Patents by Inventor Kwang-Min Kim

Kwang-Min 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: 11556198
    Abstract: An input sensing unit includes a plurality of first electrodes which are arranged in a first direction and each of which extends in a second direction crossing the first direction, a plurality of row electrode each of which includes a second electrode and a third electrode, a plurality of first sensing lines respectively connected to the first electrodes, a plurality of second sensing lines respectively connected to the second electrodes, and a third sensing line connected to each of the third electrodes. Each of the row electrodes includes one side and the other side, which are opposed to each other in the first direction, and the one side is connected to one of one second sensing line and one third sensing line of the second sensing lines, and the other side is connected to the other of the second sensing lien and the third sensing line.
    Type: Grant
    Filed: November 22, 2021
    Date of Patent: January 17, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jisu Na, Kwang-Min Kim, Kiwook Kim, Yangwan Kim
  • Patent number: 11550437
    Abstract: A display device including a display panel and an input sensor disposed on the display panel and including signal line groups arranged in a wiring region, and first and second sensing electrodes disposed in a sensing region, each of the first and second sensing electrodes having one end electrically connected to a corresponding signal line, in which the second sensing electrodes have a greater length than the first sensing electrodes, the signal line groups include first and second signal line groups electrically connected to the first and second sensing electrodes, respectively, each of the first sensing electrodes includes first bridge patterns overlapping the second sensing electrodes and disposed on a different layer from the second sensing electrodes, and one of the first sensing electrodes or the second sensing electrodes are configured to receive a sinusoidal signal.
    Type: Grant
    Filed: August 26, 2019
    Date of Patent: January 10, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyunwoong Kim, Kwang-min Kim, Kiwook Kim, Yangwan Kim, Jisu Na
  • Publication number: 20220393188
    Abstract: Disclosed is a method for manufacturing a stainless steel for a polymer electrolyte membrane fuel cell separator, and more particularly, a method for manufacturing a stainless steel for a polymer electrolyte membrane fuel cell separator capable of obtaining low contact resistance and high corrosion resistance by effectively removing a non-conductive coating and forming a new coating. According to an embodiment, the disclosed method for manufacturing a stainless steel for a polymer electrolyte membrane fuel cell separator includes performing alternating current electrolysis by immersing, in a sulfuric acid solution, a stainless steel having a passivation coating formed on a surface thereof by cold rolling and bright annealing, wherein the alternating current electrolysis is performed by applying a current density of 10 to 30 A/dm2.
    Type: Application
    Filed: February 12, 2020
    Publication date: December 8, 2022
    Applicant: POSCO
    Inventors: Young Jun Kim, Bo-Sung Seo, Kwang Min Kim, Dong-Hoon Kim
  • Publication number: 20220359888
    Abstract: Provided are stainless steel for a separator of a polymer electrolyte membrane fuel cell, which exhibits enhanced hydrophilicity and enhanced corrosion resistance, and a method of manufacturing the same. In the stainless steel for a separator of a polymer electrolyte membrane fuel cell, which exhibits enhanced hydrophilicity and enhanced corrosion resistance, according to an embodiment of the present invention, a ratio of Cr hydroxide/Cr oxide included in a passivation film of the stainless steel ranges from 0.7 to 1.6, and the passivation film has a contact angle (?) of 70° or less. Thus, not only corrosion resistance may be enhanced by removing a non-conductive film formed on a surface of the stainless steel and forming a new conductive film thereon, but hydrophilicity may also be secured without additional surface treatment such as a separate coating or the like, and thus manufacturing costs may be reduced and productivity may be increased.
    Type: Application
    Filed: June 29, 2022
    Publication date: November 10, 2022
    Inventors: Jong Hee KIM, Kwang Min KIM, Ki Hoon JO, Bo Sung SEO
  • Publication number: 20220352276
    Abstract: An organic light-emitting display device includes a substrate having a display region and a peripheral region, a plurality of pixels on the substrate in the display region, a first wiring and a second wiring on the substrate in the peripheral region, An insulation layer on the first and second wirings, the insulation layer covering a top surface and a sidewall of each of the first and second wirings, and an encapsulation layer on the plurality of pixels and on the insulation layer.
