Patents by Inventor Young Sang Byun

Young Sang Byun 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: 7836934
    Abstract: A substrate bonding apparatus for use in fabricating LCD devices substantially prevents substrates held to upper stages from sagging. The substrate bonding apparatus may, for example, include upper and lower stages having a plurality of passages for holding respective substrates; suction force applying means having one end mounted within each passage for transmitting a suction force to operably proximate portions of a substrate, wherein the one end of the suction force applying means is projectable from within each passage to a predetermined distance from the stage; and a vacuum pump for providing a suction force to the suction force applying means.
    Type: Grant
    Filed: November 20, 2007
    Date of Patent: November 23, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Young Sang Byun, Kyung Su Chae
  • Patent number: 7718215
    Abstract: An apparatus for forming alignment layer includes a printing stage for supporting a substrate thereon, at least one inkjet head having at least one spray hole above the printing stage, the spray hole spraying an alignment material onto the substrate, a head support supporting the inkjet head, a pitch measuring unit adjacent to the inkjet head, and a display unit displaying measured results provided by the pitch measuring unit.
    Type: Grant
    Filed: November 20, 2007
    Date of Patent: May 18, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Young-Sang Byun, Joung-Won Choi, Hong-Seok Lee
  • Patent number: 7543921
    Abstract: An ink-jet printing apparatus that uniformly coats an alignment layer of an LCD device is provided. The ink-jet printing apparatus includes a head where the head has a head body and a supply pipe disposed inside the head body. The supply pipe allows the passage of a material through the head. The head also includes a nozzle and a foam removing means. The nozzle is in fluid communication with a portion of the supply pipe which discharges the material. The foam removing means is disposed in the nozzle and dissipates foam in the material.
    Type: Grant
    Filed: December 30, 2005
    Date of Patent: June 9, 2009
    Assignee: LG Display Co., Ltd.
    Inventors: Young Sang Byun, Young Phil Bang
  • Patent number: 7522253
    Abstract: A method of forming a liquid crystal layer on a substrate having a sealed pattern, which includes the steps of preparing a liquid crystal material in a projecting portion; applying a vibration and a pressure to the projecting portion so as to emit the liquid crystal material from the projecting portion, and depositing the emitted liquid crystal material on the substrate. Also, an apparatus is provided for forming a liquid crystal layer on a substrate having a sealed pattern which includes a projecting portion having a liquid crystal material; a resonator for generating a vibration, and a resonating plate for transmitting the vibration to the projecting portion.
    Type: Grant
    Filed: December 28, 2001
    Date of Patent: April 21, 2009
    Assignee: LG Display Co., Ltd.
    Inventors: Young-Sang Byun, Moo-Yeol Park
  • Patent number: 7438384
    Abstract: A device for washing an inkjet head and an inkjet printing system having the same is provided. The device includes a bath which holds a washing solution and a wiping device disposed above the bath. The wiping device has a holding portion and an elastic wiper coupled with the holding portion. The elastic wiper is movable with respect to the holding portion, thereby permitting easy removal of alignment material from a nozzle on the inkjet head and cleaning of the elastic wiper.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: October 21, 2008
    Assignee: LG Display Co., Ltd.
    Inventors: Young Sang Byun, Hyun Ho Song, Young Phil Bang, Chun Gi Kim
  • Patent number: 7414696
    Abstract: A fabrication system for a liquid crystal display device includes an alignment layer line for forming an alignment layer on a first substrate and a second substrate, the first substrate and the second substrate being separately supplied thereto, a spacer scattering line for scattering spacers on one of the first substrate and the second substrate, a sealant coating line for coating a sealant material on one of the first substrate and the second substrate, an assembling line for bonding the first and second substrates together, a cutting line for separating the bonded first and second substrates into a plurality of liquid crystal display cells, and a liquid crystal layer line for injecting liquid crystal material into each of the liquid crystal display cells, wherein the alignment layer line, the spacer scattering line, the sealant coating line, the assembling line, the cutting line, and the liquid crystal line are positioned along a single fabrication line.
    Type: Grant
    Filed: June 27, 2003
    Date of Patent: August 19, 2008
    Assignee: LG Display Co., Ltd.
    Inventors: Young-Sang Byun, Kyung-Su Chae
  • Publication number: 20080118653
    Abstract: An apparatus for forming alignment layer includes a printing stage for supporting a substrate thereon, at least one inkjet head having at least one spray hole above the printing stage, the spray hole spraying an alignment material onto the substrate, a head support supporting the inkjet head, a pitch measuring unit adjacent to the inkjet head, and a display unit displaying measured results provided by the pitch measuring unit.
