Patents by Inventor Ja Kyoung JIN

Ja Kyoung JIN 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: 12223914
    Abstract: A display device includes pixels including a light-emitting element, and an initialization transistor connected between an anode electrode of the light-emitting element and a first initialization power line to which a voltage of initialization power is supplied, and turned on when an initialization scan signal is supplied, and an initialization scan driver which supplies the initialization scan signal. The initial scan driver supplies an i-th (i is a natural number) initial scan signal to overlap an (i?1)-th initial scan signal, and supplies an (i+1)-th initial scan signal so as not to overlap the i-th initial scan signal, and the initialization scan signal is set to a gate-on voltage.
    Type: Grant
    Filed: June 6, 2023
    Date of Patent: February 11, 2025
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seong Oh Yeom, Yu Chol Kim, Ji Hye Kim, Jin Wook Yang, Eui Myeong Cho, Ja Kyoung Jin
  • Patent number: 12198617
    Abstract: A display device includes: a display panel including pixels having light-emitting elements; a timing control unit for variably changing the driving frame frequency of the display panel according to the input frame frequency of digital video data; and a data driving unit for outputting data voltages according to the digital video data, wherein the display panel operates at a first frame frequency for a first frame period and operates at a second frame frequency, which is lower than the first frame frequency, for a second frame period, the second frame period includes a data addressing period in which a data voltage corresponding to each of the pixels is applied to the pixels, and a blank period in which no data voltage is applied to each of the pixels, and the blank period includes a period of initializing a first electrode of a light-emitting element into an initialization voltage.
    Type: Grant
    Filed: August 23, 2021
    Date of Patent: January 14, 2025
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ji Hye Kim, Joon Chul Goh, Yu Chol Kim, Jin Wook Yang, Ja Kyoung Jin
  • Patent number: 12020652
    Abstract: A display device includes: a pixel connected to a first scan line, a second scan line, and a data line, and including a light emitting element and a storage capacitor; and a timing controller configured to drive the pixel in a normal mode in which a driving frequency is maintained constant or a frequency variable mode according to a variable frequency signal supplied from outside, wherein in the normal mode, a first electrode voltage of the light emitting element is initialized in response to a data voltage being supplied to the storage capacitor, and wherein in the frequency variable mode, the first electrode voltage of the light emitting element is not initialized in response to the data voltage being supplied to the storage capacitor.
    Type: Grant
    Filed: July 1, 2021
    Date of Patent: June 25, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ja Kyoung Jin, Yu Chol Kim, Ji Hye Kim, Jin Wook Yang, Seong Oh Yeom
  • Publication number: 20240169926
    Abstract: A display device includes pixels including a light-emitting element, and an initialization transistor connected between an anode electrode of the light-emitting element and a first initialization power line to which a voltage of initialization power is supplied, and turned on when an initialization scan signal is supplied, and an initialization scan driver which supplies the initialization scan signal. The initial scan driver supplies an i-th (i is a natural number) initial scan signal to overlap an (i?1)-th initial scan signal, and supplies an (i+1)-th initial scan signal so as not to overlap the i-th initial scan signal, and the initialization scan signal is set to a gate-on voltage.
    Type: Application
    Filed: June 6, 2023
    Publication date: May 23, 2024
    Inventors: Seong Oh YEOM, Yu Chol KIM, Ji Hye KIM, Jin Wook YANG, Eui Myeong CHO, Ja Kyoung JIN
  • Publication number: 20240054948
    Abstract: A display device includes: a display panel including pixels having light-emitting elements; a timing control unit for variably changing the driving frame frequency of the display panel according to the input frame frequency of digital video data; and a data driving unit for outputting data voltages according to the digital video data, wherein the display panel operates at a first frame frequency for a first frame period and operates at a second frame frequency, which is lower than the first frame frequency, for a second frame period, the second frame period includes a data addressing period in which a data voltage corresponding to each of the pixels is applied to the pixels, and a blank period in which no data voltage is applied to each of the pixels, and the blank period includes a period of initializing a first electrode of a light-emitting element into an initialization voltage.
    Type: Application
    Filed: August 23, 2021
    Publication date: February 15, 2024
    Inventors: Ji Hye KIM, Joon Chul GOH, Yu Chol KIM, Jin Wook YANG, Ja Kyoung JIN
  • Patent number: 11710441
    Abstract: A display device includes a display area including a plurality of pixels and a plurality of scan lines connected to the plurality of pixels, and a driving circuit portion that generates a compensation data voltage to compensate for a difference in length between the plurality of scan lines to input the compensation data voltage to a pixel disposed in a first area, based on start scan line information indicating a start of the first area including scan lines of the plurality of scan lines, and end scan line information indicating an end of the first area.
    Type: Grant
    Filed: May 24, 2019
    Date of Patent: July 25, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ja Kyoung Jin, Tae Jin Kim
  • Patent number: 11694630
    Abstract: A display device includes a display panel including a pixel coupled to first to fourth scan lines, an emission control line, and a data line, a scan driver which supplies a first scan signal to the first scan line, a second scan signal to the second scan line, a third scan signal to the third scan line, and a fourth scan signal to the fourth scan line, an emission driver which supplies an emission control signal to the emission control line, a data driver which supplies a data signal to the data line, and a timing controller which controls the scan driver, the emission driver, and the data driver. Each of the second and third scan signals has a gate-on level during a partial period of one frame, and is maintained at a gate-off level during a remaining period of the one frame, other than the partial period.
