Patents by Inventor Ho-Kyoon Kwon

Ho-Kyoon Kwon 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: 9368084
    Abstract: In the display apparatus, a gate driver receives at least one clock to sequentially provide gate lines in a display panel with a gate signal in a high state corresponding to a high interval of the clock. The gate driver includes a plurality of amorphous silicon transistors and is formed in the display panel through a thin film process. The clock has a delay time of about 2.0 ?s or less. If the delay time of the clock is reduced less than about 2.0 ?s, a threshold voltage margin of the transistors increases, so that the gate driver may not malfunction in a high temperature aging process. As a result, the gate driver may be prevented from malfunctioning in the high temperature aging process.
    Type: Grant
    Filed: January 9, 2009
    Date of Patent: June 14, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ji-Hyun Kwon, Ho-Kyoon Kwon, Dong-Hyon Ki, Won-Hee Lee
  • Patent number: 9349336
    Abstract: A display device includes a plurality of pixels arranged in a column direction and in a row direction, as well as a data line connected to a pixel of a k-th column (where ‘k’ is a natural number) and a (k+1)-th column in an odd-numbered row of the pixels, and connected to a pixel of a (k?1)-th column and a (k+2)-th column in an even-numbered row of the pixels. A data driving part is configured to apply a data signal to the data lines.
    Type: Grant
    Filed: April 9, 2014
    Date of Patent: May 24, 2016
    Assignee: Samsung Display Co., LTD.
    Inventors: Ho-Kyoon Kwon, Dae-Ho Song, Kee-Byem Kim, Yun-Soo Kim
  • Publication number: 20160139473
    Abstract: A method to repair a data line in a thin film transistor array panel includes, if the data line is disconnected at a disconnection portion, irradiating a laser on at least one side of the disconnected portion of the data line to short the data line and a storage electrode, and irradiating the laser to separate a portion shorted to the data line among the storage electrode to be disconnected. The storage electrode includes a first portion overlapping the data line between two adjacent gate lines and a second portion connected to the first portion and enclosing an edge of a pixel area except for a region where the first portion is formed. Two adjacent pixel areas are defined by the two adjacent gate lines and two adjacent data lines, and the storage electrode is branched between pixel electrodes.
    Type: Application
    Filed: January 22, 2016
    Publication date: May 19, 2016
    Inventors: Jong-Woong CHANG, Ho-Kyoon KWON, Shin-Tack KANG
  • Patent number: 9343028
    Abstract: A method of driving a gate line includes: charging one of a scan start signal and a carry signal provided from a previous stage to a first node of a present stage; outputting a gate signal through a gate node of the present stage by pulling up a high level of a first clock signal at the first node to boost up a voltage potential of the first node; discharging the voltage potential of the first node and a voltage potential of the gate node to hold the first node and the gate node at a first power voltage as the first clock signal is shifted to a low level; and receiving a voltage potential signal of a second node of the previous stage, the second node holding a gate signal outputted from the previous stage, to reduce a ripple generated at the first node.
    Type: Grant
    Filed: April 15, 2009
    Date of Patent: May 17, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dong-Hyeon Ki, Ho-Kyoon Kwon, Ju-Hee Lee, Byoung-Sun Na
  • Publication number: 20160133214
    Abstract: A display apparatus includes a plurality of pixels arranged in columns and rows in a display area, a data line extending in a first direction and connected with pixels of a k-th column (‘k’ is a natural number) and a (k+1)-th column, a gate line extending in a second direction crossing the first direction and connected with ones of the pixels, a gate signal line extending in the first direction and connected with the gate line, and a gate driver in a first peripheral area adjacent to a first longer side of the display area and having a first width, and configured to apply a gate signal to the gate line.
    Type: Application
    Filed: May 1, 2015
    Publication date: May 12, 2016
    Inventors: Ho-Kyoon Kwon, Myoung-Soo Kim, Sang-Ik Lee, Kyoung-Ho Lim, Kwang-Chul Jung, Jun-Ki Jeong, Ki-Seok Cha, Joon-Chul Goh, Bong-Hyun You
  • Patent number: 9274393
    Abstract: The present invention relates to a thin film transistor array panel, a liquid crystal display, and a method capable of reducing an effect on neighboring pixels in a process of repairing a pixel defect. The thin film transistor array panel may include: a thin film transistor connected to a gate line and a data line to define a pixel area; a pixel electrode formed in the pixel area and connected to the thin film transistor; and a storage electrode including a first portion overlapping the data line between two adjacent gate lines. The storage electrode may also include a second portion connected to the first portion and enclosing an edge of the pixel area except for a region where the first portion is formed. The storage electrode may be branched between pixel electrodes respectively formed in two adjacent pixel areas.
    Type: Grant
    Filed: August 16, 2013
    Date of Patent: March 1, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jong-Woong Chang, Ho-Kyoon Kwon, Shin-Tack Kang
  • Patent number: 9164613
    Abstract: A touch display substrate includes a first data line, a first gate line, a first pixel electrode, a second gate line, a second pixel electrode, a sensor data line and a first sensor electrode. The first data line extends along a first direction. The first gate line extends along a second direction. The first pixel electrode is electrically connected to the first data line and the first gate line. The second gate line is substantially parallel with the first gate line. The second pixel electrode is adjacent to the first pixel electrode and electrically connected to the first data line and the second gate line. The sensor data line is adjacent to the second pixel electrode and substantially parallel to the first data line. The first sensor electrode is electrically connected to the sensor data line.
