Patents Assigned to SFC Co., Ltd.
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Patent number: 11158811Abstract: In the organic electroluminescent device having at least an anode, a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer and a cathode in this order, the hole injection layer includes an arylamine compound of the following general formula (1) and an electron acceptor. In the formula, Ar1 to Ar4 may be the same or different, and represent a substituted or unsubstituted aromatic hydrocarbon group, a substituted or unsubstituted aromatic heterocyclic group, or a substituted or unsubstituted condensed polycyclic aromatic group.Type: GrantFiled: December 1, 2015Date of Patent: October 26, 2021Assignees: Hodogaya Chemical Co., Ltd., SFC Co., Ltd.Inventors: Shuichi Hayashi, Naoaki Kabasawa, Daizou Kanda, Shunji Mochizuki, Soon-wook Cha, Sang-woo Park, Ju-man Song, Kyung-seok Jeon
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Publication number: 20210305514Abstract: Disclosed is a polycyclic aromatic compound that can be employed in an organic layer of an organic electroluminescent device. Also disclosed is a highly efficient organic electroluminescent device including the polycyclic aromatic compound. The use of the polycyclic aromatic compound significantly improves the luminous efficiency of the device.Type: ApplicationFiled: March 19, 2021Publication date: September 30, 2021Applicant: SFC CO., LTD.Inventors: Kyeong-hyeon KIM, Se-jin LEE, Yeong-tae CHOI, Ji-yung KIM, Kyung-tae KIM, Myeong-jun KIM
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Patent number: 11133472Abstract: The present disclosure relates to an organic light-emitting diode and, more particularly, to an organic-light-emitting diode comprising: a first electrode; a second electrode facing the first electrode; and a light-emitting layer intercalated between the first electrode and the second electrode, wherein the light-emitting layer comprises at least one of the amine compounds represented by the following Chemical Formula A and at least one of the anthracene compounds represented by the following Chemical Formula B or C. The structures of Chemical Formulas A to C are the same as in the specification.Type: GrantFiled: September 14, 2017Date of Patent: September 28, 2021Assignee: SFC CO., LTD.Inventors: Soon-Wook Cha, Sang-Woo Park, Jung-Ho Yoo, Ji-Hwan Kim, Sung Woo Kim, Hyeon Jun Jo, Young-Hwan Park
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Patent number: 11075343Abstract: Disclosed is an organic light emitting compound represented by Formula 1: HAr1—(L)n—HAr2??(1); an organic light emitting device including the organic light emitting compound of Formula 1: and an organic light emitting device including the organic light emitting compound of Formula 1 as a first compound and a second compound represented by Formula 2: HAr3—(L)n—HAr4??(2) .Type: GrantFiled: January 13, 2017Date of Patent: July 27, 2021Assignee: SFC CO., LTD.Inventors: Se-jin Lee, Taejung Yu, Seok-bae Park, Byung-sun Yang, Su-Jin Lee, Bong-Hyang Lee, Yeongtae Choi
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Patent number: 11041812Abstract: The present disclosure relates to a fluorogenic pH-sensitive dye and a film for detecting pH using the fluorogenic pH-sensitive dye on a polymer film. The fluorogenic pH-sensitive dye includes an aryl compound having a sulfonyl group (—SO2) and an agarose compound covalently bonded to the sulfonyl group (—SO2) of the aryl compound.Type: GrantFiled: January 12, 2018Date of Patent: June 22, 2021Assignee: SFC CO., LTD.Inventors: Moon-Chan Hwang, Jong-Tae Je
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Publication number: 20210167293Abstract: Disclosed are polycyclic aromatic compounds that can be employed in various organic layers of organic electroluminescent devices. Also disclosed are organic electroluminescent devices including the polycyclic aromatic compounds. The organic electroluminescent devices are highly efficient and long lasting and have greatly improved luminous efficiency.Type: ApplicationFiled: February 10, 2021Publication date: June 3, 2021Applicant: SFC CO., LTD.Inventors: SungHoon JOO, Ji-Hwan KIM, Byung-sun YANG, Hyeon Jun JO, Sungeun CHOI, Su-jin KIM, Bong-Ki SHIN
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Patent number: 10998505Abstract: Disclosed herein is an organic light-emitting diode, comprising: a first electrode, a second electrode opposite the first electrode, and a light-emitting layer and an electron-density-controlling layer in that order between the first electrode and the second electrode, wherein the electron-density-controlling layer includes at least one selected from among compounds represented by Chemical Formulas A to D, and the light-emitting layer includes at least one anthracene compound represented by Chemical Formula H. The electron-density-controlling layer may be disposed between the light-emitting layer and an electron transport layer.Type: GrantFiled: July 5, 2016Date of Patent: May 4, 2021Assignee: SFC CO., LTD.Inventors: Soon-Wook Cha, Young-Hwan Park, Seo-Yeon Yoon, So Young Shim
