Patents by Inventor Il-Nam Kim

Il-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).

  • Patent number: 11024682
    Abstract: The fingerprint sensor may include: a light transmitting hole array layer including a plurality of light blocking patterns having a plurality of light transmitting holes to form light transmitting paths of light rays; a sensor layer including a plurality of photo sensors configured to sense light rays that pass through the light transmitting holes and are incident on the sensor layer; and metal patterns configured to apply electrical signals to pixels or the light blocking patterns. A gap between the light blocking patterns may overlap with at least some of the metal patterns.
    Type: Grant
    Filed: November 19, 2019
    Date of Patent: June 1, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Il Nam Kim, Yun Ho Kim, Ji Hun Ryu, Eun Jin Sung
  • Publication number: 20210132768
    Abstract: A touch sensor includes: a substrate that includes active and non-active regions; driving cells disposed on the active region that extend in a first direction; sensing cells disposed on the active region that extend in a second direction that intersects the first direction; a first connection pattern that connects adjacent driving cells; a second connection pattern that connects adjacent sensing cells; and a touch driver disposed on the non-active region that includes thin film transistors that transmit a driving signal to each of the driving cells. The thin film transistor includes: a semiconductor layer; a gate electrode disposed on the semiconductor layer with a first insulating layer interposed therebetween; and source and drain electrodes connected to the semiconductor layer and spaced apart from each other. The first connection pattern is disposed in the same layer as at least one of the source or drain electrodes or the gate electrode.
    Type: Application
    Filed: January 14, 2021
    Publication date: May 6, 2021
    Inventors: IL NAM KIM, Byeong Hee Won, Kyung Tea Park, Won Sang Park
  • Patent number: 10977468
    Abstract: An optical unit and a display device including same. The optical unit is for a fingerprint sensor of the display device, and the optical unit includes a first prism to block light rays incident at an angle greater than a detection target incident angle; and a second prism disposed under the first prism to block light rays incident at an angle less than the detection target incident angle.
    Type: Grant
    Filed: June 6, 2019
    Date of Patent: April 13, 2021
    Inventors: Ji Hun Ryu, Katsumasa Yoshii, Yun Ho Kim, Il Nam Kim, Eun Jin Sung
  • Publication number: 20210056282
    Abstract: A display device including a display panel having a display area including a plurality of pixels and a non-display area surrounding at least one side of the display area, a light blocking layer at least partially overlapping the display area and including opening portions for selectively passing incident light, and a power supply device configured to supply power to the pixels and the light blocking layer, in which the power supply device is configured to apply control power having a different voltage value in correspondence with a type of an image to be displayed in the display area to the light blocking layer, during a display period.
    Type: Application
    Filed: August 21, 2020
    Publication date: February 25, 2021
    Inventors: Il Nam KIM, Jae Kyoung KIM, Ji Hun RYU, Eun Jin SUNG, Seong Ryong LEE, Jong Hyun LEE
  • Patent number: 10928954
    Abstract: A touch sensor includes sensor pixels which provide output currents which change in response to a touch made by a user, a sensor scan driver coupled to the sensor pixels through sensor scan lines and supplies sensor scan signals to the sensor pixels, and a read-out circuit coupled to the sensor pixels through output lines, and senses a touch using the output currents. The sensor scan driver changes a scheme for supplying the sensor scan signals depending on a fingerprint sensing mode and a touch sensing mode.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: February 23, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Byeong Hee Won, Il Nam Kim, Jae Kyoung Kim, Jong In Baek
  • Publication number: 20210034832
    Abstract: Provided is a display device. The display device includes a display panel which includes a base substrate, a thin-film transistor layer on the base substrate, and a light emitting element layer comprising light emitting elements on the thin-film transistor layer; a cover window on the light emitting element layer of the display panel; and a fingerprint recognition sensor layer under the display panel. The base substrate includes a first base, a second base on the first base, and a light blocking layer between the first base and the second base, and the light blocking layer includes holes through which light reflected by a finger touching the cover window passes.
    Type: Application
    Filed: July 16, 2020
    Publication date: February 4, 2021
    Inventors: Jong Hyun LEE, Ji Hun RYU, Il Nam KIM, Jong In BAEK, Eun Jin SUNG
  • Patent number: 10908744
    Abstract: A touch sensor includes: a substrate that includes active and non-active regions; driving cells disposed on the active region that extend in a first direction; sensing cells disposed on the active region that extend in a second direction that intersects the first direction; a first connection pattern that connects adjacent driving cells; a second connection pattern that connects adjacent sensing cells; and a touch driver disposed on the non-active region that includes thin film transistors that transmit a driving signal to each of the driving cells. The thin film transistor includes: a semiconductor layer; a gate electrode disposed on the semiconductor layer with a first insulating layer interposed therebetween; and source and drain electrodes connected to the semiconductor layer and spaced apart from each other. The first connection pattern is disposed in the same layer as at least one of the source or drain electrodes or the gate electrode.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: February 2, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Il Nam Kim, Byeong Hee Won, Kyung Tea Park, Won Sang Park
  • 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: 20200394381
    Abstract: A display deice is provided including a substrate. The substrate includes a display region that includes a plurality of pixels and a sensing region provided in at least one region of the display region. A circuit element layer is disposed on the substrate, the circuit element layer includes a plurality of conductive layers. A light emitting element layer is provided on the circuit element layer. The light emitting element layer includes a plurality of light emitting elements. A sensor layer is disposed on the substrate. The sensor layer includes a plurality of photo sensor units each including sensor pixels. The photo sensor units are arranged in an irregular pattern in the sensing region.
