Patents by Inventor Dong-Sung Lee

Dong-Sung Lee 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: 20250041001
    Abstract: Proposed is an articulation apparatus for a robotic surgical tool, which is capable of inner rotation and outer bending independent of each other. To this end, the articulation apparatus includes an inner rotation part which is rotated by first driving power, and an outer bending part which is bent by second driving power different from the first driving power.
    Type: Application
    Filed: November 8, 2022
    Publication date: February 6, 2025
    Applicant: ROEN Surgical, Inc.
    Inventors: Un-Je YANG, Duk-Yoo KONG, Duk-Sang KIM, Dae-Sung LEE, Dong-Ho LEE
  • Publication number: 20250033471
    Abstract: A non-contact interface device for a vehicle and a method for controlling the same, may display an operation system menu for a driver and passengers to operate various kinds of devices of the vehicle as a hologram, enable a user to operate the displayed operation system menu in a non-contact manner by use of the user's finger or the like, and provide the user with a tactile feedback for a non-contact operation, so that the user can recognize whether to have operated the menu.
    Type: Application
    Filed: November 20, 2023
    Publication date: January 30, 2025
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, Korea Institute of Science and Technology
    Inventors: Dong Gu Kim, Jang Hyeon Lee, Dae Sung Kwon, Hyun Soo Kim, Il Seon Yoo, Byung Chul Lee, Seong Hun Cho, Seung Hyub Baek, Min Seok Kim, Soo Young Jung
  • Publication number: 20250031498
    Abstract: A display panel and a display apparatus including the display panel are presented herein. A display panel according to one or more embodiments includes a substrate; an insulating layer on the substrate; a bank pattern on the insulating layer; a first electrode on the bank pattern; a contact electrode on the insulating layer, the contact electrode spaced apart from the bank pattern; a light-emitting element on the first electrode; a first optical layer surrounding the light-emitting element, the first optical layer comprising an organic insulating material including metal particles; a second optical layer on the contact electrode; and a third optical layer on the first optical layer.
    Type: Application
    Filed: May 28, 2024
    Publication date: January 23, 2025
    Inventors: Yong Hoon Lee, Woo Sung Kim, Jong Soo Han, Sang Hak Shin, Dong Kyu Kim, Hyoung Sun Park, Hyun Seok Na, Hyun Chyol Shin, Seong Soo Cho
  • Patent number: 12202924
    Abstract: A method for separating polybutene, the method including: (1) introducing a polybutene solution into a distillation column, the solution including polybutene, a halogenated hydrocarbon solvent, and a non-polar hydrocarbon solvent and having a viscosity of 1 cp to 50 cp measured at 25° C. using a rotational viscometer; (2) collecting an upper stream including the halogenated hydrocarbon solvent and a portion of the non-polar hydrocarbon solvent from an upper portion of the distillation column, and collecting a lower stream including the polybutene and a remaining portion of the non-polar hydrocarbon solvent from a lower portion of the distillation column, where the lower stream has a viscosity of 10 cp to 150 cp; and (3) separating the remaining portion of the non-polar hydrocarbon solvent and the polybutene from the lower stream.
    Type: Grant
    Filed: January 17, 2020
    Date of Patent: January 21, 2025
    Assignee: LG Chem, Ltd.
    Inventors: Woo Sung Hwang, Jeong Seok Lee, Won Hee Kim, Hye Mi Kim, Gyeong Shin Choi, Dong Hyun Jo
  • Patent number: 12205524
    Abstract: A display device comprises a first substrate including a first contact hole, a first barrier insulating layer disposed on the first substrate and including a second contact hole, a fan-out line disposed in a first metal layer on the first barrier insulating layer, the fan-out line including a protruding part inserted in the second contact hole to protrude from below the first barrier insulating layer, and a recessed part formed by the second contact hole, an etching electrode disposed in the recessed part of the fan-out line, a second substrate disposed on the fan-out line and the etching electrode and including a third contact hole, a display layer disposed on the second substrate, and a flexible film disposed below the first substrate and inserted in the first contact hole to be electrically connected to the protruding part of the fan-out line.
    Type: Grant
    Filed: November 1, 2022
    Date of Patent: January 21, 2025
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dong Sung Lee, Byung Hoon Kim, Tae Oh Kim, So Chan Park
  • Publication number: 20250018469
    Abstract: A prealloy powder for powder metallurgy, a sintered part using the same, and a manufacturing method thereof, which is configured to prevent deterioration of core hardness along with surface hardening while maintaining excellent tensile strength by adjusting an alloy composition so that a bainite phase is formed. The sintered part, which is manufactured by powder metallurgy, includes 1.05 to 1.55 wt % of Cr, 0.3 to 0.5 wt % of Mo, 0.5 to 0.7 wt % of C, and a remaining of Fe and other unavoidable impurities.
    Type: Application
    Filed: October 30, 2023
    Publication date: January 16, 2025
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, KOREA SINTERED METAL CO., LTD.
