Patents by Inventor Hee-Jong Yoo

Hee-Jong Yoo 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).

  • Power connection apparatus of direct type backlight unit
    Patent number: 7527510
    Abstract: Provided is a single integral power connection apparatus of a backlight unit with a pressure cam that compresses a lamp lead receiver including plate springs using an elastic restoring force of a cam spring such that the lamp lead receiver comes in contact with a lead of a CCFL to supply power to the CCFL. The power connection apparatus includes a base disposed on a substrate of the backlight unit, the lamp lead receiver having a space defined for receiving the lead by a pair of the bent plate springs disposed on the base, a lamp lead guide disposed on the base for supporting the lead of the lamp, a lamp tube guide disposed on the base for supporting a tube of the lamp, the elastic cam spring applying the restoring force, and the pressure cam for pressing the lamp lead receiver using the restoring force of the cam spring.
    Type: Grant
    Filed: March 28, 2008
    Date of Patent: May 5, 2009
    Assignee: Heesung Electronics Co., Ltd.
    Inventor: Hee-Jong Yoo
  • POWER CONNECTION APPARATUS OF DIRECT TYPE BACKLIGHT UNIT
    Publication number: 20090011631
    Abstract: Provided is a single integral power connection apparatus of a backlight unit with a pressure cam that compresses a lamp lead receiver including plate springs using an elastic restoring force of a cam spring such that the lamp lead receiver comes in contact with a lead of a CCFL to supply power to the CCFL. The power connection apparatus includes a base disposed on a substrate of the backlight unit, the lamp lead receiver having a space defined for receiving the lead by a pair of the bent plate springs disposed on the base, a lamp lead guide disposed on the base for supporting the lead of the lamp, a lamp tube guide disposed on the base for supporting a tube of the lamp, the elastic cam spring applying the restoring force, and the pressure cam for pressing the lamp lead receiver using the restoring force of the cam spring.
    Type: Application
    Filed: March 28, 2008
    Publication date: January 8, 2009
    Inventor: Hee-Jong YOO