Patents by Inventor Joung Won Woo

Joung Won Woo 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: 8724073
    Abstract: A method for manufacturing a liquid crystal display (LCD) device includes preparing first and second substrates, at least one of the first and second substrates being a transparent substrate; forming a plurality of the column spacers on the first substrate for maintaining a cell gap between the first and second substrates and a sidewall on the first substrate for sealing the periphery of the substrates; applying an adhesive solution including an adhesive diluted with an organic solvent onto the first substrate having the column spacers and the sidewall thereon; positioning the second substrate on the first substrate so that the first and second substrates face each other; adhering the column spacers to the second substrate by drying the organic solvent from the adhesive solution; and providing a liquid crystal material between the first and second substrates.
    Type: Grant
    Filed: July 15, 2013
    Date of Patent: May 13, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Joung Won Woo, Yuichi Momoi, Dong Cheon Shin
  • Publication number: 20130299067
    Abstract: A method for manufacturing a liquid crystal display (LCD) device includes preparing first and second substrates, at least one of the first and second substrates being a transparent substrate; forming a plurality of the column spacers on the first substrate for maintaining a cell gap between the first and second substrates and a sidewall on the first substrate for sealing the periphery of the substrates; applying an adhesive solution including an adhesive diluted with an organic solvent onto the first substrate having the column spacers and the sidewall thereon; positioning the second substrate on the first substrate so that the first and second substrates face each other; adhering the column spacers to the second substrate by drying the organic solvent from the adhesive solution; and providing a liquid crystal material between the first and second substrates.
    Type: Application
    Filed: July 15, 2013
    Publication date: November 14, 2013
    Inventors: Joung Won WOO, Yuichi MOMOI, Dong Cheon SHIN
  • Patent number: 8514355
    Abstract: A method for manufacturing a liquid crystal display (LCD) device includes preparing first and second substrates, at least one of the first and second substrates being a transparent substrate; forming a plurality of the column spacers on the first substrate for maintaining a cell gap between the first and second substrates and a sidewall on the first substrate for sealing the periphery of the substrates; applying an adhesive solution including an adhesive diluted with an organic solvent onto the first substrate having the column spacers and the sidewall thereon; positioning the second substrate on the first substrate so that the first and second substrates face each other; adhering the column spacers to the second substrate by drying the organic solvent from the adhesive solution; and providing a liquid crystal material between the first and second substrates.
    Type: Grant
    Filed: June 2, 2006
    Date of Patent: August 20, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Joung Won Woo, Yuichi Momoi, Dong Cheon Shin
  • Patent number: 8395739
    Abstract: An in-plane-switching mode liquid crystal display device is disclosed. The LCD device includes: first and second substrates opposite to each other; a liquid crystal layer interposed between the first and second substrates; a passivation film formed on the first substrate in which a thin film transistor is disposed; pixel and common electrodes arranged alternately with each other; and a first alignment film formed on the pixel and common electrodes. The liquid crystal layer and the passivation film are formed to have lower non-resistances than that of the first alignment film.
    Type: Grant
    Filed: December 16, 2009
    Date of Patent: March 12, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Han Shin Hwang, Joung Won Woo, Dong Guk Kim, Woo Keun Lee, Han Jin Ahn
  • Patent number: 8384864
    Abstract: A system for forming an alignment layer of a liquid crystal display device includes a rubbing apparatus to perform a rubbing process on the alignment layer on a substrate, a pre-treatment apparatus to thermally treat the substrate, and a light irradiation apparatus to irradiate light onto the substrate. The rubbing apparatus, the pre-treatment apparatus and the light irradiation apparatus are constructed in an in-line type.
    Type: Grant
    Filed: December 28, 2006
    Date of Patent: February 26, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Yong Sung Ham, Joung Won Woo, Hyun Ho Kim, Young Kwon Kang
  • Publication number: 20100165277
    Abstract: An in-plane-switching mode liquid crystal display device is disclosed. The LCD device includes: first and second substrates opposite to each other; a liquid crystal layer interposed between the first and second substrates; a passivation film formed on the first substrate in which a thin film transistor is disposed; pixel and common electrodes arranged alternately with each other; and a first alignment film formed on the pixel and common electrodes. The liquid crystal layer and the passivation film are formed to have lower non-resistances than that of the first alignment film.
