Patents by Inventor Ki-Duck Kwon

Ki-Duck Kwon 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: 5670755
    Abstract: An information input apparatus having both functions of touch panel and digitizer is disclosed including a stylus pen for applying a power source and for touching, a panel having upper and lower substrates, a first resistive layer formed on the upper substrate, a second resistive layer formed on the lower substrate, and a spacer for maintaining a predetermined distance and insulation between the first and second resistive layers, and mode selection means for selectively switching between ground and a power source for contact with the second resistive layer, to thereby select an operation mode for operating the panel as a touch panel or digitizer.
    Type: Grant
    Filed: April 12, 1995
    Date of Patent: September 23, 1997
    Assignee: Samsung Display Devices Co., Ltd.
    Inventor: Ki-duck Kwon
  • Patent number: 5627347
    Abstract: A digitizer includes a flat panel medium with which a stylus contacts for information input, an outputting device for visualizing and outputting information according to the information input by the stylus, and a resistor installed between the outputting device and the flat panel medium in a predetermined pattern, wherein a flat panel glass substrate having a predetermined thickness is laminated on the outputting. The resistor has a predetermined conductivity and is laminated on the glass substrate in a predetermined pattern, and a thin film dielectric layer is laminated on the patternized resistor.
    Type: Grant
    Filed: April 14, 1994
    Date of Patent: May 6, 1997
    Assignee: Samsung Display Devices Co., Ltd.
    Inventor: Ki-Duck Kwon
  • Patent number: 5408226
    Abstract: A liquid crystal display (LCD) using a plasma addressing method includes a sequentially arranged face plate, intermediary plate, and rear plate separated from each other by predetermined distances; a liquid crystal portion including a liquid crystal material between said face and intermediary plates for displaying an image in accordance with the arrangement of the liquid crystal material; and a plasma portion formed by sealing a discharge gas between the intermediary and rear plates for rearranging the liquid crystal material by adjusting the discharging state of the discharge gas. The LCD has AC voltage-supply parallel column electrodes on the inner surface of the face plate for supplying a constant frequency AC voltage, data signal-supply anodes on the inner surface of the rear plate for supplying data signals, and line scanning signal-supplying cathodes insulated from and at right angles to the data signal-supply anodes on the inner surface of the rear plate for supplying line scanning signals.
    Type: Grant
    Filed: December 23, 1992
    Date of Patent: April 18, 1995
    Assignee: Samsung Electron Devices Co., Ltd.
    Inventor: Ki-duck Kwon
  • Patent number: 5396149
    Abstract: This disclosure relates to a color PDP comprising a plurality of striped color filters formed in parallel on the inner surface of a front plate, a plurality of dielectric layers formed on the color filters and having a plurality of light-passing holes formed at predetermined intervals on those portions corresponding to respective color filters, a white fluorescent layer formed on the dielectric layer, and a plurality of anodes formed on the white fluorescent layer corresponding to the color filters and each having light-passing openings formed on the portion corresponding to respective light-passing holes of the dielectric layer, thereby preventing optical crosstalk between adjacent cathodes in the direction of a scanning line and obtaining uniform luminance.
    Type: Grant
    Filed: September 25, 1992
    Date of Patent: March 7, 1995
    Assignee: Samsung Electron Devices Co., Ltd.
    Inventor: Ki-duck Kwon
  • Patent number: 5377029
    Abstract: A plasma addressed liquid crystal display is disclosed whose addressing unit comprises barriers of a predetermined height formed between planar second and third substrates, a single or divided first electrode positioned on the inner face of the third substrate, and second electrodes parallel to the barriers, thereby facilitating manufacturing and allowing for a large screen display.
    Type: Grant
    Filed: October 8, 1992
    Date of Patent: December 27, 1994
    Assignee: Samsung Electron Devices Co., Ltd.
    Inventors: Seung-Woo Lee, Ki-Duck Kwon
  • Patent number: 5361080
    Abstract: A liquid crystal display (LCD) using a plasma addressing mode can be applied to the picture display of the two field-technique of an interlaced system used in televisions and whose plasma channels are formed by parallel arranged second electrodes, dielectric lines overlappingly arranged on the second electrodes, and discharge gas injected between the second electrodes. A driving method of the plasma channel is such that discharge occurs according to the potential difference of voltages supplied to two adjacent second electrodes. In scan-driving, one picture consists of two fields, wherein odd and the following even second electrodes as a pair are sequentially enabled to discharge in the first field, and even and the following odd second electrodes as a pair are sequentially enabled to discharge in the second field, thereby decreasing the number of electrodes, facilitating the manufacture of large-sized screens, and simplifying the fabrication process.
    Type: Grant
    Filed: January 14, 1993
    Date of Patent: November 1, 1994
    Assignee: Samsung Electron Devices Co., Ltd.
    Inventor: Ki-duck Kwon
  • Patent number: 5214521
    Abstract: A plasma addressed liquid crystal display in which the structure of the plasma address portion is improved is disclosed. In the plasma address portion of the present liquid crystal display, a plurality of independent parallel discharge spaces are formed by the grooves formed on a middle plate, and each pair of second electrodes formed by a screen printing are formed to be opposed on the groove. The liquid crystal display has advantages of easy manufacturing of a low cost.
    Type: Grant
    Filed: July 14, 1992
    Date of Patent: May 25, 1993
    Assignee: Samsung Electron Devices Co., Ltd.
    Inventors: Ki-duck Kwon, Seung-woo Lee
  • Patent number: 5116704
    Abstract: A barrier rib forming method for a PDP including a process of forming an emulsion layer as a filmed deposition upon a glass substrate having transparent electrodes thereon. Exposing the film to ultraviolet rays to produce electrodes with a proper pattern of an emulsion layer thereon. Printing, drying and heating a glass paste deposited on said emulsion. Ultrasonically vibrating the glass substrate to remove the emulsion layer and glass paste from the glass substrate.
    Type: Grant
    Filed: September 6, 1989
    Date of Patent: May 26, 1992
    Assignee: Samsung Electron Device Co., Ltd.
    Inventor: Ki-Duck Kwon