    Type: Grant
    Filed: July 7, 2022
    Date of Patent: July 4, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ja Kyoung Jin, Yu Chol Kim, Ji Hye Kim, Seong Oh Yeom
  • Publication number: 20230088642
    Abstract: A display device includes a display panel including a pixel coupled to first to fourth scan lines, an emission control line, and a data line, a scan driver which supplies a first scan signal to the first scan line, a second scan signal to the second scan line, a third scan signal to the third scan line, and a fourth scan signal to the fourth scan line, an emission driver which supplies an emission control signal to the emission control line, a data driver which supplies a data signal to the data line, and a timing controller which controls the scan driver, the emission driver, and the data driver. Each of the second and third scan signals has a gate-on level during a partial period of one frame, and is maintained at a gate-off level during a remaining period of the one frame, other than the partial period.
    Type: Application
    Filed: July 7, 2022
    Publication date: March 23, 2023
    Inventors: Ja Kyoung JIN, Yu Chol KIM, Ji Hye KIM, Seong Oh YEOM
  • Publication number: 20220139333
    Abstract: A display device includes: a pixel connected to a first scan line, a second scan line, and a data line, and including a light emitting element and a storage capacitor; and a timing controller configured to drive the pixel in a normal mode in which a driving frequency is maintained constant or a frequency variable mode according to a variable frequency signal supplied from outside, wherein in the normal mode, a first electrode voltage of the light emitting element is initialized in response to a data voltage being supplied to the storage capacitor, and wherein in the frequency variable mode, the first electrode voltage of the light emitting element is not initialized in response to the data voltage being supplied to the storage capacitor.
    Type: Application
    Filed: July 1, 2021
    Publication date: May 5, 2022
    Inventors: Ja Kyoung JIN, Yu Chol KIM, Ji Hye KIM, Jin Wook YANG, Seong Oh YEOM
  • Patent number: 11132928
    Abstract: A horizontal line driver providing a scan signal to scan lines, and including: first scan signal output blocks providing the scan signal to scan lines in a first side display area, wherein each of the first scan signal output blocks include a first output buffer; second scan signal output blocks providing the scan signal to scan lines in a first front display area including curved edges, wherein each of the second scan signal output blocks include a second output buffer; and third scan signal output blocks providing the scan signal to scan lines in a second front display area. Each of the third scan signal output blocks include a third output buffer. The width of the first front display area is larger than a width of the first side display area but is smaller than a width of the second front display area, and the width gradually increases.
    Type: Grant
    Filed: June 11, 2019
    Date of Patent: September 28, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ja-Kyoung Jin, Tae-Jin Kim
  • Publication number: 20210248950
    Abstract: A display device includes a display area including a plurality of pixels and a plurality of scan lines connected to the plurality of pixels, and a driving circuit portion that generates a compensation data voltage to compensate for a difference in length between the plurality of scan lines to input the compensation data voltage to a pixel disposed in a first area, based on start scan line information indicating a start of the first area including scan lines of the plurality of scan lines, and end scan line information indicating an end of the first area.
    Type: Application
    Filed: May 24, 2019
    Publication date: August 12, 2021
    Inventors: Ja Kyoung JIN, Tae Jin KIM
  • Publication number: 20210134206
    Abstract: A horizontal line driver providing a scan signal to scan lines, and including: first scan signal output blocks providing the scan signal to scan lines in a first side display area, wherein each of the first scan signal output blocks include a first output buffer; second scan signal output blocks providing the scan signal to scan lines in a first front display area including curved edges, wherein each of the second scan signal output blocks include a second output buffer; and third scan signal output blocks providing the scan signal to scan lines in a second front display area. Each of the third scan signal output blocks include a third output buffer. The width of the first front display area is larger than a width of the first side display area but is smaller than a width of the second front display area, and the width gradually increases.
    Type: Application
    Filed: June 11, 2019
    Publication date: May 6, 2021
    Inventors: Ja-Kyoung JIN, Tae-Jin KIM
  • Patent number: 10802299
    Abstract: A display device includes: a display unit including scan lines, data lines, unit areas corresponding to intersections of the scan lines and the data lines, the unit areas including first unit areas in an effective display area, second unit areas in a dummy area around the effective display area, some of the second unit areas being smaller than the first unit areas, and pixels in the first unit areas; a timing controller configured to receive first data including image data corresponding to the first and second unit areas and to convert the first data into second data corresponding to the effective display area; and a data driver configured to generate a data signal corresponding to the second data. The display unit includes a first horizontal line having fewer pixels than the number of the data lines.
