- COMPOUND, COMPOSITION, ORGANIC OPTOELECTRONIC DIODE, AND DISPLAY DEVICE
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Disclosed are a compound represented by Chemical Formula 1, a composition comprising the same, an organic optoelectronic diode, and a display device. Chemical formula 1 is as defined in the specification.
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Paragraph 0153-0156
(2021/05/07)
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- COMPOUND FOR ORGANIC OPTOELECTRONIC DEVICE, COMPOSITION FOR ORGANIC OPTOELECTRONIC DEVICE, ORGANIC OPTOELECTRONIC DEVICE, AND DISPLAY DEVICE
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The present invention is related to a first compound for an organic optoelectronic device represented by Chemical Formula 1, a composition for an organic optoelectronic device including the same, an organic optoelectronic device, and a display device. In Chemical Formula 1, definitions of each substituent are the same as defined in the specification.
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Paragraph 03214; 0326-0327
(2021/06/22)
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- HETEROCYCLIC COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE INCLUDING THE SAME
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A heterocyclic compound represented by Formula 1: and an organic light-emitting device including the same are provided.
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- Compound, display panel and display device
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The present invention relates to the technical field of organic light emitting diodes (OLED), and provides a compound having a thermally activated delayed fluorescence (TADF) property. The structure of the compound is shown in a formula 1, wherein Ar represents C6-C20 aryl or C5-C20 heteroaryl; D and D represent electron donating groups; A and A represent electron accepting groups; m,n, p and q are separately and independently selected from 1,2,3; D, D, A and A are separately connected to a benzene ring connected with the Ar; D and D are ones separately and independently selected from C1-C20 alkyl, C3-C20 cycloalkyl, C1-C20 alkoxy, C3-C20 heterocyclyl, C6-C40 aryl, C4-C40 heteroaryl, C10-C60 fused heteroaryl, C10-C60 fused heteroaryl, carbazole groups, diphenylamine groups and acridinyl groups; and A and A are separately and independently selected from nitrogen-containing heterocyclic substituents, cyano-containing substituents, carbonyl-containingsubstituents, sulfone substituents, and phosphorus-containing oxygen-containing substituents. The compound provided by the invention is suitable for being used as luminescent host or guest materials of OLED. The invention also provides a display panel and a display device comprising the compound.
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- ORGANIC OPTOELECTRONIC DEVICE AND DISPLAY DEVICE
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An organic optoelectronic device and a display device including the organic optoelectronic device, the organic optoelectronic device including an anode and a cathode facing each other, a light emitting layer between the anode and the cathode, a hole transport layer between the anode and the light emitting layer, and a hole transport auxiliary layer between the light emitting layer and the hole transport layer, wherein the light emitting layer includes a first compound represented by Chemical Formula 1 and a second compound represented by Chemical Formula 2, and the hole transport auxiliary layer includes a third compound represented by Chemical Formula 3,
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Paragraph 0298; 0303; 0304; 0312; 0315; 0316
(2020/05/29)
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- HETEROCYCLIC COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE INCLUDING THE SAME
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A heterocyclic compound represented by Formula 1 and an organic light-emitting device the heterocyclic compound represented by Formula 1: wherein, in Formula 1, Cz1 is a group represented by Formula 1A, Het1 is a group represented by Formula 1B, wherein, R1 to R10, R20, R30, R40, R50, and b10 to b50 are each independently the same as described in the detailed description of the specification.
