Patents by Inventor Jin Hyeong YU

Jin Hyeong YU 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: 20230170451
    Abstract: Disclosed is a display device including: a substrate including a plurality of first pads transmitting a gate signal, a plurality of second pads transmitting a data signal, a plurality of third pads transmitting a first power voltage, and a plurality of fourth pads transmitting a second power voltage different from the first power voltage within a display area; and a plurality of display modules, each of which includes a light emitting diode connected to first to fourth electrodes attached to the first to fourth pads, a first transistor connected to the first electrode and the second electrode, a second transistor connected to the third electrode, and a light emitting diode connected to the second transistor and the fourth electrode.
    Type: Application
    Filed: February 11, 2022
    Publication date: June 1, 2023
    Inventors: Jong Woo Jin, Jin Hyeong Yu
  • Patent number: 11443545
    Abstract: A sensor pixel circuit may include: a photodiode to which a current flows according to incident light; a storage capacitor connected in parallel to the photodiode; a first transistor for connecting a bias voltage and the photodiode by a contact of a recognition object; and a second transistor for transmitting charges stored in the storage capacitor to a data line.
    Type: Grant
    Filed: November 27, 2020
    Date of Patent: September 13, 2022
    Assignee: SILICON DISPLAY TECHNOLOGY
    Inventors: Jong Woo Jin, Jin Hyeong Yu, Youn Duck Nam
  • Patent number: 11227137
    Abstract: A sensor pixel according to a feature of the present invention includes: a detection electrode that forms capacitance with a recognition target; and a sensor pixel circuit that is connected to the detection electrode, generates a detection signal by using the detection electrode, and to which a DC voltage for resetting is supplied, wherein a coupling pulse is periodically applied to the recognition target that forms the capacitance with the detection electrode, and the detection signal may be changed according to the coupling pulse.
    Type: Grant
    Filed: October 28, 2020
    Date of Patent: January 18, 2022
    Assignee: SILICON DISPLAY TECHNOLOGY
    Inventors: Jong Woo Jin, Jin Hyeong Yu, Kwanwon Lim, Youn Duck Nam
  • Publication number: 20210174045
    Abstract: A sensor pixel circuit may include: a photodiode to which a current flows according to incident light; a storage capacitor connected in parallel to the photodiode; a first transistor for connecting a bias voltage and the photodiode by a contact of a recognition object; and a second transistor for transmitting charges stored in the storage capacitor to a data line.
    Type: Application
    Filed: November 27, 2020
    Publication date: June 10, 2021
    Inventors: Jong Woo JIN, Jin Hyeong Yu, Youn Duck Nam
  • Publication number: 20210142025
    Abstract: A sensor pixel according to a feature of the present invention includes: a detection electrode that forms capacitance with a recognition target; and a sensor pixel circuit that is connected to the detection electrode, generates a detection signal by using the detection electrode, and to which a DC voltage for resetting is supplied, wherein a coupling pulse is periodically applied to the recognition target that forms the capacitance with the detection electrode, and the detection signal may be changed according to the coupling pulse.
    Type: Application
    Filed: October 28, 2020
    Publication date: May 13, 2021
    Inventors: Jong Woo JIN, Jin Hyeong YU, Kwanwon LIM, Youn Duck NAM
  • Patent number: 10977475
    Abstract: A fingerprint recognition sensor according to an exemplary embodiment of the present invention includes: a photo sensor for sensing light that is diffuse-reflected from a finger of a user and incident on the photo sensor, or that is transmitted through the finger and incident on the photo sensor; a first matrix positioned on the photo sensor and including a first opening; a second matrix positioned on the first matrix and including a second opening; and a cover layer including one surface contacting the finger and positioned on the second matrix, wherein, from among light that is diffuse-reflected from the finger and incident on the cover layer or that is transmitted through the finger and incident on the cover layer, light having an angle, formed by a normal line on the one surface of the cover layer and a path of the light incident on the cover layer, that is greater than a critical angle, sequentially passes through the second opening and the first opening and is incident on the photo sensor.
    Type: Grant
    Filed: July 5, 2019
    Date of Patent: April 13, 2021
    Assignee: SILICON DISPLAY TECHNOLOGY
    Inventors: Jong Woo Jin, Jin Hyeong Yu, Hyunwoo Jin, Jun Woo Chung, Youn Duck Nam
  • Publication number: 20210053334
    Abstract: A lamination jig according to an exemplary embodiment of the present invention includes: a base plate having a predetermined depth, and including at least one substrate mounting unit into which the substrate is inserted and fixed; and at least one discharging hole installed in the base plate and at least part thereof overlapping the substrate mounting unit.
