Patents by Inventor Jongsu Oh

Jongsu Oh 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: 11961458
    Abstract: A display device includes: a display panel including a pixel array, in which pixels that include a plurality of inorganic light-emitting devices of different colors are arranged in a matrix form, and a pixel circuit that is provided for each of the plurality of inorganic light-emitting devices, and the pixel circuit controls, on the basis of an applied image data voltage, the driving time and the magnitude of driving current provided to the inorganic light-emitting devices; a sensor which senses, on the basis of a voltage applied to the pixel circuit, a current flowing through a driving transistor included in the pixel circuit and which outputs sensing data corresponding to the sensed current; and a corrector which corrects, on the basis of the sensed data, the image data voltage applied to the pixel circuit.
    Type: Grant
    Filed: January 18, 2023
    Date of Patent: April 16, 2024
    Assignees: SAMSUNG ELECTRONICS CO., LTD., RESEARCH & BUSINESS FOUNDATION UNIVERSITY
    Inventors: Jinho Kim, Yong-Sang Kim, Hoseop Lee, Donggun Oh, Jongsu Oh
  • Patent number: 11942026
    Abstract: Provided is a display apparatus including a modular display panel that includes a plurality of displays disposed in a matrix form and respectively including a display panel including a pixel array in which pixels including a plurality of inorganic light emitting elements are disposed in a plurality of row lines, sub-pixel circuits respectively corresponding to inorganic light emitting elements of the pixel array, a driver configured to drive the sub-pixel circuits, a sensor configured to sense a current flowing in a driving transistor included in the sub-pixel circuits and output sensing data corresponding to the sensed current, and a processor configured to correct the image data voltage applied to the sub-pixel circuits based on the sensing data, and a timing controller configured to provide a first start signal to a driver of a first display and a second start signal to a driver of a second display.
    Type: Grant
    Filed: August 29, 2022
    Date of Patent: March 26, 2024
    Assignees: SAMSUNG ELECTRONICS CO., LTD., RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventors: Jinho Kim, Yong-Sang Kim, Donggun Oh, Jongsu Oh, Eun Ho Kim, Seungran Park, Sara Hong
  • Patent number: 11929015
    Abstract: A display module includes a display panel in which a plurality of pixels each including a plurality of sub-pixels are disposed on a plurality of row lines; and a driver. The driver is configured to set a PWM data voltage to the plurality of sub-pixels included in the plurality of row lines in a row line sequence, apply a sweep signal, which is a voltage signal sweeping between two different voltages, to sub-pixels among the plurality of sub-pixels that are included in at least some consecutive row lines among the plurality of row lines in the row line sequence, and drive the display panel to cause the sub-pixels included in the at least some consecutive row lines to emit light based on the PWM data voltage in the row line sequence.
    Type: Grant
    Filed: December 6, 2022
    Date of Patent: March 12, 2024
    Assignees: SAMSUNG ELECTRONICS CO., LTD., RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventors: Jinho Kim, Yong-Sang Kim, Donggun Oh, Jongsu Oh, Tetsuya Shigeta
  • Patent number: 11929012
    Abstract: A display module and a display apparatus including the same are provided. The display module includes a module substrate; pixels provided on the module substrate; and a micro-pixel controller configured to supply drive currents to the pixels. The micro-pixel controller includes: a first input pad for receiving a power voltage; a second input pad for receiving a data voltage; pixel circuits configured to output the drive currents to the pixels; a control circuit configured to distribute the power voltage and the data voltage to the pixel circuits; a first ESD protection circuit connected to the first input pad and the control circuit through a first voltage line and configured to transmit the power voltage to the control circuit; and a second ESD protection circuit connected to the second input pad and the control circuit through a second voltage line and configured to transmit the data voltage to the control circuit.
    Type: Grant
    Filed: February 22, 2022
    Date of Patent: March 12, 2024
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sangyoung Park, Jongsu Oh, Hoseop Lee, Tetsuya Shigeta
  • Patent number: 11908386
    Abstract: A display apparatus, including a display panel which includes a pixel array including a plurality of pixels arranged in a plurality of row lines, and a plurality of sub-pixel circuits, wherein each pixel of the plurality of pixels includes a plurality of inorganic light emitting elements, and wherein each sub-pixel circuit of the plurality of sub-pixel circuits corresponds to an inorganic light emitting element of the plurality of light emitting elements; and a driver configured to drive the plurality of sub-pixel circuits so that the plurality of inorganic light emitting elements emit light a plurality of times in an order of the plurality of row lines based on an image data voltage corresponding to one image frame, wherein the each sub-pixel circuit includes a discharge transistor configured to remove a potential difference between both ends of a corresponding inorganic light emitting element based on a predetermined cycle.
