Patents by Inventor Eung Jin JANG

Eung Jin JANG 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: 11906442
    Abstract: An exemplary embodiment of the present invention provides a foreign substance inspection system for a display unit, including: a lighting unit configured to provide incident light to a display unit having an organic light emitting display panel; and a foreign substance detecting unit configured to receive incident light that is reflected by the display unit and detect whether a foreign substance is introduced into the display unit.
    Type: Grant
    Filed: June 21, 2019
    Date of Patent: February 20, 2024
    Assignee: LG CHEM, LTD
    Inventors: Beom Seok Lee, Chan Soo Kim, Eung Jin Jang, Sung Hyun Baek, Yu Jin Lim
  • Publication number: 20230343989
    Abstract: A method of manufacturing a pouch type battery cell according to an embodiment of the present disclosure includes forming an embossing part in a part of a pouch film by using an embossing punch part. A pouch forming apparatus for forming a receiving part of the pouch film includes an embossing punch part, a die part serving as a passage through which the punch part moves, and a blank holder in contact with the embossing punch part in the die part.
    Type: Application
    Filed: September 29, 2021
    Publication date: October 26, 2023
    Applicant: LG Energy Solution, Ltd.
    Inventors: Sung Chul Park, Eung Jin Jang, Sin Young Park, Dong Hyeuk Park
  • Publication number: 20230264430
    Abstract: A sealing apparatus for a secondary battery is disclosed, the sealing apparatus configured to seal a battery case of the secondary battery with an electrode assembly therein. The sealing apparatus comprises: a pair of sealing blocks which press the outer circumferential surface of the battery case; and a heating unit which is provided in the pair of sealing blocks and heat the pair of sealing blocks. The pair of sealing blocks comprise: lead sealing regions configured to press the lead sealing portion of the battery case; and case sealing regions configured to press the case sealing portion of the battery case. The heating unit heats the lead sealing regions and the case sealing regions of the pair of sealing blocks at different temperatures.
    Type: Application
    Filed: August 5, 2021
    Publication date: August 24, 2023
    Applicant: LG Energy Solution, Ltd.
    Inventors: Yoon Bong Wi, Eung Jin Jang, Sin Young Park, Tae Won Kang, Dong Hyeuk Park
  • Patent number: 11724484
    Abstract: A method for manufacturing a display unit according to an exemplary embodiment of one aspect of the present invention includes: unwinding a first film from a first film roll, and carrying the first film; attaching a second film onto the carried first film and forming an elongated film laminated body; forming a cutting line in the film laminated body in a width direction at intervals along a longitudinal direction and forming a film sheet piece; and laminating the film sheet piece on a first surface of a panel.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: August 15, 2023
    Assignee: SHANJIN OPTOELECTRONICS (SUZHOU) CO., LTD.
    Inventors: Beom Seok Lee, Hang Suk Choi, Eung Jin Jang
  • Publication number: 20230238566
    Abstract: An electrode assembly is provided. The electrode assembly includes a separator sheet, which is formed in a single sheet shape. The separator sheet includes a first folding folded to one side and a second folding folded to the other side. The first folding and the second folding are repeated at certain intervals to form separators. Unit cells, which are formed by stacking a plurality of electrodes and the separators, are respectively disposed in a plurality of first spaces formed by the first folding of the separator sheet. Independent electrodes, are respectively disposed in a plurality of second spaces formed by the second folding of the separator sheet and have a first polarity.
    Type: Application
    Filed: April 6, 2021
    Publication date: July 27, 2023
    Applicant: LG Energy Solution, Ltd.
    Inventors: Yoon Bong Wi, Tae Won Kang, Dong Hyeuk Park, Eung Jin Jang
  • Patent number: 11679583
    Abstract: A method of manufacturing a display unit including: preparing an optical film; forming a first alignment mark on the optical film; forming a cut-out line, corresponding to a predetermined closed curve layout, on the optical film based on a position of the first alignment mark; preparing a panel having a second alignment mark; aligning the optical film and the panel based on the positions of the first alignment mark and the second alignment mark; and laminating the optical film, after the processing of forming the cut-out line, on the panel.
    Type: Grant
    Filed: March 13, 2019
    Date of Patent: June 20, 2023
    Assignee: SHANJIN OPTOELECTRONICS (SUZHOU) CO., LTD.
    Inventors: Beom Seok Lee, Hang Suk Choi, Eung Jin Jang
  • Publication number: 20230173705
    Abstract: A cartridge type electrode cutting apparatus is configured for detachably attaching to a main body. The electrode cutting apparatus includes an upper unit disposed above an electrode sheet, a lower unit disposed under the electrode sheet, and a guide portion configured to guide upward and downward movement of the upper unit. The upper unit includes an upper cutter configured to cut the electrode sheet, an upper holder to which the upper cutter is fixed, and an upper frame to which the upper holder is mounted. The lower unit includes a lower cutter configured to cut the electrode sheet and a lower frame to which the lower cutter is fixed.
    Type: Application
    Filed: July 21, 2021
    Publication date: June 8, 2023
    Applicant: LG Energy Solution, Ltd.
