Patents by Inventor Byung-Seok Choi

Byung-Seok Choi 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: 11216131
    Abstract: The present invention relates to a film touch sensor in which a separation layer is formed on a carrier substrate prior to the formation procedures of the touch sensor and an insulation layer is formed to be used as a planarization layer, an adhesive layer or a base layer, and a method of preparing the film touch sensor.
    Type: Grant
    Filed: November 17, 2015
    Date of Patent: January 4, 2022
    Assignee: DONGWOO FINE-CHEM CO., LTD.
    Inventors: Yong Seok Choi, Byung Muk Yu, Ju In Yoon, Seungjune Park, Min Hyuk Park, Seonghwan Park, Euk Kun Yoon
  • Patent number: 11205811
    Abstract: A cooling structure for a battery is provided. The cooling structure includes a plurality of stacked battery cells and tabs are formed on one side or both sides of electrode of each of the battery cells. Additionally, a cooling passage is configured to accommodate the tabs in an inner space thereof and the tabs operate as cooling fins in the cooling passage.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: December 21, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Jun-Seok Choi, Byung-Su Kim
  • Publication number: 20210306077
    Abstract: Disclosed are a quantum information transmitter, a quantum communication system including the same, and an operating method of the quantum information transmitter. The quantum information transmitter includes a light source driver, a light source, and a light modulator. The light source driver generates a first light source driving signal having a first level and a second light source driving signal having a second level. The light source generates a first light signal having a first average number of photons in response to the first light source driving signal, and generates a second light signal having a second average number of photons in response to the second light source driving signal. The optical modulator modulates the first light signal to generate a target signal, and modulates the second light signal to generate a decoy signal.
    Type: Application
    Filed: March 16, 2021
    Publication date: September 30, 2021
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Kyongchun LIM, Chun Ju YOUN, Young-Ho KO, Kap Joong KIM, Minchul KIM, Byung-seok CHOI, Joong-Seon CHOE
  • Publication number: 20210233937
    Abstract: A transistor structure may include a first electrode, a second electrode, a third electrode, a substrate, and a semiconductor member. The semiconductor member overlaps the third electrode and includes a first semiconductor portion, a second semiconductor portion, and a third semiconductor portion. The first semiconductor portion directly contacts the first electrode, is directly connected to the third semiconductor portion, and is connected through the third semiconductor portion to the second semiconductor portion. The second semiconductor portion directly contacts the second electrode and is directly connected to the third semiconductor portion. A minimum distance between the first semiconductor portion and the substrate is unequal to a minimum distance between the second semiconductor portion and the substrate.
    Type: Application
    Filed: April 14, 2021
    Publication date: July 29, 2021
    Inventors: Hyun Sup LEE, Jung Hun NOH, Keun Kyu SONG, Sang Hee JANG, Byung Seok CHOI
  • Patent number: 11009755
    Abstract: A display device includes: a semiconductor layer including source (SR), drain (DR), and channel (CR) regions; a first insulating layer (FIL) on the semiconductor layer; a gate line on the FIL and overlapping the CR; a second insulating layer (SIL) on the gate line; a first contact hole (FCH) in the FIL and the SIL, and exposing the SR; a data line on the SIL and contacting the SR; a third insulating layer (TIL) on the data line; a second contact hole (SCH) in the first to third insulating layers and exposing the DR; a drain electrode on the TIL and contacting the DR; a color filter on the TIL and not overlapping the SCH; a pixel electrode (PE) on the color filter and contacting the drain electrode; and an organic layer on the TIL and the PE. Upper surfaces of the organic layer and the PE are substantially coplanar.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: May 18, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyung Il Jeon, Sang Hee Jang, Byung Seok Choi
  • Patent number: 11004870
    Abstract: A transistor structure may include a first electrode, a second electrode, a third electrode, a substrate, and a semiconductor member. The semiconductor member overlaps the third electrode and includes a first semiconductor portion, a second semiconductor portion, and a third semiconductor portion. The first semiconductor portion directly contacts the first electrode, is directly connected to the third semiconductor portion, and is connected through the third semiconductor portion to the second semiconductor portion. The second semiconductor portion directly contacts the second electrode and is directly connected to the third semiconductor portion. A minimum distance between the first semiconductor portion and the substrate is unequal to a minimum distance between the second semiconductor portion and the substrate.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: May 11, 2021
    Inventors: Hyun Sup Lee, Jung Hun Noh, Keun Kyu Song, Sang Hee Jang, Byung Seok Choi
  • Publication number: 20210119076
    Abstract: Disclosed are a quantum light source and an optical communication apparatus including the same. The quantum light source device includes a vertical reflection layer disposed on a substrate, a lower electrode layer disposed on the vertical reflection layer, a horizontal reflection layer disposed on the lower electrode layer, a quantum light source disposed in the horizontal reflection layer, and an upper electrode layer disposed on the horizontal reflection layer.
