Organic compound and organic light emitting diode including same

Abstract

The present invention relates to an organic compound represented by chemical formula 1 and an organic light-emitting diode comprising the same, the organic compound represented by chemical formula 1 according to the present invention being included in a light-emitting layer, whereby driving voltage, efficiency, and lifespan characteristics of the organic light-emitting diode can be improved.

Description

Technical Field

[0001] The invention relates to an organic compound and an organic light emitting diode comprising the organic compound. Background Art

[0002] Compared with other flat panel display diodes such as existing liquid crystal displays (LCDs), plasma flat panel displays (PDPs) and field emission displays (FEDs), organic light emitting diodes (OLEDs) have a simpler structure and have many advantages in the preparation process. They have excellent high brightness and viewing angle characteristics, fast response speed and low driving voltage. Therefore, they are being actively developed for use as light sources for flat panel displays such as wall-mounted TVs or back lights of displays, lighting and billboards.

[0003] Organic light-emitting diodes are composed of an organic layer between two electrodes. They use the following principle: electrons and holes are injected into the light-emitting layer from the two electrodes, and the electrons and holes combine to generate excitons. When the generated excitons fall from the excited state to the ground state, light is generated.

[0004] The organic light emitting diode may include at least one light emitting layer. Generally, an organic light emitting diode having a plurality of light emitting layers includes a plurality of light emitting layers emitting light having different peak wavelengths, so that a specific color may be realized by a combination of light having different peak wavelengths.

[0005] This organic light emitting diode can be divided into a front light emitting diode and a back light emitting diode structure. The front light emitting diode uses a reflective second electrode (Cathode) to emit light generated from the light emitting layer to the semi-transparent first electrode (Anode) side. On the contrary, the back light emitting diode uses a reflective first electrode (Anode) to emit light generated from the light emitting layer and reflected to the first electrode to the transparent second electrode (Cathode) side as the driving thin film transistor direction.

[0006] Existing patent literature

[0007] Existing patent document 1: CN 117024455 A Summary of the invention

[0008] Technical issues

[0009] The object of the present invention is to provide a novel organic compound and an organic light emitting diode comprising the same.

[0010] In addition to the above-mentioned problems, embodiments of the present invention may also be used to solve other problems not specifically mentioned.

[0011] The purpose of the present invention is not limited to the purpose described above, and other purposes and advantages of the present invention that are not mentioned can be understood through the following description, and will be more clearly understood through the embodiments of the present invention. And, it is obvious that the purposes and advantages of the present invention can be achieved by the means shown in the scope of the invention and their combination.

[0012] Technical Solution

[0013] According to an aspect of the present invention, an organic compound represented by the following Chemical Formula 1 may be provided.

[0014] Chemical formula 1:

[0015]

[0016] In the chemical formula 1, the structure of the A unit can be selected from the following structures (A-1) and (A-2), * represents a binding site,

[0017] (A-1) (A-2) (X1 is oxygen (O) or sulfur (S)), o, q, r are integers selected from 0 to 3, p, s, t are integers selected from 0 to 4,

[0018] L is a single bond and a substituted or unsubstituted arylene group having 6 to 30 carbon atoms,

[0019] Ar1 is selected from substituted or unsubstituted aryl groups having 6 to 30 carbon atoms, substituted or unsubstituted heteroaryl groups having 5 to 60 carbon atoms, substituted or unsubstituted arylamino groups having 6 to 30 carbon atoms, and compounds of formula a1( Wherein, Dn represents the number of deuterium substituted in the structure, and n is an integer selected from 0 to 3,

[0020] R1 to R6 are the same as or different from each other, and are each independently selected from the group consisting of hydrogen, deuterium, cyano, substituted or unsubstituted alkyl having 1 to 30 carbon atoms, substituted or unsubstituted aryl having 6 to 30 carbon atoms, substituted or unsubstituted heteroaryl having 5 to 60 carbon atoms, and substituted or unsubstituted arylamino having 6 to 30 carbon atoms, and can be combined with adjacent groups to form a group of formula b( Wherein, * represents the structure of the binding site,

[0021] When L, Ar1, R1 to R6 are substituted, each substituent can be independently substituted by one or more substituents selected from deuterium, cyano, nitro, halogen, hydroxyl, alkyl having 1 to 30 carbon atoms, alkenyl having 2 to 30 carbon atoms, alkynyl having 2 to 24 carbon atoms, heteroalkyl having 2 to 30 carbon atoms, aralkyl having 6 to 30 carbon atoms, cycloalkyl having 3 to 20 carbon atoms, heterocycloalkyl having 3 to 20 carbon atoms, aryl having 6 to 30 carbon atoms, heteroaryl having 2 to 30 carbon atoms, heteroarylalkyl having 3 to 30 carbon atoms, alkoxy having 1 to 30 carbon atoms, alkylsilyl having 1 to 30 carbon atoms, arylsilyl having 6 to 30 carbon atoms and aryloxy having 6 to 30 carbon atoms. When substituted by multiple substituents, they are the same or different from each other.

[0022] According to another aspect of the present invention, an organic light emitting diode can be provided, comprising: a first electrode; a second electrode arranged opposite to the first electrode; and one or more organic layers arranged between the first electrode and the second electrode, at least one of the organic layers containing the organic compound represented by Chemical Formula 1.

[0023] Effects of the Invention

[0024] The organic light emitting diode including the organic compound represented by Chemical Formula 1 of the present invention can improve driving voltage, efficiency and lifespan characteristics, and in particular, can exhibit excellent color expression and color purity in a blue or green light emitting layer.

[0025] The effects of the present specification are not limited to the above-mentioned effects, and other effects not mentioned may be clearly understood by ordinary technicians through the following description.

[0026] The above-described effects and other effects are described in detail below. DETAILED DESCRIPTION

[0027] The aforementioned objects, features and advantages are described in detail below with reference to the following embodiments so that those skilled in the art can easily implement the technical ideas of the present invention.

[0028] In describing the present specification, if it is determined that a detailed description of known technology related to the present specification may unnecessarily obscure the gist of the present specification, the detailed description will be omitted.

[0029] In this specification, when referring to structural elements such as "including", "containing", "having", "forming", "configured", or "having", other parts may be added unless "only to" is used. When a structural element is expressed in the singular, the plural is included unless otherwise specifically stated.

[0030] In interpreting the structural elements in the present specification, they are interpreted as including the error range even if there is no individual explicit description.

[0031] In this specification, the arrangement of an arbitrary structure "on the top (or bottom)" of a structural element or "above (or below)" a structural element means that the arbitrary structure is not only arranged in contact with the top (or bottom) of the above-mentioned structural element, but also other structures may exist between the above-mentioned structural element and the arbitrary structure arranged on (or below) the above-mentioned structural element.

[0032] The term "halogen" used in the present specification includes fluorine, chlorine, bromine and iodine.

[0033] The term "alkyl" used in this specification refers to both straight-chain alkyl and branched-chain alkyl. Unless otherwise specified, the alkyl contains 1 to 30 carbon atoms and may include, but is not limited to, methyl, ethyl, propyl, isopropyl, butyl, sec-butyl, isobutyl, tert-butyl, pentyl, isopentyl, hexyl, etc. Further, the alkyl may be optionally substituted.

[0034] The term "cycloalkyl" used in this specification refers to a cyclic alkyl group. Unless otherwise specified, the cycloalkyl group contains 3 to 20 carbon atoms and may include, but is not limited to, cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, norbornyl, adamantyl, etc. Further, the cycloalkyl group may be optionally substituted.

[0035] The term "alkenyl" used in this specification refers to both straight-chain alkenyl and branched alkenyl groups having one or more carbon-carbon double bonds. Unless otherwise specified, alkenyl contains 2 to 30 carbon atoms and may include, but is not limited to, vinyl, allyl, isopropenyl, 2-butenyl, etc. Further, alkenyl may be optionally substituted.

[0036] The term "cycloalkenyl" used in the present specification refers to a cyclic alkenyl group. Unless otherwise specified, the cycloalkenyl group contains 3 to 20 carbon atoms, and further, the cycloalkenyl group may be optionally substituted.

[0037] The term "alkynyl" used in this specification refers to both straight-chain alkynyl and branched alkynyl having more than one carbon-carbon triple bond. Unless otherwise specified, the alkynyl contains 2 to 30 carbon atoms, which may include but are not limited to ethynyl, 2-propynyl (2-propynyl) and the like. Further, the alkynyl may be optionally substituted.

[0038] The term "cycloalkynyl" used in the present specification refers to a cyclic alkynyl group. Unless otherwise specified, the cycloalkynyl group contains 3 to 20 carbon atoms, and further, the cycloalkynyl group may be optionally substituted.

[0039] The term "aralkyl" or "arylalkyl" used in the present specification is used interchangeably, and refers to an alkyl group having an aromatic group as a substituent. Further, the aralkyl group (arylalkyl group) may be optionally substituted.

[0040] The terms "aryl" or "aromatic group" used in this specification have the same meaning, and aryl includes monocyclic groups and polycyclic groups. Polycyclic may include "condensed rings", which are two or more rings, and may also include two or more rings that are simply attached or fused to each other. Unless otherwise specified, aryl contains 6 to 30 carbon atoms and may include, but is not limited to, phenyl, naphthyl, anthracenyl, phenanthrenyl, fluorenyl, dimethylfluorenyl, diphenylfluorenyl, spirofluorenyl, etc. Further, aryl may be optionally substituted.

