Patents by Inventor Kyung Hoon Chung

Kyung Hoon Chung 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: 20200159054
    Abstract: A tiled display device includes an array of a plurality of display panels. Each of the plurality of display panels includes a plurality of pixels constituting a plurality of pixel rows and a plurality of pixel columns, a data distributor disposed between a first pixel of a first pixel row among the plurality of pixel rows and a second pixel of the first pixel row adjacent to the first pixel in a first direction, and a scan driver disposed between the second pixel and a third pixel adjacent to the second pixel in the first direction.
    Type: Application
    Filed: August 7, 2019
    Publication date: May 21, 2020
    Inventors: JUN KI JEONG, HYUN JOON KIM, KYUNG BAE KIM, KYUNG HOON CHUNG, CHONG CHUL CHAI
  • Patent number: 10657875
    Abstract: A display driving device including: a gate driver configured to provide a first gate selection signal to a first gate line of a display panel to select the first gate line; a source driver configured to provide an image signal corresponding to the first gate line to a source line; an Electrostatic Discharge (ESD) detection circuit configured to receive a power supply voltage, determine whether there is an ESD in the power supply voltage and, when the ESD is detected, generate a first detection signal; and a controller configured to receive the first detection signal to generate a masking signal, wherein the gate driver is configured to receive the masking signal and not provide a second gate selection signal to select a second gate line.
    Type: Grant
    Filed: July 13, 2018
    Date of Patent: May 19, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyung-Hoon Chung, Won Sik Kang, Jae Sung Kang, Hyeok Chul Kwon, Si Woo Kim, Su Hyun Yun, Sang Kyu Lee, Ji Hyun Lee, Seng-Sub Chun, Jong Han Choi
  • Patent number: 10559262
    Abstract: A scan sense driver includes a scan driver and a sense driver. The scan line driver provides a scan line enable signal based on a plurality of clock signals, a global clock signal, and a scan input signal during a scan time interval. The sense driver provides a sense enable signal based on the clock signals and a sense input signal during a sense time interval. The sense driver provides the sense enable signal during a period when an organic light-emitting diode of a pixel is to be tested for a malfunction.
    Type: Grant
    Filed: September 7, 2017
    Date of Patent: February 11, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Kyung-Hoon Chung
  • Publication number: 20190244985
    Abstract: A method of manufacturing a display device, the method including providing a substrate, forming a first electrode, a second electrode spaced from the first electrode and in a same plane as the first electrode, a first alignment line connected to the first electrode, and a second alignment line connected to the second electrode on the substrate, self-aligning the plurality of light emitting elements by providing a solution containing a plurality of light emitting elements on the substrate, removing the first alignment line and the second alignment line from the substrate on which the plurality of light emitting elements are self-aligned, forming a first contact electrode electrically connecting one end of each light emitting element to the first electrode, and forming a second contact electrode electrically connecting an other end of each light emitting element to the second electrode.
    Type: Application
    Filed: January 30, 2019
    Publication date: August 8, 2019
    Inventors: Hyun Joon KIM, Kyung Bae KIM, Kyung Hoon CHUNG, Mee Hye JUNG
  • Publication number: 20190147790
    Abstract: A display driving device including: a gate driver configured to provide a first gate selection signal to a first gate line of a display panel to select the first gate line; a source driver configured to provide an image signal corresponding to the first gate line to a source line; an Electrostatic Discharge (ESD) detection circuit configured to receive a power supply voltage, determine whether there is an ESD in the power supply voltage and, when the ESD is detected, generate a first detection signal; and a controller configured to receive the first detection signal to generate a masking signal, wherein the gate driver is configured to receive the masking signal and not provide a second gate selection signal to select a second gate line.
    Type: Application
    Filed: July 13, 2018
    Publication date: May 16, 2019
    Inventors: Kyung-Hoon CHUNG, Won Sik KANG, Jae Sung KANG, Hyeok Chui KWON, Si Woo KIM, Su Hyun YUN, Sang Kyu LEE, Ji Hyun LEE, Seng-Sub CHUN, Jong Han CHOI
  • Patent number: 10172233
    Abstract: A display device includes: a flexible substrate including a display unit and a plurality of peripheral units which surrounds the display unit and are bent to overlap a part of the display unit; a display member positioned at the display unit and which displays an image; and a signal line positioned at the plurality of peripheral units, where the plurality of peripheral units is bent in a way such that parts of the signal line, which are respectively positioned at adjacent peripheral units, are in contact with each other.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: January 1, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kyung Hoon Chung, Chul Kyu Kang
  • Patent number: 10152917
    Abstract: An organic light-emitting display apparatus includes a plurality of emission pixels, a plurality of dummy pixels, and a plurality of repair lines. The emission pixels are aligned in column and row directions in an active region. The dummy pixels are in a dummy region. The repair lines are connected to at least one of the at least one sub-emission pixel or at least one of the dummy pixels. Each emission pixel includes at least one sub-emission pixel. At least two sub-emission pixels aligned in a column or row direction are alternately connected to two repair lines.
