Patents by Inventor Beomjun Cheon

Beomjun Cheon 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: 11889742
    Abstract: A manufacturing apparatus of a display device includes: a first stage including a plurality of cell units, each including: a display unit including a display area, and a pad area; and a protective film unit attached to the display unit, and including a display film portion corresponding to the display area, and a pad film portion corresponding to the pad area; a second stage; and a transfer unit to transfer the cell units to the second stage from the first stage, and to peel off the pad film portion. The transfer unit includes: a body member; a plurality of pins along a first direction on a first surface of the body member; a plurality of suction pads on the first surface of the body member along a second direction; and a reel member on a second surface of the body member to supply a peeling tape to the second surface.
    Type: Grant
    Filed: September 30, 2021
    Date of Patent: January 30, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seungkuk Lee, Beomjun Cheon
  • Publication number: 20220140295
    Abstract: A manufacturing apparatus of a display device includes: a first stage including a plurality of cell units, each including: a display unit including a display area, and a pad area; and a protective film unit attached to the display unit, and including a display film portion corresponding to the display area, and a pad film portion corresponding to the pad area; a second stage; and a transfer unit to transfer the cell units to the second stage from the first stage, and to peel off the pad film portion. The transfer unit includes: a body member; a plurality of pins along a first direction on a first surface of the body member; a plurality of suction pads on the first surface of the body member along a second direction; and a reel member on a second surface of the body member to supply a peeling tape to the second surface.
    Type: Application
    Filed: September 30, 2021
    Publication date: May 5, 2022
    Inventors: SEUNGKUK LEE, BEOMJUN CHEON
  • Publication number: 20220115630
    Abstract: A method for manufacturing a display device is provided. A process of forming an inspection pattern, in which a protective film unit is partially removed in a thickness direction, in a pad area portion of the protective film unit, which corresponds to a pad area of a display unit, may be performed, and then, a process of delaminating the pad area portion of the protective film unit may be performed. A process of checking whether the inspection pattern exists may be performed to check whether the delamination has succeeded, and, at the same time, a process of measuring distances from an alignment mark to each of a long side and a short side of the display unit may be performed.
    Type: Application
    Filed: December 17, 2021
    Publication date: April 14, 2022
    Inventors: Beomjun Cheon, Kyungsik Kim, Yun-seok Eo, Sang-geun Lee, Seungkuk Lee, Sehee Lim, Jinsoo Choi
  • Patent number: 11258052
    Abstract: A method of manufacturing an organic light emitting display device includes forming a plurality of display structures on a lower substrate, forming a top protection film including a plurality of top opening patterns on the lower substrate and the display structures such that the top opening patterns do not overlap the display structures, cutting the lower substrate between two adjacent display structures among the plurality of display structures along a first cutting line that is located at at least a portion of the top opening patterns, and separating the lower substrate to form a plurality of display panels each including the display structure and a portion of the lower substrate.
    Type: Grant
    Filed: December 11, 2019
    Date of Patent: February 22, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seung Kuk Lee, Beomjun Cheon
  • Patent number: 11205768
    Abstract: A method for manufacturing a display device is provided. A process of forming an inspection pattern, in which a protective film unit is partially removed in a thickness direction, in a pad area portion of the protective film unit, which corresponds to a pad area of a display unit, may be performed, and then, a process of delaminating the pad area portion of the protective film unit may be performed. A process of checking whether the inspection pattern exists may be performed to check whether the delamination has succeeded, and, at the same time, a process of measuring distances from an alignment mark to each of a long side and a short side of the display unit may be performed.
    Type: Grant
    Filed: March 19, 2020
    Date of Patent: December 21, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Beomjun Cheon, Kyungsik Kim, Yun-seok Eo, Sang-geun Lee, Seungkuk Lee, Sehee Lim, Jinsoo Choi
  • Patent number: 11067856
    Abstract: A display apparatus comprises a first substrate comprising a first external surface and a first internal surface; a second substrate having a second external surface and a second internal surface facing the first internal surface of the first substrate; and a display unit disposed between the first and second substrates and comprising an array of pixels. The first substrate comprises a first side connecting the first external surface and the first internal surface. In a cross section perpendicular to the first external surface, the first side comprises a first straight region and a first curved region located between the straight region and the first internal surface. The second substrate comprises a second side connecting the first external surface and the first internal surface. The second side comprises a second straight region and a second curved region located between the straight region and the second internal surface.
    Type: Grant
    Filed: May 1, 2020
    Date of Patent: July 20, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyoengki Kim, Sangwook Sin, Jaeyoung Shin, Seungjoon Yoo, Jaeman Lee, Hyunsoo Lee, Beomjun Cheon, Gwangjoon Hong
  • Publication number: 20200257148
    Abstract: A display apparatus comprises a first substrate comprising a first external surface and a first internal surface; a second substrate having a second external surface and a second internal surface facing the first internal surface of the first substrate; and a display unit disposed between the first and second substrates and comprising an array of pixels. The first substrate comprises a first side connecting the first external surface and the first internal surface. In a cross section perpendicular to the first external surface, the first side comprises a first straight region and a first curved region located between the straight region and the first internal surface. The second substrate comprises a second side connecting the first external surface and the first internal surface. The second side comprises a second straight region and a second curved region located between the straight region and the second internal surface.
