Patents by Inventor Ja-Seung Ku

Ja-Seung Ku 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: 20240281090
    Abstract: A display device includes a touch panel including touch electrodes and a touch controller. The touch controller provides a driving signal to the touch electrodes and detects a touch and a touch position by sensing a change in values of capacitance formed between the touch electrodes and a common electrode. The touch controller includes a first touch driving IC corresponding to first touch electrodes in a first sensing area and a second touch driving IC corresponding to second touch electrodes included in a second sensing area. A first driving signal provided to the first touch electrodes from the first touch driving IC and a second driving signal provided to the second touch electrodes from the second touch driving IC have different frequencies.
    Type: Application
    Filed: August 29, 2023
    Publication date: August 22, 2024
    Inventors: JA SEUNG KU, JIN WOO KIM, JIN TAEK HONG
  • Patent number: 12032787
    Abstract: A sensor device includes: first sensors; second sensors which forms a capacitance with the first sensors; and a sensor driver which transmits driving signals to the first sensors through first sensor lines, and receives sensing signals from the second sensors through second sensor lines. The sensor driver sequentially transmits the driving signals to the first sensors, and transmits, during each period of transmitting the driving signals, an offset signal, which is identical in frequency to and different in phase from the driving signals, to at least one selected from first sensors which does not receive the driving signals among the first sensor. The sensor driver sets at least one selected from a slew rate and a voltage level of the offset signal to a value different from a corresponding value of a corresponding driving signal.
    Type: Grant
    Filed: April 17, 2023
    Date of Patent: July 9, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jin Taek Hong, Ja Seung Ku
  • Publication number: 20240192801
    Abstract: A sensor device including: a sensor array including sensor nodes; signal lines connected to the sensor nodes; and a sensor driver configured to: select each of the sensor nodes through the signal lines to sense a touch of a user that is adjacent to the sensor array; apply, through a first signal line, a first pulse signal to at least one first sensor node adjacent to the selected sensor node among the sensor nodes; and apply, through a second signal line, a second pulse signal having a polarity reverse to a polarity of the first pulse signal to at least one second sensor node among the sensor nodes, wherein the sensor driver electrically connects the first signal line to the second signal line to adjust voltage levels of the first and the second pulse signals.
    Type: Application
    Filed: August 14, 2023
    Publication date: June 13, 2024
    Inventors: Jin Taek HONG, Ja Seung KU, Jin Woo KIM
  • Publication number: 20240077973
    Abstract: A sensor device includes: a sensor panel including sensors arranged in a matrix form and sensor lines electrically connected to the sensors one-to-one; and a sensor driver configured to receive sensing signals from the sensors through the sensor lines, wherein the sensor driver is configured to simultaneously receive a first sensing signal from a first sensor using a first reference signal and a second sensing signal from a second sensor using a second reference signal, wherein the first reference signal and the second reference signal have a same waveform, a phase of the second reference signal is different from a phase of the first reference signal, and wherein a phase of the second sensing signal is different from a phase of the first sensing signal.
    Type: Application
    Filed: March 24, 2023
    Publication date: March 7, 2024
    Inventors: Jin Woo KIM, Ja Seung KU, Chang Bum KIM, Dong Chun LEE
  • Publication number: 20240069674
    Abstract: A sensor device includes: first sensors; second sensors which forms a capacitance with the first sensors; and a sensor driver which transmits driving signals to the first sensors through first sensor lines, and receives sensing signals from the second sensors through second sensor lines. The sensor driver sequentially transmits the driving signals to the first sensors, and transmits, during each period of transmitting the driving signals, an offset signal, which is identical in frequency to and different in phase from the driving signals, to at least one selected from first sensors which does not receive the driving signals among the first sensor. The sensor driver sets at least one selected from a slew rate and a voltage level of the offset signal to a value different from a corresponding value of a corresponding driving signal.
