Patents by Inventor Seul-a Kim

Seul-a Kim 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: 12369464
    Abstract: A display device includes a substrate including a display area and a non-display area, a light-emitting element disposed in the display area, and a common voltage supply line disposed in the non-display area and electrically connected to the light-emitting element. The common voltage supply line includes at least two main supply lines, a sub-supply line for connecting the at least two main supply lines, and at least one anti-static pattern disposed outside the sub-supply line in a plan view.
    Type: Grant
    Filed: May 20, 2021
    Date of Patent: July 22, 2025
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jae Hyun Lee, Seul-Ki Kim, Seung Rae Kim, Kwang Soo Lee, Ki Su Jin
  • Publication number: 20250234731
    Abstract: A display device includes a first buffer layer disposed on a substrate. An etch stop layer is disposed on the first buffer layer. A second buffer layer is disposed on the etch stop layer. The second buffer layer includes a first hole exposing at least a portion of an upper surface of the etch stop layer. An active layer is disposed on the second buffer layer. The active layer includes a conductive area and a second hole exposing the first hole. An inorganic layer is disposed on the active layer. The inorganic layer fills the first hole and the second hole.
    Type: Application
    Filed: December 12, 2024
    Publication date: July 17, 2025
    Inventors: HYUN KIM, KAP SOO YOON, WOOGEUN LEE, JIN-WON LEE, SEUNG-HA CHOI, SEUL-KI KIM, JEONGJU PARK
  • Publication number: 20250210653
    Abstract: A surface of a LiCoO2-based positive electrode active material to have a rock salt crystal structure is provided. Specifically, a positive electrode active material for a lithium rechargeable battery is provided, including: a core particle containing lithium cobalt oxide doped with aluminum (Al); and a coating layer positioned on a surface of the core particle and containing a cobalt (Co)-based compound having a rock salt crystal structure. A method of producing the positive electrode active material is also provided using a solid-phase method. The positive electrode active material can be applied to a positive electrode, lithium rechargeable battery, battery module, battery pack, and the like.
    Type: Application
    Filed: March 12, 2025
    Publication date: June 26, 2025
    Applicant: LG Energy Solution, Ltd.
    Inventors: Chi Ho Jo, Hyuck Hur, Seul Ki Kim, Wang Mo Jung, Gi Beom Han
  • Patent number: 12321092
    Abstract: This application relates to a pellicle for extreme ultraviolet lithography containing amorphous carbon and a manufacturing method thereof. In one aspect, the pellicle includes a substrate having an opening formed in a central portion, a support layer formed on the substrate to cover the opening, and a pellicle layer formed on the support layer and containing amorphous carbon. The pellicle layer may include a core layer formed on the support layer, and a capping layer formed on the core layer and may further include a buffer layer. At least one of the core layer, the capping layer, or the buffer layer may be an amorphous carbon layer.
    Type: Grant
    Filed: March 18, 2022
    Date of Patent: June 3, 2025
    Assignee: Korea Electronics Technology Institute
    Inventors: Hyeong Keun Kim, Seul Gi Kim, Hyun Mi Kim, Jin Woo Cho, Hye Young Kim
  • Publication number: 20250170833
    Abstract: A printing apparatus includes a stage including a plane extending in a first direction and a second direction crossing the first direction, a first head including first nozzles facing the stage along the first direction, and a second head spaced apart from the first head and including second nozzles facing the stage along the first direction.
    Type: Application
    Filed: November 8, 2024
    Publication date: May 29, 2025
    Inventors: YEJIN KIM, DOOHYUN KIM, SEUL-GI KIM
  • Publication number: 20250169277
    Abstract: An organic light-emitting device and a flat panel display device, the organic-light emitting device including an anode; a cathode; and an organic layer therebetween including an emission layer, a hole transport region between the anode and the emission layer, the hole transport region including at least one of a hole injection layer, a hole transport layer, and an electron blocking layer, an electron transport region between the emission layer and the cathode, the electron transport region including at least one of a hole blocking layer, an electron transport layer, and an electron injection layer, and a buffer layer between the emission layer and the electron transport region, wherein the buffer layer includes a biscarbazole-based derivative and triphenylene-based derivative, and a triplet energy (ET1) of the biscarbazole-based derivative or the triphenylene-based derivative and a triplet energy (ET2) of a dopant of the emission layer satisfy the following relationship: ET1>ET2.
