Patents by Inventor Jaebum Han

Jaebum Han 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: 20240097771
    Abstract: The disclosure relates to a method for processing a communication path in a portable communication device, which includes: identifying whether at least some of a plurality of active elements included in a communication circuit disposed between an antenna and a communication processor are in an abnormal state and, based on an abnormal state of a first active element supporting delivery of a signal of a first frequency band among the plurality of active elements being detected, controlling the portable communication device to deliver the signal of the first frequency band based on a second active element different form the first active element among the plurality of active element, and a portable communication device supporting the same.
    Type: Application
    Filed: August 24, 2023
    Publication date: March 21, 2024
    Inventors: Suho JIN, Jaebum BAE, Dongju LEE, Hyeontae CHO, Yonggil HAN, Bongsub KIM, Jinwan AN, Jonghoon WOO, Hyunsuk CHOI
  • Patent number: 11825704
    Abstract: An embodiment of a display apparatus includes a substrate, a buffer layer on the substrate, a thin film transistor including a semiconductor layer disposed on the buffer layer and including a silicon semiconductor, and a gate electrode insulated from the semiconductor layer, and an insulating layer covering the semiconductor layer, in which a concentration of fluorine at an interface between the semiconductor layer and the buffer layer is at least 10% of a concentration of the fluorine at the interface between the semiconductor layer and the insulating layer.
    Type: Grant
    Filed: May 26, 2021
    Date of Patent: November 21, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Moonsung Kim, Younggil Park, Jaebum Han, Sooim Jeong
  • Publication number: 20230217802
    Abstract: A display panel includes the following elements: a substrate including a first base layer, wherein the first base layer includes a transparent polyimide resin; a first pixel circuit and a second pixel circuit over the substrate, spaced from each other with the transmission area between the first pixel circuit and the second pixel circuit, and each including transistors and a storage capacitor; a first display element electrically connected to the first pixel circuit; and a second display element electrically connected to the second pixel circuit.
    Type: Application
    Filed: March 7, 2023
    Publication date: July 6, 2023
    Inventors: Jaebum Han, Younggil Park, Junghwa Park, Nari Ahn, Sooim Jeong
  • Patent number: 11600793
    Abstract: A display panel includes the following elements: a substrate including a first base layer, wherein the first base layer includes a transparent polyimide resin; a first pixel circuit and a second pixel circuit over the substrate, spaced from each other with the transmission area between the first pixel circuit and the second pixel circuit, and each including transistors and a storage capacitor; a first display element electrically connected to the first pixel circuit; and a second display element electrically connected to the second pixel circuit.
    Type: Grant
    Filed: December 28, 2020
    Date of Patent: March 7, 2023
    Inventors: Jaebum Han, Younggil Park, Junghwa Park, Nari Ahn, Sooim Jeong
  • Patent number: 11569269
    Abstract: A display apparatus is provided which may include a substrate including a display area and a non-display area adjacent to the display area, a first thin-film transistor disposed on the substrate and including a first semiconductor layer including an oxide semiconductor material, and a second thin-film transistor disposed on the substrate and including a second semiconductor layer including a silicon semiconductor material, wherein a surface roughness of the first semiconductor layer is increased by plasma treatment. A method of manufacturing the display apparatus is also provided.
    Type: Grant
    Filed: January 8, 2021
    Date of Patent: January 31, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jaebum Han, Bohwa Kim, Younggil Park, Junghwa Park, Nari Ahn, Sooim Jeong
  • Patent number: 11502111
    Abstract: A display apparatus includes a first silicon transistor including a first semiconductor layer including a silicon-based semiconductor and a first gate electrode; a first oxide transistor including a second semiconductor layer and a second gate electrode, the second semiconductor layer including an oxide-based semiconductor; an upper insulating layer on the first and second semiconductor layers; and a first connection electrode on the upper insulating layer, electrically connected to the first semiconductor layer through a first contact hole of the upper insulating layer, and electrically connected to the second semiconductor layer through a second contact hole of the upper insulating layer. The second semiconductor layer includes a channel region, a source region, and a drain region, and a first distance between the channel region of the second semiconductor layer and the first contact hole is about 2 ?m or greater.
    Type: Grant
    Filed: May 14, 2021
    Date of Patent: November 15, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sunwoo Lee, Kihyun Kim, Younggil Park, Seulgi Lee, Geunhyuk Choi, Jaebum Han
  • Publication number: 20220293705
    Abstract: A display device includes: a substrate; a first insulating layer disposed on the substrate and that includes an inorganic insulating material; an oxide semiconductor layer disposed on the first insulating layer; a second insulating layer disposed on the oxide semiconductor layer and that includes an inorganic insulating material; and a third insulating layer disposed on a gate electrode disposed on the second insulating layer and that includes an inorganic insulating material. The oxide semiconductor layer includes a first conductive region, a second conductive region, and a channel region located between the first conductive region and the second conductive region, and a value in the channel region of the oxide semiconductor layer of HC according to equation (1) is less than 30%.
