Patents by Inventor Jong-Seok Ku

Jong-Seok Ku 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).

  • NOVEL COMBINATION OF A HOST COMPOUND AND A DOPANT COMPOUND AND AN ORGANIC ELECTROLUMINESCENCE DEVICE COMPRISING THE SAME
    Publication number: 20150249224
    Abstract: The present invention relates to a specific combination of a dopant compound and a host compound, and an organic electroluminescent device comprising the same. The organic electroluminescent device according to the present invention, has an advantage of showing a higher luminous efficiency under a driving voltage lower than that of the device comprising conventional luminescent materials.
    Type: Application
    Filed: September 10, 2013
    Publication date: September 3, 2015
    Applicant: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.
    Inventors: So-Young Jung, Bong-Ok Kim, Chi-Sik Kim, Hyun Kim, Jong-Seok Ku, Hyuck-Joo Kwon, Kyung-Joo Lee, Kyoung-Jin Park
  • NOVEL ORGANIC ELECTROLUMINESCENCE COMPOUNDS AND ORGANIC ELECTROLUMINESCENCE DEVICE CONTAINING THE SAME
    Publication number: 20150133662
    Abstract: The present invention relates to novel organic electroluminescent compounds and an organic electroluminescent device comprising the same. The organic electroluminescent compounds according to the present invention have high luminescent efficiency and a long lifespan, and thus an organic electroluminescent device having a long operating lifespan can be prepared by using the organic electroluminescent compounds according to the present invention.
    Type: Application
    Filed: June 12, 2013
    Publication date: May 14, 2015
    Inventors: Hee-Choon Ahn, Young-Jun Cho, Bong-Ok Kim, Nam-Kyun Kim, Jong-Seok Ku, Hyuck-Joo Kwon, Doo-Hyeon Moon
  • NOVEL ORGANIC ELECTROLUMINESCENT COMPOUNDS AND ORGANIC ELECTROLUMINESCENT DEVICE COMPRISING THE SAME
    Publication number: 20150112064
    Abstract: The present invention relates to a novel organic electroluminescent compound and an organic electroluminescent device comprising the same. The organic electroluminescent compound according to the present invention has high green luminous efficiency and superior material lifespan characteristics, compared with conventional phosphorescent host materials, and thus can provide an organic electroluminescent device which is excellent in operational lifespan, and induces increased power efficiency and improves power consumption.
    Type: Application
    Filed: April 24, 2013
    Publication date: April 23, 2015
    Inventors: Bong-Ok Kim, Chi-Sik Kim, Jong-Seok Ku, Hyuck-Joo Kwon, Kyung-Joo Lee, Hong-Yeop Na
  • NOVEL ORGANIC ELECTROLUMINESCENT COMPOUNDS AND ORGANIC ELECTROLUMINESCENT DEVICE COMPRISING THE SAME
    Publication number: 20150105563
    Abstract: The present invention relates to novel organic electroluminescent compounds and an organic electroluminescent device containing the same. The organic electroluminescent compounds according to the present invention can be used as a phosphorescent host material, a hole transport material, or a mixed host material; have a good hole transport ability; prevent crystallization in the production of the device; are suitable for forming a layer; and improve the current density of the device thereby reducing the driving voltage of the device.
    Type: Application
    Filed: April 2, 2013
    Publication date: April 16, 2015
    Applicant: Rohm and Haas Electronic Materials Korea Ltd.
    Inventors: Hee-Choon Ahn, Young-Jun Cho, Bong-Ok Kim, Yong-Gil Kim, Hyuck-Joo Kwon, Jong-Seok Ku, Hyo-Jung Lee, Kyung-Joo Lee, Tae-Jin Lee, Jeong-eun Yang
  • NOVEL ORGANIC ELECTROLUMINESCENT COMPOUNDS AND AN ORGANIC ELECTROLUMINESCENT DEVICE USINC THE SAME
    Publication number: 20140323723
    Abstract: The present invention relates to a novel organic electroluminescent compound and an organic electroluminescent device containing the same. The organic electroluminescent compound according to the present invention has an advantage of manufacturing an OLED device having long operating lifespan due to its excellent lifespan characteristics, lower driving voltages, high luminous efficiency, and reduced power consumption induced by improved power efficiency.
    Type: Application
    Filed: November 15, 2012
    Publication date: October 30, 2014
    Inventors: Hee-Choon Ahn, Seok-Keun Yoon, Nam-Kyun Kim, Seung-Ae Kim, Jong-Seok Ku, Hyuck-Joo Kwon, Kyung-Joo Lee, Bong-Ok Kim
  • NOVEL ORGANIC ELECTROLUMINESCENCE COMPOUNDS AND ORGANIC ELECTROLUMINESCENCE DEVICE COMPRISING SAME
    Publication number: 20140316136
    Abstract: The present invention relates to novel organic electroluminescence compounds and an organic electroluminescence device comprising the same. The organic electroluminescence compound according to the present invention has an advantage of manufacturing an OLED device having long operating lifespan due to its high luminous efficiency compared with conventional materials, and having reduced power consumption induced by improved power efficiency.
    Type: Application
    Filed: November 15, 2012
    Publication date: October 23, 2014
    Inventors: Soo-Jin Yang, Kyoung-Jin Park, Jong-Seok Ku, Hyuck-Joo Kwon