COATING DEVICE AND COATING METHOD AS WELL AS APPARATUS FOR PRODUCTION OF COLOR FILTER AND ITS PRODUCTION

摘要

PROBLEM TO BE SOLVED: To prevent the coating film formed on the front surface of a member to be coated from largely protruding from the discharge width of a discharge port and to make the film thickness of the coating film uniform in a transverse direction by disposing limiting means for limiting the discharge area of a coating liquid within a regulated discharge width between both ends of the discharge port. SOLUTION: A manifold 62 is formed in the central part in a slit die 40 and is always connected via an inside passage to a coating liquid supplying hose. A slit 64 extends perpendicularly downward from this manifold 62. This slit 64 opens to the rear surface of a slit die 40. In such a case, upward facing slopes 70 communicating with both ends of the discharge port 66 and horizontal relief surfaces 72 respectively communicating with the top ends of these slopes 70 are formed on the rear surface of the slit die 40 and are functioned as the limiting means. Namely, the clearance therebetween larger than the clearance H is sufficiently largely assured to limit the occurrence of capillarity and to confine the film thickness of the coating film within the permissible range over the entire area in its transverse direction.