Patents by Inventor Shinji Takasugi

Shinji Takasugi 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: 11735098
    Abstract: A light emitting display device where a pixel circuit detecting a threshold voltage of a driving transistor in each of a plurality of subpixels is arranged in a matrix, includes: a threshold voltage estimating part generating a threshold voltage estimation value by estimating the threshold voltage of the driving transistor through a data counting method; a reference voltage modifying part generating a reference voltage modification value by modifying a reference voltage used for detecting the threshold voltage based on the threshold voltage estimation value; an image data voltage modifying part generating an image data voltage modification value by adding a threshold voltage detection value to a data voltage corresponding to an image data; and an accumulated deterioration calculating part calculating an accumulated deterioration by accumulating a deterioration data of a function of the data voltage.
    Type: Grant
    Filed: December 8, 2020
    Date of Patent: August 22, 2023
    Assignee: LG Display Co., Ltd.
    Inventor: Shinji Takasugi
  • Patent number: 11733810
    Abstract: A touch display device, in which a plurality of touch electrodes are arranged in a display panel, includes: the plurality of touch electrodes installed inside the display panel; a first coil installed inside the display panel and making a current flow for a mutual induction with the plurality of touch electrodes; and a second coil installed inside the display panel and on which a current flows by a mutual induction with the plurality of touch electrodes, wherein the touch display device conducts a touch detection by the current flowing the second coil.
    Type: Grant
    Filed: October 6, 2021
    Date of Patent: August 22, 2023
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Takayuki Suzuki, Tomonori Miyokawa, Tsutomu Ichikawa, Jae-Hun Ye, Shinji Takasugi
  • Publication number: 20230209276
    Abstract: An apparatus can include a passive vibration member; a vibration device coupled to a rear surface of the passive vibration member; and a supporting member at the rear surface of the passive vibration member. The apparatus can include a first vibration portion; a second vibration portion coupled to a periphery of the first vibration portion; and a connection portion disposed between a periphery of the second vibration portion and the rear surface of the passive vibration member.
    Type: Application
    Filed: December 22, 2022
    Publication date: June 29, 2023
    Applicant: LG Display Co., Ltd.
    Inventors: Jaehun YE, Shinji TAKASUGI
  • Publication number: 20230209251
    Abstract: An apparatus can include a passive vibration member; a vibration device including a plurality of active vibration members coupled to a rear surface of the passive vibration member, the plurality of active vibration members being arranged along one or more of a first direction and a second direction intersecting with the first direction; and a supporting member at the rear surface of the passive vibration member. Also, at least one or more of the plurality of active vibration members are configured to receive a driving signal that differs from a driving signal applied to other active vibration members among the plurality of active vibration members.
    Type: Application
    Filed: December 22, 2022
    Publication date: June 29, 2023
    Applicant: LG Display Co., Ltd.
    Inventors: Jaehun YE, Shinji TAKASUGI
  • Patent number: 11443693
    Abstract: A display control device for controlling a display device including a display panel having a plurality of pixels arranged in rows and columns includes: a first driving unit supplying a data voltage corresponding to a luminance to the pixels by the columns; and a second driving unit selecting the pixels receiving the data voltage by the rows, wherein the first driving unit and the second driving unit, in one frame: sequentially supply the data voltage for an image display to the pixels of a first block including a first group of the rows; supply a black level voltage to the pixels of a second block including a second group of the rows; and supply the black level voltage to the pixels in at least one of the rows of the first block while the black level voltage is supplied to the pixels of the second block.
    Type: Grant
    Filed: October 12, 2020
    Date of Patent: September 13, 2022
    Assignee: LG Display Co., Ltd.
    Inventor: Shinji Takasugi
  • Patent number: 11403985
    Abstract: A display control device includes: an input part receiving an input signal including gray levels of the first color, the second color and the third color constituting a color for each of the plurality of pixels; a selection part selecting at least one of the plurality of pixels as a selection pixel and other of the plurality of pixels as a non-selection pixel; and an output part outputting an output signal controlling luminances of the first sub-pixel, the second sub-pixel, the third sub-pixel and the fourth sub-pixel based on the input signal, wherein at least one of the first sub-pixel, the second sub-pixel and the third sub-pixel of the non-selection pixel is controlled to have a luminance of 0 according to the output signal, and wherein the fourth sub-pixel of the selection pixel is controlled to have a luminance of 0 according to the output signal.
    Type: Grant
    Filed: June 22, 2020
    Date of Patent: August 2, 2022
    Assignee: LG Display Co., Ltd.
    Inventors: Shinji Takasugi, Hyun-Jong Ji
  • Publication number: 20220113821
    Abstract: A touch display device, in which a plurality of touch electrodes are arranged in a display panel, includes: the plurality of touch electrodes installed inside the display panel; a first coil installed inside the display panel and making a current flow for a mutual induction with the plurality of touch electrodes; and a second coil installed inside the display panel and on which a current flows by a mutual induction with the plurality of touch electrodes, wherein the touch display device conducts a touch detection by the current flowing the second coil.
