Patents by Inventor Yeong Keun Kwon

Yeong Keun 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: 11158656
    Abstract: A display substrate includes a switching element disposed in a display region that is electrically connected to a gate line, a data line, and a first electrode in a peripheral region adjacent to the display region that includes a first conductive pattern formed from a first conductive layer that includes a same material as the gate line, a first line connecting part disposed in the peripheral region that includes the first conductive pattern, a second conductive pattern that overlaps the first conductive pattern and formed, an organic layer that partially exposes the second conductive pattern, and a third conductive pattern electrically connected to the second conductive pattern that contacts the partially exposed second conductive pattern, and a fourth conductive pattern that electrically connects the first conductive pattern of the pad part and the third conductive pattern of the first line connecting part.
    Type: Grant
    Filed: September 12, 2019
    Date of Patent: October 26, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ji-Sun Kim, Ji-Hyun Kim, Shin-Il Choi, Yeong-Keun Kwon
  • Publication number: 20200006399
    Abstract: A display substrate includes a switching element disposed in a display region that is electrically connected to a gate line, a data line, and a first electrode in a peripheral region adjacent to the display region that includes a first conductive pattern formed from a first conductive layer that includes a same material as the gate line, a first line connecting part disposed in the peripheral region that includes the first conductive pattern, a second conductive pattern that overlaps the first conductive pattern and formed, an organic layer that partially exposes the second conductive pattern, and a third conductive pattern electrically connected to the second conductive pattern that contacts the partially exposed second conductive pattern, and a fourth conductive pattern that electrically connects the first conductive pattern of the pad part and the third conductive pattern of the first line connecting part.
    Type: Application
    Filed: September 12, 2019
    Publication date: January 2, 2020
    Inventors: JI-SUN KIM, JI-HYUN KIM, SHIN-IL CHOI, YEONG-KEUN KWON
  • Patent number: 10446587
    Abstract: A display substrate includes a switching element disposed in a display region that is electrically connected to a gate line, a data line, and a first electrode in a peripheral region adjacent to the display region that includes a first conductive pattern formed from a first conductive layer that includes a same material as the gate line, a first line connecting part disposed in the peripheral region that includes the first conductive pattern, a second conductive pattern that overlaps the first conductive pattern and formed, an organic layer that partially exposes the second conductive pattern, and a third conductive pattern electrically connected to the second conductive pattern that contacts the partially exposed second conductive pattern, and a fourth conductive pattern that electrically connects the first conductive pattern of the pad part and the third conductive pattern of the first line connecting part.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: October 15, 2019
    Assignee: SAMSUNGG DISPLAY CO., LTD.
    Inventors: Ji-Sun Kim, Ji-Hyun Kim, Shin-Il Choi, Yeong-Keun Kwon
  • Patent number: 9865218
    Abstract: A display device includes pixels arranged in a matrix form, gate lines extending in a first direction; data lines extending in a second direction, first and second unit pixel columns, each defined by adjacent data lines and the pixels connected thereto, first and second channels which transmit data signals to each of the first and second unit pixel columns, and a line selector which connects the first and second channels to the data lines and provides data voltages to the data lines in response to control signals, where a pixel connected to a first gate line is connected to a data line at a side thereof, a pixel connected to a second gate line is connected to a data line at the other side thereof, and each of the first and second channels is connected to a data line of each of the first and second unit pixel columns.
    Type: Grant
    Filed: March 9, 2015
    Date of Patent: January 9, 2018
    Assignee: SAMSUNG DISPLAY CO. LTD.
    Inventors: Ji Sun Kim, Won Sik Oh, Yeong Keun Kwon, Young Wan Seo, Young Soo Yoon, Chong Chul Chai
  • Patent number: 9865216
    Abstract: A display device includes a display area including a gate line and a data line and a gate driver connected to an end of the gate line, the gate driver including at least one stages integrated on a substrate configured to output a gate voltage, in which the stage includes an inverter unit and an output unit, in which the output unit includes a first transistor and a first capacitor. The first transistor includes an input terminal applied with a clock signal, a control terminal connected to the node Q, and an output terminal connected to a gate voltage output terminal through which the gate voltage is output. An inverter voltage output from the inverter is lower than the low voltage of the gate voltage output by the output unit.
