Patent ID: 6610364
Filing Date: 2003-08-26
Classification: B05C,G02F

Abstract:
A liquid crystal dispensing apparatus for dropping liquid crystal onto a substrate corresponding to at least one unit panel area, the apparatus comprising:a liquid crystal dispensing unit to dispense liquid crystal, the liquid crystal dispensing unit including: 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; an electric power supply unit to provide electric power to the solenoid coil to move the needle to the up position; a gas supply unit to provide a gas pressure to the liquid crystal dispensing unit to drive the liquid crystal through the discharging hole when the needle is in the up position; and a control unit to calculate a dropping amount of the liquid crystal to be dropped on the substrate and to control the electric power supply unit and the gas supply unit such that the calculated dropping amount of the liquid crystal is dispensed onto the substrate.