Light-receiving element, electronic device, and polycyclic compound for light-receiving element

Abstract

The invention relates to a light-receiving element, an electronic device, and a polycyclic compound for the light-receiving element. The light-receiving element includes a first light-receiving electrode, a second light-receiving electrode on the first light-receiving electrode, and a light-receiving layer between the first light-receiving electrode and the second light-receiving electrode and including a polycyclic compound represented by Formula 1. Formula 1 # imgabs0 #

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to and the benefit of Korean Patent Application No. 10-2023-0120772 filed in the Korean Intellectual Property Office on September 12, 2023, the entire contents of which are incorporated herein by reference. Technical Field

[0003] One or more embodiments of the present disclosure relate to a light receiving element, an electronic device, and a polycyclic compound for a light receiving element. Background Art

[0004] Various types of electronic devices are used to provide image information, and the electronic devices provide one or more appropriate functions that allow electronic and organic communication with users (such as detecting user input). For example, current electronic devices include functions for detecting and identifying external input provided from the outside.

[0005] The external input recognition method includes a capacitance method for detecting a change in capacitance formed between electrodes, an optical method for detecting incident light using an optical sensor, and an ultrasonic method for detecting vibration using a piezoelectric material. Meanwhile, when an optical sensor is included and used, it is necessary and desirable to increase the efficiency of absorbing light and converting the absorbed light into an electrical signal to improve the sensitivity of a light receiving element of the optical sensor. Summary of the invention

[0006] One or more aspects of embodiments of the present disclosure are directed to a light receiving element having improved light receiving efficiency and improved deposition quality.

[0007] One or more aspects of embodiments of the present disclosure are directed to electronic devices having improved light-receiving efficiency.

[0008] One or more aspects of embodiments of the present disclosure are directed to a polycyclic compound capable of improving light receiving efficiency and deposition quality of a light receiving element.

[0009] Additional aspects will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the presented embodiments.

[0010] According to one or more embodiments of the present disclosure, the light receiving element includes a first light receiving electrode, a second light receiving electrode facing the first light receiving electrode, and a light receiving layer between the first light receiving electrode and the second light receiving electrode, wherein the light receiving layer includes a first compound (P type or species compound) represented by Formula 1.

[0011] Formula 1

[0012]

[0013] In formula 1, n 1 and n 2 may each independently be an integer selected from 0 to 10. 1 and Ar 2 and Q may each independently be a substituted or unsubstituted arylene group having 6 to 60 carbon atoms or a substituted or unsubstituted heteroarylene group having 2 to 60 carbon atoms. 1 and Q 2 Each may be independently represented by any one selected from Formula Q-1 to Formula Q-7.

[0014] Formula Q-1

[0015]

[0016] Formula Q-2

[0017]

[0018] Formula Q-3

[0019]

[0020] Formula Q-4

[0021]

[0022] Formula Q-5

[0023]

[0024] Formula Q-6

[0025]

[0026] Formula Q-7

[0027]

[0028] In Formulas Q-1 to Q-7, n 101 、n 102 and n 104 may each independently be an integer selected from 0 to 3. 103 and n 110 may each independently be an integer selected from 0 to 2. 108 、n 109 and n 111 may each independently be an integer selected from 0 to 5. 1 To X 3 Each may independently be oxygen, sulfur, selenium or tellurium.

[0029] R 101 To R 103R may be each independently hydrogen, deuterium, halogen, cyano, nitro, a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 carbon atoms, or a substituted or unsubstituted heteroaryl group having 2 to 30 carbon atoms. 104 To R 112 Each of them may be independently hydrogen, deuterium, halogen, cyano, nitro, substituted or unsubstituted alkyl having 1 to 30 carbon atoms, substituted or unsubstituted aryl having 6 to 30 carbon atoms, or substituted or unsubstituted heteroaryl having 2 to 30 carbon atoms. —* is a site for connection to Formula 1.

[0030] In one or more embodiments, in Formula 1, if (for example, when) Q 1 and Q 2 When each freestyle Q-1 is expressed, Q 1 and Q 2 Each may be independently represented by any one selected from the group consisting of Formulae R-11 to R-19.

[0031] Formula R-11

[0032]

[0033] Formula R-12

[0034]

[0035] Formula R-13

[0036]

[0037] Formula R-14

[0038]

[0039] Formula R-15

[0040]

[0041] Formula R-16

[0042]

[0043] Formula R-17

[0044]

[0045] Formula R-18

[0046]

[0047] Formula R-19

[0048]

[0049] In formulae R-11 to R-19, —* is a site for bonding to formula 1.

[0050] In one or more embodiments, in Formula 1, if (for example, when) Q 1 and Q 2 When each freestyle Q-2 is expressed, Q 1 and Q 2 Each may be independently represented by any one selected from the group consisting of Formula R-21 to Formula R-24.

[0051] Formula R-21

[0052]

[0053] Formula R-22

[0054]

[0055] Formula R-23

[0056]

[0057] Formula R-24

[0058]

[0059] In formulae R-21 to R-24, -* is a site for bonding to formula 1.

[0060] In one or more embodiments, in Formula 1, if (for example, when) Q 1 and Q 2 When each freestyle Q-3 is expressed, Q 1 and Q 2 Each may be independently represented by any one selected from the group consisting of Formula R-31 to Formula R-34.

[0061] Formula R-31

[0062]

[0063] Formula R-32

[0064]

[0065] Formula R-33

[0066]

[0067] Formula R-34

[0068]

[0069] In formulae R-31 to R-34, -* is a site for bonding to formula 1.

[0070] In one or more embodiments, in Formula 1, if (for example, when) Q 1 and Q 2 When each freestyle Q-4 is expressed, Q 1 and Q 2 They can be independently represented by the formula R-41 or the formula R-42.

[0071] Formula R-41

[0072]

[0073] Formula R-42

[0074]

[0075] In formula R-41 and formula R-42, -* is a site for bonding to formula 1.

[0076] In one or more embodiments, in Formula 1, if (for example, when) Q 1 and Q 2 When each freestyle Q-5 is indicated, Q 1 and Q 2 They can be each independently represented by the formula R-51 or the formula R-52.

[0077] Formula R-51

[0078]

[0079] Formula R-52

[0080]

[0081] In formula R-51 and formula R-52, -* is a site for bonding to formula 1.

[0082] In one or more embodiments, in Formula 1, if (for example, when) Q 1 and Q 2 When each freestyle Q-6 is indicated, Q 1 and Q 2 Each can be independently represented by the formula R-61.

[0083] Formula R-61

[0084]

[0085] In formula R-61, -* is a site for connection to formula 1.

[0086] In one or more embodiments, in Formula 1, if (for example, when) Q1 and Q 2 When each freestyle Q-7 is indicated, Q 1 and Q 2 Each can be independently represented by the formula R-71.

[0087] Formula R-71

[0088]

[0089] In formula R-71, -* is a site for bonding to formula 1.

[0090] In one or more embodiments, the first compound represented by Formula 1 may be represented by any one selected from Formula A-1 to Formula A-5.

[0091] Formula A-1

[0092]

[0093] Formula A-2

[0094]

[0095] Formula A-3

[0096]

[0097] Formula A-4

[0098]

[0099] Formula A-5

[0100]

[0101] In Formula A-1 to Formula A-5, X 4 and X 5 can each independently be oxygen, sulfur, selenium or tellurium. 1 and Q 2 may be the same as defined in Formula 1, respectively, independently.

[0102] In one or more embodiments, the first compound represented by Formula 1 may be represented by any one selected from Formula 1-1 to Formula 1-6.

[0103] Formula 1-1

[0104]

[0105] Formula 1-2

[0106]

[0107] Formula 1-3

[0108]

[0109] Formula 1-4

[0110]

[0111] Formula 1-5

[0112]

[0113] Formula 1-6

[0114]

[0115] In Formula 1-1 to Formula 1-6, Q 1 and Q 2 may be the same as defined in Formula 1, respectively, independently.

[0116] In one or more embodiments, the light receiving layer may further include a second compound represented by Formula 2 (N type or species compound).

[0117] Formula 2

[0118]

[0119] In formula 2, Cy 1 It may be a substituted or unsubstituted aromatic hydrocarbon ring having 6 to 30 carbon atoms. 1 and A 2 can be independently oxygen or NR 113 . R 113 It may be hydrogen, deuterium, halogen, 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 2 to 30 carbon atoms, or substituted or unsubstituted cycloalkyl having 3 to 30 carbon atoms.

[0120] In one or more embodiments, the light receiving layer may include a light absorbing layer including the first compound and a photoelectric conversion layer including the second compound.

[0121] In one or more embodiments, the photoelectric conversion layer may be on the light absorbing layer.

[0122] In one or more embodiments, an interface may be defined between the light absorbing layer and the photoelectric conversion layer.

[0123] In one or more embodiments, the light receiving element may further include a hole control layer between the first light receiving electrode and the light receiving layer, and an electron control layer between the light receiving layer and the second light receiving electrode.

[0124] In one or more embodiments, the first compound represented by Formula 1 may be any one selected from the compounds of Compound Group 1, and the second compound represented by Formula 2 may be any one selected from the compounds of Compound Group 2.

[0125] Compound Group 1

[0126]

[0127]

[0128]

[0129]

[0130]

[0131] Compound Group 2

[0132]

[0133]

[0134]

[0135]

[0136] In one or more embodiments of the present disclosure, an electronic device includes a substrate layer and a display element layer including a light-emitting element and a light-receiving element, wherein the light-emitting element includes a first light-emitting electrode on the substrate layer, an emission layer on the first light-emitting electrode, and a second light-emitting electrode on the emission layer, the light-receiving element includes a first light-receiving electrode on the substrate layer, a light-receiving layer on the first light-receiving electrode, and a second light-receiving electrode on the light-receiving layer, and the light-receiving layer includes a first compound represented by Formula 1.

[0137] In one or more embodiments of the present disclosure, the polycyclic compound is represented by Formula 1. BRIEF DESCRIPTION OF THE DRAWINGS

[0138] The attached drawings are included to provide a further understanding of the present disclosure and are incorporated into and constitute a part of the present disclosure. The drawings illustrate embodiments of the present disclosure and, together with the description, are used to explain the principles of the present disclosure. The above and / or other aspects of the present disclosure should become apparent and understandable through the following description of the embodiments in conjunction with the attached drawings. In the drawings:

[0139] Figure 1 is a perspective view of an electronic device according to one or more embodiments of the present disclosure;

[0140] Figure 2is an exploded perspective view of an electronic device according to one or more embodiments of the present disclosure;

[0141] Figure 3 is a cross-sectional view of an electronic device according to one or more embodiments of the present disclosure;

[0142] Figure 4 A plan view of a portion of a display module according to one or more embodiments of the present disclosure;

[0143] Figure 5 A cross-sectional view showing a portion of a display module according to one or more embodiments of the present disclosure;

[0144] Figure 6 A cross-sectional view showing a portion of an electronic device according to one or more embodiments of the present disclosure;

[0145] Fig. 7A A cross-sectional view showing a light emitting element according to one or more embodiments of the present disclosure;

[0146] Figure 7B is a cross-sectional view showing a light receiving element according to one or more embodiments of the present disclosure;

[0147] Fig. 8A A cross-sectional view showing a light emitting element according to one or more embodiments of the present disclosure;

[0148] Figure 8B is a cross-sectional view showing a light receiving element according to one or more embodiments of the present disclosure; and

[0149] Fig. 9 is a cross-sectional view showing a portion of a display module according to one or more embodiments of the present disclosure. DETAILED DESCRIPTION

[0150] The present disclosure can be modified in many alternative forms, and therefore one or more embodiments will be illustrated in the drawings and described in more detail. However, it should be understood that it is not intended to limit the present disclosure to the particular form disclosed, but is intended to cover all modifications, equivalents and alternatives that fall within the spirit and scope of the present disclosure.

[0151] When describing the accompanying drawings, the same reference numerals are used for the same elements. In the accompanying drawings, for the sake of clarity, the size of the elements may be enlarged. It should be understood that although the terms "first" and / or "second" etc. can be used to describe one or more appropriate 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. For example, without departing from the teaching of the present disclosure, the first element may be referred to as the second element, and similarly, the second element may be referred to as the first element. As used in this article, unless the context clearly indicates otherwise, the singular form "a (a)", "an (an)", "one (one)" and "the (the)" are intended to also include plural forms. In addition, when describing the embodiments of the present disclosure, the use of "may" refers to "one or more embodiments of the present disclosure".

[0152] In the present disclosure, it should be understood that the terms “comprise(s) / include(s) / have(has)” and “comprising / including / having” are intended to indicate the presence of the recited features, integers, steps, operations, elements, components and / or combinations thereof (e.g., any appropriate combination) in the present disclosure, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof (e.g., any appropriate combination).

[0153] In the present disclosure, it should be understood that if (for example, when) an element (such as a layer, film, region, or substrate) is referred to as being “on” or “over” another element (such as a layer, film, region, or substrate), it can be “directly on” the other element (such as a layer, film, region, or substrate) or intervening elements may also be present. However, “directly on” may mean that there are no additional layers, films, regions, substrates, etc. between the layer, film, region, or substrate and the other elements. In contrast, it should be understood that if (for example, when) an element (such as a layer, film, region, or substrate) is referred to as being “under” or “below” another element (such as a layer, film, region, or substrate), it can be “directly under” the other element (such as a layer, film, region, or substrate) or intervening elements may also be present. In addition, in the present disclosure, it should be understood that if (for example, when) an element (such as a layer, film, region, or substrate) is referred to as being "on" another element (such as a layer, film, region, or substrate), it can be "above" or "below" the other element (such as a layer, film, region, or substrate).

[0154] In the present disclosure, the term "substituted or unsubstituted" may indicate a group substituted or unsubstituted by at least one substituent selected from the group consisting of deuterium, halogen, cyano, nitro, amine, amino, silyl, germanium, oxy, sulfenyl, sulfonyl, carbonyl, boron, phosphine oxide, phosphine sulfide, alkyl, cycloalkyl, alkenyl, alkynyl, hydrocarbon ring, aryl and heterocyclic groups. In one or more embodiments, each of the substituents present may be substituted or unsubstituted. For example, biphenyl may be interpreted as an aryl or a phenyl substituted with a phenyl.

[0155] As used in this article, the term "bonded to an adjacent group to form (or provide) a ring" may indicate that a group is bonded to an adjacent group to form (or provide) a substituted or unsubstituted hydrocarbon ring or a substituted or unsubstituted heterocycle. The hydrocarbon ring may include an aliphatic hydrocarbon ring and / or an aromatic hydrocarbon ring. The heterocycle may include an aliphatic heterocycle and / or an aromatic heterocycle. The hydrocarbon ring and the heterocycle may each be a monocyclic or polycyclic ring. In one or more embodiments, the ring formed by the adjacent groups bonded to each other may be connected to another ring to form (or provide) a spiro structure.

[0156] As used herein, the term "adjacent group" may refer to a substituent that replaces an atom directly connected to the atom substituted by the corresponding substituent, another substituent that replaces the atom substituted by the corresponding substituent, or a substituent that is located closest to the corresponding substituent in space. For example, the two methyl groups in 1,2-dimethylbenzene may be interpreted as "adjacent groups" to each other, and the two ethyl groups in 1,1-diethylcyclopentane may be interpreted as "adjacent groups" to each other. In one or more embodiments, the two methyl groups in 4,5-dimethylphenanthrene may be interpreted as "adjacent groups" to each other.

[0157] As used herein, examples of halogen may include fluorine, chlorine, bromine, and iodine.

[0158] As used herein, an alkyl group may be linear or branched. The number of carbon atoms in the alkyl group may be 1 to 50, 1 to 30, 1 to 20, 1 to 10, or 1 to 6. Examples of the alkyl group may include methyl, ethyl, n-propyl, isopropyl, n-butyl, sec-butyl, tert-butyl, isobutyl, 2-ethylbutyl, 3,3-dimethylbutyl, n-pentyl, isopentyl, neopentyl, tert-pentyl, 1-methylpentyl, 3-methylpentyl, 2-ethylpentyl, 4-methyl-2-pentyl, n-hexyl, 1-methylhexyl, 2-ethylhexyl, 2-butylhexyl, n-heptyl, 1-methylheptyl, 2,2-dimethylheptyl, 2-ethylheptyl, 2-butylheptyl, n-octyl, tert-octyl, 2-ethyloctyl, 2-butyloctyl, 2-hexyloctyl, 3,7-dimethyloctyl, n-nonyl, n-decyl, adamantyl, 2-ethyldecyl, 2-butyldecyl, 2-hexyldecyl, 2-octyldecyl, n-undecyl, n-Dodecyl, 2-ethyldodecyl, 2-butyldodecyl, 2-hexyldodecyl, 2-octyldodecyl, n-tridecyl, n-tetradecyl, n-pentadecyl, n-hexadecyl, 2-ethylhexadecyl, 2-butylhexadecyl, 2-hexylhexadecyl, 2-octylhexadecyl, n-heptadecyl, n-octadecyl, n-nonadecyl, n-eicosyl, 2-ethyleicosyl, 2-butyleicosyl, 2-hexyleicosyl, 2-octyleicosyl, n-heonicosyl, n-docosyl, n-tricosyl, n-tetracosyl, n-pentacosyl, n-hexacosyl, n-heptacosyl, n-octacosyl, n-nonacosyl and / or n-triacontyl, etc., but embodiments of the present disclosure are not limited thereto.

