, etc.), and the like.

[0382] For example, the compound containing element EL1 and element EL2 may include a metal oxide, a metal halide (e.g., a metal fluoride, a metal chloride, a metal bromide, or a metal iodide, etc.), a metalloid halide (e.g., a metalloid fluoride, a metalloid chloride, a metalloid bromide, or a metalloid iodide, etc.), a metal telluride, or any combination thereof.

[0383] Examples of metal oxides may include tungsten oxides (eg, WO, W 2 O 3 , WO 2 , WO 3 or W 2 O 5etc.), vanadium oxides (e.g., VO, V 2 O 3 , VO 2 or V 2 O 5 etc.), molybdenum oxides (e.g., MoO, Mo 2 O 3 、MoO 2 、MoO 3 Or Mo 2 O 5 etc.) and rhenium oxides (e.g., ReO 3 etc.

[0384] Examples of the metal halide may include alkali metal halides, alkaline earth metal halides, transition metal halides, post-transition metal halides, lanthanide metal halides, and the like.

[0385] Examples of alkali metal halides may include LiF, NaF, KF, RbF, CsF, LiCl, NaCl, KCl, RbCl, CsCl, LiBr, NaBr, KBr, RbBr, CsBr, LiI, NaI, KI, RbI, CsI, and the like.

[0386] Examples of alkaline earth metal halides may include BeF 2 MgF 2 , CaF 2 , SrF 2 , BaF 2 、BeCl 2 MgCl 2 , CaCl 2 、SrCl 2 、BaCl 2 ,BeBr 2 MgBr 2 , CaBr 2 , SrBr 2 ,BaBr 2 ,BeI 2 MgI 2 ,CaI 2 , SrI 2 and BaI 2 wait.

[0387] Examples of transition metal halides may include titanium halides (eg, TiF 4 、TiCl 4 、TiBr 4 or TiI 4 etc.), zirconium halides (e.g., ZrF 4 、ZrCl 4 , ZrBr 4or ZrI 4 etc.), hafnium halides (e.g., HfF 4 , HfCl 4 , HfBr 4 or HfI 4 etc.), vanadium halides (e.g., VF 3 、VCl 3 , VBr 3 or VI 3 etc.), niobium halides (e.g., NbF 3 、NbCl 3 , NbBr 3 or NbI 3 etc.), tantalum halides (e.g., TaF 3 、TaCl 3 、TaBr 3 or TaI 3 etc.), chromium halides (e.g., CrF 3 CrCl 3 CrBr 3 or CrI 3 etc.), molybdenum halides (e.g., MoF 3 、MoCl 3 、MoBr 3 or MoI 3 etc.), tungsten halides (e.g., WF 3 、WCl 3 , WBr 3 or WI 3 etc.), manganese halides (e.g., MnF 2 、MnCl 2 、MnBr 2 or MnI 2 etc.), technetium halides (e.g., TcF 2 , TcCl 2 、TcBr 2 or TcI 2 etc.), rhenium halides (e.g., ReF 2 、ReCl 2 、ReBr 2 or ReI 2 etc.), ferrous halides (e.g., FeF 2 、FeCl 2 , FeBr 2 or FeI 2 etc.), ruthenium halides (e.g., RuF 2 、RuCl 2 ,RuBr 2 or RuI 2 etc.), osmium halides (e.g., OsF 2, OsCl 2 、OsBr 2 or OsI 2 etc.), cobalt halides (e.g., CoF 2 、CoCl 2 ,CoBr 2 or CoI 2 etc.), rhodium halides (e.g., RhF 2 , RhCl 2 , RhBr 2 or RhI 2 etc.), iridium halides (e.g., IrF 2 、IrCl 2 ,IrBr 2 or IrI 2 etc.), nickel halides (e.g., NiF 2 、NiCl 2 、NiBr 2 or NiI 2 etc.), palladium halides (e.g., PdF 2 , PdCl 2 , PdBr 2 or PdI 2 etc.), platinum halides (e.g., PtF 2 , PtCl 2 , PtBr 2 or PtI 2 etc.), cuprous halides (e.g., CuF, CuCl, CuBr or CuI, etc.), silver halides (e.g., AgF, AgCl, AgBr or AgI, etc.) and gold halides (e.g., AuF, AuCl, AuBr or AuI, etc.), etc.

[0388] Examples of late transition metal halides may include zinc halides (eg, ZnF 2 、ZnCl 2 、ZnBr 2 or ZnI 2 etc.), indium halides (e.g., InI 3 etc.) and tin halides (e.g., SnI 2 etc.

[0389] Examples of lanthanide metal halides may include YbF, YbF 2 , YbF 3 、SmF 3 , YbCl, YbCl 2 YbCl 3 、SmCl 3 , YbBr, YbBr 2 , YbBr 3 、SmBr3 、YbI、YbI 2 ,YbI 3 and SmI 3 wait.

[0390] Examples of metalloid halides may include antimony halides (eg, SbCl 5 etc.

[0391] Examples of metal tellurides may include alkali metal tellurides (eg, Li 2 Te、Na 2 Te, K 2 Te、Rb 2 Te or Cs 2 Te, etc.), alkaline earth metal tellurides (e.g., BeTe, MgTe, CaTe, SrTe, or 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 2 Te, CuTe, Ag 2 Te, AgTe or Au 2 Te, etc.), late transition metal tellurides (e.g., ZnTe, etc.) and lanthanide metal tellurides (e.g., LaTe, CeTe, PrTe, NdTe, PmTe, EuTe, GdTe, TbTe, DyTe, HoTe, ErTe, TmTe, YbTe or LuTe, etc.), etc.

[0392] [Emission layer 130]

[0393] When the light-emitting device 10 is a full-color light-emitting device, the emission layer 130 may be patterned into a red emission layer, a green emission layer, and / or a blue emission layer according to sub-pixels. In an embodiment, the emission layer 130 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 an embodiment, the emission layer 130 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.

[0394] In an embodiment, the emission layer 130 may include a host and a dopant. The dopant may include a phosphorescent dopant, a fluorescent dopant, or any combination thereof.

[0395] The amount of the dopant in the emission layer 130 may be in the range of about 0.01 parts by weight to about 15 parts by weight relative to 100 parts by weight of the host.

[0396] In an embodiment, the emission layer 130 may include quantum dots.

[0397] In an embodiment, the emission layer 130 may include a delayed fluorescent material. The delayed fluorescent material may be used as a host or a dopant in the emission layer 130.

[0398] The thickness of the emission layer 130 may be about to about For example, the thickness of the emission layer 130 may be about to about When the thickness of the emission layer 130 is within these ranges, excellent light emitting characteristics can be obtained without significantly increasing the driving voltage.

[0399] [main body]

[0400] The host may include a compound represented by Formula 301:

[0401] [Formula 301]

[0402] [Ar 301 ] xb11 -[(L 301 ) xb1 -R 301 ] xb21 .

[0403] In formula 301,

[0404] Ar 301 and L 301 may be each independently unsubstituted or substituted with at least one R 10a Substituted C 3 -C 60The carbocyclic group is either unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Heterocyclic group,

[0405] xb11 can be 1, 2 or 3,

[0406] xb1 may be an integer selected from 0 to 5,

[0407] R 301 It may be hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Alkyl, unsubstituted or substituted with at least one R 10a Substituted C 2 -C 60 Alkenyl, unsubstituted or substituted with at least one R 10a Substituted C 2 -C 60 Alkynyl, unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Alkoxy, 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 ),

[0408] xb21 may be an integer selected from 1 to 5, and

[0409] Q 301 To Q 303 Can be independently compared with reference Q 1 Same as described.

[0410] In an embodiment, in Formula 301, when xb11 is 2 or greater, two or more Ar 301 Can be connected to each other via a single bond.

[0411] In an embodiment, the host may include a compound represented by Formula 301-1, a compound represented by Formula 301-2, or any combination thereof:

[0412] [Formula 301-1]

[0413]

[0414] [Formula 301-2]

[0415]

[0416] In Formula 301-1 and Formula 301-2,

[0417] 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 group,

[0418] X 301 Can be O, S, N[(L 304 ) xb4 -R 304 ]、C(R 304 )(R 305 ) or Si(R 304 )(R 305 ),

[0419] xb22 and xb23 can each independently be 0, 1 or 2,

[0420] L 301 , xb1 and R 301 may each be the same as described herein,

[0421] L 302 To L 304 Can be independently as reference L 301 describe,

[0422] xb2 to xb4 may each independently be as described with reference to xb1, and

[0423] R 302 To R 305 and R 311 To R 314 Can be independently referred to as R 301 describe.

[0424] In embodiments, the host may include an alkaline earth metal complex, a late transition metal complex, or any combination thereof. In embodiments, the host may include a Be complex (eg, compound H55), a Mg complex, a Zn complex, or any combination thereof.

[0425] In an embodiment, the host may include one of Compound H1 to Compound H128, 9,10-di(2-naphthyl)anthracene (ADN), 2-methyl-9,10-bis(naphthalene-2-yl)anthracene (MADN), 9,10-di(2-naphthyl)-2-tert-butyl-anthracene (TBADN), 4,4'-bis(N-carbazolyl)-1,1'-biphenyl (CBP), 1,3-di(carbazol-9-yl)benzene (mCP), 1,3,5-tri(carbazol-9-yl)benzene (TCP), or any combination thereof:

[0426]

[0427]

[0428]

[0429]

[0430]

[0431]

[0432]

[0433] [Phosphorescent dopant]

[0434] The phosphorescent dopant may include at least one transition metal as a core metal.

[0435] In an embodiment, the phosphorescent dopant may include a monodentate ligand, a bidentate ligand, a tridentate ligand, a tetradentate ligand, a pentadentate ligand, a hexadentate ligand, or any combination thereof.

[0436] In embodiments, the phosphorescent dopant may be electrically neutral.

[0437] In an embodiment, the phosphorescent dopant may include an organometallic compound represented by Formula 401:

[0438] [Formula 401]

[0439] M(L 401 ) xc1 (L 402 ) xc2 .

[0440] In formula 401,

[0441] 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)),

[0442] L 401 may be a ligand represented by Formula 402, and xc1 may be 1, 2 or 3, wherein when xc1 is 2 or greater, two or more L 401 may be the same or different from each other,

[0443] L 402 may be an organic ligand, and xc2 may be 0, 1, 2, 3 or 4, wherein when xc2 is 2 or greater, two or more L 402 may be the same or different from each other,

[0444] [Formula 402]

[0445]

[0446] In formula 402, X 401 and X 402 can be independently N or C,

[0447] Ring A 401 and Ring A 402 Can be independently C 3 -C 60 Carbocyclic or C 1 -C 60 Heterocyclic group,

[0448] 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=*',

[0449] X 403 and X 404 can be independently 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 ),

[0450] Q 411 To Q 414 can each be independently referred to herein as Q 1 describe,

[0451] R 401 and R 402 can be independently hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, unsubstituted or substituted by at least one R 10a Substituted C 1 -C 20 Alkyl, unsubstituted or substituted with at least one R 10a Substituted C 1 -C 20 Alkoxy, 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 ),

[0452] Q 401 To Q 403 can each be independently referred to herein as Q 1 describe,

[0453] xc11 and xc12 may each independently be an integer selected from 0 to 10, and

[0454] * and *' in Formula 402 each indicate a binding site with M in Formula 401.

[0455] In an embodiment, in formula 402, X 401 may be nitrogen and X 402 Can be carbon, or X 401 and X 402 Each may be nitrogen.

[0456] In an embodiment, in Formula 401, when xc1 is 2 or greater, at least two L 401 The two rings A401 Optionally, T as a linking group 402 connected to each other, or at least two L 401 The two rings A 402 Optionally, T as a linking group 403 Connected to each other (see Compound PD1 to Compound PD4 and Compound PD7). 402 and T 403 Can be independently compared with reference T 401 Same as described.

[0457] 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, a -CN group, a phosphorus-containing group (e.g., a phosphine group or a phosphite group, etc.), or any combination thereof.

[0458] The phosphorescent dopant may include, for example, one of Compound PD1 to Compound PD39 or any combination thereof:

[0459]

[0460]

[0461]

[0462] [Fluorescent dopant]

[0463] The fluorescent dopant may include an amine-containing compound, a styrene-containing compound, or any combination thereof.

[0464] In an embodiment, the fluorescent dopant may include a compound represented by Formula 501:

[0465] [Formula 501]

[0466]

[0467] In formula 501,

[0468] Ar 501 , L 501 To L 503 , 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,

[0469] xd1 to xd3 may each independently be 0, 1, 2 or 3, and

[0470] xd4 can be 1, 2, 3, 4, 5 or 6.

[0471] For example, in Formula 501, Ar 501 It may be a condensed ring group in which three or more monocyclic groups are condensed together (for example, anthracenyl, 1,2-triphenylenyl, or pyrenyl, etc.).

[0472] In an embodiment, in formula 501, xd4 may be 2.

