Patents by Inventor Ki Min SON

Ki Min SON 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: 20230008896
    Abstract: An inverter circuit, a gate driver using the same, and a display device according to an embodiment are discussed. The inverter circuit can include a first transistor connected between a high potential voltage line and a first node; a second transistor having a gate connected to the first node and turned on according to a voltage of the first node to charge a second control node to a high potential voltage of the high potential voltage line; a third transistor having a gate connected to a first control node, a first electrode connected to the first node, and a second electrode connected to the second control node; and a fourth transistor having a gate connected to the first control node, a first electrode connected to the second control node, and a second electrode connected to a low potential voltage line.
    Type: Application
    Filed: July 7, 2022
    Publication date: January 12, 2023
    Applicant: LG Display Co., Ltd.
    Inventors: Seok NOH, Ki Min SON
  • Publication number: 20230010366
    Abstract: The present disclosure is directed to a gate driver circuit configured to prevent a light-emitting element of a display device from emitting light in a sensing mode. The gate driver circuit allows a plurality of scan lines of the display device being concurrently sensed by pre-charging a node of the gate driver circuit prior starting a sensing mode. The present disclosure provides the benefit of sensing a greater number of pixels of a display in a shorter time while also ensuring that a sufficient charge is provided by the pre-charged node for a plurality of pixels of the plurality of scan lines to be sensed concurrently.
    Type: Application
    Filed: July 8, 2022
    Publication date: January 12, 2023
    Inventors: Ki Won Son, Ki Min Son, Seok Noh
  • Publication number: 20230010792
    Abstract: Provided are a gate driving circuit and a display device including the same. The gate driving circuit includes a first controller configured to control a first control node to act as a pull-up control node to turn on a first transistor when an activation clock is input to the first controller for a first unit time, and to be deactivated when a deactivation clock is input thereto for a second unit time; and a second controller configured to control a second control node to act as a pull-up control node to turn on a second transistor when the activation clock is input to the second controller for the second unit time, and to be deactivated when the deactivation clock is input thereto for the first unit time.
    Type: Application
    Filed: June 23, 2022
    Publication date: January 12, 2023
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Seung Ho HEO, Dong Hyun LEE, Seok NOH, Ki Min SON, Hun Ki SHIN
  • Publication number: 20230009113
    Abstract: A pixel circuit of a display device includes a driving element comprising a first electrode connected to a first node to which a pixel driving voltage is applied, a first gate electrode connected to a second node, a second electrode connected to a third node, and a second gate electrode connected to a fourth node, and configured to supply an electric current to a light-emitting element; a first switch element configured to be turned on according to a gate-on voltage and supply a data voltage to the second node; a first capacitor connected between the second node and the third node; a second capacitor connected between the third node and the fourth node; and a third capacitor connected between the fourth node and the first node, or between the fourth node and a power line to which the pixel driving voltage is applied.
    Type: Application
    Filed: June 29, 2022
    Publication date: January 12, 2023
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Ki Min SON, Chang Hee KIM
  • Patent number: 11282428
    Abstract: The display panel includes an active region including data lines, gate lines crossing the data lines, and pixels arranged in a matrix, and a shift register arranged distributively in the active region and configured to supply a gate pulse to the gate lines.
    Type: Grant
    Filed: September 4, 2020
    Date of Patent: March 22, 2022
    Inventors: In-Hyo Han, Ki-Min Son, Kil-Hwan Oh, Hae-Jin Park, Kyung-Min Kim
  • Patent number: 10957755
    Abstract: A display panel and an OLED display device using the same are disclosed. The display panel includes an active region including data lines, gate lines crossing the data lines, and pixels arranged in a matrix, and a shift register arranged distributively in the active region and configured to supply a gate pulse to the gate lines.
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: March 23, 2021
    Assignee: LG Display Co., Ltd.
    Inventors: In-Hyo Han, Ki-Min Son, Kil-Hwan Oh, Hae-Jin Park, Kyung-Min Kim
  • Publication number: 20200403051
    Abstract: A display panel and an OLED display device using the same are disclosed. The display panel includes an active region including data lines, gate lines crossing the data lines, and pixels arranged in a matrix, and a shift register arranged distributively in the active region and configured to supply a gate pulse to the gate lines.
    Type: Application
    Filed: September 4, 2020
    Publication date: December 24, 2020
    Inventors: In-Hyo HAN, Ki-Min SON, Kil-Hwan OH, Hae-Jin PARK, Kyung-Min KIM
  • Patent number: 10783820
    Abstract: Disclosed herein are a gate driver capable of implementing a narrow bezel by deleting dummy gate-in-panels (GIPs) and a flat panel display device including the same. The gate driver includes gate-in-panels (GIPs) equal in number to a plurality of gate lines in order to sequentially supply scan pulses to the plurality of gate lines. A k-th GIP is enabled by a carry pulse from a GIP of a (k?a)-th stage and is disabled by a carry pulse output from a GIP of a (k+b)-th stage (a and b are natural numbers), first a GIPs are enabled by a gate start signal output from a timing controller, and last b GIPs are disabled by a reset signal output from the timing controller.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: September 22, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: Seok Noh, Hae-Jin Park, Ki-Min Son
  • Publication number: 20190103049
    Abstract: Disclosed herein are a gate driver capable of implementing a narrow bezel by deleting dummy gate-in-panels (GIPs) and a flat panel display device including the same. The gate driver includes gate-in-panels (GIPs) equal in number to a plurality of gate lines in order to sequentially supply scan pulses to the plurality of gate lines. A k-th GIP is enabled by a carry pulse from a GIP of a (k?a)-th stage and is disabled by a carry pulse output from a GIP of a (k+b)-th stage (a and b are natural numbers), first a GIPs are enabled by a gate start signal output from a timing controller, and last b GIPs are disabled by a reset signal output from the timing controller.
