A display element for displaying full colors, having two colored layers including an upper colored layer and a lower colored layer which are laminated with each other, wherein the upper colored layer has two upper colored regions which are arranged optically in parallel to each other, the upper colored regions each containing a dye to display a different hue, and the lower colored layer has two lower colored regions which are arranged optically in parallel to each other, the lower colored regions each containing a dye to display a different hue.
[EN] PRIMARY AMINE COMPOUND- OR SECONDARY AMINE COMPOUND-ACIDIC POLYSACCHARIDE CONJUGATE, AND METHOD FOR PRODUCING SAME<br/>[FR] CONJUGUÉ POLYSACCHARIDE ACIDE-COMPOSÉ AMINE PRIMAIRE OU COMPOSÉ AMINE SECONDAIRE, ET SON PROCÉDÉ DE PRODUCTION<br/>[JA] 第1級アミン化合物又は第2級アミン化合物-酸性多糖コンジュゲートとその製造方法