Patents by Inventor Kyung Rok Kim

Kyung Rok Kim 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: 10839748
    Abstract: Disclosed is a light emitting display apparatus. The light emitting display apparatus includes a plurality of pixels provided in a display area of a substrate and connected to a data line, a clock line, and a pixel driving power line. The plurality of pixels each include a pixel driving chip connected to the data line, the clock line, and the pixel driving power line to sequentially output a driving current through a plurality of output terminals thereof and a plurality of light emitting devices respectively connected to the plurality of output terminals, and the plurality of light emitting devices respectively and sequentially receive the driving current through the plurality of output terminals to emit light of different colors. Accordingly, light having a plurality of colors are respectively emitted in subfields of a unit frame, thereby preventing the occurrence of color breaking.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: November 17, 2020
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Taegung Kim, Kyung-Rok Kim, SeungTae Kim
  • Patent number: 10818241
    Abstract: The display apparatus may include gate lines passing through a display area of a substrate, data lines passing through the display area of the substrate, pixel driving power lines passing through the display area of the substrate, a plurality of pixels having a pixel driving chip mounted on at least one pixel area defined on the substrate and connected and connected to an adjacent gate line and data line and a light emission part connected to the pixel driving chip, a gate driving chip array part mounted in a non-display area of the substrate and connected to the gate lines, and a data driving chip array part mounted in the non-display area of the substrate and connected to the data lines.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: October 27, 2020
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Kyung-Rok Kim, Taegung Kim, Haejin Park, EunJi Park, Kimin Son
  • Patent number: 10706785
    Abstract: A rollable display including a flexible display panel having a screen that is separated into an exposed display region and a non-exposed display region. The screen of the flexible display panel is moved using a screen driver, and a moving direction of the exposed display region is controlled to be opposite to a moving direction of the screen, to distribute the stress of pixels, without changing an absolute location of the exposed display region, and to defer degradation of the pixels.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: July 7, 2020
    Assignee: LG DISPLAY CO., LTD.
    Inventor: Kyung-Rok Kim
  • Patent number: 10684320
    Abstract: Provided is a method of evaluating a performance of a suspended channel plasma wave device (PWD) to evaluate a terahertz emission possibility of the suspended channel PWD based on physical properties of the suspended channel PWD. The method includes an x-axis setting operation of setting an electron drift velocity to be an x-axis; a y-axis setting operation of setting a plasma wave velocity to be a y-axis; and a device performance determining operation of determining an operation of a device by generating a design window based on a plasma wave generation condition of the suspended channel PWD and a relational expression between the plasma wave velocity and the electron drift velocity.
    Type: Grant
    Filed: December 31, 2015
    Date of Patent: June 16, 2020
    Assignee: UNIST (ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY)
    Inventors: Kyung Rok Kim, Jong Yul Park, Sung-Ho Kim, Yu-Jung Jung
  • Patent number: 10614762
    Abstract: Disclosed is a display apparatus having a simplified configuration. The display apparatus includes a substrate including a display area including a plurality of pixel areas defined in a first direction and a second direction intersecting the first direction and a non-display area surrounding the display area, a plurality of pixels each including a pixel driving chip provided in a corresponding pixel area of the plurality of pixel areas of the substrate and a light emission part connected to the pixel driving chip, a plurality of pixel data transfer lines sequentially transferring digital pixel data to pixel driving chips of pixels arranged in the first direction, and a plurality of clock transfer lines sequentially transferring a reference clock to the pixel driving chips of the pixels arranged in the first direction. The pixel driving chip allows the light emission part to emit light, based on the digital pixel data and the reference clock input thereto.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: April 7, 2020
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Kyung-Rok Kim, Taegung Kim
  • Patent number: 10594894
    Abstract: An image acquisition apparatus, an image forming apparatus, and a control method of the same are provided. An image acquisition apparatus includes an image sensor in which a red element outputting a signal corresponding to a red light, a green element outputting a signal corresponding to a green light, and a blue element outputting a signal corresponding to a blue light are arranged in a predetermined pattern, a driving unit configured to move the image sensor to a plurality of positions; and an image processor configured to receive a signal output from the red element, the green element and the blue element in the plurality of positions, respectively, and configured to acquire an image of an object by combining the received signal.
