- Synthesis of 2- and 4-substituted carbazole derivatives and correlation of substitution position with photophysical properties and device performances of host materials
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A synthetic method to synthesize 4-substituted carbazole derivative was developed to study the effect of substitution position of carbazole on photophysical properties and device performances of host materials. Two high triplet energy host materials with substituents at 2- and 4-positions of carbazole were synthesized by the new synthetic approach. Substitution of electron withdrawing group at 2-position was better than the substitution at 4-position to stabilize energy levels and to improve hole transport properties. However, high glass transition temperature and high quantum efficiency were obtained in the carbazole based host material with substituent at 4-position.
- Kim, Mounggon,Lee, Jun Yeob
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- Blue light emission of new anthracene derivatives produced using optimized side group link positions
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Using an anthracene chromophore as a core group and a phenyl carbazole chromophore as a side group, three new emitters of blue light, 2-DCPA, 3-DCPA and 4-DCPA, were synthesized. The three compounds differed with regard to the position of the carbazole linked to the core, with 2-DCPA and 4-DCPA using carbazole nodes and 3-DCPA using the lobe position. Density functional theory calculations were performed to determine which positions of the carbazole moiety had node characteristics and which had lobe characteristics. The PLmax values of 2-DCPA, 3-DCPA and 4-DCPA in the film state were in the blue region, at 453, 457, and 452 nm, respectively. Of these materials, 3-DCPA, i.e., that with the linkage to the lobe position, showed the highest efficiency, with a value of 2.91 cd/A, and EQE, with a value of 2.65%. In a doped device using CBP as a host material and 3-DCPA as a dopant, the ELmax emission was observed to be in the deep blue region, at 433 nm, and with a CIE value of (0.150, 0.068).
- Kang, Seokwoo,Jung, Hyocheol,Lee, Hayoon,Lee, Suji,Jung, Mina,Lee, Jaehyun,Chul Kim, Young,Park, Jongwook
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- Heterocyclic compounds for use in electronic devices
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The present invention relates to heterocyclic compounds and to electronic devices, especially organic electroluminescent devices, comprising these compounds.
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Page/Page column 201
(2021/03/24)
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- Method for synthesizing N-aryl carbazole compound by catalyzing reaction of carbazole with aryl hydrazine by using transition metal
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The invention relates to a method for synthesizing an N-aryl carbazole compound by catalyzing reaction of carbazole with aryl hydrazine through transition metal. According to the method, a transitionmetal salt is used as a catalyst, a carbazole compound and an aryl hydrazine compound are used as reaction substrates, the reaction substrates and an alkali compound are added into a solvent for a reaction for a certain period of time to obtain a reaction solution, and the reaction solution is separated and purified to obtain the N-aryl carbazole compound. According to the method, low-boiling-point acetonitrile is used as a reaction solvent, so post-reaction treatment is easy to carry out; oxygen in the air serves as an oxidizing agent, so reaction conditions are environmentally friendly and safe, cost is low, and excessive oxidation is avoided; an aryl hydrazine compound is used as an arylation reagent, and reaction byproducts only comprise water and nitrogen, so the method is environment-friendly and pollution-free; the transition metal salt is used as the catalyst, the activity of the transition metal salt is high, the use of equivalent noble metals is avoided, and synthesis cost isreduced; and generally speaking, the synthesis method is friendly to environment, simple in process, good in reaction selectivity and high in yield, and has a relatively strong industrial applicationprospect.
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Paragraph 0049-0052; 0099
(2020/12/14)
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- An electroluminescen compound and an electroluminescent device comprising the same
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The present invention relates to an organic light-emitting compound represented by chemical formula 1. An organic electroluminescent device comprising the organic light-emitting compound in the present invention has excellent power efficiency, light-emitting efficiency, and long life cycle because the present invention can be operated by a lower driving-voltage in comparison with a device comprising conventional phosphorescent host materials.
