Patents by Inventor Taehyeong An

Taehyeong An 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: 11900888
    Abstract: An electronic device is disclosed that includes a display panel, a data driving circuit, a scan driving circuit, and a driving controller. The driving controller generates image data based on a received image signal. The driving controller includes a minimum emission gray level determining unit that determines a gray level of the image signal, a pattern determining unit that determines a dither pattern of the image signal, a driving frequency sensing unit that determines a driving frequency of the image signal, and a data compensation unit that compensates for the image data based on the gray level and at least one of the dither pattern and the driving frequency.
    Type: Grant
    Filed: September 22, 2022
    Date of Patent: February 13, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Taehyeong An, Jinpil Kim, Joon-Chul Goh, Dongjoon Kwag, Jaesung Bae
  • Publication number: 20230368732
    Abstract: A display device is disclosed that includes a display panel which includes a pixel, a driving controller which receives an input image signal and outputs an output image signal, and a data driving circuit which provides a data signal corresponding to the output image signal to the pixel. The pixel includes a light emitting device and a first transistor electrically connected to the light emitting device. The driving controller includes an initial threshold voltage map that stores an initial threshold voltage of the first transistor, a delta threshold voltage calculator that calculates a delta threshold voltage of the first transistor over an operating time based on the initial threshold voltage, a weight calculator that calculates a weight based on the initial threshold voltage and the delta threshold voltage, and a compensator that receives the input image signal and outputs an output image signal obtained by compensating for a threshold voltage of the first transistor based on the weight.
    Type: Application
    Filed: March 24, 2023
    Publication date: November 16, 2023
    Inventors: JAEHOON LEE, TAEHYEONG AN
  • Patent number: 11727887
    Abstract: Provided is an electronic device according to an embodiment of the inventive concept may include a display panel including a plurality of pixels respectively connected to a plurality of data lines and a plurality of scan lines, a data driving circuit connected to the plurality of data lines, a scan driving circuit connected to the plurality of scan lines, and a driving controller generating image data, and controlling the data driving circuit and the scan driving circuit to display a plurality of frames at a first frequency on the display panel based on the image data, wherein at least one of the plurality of frames includes an effective interval during which an image is transmitted, a blanking interval during which the image is not transmitted, and a refresh interval operating at a second frequency different from the first frequency.
    Type: Grant
    Filed: April 18, 2022
    Date of Patent: August 15, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yunki Baek, Taehyeong An, Joon-Chul Goh
  • Publication number: 20230222982
    Abstract: An electronic device is disclosed that includes a display panel, a data driving circuit, a scan driving circuit, and a driving controller. The driving controller generates image data based on a received image signal. The driving controller includes a minimum emission gray level determining unit that determines a gray level of the image signal, a pattern determining unit that determines a dither pattern of the image signal, a driving frequency sensing unit that determines a driving frequency of the image signal, and a data compensation unit that compensates for the image data based on the gray level and at least one of the dither pattern and the driving frequency.
    Type: Application
    Filed: September 22, 2022
    Publication date: July 13, 2023
    Inventors: TAEHYEONG AN, JINPIL KIM, JOON-CHUL GOH, DONGJOON KWAG, JAESUNG BAE
  • Publication number: 20230103193
    Abstract: Provided is an electronic device according to an embodiment of the inventive concept may include a display panel including a plurality of pixels respectively connected to a plurality of data lines and a plurality of scan lines, a data driving circuit connected to the plurality of data lines, a scan driving circuit connected to the plurality of scan lines, and a driving controller generating image data, and controlling the data driving circuit and the scan driving circuit to display a plurality of frames at a first frequency on the display panel based on the image data, wherein at least one of the plurality of frames includes an effective interval during which an image is transmitted, a blanking interval during which the image is not transmitted, and a refresh interval operating at a second frequency different from the first frequency.
    Type: Application
    Filed: April 18, 2022
    Publication date: March 30, 2023
    Inventors: YUNKI BAEK, TAEHYEONG AN, JOON-CHUL GOH
  • Patent number: 11092839
    Abstract: A display apparatus includes a backlight unit including a first light source for outputting a first color light, and a second light source for outputting a second color light that is different from the first color light, a switching element layer on the backlight unit, and including a plurality of switching elements, a liquid crystal layer on the switching element layer, and a color conversion layer on the liquid crystal layer, including a color-converting material for converting a color of light passing therethrough, including a first color area, a second color area, and a third color area, and including quantum dot particles.
