Patents by Inventor Joo-Soo Lim

Joo-Soo Lim 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: 8456601
    Abstract: An array substrate for a liquid crystal display device includes a substrate, a gate line on the substrate, a thin film transistor including a gate electrode of the gate line, a gate insulating layer over the gate electrode, an active layer on the gate insulating layer and ohmic contact layers on the active layer, and source and drain electrodes over the ohmic contact layers, a pixel electrode electrically connected to the drain electrode, a data line electrically connected to the source electrode and crossing the gate line, a common electrode spaced apart from the pixel electrode, and a passivation layer directly between the pixel electrode and the common electrode and directly between the source and drain electrodes.
    Type: Grant
    Filed: July 28, 2011
    Date of Patent: June 4, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Joo-Soo Lim, Hyo-Uk Kim, Hee-Young Kwack, Hyun-Seok Hong, Byung-Chul Ahn, Byoung-Ho Lim
  • Patent number: 8454847
    Abstract: A method of lifting off includes forming a first material layer on a substrate; forming a photoresist pattern including first and second holes and on the first material layer; patterning the first material layer using the photoresist pattern as a patterning mask to form a material pattern having first and second grooves within the material pattern, the first and second grooves corresponding to the first and second holes, respectively; forming a second material layer on an entire surface of the substrate including the photoresist pattern and the first and second grooves; and removing the photoresist pattern and the second material layer on the photoresist pattern at the same time, wherein a portion of the material pattern between the first and second grooves and portions of the material pattern at sides of the first and second grooves constitute a line as a whole.
    Type: Grant
    Filed: June 21, 2011
    Date of Patent: June 4, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Hee-Young Kwack, Hyun-Seok Hong, Joo-Soo Lim, Hong-Sik Kim
  • Patent number: 8377265
    Abstract: A method of forming an inorganic insulating layer on a substrate comprises supplying a mixed gas between the substrate and a target, and generating a plasma between the substrate and the target. The target comprises a silicon-based material. The method further comprises depositing a plurality of ions from the plasma on the substrate.
    Type: Grant
    Filed: December 31, 2007
    Date of Patent: February 19, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Joo-Soo Lim, Hong-Sik Kim, Hee-Young Kwack, Hyun-Seok Hong, Byung-Chul Ahn, Byoung-Ho Lim
  • Patent number: 8241935
    Abstract: A method of fabricating a liquid crystal display device having a concave reflector includes forming a switching element on a substrate, the switching element comprising a gate electrode, a semiconductor layer, a source electrode, and a drain electrode, forming a first insulating layer on the substrate including the switching element, forming a plurality of photoresist patterns on the first insulating layer, patterning the first insulating layer to have a concave surface by using the photoresist patterns as masks, and forming a reflector on the first insulating layer having the recessed uneven surface.
    Type: Grant
    Filed: December 11, 2003
    Date of Patent: August 14, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Woo-Nam Jeong, Hye-Young Kim, Joo-Soo Lim, Won-Seok Kang
  • Publication number: 20110281386
    Abstract: An array substrate for a liquid crystal display device includes a substrate, a gate line on the substrate, a thin film transistor including a gate electrode of the gate line, a gate insulating layer over the gate electrode, an active layer on the gate insulating layer and ohmic contact layers on the active layer, and source and drain electrodes over the ohmic contact layers, a pixel electrode electrically connected to the drain electrode, a data line electrically connected to the source electrode and crossing the gate line, a common electrode spaced apart from the pixel electrode, and a passivation layer directly between the pixel electrode and the common electrode and directly between the source and drain electrodes.
    Type: Application
    Filed: July 28, 2011
    Publication date: November 17, 2011
    Inventors: Joo-Soo Lim, Hyo-Uk Kim, Hee-Young Kwack, Hyun-Seok Hong, Byung-Chul Ahn, Byoung-Ho Lim
  • Patent number: 8045077
    Abstract: A method for fabricating a liquid crystal display includes: providing an array substrate and a color filter substrate facing the array substrate; forming a gate electrode and a gate line formed of a first conductive film on the array substrate through a first masking process; forming a second conductive film pattern at an upper portion of the gate electrode, a storage capacitor preliminary pattern at a partial upper region of the gate electrode and a data line substantially crossing the gate line to define a pixel region, the second conductive film pattern, the storage capacitor preliminary pattern and the data line being formed of a second conductive film through a second masking process; forming an opaque insulation film surrounding the data line; forming a transparent third conductive film on the entire surface of the array substrate with the opaque insulation film interposed therebetween; patterning the second conductive film pattern and a third conductive film through a third masking process to form a so
    Type: Grant
    Filed: December 28, 2007
    Date of Patent: October 25, 2011
    Assignee: LG Display Co., Ltd.
