Patents by Inventor Sun-Joon Hwang

Sun-Joon Hwang 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: 20240099886
    Abstract: The present invention provides a lens capsule incision device capable of applying differential power for lens capsule incision to a lens capsule incising part according to the contact states of electrodes of the lens capsule incising part with the lens capsule. The lens capsule incision device, which has a lens capsule incising part adapted to incise the lens capsule and having electrodes, includes: a measuring part for measuring an impedance in a state in which the electrodes of the lens capsule incising part come into contact with the lens capsule; a state determining part for determining a current contact state of the electrodes with the lens capsule, based on the impedance measured through the measuring part; and a power application part for applying differential power for lens capsule incision to the lens capsule incising part according to the current contact state determined by the state determining part.
    Type: Application
    Filed: December 7, 2023
    Publication date: March 28, 2024
    Inventors: Hong Jai LEE, Sun Joon HWANG
  • Patent number: 11925581
    Abstract: A capsulorhexis device is inserted into an incision site of a cornea to make an incision in an anterior capsule surrounding a crystalline lens. The capsulorhexis device includes a loop having elasticity and conductivity; a moving member having one end fixed and coupled to the loop; an insertion guide configured so that, while the incision is being made in the crystalline lens capsule, a front end thereof is inserted into the incision site of the cornea; and a housing having one end coupled to a rear end of the insertion guide, wherein the loop is housed in the housing and, to make the incision in the crystalline lens capsule, slides in the housing together with the moving member to pass through the insertion guide and be deployed into an anterior chamber of the eye.
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: March 12, 2024
    Assignee: TI INC.
    Inventors: Hong Jai Lee, Sung Hyuk Moon, Jae Wook Yang, Seung Jai Lee, Sun Joon Hwang, Hyun Jeong Kang
  • Patent number: 11462152
    Abstract: A display device includes: a pixel including a first transistor connected between a first node and a second node to generate a driving current; an emission driver supplying an emission control signal; a scan driver supplying first to fourth scan signals in a period in which the emission control signal is supplied; a data drive supplying a data signal; a power supply supplying a voltage of a first power source; and a timing controller controlling driving of the scan driver, the emission driver, the data driver, and the power supply The first scan signal controls a timing at which the voltage of the first power source is supplied to the first node or the second node. The power supply changes a level of the voltage of the first power source in one frame period.
    Type: Grant
    Filed: July 20, 2021
    Date of Patent: October 4, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Yun Seong Kim, Seung Kyu Lee, Sun Joon Hwang, Min Seong Son, Youn Woo Choe
  • Patent number: 11443687
    Abstract: A display device includes a pixel including a first transistor coupled between a first node and a second node, an emission driver supplying an emission control signal at a first frequency to an emission control line, a scan driver supplying first to fourth scan signals respectively to first to fourth scan lines, a data driver supplying a data signal to a data line, and a timing controller. The first scan signal controls a timing at which a voltage of a first power source is supplied to the first node or the second node, and the second scan signal controls a timing at which a first electrode of the first transistor and a gate electrode of the first transistor are coupled to each other. The scan driver controls a bias state of the first transistor by supplying, plural times, the first and second scan signals in a non-emission period.
    Type: Grant
    Filed: April 28, 2021
    Date of Patent: September 13, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Min Seong Son, Seung Kyu Lee, Sun Joon Hwang, Yun Seong Kim, Youn Woo Choe
  • Publication number: 20220192730
    Abstract: A surgical apparatus for making an incision in a living tissue according to the present disclosure includes a hand piece including a loop-type electrode part and a generator configured to transmit electrical energy to the electrode part, wherein the generator applies electric-field pulse waveforms made of two consecutive pulse groups to the electrode part, the two consecutive pulse groups include a first pulse group and a second pulse group, each pulse group includes mini-pulses, a peak voltage of the first pulse group is less than a peak voltage of the second pulse group, and a duration of the first pulse group is longer than a duration of the second pulse group.
    Type: Application
    Filed: December 3, 2020
    Publication date: June 23, 2022
    Inventors: Hong Jai LEE, Sung Hyuk MOON, Jae Wook YANG, Seung Jai LEE, Sun Joon HWANG, Hyun Jeong KANG
  • Publication number: 20220028329
    Abstract: A display device includes: a pixel including a first transistor connected between a first node and a second node to generate a driving current; an emission driver supplying an emission control signal; a scan driver supplying first to fourth scan signals in a period in which the emission control signal is supplied; a data drive supplying a data signal; a power supply supplying a voltage of a first power source; and a timing controller controlling driving of the scan driver, the emission driver, the data driver, and the power supply The first scan signal controls a timing at which the voltage of the first power source is supplied to the first node or the second node. The power supply changes a level of the voltage of the first power source in one frame period.
