Patents by Inventor Hyung-Ryul KANG

Hyung-Ryul KANG 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: 10565914
    Abstract: A scan driver includes a plurality of signal lines configured to transfer a scan line selection signal for selecting a target scan line among a plurality of scan lines, and a plurality of logical elements respectively connected to some or all of a plurality of signal line groups respectively including grouped ones of the signal lines based on a combination calculation, the plurality of logical elements being respectively connected to the scan lines, and being configured to provide output signals to the scan lines, wherein a number of the signal line groups is greater than, or equal to, a number of the logical elements.
    Type: Grant
    Filed: April 7, 2016
    Date of Patent: February 18, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventor: Hyung-Ryul Kang
  • Patent number: 10127848
    Abstract: A display device, including a display panel including a plurality of pixels coupled to scan lines and data lines, the display panel having a display area divided into a first display area at a first side thereof and a second display area at a second side opposite to the first side; a scan driver to supply a scan signal through the scan lines; and a data driver to supply a data signal through the data lines, the scan lines including first sub-scan lines corresponding to the first display area and second sub-scan lines corresponding to the second display area, and switching elements being coupled between the first sub-scan lines and the second sub-scan lines.
    Type: Grant
    Filed: May 25, 2016
    Date of Patent: November 13, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Hyung Ryul Kang
  • Patent number: 9812066
    Abstract: An organic light emitting display includes a plurality of pixel row groups, a scan driver, a data driver, and a data distributor. Each pixel group includes the same number of pixel rows, and the pixel row groups are sequentially driven. The data distributor demultiplexes data signals for input into the pixels. The data signals are input to the pixels after threshold voltage compensation is performed at substantially a same time for pixels in each of the pixel row groups. Data signals are to be input to pixels in one pixel row group while threshold voltage compensation is performed for pixels in another pixel row group adjacent to the one pixel row group.
    Type: Grant
    Filed: April 7, 2015
    Date of Patent: November 7, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Cheol Min Kim, Hyung ryul Kang, Se Byung Chae
  • Patent number: 9704434
    Abstract: A display device includes a plurality of pixel rows including a plurality of pixel circuits; a scan driver supplying scan signals to the plurality of pixel rows; and a data driver supplying a data voltage to the plurality of pixel circuits of the plurality of pixel rows, wherein the plurality of pixel circuits each include driving transistors and an organic light emitting diode which emit light depending on a current flowing in the driving transistors, the plurality of pixel rows are divided into a plurality of blocks, each of the blocks including at least one pixel row, and a period for which the data voltage is written in the plurality of pixel circuits in a first block among the plurality of blocks and a period for which a threshold voltage of the driving transistors of the plurality of pixel circuits in a second block temporally close to the first block is compensated partially overlap each other.
    Type: Grant
    Filed: July 17, 2015
    Date of Patent: July 11, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyung-Ryul Kang, Cheol Min Kim, Se-Byung Chae
  • Patent number: 9626903
    Abstract: An organic light-emitting diode (OLED) display panel is disclosed. In one aspect, the panel includes a first transistor which receives a data signal transferred through a data line in response to a scan signal transferred through a gate line and a second transistor which receives a first power signal in response to a bias signal and outputs a source-driving signal. The panel also includes a third transistor which receives the source-driving signal in response to an output signal of the first transistor and outputs a driving signal, an organic light-emitting element which comprises a first electrode being connected to the third transistor and which receives the driving signal and a second electrode which receives a second power signal. The panel further includes a fourth transistor which is electrically connected to the third transistor and which receives the driving signal.
    Type: Grant
    Filed: March 3, 2014
    Date of Patent: April 18, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Soon-Dong Kim, Yang-Hwa Choi, Cheol-Min Kim, Hyung-Ryul Kang
  • Publication number: 20170084237
    Abstract: A scan driver includes a plurality of signal lines configured to transfer a scan line selection signal for selecting a target scan line among a plurality of scan lines, and a plurality of logical elements respectively connected to some or all of a plurality of signal line groups respectively including grouped ones of the signal lines based on a combination calculation, the plurality of logical elements being respectively connected to the scan lines, and being configured to provide output signals to the scan lines, wherein a number of the signal line groups is greater than, or equal to, a number of the logical elements.
    Type: Application
    Filed: April 7, 2016
    Publication date: March 23, 2017
    Inventor: Hyung-Ryul Kang
  • Publication number: 20170084226
    Abstract: A display device, including a display panel including a plurality of pixels coupled to scan lines and data lines, the display panel having a display area divided into a first display area at a first side thereof and a second display area at a second side opposite to the first side; a scan driver to supply a scan signal through the scan lines; and a data driver to supply a data signal through the data lines, the scan lines including first sub-scan lines corresponding to the first display area and second sub-scan lines corresponding to the second display area, and switching elements being coupled between the first sub-scan lines and the second sub-scan lines.
    Type: Application
    Filed: May 25, 2016
    Publication date: March 23, 2017
    Inventor: Hyung Ryul KANG
  • Patent number: 9437135
    Abstract: A pixel and an organic light emitting display, the pixel including an organic light emitting diode, a first driver, and a second driver. The first driver controls whether current is supplied to the organic light emitting diode, according to a first data signal from a first data line. The second driver controls whether current is supplied to the organic light emitting diode, according to a second data signal from a second data line.
