- COMPOUND FOR ORGANIC ELECTRONIC ELEMENT, ORGANIC ELECTRONIC ELEMENT USING THE SAME, AND AN ELECTRONIC DEVICE THEREOF
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The present invention provides the compound represented by Formula 1, an organic electric element comprising a first electrode, a second electrode, and an organic material layer formed between the first electrode and the second electrode, and electronic device thereof, and by comprising the compound represented by Formula 1 in the organic material layer, the driving voltage of the organic electronic device can be lowered, and the luminous efficiency and life time of the organic electronic device can be improved.
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Paragraph 0157-0158
(2020/08/05)
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- Novel combination of host compound and dopant compound and organic electroluminescence device comprising same
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The present invention relates to a specific combination of a dopant compound and a host compound, and an organic electroluminescent device comprising the same. The organic electroluminescent device ofthe present invention emits yellow-green light; lowers the driving voltage of the device by improving the current characteristic of the device; and improves power efficiency and operational lifespan.
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Paragraph 0139-0142; 0145-0147
(2019/12/10)
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- COMPOUND FOR ORGANIC ELECTRONIC ELEMENT, ORGANIC ELECTRONIC ELEMENT USING THE SAME, AND AN ELECTRONIC DEVICE THEREOF
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The present invention refers to emitting efficiency, stability and life the novel compound and organic electrical component, a electronic device number [...] substrate. (by machine translation)
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Paragraph 0297; 0304-0306
(2018/06/20)
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- Organic electroluminescent element and material for organic electroluminescent elements
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An organic electroluminescence device includes: a cathode; an anode; and an organic thin-film layer having one or more layers and provided between the anode and the cathode, in which the organic layer includes an emitting layer. The emitting layer includes a first host material, a second host material and a phosphorescent dopant material. The first host material is a compound represented by a formula (1A). The second host material is a compound represented by a formula (2A).
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- Organic Light Emitting Display Device
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The present invention provides an organic light emitting device capable of reducing a driving voltage and improving external quantum efficiency and lifespan. The organic light emitting device according to an embodiment of the present invention includes: a first light emitting part disposed between a positive electrode and a negative electrode, and having a first light emitting layer and a first electron transport layer; and a second light emitting part disposed on the first light emitting part, and having a second light emitting layer and a second electron transport layer, wherein at least one from the first light emitting layer and the second light emitting layer has a compound expressed by chemical formula 1, and at least one from the first electron transport layer and the second electron transport layer has a compound expressed by chemical formula 2 or chemical formula 3.
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Paragraph 0142-0144
(2017/03/22)
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- Light-emitting element material and light-emitting element
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Disclosed is a light-emitting device material which comprises a compound having a specific structure of a carbazole skeleton and can realize a light-emitting device having high light-emitting efficiency and durability. Also disclosed is a light-emitting device comprising the light-emitting device material.
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- ORGANIC ELECTRONIC ELEMENT USING A COMPOUND FOR ORGANIC ELECTRONIC ELEMENT, AND AN ELECTRONIC DEVICE THEREOF
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Provided in the present invention is an organic electric element comprising a first electrode, a second electrode, and an organic layer located between the first electrode and the second electrode, and including at least one light emitting layer. A dopant
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Paragraph 0204-0208
(2016/10/10)
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- COMBINATION OF A HOST COMPOUND AND A DOPANT COMPOUND AND ORGANIC ELECTROLUMINESCENT DEVICE COMPRISING THE SAME
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The present disclosure relates to a specific combination of a dopant compound and a host compound, and an organic electroluminescent device comprising the combination. By comprising the combination of the present disclosure, the organic electroluminescent device showing excellence in luminous efficiency, power efficiency, and color purity, low driving voltage, and good lifespan can be provided.
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Paragraph 169-171
(2015/05/05)
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- A NOVEL COMBINATION OF A HOST COMPOUND AND A DOPANT COMPOUND AND AN ORGANIC ELECTROLUMINESCENCE DEVICE COMPRISING THE SAME
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The present invention relates to a specific combination of a dopant compound and a host compound, and an organic electroluminescent device comprising the same. The organic electroluminescent device of the present invention provides the advantages of excellent luminous characteristics with lower driving voltages, compared to devices using conventional luminescent materials.
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- COMPOUND FOR ORGANIC OPTOELECTRONIC DEVICE, ORGANIC LIGHT EMITTING DIODE INCLUDING THE SAME AND DISPLAY INCLUDING THE ORGANIC LIGHT EMITTING DIODE
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A compound for an organic optoelectronic device and an organic photoelectric device including the same are provided. A compound for an organic optoelectronic device represented by Chemical Formula 1 is provided to fabricate an organic photoelectric device having excellent electrochemical and thermal stability and life-span characteristics, and high luminous efficiency at a low driving voltage.
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Paragraph 0197-0201
(2013/03/26)
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- BICARBAZOLE COMPOUNDS FOR OLEDS
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Novel organic compounds comprising a bicarbazole core are provided. In particular, the compounds has a 3,3'-bicarbazole core substituted at the 9-position with a triazine or pyrimidine. The compounds may be used in organic light emitting devices to provide devices having improved efficiency and improved lifetime.
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Page/Page column 142-143
(2012/03/11)
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- A dicarbazole-triazine hybrid bipolar host material for highly efficient green phosphorescent OLEDs
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A novel bipolar host material 9-(4,6-diphenyl-1,3,5-triazin-2-yl)-9′- phenyl-3,3′-bicarbazole (CzT) comprising a dicarbazole donor linking to an electron deficient 1,3,5-triazine acceptor was synthesized and characterized. The molecular design of CzT allows the spatial separation of HOMO and LUMO on the donor and acceptor moieties, respectively, giving sufficient triplet energy (2.67 eV) together with promising physical properties and morphological stability (Tg = 134°C). This tailor-made material was used as a host for an efficient yellowish-green iridium complex, bis(o-tolylpyrimidinato- N,C2′)Ir(iii)acetylacetonate [(TPm)2Ir(acac)]; the as-fabricated phosphorescent OLEDs (PHOLEDs) demonstrated high performance, with maximum efficiencies of 20.0% (75.7 cd A-1 and 71.3 lm W -1) and 20.1% (76.3 cd A-1 and 72.7 lm W-1) achieved in trilayer and bilayer device architectures, respectively. The efficiency of the trilayer device can sustain ~20% over a wide brightness range from 102 to 103 cd m-2 due to the more effective confinement of emissive excitons within the emitting layer.
- Chang, Chih-Hao,Kuo, Ming-Cheng,Lin, Wei-Chieh,Chen, Yu-Ting,Wong, Ken-Tsung,Chou, Shu-Hua,Mondal, Ejabul,Kwong, Raymond C.,Xia, Sean,Nakagawa, Tetsuya,Adachi, Chihaya
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experimental part
p. 3832 - 3838
(2012/06/01)
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