[0473] In an embodiment, the fluorescent dopant may include one of compounds FD1 to FD37, DPVBi, DPAVBi, or any combination thereof:

[0474]

[0475]

[0476]

[0477] [Delayed fluorescence material]

[0478] The emission layer 130 may include a delayed fluorescent material.

[0479] In the specification, the delayed fluorescent material may be selected from compounds capable of emitting delayed fluorescence based on a delayed fluorescence emission mechanism.

[0480] The delayed fluorescent material included in the emission layer 130 may serve as a host or a dopant depending on the types of other materials included in the emission layer 130 .

[0481] In an 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 in the range of about 0 eV to 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, 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.

[0482] In an embodiment, the delayed fluorescent material may include: at least one electron donor (eg, a π-electron-rich C 3 -C 60 Cyclic groups, such as carbazolyl) and at least one electron acceptor (e.g., sulfoxide, cyano, and π-electron-deficient nitrogen-containing C 1 -C 60or a material including at least two cyclic groups fused to each other and sharing boron (B). 8 -C 60 Polycyclic materials.

[0483] In an embodiment, the delayed fluorescent material may include at least one of Compound DF1 to Compound DF14:

[0484]

[0485]

[0486] [Quantum dot]

[0487] The emission layer 130 may include quantum dots.

[0488] In the specification, quantum dots may be crystals of semiconductor compounds. Quantum dots may emit light of various emission wavelengths according to the size of the crystals. Quantum dots may also emit light of various emission wavelengths by adjusting the ratio of elements constituting the quantum dots.

[0489] For example, the diameter of the quantum dots may be in the range of about 1 nm to about 10 nm.

[0490] Quantum dots can be synthesized by a wet chemical process, a metal organic chemical vapor deposition (MOCVD) process, a molecular beam epitaxy (MBE) process, or any similar process.

[0491] The wet chemical process is a method that includes mixing a precursor material with an organic solvent and then growing quantum dot particle crystals. When the quantum dot particle crystals grow, the organic solvent can naturally act as a dispersant coordinated on the surface of the quantum dot particle crystals, and the growth of the quantum dot particle crystals can be controlled. Therefore, the wet chemical method can be easier to perform than a vapor deposition process (such as metal organic chemical vapor deposition or molecular beam epitaxy), and the growth of quantum dot particle crystals can be controlled by a low-cost process.

[0492] 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 any combination thereof.

[0493] Examples of II-VI semiconductor compounds may include binary compounds such as CdS, CdSe, CdTe, ZnS, ZnSe, ZnTe, ZnO, HgS, HgSe, HgTe, MgSe, or MgS; ternary compounds such as CdSeS, CdSeTe, CdSTe, ZnSeS, ZnSeTe, ZnSTe, HgSeS, HgSeTe, HgSTe, CdZnS, Cd ZnSe, CdZnTe, CdHgS, CdHgSe, CdHgTe, HgZnS, HgZnSe, HgZnTe, MgZnSe or MgZnS, etc.; quaternary compounds, such as CdZnSeS, CdZnSeTe, CdZnSTe, CdHgSeS, CdHgSeTe, CdHgSTe, HgZnSeS, HgZnSeTe or HgZnSTe, etc.; or any combination thereof.

[0494] Examples of III-V semiconductor compounds may include binary compounds such as GaN, GaP, GaAs, GaSb, AlN, AlP, AlAs, AlSb, InN, InP, InAs, or InSb, etc.; ternary compounds such as GaNP, GaNAs, GaNSb, GaPAs, GaPSb, AlNP, AlNAs, AlNSb, AlPAs, AlPSb, InGaP, InNP, InAlP, InNAs, InNSb, InPAs, or InPSb, etc.; quaternary compounds such as GaAlNP, GaAlNAs, GaAlNSb, GaAlPAs, GaAlPSb, GaInNP, GaInNAs, GaInNSb, GaInPAs, GaInPSb, InAlNP, InAlNAs, InAlNSb, InAlPAs, or InAlPSb, etc.; or any combination 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 including the Group II element may include InZnP, InGaZnP, InAlZnP, and the like.

[0495] Examples of III-VI semiconductor compounds may include binary compounds such as GaS, GaSe, Ga 2 Se 3 、GaTe、InS、InSe、In 2 S 3 、In 2 Se 3 or InTe, etc.; ternary compounds, such as InGaS 3 or InGaSe 3 etc.; or any combination thereof.

[0496] Examples of Group I-III-VI semiconductor compounds may include: ternary compounds such as AgInS, AgInS 2 , AgInSe 2 , AgGaS, AgGaS 2 , AgGaSe 2 , CuInS, CuInS 2 , CuInSe 2 , CuGaS 2 , CuGaSe 2 , CuGaO 2 , AgGaO 2 or AgAlO 2 etc.; quaternary compounds such as AgInGaS 2 or AgInGaSe 2 etc.; or any combination thereof.

[0497] Examples of Group IV-VI semiconductor compounds may include: binary compounds such as SnS, SnSe, SnTe, PbS, PbSe or PbTe etc.; ternary compounds such as SnSeS, SnSeTe, SnSTe, PbSeS, PbSeTe, PbSTe, SnPbS, SnPbSe or SnPbTe etc.; quaternary compounds such as SnPbSSe, SnPbSeTe or SnPbSTe etc.; or any combination thereof.

[0498] Examples of Group IV elements or compounds may include: single-element materials such as Si or Ge etc.; binary compounds such as SiC or SiGe etc.; or any combination thereof.

[0499] Each element included in a multi-element compound (such as a binary compound, a ternary compound or a quaternary compound) may be present in the particles at a uniform concentration or at a non-uniform concentration. The above general formula refers to the types of elements included in each compound, and the element ratios in these compounds may be different from each other. For example, AgInGaS 2 may indicate AgIn x Ga 1-x S 2 (where x is a real number satisfying 0 < x < 1).

[0500] In an embodiment, the quantum dots may have a single structure (where the concentration of each element in the quantum dots is uniform), or the quantum dots may have a core-shell structure. For example, the materials included in the core and the materials included in the shell may be different from each other.

[0501] The shell of the quantum dot can be used as a protective layer to prevent chemical denaturation of the core to maintain semiconductor properties, and / or can be used as a charging layer to impart electrophoretic properties to the quantum dot. The shell can be a single layer or multiple layers. The interface between the core and the shell can have a concentration gradient, wherein the concentration of the element present in the shell decreases toward the center of the core.

[0502] Examples of the shell of the quantum dot may include metal oxides, metalloid oxides or non-metal oxides, semiconductor compounds, and any combination thereof. Examples of metal oxides, metalloid oxides or non-metal oxides may include: 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 or NiO; ternary compounds, such as MgAl 2 O 4 、CoFe 2 O 4 、NiFe 2 O 4 or CoMn 2 O 4 ; and any combination thereof. Examples of semiconductor compounds may include as described herein: Group III-VI semiconductor compounds; Group II-VI semiconductor compounds; Group III-V semiconductor compounds; Group III-VI semiconductor compounds; Group I-III-VI semiconductor compounds; Group IV-VI semiconductor compounds; or any combination thereof. For example, examples of semiconductor compounds may include CdS, CdSe, CdTe, ZnS, ZnSe, ZnTe, ZnSeS, ZnTeS, GaAs, GaP, GaS, GaSe, AgGaS, AgGaS 2 , GaSb, HgS, HgSe, HgTe, InAs, InP, InGaP, InSb, AlAs, AlP, AlSb or any combination thereof

[0503] Each element included in the multi-element compound (such as a binary compound or a ternary compound) may be present in the particle at a uniform concentration or at a non-uniform concentration. For example, a general formula may indicate the elements included in the compound, but the ratios of the elements in these compounds may be different from each other.

[0504] The quantum dot may have a full width at half maximum (FWHM) of an emission wavelength spectrum equal to or less than about 45 nm. For example, the FWHM of the emission wavelength spectrum is equal to or less than about 40 nm. For example, the quantum dot may have a FWHM of an emission wavelength spectrum equal to or less than about 30 nm. When the FWHM of the quantum dot is within any of the above ranges, color purity or color reproducibility may be improved. Light emitted by the quantum dot may be emitted in all directions so that a wide viewing angle may be improved.

[0505] In embodiments, the quantum dots may be in the form of spherical nanoparticles, pyramidal nanoparticles, multi-armed nanoparticles, cubic nanoparticles, nanotubes, nanowires, nanofibers, or nanoplates.

[0506] By adjusting the size of the quantum dots, the energy band gap can be adjusted, and therefore, light of various wavelengths can be obtained in the quantum dot emission layer. Therefore, by using quantum dots as described above (for example, by using quantum dots of different sizes or by changing the ratio of elements in the quantum dot compound), a light-emitting device that emits light of various wavelengths can be realized. In an embodiment, the size of the quantum dots or the ratio of elements in the quantum dot compound can be selected so that red light, green light and / or blue light can be emitted. In an embodiment, the quantum dots can be configured to emit white light by a combination of various colors of light.

[0507] [Electron transport region 140]

[0508] The electron transport region 140 may have a single-layer structure consisting of a layer (composed of a single material), a single-layer structure consisting of a layer including different materials, or a multi-layer structure including a plurality of layers (including different materials).

[0509] The electron transport region 140 may include a buffer layer, a hole blocking layer, an electron control layer, an electron transport layer, an electron injection layer, or any combination thereof.

[0510] For example, the electron transport region 140 may have an electron transport layer / electron injection layer structure, a hole blocking layer / electron transport layer / electron injection layer structure, an electron control layer / electron transport layer / electron injection layer structure, or a buffer layer / electron transport layer / electron injection layer structure, wherein the layers of each structure may be stacked from the emission layer 130 in their respective prescribed order, but the structure of the electron transport region 140 is not limited thereto.

[0511] The electron transport region 140 (eg, a buffer layer, a hole blocking layer, an electron control layer, or an electron transport layer in the electron transport region 140) may include a metal-free compound including at least one π-electron-deficient nitrogen-containing C 1 -C 60 Cyclic group.

[0512] For example, the electron transport region 140 may include a compound represented by Formula 601:

[0513] [Formula 601]

[0514] [Ar 601 ] xe11 -[(L 601 ) xe1 -R 601 ] xe21 .

[0515] In formula 601,

[0516] Ar 601 and L 601 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,

[0517] xe11 can be 1, 2 or 3,

[0518] xe1 can be 0, 1, 2, 3, 4 or 5,

[0519] 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 -C 60 Heterocyclic group, -Si(Q 601 )(Q 602 )(Q 603 )、-C(=O)(Q 601 )、-S(=O) 2 (Q 601 ) or -P(=O)(Q 601 )(Q 602 ),

[0520] Q 601 To Q 603 can each be independently referred to herein as Q 1 describe,

[0521] xe21 can be 1, 2, 3, 4, or 5, and

[0522] Ar 601 , L 601 and R 601 At least one of them may be independently unsubstituted or substituted by at least one R 10aSubstituted π-electron-deficient nitrogen-containing C 1 -C 60 Cyclic group.

[0523] In an embodiment, in Formula 601, when xe11 is 2 or greater, two or more Ar 601 Can be connected to each other via a single bond.

[0524] In an embodiment, in Formula 601, Ar 601 may be unsubstituted or substituted with at least one R 10a Substituted anthracenyl.

[0525] In an embodiment, the electron transport region 140 may include a compound represented by Formula 601-1:

[0526] [Formula 601-1]

[0527]

[0528] In formula 601-1,

[0529] X 614 Can be N or C(R 614 ), X 615 Can be N or C(R 615 ), X 616 Can be N or C(R 616 ), and X 614 To X 616 At least one of may be N,

[0530] L 611 To L 613 Can be independently compared with reference L 601 Same as described,

[0531] xe611 to xe613 can each independently be the same as described with reference to xe1,

[0532] R 611 To R 613 Can be independently compared with reference R 601 Same as described, and

[0533] R 614 To R 616 can be independently hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, C 1 -C 20 Alkyl, C 1 -C 20 Alkoxy, unsubstituted or substituted with at least one R 10a Substituted C 3 -C 60The carbocyclic group is either unsubstituted or substituted with at least one R 10a Substituted C 1 -C 60 Heterocyclic group.

[0534] For example, in Formula 601 and Formula 601-1, xe1 and xe611 to xe613 can each independently be 0, 1, or 2.

[0535] The electron transport region 140 may include one of the compounds ET1 to ET45, 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline (BCP), 4,7-diphenyl-1,10-phenanthroline (Bphen), Alq 3 , BAlq, TAZ, NTAZ or any combination thereof:

[0536]

[0537]

[0538]

[0539]

[0540] The thickness of the electron transport region 140 may be about to about For example, the thickness of the electron transport region 140 may be in the range of about to about When the electron transport region 140 includes a buffer layer, a hole blocking layer, an electron control layer, an electron transport layer, or any combination thereof, the thickness of the buffer layer, the hole blocking layer, or the electron control layer may be about 1000 nm. to about and the thickness of the electron transport layer can be in the range of about to about For example, the thickness of the buffer layer, the hole blocking layer, or the electron control layer may be independently about to about For example, the thickness of the electron transport layer may be in the range of 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 140 is within these ranges, satisfactory electron transport characteristics can be obtained without significantly increasing the driving voltage.

