Color filter

A color filter having a thickness of up to 3 .mu.m comprising a substrate and at least two color filter elements which have different colors from each other formed on said substrate, and wherein a color filter element is made from a resist composition comprised of an alkyl soluble resin, dyes having a specific color within the wave length range of from 400 nm to 700 nm, said dyes selected from the group consisting of:

• a dye represented by the following formula (I)
• B--A--M (I)
• wherein M represents a group represented by the following formula ##STR28## wherein R.sub.1 -R.sub.3 each independently represents a hydrogen atom, a halogen atom, --SO.sub.3 M.sup.1 or --SO.sub.2 --NH--R provided that at least one of R.sub.1 -R.sub.3 is SO.sub.2 --NHR, M' represents an alkali metal atom, a quaternary alkyl ammonium salt or a hydrogen atom and R represents an alkyl, cyclohexylalkyl, alkylcarbonylaminoalkyl, alkoxy, alkoxyalkyl, aryl, aralkyl or cyclohexylalkyl group which may be substituted, A represents a crosslinking group represented by one of the following formulae ##STR29## wherein R.sub.4 -R.sub.12 each independently represents a hydrogen atom, a halogen atom, a methyl group, --SO.sub.3 M' or --SO.sub.2 --NH--R, M' is as defined above, and B is M or a group represented by one of the following formulae ##STR30## a dye represented by the following formula ##STR31## wherein R.sub.13 -R.sub.16 each independently represents a hydrogen atom, an alkyl or aryl group which may be substituted, R.sub.17 -R.sub.19 each independently represents a hydrogen atom, an alkyl group, an aryl group, --SO.sub.3 M' or --SO.sub.2 --NH--R provided that at least one of R.sub.17 -R.sub.19 is --SO.sub.2 --NH--R and M' and R are as defined above;
• and
• a dye represented by the following formula ##STR32## wherein Pc represents a phthalocyanine nucleus, h and i each independently represents a mean substitution number of --SO.sub.3 M' and --SO.sub.2 --NH--R respectively, M' and R are as defined above provided that h+i.ltoreq.4, h.ltoreq.3 and l.ltoreq.i.ltoreq.4, and
• a crosslinking agent which is at least one member selected from the group consisting of:
• compounds represented by the formula:
• ##STR33## wherein Z represents --NH.sub.1 'R.sub.2 ' or phenyl, R.sub.1,-R.sub.6 each independently represents a hydrogen atom, --(CH.sub.2).sub.s OH or --(CH.sub.2).sub.s OR.sub.o, and at least one of R.sub.1 '-R.sub.6 ' is --(CH.sub.2).sub.s OH or --(CH.sub.2).sub.s OR.sub.o, R.sub.o represents a lower alkyl group, and s represents an integer from 1 to 4, and
• compounds represented by the following formulae ##STR34## wherein each of the color filter elements has a minimum light transmittance of up to 25%.