Patents by Inventor Won-Kyu Kwak

Won-Kyu Kwak 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: 11302262
    Abstract: An organic light-emitting display device includes: a data driver configured to divide one frame into an odd-numbered sub-frame and an even-numbered sub-frame, to divide frame data for implementing the one frame into odd-numbered sub-frame data and even-numbered sub-frame data, to provide the odd-numbered sub-frame data to the data lines in the odd-numbered sub-frame, and to provide the even-numbered sub-frame data to the data lines in the even-numbered sub-frame; an odd-numbered scan driver electrically connected to odd-numbered scan lines to provide an odd-numbered scan signal to the odd-numbered scan lines in the odd-numbered sub-frame; an even-numbered scan driver electrically connected to even-numbered scan lines to provide an even-numbered scan signal to the even-numbered scan lines in the even-numbered sub-frame; an emission driver to provide an emission signal to emission line groups formed by grouping the emission lines by two adjacent emission lines in the odd-numbered sub-frame and the even-numbered
    Type: Grant
    Filed: November 30, 2020
    Date of Patent: April 12, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hai-Jung In, Won Kyu Kwak, Jae-Sic Lee
  • Patent number: 11296175
    Abstract: An improved organic light-emitting display apparatus prevents damage of wiring due to a mask during the manufacturing process, and a manufacturing method thereof. An organic light-emitting display apparatus includes a display unit formed on a substrate, a pad unit formed at one outer side of the display unit on the substrate, a wiring unit formed as a multilayer structure on the substrate to couple the display unit to the pad unit, a thin film encapsulating layer covering the display unit, and a protrusion unit that does not overlap the uppermost layer of wiring of the multilayered wiring unit.
    Type: Grant
    Filed: August 14, 2019
    Date of Patent: April 5, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yang-Wan Kim, Won-Kyu Kwak
  • Patent number: 11296154
    Abstract: A display device includes a display panel including a first region and a second region, and a sensing module on a rear side of the display panel. The first region includes a first pixel area to display an image. The second region includes a second pixel area to display the image and a transmission area to transmit light output by the sensing module. The second region overlaps the sensing module. The second pixel area overlaps a first layer that blocks light output by the sensing module. The transmission area does not overlap the first layer.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: April 5, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jin Woo Park, Won Kyu Kwak, Dong Wook Kim, Hyun-Chol Bang
  • Publication number: 20220100346
    Abstract: A display device includes a first area including a display area, a second area including a pad area, a bending area disposed between the first area and the second area, a plurality of touch signal lines extending from the second area to the first area through the bending area, a plurality of touch test lines disposed in the second area and separated and spaced apart from the plurality of touch signal lines, and a plurality of touch connection lines electrically connecting the plurality of touch signal lines and the plurality of touch test lines, wherein, in the second area, the plurality of touch signal lines and the plurality of touch test lines include a first conductive layer, and the plurality of touch connection lines includes a second conductive layer different from the first conductive layer.
    Type: Application
    Filed: August 18, 2021
    Publication date: March 31, 2022
    Inventors: Min Joo KIM, Ki Cheol KIM, Won Kyu KWAK
  • Patent number: 11289556
    Abstract: The present disclosure relates to a display device. An exemplary embodiment of the present invention provides a display device including a substrate and an active pattern positioned above the substrate. To the active pattern includes a channel region and a conductive region having a higher carrier concentration than the channel region. A first insulating layer is disposed on the active pattern. A first conductive layer is disposed on the first insulating layer and includes a first conductor. The channel region of the active pattern includes a first channel region overlapping the first conductor along a direction orthogonal to an upper surface of the substrate. The conductive region of the active pattern includes a first conductive region overlapping the first conductor along the direction orthogonal to the upper surface of the substrate.
    Type: Grant
    Filed: February 13, 2020
    Date of Patent: March 29, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jung-Bae Bae, Won Kyu Kwak
  • Publication number: 20220084468
    Abstract: A pixel and an organic light emitting diode (OLED) display using the pixel are disclosed. The pixel includes a driving transistor for transmitting a driving current, an OLED configured to receive a first portion of the driving current and a bypass transistor configured to receive a second portion of the driving current.
    Type: Application
    Filed: November 29, 2021
    Publication date: March 17, 2022
    Inventors: Jin-Tae Jeong, Won-Kyu Kwak
  • Publication number: 20220085136
    Abstract: An organic light emitting diode display includes a substrate, a semiconductor layer on the substrate, the semiconductor layer including a doped area and an undoped area, a first insulation layer that covers the semiconductor layer, a first conductor on the first insulation layer, a second insulation layer that covers the first conductor, a second conductor on the second insulation layer, a third insulation layer that covers the second conductor, and a third conductor on the third insulation layer, wherein, in the semiconductor layer that overlaps the first conductor, the doped area is between undoped areas.