    Type: Application
    Filed: April 17, 2023
    Publication date: February 29, 2024
    Inventors: Jin Taek HONG, Ja Seung KU
  • Patent number: 11729913
    Abstract: A display device includes a display panel including a front surface and a rear surface, a first circuit board electrically connected to a first side of the display panel, a second circuit board electrically connected to a second side opposite to the first side of the display panel, a third circuit board disposed on the rear surface and electrically connected to the first circuit board and the second circuit board, the third circuit board extending in a first direction, and a support plate disposed on the rear surface. The display panel is foldable along a folding line extending in a second direction. The support plate has a first opening extending along the folding line, and an opening pattern near a portion of the first opening. The third circuit board overlaps the portion of the first opening. The opening pattern includes slits and the third circuit board overlaps the slits.
    Type: Grant
    Filed: June 28, 2022
    Date of Patent: August 15, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seung Hwa Ha, Ja Seung Ku, Seung-Ho Jung, In-Woo Jeong
  • Patent number: 11669196
    Abstract: A display device includes: a first base member configured to be folded or unfolded along a folding axis and including a display area including a first display area disposed on one side of the folding axis, a second display area disposed on another side of the folding axis, and a third display area through which the folding axis passes; and a plurality of first sensing electrodes and a plurality of second sensing electrodes disposed in each of the first display area, the second display area, and the third display area on the first base member. Each of the plurality of first sensing electrodes and each of the plurality of second sensing electrodes are spaced apart from each other based on the folding axis interposed therebetween.
    Type: Grant
    Filed: February 28, 2022
    Date of Patent: June 6, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventor: Ja Seung Ku
  • Patent number: 11635865
    Abstract: A display device and a method of driving a display device. The display device includes a housing, a display touch module including a non-exposed area covered by the housing, an exposed area located outside the housing, and an active area over the non-exposed area and the exposed area. The display touch module includes a display member configured to display an image and a touch member on the display member configured to sense a touch input. The display device also includes a boundary determining member configured to sense a capacitance of the touch member and calculate coordinates of an exposure boundary between the exposed area and non-exposed area of the display touch module. The display device is configured to adjust a display range of the active area according to the coordinates of the exposure boundary calculated by the boundary determining member.
    Type: Grant
    Filed: August 10, 2021
    Date of Patent: April 25, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Su Hyun Jeong, Ja Seung Ku, Soo Won Kim, Ye Rin Oh
  • Publication number: 20230012581
    Abstract: A display device includes a flexible display panel in which a valid display area viewable to a user is extended or reduced, a touch sensing part overlapping the flexible display panel and including first sensing electrodes and second sensing electrodes intersecting the first sensing electrodes, a touch driver for providing driving signals to the first sensing electrodes, and detecting a touch by using sensing signals supplied from the second sensing electrodes, and a display driver for driving the flexible display panel such that an image is displayed in the valid display area. The touch driver controls at least one of hidden driving signals and hidden sensing signals, which correspond to a hidden display area of the flexible display panel which is not viewable to the user, to be different from at least one of the driving signals and the sensing signals, which correspond to the valid display area.
    Type: Application
    Filed: June 15, 2022
    Publication date: January 19, 2023
    Inventors: Soo Won Kim, Ja Seung Ku
  • Publication number: 20220338351
    Abstract: A display device includes a display panel including a front surface and a rear surface, a first circuit board electrically connected to a first side of the display panel, a second circuit board electrically connected to a second side opposite to the first side of the display panel, a third circuit board disposed on the rear surface and electrically connected to the first circuit board and the second circuit board, the third circuit board extending in a first direction, and a support plate disposed on the rear surface. The display panel is foldable along a folding line extending in a second direction. The support plate has a first opening extending along the folding line, and an opening pattern near a portion of the first opening. The third circuit board overlaps the portion of the first opening. The opening pattern includes slits and the third circuit board overlaps the slits.
