Patents by Inventor Won mi Hwang

Won mi Hwang 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: 7633572
    Abstract: A liquid crystal display (LCD) includes a first substrate having an array of wiring lines and pixel regions. The pixel regions have pixel electrodes, thin film transistors with drain electrodes, and storage capacitors. The LCD also includes a second substrate having color filters, black matrices, opened regions to receive external light positioned in regions in which the black matrices are not positioned, and transparent common electrodes. Liquid crystal is between the first and second substrates. The opened regions correspond to first regions in which the drain electrodes and the pixel electrodes are connected and second regions in which the storage capacitors are positioned. In one embodiment, the liquid is driven in a normally white mode when the LCD is driven in a transmissive mode, and is driven in a normally black mode when the LCD is driven in a reflective mode.
    Type: Grant
    Filed: September 13, 2006
    Date of Patent: December 15, 2009
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Do Young Kim, Hae Jin Heo, Ji Ryun Park, Ghang Kim, Won Mi Hwang
  • Publication number: 20090207340
    Abstract: A liquid crystal display device including a liquid crystal display panel on which an image is displayed; first and second polarizing plates each attached to upper and lower surfaces of the liquid crystal display panel; a lamp emitting light; a light guide plate guiding light from the lamp to the liquid crystal display panel; and a prism sheet disposed between the light guide plate and the liquid crystal display panel and having a plurality of prism bulges arranged in a surface thereof, the prism bulges having a predetermined pitch, wherein an arrangement direction of the prism bulges on the prism sheet is cross to the transmission axis of the second polarizing plate at a predetermined angle to the transmission axis.
    Type: Application
    Filed: October 15, 2008
    Publication date: August 20, 2009
    Inventors: Jin-Seok Jang, Duk-Woon Choi, Won-Mi Hwang
  • Patent number: 7041520
    Abstract: A method for fabricating LCDs based on a plastic film is disclosed.
    Type: Grant
    Filed: October 18, 2004
    Date of Patent: May 9, 2006
    Assignee: Softpixel, Inc.
    Inventors: Won mi Hwang, Jong han Jeong