    Type: Grant
    Filed: July 8, 2014
    Date of Patent: December 11, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Kyung-Hoon Chung
  • Publication number: 20180345332
    Abstract: A mask cleaning apparatus includes: a mask holding unit configured to hold a mask; a light source unit configured to irradiate light onto the mask to remove a deposition material accumulated on a surface of the mask; and a material collecting unit configured to collect the deposition material removed from the mask, wherein the material collecting unit includes: a plurality of collecting cases corresponding to kinds of the deposition material; a rotating plate having a suction hole; and a plate driving unit configured to rotate the rotating plate to connect the suction hole to at least one of the collecting cases. Based on the irradiated light, different organic deposition materials may be collected for reuse.
    Type: Application
    Filed: May 29, 2018
    Publication date: December 6, 2018
    Inventors: Myung Kyu KIM, Kyung Hoon Chung
  • Patent number: 10096594
    Abstract: A display panel includes: an electrostatic discharge (ESD) protection circuit area in a peripheral area surrounding a display area including pixels, the ESD protection circuit area including ESD protection circuits; a fan-out area in the peripheral area, including fan-out lines to receive data signals and a first pad to receive a first global signal; a common line area between the ESD protection circuit area and the fan-out area, including a first common line extending lengthwise in a pixel row direction; a first transmission line connecting lengthwise from the first pad to the first common line to transmit the first global signal to the first common line; and first global signal lines extending lengthwise in a pixel column direction from the first common line to the display area to concurrently transmit the first global signal to the pixels. The first transmission line is wider than the first global signal lines.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: October 9, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventor: Kyung-Hoon Chung
  • Patent number: 10081863
    Abstract: A thin-film depositing apparatus including a mask, and a chucking unit for adhering the mask to a surface of a substrate, wherein the chucking unit includes a plurality of magnet units that contact another surface of the substrate by independently rising or falling by using their weight and thus are magnetically combined with the mask.
    Type: Grant
    Filed: March 24, 2014
    Date of Patent: September 25, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kyung-Hoon Chung, You-Min Cha
  • Publication number: 20180157006
    Abstract: A laser processing apparatus includes a laser source which generates a laser beam; a scanner unit disposed in an optical path of the laser beam from the laser source and which adjusts the optical path of the laser beam from the laser source in a first direction or in a second direction different from the first direction; and a reflector unit disposed in an optical path of the laser beam adjusted by the scanner unit and which reflects the laser beam adjusted by the scanner unit, where the reflector unit includes a first sub-reflector unit which shifts an optical path of the laser adjusted by the scanner unit in the first direction, and a second sub-reflector unit which shifts an optical path of the laser beam adjusted by the scanner unit in a third direction opposite to the first direction.
    Type: Application
    Filed: October 25, 2017
    Publication date: June 7, 2018
    Inventors: Emil ASLANOV, Je Kil RYU, Hae Sook LEE, Kyung Hoon CHUNG, Gyoo Wan HAN
  • Patent number: 9953576
    Abstract: An organic light-emitting diode display is disclosed. In one aspect, the display includes a display substrate including a display area and a peripheral area surrounding the display area. Scan lines are formed over the display substrate and configured to transmit a scan signal, data lines and driving voltage lines crossing the scan lines are configured to respectively provide a data signal and a driving voltage, and switching elements are electrically connected to the scan lines and data lines. Pixel electrodes are electrically connected to the switching elements, an organic emission layer is formed over the pixel electrodes, and a common electrode is formed over the organic emission layer. A common voltage line is formed substantially parallel to the data lines and configured to transmit a common voltage to the common electrode.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: April 24, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jung-Mi Choi, Chul Kyu Kang, Kyung Hoon Chung
  • Publication number: 20180014399
    Abstract: A display device includes: a flexible substrate including a display unit and a plurality of peripheral units which surrounds the display unit and are bent to overlap a part of the display unit; a display member positioned at the display unit and which displays an image; and a signal line positioned at the plurality of peripheral units, where the plurality of peripheral units is bent in a way such that parts of the signal line, which are respectively positioned at adjacent peripheral units, are in contact with each other.