    Type: Application
    Filed: June 28, 2022
    Publication date: October 20, 2022
    Inventors: Seung Hwa HA, Ja Seung KU, Seung-Ho JUNG, In-Woo JEONG
  • Patent number: 11436854
    Abstract: A display device includes a display panel disposed in a first non-folding region, a second non-folding region, and a folding region located between the first and second non-folding regions. The display device further includes first and second buffer members disposed on one surface of the display panel in the first and second non-folding regions, respectively, and a metal layer disposed in the first non-folding region, the second non-folding region, and the folding region on one surface of the first buffer member and one surface of the second buffer member. The display device further includes a fingerprint sensor disposed on the metal layer. The first and second buffer members are separated with the folding region therebetween. The metal layer includes first, second, and third metal portions located in the first non-folding region, the second non-folding region, and the folding region, respectively. The fingerprint sensor is attached to the third metal portion.
    Type: Grant
    Filed: July 26, 2021
    Date of Patent: September 6, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seung Hwa Ha, Ja Seung Ku, Seung Ho Jung
  • Patent number: 11412614
    Abstract: A display device includes a display panel including a front surface and a rear surface, a first circuit board electrically connected to a first side of the display panel, a second circuit board electrically connected to a second side opposite to the first side of the display panel, a third circuit board disposed on the rear surface and electrically connected to the first circuit board and the second circuit board, the third circuit board extending in a first direction, and a support plate disposed on the rear surface. The display panel is foldable along a folding line extending in a second direction. The support plate has a first opening extending along the folding line, and an opening pattern near a portion of the first opening. The third circuit board overlaps the portion of the first opening. The opening pattern includes slits and the third circuit board overlaps the slits.
    Type: Grant
    Filed: July 30, 2020
    Date of Patent: August 9, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seung Hwa Ha, Ja Seung Ku, Seung-Ho Jung, In-Woo Jeong
  • Publication number: 20220190061
    Abstract: A display panel includes: a base layer including an emission area and a sensor area; a pixel circuit disposed on the emission area of the base layer; illuminance sensors disposed on the sensor area of the base layer, each of the illuminance sensors including a light receiving element overlapping the sensor area, the light receiving element disposed to be adjacent to the pixel circuit; light emitting elements disposed on the pixel circuit, each of the light emitting elements including a light emitting layer overlapping the emission area; a black matrix including openings overlapping the light emitting layer; and a color filter disposed on the light emitting elements and the black matrix.
    Type: Application
    Filed: October 1, 2021
    Publication date: June 16, 2022
    Inventors: Jong In Baek, Seong Jun Lee, Ja Seung Ku, Wang Jo Lee
  • Publication number: 20220179539
    Abstract: A display device includes: a first base member configured to be folded or unfolded along a folding axis and including a display area including a first display area disposed on one side of the folding axis, a second display area disposed on another side of the folding axis, and a third display area through which the folding axis passes; and a plurality of first sensing electrodes and a plurality of second sensing electrodes disposed in each of the first display area, the second display area, and the third display area on the first base member. Each of the plurality of first sensing electrodes and each of the plurality of second sensing electrodes are spaced apart from each other based on the folding axis interposed therebetween.
    Type: Application
    Filed: February 28, 2022
    Publication date: June 9, 2022
    Inventor: Ja Seung KU
  • Publication number: 20220083176
    Abstract: A display device and a method of driving a display device. The display device includes a housing, a display touch module including a non-exposed area covered by the housing, an exposed area located outside the housing, and an active area over the non-exposed area and the exposed area. The display touch module includes a display member configured to display an image and a touch member on the display member configured to sense a touch input. The display device also includes a boundary determining member configured to sense a capacitance of the touch member and calculate coordinates of an exposure boundary between the exposed area and non-exposed area of the display touch module. The display device is configured to adjust a display range of the active area according to the coordinates of the exposure boundary calculated by the boundary determining member.