    Type: Application
    Filed: August 4, 2020
    Publication date: February 25, 2021
    Inventors: Daebong SEO, Byungchan SEO, Junseo KIM, Jun HUR, Jimin SO, Yejun HAN, Hoemin JUNG, Jin Hyeong YU, Kwanwon LIM
  • Patent number: 10931906
    Abstract: There is provided a sensor pixel, including: a first transistor controlled depending on a mode selection voltage supplied to one end thereof; a second transistor including a gate connected to the other end of the first transistor; and a photoconductor connected to one end of the second transistor, wherein the sensor pixel operates in an optical mode when the first transistor is turned on, and the sensor pixel operates in a capacitive mode when the first transistor is turned off.
    Type: Grant
    Filed: April 9, 2019
    Date of Patent: February 23, 2021
    Assignee: SILICON DISPLAY TECHNOLOGY
    Inventors: Kijoong Kim, Jin Hyeong Yu, Young Man Park
  • Patent number: 10755070
    Abstract: A fingerprint and image sensor includes a plurality of data lines, a plurality of scan lines, to which a plurality of scan signals is transferred, a plurality of reset scan lines, to which a plurality of reset scan signals is transferred, and a sensor panel, which is reset by a reset voltage, which is synchronized to a corresponding reset scan signal and is transferred, generates a pixel voltage according to light supplied during an exposure period, and includes a plurality of sensor pixels, which is synchronized to a corresponding scan signal and transfers the pixel voltage to a corresponding data line, and the exposure period may be a period from a time point, at which the corresponding reset scan signal is changed to an off-level, to a time point, at which the corresponding scan signal is changed to an on-level.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: August 25, 2020
    Assignee: SILICON DISPLAY TECHNOLOGY
    Inventors: Kijoong Kim, Taehan Go, Jin Hyeong Yu, Ji Ho Hur, Jong Woo Jin, Young Man Park, Youn Duck Nam
  • Publication number: 20200012833
    Abstract: A fingerprint recognition sensor according to an exemplary embodiment of the present invention includes: a photo sensor for sensing light that is diffuse-reflected from a finger of a user and incident on the photo sensor, or that is transmitted through the finger and incident on the photo sensor; a first matrix positioned on the photo sensor and including a first opening; a second matrix positioned on the first matrix and including a second opening; and a cover layer including one surface contacting the finger and positioned on the second matrix, wherein, from among light that is diffuse-reflected from the finger and incident on the cover layer or that is transmitted through the finger and incident on the cover layer, light having an angle, formed by a normal line on the one surface of the cover layer and a path of the light incident on the cover layer, that is greater than a critical angle, sequentially passes through the second opening and the first opening and is incident on the photo sensor.
    Type: Application
    Filed: July 5, 2019
    Publication date: January 9, 2020
    Inventors: Jong Woo JIN, Jin Hyeong YU, Hyunwoo JIN, Jun Woo CHUNG, Youn Duck NAM
  • Publication number: 20190327435
    Abstract: There is provided a sensor pixel, including: a first transistor controlled depending on a mode selection voltage supplied to one end thereof; a second transistor including a gate connected to the other end of the first transistor; and a photoconductor connected to one end of the second transistor, wherein the sensor pixel operates in an optical mode when the first transistor is turned on, and the sensor pixel operates in a capacitive mode when the first transistor is turned off.
    Type: Application
    Filed: April 9, 2019
    Publication date: October 24, 2019
    Inventors: Kijoong Kim, Jin Hyeong Yu, Young Man Park
  • Patent number: 10410734
    Abstract: The present invention relates to a shift register configured of a plurality of stages applying two clock signals among four clock signals that are sequentially generated as an input and applying a start signal as the input, wherein a first stage charges the start signal to a P-node and outputs a first output signal and a first carry signal by using the voltage of the P-node as a driving voltage when a first clock signal is applied, and resets the P-node when a second clock signal is applied, a second stage pre-charges a start signal input to the first stage to the P-node, charges the first carry signal to the P-node, outputs a second output signal and a second carry signal by using the voltage of the P-node as the driving voltage when the second clock signal is applied, and resets the P-node when a third clock signal is applied, and a third stage and following stages pre-charge a carry signal of the second previous stage to the P-node, charge the carry signal of the previous stage to the P-node, output the ou
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: September 10, 2019
    Assignee: SILICON DISPLAY TECHNOLOGY
    Inventors: Kijoong Kim Kim, Jin Hyeong Yu, Ji Ho Hur
  • Publication number: 20190180075
    Abstract: A fingerprint and image sensor includes a plurality of data lines, a plurality of scan lines, to which a plurality of scan signals is transferred, a plurality of reset scan lines, to which a plurality of reset scan signals is transferred, and a sensor panel, which is reset by a reset voltage, which is synchronized to a corresponding reset scan signal and is transferred, generates a pixel voltage according to light supplied during an exposure period, and includes a plurality of sensor pixels, which is synchronized to a corresponding scan signal and transfers the pixel voltage to a corresponding data line, and the exposure period may be a period from a time point, at which the corresponding reset scan signal is changed to an off-level, to a time point, at which the corresponding scan signal is changed to an on-level.
