Patent ID: 6866972

Claim:
A color layer forming method for forming a color layer composed of a plurality of colored resists, comprising: a first step of forming a first colored resist pattern on a substrate by coating the substrate with a first colored resist, exposing the first colored resist to print the first colored resist pattern and developing the first colored resist; a second step of hardening only a surface portion of said first colored resist pattern by irradiating said surface portion with light; a third step of thermally curing a surface portion of said first colored resist pattern on the side of said substrate by heating said surface portion; and a baking step of baking the first colored resist pattern formed on said substrate in a last step, temperature in the baking step being higher than temperature used in the third step such that the whole portion of the first colored resist pattern having the hardened surface portions are simultaneously hardened, wherein said first step is performed for each of the plurality of colored resists and said second and third steps are performed for each colored resist except a last colored resist formed in said color layer.