| 摘要 |
<p>PURPOSE:To improve the optical characteristics and the durability of the titled filter by coloring a noncolored part of the color filter with a specified disazo(complex salt) compd. CONSTITUTION:The plural number of pattern-wisely colored parts 14, 16 and 17 are formed on a substrate 1, and the noncolored part 15 existing between said colored parts is colored with the aqueous diazo compd. shown by formula I or its copper complex salt. In formula I, X is nitro or amino group, A is a group shown by formula II or III, Y is amino or methylamino group, etc., R1 is hydrogen atom or methoxy group, etc., R2 is hydrogen atom or methyl group, etc., R3 is hydrogen atom or ethoxy group, etc., (n) is 0 or 1. In the case of coloring the titled filter with the disazo compd. mentioned above, the filter which has the excellent color characteristics, suppressing the light scatter and the light reflection around the pattern, and also has the excellent durability against a heat and a light, is obtd.</p> |
