Patents by Inventor Seung-Ryul Choi

Seung-Ryul 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: 11921929
    Abstract: Provided is a stereoscopic surface display device including a stereoscopic display unit having a cell area, wherein the stereoscopic display unit includes a first flexible layer, a first optical waveguide and a first optical output unit in the first flexible layer, wherein the first optical output unit are disposed in the cell area, a first light source disposed on a side of the stereoscopic display unit, wherein the first optical waveguide connects the first light source and the first optical output unit, a first photothermal response layer on the first flexible layer, wherein the first photothermal response layer is configured to receive output light emitted from the first optical output unit and emit thermal energy, and a shape deformation layer on the first photothermal response layer, wherein the shape deformation layer is configured to generate bending deformation by receiving the thermal energy from the first photothermal response layer.
    Type: Grant
    Filed: February 7, 2023
    Date of Patent: March 5, 2024
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sung Ryul Yun, Seung Koo Park, Inwook Hwang, Seongcheol Mun, Mi Jeong Choi
  • Patent number: 11799163
    Abstract: The present invention relates to a battery cell carrying box in which battery cells are housed and which has a flame discharge port to discharge a flame when a certain battery cell housed in the carrying box burns, such that it is possible to prevent the flame from being propagated to adjacent battery cells and prevent the flame from being propagated to adjacent carrying boxes.
    Type: Grant
    Filed: May 5, 2021
    Date of Patent: October 24, 2023
    Assignee: SK ON CO., LTD.
    Inventor: Seung Ryul Choi
  • Publication number: 20230216159
    Abstract: An external short-circuit device is disclosed. The external short-circuit device includes a first extension electrode and a second extension electrode respectively connected to both electrode tabs of a battery cell, a short-circuit unit including a case that accommodates an end portion of the first extension electrode and an end portion of the second extension electrode, and a heating unit coupled to the short-circuit unit. The short-circuit unit further includes a contact module between the first extension electrode and the second extension electrode. When the heating unit provides a heat to at least one of the first extension electrode or the second extension electrode, the contact module melts to bring the first extension electrode into contact with the second extension electrode.
    Type: Application
    Filed: January 3, 2023
    Publication date: July 6, 2023
    Inventor: Seung Ryul CHOI
  • Publication number: 20210351471
    Abstract: The present invention relates to a battery cell carrying box in which battery cells are housed and which has a flame discharge port to discharge a flame when a certain battery cell housed in the carrying box burns, such that it is possible to prevent the flame from being propagated to adjacent battery cells and prevent the flame from being propagated to adjacent carrying boxes.
    Type: Application
    Filed: May 5, 2021
    Publication date: November 11, 2021
    Inventor: Seung Ryul CHOI
  • Patent number: 10847850
    Abstract: The present invention relates to a flat plate type cooling plate for a secondary battery, which includes a plurality of cooling parts spaced apart from each other in a longitudinal direction within the cooling plate and a plurality of reinforcement ribs disposed on inner surfaces of the cooling parts. The cooling plate for the secondary battery according to the present invention may be minimized in deformation due to an external impact and stimulation when the cell module is penetrated and thus reduce an influence on unit cells due to the deformation of the cooling plate to suppress an occurrence of short-circuit in the unit cells of the cell module, thereby improving safety of the battery. Also, heat generated during charging and discharging may be effectively released to prevent the battery from being deteriorated in capacity characteristic and improve lifespan characteristics of the battery and reliability of battery performance.
    Type: Grant
    Filed: November 10, 2015
    Date of Patent: November 24, 2020
    Assignee: LG Chem, Ltd.
    Inventor: Seung Ryul Choi
  • Patent number: 10658440
    Abstract: An organic light emitting diode display device includes a substrate including a display region, wherein a plurality of pixel regions are defined in the display region; a first electrode over the substrate and in each of the plurality of pixel regions; a bank including a lower layer and an upper layer on the first electrode, the lower layer disposed on edges of the first electrode and having a first width and a first thickness, the upper layer disposed on the lower layer and having a second width smaller than the first width; an organic emitting layer on the first electrode and a portion of the lower layer; and a second electrode on the organic emitting layer and covering an entire surface of the display region.
