Patents by Inventor Sang-Hyuk Lee

Sang-Hyuk Lee 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: 20040125304
    Abstract: The present invention is related to an array substrate for use in an IPS-LCD device, which prevents disclination that may occur between common and pixel electrodes. The pixel electrode in a pixel region includes a plurality of pixel fingers and a pixel horizontal portion, and the common electrode in the pixel region includes a plurality of common fingers extending from a common line parallel with the pixel fingers. Each of the common fingers has a gentle slope outline at a portion where the common finger meets the pixel finger, wherein the common fingers do not meet the pixel horizontal portion in the pixel region.
    Type: Application
    Filed: November 18, 2003
    Publication date: July 1, 2004
    Inventors: Gue-Tai Lee, Cheol-Woo Park, Sang-Hyuk Lee
  • Patent number: 6752933
    Abstract: A phosphor having longer lifespan which includes sulfur and has a perovskite structure. The phosphor further satisfies the following formula: MTiO3:A where M is an alkaline earth metal and A is a rare earth element. The sulfur-containing phosphor shows good luminance and lifespan characteristics compared to existing SrTiO3 based phosphors, without containing cadmium that is harmful to the environment. Therefore, the phosphor is advantageously utilized for various display applications including vacuum fluorescent displays (VFDs) and field emission displays (FEDs).
    Type: Grant
    Filed: December 27, 2001
    Date of Patent: June 22, 2004
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Il Yu, Sang-hyuk Lee, Young-chul You, Kyu-chan Park
  • Patent number: 6738110
    Abstract: An array substrate for in-plane switching (IPS) mode liquid crystal display (LCD) device includes a gate line and a common line in a horizontal direction on a substrate, a data line crossing the gate line and the common line, a pixel electrode and a common electrode on the substrate, and a thin film transistor at a crossing point of the gate line and the data line, the thin film transistor having a gate electrode, an active layer and source and drain electrodes, the gate electrode having a slope that satisfies a numeral expression |&thgr;R−&thgr;g|=89°˜91° (degree) wherein &thgr;R is an angle of a rubbing direction measured from an arbitrary horizontal line and &thgr;g is an angle of the slope of the gate electrode measured from the arbitrary horizontal line.
    Type: Grant
    Filed: December 19, 2002
    Date of Patent: May 18, 2004
    Assignee: LG. Philips LCD Co., Ltd.
    Inventor: Sang-Hyuk Lee
  • Publication number: 20040070719
    Abstract: A method for discharging an in-plane switching mode liquid crystal display panel includes providing a color filter substrate and a thin film transistor substrate, forming a liquid crystal layer between the color filter substrate and thin film transistor substrate to form a liquid crystal display panel, and discharging at least one surface of the liquid crystal display panel by an ionizer.
    Type: Application
    Filed: September 26, 2003
    Publication date: April 15, 2004
    Applicant: LG.Philips LCD Co., Ltd.
    Inventor: Sang-Hyuk Lee
  • Patent number: 6669868
    Abstract: A phosphor having increased luminance and lifespan which includes a halide flux of the Group 1 element of the periodic table has a perovskite structure and satisfies the following formula: MTiO3: (A,B) where M is an alkaline earth metal, A is a rare earth element, and B is a Group 13 element of the periodic table. The halide flux-containing phosphor shows good luminance and lifespan characteristics compared to conventional phosphors without using sulfur and environmentally harmful cadmium in a host matrix. Therefore, the phosphor is advantageously utilized for various display applications including vacuum fluorescent displays (VFDs) and field emission displays (FEDs).
    Type: Grant
    Filed: December 27, 2001
    Date of Patent: December 30, 2003
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Il Yu, Sang-hyuk Lee, Young chul You, Kyu-chan Park
  • Publication number: 20030123010
    Abstract: An array substrate for in-plane switching (IPS) mode liquid crystal display (LCD) device includes a gate line and a common line in a horizontal direction on a substrate, a data line crossing the gate line and the common line, a pixel electrode and a common electrode on the substrate, and a thin film transistor at a crossing point of the gate line and the data line, the thin film transistor having a gate electrode, an active layer and source and drain electrodes, the gate electrode having a slope that satisfies a numeral expression |&thgr;R−&thgr;g|=89°˜91° (degree) wherein &thgr;R is an angle of a rubbing direction measured from an arbitrary horizontal line and &thgr;g is an angle of the slope of the gate electrode measured from the arbitrary horizontal line.
    Type: Application
    Filed: December 19, 2002
    Publication date: July 3, 2003
    Inventor: Sang-Hyuk Lee
  • Publication number: 20020145379
    Abstract: A phosphor having longer lifespan which includes sulfur and has a perovskite structure.
    Type: Application
    Filed: December 27, 2001
    Publication date: October 10, 2002
    Applicant: Samsung SDI Co., Ltd.
    Inventors: II Yu, Sang-Hyuk Lee, Young-chul You, Kyu-chan Park
  • Publication number: 20020121855
    Abstract: A phosphor compliant with formula (1) below and a perovskite structure containing samarium (Sm):
    Type: Application
    Filed: December 26, 2001
    Publication date: September 5, 2002
    Applicant: SAMSUNG SDI CO., LTD.
    Inventors: Young-chul You, Kyu-chan Park, Sang-Hyuk Lee, Il Yu
  • Publication number: 20020121627
    Abstract: A phosphor having increased luminance and lifespan which includes a halide flux of the Group 1 element of the periodic table has a perovskite structure and satisfies the following formula:
    Type: Application
    Filed: December 27, 2001
    Publication date: September 5, 2002
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Il Yu, Sang-hyuk Lee, Young chul You, Kyu-chan Park
  • Patent number: 5684330
    Abstract: A chip-sized semiconductor package having a semiconductor chip formed with bonding pads; a circuit board provided with contact pads for electrically connecting the circuit board to external terminals, and circuit patterns for electrically connecting the circuit board to the chip; a tape bonding the circuit board to the chip; and wires electrically connecting the circuit board to the bonding pads on the chip; the package being encapsulated by a molding compound so that a part of a surface of the circuit board where the contact pads are formed is exposed.
    Type: Grant
    Filed: November 30, 1995
    Date of Patent: November 4, 1997
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Sang Hyuk Lee