Liquid crystal dispensing system and method of dispensing liquid crystal material using same
AssigneeLG Display Co., Ltd.
InventorsJoung-Ho Ryu, Soo-Min Kwak, Hae-Joon Son, Man-Ho An, Joon-Young Kim, Do-Hyun Ryu, Seung-Soo Lee
Life of this patent
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Abstract
A liquid crystal dispensing system includes a container to contain liquid crystal to be dispensed, a discharge pump to receive the liquid crystal from the container and to discharge the liquid crystal, a nozzle to dispense the liquid crystal discharged from the discharge pump onto a substrate, and a control unit to control a dispensing amount of liquid crystal discharged from the discharge pump and to compensate the dispensing amount when the dispensing amount of liquid crystal exceeds a limitation value.
Claims10
A liquid crystal dispensing system, comprising:
- a plurality of dispensers to dispense liquid crystal onto a substrate defining a plurality of unit panels;
- a dispensing amount calculation unit configured to calculate a preset dispensing amount of liquid crystal;
- and
- a control unit configured to control a dispensing amount of liquid crystal dispensed from the plurality of dispensers, the control unit that compensates the dispensing amount when the dispensing amount of liquid crystal exceeds a first limitation value, and that stops dispensing the liquid crystal when the dispensing amount of liquid crystal exceeds a second limitation value based on a differential value between the preset dispensing amount of liquid crystal and a substantial measured dispensing amount onto the substrate with the first limitation value being smaller than the second limitation value,
- wherein the dispensing amount calculation unit calculates the preset dispensing amount of liquid crystal based on a number of input panels on a substrate, a size of the input panels, and a cell gap of the input panels.
Dependencies are inferred from the claim text.