Patents by Inventor Dong Jo

Dong Jo 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: 20250228083
    Abstract: Provided are a display device and a method for manufacturing the display device. A display device includes a second substrate including a soft material, light-emitting elements above the second substrate, and a first substrate below the second substrate, including a hard material, and further including a second sub-substrate on one side of a bending area where the second substrate is bent, and a first sub-substrate on another side of the bending area, below the light-emitting elements, having a length that is about 50 times to about 200 times a length of the second sub-substrate, and including a first surface, a second surface opposite to the first surface, a first side surface between the first surface and the second surface, and adjacent to the bending area, and a first inclined surface between the first surface and the first side surface.
    Type: Application
    Filed: August 26, 2024
    Publication date: July 10, 2025
    Inventors: Seung Min LEE, Dong Jo KIM, Hyun KIM, Seong Geun WON, Je Won YOO, Dan Bi CHOI, Seung Wan HONG, Souk June HWANG
  • Publication number: 20250226536
    Abstract: An insulation-layer forming composition for a lithium secondary battery, the composition not including carboxymethylcellulose, and comprising a conjugated diene copolymer as a binder polymer; a non-aqueous organic solvent; and an emulsifier. A gel content of the conjugated diene copolymer is 70 wt % or more with respect to a total weight of the conjugated diene copolymer, and a content of the emulsifier is 0.3 wt % or more with respect to the total weight of the conjugated diene copolymer. A cathode comprising the insulation-layer forming composition, a lithium secondary battery including the cathode, and a method of manufacturing the cathode are also provided.
    Type: Application
    Filed: April 4, 2023
    Publication date: July 10, 2025
    Applicant: LG Chem, Ltd.
    Inventors: Min Ah Kang, Chang Bum Ko, Ye Ji Kim, Dong Jo Ryu, Seon Hee Han
  • Publication number: 20250192200
    Abstract: A fuel cell system includes a fuel cell including an anode, a cathode, and an electrolyte membrane, where the anode and the cathode face each other across the electrolyte membrane, and where the fuel cell is configured to generate power using a fuel and an oxidizing agent; a first supply path configured to supply the fuel to the anode; a first circulation path configured to supply unreacted fuel from the anode to the first supply path; a second supply path configured to supply the oxidizing agent to the cathode; a second circulation path configured to supply unreacted oxidizing agent from the cathode to the second supply path; and a third path connecting the second circulation path and the first circulation path, the third path configured to supply at least a portion of the unreacted fuel to the second circulation path.
    Type: Application
    Filed: April 25, 2024
    Publication date: June 12, 2025
    Applicant: HANWHA AEROSPACE CO., LTD.
    Inventors: Dong Jun SEO, Dong Jo OH
  • Patent number: 12322805
    Abstract: The present disclosure relates to an electrode binder composition for a rechargeable battery and an electrode mixture comprising the same. The electrode binder composition for a rechargeable battery of the present disclosure not only has excellent properties in terms of binding strength, mechanical properties, and the like, but also can maintain structural stability of an electrode even after repeated charge/discharge cycles, thus improving rechargeable battery performances.
    Type: Grant
    Filed: May 28, 2020
    Date of Patent: June 3, 2025
    Assignee: LG Chem, Ltd.
    Inventors: Seon Hee Han, Jung Sup Han, Min Ah Kang, Wooseok Choi, Dong Jo Ryu, Se Eun Lee, Jeong Man Son, Byoung Yun Kim, Cheolhoon Choi, Sungjin Lee
  • Patent number: 12300821
    Abstract: There is provided an anode binder materials that can be converted into an anode binder having heat resistance, chemical resistance, excellent binding force and durability, and the like, as prerequisites for improving the performances of lithium rechargeable batteries, wherein the anode binder material comprises a vulcanization accelerator comprising a metal-organic framework (MOF); a styrene-butadiene-based copolymer; and sulfur molecule (S8).
    Type: Grant
    Filed: October 14, 2020
    Date of Patent: May 13, 2025
    Assignee: LG Chem, Ltd.
