Patents by Inventor Seung-Ryull Park

Seung-Ryull Park 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: 8031279
    Abstract: Disclosed is an in-plane switching (IPS) mode liquid crystal display (LCD) device having an increased aperture ratio by overlapping a storage capacitor on a lower end of an electrode. The (IPS) mode liquid crystal display device (LCD) device includes first and second substrates; a gate line and a data line arranged horizontally and vertically to define a plurality of pixel regions on the first substrate; a switching device, having a gate electrode, a semiconductor layer and source and drain electrodes, at a crossing of the gate line and the data line; a passivation film on an entire surface of the first substrate including the switching device; a common electrode and a pixel electrode alternately disposed at an upper portion of the passivation film and generating an in-plane electric field, wherein at least one of the common and pixel electrodes has a first storage capacitor at its lower end; and a liquid crystal layer between the first and second substrates.
    Type: Grant
    Filed: March 16, 2009
    Date of Patent: October 4, 2011
    Assignee: LG Display Co., Ltd.
    Inventors: Seung Ryull Park, Dong Guk Kim
  • Publication number: 20110136277
    Abstract: Disclosed is a method of fabricating a LCD device that includes forming sacrifice layer patterns in a pixel region while forming a gate line, a first storage electrode, and a gate pad on a substrate; sequentially forming a gate insulation film, an amorphous silicon film, an impurity-doped amorphous silicon film, and a source/drain metal film on a substrate, forming a transparent conductive material on the substrate covered with a protection and then patterning the transparent conductive material to form a second storage electrode overlapping the first storage electrode and an electrode pattern having a part overlapping an area of one side edge of the sacrifice layer patterns and the other part formed on the substrate; and simultaneously forming a common electrode and a pixel electrode in the pixel region by performing a lift-off process to remove the sacrifice layer patterns on the substrate where the electrode pattern is formed.
    Type: Application
    Filed: August 3, 2010
    Publication date: June 9, 2011
    Inventors: Seung Ryull PARK, Kyung Mo Son
  • Publication number: 20100233834
    Abstract: A liquid crystal display device includes opposing substrates. One of the substrates has a thin film transistor and a color filter formed thereon. A spacer formed between the substrates maintains a cell gap. A light shielding layer is formed at a lower portion of the spacer and overlaps the thin film transistor. The light shielding layer has a pattern substantially identical to the spacer. The light shielding layer and the spacer are simultaneously formed using the same photolithographic process steps.
    Type: Application
    Filed: May 28, 2010
    Publication date: September 16, 2010
    Applicant: LG Display Co., LTd.
    Inventor: Seung Ryull Park
  • Patent number: 7796204
    Abstract: An array substrate device includes a gate line formed on a substrate extending along a first direction having a gate electrode, a data line formed on the substrate extending along a second direction having a data pad disposed apart from a first end of the data line, the data and gate lines defining a pixel region, a gate pad formed on the substrate disposed apart from a first end of the gate line, a thin film transistor formed at a crossing region of the gate and data lines and including the gate electrode, a semiconductor layer, a source electrode, and a drain electrode, a black matrix overlapping the thin film transistor, the gate line, and the data line except for a first portion of the drain electrode, a first pixel electrode at the pixel region contacting the first portion of the drain electrode and the substrate, a color filter on the first pixel electrode at the pixel region, and a second pixel electrode on the color filter contacting the first pixel electrode.
    Type: Grant
    Filed: June 11, 2008
    Date of Patent: September 14, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Youn-Gyoung Chang, Seung-Ryull Park, Woong-Kwon Kim, Jong-Hwae Lee
  • Patent number: 7773177
    Abstract: Disclosed is a black matrix for a liquid crystal display device (LCD) having an impedance about equal to or more than 105?, a specific resistance about equal to or more than 1011 ?cm, and a relative dielectric constant about equal to or less than 20 at a driving frequency of about 1 kHz to 100 kHz. The black matrix as disclosed has dielectric properties that minimize parasitic capacitance between the black matrix and the circuitry of the LCD, thereby preventing a signal delay in charging pixel electrodes that degrades the LCD image.