    Type: Application
    Filed: November 20, 2007
    Publication date: May 22, 2008
    Inventors: Young-Sang Byun, Joung-Won Choi, Hong-Seok Lee
  • Patent number: 7349060
    Abstract: Loader and bonding apparatus for fabricating a liquid crystal display device, and a loading method thereof are disclosed, the method for loading a substrate by using a loader having an arm with a plurality of robot fingers, and a plurality of adsorption pads on each of the robot fingers at regular intervals for adsorbing a substrate, and a bonding apparatus having a plurality of adsorption pins mounted on the upper stage movable in up/down direction for adsorption of the substrate being loaded, including the steps of the loader adsorbing, and holding the substrate at a back side thereof, and inverting the substrate, by using the adsorption pads, positioning the inverted substrate under the upper stage of the bonding apparatus, moving down the adsorption pins on the upper stage, and adsorbing the substrate at the back side thereof through the adsorption pins, removing adsorption force of the adsorption pads, and the loader being moved out of the bonding apparatus, and moving up the adsorption pins, and securin
    Type: Grant
    Filed: October 18, 2004
    Date of Patent: March 25, 2008
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Young Sang Byun, Kyung Su Chae, Sang Ho Park, Se Joon Baek
  • Patent number: 7338560
    Abstract: An apparatus for forming alignment layer includes a printing stage for supporting a substrate thereon, at least one inkjet head having at least one spray hole above the printing stage, the spray hole spraying an alignment material onto the substrate, a head support supporting the inkjet head, a pitch measuring unit adjacent to the inkjet head, and a display unit displaying measured results provided by the pitch measuring unit.
    Type: Grant
    Filed: May 17, 2004
    Date of Patent: March 4, 2008
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Young-Sang Byun, Joung-Won Choi, Hong-Seok Lee
  • Patent number: 7314535
    Abstract: A substrate bonding apparatus for use in fabricating LCD devices substantially prevents substrates held to upper stages from sagging. The substrate bonding apparatus may, for example, include upper and lower stages having a plurality of passages for holding respective substrates; suction force applying means having one end mounted within each passage for transmitting a suction force to operably proximate portions of a substrate, wherein the one end of the suction force applying means is projectable from within each passage to a predetermined distance from the stage; and a vacuum pump for providing a suction force to the suction force applying means.
    Type: Grant
    Filed: November 5, 2003
    Date of Patent: January 1, 2008
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Young Sang Byun, Kyung Su Chae
  • Patent number: 7216584
    Abstract: A method of forming an alignment layer for a liquid crystal display device including: attaching a transfer film on a printing roll, the transfer film including a convex portion having first-sized halftone dots and second-sized halftone dots; positioning a substrate on a printing table; providing aligning solution on an anilox roll using a doctor roll; and transferring the aligning solution on the anilox roll to the transfer film while moving the printing table and rotating the printing roll, and then coating the aligning solution on the substrate to thereby form an alignment layer on the substrate.
    Type: Grant
    Filed: December 11, 2003
    Date of Patent: May 15, 2007
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Young-Sang Byun, Kyung-Su Chae, Heon-do Yun
  • Patent number: 7218374
    Abstract: An LCD device and a method of manufacturing the same are disclosed, in which a sealant concentrated upon the end of a dispensing device is formed in a dummy region on a substrate, so that a liquid crystal layer is not contaminated when both substrates are attached to each other and a cell cutting process can easily be performed. The method of manufacturing an LCD device includes preparing a lower substrate and an upper substrate, forming an auxiliary UV sealant in a dummy region on one of the lower and upper substrate and forming a main UV sealant, applying a liquid crystal on one of the lower and upper substrates, attaching the lower and upper substrates, and irradiating UV light onto the attached substrates.
    Type: Grant
    Filed: June 28, 2002
    Date of Patent: May 15, 2007
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Moo Yeol Park, Sung Su Jung, Young Sang Byun
  • Patent number: 7102723
    Abstract: A liquid crystal display (LCD) device includes first and second substrates facing each other and having a display area and a non-display area, a sealant on a boundary between the display area and the non-display area to bond the first and second substrates, a first alignment layer on the display area of the first substrate, and a first dam in the display area of the first substrate inside the sealant to prevent spread of an alignment material of the first alignment layer.
    Type: Grant
    Filed: June 24, 2004
    Date of Patent: September 5, 2006
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Young Sang Byun, Jeong Joon Lee, Heon Do Yun
  • Publication number: 20050128240
    Abstract: An apparatus for forming alignment layer includes a printing stage for supporting a substrate thereon, at least one inkjet head having at least one spray hole above the printing stage, the spray hole spraying an alignment material onto the substrate, a head support supporting the inkjet head, a pitch measuring unit adjacent to the inkjet head, and a display unit displaying measured results provided by the pitch measuring unit.