[0541] In addition to the aforementioned materials, the electron transport region 140 (eg, an electron transport layer in the electron transport region 140 ) may further include a metal-containing material.

[0542] The metal-containing material may include an alkali metal complex, an alkaline earth metal complex, or any combination thereof. The metal ions of the alkali metal complex may be Li ions, Na ions, K ions, Rb ions, or Cs ions, and the metal ions of the alkaline earth metal complex may be Be ions, Mg ions, Ca ions, Sr ions, or Ba ions.

[0543] The ligands coordinated to the metal ion of the alkali metal complex or the alkaline earth metal complex may each independently include hydroxyquinoline, hydroxyisoquinoline, hydroxybenzoquinoline, hydroxyacridine, hydroxyphenanthridine, hydroxyphenyloxazole, hydroxyphenylthiazole, hydroxyphenyloxadiazole, hydroxyphenylthiadiazole, hydroxyphenylpyridine, hydroxyphenylbenzimidazole, hydroxyphenylbenzothiazole, bipyridine, phenanthroline, cyclopentadiene, or any combination thereof.

[0544] 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:

[0545]

[0546] The electron transport region 140 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.

[0547] The electron injection layer may have a single-layer structure composed of a layer (composed of a single material), a single-layer structure composed of a layer including different materials, or a multilayer structure having a plurality of layers (including different materials).

[0548] The electron injection layer may include an alkali metal, an alkaline earth metal, a rare earth metal, an alkali metal-containing compound, an alkaline earth metal-containing compound, a rare earth metal-containing compound, an alkali metal complex, an alkaline earth metal complex, a rare earth metal complex, or any combination thereof.

[0549] The alkali metal may include Li, Na, K, Rb, Cs or any combination thereof. The alkaline earth metal may include Mg, Ca, Sr, Ba or any combination thereof. The rare earth metal may include Sc, Y, Ce, Tb, Yb, Gd or any combination thereof.

[0550] The alkali metal-containing compound, the alkaline earth metal-containing compound, and the rare earth metal-containing compound may be an oxide, a halide (eg, a fluoride, a chloride, a bromide, or an iodide), or a telluride of each of the alkali metal, the alkaline earth metal, and the rare earth metal, or any combination thereof.

[0551] The alkali metal compound may include: alkali metal oxides (such as Li 2 O、Cs 2 O and K 2O, etc.), alkali metal halides (such as LiF, NaF, CsF, KF, LiI, NaI, CsI, and KI, etc.) or any combination thereof. The alkaline earth metal compound may include alkaline earth metal oxides, such as BaO, SrO, CaO, Ba x Sr 1-x O (where x is a real number satisfying 0 < x < 1) and Ba x Ca 1-x O (where x is a real number satisfying 0 < x < 1), etc. The rare earth metal compound 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 3 or any combination thereof. In an embodiment, the rare earth metal compound may include lanthanide metal tellurides. Examples of lanthanide metal tellurides may include LaTe, CeTe, PrTe, NdTe, PmTe, SmTe, EuTe, GdTe, TbTe, DyTe, HoTe, ErTe, TmTe, YbTe, LuTe, La 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 and Lu 2 Te 3 etc.

[0552] The alkali metal complex, alkaline earth metal complex and rare earth metal complex may include one of the ions of alkali metal, alkaline earth metal and rare earth metal, and a ligand bonded to the metal ion, for example, hydroxyquinoline, hydroxyisoquinoline, hydroxybenzoquinoline, hydroxyacridine, hydroxyphenanthridine, hydroxyphenyloxazole, hydroxyphenylthiazole, hydroxyphenyloxadiazole, hydroxyphenylthiadiazole, hydroxyphenylpyridine, hydroxyphenylbenzimidazole, hydroxyphenylbenzothiazole, bipyridine, phenanthroline, cyclopentadiene or any combination thereof.

[0553] The electron injection layer may be composed of an alkali metal, an alkaline earth metal, a rare earth metal, an alkali metal-containing compound, an alkaline earth metal-containing compound, a rare earth metal-containing compound, an alkali metal complex, an alkaline earth metal complex, a rare earth metal complex or any combination thereof as described above, and may further include an organic material (e.g., a compound represented by Formula 601).

[0554] In an embodiment, the electron injection layer may be composed of an alkali metal compound (e.g., an alkali metal halide); or the electron injection layer may be composed of an alkali metal compound (e.g., an alkali metal halide) and an alkali metal, an alkaline earth metal, a rare earth metal, or any combination thereof. For example, the electron injection layer may be a KI:Yb co-deposition layer, a RbI:Yb co-deposition layer, or a LiF:Yb co-deposition layer, etc.

[0555] When the electron injection layer further includes 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 any combination thereof may be uniformly or non-uniformly dispersed in a matrix including the organic material.

[0556] The thickness of the electron injection layer can be about to about For example, the thickness of the electron injection layer may be about to about When the thickness of the electron injection layer is within these ranges, satisfactory electron injection characteristics can be obtained without significantly increasing the driving voltage.

[0557] [Second electrode 150]

[0558] The second electrode 150 may be disposed on the electron transport region 140. The second electrode 150 may be a cathode as an electron injection electrode. For example, as a material for forming the second electrode 150, metals, alloys, conductive compounds, or any combination thereof each having a low work function may be used.

[0559] The second electrode 150 may include lithium (Li), silver (Ag), magnesium (Mg), aluminum (Al), aluminum-lithium (Al-Li), calcium (Ca), magnesium-indium (Mg-In), magnesium-silver (Mg-Ag), ytterbium (Yb), silver-ytterbium (Ag-Yb), ITO, IZO or any combination thereof. The second electrode 150 may be a transmissive electrode, a semi-transmissive electrode or a reflective electrode.

[0560] The second electrode 150 may have a single-layer structure or a multi-layer structure.

[0561] [Capping layer]

[0562] The first capping layer may be arranged outside the first electrode 110, and / or the second capping layer may be arranged outside the second electrode 150. In an embodiment, the light emitting device 10 may have a structure in which the first capping layer, the first electrode 110, the interlayer, and the second electrode 150 are sequentially stacked in a prescribed order, a structure in which the first electrode 110, the interlayer, the second electrode 150 and the second capping layer are sequentially stacked in a prescribed order, or a structure in which the first capping layer, the first electrode 110, the interlayer, the second electrode 150 and the second capping layer may be sequentially stacked in a prescribed order.

[0563] The light generated in the emission layer 130 of the light emitting device 10 may pass through the first electrode 110 which may be a semi-transmissive electrode or a transmissive electrode and pass through the first capping layer to the outside. The light generated in the emission layer 130 of the light emitting device 10 may pass through the second electrode 150 which may be a semi-transmissive electrode or a transmissive electrode and pass through the second capping layer to the outside.

[0564] The first capping layer and the second capping layer may increase external emission efficiency based on the principle of constructive interference. Therefore, the light extraction efficiency of the light emitting device 10 may be increased, thereby improving the light emitting efficiency of the light emitting device 10.

[0565] Each of the first capping layer and the second capping layer may include a material having a refractive index equal to or greater than about 1.2 (with respect to a wavelength of about 460 nm).

[0566] The first capping layer and the second capping layer may each independently be an organic capping layer including an organic material, an inorganic capping layer including an inorganic material, or an organic-inorganic composite capping layer including an organic material and an inorganic material.

[0567] At least one of the first capping layer and the second capping layer may each independently include a carbocyclic compound, a heterocyclic compound, an amine-containing compound, a porphyrin derivative, a phthalocyanine derivative, a naphthalocyanine derivative, an alkali metal complex, an alkaline earth metal complex, or any combination thereof. The carbocyclic compound, the heterocyclic compound, and the amine-containing compound may be optionally substituted with a substituent including O, N, S, Se, Si, F, Cl, Br, I, or any combination thereof.

[0568] In an embodiment, at least one of the first capping layer and the second capping layer may each independently include an amine-containing compound.

[0569] In an embodiment, at least one of the first capping layer and the second capping layer may each independently include a compound represented by Formula 201, a compound represented by Formula 202, or any combination thereof.

[0570] In an embodiment, at least one of the first capping layer and the second capping layer may each independently include one of compounds HT28 to HT33, one of compounds CP1 to CP6, β-NPB, or any combination thereof:

[0571]

[0572] [membrane]

[0573] The electronic device may further include a film. For example, the film may be an optical member (or light control device) (e.g., a color filter, a color conversion member, a capping layer, a light extraction efficiency enhancement layer, a selective light absorption layer, a polarization layer, or a quantum dot content layer, etc.), a light shielding member (e.g., a light reflecting layer or a light absorbing layer, etc.), or a protective member (e.g., an insulating layer or a dielectric layer, etc.).

[0574] [Electronic equipment]

[0575] The light emitting device may be included in various electronic devices. In an embodiment, the electronic device including the light emitting device may be a display device or an authentication device, etc.

[0576] In addition to the light emitting device, the electronic device (e.g., a display device) may further include: a color filter, a color conversion layer, or a color filter and a color conversion layer. The color filter and / or the color conversion layer may be arranged in at least one direction of travel of the light emitted from the light emitting device. In an embodiment, the light emitted from the light emitting device may be blue light or white light. The light emitting device may be the same as described herein. In an embodiment, the color conversion layer may include quantum dots. The quantum dots may be, for example, quantum dots as described herein.

[0577] The electronic device may include a first substrate. The first substrate may include a plurality of sub-pixels, the color filter may include a plurality of color filter regions respectively corresponding to the plurality of sub-pixels, and the color conversion layer may include a plurality of color conversion regions respectively corresponding to the plurality of sub-pixels.

[0578] A pixel defining layer may be disposed between the plurality of sub-pixels to define each sub-pixel.

[0579] The color filter may further include a plurality of color filter regions and a light shielding pattern disposed between the plurality of color filter regions, and the color conversion layer may further include a plurality of color conversion regions and a light shielding pattern disposed between the plurality of color conversion regions.

[0580] The color filter region (or color conversion region) 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. 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, the color filter region (or color conversion region) may include quantum dots. For example, the first region may include red quantum dots, the second region may include green quantum dots, and the third region may not include quantum dots. The quantum dots may each be a quantum dot as described herein. The first region, the second region, and / or the third region may each further include a scatterer.

[0581] In an embodiment, the light emitting device may emit a first light, the first region may absorb the first light to emit a first-first color light, the second region may absorb the first light to emit a second-first color light, and the third region may absorb the first light to emit a third-first color light. In this regard, the first-first color light, the second-first color light, and the third-first color light may have different maximum emission wavelengths from each other. For example, the first light may be blue light, the first-first color light may be red light, the second-first color light may be green light, and the third-first color light may be blue light.

[0582] 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 one of the source electrode and the drain electrode may be electrically connected to one of the first electrode and the second electrode of the light emitting device.

[0583] The thin film transistor may further include a gate electrode, a gate insulating film, and the like.

[0584] The active layer may include crystalline silicon, amorphous silicon, an organic semiconductor, an oxide semiconductor, or the like.

[0585] The electronic device may further include an encapsulation unit for encapsulating the light-emitting device. The encapsulation unit may be arranged between the color filter and / or the color conversion layer and the light-emitting device. The encapsulation unit may allow light to pass from the light-emitting device to the outside and may simultaneously prevent air and moisture from penetrating into the light-emitting device. The encapsulation unit may be an encapsulation substrate including a transparent glass substrate or a plastic substrate. The encapsulation unit may be a thin film encapsulation layer including an organic layer and an inorganic layer. When the encapsulation unit is a thin film encapsulation layer, the electronic device may be flexible.

[0586] In addition to the color filter and / or color conversion layer, various functional layers may be further included on the packaging unit depending on the purpose of the electronic device. Examples of functional layers may include a touch screen layer and a polarization layer, etc. The touch screen layer may be a resistive touch screen layer, a capacitive touch screen layer, or an infrared beam touch screen layer. For example, the authentication device may be a biometric authentication device that identifies an individual by using biometric information of a living body (e.g., a fingertip or a pupil, etc.).

[0587] In addition to the light emitting device as described above, the authentication device may further include a biometric information collector.

[0588] The electronic device can be applied to various displays, light sources, lighting equipment, personal computers (e.g., mobile personal computers), mobile phones, digital cameras, electronic notebooks, electronic dictionaries, electronic game consoles, medical devices (e.g., electronic thermometers, blood pressure meters, blood glucose meters, pulse measuring devices, pulse wave measuring devices, electrocardiogram recorders, ultrasonic diagnostic devices or endoscope displays), fish finders, various measuring devices, instruments (e.g., instruments for cars, airplanes or ships) and projectors.

[0589] [Electronic equipment]

[0590] Light emitting devices may be included in various electronic devices.