    Inventors: Joo-Soo Lim, Hee-Young Kwack
  • Patent number: 8045078
    Abstract: An array substrate for a liquid crystal display device, including: a substrate; a gate line on the substrate; a data line crossing the gate line to define a pixel region; a thin film transistor connected to the gate line and the data line, the thin film transistor including a gate electrode connected to the gate line, a semiconductor layer whose boundary is within the gate electrode, a source electrode connected to the data line and a drain electrode spaced apart from the source electrode; a passivation pattern covering the data line and the thin film transistor; and a pixel electrode extending from the drain electrode.
    Type: Grant
    Filed: December 31, 2007
    Date of Patent: October 25, 2011
    Assignee: LG Display Co., Ltd.
    Inventors: Joo-Soo Lim, Hwan Kim, Hyo-Uk Kim, Byoung-Ho Lim
  • Publication number: 20110250532
    Abstract: A method of lifting off includes forming a first material layer on a substrate; forming a photoresist pattern including first and second holes and on the first material layer; patterning the first material layer using the photoresist pattern as a patterning mask to form a material pattern having first and second grooves within the material pattern, the first and second grooves corresponding to the first and second holes, respectively; forming a second material layer on an entire surface of the substrate including the photoresist pattern and the first and second grooves; and removing the photoresist pattern and the second material layer on the photoresist pattern at the same time, wherein a portion of the material pattern between the first and second grooves and portions of the material pattern at sides of the first and second grooves constitute a line as a whole.
    Type: Application
    Filed: June 21, 2011
    Publication date: October 13, 2011
    Inventors: Hee-Young Kwack, Hyun-Seok Hong, Joo-Soo Lim, Hong-Sik Kim
  • Patent number: 8031312
    Abstract: An array substrate for a liquid crystal display device includes a substrate, a gate line on the substrate, a thin film transistor including a gate electrode of the gate line, a gate insulating layer over the gate electrode, an active layer on the gate insulating layer and ohmic contact layers on the active layer, and source and drain electrodes over the ohmic contact layers, a pixel electrode electrically connected to the drain electrode, a data line electrically connected to the source electrode and crossing the gate line, a common electrode spaced apart from the pixel electrode, and a passivation layer directly between the pixel electrode and the common electrode and directly between the source and drain electrodes.
    Type: Grant
    Filed: May 30, 2007
    Date of Patent: October 4, 2011
    Assignee: LG Display Co., Ltd.
    Inventors: Joo-Soo Lim, Hyo-Uk Kim, Hee-Young Kwack, Hyun-Seok Hong, Byung-Chul Ahn, Byoung-Ho Lim
  • Patent number: 7988871
    Abstract: A method of lifting off includes forming a first material layer on a substrate; forming a photoresist pattern including first and second holes and on the first material layer; patterning the first material layer using the photoresist pattern as a patterning mask to form a material pattern having first and second grooves within the material pattern, the first and second grooves corresponding to the first and second holes, respectively; forming a second material layer on an entire surface of the substrate including the photoresist pattern and the first and second grooves; and removing the photoresist pattern and the second material layer on the photoresist pattern at the same time, wherein a portion of the material pattern between the first and second grooves and portions of the material pattern at sides of the first and second grooves constitute a line as a whole.
    Type: Grant
    Filed: July 18, 2008
    Date of Patent: August 2, 2011
    Assignee: LG Display Co., Ltd.