    Type: Application
    Filed: May 17, 2004
    Publication date: June 16, 2005
    Inventors: Young-Sang Byun, Joung-Won Choi, Hong-Seok Lee
  • Publication number: 20050024579
    Abstract: A fabrication system for a liquid crystal display device includes an alignment layer line for forming an alignment layer on a first substrate and a second substrate, the first substrate and the second substrate being separately supplied thereto, a spacer scattering line for scattering spacers on one of the first substrate and the second substrate, a sealant coating line for coating a sealant material on one of the first substrate and the second substrate, an assembling line for bonding the first and second substrates together, a cutting line for separating the bonded first and second substrates into a plurality of liquid crystal display cells, and a liquid crystal layer line for injecting liquid crystal material into each of the liquid crystal display cells, wherein the alignment layer line, the spacer scattering line, the sealant coating line, the assembling line, the cutting line, and the liquid crystal line are positioned along a single fabrication line.
    Type: Application
    Filed: June 27, 2003
    Publication date: February 3, 2005
    Inventors: Young-Sang Byun, Kyung-Su Chae
  • Publication number: 20040131861
    Abstract: A device and method for forming an alignment layer of an LCD device are provided. In the device, a drying part is positioned vertically above a printing part, and an alignment layer is deposited on a substrate according to an inkjet method, so that it is possible to form the alignment layer on the substrate without relation to the size of the substrate. This improves the efficiency in using a clean room.
    Type: Application
    Filed: October 20, 2003
    Publication date: July 8, 2004
    Inventors: Kyung Su Chae, Young Sang Byun, Heon Do Yun
  • Publication number: 20040126540
    Abstract: A method of forming an alignment layer for a liquid crystal display device including: attaching a transfer film on a printing roll, the transfer film including a convex portion having first-sized halftone dots and second-sized halftone dots; positioning a substrate on a printing table; providing aligning solution on an anilox roll using a doctor roll; and transferring the aligning solution on the anilox roll to the transfer film while moving the printing table and rotating the printing roll, and then coating the aligning solution on the substrate to thereby form an alignment layer on the substrate.
    Type: Application
    Filed: December 11, 2003
    Publication date: July 1, 2004
    Applicant: LG.Philips LCD Co., Ltd.
    Inventors: Young-Sang Byun, Kyung-Su Chae, Heon-Do Yun
  • Publication number: 20040089415
    Abstract: A substrate bonding apparatus for use in fabricating LCD devices substantially prevents substrates held to upper stages from sagging. The substrate bonding apparatus may, for example, include upper and lower stages having a plurality of passages for holding respective substrates; suction force applying means having one end mounted within each passage for transmitting a suction force to operably proximate portions of a substrate, wherein the one end of the suction force applying means is projectable from within each passage to a predetermined distance from the stage; and a vacuum pump for providing a suction force to the suction force applying means.
    Type: Application
    Filed: November 5, 2003
    Publication date: May 13, 2004
    Inventors: Young Sang Byun, Kyung Su Chae
  • Publication number: 20030156246
    Abstract: An LCD device and a method of manufacturing the same are disclosed, in which a sealant concentrated upon the end of a dispensing device is formed in a dummy region on a substrate, so that a liquid crystal layer is not contaminated when both substrates are attached to each other and a cell cutting process can easily be performed. The method of manufacturing an LCD device includes preparing a lower substrate and an upper substrate, forming an auxiliary UV sealant in a dummy region on one of the lower and upper substrate and forming a main UV sealant, applying a liquid crystal on one of the lower and upper substrates, attaching the lower and upper substrates, and irradiating UV light onto the attached substrates.
    Type: Application
    Filed: June 28, 2002
    Publication date: August 21, 2003
    Inventors: Moo Yeol Park, Sung Su Jung, Young Sang Byun
  • Patent number: RE46146
    Abstract: An LCD device and a method of manufacturing the same are disclosed, in which a sealant concentrated upon the end of a dispensing device is formed in a dummy region on a substrate, so that a liquid crystal layer is not contaminated when both substrates are attached to each other and a cell cutting process can easily be performed. The method of manufacturing an LCD device includes preparing a lower substrate and an upper substrate, forming an auxiliary UV sealant in a dummy region on one of the lower and upper substrate and forming a main UV sealant, applying a liquid crystal on one of the lower and upper substrates, attaching the lower and upper substrates, and irradiating UV light onto the attached substrates.
    Type: Grant
    Filed: August 6, 2013
    Date of Patent: September 13, 2016
    Assignee: LG DISPLAY CO., LTD
    Inventors: Moo Yeol Park, Sung Su Jung, Young Sang Byun