    Type: Grant
    Filed: November 18, 2011
    Date of Patent: October 20, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sang-Jin Jeon, Ho-Kyoon Kwon
  • Patent number: 9153190
    Abstract: A gate driver that comprises n shift registers, wherein n is an integer equal to or larger than 1, each of the n shift registers includes; a start stage which outputs a gate signal and starts its operation in response to a start signal, and a plurality of subsequent stages which are connected to each other in sequence, and which sequentially output a plurality of gate signals in response to a signal output from the start stage, wherein at least one stage of the plurality of subsequent stages is reset by the start signal.
    Type: Grant
    Filed: December 12, 2008
    Date of Patent: October 6, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Soon-Il Ahn, Ho-Kyoon Kwon, Byoung-Sun Na, Dong-Hyon Ki, Seung-Soo Baek, Hye-Seok Na
  • Patent number: 9153599
    Abstract: A thin film transistor array panel includes a gate line and the driver connection line formed with the same layer material, a data line and a driving pad formed with the same layer material, a first field generating electrode and a connecting member formed with the same layer material, and a second field generating electrode and a dummy electrode layer formed with the same layer material.
    Type: Grant
    Filed: July 2, 2014
    Date of Patent: October 6, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Bon-Yong Koo, Jeong Min Park, Ho-Kyoon Kwon, Yun Hee Kwak
  • Publication number: 20150177548
    Abstract: A liquid crystal display includes: a bottom chassis, a backlight assembly received in the bottom chassis, a liquid crystal display panel including a thin film transistor substrate and a counter substrate disposed opposite the thin film transistor substrate, with the liquid crystal display panel being disposed so that the counter substrate faces the backlight assembly. The liquid crystal display further includes a mold structure disposed between the bottom chassis and the liquid crystal display panel, and configured to fasten the liquid crystal display panel to the bottom chassis, a driving connection line connected to the thin film transistor substrate and a shield case configured to cover the driving connection line to protect the driving connection line, and including a lateral side disposed corresponding to an edge of the liquid crystal display panel or disposed inside the edge of the liquid crystal panel.
    Type: Application
    Filed: April 29, 2014
    Publication date: June 25, 2015
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: JAE-HWAN JEON, KEE BYEM KIM, SANG HWAN LEE, JAE HUN CHUNG, KI SEOK CHA, HO KYOON KWON, YUN SOO KIM, DAE HO SONG, YOUNG DAE SONG, SANG A AN
  • Patent number: 9024858
    Abstract: The present invention divides a wire supplying a scan start signal to a gate driver into two wires, so as to avoid overlapping a clock signal line. In this way the clock signal is not delayed by interference, and a gate driving margin may continue uninterrupted, thereby uniformly outputting a gate-on voltage. In particular, if the clock signal line is connected to all stages in the gate driver and the clock signal line overlaps the scan start signal line, unsightly horizontal bands appear on the image and the parallel gate lines generate a very large parasitic capacitance. In contrast, the gate drivers in the present disclosure comprise clock signal lines which do not overlap the scan start signal lines. As benefits, interference resulting in horizontal banding is minimized and the power consumption may be reduced by about 10%.
    Type: Grant
    Filed: April 9, 2012
    Date of Patent: May 5, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Bon-Yong Koo, Beom Jun Kim, Ho Kyoon Kwon
  • Publication number: 20150097802
    Abstract: A display device includes a display panel, a signal controller, sensing signal lines, and a touch sensor controller. The display panel includes pixels configured to display images, and touch sensor electrodes configured to sense a touch event. The touch sensor electrodes overlap a conductive layer. The signal controller is configured to generate signals to control the display of the images via the display panel. The sensing signal lines are respectively connected to the touch sensor electrodes. The touch sensor controller is configured to transmit a sensing input signal via the sensing signal lines, receive a sensing output signal via the sensing signal lines, and generate touch information based on reception of the sensing output signal. The touch sensor controller is configured to apply the same signal to the touch sensor electrodes and the conductive layer.
    Type: Application
    Filed: March 21, 2014
    Publication date: April 9, 2015
    Applicant: Samsung Display Co., Ltd.
    Inventors: Chul KIM, Ho Kyoon KWON, Jin Woo PARK, Dae Ho SONG, Ki-Seok CHA
  • Publication number: 20150029080
    Abstract: A display device includes a plurality of pixels arranged in a column direction and in a row direction, as well as a data line connected to a pixel of a k-th column (where ‘k’ is a natural number) and a (k+1)-th column in an odd-numbered row of the pixels, and connected to a pixel of a (k?1)-th column and a (k+2)-th column in an even-numbered row of the pixels. A data driving part is configured to apply a data signal to the data lines.
    Type: Application
    Filed: April 9, 2014
    Publication date: January 29, 2015
    Applicant: Samsung Display Co., LTD.
