Patents by Inventor Soon-Ok Jeon

Soon-Ok Jeon 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).

  • Carbazole-based phosphine oxide compound, and organic electroluminescent device including the same
    Patent number: 9278986
    Abstract: The present invention relates to a carbazole-based phosphine oxide compound, and an organic electroluminescent device including the same. According to the present invention, provided are a compound for an organic electroluminescent device which can improve the thermal stability and efficiency characteristics which are unstable and low, respectively, corresponding to problems of known compounds for organic electroluminescent devices, and particularly, can implement excellent efficiency characteristics in a pure blue phosphorescent device, by using the carbazole-based phosphine oxide compound of the compound for the organic electroluminescent device, and the organic electroluminescent device. According to one aspect of the present invention, the carbazole-based phosphine oxide compound of the compound for the organic electroluminescent device is provided, and the organic electroluminescent device containing the same which can implement thermal stability and high efficiency characteristics is also provided.
    Type: Grant
    Filed: November 16, 2009
    Date of Patent: March 8, 2016
    Assignee: SK CHEMICALS CO., LTD.
    Inventors: Jun-Yeob Lee, Soon-Ok Jeon, Kyoung-Soo Yook, Oh-Young Kim
  • Highly efficient carbazole-based compound, and organic electroluminescence device comprising same
    Patent number: 9142784
    Abstract: The present invention relates to a highly efficient carbazole-based compound and to an organic electroluminescence device including the same. According to the present invention, provided are a compound for an organic electroluminescence device and an organic electroluminescence device including the compound, in which a carbazole-based phosphine oxide compound, which is a compound intended for an organic electroluminescence device, is employed to overcome the problems of conventional compounds for organic electroluminescence devices, i.e. those of instable thermal stability and low efficiency, and particularly, the compound of the present invention exhibits superior efficiency in pure-blue phosphorescent devices.
    Type: Grant
    Filed: June 23, 2011
    Date of Patent: September 22, 2015
    Assignee: SK CHEMICALS CO., LTD.
    Inventors: Jun Yeob Lee, Soon Ok Jeon, Hyo Suk Son, Kyoung Soo Yook, Sang Eok Jang
  • HIGHLY EFFICIENT CARBAZOLE-BASED COMPOUND, AND ORGANIC ELECTROLUMINESCENCE DEVICE COMPRISING SAME
    Publication number: 20130119367
    Abstract: The present invention relates to a highly efficient carbazole-based compound and to an organic electroluminescence device including the same. According to the present invention, provided are a compound for an organic electroluminescence device and an organic electroluminescence device including the compound, in which a carbazole-based phosphine oxide compound, which is a compound intended for an organic electroluminescence device, is employed to overcome the problems of conventional compounds for organic electroluminescence devices, i.e. those of instable thermal stability and low efficiency, and particularly, the compound of the present invention exhibits superior efficiency in pure-blue phosphorescent devices.
    Type: Application
    Filed: June 23, 2011
    Publication date: May 16, 2013
    Applicant: INDUSTRY ACADEMIC COOPERATION FOUNDATION, DANKOOK UNIVERSITY
    Inventors: Jun Yeob Lee, Soon Ok Jeon, Hyo Suk Son, Kyoung Soo Yook, Sang Eok Jang
  • CARBAZOLE-BASED PHOSPHINE OXIDE COMPOUND, AND ORGANIC ELECTROLUMINESCENT DEVICE INCLUDING THE SAME
    Publication number: 20120068168
    Abstract: The present invention relates to a carbazole-based phosphine oxide compound, and an organic electroluminescent device including the same. According to the present invention, provided are a compound for an organic electroluminescent device which can improve the thermal stability and efficiency characteristics which are unstable and low, respectively, corresponding to problems of known compounds for organic electroluminescent devices, and particularly, can implement excellent efficiency characteristics in a pure blue phosphorescent device, by using the carbazole-based phosphine oxide compound of the compound for the organic electroluminescent device, and the organic electroluminescent device. According to one aspect of the present invention, the carbazole-based phosphine oxide compound of the compound for the organic electroluminescent device is provided, and the organic electroluminescent device containing the same which can implement thermal stability and high efficiency characteristics is also provided.
    Type: Application
    Filed: November 16, 2009
    Publication date: March 22, 2012
    Applicant: INDUSTRY-ACADEMIC COOPERATION FOUNDATION, DANKOOK UNIVERSITY
    Inventors: Jun-Yeob Lee, Soon-Ok Jeon, Kyoung-Soo Yook, Oh-Young Kim