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: 9285614
    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: April 22, 2014
    Date of Patent: March 15, 2016
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Joung-Ho Ryu, Soo-Min Kwak, Hae-Joon Son, Man-Ho An, Joon-Young Kim, Do-Hyun Ryu, Seung-Soo Lee
  • Patent number: 8899175
    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: November 17, 2006
    Date of Patent: December 2, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Wan-Soo Kim, Mu-Yeol Park, Sung-Su Jung, Hyug-Jin Kweon, Hae-Joon Son
  • Publication number: 20140238297
    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: April 22, 2014
    Publication date: August 28, 2014
    Applicant: LG Display Co., Ltd.
    Inventors: Joung-Ho RYU, Soo-Min KWAK, Hae-Joon SON, Man-Ho AN, Joon-Young KIM, Do-Hyun RYU, Seung-Soo LEE
  • Patent number: 8747941
    Abstract: A liquid crystal dispensing method includes loading a substrate onto a stage, aligning at least one liquid crystal dispenser coupled to a guide bar with a dispensing position on the substrate, dispensing liquid crystal material onto the substrate, and unloading the substrate from the stage.
    Type: Grant
    Filed: December 17, 2004
    Date of Patent: June 10, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Soo-Min Kwak, Hae-Joon Son
  • Patent number: 8714106
    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: August 5, 2010
    Date of Patent: May 6, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Joung-Ho Ryu, Soo-Min Kwak, Hae-Joon Son, Man-Ho An, Joon-Young Kim, Do-Hyun Ryu, Seung-Soo Lee
  • Patent number: 8176949
    Abstract: A liquid crystal dispensing system includes a frame, a stage coupled to the frame; at least one liquid crystal dispenser moveably coupled the frame over the stage, and at least one measurement member operatively coupled to the liquid crystal dispenser, wherein the at least measurement member detecting an amount of liquid crystal material dispensed from the at least one liquid crystal dispenser.
    Type: Grant
    Filed: July 16, 2010
    Date of Patent: May 15, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Soo-Min Kwak, Hae-Joon Son
  • Patent number: 8052013
    Abstract: A liquid crystal dispensing apparatus includes a needle sheet formed as a unitary piece for dispensing liquid crystal material contained within a liquid crystal container through a nozzle by selectively contacting a needle. The needle sheet includes a needle contacting portion for contacting the needle and a coupling portion for coupling the liquid crystal container to the nozzle. Therefore liquid crystal material is prevented from remaining within the needle sheet and the needle sheet can be easily cleaned.
    Type: Grant
    Filed: February 3, 2005
    Date of Patent: November 8, 2011
    Assignee: LG Display Co., Ltd.
    Inventors: Hyug-Jin Kweon, Hae-Joon Son
  • Publication number: 20100300354
    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: August 5, 2010
    Publication date: December 2, 2010
    Inventors: Joung Ho RYU, Soo-Min Kwak, Hae-Joon Son, Man-Ho An, Joon-Young Kim, Do-Hyun Ryu, Seung-Soo Lee
  • Publication number: 20100276032
    Abstract: A liquid crystal dispensing system includes a frame, a stage coupled to the frame; at least one liquid crystal dispenser moveably coupled the frame over the stage, and at least one measurement member operatively coupled to the liquid crystal dispenser, wherein the at least measurement member detecting an amount of liquid crystal material dispensed from the at least one liquid crystal dispenser.
    Type: Application
    Filed: July 16, 2010
    Publication date: November 4, 2010
    Inventors: Soo-Min Kwak, Hae-Joon Son
  • Patent number: 7785655
    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: December 4, 2007
    Date of Patent: August 31, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Joung-Ho Ryu, Soo-Min Kwak, Hae-Joon Son, Man-Ho An, Joon-Young Kim, Do-Hyun Ryu, Seung-Soo Lee
  • Patent number: 7775244
    Abstract: A liquid crystal dispensing system includes a frame, a stage coupled to the frame; at least one liquid crystal dispenser moveably coupled the frame over the stage, and at least one measurement member operatively coupled to the liquid crystal dispenser, wherein the at least measurement member detecting an amount of liquid crystal material dispensed from the at least one liquid crystal dispenser.
    Type: Grant
    Filed: December 17, 2004
    Date of Patent: August 17, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Soo-Min Kwak, Hae-Joon Son
  • Publication number: 20100200114
    Abstract: A dispenser for a liquid crystal display panel includes a table for loading a substrate having at least one image display unit and being horizontally driven in a driving direction of a long side or a short side of the substrate, at least one support member to be horizontally driven in a driving direction perpendicular to the driving direction of the table, and at least one syringe aligned on the support member to supply a dispensing material to the substrate.