[0159] As used herein, cycloalkyl may refer to a cyclic alkyl. The number of carbon atoms in the cycloalkyl may be 3 to 50, 3 to 30, 3 to 20, or 3 to 10. Examples of cycloalkyl include cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, 4-methylcyclohexyl, 4-tert-butylcyclohexyl, cycloheptyl, cyclooctyl, cyclononyl, cyclodecyl, norbornyl, 1-adamantyl, 2-adamantyl, isobornyl and / or bicycloheptyl, but embodiments of the present disclosure are not limited thereto.

[0160] As used herein, alkenyl refers to a hydrocarbon group including at least one carbon-carbon double bond in the middle or at the end of an alkyl group having 2 or more carbon atoms. The alkenyl group may be linear or branched. The number of carbon atoms in the alkenyl group is not particularly limited, for example, may be 2 to 30, 2 to 20 or 2 to 10. Examples of alkenyl groups include vinyl, 1-butenyl, 1-pentenyl, 1,3-butadienyl, styryl and / or styrylvinyl, etc., but embodiments of the present disclosure are not limited thereto.

[0161] As used herein, alkynyl refers to a hydrocarbon group including at least one carbon-carbon triple bond in the middle or at the end of an alkyl group having 2 or more carbon atoms. The alkynyl group may be linear or branched. The number of carbon atoms in the alkynyl group is not particularly limited, for example, may be 2 to 30, 2 to 20 or 2 to 10. Examples of alkynyl groups may include ethynyl and / or propynyl, etc., but embodiments of the present disclosure are not limited thereto.

[0162] As used herein, the hydrocarbon ring group refers to any functional group or substituent derived from an aliphatic hydrocarbon ring. The hydrocarbon ring group may be a saturated hydrocarbon ring group having 5 to 20 ring-forming carbon atoms.

[0163] As used herein, aryl refers to any functional group or substituent derived from an aromatic hydrocarbon ring. The aryl may be a monocyclic aryl or a polycyclic aryl. The number of ring carbon atoms in the aryl may be 6 to 30, 6 to 20, or 6 to 15. Examples of aryl may include phenyl, naphthyl, fluorenyl, anthracenyl, phenanthrenyl, biphenyl, terphenyl, quaterphenyl, pentaphenyl, hexaphenyl, triphenylene, pyrenyl, benzofluoranthenyl and / or 1,2-triphenylenyl, but embodiments of the present disclosure are not limited thereto.

[0164] As used herein, the fluorenyl group may be substituted, and two substituents may be bonded to each other to form (or provide) a spiro structure. Examples of substituted fluorenyl groups are as follows. However, embodiments of the present disclosure are not limited thereto.

[0165]

[0166] As used herein, heterocyclic refers to any functional group or substituent derived from a ring containing at least one of B, O, N, P, Si, S, Se and Te as a heteroatom. The heterocyclic may include an aliphatic heterocyclic and / or aromatic heterocyclic. The aromatic heterocyclic may be a heteroaryl. The aliphatic heterocyclic and aromatic heterocyclic may each be monocyclic or polycyclic.

[0167] As used herein, the heterocyclic group may contain at least one of B, O, N, P, Si, S, Se and Te as a heteroatom. When the heterocyclic group contains two or more heteroatoms, the two or more heteroatoms may be the same or different from each other. The heterocyclic group may be a monocyclic heterocyclic group or a polycyclic heterocyclic group, and may include a heteroaryl group. The number of ring carbon atoms in the heterocyclic group may be 2 to 30, 2 to 20 or 2 to 10.

[0168] As used herein, the aliphatic heterocyclic group may contain at least one of B, O, N, P, Si, S, Se and Te as a heteroatom. The number of ring-forming carbon atoms in the aliphatic heterocyclic group may be 2 to 30, 2 to 20 or 2 to 10. Examples of the aliphatic heterocyclic group may include an oxirane group, a thiirane group, a pyrrolidinyl group, a piperidinyl group, a tetrahydrofuranyl group, a tetrahydrothienyl group, a thianyl group, a tetrahydropyranyl group and / or a 1,4-dioxanyl group, but are not limited thereto.

[0169] As used herein, heteroaryl may contain at least one of B, O, N, P, Si, S, Se and Te as a heteroatom. When heteroaryl contains two or more heteroatoms, the two or more heteroatoms may be the same or different from each other. Heteroaryl may be a monocyclic heteroaryl or a polycyclic heteroaryl. The number of ring carbon atoms in the heteroaryl may be 2 to 30, 2 to 20 or 2 to 10. Examples of heteroaryl may include thienyl, furyl, pyrrolyl, imidazolyl, pyridyl, bipyridyl, pyrimidyl, triazine, triazolyl, acridinyl, pyridazinyl, pyrazinyl, quinolyl, quinazolinyl, quinoxalinyl, phenoxazinyl, phthalazinyl, pyridopyrimidinyl, pyridopyrazinyl, pyrazinopyrazinyl, isoquinolyl, indolyl, carbazolyl, N-arylcarbazolyl, N-heteroarylcarbazolyl , N-alkylcarbazolyl, benzoxazolyl, benzimidazolyl, benzothiazolyl, benzocarbazolyl, benzothiophenyl, dibenzothiophenyl, thienothiphenyl, benzofuranyl, phenanthroline, thiazolyl, isoxazolyl, oxazolyl, oxadiazolyl, thiadiazolyl, phenothiazinyl, dibenzothiole, dibenzofuranyl and / or indolocarbazolyl, etc., but the embodiments of the present disclosure are not limited thereto.

[0170] As used herein, the above description of aryl can be applied to arylene, except that arylene is a divalent group. The above description of heteroaryl can be applied to heteroarylene, except that heteroarylene is a divalent group.

[0171] As used herein, the number of carbon atoms in the carbonyl group is not particularly limited, and may be, for example, 1 to 40, 1 to 30, or 1 to 20. For example, the carbonyl group may have the following structure, but embodiments of the present disclosure are not limited thereto.

[0172]

[0173] As used herein, the number of carbon atoms in the sulfinyl group and / or the sulfonyl group is not particularly limited, and for example, may be 1 to 30. The sulfinyl group may include an alkylsulfinyl group and / or an arylsulfinyl group. The sulfonyl group may include an alkylsulfonyl group and / or an arylsulfonyl group.

[0174] As used herein, the thio group may include an alkylthio group and / or an arylthio group. The thio group may indicate a group in which a sulfur atom is bonded to an alkyl or aryl group as defined above. The alkyl group in the alkylthio group may be linear, branched or cyclic. The number of carbon atoms in the alkylthio group is not specifically limited, but may be, for example, 1 to 20 or 1 to 10. The number of carbon atoms in the arylthio group is not specifically limited, but may be, for example, 6 to 30, 6 to 20 or 6 to 15. Examples of thio groups may include methylthio, ethylthio, propylthio, pentylthio, hexylthio, octylthio, dodecylthio, cyclopentylthio, cyclohexylthio, phenylthio and / or naphthylthio, etc., but embodiments of the present disclosure are not limited thereto.

[0175] As used herein, an oxy group may indicate a group in which an oxygen atom is bonded to an alkyl or aryl group as defined above. The oxy group may include an alkoxy group and / or an aryloxy group. The alkoxy group may be linear, branched or cyclic. The number of carbon atoms in the alkoxy group is not particularly limited, but may be, for example, 1 to 20 or 1 to 10. The number of carbon atoms in the aryloxy group is not specifically limited, but may be, for example, 6 to 30, 6 to 20 or 6 to 15. Examples of oxy groups include methoxy, ethoxy, n-propoxy, isopropoxy, butoxy, pentyloxy, hexyloxy, octyloxy, nonyloxy, decyloxy and / or benzyloxy, etc., but embodiments of the present disclosure are not limited thereto.

[0176] As used herein, a boryl group may refer to a group in which a boron atom is bonded to an alkyl or aryl group as defined above. A boryl group may include an alkyl boryl group and / or an aryl boryl group. The alkyl group in the alkyl boryl group may be linear, branched or cyclic. The number of carbon atoms in the alkyl boryl group is not specifically limited, but may be, for example, 1 to 20 or 1 to 10. The number of carbon atoms in the aryl boryl group is not specifically limited, but may be, for example, 6 to 30, 6 to 20 or 6 to 15. Examples of boryl groups may include dimethyl boryl, diethyl boryl, tert-butyl methyl boryl, diphenyl boryl and / or phenyl boryl, etc., but embodiments of the present disclosure are not limited thereto.

[0177] As used herein, the amine group may include an alkylamine group and / or an arylamine group. The alkyl group in the alkylamine group may be linear, branched or cyclic. The number of carbon atoms in the alkylamine group is not specifically limited, but may be, for example, 1 to 20 or 1 to 10. The number of carbon atoms in the arylamine group is not specifically limited, but may be, for example, 6 to 30, 6 to 20 or 6 to 15. Examples of amine groups may include methylamine, dimethylamine, phenylamine, diphenylamine, naphthylamine, 9-methyl-anthrylamine and / or triphenylamine, etc., but embodiments of the present disclosure are not limited thereto.

[0178] As used herein, silyl includes alkylsilyl and arylsilyl. The alkyl in the alkylsilyl may be linear, branched or cyclic. The number of carbon atoms in the alkylsilyl is not specifically limited, but may be, for example, 1 to 20 or 1 to 10. The number of carbon atoms in the arylsilyl is not specifically limited, but may be, for example, 6 to 30, 6 to 20 or 6 to 15. Examples of silyl may include trimethylsilyl, triethylsilyl, tert-butyldimethylsilyl, vinyldimethylsilyl, propyldimethylsilyl, triphenylsilyl, diphenylsilyl and / or phenylsilyl, etc., but embodiments of the present disclosure are not limited thereto.

[0179] As used herein, a sulfinyl group may mean an alkyl group or an aryl group defined above in combination with -S(=O)-. The number of carbon atoms of the sulfinyl group is not particularly limited, but may be 1 to 30, 1 to 20, or 1 to 10. The sulfinyl group may include an alkylsulfinyl group and an arylsulfinyl group. For example, the sulfinyl group may have the following structure, but is not limited thereto.

[0180]

[0181] As used herein, sulfonyl may refer to a group having the same 2 - combined with the above-defined alkyl or aryl groups. The number of carbon atoms of the sulfonyl group is not particularly limited, but may be 1 to 30, 1 to 20, or 1 to 10. The sulfonyl group may include an alkylsulfonyl group and an arylsulfonyl group. For example, the sulfonyl group may have the following structure, but is not limited thereto.

[0182]

[0183] As used herein, the phosphine oxide group may mean an alkyl group or an aryl group defined above in combination with -P(=O)-. The number of carbon atoms of the phosphine oxide group is not particularly limited, but may be 1 to 30, 1 to 20, or 1 to 10. The phosphine oxide group may include an alkyl phosphine oxide group and an aryl phosphine oxide group. For example, the phosphine oxide group may have the following structure, but is not limited thereto.

[0184]

[0185] As used herein, the phosphinosulfide group may mean an alkyl or aryl group defined above in combination with -P(=S)-. The number of carbon atoms of the phosphinosulfide group is not particularly limited, but may be 1 to 30, 1 to 20, or 1 to 10. The phosphinosulfide group may include an alkylphosphinosulfide group and an arylphosphinosulfide group. For example, the phosphinosulfide group may have the following structure, but is not limited thereto.

[0186]

[0187] As used herein, the above examples of the alkyl group may also be applied to an alkoxy group, an alkylthio group, an alkylsulfonyl group, an alkylsulfinyl group, an alkylaryl group, an alkylamino group, an alkylboryl group, an alkylsilyl group, an alkylphosphine oxide group, an alkylphosphine sulfide group, and an alkylamine group.

[0188] As used herein, the above examples of the aryl group may also be applied to an aryloxy group, an arylthio group, an arylsulfonyl group, an arylsulfinyl group, an arylamino group, an arylboryl group, an arylsilyl group, an arylphosphine oxide group, an arylphosphine sulfide group, and an arylamine group.

[0189] As used herein, a direct connection may refer to a single bond.

[0190] In this disclosure, and "-*" each refer to the location to be linked.

[0191] Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings.

[0192] Figure 1 is a perspective view showing an electronic device according to one or more embodiments of the present disclosure. Figure 2 An exploded perspective view showing an electronic device according to one or more embodiments of the present disclosure. Figure 3 To schematically illustrate the Figure 1 A cross-sectional view of the portion taken along line II'.

[0193] Figures 1 to 3 The electronic device ED of one or more embodiments shown in the figure may be a device activated according to an electrical signal. For example, the electronic device ED may be a mobile phone, a tablet computer, a car navigation system, a game console, or a wearable device, but the embodiments of the present disclosure are not limited thereto. Figure 1 In the drawings, a mobile phone is shown by way of example as the electronic device ED.

[0194] The electronic device ED may display an image IM through the active area ED-AA. The active area ED-AA may include a plane defined by the first direction axis DR1 and the second direction axis DR2. The active area ED-AA may further include a curved surface bent from at least one side of the plane defined by the first direction axis DR1 and the second direction axis DR2. For example, in one or more embodiments, the active area ED-AA may include a plane alone, and the active area ED-AA may further include curved surfaces, each curved surface being bent from at least two sides of the plane (for example, four curved surfaces, each curved surface being bent from four sides of the plane).

[0195] In one or more embodiments, Figure 1The following drawings illustrate first to fourth direction axes DR1, DR2, DR3, and DR4, and the directions indicated by the first to fourth direction axes DR1, DR2, DR3, and DR4 as described herein are relative concepts and may be changed to other directions accordingly. In one or more embodiments, the directions indicated by the first to fourth direction axes DR1, DR2, DR3, and DR4 may be described as first to fourth directions, and the same reference numerals may be used.

[0196] Herein, the first direction axis DR1 and the second direction axis DR2 may be orthogonal to each other (e.g., perpendicular), and the third direction axis DR3 may be a normal direction relative to a plane defined by the first direction axis DR1 and the second direction axis DR2. The fourth direction axis DR4 may be a direction between the first direction axis DR1 and the second direction axis DR2.

[0197] The thickness direction of the electronic device ED may be parallel to the third directional axis DR3, which is a normal direction relative to a plane defined by the first directional axis DR1 and the second directional axis DR2. As described herein, the front surface (or upper surface) and the rear surface (or lower surface) of the member constituting the electronic device ED may be defined relative to the third directional axis DR3.

[0198] The images IM provided in the electronic device ED of one or more embodiments may include still images and dynamic images. Figure 1 , a viewing window and an icon are shown as examples of the image IM. The surface on which the image IM is displayed may correspond to the front surface of the electronic device ED, and may also correspond to the front surface of the window member WM.

[0199] In one or more embodiments, the electronic device ED may detect user input applied from the outside. For example, the user input may include one or more appropriate types (kinds) of external input (such as a user's body part, light, heat, pen and / or pressure). The electronic device ED of one or more embodiments may detect user input through the active area ED-AA and respond to the detected input signal. In one or more embodiments, depending on the design of the electronic device ED provided, user input applied to the side surface and / or rear surface of the electronic device ED may also be detected, and the embodiments of the present disclosure are not limited thereto.

[0200] For example, the electronic device ED according to one or more embodiments may detect biometric information such as a user's fingerprint FG applied from the outside. A fingerprint recognition area may be provided in the active area ED-AA of the electronic device ED. The fingerprint recognition area may be provided in the entire area of ​​the active area ED-AA or may be provided in some areas of the active area ED-AA. In one or more embodiments, the fingerprint recognition area may be an external input recognition area that detects not only the user's biometric information but also an input provided from the outside.

[0201] See also Figure 2 and Figure 3 The electronic device ED of one or more embodiments may include a display module DM, a window member WM, and a housing HAU. In one or more embodiments, the window member WM and the housing HAU may be combined together to form (or provide) the exterior of the electronic device ED.

[0202] The display module DM according to one or more embodiments may be divided into an active area AA and a peripheral area NAA. The active area AA may be an area activated according to an electrical signal. As described above, the active area AA may be a portion that displays an image and / or detects an external input.

[0203] The peripheral area NAA may be an area adjacent to at least one side of the active area AA. The peripheral area NAA may be arranged around the active area AA (e.g., arranged to surround the active area AA). However, the embodiments of the present disclosure are not limited thereto, and for example, in one or more embodiments, a portion of the peripheral area NAA may not be provided. A driving circuit and / or a driving line for driving the active area AA may be arranged in the peripheral area NAA.

