Patents by Inventor Cheal-gi Kim

Cheal-gi 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: 8823616
    Abstract: A liquid crystal display device includes; gate lines disposed on a display region, data lines disposed on the display region, wherein the data lines intersect with, and are insulated from, the gate lines, a gate driver which drives the gate lines, a plurality of data drivers which generate a data voltage from an input power source voltage and supply the data voltage to the data lines, and a power source voltage supplying unit which supplies different power source voltages to each of the data drivers according to a distance of each data driver from the gate driver.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: September 2, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyoung-wook Kim, Min-sung Choi, Seung-ho Baek, Sang-youn Kim, Byoung-haw Park, Ji-eun Jang, Cheal-gi Kim
  • Patent number: 8624811
    Abstract: A panel assembly includes a display panel and a panel driving apparatus. The display panel includes a data line and a gate line extended in a direction that crosses the data line. The panel driving apparatus includes a first gate driving circuit that outputs a first gate signal to the gate line, and a second gate driving circuit disposed in an area that corresponds to an inverter and that outputs a second gate signal to the gate line, the second gate signal being different from the first gate signal.
    Type: Grant
    Filed: May 26, 2009
    Date of Patent: January 7, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Joo-Hwan Kim, Cheal-Gi Kim, Min-Sung Choi
  • Patent number: 8471796
    Abstract: An apparatus for providing grayscale voltages and a display device using the same are provided. The display device includes a grayscale voltage provider that provides grayscale voltages using a first reference voltage and a second reference voltage in accordance with a selection signal. A data driver applies data voltages to data lines using the grayscale voltages and an image signal. A gate driver successively provides a gate-on voltage to the gate lines. A display panel displays an image for each frame using the data voltages and the gate-on voltage.
    Type: Grant
    Filed: April 24, 2009
    Date of Patent: June 25, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kyu-Min Kwon, Ho-Sup Choi, Sang-Youn Kim, Byoung-Haw Park, Cheal-Gi Kim, Heung-Sik Tae
  • Patent number: 8199085
    Abstract: A display apparatus and a driving method thereof, in which the display apparatus includes a temperature sensor detecting a temperature, a first memory, a timing controller that receives an (n?1)th image signal and an nth image signal of consecutive frames, corrects the nth image signal and outputs the nth image signal, wherein the timing controller generates a clock signal whose phase varies according to the detected temperature, writes the nth image signal in the first memory in synchronization with the clock signal, reads the (n?1)th image signal from the first memory, and compares the nth image signal and the (n?1)th image signal with each other to then correct the nth image signal based on the comparison result, a data driver that provides an image-data voltage corresponding to the corrected signal of the nth image signal, and a liquid crystal panel that displays an image corresponding to the image-data voltage.
    Type: Grant
    Filed: September 14, 2007
    Date of Patent: June 12, 2012
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Sang-youn Kim, Cheal-gi Kim, Min-sung Choi, Seung-ho Baek, Hyoung-wook Kim, Byoung-haw Park, Ji-eun Jang
  • Publication number: 20100123653
    Abstract: An apparatus for providing grayscale voltages and a display device using the same are provided. The display device includes a grayscale voltage provider that provides grayscale voltages using a first reference voltage and a second reference voltage in accordance with a selection signal. A data driver applies data voltages to data lines using the grayscale voltages and an image signal. A gate driver successively provides a gate-on voltage to the gate lines. A display panel displays an image for each frame using the data voltages and the gate-on voltage.
    Type: Application
    Filed: April 24, 2009
    Publication date: May 20, 2010
    Inventors: Kyu-Min Kwon, Ho-Sup Choi, Sang-Youn Kim, Byoung-Haw Park, Cheal-Gi Kim, Heung-Sik Tae
  • Publication number: 20100073354
    Abstract: A panel assembly includes a display panel and a panel driving apparatus. The display panel includes a data line and a gate line extended in a direction that crosses the data line. The panel driving apparatus includes a first gate driving circuit that outputs a first gate signal to the gate line, and a second gate driving circuit disposed in an area that corresponds to an inverter and that outputs a second gate signal to the gate line, the second gate signal being different from the first gate signal.
    Type: Application
    Filed: May 26, 2009
    Publication date: March 25, 2010
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Joo-Hwan KIM, Cheal-Gi KIM, Min-Sung CHOI
  • Patent number: 7494242
    Abstract: A backlight assembly structured to reduce vibrations and impacts that are transmitted to fluorescent lamps. The backlight assembly includes a diffuser plate diffusing light and including indented portions in a bottom surface thereof, a plurality of lamps disposed under the diffuser plate and emitting the light, and a reflective plate disposed under the lamps and reflecting the light.
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: February 24, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Cheal-gi Kim, Sung-rae Kang
  • Publication number: 20080239184
    Abstract: A liquid crystal display device includes; gate lines disposed on a display region, data lines disposed on the display region, wherein the data lines intersect with, and are insulated from, the gate lines, a gate driver which drives the gate lines, a plurality of data drivers which generate a data voltage from an input power source voltage and supply the data voltage to the data lines, and a power source voltage supplying unit which supplies different power source voltages to each of the data drivers according to a distance of each data driver from the gate driver.
    Type: Application
    Filed: October 31, 2007
    Publication date: October 2, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyoung-wook KIM, Cheal-gi KIM, Min-sung CHOI, Seung-ho BAEK, Sang-youn KIM, Byoung-haw PARK, Ji-eun JANG
  • Publication number: 20080136767
    Abstract: A display apparatus and a driving method thereof, in which the display apparatus includes a temperature sensor detecting a temperature, a first memory, a timing controller that receives an (n?1)th image signal and an nth image signal of consecutive frames, corrects the nth image signal and outputs the nth image signal, wherein the timing controller generates a clock signal whose phase varies according to the detected temperature, writes the nth image signal in the first memory in synchronization with the clock signal, reads the (n?1)th image signal from the first memory, and compares the nth image signal and the (n?1)th image signal with each other to then correct the nth image signal based on the comparison result, a data driver that provides an image-data voltage corresponding to the corrected signal of the nth image signal, and a liquid crystal panel that displays an image corresponding to the image-data voltage.
    Type: Application
    Filed: September 14, 2007
    Publication date: June 12, 2008
    Inventors: Sang-youn Kim, Cheal-gi Kim, Min-sung Choi, Seung-ho Baek, Hyoung-wook Kim, Byoung-haw Park, Ji-eun Jang
  • Publication number: 20080094335
    Abstract: Disclosed are a liquid crystal display and a method of driving the same. The liquid crystal display includes a liquid crystal display panel displaying an image; a gate driver applying gate signals to the liquid crystal display panel; a data driver applying data signals to the liquid crystal display panel; and a signal controller controlling the gate driver and the data driver. The signal controller includes a control signal generating unit multiplying a frame rate, and an image signal processing unit correcting image data of each of multiplied frames by alternately using a plurality of correction data set having different correction characteristics.
    Type: Application
    Filed: October 23, 2007
    Publication date: April 24, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.,
    Inventors: Joo Hwan KIM, Cheal Gi KIM, Yong Jin SHIN
  • Publication number: 20080079868
    Abstract: A backlight assembly structured to reduce vibrations and impacts that are transmitted to fluorescent lamps. The backlight assembly includes a diffuser plate diffusing light and including indented portions in a bottom surface thereof, a plurality of lamps disposed under the diffuser plate and emitting the light, and a reflective plate disposed under the lamps and reflecting the light.
    Type: Application
    Filed: September 28, 2007
    Publication date: April 3, 2008
    Inventors: Cheal-gi Kim, Sung-rae Kang