    Inventors: Hee-Young Kwack, Hyun-Seok Hong, Joo-Soo Lim, Hong-Sik Kim
  • Patent number: 7808590
    Abstract: A fabricating method of an array substrate for a transflective liquid crystal display device includes: forming a gate electrode and a gate line on the substrate; depositing a first insulating layer on the gate electrode and the gate line; forming an active layer on the first insulating layer over the gate electrode; forming an ohmic contact layer on the active layer; forming source and drain electrodes on the ohmic contact layer, and a data line connected to the source electrode, the data line defining a pixel region with the gate line; depositing a second insulating layer on the source and drain electrodes, and the data line, the second insulating layer having an inorganic material; forming a reflective plate on the second insulating layer at the pixel region, the reflective plate having a transmissive hole; forming a third insulating layer on the reflective plate; and forming a pixel electrode on the third insulating layer at the pixel region, the pixel electrode being transparent and connected to the drain
    Type: Grant
    Filed: November 20, 2008
    Date of Patent: October 5, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Kyoung-Su Ha, Won-Seok Kang, Joo-Soo Lim, Se-duk Kim
  • Patent number: 7589800
    Abstract: A liquid crystal display device and a driving method for a liquid crystal display. The liquid crystal display device is formed to have thin film transistor conductive channels having an inverted ā€œUā€-shape. A shielding plate is provided to block incident light from reaching the conductive channels of the thin film transistors. This reduces or eliminates photo-induced leakage current and picture quality degradation. To prevent pixel electrode potential fluctuations caused by subsequent scan line drive signals, the liquid crystal display device is driven by scan signals that are sequentially applied from the mth gate line up to the first gate line.
    Type: Grant
    Filed: October 13, 2005
    Date of Patent: September 15, 2009
    Assignee: LG Display Co., Ltd.
    Inventors: Joo-Soo Lim, In-Byeong Kang
  • Patent number: 7531376
    Abstract: A fabricating method of an array substrate for a transflective liquid crystal display device includes forming a gate line on a substrate having a display portion and a surrounding portion, forming a gate insulating layer covering the gate line, forming a data line on the gate insulating layer, forming a gate pad and a data pad within the surrounding portion, the gate pad connected to the gate line and the data pad connected to the data line, forming a switching device connected to the gate and data lines, forming a reflective electrode within the display portion and connected to the switching device, forming a reflective plate within the surrounding portion, forming a passivation layer on the reflective electrode and the reflective plate, and forming a transmissive electrode on the passivation layer and connected to the reflective electrode.
    Type: Grant
    Filed: September 2, 2003
    Date of Patent: May 12, 2009
    Assignee: LG Display Co., Ltd.
    Inventor: Joo-Soo Lim
  • Patent number: 7522225
    Abstract: An array substrate device for a liquid crystal display device includes a gate line, a gate pad connected to a first end of the gate line, a gate insulating layer covering the gate line and the gate pad, a data line over the gate insulating layer and crossing the gate line to define a pixel region, a data pad connected to a first end of the data line, a thin film transistor disposed at a crossing region of the gate and data lines, a first inorganic insulating layer formed on the substrate covering the thin film transistor, the data line, and the data pad, a first organic insulating layer along an entire surface of the first inorganic insulation layer except at portions corresponding to the gate and data pads, a transparent pixel electrode disposed over the first organic insulating layer and connected to the thin film transistor, and a transparent gate pad terminal and a data pad terminal disposed over the first organic insulating layer and connected to the gate and data pads, respectively.
    Type: Grant
    Filed: February 8, 2006
    Date of Patent: April 21, 2009
    Assignee: LG Display Co., Ltd.
    Inventor: Joo-Soo Lim
  • Publication number: 20090096969
    Abstract: A fabricating method of an array substrate for a transflective liquid crystal display device includes: forming a gate electrode and a gate line on the substrate; depositing a first insulating layer on the gate electrode and the gate line; forming an active layer on the first insulating layer over the gate electrode; forming an ohmic contact layer on the active layer; forming source and drain electrodes on the ohmic contact layer, and a data line connected to the source electrode, the data line defining a pixel region with the gate line; depositing a second insulating layer on the source and drain electrodes, and the data line, the second insulating layer having an inorganic material; forming a reflective plate on the second insulating layer at the pixel region, the reflective plate having a transmissive hole; forming a third insulating layer on the reflective plate; and forming a pixel electrode on the third insulating layer at the pixel region, the pixel electrode being transparent and connected to the drain
    Type: Application
    Filed: November 20, 2008
    Publication date: April 16, 2009
    Inventors: Kyoung-Su Ha, Won-Seok Kang, Joo-Soo Lim, Se-duk Kim
  • Publication number: 20090032819
    Abstract: An array substrate for a liquid crystal display device, including: a substrate; a gate line on the substrate; a data line crossing the gate line to define a pixel region; a thin film transistor connected to the gate line and the data line, the thin film transistor including a gate electrode connected to the gate line, a semiconductor layer whose boundary is within the gate electrode, a source electrode connected to the data line and a drain electrode spaced apart from the source electrode; a passivation pattern covering the data line and the thin film transistor; and a pixel electrode extending from the drain electrode.
