Patents by Inventor Jong-Woo Park

Jong-Woo Park 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: 20210134227
    Abstract: A method of operating a display device may include the following steps: in a first frame period, before turning off a gate initialization transistor, changing an initialization voltage from a first level to a second level and subsequently returning the initialization voltage to the first level; in a second frame period, before turning off the gate initialization transistor, changing the initialization voltage from the first level to the second level and/or a third level and subsequently returning the initialization voltage to the first level. The display device may include the gate initialization transistor and a driving transistor. A first electrode the gate initialization transistor may receive the initialization voltage. A second electrode of the gate initialization transistor may be electrically connected to a gate electrode of the driving transistor. The first level, the second level, and the third level may be unequal to each other.
    Type: Application
    Filed: May 7, 2020
    Publication date: May 6, 2021
    Inventors: Ki Ju Im, Jong Woo Park, Hyun Cheol Hwang
  • Publication number: 20210104558
    Abstract: A display device is provided.
    Type: Application
    Filed: May 15, 2020
    Publication date: April 8, 2021
    Inventors: June Hwan KIM, Tae Young KIM, Jong Woo PARK, Young Tae CHOI, Hyun Cheol HWANG, Ki Ju IM
  • Patent number: 10971560
    Abstract: Disclosed herein are a display device, an apparatus for testing a display device, and a method for testing a display device. A display device includes a first substrate having a display area and a non-display area defined thereon, the non-display area being on an outer side of the display area. The non-display area may include a plurality of test pads and a first dummy thin-film transistor electrically connected to the test pads. The first dummy thin-film transistor includes a dummy gate electrode, and a dummy source electrode and a dummy drain electrode insulated from the gate electrode and spaced apart from each other. A bending area is defined on the first substrate that at least partially traverses the display area and the non-display area, the bending area overlaps the first dummy thin-film transistor.
    Type: Grant
    Filed: May 6, 2019
    Date of Patent: April 6, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyo Jung Kim, June Hwan Kim, Jong Woo Park, Dae Guen Choi, Jae Sik Son, Young Tae Choi
  • Publication number: 20210057301
    Abstract: A flexible semiconductor package includes a semiconductor chip accommodated in a cavity formed in a substrate, a molding layer covering an entire upper surface of the substrate and the cavity, and a wiring portion including an insulating layer and a redistribution member provided under lower surfaces of the substrate and the semiconductor chip, wherein the molding layer includes a pre-preg in which a resin is impregnated with a glass fabric, and the molding layer and the insulating layer are attached to the semiconductor chip accommodated in the cavity by a roll-to-roll continuous process.
    Type: Application
    Filed: April 21, 2020
    Publication date: February 25, 2021
    Inventors: Jea Won KIM, Chong Han PARK, Jong Woo PARK
  • Patent number: 10877521
    Abstract: A display device includes a flexible substrate, a display element on the flexible substrate and including a thin film transistor, a metal layer disposed at a lower portion of the flexible substrate, and an air layer formed between the flexible substrate and the metal layer.
    Type: Grant
    Filed: May 10, 2019
    Date of Patent: December 29, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyo Jung Kim, Tae Young Kim, Jong Woo Park, Dae Youn Cho, Ki Ju Im, Young Tae Choi
  • Publication number: 20200395546
    Abstract: An apparatus for manufacturing a display device, includes: a heater which generates heat; a pressing member which contacts a target object of a display device to transfer the heat to the target object; a body connected to each of the heater and the pressing member and through which the heat from the heater is provided to the pressing member; and a first housing cover extended from the body to surround the pressing member and the body in a plan view. Engagement of the first housing cover with the target object defines an internal space of the first housing cover having a temperature, and measurement by the apparatus, of the temperature of the internal space, controls bonding of layers of the target object to each other.
    Type: Application
    Filed: February 25, 2020
    Publication date: December 17, 2020
    Inventors: Min Chul SONG, Jong Woo PARK, Kyung Hae LEE, Sang Won JEONG
  • Patent number: 10854143
    Abstract: An organic light-emitting display device includes a display unit having a plurality of pixel units. The display device also includes a timing controller for calculating a black bias pixel ratio (BBPR) of the display unit based on image signals provided by an external source and for generating a control signal based on the BBPR. The BBPR is the ratio of a number of pixel units in a black state to a total number of pixel units. A power supply unit provides a driving voltage to the display unit based on the control signal from the timing controller, wherein the power supply unit provides a first driving voltage to the display unit when the BBPR is less than a reference value and provides a second driving voltage, which is higher than the first driving voltage, otherwise.