    Type: Application
    Filed: July 7, 2017
    Publication date: January 11, 2018
    Inventors: Kyung Hoon CHUNG, Chul Kyu KANG
  • Publication number: 20170365221
    Abstract: A scan sense driver includes a scan driver and a sense driver. The scan line driver provides a scan line enable signal based on a plurality of clock signals, a global clock signal, and a scan input signal during a scan time interval. The sense driver provides a sense enable signal based on the clock signals and a sense input signal during a sense time interval. The sense driver provides the sense enable signal during a period when an organic light-emitting diode of a pixel is to be tested for a malfunction.
    Type: Application
    Filed: September 7, 2017
    Publication date: December 21, 2017
    Inventor: Kyung-Hoon CHUNG
  • Patent number: 9767733
    Abstract: A scan sense driver includes a scan driver and a sense driver. The scan line driver provides a scan line enable signal based on a plurality of clock signals, a global clock signal, and a scan input signal during a scan time interval. The sense driver provides a sense enable signal based on the clock signals and a sense input signal during a sense time interval. The sense driver provides the sense enable signal during a period when an organic light-emitting diode of a pixel is to be tested for a malfunction.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: September 19, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventor: Kyung-Hoon Chung
  • Publication number: 20170062408
    Abstract: A display panel includes: an electrostatic discharge (ESD) protection circuit area in a peripheral area surrounding a display area including pixels, the ESD protection circuit area including ESD protection circuits; a fan-out area in the peripheral area, including fan-out lines to receive data signals and a first pad to receive a first global signal; a common line area between the ESD protection circuit area and the fan-out area, including a first common line extending lengthwise in a pixel row direction; a first transmission line connecting lengthwise from the first pad to the first common line to transmit the first global signal to the first common line; and first global signal lines extending lengthwise in a pixel column direction from the first common line to the display area to concurrently transmit the first global signal to the pixels. The first transmission line is wider than the first global signal lines.
    Type: Application
    Filed: April 22, 2016
    Publication date: March 2, 2017
    Inventor: Kyung-Hoon Chung
  • Patent number: 9570531
    Abstract: An organic light emitting display device includes a substrate comprising a major surface; a display region and a peripheral region surrounding the display region when viewed in a viewing direction perpendicular to the major surface; an array of a plurality of pixels disposed in the display region; and a first power line extending from the peripheral region into the display region, the first power line being electrically connected to the array of pixels at a contact point in the display region. When viewed in the viewing direction, the first power line includes: a first extension extending from the peripheral region to the display region; and a second extension connected to the first extension; and a third extension connected to the second extension and extending from a location in the display region toward the peripheral region.
    Type: Grant
    Filed: February 20, 2015
    Date of Patent: February 14, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kyung Hoon Chung, Chul-Kyu Kang, Jung-Mi Choi
  • Publication number: 20160321993
    Abstract: An organic light-emitting diode display is disclosed. In one aspect, the display includes a display substrate including a display area and a peripheral area surrounding the display area. Scan lines are formed over the display substrate and configured to transmit a scan signal, data lines and driving voltage lines crossing the scan lines are configured to respectively provide a data signal and a driving voltage, and switching elements are electrically connected to the scan lines and data lines. Pixel electrodes are electrically connected to the switching elements, an organic emission layer is formed over the pixel electrodes, and a common electrode is formed over the organic emission layer. A common voltage line is formed substantially parallel to the data lines and configured to transmit a common voltage to the common electrode.
    Type: Application
    Filed: December 16, 2015
    Publication date: November 3, 2016
    Inventors: Jung-Mi Choi, Chul Kyu Kang, Kyung Hoon Chung
  • Publication number: 20160117963
    Abstract: A scan sense driver includes a scan driver and a sense driver. The scan line driver provides a scan line enable signal based on a plurality of clock signals, a global clock signal, and a scan input signal during a scan time interval. The sense driver provides a sense enable signal based on the clock signals and a sense input signal during a sense time interval. The sense driver provides the sense enable signal during a period when an organic light-emitting diode of a pixel is to be tested for a malfunction.
    Type: Application
    Filed: March 27, 2015
    Publication date: April 28, 2016
    Inventor: Kyung-Hoon CHUNG
  • Publication number: 20160099299
    Abstract: An organic light emitting display device includes a substrate comprising a major surface; a display region and a peripheral region surrounding the display region when viewed in a viewing direction perpendicular to the major surface; an array of a plurality of pixels disposed in the display region; and a first power line extending from the peripheral region into the display region, the first power line being electrically connected to the array of pixels at a contact point in the display region. When viewed in the viewing direction, the first power line includes: a first extension extending from the peripheral region to the display region; and a second extension connected to the first extension; and a third extension connected to the second extension and extending from a location in the display region toward the peripheral region.
    Type: Application
    Filed: February 20, 2015
    Publication date: April 7, 2016
    Inventors: Kyung Hoon CHUNG, Chul-Kyu Kang, Jung-Mi Choi