    Type: Application
    Filed: December 10, 2018
    Publication date: June 13, 2019
    Inventors: Kijoong Kim, Taehan Go, Jin Hyeong Yu, Ji Ho Hur, Jong Woo Jin, Young Man Park, Youn Duck Nam
  • Patent number: 10127430
    Abstract: Disclosed is a fingerprint recognition sensor including: a backlight unit including a base layer positioned on one surface of a substrate and including a transparent material and a light source irradiating light to the inside of the base layer on one side of the base layer, in which light in which an incident angle on a surface facing the substrate is larger than a critical angle is transmitted toward the substrate; a cover layer spaced apart from the substrate and facing the other surface of the substrate; multiple sensor pixels defined by multiple scan lines and multiple data readout lines on the other surface of the substrate and positioned between the substrate and the cover layer; and multiple photo sensors positioned in the respective sensor pixels and sensing light transmitted on the base layer toward the substrate and total-reflected on a surface contacting a fingerprint of a user on the cover layer.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: November 13, 2018
    Assignee: SILICON DISPLAY TECHNOLOGY
    Inventors: Jaemin Kim, Kijoong Kim, Jin Hyeong Yu, Young Man Park, Yeon Hwa Kim, Ji Ho Hur
  • Publication number: 20180096733
    Abstract: The present invention relates to a shift register configured of a plurality of stages applying two clock signals among four clock signals that are sequentially generated as an input and applying a start signal as the input, wherein a first stage charges the start signal to a P-node and outputs a first output signal and a first carry signal by using the voltage of the P-node as a driving voltage when a first clock signal is applied, and resets the P-node when a second clock signal is applied, a second stage pre-charges a start signal input to the first stage to the P-node, charges the first carry signal to the P-node, outputs a second output signal and a second carry signal by using the voltage of the P-node as the driving voltage when the second clock signal is applied, and resets the P-node when a third clock signal is applied, and a third stage and following stages pre-charge a carry signal of the second previous stage to the P-node, charge the carry signal of the previous stage to the P-node, output the ou
    Type: Application
    Filed: June 15, 2017
    Publication date: April 5, 2018
    Inventors: Kijoong KIM, Jin Hyeong YU, Ji Ho HUR
  • Patent number: 9847366
    Abstract: An exemplary embodiment of the present invention provides an infrared image sensor including: a sensor pixel connected with a data lead-out line and a scan line disposed on a surface of a substrate; a wavelength converter positioned in the sensor pixel and disposed in an internal movement path of infrared rays, including an anti-Stokes material that absorbs infrared rays and converts them into visible rays to emit them; and a photosensor part positioned in the sensor pixel to sense the visible rays converted by the wavelength converter.
    Type: Grant
    Filed: June 1, 2017
    Date of Patent: December 19, 2017
    Assignee: SILICON DISPLAY TECHNOLOGY
    Inventors: Jaemin Kim, Kijoong Kim, Jin Hyeong Yu, Ji Ho Hur
  • Publication number: 20170351901
    Abstract: Disclosed is a fingerprint recognition sensor including: a backlight unit including a base layer positioned on one surface of a substrate and including a transparent material and a light source irradiating light to the inside of the base layer on one side of the base layer, in which light in which an incident angle on a surface facing the substrate is larger than a critical angle is transmitted toward the substrate; a cover layer spaced apart from the substrate and facing the other surface of the substrate; multiple sensor pixels defined by multiple scan lines and multiple data readout lines on the other surface of the substrate and positioned between the substrate and the cover layer; and multiple photo sensors positioned in the respective sensor pixels and sensing light transmitted on the base layer toward the substrate and total-reflected on a surface contacting a fingerprint of a user on the cover layer.
    Type: Application
    Filed: December 28, 2016
    Publication date: December 7, 2017
    Inventors: Jaemin KIM, Kijoong Kim, Jin Hyeong YU, Young Man PARK, Yeon Hwa Kim, Ji Ho HUR
  • Publication number: 20160232397
    Abstract: The present invention relates to an optical thin film transistor-type fingerprint sensor, which comprises a backlight unit for irradiating light, including at least one of a red light source, the green light source and the infrared light source; and a photo sensor unit for sensing light irradiated from the backlight unit and reflected by a fingerprint of a user.
    Type: Application
    Filed: September 17, 2014
    Publication date: August 11, 2016
    Applicant: SILICON DISPLAY TECHNOLOGY
    Inventors: Jin Hyeong YU, Ji Ho HUR, Tae Han GO