    Type: Grant
    Filed: December 5, 2016
    Date of Patent: January 9, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Soo-Wan Yoon, Yeong-Keun Kwon, Ji-Sun Kim, Jong Hee Kim, Young Wan Seo, Jae Keun Lim
  • Patent number: 9830856
    Abstract: A stage circuit includes a first driver, a second driver, a first output unit, a second output unit and a controller. The first driver controls voltages of first and second nodes, according to a first power source, a third power source, a start signal or a carry signal of a previous stage input to a first input terminal, and a clock signal supplied to a second input terminal. The second driver controls voltages of third and fourth nodes, according to voltages of the first power source, the third power source, the first input terminal and the first and second nodes. The first output unit outputs a carry signal to a first output terminal, according to voltages of the first power source, the second input terminal and the third and fourth nodes. The second output unit outputs a scan signal to a second output terminal, according to voltages of the second power source, the second input terminal and the third and fourth nodes. The controller is electrically coupled to the first output terminal and the second driver.
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: November 28, 2017
    Assignees: Samsung Display Co., Ltd., Industry-University Cooperation Foundation Hanyang-University
    Inventors: Oh-Kyong Kwon, Yeong-Keun Kwon, Jong-Hee Kim, Ji-Sun Kim, Jae-Keun Lim, Chong-Chul Chai
  • Publication number: 20170250203
    Abstract: A display substrate includes a switching element disposed in a display region that is electrically connected to a gate line, a data line, and a first electrode in a peripheral region adjacent to the display region that includes a first conductive pattern formed from a first conductive layer that includes a same material as the gate line, a first line connecting part disposed in the peripheral region that includes the first conductive pattern, a second conductive pattern that overlaps the first conductive pattern and formed, an organic layer that partially exposes the second conductive pattern, and a third conductive pattern electrically connected to the second conductive pattern that contacts the partially exposed second conductive pattern, and a fourth conductive pattern that electrically connects the first conductive pattern of the pad part and the third conductive pattern of the first line connecting part.
    Type: Application
    Filed: May 12, 2017
    Publication date: August 31, 2017
    Inventors: JI-SUN KIM, JI-HYUN KIM, SHIN-IL CHOI, YEONG-KEUN KWON
  • Patent number: 9666613
    Abstract: A display substrate includes a switching element disposed in a display region that is electrically connected to a gate line, a data line, and a first electrode in a peripheral region adjacent to the display region that includes a first conductive pattern formed from a first conductive layer that includes a same material as the gate line, a first line connecting part disposed in the peripheral region that includes the first conductive pattern, a second conductive pattern that overlaps the first conductive pattern and formed, an organic layer that partially exposes the second conductive pattern, and a third conductive pattern electrically connected to the second conductive pattern that contacts the partially exposed second conductive pattern, and a fourth conductive pattern that electrically connects the first conductive pattern of the pad part and the third conductive pattern of the first line connecting part.
    Type: Grant
    Filed: April 8, 2014
    Date of Patent: May 30, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ji-Sun Kim, Ji-Hyun Kim, Shin-Il Choi, Yeong-Keun Kwon
  • Publication number: 20170084241
    Abstract: A display device includes a display area including a gate line and a data line and a gate driver connected to an end of the gate line, the gate driver including at least one stages integrated on a substrate configured to output a gate voltage, in which the stage includes an inverter unit and an output unit, in which the output unit includes a first transistor and a first capacitor. The first transistor includes an input terminal applied with a clock signal, a control terminal connected to the node Q, and an output terminal connected to a gate voltage output terminal through which the gate voltage is output. An inverter voltage output from the inverter is lower than the low voltage of the gate voltage output by the output unit.
    Type: Application
    Filed: December 5, 2016
    Publication date: March 23, 2017
    Inventors: SOO-WAN YOON, YEONG-KEUN KWON, JI-SUN KIM, JONG HEE KIM, YOUNG WAN SEO, JAE KEUN LIM
  • Publication number: 20170061874
    Abstract: A stage circuit includes a first driver, a second driver, a first output unit, a second output unit and a controller. The first driver controls voltages of first and second nodes, according to a first power source, a third power source, a start signal or a carry signal of a previous stage input to a first input terminal, and a clock signal supplied to a second input terminal. The second driver controls voltages of third and fourth nodes, according to voltages of the first power source, the third power source, the first input terminal and the first and second nodes. The first output unit outputs a carry signal to a first output terminal, according to voltages of the first power source, the second input terminal and the third and fourth nodes. The second output unit outputs a scan signal to a second output terminal, according to voltages of the second power source, the second input terminal and the third and fourth nodes. The controller is electrically coupled to the first output terminal and the second driver.
