Patents by Inventor Woo-shik Lee

Woo-shik Lee 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: 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
  • 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
  • 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
  • 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
  • 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
  • Publication number: 20060098155
    Abstract: Disclosed is a liquid crystal display panel capable of being cut by a laser light. The liquid crystal display panel according to the present invention includes a substrate having a buffer layer between a conducting layer and an inner surface of the substrate, in which the buffer layer is disposed along a cutting line and spreads a crack and edges of the conducting layer is positioned in a region defined by the cutting line. Further, a method for manufacturing the liquid crystal display panel is disclosed, in which the liquid crystal display panel is machined by a laser cutter and a laser grinder.
    Type: Application
    Filed: December 13, 2005
    Publication date: May 11, 2006
    Inventors: Dae-ho Choo, Byeong-ill Kim, Sung-uk Jung, Woo-shik Lee, Bum-soo Kim
  • Publication number: 20060092116
    Abstract: A liquid crystal display is provided, which includes: a first signal line; a second signal line intersecting the first signal line; a thin film transistor connected to the first and the second signal lines; a first field generating electrode and a second field generating electrode facing each other; and a liquid crystal layer disposed between the first electrode and the second electrode, wherein one of the first and the second field generating electrodes is connected to the thin film transistor, and the first field generating electrode includes a plurality of first branch electrodes extending obliquely to the first and the second signal lines.
    Type: Application
    Filed: October 27, 2005
    Publication date: May 4, 2006
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Yoon-Sung Um, Jae-Jin Lyu, Woo-Shik Lee, Tae-Seok Jang, Jeong-Seon Kim, Valery Krasnoslobodtsev
  • Patent number: 7025829
    Abstract: Equipment for aligning liquid crystals is provided, comprising a first unit to form a first alignment layer and a second alignment layer on a first substrate group and a second substrate group, respectively; a second unit spaced apart from the first unit so as to receive the first and second substrate groups passed through the first unit; an alignment unit disposed between the first and second units, the alignment unit to provide a liquid crystal alignment part over the first alignment layer of the first substrate group while the first substrate group is transported through a first path from the first unit to the second unit; and a transportation unit disposed between the first and second units, the transportation unit to transport the second substrate group through a second path from the first unit to the second unit.
    Type: Grant
    Filed: June 30, 2004
    Date of Patent: April 11, 2006
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Woo-Shik Lee
  • 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
  • Publication number: 20050088610
    Abstract: Disclosed is a liquid crystal display panel capable of being cut by a laser light. The liquid crystal display panel according to the present invention includes a substrate having a buffer layer between a conducting layer and an inner surface of the substrate, in which the buffer layer is disposed along a cutting line and spreads a crack and edges of the conducting layer is position in a region defined by the cutting line. Further, a method for manufacturing the liquid crystal display panel is disclosed, in which the liquid crystal display panel is machined by a laser cutter and a laser grinder.
    Type: Application
    Filed: November 19, 2004
    Publication date: April 28, 2005
    Inventors: Dae-ho Choo, Byeong-ill Kim, Sung-uk Jung, Woo-shik Lee, Bum-soo Kim
  • Publication number: 20050030468
    Abstract: A liquid crystal device includes panels disposed opposite each other along a major surface, a liquid crystal layer interposed between the panels, a sealant disposed between the panels for confining the liquid crystal layer, a display area defined within the liquid crystal layer, a fan out area adjacent to the display area, and signal lines overlapped by the sealant in the fan out area where the distance between adjacent signal lines is one to ten times as large as the width of the signal lines; and a corresponding method for curing a liquid crystal device includes supporting the liquid crystal device, emitting light for curing the sealant, and redirecting the emitted light towards at least one surface of the liquid crystal device.
    Type: Application
    Filed: September 14, 2004
    Publication date: February 10, 2005
    Inventors: Sung-Wook Jung, Sang-Jun Lee, Woo-Shik Lee, Yong-Joon Kwon
  • Publication number: 20050007502
    Abstract: Equipment for aligning liquid crystals is provided, comprising a first unit to form a first alignment layer and a second alignment layer on a first substrate group and a second substrate group, respectively; a second unit spaced apart from the first unit so as to receive the first and second substrate groups passed through the first unit; an alignment unit disposed between the first and second units, the alignment unit to provide a liquid crystal alignment part over the first alignment layer of the first substrate group while the first substrate group is transported through a first path from the first unit to the second unit; and a transportation unit disposed between the first and second units, the transportation unit to transport the second substrate group through a second path from the first unit to the second unit.
    Type: Application
    Filed: June 30, 2004
    Publication date: January 13, 2005
    Inventor: Woo-Shik Lee
  • Publication number: 20040239868
    Abstract: A method of fabricating a display device includes the steps of providing spacers on one of two display panels, forming a sealant on one of the two panels, delivering the two panels into a panel assembling chamber, evacuating the chamber, sealing the room surrounded by the two panels and the sealant by closely contacting the two panels under vacuum atmosphere, and attaching the two panels by feeding air into the chamber to pressurize the panels by the pressure of the air.
