Method for fabricating liquid crystal display device
A method for fabricating a liquid crystal display device includes: forming alignment keys by at least one of ink jet printing, offset printing, screen printing and laser marking on a dummy region of an upper substrate; forming a first alignment film over an active region of the upper substrate; forming sealant along a periphery of the active region of the upper substrate; and bonding the upper substrate to a lower substrate.
1. A method for fabricating a liquid crystal display device comprising the steps of:
forming alignment keys on a dummy region of an upper substrate;
forming a first alignment film over an active region of the upper substrate;
forming sealant along a periphery of the active region of the upper substrate; and
bonding the upper substrate to a lower substrate;
wherein a distance between the sealant on the upper substrate and the first alignment film is approximately 0.5˜1 mm.
2. The method as claimed in claim 1 , wherein the lower substrate includes:
an active region having pixel regions defined therein;
RGB color layers in the pixel regions;
a light shielding film on a periphery of the active region of the lower substrate; and
a second alignment film on a part of the lower substrate opposite to the first alignment film on the upper substrate.
3. The method as claimed in claim 2 , wherein a distance between the sealant on the upper substrate and the second alignment film is approximately 0.5˜1 mm.
4. The method as claimed in claim 1 , wherein the alignment keys are at least one of an alignment film printing key, a bonding key, and a seal printing key.
5. The method as claimed in claim 1 , wherein forming the alignment keys has a precision at a level of 1 mm unit.
6. The method as claimed in claim 1 , wherein the alignment key is formed by ink jet printing.
7. The method as claimed in claim 6 , wherein forming alignment keys by ink jet printing includes dropping ink on desired parts of the dummy region of the upper substrate upon reception of a signal to dispense ink using an ink jet apparatus, wherein the ink jet apparatus has an ink jet head, a vertical head driver with a shaft for moving the ink jet head in up/down directions with respect to the upper substrate, and upper and lower head drivers for moving the ink jet head, and the vertical head driver in left and right directions.