    Type: Application
    Filed: May 31, 2022
    Publication date: September 15, 2022
    Inventors: Jaebum Han, Younggil Park, Junghwa Park, Nari Ahn, Sooim Jeong
  • Patent number: 11393888
    Abstract: A thin film transistor substrate includes a first semiconductor layer disposed on a substrate and having a first channel area, a first source area and a first drain area. A first gate electrode is disposed above the first semiconductor layer and overlaps the first channel area. A first electrode layer is disposed above the first gate electrode and electrically connects to at least one of the first source area and the first drain area. A second insulating layer is disposed between the first gate electrode and the first electrode layer. The second insulating layer includes an inorganic control layer and a first inorganic layer arranged on the inorganic control layer. The inorganic control layer has a lower density than a density of the first inorganic layer.
    Type: Grant
    Filed: June 11, 2020
    Date of Patent: July 19, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jaebum Han, Younggil Park, Junghwa Park, Nari Ahn, Sooim Jeong, Kinam Kim, Moonsung Kim
  • Patent number: 11387302
    Abstract: A display device includes: a substrate; a first insulating layer disposed on the substrate and that includes an inorganic insulating material; an oxide semiconductor layer disposed on the first insulating layer; a second insulating layer disposed on the oxide semiconductor layer and that includes an inorganic insulating material; and a third insulating layer disposed on a gate electrode disposed on the second insulating layer and that includes an inorganic insulating material. The oxide semiconductor layer includes a first conductive region, a second conductive region, and a channel region located between the first conductive region and the second conductive region, and a value in the channel region of the oxide semiconductor layer of HC according to equation (1) is less than 30%.
    Type: Grant
    Filed: April 1, 2020
    Date of Patent: July 12, 2022
    Assignee: Samsung Display Co. , Ltd.
    Inventors: Jaebum Han, Younggil Park, Junghwa Park, Nari Ahn, Sooim Jeong
  • Publication number: 20220181416
    Abstract: An embodiment of a display apparatus includes a substrate, a buffer layer on the substrate, a thin film transistor including a semiconductor layer disposed on the buffer layer and including a silicon semiconductor, and a gate electrode insulated from the semiconductor layer, and an insulating layer covering the semiconductor layer, in which a concentration of fluorine at an interface between the semiconductor layer and the buffer layer is at least 10% of a concentration of the fluorine at the interface between the semiconductor layer and the insulating layer.
    Type: Application
    Filed: May 26, 2021
    Publication date: June 9, 2022
    Inventors: Moonsung Kim, Younggil Park, Jaebum Han, Sooim Jeong
  • Publication number: 20220173186
    Abstract: Provided are a display apparatus with improved display quality and a method of manufacturing the same, the display apparatus including: a substrate including a first base layer, a second base layer arranged over the first base layer, and a first barrier layer disposed between the first base layer and the second base layer; a first thin-film transistor arranged over the substrate and including a first semiconductor layer and a first gate electrode, wherein the first barrier layer includes a first sub-layer and a second sub-layer disposed on the first sub-layer, the first sub-layer including an inorganic material and the second sub-layer including amorphous silicon and crystallized silicon.
    Type: Application
    Filed: July 22, 2021
    Publication date: June 2, 2022
    Inventors: Jaebum Han, Younggil Park, Moonsung Kim, Jaisun Kyoung, Kihyun Kim, Sooim Jeong
  • Patent number: 11315998
    Abstract: A display apparatus that includes a substrate, a first thin-film transistor and a second, thin-film transistor disposed on the substrate at different distances from a top surface of the substrate. A display device is electrically connected to the first thin-film transistor. The first thin-film transistor includes a first semiconductor layer in polycrystalline silicon and a first gate electrode that overlaps a channel region of the first semiconductor layer in a direction of a thickness of the substrate. The second thin-film transistor includes a second semiconductor layer including an oxide semiconductor. The first gate electrode has a stacked structure including a first layer and a second layer. The second layer includes titanium and the first layer includes a different material from the second layer.