    Inventors: Sungjin Lee, Jeong Man Son, Dong Jo Ryu, Seon Hee Han, Jung Sup Han, Min Ah Kang, Jungeun Woo, Cheolhoon Choi
  • Publication number: 20250149587
    Abstract: A secondary battery binder composition includes: emulsion polymer particles A having a core-shell structure, which includes a core part and a shell part occupying a part or all of the surface of the core part; and emulsion polymer particles B having no core-shell structure. The binder composition satisfies 50<N(A)/N(B)<400, wherein N(A) is the number of emulsion polymer particles A having a core-shell structure, and N(B) is the number of emulsion polymer particles B having no core-shell structure.
    Type: Application
    Filed: April 12, 2023
    Publication date: May 8, 2025
    Applicant: LG Chem, Ltd.
    Inventors: Seon Hee Han, Min Ah Kang, Jung Sup Han, Dong Jo Ryu, Jungeun Woo, Cheolhoon Choi
  • Publication number: 20250127933
    Abstract: The present invention relates to a method and a structure for verifying the effectiveness of a linker in a ligand-targeted drug delivery system. The structure includes a fluorescent probe, which replaces a drug in the ligand-targeted drug delivery system and is linked to the linker whose effectiveness is to be verified. The fluorescent probe consists of a fluorophore which fluoresces when the linker in the ligand-targeted drug delivery system is cleaved, or consists of a combination of the fluorophore and a spacer. According to the structure and method of the present invention, it is possible to easily and simply confirm whether the linker in the ligand-targeted drug delivery system effectively releases the drug by being stably cleaved in vivo, thereby reducing the development period and cost of ligand-targeted drugs.
    Type: Application
    Filed: October 23, 2023
    Publication date: April 24, 2025
    Inventors: Dong Jo CHANG, Sung-Tae YEE
  • Publication number: 20250115779
    Abstract: A manufacturing method of a cathode binder or a cathode insulating solution for a lithium secondary battery includes: adding a non-aqueous organic solvent to a water-dispersed conjugated diene latex, followed by heating and decompressing, to replace water, which is a dispersion solvent of conjugated diene latex particles, with a non-aqueous organic solvent. A cathode binder or a cathode insulating solution and a lithium secondary battery including the cathode binder or the cathode insulation solution prepared according to the method is also provided.
    Type: Application
    Filed: April 4, 2023
    Publication date: April 10, 2025
    Applicant: LG Chem, Ltd.
    Inventors: Min Ah Kang, Seon Hee Han, Chang Bum Ko, Dong Jo Ryu, Doyun Kim
  • Publication number: 20250098456
    Abstract: A display device includes a substrate including a main region and a pad area; a buffer layer on the main region of the substrate; a first electrode on the buffer layer; a first wiring protection layer on the substrate, the first wiring protection layer overlapping a bending area located between the main region and the pad area; a signal line on the first electrode and the first wiring protection layer; a display element layer on the signal line, the display element layer overlapping the main region; and a bending protection layer on the signal line, the bending protection layer overlapping the bending area, and the substrate includes a first substrate overlapping the main region, and a second substrate spaced apart from the first substrate with the bending area therebetween, and overlapping the pad area.
    Type: Application
    Filed: June 27, 2024
    Publication date: March 20, 2025
    Inventors: Seung Min LEE, Dong Jo KIM, Hyun KIM, Dan Bi CHOI
  • Publication number: 20250053199
    Abstract: A display device includes a first substrate including a first area, a second area, and a bending area that is between the first area and the second area, and including a second inclined surface facing the bending area, a light-emitting element at the first area, and a first bending-protection layer at the first area and the second area, not overlapping the bending area, and including a first inclined surface facing the bending area and aligned with the second inclined surface.
    Type: Application
    Filed: April 1, 2024
    Publication date: February 13, 2025
    Inventors: Seong Geun WON, Dong Jo KIM, Hyun KIM, Je Won YOO, Seung Min LEE, Dan Bi CHOI, Souk June HWANG
  • Publication number: 20250057029
    Abstract: There is provided a display device including a second substrate corresponding to a main area, a pad area, and a bending area between the main area and the pad area, a first substrate at the main area and at the pad area and beneath the second substrate, and a display element layer at the main area and above the second substrate, wherein the first substrate includes a first sub-substrate overlapped with the main area, and including a first surface adjacent the second substrate, a second surface opposite to the first surface, and a first side directed toward the bending area, and a second sub-substrate spaced apart from the first sub-substrate and overlapped with the pad area, wherein a first inclined angle formed by the second surface and the first side is an obtuse angle.