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: March 17, 2020
    Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventor: Kyung Rok Kim
  • Publication number: 20190206324
    Abstract: Disclosed is a light emitting display apparatus. The light emitting display apparatus includes a plurality of pixels provided in a display area of a substrate and connected to a data line, a clock line, and a pixel driving power line. The plurality of pixels each include a pixel driving chip connected to the data line, the clock line, and the pixel driving power line to sequentially output a driving current through a plurality of output terminals thereof and a plurality of light emitting devices respectively connected to the plurality of output terminals. Accordingly, a gate driving circuit and a gate line connected to the gate driving circuit are removed from one end of a display panel and omitted, thereby minimizing the number of pad parts disposed in the display panel.
    Type: Application
    Filed: December 17, 2018
    Publication date: July 4, 2019
    Applicant: LG Display Co., Ltd.
    Inventors: Taegung Kim, Kyung-Rok Kim, Juyoung Noh
  • Publication number: 20190206333
    Abstract: Disclosed is a light emitting display apparatus. The light emitting display apparatus includes a substrate including a display area including a plurality of pixel areas and a non-display area surrounding the display area, a plurality of gate lines passing through the display area of the substrate, a plurality of data lines passing through the display area of the substrate, a plurality of pixel driving power lines passing through the display area of the substrate, a plurality of pixels respectively provided in the plurality of pixel areas of the substrate and connected to an adjacent gate line, an adjacent data line, and an adjacent pixel driving power line, and a gate buffer provided in the display area of the substrate and connected to a corresponding gate line of the plurality of gate lines.
    Type: Application
    Filed: December 17, 2018
    Publication date: July 4, 2019
    Applicant: LG Display Co., Ltd.
    Inventors: Kyung-Rok Kim, Kimin Son
  • Publication number: 20190206325
    Abstract: Disclosed is a display apparatus having a simplified configuration. The display apparatus includes a substrate including a display area including a plurality of pixel areas defined in a first direction and a second direction intersecting the first direction and a non-display area surrounding the display area, a plurality of pixels each including a pixel driving chip provided in a corresponding pixel area of the plurality of pixel areas of the substrate and a light emission part connected to the pixel driving chip, a plurality of pixel data transfer lines sequentially transferring digital pixel data to pixel driving chips of pixels arranged in the first direction, and a plurality of clock transfer lines sequentially transferring a reference clock to the pixel driving chips of the pixels arranged in the first direction. The pixel driving chip allows the light emission part to emit light, based on the digital pixel data and the reference clock input thereto.
    Type: Application
    Filed: December 19, 2018
    Publication date: July 4, 2019
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Kyung-Rok Kim, Taegung Kim
  • Publication number: 20190206330
    Abstract: Disclosed is a display apparatus with a simplified configuration. The display apparatus may include gate lines passing through a display area of a substrate, data lines passing through the display area of the substrate, pixel driving power lines passing through the display area of the substrate, a plurality of pixels having a pixel driving chip mounted on at least one pixel area defined on the substrate and connected and connected to an adjacent gate line and data line and a light emission part connected to the pixel driving chip, a gate driving chip array part mounted in a non-display area of the substrate and connected to the gate lines, and a data driving chip array part mounted in the non-display area of the substrate and connected to the data lines.
