Patents by Inventor Hae-Joon Son

Hae-Joon Son 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: 7384485
    Abstract: A liquid crystal dispensing system includes a liquid crystal material container to contain liquid crystal, the liquid crystal material container provided with a first code corresponding to liquid crystal information; a reading unit to read the recognition code; a discharge pump to draw in and discharge liquid crystal from the liquid crystal material container; and a nozzle to dispense liquid crystal from the discharge pump onto a substrate.
    Type: Grant
    Filed: June 24, 2004
    Date of Patent: June 10, 2008
    Assignee: LG Display Co., Ltd.
    Inventors: Joung-Ho Ryu, Soo-Min Kwak, Hae-Joon Son
  • Publication number: 20080118654
    Abstract: A liquid crystal dispensing system includes a container to contain liquid crystal to be dispensed, a discharge pump to receive the liquid crystal from the container and to discharge the liquid crystal, a nozzle to dispense the liquid crystal discharged from the discharge pump onto a substrate, and a control unit to control a dispensing amount of liquid crystal discharged from the discharge pump and to compensate the dispensing amount when the dispensing amount of liquid crystal exceeds a limitation value.
    Type: Application
    Filed: December 4, 2007
    Publication date: May 22, 2008
    Inventors: Joung-Ho Ryu, Soo-Min Kwak, Hae-Joon Son, Man-Ho An, Joon-Young Kim, Do-Hyun Ryu, Seung-Soo Lee
  • Patent number: 7373958
    Abstract: A liquid crystal dispensing apparatus facilitating detection of vapor within liquid crystal material, facilitating removal of residual liquid crystal material, and facilitating precise control of predetermined dispensing positions and dispensing amounts includes a container containing liquid crystal material, a discharge pump drawing in and discharging liquid crystal material, and a nozzle dispensing liquid crystal material, discharged from the discharge pump, onto a substrate. The discharge pump includes a case, a window at a lower portion of the case, a cylinder within the case, a piston rotatably arranged within the cylinder and having a groove for drawing in and discharging liquid crystal material, and a suction opening and a discharge opening through which liquid crystal material is drawn into and discharged from with respect to the cylinder.
    Type: Grant
    Filed: June 25, 2004
    Date of Patent: May 20, 2008
    Assignees: LG Displays Co., Ltd., Top Engineering Co., Ltd.
    Inventors: Jae-Gyu Jeong, Soo-Min Kwak, Hae-Joon Son, Man-Ho An, Joon-Young Kim
  • Patent number: 7372511
    Abstract: Device for controlling spreading of liquid crystal including a stage, and variable temperature controlling means in the stage for controlling spreading of the liquid crystal, wherein the variable temperature controlling means is formed of a heating wire, and controls a temperature within a varied temperature of approximately 30°-120°, thereby reducing gaps of liquid crystal drops.
    Type: Grant
    Filed: December 27, 2002
    Date of Patent: May 13, 2008
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Wan Soo Kim, Hyug Jin Kweon, Hae Joon Son
  • Patent number: 7365824
    Abstract: A system for fabricating a liquid crystal display using liquid crystal dropping and a method of fabricating a liquid crystal display using the same includes a liquid crystal forming line dropping liquid crystals on the first substrate, a sealant forming line forming the sealant on the second substrate, and a bonding and hardening line bonding the two substrates to each other and hardening the sealant, printing a sealant, bonding the substrates each other, and hardening the sealant and an inspection process line of cutting the bonded substrates into panel units and grinding and inspecting the unit panels. The present invention includes the processes of dropping LC on a first substrate using a dispenser, forming a main UV hardening sealant on a second substrate, bonding the first and second substrates to each other in a vacuum state, UV hardening the main UV hardening sealant, cutting the bonded substrates into cell units, grinding the cut substrates, and finally inspecting the grinded substrates.
