One Of The Benzene Rings And An Additional Carbocyclic Ring Bonded Directly To The Same Acyclic Nitrogen Patents (Class 548/442)
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Patent number: 11605782Abstract: An organic optoelectronic device and a display device, the organic optoelectronic device including an anode and a cathode facing each other, a light emitting layer between the anode and the cathode, a hole transport layer between the anode and the light emitting layer, and a hole transport auxiliary layer between the light emitting layer and the hole transport layer, wherein the light emitting layer includes a first compound represented by a combination of Chemical Formula 1 and Chemical Formula 2, and a second compound represented by Chemical Formula 3, and the hole transport auxiliary layer includes a third compound represented by Chemical Formula 4:Type: GrantFiled: December 3, 2019Date of Patent: March 14, 2023Assignee: SAMSUNG SDI CO., LTD.Inventors: Giwook Kang, Dong Min Kang, Byungku Kim, Jun Seok Kim, Eun Sun Yu, Namheon Lee, Kipo Jang, Handong Chu, Jinhyun Lui
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Patent number: 11456432Abstract: A top emission organic EL device includes an anode, hole transporting zone, emitting layer, electron transporting zone, and cathode in this order. The hole transporting zone includes: a first layer interposed between the anode and the emitting layer; and a second layer interposed between the first layer and the emitting layer. The first layer contains a first compound and the second layer contains a second compound. A film thickness of the first layer and the second layer satisfies a formula (1) and (2), respectively. A hole mobility ?H1 of the first compound satisfies a formula (3) and a hole mobility ?H2 of the second compound satisfies a formula (4), 100 nm?d1?300 nm??(1) 1 nm?d2?20 nm??(2) 1.0×10?4 [cm2/Vs]??H1?1.0×10?1 [cm2/Vs]??(3) 1.0×10?10 [cm2/Vs]??H2?1.0×10?6 [cm2/Vs]??(4).Type: GrantFiled: November 1, 2018Date of Patent: September 27, 2022Assignee: IDEMITSU KOSAN CO., LTD.Inventors: Takayasu Sado, Tetsuya Masuda, Yoshiaki Takahashi, Emiko Kambe
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Patent number: 11393997Abstract: A light-emitting layer, which is a stack of a first light-emitting layer and a second light-emitting layer, is provided between an anode and a cathode. The first light-emitting layer is formed on the anode side and contains a first light-emitting substance converting triplet excitation energy into light emission, a first organic compound having an electron-transport property, and a second organic compound having a hole-transport property. The second light-emitting layer contains a second light-emitting substance converting triplet excitation energy into light emission, the first organic compound, and a third organic compound having a hole-transport property. The second organic compound has a lower HOMO level than the third organic compound. The first light-emitting substance emits light with a wavelength shorter than that of light emitted from the second light-emitting substance. The first and the second organic compounds form an exciplex. The first and the third organic compounds form an exciplex.Type: GrantFiled: August 5, 2020Date of Patent: July 19, 2022Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Satoshi Seo, Hiromi Seo
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Patent number: 9761809Abstract: A compound represented by Formula 1 below, and an organic light-emitting device including the compound:Type: GrantFiled: April 10, 2015Date of Patent: September 12, 2017Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jongwoo Kim, Youngkook Kim, Seunggak Yang, Jino Lim, Hyungseok Jang, Seokhwan Hwang
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Patent number: 8921832Abstract: The present invention relates to a novel compound and an organic light emitting device using the compound, and the compound according to the present invention may largely improve a life span, efficiency, electrochemical stability and thermal stability of the organic light emitting device.Type: GrantFiled: October 8, 2009Date of Patent: December 30, 2014Assignee: LG Chem, Ltd.Inventors: Dae-Woong Lee, Sung-Kil Hong, Tae-Yoon Park, Yeon-Hwan Kim, Seong-So Kim
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Publication number: 20140374722Abstract: A compound represented by Formula 1. An organic electric element includes a first electrode, a second electrode, and an organic material layer including the compound of Formula 1. The organic material layer include a light emitting layer, a hole transport layer including a compound represented by Formula 2, and an emission-auxiliary layer including the compound represented by Formula 1. When the organic electric element includes the compound in the organic material layer, luminous efficiency, color purity, and life span can be improved.Type: ApplicationFiled: January 14, 2013Publication date: December 25, 2014Inventors: Dongha Kim, Sunhee Lee, Yeonhee Choi, Soungyun Mun, Jungcheol Park, Yongwook Park, Heesun Ji, Junghwan Park, Bumsung Lee, Sunpil Hwang
