Patents by Inventor Young-bae Park

Young-bae 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).

  • Patent number: 10223975
    Abstract: An electronic device may be provided with an organic light-emitting diode display. The display may include row driver circuitry that provides an emission control signal at an output terminal to display pixels. The emission control signals may enable or disable light emission by the pixels. The row driver circuitry may include a bootstrapping capacitor that stores charge for boosting a gate signal at an intermediate node for a pull-up transistor above a power supply voltage. The row driver circuitry may include a pull-down transistor coupled to the intermediate node. The source terminal of the pull-down transistor may be coupled to the output terminal or an additional pull-down transistor may be stacked with the pull-down transistor to reduce leakage current. Charge pump circuitry may be coupled to the intermediate node to ensure that the intermediate node is maintained at a voltage above the power supply voltage.
    Type: Grant
    Filed: October 1, 2014
    Date of Patent: March 5, 2019
    Assignee: Apple Inc.
    Inventors: Vasudha Gupta, Tsung-Ting Tsai, Jae Won Choi, Sang Y. Youn, Young Bae Park, Chin-Wei Lin
  • Publication number: 20190035346
    Abstract: A display may have an array of light-emitting diode pixels or pixels containing portions of a liquid crystal layer to which electric fields are applied using electrodes. A pixel with a light-emitting diode may have a drive transistor coupled in series with the light-emitting diode. A storage capacitor may be coupled to a gate of the drive transistor. A pixel with a liquid crystal portion may have a storage capacitor coupled to a given one of the electrodes in that pixel. Switching circuitry in each pixel may be used to load data from a data line into the storage capacitor of the pixel. The switching circuitry may include a semiconducting-oxide transistor coupled to an associated data line and a series-connected silicon transistor that is coupled to the storage capacitor.
    Type: Application
    Filed: September 27, 2018
    Publication date: January 31, 2019
    Inventors: Chin-Wei Lin, Jungbae Kim, Kyung Wook Kim, Minkyu Kim, Shih Chang Chang, Vasudha Gupta, Young Bae Park
  • Publication number: 20190006394
    Abstract: An electronic device may include a display having an array of display pixels on a substrate. The display pixels may be organic light-emitting diode display pixels or display pixels in a liquid crystal display. In an organic light-emitting diode display, hybrid thin-film transistor structures may be formed that include semiconducting oxide thin-film transistors, silicon thin-film transistors, and capacitor structures. The capacitor structures may overlap the semiconducting oxide thin-film transistors. Organic light-emitting diode display pixels may have combinations of oxide and silicon transistors. In a liquid crystal display, display driver circuitry may include silicon thin-film transistor circuitry and display pixels may be based on oxide thin-film transistors. A single layer or two different layers of gate metal may be used in forming silicon transistor gates and oxide transistor gates. A silicon transistor may have a gate that overlaps a floating gate structure.
    Type: Application
    Filed: September 10, 2018
    Publication date: January 3, 2019
    Inventors: Vasudha Gupta, Jae Won Choi, Shih Chang Chang, Tsung-Ting Tsai, Young Bae Park
  • Patent number: 10130660
    Abstract: The present application discloses a method for producing peripheral blood stem cells with improved angiogenic properties through EPO or APS priming, and a use thereof. The cells produced according to the method of the present application induce angiogenesis, and thus can be effectively used for the regeneration of, or recovery from, various diseases requiring facilitation of angiogenesis, such as ischemic diseases occurring in the muscle, brain, heart, kidney, or large intestine, e.g. tissue damage, cerebral infarction, stroke, reperfusion injury, myocardial infarction, congestive heart failure, peripheral vascular obstruction, cardiac hypertrophy, low heart contraction, low heart dilatation, maladaptive cardiomegaly, systolic heart failure, diastolic heart failure, hypertensive heart failure, artery or mitral valve diseases, heart blood vessels with pulmonary valve diseases, or ischemic heart blood vessels, caused by ischemia.
    Type: Grant
    Filed: June 5, 2014
    Date of Patent: November 20, 2018
    Assignee: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Young-Bae Park, Hyo-Soo Kim, Hyun-Jae Kang, Jin Hur, Jeehoon Kang, Jung-Kyu Han, Ji-Yeon Yun, Jae-Il Choi, Jin-A Kang
  • Patent number: 10121843
    Abstract: A display may have an array of pixels formed from thin-film transistor circuitry. The thin-film transistor circuitry may include thin-film layers of dielectric, semiconductor, and metal on a dielectric substrate. Test structures may be formed around the periphery of the substrate to facilitate testing of the thin-film circuitry during manufacturing. The test structures may include test pads that are coupled to the thin-film circuitry by test lines extending from the thin-film circuitry. Following testing, the outermost portions of the display and the test pads on these display portions may be removed by cutting the substrate along a substrate cut line. The test lines may be formed from parallel lines that are shorted together, semiconductor layers, multiple layers of conductive material, and other structures that resist corrosion along the cut line.