[0204] The electronic device ED according to one or more embodiments may include light emitting elements ED-R, ED-G, and ED-B ( Figure 5 ) and the light receiving element OPD (see Figure 5 ). For example, the electronic device ED according to one or more embodiments may be configured by light emitting elements ED-R, ED-G, and ED-B and a light receiving element OPD (see Figure 5 ) to display an image, and through the light receiving element OPD (see Figure 5 ) operation to detect external input.

[0205] The display module DM according to one or more embodiments may include a display panel DP and an input sensing layer ISL disposed on the display panel DP. In one or more embodiments, the display module DM may include an anti-reflection member RP. In one or more embodiments, the anti-reflection member RP may be disposed on the input sensing layer ISL. In one or more embodiments, if (for example, when) the input sensing layer ISL is not provided, the anti-reflection member RP may be disposed on the display panel DP.

[0206] The display panel DP may include a base layer BS and a display element layer EDL disposed on the base layer BS. In one or more embodiments, the display panel DP may include a base layer BS, a circuit layer DP-CL disposed on the base layer BS, a display element layer EDL disposed on the circuit layer DP-CL, and an encapsulation layer TFL disposed on the display element layer EDL. The encapsulation layer TFL may cover the display element layer EDL.

[0207] In one or more embodiments, the electronic device ED may further include a window member WM arranged on the display module DM. The window member WM may include a window WP and an adhesive layer AP, and the adhesive layer AP may be arranged between the display module DM and the window WP. The adhesive layer AP may be an optically transparent adhesive film (OCA) or an optically transparent adhesive resin layer (OCR). In one or more embodiments, the adhesive layer AP may not be provided.

[0208] The window WP may cover the entire outer side of the display module DM. The window WP may have a shape corresponding to the shape of the display module DM. In the electronic device ED of one or more embodiments, the window WP may include an optically transparent insulating material. The window WP may be a glass substrate or a polymer substrate. For example, in one or more embodiments, the window WP may be a tempered glass substrate that has been strengthened. The window WP may correspond to the uppermost layer of the electronic device ED.

[0209] In one or more embodiments, in the electronic device ED, the window member WM may be divided into a transmissive portion TA and a bezel portion BZA. The transmissive portion TA may correspond to the active area AA of the display module DM, and the bezel portion BZA may correspond to the peripheral area NAA of the display module DM.

[0210] The front surface of the window member WM including the transmissive portion TA and the bezel portion BZA corresponds to the front surface of the electronic device ED. A user may observe an image corresponding to the front surface of the electronic device ED provided through the transmissive portion TA.

[0211] The bezel portion BZA may define the shape of the transmissive portion TA. The bezel portion BZA may be adjacent to the transmissive portion TA and may be around the transmissive portion TA (e.g., surround the transmissive portion TA). However, the embodiments of the present disclosure are not limited to the illustrated embodiments, and for example, in one or more embodiments, the bezel portion BZA may be adjacent to only one side of the transmissive portion TA, or a portion of the bezel portion BZA may not be provided.

[0212] In the electronic device ED of one or more embodiments, the portion of the electronic device ED observed through the bezel portion BZA may have a lower transmittance than the portion of the electronic device ED observed through the transmissive portion TA. In one or more embodiments, in the electronic device ED, the bezel portion BZA may be a portion that is regarded as having a set or predetermined color.

[0213] In the electronic device ED of one or more embodiments, the anti-reflection member RP may include a color filter layer CFL (see Figure 5 For example, the anti-reflection member RP may reduce the reflectivity of external light incident from the outside, or absorb and block or reduce a portion of (external) light incident from the outside.

[0214] The input sensing layer ISL included in the electronic device ED of one or more embodiments may be arranged on the display panel DP. The input sensing layer ISL may detect an external input applied from the outside. The external input may be a user input. The user input may include one or more appropriate types (kinds) of external input (such as a user's body part, light, heat, pen, and / or pressure).

[0215] Figure 4 FIG. 1 is a plan view showing a portion of a display module according to one or more embodiments of the present disclosure. Figure 5 is a cross-sectional view showing a portion of a display module according to one or more embodiments of the present disclosure. Figure 4 To show Figure 2 The floor plan of area DD', and Figure 5 To show along Figure 4 A cross-sectional view of a portion taken along line II-II'.

[0216] The display module DM according to one or more embodiments may include a display module DM disposed in the active area AA (see Figure 2) and a plurality of light-emitting areas PXA-R, PXA-G and PXA-B and a light-receiving area IPA. In one or more embodiments, the display module DM may include a red light-emitting area PXA-R to emit red light, a green light-emitting area PXA-G to emit green light, and a blue light-emitting area PXA-B to emit blue light. In one or more embodiments, the display module DM may include a light-receiving area IPA that receives and senses incident light reflected by an external object. The non-light-emitting area NPXA may be arranged between the light-emitting areas PXA-R, PXA-G and PXA-B and between the light-emitting areas PXA-R, PXA-G and PXA-B and the light-receiving area IPA. Each of the light-emitting areas PXA-R, PXA-G and PXA-B may be distinguished by the non-light-emitting area NPXA, and the light-emitting areas PXA-R, PXA-G and PXA-B and the light-receiving area IPA may be distinguished by the non-light-emitting area NPXA. The non-light emitting area NPXA may be around (eg, surround) each of the light emitting areas PXA-R, PXA-G, and PXA-B and the light receiving area IPA.

[0217] In one or more embodiments, the light emitting regions emitting light of different wavelength ranges among the plurality of light emitting regions PXA-R, PXA-G, and PXA-B may have different surface areas from each other. In this case, the surface area may refer to an area if (e.g., when) observed on a plane (e.g., a plan view) defined by the first direction axis DR1 and the second direction axis DR2.

[0218] However, the embodiments of the present disclosure are not limited thereto, and the light emitting regions PXA-R, PXA-G, and PXA-B may have substantially the same surface area, or may be substantially the same as the surface area. Figure 4 In one or more embodiments, the light emitting regions PXA-R, PXA-G, and PXA-B may emit light of different colors in addition to red, green, and blue light, or have the same Figure 4 The indicated plane shape is different from the plane shape.

[0219] In one or more embodiments, if (for example, when) observed on a plane (for example, in a plan view of the light receiving area IPA), the light receiving area IPA may have a surface area that is smaller than the surface area of ​​each of the red light emitting area PXA-R, the green light emitting area PXA-G, and the blue light emitting area PXA-B. However, embodiments of the present disclosure are not limited thereto, and for example, the light receiving area IPA may have a surface area that is substantially equal to or greater than the surface area of ​​at least any one of the red light emitting area PXA-R, the green light emitting area PXA-G, and the blue light emitting area PXA-B.

[0220] See also Figure 4, the red light emitting areas PXA-R may be arranged to be spaced and / or separated (e.g., spaced apart or separated) along the first direction axis DR1 to form (or provide) a first group PXG1. The green light emitting areas PXA-G and the light receiving areas IPA may be alternately arranged along the first direction axis DR1 to form (or provide) a second group PXG2. In addition, the blue light emitting areas PXA-B may be arranged to be spaced and / or separated (e.g., spaced apart or separated) along the first direction axis DR1 to form (or provide) a third group PXG3.

[0221] The first to third groups PXG1 to PXG3 may be sequentially arranged in the direction of the second direction axis DR2. Each of the first to third groups PXG1 to PXG3 may be provided in plural. Figure 4 In one or more embodiments of the present disclosure shown in , the first group PXG1, the second group PXG2, the third group PXG3 and the second group PXG2 constitute a repeating unit along the second direction axis DR2, and these repeating units are repeated and arranged on the second direction axis DR2.

[0222] In one or more embodiments, a green light emitting region PXA-G may be arranged to be spaced and / or separated (e.g., spaced apart or separated) from a red light emitting region PXA-R or spaced and / or separated (e.g., spaced apart or separated) from a blue light emitting region PXA-B in the direction of the fourth direction axis DR4.

[0223] In one or more embodiments, the light receiving area IPA is spaced and / or separated (e.g., spaced apart or separated) from each of the light emitting areas PXA-R, PXA-G, and PXA-B, and is arranged to be spaced and / or separated (e.g., spaced apart or separated) between the red light emitting area PXA-R and the blue light emitting area PXA-B on the second direction axis DR2. The light receiving area IPA and the green light emitting area PXA-G may be alternately arranged along the first direction axis DR1.

[0224] Figure 4 The arrangement structure of the light emitting areas PXA-R, PXA-G and PXA-B shown in FIG. structure. is a trademark officially registered by Samsung Display Co., Ltd. However, the arrangement structure of the light emitting areas PXA-R, PXA-G, and PXA-B in the electronic device according to one or more embodiments is not limited to Figure 4. For example, in one or more embodiments, the light-emitting areas PXA-B, PXA-G, and PXA-R may have a stripe arrangement structure in which the red light-emitting areas PXA-R, the green light-emitting areas PXA-G, and the blue light-emitting areas PXA-B are alternately arranged in sequence. In one or more embodiments, in the stripe arrangement structure, the light-receiving area IPA may form (or provide) the same row or the same column with the green light-emitting area PXA-G to form (or provide) a single stripe arrangement. However, in one or more embodiments, the arrangement shape and arrangement ratio of the light-receiving area IPA and the light-emitting areas PXA-R, PXA-G, and PXA-B may be different from the above-mentioned arrangement shape and arrangement ratio.

[0225] Figure 5 is a cross-sectional view showing a portion of a display module according to one or more embodiments of the present disclosure. Figure 5 1 is a cross-sectional view showing a portion of the light emitting areas PXA-R, PXA-G and PXA-B and the light receiving area IPA as an example. Figure 5 To illustrate an electronic device ED ( Figure 3 ) is a cross-sectional view of a portion of ).

[0226] An electronic device according to one or more embodiments may include light emitting elements ED-R, ED-G, and ED-B and a light receiving element OPD. The light emitting elements ED-R, ED-G, and ED-B may generate light according to an electrical signal. In one or more embodiments, the light receiving element OPD may receive light and convert the light into an electrical signal.

[0227] See also Figure 5 According to one or more embodiments, the display module DM may include a base layer BS, a display element layer EDL disposed on the base layer BS, an input sensing layer ISL disposed on the display element layer EDL, and an anti-reflection member RP disposed on the input sensing layer ISL. The display element layer EDL may include a pixel defining film PDL, and light emitting elements ED-R, ED-G, and ED-B and a light receiving element OPD distinguished by the pixel defining film PDL. In one or more embodiments, the anti-reflection member RP may include a color filter layer CFL and an organic planarization layer OCL.

[0228] In one or more embodiments, the light emitting elements ED-R, ED-G and ED-B may include a first light emitting electrode AE-ED, a hole transport region HTR, respective emission layers EML-R, EML-G and EML-B, an electron transport region ETR and a second light emitting electrode CE-ED. In one or more embodiments, the light receiving element OPD may include a first light receiving electrode AE-OPD, a hole transport region HTR, a light receiving layer OPL, an electron transport region ETR and a second light receiving electrode CE-OPD stacked in the order described.

[0229] In one or more embodiments, the emission layers EML-R, EML-G, and EML-B respectively included in the light-emitting elements ED-R, ED-G, and ED-B may be layers including organic light-emitting materials and / or inorganic light-emitting materials, etc., and thus spontaneously emit light. The light-emitting elements ED-R, ED-G, and ED-B may recombine holes and electrons injected from each electrode in their respective emission layers EML-R, EML-G, and EML-B.

[0230] In one or more embodiments, the light receiving layer OPL included in the light receiving element OPD may be a light receiving layer that converts incident light into an electrical signal. The light receiving element OPD may separate the provided light into electrons and holes, and may transfer the electrons and holes to each corresponding electrode of the light receiving element OPD.

[0231] In one or more embodiments, the light emitting elements ED-R, ED-G, and ED-B may be arranged to overlap with the light emitting regions PXA-R, PXA-G, and PXA-B, respectively. For example, the emission layers EML-R, EML-G, and EML-B included only in the light emitting elements ED-R, ED-G, and ED-B may be arranged to overlap only with the light emitting regions PXA-R, PXA-G, and PXA-B, respectively, and may not overlap with the light receiving region IPA.

[0232] In one or more embodiments, the light receiving element OPD may be arranged to overlap with the light receiving area IPA. For example, the light receiving layer OPL included only in the light receiving element OPD may be arranged to overlap only with the light receiving area IPA, and may not overlap with the light emitting areas PXA-R, PXA-G, and PXA-B.

[0233] Figure 6 is a cross-sectional view showing a portion of an electronic device according to one or more embodiments of the present disclosure. Figure 6 The operation modes of the light emitting element and the light receiving element are briefly shown. Figure 6In the electronic device ED according to one or more embodiments, light OT-L emitted from the light emitting element ED-G included in the display element layer EDL may be reflected from an external object (e.g., a fingerprint FG in the presented embodiment) and incident on the light receiving element OPD included in the display element layer EDL as reflected light IP-L. The reflected light IP-L incident on the light receiving element OPD may be light within the visible light range. The light receiving element OPD may receive the incident light and convert the received incident light into an electrical signal to identify an external input, thereby changing the driving state of the electronic device ED.

[0234] For example, light emitted from the light emitting element ED-G and reflected from an external object is incident on the light receiving element OPD, and the incident light is separated into holes and electrons in the light receiving layer OPL of the light receiving element OPD, and then the holes and electrons are transferred to the corresponding electrodes AE-OPD and CE-OPD. Accordingly, the light is converted into an electrical signal.

[0235] Return to see Figure 5 According to one or more embodiments, the electronic device may include a base layer BS in the display module DM. The base layer BS may be a member providing a base surface, on which a display element layer EDL is arranged. The base layer BS may be a glass substrate, a metal substrate, and / or a polymer substrate, etc. However, the embodiments of the present disclosure are not limited thereto, and for example, the base layer BS may be an inorganic layer, an organic layer, or a composite material layer.

[0236] The base layer BS may have a multilayer structure. For example, in one or more embodiments, the base layer BS may have a three-layer structure of a synthetic resin layer, an adhesive layer, and a synthetic resin layer. In one or more embodiments, the synthetic resin layer may include at least one of polyimide resins, acrylate resins, methacrylate resins, polyisoprene resins, vinyl resins, epoxy resins, urethane resins, cellulose resins, siloxane resins, polyamide resins, and perylene resins. In the present disclosure, as described herein, "~~" resins may be considered to include "~~" functional groups.

[0237] The circuit layer DP-CL is arranged on the base layer BS. The circuit layer DP-CL may include an insulating layer, a semiconductor pattern, a conductive pattern and / or a signal line, etc. The insulating layer, the semiconductor layer and the conductive layer may be formed on the base layer BS by coating or deposition, and then, the insulating layer, the semiconductor layer and the conductive layer may be selectively patterned by multiple photoetching processes. Then, the semiconductor pattern, the conductive pattern and the signal line included in the circuit layer DP-CL may be formed.

[0238] The display element layer EDL may be arranged on the circuit layer DP-CL. The display element layer EDL may include light-emitting elements ED-R, ED-G and ED-B and a light receiving element OPD. For example, the light-emitting elements ED-R, ED-G and ED-B included in the display element layer EDL may include organic light-emitting elements, quantum dot light-emitting elements, micro-LED light-emitting elements or nano-LED light-emitting elements. However, the embodiments of the present disclosure are not limited thereto, for example, the light-emitting elements ED-R, ED-G and ED-B may include one or more appropriate embodiments, as long as light is generated according to an electrical signal or the amount of light is controlled or selected.

[0239] In one or more embodiments, the light receiving element OPD may be an optical sensor that receives and recognizes light reflected by an external object. In one or more embodiments, the light receiving element OPD may be an optical sensor that recognizes light in the visible light range reflected by an external object. In one or more embodiments, the light receiving element OPD may be a biometric sensor that recognizes light reflected from a body part of the user (such as fingerprints and veins) and converts the light into an electrical signal.

[0240] The display element layer EDL includes a pixel defining film PDL in which a first opening OP-E and a second opening OP-I are defined, and the light emitting elements ED-R, ED-G, and ED-B and the light receiving element OPD can be separated and distinguished relative to the pixel defining film PDL. In the pixel defining film PDL, a first opening OP-E in which a component of the light emitting elements ED-R, ED-G, and ED-B is arranged and a second opening OP-I in which a component of the light receiving element OPD is arranged are provided,

[0241] The pixel definition film PDL may be disposed on the base layer BS. The pixel definition film PDL may be disposed on the circuit layer DP-CL and may expose a portion of the upper surface of the first electrode AE. Figure 5 In the presented embodiment, the light emitting areas PXA-R, PXA-G and PXA-B and the light receiving area IPA are defined as areas corresponding to the first light emitting electrodes AE-R, AE-G, AE-B exposed in the first opening OP-E and the area of ​​the first light receiving electrode AE-OPD exposed in the second opening OP-I.