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Paragraph 0324-0326; 0344-0346
(2020/07/14)
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- Organic light-emitting device
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The present invention relates to an organic light emitting device having excellent electrical properties and thermal stability, which comprises: a first electrode; a second electrode; and an organic layer disposed between the first and second electrodes,
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- Anthraquinone organic electroluminescent material and application thereof
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The invention discloses an anthraquinone general formula compound and application thereof. The general formula compound is shown in a formula (1) in the specification, and in the formula (1), n is aninteger of 1-2; when n is 2, two L groups in the formula (1) can be different, and two Ar groups in the formula (1) can be different; X1-X8 are independently selected from C, CR or N, when any one ortwo of X1-X8 represent C, the C atom is connected with L, and R is selected from a hydrogen atom, alkyl of C1-C10, substituted or unsubstituted C6-C30 aryl, or substituted or unsubstituted C3-C30 heteroaryl; the Ar is selected from substituted or unsubstituted C6-C30 aryl, or substituted or unsubstituted C3-C30 heteroaryl; and the L is selected from single bonds, substituted or unsubstituted C6-C20 arylidene, or substituted or unsubstituted C3-C20 heterocyclic arylidene. The compound shows excellent device performance and stability when serving as a main body material in a light-emitting layerof an organic light-emitting device (OLED), and meanwhile the OLED adopting the general formula compound is within the scope of right protection.
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- Diazcarbazole derivative, preparation method thereof, and application of diazcarbazole derivative as electroluminescent material
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The invention belongs to the technical field of organic photoelectric material application, and particularly relates to a diazcarbazole derivative with different relative positions of N atoms and an application of the diazcarbazole derivative as an electroluminescent material. Carbazole-like group diazcarbazole with an electron-deficient property is introduced, and a triplet state of the materialcan be realized and the molecular orbital energy level can be adjustable through bonding with different groups, so that efficient recombination of carriers in an organic electroluminescent device is achieved fundamentally, an efficient and energy-saving organic light emitting diode (OLED) device is obtained, and the diazcarbazole derivative can be widely applied to the field of organic electroluminescence. The structural general formula of the material is as shown in the formula I, wherein a same diazcarbazole (diazcarbazole with N positions of 1,8, 1,7, 1,6, 2,7, 2,6, 2,5, 3,6, 3,5, and 4,5)is taken as a core, the L group is a bridging group for bonding the diazlocarbazole, the L group is selected from aromatic groups or aromatic heterocyclic groups containing heteroatoms, m and n are the numbers of the diazicarbazole, and the sum of m and n is greater than or equal to 1.
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- HETERO-CYCLIC COMPOUND AND ORGANIC LIGHT EMITTING DEVICE USING THE SAME
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The present invention relates to a heterocyclic compound, capable of improving life characteristics of a device by thermal stability, and to an organic light emitting device using the same. The heterocyclic compound is represented by chemical formula 1. In chemical formula 1, L is a substituted or unsubstituted C_6-60 polycyclic arylene group, or a substituted or unsubstituted C_2-60 heteroarylene group, and m and n are each independently an integer ranging from 0 to 4.COPYRIGHT KIPO 2019
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- COMPOUND FOR ORGANIC ELECTRONIC ELEMENT, ORGANIC ELECTRONIC ELEMENT USING THE SAME, AND A ELECTRONIC DEVICE THEREOF
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The present invention relates to a compound for an organic electronic element including a benzo fluorine compound and a derivative thereof, an organic electronic element utilizing the same, and an electronic device thereof. According to the present invention, the light emitting efficiency, the color purity, and the lifetime of the organic electronic element can be improved. [Reference numerals] (401) Substrate;(402) Anode;(404) Hole transport layer;(405) Light emitting layer;(406) Electron transport layer;(408) Cathode
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Paragraph 0084; 0087; 0127-0129
(2018/10/24)
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- Compounds for use in light emitting devices
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Optionally substituted ambipolar naphthalene compounds useful in light-emitting devices are described, including without limitation 9-(3-(10-(3-(1-phenyl-1H-benzo[d]imidazol-2-yl)phenyl)anthracen-9-yl)phenyl)-9H-carbazole and 9-(3-(10-(3-(1-phenyl-1H-benzo[d]imidazol-2-yl)phenyl)anthracen-9-yl)phenyl)-9H-carbazole.
