Patents by Inventor Ki Duk Kim

Ki Duk Kim 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: 7629988
    Abstract: A method of driving a liquid crystal display including a color filter array having a plurality of red, green, blue and white color filters includes applying first driving signals to first liquid crystal cells during one frame interval, the first liquid crystal cells being overlapped by the red, green and blue color filters, respectively, applying a second driving signal to a second liquid crystal cell during a partial period of the one frame interval, the second liquid crystal cell being overlapped by the white color filter, and applying a third driving signal different from the second driving signal to the second liquid crystal cell during a remaining period of the one frame interval.
    Type: Grant
    Filed: June 29, 2004
    Date of Patent: December 8, 2009
    Assignee: LG Display Co., Ltd.
    Inventors: In Jae Chung, Eui Yeol Oh, Ki Duk Kim
  • Publication number: 20090289961
    Abstract: An LCD device adapted to improve its picture quality in spite of the brightness variation is disclosed. The LCD device includes: a gray scale modulator modulating R, G, and B data; a backlight dimming controller generating a back dimming signal that is inversely proportional to the modulated R, G, and B data generated in the gray scale modulator; and an over driving controller selectively overshoot-compensating the R, G, and B data from the gray scale modulator in every gray scale level through the comparison of the R, G, and B data of current frame and the R, G, and B data of previous frame. Wherein, the modulated R, G, and B data each include maximum gray scale levels lower than those of the overshoot compensated R, G, and B data.
    Type: Application
    Filed: November 6, 2008
    Publication date: November 26, 2009
    Inventors: Ki Duk Kim, Bo Gun Seo, Sun Young Kim
  • Patent number: 7619605
    Abstract: Provided are a liquid crystal display device capable of improving image quality with enhanced response characteristic and a driving method thereof. The liquid crystal display device is implemented with a combination of an Over Driving Circuit driving scheme and a scan driving scheme. Specifically, in the scan driving scheme, a backlight driving voltage has a waveform that initially has an initial peak value that decreases as time passes.
    Type: Grant
    Filed: November 23, 2005
    Date of Patent: November 17, 2009
    Assignee: LG Display Co., Ltd.
    Inventors: Hyun Ho Shin, Ki Duk Kim, Jae Kyeong Yun
  • Publication number: 20090015601
    Abstract: Provided is an LCD device. The LCD device includes: an input unit, a backlight unit, a histogram analyzing unit, a data correcting unit, a liquid crystal panel driving unit, a duty ratio determining unit, and a lamp driving unit. The input unit inputs data corresponding to an image displayed on a liquid crystal panel, and the backlight unit includes a plurality of lamps. The histogram analyzing unit analyzes a histogram of data input from the input unit to generate a select signal according to a brightness state of the data. The data correcting unit corrects pixel data to be supplied to the liquid crystal panel using at least one of a plurality of gamma compensating characteristic curves. The liquid crystal panel driving unit drives the liquid crystal panel. The duty ratio determining unit generates a plurality of lamp-on signals. The lamp driving unit generates a lamp driving voltage corresponding to the lamp-on signal.
    Type: Application
    Filed: December 31, 2007
    Publication date: January 15, 2009
    Inventor: Ki Duk Kim
  • Patent number: 7443377
    Abstract: A driving method and apparatus for a liquid crystal display is disclosed in which the contrast ratio of data to be displayed is expanded and brightness of a back light is selectively changed in correspondence with the data. Whether the data is that of an initial color field is determined. The data is converted into brightness components and arranged into a histogram for each frame. Data having an expanded contrast is generated by the histogram. A control value is extracted from the histogram. The brightness of the back light is generated in correspondence with the control value if an initial color field is not displayed. However, if an initial color field is displayed, a predetermined brightness is supplied irrespective of the extracted control value.
    Type: Grant
    Filed: June 28, 2004
    Date of Patent: October 28, 2008
    Assignee: LG Display Co., Ltd.
    Inventor: Ki Duk Kim
  • Patent number: 7435411
    Abstract: The present invention relates to a paecilomyces genus microorganism and microbial insecticide for controlling the soil pests using the same, more particularly to a paecilomyces genus microorganism having insecticidal activity to soil pests and a microbial insecticide for controlling the soil pests containing the same. Since the microbial insecticide of the present invention shows excellent insecticidal activity to harmful soil pests, it can effectively be used as a environment-compatible insecticide to prevent the soil pests from farmland crops.
    Type: Grant
    Filed: November 2, 2002
    Date of Patent: October 14, 2008
    Assignee: Korea Research Institute of Bioscience and Biotechnology
    Inventors: Ho Yong Park, Kwang Hee Son, Eun Young Suh, Ki-Duk Kim, Dong Ha Shin
  • Publication number: 20080211752
    Abstract: Provided are a liquid crystal display device capable of improving motion image quality and a method for driving the same. The liquid crystal display device according to an embodiment of the present invention includes an input unit, an overdriving compensation unit, a selection unit, and a data selection control unit. The input unit supplies pixel data to a pixel of a liquid crystal panel. The overdriving compensation unit outputs overdriving compensation pixel data using the pixel data input from the input unit. The selection unit selects one of the pixel data input from the input unit and the overdriving compensation data input from the overdriving compensation unit. The data selection control unit detects whether the pixel data input from the input unit is motion image data to control the selection unit.