[0041] The terms "heteroaryl" or "heteroaromatic group" used in this specification have the same meaning, and heteroaryl includes both monocyclic groups and polycyclic groups. Polycyclic rings may include "fused rings", which are two or more rings, in which two adjacent rings have two carbon or hetero atoms in common. In addition, it may also include a form in which two or more rings are simply attached or fused to each other. Unless otherwise specified, a heteroaryl group contains 5 to 60 carbon atoms, and when one or two carbon atoms are present, additional hetero elements may be included to form a ring. Furthermore, the heteroaryl group may contain 1 to 30 carbon atoms, in which case one or more carbon atoms in the ring are replaced by heteroatoms such as oxygen (O), nitrogen (N), sulfur (S) or selenium (Se), and may include, but are not limited to, 6-membered monocyclic rings such as pyridyl, pyrazinyl, pyrimidinyl, pyridazinyl, triazinyl; polycyclic rings such as phenoxathiyl, indolizinyl, indolyl, purinyl, quinolyl, isoquinolyl, benzooxyoxazolyl, benzothiazolyl, dibenzooxyoxazolyl, dibenzothiazolyl, benzimidazolyl, benzofuranyl, dibenzofuranyl, benzothienyl, dibenzothienyl, phenylcarbazolyl, 9-phenylcarbazolyl, carbazolyl; and 2-furanyl, N-imidazolyl, 2-isoxazolyl, 2-pyridinyl, 2-pyrimidinyl, etc. Further, the heteroaryl group may be optionally substituted.

[0042] The term "heterocyclic group" used in this specification means that one or more of the carbon atoms constituting an aryl group, a cycloalkyl group, a cycloalkenyl group, a cycloalkynyl group, an aralkyl group, an arylamino group, etc. are substituted by a heteroatom (hetero-atom) such as oxygen (O), nitrogen (N), sulfur (S), etc., and with reference to the above definition, includes a heteroaryl group, a heterocycloalkyl group, a heterocycloalkenyl group, a heterocycloalkynyl group, a heteroarylalkyl group, a heteroarylamino group, etc., and further, the heterocyclic group may be optionally substituted.

[0043] Unless otherwise specified, the term "carbon ring" used in the present specification may include "cycloalkyl", "cycloalkenyl", "cycloalkynyl" as alicyclic ring groups, and "aryl (aromatic group)" as aromatic ring groups.

[0044] The terms "heteroalkyl", "heteroalkenyl", "heteroalkynyl" and "heteroarylalkyl" as used in the present specification mean that one or more of the carbon atoms constituting the group is substituted by a heteroatom such as oxygen (O), nitrogen (N) or sulfur (S). Furthermore, the heteroalkyl, heteroalkenyl, heteroalkynyl and heteroarylalkyl may be optionally substituted.

[0045] The terms "alkylamino", "arylalkylamino", "arylamino" and "heteroarylamino" used in this specification refer to amino groups (or amine groups) substituted by alkyl groups, arylalkyl groups, aryl groups and heteroaryl groups, and include primary amino groups, secondary amino groups and tertiary amino groups (or amine groups). Furthermore, alkylamino groups, arylalkylamino groups, arylamino groups and heteroarylamino groups may be optionally substituted.

[0046] The terms "alkylsilyl", "arylsilyl", "alkoxy", "aryloxy", "alkylthio" and "arylthio" used in the present specification mean that the silyl, oxy and thio groups are substituted by the alkyl and aryl groups, respectively. Furthermore, the alkylsilyl, arylsilyl, alkoxy, aryloxy, alkylthio and arylthio groups may be optionally substituted.

[0047] The terms "arylene", "arylalkylene", "heteroarylene", and "heteroarylalkylene" used in this specification refer to each of the aryl, arylalkyl, heteroaryl, and heteroarylalkyl groups being a divalent substituent further comprising one substituent. Furthermore, the arylene, arylalkylene, heteroarylene, and heteroarylalkylene groups may be optionally substituted.

[0048] The term "substituted" used in this specification means that a hydrogen (H) atom bonded to a carbon atom of the compound of the present invention is replaced by a substituent other than hydrogen, and when there are multiple substituents, each substituent may be the same or different from each other.

[0049] The substituents may be each independently selected from the group consisting of deuterium, cyano, nitro, halogen, hydroxyl, alkyl having 1 to 30 carbon atoms, alkenyl having 2 to 30 carbon atoms, alkynyl having 2 to 24 carbon atoms, heteroalkyl having 2 to 30 carbon atoms, arylalkyl having 6 to 30 carbon atoms, cycloalkyl having 3 to 20 carbon atoms, heterocycloalkyl having 3 to 20 carbon atoms, aryl having 6 to 30 carbon atoms, heteroaryl having 2 to 30 carbon atoms, heteroarylalkyl having 3 to 30 carbon atoms, alkoxy having 1 to 30 carbon atoms, alkylsilyl having 1 to 30 carbon atoms, arylsilyl having 6 to 30 carbon atoms and aryloxy having 6 to 30 carbon atoms.

[0050] In the present specification, unless otherwise specified, the position of substitution is not particularly limited as long as the hydrogen atom is substituted, that is, the position of the substituent is substitutable. When there are two or more substituents, the substituents may be the same or different from each other.

[0051] Unless otherwise stated, each object and substituent defined in this specification may be the same or different.

[0052] In this specification, unless otherwise specified, all unit standards are based on weight (wt). For example, when "%" is recorded, it is interpreted as weight percentage (wt%).

[0053] Hereinafter, the organic compound of the present invention and the organic light emitting diode including the same will be described in detail.

[0054] The organic compound of the present invention can be represented by Chemical Formula 1 below.

[0055] Chemical formula 1:

[0056]

[0057] In the chemical formula 1, the structure of the A unit can be selected from the following structures (A-1) and (A-2), * represents a binding site,

[0058] (A-1) (A-2) (X1 is oxygen (O) or sulfur (S)), o, q, r are integers selected from 0 to 3, p, s, t are integers selected from 0 to 4,

[0059] L may be a single bond and a substituted or unsubstituted arylene group having 6 to 30 carbon atoms.

[0060] Ar1 can be selected from substituted or unsubstituted aryl groups having 6 to 30 carbon atoms, substituted or unsubstituted arylalkyl groups having 7 to 30 carbon atoms, substituted or unsubstituted heteroaryl groups having 5 to 60 carbon atoms, substituted or unsubstituted heteroarylalkyl groups having 6 to 60 carbon atoms, substituted or unsubstituted arylamino groups having 6 to 30 carbon atoms, substituted or unsubstituted arylalkylamino groups having 6 to 30 carbon atoms, substituted or unsubstituted heteroarylamino groups having 5 to 60 carbon atoms, substituted or unsubstituted arylsilyl groups having 6 to 30 carbon atoms, substituted or unsubstituted aryloxy groups having 6 to 30 carbon atoms and groups of formula a1( Wherein, Dn represents the number of deuterium substituted in the structure, and in this case, n representing the number of deuterium is an integer selected from 0 to 3,

[0061] R1 to R6 are the same as or different from each other, and may be each independently selected from hydrogen, deuterium, cyano, trifluoromethyl, nitro, halogen, hydroxyl, trimethylsilyl (TMS), substituted or unsubstituted alkyl having 1 to 30 carbon atoms, substituted or unsubstituted cycloalkyl having 3 to 20 carbon atoms, substituted or unsubstituted alkenyl having 2 to 30 carbon atoms, substituted or unsubstituted cycloalkenyl having 3 to 20 carbon atoms, substituted or unsubstituted alkynyl having 2 to 30 carbon atoms, substituted or unsubstituted cycloalkynyl having 3 to 20 carbon atoms, substituted or unsubstituted aryl having 6 to 30 carbon atoms, substituted or unsubstituted arylalkyl having 7 to 30 carbon atoms, substituted or unsubstituted heteroaryl having 5 to 60 carbon atoms, substituted or unsubstituted heteroarylalkyl having 6 to 60 carbon atoms, one of the group consisting of substituted or unsubstituted amino, substituted or unsubstituted alkylamino having 1 to 30 carbon atoms, substituted or unsubstituted arylalkylamino having 7 to 30 carbon atoms, substituted or unsubstituted arylamino having 6 to 30 carbon atoms, substituted or unsubstituted heteroarylamino having 5 to 60 carbon atoms, substituted or unsubstituted silyl, substituted or unsubstituted alkylsilyl having 1 to 30 carbon atoms, substituted or unsubstituted arylsilyl having 6 to 30 carbon atoms, substituted or unsubstituted alkoxy having 1 to 30 carbon atoms, substituted or unsubstituted aryloxy having 6 to 30 carbon atoms, substituted or unsubstituted alkylthio having 1 to 30 carbon atoms and substituted or unsubstituted arylthio having 6 to 30 carbon atoms, and may be combined with adjacent groups to form a group of formula b( Wherein, * represents the structure of the binding site,

[0062] When L, Ar1, R1 to R6 are substituted, each substituent can be independently selected from deuterium, cyano, nitro, halogen, hydroxyl, alkyl having 1 to 30 carbon atoms, alkenyl having 2 to 30 carbon atoms, alkynyl having 2 to 24 carbon atoms, heteroalkyl having 2 to 30 carbon atoms, arylalkyl having 6 to 30 carbon atoms, cycloalkyl having 3 to 20 carbon atoms, heterocycloalkyl having 3 to 20 carbon atoms, The alkyl group may be substituted with one or more substituents selected from the group consisting of an aryl group having 2 to 30 carbon atoms, a heteroaryl group having 2 to 30 carbon atoms, a heteroarylalkyl group having 3 to 30 carbon atoms, an alkoxy group having 1 to 30 carbon atoms, an alkylsilyl group having 1 to 30 carbon atoms, an arylsilyl group having 6 to 30 carbon atoms, and an aryloxy group having 6 to 30 carbon atoms. When substituted with multiple substituents, they may be the same or different and may combine with adjacent groups to form a substituted or unsubstituted ring.

