Patents by Inventor Gi-Sang HONG

Gi-Sang HONG 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: 20230013464
    Abstract: A display apparatus includes a light-emitting device and a driving circuit disposed in each pixel area. The driving circuit electrically connected to the light-emitting device may include a first thin film transistor, a second thin film transistor and a storage capacitor. A second semiconductor pattern of the second thin film transistor may be made of a material different from a first semiconductor pattern of the first thin film transistor. A separation insulating layer may be disposed between the first semiconductor pattern and the second semiconductor pattern. The storage capacitor may include a first capacitor electrode and a second capacitor electrode, which are sequentially stacked on the separation insulating layer. The first capacitor electrode may have a stacked structure of a first electrode layer including the same material as the second semiconductor pattern and a second electrode layer including a material having lower resistance than the first electrode layer.
    Type: Application
    Filed: June 21, 2022
    Publication date: January 19, 2023
    Inventors: Gi Sang Hong, Young Wook Lee
  • Patent number: 9310655
    Abstract: An apparatus and method for fabricating a flat panel display device are discussed. According to an embodiment, the apparatus includes a coating line configured to form a transparent conductive metal layer on a substrate, a blackening line configured to blacken the transparent conductive metal layer, an exposure line configured to expose the blackened metal layer, a developing line configured to receive the exposed substrate having the blackened metal layer and to perform development on the received substrate to form a blackened metal pattern on the substrate, and an annealing line configured to perform annealing on the blackened metal pattern on the substrate to restore the blackened metal pattern to a transparent metal pattern.
    Type: Grant
    Filed: November 9, 2011
    Date of Patent: April 12, 2016
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Yong-Il Kim, Jung-Ho Bang, Gi-Sang Hong
  • Patent number: 8802464
    Abstract: A method for fabricating a process substrate includes: providing a first substrate; providing a substrate and an auxiliary substrate; contacting the substrate and the auxiliary substrate with each other in a vacuum state, thereby forming micro spaces of a vacuum state between the substrate and the auxiliary substrate; and increasing a pressure at the outside of the contacted substrate and auxiliary substrate to attach the substrate and the auxiliary substrate to each other by a pressure difference between the micro spaces and the outside of the contacted substrate and auxiliary substrate.
    Type: Grant
    Filed: April 30, 2012
    Date of Patent: August 12, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Jae-Won Lee, Ki-Yong Kim, Jae Young Oh, Yong-Su An, Sung-Ki Kim, Gi-Sang Hong, Jin-Bok Lee, Sang-Hyuk Won, Dong-Kyu Lee
  • Patent number: 8658479
    Abstract: A method of forming a transparent electrode includes forming a first transparent conductive material layer on a base; performing a plasma process on the first transparent conductive material layer such that the upper portion of the first transparent conductive material layer is changed into semitransparent; forming a second transparent conductive material layer on the first transparent conductive material layer; patterning the second transparent conductive material layer and the first transparent conductive material layer; and annealing the patterned second transparent conductive material layer and the patterned first transparent conductive material layer such that the upper portion of the first transparent conductive material layer is changed into transparent.
    Type: Grant
    Filed: July 16, 2012
    Date of Patent: February 25, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Yong-Il Kim, Jeong-Oh Kim, Gi-Sang Hong, Jung-Sun Beak
  • Patent number: 8599336
    Abstract: A liquid crystal display device includes first and second substrates facing each other, wherein a pixel region is defined on the first and second substrates, first and second grooves formed on an inner surface of the first substrate, a gate line formed in the first groove along a direction, a common line formed in the second groove and parallel to the gate line, a data line crossing the gate line to define the pixel region, a thin film transistor connected to the gate line and the data line, and a light-shielding pattern of a black inorganic material and around the gate line, the data line and the common line.
    Type: Grant
    Filed: May 4, 2011
    Date of Patent: December 3, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Jung-Il Lee, In-Jae Chung, Kang-Il Kim, Gi-Sang Hong
  • Publication number: 20130029446
    Abstract: A method of forming a transparent electrode includes forming a first transparent conductive material layer on a base; performing a plasma process on the first transparent conductive material layer such that the upper portion of the first transparent conductive material layer is changed into semitransparent; forming a second transparent conductive material layer on the first transparent conductive material layer; patterning the second transparent conductive material layer and the first transparent conductive material layer; and annealing the patterned second transparent conductive material layer and the patterned first transparent conductive material layer such that the upper portion of the first transparent conductive material layer is changed into transparent.
    Type: Application
    Filed: July 16, 2012
    Publication date: January 31, 2013
    Inventors: Yong-Il KIM, Jeong-Oh KIM, Gi-Sang HONG, Jung-Sun BEAK
  • Publication number: 20130023075
    Abstract: A method for fabricating a process substrate includes: providing a first substrate; providing a substrate and an auxiliary substrate; contacting the substrate and the auxiliary substrate with each other in a vacuum state, thereby forming micro spaces of a vacuum state between the substrate and the auxiliary substrate; and increasing a pressure at the outside of the contacted substrate and auxiliary substrate to attach the substrate and the auxiliary substrate to each other by a pressure difference between the micro spaces and the outside of the contacted substrate and auxiliary substrate.
    Type: Application
    Filed: April 30, 2012
    Publication date: January 24, 2013
    Inventors: Jae-Won LEE, Ki-Yong KIM, Jae Young OH, Yong-Su AN, Sung-Ki KIM, Gi-Sang HONG, Jin-Bok LEE, Sang-Hyuk WON, Dong-Kyu LEE
  • Publication number: 20120122366
    Abstract: An apparatus and method for fabricating a flat panel display device are discussed. According to an embodiment, the apparatus includes a coating line configured to form a transparent conductive metal layer on a substrate, a blackening line configured to blacken the transparent conductive metal layer, an exposure line configured to expose the blackened metal layer, a developing line configured to receive the exposed substrate having the blackened metal layer and to perform development on the received substrate to form a blackened metal pattern on the substrate, and an annealing line configured to perform annealing on the blackened metal pattern on the substrate to restore the blackened metal pattern to a transparent metal pattern.
    Type: Application
    Filed: November 9, 2011
    Publication date: May 17, 2012
    Inventors: Yong-Il KIM, Jung-Ho Bang, Gi-Sang Hong
  • Publication number: 20110273648
    Abstract: A liquid crystal display device includes first and second substrates facing each other, wherein a pixel region is defined on the first and second substrates, first and second grooves formed on an inner surface of the first substrate, a gate line formed in the first groove along a direction, a common line formed in the second groove and parallel to the gate line, a data line crossing the gate line to define the pixel region, a thin film transistor connected to the gate line and the data line, and a light-shielding pattern of a black inorganic material and around the gate line, the data line and the common line.
    Type: Application
    Filed: May 4, 2011
    Publication date: November 10, 2011
    Applicant: LG Display Co., Ltd.
    Inventors: Jung-II LEE, In-Jae CHUNG, Kang-Il KIM, Gi-Sang HONG