PRODUCTION OF COLOR FILTER

摘要

PURPOSE:To stably obtain >=3 colors of picture elements without having light leakage and overlaps of the picture elements by utilizing the light shielding property of the existing picture elements to exposing light and covering unnecessary parts with a mask wider than picture element patterns. CONSTITUTION:A photosetting photoresist 2 dispersed with a black material is coated on a transparent base material 1 and is dried, then the coating is exposed by using the photomask 3 and is developed and cured to form a sample 5 having black parts 4 which are a 1st picture elements. The photoresist 6 dispersed with a 2nd color material (for example, a red pigment) is coated on this sample 5 in superposition thereon and is exposed through the mask 7 from the non-coated surface of the base material 2. The light transparent parts 7a of the mask 7 are formed to the width larger than the width of the picture element parts 6 where the picture element patterns are desired to be formed after exposing. The sample 9 having the picture elements 8 is formed by exposing the same to the developing and curing stages. The picture elements of the plural colors are thereafter formed by repeating the sample operations successively for blue and green colors. The light leakage and the overlaps of the picture elements are eliminated in this way.