Patents by Inventor Heung-Lyul Cho

Heung-Lyul Cho 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).

  • Publication number: 20110027923
    Abstract: An organic light emitting device and a manufacturing method thereof are provided. The organic light emitting device includes a first display substrate, a second display substrate, and a first adhesive force improving member. The first display substrate includes a first substrate, a first electrode, organic light emitting patterns, a first spacer, and a second electrode. The first electrode is formed on an entire surface of the first substrate, and the organic light emitting patterns are disposed on the first electrode. The first spacer corresponds to the organic light emitting pattern and is disposed on the first electrode. The second electrode covers the organic light emitting patterns and the first spacer. The second display substrate includes a second substrate, and a first driving signal delivery part. The first adhesive force improving member electrically/physically couples the second electrode to the first driving signal delivery part.
    Type: Application
    Filed: October 5, 2010
    Publication date: February 3, 2011
    Inventors: Byun Chul Ahn, Jeong Hyun Kim, Heung Lyul Cho
  • Publication number: 20110000876
    Abstract: A method for manufacturing a liquid crystal display includes simultaneously forming a gate electrode and a gate bus line on a transparent dielectric substrate, simultaneously forming a channel layer, an ohmic contact layer, and source/drain electrodes by forming a gate insulation film, an amorphous silicon film, a doped amorphous silicon film, and a metal film on the transparent dielectric substrate on which the gate electrode and the gate bus line are formed and etching the metal film, the amorphous silicon film, and the doped amorphous silicon film, and forming a pixel electrode by forming a protective film and a transparent metal film on the transparent dielectric substrate upon which the source/drain electrodes are formed and finely etching the transparent metal film through a lift-off process using a stripper solution.
    Type: Application
    Filed: July 15, 2010
    Publication date: January 6, 2011
    Applicant: LG Display Co., Ltd.
    Inventors: Soon Sung YOO, Oh Nam Kwon, Heung Lyul Cho
  • Publication number: 20100326469
    Abstract: The present invention relates to an apparatus and a method of fabricating a thin film transistor array substrate. The apparatus includes a dip strip part for stripping a photo-resist pattern and a thin film formed on a substrate by using a stripper; a removing part for removing residual photo-resist and thin film from the substrate; and a jet strip part for jetting the stripper to remove residual particles of photo-resist and thin film left on the substrate. The method of fabricating includes dipping a substrate in a stripper, wherein the substrate has a photo-resist pattern and a thin film, the thin film being formed on an entire surface of the substrate so as to cover the photo-resist pattern; removing residual photo-resist and thin film using the stripper; and removing particles of residual photo-resist and thin film left on the substrate.
    Type: Application
    Filed: September 13, 2010
    Publication date: December 30, 2010
    Inventors: Oh Nam Kwon, Heung Lyul Cho
  • Publication number: 20100302484
    Abstract: The present invention relates to an apparatus and method for repairing a liquid crystal display panel, which is capable of improving a yield thereof by darkening a bright point to minimize a defect ratio thereof. An apparatus for repairing a liquid crystal display panel according to the present invention includes: a liquid crystal display panel including a repair film formed on any one of a first substrate and a second substrate, which are facing to each other with a liquid crystal layer therebetween; and a laser irradiating device to irradiate a laser to the repair film to darken a specific area of the repair film, which is corresponded to an area where a bright point appears in the liquid crystal display panel.
    Type: Application
    Filed: November 20, 2009
    Publication date: December 2, 2010
    Inventors: Soon Sung Yoo, Oh Nam Kwon, Heung Lyul Cho, Seung Hee Nam
  • Patent number: 7839082
    Abstract: Provided are an organic light emitting device and a manufacturing method thereof. The organic light emitting device includes a first display substrate, a second display substrate, and a first adhesive force improving member. The first display substrate includes a first substrate, a first electrode, organic light emitting patterns, a first spacer, and a second electrode. The first electrode is formed on an entire surface of the first substrate, and the organic light emitting patterns are disposed on the first electrode. The first spacer corresponds to the organic light emitting pattern and is disposed on the first electrode. The second electrode covers the organic light emitting patterns and the first spacer. The second display substrate includes a second substrate, and a first driving signal delivery part. The first adhesive force improving member electrically/physically couples the second electrode to the first driving signal delivery part.
    Type: Grant
    Filed: June 29, 2007
    Date of Patent: November 23, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Byung Chul Ahn, Jeong Hyun Kim, Heung Lyul Cho
  • Patent number: 7811147
    Abstract: Provided are an organic electroluminescent device and a fabrication method thereof. The organic electroluminescent device includes a first substrate, a second substrate, an organic electroluminescent layer formed on the first substrate, a thin film transistor formed on the second substrate, and first and second seal lines attaching the first and second substrates to each other.