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- Novel bemzimidazole-carbazole derivative, preparation method thereof and organic light-emitting diode using the same
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The present invention refers to of organic light-emitting device having phosphorescent blue emitting materials and can be used for high-benzimidazol-carbazole derivatives and their manufacturing method relates to, novel benzimidazole-carbazole derivatives the present invention according to an electronic it is a donator cover and antiviral electronic it is a receptor benzimidazole the combustion furnace through a blue of phosphors-emitting diodes for emitting sufficient energy to corresponding to blue has exhibits a good therefor, thermal stability and conformational invention have superior stability to in producing a thin film for an organic light-emitting device, of the physical properties of the device even at high temperatures and display good as a material of a luminescent layer without changing them since performance is kept at a, using the same useful as emitting materials for an organic light-emitting device can be used. (by machine translation)
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- A blue organic light emitting diode material (by machine translation)
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An organic light-emitting diode, which is characterized in that the organic light-emitting diode is composed of a cathode, an anode and a cathode and an anode of the organic semiconductor layer. In organic semiconductor light-emitting layer containing an organic semiconductor compound, the formula is: Is characterized in that the phenantrho imidazole is connected with the benzene ring of the fusion ring is connected with a fragrant mixed, help to improve the charge injection and the light-emitting stability, high stability, high efficiency and long life of the light-emitting performance. (by machine translation)
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- Novel heterocyclic compounds and organic light-emitting diode including the same
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The present invention relates to a novel heterocyclic compound having long lifespan properties, low voltage driving properties, and excellent light emitting efficiency, and an organic light emitting device comprising the same and, more specifically, to an organic light emitting compound represented by any one selected from chemical formula A and chemical formula B, and an organic light emitting device comprising the same. In chemical formulas, each substituent of A1 to A4, Randprime;, Randprime;andprime;, X, Y, and Z, and n are the same as defined in the detailed description of the invention.COPYRIGHT KIPO 2016
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Paragraph 0506-0511; 0543-0549
(2016/10/10)
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- HETERO-CYCLIC COMPOUND AND ORGANIC LIGHT EMITTING DEVICE USING THE SAME
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The present invention provides: a heterocyclic compound capable of greatly improving lifespan, efficiency, electrochemical stability and thermal stability of an organic light emitting device; and an organic light emitting device where the heterocyclic compound is contained in an organic compound layer. In addition, the heterocyclic compound is represented by chemical formula 1.COPYRIGHT KIPO 2016
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Paragraph 0111; 0112; 0113
(2016/10/09)
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- Polycarbazole compound having a specific structure, using the same and a charge transport material and an organic electroluminescence element
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PROBLEM TO BE SOLVED: To obtain an organic electroluminescent element having excellent luminous efficiency and durability.SOLUTION: The organic electroluminescent element comprises a compound represented by general formula (1) (wherein R-Rand R-Rare each independently a hydrogen atom, alkyl which may contain a substituent Z, aryl which may contain a substituent Z, heteroaryl which may contain a substituent Z, alkoxy which may contain a substituent Z, substituent-containing amino, substituent-containing silyl, cyano or fluorine atom; Ris carbazolyl which may contain a substituent Z, fluorine atom, cyano or perfluoroalkyl; with proviso that when Ris carbazolyl which may contain a substituent Z, Rdoes not represent carbazolyl; substituent Z is alkyl, alkenyl, aryl, heteroaryl, alkoxy, phenoxy, a fluorine atom, silyl, amino, cyano or a group obtained by combining the groups and a plurality of substituents Z may be mutually bonded to form an aryl ring).