    Type: Application
    Filed: December 19, 2018
    Publication date: July 4, 2019
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Kyung-Rok Kim, Taegung Kim, Haejin Park, EunJi Park, Kimin Son
  • Publication number: 20190206319
    Abstract: Disclosed is a light emitting display apparatus. The light emitting display apparatus includes a plurality of pixels provided in a display area of a substrate and connected to a data line, a clock line, and a pixel driving power line. The plurality of pixels each include a pixel driving chip connected to the data line, the clock line, and the pixel driving power line to sequentially output a driving current through a plurality of output terminals thereof and a plurality of light emitting devices respectively connected to the plurality of output terminals, and the plurality of light emitting devices respectively and sequentially receive the driving current through the plurality of output terminals to emit light of different colors. Accordingly, light having a plurality of colors are respectively emitted in subfields of a unit frame, thereby preventing the occurrence of color breaking.
    Type: Application
    Filed: December 19, 2018
    Publication date: July 4, 2019
    Applicant: LG Display Co., Ltd.
    Inventors: Taegung Kim, Kyung-Rok Kim, SeungTae Kim
  • Publication number: 20190204954
    Abstract: Disclosed is a display apparatus which senses a user touch and has a simplified configuration. The display apparatus including a substrate including a display area includes a plurality of pixel areas and a non-display area surrounding the display area, a plurality of pixels including a pixel driving chip provided in each of the plurality of pixel areas of the substrate and a light emission part connected to the pixel driving chip, and a plurality of touch electrodes disposed in the display area to overlap two or more pixels. A first pixel driving chip of two or more pixel driving chips overlapping a corresponding touch electrode of the plurality of touch electrodes is connected to the corresponding touch electrode.
    Type: Application
    Filed: December 19, 2018
    Publication date: July 4, 2019
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Taegung KIM, Kyung-Rok Kim
  • Publication number: 20190206961
    Abstract: Disclosed is a light emitting display apparatus. The light emitting display apparatus includes a substrate including a display area including a plurality of pixel areas and a non-display area surrounding the display area, first to nth gate lines passing through the display area of the substrate, first to mth data lines passing through the display area of the substrate, first to mth pixel driving power lines passing through the display area of the substrate, a plurality of pixels provided in at least one pixel area of the substrate and connected to an adjacent gate line, an adjacent data line, and an adjacent pixel driving power line, and at least one data buffer chip provided in the display area of the substrate and connected to a corresponding data line of the first to mth data lines. Accordingly, a constant data voltage charging rate of each of the pixels is maintained regardless of a distance between a data driving circuit and each of the pixels.
    Type: Application
    Filed: December 17, 2018
    Publication date: July 4, 2019
    Applicant: LG Display Co., Ltd.
    Inventors: Kyung-Rok Kim, Taegung Kim, SeungTae Kim
  • Publication number: 20190197960
    Abstract: A rollable display including a flexible display panel having a screen that is separated into an exposed display region and a non-exposed display region. The screen of the flexible display panel is moved using a screen driver, and a moving direction of the exposed display region is controlled to be opposite to a moving direction of the screen, to distribute the stress of pixels, without changing an absolute location of the exposed display region, and to defer degradation of the pixels.
    Type: Application
    Filed: September 18, 2018
    Publication date: June 27, 2019
    Applicant: LG DISPLAY CO., LTD.
    Inventor: Kyung-Rok Kim
  • Patent number: 10211511
    Abstract: The purpose of the present invention is to provide a terahertz detector using a field-effect transistor capable of implementing high sensitivity by exhibiting an asymmetric characteristic only with a form of a source/drain and a gate. To this end, the present invention relates to the terahertz detector using a field-effect transistor comprising: a source formed by being doped on a portion of a silicon base; a channel formed so as to encompass the source on a plane; a drain formed outside the channel; a dielectric layer formed on an upper end of the source, the channel and the drain; and a gate located at an upper end of the dielectric layer, wherein when terahertz electromagnetic waves are applied through the gate, the intensity of the electromagnetic waves is detected using a current/voltage outputted from the source and the drain.