    Inventors: Hak Soo Kim, Go Woon Jung, Jin Hyeon Lee, Jung Hyuk Kim, Joo Sung Park, Dong Kuk Jeong
  • Patent number: 12066596
    Abstract: A cover window includes a base layer; a first coating layer on the base layer; and a second coating layer on the first coating layer. The first coating layer directly contacts a first part of an upper surface of the base layer and exposes a second part of the upper surface of the base layer, the upper surface of the base layer consists of the first part and the second part, and the second coating layer directly contacts the second part of the upper surface of the base layer exposed by the first coating layer, and an upper surface of the first coating layer.
    Type: Grant
    Filed: June 28, 2021
    Date of Patent: August 20, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ji Hyun Ko, Hyun Seung Seo, Dong Sung Lee, Yong Kyu Kang, Hui Yeon Shon, Hyun Kyung Yun
  • Patent number: 12058888
    Abstract: A method of manufacturing a polycrystalline silicon layer for a display device includes the steps of forming an amorphous silicon layer on a substrate, cleaning the amorphous silicon layer with hydrofluoric acid, rinsing the amorphous silicon layer with hydrogenated deionized water, and irradiating the amorphous silicon layer with a laser beam to form a polycrystalline silicon layer.
    Type: Grant
    Filed: October 18, 2021
    Date of Patent: August 6, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dong-Sung Lee, Seo Jong Oh, Byung Soo So, Dong-min Lee
  • Patent number: 12041715
    Abstract: A cover window includes a base layer including a first flat portion and a first bending portion bent from a first end of the first flat portion and a coating layer including a first coating portion disposed on the first flat portion and a second coating portion disposed on the first bending portion and having a thickness less than a thickness of the first coating portion. A first end of the second coating portion has a thickness greater than a thickness of a second end of the second coating portion, and the first end of the second coating portion is closer to the first coating portion than the second end of the second coating portion is.
    Type: Grant
    Filed: July 24, 2020
    Date of Patent: July 16, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyunseung Seo, Jihyun Ko, Dong-Sung Lee, Changmoo Lee, Jonghwan Cho
  • Patent number: 11989481
    Abstract: A display device, a method of manufacturing the same and a tiled display device including the same are provided. The display device includes a substrate including a first contact hole, a laser absorption layer on the substrate and containing amorphous silicon, a first barrier insulating layer on the laser absorption layer, a fan-out line on the first barrier insulating layer as a first metal layer and including a pad portion in a second contact hole located in the first barrier insulating layer and the laser absorption layer, a display layer on the fan-out line, and a flexible film under the substrate and in the first contact hole and electrically connected to the pad portion.
    Type: Grant
    Filed: March 10, 2023
    Date of Patent: May 21, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventor: Dong Sung Lee
  • Publication number: 20240155926
    Abstract: A display device of a tiled display includes a first substrate including an opening hole, a laser absorption layer disposed on the first substrate, including amorphous silicon, and multiple first contact holes, a first barrier insulating layer disposed on the laser absorption layer and including multiple second contact holes overlapping the first contact holes, multiple pad portions disposed on the first barrier insulating layer and partially disposed in the second contact holes, a second barrier insulating layer disposed on the first barrier insulating layer and the pad portions, a display layer disposed on the second barrier insulating layer, and a flexible film disposed under the first substrate, inserted into the opening hole, and electrically connected to the pad portions. A portion of the first barrier insulating layer is disposed in each of the first contact holes. The pad portions are electrically insulated from the laser absorption layer.
    Type: Application
    Filed: July 25, 2023
    Publication date: May 9, 2024
    Applicant: Samsung Display Co., LTD.
    Inventors: Dong Sung LEE, Byung Hoon KIM, Tae Oh KIM, Se Hun CHOI
  • Publication number: 20240153966
    Abstract: A display device includes a substrate including an opening hole, a first barrier insulating layer on the substrate, a plurality of first pad portions on the first barrier insulating layer and in a first contact hole partially penetrating the first barrier insulating layer, a second barrier insulating layer on the first barrier insulating layer and the plurality of first pad portions, a plurality of second pad portions on the second barrier insulating layer and in a second contact hole partially penetrating the first barrier insulating layer and the second barrier insulating layer, a third barrier insulating layer on the second barrier insulating layer and the plurality of second pad portions, a display layer on the third barrier insulating layer, and a flexible film under the substrate, and inserted into the opening hole to be electrically connected to the plurality of first and second pad portions.
    Type: Application
    Filed: September 25, 2023
    Publication date: May 9, 2024
    Inventors: Se Hun CHOI, Dong Sung LEE, Byung Hoon KIM, Tae Oh KIM
  • Patent number: 11961851
    Abstract: A laser apparatus includes a laser generator configured to generate a first laser beam proceeding along a first direction, and an inversion module configured to convert the first laser beam to a second laser beam proceeding along the first direction, the inversion module including a splitter configured to form a reflected laser beam by partially reflecting the first laser beam, and a transmitted laser beam by partially transmitting the first laser beam, and a prism configured to reflect the reflected laser beam.