    Type: Application
    Filed: October 6, 2021
    Publication date: April 14, 2022
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Takayuki SUZUKI, Tomonori MIYOKAWA, Tsutomu ICHIKAWA, Jae-Hun YE, Shinji TAKASUGI
  • Patent number: 11302249
    Abstract: A display control device includes: a display processing part displaying an image in a display unit; and a movement processing part changing a display position of the image according to a display time of the image within a movement range having a reference display position of the image in the display unit as a center, wherein the movement processing part changes the display position within the movement range such that an accumulated display time of the image is reduced from the center to a periphery of the movement range.
    Type: Grant
    Filed: June 24, 2020
    Date of Patent: April 12, 2022
    Assignee: LG Display Co., Ltd.
    Inventor: Shinji Takasugi
  • Patent number: 11107391
    Abstract: A light emitting display device, includes: a plurality of pixels arranged in a matrix form, each of the plurality of pixels including: a light emitting element in which a light emitting diode is between an anode and a cathode; a light emission transistor, one of a source or a drain of the light emission transistor is connected to the anode; a driving transistor, one of a source or a drain of the driving transistor is connected to the other of the source or the drain of the light emission transistor; and an initialization transistor which is configured to connect a gate of the driving transistor, the one of the source or the drain of the driving transistor, and the anode, the anode being connected to an initialization voltage line of a fixed voltage at a same time, wherein initialization transistor has a resistance greater than the driving transistor.
    Type: Grant
    Filed: December 4, 2019
    Date of Patent: August 31, 2021
    Assignee: LG DISPLAY CO., LTD.
    Inventor: Shinji Takasugi
  • Publication number: 20210183304
    Abstract: A light emitting display device where a pixel circuit detecting a threshold voltage of a driving transistor in each of a plurality of subpixels is arranged in a matrix, includes: a threshold voltage estimating part generating a threshold voltage estimation value by estimating the threshold voltage of the driving transistor through a data counting method; a reference voltage modifying part generating a reference voltage modification value by modifying a reference voltage used for detecting the threshold voltage based on the threshold voltage estimation value; an image data voltage modifying part generating an image data voltage modification value by adding a threshold voltage detection value to a data voltage corresponding to an image data; and an accumulated deterioration calculating part calculating an accumulated deterioration by accumulating a deterioration data of a function of the data voltage.
    Type: Application
    Filed: December 8, 2020
    Publication date: June 17, 2021
    Applicant: LG DISPLAY CO., LTD.
    Inventor: Shinji TAKASUGI
  • Publication number: 20210118369
    Abstract: A display control device for controlling a display device including a display panel having a plurality of pixels arranged in rows and columns includes: a first driving unit supplying a data voltage corresponding to a luminance to the pixels by the columns; and a second driving unit selecting the pixels receiving the data voltage by the rows, wherein the first driving unit and the second driving unit, in one frame: sequentially supply the data voltage for an image display to the pixels of a first block including a first group of the rows; supply a black level voltage to the pixels of a second block including a second group of the rows; and supply the black level voltage to the pixels in at least one of the rows of the first block while the black level voltage is supplied to the pixels of the second block.
    Type: Application
    Filed: October 12, 2020
    Publication date: April 22, 2021
    Applicant: LG DISPLAY CO., LTD.
    Inventor: Shinji TAKASUGI
  • Patent number: 10902783
    Abstract: Provided is a light emitting display device and a method of driving the same. The light emitting display device includes: a display panel in which pixel lines including a plurality of pixels are divided into at least one area A and at least one area B; a panel driver connected to the pixel line; and a timing controller for controlling operation of the panel driver to perform image data writing (IDW) driving for sequentially writing input image data to a plurality of pixel lines included in one of the area A and the area B and to perform sensing data writing (SDW) driving for writing sensing data to a pixel line included in one of the area A and the area B in a vertical blank period in which image data writing driving is not performed. The timing controller writes coupling compensation data during the vertical blank period.
    Type: Grant
    Filed: August 27, 2019
    Date of Patent: January 26, 2021
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Joonmin Park, Shinji Takasugi
  • Patent number: 10891903
    Abstract: An organic light emitting display (OLED) device comprises: a display panel including a substrate, a plurality of data lines on the substrate, a plurality of gate lines on the substrate and oriented transverse to the data lines, and a plurality of pixels connected to the data lines and the gate lines. A data driver supplies data voltages to the data lines, and a gate-in-panel (GIP) gate driver supplies gate pulses to the gate lines. The gate driver drives the display panel in a plurality of blocks of pixel lines within one frame. The data voltages are sequentially supplied to pixel lines of a jth block (j is a natural number) during a data writing period, and a black image is written simultaneously to pixel lines of a qth block (q is a natural number different from j) during a black data insertion period.
    Type: Grant
    Filed: December 6, 2018
    Date of Patent: January 12, 2021
    Assignee: LG Display Co., Ltd.
    Inventor: Shinji Takasugi
  • Publication number: 20200410930
    Abstract: A display control device includes: a display processing part displaying an image in a display unit; and a movement processing part changing a display position of the image according to a display time of the image within a movement range having a reference display position of the image in the display unit as a center, wherein the movement processing part changes the display position within the movement range such that an accumulated display time of the image is reduced from the center to a periphery of the movement range.