    Type: Application
    Filed: January 17, 2025
    Publication date: May 22, 2025
    Inventors: Naoyuki ITO, Seul-Ong KIM, Youn-Sun KIM, Dong-Woo SHIN, Jung-Sub LEE
  • Publication number: 20250154303
    Abstract: The present invention relates to an ethylene/alpha-olefin copolymer having a high weight average molecular weight and narrow molecular weight distribution, and at the same time, a reduced characteristic relaxation time, thereby showing excellent physical properties, and a method for preparing the same. A resin composition having improved volume resistance and excellent light transmittance may be prepared by using such ethylene/alpha-olefin copolymer. Accordingly, the ethylene/alpha-olefin copolymer may be utilized in various uses in electrical and electronic industrial fields.
    Type: Application
    Filed: January 15, 2025
    Publication date: May 15, 2025
    Applicant: LG Chem, Ltd.
    Inventors: Young Woo Lee, Seul Ki Kim, Dae Woong Lee, Jin Kuk Lee, Eun Jung Lee, Jin Sam Gong, Jung Ho Jun, Jun Hyuk Lee
  • Publication number: 20250141826
    Abstract: Proposed is a method for providing reaction contents by a server. The method may include receiving a request to post a custom content for at least one reaction content and an object related to the custom content on a first user's profile screen from a first user terminal, and in response to a request to view a first user's profile screen from a second user terminal, providing the first user's profile screen comprising the object to the second user terminal. The method may further include providing at least one reaction content for the object to the second user terminal, wherein at least one of the at least one reaction interface is based on the custom content, receiving an interaction with at least one of the at least one reaction interface from the second user terminal, and providing reaction information associated with the interaction to the first user terminal.
    Type: Application
    Filed: October 23, 2024
    Publication date: May 1, 2025
    Inventors: Yoon Jin CHOI, Seul Gi KIM
  • Patent number: 12287568
    Abstract: This application relates to a pellicle for extreme ultraviolet lithography and a manufacturing method thereof using the low-temperature direct growth method of multilayer graphene. In one aspect, the method includes forming an etch stopper on a substrate, forming a seed layer on the etch stopper, the seed layer including at least one of amorphous boron, BN, BCN, B4C, or Me-X (Me is at least one of Si, Ti, Mo, or Zr, and X is at least one of B, C, or N). The method may also include forming a metal catalyst layer on the seed layer; forming an amorphous carbon layer on the metal catalyst layer, and directly growing multilayer graphene on the seed layer through interlayer exchange between the metal catalyst layer and the amorphous carbon layer by performing a low-temperature heat treatment at 450° C. to 600° C.
    Type: Grant
    Filed: March 18, 2022
    Date of Patent: April 29, 2025
    Assignee: Korea Electronics Technology Institute
    Inventors: Hyeong Keun Kim, Seul Gi Kim, Hyun Mi Kim, Jin Woo Cho, Hye Young Kim
  • Patent number: 12282250
    Abstract: This application relates to a pellicle for extreme ultraviolet lithography based on yttrium (Y) and used in a lithography process using extreme ultraviolet rays. In one aspect, the pellicle includes a pellicle layer including a core layer formed of an yttrium-based material expressed as Y-M (M is one of B, Si, O, or F).
