Patents by Inventor Seong Hak Moon

Seong Hak Moon 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: 20050093424
    Abstract: The present invention discloses a field emission display device which can improve luminance of a field emission display, prevent crosstalk between neighboring cells of the field emission display, and lower a driving voltage by narrowing an interval between electrodes. The field emission display device includes a single cathode electrode positioned at the center of the field emission display device and formed on an insulation layer, gate electrodes formed in via holes formed on the insulation layer, and carbon nano tubes formed on both surfaces of the single cathode electrode, respectively.
    Type: Application
    Filed: October 28, 2004
    Publication date: May 5, 2005
    Inventor: Seong-Hak Moon
  • Patent number: 6882330
    Abstract: A field emission display device includes: a reset driving unit for supplying a reset pulse to a scan line and a scan driving unit for supplying a scan pulse to the scan line. The reset driving unit includes a first reset drive IC for receiving a first reset data from a reset data supplying unit, a second reset drive IC for receiving a second reset data from the reset data supplying unit and a first switch connected to the first reset drive IC and turned on/off by the second reset drive IC.
    Type: Grant
    Filed: March 25, 2002
    Date of Patent: April 19, 2005
    Assignee: LG Electronics Inc.
    Inventor: Seong Hak Moon
  • Publication number: 20050029923
    Abstract: An FED device includes an anode electrode formed on a substrate; a phosphor layer formed on the anode electrode; and field emission devices for emitting at least two electron beams onto the phosphor layer. An area where a fluorescent material is excited can be enlarged and luminance and efficiency of the FED can be enhanced.
    Type: Application
    Filed: August 5, 2004
    Publication date: February 10, 2005
    Inventor: Seong-Hak Moon
  • Publication number: 20050029916
    Abstract: A surface conduction electron emission display includes a plurality of pixel cells each consisting of four discharge cells mutually corresponding each other centering around crossings of scan lines and data lines.
    Type: Application
    Filed: August 5, 2004
    Publication date: February 10, 2005
    Inventor: Seong-Hak Moon
  • Publication number: 20040207612
    Abstract: A driving device of a flat display panel and its method are disclosed. The driving device includes a scan driving unit for applying scan pulses o both ends of each scan line of the flat display panel.
    Type: Application
    Filed: April 16, 2004
    Publication date: October 21, 2004
    Applicant: LG Electronics Inc.
    Inventor: Seong-Hak Moon
  • Publication number: 20040207575
    Abstract: An aging driving method of a field emission display device can secure long lifetimes of panel by reducing possibilities of generation of arcing, by largely increasing energy distribution under a low voltage, and by applying a pulse voltage which is varied to reduce energy distribution under a high voltage as time goes, in aging processing. In addition, aging is performed in a very short time by using small energy in a pulse supply, thereby preventing a damage of a panel and much shortening an aging time. In addition, aging is performed in each pre-aging process and a main-aging process, to reduce contaminants, thereby lengthening lifetimes of a panel and securing reliability of a product.
    Type: Application
    Filed: January 7, 2004
    Publication date: October 21, 2004
    Applicant: LG Electronics Inc.
    Inventor: Seong-Hak Moon
  • Publication number: 20040207576
    Abstract: A spacer discharging apparatus and method of an FED are disclosed in which a pulse control signal synchronized with a vertical synchronous signal is outputted during a blanking time period. In the spacer discharging apparatus, a discharge path is formed to connect an anode electrode and a spacer ground electrode of an FED and a switch unit selectively connects the discharge path. Electric charge charged in the spacer is quickly discharged, so that generation of noise or visible appearance of the spacer can be prevented.
    Type: Application
    Filed: April 16, 2004
    Publication date: October 21, 2004
    Applicant: LG Electronics Inc.
    Inventor: Seong Hak Moon
  • Publication number: 20040155839
    Abstract: A scan driving apparatus of a field emission display device includes: a pulse generator for outputting a prescribed level of voltage through ON/OFF operation of a plurality of switching units; and a scan driving IC for receiving the prescribed level of voltage from the pulse generator and selectively outputting it to an external display panel. A delay time of a scan pulse can be reduced, a crosstalk due to an overlap phenomenon according to time repetition between scan lines can be reduced, a life span of a cell can be lengthened, and a uniformity of the cell can be enhanced.
