Patents by Inventor Sung Uk SEO

Sung Uk SEO 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: 20240212582
    Abstract: A display device includes first sub-pixels, each of the first sub-pixels including a first light emitting element of a first color, and at least one of the first sub-pixels includes a first circuit unit configured to control a supply period of a driving current in response to a first data signal supplied from a first data line, a second circuit unit configured to supply the driving current to the first light emitting element in response to a second data signal supplied from a second data line, and a sensing transistor connected between a first electrode of the first light emitting element and the second data line, and having a gate electrode connected to a sensing line.
    Type: Application
    Filed: September 25, 2023
    Publication date: June 27, 2024
    Inventors: Jung Hwan HWANG, Min Chul SHIN, Sung Hwan KIM, Ji Youn SEO, Kye Uk LEE
  • Publication number: 20240194127
    Abstract: Provided are a display device and a tiled display comprising the same. The display device includes PWM data lines for respectively receiving PWM data voltages, first to third data lines for respectively receiving first to third data voltages, sub-pixels respectively connected to the PWM data lines, respectively connected to the first to third data lines, and respectively including at least one light-emitting element, a global power supply line for receiving a global power supply voltage, and a first demultiplexer between the PWM data lines and the global power supply line, wherein the PWM data voltages have grayscale voltages from a black grayscale voltage to a white grayscale voltage, the black grayscale voltage being greater than or equal to the global power supply voltage.
    Type: Application
    Filed: October 13, 2023
    Publication date: June 13, 2024
    Inventors: Sang Jin JEON, Min Chul SHIN, Jung Hwan HWANG, Sung Hwan KIM, Ji Youn SEO, Kye Uk LEE
  • Publication number: 20240179433
    Abstract: Disclosed is an image sensing device including a first clock distributor suitable for receiving a first input clock signal through a first input terminal, and outputting a plurality of first output clock signals through a plurality of first output terminals, and a first conductive line coupled in common to the plurality of first output terminals.
    Type: Application
    Filed: February 5, 2024
    Publication date: May 30, 2024
    Inventors: Jeong Eun SONG, Min Seok SHIN, Yu Jin PARK, Sung Uk SEO, Sun Young LEE
  • Patent number: 11950008
    Abstract: Disclosed is an image sensing device including a first clock distributor suitable for receiving a first input dock signal through a first input terminal, and outputting a plurality of first output clock signals through a plurality of first output terminals, and a first conductive line coupled in common to the plurality of first output terminals.
    Type: Grant
    Filed: April 5, 2021
    Date of Patent: April 2, 2024
    Assignee: SK hynix Inc.
    Inventors: Jeong Eun Song, Min Seok Shin, Yu Jin Park, Sung Uk Seo, Sun Young Lee
  • Patent number: 11743617
    Abstract: An image sensor includes: a pixel of a first tab; a pixel of a second tab; an operation amplifier suitable for comparing, in a comparison operation, a pixel signal of the first tab and a pixel signal of the second tab with each other to produce a comparison result, receiving, in an auto-zeroing operation, a ramp voltage and a selected pixel signal which is selected based on the comparison result between the pixel signal of the first tab and the pixel signal of the second tab, and receiving, in an analog-to-digital conversion operation, the ramp voltage and an unselected pixel signal which is not selected from the pixel signal of the first tab and the second pixel signal of the second tab; and a counter circuit suitable for generating a digital code based on an output of the operation amplifier.
    Type: Grant
    Filed: June 30, 2021
    Date of Patent: August 29, 2023
    Assignee: SK hynix Inc.
    Inventors: Hoo Chan Lee, Min Seok Shin, Sung Uk Seo, Jeong Eun Song
  • Patent number: 11647308
    Abstract: An analog-to-digital converting circuit includes: an analog-to-digital converter suitable for performing an analog-to-digital conversion on pixel signals of a plurality of pixels provided in a pixel array; a ramp signal generator suitable for providing a ramp signal to the analog-to-digital converter; and an auto-zero controller suitable for providing a reference voltage to the analog-to-digital converter to perform an auto-zeroing operation by using a row pixel for which a readout operation is performed by the analog-to-digital converter.
    Type: Grant
    Filed: January 12, 2022
    Date of Patent: May 9, 2023
    Assignee: SK hynix Inc.