    Type: Grant
    Filed: August 24, 2022
    Date of Patent: February 20, 2024
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jinho Kim, Seungran Park, Donggun Oh, Jongsu Oh
  • Patent number: 11837157
    Abstract: A display module includes: a module substrate; a plurality of pixels provided on the module substrate; and a plurality of micro-pixel controllers provided in spaces between the plurality of pixels and configured to supply a drive current to at least two pixels among the plurality of pixels, where each micro-pixel controller of the plurality of micro-pixel controllers includes a pixel circuit configured to, based on a first voltage and a second voltage being applied to the micro-pixel controller, control an amplitude of the drive current based on the first voltage and control a pulse width of the drive current based on the second voltage, and, based on the display module being in a power saving mode, the first voltage is adjusted to decrease a brightness of a pixel in a specified region, among the plurality of pixels.
    Type: Grant
    Filed: June 7, 2022
    Date of Patent: December 5, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jongsu Oh, Sangyoung Park
  • Patent number: 11837151
    Abstract: A display module includes a substrate; a plurality of pixels provided on a surface of the module substrate; a plurality of first micro-pixel controllers provided in spaces between the plurality of pixels, and a plurality of second micro-pixel controllers provided in a periphery area of the upper surface of the module substrate, wherein each of the plurality of first micro-pixel controllers controls two or more pixels of the plurality of pixels, and at least one function performed by the plurality of first micro-pixel controllers is different from at least one function performed by the plurality of second micro-pixel controllers.
    Type: Grant
    Filed: November 10, 2021
    Date of Patent: December 5, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sangyoung Park, Jongsu Oh, Hoseop Lee, Shigeta Tetsuya
  • Patent number: 11790836
    Abstract: A display module including a display panel comprising a plurality of pixels each comprising a plurality of sub pixels, the pixels being disposed on a plurality of row lines of the display panel and a driver. The driver being configured to apply a pulse width modulation (PWM) data voltage to the sub pixels in a sequential order of the row lines; and drive the display panel such that the sub pixels included in a plurality of consecutive row lines among the plurality of row lines emit light, in the sequential order of the row lines, for a time corresponding to the applied PWM data voltage.
    Type: Grant
    Filed: June 24, 2022
    Date of Patent: October 17, 2023
    Assignees: SAMSUNG ELECTRONICS CO., LTD., RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventors: Jinho Kim, Yong-Sang Kim, Daisuke Kawae, Junichi Yamashita, Takashige Fujimori, Donggun Oh, Jongsu Oh, Tetsuya Shigeta
  • Patent number: 11776465
    Abstract: A display module is provided. The display module includes a module substrate; a plurality of pixels provided on an upper surface of the module substrate; and a plurality of micro pixel controllers, each of the plurality of micro pixel controllers being configured to control at least two pixels among the plurality of pixels and being provided in a space between the at least two pixels on the upper surface of the module substrate, wherein at least one of the plurality of micro pixel controllers includes a slope waveform generator configured to generate a slope waveform used to control a brightness of each of the at least two pixels.
    Type: Grant
    Filed: June 3, 2022
    Date of Patent: October 3, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sangyoung Park, Daisuke Kawae, Junichi Yamashita, Jongsu Oh, Hoseop Lee, Tetsuya Shigeta
  • Patent number: 11715413
    Abstract: A display module includes a plurality of pixels; a substrate; a plurality of inorganic LEDs arranged on the substrate, each of the plurality of pixels including two or more inorganic LEDs among the plurality of inorganic LEDs; and a plurality of micro-pixel controllers two-dimensionally arranged in a first direction and a second direction on the substrate, each of the plurality of micro-pixel controllers being configured to control two or more pixels among the plurality of pixels. Each micro-pixel controller of the plurality of micro-pixel controllers is electrically connected to micro-pixel controllers adjacent thereto, and is configured to convert a voltage input from one of the micro-pixel controllers that is electrically connected thereto in a direction opposite to the first direction into a target voltage and supply the target voltage to another micro-pixel controller of the micro-pixel controllers that is electrically connected thereto in the first direction.