    Type: Grant
    Filed: December 3, 2004
    Date of Patent: April 29, 2008
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Yong Sang Byun, Moo Yeol Park, Sung Su Jung, Sung Chun Kang, Jong Woo Kim, Young Hun Ha, Sang Seok Lee, Sang Ho Park, Hun Jun Choo, Hyug Jin Kweon, Kyung Su Chae, Hae Joon Son, Sang Sun Shin, Jong Go Lim, Wan Soo Kim, Young Hun Jeung, Joung Ho Ryu, Ji Heum Uh, Im Su Lee
  • Patent number: 7363948
    Abstract: A liquid crystal dispensing apparatus dispenses liquid crystal onto a substrate. The liquid crystal dispensing apparatus includes a frame, a table, at least one liquid crystal discharge device, and a liquid crystal amount inspecting portion. The table is installed on the frame to have the substrate to be mounted thereon. The liquid crystal discharge device adjustably discharges an amount of liquid crystal, and the liquid crystal amount inspecting portion inspects a liquid crystal dispensing amount by comparing an actual amount of liquid crystal discharged from the liquid crystal discharge device with a preset liquid crystal amount. The liquid crystal discharge device includes a piston to perform ascending motions to draw in the liquid crystal and descending motions to discharge the liquid crystal with an angle of at least a portion of the liquid crystal discharge device determining a magnitude of the ascending/descending motion to control an amount of liquid crystal discharged.
    Type: Grant
    Filed: January 24, 2006
    Date of Patent: April 29, 2008
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Joung-Ho Ryu, Hyug-Jin Kweon, Hae-Joon Son, Kyu-Yong Bang, Joon-Young Kim, Man-Ho An, Yong-Kyu Seo
  • Publication number: 20080083787
    Abstract: A liquid crystal dispensing apparatus determines an amount of liquid crystal remaining within a liquid crystal container. The apparatus includes a liquid crystal dispensing unit for containing dispensing liquid crystal, capable of be dispensed directly onto a substrate and a main control unit for determining a total amount of liquid crystal dispensed onto the substrate based on a unitary amount of liquid crystal dispensed and the number of times the unitary amount was dispensed, and determining an amount of liquid crystal remaining by deducting the determined total amount dispensed from an initial amount of liquid crystal contained within the liquid crystal dispensing unit.
    Type: Application
    Filed: November 2, 2007
    Publication date: April 10, 2008
    Inventors: Hyug-Jin Kweon, Hae-Joon Son, Wan-Soo Kim
  • Patent number: 7351127
    Abstract: A liquid crystal dispensing apparatus having a multipart, separable needle that can be easily repaired should the needle becomes distorted or damaged.
    Type: Grant
    Filed: July 23, 2004
    Date of Patent: April 1, 2008
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Hyug-Jin Kweon, Hae-Joon Son
  • Patent number: 7322490
    Abstract: A liquid crystal dispensing system includes a container to contain liquid crystal to be dispensed, a discharge pump to receive the liquid crystal from the container and to discharge the liquid crystal, a nozzle to dispense the liquid crystal discharged from the discharge pump onto a substrate, and a control unit to control a dispensing amount of liquid crystal discharged from the discharge pump and to compensate the dispensing amount when the dispensing amount of liquid crystal exceeds a limitation value.
    Type: Grant
    Filed: May 7, 2004
    Date of Patent: January 29, 2008
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Joung-Ho Ryu, Soo-Min Kwak, Hae-Joon Son, Man-Ho An, Joon-Young Kim, Do-Hyun Ryu, Seung-Soo Lee
  • Publication number: 20080002137
    Abstract: An LCD device and a method for manufacturing the same is disclosed, in which it is possible to correct a problem of insufficient or excessive supply of liquid crystal in an LCD device by controlling an amount of liquid crystal. The method includes preparing a liquid crystal cell comprised of a first substrate, a second substrate, a liquid crystal layer between the first and second substrates, and a first sealant formed in the periphery of the liquid crystal layer between the first and second substrates; measuring an amount of liquid crystal provided to the inside of liquid crystal cell; forming an inlet for liquid crystal in the first sealant; and regulating the amount of liquid crystal by supplying or discharging the liquid crystal through the inlet; and sealing the inlet.
