Printing system and method for manufacturing liquid crystal display device using the same

1. A method for manufacturing an LCD device comprising:

(a) positioning a cliché plate and a first substrate on a moving rail;

(b) first, rolling a printing roller having a pattern material on the cliché plate wherein a portion of the pattern material is transcribed on the cliché plate and a portion of the pattern material remains on the printing roller; then, rolling the printing roller having the remaining portion of the pattern material on the first substrate wherein the remaining portion of the pattern material is transcribed on the first substrate;

(c) cleaning the cliché plate after transcribing the remaining portion of the pattern material on the first substrate;

(d) forming a light-shielding layer on the first substrate;

(e) forming a color filter layer on the first substrate including the light-shielding layer;

(f) preparing a second substrate; and

(g) forming a liquid crystal layer between the first and second substrates, wherein at least one of the processes of forming the light-shielding layer on the first substrate, and forming the color filter layer on the first substrate including the light-shielding layer is performed using steps (a)-(c),

wherein the step of the cleaning the cliché plate is performed by using a cleaning unit including a cleaning part that moves to the cliché plate for cleaning and a container for accommodating a new cliché plate and the cleaned cliché plate.

2. The method of claim 1 , wherein the process of preparing the second substrate includes steps of:

forming gate and data lines that cross each other on the second substrate, to define pixel regions;

forming a thin film transistor adjacent to a crossing area of the gate and data lines;

forming a passivation layer on the first substrate including the thin film transistor; and

forming a pixel electrode on the passivation layer, the pixel electrode connected with a drain electrode of the thin film transistor, wherein the process of the preparing the second substrate is performed with the printing system.

3. The method of claim 1 , wherein the process of forming the liquid crystal layer between the first and second substrates includes steps of:

forming a sealant that has no inlet to any one of the first and second substrates;

dispensing an appropriate amount of liquid crystal to the substrate that has the sealant; and

bonding the two substrates to each other.

4. The method of claim 1 , wherein the process of forming the liquid crystal layer between the first and second substrates includes steps of:

forming a sealant that has an inlet to any one of the first and second substrates;

bonding the two substrates to each other; and

injecting liquid crystal to a space between the first and second substrates.

5. The method of claim 1 , wherein the cleaning part moves onto the moving rail and cleans the cliché plate.

6. The method of claim 5 , wherein the cliché plate, the substrate and the cleaning unit are sequentially arranged in line.

7. The method of claim 5 , wherein the substrate, the cliché plate and the cleaning unit are sequentially arranged in line.

8. The method of claim 5 , wherein the cleaning part is provided outside the moving rail.

9. The method of claim 8 , wherein the cliché plate and the substrate are sequentially arranged in line.

10. The method of claim 8 , wherein the substrate and the cliché plate are sequentially arranged in line.

11. The method of claim 8 , wherein the cleaning part is positioned at a lateral side of the cliché plate outside the moving rail.

12. The method of claim 5 , wherein the cleaning part includes a cleaning solution sprayer and a dryer.

13. The method of claim 1 , wherein the cleaning unit is positioned outside the moving rail.

14. The method of claim 13 , wherein the cliché plate and the substrate are sequentially arranged in line.

15. The method of claim 13 , wherein the substrate and the cliché plate are sequentially arranged in line.

16. The method of claim 13 , wherein the cleaning unit is positioned at a lateral side of the cliché plate outside the moving rail.

17. The method of claim 1 , wherein the cleaning unit includes a cleaning solution sprayer and a dryer.

18. The method of claim 1 , wherein the cleaning unit includes a transporter that transports the cliché plate.