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Patent number: 10982262Abstract: The present invention relates to a quencher having a quenching effect on a fluorescent material exhibiting luminescence characteristics at an excited energy level, and various uses thereof.Type: GrantFiled: November 23, 2018Date of Patent: April 20, 2021Assignee: SFC CO., LTD.Inventors: Do-Min Lee, Seung-Soo Lee, Jin-Hee Park, Sun-Ho Kim, Goutam Masanta, Jong-Tae Je
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Patent number: 10981938Abstract: Disclosed are polycyclic aromatic compounds that can be employed in various organic layers of organic electroluminescent devices. Also disclosed are organic electroluminescent devices including the polycyclic aromatic compounds. The organic electroluminescent devices are highly efficient and long lasting and have greatly improved luminous efficiency.Type: GrantFiled: November 19, 2019Date of Patent: April 20, 2021Assignee: SFC Co., Ltd.Inventors: SungHoon Joo, Ji-Hwan Kim, Byung-sun Yang, Hyeon Jun Jo, Sungeun Choi, Su-jin Kim, Bong-Ki Shin
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Patent number: 10957865Abstract: Disclosed is an organic light emitting compound represented by Formula I: HAr1-(L)n-HAr2??(I). Also disclosed is an organic light emitting diode including the organic light emitting compound. Particularly, the organic light emitting diode employs the organic light emitting compound as a material for electron injection and transport. The organic light emitting diode can be driven at a low voltage and has improved life characteristics compared to conventional organic light emitting diodes. Due to these advantages, the organic light emitting diode is useful in a variety of industrial applications, including displays and lighting systems.Type: GrantFiled: July 26, 2017Date of Patent: March 23, 2021Assignee: SFC CO., LTD.Inventors: Yeongtae Choi, Se-jin Lee, Seok-bae Park, Taejung Yu, Byung-sun Yang, Dajung Lee
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Patent number: 10950814Abstract: The present disclosure relates to an organic light-emitting diode: comprising a first electrode; a second electrode facing the first electrode; and a hole transport layer and a light-emitting layer disposed in that order between the first and the second electrode, wherein the light-emitting layer includes a host and a hole assistant material represented by the following Chemical Formula A, the hole assistant material having a highest occupied molecular orbital (HOMO) energy level lower in absolute value than that of the host.Type: GrantFiled: November 8, 2016Date of Patent: March 16, 2021Assignee: SFC CO., LTD.Inventors: Young-Hwan Park, Seo-Yeon Yoon, Chang-Hee Lee, So Young Shim
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Patent number: 10947449Abstract: The present invention relates to an organic light-emitting diode exhibiting high efficiency and longevity. The organic light-emitting diode comprises: a first electrode; a second electrode facing the first electrode; and a light-emitting layer interposed between the first electrode and the second electrode, wherein the light-emitting layer contains at least one of the amine compounds represented by Chemical Formula A or Chemical Formula B and at least one of the compounds represented by Chemical Formulas H1 to H7, Chemical Formulas A, B, and H1 to H7 being the same as in the specification.Type: GrantFiled: November 6, 2015Date of Patent: March 16, 2021Assignee: SFC CO., LTD.Inventors: Hee-Dae Kim, Seok-Bae Park, Yoona Shin, Yu-Rim Lee, Sang-Woo Park, Soon-Wook Cha
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Patent number: 10950802Abstract: The present invention relates to an organic light-emitting diode which can operate at a low voltage and has a long lifespan compound and, more particular, to an organic light-emitting diode, comprising: a first electrode; a second electrode facing the first electrode; and a light-emitting layer and an electron transport layer sequentially arranged between the first and the second electrode, wherein the light-emitting layer contains at least one of the amine compounds represented by following Chemical Formula A or Chemical Formula B, and the electron transport layer contains at least one of the compounds represented by the following Chemical Formula E. The structures of Chemical Formulas A, B, and E are as shown in the specification.Type: GrantFiled: May 27, 2016Date of Patent: March 16, 2021Assignee: SFC CO., LTD.Inventors: Young-Hwan Park, Seo-Yeon Yoon, Soon-Wook Cha, Sung-Keun Choi, Si-In Kim
