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公开(公告)号：US20220102635A1
公开(公告)日：2022-03-31
申请号：US17296347
申请日：2019-11-28
发明人： Sung-hoon JOO , Byung-sun YANG , Su-jin KIM , Ji-hwan KIM , Hyeon-jun JO , Sung-eun CHOI , Bong-ki SHIN , Young-hwan PARK , Shuichi HAYASHI , Takeshi YAMAMOTO , Shunji MOCHIZUKI , Yuta HIRAYAMA
摘要： An organic light-emitting element according to the present invention employs a polycyclic aromatic derivative compound in a light-emitting layer inside the element, and further comprises a capping layer. Thus, the organic light-emitting element can be made highly efficient and can be useful for a device selected from among a flat panel display device, a flexible display device, a monochrome or white flat panel lighting device, and a monochrome or white flexible lighting device.
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公开(公告)号：US20220149291A1
公开(公告)日：2022-05-12
申请号：US17431195
申请日：2020-02-28
摘要： It is an object of the present invention to provide an organic EL element including a capping layer constituted by two layers consisting of a first capping layer and a second capping layer that has a refractive index that is higher than that of the first capping layer, in order to improve the light extraction efficiency compared with an organic EL element including a capping layer constituted by a single layer. The present invention provides an organic electroluminescent element at least including an anode, a hole transport layer, a light emitting layer, an electron transport layer, a cathode, and a capping layer arranged in this order, wherein the capping layer has a structure constituted by two layers consisting of a first capping layer and a second capping layer, a refractive index of the second capping layer is higher than a refractive index of the first capping layer throughout a wavelength range from 450 to 650 nm, and the second capping layer contains an arylamine compound having a specific structure.
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3.发明申请公开(公告)号：US20220119360A1
公开(公告)日：2022-04-21
申请号：US17427772
申请日：2020-02-21
发明人： Shunji MOCHIZUKI , Takuya UEHARA , Kouki KASE , Yuta HIRAYAMA , Takeshi YAMAMOTO , Shuichi HAYASHI , Young-Tae CHOI , Se-Jin LEE , Seok-Bae PARK , Tae-Jung YU , Byung-Sun YANG
IPC分类号： C07D263/62 , H01L51/00 , C07D277/66 , C09K11/06 , H01L51/52
摘要： An objective of the invention is to provide an organic EL device that combines various materials of the device and a capping layer composed from a material that absorbs sunlight within the wavelength range of 400 nm to 410 nm to prevent impact on materials inside the organic EL device, has a high light absorption coefficient and a high refractive index to significantly improve light extraction efficiency, has excellent stability, durability and light resistance in a thin film, and has no absorption within the wavelength ranges of blue, green and red, to thereby effectively achieve the characteristics of the various materials of the device. The invention is an arylamine compound having a benzazole structure, and is also an organic EL device including a capping layer containing the arylamine compound and a light-emitting layer containing a host and a phosphorescent dopant.
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公开(公告)号：US20220077403A1
公开(公告)日：2022-03-10
申请号：US17417267
申请日：2019-12-18
发明人： Yuta HIRAYAMA , Takeshi YAMAMOTO , Shunji MOCHIZUKI , Shuichi HAYASHI , Se-Jin LEE , Oun-Gyu LEE , Bong-Ki SHIN
IPC分类号： H01L51/00
摘要： The present invention provides various organic electroluminescent elements using a material for a capping layer and a material for a luminous layer, in which the material for a capping layer uses an arylamine material that exhibit excellent stability and durability in the form of a thin film, especially a specific amine compound having a high refractive index and having a high absorbance within a wavelength range from 400 nm to 410 nm in the absorption spectrum at a concentration of 10−5 mol/L; and in which the material for a luminous layer uses a compound containing a heterocyclic compound that has a specific fused ring structure.
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公开(公告)号：US20200207748A1
公开(公告)日：2020-07-02
申请号：US16646980
申请日：2018-09-04
IPC分类号： C07D413/10 , C07D413/04 , C07D413/14 , C07D417/10 , C07D417/04 , C07D417/14 , C07C211/54 , C07C211/58 , C07D263/57 , C07D277/66 , C07D209/82 , C07D307/91 , C07D333/76 , H01L51/42 , H01L51/00
摘要： [Object] It is an object of the present invention to provide an organic EL device in which various materials for an organic EL device, which is excellent in hole injection/transport performance, electron injection/transport performance, electron blocking performance, stability in a thin film state, and durability, are combined so that properties of each of the materials can be effectively expressed, thereby achieving (1) high light emission efficiency and power efficiency, (2) a low light emission start voltage, (3) a low practical driving voltage, and particularly (4) a long lifetime.[Solving Means] There is provided an organic EL device, including at least an anode, a hole transport layer, a light-emitting layer, an electron transport layer, and a cathode in the stated order, the organic EL device being characterized in that the hole transport layer contains an arylamine compound represented by the following general formula (1), and the electron transport layer contains a compound having a benzoazole ring structure represented by the following general formula (2). (In the formula, Ar1 to Ar5 may be the same or different from each other, and represent a substituted or unsubstituted aromatic hydrocarbon group, a substituted or unsubstituted aromatic heterocyclic group, or a substituted or unsubstituted fused polycyclic aromatic group. Ar6 to Ar8 may be the same or different from each other, and represent a hydrogen atom, a substituted or unsubstituted aromatic hydrocarbon group, a substituted or unsubstituted aromatic heterocyclic group, or a substituted or unsubstituted fused polycyclic aromatic group. n1 represents 0, 1, or 2. Ar3 and Ar4 may form a ring with a single bond or may be bonded to each other via a substituted or unsubstituted methylene group, an oxygen atom, or a sulfur atom to form a ring. Ar3 or Ar4 may form a ring with a benzene ring to which Ar3Ar4—N group is bonded, with a single bond or may be bonded to each other via a substituted or unsubstituted methylene group, an oxygen atom, or a sulfur atom to form a ring.) (In the formula, Ar9 and Ar10 may be the same or different from each other, and represent a hydrogen atom, a deuterium atom, a substituted or unsubstituted aromatic hydrocarbon group, a substituted or unsubstituted aromatic heterocyclic group, a substituted or unsubstituted fused polycyclic aromatic group, or a substituted or unsubstituted alkyl group. Y1 represents a substituted or unsubstituted aromatic hydrocarbon group, a substituted or unsubstituted aromatic heterocyclic group, a substituted or unsubstituted fused polycyclic aromatic group, or a substituted or unsubstituted alkyl group. X represents an oxygen atom or a sulfur atom. Z1 and Z2 may be the same or different from each other, and represent a carbon atom or a nitrogen atom.)
