Patents by Inventor Keum-Nam Kim

Keum-Nam Kim 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: 20210088978
    Abstract: A display device includes a substrate having a through-hole. The display device also includes a display unit formed on the substrate and surrounding the through-hole, and the display unit is configured to display an image and includes pixels.
    Type: Application
    Filed: December 4, 2020
    Publication date: March 25, 2021
    Inventors: KI NYENG KANG, KEUM NAM KIM, JONG HYUN CHOI
  • Patent number: 10877440
    Abstract: A display device includes a substrate having a through-hole. The display device also includes a display unit formed on the substrate and surrounding the through-hole, and the display unit is configured to display an image and includes pixels.
    Type: Grant
    Filed: August 6, 2019
    Date of Patent: December 29, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ki Nyeng Kang, Keum Nam Kim, Jong Hyun Choi
  • Patent number: 10877617
    Abstract: A touch panel includes a touch sensing circuit including a plurality of driving electrode lines and a plurality of sensing electrode lines, which intersect the driving electrode lines. The touch panel further includes a driving signal generation circuit that generates a plurality of driving signals and transmits the driving signals to the driving electrode lines, and a sensing circuit that receives a plurality of sensing signals from the sensing electrode lines. The driving signals have voltages that are not equal to zero during a first time zone, and the sum of driving signals generated at the same time is maintained to be equal to zero during the first time zone.
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: December 29, 2020
    Assignees: SAMSUNG DISPLAY CO., LTD., ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Won Sang Park, Seong Mun Kim, Yun Ho Kim, Il Nam Kim, Kyeong Min Park, Franklin Bien, Joo Hyeb Song, Keum Dong Jung, Eun Ho Choi, Sang Hyun Heo
  • Publication number: 20200311373
    Abstract: There are provided a fingerprint sensor and a display device including the same. The fingerprint sensor includes a base substrate in which a first sensing region and a second sensing region are defined on a plane, first photo sensors disposed on the first sensing region of the base substrate, and second photo sensors disposed on the second sensing region of the base substrate. The first sensing region has an area larger than that of the second sensing region, and the first photo sensor has a width wider than that of the second photo sensor.
    Type: Application
    Filed: February 20, 2020
    Publication date: October 1, 2020
    Inventors: SOO JUNG LEE, KEUM DONG JUNG, YU NA KIM, IL NAM KIM
  • Patent number: 10777131
    Abstract: A pixel of an organic light emitting display device includes a first transistor connected between a data line and a first node, a second transistor connected between a second node and a third node, a third transistor connected between the second node and a fourth node, a fourth transistor connected between the first node and the second node, a fifth transistor connected between the third node and an initializing power source, a sixth transistor connected between a first power source and the third node, a capacitor connected between the first node and the fourth node, and an organic light emitting diode (OLED) connected between the second node and a second power source.
    Type: Grant
    Filed: July 20, 2016
    Date of Patent: September 15, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Keum Nam Kim, Dong Woo Kim, Yang Hwa Choi
  • Patent number: 10699616
    Abstract: In a scan driver including a plurality of stages configured to supply scan signals to scan lines, the scan driver includes: an i?1th stage configured to supply an i?1th scan signal to an i?1th scan line while controlling a node Qi?1 (i is a natural number) in response to a first clock signal, a third clock signal, and a control voltage; an ith stage configured to supply an ith scan signal to an ith scan line while controlling a node Qi in response to a second clock signal, a fourth clock signal, and the control voltage; and a controller connected to the i?1th stage and the ith stage, and configured to supply the control voltage.
    Type: Grant
    Filed: June 25, 2018
    Date of Patent: June 30, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jun Hyun Park, Keum Nam Kim, Sung Hwan Kim, Kyoung Ju Shin
  • Patent number: 10650213
    Abstract: A fingerprint sensing device includes: a fingerprint sensor including scan lines and initialization lines extending in a first direction and arranged in a second direction, sensing lines extending in the second direction and arranged in the first direction, and sensing pixels connected to the scan lines, the initialization lines, and the sensing lines and disposed in a matrix configuration; a scan driver configured to apply an enable-level initialization signal to a-numbered sensing pixel rows while applying a disable-level initialization signal to b-numbered sensing pixel rows, and applying an enable-level scan signal to one sensing pixel row in the b-numbered sensing pixel rows; and a sensing driver configured to receive a sensing signal from the sensing pixel row to which the scan signal is applied through the sensing lines, wherein the a and b are positive numbers that are greater than 2.