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Patent number: 8911885Abstract: Embodiments of the present invention are directed to heteroarylamine compounds and organic luminescence devices including the heteroarylamine compounds. The organic luminescence devices using the heteroarylamine compounds have high-efficiency, low driving voltages, high luminance and long lifetimes.Type: GrantFiled: August 16, 2010Date of Patent: December 16, 2014Assignee: Samsung Display Co., Ltd.Inventors: Young-Kook Kim, Seok-Hwan Hwang, Yoon-Hyun Kwak, Hye-Jin Jung, Jong-Hyuk Lee, Jin-O Lim, Chang-Ho Lee
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Publication number: 20140364626Abstract: It is an object of the present invention to provide a light emitting element, which is resistant to repetition of an oxidation reaction. It is another object of the invention to provide a light emitting element, which is resistant to repetition of a reduction reaction. An anthracene derivative is represented by a general formula (1). In the general formula (1), R1 represents hydrogen or an alkyl group having 1 to 4 carbon atoms, R2 represents any one of hydrogen, an alkyl group having 1 to 4 carbon atoms and an aryl group having 6 to 12 carbon atoms, R3 represents any one of hydrogen, an alkyl group having 1 to 4 carbon atoms, and an aryl group having 6 to 12 carbon atoms, Ph1 represents a phenyl group, and X1 represents an arylene group having 6 to 15 carbon atoms.Type: ApplicationFiled: August 22, 2014Publication date: December 11, 2014Inventors: Harue Nakashima, Sachiko KAWAKAMI, Kumi KOJIMA, Ryoji NOMURA, Nobuharu OHSAWA
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Publication number: 20140353617Abstract: A condensed compound is represented by Formula 1 below: An organic light-emitting diode includes a substrate, a first electrode on the substrate, a second electrode disposed opposite to the first electrode, and an organic layer interposed between the first electrode and the second electrode. The organic layer includes at least one layer including a compound of Formula 1.Type: ApplicationFiled: November 22, 2013Publication date: December 4, 2014Applicant: Samsung Display Co., Ltd.Inventors: Soo-Yon KIM, Seok-Hwan HWANG, Young-Kook KIM, Jun-Ha PARK, Hye-Jin JUNG, Eun-Young LEE, Sang-Hyun HAN, Jin-O LIM
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Publication number: 20140332772Abstract: A styryl-based compound represented by Formula 1 below is disclosed. An organic light-emitting diode including the styryl-based compound is also disclosed.Type: ApplicationFiled: November 8, 2013Publication date: November 13, 2014Applicant: SAMSUNG DISPLAY CO., LTD.Inventors: Sang-Hyun Han, Seok-Hwan Hwang, Young-Kook Kim, Hye-Jin Jung, Jin-O Lim, Soo-Yon Kim, Eun-Jae Jeong, Jun-Ha Park, Eun-Young Lee, Jong-Hyuk Lee
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Patent number: 8865322Abstract: A dendrimer and an organic light-emitting device including an organic layer having the dendrimer.Type: GrantFiled: July 8, 2011Date of Patent: October 21, 2014Assignee: Samsung Display Co., Ltd.Inventors: Jeoung-In Yi, Yoon-Hyun Kwak, Seung-Gak Yang, Hee-Yeon Kim, Jae-Yong Lee
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Publication number: 20140296519Abstract: A 4-aminocarbazole compound represented by formula (1): wherein Ar1-Ar4 represent substituted or unsubstituted aryl, thienyl, pyridyl, benzothienyl, dibenzothienyl, dibenzofuranyl, 4-carbazolyl, dibenzothienylphenyl, dibenzofuranylphenyl or 9-carbazolylphenyl group; R1-R7 represent substituted or unsubstituted aryl, heteroaryl or heteroarylphenyl group, or alkyl, alkoxy, cyano group, or hydrogen or halogen atom; n is integer of 0-2; and X represents substituted or unsubstituted (n+1)-valent aromatic hydrocarbon, heteroaromatic or heteroarylphenyl group. The 4-aminocarbazole compound provides an organic EL device exhibiting enhanced emitting efficiency and durability.Type: ApplicationFiled: October 25, 2012Publication date: October 2, 2014Applicant: TOSOH CORPORATIONInventors: Naoki Matsumoto, Takanori Miyazaki
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Publication number: 20140225097Abstract: A novel stilbene derivative is provided with motivation of providing a blue emissive material showing excellent color purity. The use of the stilbene derivative of the present invention allows the fabrication of a blue-emissive light-emitting element with excellent color purity. The invention also includes an electronic device equipped with a display portion in which the stilbene derivative is employed. The stilbene derivative of the present invention is represented by formula (1), in which Ar1 and Ar2 may form a 5-membered ring by being directly bonded to each other. In formula (1), A11 represents any one of substituents represented by general formulas (1-1) to (1-3). The variables shown in formula (1) and (1-1) to (1-3) are as defined in the specification.Type: ApplicationFiled: April 16, 2014Publication date: August 14, 2014Applicant: Semiconductor Energy Laboratory Co., Ltd.Inventors: Masakazu Egawa, Harue OSAKA, Sachiko KAWAKAMI, Nobuharu OHSAWA, Satoshi SEO, Ryoji NOMURA