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Publication number: 20210057655Abstract: Disclosed is an organic light emitting compound represented by Formula I: HAr1-(L)n-HAr2??(I) Also disclosed is an organic light emitting diode including the organic light emitting compound. Particularly, the organic light emitting diode employs the organic light emitting compound as a material for electron injection and transport. The organic light emitting diode can be driven at a low voltage and has improved life characteristics compared to conventional organic light emitting diodes. Due to these advantages, the organic light emitting diode is useful in a variety of industrial applications, including displays and lighting systems.Type: ApplicationFiled: October 29, 2020Publication date: February 25, 2021Applicant: SFC CO., LTD.Inventors: Yeongtae CHOI, Se-jin LEE, Seok-bae PARK, Taejung YU, Byung-sun YANG, Dajung LEE
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Patent number: 10892420Abstract: An organic electroluminescent device having low driving voltage, high luminous efficiency, and a long lifetime is provided by combining various materials for an organic EL device, which are excellent, as materials for an organic electroluminescent device having high efficiency and high durability, in hole and electron injection/transport performances, electron blocking ability, stability in a thin-film state and durability, so as to allow the respective materials to effectively reveal their characteristics. In the organic electroluminescent device having at least an anode, a hole transport layer, a light emitting layer, an electron transport layer and a cathode in this order, the hole transport layer includes an arylamine compound represented by the following general formula (1), and the light emitting layer includes an amine derivative of the following general formula (2) having a condensed ring structure.Type: GrantFiled: November 6, 2015Date of Patent: January 12, 2021Assignees: Hodogaya Chemical Co., Ltd., SFC Co., Ltd.Inventors: Shuichi Hayashi, Naoaki Kabasawa, Soon-wook Cha, Sang-woo Park, Ju-man Song, Kyung-seok Jeon
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Publication number: 20200395553Abstract: Disclosed is an organic electroluminescent device that employs a compound represented by Formula A-1 or A-2: and a compound represented by Formula B: The organic electroluminescent device has excellent luminescent properties such as high color purity and long lifetime.Type: ApplicationFiled: June 3, 2020Publication date: December 17, 2020Applicant: SFC CO., LTD.Inventors: Seok-bae PARK, Yu-rim LEE, Hee-dae KIM, Seoungeun WOO, Dong Myung PARK
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Patent number: 10818844Abstract: The organic EL device of the present invention has an anode, a hole transport layer, a luminous layer, an electron transport layer, and a cathode in this order, and the hole transport layer contains an arylamine compound represented by the following general formula (1): where Ar1 to Ar4 each represent a monovalent aromatic hydrocarbon group or a monovalent aromatic heterocyclic group.Type: GrantFiled: July 8, 2015Date of Patent: October 27, 2020Assignees: HODOGAYA CHEMICAL CO., LTD., SFC CO., LTD.Inventors: Norimasa Yokoyama, Takeshi Yamamoto, Shuichi Hayashi, Hideyoshi Kitahara
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Patent number: 10797259Abstract: Disclosed is an organic light-emitting diode, comprising: a first electrode; a second electrode facing the first electrode; and a light-emitting layer interposed therebetween, wherein the light-emitting layer contains at least one selected from among the amine compounds represented by the following Chemical Formula A or Chemical Formula B and the pyrene compound represented by the following Chemical Formula C, plus the anthracene compound represented by the following Chemical Formula D. The structures of Chemical Formulas A to D are as defined in the specification.Type: GrantFiled: June 26, 2017Date of Patent: October 6, 2020Assignee: SFC CO., LTD.Inventors: Soon-Wook Cha, Sang-woo Park, Jung-ho Yoo, Ji-Hwan Kim, Sung woo Kim, Hyeon Jun Jo
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Patent number: 10790450Abstract: Disclosed herein is an organic light-emitting diode, comprising: an organic light-emitting diode, comprising: a first electrode; a second electrode facing the first electrode; a light-emitting layer intercalated between the first electrode and the second electrode, wherein the light-emitting layer comprises at least one of the amine compounds represented by Chemical Formula A or B, and at least one of the anthracene compounds represented by Chemical Formula C.Type: GrantFiled: July 5, 2016Date of Patent: September 29, 2020Assignee: SFC CO., LTD.Inventors: Sung-Wan Pyo, So Young Shim, Se Jin Yu
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Publication number: 20200287141Abstract: [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/electron injection/transport performance, electron blocking performance, stability in a thin film state, and durability, are combined as materials for an organic EL device that has high light emission efficiency and high durability 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.Type: ApplicationFiled: September 21, 2018Publication date: September 10, 2020Applicants: HODOGAYA CHEMICAL CO., LTD., SFC CO., LTD.Inventors: Yuta HIRAYAMA, Takeshi YAMAMOTO, Kazuyuki SURUGA, Se-Jin LEE, Oun-Gyu LEE, Bong-Ki SHIN