Patents by Inventor Jong-Woong Park

Jong-Woong Park 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: 20230138751
    Abstract: A method of driving a display panel that includes first and second display-regions includes: determining maximum luminance data among first data including first red data, first green data, and first blue data for the first display-region, calculating a threshold gray-level based on a luminance gain, a gray-level of the maximum luminance data, and a gamma value for the display panel, selecting a smaller value between the threshold gray-level and a maximum gray-level as a gain determination gray-level, calculating a compensation gain obtained by dividing the gain determination gray-level by the gray-level of the maximum luminance data, generating first compensated data by applying the compensation gain to the first data, displaying a first-image in the first display-region based on the first compensated data, and displaying a second-image in the second display-region based on second data including second red data, second green data, and second blue data for the second display-region.
    Type: Application
    Filed: December 27, 2022
    Publication date: May 4, 2023
    Inventor: Jong-Woong PARK
  • Patent number: 11617896
    Abstract: A medical wound healing accelerator having a body that is removably attached on a fixing pin, of an external fixator for fractures, that is insertable into a bone through skin is provided. The device can further include a plurality of light source units arranged on one surface of the body to emit light and provide a beneficial effect to the wound, and a controller electrically connected to the light source units. An osteomyelitis treatment device having an insert that is insertable into an osteomyelitis part in a human body, and a plurality of light-emitting members provided to the insert to emit light is also provided. The plurality of light-emitting members can be spaced apart from each other, and a part of the insert can be cut or bent to correspond to the shape of the osteomyelitis part.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: April 4, 2023
    Assignee: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Jong Woong Park, Tae Jin Song
  • Patent number: 11607474
    Abstract: The present invention relates to a method for preparing of a nerve conduit using bio-printing technology and a nerve conduit prepared by the same, and it can easily prepare a nerve conduit by simulating a nerve bundle and nerve tissue, and the like, by three-dimensionally printing bio-ink comprising a neuronal regeneration material on one side of a porous polymer scaffold.
    Type: Grant
    Filed: May 15, 2020
    Date of Patent: March 21, 2023
    Assignees: Korea University Research and Business Foundation, Korea Institute of Science and Technology
    Inventors: Jong Woong Park, Young Mee Jung, Soo Hyun Kim, Justin Jihong Chung
  • Publication number: 20230073526
    Abstract: A display device includes: a pixel unit including first pixels disposed in a first pixel area and second pixels disposed in a second pixel area; an image data corrector adjusting a limit grayscale of first image data corresponding to the first pixel area based on a dimming level defining a maximum luminance at which the pixel unit is able to emit light, and correcting the first image data based on the limit grayscale; a data driver supplying data signals to the pixel unit based on the corrected first image data and second image data corresponding to the second pixel area; and a scan driver supplying scan signals to the pixel unit.
    Type: Application
    Filed: November 14, 2022
    Publication date: March 9, 2023
    Inventor: Jong Woong PARK
  • Publication number: 20230058182
    Abstract: The present invention relates to a nerve suture patch having a self-healing property, and a production method thereof, and more specifically, to a self-healing nerve suture patch containing a self-healing polymer and a hydrogel, and a production method thereof. The nerve suture patch may be rapidly attached to epineurium by the adhesiveness of the hydrogel and easily suture a damaged nerve.
    Type: Application
    Filed: December 7, 2020
    Publication date: February 23, 2023
    Inventors: Jong Woong PARK, Donghee SON, Mikyung SHIN
  • Patent number: 11568782
    Abstract: A method of driving a display panel that includes first and second display-regions includes: determining maximum luminance data among first data including first red data, first green data, and first blue data for the first display-region, calculating a threshold gray-level based on a luminance gain, a gray-level of the maximum luminance data, and a gamma value for the display panel, selecting a smaller value between the threshold gray-level and a maximum gray-level as a gain determination gray-level, calculating a compensation gain obtained by dividing the gain determination gray-level by the gray-level of the maximum luminance data, generating first compensated data by applying the compensation gain to the first data, displaying a first-image in the first display-region based on the first compensated data, and displaying a second-image in the second display-region based on second data including second red data, second green data, and second blue data for the second display-region.
    Type: Grant
    Filed: August 19, 2020
    Date of Patent: January 31, 2023
    Inventor: Jong-Woong Park
  • Publication number: 20220398961
    Abstract: An electronic device includes a main processor that provides an image signal and an image-sticking correction signal, and a display module that receives the image signal and the image-sticking correction signal and outputs an image data signal obtained by compensating for the image signal. The display module includes a compensation circuit that calculates cumulative stress based on the image data signal and outputs an image-sticking compensation signal and a compensation adjuster that outputs the image data signal obtained by correcting the image signal based on the image-sticking correction signal and the image-sticking compensation signal. The image-sticking correction signal is input by a user manipulation.
