Patents by Inventor Jang-Kun Song

Jang-Kun Song 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: 20220113570
    Abstract: A wavelength-tunable etalon includes a pair of substrates, each comprising a reflection layer, an electrode, and an alignment layer on opposing surfaces of the pair of substrates; a first seal line configured to seal liquid crystal between the pair of substrates; and a second seal line configured to divide a space in which the liquid crystal is sealed into a main liquid crystal accommodating space configured to pass laser and a sub-liquid crystal accommodating space provided external of the main liquid crystal accommodating space. The first seal line comprises a sub inlet configured to fluidly communicate the main liquid crystal accommodating space with the sub-liquid crystal accommodating space.
    Type: Application
    Filed: October 12, 2021
    Publication date: April 14, 2022
    Applicant: RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventor: Jang Kun SONG
  • Publication number: 20220035213
    Abstract: A liquid crystal display device includes a first substrate, a second substrate facing the first substrate, a dual passivation layer disposed between the first substrate and the second substrate. The dual passivation layer includes a first passivation layer and a second passivation layer. A refractive index of the first passivation layer is different from a refractive index of the second passivation layer.
    Type: Application
    Filed: October 18, 2021
    Publication date: February 3, 2022
    Inventors: Jang-Kun SONG, Yeon-Sik HAM, Kang-Woo KIM, Yeon-Mun JEON, Jeong Hyun LEE
  • Patent number: 11150529
    Abstract: A liquid crystal display device includes a first substrate, a second substrate facing the first substrate, a dual passivation layer disposed between the first substrate and the second substrate. The dual passivation layer includes a first passivation layer and a second passivation layer. A refractive index of the first passivation layer is different from a refractive index of the second passivation layer.
    Type: Grant
    Filed: June 7, 2019
    Date of Patent: October 19, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jang-Kun Song, Yeon-Sik Ham, Kang-Woo Kim, Yeon-Mun Jeon, Jeong Hyun Lee
  • Publication number: 20210302792
    Abstract: A flat panel display having an improved picture quality is disclosed. In one embodiment, a first pixel electrode and a second pixel electrode are formed in each subpixel area. The electrodes enclose an open space (gap) such that their outer boundary has a substantially rectangular shape. The flat panel display may also include a capacitance electrode coupled to the second pixel electrode to form a coupling capacitor. In use, the coupling capacitor operates such that a magnitude of a voltage applied to the first pixel electrode is lower than an applied data voltage, and a magnitude of a voltage applied to the second pixel electrode is higher than an applied voltage. The different voltages operate such that a tilt direction of LC molecules disposed above the first pixel electrode differs from a tilt direction of LC molecules disposed above the second pixel electrode.
    Type: Application
    Filed: June 9, 2021
    Publication date: September 30, 2021
    Inventor: JANG-KUN SONG
  • Patent number: 11048127
    Abstract: A flat panel display having an improved picture quality is disclosed. In one embodiment, a first pixel electrode and a second pixel electrode are formed in each subpixel area. The electrodes enclose an open space (gap) such that their outer boundary has a substantially rectangular shape. The flat panel display may also include a capacitance electrode coupled to the second pixel electrode to form a coupling capacitor. In use, the coupling capacitor operates such that a magnitude of a voltage applied to the first pixel electrode is lower than an applied data voltage, and a magnitude of a voltage applied to the second pixel electrode is higher than an applied voltage. The different voltages operate such that a tilt direction of LC molecules disposed above the first pixel electrode differs from a tilt direction of LC molecules disposed above the second pixel electrode.