    Type: Application
    Filed: December 31, 2007
    Publication date: February 5, 2009
    Applicant: LG.PHILIPS LCD CO., LTD.
    Inventors: Joo-Soo Lim, Hwan Kim, Hyo-Uk Kim, Byoung-Ho Lim
  • Publication number: 20090021687
    Abstract: A method of lifting off includes forming a first material layer on a substrate; forming a photoresist pattern including first and second holes and on the first material layer; patterning the first material layer using the photoresist pattern as a patterning mask to form a material pattern having first and second grooves within the material pattern, the first and second grooves corresponding to the first and second holes, respectively; forming a second material layer on an entire surface of the substrate including the photoresist pattern and the first and second grooves; and removing the photoresist pattern and the second material layer on the photoresist pattern at the same time, wherein a portion of the material pattern between the first and second grooves and portions of the material pattern at sides of the first and second grooves constitute a line as a whole.
    Type: Application
    Filed: July 18, 2008
    Publication date: January 22, 2009
    Inventors: Hee-Young Kwack, Hyun-Seok Hong, Joo-Soo Lim, Hong-Sik Kim
  • Publication number: 20090023254
    Abstract: A method of forming an inorganic insulating layer on a substrate comprises supplying a mixed gas between the substrate and a target, and generating a plasma between the substrate and the target. The target comprises a silicon-based material. The method further comprises depositing a plurality of ions from the plasma on the substrate.
    Type: Application
    Filed: December 31, 2007
    Publication date: January 22, 2009
    Inventors: Joo-Soo Lim, Hong-Sik Kim, Hee-Young Kwack, Hyun-Seok Hong, Byung-Chul Ahn, Byoung-Ho Lim
  • Patent number: 7468767
    Abstract: A fabricating method of an array substrate for a transflective liquid crystal display device includes: forming a gate electrode and a gate line on the substrate; depositing a first insulating layer on the gate electrode and the gate line; forming an active layer on the first insulating layer over the gate electrode; forming an ohmic contact layer on the active layer; forming source and drain electrodes on the ohmic contact layer, and a data line connected to the source electrode, the data line defining a pixel region with the gate line; depositing a second insulating layer on the source and drain electrodes, and the data line, the second insulating layer having an inorganic material; forming a reflective plate on the second insulating layer at the pixel region, the reflective plate having a transmissive hole; forming a third insulating layer on the reflective plate; and forming a pixel electrode on the third insulating layer at the pixel region, the pixel electrode being transparent and connected to the drain
    Type: Grant
    Filed: June 27, 2005
    Date of Patent: December 23, 2008
    Assignee: LG Display Co., Ltd.
    Inventors: Kyoung-Su Ha, Won-Seok Kang, Joo-Soo Lim, Se-duk Kim
  • Publication number: 20080174709
    Abstract: A method for fabricating a liquid crystal display includes: providing an array substrate and a color filter substrate facing the array substrate; forming a gate electrode and a gate line formed of a first conductive film on the array substrate through a first masking process; forming a second conductive film pattern at an upper portion of the gate electrode, a storage capacitor preliminary pattern at a partial upper region of the gate electrode and a data line substantially crossing the gate line to define a pixel region, the second conductive film pattern, the storage capacitor preliminary pattern and the data line being formed of a second conductive film through a second masking process; forming an opaque insulation film surrounding the data line; forming a transparent third conductive film on the entire surface of the array substrate with the opaque insulation film interposed therebetween; patterning the second conductive film pattern and a third conductive film through a third masking process to form a so
    Type: Application
    Filed: December 28, 2007
    Publication date: July 24, 2008
    Applicant: LG.Philips LCD Co., Ltd.
    Inventors: Joo-Soo Lim, Hee-Young Kwack