    Type: Application
    Filed: July 20, 2021
    Publication date: January 27, 2022
    Inventors: Yun Seong KIM, Seung Kyu LEE, Sun Joon HWANG, Min Seong SON, Youn Woo CHOE
  • Publication number: 20210375193
    Abstract: A display device includes a pixel including a first transistor coupled between a first node and a second node, an emission driver supplying an emission control signal at a first frequency to an emission control line, a scan driver supplying first to fourth scan signals respectively to first to fourth scan lines, a data driver supplying a data signal to a data line, and a timing controller. The first scan signal controls a timing at which a voltage of a first power source is supplied to the first node or the second node, and the second scan signal controls a timing at which a first electrode of the first transistor and a gate electrode of the first transistor are coupled to each other. The scan driver controls a bias state of the first transistor by supplying, plural times, the first and second scan signals in a non-emission period.
    Type: Application
    Filed: April 28, 2021
    Publication date: December 2, 2021
    Inventors: Min Seong SON, Seung Kyu LEE, Sun Joon HWANG, Yun Seong KIM, Youn Woo CHOE
  • Patent number: 11189233
    Abstract: A display device includes a display driver configured to drive pixels in correspondence with input image data, timing signals, and a brightness selection signal. The display driver includes a storage unit configured to store gamma data and a duty value for each of a plurality of sample brightness levels including a K-th sample brightness level, and a brightness controller, the display driver being configured to control the brightness of the display area according to the gamma data or the duty value or gamma data obtained by non-linearly interpolating gamma data of a (K?1)-th sample brightness level and the K-th sample brightness level, with respect to a tuning point brightness level. A light emission time of the pixels corresponding to the (K?1)-th sample brightness level is less than or equal to 10% shorter than the light emission time of the pixels corresponding to the K-th sample brightness level.
    Type: Grant
    Filed: April 17, 2020
    Date of Patent: November 30, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Min Seong Son, Hyun Jung Son, Jae Cheon Park, Seung Kyu Lee, Yoon Gyu Lee, Sun Joon Hwang
  • Patent number: 11150765
    Abstract: A display device is provided including a much sensor including a touch controller and a display panel overlapped by the touch sensor and configured to display an image. A display panel driver is, electrically connected to the display panel and configured to supply a driving signal to the display panel. The display panel driver is electrically connected to the touch controller and is configured to transmit a noise sensing signal to the touch controller.
    Type: Grant
    Filed: February 26, 2020
    Date of Patent: October 19, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Yoon Gyu Lee, Jae Cheon Park, Seung Kyu Lee, Sun Joon Hwang
  • Publication number: 20210212860
    Abstract: Provided herein is a capsulorhexis device (100) inserted into an incision site of a cornea to make an incision in an anterior capsule surrounding a crystalline lens. The capsulorhexis device includes a loop (110) having elasticity and conductivity, a moving member (120) having one end fixed and coupled to the loop (110), a head part (130) including a housing configured to store the loop (110) therein and an insertion guide (131) coupled to one end portion of the housing to communicate therewith, and a body (140) that is coupled to the other end portion of the housing and has a sliding button (141) provided to slide the loop (110) and the moving member (120) through the head part (130).
    Type: Application
    Filed: August 23, 2019
    Publication date: July 15, 2021
    Inventors: Hong Jai LEE, Sung Hyuk MOON, Jae Wook YANG, Seung Jai LEE, Sun Joon HWANG, Hyun Jeong KANG
  • Publication number: 20200335042
    Abstract: A display device a display driver configured to drive pixels in correspondence with input image data, timing signals, and a brightness selection signal. The display driver includes a storage unit configured to store gamma data and a duty value for each of a plurality of sample brightness levels including a K-th sample brightness level, and a brightness controller the display driver being configured to control the brightness of the display area according to the gamma data or the duty value or gamma data obtained by non-linearly interpolating gamma data of a (K?1)-th sample brightness level and the K-th sample brightness level, with respect to a tuning point brightness level. A light emission time of the pixels corresponding to the (K?1)-th sample brightness level is less than or equal to 10% shorter than the light emission time of the pixels corresponding to the K-th sample brightness level.
    Type: Application
    Filed: April 17, 2020
    Publication date: October 22, 2020
    Inventors: Min Seong SON, Hyun Jung SON, Jae Cheon PARK, Seung Kyu LEE, Yoon Gyu LEE, Sun Joon HWANG
  • Publication number: 20200301539
    Abstract: A display device is provided including a much sensor including a touch controller and a display panel overlapped by the touch sensor and configured to display an image. A display panel driver is, electrically connected to the display panel and configured to supply a driving signal to the display panel. The display panel driver is electrically connected to the touch controller and is configured to transmit a noise sensing signal to the touch controller.
