Patents by Inventor Byong-Kyu Kim

Byong-Kyu Kim 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).

  • OPTICAL FILM COMPOSITE FOR BRIGHTNESS ENHANCEMENT INCLUDING A BIREFRINGENT POLYMER LAYER
    Publication number: 20090303589
    Abstract: The present invention provides an optical film composite that comprises a linear, reflective polarizing film; a first polymeric substrate layer having birefringence, which is placed on the reflective polarizing film; and a second polymeric substrate layer placed beneath the reflective polarizing film, wherein the optical axis of the first polymeric substrate layer is oriented with respect to the transmission axis of the reflective polarizing film to have of 0° to 25° of an angular difference between the axes. The optical film composite can be employed in LCD devices to improve optical performance.
    Type: Application
    Filed: December 28, 2006
    Publication date: December 10, 2009
    Inventors: Seo-Hern Lee, Myeong-Kyun Kang, Yeon-shin Kim, Byong-Kyu Kim, Jong-Seo Lee, Chi-Deuk Kim, Dong-Won Chae, Kang-Il Seo