Patents by Inventor Min-Kyu Woo

Min-Kyu Woo 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: 10373564
    Abstract: A scan driver may include a first stage, a second stage, and a third stage. The first stage may include a first output transistor. The first output transistor may have a first buffer value. The second stage may be electrically connected to the first output transistor and may include a second output transistor. The second output transistor may have a second buffer value. The third stage may be electrically connected to the second output transistor and may include a third output transistor. The third output transistor may have a third buffer value. At least one of the second buffer value and the third buffer value may be unequal to the first buffer value.
    Type: Grant
    Filed: March 14, 2017
    Date of Patent: August 6, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ji-Hye Kim, Min-Kyu Woo
  • Publication number: 20190197949
    Abstract: A display device includes a first pixel region including a plurality of first pixels and a plurality of first gate control lines coupled to the first pixels, and a second pixel region spaced apart from the first pixel region. The second pixel region includes a plurality of second pixels and a plurality of second gate control lines coupled to the second pixels. The display device further includes a first non-pixel region disposed between the first pixel region and the second pixel region, and a first coupling line disposed in the first non-pixel region. The first coupling line commonly couples at least two first gate control lines and at least two second gate control lines.
    Type: Application
    Filed: October 5, 2018
    Publication date: June 27, 2019
    Inventors: Mi Hae Kim, Min Kyu Woo, Young Taeg Jung, Hyun Chol Bang, Sang Won Seok, Hwan Soo Jang, Ju Hee Hyeon
  • Patent number: 10332438
    Abstract: A display device includes: first pixels at a first pixel area and connected to first scan lines; a first scan driver to supply first scan signals to the first scan lines; second pixels at a second pixel area and connected to second scan lines; a second scan driver to supply second scan signals to the second scan lines; third pixels at a third pixel area and connected to third scan lines; and a third scan driver to supply third scan signals to the third scan lines. In a first mode, each of the first scan signals has at least a portion having a first pulse width, and each of the second scan signals has at least a portion having a second pulse width different from the first pulse width.
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: June 25, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Min Kyu Woo, Seung Kyu Lee, Jae Du Noh, Min Woo Byun, Jae Sic Lee, Seung Yeon Cho
  • Publication number: 20180284926
    Abstract: A touch sensor may include a substrate and may include electrode units, first demultiplexers, second demultiplexers, and driving pads all located on the substrate. The electrode units each may include a plurality of electrode groups, the electrode groups each including a plurality of touch electrodes. The first demultiplexers each may include a plurality of sub-demultiplexers and each may be electrically connected to a corresponding one of the electrode units. Each of the sub-demultiplexers of a first demultiplexer may be electrically connected to a corresponding one of the electrode groups of a corresponding electrode unit. The second demultiplexers may be connected between the first demultiplexers and the driving pads.
    Type: Application
    Filed: March 29, 2018
    Publication date: October 4, 2018
    Inventors: Hwa Jeong Kim, Jae Sic Lee, Na Yun Kwak, Dong Hwan Kim, Seung Woo Sung, Min Kyu Woo, Min Ku Lee, Seong Jun Lee, Sang Jin Pak, Sang Hyun Jun
  • Patent number: 10049616
    Abstract: A display device includes: a substrate comprising an active area; data lines extending in a first direction in the active area; scan lines extending in a second direction crossing the first direction in the active area; a plurality of repair lines extending in the first direction or in the second direction in the active area; and a multipath power line comprising a plurality of first wires in the active area and crossing the repair lines, and at least one second wire electrically connected to the first wires and extending in the active area to cross the first wires.
    Type: Grant
    Filed: May 18, 2016
    Date of Patent: August 14, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Myeong Hee Seo, Jun Won Choi, Min Kyu Woo
  • Publication number: 20180197482
    Abstract: A display device including a display area, first-group pixels and first-group scan lines in a first pixel area, second-group pixels and second-group scan lines in a second pixel area, third-group pixels and third-group scan lines in a third pixel area, a first scan driver to drive the first-group scan lines, a second scan driver to drive the second-group scan lines, and a third scan driver to drive the third-group scan lines, wherein the second scan driver sequentially drives the second-group scan lines during one frame period, and the first and third scan drivers alternately drive the first-group scan lines and the third-group scan lines while the second-group scan lines are driven, and wherein at least one of the first and third scan drivers repeatedly drives at least some of the first-group scan lines and the third-group scan lines two times or more during said one frame period.
    Type: Application
    Filed: January 8, 2018
    Publication date: July 12, 2018
    Inventors: Sang Moo CHOI, Min Kyu WOO, Jae Sic LEE
  • Publication number: 20180197481
    Abstract: A display device includes first pixels in a first pixel area, a first scan driver configured to supply first scan signals to first scan lines, second pixels in a second pixel area, a second scan driver configured to supply second scan signals to second scan lines, third pixels in a third pixel area, a third scan driver configured to supply third scan signals to third scan lines, and a timing controller configured to supply a first start signal to the first scan driver, a second start signal to the second scan driver, and a third start signal to the third scan driver, wherein an order in which the first, second, and third start signal are supplied in a first mode, and an order in which the first, second, and third start signal are supplied in a second mode that is different from the first mode, are different from each other.