[0063] According to one embodiment of the present invention, in the chemical formula 1, the structure of the A unit can be selected from the following structures (A-1) and (A-2), where * represents a binding site,

[0064] (A-1) (A-2) (X1 is oxygen (O) or sulfur (S)), o, q, r are integers selected from 0 to 3, p, s, t are integers selected from 0 to 4,

[0065] L is a single bond and a substituted or unsubstituted arylene group having 6 to 30 carbon atoms,

[0066] Ar1 is selected from substituted or unsubstituted aryl groups having 6 to 30 carbon atoms, substituted or unsubstituted heteroaryl groups having 5 to 60 carbon atoms, substituted or unsubstituted arylamino groups having 6 to 30 carbon atoms, and compounds of formula a1( Wherein, Dn represents the number of deuterium substituted in the structure, and in this case, n representing the number of deuterium is an integer selected from 0 to 3,

[0067] R1 to R6 are the same as or different from each other and are each independently selected from the group consisting of hydrogen, deuterium, cyano, substituted or unsubstituted alkyl having 1 to 30 carbon atoms, substituted or unsubstituted aryl having 6 to 30 carbon atoms, substituted or unsubstituted heteroaryl having 5 to 60 carbon atoms and substituted or unsubstituted arylamino having 6 to 30 carbon atoms, and can be combined with adjacent groups to form a group of formula b( Wherein, * represents the structure of the binding site,

[0068] When L, Ar1, R1 to R6 are substituted, each substituent may be independently substituted by one or more substituents selected from deuterium, cyano, nitro, halogen, hydroxyl, alkyl having 1 to 30 carbon atoms, alkenyl having 2 to 30 carbon atoms, alkynyl having 2 to 24 carbon atoms, heteroalkyl having 2 to 30 carbon atoms, aralkyl having 6 to 30 carbon atoms, cycloalkyl having 3 to 20 carbon atoms, heterocycloalkyl having 3 to 20 carbon atoms, aryl having 6 to 30 carbon atoms, heteroaryl having 2 to 30 carbon atoms, heteroarylalkyl having 3 to 30 carbon atoms, alkoxy having 1 to 30 carbon atoms, alkylsilyl having 1 to 30 carbon atoms, arylsilyl having 6 to 30 carbon atoms and aryloxy having 6 to 30 carbon atoms. When substituted by multiple substituents, they may be the same or different from each other.

[0069] The chemical formula 1 represents a boron-based dopant, and has a boron (B) core structure and an aromatic polycyclic structure with the boron as the center and connected by nitrogen (N) elements on the left and right. Its structural feature is that the nitrogen on the left side of the core is fused with a carbazole group, the nitrogen on the right side of the core forms a fused ring with boron and A, and Ar1 connected by a connecting group (L) is combined with the right nitrogen of the central skeleton containing the core structure. In this way, the deformation of the molecular structure is suppressed by the fusion of the carbazole group on the left side of the core and the fusion of the A element on the right side of the core, and since the resonance structure is extended in the molecule by connecting the multiple aromatic rings shown in the chemical formula 1, a stable structure can be formed. Thereby improving the stability of the compound represented by the chemical formula 1, for example, when applied to an organic light-emitting device as a dopant for the light-emitting layer, it can show the advantages of improving diode characteristics, such as improving the life when applied to an organic light-emitting diode. In addition, due to the extension of the conjugated structure, it can be used as a dopant for a light-emitting layer, such as a green light-emitting layer or a blue light-emitting layer, preferably a green light-emitting layer. Furthermore, due to the substituent (i.e., R4) substituted on the benzene at the lower end of the core central skeleton of the chemical formula 1 of the present invention, it has a narrow half-peak width even in the green light wavelength, and can show the advantages of effectively improving the color gamut and improving the luminous efficiency by fine-tuning to a specific wavelength band in the green region. According to an embodiment of the present invention, the chemical formula 1 can be represented by one of the following chemical formulas 2 to 4.

[0070] Chemical formula 2:

[0071]

[0072] Chemical formula 3:

[0073]

[0074] Chemical formula 4:

[0075]

[0076] In the chemical formula 2 to the chemical formula 4,

[0077] L and Ar1 are as defined in the chemical formula 1,

[0078] R 11 To R 13 , R 21 To R 24 , R 31 To R 33 , R 41 To R 43 , R 51 , R 53 , R 54 , R 61to R 68 、R 71 to R 76 and R 81 to R 83 are the same as or different from each other, and each can independently be one selected from hydrogen, deuterium, cyano group, trifluoromethyl group, nitro group, halogen, hydroxyl group, trimethylsilyl (TMS), substituted or unsubstituted alkyl having 1 to 30 carbon atoms, substituted or unsubstituted cycloalkyl having 3 to 20 carbon atoms, substituted or unsubstituted alkenyl having 2 to 30 carbon atoms, substituted or unsubstituted cycloalkenyl having 3 to 20 carbon atoms, substituted or unsubstituted alkynyl having 2 to 30 carbon atoms, substituted or unsubstituted cycloalkynyl having 3 to 20 carbon atoms, substituted or unsubstituted aryl having 6 to 30 carbon atoms, substituted or unsubstituted arylalkyl having 7 to 30 carbon atoms, substituted or unsubstituted heteroaryl having 5 to 60 carbon atoms, substituted or unsubstituted heteroarylalkyl having 6 to 60 carbon atoms, substituted or unsubstituted amino group, substituted or unsubstituted alkylamino having 1 to 30 carbon atoms, substituted or unsubstituted arylalkylamino having 7 to 30 carbon atoms, substituted or unsubstituted arylamino having 6 to 30 carbon atoms, substituted or unsubstituted heteroarylamino having 5 to 60 carbon atoms, substituted or unsubstituted silyl, substituted or unsubstituted alkylsilyl having 1 to 30 carbon atoms, substituted or unsubstituted arylsilyl having 6 to 30 carbon atoms, substituted or unsubstituted alkoxy having 1 to 30 carbon atoms, substituted or unsubstituted aryloxy having 6 to 30 carbon atoms, substituted or unsubstituted alkylthio having 1 to 30 carbon atoms and substituted or unsubstituted arylthio having 6 to 30 carbon atoms, and may combine with adjacent groups to form a substituted or unsubstituted ring,

[0079] When the said R 11 to R 13 、R 21 to R 24 、R 31 to R 33 、R 41 to R 43 、R 51 、R 53 、R 54 、R 61 to R 68 、R 71 to R 76 、R 81 to R 83When Ar1 is substituted, each substituent can be independently substituted by one or more substituents selected from deuterium, cyano, nitro, halogen, hydroxy, alkyl having 1 to 30 carbon atoms, alkenyl having 2 to 30 carbon atoms, alkynyl having 2 to 24 carbon atoms, heteroalkyl having 2 to 30 carbon atoms, aralkyl having 6 to 30 carbon atoms, cycloalkyl having 3 to 20 carbon atoms, heterocycloalkyl having 3 to 20 carbon atoms, aryl having 6 to 30 carbon atoms, heteroaryl having 2 to 30 carbon atoms, heteroarylalkyl having 3 to 30 carbon atoms, alkoxy having 1 to 30 carbon atoms, alkylsilyl having 1 to 30 carbon atoms, arylsilyl having 6 to 30 carbon atoms, and aryloxy having 6 to 30 carbon atoms. When substituted by a plurality of substituents, they may be the same or different from each other and may combine with adjacent groups to form a substituted or unsubstituted ring.

[0080] According to one embodiment of the present invention, the R 11 to R 13 、R 21 to R 24 、R 31 to R 33 、R 41 to R 43 、R 51 、R 53 、R 54 、R 61 to R 68 、R 71 to R 76 and R 81 to R 83 are the same or different from each other and can each independently be selected from hydrogen, deuterium, cyano, substituted or unsubstituted methyl, substituted or unsubstituted ethyl, substituted or unsubstituted propyl, substituted or unsubstituted isopropyl, substituted or unsubstituted butyl, substituted or unsubstituted sec-butyl, substituted or unsubstituted isobutyl, substituted or unsubstituted tert-butyl, substituted or unsubstituted pentyl, substituted or unsubstituted isopentyl, substituted or unsubstituted hexyl, substituted or unsubstituted phenyl, substituted or unsubstituted naphthyl, substituted or unsubstituted anthracenyl, substituted or unsubstituted phenanthrenyl, substituted or unsubstituted fluorenyl, substituted or unsubstituted dimethylfluorenyl, substituted or unsubstituted diphenylfluorenyl, substituted or unsubstituted spirofluorenyl, substituted or unsubstituted dibenzofuranyl, substituted or unsubstituted dibenzothiophenyl, substituted or unsubstituted phenylcarbazolyl, substituted or unsubstituted 9-phenylcarbazolyl, substituted or unsubstituted carbazolyl, and substituted or unsubstituted diphenylamino.

[0081] According to one embodiment of the present invention, R 11 to R 13 、R 21 to R24 , R 31 to R 33 , R 41 to R 43 , R 51 , R 53 , R 54 , R 61 to R 68 , R 71 to R 76 and R 81 to R 83 are the same as or different from one another, and each may independently be one selected from hydrogen, deuterium, cyano, a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 carbon atoms, a substituted or unsubstituted heteroaryl group having 5 to 60 carbon atoms, and a substituted or unsubstituted arylamino group having 6 to 30 carbon atoms.

[0082] According to an embodiment of the present invention, the R 11 to R 13 , R 21 to R 24 , R 31 to R 33 , R 41 to R 43 , R 51 , R 53 , R 54 , R 61 to R 68 , R 71 to R 76 and R 81 to R 83 are the same as or different from one another, and each may independently be one selected from hydrogen, deuterium, cyano, unsubstituted methyl, unsubstituted tert-butyl, a substituted or unsubstituted phenyl group, a substituted or unsubstituted carbazolyl group, and a substituted or unsubstituted diphenylamino group.