    Type: Application
    Filed: March 30, 2022
    Publication date: December 15, 2022
    Inventors: KYUNGSU LEE, JONG-WOONG PARK, WONJU SHIN, JUNHAN KO
  • Patent number: 11501685
    Abstract: A display device includes: a pixel unit including first pixels disposed in a first pixel area and second pixels disposed in a second pixel area; an image data corrector adjusting a limit grayscale of first image data corresponding to the first pixel area based on a dimming level defining a maximum luminance at which the pixel unit is able to emit light, and correcting the first image data based on the limit grayscale; a data driver supplying data signals to the pixel unit based on the corrected first image data and second image data corresponding to the second pixel area; and a scan driver supplying scan signals to the pixel unit.
    Type: Grant
    Filed: April 26, 2021
    Date of Patent: November 15, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Jong Woong Park
  • Patent number: 11458305
    Abstract: A probe insertion device for a neural probe structure with a plurality of probes to simultaneously insert the plurality of probes into a nerve includes a nerve holder to fix the nerve surrounding an outer circumference of the nerve, and a probe holder positioned outside in a radial direction of the nerve holder to fixedly support the probes surrounding a circumference of the nerve holder. The probe holder includes a plurality of sections (“probe holder sections”) arranged radially with respect to the nerve holder and moveable in a radial direction of the nerve holder, and the plurality of probe holder sections simultaneously moves the plurality of probes toward the nerve holder having fixed the nerve, so that the plurality of probes is simultaneously inserted into the nerve in a radial shape when viewed in a lengthwise direction of the nerve.
    Type: Grant
    Filed: February 2, 2018
    Date of Patent: October 4, 2022
    Assignee: Korea Institute of Science and Technology
    Inventors: Jinseok Kim, Jong Woong Park, Hyungdal Park, Wonsuk Choi, Ockchul Kim, Woo Hyun Jung, Sunyoung Jung
  • Publication number: 20220262318
    Abstract: A display device includes dots and a grayscale correction unit. Each dot among the dots includes a first pixel of a first color, a second pixel of a second color, and a third pixel of a third color. The grayscale correction unit is configured to generate corrected grayscale values for a target dot via application of weights to grayscale values of the target dot and grayscale values of neighboring dots of the target dot among the dots. The grayscale correction unit is configured to determine the weights based on the grayscale values of the target dot.
    Type: Application
    Filed: April 29, 2022
    Publication date: August 18, 2022
    Inventors: Jong Woong PARK, Takeshi KATO
  • Patent number: 11403995
    Abstract: A display device includes pixels, a controller, and a data driver. The controller selects a target pixel among the pixels and generates an adjusted gray level for the target pixel based on gray levels corresponding to the target pixel and relevant pixels neighboring the target pixel. The data driver generates a data signal for the target pixel based on the adjusted gray level. The target pixel, at least one of the relevant pixels, and at least one of the pixels of the display device respectively emit light of three colors different from each other. Four mixed colors are different from each other and are each a mixture of at least two of the three colors. The controller generates the adjusted gray level using reference coefficients for at least one of the three colors and for at least one of the four mixed colors.
    Type: Grant
    Filed: April 13, 2021
    Date of Patent: August 2, 2022
    Inventor: Jong Woong Park
  • Publication number: 20220139298
    Abstract: A display device includes pixels, a controller, and a data driver. The controller selects a target pixel among the pixels and generates an adjusted gray level for the target pixel based on gray levels corresponding to the target pixel and relevant pixels neighboring the target pixel. The data driver generates a data signal for the target pixel based on the adjusted gray level. The target pixel, at least one of the relevant pixels, and at least one of the pixels of the display device respectively emit light of three colors different from each other. Four mixed colors are different from each other and are each a mixture of at least two of the three colors. The controller generates the adjusted gray level using reference coefficients for at least one of the three colors and for at least one of the four mixed colors.
    Type: Application
    Filed: April 13, 2021
    Publication date: May 5, 2022
    Inventor: Jong Woong PARK
  • Publication number: 20220108667
    Abstract: A data compensation circuit includes a reference frame memory device which stores reference frame data, an accumulated stress memory device which stores cumulative stress data for each of pixels, a stress data generating block which compares output image data with the reference frame data to generate stress data for each of the pixels, a memory control block which adds the stress data to the cumulative stress data to update the cumulative stress data and a compensating block which generates the output image data by generating afterimage compensation data for each of the pixels based on the cumulative stress data and compensating input image data based on the afterimage compensation data.