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Paragraph 0270; 0287-0291; 0616-0620
(2021/02/02)
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- Organic electroluminescent material and device thereof
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Disclosed are an organic electroluminescent material and a device thereof. The organic electroluminescent material adopts a series of new indolocarbazole compounds, and can be used as a main body material, a charge transport material and the like of an el
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Paragraph 0110; 0111-0113
(2020/05/14)
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- Deuterated organic compounds for organic light-emitting diode and organic light-emitting diode including the same
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The present invention relates to an organic light emitting compound represented by chemical formula A and an organic light emitting device comprising the same. The substituents Y, R1-R17, m, n, L1, and L2 are same as defined in detailed description of the present invention.
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Paragraph 0354; 0375-0379
(2020/04/30)
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- Deuterated organic compounds for organic light-emitting diode and organic light-emitting diode including the same
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The present invention relates to an organic electroluminescent compound represented by chemical formula A and an organic light emitting device comprising the same. Substituents Y, Ar2 , L3 , K, p and x are as defined in the description of the invention. [Chemical A] (by machine translation)
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Paragraph 0476; 0482-0486
(2020/12/15)
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- ORGANIC COMPOUND AND COMPOSITION AND ORGANIC OPTOELECTRONIC DEVICE AND DISPLAY DEVICE
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The present invention relates to an organic compound represented by chemical formula 1, a composition comprising the same, an organic optoelectronic device, and a display device. In the chemical formula 1, X^1, X^2, Ar^1, Ar^2, L^1 and R^1 to R^6 are as described in the specification. An embodiment provides the organic compound capable of implementing a high-efficiency and long-lived organic optoelectronic device.COPYRIGHT KIPO 2019
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Paragraph 0364-0369
(2019/04/30)
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- ORGANIC COMPOUND AND COMPOSITION AND ORGANIC OPTOELECTRONIC DEVICE AND DISPLAY DEVICE
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The present invention relates to: an organic compound expressed by a combination of chemical formula 1 and chemical formula 2; a composition comprising the same; an organic optoelectronic device; and a display apparatus. In the chemical formula 1 or the chemical formula 2, X^1, X^2, L^1, L^2, R^1, R^2, and R^3 to R^6 are as defined in the specification. An embodiment provides the organic compound capable of realizing the organic optoelectronic device having high-efficiency and a long lifespan.COPYRIGHT KIPO 2019
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Paragraph 0417-0421
(2019/05/18)
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- ORGANIC COMPOUND AND COMPOSITION AND ORGANIC OPTOELECTRONIC DEVICE AND DISPLAY DEVICE
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Disclosed are an organic compound represented by Chemical Formula 1, a composition including the same, an organic optoelectronic device, and a display device. In Chemical Formula 1, X1 to X3, Y1 to Y3, and R1 to R18 are the same as described in the detailed description.
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Paragraph 0170-0172
(2019/07/11)
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- Organic electro-luminescent compound and organic electro-luminescent device using same
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The invention provides an organic electro-luminescent compound and an organic electro-luminescent device using the same. The structural formula of the compound is as shown in formula I. The compound provided in the invention can be used as a hole injection layer material, a hole transfer layer material, a luminous layer material, an electron blocking layer material and a covering layer material, can lower drive voltage and improve efficiency, brightness, thermal stability, color purity and service life. Further, the organic electro-luminescent device manufactured with the organic compound hashigh efficiency and long service life.
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Paragraph 0171-0176
(2018/03/26)
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- Compound Containing Ring Linked Via Carbazole and Fluorene And Organic Electronic Element Using The Same, Terminal Thereof
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The present invention refers to carbazole ring coupled polyarylenic backbone containing organic compound and formed electrical component, its terminal number under public affairs substrate. (by machine translation)
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- Compound Containing Ring Linked Via Carbazole and Fluorene And Organic Electronic Element Using The Same, Terminal Thereof
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Provided in the present invention are a compound containing a ring formed by bonding carbazole and fluorine, an organic electric element using the same, and a terminal thereof. The compound of the present invention can act various roles in an organic electric element and a terminal. In addition, when being applied to an organic electric element and a terminal, the compound reduces a driving voltage of the element and increases light efficiency, service life, and stability of the element.
