Patents by Inventor Wook Dong Cho

Wook Dong 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).

  • DIAMINE DERIVATIVES AND ORGANIC ELECTRONIC DEVICE USING THE SAME
    Publication number: 20100187504
    Abstract: The present invention relates to a new diamine derivative, and an organic electronic device using the same. The diamine derivative according to the present invention can serve as a hole injecting, hole transporting, electron injecting, electron transporting, or light emitting material in an organic electronic device including an organic light emitting device. Particularly, it can serve as a light emitting dopant as used alone, in particular, a blue light emitting dopant. The organic electronic device according to the present invention exhibits excellent characteristics in terms of efficiency, drive voltage, life time, and stability.
    Type: Application
    Filed: April 25, 2008
    Publication date: July 29, 2010
    Inventors: Hye-Young Jang, Kong-Kyeom Kim, Jae-Chol Lee, Ji-Eun Kim, Seong-So Kim, Jin-Kyoon Park, Tae-Yoon Park, Eun-Ju Kim, Wook-Dong Cho, Byung-Sun Jeon, Jae-Soon Bae
  • COMPOUNDS AND ORGANIC LIGHT EMITTING DIODE USING THE SAME
    Publication number: 20100065828
    Abstract: Disclosed are new compounds and an organic light emitting diode using the same. The organic light emitting diode using the new compound according to the present invention exhibits excellent characteristics in terms of actuating voltage, light efficiency, and lifespan.
    Type: Application
    Filed: December 3, 2007
    Publication date: March 18, 2010
    Inventors: Byung-Sun Jeon, Wook-Dong Cho, Jeung-Gon Kim, Sang-Young Jeon, Yeon-Hwan Kim
  • COMPOUNDS AND ORGANIC LIGHT EMITTING DIODE USING THE SAME
    Publication number: 20100065827
    Abstract: Disclosed are new compounds and an organic light emitting diode using the same. The organic light emitting diode using the new compound according to the present invention exhibits excellent characteristics in terms of actuating voltage, light efficiency, and lifespan.
    Type: Application
    Filed: December 3, 2007
    Publication date: March 18, 2010
    Inventors: Byung-Sun Jeon, Jeung-Gon Kim, Wook-Dong Cho, Chang-Kwan Kim, Hyun Nam
  • Compounds and Organic Light Emitting Device Using the Same
    Publication number: 20090200542
    Abstract: Disclosed is an organic light emitting device. The organic light emitting device comprises a first electrode, organic material layer(s) comprising a light emitting layer, and a second electrode. The first electrode, the organic material layer(s), and the second electrode form layered structure and at least one layer of the organic material layer(s) include the compound of Formula 1 or the compound of Formula 1 into which a thermosetting or photo-crosslinkable functional group is introduced.
    Type: Application
    Filed: September 23, 2005
    Publication date: August 13, 2009
    Inventors: Wook Dong Cho, Ji Eun Kim, Byung Sun Jeon, Dong Seob Jeong, Seok Hee Yoon, Jae Min Moon
  • Compound and organic light emitting device using the same
    Publication number: 20090045721
    Abstract: Disclosed is an organic light emitting device. The organic light emitting device comprises a first electrode, organic material layer(s) comprising a light emitting layer, and a second electrode. The first electrode, the organic material layer(s), and the second electrode form layered structure and at least one layer of the organic material layer(s) include the compound of Formula 1 or the compound of Formula 1 into which a thermosetting or photo-crosslinkable functional group is introduced.
    Type: Application
    Filed: September 23, 2005
    Publication date: February 19, 2009
    Inventors: Wook Dong Cho, Ji Eun Kim, Byung Sun Jeon, Sang Young Jeon, Seok Hee Yoon, Jae Min Moon
  • Compound and Organic Light Emitting Device Using the Same
    Publication number: 20080303434
    Abstract: Disclosed is a novel compound which is capable of significantly improving a lifespan, efficiency, and electrochemical and thermal stabilities of an organic light emitting device, the production of the compound, and an organic light emitting device in which the compound is contained in an organic compound layer.
    Type: Application
    Filed: September 24, 2005
    Publication date: December 11, 2008
    Inventors: Wook Dong Cho, Ji Eun Kim, Byung Sun Jeon, Seok Hee Yoon, Jae Min Moon
  • Compound and Organic Light Emitting Device Using the Same
    Publication number: 20080303414
    Abstract: Disclosed is an organic light emitting device. The organic light emitting device comprises a first electrode, organic material layer(s) comprising a light emitting layer, and a second electrode. The first electrode, the organic material layer(s), and the second electrode form layered structure and at least one layer of the organic material layer(s) include the compound of Formula 1 or the compound of Formula 1 into which a thermosetting or photo-crosslinkable functional group is introduced.
    Type: Application
    Filed: September 23, 2005
    Publication date: December 11, 2008
    Inventors: Wook Dong Cho, Ji Eun Kim, Byung Sun Jeon, Min Jeong Lee, Seok Hee Yoon, Jae Min Moon