[0083] According to an embodiment of the present invention, the R 12 , R 23 and R 32 are the same as or different from one another, and each may independently be one selected from hydrogen, deuterium, and unsubstituted tert-butyl.

[0084] According to an embodiment of the present invention, the R 42 may be one selected from cyano, methyl, tert-butyl, a deuterium-substituted or unsubstituted diphenylamino group, and a deuterium-substituted or unsubstituted carbazolyl group.

[0085] According to an embodiment of the present invention, L may be one selected from a single bond and a deuterium-substituted or unsubstituted phenylene group.

[0086] According to an embodiment of the present invention, Ar1 may be one selected from a substituted or unsubstituted aryl group having 6 to 30 carbon atoms, a substituted or unsubstituted heteroaryl group having 5 to 60 carbon atoms, and a substituted or unsubstituted arylamino group having 6 to 30 carbon atoms.

[0087] According to an embodiment of the present invention, Ar1 may be one selected from a substituted or unsubstituted phenyl group, a substituted or unsubstituted biphenyl group, a substituted or unsubstituted terphenyl group, a substituted or unsubstituted naphthyl group, a substituted or unsubstituted dibenzofuranyl group, and a substituted or unsubstituted dibenzothiophenyl group.

[0088] According to an embodiment of the present invention, Ar1 may be selected from the following structural formulas a1 to a15.

[0089]

[0090] In the formulas a1 to a15, Dn represents the number of deuterium substituted in the structure, where n representing the number of deuterium is an integer of 0 or more.

[0091] According to an embodiment of the present invention, in formula a1, n is an integer selected from 0 to 3; in formula a2, n is an integer selected from 0 to 5; in formula a3, n is an integer selected from 0 to 4; in formula a4, n is an integer selected from 0 to 9; in formula a5, n is an integer selected from 0 to 13; in formulas a6 to a7, n is an integer selected from 0 to 7; in formulas a8 to a15, n is an integer selected from 0 to 7.

[0092] According to an embodiment of the present invention, Chemical Formula 1 may be represented by the following Chemical Formula 5.

[0093] Chemical Formula 5:

[0094]

[0095] In Chemical Formula 5, R 11 to R 13 、R 21 to R 24 、R 31 to R 33 、R 41 to R 43 、R 51 、R 53 and R 54 are defined as described in Chemical Formulas 2 to 4, X2 is oxygen (O) or sulfur (S), and ** represents the position connected within the ring structure containing X2.

[0096] R 52 、R 91 to R 98Same as or different from each other, and each may independently be selected from hydrogen, deuterium, cyano group, trifluoromethyl group, nitro group, halogen, hydroxyl group, trimethylsilyl (TMS), substituted or unsubstituted alkyl having 1 to 30 carbon atoms, substituted or unsubstituted cycloalkyl having 3 to 20 carbon atoms, substituted or unsubstituted alkenyl having 2 to 30 carbon atoms, substituted or unsubstituted cycloalkenyl having 3 to 20 carbon atoms, substituted or unsubstituted alkynyl having 2 to 30 carbon atoms, substituted or unsubstituted cycloalkynyl having 3 to 20 carbon atoms, substituted or unsubstituted aryl having 6 to 30 carbon atoms, substituted or unsubstituted arylalkyl having 7 to 30 carbon atoms, substituted or unsubstituted heteroaryl having 5 to 60 carbon atoms, substituted or unsubstituted heteroarylalkyl having 6 to 60 carbon atoms, substituted or unsubstituted amino group, substituted or unsubstituted alkylamino having 1 to 30 carbon atoms, substituted or unsubstituted arylalkylamino having 7 to 30 carbon atoms, substituted or unsubstituted arylamino having 6 to 30 carbon atoms, substituted or unsubstituted heteroarylamino having 5 to 60 carbon atoms, substituted or unsubstituted silyl, substituted or unsubstituted alkylsilyl having 1 to 30 carbon atoms, substituted or unsubstituted arylsilyl having 6 to 30 carbon atoms, substituted or unsubstituted alkoxy having 1 to 30 carbon atoms, substituted or unsubstituted aryloxy having 6 to 30 carbon atoms, substituted or unsubstituted alkylthio having 1 to 30 carbon atoms and substituted or unsubstituted arylthio having 6 to 30 carbon atoms, and may combine with adjacent groups to form a substituted or unsubstituted ring,

[0097] The R 52 、R 91 to R 98 When substituted, each substituent may independently be substituted with one or more substituents selected from deuterium, cyano group, nitro group, halogen, hydroxyl group, alkyl having 1 to 30 carbon atoms, alkenyl having 2 to 30 carbon atoms, alkynyl having 2 to 24 carbon atoms, heteroalkyl having 2 to 30 carbon atoms, arylalkyl having 6 to 30 carbon atoms, cycloalkyl having 3 to 20 carbon atoms, heterocycloalkyl having 3 to 20 carbon atoms, aryl having 6 to 30 carbon atoms, heteroaryl having 2 to 30 carbon atoms, heteroarylalkyl having 3 to 30 carbon atoms, alkoxy having 1 to 30 carbon atoms, alkylsilyl having 1 to 30 carbon atoms, arylsilyl having 6 to 30 carbon atoms and aryloxy having 6 to 30 carbon atoms. When substituted with a plurality of substituents, they are the same as or different from each other, and may combine with adjacent groups to form a substituted or unsubstituted ring.

[0098] According to an embodiment of the present invention, the connection position represented by ** may be R 95 、R96 , R 97 and R 98 among the following.

[0099] According to an embodiment of the present invention, R 53 may be one selected from hydrogen, deuterium, and substituted or unsubstituted alkyl groups having 1 to 30 carbon atoms.

[0100] According to an embodiment of the present invention, R 53 may be one selected from hydrogen, deuterium, and unsubstituted tert-butyl.

[0101] According to an embodiment of the present invention, the chemical formula 1, specifically, the chemical formula 5 can be represented by one of the following chemical formulas 6 to 9.

[0102] Chemical formula 6:

[0103]

[0104] Chemical formula 7:

[0105]

[0106] Chemical formula 8:

[0107]

[0108] Chemical formula 9:

[0109]

[0110] In the chemical formulas 6 to 9, R 11 to R 13 , R 21 to R 24 , R 31 to R 33 , R 41 to R 43 , R 51 , R 53 to R 54 , as defined in the description of the chemical formulas 2 to 4, X2, R 52 and R 91 to R 98 are as defined in the chemical formula 5.

[0111] According to an embodiment of the present invention, the chemical formula 1 can be represented by the following chemical formula 10.

[0112] Chemical formula 10:

[0113]

[0114] In the chemical formula 10,

[0115] X1 is as defined in the said Chemical Formula 1, R 11 to R 13 , R 21 to R 24 , R 31 to R 33 , R 41 to R 43 as defined in the descriptions of the said Chemical Formulas 2 to 4, X2 and R 91 to R 98 as defined in the description of the said Chemical Formula 5, ** represents the position connected within the ring structure containing X2.

[0116] R 101 to R 104 are the same as or different from each other, and each can independently be one selected from hydrogen, deuterium, cyano, trifluoromethyl, nitro, halogen, hydroxyl, trimethylsilyl (TMS), substituted or unsubstituted alkyl having 1 to 30 carbon atoms, substituted or unsubstituted cycloalkyl having 3 to 20 carbon atoms, substituted or unsubstituted alkenyl having 2 to 30 carbon atoms, substituted or unsubstituted cycloalkenyl having 3 to 20 carbon atoms, substituted or unsubstituted alkynyl having 2 to 30 carbon atoms, substituted or unsubstituted cycloalkynyl having 3 to 20 carbon atoms, substituted or unsubstituted aryl having 6 to 30 carbon atoms, substituted or unsubstituted arylalkyl having 7 to 30 carbon atoms, substituted or unsubstituted heteroaryl having 5 to 60 carbon atoms, substituted or unsubstituted heteroarylalkyl having 6 to 60 carbon atoms, substituted or unsubstituted amino group, substituted or unsubstituted alkylamino having 1 to 30 carbon atoms, substituted or unsubstituted arylalkylamino having 7 to 30 carbon atoms, substituted or unsubstituted arylamino having 6 to 30 carbon atoms, substituted or unsubstituted heteroarylamino having 5 to 60 carbon atoms, substituted or unsubstituted silyl, substituted or unsubstituted alkylsilyl having 1 to 30 carbon atoms, substituted or unsubstituted arylsilyl having 6 to 30 carbon atoms, substituted or unsubstituted alkoxy having 1 to 30 carbon atoms, substituted or unsubstituted aryloxy having 6 to 30 carbon atoms, substituted or unsubstituted alkylthio having 1 to 30 carbon atoms and substituted or unsubstituted arylthio having 6 to 30 carbon atoms, and can combine with adjacent groups to form a substituted or unsubstituted ring,

[0117] The said R 101 to R 104When substituted, each substituent may independently be substituted with one or more substituents selected from deuterium, cyano, nitro, halogen, hydroxy, alkyl having 1 to 30 carbon atoms, alkenyl having 2 to 30 carbon atoms, alkynyl having 2 to 24 carbon atoms, heteroalkyl having 2 to 30 carbon atoms, aralkyl having 6 to 30 carbon atoms, cycloalkyl having 3 to 20 carbon atoms, heterocycloalkyl having 3 to 20 carbon atoms, aryl having 6 to 30 carbon atoms, heteroaryl having 2 to 30 carbon atoms, heteroarylalkyl having 3 to 30 carbon atoms, alkoxy having 1 to 30 carbon atoms, alkylsilyl having 1 to 30 carbon atoms, arylsilyl having 6 to 30 carbon atoms, and aryloxy having 6 to 30 carbon atoms. When substituted with a plurality of substituents, they may be the same or different from each other and may combine with adjacent groups to form a substituted or unsubstituted ring.