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- COMPOUND FOR ORGANIC ELECTROLUMINESCENT DEVICE AND ORGANIC ELECTROLUMINESCENT DEVICE COMPRISING THE SAME
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This invention provides a compound for an organic electroluminescent device and an organic electroluminescent device including the same. This invention provides a compound for an organic EL device, which may have high thermal stability, improved light emission efficiency and lifetime and hole transport capability. Further, when this compound is used as a hole transport layer material in contact with a light emitting layer, thereby increasing a triplet energy, ultimately improving efficiency of the organic EL device and lifetime.
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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 heterocyclic compound represented by chemical formula A, and an organic light-emitting device containing the same. The ring A, R11-R14, W, X, Y, and Z are the same as defined in the present specification. According to the present invention, the heterocyclic compound exhibits long lifespan and low voltage driving properties when used as a material for phosphorescent hosts.COPYRIGHT KIPO 2017
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Paragraph 0527-0532; 0585-0590
(2017/08/29)
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- ORGANIC COMPOUND AND ORGANIC OPTOELECTRIC DEVICE AND DISPLAY DEVICE
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The present invention relates to: an organic compound represented by chemical formula 1; an organic optoelectric device comprising the organic compound; and a display device. In the chemical formula 1, A, L^1 to L^3, and R^1 to R^9 are the same as defined in the specification. According to the present invention, the organic optoelectronic device having high efficiency and long lifespan properties can be implemented.COPYRIGHT KIPO 2017
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Paragraph 0150-0152
(2017/11/23)
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- ORGANIC COMPOUND AND COMPOSITION AND ORGANIC OPTOELECTRIC DEVICE AND DISPLAY DEVICE
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The present invention relates to an organic compound represented by chemical formula 1 and being capable of realizing an organic photoelectronic device having high efficiency and long lifespan, a composition for an organic photoelectronic device comprising the organic compound, an organic photoelectronic device applying the organic compound or the composition and a display device comprising the organic photoelectronic device. In the chemical formula 1, each substituent is the same as defined in the specification.COPYRIGHT KIPO 2017
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Paragraph 0418-0422
(2018/02/27)
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- An electroluminescent compound and an electroluminescent device comprising the same
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The present invention relates to an organic light emitting compound applied to an organic electroluminescent device. The organic light emitting compound is represented by chemical formula 1 or chemical formula 2. The organic electroluminescent device having excellent light emitting properties such as driving voltage, luminance, and long lifespan can be implemented in the case of using the organic light emitting compound as a host compound inside a light emitting layer.COPYRIGHT KIPO 2016
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Paragraph 0161; 0240-0242
(2016/10/10)
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- NOVEL COMPOUND FOR ORGANIC ELECTROLUMINESCENT DEVICE AND ORGANIC ELECTROLUMINESCENT DEVICE COMPRISING THE SAME
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Disclosed are a compound for an organic electroluminescent device and an organic electroluminescent device comprising the same. Accordingly, provided is the compound for an organic electroluminescent device, which is capable of being used as a host and a hole transfer material improving a light emitting efficiency of a phosphorescence emitting material by having excellent electrical stability and hole transfer ability, and having high triplet state energy. Also, the organic electroluminescent device is also provided.COPYRIGHT KIPO 2016
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Paragraph 0127-0129; 0363-0365
(2016/11/07)
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- COMPOUND FOR ORGANIC ELECTRONIC ELEMENT, ORGANIC ELECTRONIC ELEMENT USING THE SAME, AND AN ELECTRONIC DEVICE THEREOF
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Disclosed is a compound represented by chemical formula 1. Also, disclosed is an organic electronic element comprising a first electrode, a second electrode, and an organic layer between the first electrode and the second electrode, wherein the organic layer includes the compound represented by chemical formula 1. If the compound represented by chemical formula 1 is included in the organic layer, light emitting efficiency, stability, engineering life, etc. can be improved.(110) Substrate(120) Positive electrode(130) Hole-injection layer(140) Hole transport layer(141) Buffer layer(150) Light emitting layer(151) Light-emitting assisting layer(160) Electron transport layer(170) Electron injection layer(180) Negative electrodeCOPYRIGHT KIPO 2016
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- An electroluminescent compound and an electroluminescent device comprising the same
