IP Library › Granted Patent US 7,314,403
Granted Patent B2
US 7,314,403 · App. 11/640,234 · Granted Jan 1, 2008

Apparatus and method for fabricating liquid crystal display panel

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Quick Facts
Patent No.
US 7,314,403
App. No.
11/640,234
Granted
Jan 1, 2008
Kind
B2
Abstract

An apparatus and method for fabricating a liquid crystal display panel are disclosed. In case of the single mode that liquid crystal display panels are fabricated with the same size on a large glass substrate, unit liquid crystal display panels are kept and discarded not to proceed with a follow-up process. Thus, a material waste is restrained and a yield can be improved. Meanwhile, in case of the multi-mode that liquid crystal display panels are fabricated with difference sizes on a large glass substrate, sub-models are kept, and then after completing the process for the main models, a follow-up process if performed on the sub-models. Thus, use efficiency of the glass substrate can be maximized to improve a productivity and a unit cost of the product can be reduced.

Claims (19)

1. A method of manufacturing a liquid crystal display (LCD) device, comprising:

preparing a first substrate and a second substrate;

applying liquid crystal to one of the first and second substrate;

attaching the first and second substrates;

cutting the attached first and second substrates into a plurality of unit liquid crystal display panels;

sorting the unit liquid crystal display panels according to a predetermined criteria into at least a first sub-group and a second sub-group;

determining whether a cut unit liquid crystal display panel is non-defective or defective;

holding and discarding any defective unit liquid crystal display panels of the first sub-group or the second sub-group; and

subsequently processing the non-defective unit liquid crystal display panels of the first sub-group separately from the second sub-group.

2. The method of claim 1 , wherein the one of the first sub-group and the second sub-group having defects is buffered in a buffer cassette and discarded during the subsequent processing of the other of the first sub-group and the second sub-group.

3. The method of claim 1 , wherein the predetermined criteria include mode of the first and second substrates.

4. The method of claim 3 , wherein the first sub-group is stored in a buffering cassette when the second sub-group is subsequently processed.

5. The method of claim 3 , wherein the second sub-group is stored in a buffering cassette when the first sub-group is subsequently processed.

6. The method of claim 1 , wherein the subsequent processing includes grinding edges of the unit liquid crystal display panels.

7. The method of claim 2 , wherein the subsequent processing includes grinding edges of the unit liquid crystal display panels.

8. The method of claim 4 , wherein the subsequent processing includes grinding edges of the unit liquid crystal display panels.

9. The method of claim 5 , wherein the subsequent processing includes grinding edges of the unit liquid crystal display panels.

10. The method of claim 3 , wherein the unit liquid crystal display panels in a single mode have substantially the same size.

11. The method of claim 3 , wherein the unit liquid crystal display panels in a multi-mode have at least two different size.