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: May 19, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: Dae-Jung Choi, Jae-Ki Lee, Ki-Soub Yang, Hwang-Un Seo, Hong-Myeong Jeon, Seung-Ryul Choi, A-Ryoung Lee, Han-Hee Kim, Geum-Young Lee, Kang-Hyun Kim
  • Patent number: 10468649
    Abstract: Disclosed is a battery case, which includes a frame unit having an accommodation space formed therein so that a cell assembly including a plurality of stacked battery cells is accommodated therein, the frame unit having at least one open side surface; and a frame cover configured to cover the at least one open side surface and having an extinguishing space in which flame generated at the cell assembly is introduced and extinguished, the frame cover having a discharge unit communicating with an outside of the extinguishing space so that gas generated at the cell assembly and introduced into the extinguishing space is discharged to the outside of the extinguishing space.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: November 5, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Seung-Ryul Choi, Do-Gyun Kim, Ho-Seoung Son
  • Patent number: 10319980
    Abstract: The present invention relates to a battery pack connected to an electronic device. The battery pack comprises: a battery module provided with a plurality of battery cells which are disposed adjacent to each other and connected to each other in series and on which first and second electrode terminals are disposed; a fuse disposed between the first electrode terminal of the uppermost battery cell and the second electrode terminal of the electronic device; and a switching device provided with a first plate disposed on a top surface of the uppermost battery cell and connected to the first electrode terminal of the uppermost battery cell, a second plate disposed above the first plate and connected to the second electrode terminal of the lowermost battery cell, and a support frame disposed between the first plate and the second plate and having fragility.
    Type: Grant
    Filed: July 26, 2016
    Date of Patent: June 11, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Chul Kyu Lee, Seung Ryul Choi, Jun Park, Kyung Hyun Kim
  • Patent number: 10249860
    Abstract: Provided is a cartridge frame which is inserted between a plurality of unit battery cells stacked in the fabrication of a modularized battery and a battery module having the same. The cartridge frame according to one aspect of the present disclosure includes an inter-cell separation plate with a planar shape inserted between adjacent unit battery cells to separate the adjacent unit battery cells, and a sidewall part extending in a direction perpendicular to the planar surface of the inter-cell separation plate at an edge other than an edge of a direction in which an electrode terminal of the battery cell is drawn, among edges of the inter-cell separation plate, wherein for at least a portion of the sidewall part, an inner sidewall coming into contact with a side surface of the unit battery cell is made from metal, and an outer sidewall facing the inner sidewall is made from plastic.
    Type: Grant
    Filed: August 12, 2015
    Date of Patent: April 2, 2019
    Assignee: LG Chem, Ltd.
    Inventor: Seung-Ryul Choi
  • Publication number: 20190088914
    Abstract: Disclosed is a battery case, which includes a frame unit having an accommodation space formed therein so that a cell assembly including a plurality of stacked battery cells is accommodated therein, the frame unit having at least one open side surface; and a frame cover configured to cover the at least one open side surface and having an extinguishing space in which flame generated at the cell assembly is introduced and extinguished, the frame cover having a discharge unit communicating with an outside of the extinguishing space so that gas generated at the cell assembly and introduced into the extinguishing space is discharged to the outside of the extinguishing space.
    Type: Application
    Filed: September 17, 2018
    Publication date: March 21, 2019
    Applicant: LG CHEM, LTD.
    Inventors: Seung-Ryul CHOI, Do-Gyun KIM, Ho-Seoung SON
  • Publication number: 20180308913
    Abstract: An organic light emitting diode display device includes a substrate including a display region, wherein a plurality of pixel regions are defined in the display region; a first electrode over the substrate and in each of the plurality of pixel regions; a bank including a lower layer and an upper layer on the first electrode, the lower layer disposed on edges of the first electrode and having a first width and a first thickness, the upper layer disposed on the lower layer and having a second width smaller than the first width; an organic emitting layer on the first electrode and a portion of the lower layer; and a second electrode on the organic emitting layer and covering an entire surface of the display region.