    Type: Application
    Filed: May 1, 2020
    Publication date: August 13, 2020
    Inventors: Hyoengki Kim, Sangwook Sin, Jaeyoung Shin, Seungjoon Yoo, Jaeman Lee, Hyunsoo Lee, Beomjun Cheon, Gwangjoon Hong
  • Publication number: 20200220117
    Abstract: A method for manufacturing a display device is provided. A process of forming an inspection pattern, in which a protective film unit is partially removed in a thickness direction, in a pad area portion of the protective film unit, which corresponds to a pad area of a display unit, may be performed, and then, a process of delaminating the pad area portion of the protective film unit may be performed. A process of checking whether the inspection pattern exists may be performed to check whether the delamination has succeeded, and, at the same time, a process of measuring distances from an alignment mark to each of a long side and a short side of the display unit may be performed.
    Type: Application
    Filed: March 19, 2020
    Publication date: July 9, 2020
    Inventors: Beomjun Cheon, Kyungsik Kim, Yun-seok Eo, Sang-geun Lee, Seungkuk Lee, Sehee Lim, Jinsoo Choi
  • Publication number: 20200194734
    Abstract: A method of manufacturing an organic light emitting display device includes forming a plurality of display structures on a lower substrate, forming a top protection film including a plurality of top opening patterns on the lower substrate and the display structures such that the top opening patterns do not overlap the display structures, cutting the lower substrate between two adjacent display structures among the plurality of display structures along a first cutting line that is located at at least a portion of the top opening patterns, and separating the lower substrate to form a plurality of display panels each including the display structure and a portion of the lower substrate.
    Type: Application
    Filed: December 11, 2019
    Publication date: June 18, 2020
    Inventors: Seung Kuk LEE, Beomjun CHEON
  • Patent number: 10678098
    Abstract: A display apparatus comprises a first substrate comprising a first external surface and a first internal surface; a second substrate having a second external surface and a second internal surface facing the first internal surface of the first substrate; and a display unit disposed between the first and second substrates and comprising an array of pixels. The first substrate comprises a first side connecting the first external surface and the first internal surface. In a cross section perpendicular to the first external surface, the first side comprises a first straight region and a first curved region located between the first straight region and the first internal surface. The second substrate comprises a second side connecting the second external surface and the second internal surface. The second side comprises a second straight region and a second curved region located between the second straight region and the second internal surface.
    Type: Grant
    Filed: January 21, 2016
    Date of Patent: June 9, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyoengki Kim, Sangwook Sin, Jaeyoung Shin, Seungjoon Yoo, Jaeman Lee, Hyunsoo Lee, Beomjun Cheon, Gwangjoon Hong
  • Patent number: 10608209
    Abstract: A method for manufacturing a display device is provided. A process of forming an inspection pattern, in which a protective film unit is partially removed in a thickness direction, in a pad area portion of the protective film unit, which corresponds to a pad area of a display unit, may be performed, and then, a process of delaminating the pad area portion of the protective film unit may be performed. A process of checking whether the inspection pattern exists may be performed to check whether the delamination has succeeded, and, at the same time, a process of measuring distances from an alignment mark to each of a long side and a short side of the display unit may be performed.
    Type: Grant
    Filed: May 7, 2018
    Date of Patent: March 31, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Beomjun Cheon, Kyungsik Kim, Yun-seok Eo, Sang-geun Lee, Seungkuk Lee, Sehee Lim, Jinsoo Choi
  • Publication number: 20190088909
    Abstract: A method for manufacturing a display device is provided. A process of forming an inspection pattern, in which a protective film unit is partially removed in a thickness direction, in a pad area portion of the protective film unit, which corresponds to a pad area of a display unit, may be performed, and then, a process of delaminating the pad area portion of the protective film unit may be performed. A process of checking whether the inspection pattern exists may be performed to check whether the delamination has succeeded, and, at the same time, a process of measuring distances from an alignment mark to each of a long side and a short side of the display unit may be performed.
    Type: Application
    Filed: May 7, 2018
    Publication date: March 21, 2019
    Inventors: Beomjun Cheon, Kyungsik Kim, Yun-seok Eo, Sang-geun Lee, Seungkuk Lee, Sehee Lim, Jinsoo Choi
  • Publication number: 20160307922
    Abstract: A display apparatus comprises a first substrate comprising a first external surface and a first internal surface; a second substrate having a second external surface and a second internal surface facing the first internal surface of the first substrate; and a display unit disposed between the first and second substrates and comprising an array of pixels. The first substrate comprises a first side connecting the first external surface and the first internal surface. In a cross section perpendicular to the first external surface, the first side comprises a first straight region and a first curved region located between the straight region and the first internal surface. The second substrate comprises a second side connecting the first external surface and the first internal surface. The second side comprises a second straight region and a second curved region located between the straight region and the second internal surface.
    Type: Application
    Filed: January 21, 2016
    Publication date: October 20, 2016
    Inventors: Hyoengki Kim, Sangwook Sin, Jaeyoung Shin, Seungjoon Yoo, Jaeman Lee, Hyunsoo Lee, Beomjun Cheon, Gwangjoon Hong