[0242] In one or more embodiments, the pixel defining film PDL may be formed of a polymer resin. For example, the pixel defining film PDL may be formed by including a polyacrylate resin or a polyimide resin. In one or more embodiments, in addition to the polymer resin, the pixel defining film PDL may be formed by further including an inorganic material. In one or more embodiments, the pixel defining film PDL may be formed by including a light absorbing material, or may be formed by including a black pigment or a black dye. The pixel defining film PDL formed by including a black pigment or a black dye may realize a black pixel defining film. When forming (or providing) the pixel defining film PDL, carbon black may be used as a black pigment or a black dye, but the embodiments of the present disclosure are not limited thereto.

[0243] In one or more embodiments, the pixel definition layer PDL may be formed of an inorganic material. For example, in one or more embodiments, the pixel definition layer PDL may be formed of an inorganic material. x ), silicon oxide (SiO x ) and / or silicon oxynitride (SiO x N y ) etc.

[0244] The first electrode AE ​​may include a first light emitting electrode AE-ED arranged corresponding to the first opening OP-E and a first light receiving electrode AE-OPD arranged corresponding to the second opening OP-I. The first light emitting electrode AE-ED may include a first red light emitting electrode AE-R included in the red light emitting element ED-R, a first green light emitting electrode AE-G included in the green light emitting element ED-G, and a first blue light emitting electrode AE-B included in the blue light emitting element ED-B. The thickness of the first electrode AE ​​may be about to about For example, the thickness of the first electrode AE ​​may be about to about within the range.

[0245] The second electrode CE may include a second light emitting electrode CE-ED disposed on the first light emitting electrode AE-ED and a second light receiving electrode CE-OPD disposed on the first light receiving electrode AE-OPD. The second light emitting electrode CE-ED may include a second red light emitting electrode CE-R included in the red light emitting element ED-R, a second green light emitting electrode CE-G included in the green light emitting element ED-G, and a second blue light emitting electrode CE-B included in the blue light emitting element ED-B. In one or more embodiments, the second electrode CE may be provided as a common layer.

[0246] The light emitting elements ED-R, ED-G and ED-B may include first light emitting electrodes AE-R, AE-G and AE-B, second light emitting electrodes CE-R, CE-G and CE-B, and emission layers EML-R, EML-G and EML-B, respectively.

[0247] In one or more embodiments, the display element layer EDL may include a red light emitting element ED-R arranged to correspond to the red light emitting area PXA-R and emit red light, a green light emitting element ED-G arranged to correspond to the green light emitting area PXA-G and emit green light, and a blue light emitting element ED-B arranged to correspond to the blue light emitting area PXA-B and emit blue light. The red light emitting element ED-R may include a first red light emitting electrode AE-R and a second red light emitting electrode CE-R facing each other, and a red emission layer EML-R arranged between the first red light emitting electrode AE-R and the second red light emitting electrode CE-R. The green light emitting element ED-G may include a first green light emitting electrode AE-G and a second green light emitting electrode CE-G facing each other, and a green emission layer EML-G arranged between the first green light emitting electrode AE-G and the second green light emitting electrode CE-G, and the blue light emitting element ED-B may include a first blue light emitting electrode AE-B and a second blue light emitting electrode CE-B facing each other, and a blue emission layer EML-B arranged between the first blue light emitting electrode AE-B and the second blue light emitting electrode CE-B.

[0248] The light receiving element OPD may include a first light receiving electrode AE-OPD, a second light receiving electrode CE-OPD and a light receiving layer OPL. The first light receiving electrode AE-OPD may be arranged on the base layer BS and may be exposed through the second opening OP-I. In this document, the first electrode AE ​​constituting the light receiving element OPD may be referred to as the first light receiving electrode AE-OPD. In this document, the second electrode CE constituting the light receiving element OPD may be referred to as the second light receiving electrode CE-OPD.

[0249] Fig. 7A and Figure 7B Each shows a cross section of a light emitting element and a light receiving element as an example, respectively. Fig. 7A is a cross-sectional view showing a light emitting element according to one or more embodiments, and Figure 7B is a cross-sectional view showing a light receiving element according to one or more embodiments.

[0250] Fig. 7A The light emitting element ED-D according to one or more embodiments is shown in FIG. Figure 5 Each of the light-emitting elements ED-R, ED-G and ED-B. Figure 5Each of the light emitting elements ED-R, ED-G and ED-B shown in FIG. 1 is different from the light emitting elements ED-R, ED-G and ED-B in terms of the configuration of the emission layer EML. Fig. 7A The configuration of the light emitting element ED-D shown in FIG.

[0251] See also Fig. 7A According to one or more embodiments, the light-emitting element ED-D may include a first light-emitting electrode AE-ED, a hole transport region HTR, an emission layer EML, an electron transport region ETR, and a second light-emitting electrode CE-ED stacked in the order described. In one or more embodiments, the hole transport region HTR may include a hole injection layer HIL and a hole transport layer HTL. The thickness of the hole transport region HTR may be about 1000 Å. to about For example, the thickness of the hole transport region HTR may be in the range of about to about The thickness of the hole injection layer HIL can be in the range of about to about The thickness of the hole transport layer HTL may be in the range of about to about The electron transport region ETR may include an electron injection layer EIL and an electron transport layer ETL. The thickness of the electron transport region ETR may be, for example, about to about The thickness of the electron transport layer ETL can be about to about For example, the thickness of the electron transport layer ETL may be about to about If the thickness of the electron transport layer ETL satisfies any one of the above ranges, satisfactory electron transport characteristics can be obtained without significantly increasing the driving voltage. When the electron transport region ETR includes the electron injection layer EIL, the thickness of the electron injection layer EIC can be about to about For example, the thickness of the electron injection layer EIL may be about to about If the thickness of the electron injection layer EIL satisfies any one of the above ranges, satisfactory electron injection characteristics can be obtained without significantly increasing the driving voltage.

[0252] See also Figure 7B, the light receiving element OPD according to one or more embodiments may include a first light receiving electrode AE-OPD, a hole transport region HTR, a light receiving layer OPL, an electron transport region ETR, and a second light receiving electrode CE-OPD stacked in the order described. In one or more embodiments, the hole transport region HTR may include a hole injection layer HIL and a hole transport layer HTL. The electron transport region ETR may include an electron injection layer EIL and an electron transport layer ETL. The light receiving layer OPL may generate an electrical signal corresponding to the incident light. The amount of charge generated in the light receiving layer OPL may depend on the amount and intensity of light incident on the light receiving element OPD. The charge generated in the light receiving layer OPL may change the electric field between the first light receiving electrode AE-OPD and the second light receiving electrode CE-OPD. The light receiving layer OPL may be arranged between the hole transport region HTR and the electron transport region ETR, and may include a light absorption layer LAL and a photoelectric conversion layer LCL. The photoelectric conversion layer LCL may be arranged on the light absorption layer LAL. The interface may be defined between the light absorption layer LAL and the photoelectric conversion layer LCL. The light absorbing layer LAL receives external light to form (or provide) excitons, and the excitons can be separated at the interface between the light absorbing layer LAL and the photoelectric conversion layer LCL. In this case, electrons can move to the second light receiving electrode CE-OPD through the photoelectric conversion layer LCL, and holes can move to the first light receiving electrode AE-OPD through the light absorbing layer LAL. The light receiving element OPD according to one or more embodiments of the present disclosure can obtain the user's fingerprint information through the change of the electric field between the first light receiving electrode AE-OPD and the second light receiving electrode CE-OPD. In one or more embodiments, Figure 5 , Figure 6 , Figure 7B , Figure 8B and Fig. 9 Unlike the light receiving layer OPL shown in the figure, the light receiving layer OPL may be provided as a single layer formed of a plurality of different materials. In one or more embodiments, the light receiving layer OPL provided as a single layer may include a conjugated polymer. The light receiving layer OPL may include a thiophene-based conjugated polymer, a benzodithiophene-based conjugated polymer, a thienopyrrole-4,6-dione (TPD)-based conjugated polymer, a diketo-pyrrole-pyrrole (DPP)-based conjugated polymer and / or a benzothiadiazole (BT)-based conjugated polymer, etc. However, the embodiments of the present disclosure are not limited thereto.

[0253] exist Fig. 7A and Figure 7BIn the light-emitting element ED-D and the light-receiving element OPD shown in the figure, the first light-emitting electrode AE-ED and the first light-receiving electrode AE-OPD may each be formed of a metal material, a metal alloy or a conductive compound. The first electrode AE ​​may be an anode or a cathode. However, the embodiments of the present disclosure are not limited thereto. In one or more embodiments, the first light-emitting electrode AE-ED may be a pixel electrode, and the first light-receiving electrode AE-OPD may be a sensing electrode. The first light-emitting electrode AE-ED and the first light-receiving electrode AE-OPD may each independently be a transmissive electrode, a transflective electrode or a reflective electrode. When each of the first light-emitting electrode AE-ED and the first light-receiving electrode AE-OPD is a transmissive electrode, the first light-emitting electrode AE-ED and the first light-receiving electrode AE-OPD may each include a transparent metal oxide (such as indium tin oxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO) and / or indium tin zinc oxide (ITZO)). When each of the first light emitting electrode AE-ED and the first light receiving electrode AE-OPD is a transflective electrode or a reflective electrode, the first light emitting electrode AE-ED and the first light receiving electrode AE-OPD may each independently include at least one of silver (Ag), magnesium (Mg), copper (Cu), aluminum (Al), platinum (Pt), palladium (Pd), gold (Au), nickel (Ni), neodymium (Nd), iridium (Ir), chromium (Cr), lithium (Li), calcium (Ca), LiF, molybdenum (Mo), titanium (Ti), ytterbium (Yb) and tungsten (W), compounds thereof and / or mixtures thereof (e.g., any appropriate mixture) (e.g., a mixture of Ag and Mg), or a material having a multilayer structure such as LiF / Ca (a stacked structure of LiF and Ca) or LiF / Al (a stacked structure of LiF and Al). In one or more embodiments, the first light emitting electrode AE-ED and the first light receiving electrode AE-OPD may have a multilayer structure including a reflective film or a transflective film formed of one or more of the above materials, and a transparent conductive film formed of indium tin oxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO) and / or indium tin zinc oxide (ITZO), etc. For example, in one or more embodiments, the first light emitting electrode AE-ED and the first light receiving electrode AE-OPD may each have a three-layer structure of ITO / Ag / ITO, but the embodiments of the present disclosure are not limited thereto. In one or more embodiments, the first light emitting electrode AE-ED and the first light receiving electrode AE-OPD may include one of the above metal materials, a combination of two or more metal materials (e.g., selected from) the above metal materials, or an oxide of the above metal materials, but the embodiments of the present disclosure are not limited thereto.

[0254] The second light emitting electrode CE-ED and the second light receiving electrode CE-OPD may be common electrodes. The second light emitting electrode CE-ED and the second light receiving electrode CE-OPD as common electrodes may be cathodes or anodes, but the embodiments of the present disclosure are not limited thereto. For example, if (for example, when) the first light emitting electrode AE-ED and the first light receiving electrode AE-OPD are anodes, the second light emitting electrode CE-ED and the second light receiving electrode CE-OPD may be cathodes, and if (for example, when) the first light emitting electrode AE-ED and the first light receiving electrode AE-OPD are cathodes, the second light emitting electrode CE-ED and the second light receiving electrode CE-OPD may be anodes.

[0255] The second light emitting electrode CE-ED and the second light receiving electrode CE-OPD may be a transmissive electrode, a transflective electrode or a reflective electrode. When the second light emitting electrode CE-ED and the second light receiving electrode CE-OPD as common electrodes are transmissive electrodes, the second light emitting electrode CE-ED and the second light receiving electrode CE-OPD may be formed of a transparent metal oxide (e.g., indium tin oxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO) and / or indium tin zinc oxide (ITZO), etc.). When the second light emitting electrode CE-ED and the second light receiving electrode CE-OPD serving as a common electrode are transflective electrodes or reflective electrodes, the second light emitting electrode CE-ED and the second light receiving electrode CE-OPD may include at least one of Ag, Mg, Cu, Al, Pt, Pd, Au, Ni, Nd, Ir, Cr, Li, Ca, LiF, Mo, Ti, Yb and W, a compound thereof and / or a mixture thereof (e.g., any appropriate mixture) (e.g., AgMg, AgYb or MgYb), or a material having a multilayer structure such as LiF / Ca (a stacking structure of LiF and Ca) or LiF / Al (a stacking structure of LiF and Al).

[0256] In one or more embodiments, the first light emitting electrode AE-ED and the first light receiving electrode AE-OPD included in the light emitting element ED-D and the light receiving element OPD may be transflective electrodes or reflective electrodes, and the second light emitting electrode CE-ED and the second light receiving electrode CE-OPD may be transmissive electrodes or transflective electrodes. For example, in one or more embodiments, if (for example, when) a transmissive or transflective second light emitting electrode CE-ED and a second light receiving electrode CE-OPD are included as a common electrode, light reflected from an external object can be easily transmitted to the light receiving element OPD.

[0257] In the light emitting element ED-D, the emission layer EML is provided on the hole transport region HTR, which will be described in more detail later. The emission layer EML may have a single layer formed of a single material, a single layer formed of a plurality of materials different from each other, or a multilayer structure having a plurality of layers formed of a plurality of materials different from each other. The thickness of the light emitting layer EML may be about 1000 Å. to about For example, the thickness of the light emitting layer EML may be about to about within the range.

[0258] In the light emitting element ED-D according to one or more embodiments, the emission layer EML may include an organic light emitting material or a quantum dot material. For example, in one or more embodiments, the emission layer EML may include an anthracene derivative, a pyrene derivative, a fluoranthene derivative, a 1,2-phenylene derivative, a dihydrobenzanthracene derivative, or a triphenylene derivative as an organic light emitting material.

[0259] In one or more embodiments, in the light emitting element ED-D, the emission layer EML may include a host and a dopant. The emission layer EML may include an organic fluorescent dopant material (e.g., a thermally activated delayed fluorescent dopant material) and / or an organic phosphorescent dopant material (e.g., a phosphorescent dopant material of an organic metal complex) as a dopant material.

[0260] In one or more embodiments, the emission layer EML may include at least one selected from bis[2-(diphenylphosphino)phenyl]ether oxide (DPEPO), 4,4'-bis(carbazole-9-yl)biphenyl (CBP), 1,3-bis(carbazole-9-yl)benzene (mCP), 2,8-bis(diphenylphosphino)dibenzo[b,d]furan (PPF), 4,4',4"-tri(carbazole-9-yl)triphenylamine (TCTA), and 1,3,5-tri(1-phenyl-1H-benzo[d]imidazol-2-yl)benzene (TPBi) as a host material. However, embodiments of the present disclosure are not limited thereto, and for example, tris(8-hydroxyquinoline)aluminum (Alq 3 ), poly(N-vinylcarbazole) (PVK), 9,10-di(naphthalene-2-yl)anthracene (ADN), 2-tert-butyl-9,10-di(naphthalene-2-yl)anthracene (TBADN), distyrylarene (DSA), 4,4'-bis(9-carbazolyl)-2,2'-dimethyl-biphenyl (CDBP), 2-methyl-9,10-bis(naphthalene-2-yl)anthracene (MADN), hexaphenylcyclotriphosphazene (CP1), 1,4-bis(triphenylsilyl)benzene (UGH2), hexaphenylcyclotrisiloxane (DPSiO 3 ) and / or octaphenylcyclotetrasiloxane (DPSiO 4) etc. as the main material.

[0261] In one or more embodiments, the emission layer EML may include one or more selected from styryl derivatives (e.g., 1,4-bis[2-(3-N-ethylcarbazolyl)vinyl]benzene (BCzVB), 4-(di-p-tolylamino)-4'-[(di-p-tolylamino)styryl]stilbene (DPAVB) and / or N-(4-((E)-2-(6-((E)-4-(diphenylamino)styryl)naphthalene-2-yl)vinyl)phenyl)-N-phenyleneamine (N-BDAVBi)), perylene and its derivatives (e.g., 2,5,8,11-tetra-tert-butylperylene (TBP)) and pyrene and its derivatives (e.g., 1,1'-dipyrene, 1,4-dipyrenylbenzene and / or 1,4-bis(N,N-diphenylamino)pyrene), etc. as appropriate dopant materials.

[0262] In one or more embodiments, the emission layer EML may include, for example, a metal complex as a suitable phosphorescent dopant material, the metal complex including iridium (Ir), platinum (Pt), osmium (Os), gold (Au), titanium (Ti), zirconium (Zr), hafnium (Hf), europium (Eu), terbium (Tb) or thulium (Tm). In one or more embodiments, bis(4,6-difluorophenylpyridyl-N,C2') picolinyl iridium (III) (FIrpic), bis(2,4-difluorophenylpyridyl)-tetra(1-pyrazolyl) borate iridium (III) (FIr6) or octaethylporphyrin platinum (PtOEP) may be used as a phosphorescent dopant. However, embodiments of the present disclosure are not limited thereto.

