Patents by Inventor Dong-Won Park

Dong-Won 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: 20220180800
    Abstract: An electroluminescence display apparatus includes a display panel including a plurality of pixels connected to a first power line, a power circuit converting a final feedback driving voltage input through a first input terminal thereof to output a high level driving voltage to a first position of the first power line through a first output terminal thereof, and a feedback control circuit receiving the high level driving voltage as a first feedback driving voltage, receiving a second feedback driving voltage from a second position of the first power line, and supplying the first input terminal of the power circuit with the final feedback driving voltage adjusted based on a first output contribution rate of the first feedback driving voltage and a second output contribution rate of the second feedback driving voltage.
    Type: Application
    Filed: November 9, 2021
    Publication date: June 9, 2022
    Inventors: Yong Chul Kwon, Jung Jae Kim, Nam Kon Ko, Dong Won Park
  • Patent number: 11314131
    Abstract: A display device includes a substrate; and a red pixel electrode, a green pixel electrode, and a blue pixel electrode disposed on the substrate. Each of the red pixel electrode, the green pixel electrode, and the blue pixel electrode includes a transverse stem portion, a longitudinal stem portion, and a fine branch portion. An angle between the transverse stem portion and the fine branch portion of the red pixel electrode, an angle between the transverse stem portion and the fine branch portion of the green pixel electrode, and an angle between the transverse stem portion and the fine branch portion of the blue pixel electrode are different from each other.
    Type: Grant
    Filed: April 25, 2018
    Date of Patent: April 26, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dong Beom Cho, Dong Won Park, Song Yi Han
  • Publication number: 20220108659
    Abstract: A display device includes a display panel displaying an image, a scan driver configured to apply scan signals to the display panel, and a power supply configured to apply a gate high voltage and a gate low voltage to the scan driver. The scan driver discharges the display panel based on a second gate high voltage lower than the gate high voltage during a discharging operation of the display panel.
    Type: Application
    Filed: September 30, 2021
    Publication date: April 7, 2022
    Inventors: Dong Ju Kim, Soon Dong Cho, Jun O Hur, Dong Won Park, Won Yong Jang
  • Publication number: 20220076386
    Abstract: An image deblurring method and an apparatus performing the same are disclosed. The image deblurring method according to an example embodiment includes receiving a blurred image, and deblurring of outputting a sharp original image based on the blurred image. The deblurring includes obtaining a second image having the same scale as that of a first image by inputting the first image to a neural network, obtaining a third image having the same scale as that of the first image by concatenating the first image and the second image, and obtaining a fourth image having the same scale as that of the first image by inputting the third image to the neural network.
    Type: Application
    Filed: November 12, 2020
    Publication date: March 10, 2022
    Applicant: UNIST (ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY)
    Inventors: Se Young Chun, Dong Won Park, Dong Un Kang
  • Publication number: 20210183319
    Abstract: A display device includes a display panel including pixels, and data lines and gate lines connected to the pixels, a timing controller configured to output source driving bit information and gate driving bit information through an intra-interface signal, a source driver configured to generate data driving signal based on the source driving bit information and to supply the data driving signal to the data lines, and a gate driver configured to generate a gate driving signal based on the gate driving bit information and to supply the gate driving signal to the gate lines, wherein the intra-interface signal is configured with predetermined data transmission units and includes both the source driving bit information and the gate driving bit information every 1 data transmission unit.
    Type: Application
    Filed: December 16, 2020
    Publication date: June 17, 2021
    Applicant: LG Display Co., Ltd.
    Inventors: Soon-Dong CHO, Jung-Jae KIM, Min-Gyu PARK, Jae-Won HAN, Dong-Won PARK
  • Publication number: 20210173248
    Abstract: A display device is disclosed. The display device includes a display panel configured to display an image, and a printed circuit board electrically connected to the display panel and disposed at a back surface of the display panel. The printed circuit board includes an insulating layer, a first metal layer disposed at one surface of the insulating layer, pads including a first pad disposed on the first metal layer while being disposed inside a mounting area where an integrated circuit is mounted, and second pads disposed around the first pad, and a groove provided to extend from an inside of the mounting area to an outside of the mounting area.