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Publication number: 20140213798Abstract: It is an object of the present invention to provide a material having a high Tg and a wide energy gap. The present invention provides a spirofluorene derivative represented by General Formula 1. (In the formula, R1 is any one of hydrogen, an alkyl group having 1 to 4 carbon atoms, or a group represented by General Formula 2. Each of R2 and R3 is either hydrogen or an alkyl group having 1 to 4 carbon atoms and may be identical or different. R4 is an aryl group having 6 to 15 carbon atoms. Each of R5 and R6 is any one of hydrogen, an alkyl group having 1 to 4 carbon atoms, or an aryl group having 6 to 15 carbon atoms and may be identical or different.Type: ApplicationFiled: April 3, 2014Publication date: July 31, 2014Applicant: Semiconductor Energy Laboratory Co., Ltd.Inventors: Sachiko KAWAKAMI, Harue NAKASHIMA
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Publication number: 20140138632Abstract: An amine-based compound and an organic light-emitting diode including the amine-based compound are provided. The amine-based compound may be used between a pair of electrodes of an organic light-emitting diode. For example, the amine-based compound may be used in an emission layer and/or between the emission layer and an anode (for example, in a hole injection layer, a hole transport layer, a functional layer having a hole injection ability and a hole transport ability). Accordingly, an organic light-emitting diode including a first electrode, a second electrode facing the first electrode, and an organic layer that is interposed between the first electrode and the second electrode, and includes the amine-based compound is provided.Type: ApplicationFiled: March 13, 2013Publication date: May 22, 2014Inventors: Young-Kook Kim, Seok-Hwan Hwang, Hye-Jin Jung, Jun-Ha Park, Eun-Young Lee, Jin-O Lim, Sang-Hyun Han, Eun-Jae Jeong, Soo-Yon Kim, Jong-Hyuk Lee
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Publication number: 20140130870Abstract: Triarylamine compounds of formula I and methods of using them as hole conducting materials in solar cells. Solar cells that contain these materials.Type: ApplicationFiled: October 25, 2013Publication date: May 15, 2014Applicant: BASF SEInventor: Hermann BERGMANN
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Publication number: 20140117329Abstract: An amine-based compound and an organic light-emitting device including the amine-based compound are provided.Type: ApplicationFiled: August 5, 2013Publication date: May 1, 2014Inventors: Ji-Youn LEE, Yoon-Hyun KWAK, Bum-Woo PARK, Sun-Young LEE, Jong-Won CHOI, WHA-IL CHOI, So-Yeon KIM
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Patent number: 8704215Abstract: A novel stilbene derivative is provided with motivation of providing a blue emissive material showing excellent color purity. The use of the stilbene derivative of the present invention allows the fabrication of a blue-emissive light-emitting element with excellent color purity. The invention also includes an electronic device equipped with a display portion in which the stilbene derivative is employed. The stilbene derivative of the present invention is represented by formula (1), in which Ar1 and Ar2 may form a 5-membered ring by being directly bonded to each other. In formula (1), A11 represents any one of substituents represented by general formulas (1-1) to (1-3). The variables shown in formula (1) and (1-1) to (1-3) are as defined in the specification.Type: GrantFiled: March 10, 2012Date of Patent: April 22, 2014Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Masakazu Egawa, Harue Osaka, Sachiko Kawakami, Nobuharu Ohsawa, Satoshi Seo, Ryoji Nomura
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Patent number: 8704242Abstract: An object is to provide an aromatic amine compound with excellent heat resistance. Another object is to provide a light emitting element, a light emitting device, and an electronic device with excellent heat resistance. An aromatic amine compound represented by General Formula (1) is provided. The aromatic amine compound represented by General Formula (1) has a high glass transition point and excellent heat resistance. By using the aromatic amine compound represented by General Formula (1) for a light emitting element, a light emitting device, and an electronic device, a light emitting element, a light emitting device, and an electronic device with excellent heat resistance can be obtained.Type: GrantFiled: March 20, 2012Date of Patent: April 22, 2014Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Harue Nakashima, Sachiko Kawakami, Satoko Shitagaki, Satoshi Seo