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公开(公告)号：US20180362843A1
公开(公告)日：2018-12-20
申请号：US15781986
申请日：2016-12-07
IPC分类号： C09K11/06 , C07C211/54 , C07D495/04 , C07D403/04 , C07D403/10 , C07D491/048 , C07D495/14 , H01L51/00
摘要： The present invention provides an organic EL device having at least an anode, a hole transport layer, a luminous layer, an electron transport layer, and a cathode in this order, wherein the hole transport layer contains an arylamine compound represented by the following general formula (1), and the luminous layer contains a dihydroindenoindole derivative represented by the following general formula (2) or a carbazole derivative represented by the following general formula (3). The organic EL device of the present invention has a high efficiency, is driven at a low driving voltage, and has a particularly long lifetime.
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公开(公告)号：US20220255008A1
公开(公告)日：2022-08-11
申请号：US17616537
申请日：2020-05-29
发明人： Kazunori TOGASHI , Mika SHINODA , Hideyoshi KITAHARA , Shunji MOCHIZUKI , Hiroki HIRAI , Yuta SAEGUSA
摘要： [Object] To provide a polymer material having excellent hole injection/transport performance, electron blocking capability, high heat resistance, and high stability in a thin-film state for use in a polymer organic EL device, and provide an organic EL device having a low drive voltage, high light emission efficiency, and a long lifetime using this polymer material.
[Solving Means] A compound according to the present invention is a high-molecular-weight compound having at least one substituted triarylamine structural unit represented by the following general formula (1), further including a structural unit having at least one aromatic hydrocarbon ring or a structural unit having a triarylamine skeleton in addition to the at least one substituted triarylamine structural unit, and having a weight average molecular weight of 10,000 or more and 1,000,000 or less in terms of polystyrene and no a crosslinker, characterized in that the high-molecular-weight compound is used in an organic EL device as a constituent material of at least one organic layer.-
公开(公告)号：US20210226132A1
公开(公告)日：2021-07-22
申请号：US17259822
申请日：2019-07-17
发明人： Kouki KASE , Shunji MOCHIZUKI , Yuta HIRAYAMA
IPC分类号： H01L51/00 , C07D403/14 , C07D263/57 , C07D249/20 , C09K11/06 , H01L51/50
摘要： The present invention is an organic EL element in which a material used for a capping layer is a material having a high absorbance as measured at a wavelength of 400 to 410 nm in an absorption spectrum at a concentration of 10−5 mol/L, and the material is selected from an arylamine material which provides excellent stability and durability to a thin film, particularly selected from a diamine compound that has a particular benzazol ring structure having a high refractive index.
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9.发明申请公开(公告)号：US20200328355A1
公开(公告)日：2020-10-15
申请号：US16761615
申请日：2018-11-05
IPC分类号： H01L51/00
摘要： [Object] It is an object of the present invention to provide an organic compound having excellent properties such as excellent hole injection/transport performance, electron blocking performance, high stability in a thin-film state, and high light emission efficiency as a material for a highly efficient organic EL device having a high durability, and a highly efficient organic EL device having a high durability by using this compound.[Solving Means] An organic EL device, including, between an anode and a cathode, at least a first hole transport layer, a second hole transport layer, a green light-emitting layer, and an electron transport layer in the stated order from a side of the anode, the organic EL device being characterized in that the second hole transport layer, or at least one of stacked films disposed between the first hole transport layer and the electron transport layer contains a compound having an indenocarbazole ring structure, the compound being represented by the following general formula (1).
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公开(公告)号：US20240260457A1
公开(公告)日：2024-08-01
申请号：US18618748
申请日：2024-03-27
CPC分类号： H10K85/654 , H10K85/631 , H10K50/15 , H10K50/16 , H10K50/171
摘要： The present invention relates to an organic EL device having at least an anodic electrode, a hole transport layer, a light emitting layer, an electron transport layer, a cathodic electrode, and a capping layer in this order, in which the capping layer contains an amine compound having a benzazole ring structure represented by the following general formula (A-1).
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