    Type: Application
    Filed: April 25, 2024
    Publication date: February 13, 2025
    Inventors: Je Won YOO, Dong Jo KIM, Hyun KIM, Seung Min LEE
  • Publication number: 20250057012
    Abstract: A display device including a first substrate including a display area and a non-display area surrounding the display area, a second substrate disposed on the first substrate, a display element layer disposed on the second substrate and overlapping the display area, a first encapsulation layer disposed on the display element layer, overlapping the non-display area, and including an inorganic material, and a second encapsulation layer disposed on the first encapsulation layer, including a concavo-convex structure, and including an inorganic material. The first substrate includes a first surface overlapping an edge portion of the first substrate and facing the second substrate, and a first inclined surface extended to the first surface. An inclination angle formed by the first surface and the first inclined surface is an obtuse angle, and the first inclined surface overlaps the second encapsulation layer in a direction perpendicular to the first substrate.
    Type: Application
    Filed: April 4, 2024
    Publication date: February 13, 2025
    Applicant: Samsung Display Co., LTD.
    Inventors: Je Won YOO, Chang Mok KIM, Dong Jo KIM, Hyun KIM, Seung Min LEE, Dan Bi CHOI
  • Publication number: 20250056981
    Abstract: A display device includes a first substrate including a first surface and a second surface, which are opposite to each other, where the first substrate includes a rigid material, a second substrate disposed on the first surface of the first substrate, where the second substrate includes a flexible material, and a plurality of light-emitting elements disposed on the second substrate, where the first substrate further include first side surfaces disposed between the first and second surfaces, and first inclined surfaces disposed between the first surface and the first side surfaces, where the first side surfaces and the first inclined surfaces are at edges of the first substrate in a bending area where the second substrate is bent, and the display device further includes a filler disposed between a bottom surface of the second substrate and the first side surfaces of the first substrate, in the bending area.
    Type: Application
    Filed: April 9, 2024
    Publication date: February 13, 2025
    Inventors: Seung Min LEE, Dong Jo KIM, Hyun KIM, Seong Geun WON, Je Won YOO, Dan Bi CHOI, Souk June HWANG
  • Publication number: 20250017059
    Abstract: A display device includes: a first substrate comprising a first surface and a second surface facing each other and having a rigid material; a second substrate on the first surface of the first substrate and having a flexible material; and a display layer on the second substrate and comprising at least one inorganic film and a plurality of light-emitting elements, wherein the first substrate, at an edge of a bending area where the second substrate is bent, further includes: a first side surface between the first surface and the second surface; and a first inclined surface between the first surface and the first side surface, and the at least one inorganic film does not overlap with the first inclined surface.
    Type: Application
    Filed: March 29, 2024
    Publication date: January 9, 2025
    Inventors: Hyun KIM, Seung Min LEE, Dong Jo KIM, Young Ji KIM, Je Won YOO
  • Publication number: 20250017076
    Abstract: A display device includes: a first substrate including: a display area; and a non-display area including a bending area and a pad area; a display element layer on the display area; a bending protective layer on the bending area; a flexible circuit board on the pad area; a circuit protective layer on the pad area, and completely covering the flexible circuit board; a first support member under the display area; and a second support member under the pad area, spaced from the first support member, and including: a first surface in contact with the first substrate; a second surface opposite to the first surface; a first side surface facing the first support member; and a second side surface. The second side surface includes a first inclined surface connected to the second surface, and the first inclined surface of the second support member overlaps with the circuit protective layer.
    Type: Application
    Filed: March 19, 2024
    Publication date: January 9, 2025
    Inventors: Hyun KIM, Dong Jo KIM, Seong Geun WON, Je Won YOO, Seung Min LEE, Dan Bi CHOI, Souk June HWANG
  • Publication number: 20240431193
    Abstract: Provided are display device and method of fabricating display device. A display device includes a first substrate including a rigid material, and including a first surface, a second surface opposite to the first surface, and a first side surface between the first surface and the second surface, a protective layer on the first surface, a second substrate including a flexible material on the protective layer, and an emission material layer including light-emitting elements on the second substrate.