    Type: Grant
    Filed: June 8, 2016
    Date of Patent: November 6, 2018
    Assignee: Apple Inc.
    Inventors: Tsung-Ting Tsai, Chin-Wei Lin, Jae Won Choi, Young Bae Park
  • Patent number: 10121430
    Abstract: A display may have an array of light-emitting diode pixels or pixels containing portions of a liquid crystal layer to which electric fields are applied using electrodes. A pixel with a light-emitting diode may have a drive transistor coupled in series with the light-emitting diode. A storage capacitor may be coupled to a gate of the drive transistor. A pixel with a liquid crystal portion may have a storage capacitor coupled to a given one of the electrodes in that pixel. Switching circuitry in each pixel may be used to load data from a data line into the storage capacitor of the pixel. The switching circuitry may include a semiconducting-oxide transistor coupled to an associated data line and a series-connected silicon transistor that is coupled to the storage capacitor.
    Type: Grant
    Filed: November 16, 2015
    Date of Patent: November 6, 2018
    Assignee: Apple Inc.
    Inventors: Chin-Wei Lin, Jungbae Kim, Kyung Wook Kim, MinKyu Kim, Shih Chang Chang, Vasudha Gupta, Young Bae Park
  • Publication number: 20180314385
    Abstract: A touch screen having touch circuitry integrated into a display pixel stackup. The touch screen can include a transistor layer, an LED layer and a first layer. The first layer can operate as an LED cathode during a display phase and as touch circuitry during a touch sensing phase. The transistor layer can be at least partially utilized for transitioning between the display phase and the touch sensing phase. The touch screen can be fabricated to reduce or eliminate damage to the LED layer.
    Type: Application
    Filed: July 9, 2018
    Publication date: November 1, 2018
    Inventors: Vasudha GUPTA, Shih Chang CHANG, Young-Bae PARK, Ting-Kuo CHANG
  • Patent number: 10116351
    Abstract: A pollution detection circuit and a pollution detection method for data lines are provided. The pollution detection circuit and the method detect an impedance of at least one data terminal for detecting the pollution occurring at the data terminal or the data lines. The pollution occurring at the data terminal or the data lines is confirmed when the impedance is low.
    Type: Grant
    Filed: January 19, 2016
    Date of Patent: October 30, 2018
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Eui-Soo Kim, Ju-Hyun Kim, Yung-I Chang, Jian-Ming Fu, Zhi-Bo Tao, Jung-Sheng Chen, Young-Bae Park, David Jay Kunst
  • Patent number: 10108049
    Abstract: Devices and methods related to high-contrast liquid crystal displays (LCDs) are provided. For example, such an electronic device may include an LCD with two liquid crystal alignment layers not symmetric to one another and upper and lower polarizing layers respectively above and below the alignment layers. Light transmittance through the plurality of pixels may increase monotonically with gray scale voltage. The display may operate using a gray scale level 0 voltage higher than a minimum gray scale level 0 voltage capability of the display. Additionally or alternatively, liquid crystal molecular alignment axes of the two alignment layers may be offset from one another by an angle other than a multiple of 180 degrees. Additionally or alternatively, a first polarizing axis of the upper polarizing layer or a second polarizing axis of the lower polarizing layer, or both, may be neither parallel nor perpendicular to one of the liquid crystal molecular alignment axes.
    Type: Grant
    Filed: June 4, 2010
    Date of Patent: October 23, 2018
    Assignee: Apple Inc.
    Inventors: EnkhAmgalan Dorjgotov, Zhibing Ge, Ming Xu, Cheng Chen, Young Bae Park, John Z. Zhong, Wei Chen, Shawn Robert Gettemy
  • Patent number: 10096622
    Abstract: An electronic device may include a display having an array of display pixels on a substrate. The display pixels may be organic light-emitting diode display pixels or display pixels in a liquid crystal display. In an organic light-emitting diode display, hybrid thin-film transistor structures may be formed that include semiconducting oxide thin-film transistors, silicon thin-film transistors, and capacitor structures. The capacitor structures may overlap the semiconducting oxide thin-film transistors. Organic light-emitting diode display pixels may have combinations of oxide and silicon transistors. In a liquid crystal display, display driver circuitry may include silicon thin-film transistor circuitry and display pixels may be based on oxide thin-film transistors. A single layer or two different layers of gate metal may be used in forming silicon transistor gates and oxide transistor gates. A silicon transistor may have a gate that overlaps a floating gate structure.