[0118] According to one embodiment of the present invention, the linking position represented by ** may be R 95 , R 96 , R 97 and R 98 one of them.

[0119] According to one embodiment of the present invention, R 102 may be one selected from hydrogen, deuterium, substituted or unsubstituted alkyl having 1 to 30 carbon atoms, and substituted or unsubstituted aryl having 6 to 30 carbon atoms.

[0120] According to one embodiment of the present invention, R 102 may be one selected from hydrogen, deuterium, substituted or unsubstituted methyl, substituted or unsubstituted ethyl, substituted or unsubstituted propyl, substituted or unsubstituted isopropyl, substituted or unsubstituted butyl, substituted or unsubstituted sec-butyl, substituted or unsubstituted isobutyl, substituted or unsubstituted tert-butyl, substituted or unsubstituted pentyl, substituted or unsubstituted isopentyl, substituted or unsubstituted hexyl, substituted or unsubstituted phenyl, substituted or unsubstituted naphthyl, substituted or unsubstituted anthracenyl, substituted or unsubstituted phenanthrenyl, substituted or unsubstituted fluorene, substituted or unsubstituted dimethylfluorene, substituted or unsubstituted diphenylfluorene, and substituted or unsubstituted spirofluorene.

[0121] According to one embodiment of the present invention, R 102 may be one selected from substituted or unsubstituted tert-butyl and substituted or unsubstituted phenyl.

[0122] According to one embodiment of the present invention, the Chemical Formula 1, specifically, Chemical Formula 10 may be represented by one of the following Chemical Formulas 11 to 14.

[0123] Chemical Formula 11:

[0124]

[0125] Chemical Formula 12:

[0126]

[0127] Chemical Formula 13:

[0128]

[0129] Chemical Formula 14:

[0130]

[0131] In the above Chemical Formulas 11 to 14,

[0132] X1 is defined as in Chemical Formula 1 above, and R 11 to R 13 、R 21 to R 24 、R 31 to R 33 、R 41 to R 43 are defined as described in Chemical Formulas 2 to 4 above, X2 and R 91 to R 98 are defined as described in Chemical Formula 5 above, and R 101 to R 104 are defined as in Chemical Formula 10 above.

[0133] According to an embodiment of the present invention, Chemical Formula 1 can be represented by the following Chemical Formula 15.

[0134] Chemical Formula 15:

[0135]

[0136] In the above Chemical Formula 15,

[0137] X1 and Ar1 are defined as in Chemical Formula 1 above, and R 11 to R 13 、R 21 to R 24 、R 31 to R 33 、R 41 to R 43 are defined as described in Chemical Formulas 2 to 4 above, and R 101 、R 103 and R 104 are defined as described in Chemical Formula 10 above.

[0138] R 111 to R 115Same as or different from each other, and each independently can be selected from hydrogen, deuterium, cyano group, trifluoromethyl group, nitro group, halogen, hydroxyl group, trimethylsilyl (TMS), substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, substituted or unsubstituted cycloalkyl group having 3 to 20 carbon atoms, substituted or unsubstituted alkenyl group having 2 to 30 carbon atoms, substituted or unsubstituted cycloalkenyl group having 3 to 20 carbon atoms, substituted or unsubstituted alkynyl group having 2 to 30 carbon atoms, substituted or unsubstituted cycloalkynyl group having 3 to 20 carbon atoms, substituted or unsubstituted aryl group having 6 to 30 carbon atoms, substituted or unsubstituted arylalkyl group having 7 to 30 carbon atoms, substituted or unsubstituted heteroaryl group having 5 to 60 carbon atoms, substituted or unsubstituted heteroarylalkyl group having 6 to 60 carbon atoms, substituted or unsubstituted amino group, substituted or unsubstituted alkylamino group having 1 to 30 carbon atoms, substituted or unsubstituted arylalkylamino group having 7 to 30 carbon atoms, substituted or unsubstituted arylamino group having 6 to 30 carbon atoms, substituted or unsubstituted heteroarylamino group having 5 to 60 carbon atoms, substituted or unsubstituted silyl group, substituted or unsubstituted alkylsilyl group having 1 to 30 carbon atoms, substituted or unsubstituted arylsilyl group having 6 to 30 carbon atoms, substituted or unsubstituted alkoxy group having 1 to 30 carbon atoms, substituted or unsubstituted aryloxy group having 6 to 30 carbon atoms, substituted or unsubstituted alkylthio group having 1 to 30 carbon atoms and substituted or unsubstituted arylthio group having 6 to 30 carbon atoms, and can combine with adjacent groups to form a substituted or unsubstituted ring.

[0139] Said R 111 to R 115 When being substituted, each substituent can independently be substituted by one or more substituents selected from deuterium, cyano group, nitro group, halogen, hydroxyl group, alkyl group having 1 to 30 carbon atoms, alkenyl group having 2 to 30 carbon atoms, alkynyl group having 2 to 24 carbon atoms, heteroalkyl group having 2 to 30 carbon atoms, arylalkyl group having 6 to 30 carbon atoms, cycloalkyl group having 3 to 20 carbon atoms, heterocycloalkyl group having 3 to 20 carbon atoms, aryl group having 6 to 30 carbon atoms, heteroaryl group having 2 to 30 carbon atoms, heteroarylalkyl group having 3 to 30 carbon atoms, alkoxy group having 1 to 30 carbon atoms, alkylsilyl group having 1 to 30 carbon atoms, arylsilyl group having 6 to 30 carbon atoms and aryloxy group having 6 to 30 carbon atoms. When being substituted by a plurality of substituents, they are the same as or different from each other, and can combine with adjacent groups to form a substituted or unsubstituted ring.

[0140] According to an embodiment of the present invention, R 111 to R 115 Same as or different from each other, and each independently is hydrogen or deuterium.

[0141] According to an embodiment of the present invention, the compound represented by Chemical Formula 1 may be selected from the group consisting of the following Compounds 1 to 1137, but is not limited thereto.

[0142]

[0143]

[0144]

[0145]

[0146]

[0147]

[0148]

[0149]

[0150]

[0151]

[0152]

[0153]

[0154]

[0155]

[0156]

[0157]

[0158]

[0159]

[0160]

[0161]

[0162]

[0163]

[0164]

[0165]

[0166]

[0167]

[0168]

[0169]

[0170]

[0171]

[0172]

[0173]

[0174]

[0175]

[0176]

[0177]

[0178]

[0179]

[0180]

[0181]

[0182] According to an example of the present invention, the organic layer of the organic light-emitting diode may include one or more layers of a hole injection layer, a hole transport layer, an electron blocking layer, a light-emitting layer, a hole blocking layer, an electron transport layer, or an electron injection layer, and may further include a charge generation layer, a hole transport assisting layer, a light-emitting assisting layer, an electron transport assisting layer, etc.

[0183] For example, the organic light-emitting diode may have a structure in which a first electrode (anode), a hole injection layer (Hole Injection Layer, HIL), a hole transport layer (Hole Transp ort Layer, HTL), an electron blocking layer (Electron Blocking Layer, EBL), a light-emitting layer (Emitting Layer, EML), a hole blocking layer (HoleBlocking Layer, HBL), an electron transport layer (Electron Transport Layer, ETL), an electron injection layer (Electron Injection Layer, EIL), and a second electrode (cathode) are sequentially stacked.

[0184] For example, the first electrode may include substances such as indium tin oxide (ITO), indium zinc oxide (IZO), tin oxide (SnO2), zinc oxide (ZnO), etc., which are transparent and have excellent conductivity.

[0185] There is no particular limitation on the above hole injection layer or hole transport layer compound, and any compound can be used as long as it is generally used as a hole injection layer or hole transport layer compound. Non-limiting examples of the hole injection layer or hole transport layer compound may include phthalocyanine derivatives, porphyrin derivatives, triarylamine derivatives, indolocarbazole derivatives. For example, it includes 1,4,5,8,9,11-hexaazatriphenylenehexacarbonitrile (HAT-CN), copper phthalocyanine (CuPc), 4,4',4'-tris(3-methylphenylamino)triphenylamine (m-MTDATA), 4,4',4'-tris(3-methylphenylamino)phenoxybenzene (m-MTDAPB), 4,4',4'-tris(N-carbazolyl)triphenylamine (TCTA), 4,4',4'-tris(N-(2-naphthyl)-N-phenylamino)-triphenylamine (2-TNATA), N4,N4,N4',N4'-tetra([1,1'-biphenyl]-4-yl)-[1,1'-biphenyl]-4,4'-diamine (N4,N4,N4',N4'-Tetra([1,1'-biphe nyl]-4-yl)-[1,1'-biphenyl]-4,4'-diamine), bis(N-(1-naphthyl-n-phenyl))benzidine (α-NPD), N,N'-di(naphthalen-1-yl)-N,N'-biphenyl-benzidine (NPB), or N,N'-biphenyl-N,N'-bis(3-methylphenyl)-1,1'-biphenyl-4,4'-diamine (TPD), etc.

[0186] In the present invention, the light emitting layer (EML) may include the compound represented by Chemical Formula 1, for example, a green light emitting layer or a blue light emitting layer, preferably a dopant for a green light emitting layer. By including the compound represented by Chemical Formula 1, the performance of the organic light emitting diode may be improved.