[0591] In an embodiment, the electronic equipment including the light emitting device may be a flat panel display, a curved display, a computer monitor, a medical monitor, a television (TV), 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 mobile phone, a tablet 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, an augmented reality display, a vehicle, a video wall with multiple displays tiled together, a theater screen, a stadium screen, a light therapy device, or a sign.

[0592] Since the light emitting device has excellent effects in terms of light emitting efficiency and long life, etc., electronic equipment including the light emitting device can have characteristics such as high brightness, high resolution, and low power consumption.

[0593] [ Figure 2 and Figure 3 Description]

[0594] Figure 2 is a schematic cross-sectional view of an electronic device according to an embodiment; and

[0595] Figure 2The electronic device (eg, a light emitting device) may include a substrate 100 , a thin film transistor TFT, a light emitting device, and an encapsulation unit 300 .

[0596] 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 penetration of impurities through the substrate 100 and may provide a flat surface on the substrate 100.

[0597] 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.

[0598] The active layer 220 may include an inorganic semiconductor such as silicon or polysilicon, an organic semiconductor, or an oxide semiconductor, and may include a source region, a drain region, and a channel region.

[0599] 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 .

[0600] 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 to insulate the gate electrode 240 from the source electrode 260 and between the gate electrode 240 and the drain electrode 270 to insulate the gate electrode 240 from the drain electrode 270.

[0601] 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 contact exposed portions of the source and drain regions of active layer 220, respectively.

[0602] 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 any combination thereof. The light emitting device may be provided on the passivation layer 280. The light emitting device may include a first electrode 110, an interlayer, and a second electrode 150.

[0603] The first electrode 110 may be disposed on the passivation layer 280. The passivation layer 280 may not completely cover the drain electrode 270 and may expose a portion of the drain electrode 270. The first electrode 110 may be electrically connected to the exposed portion of the drain electrode 270.

[0604] A pixel defining layer 290 including an insulating material may be disposed on the first electrode 110. The pixel defining layer 290 may expose a selected region of the first electrode 110, and an interlayer may be formed in the exposed region of the first electrode 110. The pixel defining layer 290 may be a polyimide-based organic film or a polyacrylic organic film. Figure 2 2 , but at least some layers of the interlayer may extend to an upper portion of the pixel defining layer 290 and may be provided in the form of a common layer.

[0605] The second electrode 150 may be disposed on the interlayer, and the capping layer 170 may be further formed on the second electrode 150. The capping layer 170 may be formed to cover the second electrode 150.

[0606] The encapsulation unit 300 may be disposed on the capping layer 170. The encapsulation unit 300 may be disposed on the light emitting device to protect the light emitting device from moisture or oxygen. The encapsulation unit 300 may include an inorganic film including silicon nitride (SiN x ), silicon oxide (SiO x ), indium tin oxide, indium zinc oxide or any combination thereof; an organic film comprising polyethylene terephthalate, polyethylene naphthalate, polycarbonate, polyimide, polyethylene sulfonate, polyoxymethylene, polyaromatic ester, hexamethyldisiloxane, an acrylic resin (e.g., polymethyl methacrylate or polyacrylic acid, etc.), an epoxy resin (e.g., aliphatic glycidyl ether (AGE), etc.) or any combination thereof; or any combination of an inorganic film and an organic film.

[0607] Figure 3 is a schematic cross-sectional view of an electronic device according to another embodiment.

[0608] Figure 3 An electronic device (eg, a light emitting device) and Figure 2 The electronic device of the present invention may differ in that at least the light shielding pattern 500 and the functional area 400 are further included on the packaging unit 300. The functional area 400 may be a color filter area, a color conversion area, or a combination of a color filter area and a color conversion area. In an embodiment, Figure 3 The light-emitting device included in the electronic device may be a series light-emitting device.

[0609] [ Figure 4 Description]

[0610] Figure 4 is a schematic perspective view of an electronic device 1 including a light emitting device according to an embodiment.

[0611] The electronic device 1 that can be used as a device for displaying moving images or still images can be not only a portable electronic device such as a mobile phone, a smart phone, a tablet personal computer (PC), a mobile communication terminal, an electronic notebook computer, an electronic book, a portable multimedia player (PMP), a navigation device or an ultra mobile PC (UMPC), but also various products such as a television (TV), a laptop computer, a monitor, a billboard or an Internet of Things (IOT) device. The electronic device 1 can be any product as described above or a part thereof.

[0612] In an embodiment, the electronic device 1 may be: a wearable device such as a smart watch, a watch phone, a glasses-type display, or a head-mounted display (HMD); or a part of a wearable device. However, the embodiment is not limited thereto.

[0613] For example, the electronic device 1 may be a dashboard of a vehicle, a center information display (CID) arranged on a central instrument panel or dashboard of the vehicle, an interior rearview mirror display replacing a side mirror of the vehicle, an entertainment display for a rear seat of the vehicle, a display arranged on a backrest of a front seat, a head-up display (HUD) installed in front of the vehicle or projected on a front windshield, or a computer generated hologram augmented reality head-up display (CGH AR HUD). For convenience of explanation, Figure 4 An embodiment is explained in which the electronic device 1 is a smart phone.

[0614] The electronic device 1 may include a display area DA and a non-display area NDA outside the display area DA. The electronic device 1 may realize an image through a two-dimensional array of pixels arranged in the display area DA.

[0615] The non-display area NDA is an area where no image is displayed, and may surround (e.g., entirely surround) the display area DA. A driver for providing an electrical signal or power to a display device arranged in the display area DA may be arranged in the non-display area NDA. A pad that may be electrically connected to an electronic component or a printed circuit board, etc. may be arranged in the non-display area NDA.

[0616] 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 As explained in , the length in the x-axis direction may be shorter than the length in the y-axis direction. In an embodiment, the length in the x-axis direction may be the same as the length in the y-axis direction. In another embodiment, the length in the x-axis direction may be longer than the length in the y-axis direction.

[0617] [ Figure 5 and FIG. 6A to FIG. 6C Description]

[0618] Figure 5is a schematic perspective view of the exterior of a vehicle 1000 as an electronic device including a light emitting device according to an embodiment.

[0619] FIG. 6A to FIG. 6C Each is a schematic diagram of the interior of vehicle 1000 according to an embodiment.

[0620] See also Figure 5 and FIG. 6A to FIG. 6C The vehicle 1000 may refer to various devices for moving an object to be transported (such as a person, an object, or an animal) from a starting point to a destination point. Examples of the vehicle 1000 may include a vehicle traveling on a road or track, a ship moving on an ocean or a river, and an airplane flying in the air using the action of air.

[0621] The vehicle 1000 may travel on a road or a track. The vehicle 1000 may move in a given direction according to the rotation of at least one wheel. Examples of 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.

[0622] The vehicle 1000 may include a body having an interior and an exterior, and a chassis other than the body in which mechanical equipment required for driving is installed. The exterior of the body may include a front panel, a hood, a roof panel, a rear panel, a trunk, and pillars provided at the boundaries between the doors, etc. The chassis of the vehicle 1000 may include a power generation device, a power transmission device, a drive device, a steering device, a brake device, a suspension device, a transmission device, a fuel device, a front wheel, a rear wheel, a left wheel, and a right wheel, etc.

[0623] The vehicle 1000 may include side windows 1100 , a front window 1200 , side mirrors 1300 , an instrument cluster 1400 , a center instrument panel 1500 , a passenger seat instrument panel 1600 , and a display device 2 .

[0624] 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 .

[0625] The side window glass 1100 may be installed on the side of the vehicle 1000. In an embodiment, the side window glass 1100 may be installed in a 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 instrument cluster 1400, and the second side window glass 1120 may be arranged adjacent to the passenger seat instrument panel 1600.

[0626] In an embodiment, the side window glass 1100 may be spaced apart from each other in the x-axis direction or in a direction opposite to the x-axis 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-axis direction or in a direction opposite to the x-axis direction. For example, the virtual straight line L connecting the side window glass 1100 may extend in the x-axis direction or in a direction opposite to the x-axis 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-axis direction or in a direction opposite to the x-axis direction.

[0627] 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.

[0628] The side view mirror 1300 may provide a rear view of the vehicle 1000. The side view mirror 1300 may be mounted on the exterior of the vehicle body. In an embodiment, a plurality of side view mirrors 1300 may be provided. One of the plurality of side view mirrors 1300 may be arranged outside the first side window glass 1110, and another of the plurality of side view mirrors 1300 may be arranged outside the second side window glass 1120.

[0629] Instrument cluster 1400 may be arranged in front of the steering wheel. Instrument cluster 1400 may include a tachometer, a speedometer, a coolant temperature gauge, a fuel gauge, a turn signal indicator, a high beam indicator, a warning light, a seat belt warning light, an odometer, a speed recorder, an automatic shift lever indicator light, a door open warning light, an engine oil warning light, and / or a low fuel warning light.

[0630] The center instrument panel 1500 may include a control panel on which buttons for adjusting an audio device, an air conditioning device, and a seat heater are provided. The center instrument panel 1500 may be disposed on one side of the instrument cluster 1400 .

[0631] The passenger seat instrument panel 1600 may be spaced apart from the instrument cluster 1400, and the center instrument panel 1500 may be disposed between the instrument cluster 1400 and the passenger seat instrument panel 1600. In an embodiment, the instrument cluster 1400 may be disposed to correspond to a driver's seat (not shown), and the passenger seat instrument panel 1600 may be disposed to correspond to a passenger seat (not shown). In an embodiment, the instrument cluster 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.

[0632] 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 in at least one of the instrument cluster 1400, the center instrument panel 1500, and the passenger seat instrument panel 1600.

[0633] The display device 2 may include an organic light emitting display device, an inorganic electroluminescent (EL) display device, or a quantum dot display device, etc. Hereinafter, an organic light emitting display apparatus including a light emitting device according to an embodiment will be described as an example of the display device 2. However, various types of display devices as described herein may be used as embodiments.

[0634] See also Fig. 6A , the display device 2 may be arranged in the center instrument panel 1500. In an embodiment, the display device 2 may display navigation information. In an embodiment, the display device 2 may display information about audio settings, video settings, or vehicle settings.

[0635] See also Figure 6B , the display device 2 may be arranged in the instrument cluster 1400. In this regard, the instrument cluster 1400 may display driving information and the like through the display device 2. For example, the instrument cluster 1400 may digitally implement driving information. The instrument cluster 1400 may digitally display vehicle information and driving information as images. For example, the needle and measurement of the tachometer and various warning lights or icons may be displayed through digital signals.

[0636] See also Figure 6C , the display device 2 may be arranged in 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 an image related to the information displayed on the instrument cluster 1400 and / or the information displayed on the center instrument panel 1500. In an embodiment, the display device 2 arranged on the passenger seat instrument panel 1600 may display information different from the information displayed on the instrument cluster 1400 and / or different from the information displayed on the center instrument panel 1500.

[0637] [Manufacturing method]

[0638] Various layers included in the hole transport region 120, the emission layer 130, and the electron transport region 140 may be formed in selected regions by using various methods such as vacuum deposition, spin coating, casting, Langmuir-Brokett (LB) method, inkjet printing, laser printing, and laser induced thermal imaging (LITI).

[0639] When the various layers included in the hole transport region 120, the emission layer 130, and the electron transport region 140 are formed by vacuum deposition, the deposition temperature may be within a range of about 100° C. to about 500° C., about 10 -8 About 10 -3 Torr vacuum and about / second to about The deposition is carried out at a deposition rate in the range of 200 Å / s.

[0640] [Definition of terms]

[0641] As used herein, the term "C 3 -C 60 The "carbocyclic group" may be a cyclic group consisting of only carbon atoms as ring-constituting atoms and having 3 to 60 carbon atoms.

[0642] As used herein, the term "C 1 -C 60 The "heterocyclic group" may be a cyclic group having 1 to 60 carbon atoms and further having at least one hetero atom as a ring-constituting atom in addition to the carbon atoms.

[0643] C 3 -C 60 Carbocyclic 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 heterocyclic group can have 3 to 61 ring-forming atoms.

[0644] As used herein, the term "cyclic group" may be C 3 -C 60 Carbocyclic or C 1 -C 60 Heterocyclic group.

[0645] As used herein, the term "π-electron-rich C 3 -C 60 The "cyclic group" may be a cyclic group having 3 to 60 carbon atoms and may not include *-N=*' as a ring-forming part.

[0646] As used herein, the term "π-electron-deficient nitrogen-containing C 1 -C 60 The "cyclic group" may be a heterocyclic group having 1 to 60 carbon atoms and including *-N=*' as a ring-forming part.