    Type: Grant
    Filed: January 23, 2015
    Date of Patent: February 19, 2019
    Assignee: UNIST (ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY)
    Inventors: Kyung Rok Kim, Min Woo Ryu, Kwan Sung Kim
  • Patent number: 10161804
    Abstract: An electromagnetic wave generator includes a 2DEG plate, a first resistor, a second resistor, a source and a floating plate and a dielectric body. The 2DEG plate is configured to form a 2DEG channel. The first resistor is connected to one side node of the 2DEG plate. The second resistor is connected to an opposite side node of the 2DEG plate. The source is disposed between the second resistor and a ground and configured to apply electric power to the 2DEG plate. The floating plate is configured to generate an electromagnetic wave using electric dipoles formed by the 2DEG channel. The dielectric body is formed between the 2DEG plate and the floating plate.
    Type: Grant
    Filed: December 30, 2014
    Date of Patent: December 25, 2018
    Assignee: UNIST (ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY)
    Inventors: Kyung Rok Kim, Jong Ryul Park, Sung Ho Kim, Sang Gug Lee
  • Patent number: 10158776
    Abstract: An image forming apparatus includes a scanner and a printing apparatus, wherein the scanner includes a scanning window; a transport unit configured to transport a document to a top surface of the scanning window; a scan unit configured to obliquely irradiate light to a bottom surface of the scanning window to scan the document; a transport guide member configured to be disposed to face the top surface of the scanning window to guide a transport of the document; and a curved reflection member configured to be coupled to the transport guide member to collect the light irradiated from the scan unit and to reflect the collected light toward the scanning window.
    Type: Grant
    Filed: August 10, 2017
    Date of Patent: December 18, 2018
    Assignee: HP PRINTING KOREA CO., LTD.
    Inventors: Jeong-yul Kim, Kyung-rok Kim
  • Patent number: 10133550
    Abstract: A ternary logic circuit according to the present invention includes a pull-up device (100) and a pull-down device (200) connected in series between power voltage sources (VDD and GND), and an input voltage (VIN) source and output voltage (VOUT) source. When both the pull-up device (100) and the pull-down device (200) are turned off by an input voltage (VIN), both the pull-up device (100) and the pull-down device (200) operate as simple resistors which are affected only by an output voltage (VOUT) and form a ternary digit (“1” state) through voltage division. When only one of the pull-up device (100) or the pull-down device (200) is turned on to allow a current to flow therethrough, VDD (“2” state) or GND (“0” state) is output as the output voltage (VOUT). Accordingly, a bit density can be remarkably increased.
    Type: Grant
    Filed: December 29, 2015
    Date of Patent: November 20, 2018
    Assignee: UNIST(ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY)
    Inventors: Kyung Rok Kim, Sun Hae Shin, E San Jang, Jae Won Jeong
  • Publication number: 20180205843
    Abstract: An image forming apparatus includes a scanner and a printing apparatus, wherein the scanner includes a scanning window; a transport unit configured to transport a document to a top surface of the scanning window; a scan unit configured to obliquely irradiate light to a bottom surface of the scanning window to scan the document; a transport guide member configured to be disposed to face the top surface of the scanning window to guide a transport of the document; and a curved reflection member configured to be coupled to the transport guide member to collect the light irradiated from the scan unit and to reflect the collected light toward the scanning window.
    Type: Application
    Filed: August 10, 2017
    Publication date: July 19, 2018
    Applicant: S-Printing Solution Co., Ltd.
    Inventors: Jeong-yul KIM, Kyung-rok Kim
  • Patent number: 10020370
    Abstract: A ring-type FET may include a silicon base, a source formed on a portion of the silicon base through doping, a channel formed to encompass the source on a plane, a drain formed outside the channel, a dielectric layer formed on the source, the channel and the drain, and a gate provided on the dielectric layer, wherein a center of the source is spaced apart from a center of the channel, and the gate is formed of a metal material, disposed above the channel and configured to cover an upper face of the channel and overlap a portion of the source and a portion of the drain.
    Type: Grant
    Filed: December 31, 2015
    Date of Patent: July 10, 2018
    Assignee: UNIST (ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY)
    Inventors: Kyung Rok Kim, Min Woo Ryu, Sang Hyo Ahn