Patents by Inventor Kyoung Chan Lee

Kyoung Chan 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).

  • Publication number: 20130135560
    Abstract: A display device including a sub-backlight unit which can prevent the obscure sights caused by light from the light source of the sub-backlight unit arriving on an article or reel of the main display screen and then reflecting in the frontal direction is provided. The sub-backlight unit includes a second light guide panel having an opening part formed therein corresponding to a transparent window, a second light source disposed around the second light guide panel, and a polymer dispersed liquid crystal (PDLC) sheet disposed close to the front side of the opening of the second light guide panel.
    Type: Application
    Filed: June 1, 2011
    Publication date: May 30, 2013
    Applicant: KORTEK CORPORATION
    Inventors: Kyoung Chan Lee, Gun H0 Lee
  • Publication number: 20120206321
    Abstract: The present invention relates to a display apparatus comprising front display unit (10) and rear display unit (50), wherein the front display unit (10) and the rear display unit (50) are arranged such that an image on the rear display unit (50) is visible through a portion of the front display unit (10).
    Type: Application
    Filed: October 6, 2010
    Publication date: August 16, 2012
    Inventors: Kyoung Chan Lee, Chan Hwan Kim, Gun Ho Lee
  • Publication number: 20120206320
    Abstract: The present invention relates to a display apparatus comprising front display unit (10), and rear display unit (50) arranged behind the front display unit (10).
    Type: Application
    Filed: October 6, 2010
    Publication date: August 16, 2012
    Inventors: Kyoung Chan Lee, Chan Hwan Kim, Gun Ho Lee