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Publication number: 20140014916Abstract: Embodiments of the present invention are directed to a compound represented by Formula 1, and to an organic light-emitting device including the compound.Type: ApplicationFiled: February 13, 2013Publication date: January 16, 2014Applicant: SAMSUNG DISPLAY CO., LTD.Inventors: Sang-Hyun Han, Seok-Hwan Hwang, Young-Kook Kim, Hye-Jin Jung, Jin-O Lim, Soo-Yon Kim, Eun-Jae Jeong, Jun-Ha Park, Eun-Young Lee, Hee-Joo Ko, Jong-Hyuk Lee
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Patent number: 8603647Abstract: Disclosed is a composition including an anthracene derivative and a solvent and a method for fabricating a light-emitting element using the composition. The anthracene derivative has a diphenylanthracene moiety and a carbazole moiety linked to one of the phenyl groups of the diphenylanthracene moiety. The use of the composition enables the formation of a light-emitting element by a wet type method such as an ink-jet method, a spin coating method, and a dip coating method.Type: GrantFiled: September 11, 2012Date of Patent: December 10, 2013Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Sachiko Kawakami, Nobuharu Ohsawa, Harue Nakashima, Kumi Kojima, Satoshi Seo, Masakazu Egawa, Ryoji Nomura
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Publication number: 20130306941Abstract: An object is to provide a novel anthracene derivative. Another object is to provide a light-emitting element with high luminous efficiency. Yet another object is to provide a light-emitting element with a long lifetime. Still another object is to provide a light-emitting device and an electronic device having a long lifetime by using the light-emitting elements of the present invention. The anthracene derivative represented by General Formula (1) is provided. The ability of the anthracene derivative represented by General Formula (1) to exhibit high luminous efficiency allows the production of a light-emitting element with high luminous efficiency and a long lifetime.Type: ApplicationFiled: March 15, 2013Publication date: November 21, 2013Applicant: Semiconductor Energy Laboratory Co., Ltd.Inventor: Semiconductor Energy Laboratory Co., Ltd.
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Publication number: 20130270524Abstract: A compound represented by Formula 1 below may be used in an organic light emitting diode.Type: ApplicationFiled: October 2, 2012Publication date: October 17, 2013Applicant: SAMSUNG DISPLAY CO. LTD.Inventors: Jun-Ha Park, Seok-Hwan Hwang, Young-Kook Kim, Hye-Jin Jung, Eun-Young Lee, Jin-O Lim, Sang-Hyun Han, Eun-Jae Jeong, Soo-Yon Kim, Se-Jin Cho, Jong-Hyuk Lee
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Patent number: 8546792Abstract: It is an object to provide a noble anthracene derivative, a light emitting element with a high luminous efficiency, and further a light emitting element with a long lifetime. It is another object to provide a light emitting device and electronic device with a long lifetime by using the light emitting element. An anthracene derivative represented by General Formula (1) is provided. Since the anthracene derivative represented by General Formula (1) has a high luminous efficiency, when the anthracene derivative is used for a light emitting element, the light emitting element can have a high luminous efficiency. Further, when the anthracene derivative represented by General Formula (1) is used for a light emitting element, the light emitting element can have a long lifetime.Type: GrantFiled: January 27, 2011Date of Patent: October 1, 2013Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Masakazu Egawa, Harue Osaka, Sachiko Kawakami, Satoko Shitagaki
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Publication number: 20130228765Abstract: It is an object of the present invention to provide a material which is excellent in a hole injecting property and a hole transporting property, and to provide a light emitting element and a light emitting device using a material which is excellent in a hole injecting property and a hole transporting property. The present invention provides a carbazole derivative represented by a general formula (1). The carbazole derivative according to the present invention is excellent in the hole injecting property. By using the carbazole derivative according to the present invention as a hole injecting material for a hole injecting layer of a light emitting element, a driving voltage can be reduced. In addition, a lower driving voltage, improvement of the luminous efficiency, a longer life time, and higher reliability can be realized by applying the material to a light emitting element or a light emitting device.Type: ApplicationFiled: April 18, 2013Publication date: September 5, 2013Applicant: Semiconductor Energy Laboratory Co., Ltd.Inventors: Harue NAKASHIMA, Sachiko KAWAKAMI, Daisuke KUMAKI
