Patents by Inventor Pyeong-Seok CHO

Pyeong-Seok CHO 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).

  • Compound, organic optoelectronic element comprising same and display device thereof
    Patent number: 11563179
    Abstract: The present invention relates to a compound represented by formula 1, an organic optoelectronic element comprising the same, and a display device comprising the organic optoeletric element. Formula 1 and the description regarding the samen are as defined in the specification.
    Type: Grant
    Filed: April 13, 2015
    Date of Patent: January 24, 2023
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Dong-Wan Ryu, Young-Kyoung Jo, Sung-Hyun Jung, Chang-Ju Shin, Han-Ill Lee, Eui-Su Kang, Chang-Woo Kim, Min-Jee Park, Eun-Sun Yu, Pyeong-Seok Cho
  • Organic compound, composition, organic optoelectronic device, and display device
    Patent number: 11177441
    Abstract: Provided are an organic compound represented by the following Chemical Formula 1 and having a molecular weight of greater than or equal to 538 and less than 750, a composition for an organic optoelectronic device including the organic compound, an organic optoelectric device including the organic compound or the composition, and a display device including the organic optoelectronic device. In Chemical Formula 1, Z, R1 to R11, n1 to n4 are the same as defined in the specification.
    Type: Grant
    Filed: December 23, 2014
    Date of Patent: November 16, 2021
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Su-Jin Han, Han-ILL Lee, Soo-Hyun Min, Eun-Sun Yu, Ho-Kuk Jung, Pyeong-Seok Cho
  • Organic optoelectric device and display device
    Patent number: 10050212
    Abstract: Disclosed is an organic optoelectric device, including an anode and a cathode facing each other, an emission layer interposed between the anode and the cathode, a hole transport layer interposed between the anode and the emission layer, and a hole transport auxiliary layer interposed between the hole transport layer and the emission layer. The emission layer includes at least one first compound represented by Chemical Formula 1: The emission layer further includes at least one second compound represented by Chemical Formula 2: The hole transport auxiliary layer includes a third compound represented by Chemical Formula 2, the third compound being the same as or different from the second compound.
    Type: Grant
    Filed: June 12, 2014
    Date of Patent: August 14, 2018
    Assignee: Cheil Industries, Inc.
    Inventors: Pyeong-Seok Cho, Gi-Wook Kang, Eui-Su Kang, Youn-Hwan Kim, Hun Kim, Yong-Tak Yang, Jae-Jin Oh, Eun-Sun Yu, Nam-Heon Lee, Sang-Shin Lee, Han-Ill Lee
  • COMPOUND, ORGANIC OPTOELECTRONIC ELEMENT COMPRISING SAME AND DISPLAY DEVICE THEREOF
    Publication number: 20160372666
    Abstract: The present invention relates to a compound represented by formula 1, an organic optoelectronic element comprising the same, and a display device comprising the organic optoeletric element. Formula 1 and the description regarding the samen are as defined in the specification.
    Type: Application
    Filed: April 13, 2015
    Publication date: December 22, 2016
    Inventors: Dong-Wan RYU, Young-Kyoung JO, Sung-Hyun JUNG, Chang-Ju SHIN, Han-Ill LEE, Eui-Su KANG, Chang-Woo KIM, Min-Jee PARK, Eun-Sun YU, Pyeong-Seok CHO
  • ORGANIC COMPOUND, COMPOSITION, ORGANIC OPTOELECTRONIC DEVICE, AND DISPLAY DEVICE
    Publication number: 20160301012
    Abstract: Provided are an organic compound represented by the following Chemical Formula 1 and having a molecular weight of greater than or equal to 538 and less than 750, a composition for an organic optoelectronic device including the organic compound, an organic optoelectric device including the organic compound or the composition, and a display device including the organic optoelectronic device. In Chemical Formula 1, Z, R1 to R11, n1 to n4 are the same as defined in the specification.
    Type: Application
    Filed: December 23, 2014
    Publication date: October 13, 2016
    Inventors: Su-Jin HAN, Han-ILL LEE, Soo-Hyun MIN, Eun-Sun YU, Ho-Kuk JUNG, Pyeong-Seok CHO
  • COMPOSITION FOR ORGANIC OPTOELECTRONIC DEVICE, ORGANIC OPTOELECTRONIC DEVICE, AND DISPLAY DEVICE
    Publication number: 20160126472
    Abstract: Disclosed are a composition for an organic optoelectronic device including at least one kind of a first host compound represented by the Chemical Formula 1 and at least one kind of a second host compound represented by the Chemical Formula 2, and an organic optoelectronic device and a display device including the composition.
    Type: Application
    Filed: October 1, 2013
    Publication date: May 5, 2016
    Applicant: SAMSUNG SDI CO., LTD.
    Inventors: Jae-Jin OH, Gi-Wook KANG, Eui-Su KANG, Youn-Hwan KIM, Hun KIM, Yong-Tak YANG, Eun-Sun YU, Nam-Heon LEE, Han-III LEE, Pyeong-Seok CHO
  • ORGANIC OPTOELECTRIC DEVICE AND DISPLAY DEVICE
    Publication number: 20150102301
    Abstract: Disclosed is an organic optoelectric device, including an anode and a cathode facing each other, an emission layer interposed between the anode and the cathode, a hole transport layer interposed between the anode and the emission layer, and a hole transport auxiliary layer interposed between the hole transport layer and the emission layer. The emission layer includes at least one first compound represented by Chemical Formula 1: The emission layer further includes at least one second compound represented by Chemical Formula 2: The hole transport auxiliary layer includes a third compound represented by Chemical Formula 2, the third compound being the same as or different from the second compound.
    Type: Application
    Filed: June 12, 2014
    Publication date: April 16, 2015
    Inventors: Pyeong-Seok CHO, Gi-Wook KANG, Eui-Su KANG, Youn-Hwan KIM, Hun KIM, Yong-Tak YANG, Jae-Jin OH, Eun-Sun YU, Nam-Heon LEE, Sang-Shin LEE, Han-Ill LEE