Patent ID: 8747941

Claim:
A method of dispensing liquid crystal material, comprising: loading a substrate having a plurality of unit panels onto a stage; aligning a plurality of liquid crystal dispensers to the unit panels on the substrate, wherein a plurality of liquid crystal dispensers are coupled to a guide bar arranged over the substrate and wherein the aligning includes moving at least one of: the guide bar along a first direction over the loaded substrate, and the plurality of liquid crystal dispensers installed movably at the guide bar along a second direction over the loaded substrate, wherein the second direction is substantially perpendicular to the first direction; dispensing liquid crystal material from the plurality of liquid crystal dispensers onto the plurality of unit panels of the substrate by moving respectively the guide bar and the plurality of liquid crystal dispensers in the perpendicular direction each other; and unloading the substrate having the liquid crystal material dispensed thereon from the stage, wherein the liquid crystal dispensers include a liquid crystal material container for containing the liquid crystal material, a cylinder having a suction opening and a discharge opening, a piston rotatably arranged within the cylinder to draw the liquid crystal material in through the suction opening from the liquid crystal material container and for discharging the liquid crystal material out through the discharge opening, wherein the piston is fixed to a rotating member, and wherein the piston rotates within an interior space of the cylinder as the rotating member is rotated by a first motor to control a dispensed amount of the liquid crystal material, a groove arranged at a center region of a lower portion of the piston, a pad at the lower portion of the liquid crystal material container, a connecting tube having one end portion inserted to the suction opening of the cylinder, a pin formed at other end of the connection tube to be inserted to the pad for drawing the liquid crystal material from the liquid crystal material container to the cylinder therethrough, a bar-shaped member having a first end contacting the cylinder, and a second end connected to a rotational shaft connected to a second motor, wherein rotating the rotational shaft rotates the second end of the bar-shaped member along a linear axis of the rotational shaft to control a fixation angle between the cylinder and the rotating member, and a nozzle in fluid communication with the discharge pump for dispensing the discharged liquid crystal material, wherein the guide bar is moved in the second direction along a guide rail on the stage and the liquid crystal dispensers are moved along the guide bar so that the liquid crystal dispensers are respectively disposed at the dispensing positions, wherein the guide bar is moved by a third motor disposed to the guide bar and the plurality of liquid crystal dispensers are independently driven along one guide bar by a plurality of fourth motors disposed respectively to each liquid crystal dispenser.