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Publication number: 20130119355Abstract: A styryl-based compound represented by Formula 1, a composition containing the styryl-based compound, and an organic light-emitting diode (OLED) including the styryl-based compound: The styryl-based compound may exhibit high heat resistance and thus an OLED including the same may have low driving voltage, high brightness, high efficiency, and long lifetime.Type: ApplicationFiled: September 11, 2012Publication date: May 16, 2013Applicant: SAMSUNG DISPLAY CO., LTD.Inventors: Sang-Hyun Han, Seok-Hwan Hwang, Young-Kook Kim, Hye-Jin Jung, Jin-O Lim, Soo-Yon Kim, Dae-Yup Shin, Jong-Hyuk Lee
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Publication number: 20130112948Abstract: A heterocyclic compound represented by Formula 1A below and an organic light-emitting diode including the same: at least one of R1 to R7 is a group represented by Formula 1B below. in Formulae 1A and 1B, R1 to R9, Ar1, Ar2, A, B, a and b are the same as described in the detailed description section of the present application. The organic light-emitting diode including an organic layer including the heterocyclic compound has a low driving voltage, high luminescence efficiency, and a long lifetime.Type: ApplicationFiled: May 25, 2012Publication date: May 9, 2013Applicant: Samsung Mobile Display Co., Ltd.Inventors: Hye-Jin Jung, Seok-Hwan Hwang, Young-Kook Kim, Jin-O Lim, Sang-Hyun Han, Soo-Yon Kim, Jin-Young Yun, Jong-Hyuk Lee
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Publication number: 20130105769Abstract: A condensed-cyclic compound represented by Formula 1, and an organic light-emitting device including the condensed-cyclic compound. wherein R1 and R2, Ar1 through Ar4, L1 and L2, X1 and X2, and a and b are defined as in the specification.Type: ApplicationFiled: May 22, 2012Publication date: May 2, 2013Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.Inventors: Jin-O Lim, Seok-Hwan Hwang, Young-Kook Kim, Hye-Jin Jung, Sang-Hyun Han, Soo-Yon Kim, Hee-Joo Ko
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Patent number: 8431252Abstract: An object is to provide a novel anthracene derivative. Another object is to provide a light-emitting element with high luminous efficiency. Yet another object is to provide a light-emitting element with a long lifetime. Still another object is to provide a light-emitting device and an electronic device having a long lifetime by using the light-emitting elements of the present invention. The anthracene derivative represented by General Formula (1) is provided. The ability of the anthracene derivative represented by General Formula (1) to exhibit high luminous efficiency allows the production of a light-emitting element with high luminous efficiency and a long lifetime.Type: GrantFiled: January 27, 2012Date of Patent: April 30, 2013Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Masakazu Egawa, Harue Nakashima, Sachiko Kawakami, Tsunenori Suzuki, Ryoji Nomura
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Publication number: 20130087776Abstract: A compound for an organic photoelectric device, the compound being represented by the following Chemical Formula 1:Type: ApplicationFiled: December 3, 2012Publication date: April 11, 2013Inventors: Kyoung-Mi LEE, Dal-Ho HUH, Dong-Wan RYU, Sung-Hyun JUNG, Mi-Young CHAE
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Publication number: 20130087773Abstract: A highly efficient light-emitting element capable of providing a plurality of emission colors is provided, which does not easily deteriorate and can minimize a decrease in external quantum efficiency even when a light-emitting layer has a stacked structure. A light-emitting device, an electronic device, and a lighting device which have low power consumption and long lifetime are provided. A light-emitting element includes a plurality of light-emitting layers stacked between a pair of electrodes. The light-emitting layers each contain a host material and a guest material. The guest materials of the light-emitting layers are substances which have different HOMO levels but have substantially the same LUMO levels and emit light of different colors. A light-emitting device, an electronic device, and a lighting device are fabricated using the light-emitting element.Type: ApplicationFiled: October 4, 2012Publication date: April 11, 2013Applicant: Semiconductor Energy Laboratory Co., Ltd.Inventors: Hiroki Suzuki, Satoshi SEO, Sachiko KAWAKAMI, Tsunenori SUZUKI
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Publication number: 20130075670Abstract: Oligomers and/or polymers comprising a backbone comprising arylamine and fluorinated alkyleneoxy moieties which may be crosslinked. Ink formulations and devices can be formed from the oligomers or polymers, or corresponding monomers. Doped compositions can be formed. Charge injection and transport layers can be formed. Improved stability can be achieved in organic electronic devices such as OLEDs and OPVs.Type: ApplicationFiled: September 19, 2012Publication date: March 28, 2013Applicant: Plextronics, Inc.Inventor: Plextronics, Inc.
