Patents by Inventor Jong-Hee NA

Jong-Hee NA 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: 20160247483
    Abstract: A display apparatus includes a gamma controller configured to determine whether the target pixel unit is driven in both time division method and space division method based on a plurality of comparison values and a reference condition, and an output controller configured to generate normal gamma-data of the target pixel unit using a normal gamma curve if the plurality of comparison values satisfy the reference condition and to generate high gamma-data and low gamma-data of the target pixel unit using a high gamma curve and a low gamma curve in both time division method and space division method if the plurality of comparison values do not satisfy the reference condition.
    Type: Application
    Filed: July 23, 2015
    Publication date: August 25, 2016
    Inventors: Ji-Eun JANG, Go-Eun CHA, Ji-Hye CHOI, Hoi-Sik MOON, Jae-Seok CHOI, Shim-Ho YI, Jong-Hee NA, Woo-Young LEE, Woo-Jin JUNG, Kang-Hyun KIM, Jun-II PARK, Jung-Suk HAN, Jae-Seob CHUNG
  • Publication number: 20160196786
    Abstract: A gamma difference compensating apparatus includes a first gamma curve generating part, a front luminance measuring part, a front gamma calculating part, a second gamma curve generating part and a gamma compensating part. The first gamma curve generating part outputs a first gamma curve data. The front luminance measuring part measures a luminance of a left area from a front of the left area, measure a luminance of a right area from a front of the right area, and output a front luminance data. The front gamma calculating part outputs a front gamma data based on the front luminance data. The second gamma curve generating part applies the front gamma data to the first gamma data and output a second gamma curve data. The gamma compensating part compensates a gamma value of the left area and a gamma value of the right area.
    Type: Application
    Filed: April 28, 2015
    Publication date: July 7, 2016
    Inventors: Kang-Hyun KIM, Hoi-Sik MOON, Jong-Hee NA, Woo-Jin JUNG, Jae-Seob CHUNG
  • Publication number: 20160171939
    Abstract: A display apparatus includes a display panel that comprises a plurality of pixels, a first image data corrector configured to calculate a Mura correction value of input data based on gamma correction data of the input data, to add the Mura correction value to the input data to generate added input data, and to generate gamma correction data of the added input data, and a data driver configured to drive the plurality of pixels based on the gamma correction data provided from the first image data corrector.
    Type: Application
    Filed: July 2, 2015
    Publication date: June 16, 2016
    Inventors: Jong-Hee NA, Hoi-Sik MOON, Kang-Hyun KIM, Woo-Jin JUNG, Jae-Seob CHUNG, Jung-Suk HAN
  • Publication number: 20160148582
    Abstract: A vision inspection apparatus includes a first luminance profile generator configured to generate a plurality of first luminance profiles corresponding to the plurality of reference grayscales, a gamma corrector configured to calculate a gamma correction value of the display apparatus using the plurality of first luminance profiles corresponding to the plurality of reference grayscales, and a second luminance profile generator configured to apply the gamma correction value to each of the plurality of first luminance profiles and to generate a plurality of second luminance profiles corresponding to the plurality of reference grayscales.
    Type: Application
    Filed: April 7, 2015
    Publication date: May 26, 2016
    Inventors: Jae-Seob Chung, Hoi-Sik Moon, Kang-Hyun Kim, Jong-Hee Na, Woo-Jin Jung, Jung-Suk Han
  • Patent number: 9311875
    Abstract: A display device includes pixels respectively arranged in areas defined by gate lines and data lines, a gate driver that drives the gate lines in response to a gate pulse signal, a data driver that drives the data lines in response to a clock signal and a data signal, and a timing controller that applies the clock signal and the data signal to the data driver and the gate pulse signal to the gate driver in response to an image signal and a control signal. The timing controller periodically changes a pulse width of each of the gate pulse signal and the clock signal.
    Type: Grant
    Filed: May 10, 2013
    Date of Patent: April 12, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hak-Mo Choi, Jong-Hee Na, Gwangho Nam, Hoisik Moon, Chang-Soo Lee, Min-Yup Chae, Jae-Suk Choi
  • Publication number: 20160019865
    Abstract: A method of displaying an image on a display panel which comprises a plurality of pixels arranged as a matrix type includes measuring a tristimulus value of X, Y and Z values of a displayed image to generate a target curve, generating a corrected grayscale data of a red pixel, a green pixel and a blue pixel using X, Y and Z values of the target curve and converting the corrected grayscale data to a data voltage to provide a data line of the display panel with the data voltage.
    Type: Application
    Filed: January 27, 2015
    Publication date: January 21, 2016
    Inventors: Jung-Suk HAN, Hoi-Sik MOON, Kang-Hyun KIM, Jong-Hee NA, Jun-Il PARK, Woo-Jin JUNG, Jae-Seob CHUNG
  • Publication number: 20150194105
    Abstract: A method of reducing a total, per device, measurements taking time in a calibration system that uses a sensor array that serially reports out its readings and a data processing unit that needs to receive the reported out readings in good order before allowing an under-measurement first display device to advance away from a measurements taking station includes the step of not driving the first display device with all of required full screen test images where each is a full screen display of only a respective one of a predetermined minimum number of grayscale values produced as a minimum number of needed full screen sample images and; in place of at least a first plurality of the not-produced full screen images, driving the under-measurement first display device with a partial screen multi-pattern that presents a plurality of different grayscale values including ones not presented by those of all of the full screen test images that are used to drive the under-measurement first display device.