[0263] In one or more embodiments, Figure 5 The emission layers EML-R, EML-G, and EML-B of the light emitting elements ED-R, ED-G, and ED-B shown in the figure may each include a different light emitting material. For example, the emission layers EML-R, EML-G, and EML-B may each include a different dopant material.

[0264] The light receiving element OPD according to one or more embodiments includes a polycyclic compound of one or more embodiments of the present disclosure, which will be described in more detail later. The light receiving element OPD according to one or more embodiments may include a polycyclic compound of one or more embodiments to allow charges to move easily in the light receiving layer OPL, and may therefore have improved photoelectric efficiency for converting received light into electrical signals.

[0265] Herein, the polycyclic compound of one or more embodiments described in more detail later may be referred to as a first compound.

[0266] The polycyclic compound of one or more embodiments includes a tricyclic condensed ring containing two sulfur (S) atoms as ring atoms as a central structure (hereinafter referred to as a core). The core of the polycyclic compound of one or more embodiments includes two thiophene parts and one benzene part as shown in Formula X.

[0267] Formula X

[0268]

[0269] In formula X, carbon 1 and carbon 2 are carbons forming the benzene part, and the numbering of the carbons of the benzene part is assigned to the carbon atoms except the carbons forming the thiophene part. Specifically, in formula X, hydrogen with a relatively small volume is substituted on carbon 1 and carbon 2, and thus the core can maintain a planar structure, improve the charge mobility of the polycyclic compound and improve light absorption efficiency. The carbons numbered as above are named benzene carbon 1 and benzene carbon 2. In formula X, for carbon 3 to carbon 6, the numbering is assigned to some carbon atoms constituting the thiophene part. The carbons numbered as above are named thiophene carbon 3 to thiophene carbon 6.

[0270] In the polycyclic compound of one or more embodiments, a substituted or unsubstituted arylene group having 6 to 60 carbon atoms or a substituted or unsubstituted heteroarylene group having 2 to 60 carbon atoms may be substituted on the thiophene carbon 3 or thiophene carbon 4 of the core.

[0271] In the polycyclic compound of one or more embodiments, a substituted or unsubstituted arylene group having 6 to 60 carbon atoms or a substituted or unsubstituted heteroarylene group having 2 to 60 carbon atoms may be substituted on the thiophene carbon 5 or thiophene carbon 6 of the core.

[0272] In one or more embodiments of the present disclosure, the polycyclic compound is represented by Formula 1.

[0273] Formula 1

[0274]

[0275] In formula 1, n 1 and n 2 may each independently be an integer selected from 0 to 10.

[0276] In Formula 1, if (for example, when) n 1 When Q is 0, 1 may be bonded directly to the core of one or more embodiments of the polycyclic compound without being bound by Ar 1 The indicated connector. 1 When Ar is 1 to 10, 1 Can be used to connect core and Q 1 When n 1 When the integer is 2 or greater, multiple Ar1 Can be all the same, or multiple Ar 1 At least one of may be different.

[0277] In Formula 1, if (for example, when) n 2 When Q is 0, 2 may be bonded directly to the core of one or more embodiments of the polycyclic compound without being bound by Ar 2 The indicated connector. 2 When Ar is 1 to 10, 2 Can be used to connect core and Q 2 When n 2 When the integer is 2 or greater, multiple Ar 2 Can be all the same, or multiple Ar 2 At least one of may be different.

[0278] In formula 1, Ar 1 and Ar 2 and Ar may be independently a substituted or unsubstituted arylene group having 6 to 60 carbon atoms or a substituted or unsubstituted heteroarylene group having 2 to 60 carbon atoms. 1 and Ar 2 Each of them may independently be a substituted or unsubstituted divalent furyl group, a substituted or unsubstituted divalent thiophenyl group, a substituted or unsubstituted divalent phenyl group, a substituted or unsubstituted divalent pyridyl group, or a substituted or unsubstituted divalent benzothiadiazolyl group.

[0279] In one or more embodiments, in Formula 1, Q 1 and Q 2 Each may be independently represented by any one selected from Formula Q-1 to Formula Q-7.

[0280] Formula Q-1

[0281]

[0282] Formula Q-2

[0283]

[0284] Formula Q-3

[0285]

[0286] Formula Q-4

[0287]

[0288] Formula Q-5

[0289]

[0290] Formula Q-6

[0291]

[0292] Formula Q-7

[0293]

[0294] In Formulas Q-1 to Q-3, n 101 、n 102 and n 104 may each independently be an integer selected from 0 to 3.

[0295] In formula Q-1, if (for example, when) n 101 When R is 0, the polycyclic compound of one or more embodiments may be 101 Instead, it is a compound in which three hydrogen atoms are substituted. 101 is 3 and R 101 When n is hydrogen, this embodiment can be combined with if (for example, when) n 101 is the same as when it is 0. 101 When the integer is 2 or greater, multiple R 101 Can be all the same, or multiple R 101 At least one of may be different. In formula Q-2, if (for example, when) n 102 When R is 0, the polycyclic compound of one or more embodiments may be 102 Instead, it is a compound in which three hydrogen atoms are substituted. 102 is 3 and R 102 When is hydrogen, this embodiment can be compared with if (for example, when) n 102 is the same as when it is 0. 102 When the integer is 2 or greater, multiple R 102 Can be all the same, or multiple R 102 At least one of may be different. In formula Q-3, if (for example, when) n 104 When R is 0, the polycyclic compound of one or more embodiments may be 104 Instead, it is a compound in which three hydrogen atoms are substituted. 104 is 3 and R 104 When is hydrogen, this embodiment can be compared with if (for example, when) n 104 is the same as when it is 0. 104 When the integer is 2 or greater, multiple R 104 Can be all the same, or multiple R 104 At least one of may be different.

[0296] In formula Q-2 and formula Q-6, n103 and n 110 may each independently be an integer selected from 0 to 2.

[0297] In formula Q-2, if (for example, when) n 103 When R is 0, the polycyclic compound of one or more embodiments may be 103 Instead, it is a compound in which two hydrogen atoms are substituted. 103 is 2 and R 103 When is hydrogen, this embodiment can be compared with if (for example, when) n 103 is the same as when it is 0. 103 When the value is 2, multiple R 103 Can be all the same, or multiple R 103 In formula Q-6, if (for example, when) n 110 When R is 0, the polycyclic compound of one or more embodiments may be 110 Instead, it is a compound in which two hydrogen atoms are substituted. 110 is 2 and R 110 When is hydrogen, this embodiment can be compared with if (for example, when) n 110 is the same as when it is 0. 110 When the value is 2, multiple R 110 Can be all the same, or multiple R 110 It can be different.

[0298] In Formulas Q-5 to Q-7, n 108 、n 109 and n 111 may each independently be an integer selected from 0 to 5.

[0299] In equation Q-5, if (for example, when) n 108 When R is 0, the polycyclic compound of one or more embodiments may be 108 Instead, it is a compound in which five hydrogen atoms are substituted. 108 is 5 and R 108 When is hydrogen, this embodiment can be compared with if (for example, when) n 108 is the same as when it is 0. 108 When the integer is 2 or greater, multiple R 108 Can be all the same, or multiple R 108 At least one of may be different. In formula Q-6, if (for example, when) n 109 When R is 0, the polycyclic compound of one or more embodiments may be 109 Instead, it is a compound in which five hydrogen atoms are substituted. 109 is 5 and R 109When is hydrogen, this embodiment can be compared with if (for example, when) n 109 is the same as when it is 0. 109 When the integer is 2 or greater, multiple R 109 Can be all the same, or multiple R 109 At least one of may be different. In formula Q-7, if (for example, when) n 111 When R is 0, the polycyclic compound of one or more embodiments may be 111 Instead, it is a compound in which five hydrogen atoms are substituted. 111 is 5 and R 111 When is hydrogen, this embodiment can be compared with if (for example, when) n 111 is the same as when it is 0. 111 When the integer is 2 or greater, multiple R 111 Can be all the same, or multiple R 111 At least one of may be different.

[0300] In Formula Q-1 and Formula Q-2, R 101 To R 103 may be each independently hydrogen, deuterium, halogen, cyano, nitro, substituted or unsubstituted alkyl having 1 to 30 carbon atoms, substituted or unsubstituted aryl having 6 to 30 carbon atoms, or substituted or unsubstituted heteroaryl having 2 to 30 carbon atoms. For example, in one or more embodiments, R 101 To R 103 They may each independently be hydrogen, unsubstituted methyl, cyano, nitro, fluorine or chlorine.

[0301] In Formulas Q-3 to Q-7, R 104 To R 112 may be each independently hydrogen, deuterium, halogen, cyano, nitro, substituted or unsubstituted alkyl having 1 to 30 carbon atoms, substituted or unsubstituted aryl having 6 to 30 carbon atoms, or substituted or unsubstituted heteroaryl having 2 to 30 carbon atoms. For example, in one or more embodiments, R 104 To R 112 They may each independently be hydrogen, unsubstituted methyl, nitro, unsubstituted phenyl or phenyl substituted by fluorine.

[0302] In Formulae Q-1 to Q-7, —* is a site for bonding to Formula 1.

[0303] In one or more embodiments, in Formula 1, if (for example, when) Q 1 and Q 2 When each freestyle Q-1 is expressed, Q 1 and Q 2Each may be independently represented by any one selected from the group consisting of Formulae R-11 to R-19.

[0304] Formula R-11

[0305]

[0306] Formula R-12

[0307]

[0308] Formula R-13

[0309]

[0310] Formula R-14

[0311]

[0312] Formula R-15

[0313]

[0314] Formula R-16

[0315]

[0316] Formula R-17

[0317]

[0318] Formula R-18

[0319]

[0320] Formula R-19

[0321]

[0322] In formulae R-11 to R-19, -* is a site for bonding to formula 1.

[0323] In one or more embodiments, in Formula 1, if (for example, when) Q 1 and Q 2 When each freestyle Q-2 is expressed, Q 1 and Q 2 Each may be independently represented by any one selected from the group consisting of Formula R-21 to Formula R-24.

[0324] Formula R-21

[0325]

[0326] Formula R-22

[0327]

[0328] Formula R-23

[0329]

[0330] Formula R-24

[0331]

[0332] In formulae R-21 to R-24, -* is a site for bonding to formula 1.

[0333] In one or more embodiments, in Formula 1, if (for example, when) Q 1 and Q 2 When each freestyle Q-3 is expressed, Q 1 and Q 2 Each may be independently represented by any one selected from the group consisting of Formula R-31 to Formula R-34.

[0334] Formula R-31

[0335]

[0336] Formula R-32

[0337]

[0338] Formula R-33

[0339]

[0340] Formula R-34

[0341]

[0342] In formulae R-31 to R-34, -* is a site for bonding to formula 1.

[0343] In one or more embodiments, in Formula 1, if (for example, when) Q 1 and Q 2 When each freestyle Q-4 is expressed, Q 1 and Q 2 They can be independently represented by the formula R-41 or the formula R-42.

[0344] Formula R-41

[0345]

[0346] Formula R-42

[0347]

[0348] In formula R-41 and formula R-42, -* is a site for bonding to formula 1.

[0349] In one or more embodiments, in Formula 1, if (for example, when) Q 1 and Q 2 When each freestyle Q-5 is indicated, Q 1 and Q 2 They can be each independently represented by the formula R-51 or the formula R-52.

[0350] Formula R-51

[0351]

[0352] Formula R-52

[0353]

[0354] In formula R-51 and formula R-52, -* is a site for bonding to formula 1.

[0355] In one or more embodiments, in Formula 1, if (for example, when) Q 1 and Q 2 When each freestyle Q-6 is indicated, Q 1 and Q 2 Each can be independently represented by the formula R-61.

[0356] Formula R-61

[0357]

[0358] In formula R-61, -* is a site for connection to formula 1.

[0359] In one or more embodiments, in Formula 1, if (for example, when) Q 1 and Q 2 When each freestyle Q-7 is indicated, Q 1 and Q 2 Each can be independently represented by the formula R-71.

[0360] Formula R-71

[0361]

[0362] In formula R-71, -* is a site for bonding to formula 1.

[0363] The light receiving element OPD of one or more embodiments includes the first compound represented by Formula 1, and thus has high charge mobility and large light absorption efficiency compared to the charge mobility and light absorption efficiency of the comparative light receiving element including the appropriate material in the art. The core of the first compound has a planar structure because two hydrogen atoms are substituted on the benzene ring, and accordingly, the first compound has relatively high charge mobility and improved light absorption efficiency. In one or more embodiments, Q 1 and Q 2 is a nitrogen-containing substituent and serves as an electron-withdrawing part that accepts electrons. 1 and Q 2 The high-energy electrons of the first compound are transferred to the nucleus, and then the electrons are donated to another compound. Through this process, the energy of the incident light can be transferred to another location, and the transferred energy can be converted into an electrical signal. 1 and Ar 2 The conjugation length of the entire first compound can be adjusted to extend the absorption wavelength range. For example, if (for example, when) the conjugation length of the first compound is increased by Ar 1 and Ar 2 When the first compound increases, the first compound can absorb light in the green wavelength range and the red wavelength range. In one or more embodiments, the light receiving element OPD containing the first compound has greater deposition stability and heat resistance than the light receiving element OPD containing typical materials in the art, and therefore has improved film purity when deposited substantially continuously. For example, in one or more embodiments, the first compound may have a highest occupied molecular orbital (HOMO) energy level of about -5.8eV to about -5.0eV and a lowest unoccupied molecular orbital (LUMO) energy level of about -3.9eV to about -2.7eV, and can therefore effectively absorb light in the green wavelength range and the red wavelength range.

[0364] In one or more embodiments, the first compound represented by Formula 1 may be represented by any one selected from Formula A-1 to Formula A-5.

[0365] Formula A-1

[0366]

[0367] Formula A-2

[0368]

[0369] Formula A-3

[0370]

[0371] Formula A-4

[0372]

[0373] Formula A-5

[0374]

[0375] In Formula A-1 to Formula A-5, X 4 and X 5 and may each independently be oxygen, sulfur, selenium or tellurium. The same description as in Formula 1 may apply to Q 1 and Q 2 .

[0376] In one or more embodiments, the first compound represented by Formula 1 may be represented by any one selected from Formula 1-1 to Formula 1-6.

[0377] Formula 1-1

[0378]

[0379] Formula 1-2

[0380]

[0381] Formula 1-3

[0382]

[0383] Formula 1-4

[0384]

[0385] Formula 1-5

[0386]

[0387] Formula 1-6

[0388]

[0389] In Formula 1-1 to Formula 1-6, the same description as in Formula 1 can be applied to Q 1 and Q 2 .

[0390] The polycyclic compound of one or more embodiments may be any one selected from the compounds shown in Compound Group 1. The light receiving layer OPL of the light receiving element OPD of one or more embodiments may include at least one polycyclic compound selected from the compounds shown in Compound Group 1 as the first compound.

[0391] Compound Group 1

[0392]

[0393]

[0394]

[0395]

[0396]

[0397] In one or more embodiments, the light receiving layer OPL may further include a second compound represented by Formula 2.

[0398] Formula 2

[0399]

[0400] In formula 2, Cy 1 It may be a substituted or unsubstituted aromatic hydrocarbon ring having 6 to 30 carbon atoms. For example, in one or more embodiments, Cy 1 It may be unsubstituted naphthalene, unsubstituted biphenyl, unsubstituted benzene or unsubstituted perylene. 1 and A 2 can be independently oxygen or NR 113 . R 113 It may be hydrogen, deuterium, halogen, 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 2 to 30 carbon atoms, or substituted or unsubstituted cycloalkyl having 3 to 30 carbon atoms. For example, in one or more embodiments, R 113 It may be an unsubstituted methyl group, an unsubstituted ethyl group, an unsubstituted tert-butyl group, an unsubstituted phenyl group, an unsubstituted tolyl group, a phenyl group substituted by fluorine, a phenyl group substituted by chlorine, an unsubstituted cyanophenyl group, an unsubstituted pyridyl group, an unsubstituted cyclohexyl group, an unsubstituted thienyl group, an unsubstituted isopropyl group, an unsubstituted methoxyphenyl group or an unsubstituted methylthienyl group.

[0401] The light receiving layer OPL of the light receiving element OPD of one or more embodiments may include at least one polycyclic compound selected from the compounds shown in Compound Group 2 as the second compound.

[0402] Compound Group 2

[0403]

[0404]

[0405]

[0406]

[0407] In one or more embodiments, the light receiving layer OPL may include a light absorbing layer LAL containing a first compound and a photoelectric conversion layer LCL containing a second compound. The light absorbing layer LAL may be used to absorb light incident on the light receiving element OPD. The photoelectric conversion layer LCL may be used to receive light absorbed by the light absorbing layer LAL and convert the light into an electrical signal.

[0408] In one or more embodiments, the light receiving layer OPL may include a light absorbing layer LAL formed of a first compound and a photoelectric conversion layer LCL formed of a second compound.

