Patents by Inventor Hwan-Jin Kim

Hwan-Jin 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).

  • Publication number: 20070091640
    Abstract: A light guide unit for a point light source includes a light incident portion, a first reflecting portion and a second reflecting portion. The light emitted from the point light source enters to the light incident portion. The light incident portion includes an optical pattern diffusing an incident light corresponding to the point light source. The first reflecting portion reflects a first light of the incident light. The second reflecting portion roundly connects the first reflecting portion to the light incident portion and reflects a second light of the incident light.
    Type: Application
    Filed: August 14, 2006
    Publication date: April 26, 2007
    Inventors: Hwan-Jin Kim, Sang-Hee Lee, Kyoung-Don Lee, Se-In Chang, Jae-Kwang Kim, In-Hyuk Choi, Wal-Hee Kim, Jae-Lok Cha, Ji-Hwan Jang
  • Publication number: 20070035842
    Abstract: A light-guide plate includes a body for guiding incident light, and at least an inserting portion penetrating a portion of the body, wherein at least a light source for providing the light-guide plate with the light is inserted into the inserting portion. The inserting portion can be formed at an end portion of the body. A side surface of the body can be recessed to form the inserting portion. A light-diffusing pattern can be formed at a side surface of the inserting portion, and the side surface of the inserting portion is substantially parallel with the side surface of the body.
    Type: Application
    Filed: June 22, 2006
    Publication date: February 15, 2007
    Inventors: Chung-Woo Suh, Sang-Min Yi, Jae-Lok Cha, Sang-Hee Lee, Kyoung-Don Lee, Jae-Kwang Kim, In-Hyuk Choi, Wal-Hee Kim, Hwan-Jin Kim
  • Publication number: 20060285353
    Abstract: A liquid crystal display apparatus includes a light guide plate, a bottom chassis, a liquid crystal display panel disposed on the light guide plate to display an image, a flexible printed circuit board connected to the liquid crystal display panel and outwardly bent toward a rear surface of the bottom chassis to be fixed to the rear surface, and at least one point light source disposed at an adjacent position to an incident surface of the light guide plate. The light guide plate includes an inclined portion from a lower side of the light guide plate toward an upper side of the light guide plate. Advantageously, the liquid crystal display apparatus may prevent the occurrence of the step-difference between the point light source and the light guide plate, thereby improving light efficiency and brightness.
    Type: Application
    Filed: May 18, 2006
    Publication date: December 21, 2006
    Inventor: Hwan-Jin Kim