    Type: Grant
    Filed: February 18, 2022
    Date of Patent: August 1, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jongsu Oh, Daisuke Kawae, Junichi Yamashita, Sangyoung Park, Hoseop Lee, Tetsuya Shigeta
  • Publication number: 20230237958
    Abstract: In a display apparatus, a display panel includes a pixel array of pixels, each pixel disposed on one of a plurality of row lines and including a plurality of inorganic LEDs, and a sub pixel circuit corresponding to each of the plurality of LEDs. Each sub pixel circuit includes a PMOSFET driving transistor, and drives a corresponding LED based on an applied image data voltage. A sensing part senses a current through the driving transistor of at least one sub pixel circuit based on a specified voltage applied to the sub pixel circuit, and outputs corresponding sensing data. A correcting part corrects an image data voltage applied to the sub pixel circuit based on the sensing data. In each LED, an anode electrode is coupled to a common node to which a driving voltage is applied, and a cathode electrode is coupled to a source terminal of the driving transistor.
    Type: Application
    Filed: March 31, 2023
    Publication date: July 27, 2023
    Applicants: Samsung Electronics Co., Ltd., Research & Business Foundation Sungkyunkwan University
    Inventors: Jinho KIM, Yong-Sang Kim, Donggun Oh, Jongsu Oh, Eun Kyo Jung
  • Publication number: 20230230536
    Abstract: A display apparatus includes a display panel including: a pixel array in which pixels including a plurality of light-emitting elements are arranged in a plurality of row lines and sub-pixel circuits provided for each of the plurality of light-emitting elements and providing a driving current to the light-emitting elements. The display apparatus also includes a drive unit is configured to: set image data voltages to the sub-pixel circuits of the display panel in a row line order during a data setting period for each row line; and drive the sub-pixel circuits to provide the driving current to the light-emitting elements of the pixel array in the row line order based on a sweep signal sweeping from a first voltage to a second voltage and the set image data voltages during a light-emitting period for each row line.
    Type: Application
    Filed: March 7, 2023
    Publication date: July 20, 2023
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jinho KIM, Tetsuya SHIGETA, Jongsu OH
  • Publication number: 20230222963
    Abstract: A display device includes a display panel including a pixel array including a plurality of pixels and a plurality of sub-pixel circuits, each pixel of the plurality of pixels including a plurality of inorganic light emitting elements and a sub-pixel circuit of the plurality of sub-pixel circuits being provided for an inorganic light emitting element of the plurality of inorganic light emitting elements, a driver configured to set the image data voltage to sub-pixel circuits included in each of the plurality of row lines in an order of the row lines, a sensing unit configured to sense a current flowing in a driving transistor included in the sub-pixel circuit based on a specific voltage applied to the sub-pixel circuit, and output sensing data corresponding to the sensed current, and a correction unit configured to correct the image data voltage applied to the sub-pixel circuit based on the sensing data.
    Type: Application
    Filed: March 15, 2023
    Publication date: July 13, 2023
    Applicants: SAMSUNG ELECTRONICS CO., LTD., RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventors: Jinho KIM, Yong-Sang Kim, Donggun Oh, Jongsu Oh, Eun Kyo Jung
  • Publication number: 20230154394
    Abstract: A display device includes: a display panel including a pixel array, in which pixels that include a plurality of inorganic light-emitting devices of different colors are arranged in a matrix form, and a pixel circuit that is provided for each of the plurality of inorganic light-emitting devices, and the pixel circuit controls, on the basis of an applied image data voltage, the driving time and the magnitude of driving current provided to the inorganic light-emitting devices; a sensor which senses, on the basis of a voltage applied to the pixel circuit, a current flowing through a driving transistor included in the pixel circuit and which outputs sensing data corresponding to the sensed current; and a corrector which corrects, on the basis of the sensed data, the image data voltage applied to the pixel circuit.
    Type: Application
    Filed: January 18, 2023
    Publication date: May 18, 2023
    Applicants: SAMSUNG ELECTRONICS CO., LTD., RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventors: Jinho KIM, Yong-Sang KIM, Hoseop LEE, Donggun OH, Jongsu OH
  • Publication number: 20230101460
    Abstract: A display module includes a display panel in which a plurality of pixels each including a plurality of sub-pixels are disposed on a plurality of row lines; and a driver. The driver is configured to set a PWM data voltage to the plurality of sub-pixels included in the plurality of row lines in a row line sequence, apply a sweep signal, which is a voltage signal sweeping between two different voltages, to sub-pixels among the plurality of sub-pixels that are included in at least some consecutive row lines among the plurality of row lines in the row line sequence, and drive the display panel to cause the sub-pixels included in the at least some consecutive row lines to emit light based on the PWM data voltage in the row line sequence.
