Patent ID: 8187777

Claim:
A method for manufacturing a patterned layer on a substrate, the substrate defining an array of cells, comprising the steps of: mounting a print head unit to an ink-jet device, wherein the print head unit comprises at least two side print heads and one central print head disposed between the side print heads, the side print heads and the central print head each comprises a nozzle line with a plurality of nozzles arranged in a line, the side print heads and the central print head are arranged in a manner that all the print heads are rotatable about a rotating axis of the print head unit and the nozzle line of the central print head crosses the rotating axis; rotationally moving at least one of the side print heads relative to the central print head to attain parallelism between the side print heads and the central print head; rotating the print head unit an angle around the rotating axis perpendicular to the substrate; linearly moving the side print heads in the nozzle line direction to correspond to pitches of the nozzles of the side print heads and that of cells on the substrate; depositing ink into the cells on the substrate; and solidifying the ink so as to form a patterned layer on the substrate.