[0409] In one or more embodiments, the photoelectric conversion layer LCL may be disposed on the light absorbing layer LAL. The photoelectric conversion layer LCL may be disposed between the light absorbing layer LAL and the electron transport region ETR, which will be described in more detail later. The light absorbing layer LAL may be disposed between the photoelectric conversion layer LCL and the hole transport region HTR.

[0410] In one or more embodiments, an interface may be defined between the light absorbing layer LAL and the photoelectric conversion layer LCL. The light absorbing layer LAL may not form a single layer with the photoelectric conversion layer LCL, but the light absorbing layer LAL may be a separate layer.

[0411] In one or more embodiments, the light receiving element OPD may further include a first electrode AE ​​(see Figure 5 ) and the hole transport region HTR between the light receiving layer OPL and the second electrode CE (see Figure 5 ) between the electron transport region ETR.

[0412] The hole transport region HTR may have a single layer formed of a single material, a single layer formed of a plurality of materials different from each other, or a multilayer structure having a plurality of layers formed of a plurality of materials different from each other. For example, in one or more embodiments, the hole transport region HTR may be provided as a single layer without being divided into a plurality of layers. The hole transport region HTR may be disposed on the first electrode AE ​​(see Figure 5 ) and the light receiving layer OPL. The hole transport region HTR may be disposed between the first electrode AE ​​(see Figure 5 ) and the emission layer EML. In one or more embodiments, Figure 5 , the hole transport region HTR is shown to be arranged corresponding to the red light emitting region PXA-R, the green light emitting region PXA-G, the blue light emitting region PXA-B, and the light receiving region IPA, but as shown in FIG. Fig. 9 As shown in the description of FIG. 1 , in one or more embodiments, the hole transport region HTR may be provided as a common layer, which will be described in more detail later.

[0413] See also Fig. 7Aand Figure 7B In one or more embodiments, the hole transport region HTR may include a hole injection layer HIL and a hole transport layer HTL stacked in sequence. In one or more embodiments, the hole transport region HTR may further include at least one of a hole buffer layer, a light emitting auxiliary layer, and an electron blocking layer.

[0414] The hole injection layer HIL may include, for example, a phthalocyanine compound (such as copper phthalocyanine), N 1 ,N 1 '-([1,1'-biphenyl]-4,4'-diyl)bis(N 1 -phenyl-N 4 ,N 4 -dimethylphenylbenzene-1,4-diamine) (DNTPD), 4,4',4"-[tri(3-methylphenyl)phenylamino]triphenylamine (m-MTDATA), 4,4',4"-tri(N,N-diphenylamino)triphenylamine (TDATA), 4,4',4"-tri[N-(2-naphthyl)-N-phenylamino]triphenylamine (2-TNATA), poly(3,4-ethylenedioxythiophene) / poly(4-styrenesulfonate) (PEDOT / PSS), polyaniline / dodecylbenzenesulfonic acid (PANI / One or more of poly(4-styrene sulfonate) (PANI / PSS), N,N'-di(naphthalene-1-yl)-N,N'-diphenyl-benzidine (NPB), triphenylamine-containing polyether ketone (TPAPEK), 4-isopropyl-4'-methyldiphenyliodonium tetrakis(pentafluorophenyl)borate and dipyrazino[2,3-f:2',3'-h]quinoxaline-2,3,6,7,10,11-hexacarbonitrile (HAT-CN), etc.

[0415] For example, in one or more embodiments, the hole transport layer HTL may include one or more selected from carbazole derivatives (such as N-phenylcarbazole and polyvinylcarbazole), fluorene derivatives and triphenylamine derivatives (such as 4,4',4"-tri(carbazole-9-yl)triphenylamine (TCTA), N,N'-bis(3-methylphenyl)-N,N'-diphenyl-[1,1'-biphenyl]-4,4'-diamine (TPD), N,N'-di(naphthalene-1-yl)-N,N'-diphenyl-benzidine (NPB), 4,4'-cyclohexylenebis[N,N-bis(4-methylphenyl]aniline] (TAPC), 4,4'-bis[N,N'-(3-tolyl)amino]-3,3'-dimethylbiphenyl (HMTPD), 1,3-bis(carbazole-9-yl)benzene (mCP) and 4,4'-bis(carbazole-9-yl)biphenyl (CBP), etc.

[0416] However, embodiments of the present disclosure are not limited thereto, and the hole injection layer HIL and the hole transport layer HTL may include appropriate hole injection layer materials or appropriate hole transport layer materials, respectively, in addition to the above materials.

[0417] In one or more embodiments, the electron transport region ETR may include an electron transport layer ETL and an electron injection layer EIL. However, the embodiments of the present disclosure are not limited thereto, and the electron transport region ETR may have a single-layer structure. In one or more embodiments, the electron transport region ETR may further include a hole blocking layer.

[0418] In the light emitting element ED-D, the electron transport region ETR may be disposed on the emission layer EML, and in the light receiving element OPD, the electron transport region ETR may be disposed on the light receiving layer OPL.

[0419] In one or more embodiments, the electron transport layer ETL may include an anthracene compound. However, the embodiments of the present disclosure are not limited thereto, and the electron transport layer ETL may include, for example, tris(8-hydroxyquinoline)aluminum (Alq 3 ), 1,3,5-tris[(3-pyridyl)-phenyl-3-yl]benzene, 2,4,6-tris(3'-(pyridin-3-yl)biphenyl-3-yl)-1,3,5-triazine, 2-(4-(N-phenylbenzimidazol-1-yl)phenyl)-9,10-dinaphthylanthracene, 1,3,5-tris(1-phenyl-1H-benzo[d]imidazol-2-yl)benzene (TPBi), 2,9-dimethyl-4,7-diphenyl 1,10-phenanthroline (BCP), 4,7-diphenyl-1,10-phenanthroline (Bphen), 3-(4-biphenyl)-4-phenyl-5-tert-butylphenyl-1,2,4-triazole (TAZ), 4-(naphthalene-1-yl)-3,5-diphenyl-4H-1,2,4-triazole (NTAZ), 2-(4-biphenyl)-5-(4-tert-butylphenyl)-1,3,4-oxadiazole ( t Bu-PBD), bis(2-methyl-8-hydroxyquinoline-N1,O8)-(1,1'-biphenyl-4-hydroxy)aluminum (BAlq), bis(benzoquinoline-10-hydroxy)beryllium (Bebq 2 ), 9,10-di(naphthalene-2-yl)anthracene (ADN), 1,3-bis[3,5-di(pyridin-3-yl)phenyl]benzene (BmPyPhB), and / or mixtures thereof (eg, any suitable mixture).

[0420] In one or more embodiments, the electron injection layer EIL may include an alkali metal halide (such as LiF, NaCl, CsF, RbCl, RbI, CuI and KI), a lanthanide metal (such as Yb), or a co-deposition material of an alkali metal halide and a lanthanide metal. For example, in one or more embodiments, the electron injection layer EIL may include KI:Yb and / or RbI:Yb as a co-deposition material. In one or more embodiments, a metal oxide (LiF, NaCl, CsF, RbCl, RbI, CuI and KI) may be used for the electron injection layer EIL. 2 O and / or BaO) and / or Liq, etc., but the embodiments of the present disclosure are not limited thereto. The electron injection layer EIL may also be formed of a mixture material of an electron transport material and an insulating organic metal salt. The insulating organic metal salt may be a material having an energy band gap of about 4 eV or greater. For example, the insulating organic metal salt may include, for example, metal acetates, metal benzoates, metal acetoacetates, metal acetylacetonates and / or metal stearates.

[0421] Fig. 8A and Figure 8B are views of a light emitting element and a light receiving element as examples, respectively. Fig. 8A is a cross-sectional view showing a light emitting element according to one or more embodiments, and Figure 8B is a cross-sectional view showing a light receiving element according to one or more embodiments. Fig. 8A The light emitting element ED-D according to one or more embodiments shown in Fig. 7A The light emitting element ED-D shown in FIG. Fig. 8A The light emitting element ED-D according to one or more embodiments shown in FIG. 1 further includes an auxiliary layer HEL and a buffer layer BFL. In one or more embodiments, Figure 8B The light receiving element OPD according to one or more embodiments shown in Figure 7B The light receiving element OPD shown in FIG. Figure 8B The light receiving element OPD according to one or more embodiments shown in further includes an auxiliary layer HEL and a buffer layer BFL. Fig. 8A The light emitting elements ED-D and Figure 8B The light receiving element OPD shown in FIG. Figure 5 One or more embodiments of the light emitting elements ED-R, ED-G and ED-B and the light receiving element OPD of the display element layer EDL of the display module DM are shown.

[0422] See also Fig. 8A, the light emitting element ED-D according to one or more embodiments may have a structure in which a first light emitting electrode AE-ED, a hole injection layer HIL, a hole transport layer HTL, an auxiliary layer HEL, an emission layer EML, a buffer layer BFL, an electron transport layer ETL, an electron injection layer EIL, and a second light emitting electrode CE-ED are stacked in the order described. Figure 8B , the light receiving element OPD according to one or more embodiments may have a structure in which a first light receiving electrode AE-OPD, a hole injection layer HIL, a hole transport layer HTL, an auxiliary layer HEL, a light receiving layer OPL, a buffer layer BFL, an electron transport layer ETL, an electron injection layer EIL, and a second light receiving electrode CE-OPD are stacked in the order described. The hole transport region HTR may include a hole injection layer HIL, a hole transport layer HTL, and an auxiliary layer HEL. The electron transport region ETR may include a buffer layer BFL, an electron transport layer ETL, and an electron injection layer EIL.

[0423] The auxiliary layer HEL may include a material used in the hole transport layer HTL. For example, in one or more embodiments, the auxiliary layer HEL may include a material selected from carbazole derivatives (such as N-phenylcarbazole and polyvinylcarbazole), fluorene derivatives and triphenylamine derivatives (such as 4,4',4"-tris(carbazole-9-yl)triphenylamine (TCTA), N,N'-bis(3-methylphenyl)-N,N'-diphenyl-[1,1'-biphenyl]-4,4'-diamine (TPD), N,N'-di(naphthalene-1-yl)-N,N'-diphenyl-benzidine (NPB), 4,4'-cyclohexylenebis[N, One or more of N-bis(4-methylphenyl]aniline) (TAPC), 4,4'-bis[N,N'-(3-methylphenyl)amino]-3,3'-dimethylbiphenyl (HMTPD), 9-(4-tert-butylphenyl)-3,6-bis(triphenylsilyl)-9H-carbazole (CzSi), 9-phenyl-9H-3,9'-bicarbazole (CCP), 1,3-bis(carbazole-9-yl)benzene (mCP) and 1,3-bis(1,8-dimethyl-9H-carbazole-9-yl)benzene (mDCP), etc.

[0424] In the light emitting element ED-D, the auxiliary layer HEL may be used as a light emitting auxiliary layer. For example, in the light emitting element ED-D, the auxiliary layer HEL may compensate for the resonance distance according to the wavelength of light emitted from the emission layer EML, and thus may increase the light emitting efficiency. In one or more embodiments, the auxiliary layer HEL may be provided as a light emitting auxiliary layer. Figure 5 The respective emission layers EML-R, EML-G and EML-B of the light emitting elements ED-R, ED-G and ED-B shown in the figure are adjusted to have different thicknesses according to the wavelengths of light emitted.

[0425] In the light receiving element OPD, the auxiliary layer HEL may function as an electron blocking layer. For example, the auxiliary layer HEL may prevent or reduce the transfer of electrons formed in the light receiving layer OPL to the hole transport layer HTL.

[0426] The buffer layer BFL may be used as a hole blocking layer. For example, the buffer layer BFL may prevent or reduce the delivery of holes formed in the light receiving layer OPL to the electron transport layer ETL. In one or more embodiments, the buffer layer BFL may be provided as a common layer. For example, in one or more embodiments, the buffer layer BFL may be provided as a common layer throughout the light emitting elements ED-R, ED-G and ED-B and the light receiving element OPD. In one or more embodiments, the buffer layer BFL may overlap with the entire light emitting area PXA-R, PXA-G and PXA-B, the light receiving area IPA and the non-light emitting area NPXA.

[0427] The buffer layer BFL may include, for example, at least one of 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline (BCP) and 4,7-diphenyl-1,10-phenanthroline (Bphen). However, embodiments of the present disclosure are not limited thereto.

[0428] Return to see Figure 5 , the emission layers EML-R, EML-G, and EML-B of the light emitting elements ED-R, ED-G, and ED-B may be individually formed in the first opening OP-E. In one or more embodiments, the light receiving layer OPL of the light receiving element OPD may be individually formed in the second opening OP-I.

[0429] exist Figure 5 In one or more embodiments shown in , the electron transport region ETR may be arranged on each of the respective emission layers EML-R, EML-G and EML-B of the light emitting elements ED-R, ED-G and ED-B, or on the light receiving layer OPL of the light receiving element OPD, and may be provided by being separated by a pixel defining film PDL. In one or more embodiments, the electron transport region ETR may be provided as a single common layer. The electron transport region ETR may be provided as a common layer throughout the light emitting elements ED-R, ED-G and ED-B and the light receiving element OPD. The electron transport region ETR may overlap with the entire light emitting region PXA-R, PXA-G and PXA-B, the light receiving region IPA and the non-light emitting region NPXA.

[0430] One or more embodiments may include an encapsulation layer TFL disposed on the light emitting elements ED-R, ED-G, and ED-B and the light receiving element OPD. The encapsulation layer TFL may include at least one inorganic layer and at least one organic layer. For example, in one or more embodiments, the encapsulation layer TFL may include an inorganic layer, an organic layer, and an inorganic layer sequentially stacked in the order described, but the layers forming (or providing) the encapsulation layer TFL are not limited thereto.

[0431] The display module DM according to one or more embodiments may include an input sensing layer ISL disposed on the display panel DP. The input sensing layer ISL may be disposed on the display element layer EDL. The input sensing layer ISL may detect an external input applied from the outside. The external input may be a user input. The user input may include one or more appropriate types (kinds) of external input (such as a user's body part, light, heat, pen and / or pressure).

[0432] In one or more embodiments, the input sensing layer ISL may be formed on the display panel DP by a roll-to-roll process. In these embodiments, the input sensing layer ISL may be expressed as being directly disposed on the display panel DP. Being directly disposed may indicate that no third component is disposed between the input sensing layer ISL and the display panel DP. For example, a separate adhesive member may not be disposed between the input sensing layer ISL and the display panel DP. For example, the input sensing layer ISL may be directly disposed on the encapsulation layer TFL.

[0433] However, the embodiments of the present disclosure are not limited thereto, for example, in one or more embodiments, an adhesive member may be further disposed between the input sensing layer ISL and the display panel DP. The input sensing layer ISL may include a lower insulating layer IS-IL1, a first conductive layer IS-CL1, an interlayer insulating layer IS-IL2, a second conductive layer IS-CL2, and an upper insulating layer IS-IL3. In one or more embodiments of the present disclosure, at least one of the lower insulating layer IS-IL1 and the upper insulating layer IS-IL3 may not be provided.

[0434] Each of the first conductive layer IS-CL1 and the second conductive layer IS-CL2 may have a single layer structure or a structure of multiple layers stacked along the third directional axis DR3. The conductive layer having a multi-layer structure may include at least two transparent conductive layers and / or metal layers. The conductive layer having a multi-layer structure may include metal layers having different metals. Each of the transparent conductive layers may include indium tin oxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO), indium tin zinc oxide (ITZO), PEDOT, metal nanowires and / or graphene. Each of the metal layers may include molybdenum, silver, titanium, copper, aluminum and / or their alloys. For example, in one or more embodiments, each of the first conductive layer IS-CL1 and the second conductive layer IS-CL2 may have a three-layer metal structure (e.g., a three-layer structure of titanium / aluminum / titanium). Metals with relatively high durability and low reflectivity may be applied to the upper / lower layers, and metals with higher conductivity may be applied to the inner layer.

[0435] In one or more embodiments, each of the first conductive layer IS-CL1 and the second conductive layer IS-CL2 includes a plurality of conductive patterns. Hereinafter, the first conductive layer IS-CL1 is described as including a first conductive pattern, and the second conductive layer IS-CL2 is described as including a second conductive pattern. Each of the first conductive pattern and the second conductive pattern may include a sensing electrode and a signal line connected thereto. The first conductive pattern and the second conductive pattern may be arranged to overlap with the light-blocking portion BM, which will be described in more detail later. The light-blocking portion BM overlaps with the first conductive layer IS-CL1 and the second conductive layer IS-CL2 to prevent or reduce reflection of external light by the first conductive layer IS-CL1 and the second conductive layer IS-CL2.

[0436] Each of the lower insulating layer IS-IL1, the interlayer insulating layer IS-IL2, and the upper insulating layer IS-IL3 may include an inorganic film or an organic film. In one or more embodiments, the lower insulating layer IS-IL1 and the interlayer insulating layer IS-IL2 may include an inorganic film. In one or more embodiments, the upper insulating layer IS-IL3 may include an organic film.