    Type: Application
    Filed: July 8, 2004
    Publication date: December 2, 2004
    Inventors: Sung-Wook Jung, Sang-Jun Lee, Woo-Shik Lee, Yong-Joon Kwon
  • Patent number: 6822725
    Abstract: Disclosed is a liquid crystal display panel capable of being cut by a laser light. The liquid crystal display panel according to the present invention includes a substrate having a buffer layer between a conducting layer and an inner surface of the substrate, in which the buffer layer is disposed along a cutting line and spreads a crack and edges of the conducting layer is positioned in a region defined by the cutting line. Further, a method for manufacturing the liquid crystal display panel is disclosed, in which the liquid crystal display panel is machined by a laser cutter and a laser grinder.
    Type: Grant
    Filed: June 16, 2003
    Date of Patent: November 23, 2004
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dae-ho Choo, Byeong-ill Kim, Sung-uk Jung, Woo-shik Lee, Bum-soo Kim
  • Publication number: 20040080704
    Abstract: The alignment films formed at the two display panels are alignment-treated, and spacers are formed on one of the two panels. A first sealant with a liquid crystal injection hole is formed on the one of the two panels, and a second sealant is formed around the first sealant in the shape of a closed curve. Thereafter, the two panels are delivered into a panels assembling chamber, and aligned to each other. The chamber is evacuated to be in a vacuum state, and the room surrounded by the two panels and the second sealant is sealed through closely adhering the two panels to each other under the vacuum atmosphere. Air is fed into the chamber while breaking the vacuum state of the chamber except for the room surrounded by the two panels and the sealant, thereby attaching the two panels to each other. The first and the second sealants are hardened to thereby complete a liquid crystal panel assembly.
    Type: Application
    Filed: October 28, 2002
    Publication date: April 29, 2004
    Inventors: Sung-Wook Jung, Sang-Jun Lee, Woo-Shik Lee, Yong-Joon Kwon
  • Patent number: 6723952
    Abstract: The present invention disclose a laser cutter for cutting an object being cut such as a two glasses-attached panel for LCD using a laser beam. The laser cutter includes a laser unit for irradiating a laser beam with a specific wavelength along a marked cutting line of the object, a pre-scriber for forming a pre-cut groove at starting edge of the marked cutting line, and a cooling unit for cooling the cutting line which said laser beam has been irradiated.
    Type: Grant
    Filed: May 28, 2003
    Date of Patent: April 20, 2004
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dae-ho Choo, Byeong-ill Kim, Sung-uk Jung, Woo-shik Lee, Bum-soo Kim
  • Publication number: 20030209528
    Abstract: The present invention disclose a laser cutter for cutting an object being cut such as a two glasses-attached panel for LCD using a laser beam. The laser cutter includes a laser unit for irradiating a laser beam with a specific wavelength along a marked cutting line of the object, a pre-scriber for forming a pre-cut groove at starting edge of the marked cutting line, and a cooling unit for cooling the cutting line which said laser beam has been irradiated.
    Type: Application
    Filed: May 28, 2003
    Publication date: November 13, 2003
    Inventors: Dae-Ho Choo, Byeong-Ill Kim, Sung-Uk Jung, Woo-Shik Lee, Bum-Soo Kim
  • Publication number: 20030206266
    Abstract: Disclosed is a liquid crystal display panel capable of being cut by a laser light. The liquid crystal display panel according to the present invention includes a substrate having a buffer layer between a conducting layer and an inner surface of the substrate, in which the buffer layer is disposed along a cutting line and spreads a crack and edges of the conducting layer is positioned in a region defined by the cutting line. Further, a method for manufacturing the liquid crystal display panel is disclosed, in which the liquid crystal display panel is machined by a laser cutter and a laser grinder.
    Type: Application
    Filed: June 16, 2003
    Publication date: November 6, 2003
    Inventors: Dae-Ho Choo, Byeong-Ill Kim, Sung-Uk Jung, Woo-Shik Lee, Bum-Soo Kim
  • Patent number: 6590181
    Abstract: The present invention disclose a laser cutter for cutting an object being cut such as a two glasses-attached panel for LCD using a laser beam. The laser cutter includes a laser unit for irradiating a laser beam with a specific wavelength along a marked cutting line of the object, a pre-scriber for forming a pre-cut groove at starting edge of the marked cutting line, and a cooling unit for cooling the cutting line which said laser beam has been irradiated.
    Type: Grant
    Filed: February 28, 2002
    Date of Patent: July 8, 2003
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dae-ho Choo, Byeong-ill Kim, Sung-uk Jung, Woo-shik Lee, Bum-soo Kim
  • Patent number: 6580489
    Abstract: Disclosed is a liquid crystal display panel capable of being cut by a laser light. The liquid crystal display panel according to the present invention includes a substrate having a buffer layer between a conducting layer and an inner surface of the substrate, in which the buffer layer is disposed along a cutting line and spreads a crack and edges of the conducting layer is positioned in a region defined by the cutting line. Further, a method for manufacturing the liquid crystal display panel is disclosed, in which the liquid crystal display panel is machined by a laser cutter and a laser grinder.
    Type: Grant
    Filed: August 3, 2001
    Date of Patent: June 17, 2003
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dae-ho Choo, Byeong-ill Kim, Sung-uk Jung, Woo-shik Lee, Bum-soo Kim