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Patent number: 8399880Abstract: Embodiments of the present invention are directed to heteroarylamine compounds represented by Formula 1, and organic light-emitting devices including the heteroarylamine compounds. The organic light-emitting devices using the heteroarylamine compounds have high-efficiency, low driving voltages, high luminance and long lifespans.Type: GrantFiled: August 26, 2010Date of Patent: March 19, 2013Assignee: Samsung Display Co., Ltd.Inventors: Young-Kook Kim, Seok-Hwan Hwang, Yoon-Hyun Kwak, Hye-Jin Jung, Jong-Hyuk Lee, Jin-O Lim, Chang-Ho Lee
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Patent number: 8394511Abstract: A compound for use in an organic light emitting device is represented by The compound has excellent electrical properties and charge transporting characteristics, and is therefore useful as a material for a hole injection layer, a hole transport layer, and an emission layer of phosphorescent and fluorescent devices for emitting light of all colors, including red, green, blue, and white. Organic light emitting devices using the compounds have high efficiency, low driving voltages, and high brightness.Type: GrantFiled: December 16, 2008Date of Patent: March 12, 2013Assignee: Samsung Display Co., Ltd.Inventors: Seok-Hwan Hwang, Young-Kook Kim, Yoon-Hyun Kwak, Jeoung-In Yi
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Publication number: 20120319091Abstract: 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.Type: ApplicationFiled: January 21, 2011Publication date: December 20, 2012Applicant: IDEMITSU KOSAN CO., LTD.Inventor: Tomoki Kato
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Publication number: 20120302762Abstract: A carbazole compound represented by General Formula (G1) is provided. In the formula, ? represents a phenylene group, Ar1 represents an alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted phenyl group, a substituted or unsubstituted naphthyl group, or a substituted or unsubstituted phenanthryl group, Ar2 represents hydrogen, a substituted or unsubstituted phenyl group, a substituted or unsubstituted naphthyl group, or a substituted or unsubstituted phenanthryl group, Ar3 represents a substituted or unsubstituted phenyl group, a substituted or unsubstituted naphthyl group, or a substituted or unsubstituted phenanthryl group, and R1 represents hydrogen, an alkyl group having 1 to 6 carbon atoms, or a substituted or unsubstituted phenyl group. Further, n is 0 or 1.Type: ApplicationFiled: May 25, 2012Publication date: November 29, 2012Inventors: Harue Osaka, Satoko Shitagaki, Nobuharu Ohsawa
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Patent number: 8298687Abstract: It is an object of the present invention to provide a novel material capable of realizing excellent color purity of blue, and a light emitting element and a light emitting device using the novel material. Further, it is an object of the present invention to provide which is highly reliable, and a light emitting element and a light emitting device using the novel material.Type: GrantFiled: September 21, 2011Date of Patent: October 30, 2012Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Sachiko Kawakami, Nobuharu Ohsawa, Harue Nakashima, Kumi Kojima, Satoshi Seo, Masakazu Egawa, Ryoji Nomura
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Patent number: 8298684Abstract: Provided are a compound represented by Formula 1 or 2 below and an organic light emitting device including an organic layer having the compound: where Ar1, Ar2, Ar3, R1, R2 and R3 are as described in the detailed description. Since the compound represented by Formula 1 or 2 has excellent electrical properties and excellent charge transport capabilities, the compound can be efficiently used as a hole injecting material, a hole transporting material, and/or an emitting material which is suitable for a fluorescent or phosphorescent organic light emitting device which can realize all colors such as red, green, blue, and white. Thus, an OLED including the compound can have high efficiency, high current density, low driving voltage, excellent brightness, and long lifetime.Type: GrantFiled: January 27, 2009Date of Patent: October 30, 2012Assignee: Samsung Display Co., Ltd.Inventors: Seok-Hwan Kwang, Young-Kook Kim, Yoon-Hyun Kwak, Jeoung-In Yi, Hye-Lim Lee
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Patent number: 8288012Abstract: The present invention provides novel anthracene derivatives. In particular, the present invention provides light-emitting elements with high luminous efficiency, and light-emitting elements with long lifetime. Further, the present invention provides light-emitting devices and electronic devices having long lifetime by using these light-emitting elements. An anthracene derivative represented by the general formula (1) is provided. In addition, since the anthracene derivative represented by the general formula (1) has high luminous efficiency, a light-emitting element using the anthracene derivative represented by the general formula (1) can also have high luminous efficiency. By using the anthracene derivative represented by the general formula (1), light-emitting elements with long lifetime can be provided.Type: GrantFiled: December 21, 2007Date of Patent: October 16, 2012Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Hiroko Nomura, Sachiko Kawakami, Nobuharu Ohsawa, Tsunenori Suzuki