    Inventors: Ho-Kyoon KWON, Dae-Ho SONG, Kee-Byem KIM, Yun-Soo KIM
  • Publication number: 20150009443
    Abstract: A liquid crystal display includes: an insulating substrate; gate lines and data lines disposed on the insulating substrate; pixels disposed on the substrate substantially in a matrix form, each pixel including a thin film transistor connected to a corresponding gate line of the gate lines and a corresponding data line of the data lines, a first electrode disposed on the thin film transistor, and a second electrode disposed on the first electrode; a first insulating layer disposed on the gate lines, the data lines and the thin film transistor, and under the first electrode; and a second insulating layer disposed between the first electrode and the second electrode, in which each of the first insulating layer and the second insulating layer include an inorganic insulating layer, and a thickness of the first insulating layer is greater than a thickness of the second insulating layer.
    Type: Application
    Filed: July 1, 2014
    Publication date: January 8, 2015
    Inventors: Dae Ho SONG, Ho Kyoon KWON, Yu-Han BAE, Kee Byem KIM, Yun Soo KIM, Jae Hun CHUNG
  • Publication number: 20140312353
    Abstract: A thin film transistor array panel includes a gate line and the driver connection line formed with the same layer material, a data line and a driving pad formed with the same layer material, a first field generating electrode and a connecting member formed with the same layer material, and a second field generating electrode and a dummy electrode layer formed with the same layer material.
    Type: Application
    Filed: July 2, 2014
    Publication date: October 23, 2014
    Inventors: Bon-Yong KOO, Jeong Min Park, Ho-Kyoon Kwon, Yun Hee Kwak
  • Patent number: 8835927
    Abstract: A display substrate includes a gate line extended in one direction of a base substrate, a first data line extended in a direction crossing the gate line, a transverse storage line extended in the extending direction of the gate line and crossing the first data line, a longitudinal storage line extended in the extending direction of the first data line and crossing the transverse storage line, a portion of an overlapping area between the longitudinal storage line and the transverse storage line is exposed in a contact part region having an opening partially exposing the transverse storage line. A contact electrode covers the contact part opening and makes electrical contact with each of the transverse storage line and the longitudinal storage line.
    Type: Grant
    Filed: November 14, 2012
    Date of Patent: September 16, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jong-Woong Chang, Ho-Kyoon Kwon, Kee-Byem Kim, Yun-Soo Kim, Dae-Ho Song
  • Patent number: 8796689
    Abstract: A thin film transistor array panel includes a gate line and the driver connection line formed with the same layer material, a data line and a driving pad formed with the same layer material, a first field generating electrode and a connecting member formed with the same layer material, and a second field generating electrode and a dummy electrode layer formed with the same layer material.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: August 5, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Bon-Yong Koo, Jeong Min Park, Ho Kyoon Kwon, Yun Hee Kwak
  • Patent number: 8791472
    Abstract: A substrate includes a storage line, first and second gate lines and first and second pixel electrodes. The storage line extends along a first direction on the substrate. The first and second gate lines are substantially parallel with the storage line. The first pixel electrode is formed between the first gate line and the storage line. The second pixel electrode is formed between the second gate line and the storage line.
    Type: Grant
    Filed: January 5, 2012
    Date of Patent: July 29, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sun-Kyu Joo, Ho-Kyoon Kwon, Sung-Man Kim
  • Publication number: 20130335667
    Abstract: The present invention relates to a thin film transistor array panel, a liquid crystal display, and a method capable of reducing an effect on neighboring pixels in a process of repairing a pixel defect. The thin film transistor array panel may include: a thin film transistor connected to a gate line and a data line to define a pixel area; a pixel electrode formed in the pixel area and connected to the thin film transistor; and a storage electrode including a first portion overlapping the data line between two adjacent gate lines. The storage electrode may also include a second portion connected to the first portion and enclosing an edge of the pixel area except for a region where the first portion is formed. The storage electrode may be branched between pixel electrodes respectively formed in two adjacent pixel areas.
    Type: Application
    Filed: August 16, 2013
    Publication date: December 19, 2013
    Applicant: Samsung Display Co., Ltd.
    Inventors: Jong-Woong CHANG, Ho-Kyoon KWON, Shin-Tack KANG
  • Publication number: 20130335365
    Abstract: A display device include a first surface, a sensing capacitor having a sensing input electrode and a sensing output electrode, wherein the sensing capacitor stores a first amount of charges and the sensing capacitor stored a second amount of charges when an external object contacts on the first surface, a sensing input signal line electrically connected with the sensing input electrode and receiving a sensing input signal to charge the sensing capacitor to the first amount of charges, a sensing output signal line electrically connected with the sensing output electrode, and a sensing signal processor connected with the sensing output signal line, wherein the sensing signal processor determines whether an external objects contact on the first surface based on a voltage difference between the first amount of charges and the second amount of charges stored in the sensing capacitor.
    Type: Application
    Filed: October 15, 2012
    Publication date: December 19, 2013
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Chul Kim, Ho Kyoon Kwon, Ki Seok Cha, Seok-Hyun Jung, Ho Jin Byun, Dae ho Song