    Type: Application
    Filed: January 8, 2018
    Publication date: July 12, 2018
    Inventors: Sang Moo CHOI, Min Woo BYUN, Chae Han HYUN, Min Kyu WOO, Jae Du NOH, Jae Sic LEE, Seung Yeon CHO
  • Publication number: 20180158409
    Abstract: A display device includes: a pixel unit including first pixels in a first pixel region, second pixels in a second pixel region, and third pixels in a third pixel region; a first scan driver configured to drive first scan lines coupled to the first pixels; a second scan driver configured to drive second scan lines coupled to the second pixels; and a third scan driver configured to drive third scan lines coupled to the third pixels, wherein the first scan driver, the second scan driver, and the third scan driver differently set a supply order of a scan signal supplied to the first scan lines, the second scan lines, and the third scan lines, corresponding to a first mode and a second mode different from the first mode.
    Type: Application
    Filed: December 7, 2017
    Publication date: June 7, 2018
    Inventors: Min Woo BYUN, Seung Yeon CHO, Jae Du NOH, Min Kyu WOO, Jae Sic LEE
  • Publication number: 20180158396
    Abstract: A display device includes a pixel unit including first pixels in a first pixel area, second pixels in a second pixel area, and third pixels in a third pixel area; a first scan driver including first multiplexers configured to operate in response to a first mode and a second mode different from the first mode, and to supply first scan signals to first scan lines connected to the first pixels; a second scan driver configured to supply second scan signals to second scan lines connected to the second pixels; and a third scan driver including second multiplexers configured to operate in response to the first mode and the second mode, and to supply third scan signals to third scan lines connected to the third pixels.
    Type: Application
    Filed: November 6, 2017
    Publication date: June 7, 2018
    Inventors: Jae Sic LEE, Min Woo BYUN, Jae Du NOH, Min Kyu WOO, Seung Yeon CHO
  • Publication number: 20180158393
    Abstract: A display device includes: first pixels at a first pixel area and connected to first scan lines; a first scan driver to supply first scan signals to the first scan lines; second pixels at a second pixel area and connected to second scan lines; a second scan driver to supply second scan signals to the second scan lines; third pixels at a third pixel area and connected to third scan lines; and a third scan driver to supply third scan signals to the third scan lines. In a first mode, each of the first scan signals has at least a portion having a first pulse width, and each of the second scan signals has at least a portion having a second pulse width different from the first pulse width.
    Type: Application
    Filed: November 1, 2017
    Publication date: June 7, 2018
    Inventors: Min Kyu Woo, Seung Kyu Lee, Jae Du Noh, Min Woo Byun, Jae Sic Lee, Seung Yeon Cho
  • Patent number: 9905165
    Abstract: A display device comprises a display panel including a plurality of active pixels and a plurality of dummy pixels adjacent to the plurality of active pixels and a control unit controlling a pixel driving circuit formed in each of the active pixels and a dummy driving circuit formed in each of the dummy pixels. The dummy driving circuit includes a dummy driving transistor, an A dummy transistor, and a B dummy transistor, and a control terminal of the A dummy transistor is connected to a control terminal of the dummy driving transistor, and an input terminal of the A dummy transistor is connected to an output terminal of the B dummy transistor, and an output terminal of the A dummy transistor is connected to an output terminal of the dummy driving transistor.
    Type: Grant
    Filed: April 6, 2015
    Date of Patent: February 27, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kyoung Jin Park, Min Kyu Woo
  • Patent number: 9852678
    Abstract: A display device includes: a display panel including a plurality of gate lines on a substrate, a plurality of data lines crossing the gate lines, and a plurality of pixels, each of the pixels being coupled to one of the gate lines and to one of the data lines; a data driver configured to output data signals through a plurality of channel terminals; and a line selector configured to transmit the data signals to a plurality of data line blocks, each of the data line blocks including a plurality of data lines, wherein the line selector includes a plurality of thin-film transistors, and at least two of the thin-film transistors have different sizes.
    Type: Grant
    Filed: November 23, 2016
    Date of Patent: December 26, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seon I Jeong, Hwa Young Song, Min Kyu Woo, Dong Sun Lee
  • Publication number: 20170365212
    Abstract: A display panel includes a distributor to transfer a second data signal to a second data line in a first period of a data period and to transfer a first data signal to a first data line in a second period of the data period, the second period being different from the first period; a first pixel electrically connected to the first data line, to initialize a first previous data signal in the data period in response to a first control signal, and to store the first data signal in the second period in response a scan signal; and a second pixel electrically connected to the second data line and to store the second data signal in the first period in response to the scan signal.