    Type: Grant
    Filed: August 19, 2019
    Date of Patent: October 13, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hong Soo Kim, Jun Heyung Jung, Ja Kyoung Jin
  • Patent number: 10732438
    Abstract: A display device includes: a display unit including scan lines, data lines, unit areas corresponding to intersections of the scan lines and the data lines, the unit areas including first unit areas in an effective display area, second unit areas in a dummy area around the effective display area, some of the second unit areas being smaller than the first unit areas, and pixels in the first unit areas; a timing controller configured to receive first data including image data corresponding to the first and second unit areas and to convert the first data into second data corresponding to the effective display area; and a data driver configured to generate a data signal corresponding to the second data. The display unit includes a first horizontal line having fewer pixels than the number of the data lines.
    Type: Grant
    Filed: August 19, 2019
    Date of Patent: August 4, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hong Soo Kim, Jun Heyung Jung, Ja Kyoung Jin
  • Patent number: 10600368
    Abstract: An organic light-emitting display device including a substrate on which a display area is provided, the display area including a central display area including a first pixel unit, a first edge display area extending from the central display area along a first direction, and a second edge display area including a second pixel unit and extending from the central display area along a second direction that intersects the first direction, and a first signal wiring unit overlapping with the first and second edge display areas, the first signal wiring unit being configured to provide a first scan signal having a first turn-on period to the first pixel unit and to provide a second scan signal having a second turn-on period to the second pixel unit, wherein the first edge display area is bent along a first bending line, which extends along the first direction.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: March 24, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Tae Jin Kim, Ja Kyoung Jin
  • Publication number: 20190369419
    Abstract: A display device includes: a display unit including scan lines, data lines, unit areas corresponding to intersections of the scan lines and the data lines, the unit areas including first unit areas in an effective display area, second unit areas in a dummy area around the effective display area, some of the second unit areas being smaller than the first unit areas, and pixels in the first unit areas; a timing controller configured to receive first data including image data corresponding to the first and second unit areas and to convert the first data into second data corresponding to the effective display area; and a data driver configured to generate a data signal corresponding to the second data. The display unit includes a first horizontal line having fewer pixels than the number of the data lines.
    Type: Application
    Filed: August 19, 2019
    Publication date: December 5, 2019
    Inventors: Hong Soo KIM, Jun Heyung JUNG, Ja Kyoung JIN
  • Patent number: 10386658
    Abstract: A display device includes: a display unit including scan lines, data lines, unit areas corresponding to intersections of the scan lines and the data lines, the unit areas including first unit areas in an effective display area, second unit areas in a dummy area around the effective display area, some of the second unit areas being smaller than the first unit areas, and pixels in the first unit areas; a timing controller configured to receive first data including image data corresponding to the first and second unit areas and to convert the first data into second data corresponding to the effective display area; and a data driver configured to generate a data signal corresponding to the second data. The display unit includes a first horizontal line having fewer pixels than the number of the data lines.
    Type: Grant
    Filed: October 2, 2018
    Date of Patent: August 20, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hong Soo Kim, Jun Heyung Jung, Ja Kyoung Jin
  • Publication number: 20190108793
    Abstract: An organic light-emitting display device including a substrate on which a display area is provided, the display area including a central display area including a first pixel unit, a first edge display area extending from the central display area along a first direction, and a second edge display area including a second pixel unit and extending from the central display area along a second direction that intersects the first direction, and a first signal wiring unit overlapping with the first and second edge display areas, the first signal wiring unit being configured to provide a first scan signal having a first turn-on period to the first pixel unit and to provide a second scan signal having a second turn-on period to the second pixel unit, wherein the first edge display area is bent along a first bending line, which extends along the first direction.
    Type: Application
    Filed: September 17, 2018
    Publication date: April 11, 2019
    Inventors: Tae Jin Kim, Ja Kyoung Jin
  • Publication number: 20190033626
    Abstract: A display device includes: a display unit including scan lines, data lines, unit areas corresponding to intersections of the scan lines and the data lines, the unit areas including first unit areas in an effective display area, second unit areas in a dummy area around the effective display area, some of the second unit areas being smaller than the first unit areas, and pixels in the first unit areas; a timing controller configured to receive first data including image data corresponding to the first and second unit areas and to convert the first data into second data corresponding to the effective display area; and a data driver configured to generate a data signal corresponding to the second data. The display unit includes a first horizontal line having fewer pixels than the number of the data lines.
    Type: Application
    Filed: October 2, 2018
    Publication date: January 31, 2019
    Inventors: Hong Soo Kim, Jun Heyung Jung, Ja Kyoung Jin
  • Patent number: 10114236
    Abstract: A display device includes: a display unit including scan lines, data lines, unit areas corresponding to intersections of the scan lines and the data lines, the unit areas including first unit areas in an effective display area, second unit areas in a dummy area around the effective display area, some of the second unit areas being smaller than the first unit areas, and pixels in the first unit areas; a timing controller configured to receive first data including image data corresponding to the first and second unit areas and to convert the first data into second data corresponding to the effective display area; and a data driver configured to generate a data signal corresponding to the second data. The display unit includes a first horizontal line having fewer pixels than the number of the data lines.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: October 30, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hong Soo Kim, Jun Heyung Jung, Ja Kyoung Jin