    Type: Application
    Filed: June 29, 2006
    Publication date: January 3, 2008
    Inventors: Bum Soo Kim, Byoung Chul Choi, Byoung-Mok Ha, Chang Bo Shim, Chang-Soo Na, Cheol Joo Moon, Chong Chan Eun, Gu-Yun Bok, Hae Joon Son, Heung-Sun Kim, Hong Seok Lee, Hyung Jin Park, Hyun-Ho Song, In Kye Lee, Jae Choon Ryu, Jae Ho Shin, Jae Min Jong, Je Hyun Kim, Jeong-Ho Lee, Jeong-Joon Lee, Jong Won Kim, Jun Beom Cho, Jun Young Yu, Jung Seung Kim, Jung-Deog Yoo, Jung-Sik Kim, Se Joon Baek, Seung-Bum Lee, Seung-Won Moon, Sung-Mo Koo, Tae Man Kim, Young Phil Bang, Myoung Su Yang, Jae Kyun Lee, Ilyun-Seok Jang, Jung Il Lee
  • Patent number: 7311228
    Abstract: A liquid crystal dispensing apparatus for dispensing liquid crystal onto a substrate includes a liquid crystal container, a nozzle structure, and a valve structure. The liquid crystal container contains the liquid crystal to be dispensed. The nozzle structure is disposed at a lower portion of the liquid crystal container, and the liquid crystal is dispensed through the nozzle structure onto the substrate. The valve structure is disposed to control flow of the liquid crystal from the liquid crystal container to the nozzle structure in accordance with a gas pressure provided from a gas input of the liquid crystal container. The liquid crystal container may be formed of substantially entirely of metal. An inside surface of the liquid crystal container may include a fluorine resin.
    Type: Grant
    Filed: August 31, 2004
    Date of Patent: December 25, 2007
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Wan-Soo Kim, Hyug-Jin Kweon, Hae-Joon Son
  • Patent number: 7306016
    Abstract: A liquid crystal dispensing apparatus determines an amount of liquid crystal remaining within a liquid crystal container. The apparatus includes a liquid crystal dispensing unit for containing dispensable liquid crystal, capable of be dispensed directly onto a substrate and a main control unit for determining a total amount of liquid crystal dispensed onto the substrate based on a unitary amount of liquid crystal dispensed and the number of times the unitary amount was dispensed, and determining an amount of liquid crystal remaining by deducting the determined total amount dispensed from an initial amount of liquid crystal contained within the liquid crystal dispensing unit.
    Type: Grant
    Filed: July 22, 2004
    Date of Patent: December 11, 2007
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Hyug-Jin Kweon, Hae-Joon Son, Wan-Soo Kim
  • Patent number: 7295279
    Abstract: Disclosed is a system for fabricating a liquid crystal display (LCD) using liquid crystal dropping (LC) and a method of fabricating an LCD using the same. The invention includes an LC forming line dropping LC on a first substrate, a sealant forming line forming sealant on a second substrate, a bonding and hardening line printing a sealant, bonding the substrates each other, and hardening the sealant, and an inspection process line cutting the bonded substrates into panel units and grinding and inspecting the unit panels. The present invention drops LC on a first substrate using a dispenser, forms a main UV hardening sealant on a second substrate, bonds the first and second substrates to each other in a vacuum state, UV-hardens the main UV hardening sealant, cuts the bonded substrates into cell units, grinds the cut substrates, and inspects the grinded substrates.
    Type: Grant
    Filed: June 28, 2002
    Date of Patent: November 13, 2007
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Yong Sang Byun, Moo Yeol Park, Sung Su Jung, Sung Chun Kang, Jong Woo Kim, Young Hun Ha, Sang Seok Lee, Sang Ho Park, Hun Jun Choo, Hyug Jin Kweon, Kyung Su Chae, Hae Joon Son, Sang Sun Shin, Jong Go Lim
  • Patent number: 7258894
    Abstract: A liquid crystal material dispensing apparatus includes a spacer height measuring unit for measuring a height of a spacer on a substrate, and a liquid crystal material dispensing system for determining an amount of the liquid crystal material to be dispensed on the substrate based upon the measured spacer height and for dispensing the liquid crystal material onto the substrate.
    Type: Grant
    Filed: March 21, 2003
    Date of Patent: August 21, 2007
    Assignee: L.G.Philips LCD Co., Ltd.