    Type: Application
    Filed: April 23, 2010
    Publication date: August 12, 2010
    Inventors: Soo-Min KWAK, Hae-Joon Son
  • Patent number: 7745741
    Abstract: A liquid crystal dispensing apparatus determines an amount of liquid crystal remaining within a liquid crystal container.
    Type: Grant
    Filed: November 2, 2007
    Date of Patent: June 29, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Hyug-Jin Kweon, Hae-Joon Son, Wan-Soo Kim
  • Patent number: 7732004
    Abstract: A dispenser for a liquid crystal display panel includes a table for loading a substrate having at least one image display unit and being horizontally driven in a driving direction of a long side or a short side of the substrate, at least one support member to be horizontally driven in a driving direction perpendicular to the driving direction of the table, and at least one syringe aligned on the support member to supply a dispensing material to the substrate.
    Type: Grant
    Filed: November 19, 2004
    Date of Patent: June 8, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Soo-Min Kwak, Hae-Joon Son
  • Patent number: 7731059
    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 17, 2006
    Date of Patent: June 8, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Hyug-Jin Kweon, Hae-Joon Son, Wan-Soo Kim
  • Patent number: 7678212
    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: December 6, 2005
    Date of Patent: March 16, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Joung-Ho Ryu, Soo-Min Kwak, Hae-Joon Son
  • Patent number: 7659963
    Abstract: A liquid crystal dispensing apparatus includes a liquid crystal dispensing means and a nozzle cleaning means. The liquid crystal dispensing means includes a liquid crystal container for containing liquid crystal material and a nozzle through which the liquid crystal material may be dispensed on a substrate. The nozzle cleaning means is arranged around the nozzle and removes liquid crystal residue accumulated on a surface of the nozzle, moves to a lower portion of the nozzle to suck and remove the liquid crystal residue after liquid crystal material is dispensed by the liquid crystal dispensing means a predetermined number of times.
    Type: Grant
    Filed: December 27, 2002
    Date of Patent: February 9, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Hyug-Jin Kweon, Hae-Joon Son
  • Publication number: 20090258563
    Abstract: A liquid crystal dispensing system includes a frame, a stage coupled to the frame; at least one liquid crystal dispenser moveably coupled the frame over the stage, and at least one measurement member operatively coupled to the liquid crystal dispenser, wherein the at least measurement member detecting an amount of liquid crystal material dispensed from the at least one liquid crystal dispenser.
    Type: Application
    Filed: December 17, 2004
    Publication date: October 15, 2009
    Inventors: Soo-Min Kwak, Hae-Joon Son
  • Patent number: 7419548
    Abstract: A liquid crystal dispensing apparatus includes a container to contain liquid crystal, a discharge pump, and a nozzle to dispense liquid crystal from the discharge pump onto a substrate. The discharge pump has a separably formed case, a cylinder received in the case, a piston inserted into the cylinder and having a groove at a lower portion such that the piston draws in and discharges liquid crystal by rotating and moving up-down, and a suction opening and a discharge opening through which liquid crystal is to be respectively drawn in and discharged as the piston is moved.
    Type: Grant
    Filed: June 24, 2004
    Date of Patent: September 2, 2008
    Assignee: LG Display Co., Ltd.
    Inventors: Jae-Gyu Jeong, Soo-Min Kwak, Hae-Joon Son
  • Patent number: RE42372
    Abstract: A liquid crystal dispensing apparatus and a method of controlling a liquid crystal dropping amount are provided to drop liquid crystal onto a substrate corresponding to at least one unit panel area. In one aspect, the apparatus uses a liquid crystal dispensing unit to dispense liquid crystal. The liquid crystal dispensing unit includes a nozzle having a discharging hole through which the liquid crystal is dropped onto the substrate, a needle moveable between a down position in which the needle blocks the discharging hole and an up position in which the needle is separated from the discharging hole, a spring member to bias the needle toward the down position, and a solenoid coil to provide a magnetic force to move the needle to the up position. The dropping amount liquid crystal dispensing unit may be electrically controlled by controlling the solenoid coil or by controlling a gas pressure used to drive the liquid crystal through the discharging hole.
    Type: Grant
    Filed: August 25, 2005
    Date of Patent: May 17, 2011
    Assignee: LG Display Co., Ltd.
    Inventors: Hyug-Jin Kweon, Hae-Joon Son