- Organic light-emitting diode having alleviated luminance reduction in low dynamic range
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The present disclosure relates to an organic light-emitting diode which can operate at a low voltage with high efficiency and exhibits the effect of having an alleviated luminance reduction rate in a low dynamic range. More particularly, the organic light-emitting diode comprises: a first electrode; a second electrode facing the first electrode; and a light-emitting layer and a charge balance control layer arranged sequentially between the first and the second electrode, wherein the light-emitting layer includes at least one of amine derivative compounds represented by the following Chemical Formula A and the charge balance control layer includes at least one of anthracene derivative compounds represented by the following Chemical Formula B or C. The structures of Chemical Formulas A, B, and C are as defined in the specification.
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Page/Page column 61
(2022/02/22)
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- COMPOUND, MATERIAL FOR ORGANIC ELECTROLUMINESCENCE DEVICE, ORGANIC ELECTROLUMINESCENCE DEVICE, AND ELECTRONIC DEVICE
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An organic electroluminescence device having an improved performance and a compound represented by formula (1), which is a novel material that enables the organic electroluminescence device: wherein, X, Ar1 to Ar5, R1 to R20, *a, and *b are the same as those defined in the specification.
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Paragraph 0265-0267
(2020/11/27)
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- COMPOUND, MATERIAL FOR ORGANIC ELECTROLUMINESCENT ELEMENT, ORGANIC ELECTROLUMINESCENT ELEMENT, AND ELECTRONIC DEVICE
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A compound represented by formula (1): wherein R1 to R7, R11 to R18, L1 to L3, a to c, n, and Ar are as defined in the description, provides an organic electroluminescence device having an emission efficiency and a device lifetime further improved.
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Paragraph 0341-0342
(2020/12/25)
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- Organic Compound for organic light emitting diode and an organic light emitting diode including the same
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The present invention relates to an anthracene derivative selected from among compounds represented by chemical formula A-1, chemical formula A-2, chemical formula B-1, and chemical formula B-2, and an organic light emitting diode comprising the same, whe
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Paragraph 0477-0483
(2019/06/04)
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- Condensed fluorene derivative comprising heterocyclic ring
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The present invention relates to a condensed fluorene derivative comprising a heterocyclic ring and, more particularly, to an intermediate product for manufacturing a heterocyclic ring compound which can show excellent luminance and luminous efficiency when used as an organic light emitting material, while exhibiting excellent element characteristics with a long lifespan.COPYRIGHT KIPO 2020
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Paragraph 0268-0274
(2019/12/25)
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- NOVEL TRIAZINE COMPOUND, AND ORGANIC ELECTRONIC ELEMENT AND PLANT-GROWING LIGHTING THAT USE THE SAME
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PROBLEM TO BE SOLVED: To provide a triazine compound which has a high triplet energy level and excellent heat resistance, and can be used as an organic electronic element material realizing an element with high efficiency, low voltage and a long life. SOLUTION: In the triazine compound, as represented by the general formula [1] in the figure, a triazine backbone moiety is linked to a dibenzofuran or dibenzothiophene backbone moiety via a biphenyl backbone moiety, where X is an oxygen atom or sulfur atom. SELECTED DRAWING: None COPYRIGHT: (C)2018,JPO&INPIT
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Paragraph 0079
(2018/07/28)
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- Organic light-emitting diode with high efficiency
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The present disclosure relates to an organic light-emitting diode exhibiting high luminance efficiency, low-voltage operation, and long lifespan and, more particularly, to an organic light-emitting diode, comprising: a first electrode; a second electrode facing the first electrode; and a light-emitting layer and an electron density control layer sequentially arranged between the first electrode and the second electrode wherein the light-emitting layer includes at least one of the amine compounds represented by Chemical Formula A or B and the electron density control layer includes at least one of the compounds represented by Chemical Formulas F to H. The structures of Chemical Formulas A, B, and F to H are as described in the specification.
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Paragraph 0296-0297
(2018/09/02)
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- ORGANIC LIGHT EMITTING DIODE FOR HIGH EFFICIENCY
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Disclosed herein is an organic light-emitting diode, comprising: a first electrode, a second electrode opposite the first electrode, and a light-emitting layer and an electron-density-controlling layer in that order between the first electrode and the sec
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Paragraph 0198-0199
(2017/02/02)
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- Condensed fluorene derivative comprising heterocyclic ring
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The present invention relates to a condensed fluorene derivative comprising a heterocyclic ring and, more particularly, to an intermediate product for manufacturing a heterocyclic ring compound which can show excellent luminance and luminous efficiency when used as an organic light emitting diode, while having excellent element characteristics with long lifespan. The heterocyclic ring compound of the present invention is represented by chemical formula A and chemical formula B.COPYRIGHT KIPO 2016
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Paragraph 0268-0274
(2016/10/08)
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- Novel aromatic 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 to an organic light emitting device comprising the same. In the chemical formula A, a cyclic group A_1 to A_3, R_1 to R_11, L, n, a structural formula Q, and a structural formula Aandprime; are the same as described in the specification.COPYRIGHT KIPO 2016
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Paragraph 0377-0382
(2016/10/09)
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- Copper-catalyzed regioselective C-H aerobic oxidative cycloetherification of o -arylphenols bearing an additional directing group
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An efficient copper-catalyzed C-H oxidative cycloetherification of o-arylphenols containing an additional directing group under an oxygen atmosphere was developed. 2,6-Disubstituted dibenzofuran derivatives were prepared by regioselective activation of the sterically more hindered C-H bond. The presence of the extra directing group not only controls the regioselectivity, but also increases the cyclization efficiency significantly.
- Zhao, Jiaji,Wang, Yong,Zhu, Qiang
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p. 1551 - 1555
(2012/06/16)
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- AROMATIC AMINE DERIVATIVE, AND ORGANIC ELECTROLUMINESCENT ELEMENT COMPRISING SAME
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An aromatic amine derivative represented by the following formula (1) wherein at least one of Ar1 to Ar4 is a heterocyclic group represented by the following formula (2) wherein X1 is an oxygen atom or a sulfur atom.
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Page/Page column 54
(2012/03/26)
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- AROMATIC AMINE DERIVATIVE, AND ORGANIC ELECTROLUMINESCENT ELEMENT COMPRISING SAME
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Provided are: an aromatic amine derivative having a terminal substituent selected from a dibenzofuran, a dibenzothiophene, a substituted carbazole, and a substituted fluorene bound to the central skeleton having a specific structure through a nitrogen atom; an organic electroluminescence device, including an organic thin-film layer formed of one or more layers including at least a light emitting layer, the organic thin-film layer being interposed between a cathode and an anode, in which at least one layer of the organic thin-film layer contains the aromatic amine derivative alone or as a component of a mixture, the organic electroluminescence device having a long lifetime and high luminous efficiency; and an aromatic amine derivative for realizing the device.
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Page/Page column 89
(2012/12/13)
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