[0187] As the host compound of the light-emitting layer, a light-emitting host substance can be used, for example, a hole transport host and an electron transport host or a combination thereof can be used. As non-limiting examples of light-emitting host compounds, condensed ring derivatives such as anthracene and pyrene, distyryl anthracene derivatives or distyryl benzene derivatives such as distyryl derivatives, tetraphenyl butadiene derivatives, cyclopentadiene derivatives, fluorene derivatives, benzofluorene derivatives, N-phenyl carbazole derivatives, carbonitrile derivatives, etc. can be cited. As non-limiting examples of hole transport host substances, carbazole derivatives, dibenzofuran derivatives, dibenzothiophene derivatives, triarylamine derivatives, indole carbazole derivatives and benzoxazine phenoxazine derivatives can be cited. As non-limiting examples of electron transport host substances, pyridine derivatives, triazine derivatives, phosphine oxide derivatives, benzofuran pyridine derivatives and dibenzoxazine derivatives can be cited. For example, including 9,10-bis(2-naphthyl)anthracene (ADN), tris(8-hydroxyquinoline)aluminum (Alq3), Balq (8-hydroxyquinoline beryllium salt), DPVBi (4,4'-bis(2,2-distyryl)-1,1'-biphenyl) series, spiro-DPVBi (spiro-4,4'-bis(2,2-distyryl)-1,1'-biphenyl), LiPBO (2-(2-benzoxazolyl))-phenol lithium salt), bis(biphenylvinyl)benzene, aluminum-quinoline metal complex, imidazole, thiazole, oxazole metal complex, etc.

[0188] According to one embodiment of the present invention, when the compound represented by Chemical Formula 1 is used as a dopant for a green light-emitting layer, 5-(3-(dibenzo[b,d]furan-1-yl)phenyl)-5H-benzofuro[3,2-c]carbazole (5-(3-(dibenzo[b,d]furan-1-yl)phen yl)-5H-benzofuro[3,2-c]carbazole), a compound disclosed in WO2020122118A, WO2022196749A or WO2022230574A can be used as a host, and when the compound represented by Chemical Formula 1 is used as a dopant for a blue light-emitting layer, 9-(1-naphthyl)-10-(2-naphthyl)anthracene (9-(1-Naphtyl)-10-(2-Naphtyl)anthracene), WO The compounds disclosed in 2005061656A or JP2005314239A are used as the main components.

[0189] According to an embodiment of the present invention, when the total weight of the dopant and the host in the light-emitting layer is 100 weight percentages, 1 to 20 weight percentages, for example, 2 to 15 weight percentages, for example, 3 to 10 weight percentages, for example, 4 to 6 weight percentages of the dopant may be included.

[0190] An electron blocking layer (EBL) may also be formed between the hole transport layer and the light-emitting layer. There is no particular limitation on the electron blocking layer compound, and any compound can be used as long as it is generally used as an electron blocking layer compound. For example, the electron blocking layer may include N-phenyl-N-(4-(spiro[benzo[d,e]anthracene-7,9'-fluorene]-2'-yl)phenyl)dibenz[b,d]furan-4-amine), etc.

[0191] There is no particular limitation on the electron injection layer or electron transport layer compound, and any compound can be used as long as it is generally used as an electron injection layer or electron transport layer compound. As non-limiting examples of the electron injection layer or electron transport layer compound, pyridine derivatives, naphthalene derivatives, anthracene derivatives, phenanthroline derivatives, perylene derivatives, coumarin derivatives, naphthalimide derivatives, anthraquinone derivatives, dibenzoquinone derivatives, diphenylquinone derivatives, perylene derivatives, oxadiazole derivatives, thiophene derivatives, triazole derivatives, thiadiazole derivatives, metal complexes of auxin derivatives, quinolinyl metal complexes, quinoxaline derivatives, polymers of quinoxaline derivatives, benzazole compounds, gallium complexes, pyrazole derivatives, perfluorophenyl derivatives, triazine derivatives, pyrazine derivatives, benzoquinoline derivatives, imidazopyridine derivatives, borane derivatives, benzimidazole derivatives, benzoxazole derivatives, benzothiazole derivatives, quinoline derivatives, oligopyridine derivatives such as terpyridine, bipyridine derivatives, terpyridine derivatives, naphthyridine derivatives, aldazine derivatives, carbazole derivatives, indole derivatives, phosphine oxide derivatives, stilbene derivatives, hydroxyquinoline metal complexes, oxazole metal complexes, azomethine metal complexes, tropolone metal complexes, flavonol metal complexes, benzoquinoline metal complexes, metal salts, etc. These materials can be used alone, but it is also okay to use them in combination with other materials. For example, it may include substances such as 2-(4-(9,10-di(naphthalen-2-yl)anthracen-2-yl)phenyl)-1-phenyl-1H-benzo[d]imidazole, tris(8-hydroxyquinoline)aluminum (Alq3), LiF, Liq, Li2O, BaO, NaCl, CsF, etc.

[0192] The second electrode (cathode) may include substances such as lithium (Li), aluminum (Al), aluminum-lithium (Al-Li), calcium (Ca), magnesium (Mg), magnesium-indium (Mg-In), magnesium-silver (Mg-Ag), etc. Also, in the case of a front-emitting organic light-emitting diode, indium tin oxide (ITO) or indium zinc oxide (IZO) may also be used to form a light-transmitting transparent cathode.

[0193] One or more cover layers (protective layer or encapsulation layer) may be located on the surface of the first electrode or the second electrode. There is no particular limitation on the cover layer compound, and any compound may be used as long as it is generally used as a cover layer compound. Non-limiting examples of the cover layer compound may include arylamine derivatives, naphthalene derivatives, anthracene derivatives, phenanthrene derivatives, carbazole derivatives, pyridine derivatives, dibenzofuran derivatives, dibenzothiophene derivatives, pyrimidine derivatives, quinoline derivatives, isoquinoline derivatives, benzoxazole derivatives, benzothiazole derivatives, benzimidazole derivatives, N4,N4'-bis[4-[bis(3-methylphenyl)amino]phenyl]-N4,N4'-diphenyl-[1,1'-biphenyl]-4,4'-diamine (DNTPD), tris(8-hydroxyquinoline)aluminum (Alq3), LiF, Liq, Li2O, BaO, NaCl, CsF, etc.

[0194] The organic light-emitting diode according to an embodiment of the present invention may be a front-emitting type or a back-emitting type.

[0195] The organic light-emitting diode according to an embodiment of the present invention may be used in a display device. The organic light-emitting diode according to an embodiment of the present invention may be applied to a transparent display device, a mobile display device, a flexible display device, etc., but is not limited thereto.

[0196] Hereinafter, synthesis examples, preparation examples, and experimental examples of the compounds will be described through representative examples. However, the synthesis method of the compounds of the present invention is not limited to the methods illustrated below, or the implementation of the present invention is not limited to the following embodiments.

[0197] Synthesis Example:

[0198] The final product of the present invention (Product) may be synthesized as shown in the following Reaction Scheme 1 (Buchwald-Hartwig Cross Coupling Reaction), but is not limited thereto.

[0199] Reaction Scheme 1:

[0200]

[0201] The organic compound represented by Chemical Formula 1 (“Product”) of the present invention can be synthesized according to the above Reaction Formula 1. The specific synthesis method is as follows, but is not limited thereto.

[0202] Under nitrogen (N2) conditions, 20.0 mmol (1 eq) of the Reactant and 10 volumes of t-butylbenzene were placed in a 500 mL flask. 40.0 mmol (2 eq) of t-Butyllithium (t-Bu Li) was slowly added at -78 °C, and the mixture was stirred at room temperature for 1 hour and then at 70 °C for 2 hours. After confirming the disappearance of all Reactants by thin layer chromatography, 40 mmol (2 eq) of Borontribromide (BBr3) was added at -78 °C, and the mixture was stirred at room temperature for 1 hour and then at 70 °C for 2 hours. After confirming the completion of the reaction by thin layer chromatography, 40.0 mmol (2 eq) of Diisopropylethylamine (DIPEA) was added, and the mixture was stirred at room temperature for 2 hours. Then water was added, and the organic layer was extracted with dichloromethane. Residual moisture in the extracted organic layer was removed using MgSO4, filtered, concentrated, and then purified by silica column chromatography. Then recrystallization was performed using a mixed solvent of dichloromethane and acetone to obtain the Product shown in Table 1 below.

[0203] Table 1

[0204]

[0205]

[0206]

[0207]

[0208]

[0209]

[0210]

[0211]

[0212]

[0213]

[0214]

[0215]

[0216]

[0217]

[0218]

[0219]

[0220]

[0221]

[0222] Preparation Example: Preparation of Organic Light-Emitting Diode (Green Emitting Layer)

[0223] Example 1:

[0224] The substrate laminated with ITO (100 nm) as the first electrode of the organic light-emitting diode is divided into the second electrode, the first electrode region, and the insulating layer and patterned by the exposure (Photo-Lithograph) process, and then the surface is treated with UV-ozone (Ozone) treatment and O2:N2 plasma to achieve the purpose of cleaning and improving the work-function of the first electrode (ITO).

[0225] Then, 1,4,5,8,9,11-Hexaazatriphenylenehexacarbonitrile (HAT-CN) is deposited on the first electrode as a hole injection layer (HIL) with a thickness of 10 nm. Then, N4,N4,N4',N4'-Tetra([1,1'-biphenyl]-4-yl)-[1,1'-biphenyl]-4,4'-diamine is vacuum deposited on the upper part of the hole injection layer as a hole transport layer with a thickness of 90 nm, and N-Phenyl-N-(4-(spiro[benzo[d,e]anthracene-7,9'-fluorene]-2'-yl)phenyl)dibenzo[b,d]furan-4-amine) is formed on the upper part of the hole transport layer (HTL) as an electron blocking layer (EBL) with a thickness of 15 nm.