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: May 12, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Keum Dong Jung, Ki Seo Kim, Il Nam Kim, Jae-Kyoung Kim, Kyung Tea Park, Jong In Baek
  • Publication number: 20200065541
    Abstract: A fingerprint recognition device including: a sensing panel including a plurality of sensing blocks, wherein each of the sensing blocks includes a plurality of sensors; a scan driving unit configured to provide a scan signal to the sensors; and a timing controller configured to provide a second initiation signal to the scan driving unit, wherein each of the sensors includes a reference capacitor and a sensing capacitor, the scan driving unit includes scan drivers that correspond to rows of the sensing blocks, in a fingerprint recognition mode, the timing controller provides the second initiation signal to a scan driver corresponding to a sensing block where a touch input is generated, and in a touch mode, the timing controller sequentially provides the second initiation signal to the scan drivers.
    Type: Application
    Filed: August 20, 2019
    Publication date: February 27, 2020
    Inventors: Keum Dong Jung, Il Nam Kim, Kyung Tea Park, Jin Oh Kwag, Won Sang Park, Sung Chan Jo
  • Patent number: 10572085
    Abstract: A fingerprint sensor including first, second, and third lines, and a unit sensor coupled to the first, the second, and the third lines. The unit sensor includes a pixel electrode coupled between the first line and the second line, a first capacitance element coupled between the first line and the pixel electrode, a second capacitance element coupled between the second line and the pixel electrode, a switching element coupled between the pixel electrode and one of the first line, the second line, a first line of an adjacent unit sensor, and a second line of the adjacent unit sensor, and including a control electrode coupled to the third line, and a third capacitance element coupled between the third line and the pixel electrode, in which at least one of the first and the second capacitance elements includes a variable capacitance element.
    Type: Grant
    Filed: June 11, 2018
    Date of Patent: February 25, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Keum Dong Jung, Ki Seo Kim, Il Nam Kim, Kyung Tea Park, Yun Ho Kim, Jae Kyoung Kim, Won Sang Park, Jong In Baek
  • Patent number: 10523812
    Abstract: Provided is a method, a system, an apparatus, and/or a non-transitory computer readable medium for providing a ringback tone and a ringtone using a Voice over Internet Protocol (VoIP) call service. A call method may provide sound sources directly edited by users as a ringtone or a ringback tone in a VoIP call service.
    Type: Grant
    Filed: May 15, 2017
    Date of Patent: December 31, 2019
    Assignee: Line Corporation
    Inventors: Deok Yong Ahn, Sanghyuk Suh, Keum Ryong Kim, Tae Jeong Lee, Jaehyun Lee, Min Jeong Kim, Hee Nam Byun, Jeongrok Kim, Hwan Kim, Seung Wook Choi
  • Publication number: 20190361405
    Abstract: A display device includes a substrate having a through-hole. The display device also includes a display unit formed on the substrate and surrounding the through-hole, and the display unit is configured to display an image and includes pixels.
    Type: Application
    Filed: August 6, 2019
    Publication date: November 28, 2019
    Inventors: Ki Nyeng Kang, Keum Nam Kim, Jong Hyun Choi
  • Publication number: 20190339803
    Abstract: A touch panel includes a touch sensing circuit including a plurality of driving electrode lines and a plurality of sensing electrode lines, which intersect the driving electrode lines. The touch panel further includes a driving signal generation circuit that generates a plurality of driving signals and transmits the driving signals to the driving electrode lines, and a sensing circuit that receives a plurality of sensing signals from the sensing electrode lines. The driving signals have voltages that are not equal to zero during a first time zone, and the sum of driving signals generated at the same time is maintained to be equal to zero during the first time zone.
    Type: Application
    Filed: April 17, 2019
    Publication date: November 7, 2019
    Inventors: WON SANG PARK, SEONG MUN KIM, YUN HO KIM, IL NAM KIM, KYEONG MIN PARK, FRANKLIN BIEN, JOO HYEB SONG, KEUM DONG JUNG, EUN HO CHOI, SANG HYUN HEO
  • Patent number: 10372085
    Abstract: A display device includes a substrate having a through-hole. The display device also includes a display unit formed on the substrate and surrounding the through-hole, and the display unit is configured to display an image and includes pixels.
    Type: Grant
    Filed: October 22, 2018
    Date of Patent: August 6, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ki Nyeng Kang, Keum Nam Kim, Jong Hyun Choi
  • Publication number: 20190138123
    Abstract: A fingerprint sensor including first, second, and third lines, and a unit sensor coupled to the first, the second, and the third lines. The unit sensor includes a pixel electrode coupled between the first line and the second line, a first capacitance element coupled between the first line and the pixel electrode, a second capacitance element coupled between the second line and the pixel electrode, a switching element coupled between the pixel electrode and one of the first line, the second line, a first line of an adjacent unit sensor, and a second line of the adjacent unit sensor, and including a control electrode coupled to the third line, and a third capacitance element coupled between the third line and the pixel electrode, in which at least one of the first and the second capacitance elements includes a variable capacitance element.
