Patents by Inventor Gi-Chun Yoo

Gi-Chun Yoo 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).

  • Substrate, liquid crystal display device, and method of manufacturing the same
    Patent number: 7486372
    Abstract: A liquid crystal display apparatus includes first and second substrates, a fence, a liquid crystal layer and a plurality of spacers. The first substrate includes a display region for displaying an image. The second substrate faces the first substrate. The fence is disposed between the first substrate and the second substrate. The fence surrounds the display. The spacers maintain the distance between the first and second substrates. The spacers have a gradually increasing compression ratio in a direction from a center of the display region to an edge of the display region. The liquid crystal display apparatus maintains a uniform cell gap, even though a compressive stress of a center portion of the liquid crystal display apparatus is different with a compressive stress of an edge portion of the liquid crystal display apparatus. Therefore, display quality is enhanced.
    Type: Grant
    Filed: June 20, 2007
    Date of Patent: February 3, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Woo-Shik Lee, Gi-Chun Yoo, Baek-Kyun Jeon
  • Method of manufacturing a liquid crystal display device comprising forming a plurality of spacers having compression ratios gradually increasing as advancing from a center to left and right edges of display region
    Patent number: 7349058
    Abstract: A liquid crystal display apparatus includes first and second substrates, a fence, a liquid crystal layer and a plurality of spacers. The first substrate includes a display region for displaying an image. The second substrate faces the first substrate. The fence is disposed between the first substrate and the second substrate. The fence surrounds the display. The spacers maintain the distance between the first and second substrates. The spacers have a gradually increasing compression ratio in a direction from a center of the display region to an edge of the display region. The liquid crystal display apparatus maintains a uniform cell gap, even though a compressive stress of a center portion of the liquid crystal display apparatus is different with a compressive stress of an edge portion of the liquid crystal display apparatus. Therefore, display quality is enhanced.
    Type: Grant
    Filed: June 20, 2007
    Date of Patent: March 25, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Woo-Shik Lee, Gi-Chun Yoo, Baek-Kyun Jeon
  • SUBSTRATE, LIQUID CRYSTAL DISPLAY DEVICE, AND METHOD OF MANUFACTURING THE SAME
    Publication number: 20070258034
    Abstract: A liquid crystal display apparatus includes first and second substrates, a fence, a liquid crystal layer and a plurality of spacers. The first substrate includes a display region for displaying an image. The second substrate faces the first substrate. The fence is disposed between the first substrate and the second substrate. The fence surrounds the display. The spacers maintain the distance between the first and second substrates. The spacers have a gradually increasing compression ratio in a direction from a center of the display region to an edge of the display region. The liquid crystal display apparatus maintains a uniform cell gap, even though a compressive stress of a center portion of the liquid crystal display apparatus is different with a compressive stress of an edge portion of the liquid crystal display apparatus. Therefore, display quality is enhanced.
    Type: Application
    Filed: June 20, 2007
    Publication date: November 8, 2007
    Inventors: Woo-Shik Lee, Gi-Chun Yoo, Baek-Kyun Jeon
  • SUBSTRATE, LIQUID CRYSTAL DISPLAY DEVICE, AND METHOD OF MANUFACTURING THE SAME
    Publication number: 20070242210
    Abstract: A liquid crystal display apparatus includes first and second substrates, a fence, a liquid crystal layer and a plurality of spacers. The first substrate includes a display region for displaying an image. The second substrate faces the first substrate. The fence is disposed between the first substrate and the second substrate. The fence surrounds the display. The spacers maintain the distance between the first and second substrates. The spacers have a gradually increasing compression ratio in a direction from a center of the display region to an edge of the display region. The liquid crystal display apparatus maintains a uniform cell gap, even though a compressive stress of a center portion of the liquid crystal display apparatus is different with a compressive stress of an edge portion of the liquid crystal display apparatus. Therefore, display quality is enhanced.
    Type: Application
    Filed: June 20, 2007
    Publication date: October 18, 2007
    Inventors: Woo-Shik Lee, Gi-Chun Yoo, Baek-Kyun Jeon
  • Liquid crystal display device comprising a plurality of spacers having compression ratios gradually increasing as advancing from a center to left and right edges of display region
    Patent number: 7253868
    Abstract: A liquid crystal display apparatus includes first and second substrates, a fence, a liquid crystal layer and a plurality of spacers. The first substrate includes a display region for displaying an image. The second substrate faces the first substrate. The fence is disposed between the first substrate and the second substrate. The fence surrounds the display. The spacers maintain the distance between the first and second substrates. The spacers have a gradually increasing compression ratio in a direction from a center of the display region to an edge of the display region. The liquid crystal display apparatus maintains a uniform cell gap, even though a compressive stress of a center portion of the liquid crystal display apparatus is different with a compressive stress of an edge portion of the liquid crystal display apparatus. Therefore, display quality is enhanced.
    Type: Grant
    Filed: August 20, 2003
    Date of Patent: August 7, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Woo-Shik Lee, Gi-Chun Yoo, Baek-Kyun Jeon
  • Substrate, liquid crystal display device, and method of manufacturing the same
    Publication number: 20050099577
    Abstract: A liquid crystal display apparatus includes first and second substrates, a fence, a liquid crystal layer and a plurality of spacers. The first substrate includes a display region for displaying an image. The second substrate faces the first substrate. The fence is disposed between the first substrate and the second substrate. The fence surrounds the display. The spacers maintain the distance between the first and second substrates. The spacers have a gradually increasing compression ratio in a direction from a center of the display region to an edge of the display region. The liquid crystal display apparatus maintains a uniform cell gap, even though a compressive stress of a center portion of the liquid crystal display apparatus is different with a compressive stress of an edge portion of the liquid crystal display apparatus. Therefore, display quality is enhanced.
    Type: Application
    Filed: August 20, 2003
    Publication date: May 12, 2005
    Inventors: Woo-Shik Lee, Gi-Chun Yoo, Baek-Kyun Jeon