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- ORGANIC COMPOUNDS AND ORGANIC ELECTRO LUMINESCENCE DEVICE COMPRISING THE SAME
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The present invention relates to novel compounds and an organic electroluminescent device comprising the same. According to the present invention, the compounds can improve light emitting efficiency, driving voltage, life span, etc. of the organic electroluminescent device by being used in an organic layer, desirably a light emitting layer of the organic electroluminescent device. The compounds are represented by chemical formula 1.COPYRIGHT KIPO 2015
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Paragraph 0120-0122
(2016/10/10)
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- COMPOUND, ORGANIC LiGHT EMITTING DIODE INCLUDING THE SAME AND DISPLAY INCLUDING THE ORGANIC LiGHT EMITTING DIODE
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The purpose of the present invention is to provide a compound realizing an organic photoelectronic diode having properties such as high efficiency, long life, etc. The present invention relates to a compound, an organic light emitting diode including the same, and a display device including the organic light emitting diode. The compound is represented by chemical formula 1.COPYRIGHT KIPO 2015
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Paragraph 0141-0143
(2016/12/16)
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- CONDENSED CYCLIC COMPOUND, AND ORGANIC LIGHT EMITTING DEVICE INCLUDING THE SAME
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Disclosed are a condensed ring compound and an organic light emitting device comprising the condensed ring compound. The organic light emitting device comprises: a first electrode; a second electrode facing the first electrode; and an organic layer interposed between the first electrode and the second electrode, wherein the organic layer comprises the condensed ring compound.COPYRIGHT KIPO 2015
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Paragraph 1185
(2016/10/08)
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- Synthesis of pyrimidine-cored host materials bearing phenylcarbazole for efficient yellow phosphorescent devices: Effect of linkage position
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Two isomeric host materials were synthesized and their photophysical properties and device performances were investigated. In particular, para-substituted pPDPC exhibited the most intense efficiency regardless of the low triplet energy compared to that of meta-substituted mPDPC. The EQE of the pPDPC device reached as high as 22.3% with a yellow color coordinate of (0.49, 0.50). This journal is
- Jang, Hong-Gu,Song, Wook,Lee, Jun Yeob,Hwang, Seok-Ho
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p. 17030 - 17033
(2015/03/18)
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- SUBSTITUTED BIARYL COMPOUNDS FOR LIGHT-EMITTING DEVICES
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Some substituted biaryl ring systems may be useful in light-emitting devices, such as those comprising a light-emitting diode. For example, substituted bipyridinyl or substituted phenylpyridinyl may be useful in these devices. The substituted biaryl ring system may have at least two different substituents, including one on each ring on the biaryl system. The first substituent may include optionally substituted carbazolyl, optionally substituted diphenylamine, optionally substituted diphenylaminophenyl, and optionally substituted carbazolylphenyl. The second substituent may include optionally substituted benzimidazol-2-yl, optionally substituted benzoxazol-2-yl, and an optionally substituted benzothiazol-2-yl.
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- Three-carbazole-armed host materials with various cores for RGB phosphorescent organic light-emitting diodes
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A series of three-carbazole-armed host materials containing various arylene cores, like benzene (1,3,5-tris(3-(carbazol-9-yl)phenyl)-benzene, TCPB), pyridine (2,4,6-tris(3-(carbazol-9-yl)phenyl)-pyridine, TCPY), and pyrimidine (2,4,6-tris(3-(carbazol-9-yl)phenyl)-pyrimidine, TCPM), were developed for red, green, and blue phosphorescent organic light-emitting diodes (OLEDs). An intramolecular charge transfer was observed for TCPY and TCPM with heterocyclic cores of pyridine and pyrimidine, giving bathochromic shifts in the photoluminescent spectrum and reduced energy band gaps in comparison with TCPB with a benzene core. In addition, lower energy singlet and triplet excited states, reduced lowest unoccupied molecular orbital (LUMO) energy level, smaller singlet-triplet exchange energy (ΔEST), and improved bipolarity were also achieved with introducing heterocycles of pyridine and pyrimidine instead of benzene. In contrast to the slightly decreased triplet energy (ET), a significantly decreased ΔEST was achieved by introducing heterocycles of pyridine and pyrimidine as the core, and the more nitrogen atoms in the central heterocycle, the smaller ΔE ST is achieved. Reduced driving voltages were achieved for the green and red phosphorescent OLEDs by utilizing TCPY and TCPM as the host due to their decreased ΔEST and lower-lying LUMO energy level, proving that more carriers must be injected into the emitting layer through the host molecules rather than direct carrier trapping by the dopant. Moreover, improved efficiency and suppressed efficiency roll-off were also achieved for the green and red phosphorescent OLEDs based on TCPY and TCPM due to their improved bipolarity and thus improved carrier balance.
