- Preparation method and application of dicarbazole and derivatives thereof
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The invention belongs to the technical field of organic chemical synthesis, and particularly relates to a preparation method and application of dicarbazole and derivatives thereof. At present, the preparation of dicarbazole and derivatives thereof is comp
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- Functional material based on stable chemical structure
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The invention relates to functional materials based on stable chemical structures. A series of novel donor - acceptor type TADF activated emitters have been designed, which are intended to develop stable OLED. with enhanced operational stability and improved color purity that can be used in full color displays and lighting applications.
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Paragraph 0291; 0300
(2021/08/25)
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- COMPOUND AND ORGANIC LIGHT EMITTING DEVICE COMPRISING THE SAME
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The present invention provides a compound represented by chemical formula and an organic light emitting device including the same.
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Paragraph 0134; 0138-0140
(2021/03/16)
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- Phosphorescent host material and application thereof
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The present invention discloses a phosphorescent host material, the phosphorescent host material at least comprises an electron transport (N-type) host material H1 and a hole transport (P-type) host material H2, and H1 and H2 are respectively selected fro
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Paragraph 0258-0260; 0262; 0296-0298; 0300
(2021/04/21)
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- Organic compound as well as electronic element and device using same
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The invention relates to the technical field of organic materials, and provides an organic compound as well as an electronic element and an electronic device using the same. The structure of the organic compound is composed of a chemical formula I and a chemical formula II. When the organic compound is used for a light-emitting layer of an organic electroluminescencedevice, the efficiency of the device can be effectively improved, and the service life of the organic electroluminescence device is prolonged.
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Paragraph 0028; 0235-0236; 0258
(2021/05/19)
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- Organic compound taking carbazole derivative as core and application of organic compound to organic light-emitting device
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The invention relates to an organic compound taking a carbazole derivative as a core and application of the organic compound to an organic light-emitting device. The organic compound provided by the invention takes the carbazole derivative as the core; the structure of the organic compound is shown as a general formula (1), the compound has good thermal stability, high glass transition temperatureand appropriate HOMO energy level, and the photoelectric property of the OLED device can be effectively improved and the service life of the OLED device can be effectively prolonged by optimizing thestructure of the device adopting the organic compound provided by the invention.
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Paragraph 0057; 0059; 0062-0064; 0066
(2020/06/20)
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- Compound containing dibenzocycloheptene, and application in organic electroluminescent device
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The invention relates to a compound containing dibenzocycloheptene, and application of the compound to an organic electroluminescent device, wherein the structure of the compound is that a dibenzocycloheptene derivative is connected with a six-membered ri
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Paragraph 0150; 0152; 0155
(2020/07/15)
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- COMPOUND FOR ORGANIC ELECTRIC ELEMENT AND ORGANIC ELECTRIC DEVICE COMPRISING THE SAME
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The present invention relates to a compound for an organic electronic element and an organic electronic element using the same. To the present invention, an organic electronic element having high luminous efficiency, low driving voltage, and high heat resistance can be provided and the color purity and lifetime of the organic electronic element can be improved. (by machine translation)
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Paragraph 0363-0365; 0368-0369; 0396; 0398; 0401
(2020/11/28)
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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 0900; 0906-0909
(2020/12/15)
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- Boron-containing organic electroluminescent material and application thereof in organic electroluminescent device
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The invention discloses a boron-containing organic electroluminescent material and application thereof in an organic electroluminescent device, the compound comprises boron groups, and the compound has strong group rigidity, and has the characteristics of
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Paragraph 0084-0085; 0109-0110
(2020/06/20)
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- Organic light-emitting device
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An organic light-emitting device including a first electrode, a second electrode facing the first electrode, and an organic layer disposed between the first electrode and the second electrode, wherein the organic layer has an emission layer, wherein the e
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Page/Page column 122; 129
(2020/01/06)
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- Novel compound and organic light emitting device comprising the same
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The present invention provides a novel compound and an organic light emitting device comprising the same. The compound represented by chemical formula 1 can be used as a material of an organic material layer of the organic light emitting device, and can improve efficiency, low driving voltage, and/or lifespan characteristics of the organic light emitting device.COPYRIGHT KIPO 2020
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Paragraph 0178-0181; 0226-0228
(2020/03/04)
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- Dibenzothiophene-indolocarbazole-based bipolar material: Host for green phosphorescent OLEDs and non-doped fluorescent emitter
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Novel bipolar material 2-(5-phenylindolo[3,2-a]carbazol-12(5H)-yl)dibenzothiophene 5,5-dioxide (DBTO-IN/CAR) was designed and synthesized with a high yield of 64%. The synthesized material exhibited an excellent glass transition temperature of 156 °C, which manifests as a high thermal stability of DBTO-IN/CAR. We fabricated two different devices, namely a green phosphorescent OLED and a non-doped bipolar fluorescent emitter, with DBTO-IN/CAR as the bipolar material. The DBTO-IN/CAR host material based device exhibited excellent maximum power and current efficiencies of 45.36 lm/W and 51.98 cd/A, respectively. The efficiencies are higher than that of the reference CBP-based similar device, which exhibited a power efficiency of 42.01 lm/W. The DBTO-IN/CAR-based green phosphorescent device revealed a good external quantum efficiency of 19.03%. Moreover, the non-doped DBTO-IN/CAR fluorescent emitter related device also exhibited better current and external quantum efficiencies of 4.30 cd/A and 2.47%, respectively, with the emission of cyan color.
