Patents by Inventor Myeong-su Kim

Myeong-su 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).

  • Publication number: 20240113268
    Abstract: A display device includes a first electrode, an outer electrode surrounding the first electrode, a bank overlapping the outer electrode in a plan view, the bank including an opening that exposes the first electrode, a light emitting element disposed on the first electrode and in the opening of the bank, and a second electrode disposed on the light emitting element. The outer electrode may be electrically disconnected from the first electrode upon a bad contact between a light emitting member and the outer electrode. As a result, defective pixels can be repaired.
    Type: Application
    Filed: May 30, 2023
    Publication date: April 4, 2024
    Applicant: Samsung Display Co., LTD.
    Inventors: Seul Ki KIM, Tae Jin KONG, Myeong Hee KIM, Ji Eun PARK, Myeong Su SO
  • Publication number: 20240105144
    Abstract: A display device includes a display panel including a plurality of pixels, a scan driving unit configured to provide a scan signal to the pixels, a data driving unit configured to provide a data signal to the pixels, and a controller configured to provide driving frequency information to a processor, which transfers image data with a driving frequency determined based on the driving frequency information to the display device, to receive the image data with the driving frequency from the processor, and to control the scan driving unit and the data driving unit to drive the display panel with the driving frequency.
    Type: Application
    Filed: December 5, 2023
    Publication date: March 28, 2024
    Inventors: Myeong-Su KIM, Su-Hyeong PARK, Ho-Yong JUNG, Jae-Ho CHOI
  • Publication number: 20240072218
    Abstract: The present disclosure provides a display device and a method for fabricating the same. According to one or more embodiments, a display device includes a substrate, pixel electrodes above the substrate, light-emitting elements above the pixel electrodes, extending in a thickness direction of the substrate, and having a polyhedral shape in the thickness direction, a width of a middle portion of the polyhedral shape being greater than a width of an upper portion of the polyhedral shape and greater than a width of a lower portion of the polyhedral shape, and a common electrode above the light-emitting elements.
    Type: Application
    Filed: May 2, 2023
    Publication date: February 29, 2024
    Inventors: Tae Jin KONG, Myeong Hee KIM, Seul Ki KIM, Ji Eun PARK, Myeong Su SO
  • Patent number: 11869458
    Abstract: A display device includes a display panel including a plurality of pixels, a scan driving unit configured to provide a scan signal to the pixels, a data driving unit configured to provide a data signal to the pixels, and a controller configured to provide driving frequency information to a processor, which transfers image data with a driving frequency determined based on the driving frequency information to the display device, to receive the image data with the driving frequency from the processor, and to control the scan driving unit and the data driving unit to drive the display panel with the driving frequency.
    Type: Grant
    Filed: March 7, 2022
    Date of Patent: January 9, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Myeong-Su Kim, Su-Hyeong Park, Ho-Yong Jung, Jae-Ho Choi
  • Publication number: 20230378045
    Abstract: A flexible circuit film includes the following elements: a base film; a first power input terminal, a second power input terminal, a first power output terminal, and a second power output terminal each disposed on the base film; an integrated circuit chip disposed between the first power input terminal and the first power output terminal and overlapping the base film; first power wiring disposed on the base film, connecting the first power input terminal to the first power output terminal, and including a first connection part; and second power wiring disposed on the base film, connecting the second power input terminal to the second power output terminal, and including a second connection part. The first connection part and the second connection part are disposed between the base film and the integrated circuit chip, overlap the integrated circuit chip, and are spaced from each other.
    Type: Application
    Filed: August 3, 2023
    Publication date: November 23, 2023
    Inventors: BoYeon KIM, Whee-Won LEE, Myeong Su KIM, Sang Hyun LEE
  • Publication number: 20230260463
    Abstract: A gate driver includes a first shift register connected to gate lines, and configured to supply a gate signal to the gate lines in response to a first start pulse, and a second shift register connected to the gate lines and sensing control lines, and configured to supply the gate signal and a sensing signal to the gate lines and the sensing control lines in response to a second start pulse, in which the second shift register is configured to supply the second start pulse at different times in sequential frames.
    Type: Application
    Filed: April 28, 2023
    Publication date: August 17, 2023
    Inventors: Bo Yeon KIM, Myeong Su Kim, Sang Hyun Lee
  • Patent number: 11721619
    Abstract: A flexible circuit film includes the following elements: a base film; a first power input terminal, a second power input terminal, a first power output terminal, and a second power output terminal each disposed on the base film; an integrated circuit chip disposed between the first power input terminal and the first power output terminal and overlapping the base film; first power wiring disposed on the base film, connecting the first power input terminal to the first power output terminal, and including a first connection part; and second power wiring disposed on the base film, connecting the second power input terminal to the second power output terminal, and including a second connection part. The first connection part and the second connection part are disposed between the base film and the integrated circuit chip, overlap the integrated circuit chip, and are spaced from each other.