    Type: Grant
    Filed: June 28, 2005
    Date of Patent: August 10, 2010
    Assignee: LG Display Co., Ltd.
    Inventor: Seung-Ryull Park
  • Patent number: 7750999
    Abstract: A liquid crystal display device includes opposing substrates. One of the substrates has a thin film transistor and a color filter formed thereon. A spacer formed between the substrates maintains a cell gap. A light shielding layer is formed at a lower portion of the spacer and overlaps the thin film transistor. The light shielding layer has a pattern substantially identical to the spacer. The light shielding layer and the spacer are simultaneously formed using the same photolithographic process steps.
    Type: Grant
    Filed: December 29, 2004
    Date of Patent: July 6, 2010
    Assignee: LG. Display Co., Ltd.
    Inventor: Seung Ryull Park
  • Publication number: 20100151606
    Abstract: An array substrate device having a color filter-on thin film transistor (COT) structure for a liquid crystal display device includes a gate line formed on a substrate along a transverse direction, the gate line including a gate pad at one end thereof, a first insulating layer formed on the substrate to cover the gate line, the first insulating layer exposing a first portion of the gate pad, a data line formed over the first insulating layer along a longitudinal direction on the substrate, the data line defining a pixel region with the gate line and including a data pad at one end thereof, a thin film transistor formed at a crossing region of the gate and data lines, the thin film transistor including a gate electrode, a semiconductor layer, a source electrode, and a drain electrode, a black matrix overlapping the thin film transistor, the gate line, and the data line except a second portion of the drain electrode, a second insulating layer formed over an entire surface of the substrate to cover the black matr
    Type: Application
    Filed: December 3, 2009
    Publication date: June 17, 2010
    Inventors: Woong-Kwon Kim, Youn-Gyoung Chang, Seung-Ryull Park
  • Patent number: 7679693
    Abstract: Provided is an LCD having a liquid crystal panel including an active region serving as a display region and an outer region serving as a non-display region. The LCD includes a first substrate including an array unit and a color filter formed in the active region, an ESD (electrostatic discharge) circuit formed in the outer region, a pattern spacer formed on the ESD, a second substrate facing the first substrate, and a sealant for attaching the first and second substrates together.
    Type: Grant
    Filed: November 4, 2008
    Date of Patent: March 16, 2010
    Assignee: LG Display Co., Ltd.
    Inventor: Seung Ryull Park
  • Patent number: 7646445
    Abstract: An array substrate device having a color filter-on-thin film transistor (COT) structure for a liquid crystal display device includes a gate line formed on a substrate along a transverse direction, the gate line including a gate pad at one end thereof, a first insulating layer formed on the substrate to cover the gate line, the first insulating layer exposing a first portion of the gate pad, a data line formed over the first insulating layer along a longitudinal direction on the substrate, the data line defining a pixel region with the gate line and including a data pad at one end thereof, a thin film transistor formed at a crossing region of the gate and data lines, the thin film transistor including a gate electrode, a semiconductor layer, a source electrode, and a drain electrode, a black matrix overlapping the thin film transistor, the gate line, and the data line except a second portion of the drain electrode, a second insulating layer formed over an entire surface of the substrate to cover the black matr
    Type: Grant
    Filed: September 29, 2006
    Date of Patent: January 12, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Woong-Kwon Kim, Youn-Gyoung Chang, Seung-Ryull Park
  • Patent number: 7626658
    Abstract: A liquid crystal display device includes: upper and lower substrates facing each other, an active region and a non-active region being defined therein; a liquid crystal layer interposed between the upper substrate and the lower substrate; a black matrix formed in the non-active region of the upper or lower substrate; and a color filter overlapping the black matrix formed in the non-active region. The color filter is formed of one of red, green and blue color filters having a low transmittance with respect to a specific wavelength of light so as to prevent transmission of the light of the specific wavelength.
    Type: Grant
    Filed: May 31, 2005
    Date of Patent: December 1, 2009
    Assignee: LG Display Co., Ltd.