    Inventors: Jin Uk Jeon, Oh Jun Kwon, Jin Seon Kim, Hak Soon Kim, Han Sang Kim, Kang Bong Seo, Sung Uk Seo, Jeong Eun Song, Min Seok Shin, Sun Young Lee, Eun Chang Lee, Hoo Chan Lee
  • Publication number: 20220368846
    Abstract: An analog-to-digital converting circuit includes: an analog-to-digital converter suitable for performing an analog-to-digital conversion on pixel signals of a plurality of pixels provided in a pixel array; a ramp signal generator suitable for providing a ramp signal to the analog-to-digital converter; and an auto-zero controller suitable for providing a reference voltage to the analog-to-digital converter to perform an auto-zeroing operation by using a row pixel for which a readout operation is performed by the analog-to-digital converter.
    Type: Application
    Filed: January 12, 2022
    Publication date: November 17, 2022
    Inventors: Jin Uk JEON, Oh Jun KWON, Jin Seon KIM, Hak Soon KIM, Han Sang KIM, Kang Bong SEO, Sung Uk SEO, Jeong Eun SONG, Min Seok SHIN, Sun Young LEE, Eun Chang LEE, Hoo Chan LEE
  • Patent number: 11502697
    Abstract: An analog-to-digital converter circuit includes: a first operation amplifier suitable for comparing a ramp voltage and a voltage to be converted so as to produce an amplification result and outputting the amplification result; a second operation amplifier suitable for comparing the amplification result transferred to a first input terminal with a reference voltage transferred to a second input terminal so as to produce a comparison result and outputting the comparison result; a leakage current measurer suitable for measuring a leakage current to the first input terminal; and a leakage current generator suitable for causing a current of the same amount as that of the leakage current measured by the leakage current measurer to flow to the second input terminal.
    Type: Grant
    Filed: January 7, 2021
    Date of Patent: November 15, 2022
    Assignee: SK hynix Inc.
    Inventors: Sung Uk Seo, Han Sang Kim, Yu Jin Park, Jeong Eun Song, Min Seok Shin
  • Patent number: 11477408
    Abstract: An image sensor including a pixel of a first tap. a pixel of a second tap. an operational amplifier configured to perform an auto zeroing operation with a pixel signal of the pixel of the second tap applied, and perform an operation for comparison between a ramp voltage and a signal output from the pixel of the first tap, with a pixel signal of the pixel of the first tap applied, and a counter circuit configured to generate a digital code in response to an output of the operational amplifier.
    Type: Grant
    Filed: April 8, 2021
    Date of Patent: October 18, 2022
    Assignee: SK hynix Inc.
    Inventors: Jeong Eun Song, Yu Jin Park, Sung Uk Seo, Min Seok Shin
  • Publication number: 20220329746
    Abstract: An image sensing device includes a first sampling circuit suitable for sampling a reference ramp signal as a ramp signal; a switching circuit suitable for sequentially outputting first and second pixel signals to a common node based on first and second control signals; a second sampling circuit suitable for sampling the first and second pixel signals, which are sequentially outputted through the common node, as a measurement signal; a comparison circuit suitable for comparing the ramp signal with the measurement signal and generating a comparison signal corresponding to a comparison result; and a count circuit suitable for generating a count signal, which corresponds to a voltage level of the measurement signal, based on the comparison signal and a clock signal.
    Type: Application
    Filed: November 26, 2021
    Publication date: October 13, 2022
    Inventors: Jeong Eun SONG, Oh Jun KWON, Yu Jin PARK, Sung Uk SEO, Min Seok SHIN, Sun Young LEE
  • Publication number: 20220279139
    Abstract: An image sensor includes: a normal pixel which outputs pixel data; a plurality of dummy pixels each of which outputs a reset signal; and an analog-to-digital conversion circuit suitable for analog-to-digital converting the pixel data based on the pixel data and an average value of the reset signals.
    Type: Application
    Filed: July 7, 2021
    Publication date: September 1, 2022
    Inventors: Sung Uk SEO, Min Seok SHIN, Oh Jun KWON, Han Sang KIM, Kang Bong SEO, Jeong Eun SONG
  • Publication number: 20220256107
    Abstract: An image sensor includes: a pixel of a first tab; a pixel of a second tab; an operation amplifier suitable for comparing, in a comparison operation, a pixel signal of the first tab and a pixel signal of the second tab with each other to produce a comparison result, receiving, in an auto-zeroing operation, a ramp voltage and a selected pixel signal which is selected based on the comparison result between the pixel signal of the first tab and the pixel signal of the second tab, and receiving, in an analog-to-digital conversion operation, the ramp voltage and an unselected pixel signal which is not selected from the pixel signal of the first tab and the second pixel signal of the second tab; and a counter circuit suitable for generating a digital code based on an output of the operation amplifier.