[0647] In an embodiment,

[0648] C 3 -C 60 The carbocyclic group may be a T1 group, or a cyclic group in which two or more T1 groups are fused to each other (e.g., cyclopentadienyl, adamantyl, norbornyl, phenyl, pentalenyl, naphthyl, azulenyl, indacenyl, acenaphthenyl, phenalenyl, phenanthrenyl, anthracenyl, fluoranthenyl, triphenylene, pyrenyl, 1,2-triphenylene, peryl, pentaphenanthrenyl, heptalenyl, tetracenyl, phenanthrenyl, hexenyl, pentacenyl, rubenyl, coronenyl, ovalenyl, indenyl, fluorenyl, spirobifluorenyl, benzofluorenyl, indenophenanthrenyl, or indenoanthryl),

[0649] C 1 -C 60 The heterocyclic group may be a T2 group, a group in which two or more T2 groups are fused to each other, or a group in which at least one T2 group and at least one T1 group are fused to each other (e.g., a pyrrolyl group, a thienyl group, a furyl group, an indolyl group, a benzindolyl group, a naphthoindolyl group, an isoindolyl group, a benzisoindolyl group, a naphthoisoindolyl group, a benzothioyl group, a benzothiophenyl group, a benzofuranyl group, a carbazolyl group, a dibenzothioyl group, a dibenzothiophenyl group, a dibenzofuranyl group, an indenocarbazolyl group, an indolcarbazolyl group, a benzofuranocarbazolyl group, a benzothiophenylcarbazolyl group, a benzothiophenylcarbazolyl group, a benzothiophenylcarbazolyl group, a benzothiophenylcarbazolyl group, a benzoindolcarbazolyl group, a benzocarbazolyl group, a benzonaphthofuranyl group, a benzonaphthothiophenyl group, a benzonaphthothioyl group, a benzofuranodibenzofuranodibenzothiophenyl group, a ... , benzothiophene and dibenzothiophenyl, pyrazolyl, imidazolyl, triazolyl, oxazolyl, isoxazolyl, oxadiazolyl, thiazolyl, isothiazolyl, thiadiazolyl, benzopyrazolyl, benzimidazolyl, benzoxazolyl, benzisoxazolyl, benzothiazolyl, benzisothiazolyl, pyridyl, pyrimidinyl, pyrazinyl, pyridazinyl, triazinyl, quinolyl, isoquinolyl, benzoquinolyl, benzo quinolinyl, quinoxalinyl, benzoquinoxalinyl, quinazolinyl, benzoquinazolinyl, phenanthrolinyl, cinnolinyl, phthalazinyl, naphthyridinyl, imidazopyridinyl, imidazopyrimidinyl, imidazotriazine, imidazopyrazinyl, imidazopyridazinyl, azacarbazolyl, azafluorenyl, azadibenzothioyl, azadibenzothiophenyl, azadibenzofuranyl or xanthenyl),

[0650] Pi-electron-rich C 3 -C 60 The cyclic group may be a T1 group, a group in which two or more T1 groups are fused to each other, a T3 group, a group in which two or more T3 groups are fused to each other, or a group in which at least one T3 group and at least one T1 group are fused to each other (e.g., C 3 -C 60carbocyclyl, 1H-pyrrolyl, thiolyl, borocyclopentyl, 2H-pyrrolyl, 3H-pyrrolyl, thienyl, furyl, indolyl, benzindolyl, naphthoindolyl, isoindolyl, benzisoindolyl, naphthoisoindolyl, benzothiolyl, benzothiophenyl, benzofuranyl, carbazolyl, dibenzothiolyl, dibenzothiophenyl, dibenzofuranyl, indenocarbazolyl, indolecarbazolyl, benzofuranocarbazolyl, benzothiophenylcarbazolyl, benzothiophenylcarbazolyl, benzothiophenylcarbazolyl, benzothiophenylcarbazolyl, benzoindolcarbazolyl, benzocarbazolyl, benzonaphthofuranyl, benzonaphthothienyl, benzonaphthothiolyl, benzofuranodibenzofuranyl, benzofuranodibenzothiophenyl or benzothiophenyldibenzothiophenyl, and the like), and

[0651] π-electron-deficient nitrogen-containing C 1 -C 60 The cyclic group may be a T4 group, a group in which two or more T4 groups are fused to each other, a group in which at least one T4 group and at least one T1 group are fused to each other, a group in which at least one T4 group and at least one T3 group are fused to each other, or a group in which at least one T4 group, at least one T1 group and at least one T3 group are fused to each other (e.g., pyrazolyl, imidazolyl, triazolyl, oxazolyl, isoxazolyl, oxadiazolyl, thiazolyl, isothiazolyl, thiadiazolyl, benzopyrazolyl, benzimidazolyl, benzooxazolyl, oxazolyl, benzoisoxazolyl, benzothiazolyl, benzisothiazolyl, pyridinyl, pyrimidinyl, pyrazinyl, pyridazinyl, triazinyl, quinolyl, isoquinolyl, benzoquinolyl, benzisoquinolyl, quinoxalinyl, benzoquinoxalinyl, quinazolinyl, benzoquinazolinyl, phenanthrolinyl, cinnolinyl, phthalazinyl, naphthyridinyl, imidazopyridinyl, imidazopyrimidinyl, imidazotriazinyl, imidazopyrazinyl, imidazopyridazinyl, azacarbazolyl, azafluorenyl, azadibenzothiolsyl, azadibenzothiophenyl and azadibenzofuranyl).

[0652] The T1 group can be cyclopropane, cyclobutane, cyclopentane, cyclohexane, cycloheptane, cyclooctane, cyclobutenyl, cyclopentenyl, cyclopentadienyl, cyclohexenyl, cyclohexadienyl, cycloheptenyl, adamantyl, norbornane (or bicyclo[2.2.1]heptane) group, norbornyl, bicyclo[1.1.1]pentane, bicyclo[2.1.1]hexane, bicyclo[2.2.2]octane or phenyl,

[0653] The T2 group can be furanyl, thienyl, 1H-pyrrolyl, thiolyl, borocyclopentyl, 2H-pyrrolyl, 3H-pyrrolyl, imidazolyl, pyrazolyl, triazolyl, tetrazolyl, oxazolyl, isoxazolyl, oxadiazolyl, thiazolyl, isothiazolyl, thiadiazolyl, azathiarolyl, azaborolyl, pyridyl, pyrimidinyl, pyrazinyl, pyridazinyl, triazinyl, tetraazinyl, pyrrolidinyl, imidazolidinyl, dihydropyrrolyl, piperidinyl, tetrahydropyridinyl, dihydropyridinyl, hexahydropyrimidinyl, tetrahydropyrimidinyl, dihydropyrimidinyl, piperazinyl, tetrahydropyrazinyl, dihydropyrazinyl, tetrahydropyridazinyl or dihydropyridazinyl,

[0654] The T3 group may be furanyl, thienyl, 1H-pyrrolyl, thiolsyl or borocyclopentadienyl, and

[0655] The T4 group can be 2H-pyrrolyl, 3H-pyrrolyl, imidazolyl, pyrazolyl, triazolyl, tetrazolyl, oxazolyl, isoxazolyl, oxadiazolyl, thiazolyl, isothiazolyl, thiadiazolyl, azathioyl, azaborolyl, pyridyl, pyrimidinyl, pyrazinyl, pyridazinyl, triazinyl or tetrazinyl.

[0656] As used herein, the terms "cyclic group", "C 3 -C 60 Carbocyclic group, "C 1 -C 60 Heterocyclic group", "π-electron-rich C 3 -C 60 Cyclic group" or "π-electron-deficient nitrogen-containing C 1 -C 60 The term "cyclic group" refers to a monovalent or polyvalent group (eg, a divalent group, a trivalent group, a tetravalent group, etc.) fused to (eg, bonded together with) a cyclic group.

[0657] For example, "phenyl" may be benzo, phenyl or phenylene, etc., and those skilled in the art may easily understand these groups based on the structure of the general formula including "phenyl".

[0658] Unit Price C 3 -C 60 Carbocyclic or monovalent C 1 -C 60 Examples of the heterocyclic group may include C 3 -C 10 Cycloalkyl, C 1 -C 10 Heterocycloalkyl, C 3 -C 10 Cycloalkenyl, C 1 -C 10 Heterocycloalkenyl, C 6 -C 60 Aryl, C1 -C 60 heteroaryl, a monovalent non-aromatic fused polycyclic group, and a monovalent non-aromatic fused heteropolycyclic group.

[0659] Bivalent C 3 -C 60 Carbocyclic or divalent C 1 -C 60 Examples of the heterocyclic group may include C 3 -C 10 Cycloalkylene, C 1 -C 10 Heterocycloalkylene, C 3 -C 10 Cycloalkenylene, C 1 -C 10 Heterocycloalkenylene, C 6 -C 60 Arylene, C 1 -C 60 a heteroarylene group, a divalent non-aromatic fused polycyclic group, and a divalent non-aromatic fused heteropolycyclic group.

[0660] As used herein, the term "C 1 -C 60 The “alkyl group” may be a linear or branched aliphatic hydrocarbon monovalent group having 1 to 60 carbon atoms, and examples thereof may include methyl, ethyl, n-propyl, isopropyl, n-butyl, sec-butyl, isobutyl, tert-butyl, n-pentyl, tert-pentyl, neopentyl, isopentyl, sec-pentyl, 3-pentyl, sec-isopentyl, n-hexyl, isohexyl, sec-hexyl, tert-hexyl, n-heptyl, isoheptyl, sec-heptyl, tert-heptyl, n-octyl, isooctyl, sec-octyl, tert-octyl, n-nonyl, isononyl, sec-nonyl, tert-nonyl, n-decyl, isodecyl, sec-decyl, and tert-decyl.

[0661] As used herein, the term "C 1 -C 60 The "alkylene" may be 1 -C 60 The alkyl group has substantially the same structure as a divalent group.

[0662] As used herein, the term "C 2 -C 60 The "alkenyl" may be 2 -C 60 The 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 may include ethenyl, propenyl, butenyl, and the like.

[0663] As used herein, the term "C 2 -C 60 "Alkenylene" can be 2 -C 60The alkenyl group has a divalent group having substantially the same structure.

[0664] As used herein, the term "C 2 -C 60 "Alkynyl" may be 2 -C 60 The alkyl group is a monovalent hydrocarbon group having at least one carbon-carbon triple bond in the middle or at the terminal, and examples thereof may include ethynyl, propynyl, and the like.

[0665] As used herein, the term "C 2 -C 60 "Alkyne" can be 2 -C 60 Alkynyl groups have substantially the same structure as a divalent group.

[0666] As used herein, the term "C 1 -C 60 "Alkoxy" may be -O(A 101 )(where A 101 Can be C 1 -C 60 The monovalent group represented by an alkyl group may include a methoxy group, an ethoxy group, an isopropoxy group, and the like.

[0667] As used herein, the term "C 3 -C 10 The "cycloalkyl" may be a monovalent saturated hydrocarbon ring group having 3 to 10 carbon atoms, and examples thereof may include cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl, cyclooctyl, adamantyl, norbornyl (or bicyclo[2.2.1]heptyl), bicyclo[1.1.1]pentyl, bicyclo[2.1.1]hexyl and bicyclo[2.2.2]octyl, and the like.

[0668] As used herein, the term "C 3 -C 10 The cycloalkylene group may be 3 -C 10 The cycloalkyl group has a divalent group having substantially the same structure.

[0669] As used herein, the term "C 1 -C 10 The "heterocycloalkyl group" may be a monovalent cyclic group having 1 to 10 carbon atoms and further including at least one hetero atom as a ring-constituting atom in addition to the carbon atoms, and examples thereof are 1,2,3,4-oxatriazolidinyl, tetrahydrofuranyl, tetrahydrothienyl and the like.

[0670] As used herein, the term "C 1 -C 10 The heterocycloalkylene group may be 1 -C10 The heterocycloalkyl group has substantially the same structure as a divalent group.

[0671] As used herein, the term "C 3 -C 10 The "cycloalkenyl group" may be a monovalent cyclic group having 3 to 10 carbon atoms and at least one carbon-carbon double bond in its cyclic structure and having no aromaticity, and examples thereof may include cyclopentenyl, cyclohexenyl, cycloheptenyl, and the like.

[0672] As used herein, the term "C 3 -C 10 The cycloalkenylene group may be 3 -C 10 The cycloalkenyl group has a divalent group having substantially the same structure.

[0673] As used herein, the term "C 1 -C 10 The "heterocycloalkenyl group" may be a monovalent cyclic group having 1 to 10 carbon atoms, further including at least one heteroatom as a ring-constituting atom in addition to carbon atoms in its cyclic structure and having at least one double bond. 1 -C 10 Examples of the heterocycloalkenyl group may include 4,5-dihydro-1,2,3,4-oxatriazolyl, 2,3-dihydrofuranyl, 2,3-dihydrothienyl, and the like.

[0674] As used herein, the term "C 1 -C 10 The heterocycloalkenylene group may be 1 -C 10 The heterocycloalkenyl group has a divalent group having substantially the same structure.

[0675] As used herein, the term "C 6 -C 60 The "aryl group" may be a monovalent group of a carbocyclic aromatic system having 6 to 60 carbon atoms.

[0676] As used herein, the term "C 6 -C 60 The "arylene group" may be a divalent group of a carbocyclic aromatic system having 6 to 60 carbon atoms.