    Type: Application
    Filed: July 18, 2022
    Publication date: November 3, 2022
    Applicant: Samsung Display Co., LTD.
    Inventors: Sun-Ja KWON, Won-Kyu KWAK, Kwang-Min KIM, Byoung-Sun KIM, Hye-Jin SHIN
  • Patent number: 11482173
    Abstract: Provided are a display device. The display device comprises: a display unit defined by a display area and a non-display area located outside the display area, and including pixels arranged in the display area, first sensing wirings electrically connected to the pixels, and auxiliary voltage wirings electrically separated from the pixels; and a sensing unit electrically connected to the first sensing wirings, wherein the first sensing wirings and the auxiliary voltage wirings extend in a first direction and are sequentially arranged along a second direction perpendicular to the first direction at first intervals, the first sensing wirings are spaced apart from each other along the second direction at second intervals greater than the first intervals and are electrically separated from each other, and the auxiliary voltage wirings are electrically connected to each other.
    Type: Grant
    Filed: December 3, 2021
    Date of Patent: October 25, 2022
    Inventors: Ki Wook Kim, Kwang Min Kim, Yang Wan Kim, Ji Su Na, Min Woo Byun
  • Publication number: 20220293691
    Abstract: A display device may include a display panel and an input sensor. Mesh lines of the input sensor may include first mesh lines extending in a first direction and second mesh lines extending in a second direction crossing the first direction. The first mesh lines and the second mesh lines may cross each other at a plurality of cross points. In a unit region of the sensing electrode, first cutting points may be defined in the first mesh lines and the second mesh lines, and second cutting points may be defined in the first mesh lines and the second mesh lines.
    Type: Application
    Filed: May 29, 2022
    Publication date: September 15, 2022
    Inventors: Joong-Soo MOON, Kwang-Min KIM, Yangwan KIM, Keunsoo LEE, Youngjin CHO
  • Publication number: 20220284859
    Abstract: A display device is provided. The display device may include a substrate, a plurality of pixels, a first data line, a second data line, a defect sensing line, a first input pad, and a static electricity discharge element. The substrate may include a display area and a peripheral area neighboring each other. The plurality of pixels may be positioned on the display area and may include a first pixel and a second pixel. The first data line may be electrically connected to the first pixel. The second data line may be electrically connected to the second pixel and may be electrically isolated from the first data line. The defect sensing line may be positioned on the peripheral area. The first input pad may be electrically connected to the defect sensing line. The static electricity discharge element may be electrically connected through the defect sensing line to the first input pad.
    Type: Application
    Filed: May 27, 2022
    Publication date: September 8, 2022
    Inventors: Kwang-Min KIM, Seung-Kyu LEE, Won Kyu KWAK
  • Publication number: 20220254286
    Abstract: A display device includes a substrate includes a display area having a plurality of pixels, a pad area including a plurality of input pads, and a circuit area positioned between the pad area and the display area; a crack sensor having a first end and a second end, the first end being connected to a first input pad of the plurality of input pads; a first shorting element extending through the pad area, the first shorting element being connected to the second end and extending to an edge of the substrate; a plurality of data lines connected to the plurality of pixels; and a crack sensing circuit including a first switching element having an input terminal connected to the first end and an output terminal connected to a first data line of the plurality of data lines, and a second switching element having an input terminal connected to the second end and an output terminal connected to a second data line of the plurality of data lines.
    Type: Application
    Filed: April 25, 2022
    Publication date: August 11, 2022
    Inventors: Kwang-Min KIM, Won Kyun KWAK, Seung-Kyu LEE
  • Patent number: 11411060
    Abstract: An organic light-emitting display device includes a substrate having a display region and a peripheral region, a plurality of pixels on the substrate in the display region, a first wiring and a second wiring on the substrate in the peripheral region, An insulation layer on the first and second wirings, the insulation layer covering a top surface and a sidewall of each of the first and second wirings, and an encapsulation layer on the plurality of pixels and on the insulation layer.
