Patents by Inventor Soon-wook Cha

Soon-wook Cha has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20180277761
    Abstract: 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: Application
    Filed: November 6, 2015
    Publication date: September 27, 2018
    Applicants: Hodogaya Chemical Co., Ltd., SFC Co., Ltd., SFC Co., Ltd.
    Inventors: Shuichi Hayashi, Naoaki Kabasawa, Soon-wook Cha, Sang- woo Park, Ju- man Song, Kyung- seok Jeon
  • Patent number: 10014479
    Abstract: An organic light-emitting diode with high efficiency and long lifetime includes a first electrode, a second electrode facing the first electrode and an emissive layer between the first electrode and the second electrode, wherein the emissive layer includes a luminescent material that allows for the emission of deep blue light at high efficiency with a long lifetime.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: July 3, 2018
    Assignee: SFC CO., LTD.
    Inventors: Hee-Dae Kim, Seok-Bae Park, Yoona Shin, Sang-Woo Park, Soon-Wook Cha
  • Publication number: 20180166638
    Abstract: 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: Application
    Filed: May 27, 2016
    Publication date: June 14, 2018
    Inventors: Young-Hwan PARK, SeoYeon YOON, Soon-Wook CHA, Sung-Keun CHOI, Si-In KIM
  • Patent number: 9991449
    Abstract: The present invention relates to a novel anthracene derivative, for an organic light-emitting device, and an organic light-emitting device comprising same, the anthracene derivative enabling excellent device characteristics when used as a light-emitting material.
    Type: Grant
    Filed: January 8, 2016
    Date of Patent: June 5, 2018
    Assignee: SFC CO., LTD.
    Inventors: Soon-Wook Cha, Sang-woo Park, Seok-Bae Park, Yoona Shin, Hee-Dae Kim
  • Publication number: 20180123055
    Abstract: The present invention relates to an anthracene derivative selected from among compounds represented by Chemical Formulas A-1, A-2, B-1, and B-2, and an organic light-emitting device including the same. Structures of individual moieties in the anthracene derivative are as defined in the specification.
    Type: Application
    Filed: April 15, 2016
    Publication date: May 3, 2018
    Inventors: Seok-Bae PARK, Hee-Dae KIM, Yoona SHIN, Sang-woo PARK, Soon-Wook CHA, Young-Hwan PARK, Sei-Yeon YOON, Sung-Wan PYO
  • Publication number: 20180026199
    Abstract: An organic electroluminescent device having high luminous efficiency, low driving voltage, and particularly a long lifetime is provided by combining various materials for an organic electroluminescent device, which have excellent hole and electron injection/transport performances, electron blocking ability, stability in a thin-film state, and durability as materials for an organic electroluminescent device having high luminous efficiency and high 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: Application
    Filed: January 29, 2016
    Publication date: January 25, 2018
    Inventors: Shuichi Hayashi, Hideyoshi Kitahara, Takeshi Yamamoto, Daizou Kanda, Naoaki Kabasawa, Soon-wook Cha, Sang-woo Park, Ju-man Song, Kyung-seok Jeon
  • Publication number: 20180019430
    Abstract: 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: Application
    Filed: June 26, 2017
    Publication date: January 18, 2018
    Inventors: Soon-Wook CHA, Sang-woo PARK, Jung-ho YOO, Ji-Hwan KIM, Sung woo KIM, Hyeon Jun JO
  • Publication number: 20180009776
    Abstract: The present invention relates to a compound for organic light-emitting diodes that can operate organic light-emitting diodes at a low driving voltage and an organic light-emitting diode comprising the same and, more particularly, to a compound for use as a fluorescent host in organic light-emitting diodes, which can bring about excellent diode properties by operating organic light-emitting diodes at a low driving voltage, and an organic light-emitting diode comprising the same.
    Type: Application
    Filed: January 4, 2016
    Publication date: January 11, 2018
    Inventors: Soon-Wook CHA, Seok-Bae PARK, Sang-woo PARK, Yoona SHIN, Hee-Dae KIM
  • Publication number: 20180013071
    Abstract: The present disclosure relates to an organic light-emitting diode having a low driving voltage and long lifespan and more particularly, to an organic light-emitting diode, comprising a first electrode, a second electrode facing the first electrode, and a light-emitting layer interposed therebetween, wherein the light-emitting layer contains at least one of the amine compounds represented by the following Chemical Formula A or Chemical Formula B, plus the compound represented by Chemical Formula D. The structures of Chemical Formulas A, B, and D are the same as in the specification.
    Type: Application
    Filed: January 15, 2016
    Publication date: January 11, 2018
    Inventors: Soon-Wook CHA, Seok-Bae PARK, Sang-woo PARK, Yoona SHIN, Hee-Dae KIM
  • Publication number: 20180006244
    Abstract: The present invention relates to a novel anthracene derivative, for an organic light-emitting device, and an organic light-emitting device comprising same, the anthracene derivative enabling excellent device characteristics when used as a light-emitting material.
