One Of The Benzene Rings And An Additional Carbocyclic Ring Bonded Directly To The Same Acyclic Nitrogen Patents (Class 548/442)
  • Patent number: 9761809
    Abstract: A compound represented by Formula 1 below, and an organic light-emitting device including the compound:
    Type: Grant
    Filed: April 10, 2015
    Date of Patent: September 12, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jongwoo Kim, Youngkook Kim, Seunggak Yang, Jino Lim, Hyungseok Jang, Seokhwan Hwang
  • Patent number: 8921832
    Abstract: 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: Grant
    Filed: October 8, 2009
    Date of Patent: December 30, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Dae-Woong Lee, Sung-Kil Hong, Tae-Yoon Park, Yeon-Hwan Kim, Seong-So Kim
  • Publication number: 20140374722
    Abstract: 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: Application
    Filed: January 14, 2013
    Publication date: December 25, 2014
    Inventors: Dongha Kim, Sunhee Lee, Yeonhee Choi, Soungyun Mun, Jungcheol Park, Yongwook Park, Heesun Ji, Junghwan Park, Bumsung Lee, Sunpil Hwang
  • Patent number: 8911885
    Abstract: 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: Grant
    Filed: August 16, 2010
    Date of Patent: December 16, 2014
    Assignee: 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
  • Publication number: 20140364626
    Abstract: 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: Application
    Filed: August 22, 2014
    Publication date: December 11, 2014
    Inventors: Harue Nakashima, Sachiko KAWAKAMI, Kumi KOJIMA, Ryoji NOMURA, Nobuharu OHSAWA
  • Publication number: 20140353617
    Abstract: 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: Application
    Filed: November 22, 2013
    Publication date: December 4, 2014
    Applicant: 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
  • Publication number: 20140332772
    Abstract: 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: Application
    Filed: November 8, 2013
    Publication date: November 13, 2014
    Applicant: 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
  • Patent number: 8865322
    Abstract: A dendrimer and an organic light-emitting device including an organic layer having the dendrimer.
    Type: Grant
    Filed: July 8, 2011
    Date of Patent: October 21, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jeoung-In Yi, Yoon-Hyun Kwak, Seung-Gak Yang, Hee-Yeon Kim, Jae-Yong Lee
  • Publication number: 20140296519
    Abstract: 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: Application
    Filed: October 25, 2012
    Publication date: October 2, 2014
    Applicant: TOSOH CORPORATION
    Inventors: Naoki Matsumoto, Takanori Miyazaki
  • Publication number: 20140225097
    Abstract: 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: Application
    Filed: April 16, 2014
    Publication date: August 14, 2014
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Masakazu Egawa, Harue OSAKA, Sachiko KAWAKAMI, Nobuharu OHSAWA, Satoshi SEO, Ryoji NOMURA
  • Publication number: 20140213798
    Abstract: 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: Application
    Filed: April 3, 2014
    Publication date: July 31, 2014
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Sachiko KAWAKAMI, Harue NAKASHIMA
  • Publication number: 20140138632
    Abstract: 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: Application
    Filed: March 13, 2013
    Publication date: May 22, 2014
    Inventors: 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
  • Publication number: 20140130870
    Abstract: Triarylamine compounds of formula I and methods of using them as hole conducting materials in solar cells. Solar cells that contain these materials.
    Type: Application
    Filed: October 25, 2013
    Publication date: May 15, 2014
    Applicant: BASF SE
    Inventor: Hermann BERGMANN
  • Publication number: 20140117329
    Abstract: An amine-based compound and an organic light-emitting device including the amine-based compound are provided.
    Type: Application
    Filed: August 5, 2013
    Publication date: May 1, 2014
    Inventors: Ji-Youn LEE, Yoon-Hyun KWAK, Bum-Woo PARK, Sun-Young LEE, Jong-Won CHOI, WHA-IL CHOI, So-Yeon KIM
  • Patent number: 8704215
    Abstract: 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: Grant
    Filed: March 10, 2012
    Date of Patent: April 22, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Masakazu Egawa, Harue Osaka, Sachiko Kawakami, Nobuharu Ohsawa, Satoshi Seo, Ryoji Nomura
  • Patent number: 8704242
    Abstract: 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: Grant
    Filed: March 20, 2012
    Date of Patent: April 22, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Harue Nakashima, Sachiko Kawakami, Satoko Shitagaki, Satoshi Seo
  • Publication number: 20140014916
    Abstract: 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: Application
    Filed: February 13, 2013
    Publication date: January 16, 2014
    Applicant: 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
  • Patent number: 8603647
    Abstract: 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: Grant
    Filed: September 11, 2012
    Date of Patent: December 10, 2013
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Sachiko Kawakami, Nobuharu Ohsawa, Harue Nakashima, Kumi Kojima, Satoshi Seo, Masakazu Egawa, Ryoji Nomura
  • Publication number: 20130306941
    Abstract: 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: Application
    Filed: March 15, 2013
    Publication date: November 21, 2013
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Semiconductor Energy Laboratory Co., Ltd.