    Type: Grant
    Filed: March 18, 2022
    Date of Patent: April 22, 2025
    Assignee: KOREA ELECTRONICS TECHNOLOGY INSTITUTE
    Inventors: Hyeong Keun Kim, Seul Gi Kim, Hyun Mi Kim, Jin Woo Cho, Ki Hun Seong
  • Publication number: 20250121583
    Abstract: A display device includes: a window including a bending area and a non-bending area; an adhesive layer including a first adhesive portion and a second adhesive portion, wherein the first adhesive portion overlaps the bending area, and the second adhesive portion overlaps the non-bending area; and a display module disposed on the adhesive layer, wherein the first adhesive portion is formed by curing a first resin including a first photoinitiator configured to have an initiation reaction induced by a first light, and the second adhesive portion is formed by curing a second resin including a second photoinitiator configured to have an initiation reaction induced by a second light or a thermal initiator, wherein the second light has a different central wavelength from that of the first light.
    Type: Application
    Filed: December 23, 2024
    Publication date: April 17, 2025
    Inventors: Wonjoon CHOI, Seul-Gi KIM, YEJIN KIM, Cheolgeun AN, Euiyun JANG
  • Publication number: 20250125795
    Abstract: A phase mixer circuit is configured to receive a first input clock signal and a second input clock signal, and to generate an intermediate clock signal having an intermediate phase between phases of the first and second input clock signals. The phase mixer circuit is configured to determine a logic value of a mixed code signal, and to generate an output clock signal by mixing one of the first and second input clock signals and the intermediate clock signal.
    Type: Application
    Filed: March 6, 2024
    Publication date: April 17, 2025
    Applicant: SK hynix Inc.
    Inventors: Soon Chul KWON, Min Chang KIM, Seul Gi KIM, Hong Joo SONG, Ic Su OH
  • Patent number: 12262578
    Abstract: An organic light-emitting device and a flat panel display device, the organic-light emitting device including an anode; a cathode; and an organic layer therebetween including an emission layer, a hole transport region between the anode and the emission layer, the hole transport region including at least one of a hole injection layer, a hole transport layer, and an electron blocking layer, an electron transport region between the emission layer and the cathode, the electron transport region including at least one of a hole blocking layer, an electron transport layer, and an electron injection layer, and a buffer layer between the emission layer and the electron transport region, wherein the buffer layer includes a biscarbazole-based derivative and triphenylene-based derivative, and a triplet energy (ET1) of the biscarbazole-based derivative or the triphenylene-based derivative and a triplet energy (ET2) of a dopant of the emission layer satisfy the following relationship: ET1>ET2.
    Type: Grant
    Filed: December 8, 2023
    Date of Patent: March 25, 2025
    Assignee: Samsung Display Co., Ltd.
    Inventors: Naoyuki Ito, Seul-Ong Kim, Youn-Sun Kim, Dong-Woo Shin, Jung-Sub Lee
  • Patent number: 12262629
    Abstract: An organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode, the organic layer including an emission layer. The organic layer includes a first compound represented by Formula 1 and a second compound represented by Formula 2. The first compound may be included in an emission layer, and the second compound may be included in an electron transport region.
    Type: Grant
    Filed: July 7, 2022
    Date of Patent: March 25, 2025
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sung-Soo Bae, Seul-Ong Kim, Dong-Hyun Kim, Sung-Wook Kim, Tsuyoshi Naijo, Hye-In Jeong, Hwan-Hee Cho
  • Publication number: 20250098369
    Abstract: A display device and a method of manufacturing the display device, the display device may include a sub-pixel portion disposed on a base layer and may include a light emitting element area where a light emitting element may be disposed and a sub-pixel area. The light emitting element area and the sub-pixel area may not overlap each other in a plan view.
    Type: Application
    Filed: June 5, 2024
    Publication date: March 20, 2025
    Applicant: Samsung Display Co., LTD.
    Inventors: Dal Rae JIN, Seul Ki KIM
  • Patent number: 12248243
    Abstract: This application relates to a method for direct growth of multilayer graphene used as a core layer of a pellicle for extreme ultraviolet lithography. This application also relates to a method for manufacturing the pellicle for extreme ultraviolet lithography by using the multilayer graphene direct growth method. The multilayer graphene direct growth method may include forming few-layer graphene on a silicon nitride substrate, forming a metal catalyst layer on the few-layer graphene, and forming an amorphous carbon layer on the metal catalyst layer. The method may also include directly growing multilayer graphene from the few-layer graphene used as a seed layer by interlayer exchange between the metal catalyst layer and the amorphous carbon layer through heat treatment.