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Publication number: 20120175598Abstract: The present invention provides a carbazole derivative of formula (I) for an organic electroluminescent device: wherein Y represents a heteroatom selected from N, O, P, S, or a bicyclic or tricyclic heterocyclic ring; and Ar1 and Ar2 each independently represent an alkyl or aryl substituted or unsubstituted aromatic hydrocarbon, or an alkyl or aryl substituted or unsubstituted heterocyclic aromatic hydrocarbon.Type: ApplicationFiled: December 5, 2011Publication date: July 12, 2012Applicant: E-RAY OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Banumathy Balaganesan, Kun-Feng Chiang, Huang-Ming Guo, Po-Wei Hsu
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Publication number: 20120168741Abstract: A novel stilbene derivative is provided with motivation of providing a blue emissive material showing excellent color purity. The use of the stilbene derivative of the present invention allows the fabrication of a blue-emissive light-emitting element with excellent color purity. The invention also includes an electronic device equipped with a display portion in which the stilbene derivative is employed. The stilbene derivative of the present invention is represented by formula (1), in which Ar1 and Ar2 may form a 5-membered ring by being directly bonded to each other. In formula (1), A11 represents any one of substituents represented by general formulas (1-1) to (1-3). The variables shown in formula (1) and (1-1) to (1-3) are as defined in the specification.Type: ApplicationFiled: March 10, 2012Publication date: July 5, 2012Inventors: Masakazu Egawa, Harue Osaka, Sachiko Kawakami, Nobuharu Ohsawa, Satoshi Seo, Ryoji Nomura
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Patent number: 8188315Abstract: Provided are an organic light emitting device including: a substrate; a first electrode; a second electrode; and an organic layer interposed between the first electrode and the second electrode and including an emission layer, wherein one of the first electrode and the second electrode is a reflective electrode and the other is a semitransparent or transparent electrode, and wherein the organic layer includes a layer having at least one of the compounds having at least one carbazole group, and a flat panel display device including the organic light emitting device. The organic light emitting device has low driving voltage, excellent current density, high brightness, excellent color purity, high efficiency, and long lifetime.Type: GrantFiled: May 29, 2007Date of Patent: May 29, 2012Assignee: Samsung Mobile Display Co., Ltd.Inventors: Seok-Hwan Hwang, Young-Kook Kim, Yoon-Hyun Kwak, Jong-Hyuk Lee, Kwan-Hee Lee, Min-Seung Chun
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Patent number: 8178885Abstract: An object is to provide an aromatic amine compound with excellent heat resistance. Another object is to provide a light emitting element, a light emitting device, and an electronic device with excellent heat resistance. An aromatic amine compound represented by General Formula (1) is provided. The aromatic amine compound represented by General Formula (1) has a high glass transition point and excellent heat resistance. By using the aromatic amine compound represented by General Formula (1) for a light emitting element, a light emitting device, and an electronic device, a light emitting element, a light emitting device, and an electronic device with excellent heat resistance can be obtained.Type: GrantFiled: August 18, 2010Date of Patent: May 15, 2012Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Harue Nakashima, Sachiko Kawakami, Satoko Shitagaki, Satoshi Seo
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Patent number: 8110980Abstract: A novel anthracene derivative represented by General Formula (1) is provided, which enables the production of a light-emitting element with high luminous efficiency and a long lifetime. A high-performance light-emitting device and electronic device in which the anthracene derivative is employed are also disclosed. The anthracene derivative of the present invention is represented by General Formula (1), in which the unit A represents any one of substituents represented by General Formulae (1-1) to (1-3). The variables shown in Formulae (1) and (1-1) to (1-3) are defined in the specification.Type: GrantFiled: March 4, 2010Date of Patent: February 7, 2012Assignee: Semiconductor Energy laboratory Co., Ltd.Inventors: Masakazu Egawa, Sachiko Kawakami, Harue Osaka, Tsunenori Suzuki, Ryoji Nomura