    Type: Application
    Filed: August 10, 2021
    Publication date: March 17, 2022
    Inventors: Su Hyun JEONG, Ja Seung KU, Soo Won KIM, Ye Rin OH
  • Patent number: 11262866
    Abstract: A display device includes: a first base member configured to be folded or unfolded along a folding axis and including a display area including a first display area disposed on one side of the folding axis, a second display area disposed on another side of the folding axis, and a third display area through which the folding axis passes; and a plurality of first sensing electrodes and a plurality of second sensing electrodes disposed in each of the first display area, the second display area, and the third display area on the first base member. Each of the plurality of first sensing electrodes and each of the plurality of second sensing electrodes are spaced apart from each other based on the folding axis interposed therebetween.
    Type: Grant
    Filed: November 16, 2020
    Date of Patent: March 1, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventor: Ja Seung Ku
  • Publication number: 20210349497
    Abstract: A display device includes a display panel disposed in a first non-folding region, a second non-folding region, and a folding region located between the first and second non-folding regions. The display device further includes first and second buffer members disposed on one surface of the display panel in the first and second non-folding regions, respectively, and a metal layer disposed in the first non-folding region, the second non-folding region, and the folding region on one surface of the first buffer member and one surface of the second buffer member. The display device further includes a fingerprint sensor disposed on the metal layer. The first and second buffer members are separated with the folding region therebetween. The metal layer includes first, second, and third metal portions located in the first non-folding region, the second non-folding region, and the folding region, respectively. The fingerprint sensor is attached to the third metal portion.
    Type: Application
    Filed: July 26, 2021
    Publication date: November 11, 2021
    Inventors: Seung Hwa HA, Ja Seung Ku, Seung Ho Jung
  • Publication number: 20210303121
    Abstract: A display device includes: a first base member configured to be folded or unfolded along a folding axis and including a display area including a first display area disposed on one side of the folding axis, a second display area disposed on another side of the folding axis, and a third display area through which the folding axis passes; and a plurality of first sensing electrodes and a plurality of second sensing electrodes disposed in each of the first display area, the second display area, and the third display area on the first base member. Each of the plurality of first sensing electrodes and each of the plurality of second sensing electrodes are spaced apart from each other based on the folding axis interposed therebetween.
    Type: Application
    Filed: November 16, 2020
    Publication date: September 30, 2021
    Inventor: Ja Seung KU
  • Publication number: 20210259110
    Abstract: A display device includes a display panel including a front surface and a rear surface, a first circuit board electrically connected to a first side of the display panel, a second circuit board electrically connected to a second side opposite to the first side of the display panel, a third circuit board disposed on the rear surface and electrically connected to the first circuit board and the second circuit board, the third circuit board extending in a first direction, and a support plate disposed on the rear surface. The display panel is foldable along a folding line extending in a second direction. The support plate has a first opening extending along the folding line, and an opening pattern near a portion of the first opening. The third circuit board overlaps the portion of the first opening. The opening pattern includes slits and the third circuit board overlaps the slits.
    Type: Application
    Filed: July 30, 2020
    Publication date: August 19, 2021
    Inventors: Seung Hwa HA, Ja Seung KU, Seung-Ho JUNG, In-Woo JEONG
  • Patent number: 11073864
    Abstract: A display device includes a display panel disposed in a first non-folding region, a second non-folding region, and a folding region located between the first and second non-folding regions. The display device further includes first and second buffer members disposed on one surface of the display panel in the first and second non-folding regions, respectively, and a metal layer disposed in the first non-folding region, the second non-folding region, and the folding region on one surface of the first buffer member and one surface of the second buffer member. The display device further includes a fingerprint sensor disposed on the metal layer. The first and second buffer members are separated with the folding region therebetween. The metal layer includes first, second, and third metal portions located in the first non-folding region, the second non-folding region, and the folding region, respectively. The fingerprint sensor is attached to the third metal portion.
    Type: Grant
    Filed: April 24, 2020
    Date of Patent: July 27, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seung Hwa Ha, Ja Seung Ku, Seung Ho Jung