Patents by Inventor Woon-Hyun Choi

Woon-Hyun Choi 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).

  • DEPOSITION APPARATUS, METHOD OF MANUFACTURING ORGANIC LIGHT EMITTING DISPLAY APPARATUS, AND ORGANIC LIGHT EMITTING DISPLAY APPARATUS
    Publication number: 20150207108
    Abstract: A deposition apparatus for depositing a deposition material on a substrate in order to improve characteristics of a deposition layer includes: a deposition source facing the substrate and ejecting the deposition material; a patterning slit sheet including patterning slits for depositing the deposition material in a desired pattern and disposed to face the substrate; a frame coupled to the patterning slit sheet; and a stage bonded to the frame to support the frame, wherein a separation area is formed between the frame and the stage.
    Type: Application
    Filed: March 27, 2015
    Publication date: July 23, 2015
    Inventors: Woon-Hyun Choi, Kyung-Han Kim, Myong-Hwan Choi, Kyoung-Won Oh
  • Method of manufacturing organic light-emitting display apparatus
    Patent number: 9040330
    Abstract: A deposition apparatus includes (i) a sheet including a slit area, first and second dummy slit areas, and a binding area; and (ii) a frame. The slit area has a plurality of patterning slits that are extended along a first direction and arranged along a second direction crossing the first direction. The first and second dummy slit areas are outside the slit area along the second direction and along the opposite direction to the second direction respectively and have a plurality of dummy slits. The binding area surrounds the slit area and the first and second dummy slit areas. The frame is attached to the binding area of the sheet and shields at least some of the plurality of dummy slits of the first and second dummy slit areas.
    Type: Grant
    Filed: August 30, 2013
    Date of Patent: May 26, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Myong-Hwan Choi, Woon-Hyun Choi, Kyoung-Won Oh
  • Deposition apparatus, method of manufacturing organic light emitting display apparatus, and organic light emitting display apparatus
    Patent number: 8993360
    Abstract: A deposition apparatus for depositing a deposition material on a substrate in order to improve characteristics of a deposition layer includes: a deposition source facing the substrate and ejecting the deposition material; a patterning slit sheet including patterning slits for depositing the deposition material in a desired pattern and disposed to face the substrate; a frame coupled to the patterning slit sheet; and a stage bonded to the frame to support the frame, wherein a separation area is formed between the frame and the stage.
    Type: Grant
    Filed: July 25, 2013
    Date of Patent: March 31, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Woon-Hyun Choi, Kyung-Han Kim, Myong-Hwan Choi, Kyoung-Won Oh
  • PATTERNING SLIT SHEET, DEPOSITION APPARATUS INCLUDING THE SAME, METHOD OF MANUFACTURING ORGANIC LIGHT-EMITTING DISPLAY APPARATUS USING THE SAME, ORGANIC LIGHT-EMITTING DISPLAY APPARATUS MANUFACTURED BY USING THE METHOD
    Publication number: 20140312318
    Abstract: A deposition apparatus includes (i) a sheet including a slit area, first and second dummy slit areas, and a binding area; and (ii) a frame. The slit area has a plurality of patterning slits that are extended along a first direction and arranged along a second direction crossing the first direction. The first and second dummy slit areas are outside the slit area along the second direction and along the opposite direction to the second direction respectively and have a plurality of dummy slits. The binding area surrounds the slit area and the first and second dummy slit areas. The frame is attached to the binding area of the sheet and shields at least some of the plurality of dummy slits of the first and second dummy slit areas.
    Type: Application
    Filed: August 30, 2013
    Publication date: October 23, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Myong-Hwan Choi, Woon-Hyun Choi, Kyoung-Won Oh
  • DEPOSITION APPARATUS, METHOD OF MANUFACTURING ORGANIC LIGHT EMITTING DISPLAY APPARATUS, AND ORGANIC LIGHT EMITTING DISPLAY APPARATUS
    Publication number: 20140291620
    Abstract: A deposition apparatus for depositing a deposition material on a substrate in order to improve characteristics of a deposition layer includes: a deposition source facing the substrate and ejecting the deposition material; a patterning slit sheet including patterning slits for depositing the deposition material in a desired pattern and disposed to face the substrate; a frame coupled to the patterning slit sheet; and a stage bonded to the frame to support the frame, wherein a separation area is formed between the frame and the stage.
    Type: Application
    Filed: July 25, 2013
    Publication date: October 2, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Woon-Hyun Choi, Kyung-Han Kim, Myong-Hwan Choi, Kyoung-Won Oh