    Inventors: Jae Kyun Lee, Seung Ryull Park
  • Patent number: 7567310
    Abstract: An array substrate device includes a gate line formed on a substrate extending along a first direction having a gate electrode, a data line formed on the substrate extending along a second direction having a data pad disposed apart from a first end of the data line, the data and gate lines defining a pixel region, a gate pad formed on the substrate disposed apart from a first end of the gate line, a thin film transistor formed at a crossing region of the gate and data lines and including the gate electrode, a semiconductor layer, a source electrode, and a drain electrode, a black matrix overlapping the thin film transistor, the gate line, and the data line except for a first portion of the drain electrode, a first pixel electrode at the pixel region contacting the first portion of the drain electrode and the substrate, a color filter on the first pixel electrode at the pixel region, and a second pixel electrode on the color filter contacting the first pixel electrode.
    Type: Grant
    Filed: August 31, 2007
    Date of Patent: July 28, 2009
    Assignee: LG Display Co., Ltd.
    Inventors: Youn-Gyoung Chang, Seung-Ryull Park, Woong-Kwon Kim, Jong-Hwae Lee
  • Publication number: 20090185092
    Abstract: Disclosed is an in-plane switching (IPS) mode liquid crystal display (LCD) device having an increased aperture ratio by overlapping a storage capacitor on a lower end of an electrode. The (IPS) mode liquid crystal display device (LCD) device includes first and second substrates; a gate line and a data line arranged horizontally and vertically to define a plurality of pixel regions on the first substrate; a switching device, having a gate electrode, a semiconductor layer and source and drain electrodes, at a crossing of the gate line and the data line; a passivation film on an entire surface of the first substrate including the switching device; a common electrode and a pixel electrode alternately disposed at an upper portion of the passivation film and generating an in-plane electric field, wherein at least one of the common and pixel electrodes has a first storage capacitor at its lower end; and a liquid crystal layer between the first and second substrates.
    Type: Application
    Filed: March 16, 2009
    Publication date: July 23, 2009
    Inventors: Seung Ryull Park, Dong Guk Kim
  • Patent number: 7545463
    Abstract: A liquid crystal display structure is provided. The liquid crystal display structure includes a gate line and a data line crossing each other on a substrate to define a pixel region, a thin film transistor connected to the gate line and the data line, a color filter pattern in the pixel region, and a pixel electrode in the pixel region. The pixel electrode is above the color filter pattern and is a stack structure including a transparent layer, an opaque layer and a low reflective layer.
    Type: Grant
    Filed: June 29, 2005
    Date of Patent: June 9, 2009
    Assignee: LG Display Co., Ltd.
    Inventor: Seung-Ryull Park
  • Publication number: 20090141205
    Abstract: Provided is an LCD having a liquid crystal panel including an active region serving as a display region and an outer region serving as a non-display region. The LCD includes a first substrate including an array unit and a color filter formed in the active region, an ESD (electrostatic discharge) circuit formed in the outer region, a pattern spacer formed on the ESD, a second substrate facing the first substrate, and a sealant for attaching the first and second substrates together.
    Type: Application
    Filed: November 4, 2008
    Publication date: June 4, 2009
    Inventor: Seung Ryull Park
  • Patent number: 7528917
    Abstract: A liquid crystal display device includes gate lines crossing data lines on a first substrate defining a pixel region; at least one common electrode formed in the pixel region; at least one pixel electrode in the pixel region, the at least one pixel electrode corresponding to the common electrode; a color filter layer formed within the pixel region excluding the gate line and the data line; a black matrix having at least three layers, an inner layer of the at least three layers being an electrode material.
    Type: Grant
    Filed: May 26, 2005
    Date of Patent: May 5, 2009
    Assignee: LG Display Co., Ltd.
    Inventors: Dong-Guk Kim, Seung-Ryull Park
  • Patent number: 7515237
    Abstract: Disclosed is an in-plane switching (IPS) mode liquid crystal display (LCD) device having an increased aperture ratio by overlapping a storage capacitor on a lower end of an electrode. The (IPS) mode liquid crystal display device (LCD) device includes first and second substrates; a gate line and a data line arranged horizontally and vertically to define a plurality of pixel regions on the first substrate; a switching device, having a gate electrode, a semiconductor layer and source and drain electrodes, at a crossing of the gate line and the data line; a passivation film on an entire surface of the first substrate including the switching device; a common electrode and a pixel electrode alternately disposed at an upper portion of the passivation film and generating an in-plane electric field, wherein at least one of the common and pixel electrodes has a first storage capacitor at its lower end; and a liquid crystal layer between the first and second substrates.
