Patent ID: 7770516

Claim:
A patterning apparatus comprising: a stage; a substrate loaded on the stage; a printing plate positioned on the stage; a printing unit that prints a printing material patterned by a predetermined pattern of the printing plate on the substrate; and a removing unit having a film that removes the unused printing material of the printing plate; wherein the printing unit comprises: a rotatable printing roller; a blanket, being adhered to the printing roller, wherein the blanket prints the printing material on the substrate; and a nozzle that coats the printing material on the blanket; wherein the removing unit comprises: first and second rollers arranged in parallel, wherein the first roller rotates on its own axis without rolling and the second roller rotates on its own axis and rolls away from the first roller so that the film is unwound from the first and the second rollers and the first roller rotates on its own axis without rolling and rotating the second roller on its own axis toward the first roller so that the film is wound on the first and the second rollers; a first heating part that maintains the first roller at a constant temperature and provided inside the first roller; a second heating part that maintains the second roller at a constant temperature and provided inside the second roller; and the film being wound on the first and second rollers, wherein a surface of the film coming in contact with the printing plate has an adhesive strength.