    Type: Application
    Filed: November 14, 2016
    Publication date: March 2, 2017
    Inventors: Oh-Kyong Kwon, Yeong-Keun Kwon, Jong-Hee Kim, Ji-Sun Kim, Jae-Keun Lim, Chong-Chul Chai
  • Patent number: 9524674
    Abstract: A stage circuit includes a first driver, a second driver, a first output unit, a second output unit and a controller. The first driver controls voltages of first and second nodes, according to a first power source, a third power source, a start signal or a carry signal of a previous stage input to a first input terminal, and a clock signal supplied to a second input terminal. The second driver controls voltages of third and fourth nodes, according to voltages of the first power source, the third power source, the first input terminal and the first and second nodes. The first output unit outputs a carry signal to a first output terminal, according to voltages of the first power source, the second input terminal and the third and fourth nodes. The second output unit outputs a scan signal to a second output terminal, according to voltages of the second power source, the second input terminal and the third and fourth nodes. The controller is electrically coupled to the first output terminal and the second driver.
    Type: Grant
    Filed: August 11, 2014
    Date of Patent: December 20, 2016
    Assignees: Samsung Display Co., Ltd., Industry-University Cooperation Foundation Hanyang-University
    Inventors: Oh-Kyong Kwon, Yeong-Keun Kwon, Jong-Hee Kim, Ji-Sun Kim, Jae-Keun Lim, Chong-Chul Chai
  • Patent number: 9514704
    Abstract: A display device includes a display area including a gate line and a data line and a gate driver connected to an end of the gate line, the gate driver including at least one stages integrated on a substrate configured to output a gate voltage, in which the stage includes an inverter unit and an output unit, in which the output unit includes a first transistor and a first capacitor. The first transistor includes an input terminal applied with a clock signal, a control terminal connected to the node Q, and an output terminal connected to a gate voltage output terminal through which the gate voltage is output. An inverter voltage output from the inverter is lower than the low voltage of the gate voltage output by the output unit.
    Type: Grant
    Filed: July 21, 2015
    Date of Patent: December 6, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Soo-Wan Yoon, Yeong-Keun Kwon, Ji-Sun Kim, Jong Hee Kim, Young Wan Seo, Jae Keun Lim
  • Patent number: 9501959
    Abstract: A mother substrate includes a display substrate cell defined by a scribe line, the display substrate cell including a plurality of gate lines, a gate circuit part driving the gate lines, and a gate pad part connected to the gate circuit part, a gate test pad part in a peripheral area surrounding the display substrate cell, the gate test pad part being configured to receive a gate test signal, a gate test line part connecting the gate test pad part and the gate pad part, and a switching part connected to the gate test line part and configured to control turning on and turning off of the gate test line part.
    Type: Grant
    Filed: July 1, 2014
    Date of Patent: November 22, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ji-Sun Kim, Chong-Chul Chai, Yeong-Keun Kwon
  • Patent number: 9500898
    Abstract: A liquid crystal display according to an embodiment of the present invention includes: a first substrate; a plurality of color filters formed on the first substrate and arranged in a matrix with an island shape; a plurality of pixel electrodes formed on the color filters; and a capacitor disposed between neighboring color filters in a column direction among the color filters, wherein two terminals forming the capacitor are disposed at a portion outside a position overlapping the color filters.
    Type: Grant
    Filed: June 20, 2013
    Date of Patent: November 22, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yoon-Jang Kim, Dong-Gyu Kim, Eun Cho, Yeong-Keun Kwon, Kee-Bum Park
  • Patent number: 9479156
    Abstract: A gate driver, including multiple stages of gate driving circuits, wherein each stage of the gate driving circuits includes an input part configured to generate a Q node signal in response to a carry signal of one of previous stages and a clock signal, the Q node signal being applied to Q node, an output part configured to output a gate output signal to a gate output terminal in response to the Q node signal, and a charge sharing part connected to the gate output terminal of a present stage and a gate output terminal of one of next stages, the charge sharing part configured to operate charge-sharing between the gate output signal of the present stage and a gate output signal of one of the next stages in response to a select signal.
