Patent ID: 8455040

Claim:
A method for fabricating an LCD device using a slit nozzle unit, the method comprising: providing a slit nozzle unit including a nozzle and a head to which the nozzle is mounted; supplying a coating solution to the slit nozzle through a supply apparatus, wherein the supply apparatus includes a storage tank configured to store the coating solution, a pump that supplies the coating solution stored in the storage tank to the slit nozzle unit through a first valve, a sealed buffer tank in fluid communication with the pump and the storage tank, a second valve connected between the buffer tank and the slit nozzle unit, a drain connected between the second valve and the buffer tank, a filter in fluid communication with the buffer tank and the pump, a third valve connected between the pump and the filter, a fourth valve connected between the buffer tank and a line coupling the first valve to the pump, and a fifth valve connected between the drain and the buffer tank; applying the coating solution onto an LCD substrate mounted on a table; removing bubbles within the nozzle through a bubble outlet formed at an upper end of the head of the slit nozzle unit; and removing bubbles within the pump and the filter through the drain in a state that the first and third valves are closed and the fourth and fifth valves are opened for a predetermined period of time.