    Type: Grant
    Filed: March 14, 2019
    Date of Patent: June 29, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Jang-Kun Song
  • Patent number: 10969635
    Abstract: A liquid crystal display (LCD) is provided, which includes: first and second gate lines, a data line intersecting the gate lines, first to fourth drain electrodes located near the intersections between the first and second gate lines and the data line, and a coupling electrode. First to fourth pixel electrodes respectively connected to the first to fourth drain electrodes are also provided, and the first pixel electrode is connected to the coupling electrode while the fourth pixel electrode overlaps the coupling electrode. The LCD further includes a common electrode opposite the pixel electrodes, a liquid crystal layer interposed between the pixel electrodes and the common electrode, and a domain partitioning member formed on at least one of the pixel electrode and the common electrode. Two long edges of the domains are angled with respect to the first and the second gate lines or the data line substantially by about 45°.
    Type: Grant
    Filed: April 13, 2020
    Date of Patent: April 6, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Jang-Kun Song
  • Patent number: 10830934
    Abstract: An exemplary embodiment of the present invention provides an optical element including a first polarizer and a second polarizer disposed to be perpendicular to each other, and a cell disposed between the first polarizer and the second polarizer. The cell includes a first substrate and a second substrate facing each other, an electrode positioned between the first substrate and the second substrate, and a dispersion disposed between the first substrate and the second substrate and including at least one of peeled ?-ZrP particles and peeled ?-TiP particles. The peeled ?-ZrP particles and the peeled ?-TiP particles are in a nematic state. The orientation of at least one of the ?-ZrP particles or the ?-TiP particles is changed by an electric field applied to the electrode.
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: November 10, 2020
    Assignee: RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventors: Jang Kun Song, Tianzi Shen
  • Publication number: 20200241367
    Abstract: A liquid crystal display (LCD) is provided, which includes: first and second gate lines, a data line intersecting the gate lines, first to fourth drain electrodes located near the intersections between the first and second gate lines and the data line, and a coupling electrode. First to fourth pixel electrodes respectively connected to the first to fourth drain electrodes are also provided, and the first pixel electrode is connected to the coupling electrode while the fourth pixel electrode overlaps the coupling electrode. The LCD further includes a common electrode opposite the pixel electrodes, a liquid crystal layer interposed between the pixel electrodes and the common electrode, and a domain partitioning member formed on at least one of the pixel electrode and the common electrode. Two long edges of the domains are angled with respect to the first and the second gate lines or the data line substantially by about 45°.
    Type: Application
    Filed: April 13, 2020
    Publication date: July 30, 2020
    Inventor: JANG-KUN SONG
  • Patent number: 10620488
    Abstract: A liquid crystal display (LCD) is provided, which includes: first and second gate lines, a data line intersecting the gate lines, first to fourth drain electrodes located near the intersections between the first and second gate lines and the data line, and a coupling electrode. First to fourth pixel electrodes respectively connected to the first to fourth drain electrodes are also provided, and the first pixel electrode is connected to the coupling electrode while the fourth pixel electrode overlaps the coupling electrode. The LCD further includes a common electrode opposite the pixel electrodes, a liquid crystal layer interposed between the pixel electrodes and the common electrode, and a domain partitioning member formed on at least one of the pixel electrode and the common electrode. Two long edges of the domains are angled with respect to the first and the second gate lines or the data line substantially by about 45°.
    Type: Grant
    Filed: July 2, 2018
    Date of Patent: April 14, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Jang-Kun Song
  • Patent number: 10488726
    Abstract: A liquid crystal display device includes a first substrate, a second substrate facing the first substrate, a dual passivation layer disposed between the first substrate and the second substrate. The dual passivation layer includes a first passivation layer and a second passivation layer. A refractive index of the first passivation layer is different from a refractive index of the second passivation layer.
    Type: Grant
    Filed: May 25, 2017
    Date of Patent: November 26, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jang-Kun Song, Yeon-Sik Ham, Kang-Woo Kim, Yeon-Mun Jeon, Jeong Hyun Lee
  • Patent number: 10466551
    Abstract: The present invention relates to a wavelength-tunable type etalon comprising a liquid crystal layer, which comprises: a first substrate; a second substrate; a reflective coating film; a transparent electrode; an alignment layer, which is independently formed while covering the opposing surface of the transparent electrode; a liquid crystal layer, which is disposed in a space between each of the alignment layer s; and a sealing member, which is provided for sealing of the liquid crystal layer; and a method for manufacturing the same.