    Type: Grant
    Filed: October 6, 2017
    Date of Patent: October 9, 2018
    Assignee: Apple Inc.
    Inventors: Vasudha Gupta, Jae Won Choi, Shih Chang Chang, Tsung-Ting Tsai, Young Bae Park
  • Patent number: 10061164
    Abstract: A display that contains a column spacer arrangement which takes advantage of a protrusion on a TFT substrate is provided. One set of column spacers is disposed on top of the protrusion, while a second set of column spacers of substantially the same height as the first set of column spacers are disposed throughout the display. In this way, the display is adequately protected against deformation from external forces while at the same maintaining enough room to allow for a liquid crystal to spread out during the manufacturing process.
    Type: Grant
    Filed: June 20, 2016
    Date of Patent: August 28, 2018
    Assignee: Apple Inc.
    Inventors: Kyung-Wook Kim, Shih-Chang Chang, Cheng Chen, Young-Bae Park, John Z. Zhong
  • Patent number: 10044276
    Abstract: A power supply includes a phase-cut pre-regulator. The phase-cut pre-regulator comprises a switching device connected between a line voltage and an input voltage of a bulk capacitor and a comparator receiving the line voltage and a reference voltage, comparing the line voltage with hysteresis reference voltages based on the reference voltage, and switching the switching device according to the compared result.
    Type: Grant
    Filed: May 4, 2017
    Date of Patent: August 7, 2018
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Charlie Wang, Sang Cheol Moon, Young-Bae Park
  • Patent number: 10019103
    Abstract: A touch screen having touch circuitry integrated into a display pixel stackup. The touch screen can include a transistor layer, an LED layer and a first layer. The first layer can operate as an LED cathode during a display phase and as touch circuitry during a touch sensing phase. The transistor layer can be at least partially utilized for transitioning between the display phase and the touch sensing phase. The touch screen can be fabricated to reduce or eliminate damage to the LED layer.
    Type: Grant
    Filed: May 6, 2016
    Date of Patent: July 10, 2018
    Assignee: Apple Inc.
    Inventors: Vasudha Gupta, Shih Chang Chang, Young-Bae Park, Ting-Kuo Chang
  • Patent number: 10020354
    Abstract: An electronic device may include a display having an array of display pixels on a substrate. The display pixels may be organic light-emitting diode display pixels or display pixels in a liquid crystal display. In an organic light-emitting diode display, hybrid thin-film transistor structures may be formed that include semiconducting oxide thin-film transistors, silicon thin-film transistors, and capacitor structures. The capacitor structures may overlap the semiconducting oxide thin-film transistors. The silicon transistors may be configured in a top gate arrangement. The oxide transistors may be configured in a top gate or a bottom gate arrangement. In one embodiment, source-drain contacts for the silicon and oxide transistors may be formed simultaneously. In another embodiment, the silicon and oxide thin-film transistor structures may be formed using at least three metal routing layers.
    Type: Grant
    Filed: September 15, 2015
    Date of Patent: July 10, 2018
    Assignee: Apple Inc.
    Inventors: Jungbae Kim, Kyung Wook Kim, MinKyu Kim, Shih Chang Chang, Young Bae Park, Jae Won Choi
  • Patent number: 9976118
    Abstract: A method for inducing tailored pluripotent stem cells by reprogramming differentiated cells of an adult by using an extract of plant stem cells and plant dedifferentiated stem cells (callus); pluripotent stem cells produced by means of the method; and a cell therapy agent comprising the pluripotent stem cells are disclosed. It is possible to overcome ethical problems since eggs are not used in the making of pluripotent stem cells having abilities like embryonic stem cells. It is possible to produce pluripotent stem cells of ensured safety because a plant stem cell extract which above all has been verified to be harmless to the body is used. It is possible to develop an immunocompatible cell therapy agent tailored to different individuals.