    Type: Application
    Filed: June 11, 2018
    Publication date: May 9, 2019
    Inventors: Keum Dong JUNG, Ki Seo Kim, II Nam Kim, Kyung Tea Park, Yun Ho Kim, Jae Kyoung Kim, Won Sang Park, Jong In Baek
  • Publication number: 20190056699
    Abstract: A display device and an electronic watch including the same are disclosed. In one aspect, the display device includes a substrate having a through-hole. The display device also includes a display unit formed on the substrate and surrounding the through-hole, the display unit configured to display an image.
    Type: Application
    Filed: October 22, 2018
    Publication date: February 21, 2019
    Inventors: Ki Nyeng Kang, Keum Nam Kim, Jong Hyun Choi
  • Publication number: 20180308409
    Abstract: In a scan driver including a plurality of stages configured to supply scan signals to scan lines, the scan driver includes: an i?1th stage configured to supply an i?1th scan signal to an i?1th scan line while controlling a node Qi?1 (i is a natural number) in response to a first clock signal, a third clock signal, and a control voltage; an ith stage configured to supply an ith scan signal to an ith scan line while controlling a node Qi in response to a second clock signal, a fourth clock signal, and the control voltage; and a controller connected to the i?1th stage and the ith stage, and configured to supply the control voltage.
    Type: Application
    Filed: June 25, 2018
    Publication date: October 25, 2018
    Inventors: Jun Hyun Park, Keum Nam Kim, Sung Hwan Kim, Kyoung Ju Shin
  • Patent number: 10108149
    Abstract: A display device includes a substrate having a through-hole. The display device also includes a display unit formed on the substrate and surrounding the through-hole, the display unit configured to display an image, and the display unit includes pixels.
    Type: Grant
    Filed: January 18, 2016
    Date of Patent: October 23, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ki Nyeng Kang, Keum Nam Kim, Jong Hyun Choi
  • Patent number: 10074305
    Abstract: A pixel includes a driving transistor including a gate connected to a first node, a first electrode connected to a second node, and a second electrode connected to an OLED, a first transistor configured to receive a first emission control signal and connected between a first power source and the second node, a second transistor configured to receive a scan signal and connected between the first and second nodes, a third transistor configured to receive the scan signal and including a first electrode configured to receive a data voltage, and a second electrode connected to a third node, a fourth transistor configured to receive a second emission control signal and connected between the third node and the OLED, a fifth transistor configured to receive the scan signal and connected between the OLED and an initializing power source, and a storage capacitor connected between the first node and the third node.
    Type: Grant
    Filed: August 9, 2016
    Date of Patent: September 11, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yang Hwa Choi, Keum Nam Kim, Dong Woo Kim
  • Patent number: 10008143
    Abstract: In a scan driver including a plurality of stages configured to supply scan signals to scan lines, the scan driver includes: an i?1th stage configured to supply an i?1th scan signal to an i?1th scan line while controlling a node Qi?1 (i is a natural number) in response to a first clock signal, a third clock signal, and a control voltage; an ith stage configured to supply an ith scan signal to an ith scan line while controlling a node Qi in response to a second clock signal, a fourth clock signal, and the control voltage; and a controller connected to the i?1th stage and the ith stage, and configured to supply the control voltage.
    Type: Grant
    Filed: April 6, 2016
    Date of Patent: June 26, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jun Hyun Park, Keum Nam Kim, Sung Hwan Kim, Kyoung Ju Shin
  • Patent number: 9767753
    Abstract: A scan driver includes a plurality of stages configured to supply scan signals to scan lines. An ith (i is a natural number) stage of the stages at one side of a panel includes: a first transistor connected between a first input terminal and a first node, and including a gate electrode connected to a second input terminal; a second transistor connected between a third input terminal and a first output terminal for outputting an ith scan signal of the scan signals, and including a gate electrode connected to the first node; a third transistor connected between the first output terminal and a first power input terminal configured to receive a first off voltage, and including a gate electrode connected to the second input terminal; and a first capacitor connected between the first node and the first output terminal.
    Type: Grant
    Filed: April 21, 2016
    Date of Patent: September 19, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jun Hyun Park, Keum Nam Kim, Sung Hwan Kim, Kyoung Ju Shin