- A compound. Electron transport material and organic electroluminescent device
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The present application provides a compound of formula (I), which may be used in an electron transport material. The compound has the parent structure of electrosorption fragment biphenanthroline, has high bond energy among atoms, has good thermal stability, is favorable for solid accumulation of molecules, has strong electronic transition capability, can effectively reduce the driving voltage of an organic electroluminescent device, improves the current efficiency and prolongs the service life. The invention further provides an organic electroluminescent device comprising the compound of the general formula (I) and a display device.
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- COMPOUND AND ORGANIC LIGHT EMITTING DEVICE COMPRISING SAME
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The present specification provides a compound represented by chemical formula 1 and an organic light emitting device including the same. The compound may improve lifespan characteristics of the organic light emitting device.
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Paragraph 0230-0233; 0237-0240
(2021/01/29)
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- POLYCYCLIC COMPOUND, MATERIAL FOR AN ORGANIC ELECTROLUMINESCENCE DEVICE AND AN ORGANIC ELECTROLUMINESCENCE DEVICE COMPRISING THE POLYCYCLIC COMPOUND
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Specific polycyclic compounds represented by formula (la) or (lb), a material for an organic electroluminescence device comprising said specific polycyclic compound, an organic electroluminescence device comprising said specific polycyclic compound, an el
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Paragraph 0113; 0264-0265
(2021/07/02)
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- Azabenzene modified organic compound and application thereof
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The invention discloses an azabenzene modified organic compound and application thereof, and belongs to the technical field of semiconductors, wherein the structure of the azabenzene modified organiccompound is represented by a general formula (I). The invention also discloses application of the organic compound. The organic compound provided by the invention has good thermal stability, high glass transition temperature and appropriate HOMO energy level. A device adopting the organic compound provided by the invention can effectively improve the photoelectric property of an OLED device and prolong the service life of the OLED device through structural optimization.
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Paragraph 0078; 0079; 0080; 0083
(2020/07/15)
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- Polyfluorene derivative and organic light-emitting device thereof
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The invention provides a polyfluorene derivative and an organic light-emitting device thereof, and belongs to the technical field of organic photoelectric materials. The derivative has a structure shown as a formula (I). The polyfluorene derivative disclosed by the invention has a larger conjugate plane structure, so that high electron fluidity can be provided; electron-deficient group dibenzofuran, dibenzothiophene, acridine, phenoxazine and phenothiazine structures are introduced to better facilitate the acception of electrons and enable the polyfluorene derivative to have good transmissionperformance; by introducing a bridged structure, on the one hand, the molecular weight of the compound can be enlarged, and the obtained material is enabled to have high glass transition temperature and prevent the crystallization effect; on the other hand, the derivatives are enabled to have certain distortion in three-dimensional stereoscopic structure, and the film-forming property of the derivative is improved. The organic light-emitting device, which is prepared by using the compound as a main body material in a luminescent layer, shows the advantages of low driving voltage and high luminous efficiency; the polyfluorene derivative is an organic luminescent material with excellent performance.
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Paragraph 0085-0087; 0090-0091; 0106; 0109-0110
(2018/10/19)
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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 employed in an organic electroluminescent device. The organic light emitting compound is represented by chemical formula 1 or chemical formula 2. In addition, the organic electroluminescent device having excellent light emitting properties such as driving voltage, brightness, long lifespan, and the like is implemented when employing the organic light emitting compound as a phosphorescent host compound inside a hole transport functional layer or a light emitting layer.COPYRIGHT KIPO 2016
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Paragraph 0171; 0400-0402
(2016/10/07)
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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 adopted to an organic electroluminescent device. The organic light emitting compound is represented by chemical formula 1 or chemical formula 2. In the case of adopting the organic light emitting compound as a phosphorescence host compound in a hole transport functional layer or a luminous layer, an organic electroluminescent device having excellent luminous characteristics such as operating voltage, brightness, long lifespan, etc.
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Paragraph 0292-0294; 1212-1215
(2016/10/10)
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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 light emitting device. The organic light emitting compound: is represented by chemical formula 1; includes one or more substituted bodies represented by structural formula 1 or structural formula 2; and is capable of realizing an organic light emitting device having excellent luminous properties such as driving voltage, luminance, a long life and the like in the case of being applied as a phosphorescent host compound in a hole transporting functional layer or an emissive layer.COPYRIGHT KIPO 2016
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Paragraph 0213; 0214; 0486; 0487
(2016/10/07)
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- COMPOUND FOR ORGANIC ELECTRONIC ELEMENT, ORGANIC ELECTRONIC ELEMENT USING THE SAME, AND AN ELECTRONIC DEVICE THEREOF
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The present invention relates to: a compound which can obtain high light emitting efficiency and low driving voltage of a device and expand lifespan of the device; an organic electric device using the same; and an electronic apparatus thereof. The present invention provides a compound represented by chemical formula 1, and provides an organic electric device using the compound represented by the chemical formula and an electronic apparatus thereof.(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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Paragraph 0343-0344
(2016/10/07)
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- COMPOUND FOR ORGANIC ELECTRONIC ELEMENT, ORGANIC ELECTRONIC ELEMENT USING THE SAME, AND AN ELECTRONIC DEVICE THEREOF
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The present invention relates to: a compound which can obtain high light emitting efficiency and low driving voltage of a device and expand lifespan of the device; an organic electric device using the same; and an electronic apparatus thereof. The present invention provides a compound represented by chemical formula 1, and provides an organic electric device using the compound represented by the chemical formula and an electronic apparatus thereof.(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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Paragraph 0165; 0174
(2016/10/07)
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