Patents by Inventor Kwangtae Yu

Kwangtae Yu 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: 20240295019
    Abstract: A hybrid mask stick and a mask frame assembly employing the same are provided. The mask frame assembly includes: a mask frame; and a mask stick assembly including a first mask stick that extends in a first direction, a second mask stick that extends in a second direction intersecting the first direction, and a plurality of third mask sticks that is coupled to ends of the first mask stick and the second mask stick and defines a plurality of deposition areas, wherein a thickness of the first mask stick is different from a thickness of the second mask stick, and a partial etching portion is arranged in a portion where the first mask stick and the second mask stick are coupled to each other.
    Type: Application
    Filed: February 21, 2024
    Publication date: September 5, 2024
    Inventors: Jaesoo Ha, Suhwan Lee, Sungho Seo, Kwangtae Yu
  • Patent number: 11970763
    Abstract: Provided are a hybrid-type mask stick and a mask frame assembly adopting the same. The mask frame assembly includes a mask frame; and a mask stick including a first mask stick extending in a first direction, a second mask stick extending in a second direction crossing the first direction, and a plurality of third mask sticks connected to the first mask stick and the second mask stick, the at least one first mask stick, the at least one second mask stick and the plurality of third mask sticks defining a plurality of deposition areas, wherein the first mask stick includes a first stick and a second stick arranged on the first stick, and at least one of the first stick and the second stick includes a partially-recessed portion in which the first mask stick is connected to the second mask stick.
    Type: Grant
    Filed: June 27, 2019
    Date of Patent: April 30, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Suhwan Lee, Jaesoo Ha, Kwangtae Yu, Jinbaek Choi, Sangwoo Pyo
  • Patent number: 11939657
    Abstract: A hybrid mask stick and a mask frame assembly employing the same are provided. The mask frame assembly includes: a mask frame; and a mask stick assembly including a first mask stick that extends in a first direction, a second mask stick that extends in a second direction intersecting the first direction, and a plurality of third mask sticks that is coupled to ends of the first mask stick and the second mask stick and defines a plurality of deposition areas, wherein a thickness of the first mask stick is different from a thickness of the second mask stick, and a partial etching portion is arranged in a portion where the first mask stick and the second mask stick are coupled to each other.
    Type: Grant
    Filed: June 17, 2019
    Date of Patent: March 26, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jaesoo Ha, Suhwan Lee, Sungho Seo, Kwangtae Yu
  • Patent number: 11538994
    Abstract: Provided is a mask assembly. The mask assembly includes a mask frame and a mask. The mask is coupled to the mask frame to distinguish first to third deposition areas from each other. Each of the first and third deposition areas has a first width greater than a reference width in a first direction and a second width less than the first width in a second direction. The second deposition area has a third width less than the first width in the first direction and a fourth width less than the reference width in the second direction.
    Type: Grant
    Filed: October 10, 2019
    Date of Patent: December 27, 2022
    Inventors: Jaesoo Ha, Suhwan Lee, Kwangtae Yu, Seungwook Chang
  • Publication number: 20200176681
    Abstract: Provided is a mask assembly. The mask assembly includes a mask frame and a mask. The mask is coupled to the mask frame to distinguish first to third deposition areas from each other. Each of the first and third deposition areas has a first width greater than a reference width in a first direction and a second width less than the first width in a second direction. The second deposition area has a third width less than the first width in the first direction and a fourth width less than the reference width in the second direction.
    Type: Application
    Filed: October 10, 2019
    Publication date: June 4, 2020
    Inventors: Jaesoo HA, Suhwan LEE, Kwangtae YU, Seungwook CHANG
  • Publication number: 20200123644
    Abstract: Provided are a hybrid-type mask stick and a mask frame assembly adopting the same. The mask frame assembly includes a mask frame; and a mask stick including a first mask stick extending in a first direction, a second mask stick extending in a second direction crossing the first direction, and a plurality of third mask sticks connected to the first mask stick and the second mask stick, the at least one first mask stick, the at least one second mask stick and the plurality of third mask sticks defining a plurality of deposition areas, wherein the first mask stick includes a first stick and a second stick arranged on the first stick, and at least one of the first stick and the second stick includes a partially-recessed portion in which the first mask stick is connected to the second mask stick.
    Type: Application
    Filed: June 27, 2019
    Publication date: April 23, 2020
    Inventors: Suhwan Lee, Jaesoo Ha, Kwangtae Yu, Jinbaek Choi, Sangwoo Pyo
  • Publication number: 20200083451
    Abstract: A hybrid mask stick and a mask frame assembly employing the same are provided. The mask frame assembly includes: a mask frame; and a mask stick assembly including a first mask stick that extends in a first direction, a second mask stick that extends in a second direction intersecting the first direction, and a plurality of third mask sticks that is coupled to ends of the first mask stick and the second mask stick and defines a plurality of deposition areas, wherein a thickness of the first mask stick is different from a thickness of the second mask stick, and a partial etching portion is arranged in a portion where the first mask stick and the second mask stick are coupled to each other.
    Type: Application
    Filed: June 17, 2019
    Publication date: March 12, 2020
    Inventors: Jaesoo Ha, Suhwan Lee, Sungho Seo, Kwangtae Yu