Patents by Inventor Hun Jeoung

Hun Jeoung 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: 20050018114
    Abstract: A transflective liquid crystal display includes gate and data lines perpendicular to each other and defining a plurality of unit pixels. Each unit pixel includes a plurality of sub-pixel regions, which each have a transmissive portions and a reflective portion. The transmissive portions are gathered together within each unit pixel at corners of the sub-pixel regions opposing corners in which thin film transistors near the crossings of the gate and data lines are disposed. A passivation layer covering the thin film transistors and the gate and data lines has an opening that corresponds to the transmissive portions in the unit pixel. A reflector is formed over the passivation layer in each sub-pixel region and corresponds in position to the reflective portion. A pixel electrode in each sub-pixel region contacts the thin film transistor through a contact hole in the passivation layer.
    Type: Application
    Filed: April 14, 2004
    Publication date: January 27, 2005
    Inventors: Jae-Deok Park, Hun Jeoung, Soon-Kwang Hong
  • Publication number: 20040266040
    Abstract: A method for fabricating an in-plane switching LCD device includes forming a data line and a light-shielding layer on a substrate, forming a pixel electrode line and an active region with a polycrystalline silicon thin film, forming a first insulating layer on the substrate, forming a gate electrode and a common electrode line on the first insulating layer, forming a second insulating layer on the substrate, forming a first contact hole that exposes at least portions of the data line and the active region, and forming a connection electrode that connects at least portions of the exposed data line and the active region.
    Type: Application
    Filed: June 4, 2004
    Publication date: December 30, 2004
    Applicant: LG. Philips LCD Co., Ltd.
    Inventors: Byeong Koo Kim, Yong Min Ha, Hun Jeoung
  • Publication number: 20040257147
    Abstract: A method of applying an OFF-state offset to a display device includes: supplying a ground voltage from a data driving circuit; to a source electrode of a thin film transistor supplying a gate voltage from a gate driving circuit to a gate electrode of the thin film transistor, the gate voltage turning off the thin film transistor; and supplying an AC voltage to a drain electrode of the thin film transistor.
    Type: Application
    Filed: June 14, 2004
    Publication date: December 23, 2004
    Inventors: Hun Jeoung, Sung-Hak Lee
  • Publication number: 20040183978
    Abstract: An array substrate for in-plane switching liquid crystal display device includes a gate line on a substrate, a data line crossing the gate line to define a pixel region, a semiconductor layer including an active area and a source area, wherein the active area overlaps the gate line and the source area overlaps the data line, a drain electrode connected to the semiconductor layer, a first capacitor electrode in the pixel region and connected to the drain electrode, a pixel electrode connected to the first capacitor electrode and substantially in parallel to the data line, a common line substantially parallel to the gate line, a second capacitor electrode connected to the common line and overlapping the first capacitor electrode, and a common electrode connected to the common line and alternatively arranged with the pixel electrode, wherein the source area of the semiconductor layer, the drain electrode, the first capacitor electrode and the pixel electrode include doped polycrystalline silicon.
    Type: Application
    Filed: March 19, 2004
    Publication date: September 23, 2004
    Inventor: Hun Jeoung
  • Patent number: 6733937
    Abstract: An exposure method for a liquid crystal display devices formed as a plurality of unit panels on a large-sized sheet of glass using a stepper includes the steps of recording benchmark measurements of the large-sized sheet of glass, determining a change in dimension of the large-sized sheet of glass prior to a stepper positioning and exposing a mask on at least one unit panel of the plurality of unit panels, and compensating for the change in dimension by changing a position of an exposure for the at least one unit panel to a position other than where the stepper had previously exposed the at least one unit panel with a first mask.
    Type: Grant
    Filed: December 16, 2002
    Date of Patent: May 11, 2004
    Assignee: LG. Philips LCD Co., Ltd.
    Inventor: Hun Jeoung
  • Publication number: 20040061674
    Abstract: An apparatus for applying an OFF-state stress to a P-MOS device of one of an array substrate for an LCD device and an LCD panel having attached substrates includes: a power supply unit supplies a source power; a panel loading unit including a plurality of panel jigs on which one of the array substrate and the LCD panel is loaded; a voltage control unit including a plurality of voltage control channels and modulating a voltage of the source power; a frequency control unit including a plurality of frequency control channels and modulating a frequency of the source power; a time setting unit determining a time period of supplying the source power; and a panel selecting unit including a plurality of panel selecting channels and modulating an application of the source power.
    Type: Application
    Filed: June 26, 2003
    Publication date: April 1, 2004
    Inventors: Byeong-Koo Kim, Hun Jeoung
  • Publication number: 20030124443
    Abstract: An exposure method for a liquid crystal display devices formed as a plurality of unit panels on a large-sized sheet of glass using a stepper includes the steps of recording benchmark measurements of the large-sized sheet of glass, determining a change in dimension of the large-sized sheet of glass prior to a stepper positioning and exposing a mask on at least one unit panel of the plurality of unit panels, and compensating for the change in dimension by changing a position of an exposure for the at least one unit panel to a position other than where the stepper had previously exposed the at least one unit panel with a first mask.
    Type: Application
    Filed: December 16, 2002
    Publication date: July 3, 2003
    Applicant: LG.PHILIPS LCD CO., LTD.
    Inventor: Hun Jeoung