[0437] In one or more embodiments, the display module DM may include an anti-reflection member RP disposed on the display panel DP. In one or more embodiments, the anti-reflection member RP may be disposed directly on the input sensing layer ISL. The anti-reflection member RP may include a color filter layer CFL and an organic planarization layer OCL.

[0438] The color filter layer CFL may include a filter portion CF and a light blocking portion BM. The filter portion CF may include a red filter portion CF-R, a green filter portion CF-G, and a blue filter portion CF-B. The red filter portion CF-R, the green filter portion CF-G, and the blue filter portion CF-B may each be a portion placed to correspond to the red light emitting area PXA-R, the green light emitting area PXA-G, and the blue light emitting area PXA-B, respectively. In one or more embodiments, the green filter portion CF-G may overlap with the light receiving area IPA. For example, in one or more embodiments, the green filter portion CF-G may overlap with the green light emitting element ED-G and the light receiving element OPD.

[0439] The red filter portion CF-R may transmit red light, the green filter portion CF-G may transmit green light, and the blue filter portion CF-B may transmit blue light. Each of the red filter portion CF-R, the green filter portion CF-G, and the blue filter portion CF-B may include a polymer photosensitive resin and a pigment and / or a dye. The red filter portion CF-R may include a red pigment and / or a red dye, the green filter portion CF-G may include a green pigment and / or a green dye, and the blue filter portion CF-B may include a blue pigment and / or a blue dye.

[0440] However, the embodiments of the present disclosure are not limited thereto, and the blue filter portion CF-B may not include (e.g., may exclude) a pigment and / or a dye. The blue filter portion CF-B may include a polymer photosensitive resin, but may not include (e.g., may exclude) a pigment and / or a dye. The blue filter portion CF-B may be transparent. The blue filter portion CF-B may be formed of a transparent photosensitive resin.

[0441] The light blocking portion BM may be arranged on the input sensing layer ISL and overlap with the boundary of the adjacent filter portion CF. The edges of the adjacent filter portions CF may overlap with each other. For example, in one or more embodiments, the green filter portion CF-G and the red filter portion CF-R are overlapped and arranged on the light blocking portion BM, and / or the green filter portion CF-G and the blue filter portion CF-B may be overlapped and arranged on the light blocking portion BM. The light blocking portion BM may prevent or reduce light leakage and separate the boundaries between the adjacent filter portions CF-R, CF-G, and CF-R.

[0442] In one or more embodiments, the light-blocking portion BM may be a black matrix. The light-blocking portion BM may include an organic pigment and / or an organic dye. The light-blocking portion BM may be formed by including an organic light-blocking material and / or an inorganic light-blocking material, both of which (e.g., simultaneously) include a black pigment and / or a black dye. In one or more embodiments, the light-blocking portion BM may overlap with a pixel-defining film PDL. The light-blocking portion BM may overlap with a pixel-defining film PDL that is placed between the light-emitting areas PXA-R, PXA-G, and PXA-B and that separates the light-emitting areas PXA-R, PXA-G, and PXA-B from the light-receiving area IPA.

[0443] The organic planarization layer OCL may be disposed on the color filter layer CFL. The organic planarization layer OCL may be disposed on the color filter layer CFL to protect the color filter portions CF-R, CF-G, and CF-B and planarize the upper surface of the color filter layer CFL. The organic planarization layer OCL may include an organic material such as an acrylic resin or an epoxy resin.

[0444] Fig. 9 FIG. 1 is a view showing a cross section of a portion of a display module according to one or more embodiments. Fig. 9 When describing one or more embodiments, the above reference will not be described again. Figures 1 to 8B The contents described overlap, and their differences will be mainly described.

[0445] and Figure 5 Compared with the display module DM according to one or more embodiments shown and described in Fig. 9 The display module DM-a according to one or more embodiments shown in FIG. 1 is different in configuration of the light emitting elements ED-R, ED-G, and ED-B and the light receiving element OPD.

[0446] See also Fig. 9 ,and Figure 5 Compared to one or more embodiments shown in , the hole transport region HTR is different in that it is arranged in a common layer to cover the light emitting elements ED-R, ED-G and ED-B and the light receiving element OPD. The hole transport region HTR may not be patterned and may overlap the entire light emitting regions PXA-R, PXA-G and PXA-B, the light receiving region IPA, and the non-light emitting region NPXA.

[0447] exist Fig. 9In one or more embodiments shown in , the display element layer EDL may further include a capping layer CPL. The capping layer CPL may be arranged on the second electrode CE of the light emitting elements ED-R, ED-G and ED-B and the light receiving element OPD. The capping layer CPL may be arranged between the second electrode CE and the encapsulation layer TFL. The capping layer CPL may be provided as a common layer overlapping with all the pixel defining films PDL, the emission layers EML-R, EML-G and EML-B, and the light receiving layer OPL.

[0448] The capping layer CPL may include a plurality of layers or a single layer. In one or more embodiments, the capping layer CPL may be an organic layer or an inorganic layer. For example, if (for example, when) the capping layer CPL includes an inorganic material, the inorganic material may include an alkali metal compound (such as LiF), an alkaline earth metal compound (such as MgF 2 )、SiON、SiN x and / or SiO y wait.

[0449] For example, if (eg, when) the capping layer CPL includes an organic material, the organic material may include N,N'-bis(1-naphthyl)-N,N'-bis(phenyl)-2,2'-dimethylbenzidine (α-NPD), NPB, TPD, m-MTDATA, Alq 3 , CuPc, N4,N4,N4',N4'-tetrakis(biphenyl-4-yl)biphenyl-4,4'-diamine (TPD15) and / or 4,4',4"-tris(carbazole-9-yl)triphenylamine (TCTA), etc., or may include epoxy resins or acrylates (such as methacrylates). However, the embodiments of the present disclosure are not limited thereto.

[0450] In one or more embodiments, the capping layer CPL may have a refractive index of about 1.6 or more. In one or more embodiments, the capping layer CPL may have a refractive index of about 1.6 or more within a wavelength range of about 550 nm to about 660 nm.

[0451] Hereinafter, the polycyclic compound and the light receiving element of one or more embodiments of the present disclosure will be specifically described with reference to Examples and Comparative Examples. In addition, the illustrated examples are only for understanding the present disclosure, and the scope of the present disclosure is not limited thereto.

[0452] 1. Synthesis of polycyclic compounds

[0453] First, the process of synthesizing polycyclic compounds according to one or more embodiments of the present disclosure will be described in more detail by taking the process of synthesizing compounds P1, P3, P9, P12, P13, P16, P20, P25, P30, P34, P37, N5, N6, N8, N15, and N16 as examples. In addition, the process of synthesizing polycyclic compounds described below is provided as an example, and therefore the process of synthesizing polycyclic compounds according to one or more embodiments of the present disclosure is not limited to the example.

[0454] (1) Synthesis of Compound P1

[0455] 2,6-Dibromobenzo[1,2-b:4,5-b']dithiophene (1.22 g, 3.5 mmol), benzo-2,1,3-thiadiazole-4-boronic acid (1.28 g, 7.14 mmol), Pd(PPh 3 ) 4 (tetrakis(triphenylphosphine)palladium) (1.16 g, 1.00 mmol) and K 2 CO 3 (2.48 g, 17.92 mmol) was dissolved in 120 mL of tetrahydrofuran (THF) / H 2 O (volume ratio of 2: 1) mixed solution and stirred at 70 ° C for 5 hours. After the reaction solution was cooled to room temperature, 60 mL of water was added, and the mixture was extracted three times with 80 mL of ether. The collected organic layer was dried over magnesium sulfate, the solvent was evaporated, and the resulting residue was separated and purified by silica gel tube chromatography to obtain 1.19 g of compound P1 (yield: 74%). 1 H nuclear magnetic resonance (NMR) spectroscopy (CDCl 3 , 400 MHz) and mass spectrometry / fast atom bombardment (MS / FAB) to confirm the generated compounds.

[0456] C 22 H 10 N 4 S 4 : Calculated value 458.59, measured value 458.62

[0457] (2) Synthesis of Compound P3

[0458]

[0459] Compound P3 was synthesized using a method substantially the same as the method for synthesizing Compound P1, except that the intermediate Compound P3-A was used instead of benzo-2,1,3-thiadiazole-4-boronic acid in the synthesis of Compound P1. 1H NMR (CDCl 3 , 400 MHz) and MS / FAB to confirm the generated compounds.

[0460] C 24 H 8 N 6 S 4 : Calculated value 508.61, measured value 508.72

[0461] (3) Synthesis of Compound P9

[0462]

[0463] Compound P9 was synthesized using a method substantially the same as the method for synthesizing Compound P1, except that the intermediate Compound P9-A was used instead of benzo-2,1,3-thiadiazole-4-boronic acid in the synthesis of Compound P1. 1 H NMR (CDCl 3 , 400 MHz) and MS / FAB to confirm the generated compounds.

[0464] C 26 H 14 N 4 S 2 : Calculated value 446.55, measured value 446.61

[0465] (4) Synthesis of Compound P12

[0466]

[0467] Compound P12 was synthesized using a method substantially the same as the method for synthesizing Compound P1, except that the intermediate Compound P12-A was used instead of benzo-2,1,3-thiadiazole-4-boronic acid in the synthesis of Compound P1. 1 H NMR (CDCl 3 , 400 MHz) and MS / FAB to confirm the generated compounds.

[0468] C 26 H 12 F 2 N 4 S 2 : Calculated value 482.53, measured value 482.91

[0469] (5) Synthesis of Compound P13

[0470]

[0471] Compound P13 was synthesized using a method substantially the same as the method for synthesizing Compound P1, except that the intermediate Compound P13-A was used instead of benzo-2,1,3-thiadiazole-4-boronic acid in the synthesis of Compound P1. 1 H NMR (CDCl 3 , 400 MHz) and MS / FAB to confirm the generated compounds.

[0472] C 34 H 18 N 4 S 2 : Calculated value 546.67, measured value 546.91

[0473] (6) Synthesis of Compound P16

[0474]

[0475] Compound P16 was synthesized using a method substantially the same as the method for synthesizing Compound P1, except that the intermediate Compound P16-A was used instead of benzo-2,1,3-thiadiazole-4-boronic acid in the synthesis of Compound P1. 1 H NMR (CDCl 3 , 400 MHz) and MS / FAB to confirm the generated compounds.

[0476] C 28 H 16 N 2 O 4 S 2 : Calculated value 508.57, measured value 508.94

[0477] (7) Synthesis of Compound P20

[0478]

[0479] 1) Synthesis of intermediate compound P20-A

[0480] The intermediate compound P20-A was synthesized using a method substantially the same as the method for synthesizing compound P1, except that thiophen-2-ylboronic acid was used instead of benzo-2,1,3-thiadiazole-4-boronic acid in the synthesis of compound P1. 1 H NMR (CDCl 3 , 400 MHz) and MS / FAB to confirm the generated compounds.

[0481] C 18 H 10 S 4 : Calculated value 354.52 Measured value 354.64

[0482] 2) Synthesis of intermediate compound P20-B

[0483] The intermediate compound P20-A (3.28 g, 9.25 mmol) was dissolved in 50 mL of dehydrated tetrahydrofuran. 2.76 M n-butyl lithium (n-BuLi) hexane solution (3.4 mL, 9.25 mmol) was added dropwise at -78 ° C. within 5 minutes, and stirred at room temperature for 30 minutes. After the temperature was lowered to -78 ° C. again, iodine (2.5 g, 10 mmol) was added, stirred for 30 minutes, and warmed to room temperature. Water was added to terminate the reaction, and then three extractions were performed with ethyl acetate, and anhydrous magnesium sulfate was added to dry the extracted organic layer. In this case, the product obtained was separated and purified by silica gel tube chromatography (hexane: dichloromethane = 1: 1 (volume ratio) as eluent) to obtain 3.98 g of intermediate compound P20-B (yield: 71%). By 1 H NMR (CDCl 3 , 400 MHz) and MS / FAB to confirm the generated compounds.

[0484] C 18 H 8 I 2 S 4 : Calculated value 606.31, measured value 606.45

[0485] 3) Synthesis of compound P20

[0486] Compound P20 was synthesized using a method substantially the same as the method for synthesizing Compound P1, except that the intermediate compound P20-B was used instead of 2,6-dibromobenzo[1,2-b:4,5-b']dithiophene in the synthesis of Compound P1. 1 HNMR (CDCl 3 , 400 MHz) and MS / FAB to confirm the generated compounds.

[0487] C 30 H 14 N 4 S 6 : Calculated value 622.83, measured value 622.90

[0488] (8) Synthesis of Compound P25

[0489] Compound P25 was synthesized using a method substantially the same as that of compound P9, except that intermediate compound P20-B was used instead of 2,6-dibromobenzo[1,2-b:4,5-b']dithiophene in the synthesis of compound P9. 1 HNMR (CDCl 3 , 400 MHz) and MS / FAB to confirm the generated compounds.

[0490] C 34 H 18 N 4 S 4 : Calculated value 610.79, measured value 610.88

[0491] (9) Synthesis of Compound P30

[0492] Compound P30 was synthesized using essentially the same method as that for compound P20, except that furan-2-ylboronic acid was used instead of thiophen-2-ylboronic acid in the synthesis of compound P20. 1 H NMR (CDCl 3 , 400 MHz) and MS / FAB to confirm the generated compounds.

[0493] C 30 H 14 N 4 O 2 S 4 : Calculated value 590.71, measured value 590.79

[0494] (10) Synthesis of Compound P34

[0495]

[0496] Compound P34 was synthesized using a method substantially the same as the method for synthesizing compound P20, except that furan-2-ylboronic acid was used instead of thiophen-2-ylboronic acid in the synthesis of compound P20, and intermediate compound P34-A was used instead of benzo-2,1,3-thiadiazole-4-boronic acid in the synthesis of compound P20. 1 H NMR (CDCl 3 , 400 MHz) and MS / FAB to confirm the generated compounds.

[0497] C 36 H 16 N 6 O 2 S 2 : Calculated value 628.68, measured value 628.77

[0498] (11) Synthesis of Compound P37

[0499]

[0500] 1) Synthesis of intermediate compound P37-B

[0501] The intermediate compound P37-B was synthesized using a method substantially the same as the method for synthesizing compound P20, except that compound P1 was used instead of intermediate compound P20-A in the synthesis of compound P20, and bromine was used instead of iodine in the synthesis of compound P20. 1 H NMR (CDCl 3 , 400 MHz) and MS / FAB to confirm the generated compounds.

[0502] C 22 H 8 Br 2 N 4 S 4 : Calculated value 616.38 Measured value 616.44

[0503] 2) Synthesis of compound P37

[0504] Compound P37 was synthesized using a method substantially the same as the method for synthesizing compound P1, except that intermediate compound P37-B was used instead of 2,6-dibromobenzo[1,2-b:4,5-b']dithiophene in the synthesis of compound P1, and pyridin-4-ylboronic acid was used instead of benzo-2,1,3-thiadiazole-4-boronic acid in the synthesis of compound P1. 1 H NMR (CDCl 3 , 400 MHz) and MS / FAB to confirm the generated compounds.

[0505] C 32 H 16 N 6 S 4 : Calculated value 612.76, measured value 612.91

[0506] (12) Synthesis of Compound N5

[0507] 1,4,5,8-Naphthalenetetracarboxylic dianhydride (2.48 g, 9.25 mmol) and aniline (1.68 g, 18 mmol) were dissolved in dimethylformamide (DMF), heated, and stirred at 150° C. for 2 hours. The precipitate was filtered to synthesize compound N5. 1 H NMR (CDCl 3 , 400 MHz) and MS / FAB to confirm the generated compounds.

[0508] C 26 H 14 N 2 O 4 : Calculated value 418.41, measured value 418.52

[0509] (13) Synthesis of Compound N6

[0510] Compound N6 was synthesized using a method substantially the same as that of compound N5, except that p-toluidine was used instead of aniline in the synthesis of compound N5. 1 H NMR (CDCl 3 , 400 MHz) and MS / FAB to confirm the generated compounds.

[0511] C 28 H 18 N 2 O 4 : Calculated value 446.46, measured value 446.53

[0512] (14) Synthesis of Compound N8

[0513] Compound N8 was synthesized using a method substantially the same as that of compound N5, except that 4-chloroaniline was used instead of aniline in the synthesis of compound N5. 1 H NMR (CDCl 3 , 400 MHz) and MS / FAB to confirm the generated compounds.

[0514] C 28 H 12 Cl 2 N 2 O 4 : Calculated value 487.29, measured value 487.33

[0515] (15) Synthesis of Compound N15

[0516] Compound N15 was synthesized using a method substantially the same as the method for synthesizing Compound N5, except that 2,3,6,7-naphthalenetetracarboxylic dianhydride was used instead of 1,4,5,8-naphthalenetetracarboxylic dianhydride in the synthesis of Compound N5. 1 H NMR (CDCl 3 , 400 MHz) and MS / FAB to confirm the generated compounds.