    Type: Application
    Filed: January 26, 2004
    Publication date: August 12, 2004
    Applicant: LG Electronics Inc.
    Inventor: Seong Hak Moon
  • Publication number: 20040155874
    Abstract: An apparatus for driving a flat display panel includes a scan driving unit for controlling an upper voltage value and a lower voltage value which are applied to an IC (Integrated Circuit) for driving a scan electrode of a flat display panel.
    Type: Application
    Filed: January 15, 2004
    Publication date: August 12, 2004
    Applicant: LG Electronics Inc.
    Inventor: Seong-Hak Moon
  • Publication number: 20040085306
    Abstract: In an aging apparatus of a FED (field emission display) and a method thereof capable of reducing damage occurrable in applying of a direct current high voltage to an anode electrode of a FED to perform aging, increasing life span of the FED and reducing a time required for aging, the method includes converting a direct current high voltage into a first high voltage pulse having uniform frequency and duty cycle or a second high voltage pulse having a frequency and a duty cycle varied according to time; and applying the converted first high voltage pulse or the second high voltage pulse to an anode electrode of a panel.
    Type: Application
    Filed: October 28, 2003
    Publication date: May 6, 2004
    Applicant: LG Electronics Inc.
    Inventor: Seong Hak Moon
  • Publication number: 20040085307
    Abstract: Disclosed are an aging apparatus of a field emission device and a method thereof. The apparatus comprises an aging operation controlling unit for converting a direct current high voltage applied to an anode electrode into a high voltage of a pulse form, gradually increasing the converted high voltage of a pulse form with a certain interval and thus applying to the anode electrode, and performing an aging operation by controlling a voltage applied to a scan driving unit. According to this, arc is prevented, an entire panel aging time is reduced, and energy consumption is reduced.
    Type: Application
    Filed: October 28, 2003
    Publication date: May 6, 2004
    Applicant: LG Electronics Inc.
    Inventor: Seong Hak Moon
  • Publication number: 20030210211
    Abstract: A driving circuit and method of an MIM FED are disclosed. A luminance compensation amount is determined according to a data amount of an input image signal and/or a position of a scan line, and compensated, thereby obtaining a uniform luminance on the entire screen.
    Type: Application
    Filed: May 7, 2003
    Publication date: November 13, 2003
    Applicant: LG Electronics Inc.
    Inventor: Seong-Hak Moon
  • Publication number: 20030098873
    Abstract: A driving method for flat panel display device, capable of lowering a peak current which is generated in driving a flat field emission display, supplies a data pulse to a data line and supplies a scan pulse to a scan line, being synchronized with the data line, and the method is conducted by supplying a data pulse having a predetermined tilt to the data line or supplying a scan pulse having a predetermined tilt to the scan line.
    Type: Application
    Filed: August 13, 2002
    Publication date: May 29, 2003
    Applicant: LG Electronics Inc.
    Inventor: Seong Hak Moon
  • Publication number: 20030098826
    Abstract: A field emission display device is disclosed. Since the size of the cells adjacent to the spacer is set smaller than the size of the other cells, the luminance and aperture rate of the panel can be improved. In addition, the width of the pulse supplied to the cells adjacent to the spacer and the width of the pulse supplied to the cells not adjacent to the spacer are set different, so that the same luminance can be displayed in every cell.
    Type: Application
    Filed: September 18, 2002
    Publication date: May 29, 2003
    Applicant: LG Electronics Inc.
    Inventor: Seong Hak Moon
  • Publication number: 20030059525
    Abstract: A hybrid electro luminescence (EL) panel and a driving method thereof using advantages of an organic EL panel and inorganic EL panel comprise a first substrate having luminescent substance formed with organic substance, and a second substrate having luminescent substrate formed with inorganic substance, and construct the first substrate and the second substrate to be overlapped with each other, and thereby, a brightness can be improved, the panel can be scaled up, a life span of the panel is increased, and color balance can be controlled easily.