    Type: Application
    Filed: June 20, 2017
    Publication date: December 21, 2017
    Inventors: Chae-Han Hyun, Min-Kyu Woo
  • Publication number: 20170287404
    Abstract: A scan driver may include a first stage, a second stage, and a third stage. The first stage may include a first output transistor. The first output transistor may have a first buffer value. The second stage may be electrically connected to the first output transistor and may include a second output transistor. The second output transistor may have a second buffer value. The third stage may be electrically connected to the second output transistor and may include a third output transistor. The third output transistor may have a third buffer value. At least one of the second buffer value and the third buffer value may be unequal to the first buffer value.
    Type: Application
    Filed: March 14, 2017
    Publication date: October 5, 2017
    Inventors: Ji-Hye KIM, Min-Kyu WOO
  • Publication number: 20170076655
    Abstract: A display device includes: a display panel including a plurality of gate lines on a substrate, a plurality of data lines crossing the gate lines, and a plurality of pixels, each of the pixels being coupled to one of the gate lines and to one of the data lines; a data driver configured to output data signals through a plurality of channel terminals; and a line selector configured to transmit the data signals to a plurality of data line blocks, each of the data line blocks including a plurality of data lines, wherein the line selector includes a plurality of thin-film transistors, and at least two of the thin-film transistors have different sizes.
    Type: Application
    Filed: November 23, 2016
    Publication date: March 16, 2017
    Inventors: Seon I Jeong, Hwa Young Song, Min Kyu Woo, Dong Sun Lee
  • Publication number: 20170053591
    Abstract: A display device includes: a substrate comprising an active area; data lines extending in a first direction in the active area; scan lines extending in a second direction crossing the first direction in the active area; a plurality of repair lines extending in the first direction or in the second direction in the active area; and a multipath power line comprising a plurality of first wires in the active area and crossing the repair lines, and at least one second wire electrically connected to the first wires and extending in the active area to cross the first wires.
    Type: Application
    Filed: May 18, 2016
    Publication date: February 23, 2017
    Inventors: Myeong Hee Seo, Jun Won Choi, Min Kyu Woo
  • Patent number: 9548025
    Abstract: According to exemplary embodiments of the present disclosure, a capacitor may be connected to a gate electrode of a transistor. The capacitor includes a first gate electrode connected to the gate electrode of the transistor, a gate insulation layer formed on the first gate electrode, and an upper electrode formed on the gate insulation layer. The upper electrode is formed to cover a region where the first gate electrode and the upper electrode are overlapped. The capacitor is applicable to at least one of a light emitting driving circuit and a scan driving circuit, and at least one of the light emitting driving circuit and the scan driving circuit may be included in a display device.
    Type: Grant
    Filed: October 15, 2013
    Date of Patent: January 17, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Tae-Joon Kim, Min-Kyu Woo, Yang-Wan Kim
  • Patent number: 9530374
    Abstract: A display device includes: a display panel including a plurality of gate lines on a substrate, a plurality of data lines crossing the gate lines, and a plurality of pixels, each of the pixels being coupled to one of the gate lines and to one of the data lines; a data driver configured to output data signals through a plurality of channel terminals; and a line selector configured to transmit the data signals to a plurality of data line blocks, each of the data line blocks including a plurality of data lines, wherein the line selector includes a plurality of thin-film transistors, and at least two of the thin-film transistors have different sizes.
    Type: Grant
    Filed: September 17, 2014
    Date of Patent: December 27, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seon I Jeong, Hwa Young Song, Min Kyu Woo, Dong Sun Lee
  • Patent number: 9454934
    Abstract: A stage circuit includes first and second supply units. The first supply unit outputs a scan signal to a first output terminal. The second supply unit outputs an emission control signal to a second output terminal. The second supply unit includes a first transistor and a second transistor. The first transistor is between a first power source and the second output terminal, and has a gate electrode coupled to a first node. The second transistor is between the second output terminal and a second power source, and has a gate electrode coupled to a second node. Third and fourth transistors are coupled in series between the first power source and first node. A gate electrode of the third transistor is coupled to the third input terminal, and a gate electrode of the fourth transistor is coupled to the sixth input terminal.
    Type: Grant
    Filed: July 23, 2014
    Date of Patent: September 27, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Min-Kyu Woo
  • Patent number: 9443464
    Abstract: An organic light emitting display device having a stage circuit capable of creating a scan signal and a light emitting control signal. The stage circuit includes a control unit controlling a first node and a second node corresponding to signals of a first input terminal, a third input terminal, and a fourth input terminal, a first output unit supplying a light emitting control signal to a second output terminal corresponding to voltages at the first node and the second node, and a second output unit supplying a scan signal having different polarity than that of the light emitting control signal to a first output terminal corresponding to a signal of a second input terminal and voltages at the first node and the second node.
    Type: Grant
    Filed: November 15, 2012
    Date of Patent: September 13, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hwa-Young Song, Dong-Hwi Kim, Min-Kyu Woo, Ji-Hye Kim