    Type: Application
    Filed: May 29, 2020
    Publication date: December 17, 2020
    Inventors: JI HUN RYU, Il Nam Kim, Jong Hyun Lee, Jae Kyoung Kim, Eun Jin Sung, Seong Ryong Lee
  • Publication number: 20200380239
    Abstract: According to an aspect of the invention, a fingerprint sensor for a display device includes: a substrate having first and second surfaces; a light transmission layer including a first layer disposed on the first surface of the substrate and having first openings in at least one first conductive layer, and a second layer disposed on the first surface of the substrate and having second openings in at least one second conductive layer; a light emitting element layer disposed on the first layer and the second layer and having at least one light emitting element; and a sensor layer disposed on the second surface of the substrate and having light sensors, where at least a portion of the first openings and at least a portion of the second openings at least partially overlap and have different sizes.
    Type: Application
    Filed: May 27, 2020
    Publication date: December 3, 2020
    Inventors: Jong Hyun LEE, Il Nam KIM, Ji Hun RYU, Eun Jin SUNG, Seong Ryong LEE
  • Publication number: 20200343312
    Abstract: A display device includes a light sensing array layer (LSAL), a substrate, a selective light transmission layer (SLTL), a pixel circuit layer (PCL), a display element layer (DEL), and pixels. The LSAL includes an optical sensor to sense incident light. The substrate is on the LSAL and includes a display area (DA) including pixel areas (PAs), and a non-DA adjacent to the DA. The SLTL is disposed on the substrate and includes through-holes to form a path of light onto the optical sensor, and a light-blocking conductive pattern (LBCP) between the through-holes. The PCL is disposed on the SLTL and includes a conductive layer and an insulation layer. The DEL is disposed on the PCL and emits light. Each pixel includes a pixel circuit disposed on the PCL, and a light emitting element on the DEL in a corresponding pixel area. The LBCP is electrically connected to the conductive layer.
    Type: Application
    Filed: March 4, 2020
    Publication date: October 29, 2020
    Inventors: Ji Hun Ryu, Eun Jin Sung, Yun Ho Kim, Il Nam Kim, Won Sang Park
  • Patent number: 10817696
    Abstract: A display device includes a base, a photosensor disposed on a surface of the base, a light emitting element disposed on the photosensor that includes a bottom electrode, an upper electrode and a light emitting layer interposed between the bottom electrode and the upper electrode, and a light condenser disposed on the light emitting element. The light condenser does not overlap the bottom electrode in a plan view.
    Type: Grant
    Filed: August 28, 2018
    Date of Patent: October 27, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Katsumasa Yoshii, Ji Hun Ryu, Yun Ho Kim, Il Nam Kim, Han Yung Jung
  • 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
  • Publication number: 20200219915
    Abstract: A fingerprint sensor includes: a first layer including a plurality of pixels; a light transmitting hole array layer including a plurality of light transmitting holes providing light transmitting paths of light rays that are incident through the first layer; and a sensor layer including a plurality of photo sensors configured to sense the light rays that pass through the light transmitting holes and are incident on the sensor layer. A resolution at which the photo sensors are disposed in first areas on the sensor layer differs from a resolution at which the photo sensors are disposed in second areas on the sensor layer.
    Type: Application
    Filed: November 22, 2019
    Publication date: July 9, 2020
    Inventors: Il Nam KIM, Won Sang PARK
  • Publication number: 20200219948
    Abstract: The fingerprint sensor may include: a light transmitting hole an-ay layer including a plurality of light blocking patterns having a plurality of light transmitting holes to form light transmitting paths of light rays; a sensor layer including a plurality of photo sensors configured to sense light rays that pass through the light transmitting holes and are incident on the sensor layer; and metal patterns configured to apply electrical signals to pixels or the light blocking patterns. A gap between the light blocking patterns may overlap with at least some of the metal patterns.
    Type: Application
    Filed: November 19, 2019
    Publication date: July 9, 2020
    Inventors: Il Nam Kim, Yun Ho Kim, Ji Hun Ryu, Eun Jin Sung
  • Publication number: 20200219946
    Abstract: A display device including a plurality of pixels arranged in a matrix includes a substrate, a first anode disposed on the substrate, and opaque conductive layers disposed between the substrate and the first anode, in which the plurality of pixels include an opening pixel including a first anode arrangement region, a pinhole region located around the first anode arrangement region and surrounded by the first anode, and a first anode non-arrangement region including an exposed region located outside the first anode, and the opaque conductive layers completely cover the exposed region and at least partially expose the pinhole region.
    Type: Application
    Filed: November 12, 2019
    Publication date: July 9, 2020
    Inventors: Ji Hun RYU, Yun Ho KIM, Il Nam KIM, Eun Jin SUNG
  • 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: 20200065547
    Abstract: An optical unit and a display device including same. The optical unit is for a fingerprint sensor of the display device, and the optical unit includes a first prism to block light rays incident at an angle greater than a detection target incident angle; and a second prism disposed under the first prism to block light rays incident at an angle less than the detection target incident angle.
    Type: Application
    Filed: June 6, 2019
    Publication date: February 27, 2020
    Inventors: Ji Hun RYU, Katsumasa YOSHII, Yun Ho KIM, Il Nam KIM, Eun Jin SUNG
  • 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