    Type: Application
    Filed: January 8, 2016
    Publication date: January 4, 2018
    Inventors: Soon-Wook CHA, Sang-woo PARK, Seok-Bae PARK, Hee-Dae KIM
  • Publication number: 20170346009
    Abstract: 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, Ar4 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: Application
    Filed: December 16, 2015
    Publication date: November 30, 2017
    Inventors: Norimasa Yokoyama, Shuichi Hayashi, Takeshi Yamamoto, Naoaki Kabasawa, Daizou Kanda, Shunji Mochizuki, Soon-wook Cha, Sang-woo Park, Ju-man Song, Kyung-seok Jeon
  • Publication number: 20170342318
    Abstract: 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: Application
    Filed: November 6, 2015
    Publication date: November 30, 2017
    Inventors: Hee-Dae KIM, Seok-Bae PARK, Yoona SHIN, Yu-Rim LEE, Sang-Woo PARK, Soon-Wook CHA
  • Publication number: 20170222155
    Abstract: The present invention relates to a condensed fluorene derivative comprising a hetero ring, and, more specifically, relates to an intermediate for producing a hetero-ring compound able to exhibit the outstanding element characteristic of a long life and outstanding luminance and light-emission efficiency when used as an organic light-emitting material.
    Type: Application
    Filed: June 10, 2015
    Publication date: August 3, 2017
    Inventors: Soon-Wook CHA, Ju-man SONG, Yu-rim LEE, Sang-Woo PARK, Hee-Dae KIM, Seok-Bae PARK
  • Publication number: 20170207395
    Abstract: An organic electroluminescent device having high efficiency, low driving voltage and a long lifetime is provided by combining various materials for an organic electroluminescent 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 comprises an amine derivative of the following general formula (2) having a condensed ring structure.
    Type: Application
    Filed: July 16, 2015
    Publication date: July 20, 2017
    Inventors: Shuichi Hayashi, Daizou Kanda, Soon- Wook Cha, Sang- Woo Park, Ju- Man Song, Kyung- Seok Jeon
  • Publication number: 20170141322
    Abstract: Disclosed herein are provided an amine compound represented by the following [Chemical Formula A] or [Chemical Formula B], and an organic light-emitting diode comprising the same. wherein, the ring moieties, A1, A2, Q1, Q2, E, F, L1 to L6, Ar1 to Ar4, p1, p2, r1, r2, s1, s2, x, and y are each as defined in the Specification.
    Type: Application
    Filed: October 26, 2016
    Publication date: May 18, 2017
    Inventors: Soon-Wook Cha, Yoona Shin, Jea-Geon Lim, Sang-Woo Park, Ji-Hwam Kim, Jung-Ho Yoo, Young-Hwan Park
  • Publication number: 20170062729
    Abstract: The present invention relates to a heterocyclic compound containing an aromatic amine group and an organic light-emitting device comprising the same and, more specifically, to a heterocyclic compound and an organic light-emitting device comprising the same, the heterocyclic compound being excellent in brightness and excellent light emission efficiency and being able to exhibit long life and excellent device characteristics when being used as an organic light-emitting material.
    Type: Application
    Filed: May 7, 2015
    Publication date: March 2, 2017
    Inventors: Soon-Wook CHA, Seok-Bae PARK, Hee-Dae KIM, Yu-rim LEE, Sang-Woo PARK, Ju-man SONG
  • Publication number: 20170018723
    Abstract: 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: Application
    Filed: July 5, 2016
    Publication date: January 19, 2017
    Inventors: Soon-Wook Cha, Young-Hwan Park, Seo-Yeon Yoon, So Young Shim
  • Publication number: 20160204355
    Abstract: An organic light-emitting diode with high efficiency and long lifetime includes a first electrode, a second electrode facing the first electrode and an emissive layer between the first electrode and the second electrode, wherein the emissive layer includes a luminescent material that allows for the emission of deep blue light at high efficiency with a long lifetime.
    Type: Application
    Filed: December 28, 2015
    Publication date: July 14, 2016
    Inventors: Hee-Dae KIM, Seok-Bae PARK, Yoona SHIN, Sang-Woo PARK, Soon-Wook CHA
  • Patent number: 9371484
    Abstract: An organic light emitting diode (OLED) device includes a first electrode; a second electrode facing the first electrode; an emitting material layer disposed between the first and second electrodes and a horizontally oriented liquid crystal type emitting material.
    Type: Grant
    Filed: August 22, 2013
    Date of Patent: June 21, 2016
    Assignee: LG Display Co., Ltd.
    Inventors: Kyung-Jin Yoon, Gee-Sung Chae, Soon-Wook Cha, Kyung-Hoon Lee, Seog-Shin Kang, Su-Yeon Lee, Hyo-Jin Noh, Dae-Wi Yoon
  • Patent number: 9324958
    Abstract: A red phosphorescent compound includes a host material being capable of transporting an electron or a hole; and a dopant material represented by following Formula 1: wherein the is one of and each of R1 to R4 is one of the group consisting of hydrogen atom (H), C1 to C6 substituted or non-substituted alkyl group, C1 to C6 substituted or non-substituted alkoxy group, and halogen atom.
    Type: Grant
    Filed: February 11, 2015
    Date of Patent: April 26, 2016
    Assignee: LG Display Co., Ltd.
    Inventors: Do-Han Kim, Chun-Gun Park, Jong-Kwan Bin, Kyung-Hoon Lee, Hyun-Cheol Jeong, Dong-Hee Yoo, Nam-Sung Cho, Jong-Hyun Park, Tae-Han Park, Soon-Wook Cha, Seung-Jae Lee, In-Bum Song, Jung-Keun Kim