Lg Philips Lcd Co., Inc.

Lg Display Co., Ltd.

Top Engineering Company

Hyug-Jin Kweon

Hae-Joon Son

Wan-Soo Kim

Joung-Ho Ryu

Man-Ho An

Joon-Young Kim

Kyu-Yong Bang

Yong-Kyu Seo

Sung-Su Jung

Mu-Yeol Park

Young-Hun Jeung

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.

Apparatus and method for dispensing liquid crystal material

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.

Liquid crystal dispensing apparatus having integrated needle sheet

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. Variations and errors in the dropping amount may also be compensated by an automated compensation of the electric power to the solenoid and/or the gas pressure.

Apparatus for dispensing liquid crystal and method for controlling liquid crystal dropping amount

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 liquid crystal material dispensable onto a substrate, the a liquid crystal dispensing unit including a liquid crystal container for containing the dispensable liquid crystal material and for receiving supplied gas, an upper cap secured to the liquid crystal container, a nozzle arranged at a lower portion of the liquid crystal container through which the liquid crystal material is dispensable, and a valve structure for allowing liquid crystal material contained within the liquid crystal container to enter the nozzle via a pressure from the supplied gas; and a weight measuring unit coupled to the liquid crystal dispensing unit for determining a weight of an amount of liquid crystal material remaining within the liquid crystal dispensing unit, wherein the weight measuring unit installed at the lower surface of the upper cap.

Liquid crystal dispensing apparatus having confirming function for remaining amount of liquid crystal and method for measuring the same

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.

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.

Liquid crystal dispensing apparatus with nozzle cleaning device

A liquid crystal dispensing apparatus dispenses liquid crystal onto a substrate. The apparatus includes a liquid crystal container and a nozzle. The liquid crystal container contains the liquid crystal to be dispensed onto the substrate, and the nozzle is disposed on a lower portion of the liquid crystal container. The nozzle has a main body portion, a discharging portion that projects from a lower surface of the main body portion to dispense liquid crystal, and a protecting portion that projects from the lower surface of the main body portion to protect the dispensing portion. The protecting portion projects from the lower surface of the main body portion at least as much as the discharging portion.

Liquid crystal dispensing apparatus with nozzle protecting device

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.

Apparatus and method for dispensing liquid crystal

A liquid crystal dispensing apparatus having a multipart, separable needle that can be easily repaired should the needle becomes distorted or damaged.

Liquid crystal dispensing apparatus

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.

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 dispensing unit.

A liquid crystal dispensing apparatus includes a liquid crystal material container, a nozzle positioned at a lower portion of the liquid crystal container and having at least one groove formed at an exterior surface thereof, and a valve system for transmitting liquid crystal material from the liquid crystal material container to the nozzle by a gas pressure supplied to the liquid crystal material container.

Growing community of inventors

Kyoungsangbuk-do, South Korea

Hyug-Jin Kweon