[0677] C 6 -C 60 Examples of aryl groups may include phenyl, pentalenyl, naphthyl, azulenyl, indacenyl, acenaphthenyl, phenaltenyl, phenanthrenyl, anthracenyl, fluoranthenyl, triphenylene, pyrenyl, 1,2-triphenylenyl, perylenyl, pentaphenanthrenyl, heptalenyl, tetracenyl, perphenanthrenyl, hexacecenyl, pentacecenyl, rubenyl, coronenyl, and ovacenyl, and the like.

[0678] When C 6 -C 60 Aryl and C 6 -C 60 The arylene groups each include two or more rings, and the respective rings may be fused to each other.

[0679] As used herein, the term "C 1 -C 60 The "heteroaryl group" may be a monovalent group which is a heterocyclic aromatic system having 1 to 60 carbon atoms and further includes at least one heteroatom as a ring-constituting atom in addition to the carbon atoms.

[0680] As used herein, the term "C 1 -C 60 The "heteroarylene group" may be a divalent group which has a heterocyclic aromatic system having 1 to 60 carbon atoms and further includes at least one heteroatom as a ring-constituting atom in addition to the carbon atoms.

[0681] C 1 -C 60 Examples of heteroaryl groups may include pyridyl, pyrimidinyl, pyrazinyl, pyridazinyl, triazinyl, quinolyl, benzoquinolyl, isoquinolyl, benzoisoquinolyl, quinoxalinyl, benzoquinoxalinyl, quinazolinyl, benzoquinazolinyl, cinnolinyl, phenanthrolinyl, phthalazinyl, and naphthyridinyl.

[0682] When C 1 -C 60 Heteroaryl and C 1 -C 60 The heteroarylene groups each include two or more rings, and the respective rings may be fused to each other.

[0683] The term "monovalent non-aromatic fused polycyclic group" as used herein may be a monovalent group (e.g., having 8 to 60 carbon atoms) having two or more rings fused to each other, only carbon atoms as ring-forming atoms, and no aromaticity in its molecular structure as a whole. Examples of the monovalent non-aromatic fused polycyclic group may include indenyl, fluorenyl, spirobifluorenyl, benzofluorenyl, indenophenanthryl, indenoanthryl, and the like.

[0684] The term "divalent non-aromatic condensed polycyclic group" as used herein may be a divalent group having substantially the same structure as the above-mentioned monovalent non-aromatic condensed polycyclic group.

[0685] The term “monovalent non-aromatic fused heteropolycyclic group” as used herein may be a monovalent group (for example, having 1 to 60 carbon atoms) having two or more rings fused to each other, further including at least one heteroatom as a ring-constituting atom in addition to carbon atoms, and having no aromaticity in its molecular structure as a whole. Examples of the monovalent non-aromatic condensed heteropolycyclic group may include pyrrolyl, thienyl, furanyl, indolyl, benzindolyl, naphthoindolyl, isoindolyl, benzisoindolyl, naphthoisoindolyl, benzothioyl, benzothiophenyl, benzofuranyl, carbazolyl, dibenzothioyl, dibenzothiophenyl, dibenzofuranyl, azacarbazolyl, azafluorenyl, azadibenzothioyl, azadibenzothiophenyl, azadibenzofuranyl, pyrazolyl, imidazolyl, triazolyl, tetrazolyl, oxazolyl, isoxazolyl, thiazolyl, isothiazolyl, oxadiazolyl, thiadiazolyl , benzopyrazolyl, benzimidazolyl, benzoxazolyl, benzothiazolyl, benzoxadiazolyl, benzothiadiazolyl, imidazopyridinyl, imidazopyrimidinyl, imidazotriazine, imidazopyrazinyl, imidazopyridazinyl, indenocarbazolyl, indolecarbazolyl, benzofuranocarbazolyl, benzothiophenocarbazolyl, benzothiorrolocarbazolyl, benzoindolecarbazolyl, benzocarbazolyl, benzonaphthofuranyl, benzonaphthothiophene, benzonaphthothiorryl, benzofuranodibenzofuranyl, benzofuranodibenzothiophene and benzothiophenodibenzothiophene.

[0686] The term “divalent non-aromatic condensed heteropolycyclic group” as used herein may be a divalent group having substantially the same structure as the above-mentioned monovalent non-aromatic condensed heteropolycyclic group.

[0687] As used herein, the term "C 6 -C 60 The "aryloxy" may be -O(A 102 )(where A 102 Can be C 6 -C 60 A group represented by an aryl group.

[0688] As used herein, the term "C 6 -C 60 The "arylthio" group may be -S(A 103 )(where A 103 Can be C 6 -C 60 A group represented by an aryl group.

[0689] As used herein, the term "C 7 -C 60 The "aralkyl" may be -(A 104 )(A 105 )(where A 104 Can be C 1-C 54 Alkylene, and A 105 Can be C 6 -C 59 A group represented by an aryl group.

[0690] As used herein, the term "C 2 -C 60 "Heteroaralkyl" may be -(A 106 )(A 107 )(where A 106 Can be C 1 -C 59 Alkylene, and A 107 Can be C 1 -C 59 heteroaryl).

[0691] In the specification, the group "R 10a " can be:

[0692] Deuterium (-D), -F, -Cl, -Br, -I, hydroxy, cyano or nitro;

[0693] Each unsubstituted or substituted C 1 -C 60 Alkyl, C 2 -C 60 Alkenyl, C 2 -C 60 Alkynyl or C 1 -C 60 Alkoxy: deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, C 3 -C 60 Carbocyclic group, C 1 -C 60 Heterocyclic group, C 6 -C 60 Aryloxy, C 6 -C 60 Arylthio, C 7 -C 60 Aralkyl, C 2 -C 60 Heteroaralkyl, -Si(Q 11 )(Q 12 )(Q 13 )、-N(Q 11 )(Q 12 )、-B(Q 11 )(Q 12 )、-C(=O)(Q 11 )、-S(=O) 2 (Q 11 )、-P(=O)(Q 11 )(Q 12) or any combination thereof;

[0694] Each unsubstituted or substituted C 3 -C 60 Carbocyclic group, C 1 -C 60 Heterocyclic group, C 6 -C 60 Aryloxy, C 6 -C 60 Arylthio, C 7 -C 60 Arylalkyl or C 2 -C 60 Heteroaralkyl: deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, C 1 -C 60 Alkyl, C 2 -C 60 Alkenyl, C 2 -C 60 Alkynyl, C 1 -C 60 Alkoxy, C 3 -C 60 Carbocyclic group, C 1 -C 60 Heterocyclic group, C 6 -C 60 Aryloxy, C 6 -C 60 Arylthio, C 7 -C 60 Aralkyl, C 2 -C 60 Heteroaralkyl, -Si(Q 21 )(Q 22 )(Q 23 )、-N(Q 21 )(Q 22 )、-B(Q 21 )(Q 22 )、-C(=O)(Q 21 )、-S(=O) 2 (Q 21 )、-P(=O)(Q 21 )(Q 22 ) or any combination thereof; or

[0695] -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 ).

[0696] In the manual, Q 1 To Q 3 , Q 11 To Q 13 , Q 21 To Q 23 and Q 31 To Q 33 can be independently: hydrogen; deuterium; -F; -Cl; -Br; -I; hydroxyl; cyano; nitro; C 1 -C 60 Alkyl; C 2 -C 60 Alkenyl; C 2 -C 60 Alkynyl; C 1 -C 60 alkoxy; or each unsubstituted or substituted with deuterium, -F, cyano, C 1 -C 60 Alkyl, C 1 -C 60 Alkoxy, phenyl, biphenyl or any combination thereof substituted C 3 -C 60 Carbocyclic group, C 1 -C 60 Heterocyclic group, C 7 -C 60 Arylalkyl or C 2 -C 60 Heteroaralkyl.

[0697] The term "heteroatom" as used herein may be any atom other than a carbon atom and a hydrogen atom. Examples of heteroatoms may include O, S, N, P, Si, B, Ge, Se, and any combination thereof.

[0698] The term “transition metal” as used herein may be hafnium (Hf), tantalum (Ta), tungsten (W), rhenium (Re), osmium (Os), iridium (Ir), platinum (Pt), gold (Au), or the like.

[0699] As used herein, the term "D" may refer to deuterium, the term "Ph" may refer to phenyl, the term "Me" may refer to methyl, the term "Et" may refer to ethyl, the terms "tert-Bu", " t "Bu" or "Bu t ” may refer to tert-butyl, and the term “OMe” may refer to methoxy.

[0700] As used herein, the term "biphenyl" may be a "phenyl group substituted with a phenyl group". For example, a "biphenyl group" may be a group having C 6 -C 60 A phenyl group substituted with an aryl group as a substituent.

[0701] The term "terphenyl" as used herein may be a "phenyl substituted by a biphenyl group". For example, the term "terphenyl" as used herein may be a phenyl group in which the substituent is replaced by C 6 -C 60 Aryl substituted C 6 -C 60 phenyl substituted with aryl; or wherein there are two substituents and each substituent is C 6 -C 60 Aryl substituted phenyl.

[0702] Unless otherwise defined, the symbols * and *' as used herein each refer to a binding site to an adjacent atom in the corresponding formula or moiety.

[0703] In the specification, the terms "x-axis", "y-axis", and "z-axis" are not limited to the three axes in an orthogonal coordinate system (e.g., a Cartesian coordinate system), and may be interpreted in a broader sense than the three axes in the aforementioned orthogonal coordinate system. For example, the x-axis, y-axis, and z-axis describe axes that are orthogonal to each other, or may describe axes in different directions that are not orthogonal to each other.

[0704] Hereinafter, a compound and a light-emitting device according to an embodiment will be described in more detail with reference to the following Examples and Comparative Examples.

[0705] Example 1

[0706] As an anode, a 15Ω / cm 2 A glass substrate of an ITO electrode (product of Corning Incorporated) was cut into a size of 50 mm×50 mm×0.5 mm, ultrasonicated in isopropyl alcohol and pure water for 5 minutes each, cleaned by irradiation of ultraviolet rays and exposure to ozone for 30 minutes, and mounted on a vacuum deposition apparatus.

[0707] HAT-CN was vacuum deposited on the anode to form a BCFN is vacuum deposited on the hole injection layer to form a hole injection layer having a thickness of SiCzCz is vacuum deposited on the first hole transport layer to form a first hole transport layer having a thickness of The second hole transport layer has a thickness of .

[0708] Compound A1, compound B2, compound C4 and compound D6 were co-deposited on the second hole transport layer in a weight ratio of 59:26:13.5:1.5 to form a When forming the emission layer, compound A1 and compound B2 are used as hosts.

[0709] mSiTrz is vacuum deposited on the emission layer to form a mSiTrz and Liq are co-deposited on the first electron transport layer at a weight ratio of 1:1 to form a LiF is vacuum deposited on the second electron transport layer to form a second electron transport layer having a thickness of The electron injection layer has a thickness of .

[0710] Al is vacuum deposited on the electron injection layer to form a A LiF / Al electrode (cathode) with a thickness of is formed, thereby completing the manufacture of the light-emitting device.

[0711]

[0712]

[0713] Example 2 to Example 48

[0714] A light-emitting device was manufactured in substantially the same manner as in Example 1, except that, in forming the emission layer, the compounds shown in Table 1 to Table 4 were used as hosts instead of Compound A1 and Compound B2, respectively.

[0715] Comparative Examples 1 to 4

[0716] A light-emitting device was manufactured in substantially the same manner as in Example 1, except that, in forming the emission layer, the compounds shown in Table 4 were used as hosts instead of Compound A1 and Compound B2, respectively.

[0717] Evaluation Example 1

[0718] In order to evaluate the characteristics of the light emitting devices manufactured according to the embodiment and the comparative example, the current at 10 mA / cm 2The driving voltage and maximum quantum efficiency at the current density of . The driving voltage of each light-emitting device was measured by using a source meter (Keithley Instrument, 2400 series), and the maximum quantum efficiency was measured by using an external quantum efficiency measurement device C9920-2-12 from Hamamatsu Photonics Inc. When evaluating the maximum quantum efficiency, the brightness / current density was measured by using a luminance meter calibrated for wavelength sensitivity, and the maximum quantum efficiency was converted by assuming that an angular brightness distribution (Lambertian) of an ideal diffuse reflector was introduced. The relative lifetime refers to the lifetime of the time (100%) taken for the brightness of Example 1 to reach 95% of the initial brightness. The evaluation results of the characteristics of the light-emitting devices are shown in Tables 1 to 4.

[0719] [Table 1]

[0720]

[0721] [Table 2]

[0722]

[0723]

[0724] [Table 3]

[0725]

[0726] [Table 4]

[0727]

[0728]

[0729]

[0730]

[0731] It can be confirmed from Tables 1 to 4 that the light-emitting devices according to Examples 1 to 48 including both the first compound represented by Formula 1 and the second compound represented by Formula 2 have improved maximum quantum efficiency and improved lifespan compared to the light-emitting devices according to Comparative Examples 1 to 4.

