Liquid crystal dispensing system which can read information of liquid crystal container and method of dispensing liquid crystal material using same

A liquid crystal dispensing method, comprising:

• loading a substrate having a code on a liquid crystal dispensing system the code including information of an area of the panel region, number of the panel region of the substrate, and a cell gap of the panel region;
• reading the code;
• setting a liquid crystal dispensing condition by reading the code;
• and
• operating a liquid crystal discharge pump to dispense liquid crystal onto the substrate.

A method of manufacturing a liquid crystal display device, the method comprising:

• providing a first substrate;
• dispensing liquid crystal from the liquid crystal dispensing system, the liquid crystal dispensing system including,
• a liquid crystal material container to contain liquid crystal, the liquid crystal material container provided with a first code having information of the liquid crystal;
• a reading unit to read the first code;
• a discharge pump having a liquid crystal capacity amount controlling member 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 having at least one panel region to be a liquid crystal display panel provided with a second code having information of the substrate an area of the panel region and a cell gap of the liquid crystal display panel,
• wherein the liquid crystal capacity amount controlling member controls an amount of liquid crystal to be discharged in accordance with the information of the liquid crystal and the substrate in first and second codes;
• and
• joining the first substrate with a second substrate.

A method of manufacturing a liquid crystal display device, the method comprising:

• providing a first substrate;
• dispensing liquid crystal from the liquid crystal dispensing system, the liquid crystal dispensing system including,
• a liquid crystal material container to contain liquid crystal;
• a discharge pump including a case, a cylinder, a piston inserted into the cylinder and provided with a groove at a lower portion thereof to draw in and discharge liquid crystal by rotating and moving up-down, and a suction opening and a discharge opening to respectively draw in and discharge liquid crystal as the piston moves;
• a first motor to drive the discharge pump;
• a nozzle installed at a lower portion of the discharge pump to dispensing liquid crystal from the discharge pump onto a substrate;
• and
• a reading unit to read substrate information recorded in a code formed at the substrate, the substrate information including an area of the panel region and a cell gap of the liquid crystal display panel;
• a control unit to set a dispensing amount of liquid crystal based on the substrate information read by the reading unit and to control a discharge amount of liquid crystal dispensed onto the substrate, the control unit including a dispensing amount setting unit to set a dispensing amount of liquid crystal to be dropped onto the substrate and a dispensing amount compensating unit to compensate a differential value between a dispensing amount of liquid crystal set by the dispensing amount setting unit and a substantial dispensing amount dispensed onto the substrate;
• and
• joining the first substrate with a second substrate.

A method for manufacturing a liquid crystal display(LCD) device, comprising:

• providing a first substrate having a code and a second substrate, the code including first information of an area of the panel region, number of the panel region of the substrate, and a cell gap of the panel region;
• reading the code;
• setting a dispensing condition of liquid crystal based on the first information of the code;
• dispensing liquid crystal on the first substrate using a dispenser according to the dispensing condition;
• and
• attaching the first and second substrate to each other.