    Inventors: Wan-Soo Kim, Mu-Yeol Park, Sung-Su Jung, Hyug-Jin Kweon, Hae-Joon Son
  • Patent number: 7259802
    Abstract: A composite liquid crystal panel that interacts with an inspection station to simulate operating liquid crystal displays, and methods of fabricating and testing such liquid crystal panels. The composite liquid crystal panel enables the application of operating voltages to a plurality of unit liquid crystal panel areas. The inspection station provides operating power, illuminating light, and first and second polarizers. When power is applied to the composite liquid crystal panel an image is produced. That image will show defects in the unit liquid crystal panel areas. Beneficially, the inspection station tilts to enable easier problem identification.
    Type: Grant
    Filed: June 21, 2006
    Date of Patent: August 21, 2007
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Hyug Jin Kweon, Hae Joon Son, Wan Soo Kim
  • Patent number: 7252863
    Abstract: A rubbing method, i.e., a method of forming an alignment layer, of a liquid crystal display device includes providing a substrate, applying an alignment layer on the substrate, applying a magnetic field to the alignment layer by a magnetic field generator and firing the alignment layer.
    Type: Grant
    Filed: October 29, 2004
    Date of Patent: August 7, 2007
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Jae-Choon Ryu, Hae-Joon Son
  • Publication number: 20070151512
    Abstract: A sealant forming device, a sealant forming method and a method for manufacturing a liquid crystal display device using the same are disclosed. According to the present invention, a sealant coagulated in a nozzle can be minimized or prevented by performing an instantaneous suction process. A sealant forming device includes a dispenser including a syringe, and a nozzle connected to a lower end of the syringe to discharge a sealant therethrough; a dispensing tube connected to the syringe to apply a pressure to the syringe; and an instantaneous suction tube connected to the syringe to extract the sealant remaining in the nozzle after discharging the sealant.
    Type: Application
    Filed: June 30, 2006
    Publication date: July 5, 2007
    Applicant: LG.PHILIPS LCD CO., LTD.
    Inventors: Hae Joon Son, In Kyu Lee
  • Patent number: 7237579
    Abstract: A liquid crystal dispensing system includes a container for containing liquid crystal; a liquid crystal measuring sensor proximate the container; a discharge pump for pumping liquid crystal from the container, and a nozzle for dispensing liquid crystal discharged from the discharge pump onto a substrate. In an exemplary embodiment, the crystal dispensing system includes a control unit for controlling a discharge amount of liquid crystal discharged from the discharge pump and calculating and compensating a dispensing amount of liquid crystal based on an amount of measured liquid crystal in the container.
    Type: Grant
    Filed: April 25, 2005
    Date of Patent: July 3, 2007
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Joung-Ho Ryu, Soo-Min Kwak, Hae-Joon Son, Man-Ho An, Joon-Young Kim
  • Publication number: 20070101935
    Abstract: A liquid crystal material dispensing apparatus includes a spacer height measuring unit for measuring a height of a spacer on a substrate, and a liquid crystal material dispensing system for determining an amount of the liquid crystal material to be dispensed on the substrate based upon the measured spacer height and for dispensing the liquid crystal material onto the substrate.
    Type: Application
    Filed: November 17, 2006
    Publication date: May 10, 2007
    Inventors: Wan-Soo Kim, Mu-Yeol Park, Sung-Su Jung, Hyug-Jin Kweon, Hae-Joon Son
  • Patent number: 7196764
    Abstract: An LCD device and a method of manufacturing the same are disclosed, which prevents a liquid crystal from being filled imperfectly or excessively in an active region, thereby obtaining a uniform cell gap and improving picture quality characteristics. The LCD device includes a lower substrate and an upper substrate, a UV sealant between the lower and upper substrates, the UV sealant having a portion for controlling a liquid crystal flow at four corner regions, and a liquid crystal layer between the lower and upper substrates.
    Type: Grant
    Filed: June 28, 2002
    Date of Patent: March 27, 2007
    Assignee: LG. Philips LCD Co., Ltd.
    Inventors: Joung Ho Ryu, Hyug Jin Kweon, Hae Joon Son