    Type: Grant
    Filed: January 4, 2019
    Date of Patent: December 1, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dae Youn Cho, Tae Young Kim, Hee Jin Kim, Jong Woo Park, Young Tae Choi
  • Patent number: 10815322
    Abstract: The present invention relates to a supported metallocene catalyst including a novel single metallocene compound having excellent polymerization activity, and a process for producing a polypropylene having excellent processability and broad molecular weight distribution using the same.
    Type: Grant
    Filed: October 11, 2017
    Date of Patent: October 27, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Jong Woo Park, Hye Kyung Lee, Byung Seok Kim, Sang Jin Jeon, Jae Youp Cheong, Hee Kwang Park
  • Publication number: 20200327850
    Abstract: A pixel includes a light emitting device, a first transistor for controlling an amount of current flowing from a first power source to a second power source via the light emitting device, in response to a voltage applied to a first node, a second transistor coupled between a data line and a second node corresponding to a first electrode of the first transistor, and including a gate electrode coupled to a first scan line, a third transistor coupled between the first node and a third node corresponding to a second electrode of the first transistor, and including a gate electrode coupled to the first scan line, and a fourth transistor coupled between the third transistor and the third node, and configured to maintain a turn-on state.
    Type: Application
    Filed: March 10, 2020
    Publication date: October 15, 2020
    Inventors: Dae Youn Cho, Ji Ho Moon, Jong Woo Park, Young Tae Choi
  • Publication number: 20200278135
    Abstract: An intelligent heat pump system having a dual heat exchanger structure includes a heat source side heat exchange member, a heat pump, an external expansion valve, a refrigerant-water heat exchanger, a heat storage tank, and a target side end unit. A refrigerant flows through the heat pump, the refrigerant-water heat exchanger, and the target side end unit, and in a non-air-conditioning state for the target site, circulates between the heat pump and the refrigerant-water heat exchanger, so that cooled or heated water is stored in the heat storage tank. In an air-conditioning state for the target site, the heat pump and the heat storage tank supply cooling and heating to the target site, so that the power consumption for normal operation is reduced in order to improve the operation efficiency of the intelligent heat pump system.
    Type: Application
    Filed: May 1, 2019
    Publication date: September 3, 2020
    Inventor: Jong-woo PARK
  • Publication number: 20200258453
    Abstract: A display device includes: a substrate; a gate pattern disposed on the substrate; an oxide semiconductor layer disposed on the substrate, the oxide semiconductor layer includes a channel region that overlaps with the gate pattern; and an insulating film disposed on the gate pattern, the insulating film includes majority carrier supporting ions, wherein the gate pattern includes a plurality of gate holes, wherein the gate holes are formed inside a region of the gate pattern that does not overlap with the channel region of the oxide semiconductor layer, and wherein the channel region of the oxide semiconductor layer includes the majority carrier supporting ions.
    Type: Application
    Filed: February 10, 2020
    Publication date: August 13, 2020
    Inventors: Ki Ju Im, Tae Young Kim, Hyo Jung Kim, Jong Woo Park, Young Tae Choi, Hyun Cheol Hwang
  • Publication number: 20200243006
    Abstract: A display device includes a plurality of pixels. Each pixel includes a first transistor that controls an amount of current received from a first power supply voltage line connected via a second node to an organic light emitting diode in response to a voltage of a first node, a second transistor connected between a data line and the second node and that includes a first gate electrode connected to a first scan line, a light emitting line connected to a gate electrode of at least one light emitting transistor located in a current path between the first power supply voltage line and the organic light emitting diode, and a seventh transistor connected between one of at least one second gate electrode of the second transistor and the light emitting line. Accordingly, a threshold voltage of a switching transistor included in each of the plurality of pixels may be negatively shifted.
    Type: Application
    Filed: September 11, 2019
    Publication date: July 30, 2020
    Inventors: Hyo Jung KIM, Tae Young KIM, Yong Sung Park, Jong Woo Park, Mi Seon SEO, Keun Soo LEE, Ki Ju IM, Dae Youn CHO, Young Tae CHOI, Hyun Cheol HWANG
  • Patent number: 10553725
    Abstract: A vertical stack transistor includes: a first transistor and a second transistor, located in a vertical direction, wherein the first transistor includes a first gate electrode, a first insulating layer, a first electrode, a first channel, and a second electrode, which are sequentially stacked in the vertical direction, and the second transistor includes a second gate electrode, a second insulating layer, a third electrode, a second channel, and a fourth electrode, which are sequentially stacked in the vertical direction, wherein the second gate electrode and the second electrode are the same electrode.
