Patents by Inventor Hae Sung Park

Hae Sung Park 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: 6184958
    Abstract: A method of aligning liquid crystals is disclosed. The method includes forming an optically active compound-containing polymeric film to be used as an aligning layer on a surface of each of a lower substrate and an upper substrate; irradiating circularly polarized light on the polymeric film to obliquely align the optically active compound contained relative to the substrate surface to form the aligning layer; positioning the lower substrate and the upper substrate in opposite to each other such that the polymeric film on the lower substrate is opposite to the polymeric film on the upper substrate; and pouring a liquid crystal between the substrates, thereby to obliquely align molecules of the liquid crystal due to the optically active compound aligned.
    Type: Grant
    Filed: September 24, 1997
    Date of Patent: February 6, 2001
    Assignee: Hyundai Electronics Industries Co., Ltd.
    Inventors: Tong-Kun Lim, Sang-Un Choi, Hae-Sung Park
  • Patent number: 5929501
    Abstract: A liquid crystal display device that includes a storage capacitor having a capacitor electrode for storing voltage applied to a pixel electrode for a constant period of time, is disclosed. The device includes: a plurality of data lines arranged in parallel over an insulation glass substrate; a plurality of gate lines arranged in parallel over the insulation glass, gate lines being crossed with the data lines to define a plurality of pixel regions; a plurality of the pixel electrodes formed at the pixel regions, respectively; a plurality of TFTs formed at the cross points of the data lines and the gate lines, and each TFT is connected to each data line and each pixel electrode, respectively; and a plurality of opaque layers formed on the insulation glass substrate 40, each light shielding layer consisting of a body and a plurality of protrusions, and the body being elongated along each data line and overlapped with the portions of pixel electrodes and each protrusion protruded from the body to each TFT.
    Type: Grant
    Filed: November 20, 1996
    Date of Patent: July 27, 1999
    Assignee: Hyundai Electronics Industries Co., Ltd.
    Inventors: Jae-Hak Shin, Hae-Sung Park
  • Patent number: 5886762
    Abstract: Disclosed is a liquid crystal display device comprising gate line; a data line intersecting with the gate line over the gate line; a first electrode of transparent metal material comprising: a first portion elongated over the data line along the first direction and perpendicularly intersecting with the data line; a second portion comprising a plurality of branches each elongated along the second direction starting from the first portion of the first electrode toward the gate line; and a third portion separated by a predetermined distance along the second direction with the gate line, and elongated along the first direction starting from the longest branch to a space formed between the shortest branch and its closest branch; a second electrode of transparent metal material, formed on the same plane as the first electrode, the second electrode having a first portion corresponding to the second portion of the first electrode and a second portion corresponding to the third or first portion of the first electrode.
    Type: Grant
    Filed: November 19, 1997
    Date of Patent: March 23, 1999
    Assignee: Hyundai Electronics Industries Co., Ltd.
    Inventors: Seung-Hee Lee, Seok-Lyul Lee, Hyang-Yul Kim, Bong-Gyu Rho, Sun-Gil Kwon, Hae-Sung Park