    Inventors: Hyeon Jin Lee, Eung Jin Jang, Sin Young Park, Dong Hyeuk Park, Sang Wook Kim
  • Patent number: 11415823
    Abstract: A display unit manufacturing system including: a panel conveyance route including an optical film attaching unit configured to attach an optical film to a panel; an inspection unit which inspects whether the panel having the optical film attached thereto is defective and identifies a defective panel; a panel storing unit which stores the defective panel after the optical film is separated therefrom; and a control unit which controls whether the panel stored in the panel storing unit is supplied to the panel conveyance route.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: August 16, 2022
    Assignee: SHANJIN OPTOELECTRONICS (SUZHOU) CO., LTD.
    Inventors: Beom Seok Lee, Yu Jin Lim, Hang Suk Choi, Eung Jin Jang
  • Patent number: 11391678
    Abstract: Provided is a device for detecting a defect of an optical film, comprising a light emitting unit, a reflection unit, a screen, and an image capturing unit, and a method for detecting a defect of an optical film, comprising emitting light to a reflection unit, projecting the light reflected by the reflection unit onto an optical film, capturing an image of a screen which displays a projection shape obtained by projecting the light onto the optical film, and analyzing the image.
    Type: Grant
    Filed: July 27, 2018
    Date of Patent: July 19, 2022
    Assignee: SHANJIN OPTOELECTRONICS (SUZHOU) CO., LTD.
    Inventors: Ho Jin Kim, Myoung Gon Yang, Hang Suk Choi, Eung Jin Jang
  • Patent number: 11370212
    Abstract: The present invention relates to an optical film laminating system for laminating an optical film on a panel in order to manufacture a display unit wherein a control unit which sets, in accordance with attachment conditions, an optical film laminating mode in respect to the panel to at least one of a first mode in which the panel and the optical film are inputted together between a first roller unit and a second roller unit so that the optical film is laminated on the panel, and a second mode in which the second panel conveying unit holds the panel by suction and conveys the panel and the optical film is inputted between the panel and an attachment roller unit, which is any one of the first roller unit and the second roller unit, so that the optical film is laminated on the panel.
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: June 28, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Beom Seok Lee, Yu Jin Lim, Chan Soo Kim, Eung Jin Jang
  • Publication number: 20210268788
    Abstract: The present invention relates to an optical film laminating system for laminating an optical film on a panel in order to manufacture a display unit wherein a control unit which sets, in accordance with attachment conditions, an optical film laminating mode in respect to the panel to at least one of a first mode in which the panel and the optical film are inputted together between a first roller unit and a second roller unit so that the optical film is laminated on the panel, and a second mode in which the second panel conveying unit holds the panel by suction and conveys the panel and the optical film is inputted between the panel and an attachment roller unit, which is any one of the first roller unit and the second roller unit, so that the optical film is laminated on the panel.
    Type: Application
    Filed: February 13, 2019
    Publication date: September 2, 2021
    Inventors: Beom Seok Lee, Yu Jin LIM, Chan Soo KIM, Eung Jin JANG
  • Publication number: 20210255115
    Abstract: An exemplary embodiment of the present invention provides a foreign substance inspection system for a display unit, including: a lighting unit configured to provide incident light to a display unit having an organic light emitting display panel; and a foreign substance detecting unit configured to receive incident light that is reflected by the display unit and detect whether a foreign substance is introduced into the display unit.
    Type: Application
    Filed: June 21, 2019
    Publication date: August 19, 2021
    Inventors: Beom Seok LEE, Chan Soo KIM, Eung Jin JANG, Sung Hyun BAEK, Yu Jin LIM
  • Patent number: 11084265
    Abstract: A system for manufacturing a laminated film, in which a first film and a second film are sequentially laminated, and the system includes: a film supplying part which supplies the first film and the second film; a bonding part which includes a first roll and a second roll that rotate in opposite directions, and compresses the first film and the second film supplied from the film supplying part and bonds the first film and the second film as the laminated film; and a bending inducing part which supports and bends the laminated film bonded and output from the bonding part, in which the second roll shifts in a direction along a circumference of a virtual circle having a larger radius than a radius of the first roll to control the bending of the laminated film.
    Type: Grant
    Filed: October 19, 2017
    Date of Patent: August 10, 2021
    Assignee: SHANJIN OPTOELECTRONICS (SUZHOU) CO., LTD.
    Inventors: Beom Seok Lee, Hang Suk Choi, Jae Hoon Choi, Eung Jin Jang, Suk Jae Lee, Ju Young Jeoung, Kyu Sung Hwang, Sung Kyum Kim
  • Publication number: 20210226176
    Abstract: A system for manufacturing an optical display element by laminating an optical film on one surface of a rectangular organic light emitting display panel, the system including: a panel supply unit to which an organic light emitting display panel is supplied; a panel conveying unit which conveys the supplied organic light emitting display panel; an optical film supply unit which supplies an optical film by unwinding the optical film from a raw optical film roll; a laminating unit which laminates the optical film on one surface of the organic light emitting display panel; and a turning unit which rotates the organic light emitting display panel by 90° before the optical film is laminated on one surface of the organic light emitting display panel when a width-directional edge of the supplied organic light emitting display panel does not correspond to a width of the raw optical film roll.