    Type: Application
    Filed: December 3, 2020
    Publication date: June 10, 2021
    Inventors: Jeong-Kyu LEE, Dong-Won PARK, Min-Gyu PARK, Nam-Kon KO
  • Patent number: 10878774
    Abstract: A display device includes a timing controller configured to supply a first set signal to a data control signal line in a first frequency mode, and to supply a second set signal and a data signal to the data control signal line in a second frequency mode that is different from the first frequency mode, a data driver configured to recover the data signal supplied to the data control signal line according to a signal recovery characteristic value, to generate a plurality of data voltages based on the recovered data signal, and to adjust the signal recover characteristic value based on the first set signal and the second set signal, and a display unit including a plurality of pixels that emit lights with gray scales corresponding to the plurality of data voltages.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: December 29, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Tae Gon Im, Myeong Su Kim, Bo Yeon Kim, Sun Koo Kang, Yong Bum Kim, Dong Won Park, Jung Hwan Cho
  • Patent number: 10847086
    Abstract: An OLED display device capable of simplifying the configuration of an external compensation circuit and reducing a compensation time is disclosed. The OLED display device includes a display panel including a pixel, a feedback compensator circuit connected to the pixel through a data line and a sensing line of the display panel, the feedback compensator circuit including an error amplifier configured to receive, through a feedback line, a feedback current flowing into the sensing line and a feedback voltage generated by a sensing resistor, from the pixel during a scan period, compare a data input voltage with the feedback voltage to adjust a data output voltage supplied to the pixel through the data line, and set a target current for driving an OLED element in the pixel, and a precharger configured to precharge the feedback compensator circuit at a front part of the scan period.
    Type: Grant
    Filed: October 18, 2017
    Date of Patent: November 24, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: Yong-Chul Kwon, Jang-Hwan Kim, Dong-Won Park, Jong-Min Park, Joon-Hee Lee
  • Patent number: 10810964
    Abstract: A display device includes a display unit including a plurality of pixels, each of the pixels including a plurality of subpixels, and a display area having a corner of a non-right angular shape, and a signal controller controlling the display unit to display an image based on an input image signal and a control signal and changing a gray value of the image signal based on different light transmittance values of subpixels included in a first pixel, among the plurality of pixels, positioned at the corner of the non-right angular shape if the image signal corresponds to the first pixel at the corner of the non-right angular shape.
    Type: Grant
    Filed: November 7, 2017
    Date of Patent: October 20, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sung Jae Park, Jae-Gwan Jeon, Kyung Su Lee, Dong Won Park, Dong Hwa Shin
  • Patent number: 10762816
    Abstract: A display device may include a timing controller, a data driver and a plurality of pixels. The timing controller supplies a clock training pattern over a data/clock signal line in a first time period, and supplies pixel/control data over the data/clock signal line in a second time period. The data driver generates a clock signal, using the clock training pattern, in the first period, and generate a plurality of data voltages based on the plurality of pixel data, using the clock signal, in the second period. The plurality of pixels receive the plurality of data voltages and emit corresponding light. During the second period, the data driver outputs a feedback signal to the timing controller indicating that the locking of the clock signal has failed. The timing controller re-supplies the clock training pattern in response to the feedback signal.
    Type: Grant
    Filed: July 26, 2018
    Date of Patent: September 1, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jae Han Lee, Myeong Su Kim, Sun Koo Kang, Bo Yeon Kim, Dong Won Park, Tae Gon Im, Jung Hwan Cho
  • Patent number: 10733937
    Abstract: An organic light-emitting diode (OLED) display can include a display panel including sub-pixels; a deterioration sensing unit configured to sense a deterioration state of the display panel; a power supply configured to output a high voltage for driving the sub-pixels; and a timing controller configured to: receive a deterioration sensing result including information on the deterioration state of the display panel from the deterioration sensing unit, continuously vary the high voltage based on the deterioration sensing result received from the deterioration sensing unit, and provide the varied high voltage to the sub-pixels.
    Type: Grant
    Filed: September 24, 2018
    Date of Patent: August 4, 2020
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Yong-Chul Kwon, Dong-Won Park, Dong-Woo Lee, Joon-Hee Lee
  • Patent number: 10714033
    Abstract: A display panel driving apparatus includes a data processing part. The data processing part calculates a first pretilt value of previous image data to output a first pretilt signal, calculates a second pretilt value of current image data to output a second pretilt signal, analyze a luminance distribution of unit pixels from image data to output luminance distribution analysis data, analyzes a color pixel to which a pretilt is applied based on the unit pixel from the image data to output color analysis data, outputs a determination signal indicating whether the pretilt is applied to the image data, according to the luminance distribution analysis data and the color analysis data, and outputs pretilt compensation image data according to the first pretilt signal, the second pretilt signal and the determination signal, as compensation image data.
    Type: Grant
    Filed: January 19, 2016
    Date of Patent: July 14, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Nam-Gon Choi, Dong-Won Park, Seung-Hwan Moon, Byung-Kil Jeon
  • Patent number: 10643537
    Abstract: An OLED display device capable of preventing luminance deviation caused by a voltage drop of an EVDD is disclosed. The OLED display device generates a reference voltage, a voltage level of which varies with distance from the data driver and supplies the reference voltage to the display panel through the data driver.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: May 5, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: Yong-Chul Kwon, Jang-Hwan Kim, Dong-Won Park, Jong-Min Park, Joon-Hee Lee
  • Patent number: 10535118
    Abstract: A display device includes a display unit which includes a plurality of pixels and a display area having a corner of a non-right angular shape and a signal controller which controls the display unit to display an image through the plurality of pixels based on an input image signal, detects a specific pattern in a partial region, of the image, corresponding to a partial area, of the display unit, including the corner of the non-right angular shape, and controls the display unit to display a partial image corresponding to the partial region of the image in the display area without crossing the corner, according to a position of the specific pattern in the partial region.
