Ink pattern printing apparatus, method of forming ink pattern using the printing apparatus and method of manufacturing liquid crystal display
View Patent ↗An ink pattern printing apparatus comprises a lower frame comprising a printing plate having at least one recess, and an upper frame comprising an ink supply device supplying ink onto the printing plate, a removing blade removing residual ink on an upper surface of the printing plate by releasing a pressurized gas through an exhaust port in the removing blade, and a transfer roller having a transfer sheet, wherein the transfer sheet receives transfer of ink from the at least one recess.
1. An ink pattern printing apparatus, comprising:
a lower frame comprising a printing plate having at least one recess; and
an upper frame comprising:
an ink supply device that supplies ink onto the printing plate for filling the at least one recess with the ink;
a removing blade that removes residual ink on an upper surface of the printing plate by releasing a pressurized gas through an exhaust port in the removing blade; and
a transfer roller having a transfer sheet, wherein the transfer sheet receives transfer of ink from the at least one recess,
wherein the removing blade further removes residual ink from the transfer roller by releasing the pressurized gas toward the transfer roller.
2. The ink pattern printing apparatus of claim 1 , further comprising a filling blade that supplies the ink onto the printing plate and into the at least one recess.
3. The ink pattern printing apparatus of claim 2 , wherein the filling blade moves in a first direction while contacting the ink on the printing plate, and the removing blade moves in the first direction from behind the filling blade.
4. The ink pattern printing apparatus of claim 3 , wherein the removing blade moves while maintaining a predetermined gap from the printing plate.
5. The ink pattern printing apparatus of claim 1 , wherein the removing blade comprises a thin end and a thick end to form a wedge shape.
6. The ink pattern printing apparatus of claim 5 , wherein the exhaust port comprises exhaust holes or lines at the thin end.
7. The ink pattern printing apparatus of claim 6 , wherein the exhaust port extends parallel to a bottom of the removing blade.
8. The ink pattern printing apparatus of claim 7 , wherein the removing blade moves parallel to the printing plate.
9. The ink pattern printing apparatus of claim 5 , wherein the removing blade further comprises a rotary shaft that is disposed near the thick end and rotates the removing blade.
10. The ink pattern printing apparatus of claim 1 , wherein the lower frame further comprises an ink collection tank that is disposed under the movement path of the removing blade and outside the printing plate.
11. The ink pattern printing apparatus of claim 10 , wherein the lower frame further comprises an elevator disposed below the ink collection tank to lift and lower the ink collection tank.
12. The ink pattern printing apparatus of claim 11 , wherein the upper frame further comprises an ink recycling device having a transport tube with an opened bottom facing the lower frame, the transport tube connecting the ink recycling device and the ink supply device.
13. The ink pattern printing apparatus of claim 1 , further comprising a cleaning unit disposed above the upper frame, wherein the cleaning unit comprises a rotary roller and a cleaning cloth.