- Compound containing aza-5-membered ring and application thereof in organic electroluminescent devices
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The invention discloses a compound containing an aza-5-membered ring and an application thereof in organic electroluminescent devices. The compound is composed of the aza-5-membered ring, has deep HOMO energy level and high hole mobility rate, and is suitable for electronic barrier materials. In addition, the compound has strong group rigidity, has molecules difficult to crystallize and gather, and has good film-forming property. After the compound as an organic electroluminescent functional layer material is applied in OLED devices, the current efficiency, power efficiency and external quantum efficiency of the devices are greatly improved, and the lifetime of the devices is significantly prolonged.
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Paragraph 0058; 0064; 0065
(2019/12/25)
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- A heat-activated delay fluorescent material and the organic light-emitting diode in the application (by machine translation)
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The invention provides a heat activation delay fluorescent material and the organic light-emitting diode in the application, the material of the chemical structure of formula (1) as shown: , Formula (1) in, group R is a carbazole derivative triphenylamine derivatives and is connected to the chemical group; R is selected from cyclic atom number is 18 of a carbazole derivative. The invention through the organic light-emitting material in the donor group modified, make and its carrier transmission performance is greatly improved, so that the organic light-emitting material is applied to the blue light, dark blue or white light has the better performance of the device. Material not only can be used as a blue dye can be used as a yellow or green dye of the body material. For the single-layer of the luminescent layer of the organic light-emitting diode application, in higher brightness efficiency under the roll-eased. At the same time simplifies the white organic light emitting diode device structure, lowering the industrial production cost. (by machine translation)
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Paragraph 0030
(2019/03/25)
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- Novel organic compounds derivatives and organic light-emitting diode therewith
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The present invention relates to an organic compound represented by the chemical formula (A) or (B) and to an organic light-emitting device comprising the same. In the chemical formulas (A) and (B), R_1 to R_14, L1, L2, Ar1 to Ar3, n and m are as described in detailed description of the invention. The first object of the present invention is to provide the organic compound having a specific structure capable of having high efficiency, low voltage and long life characteristics by using the compound in an electron transporting layer or a hole transporting layer in the organic light emitting device.COPYRIGHT KIPO 2018
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- MATERIALS FOR ELECTRONIC DEVICES
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The present invention relates to a compound of the formula (I), (II) or (III), to the use of the compound in an electronic device, and to an electronic device comprising a compound of the formula (I), (II) or (III). The present invention furthermore relates to a process for the preparation of a compound of the formula (I), (II) or (III) and to a formulation comprising one or more compounds of the formula (I), (II) or (III).
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Paragraph 0229-0231
(2017/07/23)
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- Organic electroluminescence material and preparation method and application thereof
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The invention provides an organic electroluminescence material and a preparation method and application thereof, and belongs to the technical field of the organic photoelectric material. The material is capable of using a carbazole radical group as the center, and connected with a dimethyl fluorene radical and a pentafluorophenyl. The material has the excellent electronic transmission capability and cavity transport capability, and the luminous efficiency is greatly improved, so the material can be used for preparing an organic electroluminescence device, and specifically used as the main material of the luminescent layer in the organic electroluminescence device. Compared with the current OLED device, the organic electroluminescence device has good performance. The invention further provides the preparation method for the organic electroluminescence material. The preparation method is simple, and suitable for the industrial production.
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Paragraph 0052; 0063
(2017/07/21)
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- Phosphor material containing heteratomic parent nucleus-o-fluorene ring structure and organic light emitting diode
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The invention provides a phosphor material containing a heteratomic parent nucleus-o-fluorene ring structure and an organic light emitting diode and belongs to the technical field of organic photoelectric materials. The technical problems in the prior art that the organic photoelectric material has low luminous efficiency, high driving voltage and other poor luminous properties are solved. The experimental results prove that the organic light emitting diode (OLED) prepared by adopting the phosphor material containing the heteratomic parent nucleus-o-fluorene ring structure disclosed by the invention has the highest luminous efficiency up to 18.8cd/A and the driving voltage of 3.2V. The phosphor material is an excellent OLED material.
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Paragraph 0075; 0078
(2017/09/26)
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- An organic electronic elements and their dialkylfluorene contg.
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The present invention relates to certain fluorenes, to the use of the compounds in an electronic device, and to an electronic device comprising at least one of these compounds. The present invention furthermore relates to a process for the preparation of the compounds and to a formulation and composition comprising one or more of the compounds.
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Paragraph 0160; 0161
(2016/10/08)
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