    Type: Grant
    Filed: June 26, 2007
    Date of Patent: October 12, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Jeong Hyun Kim, Jae Yoon Lee, Choong Keun Yoo, Heung Lyul Cho, Kang Ju Lee, Se Young Park
  • Patent number: 7811937
    Abstract: The present invention relates to an apparatus and a method of fabricating a thin film transistor array substrate. The apparatus includes a dip strip component for stripping a photo-resist pattern and a thin film formed on a substrate by using a stripper; a removing part for removing residual photo-resist and thin film from the substrate; and a jet strip component for jetting the stripper to remove residual particles of photo-resist and thin film left on the substrate. The method of fabricating includes dipping a substrate in a stripper, wherein the substrate has a photo-resist pattern and a thin film, the thin film being formed on an entire surface of the substrate so as to cover the photo-resist pattern; removing residual photo-resist and thin film using the stripper; and removing particles of residual photo-resist and thin film left on the substrate.
    Type: Grant
    Filed: October 12, 2004
    Date of Patent: October 12, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Ob Nam Kwon, Heung Lyul Cho
  • Patent number: 7807339
    Abstract: A patterning method includes depositing a pattern target layer on a surface of a substrate, providing a printing plate with concaves in a first side of a transparent substrate and an opaque layer on the first side except in the concaves of the first sides, filling resins into the concaves of the printing plate, positioning the substrate of the printing plate to correspond to an upper portion of the pattern target layer, and transferring resins of the printing plate onto the pattern target layer by exposing resins to a curing light to harden resins.
    Type: Grant
    Filed: December 22, 2005
    Date of Patent: October 5, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Oh Nam Kwon, Heung Lyul Cho
  • Patent number: 7808609
    Abstract: An LCD and an LCD repairing method are provided. The LCD repairing method includes forming a hole on a first or second substrate at a position corresponding to a defective pixel and forming a pigment in the hole. The LCD includes a first substrate on which a pixel electrode and a TFT are formed in a pixel region formed in a matrix pattern, a second substrate on which a color filter layer and a black matrix are formed, the second substrate facing the first substrate, a hole formed on an outer surface of the first or second substrate to repair a defective pixel, and a repair pattern formed in the hole.
    Type: Grant
    Filed: October 4, 2005
    Date of Patent: October 5, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Ki Yong Kim, Soon Sung Yoo, Oh Nam Kwon, Heung Lyul Cho, Seung Hee Nam
  • Publication number: 20100225869
    Abstract: A liquid crystal display device and a fabricating method thereof for simplifying a process are disclosed. In the method of fabricating the liquid crystal display device, a first conductive pattern group including a gate line and a gate electrode, a common line and a common electrode, a pixel electrode and a pad is formed on a substrate. An insulating film including a plurality of contact holes and a semiconductor pattern is formed on the first mask pattern group.
    Type: Application
    Filed: May 21, 2010
    Publication date: September 9, 2010
    Inventors: Byung Chul AHN, Soon Sung Yoo, Oh Nam Kwon, Youn Gyoung Chang, Heung Lyul Cho, Seung Hee Nam
  • Patent number: 7781156
    Abstract: A method of fabricating a printing plate includes: preparing a substrate; forming a metal layer on an entire surface of the substrate; forming a resist pattern on the metal layer, the resist pattern having a fine pattern exposing a portion of the metal layer; wet etching the exposed metal layer, and removing the resist pattern to form a metal layer pattern exposing a portion of the substrate; wet etching the exposed substrate, and removing the metal layer pattern to form a recessed pattern; and forming a compensation layer on an entire surface of the substrate where the recessed pattern is formed.
    Type: Grant
    Filed: April 28, 2006
    Date of Patent: August 24, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Soon Sung Yoo, Youn Gyoung Chang, Heung Lyul Cho
  • Patent number: 7776668
    Abstract: A method for manufacturing a liquid crystal display includes simultaneously forming a gate electrode and a gate bus line on a transparent dielectric substrate, simultaneously forming a channel layer, an ohmic contact layer, and source/drain electrodes by forming a gate insulation film, an amorphous silicon film, a doped amorphous silicon film, and a metal film on the transparent dielectric substrate on which the gate electrode and the gate bus line are formed and etching the metal film, the amorphous silicon film, and the doped amorphous silicon film, and forming a pixel electrode by forming a protective film and a transparent metal film on the transparent dielectric substrate upon which the source/drain electrodes are formed and finely etching the transparent metal film through a lift-off process using a stripper solution.
    Type: Grant
    Filed: April 29, 2005
    Date of Patent: August 17, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Soon Sung Yoo, Oh Nam Kwon, Heung Lyul Cho
  • Patent number: 7763483
    Abstract: A method of manufacturing an array substrate for a liquid crystal display device includes forming a gate line, a gate pad and a gate electrode on a substrate through a first mask process, forming a data line, a data pad, a source electrode, a drain electrode and an active layer on the substrate including the gate line, the gate pad and the gate electrode through a second mask process, wherein the data line crosses the gate line to define a pixel region, the source electrode is extended from the data line, the drain electrode is spaced apart from the source electrode, and the active layer is disposed between the gate electrode and the source and drain electrodes, forming a passivation layer on an entire surface of the substrate including the data line, the source electrode and the drain electrode through a third mask process, the passivation layer being etched to expose the substrate in the pixel region, a part of the drain electrode, the gate pad and the data pad, and forming a pixel electrode, a gate pad ter
    Type: Grant
    Filed: January 5, 2009
    Date of Patent: July 27, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Youn-Gyoung Chang, Heung-Lyul Cho, Soon-Sung Yoo
  • Patent number: 7760322
    Abstract: An array substrate for a liquid crystal display device includes a gate line and a first storage electrode on a substrate, a data line crossing the gate line to define a first pixel region, a thin film transistor connected to the gate line and the data line, a second storage electrode over the first storage electrode, a first pixel electrode in the first pixel region, the first pixel electrode connected to the thin film transistor and the second storage electrode, the second storage electrode including a first portion over the first storage electrode and a second portion in a second pixel region adjacent to the first pixel region, and a repair pattern for the first pixel region between the second storage electrode and a second pixel electrode in the second pixel region.