  • Publication number: 20130270524
    Abstract: A compound represented by Formula 1 below may be used in an organic light emitting diode.
    Type: Application
    Filed: October 2, 2012
    Publication date: October 17, 2013
    Applicant: 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
  • Patent number: 8546792
    Abstract: 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: Grant
    Filed: January 27, 2011
    Date of Patent: October 1, 2013
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Masakazu Egawa, Harue Osaka, Sachiko Kawakami, Satoko Shitagaki
  • Publication number: 20130228765
    Abstract: 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: Application
    Filed: April 18, 2013
    Publication date: September 5, 2013
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Harue NAKASHIMA, Sachiko KAWAKAMI, Daisuke KUMAKI
  • Publication number: 20130119355
    Abstract: 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: Application
    Filed: September 11, 2012
    Publication date: May 16, 2013
    Applicant: 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
  • Publication number: 20130112948
    Abstract: 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: Application
    Filed: May 25, 2012
    Publication date: May 9, 2013
    Applicant: 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
  • Publication number: 20130105769
    Abstract: 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: Application
    Filed: May 22, 2012
    Publication date: May 2, 2013
    Applicant: 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
  • Patent number: 8431252
    Abstract: 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: Grant
    Filed: January 27, 2012
    Date of Patent: April 30, 2013
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Masakazu Egawa, Harue Nakashima, Sachiko Kawakami, Tsunenori Suzuki, Ryoji Nomura
  • Publication number: 20130087773
    Abstract: 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: Application
    Filed: October 4, 2012
    Publication date: April 11, 2013
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hiroki Suzuki, Satoshi SEO, Sachiko KAWAKAMI, Tsunenori SUZUKI
  • Publication number: 20130087776
    Abstract: A compound for an organic photoelectric device, the compound being represented by the following Chemical Formula 1:
    Type: Application
    Filed: December 3, 2012
    Publication date: April 11, 2013
    Inventors: Kyoung-Mi LEE, Dal-Ho HUH, Dong-Wan RYU, Sung-Hyun JUNG, Mi-Young CHAE
  • Publication number: 20130075670
    Abstract: 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: Application
    Filed: September 19, 2012
    Publication date: March 28, 2013
    Applicant: Plextronics, Inc.
    Inventor: Plextronics, Inc.
  • Patent number: 8399880
    Abstract: 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: Grant
    Filed: August 26, 2010
    Date of Patent: March 19, 2013
    Assignee: 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
  • Patent number: 8394511
    Abstract: 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: Grant
    Filed: December 16, 2008
    Date of Patent: March 12, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seok-Hwan Hwang, Young-Kook Kim, Yoon-Hyun Kwak, Jeoung-In Yi
  • Publication number: 20120319091
    Abstract: 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: Application
    Filed: January 21, 2011
    Publication date: December 20, 2012
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventor: Tomoki Kato
  • Publication number: 20120302762
    Abstract: 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: Application
    Filed: May 25, 2012
    Publication date: November 29, 2012
    Inventors: Harue Osaka, Satoko Shitagaki, Nobuharu Ohsawa
  • Patent number: 8298684
    Abstract: 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: Grant
    Filed: January 27, 2009
    Date of Patent: October 30, 2012
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seok-Hwan Kwang, Young-Kook Kim, Yoon-Hyun Kwak, Jeoung-In Yi, Hye-Lim Lee
  • Patent number: 8298687
    Abstract: 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: Grant
    Filed: September 21, 2011
    Date of Patent: October 30, 2012
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Sachiko Kawakami, Nobuharu Ohsawa, Harue Nakashima, Kumi Kojima, Satoshi Seo, Masakazu Egawa, Ryoji Nomura
  • Patent number: 8288012
    Abstract: 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: Grant