    Type: Application
    Filed: December 16, 2009
    Publication date: July 1, 2010
    Inventors: Han Shin HWANG, Joung Won Woo, Dong Guk Kim, Woo Keun Lee, Han Jin Ahn
  • Patent number: 7522234
    Abstract: A liquid crystal display device includes a transparent insulating substrate, a gate line and a gate electrode on the transparent insulating substrate, a gate insulating film, an active layer, an ohmic contact layer, source and drain electrodes and a data line on the transparent insulating substrate, a passivation film formed on the transparent insulating substrate including the source and drain electrodes and the data line, a polarizing film formed on the passivation film, and a pixel electrode formed on at least the polarizing film.
    Type: Grant
    Filed: September 30, 2003
    Date of Patent: April 21, 2009
    Assignee: LG Display Co., Ltd.
    Inventors: Un Nyoung Sa, Joung Won Woo, Man Hoan Lee, Hyung Ki Hong
  • Patent number: 7443472
    Abstract: A liquid crystal display device includes a transparent insulating substrate, a gate line and a gate electrode on the transparent insulating substrate, a gate insulating film, an active layer, an ohmic contact layer, source and drain electrodes, and a data line on the transparent insulating substrate, a passivation film formed on the transparent insulating substrate including the source and drain electrodes and the data line, a compensation film formed on the passivation film, and a pixel electrode formed on at least the compensation film.
    Type: Grant
    Filed: September 30, 2003
    Date of Patent: October 28, 2008
    Assignee: LG DIsplay Co., Ltd.
    Inventors: Un Nyoung Sa, Joung Won Woo, Man Hoan Lee, Hyung Ki Hong
  • Patent number: 7202930
    Abstract: The present invention discloses an LCD panel and a method for fabricating the same. More specifically, the LCD panel includes first and second substrates, a photo-hardening sealant between the first and second substrates, a plurality of metal lines on the first substrate, wherein the metal lines are formed of a transparent conductive film at least at portions where the metal lines cross one another, and a liquid crystal layer between the first and second substrates. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.
    Type: Grant
    Filed: February 26, 2004
    Date of Patent: April 10, 2007
    Assignee: LG.Philips LCD Co., Ltd
    Inventors: Joung Won Woo, Woo Sup Shin
  • Patent number: 7145618
    Abstract: A method is disclosed for controlling a pretilt angle direction for a liquid crystal cell comprising the steps of first setting the magnitude of pretilt angle and a plurality of pretilt angle directions in an alignment layer. This first step is achieved by irradiating linearly the alignment layer with polarized or unpolarized UV light. One of the plurality of pretilt angle directions is then selected by exposing the alignment layer to UV light a second time.
    Type: Grant
    Filed: August 11, 2003
    Date of Patent: December 5, 2006
    Assignee: LG.Philips LCD Co., Ltd
    Inventors: Yuriy Reznikov, Oleg Yaroshchuk, Joung Won Woo, Yoo Jin Choi, Ki Hyuk Yoon, Mi Sook Nam, Jong Hyun Kim, Soon Bum Kwon
  • Patent number: 7126660
    Abstract: An In-Plane Switching mode liquid crystal display device includes a first substrate and a second substrate, a plurality of gate lines and data lines defining a plurality of pixels on the first substrate, a driving device disposed in each of the plurality of pixels, at least one pair of a first electrode and a second electrode arranged in each of the plurality of pixels to generate a horizontal electric field, a black matrix formed on the second substrate and having a slot around the plurality of pixels, and a liquid crystal layer formed between the first substrate and the second substrate.
    Type: Grant
    Filed: June 28, 2004
    Date of Patent: October 24, 2006
    Assignee: LG.Philips LCD Co., Ltd.
    Inventor: Joung-Won Woo
  • Patent number: 7075607
    Abstract: A liquid crystal cell having a first substrate with a rubbed layer provided thereon, a second substrate with a photo-aligned layer provided thereon, and a liquid crystal material provided between the substrates.
    Type: Grant
    Filed: June 26, 2001
    Date of Patent: July 11, 2006
    Inventors: Jong Hyun Kim, Ki Hyuk Yoon, Joung Won Woo, Mi Sook Nam, Yoo Jin Choi, Kyeong Jin Kim
  • Patent number: 7034914
    Abstract: The present invention discloses a method of forming a seal pattern of a liquid crystal display panel having a liquid crystal layer comprising the steps of: forming common electrodes over a first substrate; forming a plurality of conductive contact dots on the second substrate; forming a seal pattern along edges of the second substrate, said seal pattern having a plurality of triangular bent portions, the bent portions being bent toward inside of the second substrate; and forming a liquid crystal layer between first and second substrates.