    Type: Application
    Filed: February 26, 2020
    Publication date: September 24, 2020
    Inventors: Yoon Gyu Lee, Jae Cheon Park, Seung Kyu Lee, Sun Joon Hwang
  • Patent number: 10714021
    Abstract: A voltage value setting device including a test control unit which provides a temporary black grayscale voltage value and a temporary transistor off voltage value to a display device, and a luminance measurement unit which measures a luminance of a black grayscale that the display device displays based on the temporary black grayscale voltage value and the temporary transistor off voltage value. When the measured luminance of the black grayscale is lower than a black luminance threshold, the test control unit provides the display device with a black grayscale voltage value, set by adding a first margin value to the temporary black grayscale voltage value, and a transistor off voltage value, set by adding a second margin value to the temporary transistor off voltage value.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: July 14, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Si Beak Pyo, Sun Joon Hwang
  • Patent number: 10699615
    Abstract: An application processor includes a scaling rate calculator that determines a scaling rate of first image data based on stress data that includes pixel degradation information for each pixel; and an image processor that generates second image data by decreasing a maximum grayscale value of the first image data based on the scaling rate, where the first image data is received from an external component.
    Type: Grant
    Filed: July 23, 2019
    Date of Patent: June 30, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dong-Hak Pyo, Cheol-Hwan Eom, Sang-Myeon Han, Sun-Joon Hwang
  • Publication number: 20190347971
    Abstract: An application processor includes a scaling rate calculator that determines a scaling rate of first image data based on stress data that includes pixel degradation information for each pixel; and an image processor that generates second image data by decreasing a maximum grayscale value of the first image data based on the scaling rate, where the first image data is received from an external component.
    Type: Application
    Filed: July 23, 2019
    Publication date: November 14, 2019
    Inventors: DONG-HAK PYO, CHEOL-HWAN EOM, SANG-MYEON HAN, SUN-JOON HWANG
  • Publication number: 20190311682
    Abstract: A voltage value setting device including a test control unit which provides a temporary black grayscale voltage value and a temporary transistor off voltage value to a display device, and a luminance measurement unit which measures a luminance of a black grayscale that the display device displays based on the temporary black grayscale voltage value and the temporary transistor off voltage value. When the measured luminance of the black grayscale is lower than a black luminance threshold, the test control unit provides the display device with a black grayscale voltage value, set by adding a first margin value to the temporary black grayscale voltage value, and a transistor off voltage value, set by adding a second margin value to the temporary transistor off voltage value.
    Type: Application
    Filed: March 8, 2019
    Publication date: October 10, 2019
    Inventors: Si Beak PYO, Sun Joon HWANG
  • Patent number: 10360828
    Abstract: An application processor includes a scaling rate calculator that determines a scaling rate of first image data based on stress data that includes pixel degradation information for each pixel; and an image processor that generates second image data by decreasing a maximum grayscale value of the first image data based on the scaling rate, where the first image data is received from an external component.
    Type: Grant
    Filed: January 5, 2017
    Date of Patent: July 23, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dong-Hak Pyo, Cheol-Hwan Eom, Sang-Myeon Han, Sun-Joon Hwang
  • Patent number: 10276090
    Abstract: An organic light emitting display device includes: a display panel including a plurality of pixels; a controller configured to correct input image signals supplied from the outside according to an amount of voltage drop; a data driver configured to supply data signals corresponding to the corrected image signals; and a scan driver configured to supply scan signals to scan lines. The controller includes: a load factor calculator configured to calculate a load factor of a panel; a horizontal block load factor calculator configured to calculate a driving current of a plurality of horizontal blocks formed by dividing the panel according to the scan lines; a voltage drop amount calculator configured to calculate the amount of the voltage drop based on the driving current; and a lookup table generator configured to generate a voltage drop correction lookup table based on the amount of the voltage drop.
    Type: Grant
    Filed: November 18, 2014
    Date of Patent: April 30, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hee-Sook Park, Ji-Hye Eom, Sun-Joon Hwang
  • Publication number: 20170206819
    Abstract: An application processor includes a scaling rate calculator that determines a scaling rate of first image data based on stress data that includes pixel degradation information for each pixel; and an image processor that generates second image data by decreasing a maximum grayscale value of the first image data based on the scaling rate, where the first image data is received from an external component.
    Type: Application
    Filed: January 5, 2017
    Publication date: July 20, 2017
    Inventors: DONG-HAK PYO, Cheol-Hwan Eom, Sang-Myeon Han, Sun-Joon Hwang
  • Publication number: 20150255019
    Abstract: An organic light emitting display device includes: a display panel including a plurality of pixels; a controller configured to correct input image signals supplied from the outside according to an amount of voltage drop; a data driver configured to supply data signals corresponding to the corrected image signals; and a scan driver configured to supply scan signals to scan lines. The controller includes: a load factor calculator configured to calculate a load factor of a panel; a horizontal block load factor calculator configured to calculate a driving current of a plurality of horizontal blocks formed by dividing the panel according to the scan lines; a voltage drop amount calculator configured to calculate the amount of the voltage drop based on the driving current; and a lookup table generator configured to generate a voltage drop correction lookup table based on the amount of the voltage drop.
    Type: Application
    Filed: November 18, 2014
    Publication date: September 10, 2015
    Inventors: Hee-Sook Park, Ji-Hye Eom, Sun-Joon Hwang