Patents by Inventor Wook Ji

Wook Ji 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: 20070097487
    Abstract: An optical deflection device for a display application. The optical deflection device includes a semiconductor substrate including an upper surface region and one or more electrode devices provided overlying the upper surface region. The optical deflection device also includes a hinge device including a silicon material and coupled to the upper surface region. The optical deflection device further includes a spacing defined between the upper surface region and the hinge device and a mirror structure including a post portion coupled to the hinge device and a mirror plate portion coupled to the post portion and overlying the hinge device.
    Type: Application
    Filed: June 5, 2006
    Publication date: May 3, 2007
    Applicant: Miradia Inc.
    Inventors: Xiao Yang, Yuxiang Wang, Wook Ji, Justin Payne, Ye Wang, William Worley, Dongmin Chen, Howard Woo
  • Publication number: 20070097486
    Abstract: A display system includes a light source and a first optical system coupled to the light source and adapted to provide an illumination beam along an illumination path. The display system also includes a spatial light modulator positioned in the illumination path. The spatial light modulator includes a semiconductor substrate including a plurality of electrode devices and a hinge structure coupled to the semiconductor substrate. The hinge structure includes silicon material. The spatial light modulator also includes a mirror post coupled to the hinge structure and extending to a predetermined distance from the semiconductor substrate and a mirror plate coupled to the mirror post and overlying the plurality of electrode devices. The display system further includes a second optical system coupled to the spatial light modulator and adapted to project an image onto a projection surface.
    Type: Application
    Filed: June 5, 2006
    Publication date: May 3, 2007
    Applicant: Miradia Inc.
    Inventors: Xiao Yang, Yuxiang Wang, Wook Ji, Justin Payne, Ye Wang, William Worley, Dongmin Chen, Howard Woo
  • Publication number: 20070097485
    Abstract: A method for forming an optical deflection device includes providing a semiconductor substrate comprising an upper surface region and a plurality of drive devices within one or more portions of the semiconductor substrate. The upper surface region includes one or more patterned structure regions and at least one open region to expose a portion of the upper surface region to form a resulting surface region. The method also includes forming a planarizing material overlying the resulting surface region to fill the at least one open region and cause formation of an upper planarized layer using the fill material. The method further includes forming a thickness of silicon material at a temperature of less than 300 ° C. to maintain a state of the planarizing material.
    Type: Application
    Filed: June 5, 2006
    Publication date: May 3, 2007
    Applicant: Miradia Inc.
    Inventors: Xiao Yang, Yuxiang Wang, Wook Ji, Justin Payne, Ye Wang, Howard Woo