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The present invention relates to an organic light emitting compound used in an electroluminescent device. The electroluminescent compound is represented by the chemical formula 1, and has one or more substituents represented by the structural formula 1 or structural formula 2. The electroluminescent device may be realized with excellent light emitting properties such as a driving voltage, brightness, long lifespan, etc. when the electroluminescent compound is used as a phosphorescent host compound in a hole transporting function layer or a light emitting layer.COPYRIGHT KIPO 2016
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Paragraph 0356; 0360-0362
(2016/10/07)
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- NOVEL COMPOUND FOR ORGANIC ELECTROLUMINESCENT DEVICE AND ORGANIC ELECTROLUMINESCENT DEVICE COMPRISING THE SAME
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Disclosed are a compound for an organic electroluminescent device, and an organic electroluminescent device comprising the same. Accordingly, provided is a compound for an organic electroluminescent device, which can be used as a host and a hole transport material having excellent electrical stability and hole transporting capability and improving light emitting efficiency of a phosphorescent material by having a high triplet energy. An organic electroluminescent device is also provided. The compound for an organic electroluminescent device is represented by structural formula 1.COPYRIGHT KIPO 2016
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Paragraph 0100; 0103; 0133-0135
(2016/10/27)
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- An electroluminescent compound and an electroluminescent device comprising the same
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The present invention relates to an organic light emitting compound applied to an organic electroluminescent device. The organic light emitting compound is represented by chemical formula 1, and when being applied as a phosphorescent host compound in a light emitting layer, provides an organic light emitting device having excellent light emitting properties such as driving voltage, brightness, and long lifespan.
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Paragraph 0114; 0187-0189
(2016/10/08)
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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 provides a novel compound capable of improving light emitting efficiency, stability, and lifespan of an element, an organic electronic element using the same, and an electronic device thereof. The organic electronic element comprises a first electrode, a second electrode, and an organic matter layer located between the first electrode and the second electrode, wherein the organic matter layer comprises the compound.(150) Light emitting layer(141) Buffer layer(140) Hole transport layer(130) Hole injection layer(120) Positive electrode(110) Substrate(170) Electron injection layer(160) Electron transport layer(151) Auxiliary light emitting layer(180) Negative electrodeCOPYRIGHT KIPO 2015
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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 provides a novel compound which can improve light emitting efficiency, stability, and durability of an element, an organic electronic element, and an electronic device thereof. The organic electronic element comprises: a first electrode; a second electrode; and an organic layer located between the first electrode and the second electrode, wherein the compound is included in the organic layer.(110) Substrate(120) Positive electrode(130) Hole injection layer(140) Hole transfer layer(141) Buffer layer(150) Light emitting layer(151) Light-emitting assisting layer(160) Electron transfer layer(170) Electron injection layer(180) Negative electrodeCOPYRIGHT KIPO 2015
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- NOVEL COMPOUND FOR ORGANIC ELECTROLUMINESCENT DEVICE AND ORGANIC ELECTROLUMINESCENT DEVICE COMPRISING THE SAME
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The present invention relates to a compound for an organic electroluminescent device represented by structure formula 1 or structural formula 2, and the organic electroluminescent device including the same. The present invention is able to provide the compound for an organic electroluminescent device capable of being used as hosts, hole transferring materials, and electron transferring materials, and increasing the luminous efficiency of phosphorescence light emitting materials by having excellent electrical stability and electron and hole transport ability and by exhibiting high triplet state energy; and the organic electroluminescent device.
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Paragraph 0107; 0116-0119
(2020/03/03)
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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 novel heterocyclic compound and an organic light emitting device using the same. The organic light emitting device has a structure which arranges an organic thin film between two electrodes, wherein the organic thin film may comprise a single layer or multi layers as necessary. In one embodiment of the present specification, provided is a compound of chemical formula 1.COPYRIGHT KIPO 2016
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Paragraph 0376-0379
(2016/10/07)
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