    Type: Grant
    Filed: June 27, 2005
    Date of Patent: April 7, 2009
    Assignee: LG Display Co., Ltd.
    Inventors: Seung Ryull Park, Dong Guk Kim
  • Patent number: 7456909
    Abstract: Provided is an LCD having a liquid crystal panel including an active region serving as a display region and an outer region serving as a non-display region. The LCD includes a first substrate including an array unit and a color filter formed in the active region, an ESD (electrostatic discharge) circuit formed in the outer region, a pattern spacer formed on the ESD, a second substrate facing the first substrate, and a sealant for attaching the first and second substrates together.
    Type: Grant
    Filed: June 27, 2005
    Date of Patent: November 25, 2008
    Assignee: LG Display Co., Ltd.
    Inventor: Seung Ryull Park
  • Publication number: 20080287029
    Abstract: An array substrate device includes a gate line formed on a substrate extending along a first direction having a gate electrode, a data line formed on the substrate extending along a second direction having a data pad disposed apart from a first end of the data line, the data and gate lines defining a pixel region, a gate pad formed on the substrate disposed apart from a first end of the gate line, a thin film transistor formed at a crossing region of the gate and data lines and including the gate electrode, a semiconductor layer, a source electrode, and a drain electrode, a black matrix overlapping the thin film transistor, the gate line, and the data line except for a first portion of the drain electrode, a first pixel electrode at the pixel region contacting the first portion of the drain electrode and the substrate, a color filter on the first pixel electrode at the pixel region, and a second pixel electrode on the color filter contacting the first pixel electrode.
    Type: Application
    Filed: June 11, 2008
    Publication date: November 20, 2008
    Inventors: Youn-Gyoung Chang, Seung-Ryull Park, Woong-Kwon Kim, Jong-Hwae Lee
  • Patent number: 7440041
    Abstract: A method of forming an array substrate for use in a liquid crystal display device includes forming a gate line, a gate pad, and a gate electrode, forming a first gate insulating layer to cover the gate line, the gate pad, and the gate electrode, forming an active layer and an ohmic contact layer on the first gate insulating layer, forming a data line, a data pad, a source electrode, and a drain electrode, forming a second insulating layer to cover the thin film transistor, forming a black matrix on the second insulating layer to cover the thin film transistor, the gate line, and the data line except a first portion of the drain electrode, forming a third insulating layer to cover the black matrix, patterning the first, second, and third insulating layers, forming a first transparent electrode layer to cover the patterned third insulating layer, coating an adhesive color film on the first transparent electrode layer, irradiating a laser to portions of the adhesive color film corresponding to the pixel region,
    Type: Grant
    Filed: October 4, 2006
    Date of Patent: October 21, 2008
    Assignee: LG Display Co., Ltd.
    Inventors: Youn-Gyoung Chang, Seung-Ryull Park
  • Patent number: 7400366
    Abstract: An array substrate device includes a gate line formed on a substrate extending along a first direction having a gate electrode, a data line formed on the substrate extending along a second direction having a data pad disposed apart from a first end of the data line, the data and gate lines defining a pixel region, a gate pad formed on the substrate disposed apart from a first end of the gate line, a thin film transistor formed at a crossing region of the gate and data lines and including the gate electrode, a semiconductor layer, a source electrode, and a drain electrode, a black matrix overlapping the thin film transistor, the gate line, and the data line except for a first portion of the drain electrode, a first pixel electrode at the pixel region contacting the first portion of the drain electrode and the substrate, a color filter on the first pixel electrode at the pixel region, and a second pixel electrode on the color filter contacting the first pixel electrode.
    Type: Grant
    Filed: January 11, 2007
    Date of Patent: July 15, 2008
    Assignee: LG Display Co., Ltd.
    Inventors: Youn-Gyoung Chang, Seung-Ryull Park, Woong-Kwon Kim, Jong-Hwae Lee