[0732] Evaluation Example 2

[0733] The deposition temperatures of Compound A1 and Compound B2 were measured under the same conditions, and the difference between the respective deposition temperatures was calculated. Compound A1 and Compound B2 were crushed by using a mortar to form a premix. The crucible was filled with the premix and placed in a vacuum chamber at The rate of forming a The deposited film was dissolved in dichloromethane, the organic solvent was evaporated, and the change in the ratio of the compound was confirmed by analysis by high performance liquid chromatography (HPLC).

[0734] Instead of the combination of Compound A1 and Compound B2, the combination shown in Table 5 was used. The above process was repeated, and the results thereof are shown in Table 5.

[0735] [Table 5]

[0736]

[0737] As can be confirmed from Table 5, deposited films 7 to 10 using comparative compounds (the difference in deposition temperature between them and the compound represented by Formula 2 is greater than 15°C and does not correspond to the compound represented by Formula 1) exhibit relatively large changes in proportion. However, it can be confirmed that deposited films 1 to 6 using compounds (the difference in deposition temperature between them and the compound represented by Formula 2 is equal to or less than 15°C and corresponds to the compound represented by Formula 1) exhibit small changes in proportion of 2% or less. Therefore, by using both the first compound and the second compound, a light-emitting device having uniform characteristics can be manufactured. Therefore, a light-emitting device can be easily manufactured.

[0738] Evaluation Example 3

[0739] A light emitting device was manufactured in substantially the same manner as in Example 1, except that, when forming the emission layer, the premix shown in Table 6 was used instead of using two compounds as the main body. In this regard, the premix, compound C4 and compound D6 were used in a weight ratio of 85:13.5:1.5. The first compound and the second compound constituting each premix were the same as the first compound and the second compound shown in Table 5.

[0740] The relative lifespan of the light emitting devices manufactured using the premix was measured. The relative lifespan refers to the lifespan relative to the time taken for the brightness of Example 1 to reach 95% of the initial brightness (100%). The average relative lifespan of each of the light emitting devices was calculated and shown in Table 6.

[0741] The lifetime of each light emitting device manufactured by initial deposition using the premix was measured, and the lifetime of each light emitting device manufactured by final deposition before the premix was exhausted was measured. The lifetime difference between the light emitting devices manufactured by initial deposition and the light emitting devices manufactured by final deposition is shown in Table 6.

[0742] [Table 6]

[0743]

[0744] As can be confirmed from Table 6, the light-emitting devices according to Examples 49 to 54 including both the first compound represented by Formula 1 and the second compound represented by Formula 2 have improved maximum quantum efficiency and improved lifespan compared to the light-emitting devices according to Comparative Examples 5 to 8.

[0745] Referring to Tables 1 to 4 and 6, and by comparison between Example 49 and Example 1, between Example 50 and Example 7, between Example 51 and Example 31, between Example 52 and Example 2, between Example 53 and Example 8, and between Example 54 and Example 32, in the examples using the same first compound and the same second compound, compared with the light-emitting devices manufactured by depositing the first compound and the second compound without premixing the first compound and the second compound (Examples 1, Example 2, Example 7, Example 8, Example 31, and Example 32), the light-emitting devices manufactured by premixing the first compound and the second compound and depositing the premix (Examples 49 to 54) have substantially the same or improved maximum quantum efficiency and lifetime. It can also be confirmed that the lifetime difference between the light-emitting devices manufactured by the initial deposition according to Examples 49 to 54 using premixing and the light-emitting devices manufactured by the final deposition is small, and therefore, even when the first compound and the second compound are premixed, a light-emitting device having substantially uniform characteristics can be manufactured.

[0746] Therefore, when the first compound represented by Formula 1 and the second compound represented by Formula 2 are used in combination, a light-emitting device that emits blue light and has high efficiency and long life can be easily manufactured at low cost in a short period of time and can be uniformly manufactured even in large-scale production.

[0747] According to an embodiment, even when the first compound represented by Formula 1 and the second compound represented by Formula 2 are used together as a composition in a single deposition source in a deposition process, a light-emitting device having substantially uniform characteristics can be manufactured. Therefore, the first compound and the second compound can be premixed, and thus, the cost and time required for manufacturing the light-emitting device can be reduced. Therefore, the light-emitting device including the first compound and the second compound can have an improved lifespan and maximum quantum efficiency.

[0748] Embodiments have been disclosed herein, and although terms are employed, they are used and interpreted in a general and descriptive sense only and not for purposes of limitation. In some cases, as will be apparent to one of ordinary skill in the art, features, characteristics, and / or elements described in conjunction with an embodiment may be used alone or in combination with features, characteristics, and / or elements described in conjunction with other embodiments, unless specifically indicated otherwise. Accordingly, one of ordinary skill in the art will understand that various changes in form and detail may be made without departing from the spirit and scope of the present disclosure as set forth in the claims.

Claims

1. A composition comprising: A first compound represented by Formula 1; and A second compound represented by Formula 2: Formula 1 Formula 2 In Formula 1 and Formula 2, m and n are each independently 0 or 1, at least one of m and n is 1, L1 to L4 are each independently a single bond or *-CH2-*', c1 to c4 are each independently 0 or 1, X1 is N or C(R 1a ), X2 is N or C (R 2a ), X3 is N or C (R 3a ), X4 is N or C (R 4a ), Y1 is N or C (R 11 ), Y2 is N or C (R 12 ), Y3 is N or C(R 13 ), Y4 is N or C (R 14 ), Y5 is N or C (R 15 ), Y6 is N or C (R 16 ), Y7 is N or C (R 17 ), Y8 is N or C(R 18 ), X 21 N or C (R 21 ), X 22 N or C (R 22 ), X 23 N or C (R 23 ), X 21 To X 23 At least two of them are each N, p is an integer selected from 0 to 3, Z is C, Si or Ge, R1, R2, R 1a , R 1b , R 2a , R 2b , R 2c , R 3a , R 3b , R 3c , R 4a , R 4b , R 11 To R 18 , R 21 To R 23 , R 24a , R 24b , R 25a , R 25b , R 26a , R 26b and R 27 To R 30 Each is independently hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, unsubstituted or replaced by at least one R 10a Substituted C1-C 60 Alkyl, unsubstituted or substituted with at least one R 10a Substituted C2-C 60 Alkenyl, unsubstituted or substituted with at least one R 10a Substituted C2-C 60 Alkynyl, unsubstituted or substituted with at least one R 10a Substituted C1-C 60 Alkoxy, unsubstituted or substituted with at least one R 10a Substituted C3-C 60 Carbocyclic group, unsubstituted or substituted 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, unsubstituted or substituted with at least one R 10a Substituted C6-C 60 Arylthio, unsubstituted or substituted with at least one R 10a Substituted C7-C 60 Arylalkyl, unsubstituted or substituted with at least one R 10a Substituted C2-C 60 heteroarylalkyl, -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), R 10a for: deuterium, -F, -Cl, -Br, -I, hydroxy, cyano or nitro; Each unsubstituted or substituted C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl or C1-C 60 Alkoxy: deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, C3-C 60 Carbocyclic group, C1-C 60 Heterocyclic group, C6-C 60 Aryloxy, C6-C 60 Arylthio, C7-C 60 Aralkyl, C2-C 60 Heteroaralkyl, -Si(Q 11 )(Q 12 )(Q 13 )、-N(Q 11 )(Q 12 )、-B(Q 11 )(Q 12 )、-C(=O)(Q 11 )、-S(=O)2(Q 11 )、-P(=O)(Q 11 )(Q 12 ) or any combination thereof; Each unsubstituted or substituted C3-C 60 Carbocyclic group, C1-C 60 Heterocyclic group, C6-C 60 Aryloxy, C6-C 60 Arylthio, C7-C 60 Arylalkyl or C2-C 60 Heteroaralkyl: deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl, C1-C 60 Alkoxy, C3-C 60 Carbocyclic group, C1-C 60 Heterocyclic group, C6-C 60 Aryloxy, C6-C 60 Arylthio, C7-C 60 Aralkyl, C2-C 60 Heteroaralkyl, -Si(Q 21 )(Q 22 )(Q 23 )、-N(Q 21 )(Q 22 )、-B(Q 21 )(Q 22 )、-C(=O)(Q 21 )、-S(=O)2(Q 21 )、-P(=O)(Q 21 )(Q 22 ) or any combination thereof; or -Si(Q 31 )(Q 32 )(Q 33 )、-N(Q 31 )(Q 32 )、-B(Q 31 )(Q 32 )、-C(=O)(Q 31 )、-S(=O)2(Q 31 ) or -P(=O)(Q 31 )(Q 32 ), Q1 to Q3, Q 11 To Q 13 , Q 21 To Q 23 and Q 31 To Q 33 Each independently is: Hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl or C1-C 60 Alkoxy; or Each unsubstituted or deuterated, -F, cyano, C1-C 60 Alkyl, C1-C 60 C3-C substituted by alkoxy, phenyl, biphenyl or any combination thereof 60 Carbocyclic group, C1-C 60 Heterocyclic group, C7-C 60 Arylalkyl or C2-C 60 Heteroaralkyl, d2 is an integer selected from 0 to 2, d3 is an integer selected from 0 to 3, d4 is an integer selected from 0 to 4, and * and *' each indicate a binding site with an adjacent atom. 2 . The composition according to claim 1 , wherein a difference in deposition temperature between the first compound and the second compound is equal to or less than 15° C. 3 .

3. The composition according to claim 1, wherein in Formula 1, R1, R2, R 1a , R 1b , R 2a , R 2b , R 2c , R 3a , R 3b , R 3c , R 4a , R 4b and R 11 To R 18 Each independently does not: unsubstituted or substituted with at least one R 10a substituted carbazolyl; or -N(Q1)(Q2).

4. The composition according to claim 1, wherein in Formula 1, R1, R2, R 1a , R 1b , R 2a , R 2b , R 2c , R 3a , R 3b , R 3c , R 4a , R 4b and R 11 To R 18 Each is independently hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, unsubstituted or replaced by at least one R 10a Substituted C1-C 60 Alkyl, unsubstituted or substituted with at least one R 10a Substituted C2-C 60 Alkenyl, unsubstituted or substituted with at least one R 10a Substituted C2-C 60 Alkynyl, unsubstituted or substituted with at least one R 10a Substituted C1-C 60 Alkoxy, unsubstituted or substituted with at least one R 10a Substituted C3-C 60 carbocyclic group, -C(Q1)(Q2)(Q3), -Si(Q1)(Q2)(Q3), -B(Q1)(Q2), -C(═O)(Q1), -S(═O)2(Q1), or -P(═O)(Q1)(Q2).

5. The composition according to claim 1, wherein the first compound is represented by one of Formula 1-1 to Formula 1-10: Formula 1-1 Formula 1-2 Formula 1-3 Formula 1-4 Formula 1-5 Formula 1-6 Formula 1-7 Formula 1-8 Formula 1-9 Formula 1-10 In Formula 1-1 to Formula 1-10, Y1 to Y8, X1 to X4, L1 to L4, R 1b , R 2b , R 2c , R 3b , R 3c , R 4b , c1 to c4, d2 to d4, R1, R2, n and m are the same as described in Formula 1.

6. The composition according to claim 1, wherein in Formula 2, p is 0, and R 26a and R 26b One of them is unsubstituted or replaced by at least one R 10a Substituted C3-C 60 The carbocyclic group is either unsubstituted or substituted with at least one R 10a Substituted C1-C 60 Heterocyclic group.

7. The composition according to claim 1, wherein in Formula 2, p is 0, R 26a is unsubstituted or substituted with at least one R 10a Substituted C3-C 60 The carbocyclic group is either unsubstituted or substituted with at least one R 10a Substituted C1-C 60 a heterocyclic group, and R 26b is hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxy, cyano, nitro, unsubstituted or replaced by at least one R 10a Substituted C1-C 60 Alkyl, unsubstituted or substituted with at least one R 10a Substituted C2-C 60 Alkenyl, unsubstituted or substituted with at least one R 10a Substituted C2-C 60 Alkynyl is either unsubstituted or substituted with at least one R 10a Substituted C1-C 60 Alkoxy.

8. The composition according to claim 1, wherein in Formula 2, p is an integer selected from 1 to 3, and R 26a , R 26b and R 27 Each is independently hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, unsubstituted or replaced by at least one R 10a Substituted C1-C 60 Alkyl, unsubstituted or substituted with at least one R 10a Substituted C2-C 60 Alkenyl, unsubstituted or substituted with at least one R 10a Substituted C2-C 60 Alkynyl is either unsubstituted or substituted with at least one R 10a Substituted C1-C 60 Alkoxy.