    Type: Application
    Filed: November 22, 2021
    Publication date: March 17, 2022
    Applicant: Samsung Display Co., Ltd.
    Inventors: Sung Hwan KIM, Won Kyu KWAK, Sang Moo CHOI, Ji-Hyun KA, Chul Kyu KANG, Dong Wook KIM, Won Se LEE
  • Patent number: 11276351
    Abstract: A display device includes a display panel including an opening and a plurality of pixels that display an image, a crack detection line disposed along a periphery of the opening, and a plurality of data lines connected to the plurality of pixels. The crack detection line is connected to one of the plurality of data lines, and detects a crack at the periphery of the opening through a single pixel array connected to the one of the plurality of data lines.
    Type: Grant
    Filed: February 18, 2020
    Date of Patent: March 15, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kwang Sae Lee, Won Kyu Kwak, Ki Myeong Eom
  • Patent number: 11264408
    Abstract: An array substrate includes a substrate, a barrier layer disposed on the substrate, a buffer layer disposed on the barrier layer, a first insulating layer disposed on the buffer layer, a second insulating layer disposed on the first insulating layer, a plurality of wiring patterns disposed between the first insulating layer and the second insulating layer and/or on the second insulating layer. In addition, the wiring patterns are separated from each other, and extend toward a side of the substrate. The array substrate further includes a recess pattern disposed adjacent the wiring patterns and recessed from a top surface of the second insulating layer to expose at least part of a top surface of the substrate, and an organic insulating layer disposed on the second insulating layer and exposing at least part of a portion of the top surface of the substrate which is exposed by the recess pattern.
    Type: Grant
    Filed: January 22, 2020
    Date of Patent: March 1, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Won Kyu Kwak
  • Patent number: 11257422
    Abstract: A display device includes a power supply to supply a first initialization power source to the pixels through a first initialization and to supply a second initialization power source to the pixels through a second power line.
    Type: Grant
    Filed: October 22, 2020
    Date of Patent: February 22, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kyong Hwan Oh, Jin Tae Jeong, Ji Hyun Ka, Won Kyu Kwak, Hyung Jun Park, Chang Soo Pyon, Ji Eun Lee, Hai Jung In, Won Mi Hwang
  • Patent number: 11250745
    Abstract: An exemplary embodiment of the present inventive concept provides a display device including: a display area where an image is displayed; a peripheral area disposed outside the display area; a hole area disposed within the display area; a hole crack detection line disposed adjacent to the hole area to surround the hole area and having a first end and a second end that is separated from the first end; a first detection line extending from the peripheral area and connected to the hole crack detection line to constitute a first closed circuit; a second detection line extending from the peripheral area and connected to the hole crack detection line to constitute a second closed circuit; and a circuit portion connected to the first detection line and the second detection line.
    Type: Grant
    Filed: November 15, 2019
    Date of Patent: February 15, 2022
    Inventors: Kwang Sae Lee, Won Kyu Kwak, Ji-Hyun Ka, Gyeong Nam Bang, Ki Myeong Eom
  • Publication number: 20220045108
    Abstract: A display device is disclosed. In one aspect, the display device includes a substrate including a display area, the display area including a plurality of pixels configured to display an image and a pad area adjacent to the pad area and configured to transfer electrical signals. At least a portion of the pad area is bendable. The display device also includes an insulating layer formed over the substrate and including a bending groove in the pad area. The bending groove includes a sidewall. A plurality of peripheral wires is formed over the insulating layer, and a cutoff portion is connected to the sidewall and disposed between adjacent peripheral wires.
    Type: Application
    Filed: October 26, 2021
    Publication date: February 10, 2022
    Inventors: WON KYU KWAK, JAE YONG LEE
  • Publication number: 20220045158
    Abstract: Provided is a display device which comprises a substrate, a plurality of pixels disposed on the substrate, a first initialization voltage line disposed on the substrate along a first direction, and a second initialization voltage line disposed on a different layer from the first initialization voltage line, wherein the second initialization voltage line may include a horizontal portion disposed along the first direction and a vertical portion disposed along a second direction crossing the first direction, and the vertical portion may be disposed between a plurality of pixels adjacent to each other in the first direction.