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Patent number: 8106392Abstract: An object is to provide a novel anthracene derivative. Another object is to provide a light-emitting element with high luminous efficiency. Yet another object is to provide a light-emitting element with a long lifetime. Still another object is to provide a light-emitting device and an electronic device having a long lifetime by using the light-emitting elements of the present invention. The anthracene derivative represented by General Formula (1) is provided. The ability of the anthracene derivative represented by General Formula (1) to exhibit high luminous efficiency allows the production of a light-emitting element with high luminous efficiency and a long lifetime.Type: GrantFiled: November 23, 2010Date of Patent: January 31, 2012Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Masakazu Egawa, Harue Nakashima, Sachiko Kawakami, Tsunenori Suzuki, Ryoji Nomura
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Publication number: 20120013247Abstract: A dendrimer and an organic light-emitting device including an organic layer having the dendrimer.Type: ApplicationFiled: July 8, 2011Publication date: January 19, 2012Applicant: Samsung Mobile Display Co., Ltd.Inventors: Jeoung-In YI, Yoon-Hyun Kwak, Seung-Gak Yang, Hee-Yeon Kim, Jae-Yong Lee
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Publication number: 20110297235Abstract: The present invention relates to the use of compounds of the general formula I in which A1, A2, A3 are each independently divalent organic units which may comprise one, two or three optionally substituted aromatic or heteroaromatic groups, where, in the case of two or three aromatic or heteroaromatic groups, two of these groups in each case are joined to one another by a chemical bond and/or via a divalent alkyl radical, R1, R2, R3 are each independently R, OR, NR2, A3-OR or A3-NR2 substituents, R is alkyl, aryl or a monovalent organic radical which may comprise one, two or three optionally substituted aromatic or heteroaromatic groups, where, in the case of two or three aromatic or heteroaromatic groups, two of these groups in each case are joined to one another by a chemical bond and/or via a divalent alkyl or NR? radical, R? is alkyl, aryl or a monovalent organic radical which may comprise one, two or three optionally substituted aromatic or heteroaromatic groups, where, in the case of two or three arType: ApplicationFiled: February 15, 2010Publication date: December 8, 2011Applicant: BASF SEInventor: Hermann Bergmann
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Patent number: 8039122Abstract: It is an object of the present invention to provide a novel material capable of realizing excellent color purity of blue, and a light emitting element and a light emitting device using the novel material. Further, it is an object of the present invention to provide which is highly reliable, and a light emitting element and a light emitting device using the novel material.Type: GrantFiled: March 24, 2006Date of Patent: October 18, 2011Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Sachiko Kawakami, Nobuharu Ohsawa, Harue Nakashima, Kumi Kojima, Satoshi Seo, Masakazu Egawa, Ryoji Nomura
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Patent number: 8021764Abstract: A phenylcarbazole-based compound is represented by Formula 1, and has superior electric properties and charge transport abilities, and thus is useful as a hole injection material, a hole transport material, and/or an emitting material which is suitable for fluorescent and phosphorescent devices of all colors, including red, green, blue, and white colors. The phenylcarbazole-based compound is synthesized by reacting carbazole with diamine. The organic electroluminescent device manufactured using the phenylcarbazole-based compound has high efficiency, low voltage, high luminance, and a long lifespan.Type: GrantFiled: November 25, 2005Date of Patent: September 20, 2011Assignee: Samsung Mobile Display Co., Ltd.Inventors: Seok-Hwan Hwang, Young-Kook Kim, Chang-Ho Lee, Seok-Jong Lee, Seung-Gak Yang, Hee-Yeon Kim
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Patent number: 8021765Abstract: A phenylcarbazole-based compound is represented by Formula 1, and has superior electric properties and charge transport abilities, and thus is useful as a hole injection material, a hole transport material, and/or an emitting material which is suitable for fluorescent and phosphorescent devices of all colors, including red, green, blue, and white colors. The phenylcarbazole-based compound is synthesized by reacting carbazole with diamine. The organic electroluminescent device manufactured using the phenylcarbazole-based compound has high efficiency, low voltage, high luminance, and a long lifespan.Type: GrantFiled: October 31, 2007Date of Patent: September 20, 2011Assignee: Samsung Mobile Display Co., Ltd.Inventors: Seok-Hwan Hwang, Young-Kook Kim, Chang-Ho Lee, Seok-Jong Lee, Seung-Gak Yang, Hee-Yeon Kim