Patents by Inventor Hoi Jin Ha

Hoi Jin Ha 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).

  • Patent number: 8102477
    Abstract: The present invention discloses a stereoscopic imaging device with no need for an image mirror circuit, including a first display device comprising a LCD panel, and a backlight disposed toward a rear surface of the LCD panel and configured to supply lighting to the LCD panel, wherein two polarization filters having a polarization angle difference of 90 degrees are attached to front and rear surfaces the LCD panel; a second display device having a type in which the LCD panel is rotated 180 degrees with its top and bottom remaining intact and the backlight is positioned on the front surface of the LCD panel in the first display device, the second display device being disposed at an angle of 90 degrees with respect to the first display device; and a half mirror disposed at an angle of 45 degrees with respect to the first display device and the second display device between the first display device and the second display device.
    Type: Grant
    Filed: May 10, 2007
    Date of Patent: January 24, 2012
    Assignee: Redrover Co., Ltd.
    Inventors: Jung Hoi Kim, Hoi Jin Ha
  • Publication number: 20100091368
    Abstract: The present invention discloses a stereoscopic imaging device, including a first display panel having a front surface to which a first front polarization filter having a polarization angle of 45 degrees is attached, and a rear surface to which a first rear polarization filter having a polarization angle of 135 degrees is attached; a second display panel disposed at an angle of 90 degrees with respect to the first display panel, wherein the second display panel has a front surface to which a second front polarization filter having a polarization angle of 45 degrees is attached and a rear surface to which a second rear polarization filter having a polarization angle of 135 degrees is attached; and a half mirror disposed at an angle of 45 degrees with respect to the first display device and the second display device between the first display device and the second display device.
    Type: Application
    Filed: May 10, 2007
    Publication date: April 15, 2010
    Applicant: REDROVER CO., LTD.
    Inventors: Jung Hoi Kim, Hoi Jin Ha
  • Publication number: 20090316059
    Abstract: The present invention discloses a stereoscopic imaging device with no need for an image mirror circuit, including a first display device comprising a LCD panel, and a backlight disposed toward a rear surface of the LCD panel and configured to supply lighting to the LCD panel, wherein two polarization filters having a polarization angle difference of 90 degrees are attached to front and rear surfaces the LCD panel; a second display device having a type in which the LCD panel is rotated 180 degrees with its top and bottom remaining intact and the backlight is positioned on the front surface of the LCD panel in the first display device, the second display device being disposed at an angle of 90 degrees with respect to the first display device; and a half mirror disposed at an angle of 45 degrees with respect to the first display device and the second display device between the first display device and the second display device.
    Type: Application
    Filed: May 10, 2007
    Publication date: December 24, 2009
    Applicant: REDROVER CO., LTD.
    Inventors: Jung Hoi Kim, Hoi Jin Ha
  • Publication number: 20090168174
    Abstract: The present invention relates to a stereo optical engine structure for projection, and more particularly, to a stereo optical engine structure for projection for combining two images to project one stereo image.
    Type: Application
    Filed: May 29, 2007
    Publication date: July 2, 2009
    Applicant: REDROVER CO., LTD.
    Inventors: Jung Hoi Kim, Hoi Jin Ha