    Type: Grant
    Filed: June 16, 2006
    Date of Patent: July 20, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Soon Sung Yoo, Youn-Gyoung Chang, Heung Lyul Cho, Seung Hee Nam
  • Patent number: 7751021
    Abstract: A liquid crystal display device and a fabricating method thereof for simplifying a process are disclosed. In the method of fabricating the liquid crystal display device, a first conductive pattern group including a gate line and a gate electrode, a common line and a common electrode, a pixel electrode and a pad is formed on a substrate. An insulating film including a plurality of contact holes and a semiconductor pattern is formed on the first mask pattern group. And a second conductive pattern group including a data line, a source electrode and a drain electrode is formed on an insulating film provided with the semiconductor pattern, and exposes an active layer of the semiconductor pattern.
    Type: Grant
    Filed: June 21, 2006
    Date of Patent: July 6, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Byung Chul Ahn, Soon Sung Yoo, Oh Nam Kwon, Youn Gyoung Chang, Heung Lyul Cho, Seung Hee Nam
  • Patent number: 7749823
    Abstract: A thin film transistor substrate of horizontal electric field type includes: a gate line and a first common line formed on a substrate to be in parallel to each other; a data line crossing the gate line and the first common line with a gate insulating film therebetween to define a pixel area; a second common line crossing the first common line having the gate insulating film therebetween; a thin film transistor connected to the gate line and the data line; a common electrode extending from the second common line in said pixel area; a pixel electrode that is parallel to the common electrode and the second common line; a protective film for covering the thin film transistor; a gate pad having a lower gate pad electrode connected to an upper gate pad electrode through a first contact hole; a common pad having a lower common pad electrode connected to an upper common pad electrode through a second contact hole; and a data pad having a lower data pad electrode connected to an upper data pad electrode provided with
    Type: Grant
    Filed: May 29, 2009
    Date of Patent: July 6, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Byung Chul Ahn, Oh Nam Kwon, Heung Lyul Cho
  • Publication number: 20100163883
    Abstract: A manufacturing method of an electro line for a liquid crystal display device includes depositing a barrier layer made of a conducting material on a substrate, depositing a copper layer (Cu) on the barrier layer, wet-etching the Cu layer using a first etchant, and dry-etching the barrier layer using a second etchant using the wet-etched Cu layer as an etch mask.
    Type: Application
    Filed: March 5, 2010
    Publication date: July 1, 2010
    Inventors: Oh-Nam KWON, Kyoung-Mook LEE, Heung-Lyul CHO, Seung-Hee NAM, Cyoo-Chul JO
  • Patent number: 7738071
    Abstract: This invention relates to a method of forming fine pattern that is adaptive for forming a fine pattern without limit of an exposure resolution, a liquid crystal display device and a fabricating method. The method of forming fine pattern comprises forming a photo-resist pattern on a transparent conductive layer. The photo-resist pattern having a minimum line width corresponding to an exposure resolution of an exposure device. The method further comprises over-etching the transparent conductive layer by an etching process using the photo-resist pattern as a mask to form an electrode pattern having a line width narrower than the exposure resolution of the exposure device.
    Type: Grant
    Filed: June 23, 2006
    Date of Patent: June 15, 2010
    Assignee: LG. Display Co., Ltd.
    Inventors: Soon Sung Yoo, Oh Nam Kwon, Heung Lyul Cho, Seung Hee Nam
  • Patent number: 7704767
    Abstract: A manufacturing method of an electro line for a liquid crystal display device includes depositing a barrier layer made of a conducting material on a substrate, depositing a copper layer (Cu) on the barrier layer, wet-etching the Cu layer using a first etchant, and dry-etching the barrier layer using a second etchant using the wet-etched Cu layer as an etch mask.
    Type: Grant
    Filed: March 16, 2009
    Date of Patent: April 27, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Oh-Nam Kwon, Kyoung-Mook Lee, Heung-Lyul Cho, Seung-Hee Nam, Cyoo-Chul Jo
  • Patent number: 7649609
    Abstract: A method for repairing a short defect according to the present invention includes forming a first conductive pattern on a substrate, forming a photo-resist pattern on the first conductive pattern using a rear exposure for the first conductive pattern being shorted by a residue pattern, and removing the residue pattern exposed through the photo-resist pattern.
    Type: Grant
    Filed: June 2, 2006
    Date of Patent: January 19, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Soon Sung Yoo, Heung Lyul Cho