    Type: Grant
    Filed: August 10, 2018
    Date of Patent: February 4, 2020
    Assignees: Samsung Display Co., Ltd., Chung Ang University Industry Academic Cooperation Foundation
    Inventors: Tae Young Kim, Jong Woo Park, Hyuck-In Kwon, Dae-Hwan Kim, Hee-Joong Kim, Sae-Young Hong
  • Publication number: 20200033914
    Abstract: A display device includes a flexible substrate, a display element on the flexible substrate and including a thin film transistor, a metal layer disposed at a lower portion of the flexible substrate, and an air layer formed between the flexible substrate and the metal layer.
    Type: Application
    Filed: May 10, 2019
    Publication date: January 30, 2020
    Inventors: Hyo Jung KIM, Tae Young KIM, Jong Woo PARK, Dae Youn CHO, Ki Ju IM, Young Tae CHOI
  • Publication number: 20190392758
    Abstract: A display device including an emitting element. A first transistor includes a first electrode electrically connected to a first supply voltage line, a second electrode electrically connected to the emitting element, and a gate electrode receiving a data signal, the first transistor being configured to transfer a driving current to the emitting element based on the data signal. A capacitor is connected between the gate electrode of the first transistor and the first supply voltage line. An electric field generating element is connected between the second electrode of the first transistor and the gate electrode of the first transistor and includes ferroelectrics.
    Type: Application
    Filed: March 20, 2019
    Publication date: December 26, 2019
    Inventors: Tae Young Kim, Jong Woo Park, Hyo Jung Kim, Ki Ju Im, Young Tae Choi
  • Patent number: 10515911
    Abstract: Semiconductor devices include an interlayer insulating layer on a substrate, a first capacitor structure in the interlayer insulating layer, and a conductive layer including a terminal pad on the interlayer insulating layer. The first capacitor structure includes at least one first laminate, the at least one first laminate including a first lower electrode, a first capacitor insulating layer, and a first upper electrode sequentially on the substrate. The terminal pad does not overlap with the first capacitor structure.
    Type: Grant
    Filed: August 21, 2015
    Date of Patent: December 24, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: HyunSuk Chun, Jong-Woo Park, Chul-Yong Park, Jeong-Won Yoon
  • Publication number: 20190380950
    Abstract: The present disclosure relates to the injection composition containing acetaminophen, the injection composition comprising acetaminophen mixed in 0.01-5 wt %, a solubilizer mixed in 0.01-10 wt %, a toxicity inhibitor mixed in 0.05-5 wt %, an isotonic agent mixed in 0.1-10 wt %, an antioxidant mixed in 0.001-5 wt %, and the balance sterile purified water for injection.
    Type: Application
    Filed: January 24, 2018
    Publication date: December 19, 2019
    Inventors: Jong Woo Park, Jeong Rae Cho
  • Publication number: 20190348478
    Abstract: Disclosed herein are a display device, an apparatus for testing a display device, and a method for testing a display device. A display device includes a first substrate having a display area and a non-display area defined thereon, the non-display area being on an outer side of the display area. The non-display area may include a plurality of test pads and a first dummy thin-film transistor electrically connected to the test pads. The first dummy thin-film transistor includes a dummy gate electrode, and a dummy source electrode and a dummy drain electrode insulated from the gate electrode and spaced apart from each other. A bending area is defined on the first substrate that at least partially traverses the display area and the non-display area, the bending area overlaps the first dummy thin-film transistor.
    Type: Application
    Filed: May 6, 2019
    Publication date: November 14, 2019
    Inventors: Hyo Jung KIM, June Hwan KIM, Jong Woo PARK, Dae Guen CHOI, Jae Sik SON, Young Tae CHOI
  • Publication number: 20190318690
    Abstract: A display device includes a pixel, a first control pad, a second control pad, and a first dummy pad. The pixel may emit light with luminance corresponding to a data signal. Supply of the data signal to the pixel depends on a first control signal and a second control signal. The first control pad is connected to a first control line for supplying the first control signal. The second control pad is connected to a second control line for supplying the second control signal. The first dummy pad is positioned between the first control pad and the second control pad and may receive a first dummy signal. A voltage level of the first dummy signal is in a range from a voltage level of the first control signal to a voltage level of the second control signal.
    Type: Application
    Filed: April 3, 2019
    Publication date: October 17, 2019
    Inventors: Ju Hee LEE, Dae Youn CHO, Jong Woo PARK, Young Tae CHOI
  • Patent number: D904398
    Type: Grant
    Filed: February 19, 2019
    Date of Patent: December 8, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jong Woo Park, Ju Hee Lee, Dae Youn Cho, Young Tae Choi