    Type: Grant
    Filed: January 28, 2014
    Date of Patent: May 22, 2018
    Assignee: SNU R&DB FOUNDATION
    Inventors: Yoo-Wook Kwon, Young-Bae Park, Hyo-Soo Kim, Jae-Seung Paek
  • Publication number: 20180139389
    Abstract: An electronic device includes a housing having a first face that faces a first direction and a second face that faces a second direction which is opposite the first face, in which the first face is formed to have an at least partially transparent portion and at least one opening formed adjacent to the at least partially transparent portion; a camera located within the housing and including an image sensor that faces the first direction through the at least partially transparent portion in the housing; an acoustic component structure including a space that is at least partially formed between the camera and the second face of the housing and connected to the at least one opening, and at least one vibrating structure that is located in the space and is movable in the first direction or the second direction to generate sound; a circuit that is located within the housing and is electrically connected to the acoustic component structure to provide a sound-associated signal to the acoustic component structure; and
    Type: Application
    Filed: November 13, 2017
    Publication date: May 17, 2018
    Inventors: Young-Bae PARK, Joon-Rae Cho, Hyun-Ho Yu, Han-Bom Park, Byoung-Uk Yoon, Kyung-Hee Lee, Ho-Chul Hwang
  • Patent number: 9957659
    Abstract: A fabric treating machine includes a spray nozzle for spraying water supplied from a water supply passage into an inner tub and a spray nozzle combining unit for combining the spray nozzle with a case. Fabric loaded in the inner tub can be effectively soaked through the spray nozzle. Furthermore, a spray direction of the spray nozzle can be accurately adjusted when the spray nozzle is fitted in the case, and thus the spray nozzle can be easily fitted in the case and water sprayed through the spray nozzle can be prevented from overflowing.
    Type: Grant
    Filed: December 27, 2013
    Date of Patent: May 1, 2018
    Assignee: LG ELECTRONICS INC.
    Inventors: Kyu Bum Lee, Young Jong Kim, Young Bae Park
  • Patent number: 9940873
    Abstract: An organic light-emitting diode display may have an array of pixel circuits. Each pixel circuit may contain an organic light-emitting diode that emits light, a drive transistor that controls current flow through the diode, and additional transistors such as switching transistors for loading data into the pixel circuit and emission transistors for enabling and disabling current flow through the drive transistor and diode. Gate driver circuitry may produce emission control signals that control the emission transistors. Display driver circuitry may generate a start signal with a digitally controlled pulse width. The start signal may be applied to shift register circuitry in the gate driver circuitry. The pulse width of the start signal may be adjusted to adjust the luminance of the display.
    Type: Grant
    Filed: November 7, 2014
    Date of Patent: April 10, 2018
    Assignee: Apple Inc.
    Inventors: Vasudha Gupta, Chin-Wei Lin, Shih Chang Chang, Tsung-Ting Tsai, Young Bae Park
  • Patent number: 9939699
    Abstract: A display may be provided with an active central region and a peripheral inactive region. The display may have one or more flexible edges in the peripheral inactive region. Conductive lines may pass between components in the active central region such as display pixels and touch sensor electrodes and components in the inactive peripheral region such as gate driver circuitry and patterned interconnect lines. Each conductive line may have an unbent segment on a portion of a display layer in the active central region and may have a segment on the bent edge of the display layer. The display layer may be formed from a polymer or other flexible material. The bent segments may be configured to be less susceptible to increases in resistance from bending than the unbent segments.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: April 10, 2018
    Assignee: Apple Inc.
    Inventors: Young Bae Park, John Z. Zhong, Shih-Chang Chang, Wei Chen
  • Patent number: 9933424
    Abstract: The present invention concerns a human resistin receptor. More particularly, the present invention provides a method for screening a receptor of human resistin protein, a method for preventing or treating an inflammatory disease and arteriosclerosis using an expression- or activity-regulator for a human resistin receptor, and a pharmaceutical composition including an expression- or activity-regulator for the human resistin receptor. The method for screening a human resistin protein receptor according to the present invention enables separation of a receptor which directly binds to resistin from human monocyte, reveals a mechanism of signal transduction of the resistin receptor, and therefore, is expected to contribute to regulation of an inflammatory effect of monocyte, molecular detection of causes for vascular inflammation and arteriosclerosis, and developments of prevention and a treating agent for an inflammatory disease and arteriosclerosis.
    Type: Grant
    Filed: August 7, 2012
    Date of Patent: April 3, 2018
    Assignee: Seoul National University Hospital
    Inventors: Young Bae Park, Hyo Soo Kim, Yoo Wook Kwon, Sahmin Lee, Hyun Chae Lee, Young Jin Cho, Sang Eun Lee, Jun Ho Chung