    Type: Application
    Filed: June 26, 2018
    Publication date: October 25, 2018
    Inventors: Dae-Jung Choi, Jae-Ki Lee, Ki-Soub Yang, Hwang-Un Seo, Hong-Myeong Jeon, Seung-Ryul Choi, A-Ryoung Lee, Han-Hee Kim, Geum-Young Lee, Kang-Hyun Kim
  • Patent number: 10056600
    Abstract: Provided is a battery pack. The battery pack includes a battery module including first and second battery cells that are disposed adjacent to each other, wherein first and second electrode terminals are disposed on each of the first and second electrode terminals, a fuse part including a first fuse connecting the second electrode terminal of the first battery cell to the first electrode terminal of the second battery cell, and a switching device including a first switch disposed outside a top surface of the first battery cell of the battery module and connected to the first fuse and a second switch disposed below the first switch and connected to the second electrode terminal of the second battery cell.
    Type: Grant
    Filed: January 5, 2016
    Date of Patent: August 21, 2018
    Assignee: LG Chem, Ltd.
    Inventors: Chul Kyu Lee, Hyung Ku Yun, Bum Young Jung, Seung Ryul Choi, Sun Mo An
  • Patent number: 10044029
    Abstract: Disclosed herein is a lithium secondary battery including a positive electrode including lithium iron phosphate and layered lithium nickel manganese cobalt oxide as a positive electrode active material and a negative electrode including a negative electrode active material having a potential difference of 3.10 V or higher from the lithium iron phosphate at a point of 50% state of charge (SOC) afforded by the entirety of the lithium iron phosphate.
    Type: Grant
    Filed: June 5, 2014
    Date of Patent: August 7, 2018
    Assignee: LG Chem, Ltd.
    Inventors: Won Hee Jeong, Min Sun Cho, Sin Kyu Kim, Min Hee Lee, Seung Ryul Choi, Jae Hyun Lee, Geun Chang Chung
  • Patent number: 10038039
    Abstract: An organic light emitting diode display device includes a substrate including a display region, wherein a plurality of pixel regions are defined in the display region; a first electrode over the substrate and in each of the plurality of pixel regions; a bank including a lower layer and an upper layer on the first electrode, the lower layer disposed on edges of the first electrode and having a first width and a first thickness, the upper layer disposed on the lower layer and having a second width smaller than the first width; an organic emitting layer on the first electrode and a portion of the lower layer; and a second electrode on the organic emitting layer and covering an entire surface of the display region.
    Type: Grant
    Filed: July 10, 2017
    Date of Patent: July 31, 2018
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Dae-Jung Choi, Jae-Ki Lee, Ki-Soub Yang, Hwang-Un Seo, Hong-Myeong Jeon, Seung-Ryul Choi, A-Ryoung Lee, Han-Hee Kim, Geum-Young Lee, Kang-Hyun Kim
  • Patent number: 9935346
    Abstract: The present invention relates to a battery module, which includes one or more battery cell units, and the battery cell unit includes a battery cell, a fixing member located surrounding an outer circumference surface of the battery cell, and a heat absorbing material located between the battery cell and the fixing member, and as a result, heat generation inside the battery module is suppressed, and ignition between the series-connected battery cell units may be suppressed. Accordingly, excellent charge and discharge efficiency, an excellent cycle property and a lifespan property of the battery may be exhibited without concern for explosion or ignition of the battery module.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: April 3, 2018
    Assignee: LG Chem, Ltd.