    Type: Application
    Filed: December 28, 2007
    Publication date: September 4, 2008
    Inventor: Ki Duk KIM
  • Publication number: 20080204482
    Abstract: An over-driving look-up table automatic setting apparatus for a liquid crystal display device includes: an input device that specifies a critical response condition for a liquid crystal display device; a sensor that detects an amount of light from the liquid crystal display device and that generates a signal corresponding to the amount of light; a response state detecting unit that measures the response state from the signal generated by the sensor; a controller that receives the response state for gray scale differences from each of a plurality of gray scale values to determine transient pixel data producing a response state that satisfies the critical response condition and that sets an over-driving look-up table by mapping the transient pixel data to corresponding gray scale difference values for each gray scale value; and a memory that stores the over-driving look-up table.
    Type: Application
    Filed: November 2, 2007
    Publication date: August 28, 2008
    Inventor: Ki Duk Kim
  • Patent number: 7416880
    Abstract: The present invention relates to a novel fungus of Metarhizium genus and a method for controlling soil pests using the same, more particularly to a novel Metarhizium anisopliae HY-2 and a microbial insecticide comprising the same and a method for controlling soil pests using the same. The Metarhizium anisopliae HY-2 can effectively be used to control the soil pests such as Scarabaeidae.
    Type: Grant
    Filed: November 2, 2002
    Date of Patent: August 26, 2008
    Assignee: Korea Research Institute of Bioscience and Biotechnology
    Inventors: Ho Yong Park, Kwang Hee Son, Eun Young Suh, Ki-Duk Kim, Dong Ha Shin
  • Publication number: 20080158139
    Abstract: Provided is a liquid crystal display device that can improve the image quality of a moving image. The liquid crystal display device includes a driver, a backlight unit, a first lamp driver, a second lamp driver, and a lamp driving controller. The liquid crystal panel divided is into at least three regions, and has a plurality of lamps arranged to correspond to each of the divided regions. Lamps of the lamps arranged in upper and lower regions of the liquid crystal panel are connected to each other. The first lamp driver controls on/off times of the lamps in the upper and lower regions of the liquid crystal panel. The second lamp driver controls on/off times of the lamps in the region excluding the upper and lower regions of the liquid crystal panel. The lamp driving controller controls the first and second lamp drivers using signals supplied from the driver.
    Type: Application
    Filed: December 26, 2007
    Publication date: July 3, 2008
    Inventor: Ki Duk Kim
  • Publication number: 20080158454
    Abstract: A liquid crystal display device includes a liquid crystal panel, a timing controller, a compensation unit and a panel drive circuit. The liquid crystal panel has a plurality of color pixels, each of the color pixels including two sub-pixels which represent two different colors. The timing controller generates a sub-pixel data stream of two sub-frame format. The sub-pixel data stream of two sub-frame format includes a first sub-pixel data for a first sub-frame and a second sub-pixel data for a second sub-frame. The first sub-pixel data and the second sub-pixel data have different gamma characteristics. The compensation unit is operable to compensate the first sub-pixel data and the second sub-pixel data with different rates. The panel drive circuit drives the sub-pixels on the liquid crystal panel and supplies the sub-pixels with the compensated first sub-pixel data for the first sub-frame and the compensated second sub-pixel data for the second sub-frame.
    Type: Application
    Filed: July 23, 2007
    Publication date: July 3, 2008
    Inventors: Hyun Ho Shin, Ki Duk Kim
  • Patent number: 7375719
    Abstract: A driving method and apparatus for a liquid crystal display for minimizing motion blur in a moving picture as well as displaying a fresh and dynamic image is disclosed. In the driving method, data inputted from the exterior are converted into brightness components to produce a histogram for each frame. A control value is extracted from various characteristics of the histogram. Turn-on times of a plurality of lamps positioned in such a manner to overlap with a liquid crystal display panel are controlled in correspondence with the control value.
    Type: Grant
    Filed: June 18, 2004
    Date of Patent: May 20, 2008
    Assignee: LG. Philips LCD. Co., Ltd
    Inventors: Eui Yeol Oh, Hyun Seok Kim, Min Ho Sohn, Ki Duk Kim
  • Patent number: 7352352
    Abstract: The liquid crystal display device includes a histogram analyzer analyzing a histogram of an input image and determining the input image as being in one of a low brightness mode, a normal mode, and a high brightness mode based on the histogram analysis, a back light controller controlling a maximum brightness of a back light unit based on the mode determination, and a data modulator enlarging the histogram of the input image to modulate data of the input image. The histogram analyzer detects a most frequent value of gray scale occurring most frequently in the input image of one frame, compares the most frequent value with a predetermined low reference gray value and a predetermined high reference gray value, and determines the input image as in one of the low brightness mode, the normal mode, and the high brightness mode based on the compared result.
