Patent ID: 9724916
Date: 2017-08-08
CPC Classifications: B41J,B82Y,G01B,G03F

Claim:
1. An ejection volume correction method for an inkjet head, comprising: an arranging step of ejecting a volume of functional ink as ink droplets from nozzles of an inkjet head so as to discretely arrange the ink droplets on a front surface of a substrate; a contacting step of filling the functional ink in between a mold and the substrate by causing the mold to contact the ink droplets arranged on the front surface of the substrate; a curing step of curing the filled functional ink so as to generate a functional film; a separating step of separating the mold from the functional film; a measuring step of measuring a thickness of the functional film; and a correcting step of correcting an ejection volume from the nozzles based on the measured thickness such that the volume of functional ink ejected from the inkjet head remains uniform between the substrate and another substrate to thereby maintain a uniform thickness between the functional film on the substrate and another functional film on the another substrate, wherein: a surface of the mold configured to contact with the ink droplets has a plurality of flat regions surrounded by grooves; in the arranging step, the ink droplets are arranged by changing the ejection volume from the nozzles respectively in a plurality of regions on the front surface of the substrate that correspond respectively to the flat regions on the surface of the mold while avoiding arranging the ink droplets at positions on the front surface of the substrate that correspond to the grooves on the surface of the mold such that the grooves demarcate the ink droplets arranged in positions corresponding to one of the flat regions from the ink droplets arranged in positions corresponding to another of the flat regions; and in the measuring step, the thickness of the functional film is measured in each of the regions on the front surface of the substrate.