[0226] Using 5-(3-(dibenzo[b,d]furan-1-yl)phenyl)-5H-benzofuro[3,2-c]carbazole as the host of the green emitting layer (EML) and using the following Compound 7 as the dopant, deposit the green emitting layer (EML) with a thickness of 25 nm on the upper part of the electron blocking layer (EBL). At this time, the mixing ratio (by weight standard) of the host to the dopant is 95:5. On the green emitting layer (EML), mix 2-(4-(9,10-di(naphthalene-2-yl)anthracene-2-yl)phenyl)-1-phenyl-1H-benzo[d]imidazole and Liq in a weight ratio of 1:1 and deposit it with a thickness of 25 nm as the electron transport layer (ETL). Then, deposit a mixture of magnesium and silver (Ag) mixed in a weight ratio of 1:4 with a thickness of 16 nm as the second electrode. On the second electrode, deposit N4,N4'-bis[4-[bis(3-methylphenyl)amino]phenyl]-N4,N4'-diphenyl-[1,1'-biphenyl]-4,4'-diamine (DNTPD) with a thickness of 60 nm as the capping layer. Bond a seal cap containing a moisture absorbent to the capping layer with a UV curable adhesive to form a protective film (encapsulation layer or protecting layer) to prepare an organic light emitting diode, so as to protect the organic light emitting diode from oxygen or moisture in the atmosphere.

[0227] Examples 2 to 114:

[0228] Except for using the compounds in Table 2 below instead of Compound 7 in Example 1 as the dopant, prepare the organic light emitting diodes of Examples 2 to 114 respectively using the same method as in Example 1.

[0229] Comparative Examples 1 to 3:

[0230] Except for using the compounds in Table 2 below instead of Compound 7 in Example 1 as the dopant, prepare the organic light emitting diodes of Comparative Examples 1 to 3 respectively using the same method as in Example 1. Compounds A to C used in Comparative Examples 1 to 3 are shown below.

[0231]

[0232] Experimental Example 1: Performance Experiment of Organic Light-Emitting Diode

[0233] For each of the organic light-emitting diodes prepared in Examples 1 to 114 and Comparative Examples 1 to 3, a current of 10 mA / cm² was applied using a CS-2000 from KONICA MINOLTA to measure the driving voltage (V) and the external quantum efficiency (EQE) (%). Also, using an M6000 from McScience, the lifetime (LT95) (hours (hrs)) was measured in such a way that a constant current drive of 10 mA / cm² was used to confirm the time required for the brightness to decrease from the initial brightness to the 95% level. The measurement results are shown in Table 2 below. 2 of the current to measure the driving voltage (V) and the external quantum efficiency (EQE) (%). And, using an M6000 from McScience, the lifetime (LT95) (hours (hrs)) was measured in such a way that a constant current drive of 10 mA / cm² was used to confirm the time required for the brightness to decrease from the initial brightness to the 95% level. The measurement results are shown in Table 2 below. 2 The measurement results are shown in Table 2 below.

[0234] Table 2

[0235]

[0236]

[0237]

[0238]

[0239] Chemical formula 1 of the present invention has a boron (B) core structure and an aromatic polycyclic structure centered on the boron and connected by nitrogen (N) elements on the left and right. Its structural feature is that the nitrogen on the left side of the core is fused with a carbazole group, and the nitrogen on the right side of the core and the boron together form a fused ring with element A. Ar1 connected by a linking group (L) binds to the nitrogen on the right side of the central skeleton containing the core structure. Therefore, from the results of the above experimental examples,

[0240] it was confirmed that the driving voltage of the organic light-emitting diode containing formula 1 of the present invention as a light-emitting layer dopant is much lower than that of the organic light-emitting diodes of Comparative Examples 1 to 3 of compounds A to C that do not satisfy chemical formula 1.

[0241] In addition, it was confirmed that the deformation of the molecular structure is suppressed by the fusion of the carbazole group on the left side of the core and the fusion of element A on the right side of the core, and the resonance structure is extended within the molecule by connecting multiple aromatic rings shown in chemical formula 1 to form a stable structure. Therefore, compared with the organic light-emitting diodes of Comparative Examples 1 to 3, the lifetime when applied to an organic light-emitting diode is increased by improving the stability of the dopant molecule.

[0242] Moreover, it was also confirmed that the luminous efficiency was improved due to the substituents substituted on the benzene at the lower end of the core central skeleton of Chemical Formula 1 of the present invention, as compared with the organic light-emitting diodes of Comparative Examples 1 to 3.

[0243] Experimental Example 2: Photoluminescence (abbreviated as "PL") measurement

[0244] In order to confirm whether the compound represented by Chemical Formula 1 of the present invention is suitable as a dopant material for a green light-emitting layer, according to the Photoluminescence measurement method, the emission wavelength (unit: nm) and the corresponding intensity (unit: a.u.) were measured using Gaussian software (Gaussian software, B3LYP DFT 6-31G(d) by Gaussian’16.0). The emission wavelength value corresponding to the peak of the maximum emission intensity in the PL spectrum is shown in Table 3 below.

[0245] Table 3

[0246]

[0247] Chemical Formula 1 of the present invention has the following t-DABNA structure, that is, it has a boron (B) core structure and an aromatic polycyclic structure centered on the boron and connected by nitrogen (N) elements on the left and right. However, different from t-DABNA, in Chemical Formula 1 of the present invention, the nitrogen on the left side of the core is fused with a carbazole group, and the nitrogen on the right side of the core forms a fused ring with A element together with boron. Therefore, it was confirmed by the results of the PL measurement method that it emits light in the green region (the green region wavelength is about 500 - 580 nm).

[0248] t-DABNA:

[0249]

[0250] Although the preferred embodiments of the present invention have been described in detail above, the protection scope of the present invention is not limited thereto. Various changes and improvements made by those of ordinary skill in the art using the basic concepts of the present invention defined in the claims of the invention belong to the protection scope of the present invention.

Claims

1. An organic compound represented by the following chemical formula 1, characterized in that: Chemical formula 1: In the chemical formula 1, the structure of the A unit can be selected from the following structures (A-1) and (A-2), * represents a binding site, Wherein, X1 is oxygen or sulfur, o, q, r are integers selected from 0 to 3, p, s, t are integers selected from 0 to 4, L is a single bond and a substituted or unsubstituted arylene group having 6 to 30 carbon atoms, Ar1 is selected from substituted or unsubstituted aryl groups having 6 to 30 carbon atoms, substituted or unsubstituted heteroaryl groups having 5 to 60 carbon atoms, substituted or unsubstituted arylamino groups having 6 to 30 carbon atoms, and compounds of formula a1( wherein Dn represents the number of deuterium substituted in the structure, and in this case, n representing the number of deuterium is an integer selected from 0 to 3), R1 to R6 are the same as or different from each other and are each independently selected from the group consisting of hydrogen, deuterium, cyano, substituted or unsubstituted alkyl having 1 to 30 carbon atoms, substituted or unsubstituted aryl having 6 to 30 carbon atoms, substituted or unsubstituted heteroaryl having 5 to 60 carbon atoms and substituted or unsubstituted arylamino having 6 to 30 carbon atoms, and can be combined with adjacent groups to form a group of formula b The structure of, where * represents the binding site, When L, Ar1, R1 to R6 are substituted, each substituent can be independently substituted by one or more substituents selected from deuterium, cyano, nitro, halogen, hydroxyl, alkyl having 1 to 30 carbon atoms, alkenyl having 2 to 30 carbon atoms, alkynyl having 2 to 24 carbon atoms, heteroalkyl having 2 to 30 carbon atoms, aralkyl having 6 to 30 carbon atoms, cycloalkyl having 3 to 20 carbon atoms, heterocycloalkyl having 3 to 20 carbon atoms, aryl having 6 to 30 carbon atoms, heteroaryl having 2 to 30 carbon atoms, heteroarylalkyl having 3 to 30 carbon atoms, alkoxy having 1 to 30 carbon atoms, alkylsilyl having 1 to 30 carbon atoms, arylsilyl having 6 to 30 carbon atoms and aryloxy having 6 to 30 carbon atoms. When substituted by multiple substituents, they are the same or different from each other.

2. The organic compound according to claim 1, characterized in that The chemical formula 1 is represented by one of the following chemical formulas 2 to 4: Chemical formula 2: Chemical formula 3: Chemical formula 4: In the chemical formula 2 to the chemical formula 4, L and Ar1 are as defined in the chemical formula 1, R 11 To R 13 , R 21 To R 24 , R 31 To R 33 , R 41 To R 43 , R 51 , R 53 , R 54 , R 61 To R 68 , R 71 To R 76 and R 81 To R 83 are the same as or different from each other and are each independently selected from hydrogen, deuterium, cyano, substituted or unsubstituted alkyl having 1 to 30 carbon atoms, substituted or unsubstituted aryl having 6 to 30 carbon atoms, substituted or unsubstituted heteroaryl having 5 to 60 carbon atoms and substituted or unsubstituted arylamino having 6 to 30 carbon atoms, When the R 11 To R 13 , R 21 To R 24 , R 31 To R 33 , R 41 To R 43 , R 51 , R 53 , R 54 , R 61 To R 68 , R 71 To R 76 , R 81 To R 83 and when Ar1 is substituted, each substituent can be independently substituted by one or more substituents selected from deuterium, cyano, nitro, halogen, hydroxyl, alkyl having 1 to 30 carbon atoms, alkenyl having 2 to 30 carbon atoms, alkynyl having 2 to 24 carbon atoms, heteroalkyl having 2 to 30 carbon atoms, aralkyl having 6 to 30 carbon atoms, cycloalkyl having 3 to 20 carbon atoms, heterocycloalkyl having 3 to 20 carbon atoms, aryl having 6 to 30 carbon atoms, heteroaryl having 2 to 30 carbon atoms, heteroarylalkyl having 3 to 30 carbon atoms, alkoxy having 1 to 30 carbon atoms, alkylsilyl having 1 to 30 carbon atoms, arylsilyl having 6 to 30 carbon atoms and aryloxy having 6 to 30 carbon atoms. When substituted by multiple substituents, they are the same or different from each other.