    Type: Grant
    Filed: June 28, 2004
    Date of Patent: April 1, 2008
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Eui Yeol Oh, Tae Ho You, Hee Jeong Park, Ki Duk Kim
  • Patent number: 7339565
    Abstract: An apparatus of driving the liquid crystal display of the present invention includes a picture quality improving unit that receives input data for a frame, wherein the picture quality improving unit analyzes green input data to determine a brightness of the frame and performs a gamma compensation on the input data in accordance with the brightness of the frame to generate output data; and a timing controller that rearranges the output data to supply the rearranged output data to the data driver.
    Type: Grant
    Filed: December 30, 2003
    Date of Patent: March 4, 2008
    Assignee: LG.Philips LCD Co., Ltd.
    Inventor: Ki Duk Kim
  • Patent number: 7289100
    Abstract: A method of driving a liquid crystal display includes arranging an externally provided first data into a histogram for each frame, producing a second data having an expanded contrast using the histogram, determining a control value by extracting a peak value at a position where brightness components are concentrated in a distribution, and controlling a brightness of a back light in accordance with a gray level of the control value.
    Type: Grant
    Filed: June 28, 2004
    Date of Patent: October 30, 2007
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Min Ho Sohn, Ki Duk Kim
  • Publication number: 20070146299
    Abstract: A liquid crystal display is disclosed. The disclosed liquid crystal display includes a driver circuit configured to generate at least one liquid crystal driving pulse and at least one backlight driving pulse. The liquid crystal driving pulse includes a normal data signal and a blanking signal, and the backlight driving pulse includes an active signal and a reference signal. The liquid crystal display also includes a backlight unit configured to generate light in response to the backlight driving pulse and a liquid crystal panel configured to display an image having a light transmittance that varies depending upon the liquid crystal driving pulse and the backlight driving pulse.
    Type: Application
    Filed: November 6, 2006
    Publication date: June 28, 2007
    Inventors: Ki Duk Kim, Jae kyeong Yun
  • Patent number: 7083968
    Abstract: The present invention relates to a novel microbe belonging to Serratia family, its isolation method and the preparation method using it. More particularly, the present invention relates to a microorganism of Serratia family producing laccase, lignin peroxidase and Mn-dependent-peroxidase which are the kinds of lignin lyases, and a method for separating the microbe from insect gut, as well as a method for preparing laccase, lignin peroxidase and Mn-dependent-peroxidase. The microorganism of the present invention can be used not only in the treatment of industrial sewage and harmful environmental substance but also in oil degradation, in biological bleaching of pulp since it can produce lignin lyases. More over, the microbe can also be used effectively in industry of preparing fuel, forage and other chemicals through lignin degradation.
    Type: Grant
    Filed: July 31, 2001
    Date of Patent: August 1, 2006
    Assignee: Insect Biotech Co., Ltd.
    Inventors: Ho Yong Park, Ki Duk Kim, Dong Ha Shin
  • Publication number: 20050168422
    Abstract: A detachable liquid crystal display device which includes a liquid crystal module that is adapted to be coupled with a cradle, the liquid crystal module including a) a liquid crystal panel; b) an optical sheet provided on a rear surface of the liquid crystal panel; c) an interface disposed on a rear surface of the liquid crystal panel for receiving first image data and image control signals; d) a power receiver disposed on the rear surface of the liquid crystal panel for receiving electrical power; e) a memory card for storing the first image data; and f) a timing controller for receiving second image data from external devices in accordance with the image control signals and permitting the first image data stored in the memory card to be displayed in the liquid crystal panel.
    Type: Application
    Filed: December 29, 2004
    Publication date: August 4, 2005
    Applicant: LG.PHILIPS LCD CO. LTD.
    Inventors: Eui-Yeol Oh, Nam-Yong Kong, Ki-Duk Kim, Seong-Man Jeon, Tae-Ho You, Hee-Jeong Park
  • Publication number: 20050019309
    Abstract: The present invention relates to a novel fungus of Metarhizium genus and a method for controlling soil pests using the same, more particularly to a novel Metarhizium anisopliae HY-2 and a microbial insecticide comprising the same and a method for controlling soil pests using the same. The Metarhizium anisopliae HY-2 can effectively be used to control the soil pests such as Scarabaeidae.
    Type: Application
    Filed: November 2, 2002
    Publication date: January 27, 2005
    Inventors: Ho Park, Kwang Son, Eun Suh, Ki-Duk Kim, Dong Shin
  • Publication number: 20050008619
    Abstract: The present invention relates to a paecilomyces genus microorganism and microbial Mixing insecticide for controlling the soil pests using the same, more particularly to a paecilomyces genus microorganism having insecticidal activity to soil pests and a microbial insecticide for controlling the soil pests containing the same. Since the microbial insecticide of the present invention shows excellent insecticidal activity to harmful soil pests, it can effectively be used as a environment-compatible insecticide to prevent the soil pests from farmland crops.
    Type: Application
    Filed: November 2, 2002
    Publication date: January 13, 2005
    Inventors: Ho Park, Kwang Son, Eun Suh, Ki-Duk Kim, Dong Ha Shin