1210469-11-6Relevant articles and documents
Organic compound, and organic electroluminescent device and electronic device using the same
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Paragraph 0129-0131, (2021/11/10)
The present invention relates to an organic compound and an organic electroluminescent device and an electronic device using the same, wherein the organic compound has a structure formed by combining an indole carbazole-based planar conjugated group in a fused manner and a dibenzofuran substituted with an aryl group. The structure has higher hole mobility and higher energy transfer efficiency, and is suitable for being used as a light-emitting host material in an organic electroluminescent device. When the organic compound is used as a light emitting host material in an organic electroluminescent device, the light emitting efficiency and the service life of the device can be effectively improved, and the working voltage is reduced.
ORGANIC MIXTURE AND APPLICATION THEREOF IN ORGANIC ELECTRONIC DEVICES
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Paragraph 0228; 0230, (2020/11/27)
The present invention relates to an organic mixture and an application thereof in organic electronic devices. The organic mixture comprises a spirofluorene organic compound containing a fused heterocyclic ring and an aromatic fused heterocyclic organic compound containing an electron-donating group. A combination of the two materials may be used as a host material of a phosphorescent organic light-emitting diode (OLED), which may use the energy of excitons and balance the charge transport to the greatest extent and which may effectively reduce the concentration of excitons and the operating voltage of a corresponding device, thereby effectively improving the efficiency and service life of the related electronic device in order to provide an effective solution for improving the overall performance of an organic electronic device.
Hole transport material and organic electroluminescent device using same
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Paragraph 0051-0056, (2021/01/04)
The invention discloses a hole transport material and an organic electroluminescent device using the same, which relate to the technical field of organic electroluminescence. The structural formula isshown in the specification. The hole transport material not only can improve the carrier transport efficiency, but also can improve the luminous efficiency of the device. Compared with a contrast example, the prepared organic electroluminescent device has the advantages that the voltage is reduced by 25-35%, the luminous efficiency is improved by nearly one time, and the service life is greatly prolonged, so that the driving voltage of the device can be greatly reduced by the hole transport material, the consumption of electric energy is effectively reduced, the luminous efficiency is remarkably improved, and the service life of the light-emitting device is remarkably prolonged; lighting equipment and electronic display equipment prepared from the hole transport material have the effectsof high brightness, high efficiency and low voltage, screen dark spots can be effectively avoided, and the performance is more excellent.
An electroluminescent compound and an electroluminescent device comprising the same
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Paragraph 0266; 0283-0287; 0652; 0673-0676, (2020/09/26)
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. [Chemical formula 1].
Fused ring organic compound and mixture and organic electronic device comprising same
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Paragraph 0299; 0300; 0302, (2019/05/15)
The invention relates to a fused ring organic compound and a mixture and organic electronic device comprising the same. The fused ring organic compound shown in a general formula (I) has excellent electron transport properties and stability, material synthesis is simple, and when a synthesized material is applied to a device host material, the luminous efficiency and stability of the device can beimproved, and the production cost of the device can be reduced. In addition, a co-host can be formed through cooperation of the fused ring organic compound with another host with a hole transport property or a bipolar property, the electroluminescent efficiency and the service life of the device can be improved further.
COMPOUND FOR ORGANIC ELECTRONIC ELEMENT, ORGANIC ELECTRONIC ELEMENT USING THE SAME, AND A ELECTRONIC DEVICE THEREOF
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, (2018/08/19)
The present invention relates to an indole compound, to a compound for an organic electric element containing a derivative thereof, to an organic electric element using same, and to a corresponding electronic device. According to the present invention, the luminous efficiency, color purity, and lifespan of the element can be improved, and the drive voltage thereof can be decreased.
NEW COMPOUNDS AND ORGANIC LIGHT EMITTING DEVICE USING THE SAME
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Paragraph 0186; 0188, (2016/10/07)
The present invention provides a novel compound that is capable of largely improving a life span, efficiency, electrochemical stability and thermal stability of an organic light emitting device, and an organic light emitting device in which the compound i
Quinoline or quinoxaline-fused pyrrole-carbazole derivatives as organic electroluminescence compounds and a preparation method thereof
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Paragraph 0077-0079, (2017/01/02)
The present invention relates to a quinoline- or quinoxaline-fused pyrrole-carbazole derivative as an organic electroluminescent compound and a preparation method thereof. An organic electroluminescent device having a low operating voltage and excellent luminance efficiency such as current efficiency and electrical power efficiency in addition to high-purity color and improved operating lifespan, can be provided by using the organic electroluminescent compound manufactured according to the present invention. The preparation method of the quinoline- or quinoxaline-fused pyrrole-carbazole derivative comprises the steps of: making a reaction between a compound represented by chemical formula 3 and a compound represented by chemical formula 4 in presence of a base, a solvent and a metallic catalyst, and preparing a compound represented by chemical formula 2; and making a reaction between the compound represented by chemical formula 2 and a ligand, a base, and a solvent in presence of a metallic catalyst, and preparing a compound represented by chemical formula 1.COPYRIGHT KIPO 2016
COMPOUND FOR ORGANIC ELECTRIC ELEMENT, ORGANIC ELECTRIC ELEMENT COMPRISING THE SAME AND ELECTRONIC DEVICE THEREOF
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Paragraph 0129; 0130; 0135; 0136; 0140; 0141; 0146; 0147, (2016/10/08)
The present invention provides a compound represented by Chemical Formula 1. Moreover, provided is an organic electric element including a first electrode, a second electrode, and an organic material layer between the first electrode and the second electrode, wherein the organic material layer includes the compound represented by Chemical Formula 1. When the compound represented by Chemical Formula 1 is included in the organic material layer of the organic electric element, a driving voltage is reduced, and light emitting efficiency, color purity, and lifecycle may be improved.(110) Substrate(120) Positive electrode(130) Hole injecting layer(140) Hole transporting layer(141) Buffer layer(150) Light-emitting layer(151) Light-emitting assisting layer(160) Electron transferring layer(170) Electron injecting layer(180) Negative electrodeCOPYRIGHT KIPO 2015
LIGHT-EMITTING MATERIAL FOR ORGANIC ELECTROLUMINESCENT DEVICE, ORGANIC ELECTROLUMINESCENT DEVICE USING SAME, AND MATERIAL FOR ORGANIC ELECTROLUMINESCENT DEVICE
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Paragraph 0350-0353, (2016/10/08)
Disclosed are a novel fused cyclic compound having excellent light emitting efficiency and thermal stability, a method for producing the same, and an organic electroluminescent device including the same compound. The fused cyclic compound is represented b