    Type: Application
    Filed: October 4, 2021
    Publication date: April 7, 2022
    Inventors: JONG-WOONG PARK, SUK HOON KU, Seok Jeong SONG
  • Patent number: 11276349
    Abstract: An organic light emitting display device includes: a display unit including a plurality of pixels each coupled to a first scan line, a second scan line, and a data line; a scan driver configured to supply, to the display unit, a plurality of first scan pulses corresponding to a bias period and a second scan pulse corresponding to a data write period after the bias period through the respective first and second scan lines; an emission driver configured to supply an emission control signal to the display unit through emission control lines; a data driver configured to supply a data voltage to the display unit through the data lines; and a power supply configured to commonly supply, to the pixels, an initialization voltage, the initialization voltage having a voltage level switching between a first voltage level and a second voltage level in a preset period.
    Type: Grant
    Filed: May 16, 2019
    Date of Patent: March 15, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventor: Jong Woong Park
  • Patent number: 11238778
    Abstract: A display device includes: a memory configured to store an over-driving lookup table and previous frame block data generated by block averaging previous frame data; an over-driver configured to obtain current frame data from input image data and to generate over-driving frame data for the current frame data by comparing the previous frame block data and the current frame data with reference to the over-driving lookup table; a data driver configured to generate an over-driven data signal based on the over-driving frame data; and a plurality of pixels configured to display an image based on the over-driven data signal, wherein the over-driver is configured to perform an over-driving based on a size of a block divided for the block averaging.
    Type: Grant
    Filed: September 17, 2020
    Date of Patent: February 1, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventor: Jong Woong Park
  • Publication number: 20220020306
    Abstract: A display device includes: a pixel unit including first pixels disposed in a first pixel area and second pixels disposed in a second pixel area; an image data corrector adjusting a limit grayscale of first image data corresponding to the first pixel area based on a dimming level defining a maximum luminance at which the pixel unit is able to emit light, and correcting the first image data based on the limit grayscale; a data driver supplying data signals to the pixel unit based on the corrected first image data and second image data corresponding to the second pixel area; and a scan driver supplying scan signals to the pixel unit.
    Type: Application
    Filed: April 26, 2021
    Publication date: January 20, 2022
    Inventor: Jong Woong Park
  • Patent number: 11211008
    Abstract: A display device driven in one of a first mode and a second mode includes a first pixel area which includes first pixels, a second pixel area which includes the second pixels, a first boundary area which is included in the second pixel area and to be positioned between boundary portions of the first pixel area and the second pixel area, and a luminance controller which controls first boundary data corresponding to the first boundary area so that luminance of the first boundary area is gradually changed corresponding to a first data signal applied to the first pixels and the second pixels when the display device is driven in the second mode.
    Type: Grant
    Filed: April 15, 2020
    Date of Patent: December 28, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jong Woong Park, Ho Suk Maeng, Weon Jun Choe
  • Patent number: 11188728
    Abstract: A display device includes a display panel having a display area including pixels in a emitting area, a layer disposed on the display panel and including photo sensors to generate sensing signals upon activation thereof, a panel driving unit to supply a first signal, during a first mode, to display an image in the display area, and supply a second signal, during a second mode, to increase the luminance of the emitting area, a detecting unit to perform a fingerprint sensing operation to detect a fingerprint, during the second mode, based on sensing signals received from the photo sensors, and a setting unit to change a characteristic of the emitting area in response to the fingerprint sensing operation.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: November 30, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventor: Jong Woong Park
  • Publication number: 20210241674
    Abstract: A display device includes: a memory configured to store an over-driving lookup table and previous frame block data generated by block averaging previous frame data; an over-driver configured to obtain current frame data from input image data and to generate over-driving frame data for the current frame data by comparing the previous frame block data and the current frame data with reference to the over-driving lookup table; a data driver configured to generate an over-driven data signal based on the over-driving frame data; and a plurality of pixels configured to display an image based on the over-driven data signal, wherein the over-driver is configured to perform an over-driving based on a size of a block divided for the block averaging.
    Type: Application
    Filed: September 17, 2020
    Publication date: August 5, 2021
    Inventor: Jong Woong PARK
  • Patent number: 11081060
    Abstract: A display device includes: a display panel including a plurality of pixels each coupled to a scan line and a data line; a scan driver for supplying a scan signal having at least one scan pulse to the scan line; and a pulse controller for adjusting a number of the scan pulses supplied during one frame, based on an image variation between a previous frame and a current frame.
    Type: Grant
    Filed: October 11, 2019
    Date of Patent: August 3, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventor: Jong Woong Park