    Type: Grant
    Filed: August 31, 2000
    Date of Patent: April 25, 2006
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Sang-Seok Lee, Joung-Won Woo
  • Patent number: 6879363
    Abstract: A method is disclosed for controlling a pretilt angle direction for a liquid crystal cell comprising the steps of first setting the magnitude of pretilt angle and a plurality of pretilt angle directions in an alignment layer. This first step is achieved by irradiating linearly the alignment layer with polarized or unpolarized UV light. One of the plurality of pretilt angle directions is then selected by exposing the alignment layer to UV light a second time.
    Type: Grant
    Filed: July 22, 2002
    Date of Patent: April 12, 2005
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Yuriy Reznikov, Oleg Yaroshchuk, Joung Won Woo, Yoo Jin Chol, Ki Hyuk Yoon, Mi Sook Nam, Jong Hyun Kim, Soon Bum Kwon
  • Publication number: 20040263753
    Abstract: An In-Plane Switching mode liquid crystal display device includes a first substrate and a second substrate, a plurality of gate lines and data lines defining a plurality of pixels on the first substrate, a driving device disposed in each of the plurality of pixels, at least one pair of a first electrode and a second electrode arranged in each of the plurality of pixels to generate a horizontal electric field, a black matrix formed on the second substrate and having a slot around the plurality of pixels, and a liquid crystal layer formed between the first substrate and the second substrate.
    Type: Application
    Filed: June 28, 2004
    Publication date: December 30, 2004
    Applicant: LG.Philips LCD Co., Ltd.
    Inventor: Joung-Won Woo
  • Publication number: 20040165120
    Abstract: The present invention discloses an LCD panel and a method for fabricating the same. More specifically, the LCD panel includes first and second substrates, a photo-hardening sealant between the first and second substrates, a plurality of metal lines on the first substrate, wherein the metal lines are formed of a transparent conductive film at least at portions where the metal lines cross one another, and a liquid crystal layer between the first and second substrates. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.
    Type: Application
    Filed: February 26, 2004
    Publication date: August 26, 2004
    Applicant: LG. PHILIPS LCD CO., LTD.
    Inventors: Joung Won Woo, Woo Sup Shin
  • Patent number: 6737289
    Abstract: The present invention discloses an LCD panel and a method for fabricating the same. More specifically, the LCD panel includes first and second substrates, a photo-hardening sealant between the first and second substrates, a plurality of metal lines on the first substrate, wherein the metal lines are formed of a transparent conductive film at least at portions where the metal lines cross one another, and a liquid crystal layer between the first and second substrates. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.
    Type: Grant
    Filed: March 1, 2002
    Date of Patent: May 18, 2004
    Assignee: LG. Philips LCD Co., Ltd.
    Inventors: Joung Won Woo, Woo Sup Shin
  • Publication number: 20040085500
    Abstract: A liquid crystal display device includes a transparent insulating substrate, a gate line and a gate electrode on the transparent insulating substrate, a gate insulating film, an active layer, an ohmic contact layer, source and drain electrodes, and a data line on the transparent insulating substrate, a passivation film formed on the transparent insulating substrate including the source and drain electrodes and the data line, a compensation film formed on the passivation film, and a pixel electrode formed on at least the compensation film.
    Type: Application
    Filed: September 30, 2003
    Publication date: May 6, 2004
    Applicant: LG. PHILIPS LCD CO., LTD.
    Inventors: Un Nyoung Sa, Joung Won Woo, Man Hoan Lee, Hyung Ki Hong
  • Publication number: 20040085493
    Abstract: A liquid crystal display device includes a transparent insulating substrate, a gate line and a gate electrode on the transparent insulating substrate, a gate insulating film, an active layer, an ohmic contact layer, source and drain electrodes and a data line on the transparent insulating substrate, a passivation film formed on the transparent insulating substrate including the source and drain electrodes and the data line, a polarizing film formed on the passivation film, and a pixel electrode formed on at least the polarizing film.
    Type: Application
    Filed: September 30, 2003
    Publication date: May 6, 2004
    Applicant: LG.PHILIPS LCD CO., LTD.
    Inventors: Un Nyoung Sa, Joung Won Woo, Man Hoan Lee, Hyung Ki Hong
  • Patent number: 6721025
    Abstract: A method for fabricating a liquid crystal cell and related device includes providing an alignment layer of a light sensitive material on a substrate; and exposing the alignment layer to unpolarized or partially polarized light, to provide pretilt for the molecules of the alignment layer.
    Type: Grant
    Filed: June 17, 2002
    Date of Patent: April 13, 2004
    Assignee: LG.Philips LCD Co., Ltd
    Inventors: Joung Won Woo, Kyeong Jin Kim, Soon Bum Kwon, Ki Hyuk Yoon, Young Seok Choi, Jong Hyun Kim, Jin Hee Jung