[0517] C 26 H 14 N 2 O 4 : Calculated value 418.41, measured value 418.49

[0518] (16) Synthesis of Compound N16

[0519] Compound N16 was synthesized using a method substantially the same as the method for synthesizing compound N5, except that 2,3,6,7-naphthalenetetracarboxylic dianhydride was used instead of 1,4,5,8-naphthalenetetracarboxylic dianhydride in the synthesis of compound N5, and p-toluidine was used instead of aniline. 1H NMR (CDCl 3 , 400 MHz) and MS / FAB to confirm the generated compounds.

[0520] C 28 H 18 N 2 O 4 : Calculated value 446.46, measured value 446.54

[0521] Table 1 shows the compounds from the examples. 1 H NMR (CDCl 3 , 400MHz) and MS / FAB results.

[0522] Table 1

[0523]

[0524] Preparation of light receiving element

[0525] ITO glass substrate (Corning, 15Ω / cm 2 , ) are cut into a size of approximately 50 mm×50 mm×0.7 mm, each is ultrasonically cleaned with isopropyl alcohol and pure water for 5 minutes and ultraviolet irradiated for 30 minutes, respectively, and then exposed to ozone for cleaning to form (or provide) a first light receiving electrode in a vacuum deposition device.

[0526] First, 2-TNATA is vacuum deposited on the upper portion of the substrate to form (or provide) a A hole injection layer having a thickness of , and then a hole transport material N,N'-di(naphthalene-1-yl)-N,N'-diphenyl-benzidine (hereinafter referred to as NPB) as a hole transport compound is vacuum deposited to form (or provide) a hole injection layer having a thickness of The hole transport layer has a thickness of .

[0527] On the upper part of the hole transport layer, NPB is deposited with A green auxiliary layer (or red auxiliary layer) with a thickness of , and then a P type or species compound of the embodiment or comparative example is used to deposit a green auxiliary layer (or red auxiliary layer) with a thickness of A light absorbing layer having a thickness of . The N-type or species compound of the embodiment or comparative example is deposited on the upper portion of the light absorbing layer. Alq is deposited on the upper portion of the photoelectric conversion layer. 3 To form (or provide) and then depositing LiF (alkali metal halide) on the upper portion of the electron transport layer to form (or provide) a and vacuum depositing Al to form (or provide) an electron injection layer having a thickness of A LiF / Al electrode (second light receiving electrode) having a thickness of 500 Å was formed, thereby obtaining a light receiving element.

[0528] For the obtained element (light receiving element), the characteristics of the light receiving element are measured and evaluated. The characteristics are evaluated based on the external quantum efficiency (EQE) according to the wavelength of the light receiving element. The external quantum efficiency (EQE (%)) is measured by absorbing external light by wavelength and converting the light into current, wherein a xenon lamp is used as a light source. Specifically, the value of the external quantum efficiency is measured under green light (530nm) and red light (630nm). Meanwhile, the structure of the compound used for element manufacturing is as follows.

[0529]

[0530]

[0531] Evaluation of the characteristics of light receiving elements

[0532] Table 2 shows the light receiving elements each containing the above-mentioned Example Compound P1 and Example Compound N5, Example Compound P3 and Example Compound N5, Example Compound P9 and Example Compound N6, Example Compound P12 and Example Compound N6, Example Compound P13 and Example Compound N6, Example Compound P16 and Example Compound N8, Example Compound P20 and Example Compound N6, Example Compound P25 and Example Compound N6, Example Compound P30 and Example Compound N8, Example Compound P34 and Example Compound N15, and Example Compound P37 and Example Compound N16, respectively, and the light receiving elements each containing Comparative Example Compound SubPC and Comparative Example Compound C 60 (Fullerene) and comparative compound SubNC and comparative compound C 60 The external quantum efficiency (EQE (%)) and the maximum absorption wavelength (λ max (nm)) comparison. The larger the value of the external quantum efficiency, the greater the conversion of the energy applied to the element from the outside, and thus the light absorption efficiency of the element can be evaluated as improved. Meanwhile, the structures of the example compounds and comparative example compounds used for element manufacturing are as follows.

[0533]

[0534]

[0535]

[0536] Table 2

[0537] Light receiving element P type or kind of compound N type or kind of compound EQE(%) <![CDATA[λ max (nm)]]> Example 1 P1 N5 38 530 Example 2 P3 N5 35 525 Example 3 P9 N6 37 528 Example 4 P12 N6 34 526 Example 5 P13 N6 32 532 Example 6 P16 N8 36 531 Example 7 P20 N6 34 630 Example 8 P25 N6 35 625 Example 9 P30 N8 33 625 Example 10 P34 N15 32 630 Embodiment 11 P37 N16 36 632 Comparative Example 1 SubPC <![CDATA[C 60 ]]> 15 530 Comparative Example 2 SubNC <![CDATA[C 60 ]]> 10 650

[0538] Referring to Table 2, Examples 1 to 11 have values ​​of external quantum efficiency of 32% to 38%, and Comparative Examples 1 and 2 have values ​​of external quantum efficiency of 10% and 15%. The values ​​of the external quantum efficiency of Examples 1 to 11 are at least about 2.13 times, and as much as about 3.8 times, the values ​​of the external quantum efficiency of Comparative Examples 1 and 2. Without being bound by any particular theory, it is believed that the value of the larger external quantum efficiency indicates that the provided light is more converted into an electrical signal, and therefore it is believed that Examples 1 to 11 can each convert more light into an electrical signal compared to Comparative Examples 1 and 2, and can therefore be determined to have excellent or appropriate charge mobility and light absorption efficiency. Examples 1 to 6 each have a maximum absorption wavelength of about 530 nm, and Examples 7 to 11 each have a maximum absorption wavelength of about 630 nm. For example, Examples 1 to 6 can each absorb light in the wavelength range of green visible light, and Examples 7 to 11 can each absorb light in the wavelength range of green visible light and red visible light. The example compounds included in Examples 1 to 6 do not have a linker connecting the core to the electron-withdrawing part, and thus can absorb light in the green visible light wavelength range. Without being bound by any particular theory, it is believed that the linker connecting the core to the electron-withdrawing part can expand the absorption wavelength range by adjusting the conjugation length of the entire first compound, and accordingly, each of Examples 7 to 11 includes a linker connecting the core to the electron-withdrawing part, and Examples 7 to 11 can absorb visible light in the red wavelength range.

[0539] The polycyclic compound of one or more embodiments includes a tricyclic condensed ring containing two sulfur (S) atoms as ring atoms as a central structure (hereinafter referred to as a core). The core of the polycyclic compound of one or more embodiments includes two thiophenes (thiophene part) and a benzene ring (benzene part). In the core of the polycyclic compound of one or more embodiments, any carbon of the benzene ring is named as benzene carbon 1, and the carbon is named as benzene carbon 2 to benzene carbon 6 in a counterclockwise direction relative to benzene carbon 1, and the carbon is named as thiophene carbon 1 to thiophene carbon 4 in a counterclockwise direction relative to the sulfur atom of the thiophene. Benzene carbon 2 and benzene carbon 3 of the benzene ring are each fused to be the same as thiophene carbon 2 and thiophene carbon 1 of any thiophene, and benzene carbon 5 and benzene carbon 6 of the benzene ring are each fused to be the same as thiophene carbon 2 and thiophene carbon 1 of another thiophene. Specifically, in one or more embodiments, hydrogen atoms with relatively small volume are substituted on benzene carbon 1 and benzene carbon 4 of the benzene ring of the core, and thus the core can maintain a planar structure, improve the charge mobility of the polycyclic compound and improve light absorption efficiency. In one or more embodiments, the deposition stability and heat resistance of the polycyclic compound are excellent or appropriate, and accordingly, the thin film has excellent or appropriate purity when continuously deposited.

[0540] It can be seen that the compounds included in each of Comparative Examples 1 and 2 do not provide the characteristics of the polycyclic compounds of one or more embodiments of the present disclosure, and therefore have lower charge mobility and lower light absorption efficiency than those of the compounds of the examples when applied to an element.

[0541] The light receiving element of one or more embodiments may exhibit element characteristics such as relatively high light receiving efficiency and improved deposition quality.

[0542] The electronic device of one or more embodiments may exhibit improved light receiving efficiency.

[0543] The polycyclic compound of one or more embodiments may be included in a light receiving layer of a light receiving element, and may thus contribute to improving light receiving efficiency of the light receiving element and the electronic device.

[0544] As used herein, the terms "substantially," "about," or similar terms are used as terms of approximation and not as terms of degree, and are intended to take into account the inherent deviations in measured or calculated values ​​that one of ordinary skill in the art will recognize. "About," as used herein, includes the stated value, and means within the acceptable range of deviation of the particular value determined by one of ordinary skill in the art taking into account the measurement in question and the errors associated with the measurement of the particular quantity (i.e., the limitations of the measurement system). For example, "about" may mean within one or more standard deviations of the stated value, or within ±30%, ±20%, ±10%, or ±5% of the stated value.

[0545] Any numerical range described in this article is intended to include all sub-ranges of the same numerical precision within the range of the description. For example, the range of "1.0 to 10.0" is intended to include all sub-ranges between the minimum value 1.0 described and the maximum value 10.0 described (and including 1.0 and 10.0), that is, having a minimum value equal to or greater than 1.0 and a maximum value equal to or less than 10.0, such as, for example, 2.4 to 7.6. Any maximum numerical limit described in this article is intended to include all lower numerical limits included therein and any minimum numerical limit described in this specification is intended to include all higher numerical limits included therein. Accordingly, the applicant reserves the right to modify this disclosure (including claims) to explicitly describe any sub-ranges included within the range explicitly described in this article.

[0546] The light-emitting element, light-receiving element, electronic device / equipment or any other related device / device or component according to the embodiments of the present disclosure described herein may be implemented using any appropriate hardware, firmware (e.g., a dedicated integrated circuit), software, or a combination of software, firmware, and hardware. For example, the various components of the device may be formed on an integrated circuit (IC) chip or on a separate IC chip. Further, the various components of the device may be implemented on a flexible printed circuit film, a tape carrier package (TCP), or a printed circuit board (PCB), or formed on a substrate. Further, the various components of the device may be processes or threads running on one or more processors in one or more computing devices, executing computer program instructions and interacting with other system components for performing the various functions described herein. The computer program instructions are stored in a memory, which may be implemented in a computing device using a standard storage device, such as, for example, a random access memory (RAM). The computer program instructions may also be stored in other non-temporary computer-readable media, such as, for example, a CD-ROM or a flash drive. Furthermore, those skilled in the art will recognize that the functionality of various computing devices may be combined or integrated into a single computing device, or the functionality of a dedicated computing device may be distributed across one or more other computing devices without departing from the scope of the embodiments of the present disclosure.

[0547] Although the present disclosure has been described with reference to one or more embodiments thereof, it will be understood that the present disclosure should not be limited to these embodiments, but one or more appropriate changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the present disclosure.

[0548] Accordingly, the technical scope of the present disclosure is not intended to be limited to the contents set forth in the detailed description of the present disclosure, but is intended to be defined by the claims and their equivalents.

Claims

1. A polycyclic compound represented by Formula 1: Formula 1 in, In formula 1, n1 and n2 are each independently an integer selected from 0 to 10, Ar1 and Ar2 are each independently a substituted or unsubstituted arylene group having 6 to 60 carbon atoms or a substituted or unsubstituted heteroarylene group having 2 to 60 carbon atoms, and Q1 and Q2 are each independently represented by any one selected from Formula Q-1 to Formula Q-7: Formula Q-1 Formula Q-2 Formula Q-3 Formula Q-4 Formula Q-5 Formula Q-6 Formula Q-7 In Formula Q-1 to Formula Q-7, n 101 、n 102 and n 104 are each independently an integer selected from 0 to 3, n 103 and n 110 are each independently an integer selected from 0 to 2, n 108 、n 109 and n 111 are each independently an integer selected from 0 to 5, X1 to X3 are each independently oxygen, sulfur, selenium or tellurium, R 101 To R 103 are each independently hydrogen, deuterium, halogen, cyano, nitro, substituted or unsubstituted alkyl having 1 to 30 carbon atoms, substituted or unsubstituted aryl having 6 to 30 carbon atoms, or substituted or unsubstituted heteroaryl having 2 to 30 carbon atoms, R 104 To R 112 are each independently hydrogen, deuterium, halogen, cyano, nitro, substituted or unsubstituted alkyl having 1 to 30 carbon atoms, substituted or unsubstituted aryl having 6 to 30 carbon atoms, or substituted or unsubstituted heteroaryl having 2 to 30 carbon atoms, and is the site of connection to Formula 1.

2. The polycyclic compound according to claim 1, wherein In formula 1, When Q1 and Q2 are each represented by the formula Q-1, Q1 and Q2 are each independently represented by any one selected from the formulas R-11 to R-19: Formula R-11 Formula R-12 Formula R-13 Formula R-14 Formula R-15 Formula R-16 Formula R-17 Formula R-18 Formula R-19 In formula R-11 to formula R-19, is the site of connection to Formula 1.

3. The polycyclic compound according to claim 1, wherein In formula 1, When Q1 and Q2 are each represented by the formula Q-2, Q1 and Q2 are each independently represented by any one selected from the formula R-21 to the formula R-24: Formula R-21 Formula R-22 Formula R-23 Formula R-24 In formula R-21 to formula R-24, is the site of connection to Formula 1.

4. The polycyclic compound according to claim 1, wherein In formula 1, When Q1 and Q2 are each represented by the formula Q-3, Q1 and Q2 are each independently represented by any one selected from the formulas R-31 to R-34: Formula R-31 Formula R-32 Formula R-33 Formula R-34 In formula R-31 to formula R-34, is the site of connection to Formula 1.

5. The polycyclic compound according to claim 1, wherein In formula 1, When Q1 and Q2 are each represented by the formula Q-4, then Q1 and Q2 are each independently represented by the formula R-41 or the formula R-42: Formula R-41 Formula R-42 In formula R-41 and formula R-42, is the site of connection to Formula 1.

6. The polycyclic compound according to claim 1, wherein In formula 1, When Q1 and Q2 are each represented by the formula Q-5, Q1 and Q2 are each independently represented by the formula R-51 or the formula R-52: Formula R-51 Formula R-52 In formula R-51 and formula R-52, is the site of connection to Formula 1.

7. The polycyclic compound according to claim 1, wherein In formula 1, When Q1 and Q2 are each represented by the formula Q-6, then Q1 and Q2 are each independently represented by the formula R-61, and When Q1 and Q2 are each represented by the formula Q-7, then Q1 and Q2 are each independently represented by the formula R-71: Formula R-61 Formula R-71 In formula R-61 and formula R-71, is the site of connection to Formula 1.

8. The polycyclic compound according to claim 1, wherein the polycyclic compound represented by Formula 1 is represented by any one selected from Formula A-1 to Formula A-5: Formula A-1 Formula A-2 Formula A-3 Formula A-4 Formula A-5 In Formula A-1 to Formula A-5, X4 and X5 are each independently oxygen, sulfur, selenium or tellurium, and Q1 and Q2 are each the same as defined in Formula 1.

9. The polycyclic compound according to claim 1, wherein the polycyclic compound represented by Formula 1 is represented by any one selected from Formula 1-1 to Formula 1-6: Formula 1-1 Formula 1-2 Formula 1-3 Formula 1-4 Formula 1-5 Formula 1-6 In Formula 1-1 to Formula 1-6, Q1 and Q2 are each the same as defined in Formula 1.

10. A light receiving element, comprising: a first light receiving electrode; a second light receiving electrode facing the first light receiving electrode; as well as A light-receiving layer is between the first light-receiving electrode and the second light-receiving electrode and includes the polycyclic compound according to any one of claims 1 to 9 as a first compound.

11. The light receiving element according to claim 10, wherein the light receiving layer further comprises a second compound represented by Formula 2: Formula 2 In formula 2, Cy1 is a substituted or unsubstituted aromatic hydrocarbon ring having 6 to 30 carbon atoms, A1 and A2 are each independently oxygen or NR 113 ,and R 113 is hydrogen, deuterium, halogen, 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 2 to 30 carbon atoms, or substituted or unsubstituted cycloalkyl having 3 to 30 carbon atoms. 12 . The light receiving element according to claim 11 , wherein the light receiving layer includes a light absorbing layer containing the first compound and a photoelectric conversion layer containing the second compound. 13 . The light receiving element according to claim 12 , wherein the photoelectric conversion layer is on the light absorbing layer.

14. The light receiving element according to claim 11, wherein the first compound represented by Formula 1 is represented by any one of the compounds selected from Compound Group 1, and the second compound represented by Formula 2 is represented by any one of the compounds selected from Compound Group 2: Compound Group 1 Compound Group 2 15. An electronic device comprising: basal layer; as well as a display element layer including a light emitting element and a light receiving element according to any one of claims 10 to 14 on the base layer, in: The light emitting element comprises: a first light-emitting electrode on the substrate layer; an emitting layer on the first light emitting electrode; and A second light emitting electrode is on the emitting layer.

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