HIGH-PRECISION COLOR FILTER HAVING EXCELLENT PROPERTIES AND METHOD OF PRODUCING THE SAME.

摘要

In a high precision color filter (14) having excellent properties of the present invention, a dye (4) is deposited in the pores (3) of an active membrane layer (2) composed of at least one of active alumina and active silica and formed on a transparent substrate (1), so that fine dot patterns, striped patterns or other desired patterns of a desired color can be formed on the same plane of said active membrane layer (2) and an over-coat layer (6) having no affinity with the dye (4) is formed further thereon. A step of forming the above-mentioned patterns in the production of the color filter (14) of the present invention comprises placing a metal mask having predetermined pattern holes on said active membrane layer (2), putting thereon a transfer sheet having an ink layer containing the dye (4) and heating the sheet in an atmosphere under a reduced pressure. In accordance with the present invention, a color filter (14) can be obtained which has excellent properties such as flatness, heat resistance, water-proofness or light resistance, and a fine pattern having excellent spectral characteristics of red, green and blue, and can be produced by a simple production process.