    Type: Grant
    Filed: June 23, 2014
    Date of Patent: October 25, 2016
    Assignees: Samsung Display Co., Ltd., Industry-University Cooperation Foundation Hanyang University
    Inventors: Oh-Kyong Kwon, Yeong-Keun Kwon, Jong-Hee Kim, Ji-Sun Kim, Jae-Keun Lim, Chong-Chul Chai
  • Patent number: 9470945
    Abstract: A liquid crystal display panel with enhanced image quality is disclosed. The liquid crystal display panel has a plurality of gate lines, a plurality of data lines, a plurality of thin film transistors connected to gate line and data line, a plurality of pixel electrodes, and floating electrode(s). The floating electrode extends along the data line to prevent light leakage and vertical crosstalk. Throughout the whole liquid crystal display panel, the floating electrode is electrically interconnected to lessen vertical crosstalk.
    Type: Grant
    Filed: August 24, 2015
    Date of Patent: October 18, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jong-Woong Chang, Yeong-Keun Kwon
  • Patent number: 9395592
    Abstract: A display device includes pixels, gate lines, and data lines on a substrate. The pixels include sub-pixels, and each sub-pixel includes a respective one of a plurality of first electrodes connected to one of the gate lines and one of the data lines. The first electrode of the sub-pixel at an n-th row and the first electrode of the sub-pixel at an (n+2)-th row in a same column are connected to different ones of the data lines. The sub-pixels in the n-th and (n+2)-th rows in the same column emit the same color of light.
    Type: Grant
    Filed: August 1, 2014
    Date of Patent: July 19, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Young Wan Seo, Yeong-Keun Kwon, Ji-Sun Kim
  • Patent number: 9294086
    Abstract: A stage circuit includes a first driver, a second driver, a first output unit and a second output unit. The first driver controls voltages of first and second nodes, according to a first power source, a start signal or a carry signal of a previous stage supplied to a first input terminal, a first clock signal supplied to a second input terminal, and a second clock signal supplied to a third input terminal. The second driver controls a voltage of a third node, according to the first power source, a start signal or a carry signal of a previous stage supplied to a first input terminal, a carry signal of a next stage supplied to a fourth input terminal, and the voltage of the second node.
    Type: Grant
    Filed: August 11, 2014
    Date of Patent: March 22, 2016
    Assignees: Samsung Display Co., Ltd., Industry-University Cooperation Foundation Hanyang-University
    Inventors: Oh-Kyong Kwon, Yeong-Keun Kwon, Jong-Hee Kim, Ji-Sun Kim, Jae-Keun Lim, Chong-Chul Chai
  • Patent number: 9293097
    Abstract: A display apparatus includes gate lines, data lines insulated from the gate lines while crossing the gate lines, and pixels each including sub-pixels in two successive rows by three successive columns. Among the sub-pixels in the two rows by the three columns, the sub-pixels in one of the three columns are respectively connected to a pair of different gate lines among three gate lines, and the sub-pixels in a different one of the three columns are connected to a remaining gate line among the three gate lines. The sub-pixels in the one and the different one of the three columns includes the same color filter and are applied with a gate signal transmitted in the same direction along pixel rows.
    Type: Grant
    Filed: March 14, 2012
    Date of Patent: March 22, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ji-Sun Kim, Yeong-Keun Kwon, Soo-Wan Yoon, Young-Soo Yoon, Jaehoon Lee, Chongchul Chai
  • Patent number: 9293093
    Abstract: A gate driver circuit includes an N-th stage (‘N’ is a natural number) The N-th stage (‘N’ is a natural number) includes a pull-up part configured to output an N-th gate signal using a first clock signal in response to a node signal of the control node, a carry part configured to output an N-th carry signal using the first clock signal in response to the node signal of the control node, an first output part connected to an n-th gate line and configured to output an n-th gate signal using the N-th gate signal in response to a second clock signal having a period shorter than the first clock signal (‘n’ is a natural number), and a second output part connected to an (n+1)-th gate line and configured to output an (n+1)-th gate signal using the N-th gate signal in response to an second inversion clock signal having a phase opposite to the second clock signal.
    Type: Grant
    Filed: March 31, 2014
    Date of Patent: March 22, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jong-Hee Kim, Yeong-Keun Kwon, Ji-Sun Kim, Jae-Keun Lim, Chong-Chul Chai