    Type: Application
    Filed: December 6, 2022
    Publication date: March 30, 2023
    Applicants: SAMSUNG ELECTRONICS CO., LTD., RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventors: Jinho KIM, Yong-Sang KIM, Donggun OH, Jongsu OH, Tetsuya SHIGETA
  • Publication number: 20230039449
    Abstract: In a display panel, pixels each including a plurality of sub-pixels are arranged in a matrix form, wherein each of the plurality of sub-pixels includes: an inorganic light-emitting element; a constant current generator circuit that provides a driving current to the inorganic light-emitting element on the basis of a constant current generator data voltage; and a PWM circuit for controlling the time for the driving current to flow through the inorganic light-emitting element on the basis of a PWM data voltage, wherein the constant current generator circuit includes a first driving transistor and the PWM circuit includes a second driving transistor, and wherein the constant current generator circuit or the PWM circuit comprises an internal compensation circuit that compensates for electrical characteristics of the first driving transistor and the second driving transistor.
    Type: Application
    Filed: October 20, 2022
    Publication date: February 9, 2023
    Applicants: SAMSUNG ELECTRONICS CO., LTD., RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventors: Jinho KIM, Yong-Sang KIM, Donggun OH, Jongsu OH
  • Publication number: 20230024912
    Abstract: A display module may include a plurality of pixels, wherein each of the plurality of pixels includes a plurality of subpixels of different colors that are disposed in a matrix form. Each of the plurality of subpixels includes an inorganic light emitting element, a constant current generator which provides a constant current to the inorganic light emitting element, and a pulse width modulation (PWM) circuit which includes a first depletion mode driving transistor, and controls a time during which the constant current flows through the inorganic light emitting element based on a PWM data voltage applied to a gate terminal of the first depletion mode driving transistor and a threshold voltage of the first depletion mode driving transistor.
    Type: Application
    Filed: September 30, 2022
    Publication date: January 26, 2023
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jinho KIM, Yong-Sang KIM, Sangmin SHIN, Donggun OH, Jongsu OH
  • Publication number: 20230012711
    Abstract: A display apparatus, including a display panel which includes a pixel array including a plurality of pixels arranged in a plurality of row lines, and a plurality of sub-pixel circuits, wherein each pixel of the plurality of pixels includes a plurality of inorganic light emitting elements, and wherein each sub-pixel circuit of the plurality of sub-pixel circuits corresponds to an inorganic light emitting element of the plurality of light emitting elements; and a driver configured to drive the plurality of sub-pixel circuits so that the plurality of inorganic light emitting elements emit light a plurality of times in an order of the plurality of row lines based on an image data voltage corresponding to one image frame, wherein the each sub-pixel circuit includes a discharge transistor configured to remove a potential difference between both ends of a corresponding inorganic light emitting element based on a predetermined cycle
    Type: Application
    Filed: August 24, 2022
    Publication date: January 19, 2023
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jinho KIM, Seungran PARK, Donggun OH, Jongsu OH
  • Publication number: 20230012927
    Abstract: Provided is a display apparatus including a modular display panel that includes a plurality of displays disposed in a matrix form and respectively including a display panel including a pixel array in which pixels including a plurality of inorganic light emitting elements are disposed in a plurality of row lines, sub-pixel circuits respectively corresponding to inorganic light emitting elements of the pixel array, a driver configured to drive the sub-pixel circuits, a sensor configured to sense a current flowing in a driving transistor included in the sub-pixel circuits and output sensing data corresponding to the sensed current, and a processor configured to correct the image data voltage applied to the sub-pixel circuits based on the sensing data, and a timing controller configured to provide a first start signal to a driver of a first display and a second start signal to a driver of a second display.
    Type: Application
    Filed: August 29, 2022
    Publication date: January 19, 2023
    Applicants: SAMSUNG ELECTRONICS CO., LTD., RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventors: Jinho KIM, Yong-Sang KIM, Donggun OH, Jongsu OH, Eun Ho KIM, Seungran PARK, Sara HONG
  • Publication number: 20230018546
    Abstract: Disclosed is a display apparatus. The display apparatus includes: display modules, each of which includes: a display panel composed of inorganic light emitting elements arranged in row lines, and sub-pixel circuits respectively corresponding to the inorganic light emitting elements; and a driver configured to drive the sub-pixel circuits in an order of the row lines based on a start signal provided from a timing controller. The timing controller is configured to: provide a first start signal to the driver of a first display module to control the inorganic light emitting elements to sequentially emit light from a first row line to a last row line, and provide a second start signal to the driver of a second display module to control the inorganic light emitting elements to sequentially emit light following an emission order of the inorganic light emitting elements included in the last row line of the first display module.
    Type: Application
    Filed: July 26, 2022
    Publication date: January 19, 2023
    Applicants: SAMSUNG ELECTRONICS CO., LTD., RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventors: Jinho KIM, Yong-Sang Kim, Donggun Oh, Jongsu Oh, Eun Ho Kim, Seungran Park, Sara Hong