    Type: Application
    Filed: September 20, 2018
    Publication date: April 4, 2019
    Inventors: Seok NOH, Hae-Jin PARK, Ki-Min SON
  • Publication number: 20180138256
    Abstract: A display panel and an OLED display device using the same are disclosed. The display panel includes an active region including data lines, gate lines crossing the data lines, and pixels arranged in a matrix, and a shift register arranged distributively in the active region and configured to supply a gate pulse to the gate lines.
    Type: Application
    Filed: November 10, 2017
    Publication date: May 17, 2018
    Inventors: In-Hyo HAN, Ki-Min SON, Kil-Hwan OH, Hae-Jin PARK, Kyung-Min KIM
  • Patent number: 9208745
    Abstract: Disclosed are a shift register, and a gate driving circuit including a plurality of shift registers connected in sequence to respectively supply scan signals to a plurality of gate lines of a display device. Each shift register includes: an input unit which outputs a directional input signal having a gate high or low voltage based on an output signal from a previous or subsequent shift register to a first node; an inverter unit which is connected to the first node, generates an inverting signal to a signal at the first node, and outputs the inverting signal to a second node; and an output unit which includes a pull-up unit connected to the first node and activating an output clock signal based on the signal at the first node, and a pull-down unit activating and outputting a pull-down output signal based on a signal at the second node.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: December 8, 2015
    Assignee: Hydis Technologies Co., Ltd.
    Inventors: Ki Min Son, Joon Sung An, Won Hee Lee
  • Publication number: 20140320466
    Abstract: Disclosed are a shift register that shows excellent operation reliability with elements less than those of the conventional structure and a gate driving circuit using the shift register. The gate driving circuit comprises each of a plurality of shift registers sequentially connected and respectively supplying scan signals to a plurality of gate lines of a display device.
    Type: Application
    Filed: July 7, 2014
    Publication date: October 30, 2014
    Inventor: Ki Min Son
  • Patent number: 8774346
    Abstract: Disclosed are a shift register that shows excellent operation reliability with elements less than those of the conventional structure and a gate driving circuit using the shift register. The gate driving circuit comprises each of a plurality of shift registers sequentially connected and respectively supplying scan signals to a plurality of gate lines of a display device.
    Type: Grant
    Filed: August 29, 2012
    Date of Patent: July 8, 2014
    Assignee: Hydis Technologies Co., Ltd.
    Inventor: Ki Min Son
  • Patent number: 8542178
    Abstract: A display driving circuit is provided. The display driving circuit, in which a gate driver shifting and outputting an input signal is embedded, includes an input portion receiving a pulse input signal consisting of a high-level signal and a low-level signal and transferring the pulse input signal to a boosting node, an inverter portion connected with the input portion, and inverting the pulse input signal to output the inverted signal, and a pull-up/pull-down portion consisting of a pull-up portion connected to the input portion, receiving a boosting voltage from the boosting node, and outputting a pull-up output signal, and a pull-down portion connected to the inverter portion, receiving the inverted signal, and outputting a pull-down output signal. Here, the inverter portion outputs a signal having a lower level than the low-level signal for a predetermined time period in which the pull-up output signal is output.
    Type: Grant
    Filed: June 15, 2010
    Date of Patent: September 24, 2013
    Assignee: Hydis Technologies Co., Ltd.
    Inventors: Se Jong Yoo, Ki Min Son, Joon Sung An, Seong Jun An
  • Publication number: 20130077736
    Abstract: Disclosed are a shift register that shows excellent operation reliability with elements less than those of the conventional structure and a gate driving circuit using the shift register. The gate driving circuit comprises each of a plurality of shift registers sequentially connected and respectively supplying scan signals to a plurality of gate lines of a display device.
    Type: Application
    Filed: August 29, 2012
    Publication date: March 28, 2013
    Applicant: HYDIS TECHNOLOGIES CO., LTD.
    Inventor: Ki Min Son
  • Publication number: 20110298771
    Abstract: A display driving circuit is provided. The display driving circuit, in which a gate driver shifting and outputting an input signal is embedded, includes an input portion receiving a pulse input signal consisting of a high-level signal and a low-level signal and transferring the pulse input signal to a boosting node, an inverter portion connected with the input portion, and inverting the pulse input signal to output the inverted signal, and a pull-up/pull-down portion consisting of a pull-up portion connected to the input portion, receiving a boosting voltage from the boosting node, and outputting a pull-up output signal, and a pull-down portion connected to the inverter portion, receiving the inverted signal, and outputting a pull-down output signal. Here, the inverter portion outputs a signal having a lower level than the low-level signal for a predetermined time period in which the pull-up output signal is output.
    Type: Application
    Filed: June 15, 2010
    Publication date: December 8, 2011
    Applicant: HYDIS TECHNOLOGIES CO., LTD.
    Inventors: Se Jong YOO, Ki Min SON, Joon Sung AN, Seong Jun AN