    Type: Grant
    Filed: May 26, 2020
    Date of Patent: April 26, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jaebum Han, Younggil Park, Junghwa Park, Nari Ahn, Sooim Jeong, Kinam Kim, Moonsung Kim
  • Publication number: 20210384229
    Abstract: A display apparatus includes a first silicon transistor including a first semiconductor layer including a silicon-based semiconductor and a first gate electrode; a first oxide transistor including a second semiconductor layer and a second gate electrode, the second semiconductor layer including an oxide-based semiconductor; an upper insulating layer on the first and second semiconductor layers; and a first connection electrode on the upper insulating layer, electrically connected to the first semiconductor layer through a first contact hole of the upper insulating layer, and electrically connected to the second semiconductor layer through a second contact hole of the upper insulating layer. The second semiconductor layer includes a channel region, a source region, and a drain region, and a first distance between the channel region of the second semiconductor layer and the first contact hole is about 2 ?m or greater.
    Type: Application
    Filed: May 14, 2021
    Publication date: December 9, 2021
    Applicant: Samsung Display Co., Ltd.
    Inventors: Sunwoo LEE, Kihyun KIM, Younggil PARK, Seulgi LEE, Geunhyuk CHOI, Jaebum HAN
  • Publication number: 20210375950
    Abstract: A display apparatus is provided which may include a substrate including a display area and a non-display area adjacent to the display area, a first thin-film transistor disposed on the substrate and including a first semiconductor layer including an oxide semiconductor material, and a second thin-film transistor disposed on the substrate and including a second semiconductor layer including a silicon semiconductor material, wherein a surface roughness of the first semiconductor layer is increased by plasma treatment. A method of manufacturing the display apparatus is also provided.
    Type: Application
    Filed: January 8, 2021
    Publication date: December 2, 2021
    Applicant: Samsung Display Co., Ltd.
    Inventors: Jaebum HAN, Bohwa KIM, Younggil PARK, Junghwa PARK, Nari AHN, Sooim JEONG
  • Publication number: 20210305521
    Abstract: A display panel includes the following elements: a substrate including a first base layer, wherein the first base layer includes a transparent polyimide resin; a first pixel circuit and a second pixel circuit over the substrate, spaced from each other with the transmission area between the first pixel circuit and the second pixel circuit, and each including transistors and a storage capacitor; a first display element electrically connected to the first pixel circuit; and a second display element electrically connected to the second pixel circuit.
    Type: Application
    Filed: December 28, 2020
    Publication date: September 30, 2021
    Inventors: Jaebum Han, Younggil Park, Junghwa Park, Nari Ahn, Sooim Jeong
  • Publication number: 20210066424
    Abstract: A display device includes: a substrate; a first insulating layer disposed on the substrate and that includes an inorganic insulating material; an oxide semiconductor layer disposed on the first insulating layer; a second insulating layer disposed on the oxide semiconductor layer and that includes an inorganic insulating material; and a third insulating layer disposed on a gate electrode disposed on the second insulating layer and that includes an inorganic insulating material. The oxide semiconductor layer includes a first conductive region, a second conductive region, and a channel region located between the first conductive region and the second conductive region, and a value in the channel region of the oxide semiconductor layer of HC according to equation (1) is less than 30%.
    Type: Application
    Filed: April 1, 2020
    Publication date: March 4, 2021
    Inventors: Jaebum Han, Younggil Park, Junghwa Park, Nari Ahn, Sooim Jeong
  • Publication number: 20200395426
    Abstract: A thin film transistor substrate includes a first semiconductor layer disposed on substrate and having a first channel area, a first source area and a first drain area. A first gate electrode is disposed above the first semiconductor layer and overlaps the first channel area. A first electrode layer is disposed above the first gate electrode and electrically connects to at least one of the first source area and the first drain area. A second insulating layer is disposed between the first gate electrode and the first electrode layer. The second insulating layer includes an inorganic control layer and a first inorganic layer arranged on the inorganic control layer. The inorganic control layer has a lower density than a density of the first inorganic layer.
    Type: Application
    Filed: June 11, 2020
    Publication date: December 17, 2020
    Inventors: Jaebum HAN, Younggil PARK, Junghwa PARK, Nari AHN, Sooim JEONG, Kinam KIM, Moonsung KIM
  • Publication number: 20200395425
    Abstract: A display apparatus that includes a substrate, a first thin-film transistor and a second, thin-film transistor disposed on the substrate at different distances from a top surface of the substrate. A display device is electrically connected to the first thin-film transistor. The first thin-film transistor includes a first semiconductor layer in polycrystalline silicon and a first gate electrode that overlaps a channel region of the first semiconductor layer in a direction of a thickness of the substrate. The second thin-film transistor includes a second semiconductor layer including an oxide semiconductor. The first gate electrode has a stacked structure including a first layer and a second layer. The second layer includes titanium and the first layer includes a different material from the second layer.
    Type: Application
    Filed: May 26, 2020
    Publication date: December 17, 2020
    Inventors: Jaebum Han, Younggil Park, Junghwa Park, Nari Ahn, Sooim Jeong, Kinam Kim, Moonsung Kim