    Type: Application
    Filed: June 24, 2020
    Publication date: December 31, 2020
    Inventor: Shinji TAKASUGI
  • Publication number: 20200402440
    Abstract: A display control device includes: an input part receiving an input signal including gray levels of the first color, the second color and the third color constituting a color for each of the plurality of pixels; a selection part selecting at least one of the plurality of pixels as a selection pixel and other of the plurality of pixels as a non-selection pixel; and an output part outputting an output signal controlling luminances of the first sub-pixel, the second sub-pixel, the third sub-pixel and the fourth sub-pixel based on the input signal, wherein at least one of the first sub-pixel, the second sub-pixel and the third sub-pixel of the non-selection pixel is controlled to have a luminance of 0 according to the output signal, and wherein the fourth sub-pixel of the selection pixel is controlled to have a luminance of 0 according to the output signal.
    Type: Application
    Filed: June 22, 2020
    Publication date: December 24, 2020
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Shinji TAKASUGI, Hyun-Jong JI
  • Patent number: 10803810
    Abstract: Provided is a display device including a display panel, a data driver, a gate driver, and a timing controller. The display panel includes first and second pixel line groups each including k (k is a natural greater than 1) pixel lines, and each of the pixel lines includes a plurality of pixels connected to the same gate line. The data driver supplies an image data voltage to the pixels on the basis of input image data. The gate driver supplies a gate pulse to the gate line. The timing controller controls a driving timing of the data driver and the gate driver, sequentially writes the image data voltage into pixel lines belonging to the first pixel line group during an image data write period and simultaneously writes a black data voltage into pixel lines belonging to the second pixel line group during a black data insertion (BDI) period. The timing controller changes an interval between timings for writing the black data voltage from a start timing of a frame on a frame-by-frame basis.
    Type: Grant
    Filed: September 9, 2019
    Date of Patent: October 13, 2020
    Assignee: LG DISPLAY CO., LTD.
    Inventor: Shinji Takasugi
  • Patent number: 10748492
    Abstract: Provided is a gate shift register having multiple stages including a plurality of scan clock lines supplying scan shift clocks having different phases required for generating a scan control signal to the stages, and a plurality of shared carry clock lines supplying carry shift clocks having different phases required for generating a carry signal to the stages, wherein the number of the shared carry clock lines is half of the number of the scan clock lines and each of stage pairs including an odd-numbered stage and an even-numbered stage adjacent to each other share one carry shift clock.
    Type: Grant
    Filed: December 3, 2018
    Date of Patent: August 18, 2020
    Assignee: LG DISPLAY CO., LTD.
    Inventor: Shinji Takasugi
  • Publication number: 20200202771
    Abstract: A light emitting display device, includes: a plurality of pixels arranged in a matrix form, each of the plurality of pixels including: a light emitting element in which a light emitting diode is between an anode and a cathode; a light emission transistor, one of a source or a drain of the light emission transistor is connected to the anode; a driving transistor, one of a source or a drain of the driving transistor is connected to the other of the source or the drain of the light emission transistor; and an initialization transistor which is configured to connect a gate of the driving transistor, the one of the source or the drain of the driving transistor, and the anode, the anode being connected to an initialization voltage line of a fixed voltage at a same time, wherein initialization transistor has a resistance greater than the driving transistor.
    Type: Application
    Filed: December 4, 2019
    Publication date: June 25, 2020
    Inventor: Shinji TAKASUGI
  • Publication number: 20200082762
    Abstract: Provided is a display device including a display panel, a data driver, a gate driver, and a timing controller. The display panel includes first and second pixel line groups each including k (k is a natural greater than 1) pixel lines, and each of the pixel lines includes a plurality of pixels connected to the same gate line. The data driver supplies an image data voltage to the pixels on the basis of input image data. The gate driver supplies a gate pulse to the gate line. The timing controller controls a driving timing of the data driver and the gate driver, sequentially writes the image data voltage into pixel lines belonging to the first pixel line group during an image data write period and simultaneously writes a black data voltage into pixel lines belonging to the second pixel line group during a black data insertion (BDI) period. The timing controller changes an interval between timings for writing the black data voltage from a start timing of a frame on a frame-by-frame basis.
    Type: Application
    Filed: September 9, 2019
    Publication date: March 12, 2020
    Inventor: Shinji TAKASUGI
  • Publication number: 20200074932
    Abstract: Provided is a light emitting display device and a method of driving the same. The light emitting display device includes: a display panel in which pixel lines including a plurality of pixels are divided into at least one area A and at least one area B; a panel driver connected to the pixel line; and a timing controller for controlling operation of the panel driver to perform image data writing (IDW) driving for sequentially writing input image data to a plurality of pixel lines included in one of the area A and the area B and to perform sensing data writing (SDW) driving for writing sensing data to a pixel line included in one of the area A and the area B in a vertical blank period in which image data writing driving is not performed. The timing controller writes coupling compensation data during the vertical blank period.
    Type: Application
    Filed: August 27, 2019
    Publication date: March 5, 2020
    Inventors: Joonmin PARK, Shinji TAKASUGI