Patent ID: 6244702
Filing Date: 2001-06-12
Classification: B41J,G02B

Abstract:
A color filter producing apparatus for forming a color filter on a substrate by drawing with ink jets, comprising:at least one set of drawing heads for discharging ink of three colors of red, green and blue;distance detection means for detecting a distance in a Z-direction between at least one point on said substrate and said set of drawing heads;reaching position detecting means for detecting a reaching position on said substrate of each of said ink jets discharged from said set of drawing heads;alignment error detecting means for detecting an error of alignment between said substrate and said set of drawing heads in an XY-plane perpendicular to said Z-direction; andadjustment means for adjusting a distance between said substrate and said set of drawing heads in said Z-direction based on said detected distance by said distance detection means, and adjusting alignment between said substrate and said set of drawing heads in said XY-plane based on said detected reaching position by said reaching position detecting means and said detected alignment error by said alignment error detecting means.