    Type: Grant
    Filed: June 26, 2014
    Date of Patent: September 6, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Soon-Dong Kim, Hyung-Ryul Kang
  • Publication number: 20160217739
    Abstract: A display device includes a plurality of pixel rows including a plurality of pixel circuits; a scan driver supplying scan signals to the plurality of pixel rows; and a data driver supplying a data voltage to the plurality of pixel circuits of the plurality of pixel rows, wherein the plurality of pixel circuits each include driving transistors and an organic light emitting diode which emit light depending on a current flowing in the driving transistors, the plurality of pixel rows are divided into a plurality of blocks, each of the blocks including at least one pixel row, and a period for which the data voltage is written in the plurality of pixel circuits in a first block among the plurality of blocks and a period for which a threshold voltage of the driving transistors of the plurality of pixel circuits in a second block temporally close to the first block is compensated partially overlap each other.
    Type: Application
    Filed: July 17, 2015
    Publication date: July 28, 2016
    Inventors: Hyung-Ryul Kang, Cheol Min Kim, Se-Byung Chae
  • Publication number: 20160155387
    Abstract: An organic light emitting display includes a plurality of pixel row groups, a scan driver, a data driver, and a data distributor. Each pixel group includes the same number of pixel rows, and the pixel row groups are sequentially driven. The data distributor demultiplexes data signals for input into the pixels. The data signals are input to the pixels after threshold voltage compensation is performed at substantially a same time for pixels in each of the pixel row groups. Data signals are to be input to pixels in one pixel row group while threshold voltage compensation is performed for pixels in another pixel row group adjacent to the one pixel row group.
    Type: Application
    Filed: April 7, 2015
    Publication date: June 2, 2016
    Inventors: Cheol Min KIM, Hyung ryul KANG, Se Byung CHAE
  • Publication number: 20150008405
    Abstract: A pixel and an organic light emitting display, the pixel including an organic light emitting diode, a first driver, and a second driver. The first driver controls whether current is supplied to the organic light emitting diode, according to a first data signal from a first data line. The second driver controls whether current is supplied to the organic light emitting diode, according to a second data signal from a second data line.
    Type: Application
    Filed: June 26, 2014
    Publication date: January 8, 2015
    Inventors: Soon-Dong KIM, Hyung-Ryul KANG
  • Publication number: 20150009104
    Abstract: An organic light-emitting diode (OLED) display is disclosed. In one aspect, the OLED display includes a plurality of pixels arranged in a first direction and a second direction. Each of the pixels includes a first sub-pixel having a substantially isosceles triangle and a second sub-pixel having a substantially isosceles triangle shape, wherein the second sub-pixel is inverted with respect to the first sub-pixel. Each of the pixels also includes a third sub-pixel and a fourth sub-pixel each having a substantially right triangle shape, wherein the fourth sub-pixel is inverted with respect to the third sub-pixel. Two pixels adjacent to each other in the first direction are symmetric about an axis of symmetry that is parallel with the second direction, and two pixels adjacent to each other along the second direction are symmetric about an axis of symmetry that is parallel with the first direction.
    Type: Application
    Filed: October 30, 2013
    Publication date: January 8, 2015
    Applicant: Samsung Display Co., Ltd.
    Inventors: Jeong-Kyoo Kim, Hyung-Ryul Kang
  • Publication number: 20140333597
    Abstract: An organic light-emitting diode (OLED) display panel is disclosed. In one aspect, the panel includes a first transistor which receives a data signal transferred through a data line in response to a scan signal transferred through a gate line and a second transistor which receives a first power signal in response to a bias signal and outputs a source-driving signal. The panel also includes a third transistor which receives the source-driving signal in response to an output signal of the first transistor and outputs a driving signal, an organic light-emitting element which comprises a first electrode being connected to the third transistor and which receives the driving signal and a second electrode which receives a second power signal. The panel further includes a fourth transistor which is electrically connected to the third transistor and which receives the driving signal.
    Type: Application
    Filed: March 3, 2014
    Publication date: November 13, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Soon-Dong Kim, Yang-Hwa Choi, Cheol-Min Kim, Hyung-Ryul Kang
  • Publication number: 20140118322
    Abstract: An organic light emitting display device is capable of improving uniformity between panels while improving an operation speed. The organic light emitting display device includes: a scan driver for supplying scan signals to scan lines; a data driver for supplying data signals to data lines; pixels located at crossing regions between the scan lines and the data lines, wherein the pixels are configured to control an amount of current supplied to an organic light emitting diode, according to a bias voltage; and a bias voltage supplier for supplying the bias voltage to the pixels, wherein a voltage value of the bias voltage is set to generate light having a desired luminance when the pixels emit light.
    Type: Application
    Filed: January 30, 2013
    Publication date: May 1, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Soon-Dong KIM, Yang-Hwa CHOI, Cheol-Min KIM, Hyung-Ryul KANG