    Type: Grant
    Filed: November 9, 2017
    Date of Patent: January 14, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sung Jae Park, Mu Gyeom Kim, Dong Won Park, Jae Sung Bae, Jae-Gwan Jeon, Dong Hwa Shin
  • Patent number: 10510280
    Abstract: A display apparatus includes a display panel, a timing controller, a gate driver, and a data driver. The display panel includes a display area configured to display an image and a non-display area adjacent to a side of the display area in a first direction. The display area includes gate lines, data lines, gate dummy lines, data contact parts, and pixels. The data lines cross the gate lines and are insulated from at least a portion of the gate lines. The gate dummy lines are substantially in parallel to the gate lines and spaced from the gate lines. The data contact parts couple the gate dummy lines to the data lines at a side of the display panel in a second direction substantially perpendicular to the first direction. The pixels are coupled to the gate lines and the data lines.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: December 17, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sangjin Jeon, Ilgon Kim, Dong-Won Park, Bonghyun You, Junki Jeong
  • Patent number: 10490152
    Abstract: A display device includes a display panel, a timing controller which receives a first image signal and a first control signal from an external device and outputs a second image signal and a second control signal, and a data driving part including a plurality of source integrated circuits (“IC”s) having different channel numbers based on a distance thereof from the timing controller, in which the data driving part receives the second image signal and the second control signal and outputs a third image signal and a third control signal to the display panel.
    Type: Grant
    Filed: October 19, 2017
    Date of Patent: November 26, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dong-Won Park, Bong-Hyun You
  • Publication number: 20190304397
    Abstract: A display device includes a timing controller configured to supply a first set signal to a data control signal line in a first frequency mode, and to supply a second set signal and a data signal to the data control signal line in a second frequency mode that is different from the first frequency mode, a data driver configured to recover the data signal supplied to the data control signal line according to a signal recovery characteristic value, to generate a plurality of data voltages based on the recovered data signal, and to adjust the signal recover characteristic value based on the first set signal and the second set signal, and a display unit including a plurality of pixels that emit lights with gray scales corresponding to the plurality of data voltages
    Type: Application
    Filed: February 27, 2019
    Publication date: October 3, 2019
    Inventors: Tae Gon IM, Myeong Su KIM, Bo Yeon KIM, Sun Koo KANG, Yong Bum KIM, Dong Won PARK, Jung Hwan CHO
  • Patent number: 10347191
    Abstract: A method of driving a display panel includes providing a first clock signal having a first frequency and a second clock signal having a second frequency different from the first frequency. The method also includes providing a data signal of an N-th frame image to the display panel using the first clock signal, and providing a data signal of an (N+1)-th frame image to the display panel using the second clock signal. N is a natural number.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: July 9, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dong-Won Park, Bong-Hyun You, Jae-Sung Bae, Jai-Hyun Koh
  • Publication number: 20190206298
    Abstract: A display apparatus includes a display panel, a timing controller, a gate driver, and a data driver. The display panel includes a display area configured to display an image and a non-display area adjacent to a side of the display area in a first direction. The display area includes gate lines, data lines, gate dummy lines, data contact parts, and pixels. The data lines cross the gate lines and are insulated from at least a portion of the gate lines. The gate dummy lines are substantially in parallel to the gate lines and spaced from the gate lines. The data contact parts couple the gate dummy lines to the data lines at a side of the display panel in a second direction substantially perpendicular to the first direction. The pixels are coupled to the gate lines and the data lines.
    Type: Application
    Filed: March 11, 2019
    Publication date: July 4, 2019
    Inventors: Sangjin Jeon, Ilgon Kim, Dong-Won Park, Bonghyun You, Junki Jeong
  • Publication number: 20190147831
    Abstract: A display device may include a timing controller, a data driver and a plurality of pixels. The timing controller supplies a clock training pattern over a data/clock signal line in a first time period, and supplies pixel/control data over the data/clock signal line in a second time period. The data driver generates a clock signal, using the clock training pattern, in the first period, and generate a plurality of data voltages based on the plurality of pixel data, using the clock signal, in the second period. The plurality of pixels receive the plurality of data voltages and emit corresponding light. During the second period, the data driver outputs a feedback signal to the timing controller indicating that the locking of the clock signal has failed. The timing controller re-supplies the clock training pattern in response to the feedback signal.
    Type: Application
    Filed: July 26, 2018
    Publication date: May 16, 2019
    Inventors: Jae Han LEE, Myeong Su KIM, Sun Koo KANG, Bo Yeon KIM, Dong Won PARK, Tae Gon IM, Jung Hwan CHO