    Type: Application
    Filed: October 21, 2020
    Publication date: April 22, 2021
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Young-Ho KO, Kap-Joong KIM, Byung-seok CHOI, Won Seok HAN
  • Patent number: 10788721
    Abstract: A liquid crystal display is provided. A liquid crystal display comprising: an insulating substrate, a plurality of pixels disposed on the insulating substrate, and a display area in which the pixels are arranged in rows and columns, wherein four pixels arranged successively in a row direction form a domain pattern, and the domain pattern is repeated in the row direction and a column direction in the display area, wherein each pixel in first and second rows of the domain pattern has a first domain orientation, and each pixel in third and fourth rows of the domain pattern has a second domain orientation that is different from the first domain orientation.
    Type: Grant
    Filed: July 1, 2019
    Date of Patent: September 29, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sang Hee Jang, Hyun Sup Lee, Jung Hun Noh, Keun Kyu Song, Byung Seok Choi
  • Patent number: 10649139
    Abstract: An optical waveguide structure includes a substrate and a core structure disposed on the substrate. The substrate includes a first waveguide region, a second waveguide region, and a transition region between the first waveguide region and the second waveguide region. The core structure includes first core segments arranged in a first direction and a second direction crossing the first direction on the transition region. The core structure includes second core segments arranged in the first direction and the second direction on the second waveguide region. The first direction and the second direction are parallel to a top surface of the substrate.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: May 12, 2020
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Duk Jun Kim, Young-Ho Ko, Dong-Young Kim, Jong-Hoi Kim, Yongsoon Baek, Jung-Ho Song, Dong Hyo Lee, Byung-Seok Choi, Won Seok Han
  • Patent number: 10497744
    Abstract: A light emitting device includes a first electrode, an insulating layer, a second electrode, and a bar-type light emitting diode (LED). The insulating layer includes a plurality of protruding parts protruding from the first electrode and at least one hole between the protruding parts. The second electrode on the insulating layer. The bar-type LED is in the at least one hole. The bar-type LED has a first end and a second end in the length direction. One of the first or second ends is connected to the first electrode and the other of the first or second ends is connected to the second electrode.
    Type: Grant
    Filed: April 3, 2019
    Date of Patent: December 3, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyun Sup Lee, Jung Hun Noh, Sang Hee Jang, Hyung Il Jeon, Byung Seok Choi
  • Publication number: 20190353918
    Abstract: Provided is a polarization decomposition device. The polarization decomposition device includes a polarization beam splitter configured to split an optical signal into a first polarized light having a first polarization direction and a second polarized light having a second polarization direction different from the first polarized light, a phase shifter configured to delay a phase of the first polarized light, a polarization rotator configured to rotate the second polarized light so that the polarization direction of the second polarized light is changed, and an interference beam splitter configured to allow the first polarized light in which the phase is delayed and the second polarized light in which the polarization direction is rotated to interfere with each other and split them into a third polarized light and a fourth polarized light.
    Type: Application
    Filed: May 17, 2019
    Publication date: November 21, 2019
    Inventors: Kap-Joong KIM, Chun Ju YOUN, Heasin KO, Byung-Seok CHOI, Joong-Seon CHOE
  • Publication number: 20190339553
    Abstract: A display device includes: a semiconductor layer including source (SR), drain (DR), and channel (CR) regions; a first insulating layer (FIL) on the semiconductor layer; a gate line on the FIL and overlapping the CR; a second insulating layer (SIL) on the gate line; a first contact hole (FCH) in the FIL and the SIL, and exposing the SR; a data line on the SIL and contacting the SR; a third insulating layer (TIL) on the data line; a second contact hole (SCH) in the first to third insulating layers and exposing the DR; a drain electrode on the TIL and contacting the DR; a color filter on the TIL and not overlapping the SCH; a pixel electrode (PE) on the color filter and contacting the drain electrode; and an organic layer on the TIL and the PE. Upper surfaces of the organic layer and the PE are substantially coplanar.
    Type: Application
    Filed: March 25, 2019
    Publication date: November 7, 2019
    Inventors: Hyung Il JEON, Sang Hee Jang, Byung Seok Choi
  • Publication number: 20190324330
    Abstract: A liquid crystal display is provided. A liquid crystal display comprising: an insulating substrate, a plurality of pixels disposed on the insulating substrate, and a display area in which the pixels are arranged in rows and columns, wherein four pixels arranged successively in a row direction form a domain pattern, and the domain pattern is repeated in the row direction and a column direction in the display area, wherein each pixel in first and second rows of the domain pattern has a first domain orientation, and each pixel in third and fourth rows of the domain pattern has a second domain orientation that is different from the first domain orientation.
