Patents by Inventor Kyoung Sik Choi

Kyoung Sik Choi 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: 11875725
    Abstract: A display device including a display panel according to an embodiment of the present application includes a plurality of pixels, a timing controller configured to receive a compensation command signal in a vertical blank period in which no image data are written in the pixels, and a sensing circuit configured to sense driving properties of the pixels in at least one sensing period corresponding to the compensation command signal, wherein a length of the vertical blank period is different from each other in a first frame and a second frame, and a number of sensing periods having a predetermined length varies depending on the length of the vertical blank period.
    Type: Grant
    Filed: August 20, 2021
    Date of Patent: January 16, 2024
    Assignee: LG Display Co., Ltd.
    Inventors: Won Cho, Kyoung Sik Choi
  • Publication number: 20230306890
    Abstract: A display device including a display panel according, to an embodiment of the present application includes a plurality of pixels, a timing controller configured to receive a compensation command signal in a vertical blank period in which no image data are written in the pixels, and a sensing circuit configured to sense driving properties of the pixels in at least one sensing period corresponding to the compensation command signal, wherein a length of the vertical blank period is different from each other in a first frame and a second frame, and a number of sensing periods having a predetermined length varies depending on the length of the vertical blank period.
    Type: Application
    Filed: August 20, 2021
    Publication date: September 28, 2023
    Inventors: Won CHO, Kyoung Sik CHOI
  • Patent number: 10449392
    Abstract: An aspect of the present invention provides a rectal phantom unit and a phantom device including the same, including: a holder having a penetration portion formed in a longitudinal direction thereof; a rectal simulant which is inserted to the penetration portion of the holder, includes a plurality of unit plates laminated thereon, and simulates a rectum of a body; and a film which is disposed between the rectal simulant and the holder and measures an absorbed dose of radiation irradiated to the rectal simulant.
    Type: Grant
    Filed: April 2, 2015
    Date of Patent: October 22, 2019
    Assignee: THE CATHOLIC UNIVERSITY OF KOREA INDUSTRY-ACADEMIC COOPERATIVE FOUNDATION
    Inventors: Tae Suk Suh, Ji Yeon Park, Seu Ran Lee, Jeong Woo Lee, Hae Jin Park, Kyoung Sik Choi
  • Publication number: 20190281947
    Abstract: Disclosed are an artificial nail and a transfer assembly set for an artificial nail. The artificial nail according to an embodiment of the present disclosure includes a design layer having a plurality of first die-cut lines, and an adhesion layer provided below the design layer, and which is adhered to a nail main body.
    Type: Application
    Filed: December 6, 2017
    Publication date: September 19, 2019
    Applicant: JC KOREA CORP.
    Inventors: Dong Sung KIM, Kyoung Sik CHOI
  • Publication number: 20190281945
    Abstract: Disclosed are a sticker transfer assembly set and a sticker transfer method using the same. The sticker transfer assembly set according to an embodiment of the present disclosure includes a sticker having a decoration peelably adhered to a release sheet, and a transfer body including an adhesion part, wherein the decoration is adhered to the adhesion part when pressing an upper surface of the decoration adhered to the release sheet upon contact, wherein the transfer body peels the decoration off from the release sheet and attaches the decoration to a target by pressing the decoration onto the target upon contact.
    Type: Application
    Filed: December 6, 2017
    Publication date: September 19, 2019
    Applicant: JC KOREA CORP.
    Inventors: Dong Sung KIM, Kyoung Sik CHOI
  • Publication number: 20180036555
    Abstract: An aspect of the present invention provides a rectal phantom unit and a phantom device including the same, including: a holder having a penetration portion formed in a longitudinal direction thereof; a rectal simulant which is inserted to the penetration portion of the holder, includes a plurality of unit plates laminated thereon, and simulates a rectum of a body; and a film which is disposed between the rectal simulant and the holder and measures an absorbed dose of radiation irradiated to the rectal simulant.