    Type: Application
    Filed: June 30, 2021
    Publication date: August 11, 2022
    Inventors: Hoo Chan LEE, Min Seok SHIN, Sung Uk SEO, Jeong Eun SONG
  • Publication number: 20220232185
    Abstract: An image sensing device includes a pixel array including a unit pixel suitable to transfer and store charges in response to a transfer signal and read out a pixel signal corresponding to the stored charges in response to a selection signal provided to the unit pixel; a signal converter suitable for comparing the pixel signal with a ramp signal based on a switch signal to generate a distance information signal; and a signal controller suitable for generating the switch signal for initializing the signal converter in a temporal section where the pixel signal is read out.
    Type: Application
    Filed: July 7, 2021
    Publication date: July 21, 2022
    Inventors: Jeong Eun SONG, Yu Jin PARK, Sung Uk SEO, Min Seok SHIN, Hoo Chan LEE
  • Patent number: 11394915
    Abstract: Disclosed are an image sensing device and an operating method thereof, and the image sensing device may include a charge sensing element suitable for generating first charges, which correspond to incident light, based on a photo control signal; a reset element suitable for resetting the charge sensing element based on a reset signal; a floating diffusion node suitable for accumulating the first charges; a compensation element suitable for selectively supplying a compensation current to the floating diffusion node based on a compensation control signal; and a selection element suitable for outputting a pixel signal, which corresponds to a voltage on the floating diffusion node, to a readout line based on a selection signal.
    Type: Grant
    Filed: September 16, 2020
    Date of Patent: July 19, 2022
    Assignee: SK hynix Inc.
    Inventors: Yu Jin Park, Nam Ryeol Kim, Kang Bong Seo, Sung Uk Seo, Jung Soon Shin
  • Publication number: 20220124276
    Abstract: Disclosed is an image sensing device including a first clock distributor suitable for receiving a first input dock signal through a first input terminal, and outputting a plurality of first output clock signals through a plurality of first output terminals, and a first conductive line coupled in common to the plurality of first output terminals.
    Type: Application
    Filed: April 5, 2021
    Publication date: April 21, 2022
    Inventors: Jeong Eun SONG, Min Seok SHIN, Yu Jin PARK, Sung Uk SEO, Sun Young LEE
  • Publication number: 20220116563
    Abstract: An image sensor including a pixel of a first tap. a pixel of a second tap. an operational amplifier configured to perform an auto zeroing operation with a pixel signal of the pixel of the second tap applied, and perform an operation for comparison between a ramp voltage and a signal output from the pixel of the first tap, with a pixel signal of the pixel of the first tap applied, and a counter circuit configured to generate a digital code in response to an output of the operational amplifier.
    Type: Application
    Filed: April 8, 2021
    Publication date: April 14, 2022
    Inventors: Jeong Eun SONG, Yu Jin PARK, Sung Uk SEO, Min Seok SHIN
  • Publication number: 20220077870
    Abstract: An analog-to-digital converter circuit includes: a first operation amplifier suitable for comparing a ramp voltage and a voltage to be converted so as to produce an amplification result and outputting the amplification result; a second operation amplifier suitable for comparing the amplification result transferred to a first input terminal with a reference voltage transferred to a second input terminal so as to produce a comparison result and outputting the comparison result; a leakage current measurer suitable for measuring a leakage current to the first input terminal; and a leakage current generator suitable for causing a current of the same amount as that of the leakage current measured by the leakage current measurer to flow to the second input terminal.
    Type: Application
    Filed: January 7, 2021
    Publication date: March 10, 2022
    Inventors: Sung Uk SEO, Han Sang KIM, Yu Jin PARK, Jeong Eun SONG, Min Seok SHIN
  • Publication number: 20210314511
    Abstract: Disclosed are an image sensing device and an operating method thereof, and the image sensing device may include a charge sensing element suitable for generating first charges, which correspond to incident light, based on a photo control signal; a reset element suitable for resetting the charge sensing element based on a reset signal; a floating diffusion node suitable for accumulating the first charges; a compensation element suitable for selectively supplying a compensation current to the floating diffusion node based on a compensation control signal; and a selection element suitable for outputting a pixel signal, which corresponds to a voltage on the floating diffusion node, to a readout line based on a selection signal.
    Type: Application
    Filed: September 16, 2020
    Publication date: October 7, 2021
    Inventors: Yu Jin PARK, Nam Ryeol KIM, Kang Bong SEO, Sung Uk SEO, Jung Soon SHIN