Method of forming concave-convex pattern and use of the method in the production of color filters for liquid crystal displays

A method for forming a concave-convex pattern, comprising:

• the first step of forming a photosensitive resin layer comprising a thermosetting resin and a negative-working photosensitive resin on a substrate and then heat treating the photosensitive resin layer in such a manner that at least a part of the thermosetting resin is cured;
• the second step of exposing the photosensitive resin layer through a photomask having a desired opening pattern;
• and
• the third step of developing and curing the photosensitive resin layer to form a concave-convex pattern consisting of convexes corresponding to the regions exposed in accordance with said opening pattern and concaves corresponding to the non-exposed regions.

A color filter for liquid crystal displays, comprising:

• a substrate;
• a colored layer of a plurality of predetermined color patterns on the substrate;
• a transparent protective layer provided so as to cover at least the colored layer;
• and transparent columnar convexes which are provided on the substrate in its plurality of predetermined portions and are protruded from the transparent protective layer, the transparent protective layer being composed mainly of an alkali-insoluble resin, the columnar convexes being composed mainly of a cured negative-working photosensitive resin.

A color filter for liquid crystal displays, comprising:

• a substrate;
• a colored layer of a plurality of predetermined color patterns on the substrate;
• a transparent protective layer provided so as to cover at least the colored layer;
• and transparent columnar convexes which are provided on the substrate in its plurality of predetermined portions and are protruded from the transparent protective layer, the transparent protective layer being composed mainly of a thermosetting resin, the columnar convexes being composed mainly of a cured negative-working photosensitive resin.