    Type: Application
    Filed: April 2, 2015
    Publication date: February 8, 2018
    Applicant: CATHOLIC UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Tae Suk SUH, Ji Yeon PARK, Seu Ran LEE, Jeong Woo LEE, Hae Jin PARK, Kyoung Sik CHOI
  • Patent number: 9858866
    Abstract: An organic light-emitting display device includes: an organic light-emitting panel comprising a plurality of pixel regions, each pixel region comprising a scan line and a data line crossing each other, each pixel region further comprising an organic light-emission element and a drive transistor configured to drive the organic light emission element; and a circuit configured to sense a threshold voltage of the drive transistor in a sensing interval and control a light emission of the organic light emission element within the pixel region in a display interval.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: January 2, 2018
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Jin Hyoung Kim, Seung Tae Kim, Kyoung Sik Choi, UiTaek Jeong
  • Patent number: 9715848
    Abstract: An organic light emitting display device includes a display panel having a plurality of sub-pixels; a memory configured to accumulate and store data displayed by each sub-pixel; and a panel driver configured to: calculate a degradation compensation gain value for increasing or decreasing a luminance of each sub-pixel based on accumulated data of each sub-pixel stored in the memory, generate modulated data of each sub-pixel by modulating input data to each sub-pixel according to the calculated degradation compensation gain value, convert the modulated data into a data voltage, and accumulate the modulated data from the accumulated data of the corresponding sub-pixel and then store the data in the memory.
    Type: Grant
    Filed: December 11, 2013
    Date of Patent: July 25, 2017
    Assignee: LG Display Co., Ltd.
    Inventors: Hyung Rae Kim, Seung Chan Byun, Jung Yoon Yi, Kyoung Sik Choi, Dae Hyeon Park, Ui Taek Jeong, Boeon Byeon
  • Publication number: 20170103708
    Abstract: An organic light-emitting display device includes: an organic light-emitting panel comprising a plurality of pixel regions, each pixel region comprising a scan line and a data line crossing each other, each pixel region further comprising an organic light-emission element and a drive transistor configured to drive the organic light emission element; and a circuit configured to sense a threshold voltage of the drive transistor in a sensing interval and control a light emission of the organic light emission element within the pixel region in a display interval.
    Type: Application
    Filed: December 22, 2016
    Publication date: April 13, 2017
    Inventors: Jin Hyoung Kim, Seung Tae Kim, Kyoung Sik Choi, UiTaek Jeong
  • Patent number: 9548020
    Abstract: An organic light-emitting display device includes: an organic light-emitting panel comprising a plurality of pixel regions, each pixel region comprising a scan line and a data line crossing each other, each pixel region further comprising an organic light-emission element and a drive transistor configured to drive the organic light emission element; and a circuit configured to sense a threshold voltage of the drive transistor in a sensing interval and control a light emission of the organic light emission element within the pixel region in a display interval.
    Type: Grant
    Filed: October 11, 2012
    Date of Patent: January 17, 2017
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Jin Hyoung Kim, Seung Tae Kim, Kyoung Sik Choi, Ui Jeong
  • Publication number: 20140168039
    Abstract: An organic light emitting display device includes a display panel having a plurality of sub-pixels; a memory configured to accumulate and store data displayed by each sub-pixel; and a panel driver configured to: calculate a degradation compensation gain value for increasing or decreasing a luminance of each sub-pixel based on accumulated data of each sub-pixel stored in the memory, generate modulated data of each sub-pixel by modulating input data to each sub-pixel according to the calculated degradation compensation gain value, convert the modulated data into a data voltage, and accumulate the modulated data from the accumulated data of the corresponding sub-pixel and then store the data in the memory.
    Type: Application
    Filed: December 11, 2013
    Publication date: June 19, 2014
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Hyung Rae Kim, Seung Chan Byun, Jung Yoon Yi, Kyoung Sik Choi, Dae Hyeon Park, Ui Taek Jeong, Boeon Byeon
  • Publication number: 20130093652
    Abstract: An organic light-emitting display device includes: an organic light-emitting panel comprising a plurality of pixel regions, each pixel region comprising a scan line and a data line crossing each other, each pixel region further comprising an organic light-emission element and a drive transistor configured to drive the organic light emission element; and a circuit configured to sense a threshold voltage of the drive transistor in a sensing interval and control a light emission of the organic light emission element within the pixel region in a display interval.