    Type: Application
    Filed: July 1, 2019
    Publication date: October 24, 2019
    Inventors: Sang Hee Jang, Hyun Sup Lee, Jung Hun Noh, Keun Kyu Song, Byung Seok Choi
  • Patent number: 10447010
    Abstract: Provided herein are a method and apparatus for controlling the wavelength of an external-cavity wavelength-tunable laser. The reflectivity or transmittance characteristics of a wavelength depend on the phase difference between light reflected by a wavelength-tunable filter and parasitic reflective light. Thus, when the temperature of a module and current applied to a phase control electrode and an external reflector are changed, the characteristics are changed in a periodic manner. The present disclosure relates to a wavelength control algorithm of determining combinations of these parameters to set conditions having optimum chirping characteristics at a desired wavelength.
    Type: Grant
    Filed: August 5, 2016
    Date of Patent: October 15, 2019
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventor: Byung-Seok Choi
  • Patent number: 10379407
    Abstract: A liquid crystal display is provided. A liquid crystal display comprising: an insulating substrate, a plurality of pixels disposed on the insulating substrate, and a display area in which the pixels are arranged in rows and columns, wherein four pixels arranged successively in a row direction form a domain pattern, and the domain pattern is repeated in the row direction and a column direction in the display area, wherein each pixel in first and second rows of the domain pattern has a first domain orientation, and each pixel in third and fourth rows of the domain pattern has a second domain orientation that is different from the first domain orientation.
    Type: Grant
    Filed: September 21, 2016
    Date of Patent: August 13, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sang Hee Jang, Hyun Sup Lee, Jung Hun Noh, Keun Kyu Song, Byung Seok Choi
  • Publication number: 20190229148
    Abstract: A light emitting device includes a first electrode, an insulating layer, a second electrode, and a bar-type light emitting diode (LED). The insulating layer includes a plurality of protruding parts protruding from the first electrode and at least one hole between the protruding parts. The second electrode on the insulating layer. The bar-type LED is in the at least one hole. The bar-type LED has a first end and a second end in the length direction. One of the first or second ends is connected to the first electrode and the other of the first or second ends is connected to the second electrode.
    Type: Application
    Filed: April 3, 2019
    Publication date: July 25, 2019
    Inventors: Hyun Sup Lee, Jung Hun Noh, Sang Hee Jang, Hyung Il Jeon, Byung Seok Choi
  • Publication number: 20190219760
    Abstract: An optical waveguide structure includes a substrate and a core structure disposed on the substrate. The substrate includes a first waveguide region, a second waveguide region, and a transition region between the first waveguide region and the second waveguide region. The core structure includes first core segments arranged in a first direction and a second direction crossing the first direction on the transition region. The core structure includes second core segments arranged in the first direction and the second direction on the second waveguide region. The first direction and the second direction are parallel to a top surface of the substrate.
    Type: Application
    Filed: December 10, 2018
    Publication date: July 18, 2019
    Inventors: Duk Jun KIM, Young-Ho KO, Dong-Young KIM, Jong-Hoi KIM, Yongsoon BAEK, Jung-Ho SONG, Dong Hyo LEE, Byung-Seok CHOI, Won Seok HAN
  • Patent number: 10340293
    Abstract: A transistor display panel includes a substrate, a gate line disposed on the substrate, a data line disposed on the substrate, and a transistor disposed on the substrate. The transistor includes a first electrode, a second electrode overlapping the first electrode, a semiconductor layer disposed between the first electrode and the second electrode, and a gate electrode. The semiconductor layer is disposed in an overlapping region where the gate line and the data line overlap each other.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: July 2, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jung-Hun Noh, Hyun Sup Lee, Sang-Hee Jang, Hyung-Il Jeon, Byung Seok Choi
  • Publication number: 20190162986
    Abstract: Provided is an apparatus configured to split light into a plurality of polarizations, the apparatus including an input waveguide configured to receive the light, a first interferometer configured to split the light into a first polarization and a second polarization, and a second interferometer configured to split the light into a third polarization and a fourth polarization, wherein the first interferometer and the second interferometer are connected in parallel, the first interferometer comprises a first output waveguide configured to output the first polarization, and a second output waveguide configured to output the second polarization, and the second interferometer comprises a third output waveguide configured to output the third polarization, and a fourth output waveguide configured to output the fourth polarization.
    Type: Application
    Filed: November 8, 2018
    Publication date: May 30, 2019
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Joong-Seon Choe, Chun Ju Youn, Heasin Ko, Kap-Joong Kim, Byung-seok Choi
  • Patent number: 10276630
    Abstract: A light emitting device includes a first electrode, an insulating layer, a second electrode, and a bar-type light emitting diode (LED). The insulating layer includes a plurality of protruding parts protruding from the first electrode and at least one hole between the protruding parts. The second electrode on the insulating layer. The bar-type LED is in the at least one hole. The bar-type LED has a first end and a second end in the length direction. One of the first or second ends is connected to the first electrode and the other of the first or second ends is connected to the second electrode.
    Type: Grant
    Filed: May 3, 2017
    Date of Patent: April 30, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyun Sup Lee, Jung Hun Noh, Sang Hee Jang, Hyung Il Jeon, Byung Seok Choi