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: August 17, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Nam-Gon Choi, Kyoung Ho Lim, Kangmin Kim, Jinpil Kim, Taehyeong An, Seokha Hong, Moon Shik Kang, Jaehoon Lee, Kunhee Jo, Seoung-Bum Pyoun
  • Patent number: 11043184
    Abstract: A display device includes a display panel comprising a plurality of pixels, a data driver configured to generate data voltages based on a gamma reference voltage, and to provide the data voltages to the plurality of pixels, a gate driver configured to provide gate signals to the plurality of pixels, and a controller configured to control the data driver and the gate driver. The controller is configured to initialize the gamma reference voltage when a blank period starts in a frame period comprising an active period and the blank period, and to change the gamma reference voltage when a duration of the blank period reaches at least one threshold time.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: June 22, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Taehyeong An, Jai-Hyun Koh, Hoi Sik Moon, Jae Sung Bae, Namjae Lim, Nam-Gon Choi
  • Patent number: 10950202
    Abstract: A display apparatus includes a local dimmer, an image compensator, a display panel and a light source. The local dimmer is configured to generate a dimming signal representing a degree of dimming for a light source block based on input image data. The image compensator is configured to determine a grayscale gain based on input grayscale value of the input image data and the dimming signal and to compensate luminance of the input image data based on the grayscale gain. The display panel is configured to display an image based on the compensated input image data. The light source is configured to provide light to the display panel based on the dimming signal.
    Type: Grant
    Filed: October 14, 2019
    Date of Patent: March 16, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Nam-Gon Choi, Hoi Sik Moon, Jai-Hyun Koh, Yoongu Kim, Namjae Lim, Seung Young Choi, JaeSung Bae, Taehyeong An, Byoung Seok Yoo
  • Patent number: 10909941
    Abstract: A liquid crystal display device and a driving method of the liquid crystal display device includes a display panel including a plurality of gate lines, a plurality of data lines crossing the gate lines, and a plurality of pixels coupled to the gate lines and the data lines, a gate driver configured to provide a gate signal to the pixels through the gate lines, a data driver configured to provide a data signal to the pixels through the data lines and a timing controller configured to receive an image data provided from an external device and generate control signals that control the gate driver and the data driver. The timing controller analyzes a pattern of the image data by every frame, and changes an inversion driving method and gamma voltages of the image data based on a pattern analyzing result from the analysis of the pattern of the image data.
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: February 2, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Taehyeong An, KyoungHo Lim, Soo-Yeon Lee, Jaehoon Lee, Nam-Gon Choi
  • Patent number: 10650759
    Abstract: A display apparatus including a display panel, a gate driving part and a data driving part. The display panel is configured to display an image, and includes a gate line and a data line. The gate driving part is configured to output a gate signal to the gate line. The data driving part is configured to output a data signal to the data line, and to change a transition time when the data signal transits from a low level to a high level, according to at least one of a change of an inversion method for driving the display panel, and a change of a frame frequency of the image.
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: May 12, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Taehyeong An, Jeongbong Lee, Yujin Kim, Gyuhun Han
  • Publication number: 20200118525
    Abstract: A display apparatus includes a local dimmer, an image compensator, a display panel and a light source. The local dimmer is configured to generate a dimming signal representing a degree of dimming for a light source block based on input image data. The image compensator is configured to determine a grayscale gain based on input grayscale value of the input image data and the dimming signal and to compensate luminance of the input image data based on the grayscale gain. The display panel is configured to display an image based on the compensated input image data. The light source is configured to provide light to the display panel based on the dimming signal.
    Type: Application
    Filed: October 14, 2019
    Publication date: April 16, 2020
    Inventors: Nam-Gon CHOI, Hoi Sik MOON, Jai-Hyun KOH, Yoongu KIM, Namjae LIM, Seung Young CHOI, JaeSung BAE, Taehyeong AN, Byoung Seok YOO
  • Publication number: 20200082781
    Abstract: A display device includes a display panel comprising a plurality of pixels, a data driver configured to generate data voltages based on a gamma reference voltage, and to provide the data voltages to the plurality of pixels, a gate driver configured to provide gate signals to the plurality of pixels, and a controller configured to control the data driver and the gate driver. The controller is configured to initialize the gamma reference voltage when a blank period starts in a frame period comprising an active period and the blank period, and to change the gamma reference voltage when a duration of the blank period reaches at least one threshold time.
    Type: Application
    Filed: July 26, 2019
    Publication date: March 12, 2020
    Inventors: Taehyeong AN, Jai-Hyun KOH, Hoi Sik MOON, Jae Sung BAE, Namjae LIM, Nam-Gon CHOI
  • Patent number: 10551903
    Abstract: A display apparatus includes a display panel and a power supply. The display panel displays an image at a first driving frequency in a normal mode and displays an image at a second driving frequency in a low power mode. The second driving frequency is lower than the first driving frequency. The power supply outputs a first initialization voltage at a first level to the display panel during an active period of the low power mode. The power supply outputs a second initialization voltage at a second level to the display panel during at least a portion of a blank period of the low power mode. The second level is higher than the first level.