    Type: Application
    Filed: September 10, 2002
    Publication date: March 27, 2003
    Applicant: LG Electronics Inc.
    Inventor: Seong-Hak Moon
  • Publication number: 20030058198
    Abstract: An electroluminescence (EL) panel display and its driving method are capable of easily setting a color balance and improving a luminance, for which an EL panel includes a first substrate having a plurality of red and green inorganic materials thereon and a second substrate having a plurality of blue inorganic materials overlapped with the red and green inorganic materials.
    Type: Application
    Filed: July 25, 2002
    Publication date: March 27, 2003
    Applicant: LG Electronics Inc.
    Inventor: Seong Hak Moon
  • Publication number: 20030034939
    Abstract: A driving apparatus of an electroluminescent display device includes: a scan driving unit for receiving a voltage from a single voltage source and sequentially supplying a scan pulse of which polarity is reversed by the frame unit to scan lines; and a data driving unit for receiving the voltage and sequentially supplying a data pulse with an opposite polarity to the polarity of the scan pulse to data lines. An optimum voltage to a pixel cell can be supplied by completely removing electric charges charged in the pixel cell by reversing a positive pulse or a negative pulse generated by a single power source by the frame unit and supplying it to each data line and scan line.
    Type: Application
    Filed: August 9, 2002
    Publication date: February 20, 2003
    Applicant: LG Electronics Inc.
    Inventor: Seong Hak Moon
  • Publication number: 20030030600
    Abstract: An apparatus for driving a metal insulator metal device and method for the same, which are capable of removing electric charge charged in a pixel cell inside a panel, includes a data supply unit which supplies video data to a plurality of data lines, a scan driving unit for sequentially supplying the scan pulse which is synchronized with the video data to at least one scan line among the plurality of scan lines which cross the data lines, and a switching unit for controlling the output impedance of the scan driving unit.
    Type: Application
    Filed: July 25, 2002
    Publication date: February 13, 2003
    Applicant: LG Electronics Inc.
    Inventor: Seong Hak Moon
  • Publication number: 20030006947
    Abstract: A field emission display device, including data lines which are formed in a panel, scan lines which are formed in the direction crossing the data lines in the panel, a first connector which is installed at an end of the data lines and electrically connected with the data lines, a second connector which is installed at an end of the scan lines and electrically connected with the scan lines and a printed circuit board which is installed on the rear surface of the panel, can display an image of a uniform brightness regardless of the position of the screen, and manufacture the device as a large screen. Also, the present invention can maintain the brightness of the whole screen uniformly by differently supplying the driving voltage and pulse width of the driving voltage which are supplied to the data driving driver according to the position of the data line, and compensating voltage descending caused by difference in the resistance according to the position of the scan line by converting the inputted data value.
    Type: Application
    Filed: June 26, 2002
    Publication date: January 9, 2003
    Applicant: LG ELECTRONICS INC.
    Inventor: Seong Hak Moon
  • Publication number: 20020196210
    Abstract: A field emission display device includes: a reset driving unit for supplying a reset pulse to a scan line and a scan driving unit for supplying a scan pulse to the scan line. A driving method of a field emission display device includes the steps of: sequentially supplying a scan pulse to a plurality of scan lines; supplying a data pulse to a plurality of data lines in synchronization with the scan pulse; and supplying a plurality of reset pulses to the plurality of scan lines in order to remove an electric charge charged in a cell where the scan pulse and the data pulse have been supplied. By applying the lamp type reset pulse having a slope to the scan line, the displacement current of the instantaneous peak current can be reduced. Thus, a damage to the insulation layer between the data electrode and the scan electrode can be prevented. And accordingly, the life span of the cell can be prolonged and the device of the driving IC can be prevented from breaking down.
    Type: Application
    Filed: March 25, 2002
    Publication date: December 26, 2002
    Applicant: LG Electronics Inc.
    Inventor: Seong Hak Moon