    Type: Grant
    Filed: June 17, 2020
    Date of Patent: August 9, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sun-Ja Kwon, Won-Kyu Kwak, Kwang-Min Kim, Byoung-Sun Kim, Hye-Jin Shin
  • Patent number: 11398631
    Abstract: Provided are stainless steel for a separator of a polymer electrolyte membrane fuel cell, which exhibits enhanced hydrophilicity and enhanced corrosion resistance, and a method of manufacturing the same. In the stainless steel for a separator of a polymer electrolyte membrane fuel cell, which exhibits enhanced hydrophilicity and enhanced corrosion resistance, according to an embodiment of the present invention, a ratio of Cr hydroxide/Cr oxide included in a passivation film of the stainless steel ranges from 0.5 to 1.7, and the passivation film has a contact angle (?) of 70° or less. Thus, not only corrosion resistance may be enhanced by removing a non-conductive film formed on a surface of the stainless steel and forming a new conductive film thereon, but hydrophilicity may also be secured without additional surface treatment such as a separate coating or the like, and thus manufacturing costs may be reduced and productivity may be increased.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: July 26, 2022
    Assignee: POSCO
    Inventors: Jong Hee Kim, Kwang Min Kim, Ki Hoon Jo, Bo Sung Seo
  • Publication number: 20220229508
    Abstract: An input sensing unit including a plurality of first electrodes, each of which including a plurality of first main patterns and a plurality of connection patterns disposed between the first main patterns to connect two first main patterns adjacent to each other, a plurality of second electrodes each of which including a plurality of second main patterns and a plurality of connection patterns disposed between the second main patterns to connect two second main patterns adjacent to each other, and a plurality of third electrodes receiving an electrical signal that is different from that received by the second electrode. Each of the third electrodes includes a plurality of third main patterns spaced apart from the second sensing patterns in a plan view and a plurality of third connection patterns disposed between the third main patterns to connect two third main patterns adjacent to each other and spaced apart from the first connection patterns in a plan view.
    Type: Application
    Filed: February 6, 2022
    Publication date: July 21, 2022
    Inventors: Kiwook Kim, Kwang-Min Kim, Yangwan Kim, Jisu Na
  • Patent number: 11348979
    Abstract: A display device may include a display panel and an input sensor. Mesh lines of the input sensor may include first mesh lines extending in a first direction and second mesh lines extending in a second direction crossing the first direction. The first mesh lines and the second mesh lines may cross each other at a plurality of cross points. In a unit region of the sensing electrode, first cutting points may be defined in the first mesh lines and the second mesh lines, and second cutting points may be defined in the first mesh lines and the second mesh lines.
    Type: Grant
    Filed: February 16, 2020
    Date of Patent: May 31, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Joong-Soo Moon, Kwang-Min Kim, Yangwan Kim, Keunsoo Lee, Youngjin Cho
  • Patent number: 11348527
    Abstract: A display device is provided. The display device may include a substrate, a plurality of pixels, a first data line, a second data line, a defect sensing line, a first input pad, and a static electricity discharge element. The substrate may include a display area and a peripheral area neighboring each other. The plurality of pixels may be positioned on the display area and may include a first pixel and a second pixel. The first data line may be electrically connected to the first pixel. The second data line may be electrically connected to the second pixel and may be electrically isolated from the first data line. The defect sensing line may be positioned on the peripheral area. The first input pad may be electrically connected to the defect sensing line. The static electricity discharge element may be electrically connected through the defect sensing line to the first input pad.
    Type: Grant
    Filed: June 8, 2020
    Date of Patent: May 31, 2022
    Inventors: Kwang-Min Kim, Seung-Kyu Lee, Won Kyu Kwak
  • Publication number: 20220155896
    Abstract: An input sensing unit includes a plurality of first electrodes which are arranged in a first direction and each of which extends in a second direction crossing the first direction, a plurality of row electrode each of which includes a second electrode and a third electrode, a plurality of first sensing lines respectively connected to the first electrodes, a plurality of second sensing lines respectively connected to the second electrodes, and a third sensing line connected to each of the third electrodes. Each of the row electrodes includes one side and the other side, which are opposed to each other in the first direction, and the one side is connected to one of one second sensing line and one third sensing line of the second sensing lines, and the other side is connected to the other of the second sensing lien and the third sensing line.