    Type: Application
    Filed: June 28, 2019
    Publication date: July 22, 2021
    Inventors: Beom Seok Lee, Chan Soo Kim, Eung Jin Jang, Sung Hyun Baek, Yu Jin Lim
  • Publication number: 20210178742
    Abstract: A method of manufacturing a display unit including: preparing an optical film; forming a first alignment mark on the optical film; forming a cut-out line, corresponding to a predetermined closed curve layout, on the optical film based on a position of the first alignment mark; preparing a panel having a second alignment mark; aligning the optical film and the panel based on the positions of the first alignment mark and the second alignment mark; and laminating the optical film, after the processing of forming the cut-out line, on the panel.
    Type: Application
    Filed: March 13, 2019
    Publication date: June 17, 2021
    Inventors: Beom Seok LEE, Hang Suk CHOI, Eung Jin JANG
  • Publication number: 20210114245
    Abstract: Disclosed is a method that may include the steps of: (a) previously acquiring information on defect positions of the optical film along the length direction of the optical film; (b) dividing the whole area of the optical film into a plurality of large calculation areas for deriving a plurality of cutting positions, based on a normal cutting distance condition and minimum cutting distance condition in the length direction, and the information on the defect positions of the optical film; and (c) determining the cutting positions from an area, in which none of the cutting positions are determined in the length direction of the optical film, among the plurality of large calculation areas.
    Type: Application
    Filed: September 27, 2019
    Publication date: April 22, 2021
    Inventors: Soon Ki HEO, Mun Cheon KWAK, Eung Jin JANG, Chan Soo KIM, Kyu Hwang LEE
  • Patent number: 10946589
    Abstract: Exemplary embodiments of the present invention provide an optical film attachment system which is connected to a downstream device and includes a panel conveyance path, the optical film attachment system including: a connection unit which connects the panel conveyance path and the downstream device and conveys the panel; a first inspection unit which is positioned on the panel conveyance path and finds out whether the panel with the attached optical film has a defect; and a second inspection unit which is positioned at a position spaced apart from the panel conveyance path and re-inspects a defect-determined panel determined as a defective panel by inspection by the first inspection unit; in which the connection unit includes a main conveyance path in which a first conveyance unit and a second conveyance unit are sequentially arranged in a conveyance direction of the panel conveyance path, a first auxiliary conveyance path which connects the first conveyance unit and the second inspection unit and is bypassed
    Type: Grant
    Filed: September 14, 2018
    Date of Patent: March 16, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Beom Seok Lee, Ju Young Jeoung, Kyoung Sik Kim, Hang Suk Choi, Eung Jin Jang
  • Publication number: 20210063780
    Abstract: A display unit manufacturing system including: a panel conveyance route including an optical film attaching unit configured to attach an optical film to a panel; an inspection unit which inspects whether the panel having the optical film attached thereto is defective and identifies a defective panel; a panel storing unit which stores the defective panel after the optical film is separated therefrom; and a control unit which controls whether the panel stored in the panel storing unit is supplied to the panel conveyance route.
    Type: Application
    Filed: March 20, 2019
    Publication date: March 4, 2021
    Inventors: Beom Seok LEE, Yu Jin LIM, Hang Suk CHOI, Eung Jin JANG
  • Patent number: 10821553
    Abstract: A method of cutting a polarizing plate by using a laser, and a polarizing plate cut using the same. A beam shape of the laser is configured to have an elliptical shape and a major axis of the elliptical shape parallel to a cutting direction to provide excellent cross-sectional quality and improved productivity.
    Type: Grant
    Filed: September 22, 2015
    Date of Patent: November 3, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Beom Seok Lee, Eung Jin Jang, Sukjae Lee, Kyoung Sik Kim
  • Patent number: RE48331
    Abstract: A film tension control system according to an embodiment of the present disclosure includes a delamination unit installed on a transfer path of a polarizing plate to delaminate a release film from a polarizing film, the polarizing plate including the polarizing film and the release film attached to one surface of the polarizing film, an inspection unit installed on a transfer path of the polarizing film to inspect if impurities are present in an adhesive layer formed on one surface of the polarizing film, a tension indication unit installed on a movement path of the release film to indicate a degree of tension applied to the release film, a re-lamination unit to re-laminate the release film having passed through the tension indication unit on the adhesive layer of the polarizing film having passed through the inspection unit, and a tension adjustment unit installed on the transfer path of the re-laminated polarizing plate to adjust the tension of the optical film and the release film.
    Type: Grant
    Filed: March 15, 2019
    Date of Patent: December 1, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Eun-Je Kim, Eung-Jin Jang, Jae-Ok Shin, Youn-Su Kim, Tae-Sick Kim, Jung-Kyu Park, Young-Sun Bang, Eui-Bong Ha, Dong-Ki Hwang, Jung-Sik Yoon