    Type: Grant
    Filed: November 20, 2017
    Date of Patent: February 4, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Taehyeong An, Suhyeong Park, Soowan Yoon
  • Publication number: 20190204672
    Abstract: A display apparatus includes a backlight unit including a first light source for outputting a first color light, and a second light source for outputting a second color light that is different from the first color light, a switching element layer on the backlight unit, and including a plurality of switching elements, a liquid crystal layer on the switching element layer, and a color conversion layer on the liquid crystal layer, including a color-converting material for converting a color of light passing therethrough, including a first color area, a second color area, and a third color area, and including quantum dot particles.
    Type: Application
    Filed: December 28, 2018
    Publication date: July 4, 2019
    Inventors: Nam-Gon Choi, Kyoung Ho Lim, Kangmin Kim, Jinpil Kim, Taehyeong An, Seokha Hong, Moon Shik Kang, Jaehoon Lee, Kunhee Jo, Seoung-Bum Pyoun
  • Publication number: 20190206349
    Abstract: A liquid crystal display device and a driving method of the liquid crystal display device includes a display panel including a plurality of gate lines, a plurality of data lines crossing the gate lines, and a plurality of pixels coupled to the gate lines and the data lines, a gate driver configured to provide a gate signal to the pixels through the gate lines, a data driver configured to provide a data signal to the pixels through the data lines and a timing controller configured to receive an image data provided from an external device and generate control signals that control the gate driver and the data driver. The timing controller analyzes a pattern of the image data by every frame, and changes an inversion driving method and gamma voltages of the image data based on a pattern analyzing result from the analysis of the pattern of the image data.
    Type: Application
    Filed: December 28, 2018
    Publication date: July 4, 2019
    Inventors: Taehyeong AN, KyoungHo LIM, Soo-Yeon LEE, Jaehoon LEE, Nam-Gon CHOI
  • Publication number: 20180074569
    Abstract: A display apparatus includes a display panel and a power supply. The display panel displays an image at a first driving frequency in a normal mode and displays an image at a second driving frequency in a low power mode. The second driving frequency is lower than the first driving frequency. The power supply outputs a first initialization voltage at a first level to the display panel during an active period of the low power mode. The power supply outputs a second initialization voltage at a second level to the display panel during at least a portion of a blank period of the low power mode. The second level is higher than the first level.
    Type: Application
    Filed: November 20, 2017
    Publication date: March 15, 2018
    Inventors: Taehyeong An, Suhyeong Park, Soowan Yoon
  • Publication number: 20180061336
    Abstract: A display apparatus including a display panel, a gate driving part and a data driving part. The display panel is configured to display an image, and includes a gate line and a data line. The gate driving part is configured to output a gate signal to the gate line. The data driving part is configured to output a data signal to the data line, and to change a transition time when the data signal transits from a low level to a high level, according to at least one of a change of an inversion method for driving the display panel, and a change of a frame frequency of the image.
    Type: Application
    Filed: June 27, 2017
    Publication date: March 1, 2018
    Inventors: Taehyeong An, Jeongbong Lee, Yujin Kim, Gyuhun Han
  • Patent number: 9823729
    Abstract: A display apparatus includes a display panel and a power supply. The display panel displays an image at a first driving frequency in a normal mode and displays an image at a second driving frequency in a low power mode. The second driving frequency is lower than the first driving frequency. The power supply outputs a first initialization voltage at a first level to the display panel during an active period of the low power mode. The power supply outputs a second initialization voltage at a second level to the display panel during at least a portion of a blank period of the low power mode. The second level is higher than the first level.
    Type: Grant
    Filed: August 20, 2015
    Date of Patent: November 21, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Taehyeong An, Suhyeong Park, Soowan Yoon
  • Patent number: 9514712
    Abstract: A display device includes a display panel, a first timing controller, and a second timing controller. The display panel includes a first block and a second block adjacent to the first block, with a data line positioned between the first block and the second block. The first block includes a first column of pixels, and the second block includes a second column of pixels. The first and second columns of pixels are alternately connected to the data line. The first timing controller is configured to receive first image data corresponding to the first block. A second timing controller is configured to receive second image data corresponding to the second block. The first timing controller is configured to transfer at least part of the first mage data to the second timing controller.
    Type: Grant
    Filed: May 29, 2013
    Date of Patent: December 6, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dong-Won Park, Nam-Gon Choi, Geunjeong Park, Taehyeong An, Donggyu Lee, Yongjun Jang, Ji-woong Jeong
  • Publication number: 20160124491
    Abstract: A display apparatus includes a display panel and a power supply. The display panel displays an image at a first driving frequency in a normal mode and displays an image at a second driving frequency in a low power mode. The second driving frequency is lower than the first driving frequency. The power supply outputs a first initialization voltage at a first level to the display panel during an active period of the low power mode. The power supply outputs a second initialization voltage at a second level to the display panel during at least a portion of a blank period of the low power mode. The second level is higher than the first level.
    Type: Application
    Filed: August 20, 2015
    Publication date: May 5, 2016
    Inventors: Taehyeong AN, Suhyeong PARK, Soowan YOON