3. The organic compound according to claim 1, characterized in that The chemical formula 1 is represented by the following chemical formula 5: Chemical formula 5: In the chemical formula 5, R 11 To R 13 , R 21 To R 24 , R 31 To R 33 , R 41 To R 43 , R 51 To R 54 and R 91 To R 98 are the same as or different from each other and are each independently selected from hydrogen, deuterium, cyano, substituted or unsubstituted alkyl having 1 to 30 carbon atoms, substituted or unsubstituted aryl having 6 to 30 carbon atoms, substituted or unsubstituted heteroaryl having 5 to 60 carbon atoms and substituted or unsubstituted arylamino having 6 to 30 carbon atoms, X2 is oxygen or sulfur, ** is the connection position, indicating that the 95 , R 96 , R 97 and R 98 A connection in When the R 11 To R 13 , R 21 To R 24 , R 31 To R 33 , R 41 To R 43 , R 51 To R 54 and R 91 To R 98 When substituted, each substituent can be independently substituted by one or more substituents selected from deuterium, cyano, nitro, halogen, hydroxyl, alkyl having 1 to 30 carbon atoms, alkenyl having 2 to 30 carbon atoms, alkynyl having 2 to 24 carbon atoms, heteroalkyl having 2 to 30 carbon atoms, aralkyl having 6 to 30 carbon atoms, cycloalkyl having 3 to 20 carbon atoms, heterocycloalkyl having 3 to 20 carbon atoms, aryl having 6 to 30 carbon atoms, heteroaryl having 2 to 30 carbon atoms, heteroarylalkyl having 3 to 30 carbon atoms, alkoxy having 1 to 30 carbon atoms, alkylsilyl having 1 to 30 carbon atoms, arylsilyl having 6 to 30 carbon atoms and aryloxy having 6 to 30 carbon atoms. When substituted by multiple substituents, they may be the same or different from each other.

4. The organic compound according to claim 1, characterized in that The chemical formula 1 is represented by one of the following chemical formulas 6 to 9: Chemical formula 6: Chemical formula 7: Chemical formula 8: Chemical formula 9: In the chemical formulas 6 to 9, R 11 To R 13 , R 21 To R 24 , R 31 To R 33 , R 41 To R 43 , R 51 To R 54 and R 91 To R 98 are the same as or different from each other and are each independently selected from hydrogen, deuterium, cyano, substituted or unsubstituted alkyl having 1 to 30 carbon atoms, substituted or unsubstituted aryl having 6 to 30 carbon atoms, substituted or unsubstituted heteroaryl having 5 to 60 carbon atoms and substituted or unsubstituted arylamino having 6 to 30 carbon atoms, X2 is oxygen or sulfur, When the R 11 To R 13 , R 21 To R 24 , R 31 To R 33 , R 41 To R 43 , R 51 To R 54 and R 91 To R 98 When substituted, each substituent can be independently substituted by one or more substituents selected from deuterium, cyano, nitro, halogen, hydroxyl, alkyl having 1 to 30 carbon atoms, alkenyl having 2 to 30 carbon atoms, alkynyl having 2 to 24 carbon atoms, heteroalkyl having 2 to 30 carbon atoms, aralkyl having 6 to 30 carbon atoms, cycloalkyl having 3 to 20 carbon atoms, heterocycloalkyl having 3 to 20 carbon atoms, aryl having 6 to 30 carbon atoms, heteroaryl having 2 to 30 carbon atoms, heteroarylalkyl having 3 to 30 carbon atoms, alkoxy having 1 to 30 carbon atoms, alkylsilyl having 1 to 30 carbon atoms, arylsilyl having 6 to 30 carbon atoms and aryloxy having 6 to 30 carbon atoms. When substituted by multiple substituents, they may be the same or different from each other.

5. The organic compound according to claim 1, characterized in that The chemical formula 1 is represented by the following chemical formula 10: Chemical formula 10: In the chemical formula 10, X1 and X2 are each independently oxygen or sulfur, R 11 To R 13 , R 21 To R 24 , R 31 To R 33 , R 41 To R 43 , R 91 To R 98 and R 101 To R 104 are the same as or different from each other and are each independently selected from hydrogen, deuterium, cyano, substituted or unsubstituted alkyl having 1 to 30 carbon atoms, substituted or unsubstituted aryl having 6 to 30 carbon atoms, substituted or unsubstituted heteroaryl having 5 to 60 carbon atoms and substituted or unsubstituted arylamino having 6 to 30 carbon atoms, ** is the connection position, indicating that the 95 , R 96 , R 97 and R 98 A connection in When the R 11 To R 13 , R 21 To R 24 , R 31 To R 33 , R 41 To R 43 , R 91 To R 98 and R 101 To R 104 When substituted, each substituent can be independently substituted by one or more substituents selected from deuterium, cyano, nitro, halogen, hydroxyl, alkyl having 1 to 30 carbon atoms, alkenyl having 2 to 30 carbon atoms, alkynyl having 2 to 24 carbon atoms, heteroalkyl having 2 to 30 carbon atoms, aralkyl having 6 to 30 carbon atoms, cycloalkyl having 3 to 20 carbon atoms, heterocycloalkyl having 3 to 20 carbon atoms, aryl having 6 to 30 carbon atoms, heteroaryl having 2 to 30 carbon atoms, heteroarylalkyl having 3 to 30 carbon atoms, alkoxy having 1 to 30 carbon atoms, alkylsilyl having 1 to 30 carbon atoms, arylsilyl having 6 to 30 carbon atoms and aryloxy having 6 to 30 carbon atoms. When substituted by multiple substituents, they may be the same or different from each other.

6. The organic compound according to claim 1, characterized in that The chemical formula 1 is represented by one of the following chemical formulas 11 to 14: Chemical formula 11: Chemical formula 12: Chemical formula 13: Chemical formula 14: In the chemical formulas 11 to 14, X1 and X2 are each independently oxygen or sulfur, R 11 To R 13 , R 21 To R 24 , R 31 To R 33 , R 41 To R 43 , R 91 To R 98 and R 101 To R 104 are the same as or different from each other and are each independently selected from hydrogen, deuterium, cyano, substituted or unsubstituted alkyl having 1 to 30 carbon atoms, substituted or unsubstituted aryl having 6 to 30 carbon atoms, substituted or unsubstituted heteroaryl having 5 to 60 carbon atoms and substituted or unsubstituted arylamino having 6 to 30 carbon atoms, When the R 11 To R 13 , R 21 To R 24 , R 31 To R 33 , R 41 To R 43 , R 91 To R 98 and R 101 To R 104 When substituted, each substituent can be independently substituted by one or more substituents selected from deuterium, cyano, nitro, halogen, hydroxyl, alkyl having 1 to 30 carbon atoms, alkenyl having 2 to 30 carbon atoms, alkynyl having 2 to 24 carbon atoms, heteroalkyl having 2 to 30 carbon atoms, aralkyl having 6 to 30 carbon atoms, cycloalkyl having 3 to 20 carbon atoms, heterocycloalkyl having 3 to 20 carbon atoms, aryl having 6 to 30 carbon atoms, heteroaryl having 2 to 30 carbon atoms, heteroarylalkyl having 3 to 30 carbon atoms, alkoxy having 1 to 30 carbon atoms, alkylsilyl having 1 to 30 carbon atoms, arylsilyl having 6 to 30 carbon atoms and aryloxy having 6 to 30 carbon atoms. When substituted by multiple substituents, they may be the same or different from each other.

7. The organic compound according to claim 1, characterized in that The chemical formula 1 is represented by the following chemical formula 15: Chemical formula 15: In the chemical formula 15, X1 is oxygen or sulfur, Ar1 is as defined in Chemical Formula 1, R 11 To R 13 , R 21 To R 24 , R 31 To R 33 , R 41 To R 43 , R 101 , R 103 , R 104 and R 111 To R 115 are the same as or different from each other and are each independently selected from hydrogen, deuterium, cyano, substituted or unsubstituted alkyl having 1 to 30 carbon atoms, substituted or unsubstituted aryl having 6 to 30 carbon atoms, substituted or unsubstituted heteroaryl having 5 to 60 carbon atoms and substituted or unsubstituted arylamino having 6 to 30 carbon atoms, When the R 11 To R 13 , R 21 To R 24 , R 31 To R 33 , R 41 To R 43 , R 101 , R 103 , R 104 and R 111 To R 115 When substituted, each substituent can be independently substituted by one or more substituents selected from deuterium, cyano, nitro, halogen, hydroxyl, alkyl having 1 to 30 carbon atoms, alkenyl having 2 to 30 carbon atoms, alkynyl having 2 to 24 carbon atoms, heteroalkyl having 2 to 30 carbon atoms, aralkyl having 6 to 30 carbon atoms, cycloalkyl having 3 to 20 carbon atoms, heterocycloalkyl having 3 to 20 carbon atoms, aryl having 6 to 30 carbon atoms, heteroaryl having 2 to 30 carbon atoms, heteroarylalkyl having 3 to 30 carbon atoms, alkoxy having 1 to 30 carbon atoms, alkylsilyl having 1 to 30 carbon atoms, arylsilyl having 6 to 30 carbon atoms and aryloxy having 6 to 30 carbon atoms. When substituted by multiple substituents, they may be the same or different from each other.

8. An organic light emitting diode, characterized in that: include: a first electrode; a second electrode, disposed opposite to the first electrode; and One or more organic layers are disposed between the first electrode and the second electrode, At least one of the organic layers contains the organic compound according to claim 1 .

9. The organic light emitting diode according to claim 8, characterized in that ， The organic layer comprising the organic compound according to claim 1 is a green light emitting layer, The organic compound according to claim 1 is contained as a dopant for a green light emitting layer.

10. The organic light emitting diode according to claim 8, characterized in that: The organic layer further includes at least one selected from a hole injection layer, a hole transport layer, an electron transport layer and an electron injection layer.

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