    Type: Grant
    Filed: September 16, 2020
    Date of Patent: August 8, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: BoYeon Kim, Whee-Won Lee, Myeong Su Kim, Sang Hyun Lee
  • Patent number: 11670236
    Abstract: A gate driver includes a first shift register connected to gate lines, and configured to supply a gate signal to the gate lines in response to a first start pulse, and a second shift register connected to the gate lines and sensing control lines, and configured to supply the gate signal and a sensing signal to the gate lines and the sensing control lines in response to a second start pulse, in which the second shift register is configured to supply the second start pulse at different times in sequential frames.
    Type: Grant
    Filed: August 25, 2019
    Date of Patent: June 6, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Bo Yeon Kim, Myeong Su Kim, Sang Hyun Lee
  • Patent number: 11620927
    Abstract: A display device includes a scale factor provider, a grayscale converter, and pixels. The scale factor provider calculates an n-th scale factor based on n-th input grayscales received during an n-th frame period. The grayscale converter calculates (n+p)th output grayscales by applying the n-th scale factor to (n+p)th input grayscales received during an (n+p)th frame period in a first mode. The pixels output light to display an image based on the (n+p)th output grayscales, where n is an integer greater than 0 and p is an integer greater than 1.
    Type: Grant
    Filed: August 30, 2021
    Date of Patent: April 4, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Si Duk Sung, Dae Sik Lee, Sang Hyun Lee, Myeong Su Kim
  • Patent number: 11574591
    Abstract: A display device includes pixels connected to scan lines, sensing lines, readout lines, and data lines; a scan driver including stages to supply a scan signal and a sensing signal to the scan lines and the sensing lines; a data driver which supplies a data signal to the data lines; a timing controller which divides one frame into an active period including a scan period in which the data signal is supplied to the data lines and a display period in which the pixels emit light in response to the data signal, and a blank period including a sensing period in which electrical characteristics of the pixels are detected and a reset period in which the stages are reset; and a compensator which generates a compensation value for compensating for deterioration of the pixels based on sensing values provided from the readout lines during the sensing period.
    Type: Grant
    Filed: July 20, 2021
    Date of Patent: February 7, 2023
    Inventors: Jae Hoon Lee, Myeong Su Kim, Jae Woo Ryu
  • Patent number: 11514864
    Abstract: A display device includes a display panel including a plurality of pixels connected to data lines and sensing lines, a data driver including a plurality of buffer amplifiers which supplies a first sensing voltage to the data lines during a first sensing period and a sensor which receives a first sensing signal from the pixels through the sensing lines during the first sensing period, and a global amplifier which supplies a second sensing voltage to the data lines during a second sensing period different from the first sensing period. The sensor receives a second sensing signal corresponding to the second sensing voltage from the pixels through the sensing lines during the second sensing period, and generates compensation data based on a difference value between the first sensing signal and the second sensing signal.
    Type: Grant
    Filed: February 25, 2021
    Date of Patent: November 29, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Won Tae Kim, Myeong Su Kim, Bo Yeon Kim, Jae Han Lee, Whee Won Lee
  • Patent number: 11501691
    Abstract: A display device may include a timing controller, a level shifter, a gate driver, and a display panel. The timing controller may generate a first on-clock signal, a first off-clock signal, and a first output control signal. The level shifter may generate a first-type gate clock signal. A rising edge of the first-type gate clock signal and a falling edge of the first-type gate clock signal may be respectively synchronized with a rising edge of the first on-clock signal and a falling edge of the first off-clock signal. The gate driver may output first-type gate signals based on the first-type gate clock signal. The display panel may include pixels. The pixels may emit lights in response to the first-type gate signals. The level shifter may partially block a pulse of the first-type gate clock signal based on the first output control signal to generate sub-pulses.
    Type: Grant
    Filed: June 30, 2020
    Date of Patent: November 15, 2022
    Inventors: Si Duk Sung, Sang Hyun Lee, Myeong Su Kim
  • Publication number: 20220277680
    Abstract: A display device includes a scale factor provider, a grayscale converter, and pixels. The scale factor provider calculates an n-th scale factor based on n-th input grayscales received during an n-th frame period. The grayscale converter calculates (n+p)th output grayscales by applying the n-th scale factor to (n+p)th input grayscales received during an (n+p)th frame period in a first mode. The pixels output light to display an image based on the (n+p)th output grayscales, where n is an integer greater than 0 and p is an integer greater than 1.
    Type: Application
    Filed: August 30, 2021
    Publication date: September 1, 2022
    Inventors: SI DUK SUNG, Dae Sik LEE, Sang Hyun LEE, Myeong Su KIM
  • Patent number: 11386853
    Abstract: A display device includes: a display panel including a plurality of pixels; a source driver for outputting a target initialization voltage in an analog format to the pixels through sensing lines; and a timing controller for providing the source driver with a data control signal including packet information associated with the target initialization voltage. The packet information is in a digital format. The source driver includes a digital-analog converter which generates the target initialization voltage in the analog format, based on the packet information.