9. The composition according to claim 1, wherein the second compound is represented by one of Formula 2-1 to Formula 2-3: Formula 2-1 Formula 2-2 Formula 2-3 In Formula 2-1 to Formula 2-3, X 21 To X 23 , R 24a , R 24b , R 25a , R 25b , R 26a , R 26b , R 27 To R 30 , d2, d3 and d4 are the same as described in Formula 2, Z1 and Z2 are each independently the same as described with reference to Z in Formula 2, R 28a and R 28b Each independently corresponds to R in formula 2 28 Same as described, R 29a and R 29b Each independently corresponds to R in formula 2 29 Same as described, and R 30a and R 30b Each independently corresponds to R in formula 2 30 Same as described.

10. The composition according to claim 1, wherein in Formula 2, R 28 To R 30 are each independently unsubstituted or substituted with at least one R 10a Substituted C3-C 60 The carbocyclic group is either unsubstituted or substituted with at least one R 10a Substituted C1-C 60 Heterocyclic group.

11. The composition according to claim 1, wherein in Formula 2, X 21 To X 23 Each is N.

12. The composition of claim 1, wherein the first compound is one of Compound A1 to Compound A99: In Compound A1 to Compound A99, D represents a deuterium atom.

13. The composition of claim 1, wherein the second compound is one of Compound B1 to Compound B15: In compounds B1 to B15, D represents a deuterium atom.

14. A light emitting device, comprising: a first electrode; a second electrode facing the first electrode; as well as an interlayer between the first electrode and the second electrode, wherein the interlayer comprises: Emission layer; a first compound represented by Formula 1; and A second compound represented by Formula 2: Formula 1 Formula 2 In Formula 1 and Formula 2, m and n are each independently 0 or 1, at least one of m and n is 1, L1 to L4 are each independently a single bond or *-CH2-*', c1 to c4 are each independently 0 or 1, X1 is N or C(R 1a ), X2 is N or C (R 2a ), X3 is N or C (R 3a ), X4 is N or C (R 4a ), Y1 is N or C (R 11 ), Y2 is N or C (R 12 ), Y3 is N or C(R 13 ), Y4 is N or C (R 14 ), Y5 is N or C (R 15 ), Y6 is N or C (R 16 ), Y7 is N or C (R 17 ), Y8 is N or C (R 18 ), X 21 N or C (R 21 ), X 22 N or C (R 22 ), X 23 N or C (R 23 ), X 21 To X 23 At least two of them are each N, p is an integer selected from 0 to 3, Z is C, Si or Ge, R1, R2, R 1a , R 1b , R 2a , R 2b , R 2c , R 3a , R 3b , R 3c , R 4a , R 4b , R 11 To R 18 , R 21 To R 23 , R 24a , R 24b , R 25a , R 25b , R 26a , R 26b and R 27 To R 30 Each is independently hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, unsubstituted or replaced by at least one R 10a Substituted C1-C 60 Alkyl, unsubstituted or substituted with at least one R 10a Substituted C2-C 60 Alkenyl, unsubstituted or substituted with at least one R 10a Substituted C2-C 60 Alkynyl, unsubstituted or substituted with at least one R 10a Substituted C1-C 60 Alkoxy, unsubstituted or substituted with at least one R 10a Substituted C3-C 60 Carbocyclic group, unsubstituted or substituted 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, unsubstituted or substituted with at least one R 10a Substituted C6-C 60 Arylthio, unsubstituted or substituted with at least one R 10a Substituted C7-C 60 Arylalkyl, unsubstituted or substituted with at least one R 10a Substituted C2-C 60 heteroarylalkyl, -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), R 10a for: deuterium, -F, -Cl, -Br, -I, hydroxy, cyano or nitro; Each unsubstituted or substituted C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl or C1-C 60 Alkoxy: deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, C3-C 60 Carbocyclic group, C1-C 60 Heterocyclic group, C6-C 60 Aryloxy, C6-C 60 Arylthio, C7-C 60 Aralkyl, C2-C 60 Heteroaralkyl, -Si(Q 11 )(Q 12 )(Q 13 )、-N(Q 11 )(Q 12 )、-B(Q 11 )(Q 12 )、-C(=O)(Q 11 )、-S(=O)2(Q 11 )、-P(=O)(Q 11 )(Q 12 ) or any combination thereof; Each unsubstituted or substituted C3-C 60 Carbocyclic group, C1-C 60 Heterocyclic group, C6-C 60 Aryloxy, C6-C 60 Arylthio, C7-C 60 Arylalkyl or C2-C 60 Heteroaralkyl: deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl, C1-C 60 Alkoxy, C3-C 60 Carbocyclic group, C1-C 60 Heterocyclic group, C6-C 60 Aryloxy, C6-C 60 Arylthio, C7-C 60 Aralkyl, C2-C 60 Heteroaralkyl, -Si(Q 21 )(Q 22 )(Q 23 )、-N(Q 21 )(Q 22 )、-B(Q 21 )(Q 22 )、-C(=O)(Q 21 )、-S(=O)2(Q 21 )、-P(=O)(Q 21 )(Q 22 ) or any combination thereof; or -Si(Q 31 )(Q 32 )(Q 33 )、-N(Q 31 )(Q 32 )、-B(Q 31 )(Q 32 )、-C(=O)(Q 31 )、-S(=O)2(Q 31 ) or -P(=O)(Q 31 )(Q 32 ), Q1 to Q3, Q 11 To Q 13 , Q 21 To Q 23 and Q 31 To Q 33 Each independently is: Hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl or C1-C 60 Alkoxy; or Each unsubstituted or deuterated, -F, cyano, C1-C 60 Alkyl, C1-C 60 C3-C substituted by alkoxy, phenyl, biphenyl or any combination thereof 60 Carbocyclic group, C1-C 60 Heterocyclic group, C7-C 60 Arylalkyl or C2-C 60 Heteroaralkyl, d2 is an integer selected from 0 to 2, d3 is an integer selected from 0 to 3, d4 is an integer selected from 0 to 4, and * and *' each indicate a binding site with an adjacent atom.

15. The light emitting device according to claim 14, wherein the interlayer further comprises a third compound represented by Formula 3: Formula 3 In formula 3, R 31 To R 35 Each is independently hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, unsubstituted or replaced by at least one R 10a Substituted C1-C 60 Alkyl, unsubstituted or substituted with at least one R 10a Substituted C2-C 60 Alkenyl, unsubstituted or substituted with at least one R 10a Substituted C2-C 60 Alkynyl, unsubstituted or substituted with at least one R 10a Substituted C1-C 60 Alkoxy, unsubstituted or substituted with at least one R 10a Substituted C3-C 60 Carbocyclic group, unsubstituted or substituted 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, unsubstituted or substituted with at least one R 10a Substituted C6-C 60 Arylthio, unsubstituted or substituted with at least one R 10a Substituted C7-C 60 Arylalkyl, unsubstituted or substituted with at least one R 10a Substituted C2-C 60 heteroarylalkyl, -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), R 10a for: deuterium, -F, -Cl, -Br, -I, hydroxy, cyano or nitro; Each unsubstituted or substituted C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl or C1-C 60 Alkoxy: deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, C3-C 60 Carbocyclic group, C1-C 60 Heterocyclic group, C6-C 60 Aryloxy, C6-C 60 Arylthio, C7-C 60 Aralkyl, C2-C 60 Heteroaralkyl, -Si(Q 11 )(Q 12 )(Q 13 )、-N(Q 11 )(Q 12 )、-B(Q 11 )(Q 12 )、-C(=O)(Q 11 )、-S(=O)2(Q 11 )、-P(=O)(Q 11 )(Q 12 ) or any combination thereof; Each unsubstituted or substituted C3-C 60 Carbocyclic group, C1-C 60 Heterocyclic group, C6-C 60 Aryloxy, C6-C 60 Arylthio, C7-C 60 Arylalkyl or C2-C 60 Heteroaralkyl: deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl, C1-C 60 Alkoxy, C3-C 60 Carbocyclic group, C1-C 60 Heterocyclic group, C6-C 60 Aryloxy, C6-C 60 Arylthio, C7-C 60 Aralkyl, C2-C 60 Heteroaralkyl, -Si(Q 21 )(Q 22 )(Q 23 )、-N(Q 21 )(Q 22 )、-B(Q 21 )(Q 22 )、-C(=O)(Q 21 )、-S(=O)2(Q 21 )、-P(=O)(Q 21 )(Q 22 ) or any combination thereof; or -Si(Q 31 )(Q 32 )(Q 33 )、-N(Q 31 )(Q 32 )、-B(Q 31 )(Q 32 )、-C(=O)(Q 31 )、-S(=O)2(Q 31 ) or -P(=O)(Q 31 )(Q 32 ), Q1 to Q3, Q 11 To Q 13 , Q 21 To Q 23 and Q 31 To Q 33 Each independently is: Hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl or C1-C 60 Alkoxy; or Each unsubstituted or deuterated, -F, cyano, C1-C 60 Alkyl, C1-C 60 C3-C substituted by alkoxy, phenyl, biphenyl or any combination thereof 60 Carbocyclic group, C1-C 60 Heterocyclic group, C7-C 60 Arylalkyl or C2-C 60 Heteroaralkyl, d3 is an integer selected from 0 to 3, and d4 is an integer selected from 0-4. The light emitting device of claim 15 , wherein the third compound comprises at least one deuterium.

17. The light emitting device according to claim 14, wherein the interlayer further comprises a fourth compound represented by Formula 4: Formula 4 In formula 4, R 41 To R 46 Each is independently hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, unsubstituted or replaced by at least one R 10a Substituted C1-C 60 Alkyl, unsubstituted or substituted with at least one R 10a Substituted C2-C 60 Alkenyl, unsubstituted or substituted with at least one R 10a Substituted C2-C 60 Alkynyl, unsubstituted or substituted with at least one R 10a Substituted C1-C 60 Alkoxy, unsubstituted or substituted with at least one R 10a Substituted C3-C 60 Carbocyclic group, unsubstituted or substituted 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, unsubstituted or substituted with at least one R 10a Substituted C6-C 60 Arylthio, unsubstituted or substituted with at least one R 10a Substituted C7-C 60 Arylalkyl, unsubstituted or substituted with at least one R 10a Substituted C2-C 60 heteroarylalkyl, -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), R 10a for: deuterium, -F, -Cl, -Br, -I, hydroxy, cyano or nitro; Each unsubstituted or substituted C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl or C1-C 60 Alkoxy: deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, C3-C 60 Carbocyclic group, C1-C 60 Heterocyclic group, C6-C 60 Aryloxy, C6-C 60 Arylthio, C7-C 60 Aralkyl, C2-C 60 Heteroaralkyl, -Si(Q 11 )(Q 12 )(Q 13 )、-N(Q 11 )(Q 12 )、-B(Q 11 )(Q 12 )、-C(=O)(Q 11 )、-S(=O)2(Q 11 )、-P(=O)(Q 11 )(Q 12 ) or any combination thereof; Each unsubstituted or substituted C3-C 60 Carbocyclic group, C1-C 60 Heterocyclic group, C6-C 60 Aryloxy, C6-C 60 Arylthio, C7-C 60 Arylalkyl or C2-C 60 Heteroaralkyl: deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl, C1-C 60 Alkoxy, C3-C 60 Carbocyclic group, C1-C 60 Heterocyclic group, C6-C 60 Aryloxy, C6-C 60 Arylthio, C7-C 60 Aralkyl, C2-C 60 Heteroaralkyl, -Si(Q 21 )(Q 22 )(Q 23 )、-N(Q 21 )(Q 22 )、-B(Q 21 )(Q 22 )、-C(=O)(Q 21 )、-S(=O)2(Q 21 )、-P(=O)(Q 21 )(Q 22 ) or any combination thereof; or -Si(Q 31 )(Q 32 )(Q 33 )、-N(Q 31 )(Q 32 )、-B(Q 31 )(Q 32 )、-C(=O)(Q 31 )、-S(=O)2(Q 31 ) or -P(=O)(Q 31 )(Q 32 ), Q1 to Q3, Q 11 To Q 13 , Q 21 To Q 23 and Q 31 To Q 33 Each independently is: Hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, C1-C 60 Alkyl, C2-C 60 Alkenyl, C2-C 60 Alkynyl or C1-C 60 Alkoxy; or Each unsubstituted or deuterated, -F, cyano, C1-C 60 Alkyl, C1-C 60 C3-C substituted by alkoxy, phenyl, biphenyl or any combination thereof 60 Carbocyclic group, C1-C 60 Heterocyclic group, C7-C 60 Arylalkyl or C2-C 60 Heteroaralkyl, d2 is an integer selected from 0 to 2, d3 is an integer selected from 0 to 3, d4 is an integer selected from 0 to 4, and d5 is an integer selected from 0-5. The light emitting device of claim 17 , wherein the fourth compound comprises at least one deuterium.

19. An electronic device comprising: The light emitting device according to any one of claims 14 to 18; and A thin film transistor is electrically connected to the light emitting device.

20. An electronic device comprising the electronic device according to claim 19, wherein The electronic device is 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 mobile phone, a tablet 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 tiled together, a theater screen, a stadium screen, a light therapy device or a sign.

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