    Type: Grant
    Filed: November 10, 2021
    Date of Patent: March 11, 2025
    Assignee: Korea Electronics Technology Institute
    Inventors: Hyeong Keun Kim, Seul Gi Kim, Hyun Mi Kim, Hye Young Kim
  • Publication number: 20250079433
    Abstract: disclosure A positive electrode for a lithium secondary battery includes a positive electrode collector; and a positive electrode active material layer which is formed on at least one surface of the positive electrode collector and includes a positive electrode active material, wherein the positive electrode active material layer has a pore volume of 7.0×10?3·cm3/g to 8.0×10?3·cm3/g. A method for preparing the positive electrode is also provided.
    Type: Application
    Filed: January 11, 2023
    Publication date: March 6, 2025
    Applicant: LG Energy Solution, Ltd.
    Inventors: Jong Woo Kim, Gi Beom Han, Eun Sol Lho, Wang Mo Jung, Sang Min Park, Sang Wook Lee, Seul Ki Kim, Hyeong Il Kim
  • Publication number: 20250070156
    Abstract: A positive electrode active material includes a nickel-based lithium composite metal oxide having a Ni content of 80 atm % or greater among transition metals except lithium, and in the form of a single particle or pseudo-single particle. The nickel-based lithium composite metal oxide has a coating layer positioned on the surface thereof, wherein the coating layer contains cobalt. The positive electrode active material also satisfies [Equation 1] 1?XY/Z?3, wherein X is the molar number (mol %) of Co in the coating layer based on 100 moles of the nickel-based lithium composite metal oxide, Y is the average particle diameter (?m) of nodules of the nickel-based lithium composite metal oxide, and Z is D50 (?m) of the positive electrode active material, wherein Z is from 5 ?m to 12 ?m.
    Type: Application
    Filed: November 12, 2024
    Publication date: February 27, 2025
    Applicant: LG Energy Solution, Ltd.
    Inventors: Eun Sol Lho, Jin Tae Hwang, Su Yeon Oh, Byun Chun Park, Sang Min Park, Sang Wook Lee, Seul Ki Kim, Hyeong Il Kim
  • Patent number: 12234307
    Abstract: The present invention relates to an ethylene/alpha-olefin copolymer having a high weight average molecular weight and narrow molecular weight distribution, and at the same time, a reduced characteristic relaxation time, thereby showing excellent physical properties, and a method for preparing the same. A resin composition having improved volume resistance and excellent light transmittance may be prepared by using such ethylene/alpha-olefin copolymer. Accordingly, the ethylene/alpha-olefin copolymer may be utilized in various uses in electrical and electronic industrial fields.
    Type: Grant
    Filed: September 25, 2020
    Date of Patent: February 25, 2025
    Assignee: LG Chem, Ltd.
    Inventors: Young Woo Lee, Seul Ki Kim, Dae Woong Lee, Jin Kuk Lee, Eun Jung Lee, Jin Sam Gong, Jung Ho Jun, Jun Hyuk Lee
  • Patent number: 12226995
    Abstract: A display device includes: a window including a bending area and a non-bending area; an adhesive layer including a first adhesive portion and a second adhesive portion, wherein the first adhesive portion overlaps the bending area, and the second adhesive portion overlaps the non-bending area; and a display module disposed on the adhesive layer, wherein the first adhesive portion is formed by curing a first resin including a first photoinitiator configured to have an initiation reaction induced by a first light, and the second adhesive portion is formed by curing a second resin including a second photoinitiator configured to have an initiation reaction induced by a second light or a thermal initiator, wherein the second light has a different central wavelength from that of the first light.
    Type: Grant
    Filed: November 17, 2020
    Date of Patent: February 18, 2025
    Assignee: Samsung Display Co., Ltd.
    Inventors: Wonjoon Choi, Seul-Gi Kim, Yejin Kim, Cheolgeun An, Euiyun Jang