    Type: Grant
    Filed: March 29, 2021
    Date of Patent: July 12, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Whee Won Lee, Myeong Su Kim, Bo Yeon Kim, Won Tae Kim, Jae Han Lee
  • Publication number: 20220189434
    Abstract: A display device includes a display panel including a plurality of pixels, a scan driving unit configured to provide a scan signal to the pixels, a data driving unit configured to provide a data signal to the pixels, and a controller configured to provide driving frequency information to a processor, which transfers image data with a driving frequency determined based on the driving frequency information to the display device, to receive the image data with the driving frequency from the processor, and to control the scan driving unit and the data driving unit to drive the display panel with the driving frequency.
    Type: Application
    Filed: March 7, 2022
    Publication date: June 16, 2022
    Inventors: Myeong-Su KIM, Su-Hyeong PARK, Ho-Yong JUNG, Jae-Ho CHOI
  • Publication number: 20220108656
    Abstract: A display device includes pixels connected to scan lines, sensing lines, readout lines, and data lines; a scan driver including stages to supply a scan signal and a sensing signal to the scan lines and the sensing lines; a data driver which supplies a data signal to the data lines; a timing controller which divides one frame into an active period including a scan period in which the data signal is supplied to the data lines and a display period in which the pixels emit light in response to the data signal, and a blank period including a sensing period in which electrical characteristics of the pixels are detected and a reset period in which the stages are reset; and a compensator which generates a compensation value for compensating for deterioration of the pixels based on sensing values provided from the readout lines during the sensing period.
    Type: Application
    Filed: July 20, 2021
    Publication date: April 7, 2022
    Inventors: Jae Hoon LEE, Myeong Su KIM, Jae Woo RYU
  • Publication number: 20220101799
    Abstract: A display device includes: a display panel including a plurality of pixels; a source driver for outputting a target initialization voltage in an analog format to the pixels through sensing lines; and a timing controller for providing the source driver with a data control signal including packet information associated with the target initialization voltage. The packet information is in a digital format. The source driver includes a digital-analog converter which generates the target initialization voltage in the analog format, based on the packet information.
    Type: Application
    Filed: March 29, 2021
    Publication date: March 31, 2022
    Inventors: Whee Won LEE, Myeong Su KIM, Bo Yeon KIM, Won Tae KIM, Jae Han LEE
  • Patent number: 11288996
    Abstract: A display device includes a display unit including a plurality of pixels, a scan driver applying a scan signal to a plurality of scan lines, a data driver applying a data signal to a plurality of data lines, and a power supply unit supplying a driving voltage to at least one among the display unit, the scan driver, and the data driver. The power supply unit includes an inductor connected between an input terminal to which an input voltage is input and a driving voltage output terminal to which the driving voltage is output, a switch connected between the inductor and a ground, and a switch controller outputting a first ramp pulse having a first frequency at a first load of the display device and outputting a second ramp pulse having a second frequency at a second load of the display device.
    Type: Grant
    Filed: March 15, 2021
    Date of Patent: March 29, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sang Hyun Lee, Myeong Su Kim, Bo Yeon Kim
  • Patent number: 11270667
    Abstract: A display device includes a display panel including a plurality of pixels, a scan driving unit configured to provide a scan signal to the pixels, a data driving unit configured to provide a data signal to the pixels, and a controller configured to provide driving frequency information to a processor, which transfers image data with a driving frequency determined based on the driving frequency information to the display device, to receive the image data with the driving frequency from the processor, and to control the scan driving unit and the data driving unit to drive the display panel with the driving frequency.
    Type: Grant
    Filed: January 13, 2020
    Date of Patent: March 8, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Myeong-Su Kim, Su-Hyeong Park, Ho-Yong Jung, Jae-Ho Choi
  • Publication number: 20220020334
    Abstract: A display device includes a display panel including a plurality of pixels connected to data lines and sensing lines, a data driver including a plurality of buffer amplifiers which supplies a first sensing voltage to the data lines during a first sensing period and a sensor which receives a first sensing signal from the pixels through the sensing lines during the first sensing period, and a global amplifier which supplies a second sensing voltage to the data lines during a second sensing period different from the first sensing period. The sensor receives a second sensing signal corresponding to the second sensing voltage from the pixels through the sensing lines during the second sensing period, and generates compensation data based on a difference value between the first sensing signal and the second sensing signal.
    Type: Application
    Filed: February 25, 2021
    Publication date: January 20, 2022
    Inventors: Won Tae KIM, Myeong Su KIM, Bo Yeon KIM, Jae Han LEE, Whee Won LEE