Patents by Inventor Oh Jin Kweon

Oh Jin Kweon 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).

  • Projection display device for projecting an input unit image
    Patent number: 8950870
    Abstract: A projection display device (100) capable of providing a virtual keyboard function to the user, using a light source of a pico projector, is discussed. According to an embodiment, the projection display device includes a light source unit (110) configured to emit lights; a light combining unit (120) configured to generate a leakage light from the lights emitted by the light source (110) unit and to selectively combine the lights from the light source unit (110); an image projection unit (130) configured to project an image using the combined light from the light combining unit (120); and a virtual input unit (140) configured to project an input unit image (150) using the leakage light from the light combining unit (120).
    Type: Grant
    Filed: November 19, 2013
    Date of Patent: February 10, 2015
    Assignee: LG Electronics Inc.
    Inventors: Ho Joong Kang, Seung Gyu Lee, Sang Sik Jeong, Oh Jin Kweon
  • PROJECTION DISPLAY DEVICE FOR PROJECTING AN INPUT UNIT IMAGE
    Publication number: 20140146292
    Abstract: A projection display device (100) capable of providing a virtual keyboard function to the user, using a light source of a pico projector, is discussed. According to an embodiment, the projection display device includes a light source unit (110) configured to emit lights; a light combining unit (120) configured to generate a leakage light from the lights emitted by the light source (110) unit and to selectively combine the lights from the light source unit (110); an image projection unit (130) configured to project an image using the combined light from the light combining unit (120); and a virtual input unit (140) configured to project an input unit image (150) using the leakage light from the light combining unit (120).
    Type: Application
    Filed: November 19, 2013
    Publication date: May 29, 2014
    Applicant: LG Electronics Inc.
    Inventors: Ho Joong KANG, Seung Gyu LEE, Sang Sik JEONG, Oh Jin KWEON
  • Projection display device having a light combining unit
    Patent number: 8633892
    Abstract: A projection display device (100) capable of providing a virtual keyboard function to the user, using a light source of a pico projector, is discussed. According to an embodiment, the projection display device includes a light source unit (110) configured to emit lights; a light combining unit (120) configured to generate a leakage light from the lights emitted by the light source (110) unit and to selectively combine the lights from the light source unit (110); an image projection unit (130) configured to project an image using the combined light from the light combining unit (120); and a virtual input unit (140) configured to project an input unit image (150) using the leakage light from the light combining unit (120).
    Type: Grant
    Filed: February 13, 2009
    Date of Patent: January 21, 2014
    Assignee: LG Electronics Inc.
    Inventors: Ho Joong Kang, Seung Gyu Lee, Sang Sik Jeong, Oh Jin Kweon
  • PROJECTION DISPLAY DEVICE
    Publication number: 20100302511
    Abstract: A projection display device (100) capable of providing a virtual keyboard function to the user, using a light source of a pico projector, is discussed. According to an embodiment, the projection display device includes a light source unit (110) configured to emit lights; a light combining unit (120) configured to generate a leakage light from the lights emitted by the light source (110) unit and to selectively combine the lights from the light source unit (110); an image projection unit (130) configured to project an image using the combined light from the light combining unit (120); and a virtual input unit (140) configured to project an input unit image (150) using the leakage light from the light combining unit (120).
    Type: Application
    Filed: February 13, 2009
    Publication date: December 2, 2010
    Applicant: LG Electronics, Inc.
    Inventors: Ho Joong Kang, Seung Gyu Lee, Sang Sik Jeong, Oh Jin Kweon