Patents by Inventor Bangsook Lee

Bangsook Lee 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).

  • Organic compounds and organic light emitting device comprising the same
    Patent number: 10069073
    Abstract: Provided are organic compounds capable of improving the efficiency of light emission and lowering the driving voltage of an organic light emitting device, and an organic light emitting device including the same.
    Type: Grant
    Filed: November 25, 2014
    Date of Patent: September 4, 2018
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Youngju Ryu, Seungjae Lee, Jongkwan Bin, Joonghwan Yang, Bangsook Lee, Bomin Seo, Inae Shin
  • Phosphorescent compounds and organic light emitting diode devices using the same
    Patent number: 9373794
    Abstract: A phosphorescent compound is disclosed. The phosphorescent compound represented by the following Chemical Formula 1, where X, Y, and Z are each selected from the group consisting of carbon and nitrogen, and when x, y, and z are all carbon, R is any one selected from the group consisting of carbazole, ?-carboline, ?-carboline, ?-carboline, fluorine, dibenzothiophene, dibenzofuran, triphenylsilane, tetraphenylsilane, pyridine, quinoline, isoquinoline, pyrimidine, diphenylphosphineoxide, and substituents thereof.
    Type: Grant
    Filed: December 9, 2013
    Date of Patent: June 21, 2016
    Assignee: LG Display Co., Ltd.
    Inventors: Bangsook Lee, Jongkwan Bin, Bomin Seo
  • ORGANIC COMPOUNDS AND ORGANIC LIGHT EMITTING DEVICE COMPRISING THE SAME
    Publication number: 20150155490
    Abstract: Provided are organic compounds capable of improving the efficiency of light emission and lowering the driving voltage of an organic light emitting device, and an organic light emitting device including the same.
    Type: Application
    Filed: November 25, 2014
    Publication date: June 4, 2015
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Youngju RYU, Seungjae LEE, Jongkwan BIN, Joonghwan YANG, Bangsook LEE, Bomin SEO, Inae SHIN
  • PHOSPHORESCENT COMPOUNDS AND ORGANIC LIGHT EMITTING DIODE DEVICES USING THE SAME
    Publication number: 20140175406
    Abstract: A phosphorescent compound is disclosed. The phosphorescent compound represented by the following Chemical Formula 1, where X, Y, and Z are each selected from the group consisting of carbon and nitrogen, and when x, y, and z are all carbon, R is any one selected from the group consisting of carbazole, ?-carboline, ?-carboline, ?-carboline, fluorine, dibenzothiophene, dibenzofuran, triphenylsilane, tetraphenylsilane, pyridine, quinoline, isoquinoline, pyrimidine, diphenylphosphineoxide, and substituents thereof.
    Type: Application
    Filed: December 9, 2013
    Publication date: June 26, 2014
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Bangsook Lee, Jongkwan Bin, Bomin Seo