    Type: Application
    Filed: October 11, 2012
    Publication date: April 18, 2013
    Applicant: LG Display Co., Ltd.
    Inventors: Jin Hyoung KIM, Seung Tae Kim, Kyoung Sik Choi, Ui Jeong
  • Publication number: 20120163003
    Abstract: A light emitting apparatus is provided. The light emitting apparatus includes a support unit configured to protrude to a front side to which light is emitted, and a heat emitting unit configured to emit heat generated by the light emission in multiple directions. According to the structure, the heat may be emitted quickly. Therefore, quality of the light emitting apparatus may be increased.
    Type: Application
    Filed: December 19, 2011
    Publication date: June 28, 2012
    Inventors: Ki Un LEE, Chang Sub Lee, Kyeong Ik Min, Hyung Jin Kim, Sang Ho Yoon, Kyoung Sik Choi
  • Patent number: 8022374
    Abstract: Provided is a holder device for analyzing characteristics of a dosimeter. In the holder device, the dosimeter is located in a desired direction on a radiation path along which radiation is irradiated from a radiation emitter, and a radiation absorbance characteristic is recognized according to a radiation dose absorbed by the dosimeter. The holder device includes: a dosimeter holder fixedly supporting the dosimeter; a body having a partial spherical portion with a specific curvature, and having a plurality of mounting holes containing the dosimeter holder; and a supporter supporting the body so that the dosimeter is located on the radiation path. Accordingly, in the holder device for analyzing characteristics of a dosimeter, one or more dosimeters can be disposed at a desired angle and position with respect to a radiation emitter, characteristics of the dosimeter can be accurately analyzed, and thus radiation treatment and treatment schedule can be effectively performed.
    Type: Grant
    Filed: July 11, 2007
    Date of Patent: September 20, 2011
    Assignee: Catholic University Industry Academic Cooperation Foundation
    Inventors: Tae Suk Seo, Jin Beom Chung, Jeong Woo Lee, Yon Lae Kim, Kyoung Sik Choi, Seoung Jong Oh, Jai Woong Yoon
  • Publication number: 20100293507
    Abstract: Provided is a method and system for creating a report by using objects, the method includes: receiving input information including a first table that includes data that is to be output from among a plurality of tables stored in a database and properties of the data; generating a query language sentence used to extract the data from the first table according to the input information; extracting the data from the first data by using the query language sentence; receiving diagram selection information in which a type of diagram for presenting the extracted data is selected; establishing details of the selected type of diagram so as to present the extracted data; generating output objects presenting the extracted data as the selected type of diagram by using the diagram selection information and the established details; designating locations where the output objects are arranged in a report that is to output the output objects; and generating a report screen including the output objects arranged in the locations
    Type: Application
    Filed: September 25, 2008
    Publication date: November 18, 2010
    Applicant: EYEQ MC CO., LTD.
    Inventors: Dae Gwan Song, Jae Yool Shin, Kyoung Sik Choi
  • Patent number: D861987
    Type: Grant
    Filed: May 24, 2018
    Date of Patent: October 1, 2019
    Assignee: JC KOREA CORP.
    Inventors: Dong Sung Kim, Kyoung Sik Choi
  • Patent number: D862798
    Type: Grant
    Filed: July 2, 2018
    Date of Patent: October 8, 2019
    Assignee: JC KOREA CORP.
    Inventors: Kyoung Sik Choi, Dong Sung Kim
  • Patent number: D874919
    Type: Grant
    Filed: July 2, 2018
    Date of Patent: February 11, 2020
    Assignee: JC KOREA CORP.
    Inventor: Kyoung Sik Choi
  • Patent number: D876947
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: March 3, 2020
    Assignee: JC KOREA CORP.
    Inventor: Kyoung Sik Choi
  • Patent number: D883086
    Type: Grant
    Filed: August 1, 2018
    Date of Patent: May 5, 2020
    Assignee: JC KOREA CORP.
    Inventor: Kyoung Sik Choi