    Type: Grant
    Filed: February 15, 2022
    Date of Patent: April 16, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dong-min Lee, Ji-Hwan Kim, Jongoh Seo, Byung Soo So, Dong-Sung Lee, Jonghoon Choi
  • Publication number: 20240113270
    Abstract: A display device includes a base layer including a first base layer and a second base layer disposed on a rear surface of the first base layer, light emitting elements disposed on a surface of the first base layer, and pads including a first pad and a second pad, which are disposed on the rear surface of the first base layer and are spaced apart from each other. The base layer further includes blocking layers which are disposed between the first base layer and the second base layer and at least portions of the blocking layers do not overlap the pads in a plan view. The blocking layers include a first blocking layer and a second blocking layer, which are disposed in different layers.
    Type: Application
    Filed: August 14, 2023
    Publication date: April 4, 2024
    Applicant: Samsung Display Co., LTD.
    Inventors: Se Hun CHOI, Dong Sung LEE, Byung Hoon KIM, Tae Oh KIM
  • Publication number: 20240105897
    Abstract: A display device comprises a first substrate comprising a first contact hole, a laser absorption layer disposed on the first substrate and containing amorphous silicon, a first barrier insulating layer disposed on the laser absorption layer, fan-out lines disposed in a metal layer on the first barrier insulating layer and comprising pad portions inserted into second contact holes provided in the first barrier insulating layer and the laser absorption layer, a second barrier insulating layer disposed on the metal layer, a second substrate disposed on the second barrier insulating layer, and a display layer disposed on the second substrate. The second substrate is inserted into a third contact hole provided in the second barrier insulating layer, the first barrier insulating layer, and the laser absorption layer disposed between the pad portions.
    Type: Application
    Filed: July 21, 2023
    Publication date: March 28, 2024
    Applicant: Samsung Display Co., LTD.
    Inventors: Se Hun CHOI, Dong Sung LEE, Mi Sun KIM, Byung Hoon KIM, Tae Oh KIM
  • Patent number: 11942481
    Abstract: A display device may include a thin film transistor disposed on a substrate, and a display element electrically connected to the thin film transistor. The thin film transistor may include an active pattern including polycrystalline silicon, a gate insulation layer disposed on the active pattern, and a gate electrode disposed on the gate insulation layer. An average value of grain sizes of the active pattern may be in a range of about 400 nm to about 800 nm. An RMS value of a surface roughness of the active pattern may be about 4 nm or less. A method of manufacturing a polycrystalline silicon layer may include cleaning an amorphous silicon layer with hydrofluoric acid, rinsing the amorphous silicon layer with hydrogenated deionized water, and irradiating the amorphous silicon layer with a laser beam having an energy density of about 440 mJ/cm2 to about 490 mJ/cm2.
    Type: Grant
    Filed: October 26, 2021
    Date of Patent: March 26, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dong-Sung Lee, Jongoh Seo, Byung Soo So, Dong-min Lee, Yeon Hee Jeon, Jonghoon Choi
  • Publication number: 20240083806
    Abstract: A method of manufacturing a window includes preparing a base material layer, forming a first hard coating layer on the base material layer, and forming a second hard coating layer on the first hard coating layer. The forming of the second hard coating layer is performed in an environment having an oxygen concentration of about 0.01% to about 0.1%.
    Type: Application
    Filed: November 16, 2023
    Publication date: March 14, 2024
    Inventors: Dong-Sung LEE, Hyunseung SEO, Hui yeon SHON, Hyunkyung YUN, Changmoo LEE, JONGHWAN CHO, Yongkyu KANG, Jihyun KO
  • Patent number: 11903247
    Abstract: A method of manufacturing a polycrystalline silicon layer for a display device includes the steps of forming an amorphous silicon layer on a substrate, cleaning the amorphous silicon layer with hydrofluoric acid, rinsing the amorphous silicon layer with hydrogenated deionized water, and irradiating the amorphous silicon layer with a laser beam to form a polycrystalline silicon layer.
    Type: Grant
    Filed: October 18, 2021
    Date of Patent: February 13, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dong-Sung Lee, Seo Jong Oh, Byung Soo So, Dong-min Lee
  • Patent number: 11873245
    Abstract: A method of manufacturing a window includes preparing a base material layer, forming a first hard coating layer on the base material layer, and forming a second hard coating layer on the first hard coating layer. The forming of the second hard coating layer is performed in an environment having an oxygen concentration of about 0.01% to about 0.1%.
    Type: Grant
    Filed: October 22, 2020
    Date of Patent: January 16, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dong-Sung Lee, Hyunseung Seo, Hui yeon Shon, Hyunkyung Yun, Changmoo Lee, Jonghwan Cho, Yongkyu Kang, Jihyun Ko
  • Patent number: 11854804
    Abstract: A laser irradiation method includes a first scanning wherein a laser beam is scanned in a first region having a width in the X direction and a length in the Y direction by moving a laser irradiation area on the surface of the substrate along the Y direction using a spot laser beam, and a second scanning wherein laser beam is scanned in a second region having a width in the X direction and a length in the Y direction by moving a laser irradiation area on the surface of the substrate along the Y direction using the spot laser beam. A center of the second region is spaced apart from a center of the first region in the X direction.
    Type: Grant
    Filed: December 22, 2021
    Date of Patent: December 26, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hiroshi Okumura, Jongjun Baek, Dong-Sung Lee