    Type: Application
    Filed: March 18, 2024
    Publication date: December 26, 2024
    Inventors: Dan Bi CHOI, Dong Jo KIM, Hyun KIM, Seong Geun WON, Je Won YOO, Seung Min LEE, Souk June HWANG
  • Publication number: 20240431192
    Abstract: A display device includes: a first substrate comprising a first surface and a second surface facing each other and having a rigid material; a second substrate on the first surface of the first substrate and having a flexible material; and an emission material layer on the second substrate and comprising a plurality of light-emitting elements, wherein the first substrate further comprises: an opening exposing the second substrate; a first side surface at an edge adjacent to the opening and between the first surface and the second surface; and a first inclined surface between the first surface and the first side surface, wherein the display device further comprises: a first high-curvature area overlapping the opening; and a first low-curvature area and a second low-curvature area on one side and an opposite side of the first high-curvature area, respectively, and wherein the first high-curvature area overlaps with the emission material layer.
    Type: Application
    Filed: January 29, 2024
    Publication date: December 26, 2024
    Inventors: Seung Min LEE, Dong Jo KIM, Dan Bi CHOI
  • Publication number: 20240421374
    Abstract: An insulation-layer forming composition includes: a conjugated diene copolymer as a binder polymer; and a non-aqueous organic solvent as a dispersion solvent, the conjugate diene copolymer having a Tg of ?10° C. to 40° C. According to one embodiment of the present disclosure, a physical short circuit between the cathode and the anode due to the defects, such as separator shrinkage and electrode folding in the lithium secondary battery, can be prevented. Moreover, cathode coating and insulating liquid coating can be simultaneously performed, by forming, on a tab portion of the cathode, an insulating layer satisfying all of flexibility, insulating characteristics, and electrolyte resistance characteristics. A cathode including the insulation-layer forming composition, a method of forming the cathode, and a lithium secondary battery including the cathode are also provided.
    Type: Application
    Filed: April 4, 2023
    Publication date: December 19, 2024
    Applicant: LG Chem, Ltd.
    Inventors: Min Ah Kang, Chang Bum Ko, Doyun Kim, Dong Jo Ryu, Jungeun Woo, Seon Hee Han
  • Publication number: 20240413248
    Abstract: A thin film transistor according to an exemplary embodiment of the present invention includes an oxide semiconductor. A source electrode and a drain electrode face each other. The source electrode and the drain electrode are positioned at two opposite sides, respectively, of the oxide semiconductor. A low conductive region is positioned between the source electrode or the drain electrode and the oxide semiconductor. An insulating layer is positioned on the oxide semiconductor and the low conductive region. A gate electrode is positioned on the insulating layer. The insulating layer covers the oxide semiconductor and the low conductive region. A carrier concentration of the low conductive region is lower than a carrier concentration of the source electrode or the drain electrode.
    Type: Application
    Filed: August 19, 2024
    Publication date: December 12, 2024
    Inventors: Yong Su LEE, Yoon Ho KHANG, Dong Jo KIM, Hyun Jae NA, Sang Ho PARK, Se Hwan YU, Chong Sup CHANG, Dae Ho KIM, Jae Neung KIM, Myoung Geun CHA, Sang Gab KIM, Yu-Gwang JEONG
  • Publication number: 20240357886
    Abstract: A display device including a first substrate including a first area, a second area and a bending area between the first area and the second area; a display element layer disposed on the first area of the first substrate; multiple signal lines disposed on the bending area of the first substrate, the signal lines being spaced apart from one another in a first direction and electrically connected to the display element layer; and a bending protection layer disposed on the bending area of the first substrate and covering the signal lines, wherein the bending protection layer includes a first portion and a second portion, the first portion has an inclined surface, the second portion having an approximately flat surface, the second portion overlapping the signal lines including outermost signal lines, the first portion not overlapping the signal lines.
    Type: Application
    Filed: December 7, 2023
    Publication date: October 24, 2024
    Applicant: Samsung Display Co., LTD.
    Inventors: Seung Min LEE, Dong Jo KIM, Hyun KIM, Seong Geun WON, Je Won YOO, Dan Bi CHOI, Souk June HWANG