- Su, Shi-Jian,Cai, Chao,Kido, Junji
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p. 3447 - 3456
(2012/06/04)
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- RGB phosphorescent organic light-emitting diodes by using host materials with heterocyclic cores: Effect of nitrogen atom orientations
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A series of host materials 1 - 7 containing various heterocyclic cores, like pyridine, pyrimidine, and pyrazine, were developed for RGB phosphorescent organic light-emitting diodes (OLEDs). Their energy levels can be tuned by the change of heterocyclic cores and their nitrogen atom orientations, and decrease of singlet - triplet exchange energy (ΔEST) was achieved with introducing one or two nitrogen atoms into the central arylene; this is also consistent with density functional theory calculations. Their carrier mobilities can also be tuned by the choice of heterocyclic cores, giving improved bipolarity compared with that without any heterocyclic cores. Due to the high triplet energy level of the developed host materials, well confinement of triplet excitons of blue emitter iridium(III) bis(4,6-(difluorophenyl) pyridinato-N,C2′) picolinate (FIrpic) was achieved except for 7 due to its low ET. In contrast, triplet energy can be well confined on green emitter fac-tris(2-phenylpyridine) iridium (Ir(PPy)3) and red emitter tris(1-phenylisoquinolinolato-C2,N)iridium(III) (Ir(piq)3) for all the hosts, giving comparable lifetime (τ), photoluminescent quantum efficiency (ηPL), and radiative and nonradiative rate constants (kr and knr). Highly efficient blue and green phosphorescent OLEDs were achieved for 2, exhibiting one of the highest ever efficiencies to date, especially at much brighter luminance for lighting applications. In comparison, the highest efficiencies hitherto were achieved for the red phosphorescent OLED based on 6, which can be attributed to its lower-lying LUMO level and the smallest ΔEST, giving improved electron injection and carrier balance. Different from the blue and green phosphorescent OLEDs based on FIrpic and Ir(PPy)3, the host materials with lower-lying LUMO levels seem to be better hosts for a red emitter Ir(piq)3, achieving improved efficiency and reduced efficiency roll-off at high current density.
- Su, Shi-Jian,Cai, Chao,Kido, Junji
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p. 274 - 284
(2011/09/20)
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- MATERIALS WITH AZA-DIBENZOTHIOPHENE OR AZA-DIBENZOFURAN CORE FOR PHOLED
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A new class of compounds containing aza-dibenzothiophene or aza-dibenzofuran are provided. The compounds may be used in organic light emitting devices giving improved stability, improved efficiency, long lifetime and low operational voltage. In particular, the compounds may be used as the host material of an emissive layer having a host and an emissive dopant, or as a material in an enhancement layer.
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Page/Page column 121
(2010/08/07)
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- ORGANIC COMPOUND, CHARGE-TRANSPORTING MATERIAL, AND ORGANIC ELECTROLUMINESCENT ELEMENT
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An organic compound and a charge-transporting material which are excellent in both a hole-transporting property and an electron-transporting property and have excellent electrical oxidation/reduction durability and a high triplet excitation level are provided, and an organic electroluminescent device which uses this organic compound and has high luminous efficiency and high driving stability and long lifetime is provided. One molecule of the organic compound has two or more partial structures represented by the following Formula (I): wherein Cz denotes a carbazolyl group; Z denotes a direct link or an optional linking group; N atoms present in one molecule do not conjugate with each other excepting between N atoms in the same B1 rings; one molecule contains only one pyridine ring; one molecule contains a plurality of Q's; and Q denotes a direct link connected to G present in a moiety represented by the following Formula (II): wherein B1 ring is a six-membered aromatic heterocycle containing n N atoms as a hetero atom; n is an integer of 1 to 3; when G is linked to Q, the G denotes a direct link or an optional linking group which links to Q; when G is not linked to Q, the G denotes an aromatic hydrocarbon group; G's are bound to C atoms in ortho-position and para-position with respect to the N atom in B1 ring; and m is an integer of 3 to 5.
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Page/Page column 83
(2008/06/13)
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