    Filed: December 21, 2007
    Date of Patent: October 16, 2012
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hiroko Nomura, Sachiko Kawakami, Nobuharu Ohsawa, Tsunenori Suzuki
  • Publication number: 20120175598
    Abstract: 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: Application
    Filed: December 5, 2011
    Publication date: July 12, 2012
    Applicant: E-RAY OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Banumathy Balaganesan, Kun-Feng Chiang, Huang-Ming Guo, Po-Wei Hsu
  • Publication number: 20120168741
    Abstract: 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: Application
    Filed: March 10, 2012
    Publication date: July 5, 2012
    Inventors: Masakazu Egawa, Harue Osaka, Sachiko Kawakami, Nobuharu Ohsawa, Satoshi Seo, Ryoji Nomura
  • Patent number: 8188315
    Abstract: 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: Grant
    Filed: May 29, 2007
    Date of Patent: May 29, 2012
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Seok-Hwan Hwang, Young-Kook Kim, Yoon-Hyun Kwak, Jong-Hyuk Lee, Kwan-Hee Lee, Min-Seung Chun
  • Patent number: 8178885
    Abstract: 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: Grant
    Filed: August 18, 2010
    Date of Patent: May 15, 2012
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Harue Nakashima, Sachiko Kawakami, Satoko Shitagaki, Satoshi Seo
  • Patent number: 8110980
    Abstract: 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: Grant
    Filed: March 4, 2010
    Date of Patent: February 7, 2012
    Assignee: Semiconductor Energy laboratory Co., Ltd.
    Inventors: Masakazu Egawa, Sachiko Kawakami, Harue Osaka, Tsunenori Suzuki, Ryoji Nomura
  • Patent number: 8106392
    Abstract: 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: Grant
    Filed: November 23, 2010
    Date of Patent: January 31, 2012
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Masakazu Egawa, Harue Nakashima, Sachiko Kawakami, Tsunenori Suzuki, Ryoji Nomura
  • Publication number: 20120013247
    Abstract: A dendrimer and an organic light-emitting device including an organic layer having the dendrimer.
    Type: Application
    Filed: July 8, 2011
    Publication date: January 19, 2012
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Jeoung-In YI, Yoon-Hyun Kwak, Seung-Gak Yang, Hee-Yeon Kim, Jae-Yong Lee
  • Publication number: 20110297235
    Abstract: 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 ar
    Type: Application
    Filed: February 15, 2010
    Publication date: December 8, 2011
    Applicant: BASF SE
    Inventor: Hermann Bergmann
  • Patent number: 8039122
    Abstract: 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: Grant
    Filed: March 24, 2006
    Date of Patent: October 18, 2011
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Sachiko Kawakami, Nobuharu Ohsawa, Harue Nakashima, Kumi Kojima, Satoshi Seo, Masakazu Egawa, Ryoji Nomura
  • Patent number: 8021765
    Abstract: 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: Grant
    Filed: October 31, 2007
    Date of Patent: September 20, 2011
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Seok-Hwan Hwang, Young-Kook Kim, Chang-Ho Lee, Seok-Jong Lee, Seung-Gak Yang, Hee-Yeon Kim
  • Patent number: 8021764
    Abstract: 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: Grant
    Filed: November 25, 2005
    Date of Patent: September 20, 2011
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Seok-Hwan Hwang, Young-Kook Kim, Chang-Ho Lee, Seok-Jong Lee, Seung-Gak Yang, Hee-Yeon Kim
  • Publication number: 20110193074
    Abstract: 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: Application
    Filed: October 8, 2009
    Publication date: August 11, 2011
    Inventors: Dae-Woong Lee, Sung-Kil Hong, Tae-Yoon Park, Yeon-Hwan Kim, Seong-So Kim
  • Publication number: 20110121275
    Abstract: 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: Application
    Filed: January 27, 2011
    Publication date: May 26, 2011
    Inventors: Masakazu Egawa, Harue Osaka, Sachiko Kawakami, Satoko Shitagaki
  • Publication number: 20110084256
    Abstract: A condensed-cyclic compound represented by Formula 1 below and an organic light emitting diode including the condensed-cyclic compound:
    Type: Application
    Filed: September 30, 2010
    Publication date: April 14, 2011
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Hee-Yeon Kim, Seung-Gak Yang, Kwan-Hee Lee