    Type: Application
    Filed: November 22, 2021
    Publication date: May 19, 2022
    Inventors: Jisu NA, Kwang-min KIM, Kiwook KIM, Yangwan KIM
  • Patent number: 11315454
    Abstract: A display device includes a substrate includes a display area having a plurality of pixels, a pad area including a plurality of input pads, and a circuit area positioned between the pad area and the display area; a crack sensor having a first end and a second end, the first end being connected to a first input pad of the plurality of input pads; a first shorting element extending through the pad area, the first shorting element being connected to the second end and extending to an edge of the substrate; a plurality of data lines connected to the plurality of pixels; and a crack sensing circuit including a first switching element having an input terminal connected to the first end and an output terminal connected to a first data line of the plurality of data lines, and a second switching element having an input terminal connected to the second end and an output terminal connected to a second data line of the plurality of data lines.
    Type: Grant
    Filed: December 7, 2020
    Date of Patent: April 26, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kwang-Min Kim, Won Kyun Kwak, Seung-Kyu Lee
  • Publication number: 20220093043
    Abstract: Provided are a display device. The display device comprises: a display unit defined by a display area and a non-display area located outside the display area, and including pixels arranged in the display area, first sensing wirings electrically connected to the pixels, and auxiliary voltage wirings electrically separated from the pixels; and a sensing unit electrically connected to the first sensing wirings, wherein the first sensing wirings and the auxiliary voltage wirings extend in a first direction and are sequentially arranged along a second direction perpendicular to the first direction at first intervals, the first sensing wirings are spaced apart from each other along the second direction at second intervals greater than the first intervals and are electrically separated from each other, and the auxiliary voltage wirings are electrically connected to each other.
    Type: Application
    Filed: December 3, 2021
    Publication date: March 24, 2022
    Inventors: Ki Wook KIM, Kwang Min KIM, Yang Wan KIM, Ji Su NA, Min Woo BYUN
  • Patent number: 11243624
    Abstract: An input sensing unit including a plurality of first electrodes, each of which including a plurality of first main patterns and a plurality of connection patterns disposed between the first main patterns to connect two first main patterns adjacent to each other, a plurality of second electrodes each of which including a plurality of second main patterns and a plurality of connection patterns disposed between the second main patterns to connect two second main patterns adjacent to each other, and a plurality of third electrodes receiving an electrical signal that is different from that received by the second electrode. Each of the third electrodes includes a plurality of third main patterns spaced apart from the second sensing patterns in a plan view and a plurality of third connection patterns disposed between the third main patterns to connect two third main patterns adjacent to each other and spaced apart from the first connection patterns in a plan view.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: February 8, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kiwook Kim, Kwang-Min Kim, Yangwan Kim, Jisu Na
  • Publication number: 20220010451
    Abstract: Disclosed is a ferritic stainless steel with improved corrosion resistance. The ferritic stainless steel with improved corrosion resistance according to an embodiment of the present disclosure includes, in percent (%) by weight of the entire composition, C: 0.02% or less (excluding 0), N: 0.02% or less (excluding 0), Si: 0.5% or less (excluding 0), Mn: 0.3% or less (excluding 0), Cr: 16 to 20%, Ni: 0.4% or less (excluding 0), the remainder of iron (Fe) and other inevitable impurities, and a Cr weight % content of a thickness region from a surface of a passivation film to 3 nm is 1.2 times or more than the Cr weight % content of the stainless base material.
    Type: Application
    Filed: November 1, 2019
    Publication date: January 13, 2022
    Inventors: Kwang Min Kim, Kkoch Nim Oh, Dong-Hoon Kim
  • Patent number: 11195462
    Abstract: Provided are a display device. The display device comprises: a display unit defined by a display area and a non-display area located outside the display area, and including pixels arranged in the display area, first sensing wirings electrically connected to the pixels, and auxiliary voltage wirings electrically separated from the pixels; and a sensing unit electrically connected to the first sensing wirings, wherein the first sensing wirings and the auxiliary voltage wirings extend in a first direction and are sequentially arranged along a second direction perpendicular to the first direction at first intervals, the first sensing wirings are spaced apart from each other along the second direction at second intervals greater than the first intervals and are electrically separated from each other, and the auxiliary voltage wirings are electrically connected to each other.
    Type: Grant
    Filed: February 24, 2021
    Date of Patent: December 7, 2021
    Inventors: Ki Wook Kim, Kwang Min Kim, Yang Wan Kim, Ji Su Na, Min Woo Byun