    Type: Grant
    Filed: July 12, 2017
    Date of Patent: November 5, 2019
    Assignee: Research & Business Foundation Sungkyunkwan University
    Inventor: Jang Kun Song
  • Publication number: 20190285956
    Abstract: A liquid crystal display device includes a first substrate, a second substrate facing the first substrate, a dual passivation layer disposed between the first substrate and the second substrate. The dual passivation layer includes a first passivation layer and a second passivation layer. A refractive index of the first passivation layer is different from a refractive index of the second passivation layer.
    Type: Application
    Filed: June 7, 2019
    Publication date: September 19, 2019
    Inventors: Jang-Kun SONG, Yeon-Sik HAM, Kang-Woo KIM, Yeon-Mun JEON, Jeong Hyun LEE
  • Patent number: 10367171
    Abstract: The low reflective display device a low reflective unit including a plurality of optical lens structures arranged in a position-corresponding manner to the plurality of sub-pixels thereon respectively; a light-reflective layer covering the side-wall face of each optical lens structure; and a light-absorbing member arranged to fill spaces between neighboring optical lens structures, wherein the bottom face of each of the plurality of optical lens structures completely covers the top face of the corresponding sub-pixel among the plurality of sub-pixels, wherein the bottom face of each of the plurality of optical lens structures receives all of light-beams generated from the corresponding sub-pixel, and wherein the bottom face of each of the plurality of optical lens structures has an area that is greater than or equal to a top face area of the corresponding sub-pixel.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: July 30, 2019
    Assignee: Research & Business Foundation Sungkyunkwan University
    Inventor: Jang Kun Song
  • Publication number: 20190212617
    Abstract: A flat panel display having an improved picture quality is disclosed. In one embodiment, a first pixel electrode and a second pixel electrode are formed in each subpixel area. The electrodes enclose an open space (gap) such that their outer boundary has a substantially rectangular shape. The flat panel display may also include a capacitance electrode coupled to the second pixel electrode to form a coupling capacitor. In use, the coupling capacitor operates such that a magnitude of a voltage applied to the first pixel electrode is lower than an applied data voltage, and a magnitude of a voltage applied to the second pixel electrode is higher than an applied voltage. The different voltages operate such that a tilt direction of LC molecules disposed above the first pixel electrode differs from a tilt direction of LC molecules disposed above the second pixel electrode.
    Type: Application
    Filed: March 14, 2019
    Publication date: July 11, 2019
    Inventor: Jang-Kun Song
  • Patent number: 10254595
    Abstract: A flat panel display having an improved picture quality is disclosed. In one embodiment, a first pixel electrode and a second pixel electrode are formed in each subpixel area. The electrodes enclose an open space (gap) such that their outer boundary has a substantially rectangular shape. The flat panel display may also include a capacitance electrode coupled to the second pixel electrode to form a coupling capacitor. In use, the coupling capacitor operates such that a magnitude of a voltage applied to the first pixel electrode is lower than an applied data voltage, and a magnitude of a voltage applied to the second pixel electrode is higher than an applied voltage. The different voltages operate such that a tilt direction of LC molecules disposed above the first pixel electrode differs from a tilt direction of LC molecules disposed above the second pixel electrode.
    Type: Grant
    Filed: February 13, 2017
    Date of Patent: April 9, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Jang-Kun Song
  • Publication number: 20190004226
    Abstract: An exemplary embodiment of the present invention provides an optical element including a first polarizer and a second polarizer disposed to be perpendicular to each other, and a cell disposed between the first polarizer and the second polarizer. The cell includes a first substrate and a second substrate facing each other, an electrode positioned between the first substrate and the second substrate, and a dispersion disposed between the first substrate and the second substrate and including at least one of peeled ?-ZrP particles and peeled ?-TiP particles. The peeled ?-ZrP particles and the peeled ?-TiP particles are in a nematic state. The orientation of at least one of the ?-ZrP particles or the ?-TiP particles is changed by an electric field applied to the electrode.
