the invention relates to a color filter layer of a cholesterically ordered material , in which the axis of the molecular helix is directed perpendicularly to said layer . according to the invention , the color filter layer comprises at least one dye which is able to absorb undesired colors caused by color shifts . a correct choice of the bandwidth of the primary colors of the color filter layer and the dyes significantly alleviates the problem of undesired color shift . the invention also relates to a liquid crystal color display device of the reflective type , which is provided with such a color filter layer .