- Braveenth, Ramanaskanda,Bae, Il-Ji,Raagulan, Kanthasamy,Kim, Sohyeon,Kim, Sunghoon,Kim, Miyoung,Chai, Kyu Yun
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p. 466 - 474
(2018/11/06)
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- Organic electroluminescent element
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Provided is an organic electroluminescent device (EL device) using an indolocarbazole compound. The organic EL device is obtained by laminating an anode, a plurality of organic layers including a phosphorescent light-emitting layer, and a cathode on a substrate, and the phosphorescent light-emitting layer, a hole-transporting layer, an electron-transporting layer, a hole-blocking layer, or an electron-blocking layer contains an indolocarbazole compound represented by the general formula (1). In the general formula (1), a ring I and a ring II represent rings represented by the formula (1a) and the formula (1b) to be fused to adjacent rings, As each represent C—R or N and at least one of As represents N, Ls each represent a substituted or unsubstituted aromatic hydrocarbon group, or a substituted or unsubstituted aromatic heterocyclic group, and at least one of Ls represents a two- to four-ring fused heterocyclic group, Rs each represent an aliphatic hydrocarbon group, an aromatic hydrocarbon group, or an aromatic heterocyclic group, ps each represent an integer of from 0 to 4, q represents an integer of from 0 to 2, r represents an integer of from 1 to 4, X1 to X4 each represent an aromatic hydrocarbon group or an aromatic heterocyclic group, and l, m, and n each represent an integer of from 0 to 5.
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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 0184; 0189; 0190
(2017/11/23)
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- PHOSPHOROUS HOST MATERIAL AND ORGANIC ELECTROLUMINESCENT DEVICE COMPRISING THE SAME
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The present invention relates to phosphorous host materials and an organic electroluminescent device comprising the same. By using the phosphorous host material of the present invention, an organic electroluminescent device having significantly improved o
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Paragraph 242-243
(2016/12/12)
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- HETERO-CYCLIC COMPOUND AND ORGANIC LIGHT EMITTING DEVICE COMPRISING THE SAME
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Provided in the present specification are a hetero-cyclic compound and an organic light-emitting device comprising the same. The compound is represented by chemical formula 1. The compound is capable of improving durability, having low driving voltage, an
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Paragraph 0267-0270
(2016/10/10)
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- Organic electroluminescent materials and devices
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The present disclosure provides novel compounds based on azadibenzothiophenes, azadibenzofurans and azadibenzoselenophenes with at least two nitrogen atoms in the aza rings. The compounds can be used in green, red, yellow and white emitting devices as electron-transporting hosts.
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- NOVEL ORGANIC ELECTROLUMINESCENT COMPOUNDS AND ORGANIC ELECTROLUMINESCENT DEVICE USING THE SAME
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The present invention relates to a novel organic electroluminescent compound and an organic electroluminescent device containing the same. Since the organic electroluminescent compounds according to the present invention have high efficiency in transporting electrons, crystallization may be prevented when manufacturing a device. Further, the compounds have good layer formability and improve the current characteristics of the device. Therefore, they can produce an organic electroluminescent device having lowered driving voltages and enhanced power efficiency.
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Paragraph 108; 115; 116
(2013/03/28)
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- MATERIAL FOR USE IN PHOSPHORESCENT DEVICE AND ORGANIC ELECTROLUMINESCENT DEVICE USING SAME
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Provided is an organic electroluminescent device (organic EL device), in which the luminous efficiency of the device is improved, driving stability is sufficiently ensured, and the construction of the device is simple. This organic EL device is an organic electroluminescent device, including a light-emitting layer between an anode and a cathode laminated on a substrate, in which the light-emitting layer contains a phosphorescent light-emitting dopant and an indolocarbazole compound as a host material. Examples of the indolocarbazole compound include a compound represented by the following formula (1). It should be noted that in the formulae: a ring A and a ring B are represented by the formulae (1a) and (1b), respectively; Ar's each represent an aromatic hydrocarbon group or an aromatic heterocyclic group; R's each represent a hydrogen atom, an alkyl group, or a cycloalkyl group; X represents a methine group or a nitrogen atom; A represents an aromatic hydrocarbon group, an alkyl group, a cycloalkyl group, or a group represented by the formula (1c); and n represents 0 or 1.
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