    Type: Application
    Filed: July 25, 2014
    Publication date: July 9, 2015
    Inventors: Jung-Suk HAN, Hoi-Sik MOON, Kang-Hyun KIM, Jong-Hee NA, Woo-Jin JUNG, Jae-Seob CHUNG
  • Patent number: 8860770
    Abstract: A method of driving a display panel includes driving a first sub area and a second sub area of a pixel part in a two-dimensional (2D) image mode, wherein a first luminance difference exists between the first and second sub areas in the 2D image mode, and driving the first sub area and the second sub area of the pixel part in a three-dimensional (3D) image mode, wherein a second luminance difference exists between the first and second sub areas in the 3D image mode, the second luminance difference being smaller than the first luminance difference.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: October 14, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yong-Ju Jeong, Jong-Hee Na, Young-Min Choi, Jae-Kil Lee, Seung-Kuk Yun, Ji-Eun Jang
  • Patent number: 8791969
    Abstract: A display device includes a first display panel facing a second display panel with a liquid crystal layer between them. The first display panel has a first gate line, a second gate line spaced apart from the first gate line, a first and second storage lines both spaced apart from the first gate line, first and second switching elements controlled by a first gate signal applied through the first gate line, a first sub-pixel electrode connected to the first switching element, a second sub-pixel electrode connected to the second switching element, a third switching element controlled by a second gate signal applied through the second gate line, and a coupling electrode connected to the third switching element and having a portion overlapping the second storage line. Different voltages are applied to the first storage line and the second storage line.
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: July 29, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yong-Jo Kim, Yoon-Jang Kim, Yoon-Sung Um, Jong-Hee Na, Young-Min Choi
  • Publication number: 20140176407
    Abstract: A display device includes pixels respectively arranged in areas defined by gate lines and data lines, a gate driver that drives the gate lines in response to a gate pulse signal, a data driver that drives the data lines in response to a clock signal and a data signal, and a timing controller that applies the clock signal and the data signal to the data driver and the gate pulse signal to the gate driver in response to an image signal and a control signal. The timing controller periodically changes a pulse width of each of the gate pulse signal and the clock signal.
    Type: Application
    Filed: May 10, 2013
    Publication date: June 26, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Hak-Mo CHOI, Jong-Hee Na, Gwangho Nam, Hoisik Moon, Chang-Soo Lee, Min-Yup Chae, Jae-Suk Choi
  • Publication number: 20120256977
    Abstract: A method of driving a display panel includes driving a first sub area and a second sub area of a pixel part in a two-dimensional (2D) image mode, wherein a first luminance difference exists between the first and second sub areas in the 2D image mode, and driving the first sub area and the second sub area of the pixel part in a three-dimensional (3D) image mode, wherein a second luminance difference exists between the first and second sub areas in the 3D image mode, the second luminance difference being smaller than the first luminance difference.
    Type: Application
    Filed: September 23, 2011
    Publication date: October 11, 2012
    Inventors: Yong-Ju Jeong, Jong-Hee Na, Young-Min Choi, Jae-Kil Lee, Seung-Kuk Yun, Ji-Eun Jang
  • Publication number: 20120033001
    Abstract: A display device includes a first display panel facing a second display panel with a liquid crystal layer between them. The first display panel has a first gate line, a second gate line spaced apart from the first gate line, a first and second storage lines both spaced apart from the first gate line, first and second switching elements controlled by a first gate signal applied through the first gate line, a first sub-pixel electrode connected to the first switching element, a second sub-pixel electrode connected to the second switching element, a third switching element controlled by a second gate signal applied through the second gate line, and a coupling electrode connected to the third switching element and having a portion overlapping the second storage line. Different voltages are applied to the first storage line and the second storage line.
    Type: Application
    Filed: June 10, 2011
    Publication date: February 9, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yong-Jo KIM, Yoon-Jang KIM, Yoon-Sung UM, Jong-Hee NA, Young-Min CHOI
  • Publication number: 20110109662
    Abstract: A driving apparatus for a liquid crystal display, which includes a first pixel, a second pixel and a third pixel that display different colors, includes: an image signal compensation unit that compensates input image signals corresponding to the first pixel, the second pixel, and the third pixel to generate compensated input image signals; and a data driver that supplies data voltages to the first pixel, the second pixel and the third pixel based on the compensated input image signals. The image signal compensation unit shifts a value of the input image signal corresponding to the first pixel by a first value with respect to a common voltage, shifts a value of the input image signal corresponding to the second pixel by a second value with respect to the common voltage, and shifts a value of the input image signal corresponding to the third pixel by a third value with respect to the common voltage.
    Type: Application
    Filed: October 12, 2010
    Publication date: May 12, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sang-Mi CHO, Young-Min CHOI, Sang-Chul LEE, Jae-Seob CHUNG, Jong-Hee NA, Dong-Ki LEE