    Type: Application
    Filed: May 20, 2021
    Publication date: February 10, 2022
    Inventors: Ji Su NA, Won Kyu KWAK, Yang Wan KIM, Young Jin CHO
  • Patent number: 11227518
    Abstract: A display device includes a display panel having a display area and a peripheral area. The display device includes a circuit having a comparator, and first and second sense wires disposed in the peripheral area and connected to the circuit. The comparator compares a first output signal output from the first sense wire and a second output signal output from the second sense wire to generate a comparison result. The circuit determines whether a defect is present in the display device based on the comparison result.
    Type: Grant
    Filed: May 15, 2018
    Date of Patent: January 18, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kwang Sae Lee, Jung Hoon Shim, Won Kyu Kwak, Ki Myeong Eom
  • Publication number: 20210390907
    Abstract: A pixel includes a plurality of transistors and an organic light emitting diode, in which the transistors include a first transistor to control an amount of current flowing to the organic light emitting diode and additional transistors are connected to the first transistor or the organic light emitting diode, the first transistor is a Low Temperature Poly-Silicon (LTPS) thin film transistor, and one or more of the other transistors are oxide semiconductor transistors.
    Type: Application
    Filed: August 30, 2021
    Publication date: December 16, 2021
    Inventors: Ji Hyun KA, Won Kyu Kwak, Han Sung Bae
  • Publication number: 20210389843
    Abstract: A touch screen panel includes: a flat panel display including an upper substrate, a lower substrate, and pixels arranged on a display region of the lower substrate in a stripe arrangement; first sensing cells arranged in a first direction on the upper substrate and second sensing cells arranged in a second direction on the upper substrate; first connection patterns electrically connecting adjacent ones of the first sensing cells to each other in the first direction, and second connection patterns electrically connecting adjacent ones of the second sensing cells to each other in the second direction, wherein at least one of the first connection patterns and the second connection patterns is inclined so that it partially overlaps with the pixels.
    Type: Application
    Filed: August 30, 2021
    Publication date: December 16, 2021
    Inventors: Do-Youb Kim, Won-Kyu Kwak, Brent Jang
  • Patent number: 11195440
    Abstract: A display device includes a defect inspection circuit, and a display panel having a display area and a peripheral area positioned outside the display area. The display panel includes a sensing wire positioned in the peripheral area and connected to the defect inspection circuit. The defect inspection circuit includes a resistance detection circuit that detects a resistance of the sensing wire based on an output signal corresponding to the sensing wire, a memory that stores first resistance information related to the resistance of the sensing wire detected in a first inspection operation, and a comparator circuit including a first comparator that compares the first resistance information with second resistance information. The second resistance information is related to the resistance of the sensing wire detected in a second inspection operation that is performed at a different time than the first inspection operation.
    Type: Grant
    Filed: May 23, 2018
    Date of Patent: December 7, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kwang Sae Lee, Jung Hoon Shim, Won Kyu Kwak, Ki Myeong Eom
  • Patent number: 11195896
    Abstract: An organic light emitting diode display includes a substrate, a semiconductor layer on the substrate, the semiconductor layer including a doped area and an undoped area, a first insulation layer that covers the semiconductor layer, a first conductor on the first insulation layer, a second insulation layer that covers the first conductor, a second conductor on the second insulation layer, a third insulation layer that covers the second conductor, and a third conductor on the third insulation layer, wherein, in the semiconductor layer that overlaps the first conductor, the doped area is between undoped areas.
    Type: Grant
    Filed: June 6, 2019
    Date of Patent: December 7, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sung Hwan Kim, Won Kyu Kwak, Sang Moo Choi, Ji-Hyun Ka, Chul Kyu Kang, Dong Wook Kim, Won Se Lee
  • Patent number: 11189231
    Abstract: A pixel and an organic light emitting diode (OLED) display using the pixel are disclosed. The pixel includes a driving transistor for transmitting a driving current, an OLED configured to receive a first portion of the driving current and a bypass transistor configured to receive a second portion of the driving current.
    Type: Grant
    Filed: February 7, 2020
    Date of Patent: November 30, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jin-Tae Jeong, Won-Kyu Kwak
  • Patent number: 11189204
    Abstract: A display device includes a peripheral area around a display area, a plurality of pixels in the display area, and a plurality of signal lines connected to the pixels. The signal lines include a plurality of data lines connected to the pixels, a crack detection line connected to first data lines among the data lines through a first transistor, and a control line connected to a gate of the first transistor. The crack detection line is in the peripheral area.
    Type: Grant
    Filed: May 28, 2020
    Date of Patent: November 30, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seung-Kyu Lee, Tae Hoon Kwon, Ji-Hyun Ka, Won Kyu Kwak, Dong Soo Kim, Han-Sung Bae, Hey Jin Shin, Seung Ji Cha