    Type: Application
    Filed: June 26, 2018
    Publication date: January 3, 2019
    Inventors: Jang Kun SONG, Tianzi SHEN
  • Publication number: 20180307106
    Abstract: A liquid crystal display (LCD) is provided, which includes: first and second gate lines, a data line intersecting the gate lines, first to fourth drain electrodes located near the intersections between the first and second gate lines and the data line, and a coupling electrode. First to fourth pixel electrodes respectively connected to the first to fourth drain electrodes are also provided, and the first pixel electrode is connected to the coupling electrode while the fourth pixel electrode overlaps the coupling electrode. The LCD further includes a common electrode opposite the pixel electrodes, a liquid crystal layer interposed between the pixel electrodes and the common electrode, and a domain partitioning member formed on at least one of the pixel electrode and the common electrode. Two long edges of the domains are angled with respect to the first and the second gate lines or the data line substantially by about 45°.
    Type: Application
    Filed: July 2, 2018
    Publication date: October 25, 2018
    Inventor: JANG-KUN SONG
  • Publication number: 20180190942
    Abstract: The low reflective display device a low reflective unit including a plurality of optical lens structures arranged in a position-corresponding manner to the plurality of sub-pixels thereon respectively; a light-reflective layer covering the side-wall face of each optical lens structure; and a light-absorbing member arranged to fill spaces between neighboring optical lens structures, wherein the bottom face of each of the plurality of optical lens structures completely covers the top face of the corresponding sub-pixel among the plurality of sub-pixels, wherein the bottom face of each of the plurality of optical lens structures receives all of light-beams generated from the corresponding sub-pixel, and wherein the bottom face of each of the plurality of optical lens structures has an area that is greater than or equal to a top face area of the corresponding sub-pixel.
    Type: Application
    Filed: December 27, 2017
    Publication date: July 5, 2018
    Applicant: RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventor: Jang Kun SONG
  • Patent number: 10012875
    Abstract: A liquid crystal display (LCD) is provided, which includes: first and second gate lines, a data line intersecting the gate lines, first to fourth drain electrodes located near the intersections between the first and second gate lines and the data line, and a coupling electrode. First to fourth pixel electrodes respectively connected to the first to fourth drain electrodes are also provided, and the first pixel electrode is connected to the coupling electrode while the fourth pixel electrode overlaps the coupling electrode. The LCD further includes a common electrode opposite the pixel electrodes, a liquid crystal layer interposed between the pixel electrodes and the common electrode, and a domain partitioning member formed on at least one of the pixel electrode and the common electrode. Two long edges of the domains are angled with respect to the first and the second gate lines or the data line substantially by about 45°.
    Type: Grant
    Filed: October 25, 2016
    Date of Patent: July 3, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Jang-Kun Song
  • Patent number: RE47455
    Abstract: A liquid crystal display includes first and second gate lines and first and second data lines, on a first substrate, a first thin film transistor connected to the first gate and data lines and including a first source and drain electrode, a second thin film transistor connected to the second gate and data lines and including a second source and drain electrode, first and second pixel electrodes contacting a portion of the first and second drain electrodes, respectively, a passivation layer on the first and second pixel electrodes and the first and second thin film transistors, and a reference electrode on a passivation layer and overlapping the first pixel electrode and the second pixel electrode. The reference electrode includes a plurality of branch electrodes. The first thin film transistor is right of the first data line and the second thin film transistor is left of the second data line.
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: June 25, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyun-Wuk Kim, Jang-Kun Song, Seon-Ah Cho, Eun-Je Jang, You-Sik Shin