    Inventors: Chul Kyu Lee, Hyung Ku Yun, Bum Young Jung, Seung Ryul Choi, Sun Mo An
  • Patent number: 9929221
    Abstract: An organic light emitting diode display device (100) including: a plurality of pixels (101, 102, 103) each including first (101a, 102a, 103a), second (101b, 102b, 103b) and third sub-pixels (101c, 102c, 103c), wherein the first sub-pixels (101a, 102a, 103a) of adjacent pixels (101, 102, 103), the second sub-pixels (101b, 102b, 103b) of adjacent pixels (101, 102, 103) and the third sub-pixels (101c, 102c, 103c) of adjacent pixels (101, 102, 103) constitute a plurality of sub-pixel groups (150); a first bank layer (171) dividing the plurality of sub-pixel groups (150) and dividing the first (101a, 102a, 103a), second (101b, 102b, 103b) and third sub-pixels (101c, 102c, 103c); and a second bank layer (173) on the first bank layer (171), the second bank layer (173) dividing the first (101a, 102a, 103a), second (101b, 102b, 103b) and third sub-pixels (101c, 102c, 103c).
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: March 27, 2018
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Kang-Hyun Kim, Ki-Soub Yang, Seung-Ryul Choi, Kyoung-Jin Park
  • Patent number: 9923036
    Abstract: Disclosed is a display device that may include a thin film transistor array substrate that includes a plurality of first sub-pixels and a plurality of second sub-pixels, wherein one of the plurality of first sub-pixels includes a first emission region and a first non-emission region, and one of the plurality of second sub-pixels includes a second emission region and a second non-emission region; a first bank pattern in the first and second non-emission regions, the first bank pattern including a hydrophilic material; and a second bank pattern on an upper surface of the first bank pattern, the second bank pattern includes a hydrophobic material.
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: March 20, 2018
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Kang Hyun Kim, Ki Soub Yang, Seung Ryul Choi, Kyoung Jin Park
  • Publication number: 20180076439
    Abstract: The present invention relates to a battery pack connected to an electronic device. The battery pack comprises: a battery module provided with a plurality of battery cells which are disposed adjacent to each other and connected to each other in series and on which first and second electrode terminals are disposed; a fuse disposed between the first electrode terminal of the uppermost battery cell and the second electrode terminal of the electronic device; and a switching device provided with a first plate disposed on a top surface of the uppermost battery cell and connected to the first electrode terminal of the uppermost battery cell, a second plate disposed above the first plate and connected to the second electrode terminal of the lowermost battery cell, and a support frame disposed between the first plate and the second plate and having fragility.
    Type: Application
    Filed: July 26, 2016
    Publication date: March 15, 2018
    Applicant: LG CHEM, LTD.
    Inventors: Chul Kyu LEE, Seung Ryul CHOI, Jun PARK, Kyung Hyun KIM
  • Patent number: 9825111
    Abstract: A method of forming an organic light emitting diode (OLED) display device is discussed. The method according to an embodiment includes forming a first bank pattern on a substrate and in an emission region and a non-emission region; forming a second bank pattern on the first bank pattern; forming an organic emission layer on the substrate in the emission region; and forming a planarization film on the substrate to include an opening under the first and second bank patterns in the non-emission region. The second bank pattern is on the first bank pattern in the non-emission region, and the first bank pattern is in the opening of the planarization film in the non-emission region.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: November 21, 2017
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Kyoung Jin Park, Ki Soub Yang, Seung Ryul Choi, Kang Hyun Kim, Sam Jong Lee
  • Patent number: RE48349
    Abstract: An organic light emitting diode display device includes a first substrate including a display region, wherein a plurality of pixel regions are defined in the display region; a first electrode over the first substrate and in each of the plurality of pixel regions; a first bank on edges of the first electrode and including an insulating material blocking penetration of light; a second bank on the first bank and including an insulating material having a hydrophobic property; an organic light emitting layer on the first electrode and a portion of the first bank; and a second electrode on the organic light emitting layer and covering an entire surface of the display region.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: December 8, 2020
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Kang-Hyun Kim, Ki-Soub Yang, Dae-Jung Choi, Seung-Ryul Choi, Han-Hee Kim, Kyoung-Jin Park