专利汇可以提供Color mosaic filter专利检索,专利查询,专利分析的服务。并且PURPOSE: To obtain a color filter having good spectral characteristics by incorporating pyrazoloazole type cyan couplers having electron-withdrawing groups and/or hydrogen bondable groups in substitutable positions except at active points into a color developing soln.
CONSTITUTION: ≥2 Kinds of the couplers which impart different hues are incorporated into the color developing soln. At least one of the pyrazoloazole compds. having at least one electron-withdrawing groups and/or hydrogen bondable groups in the substitutable positions except at the active points are used as the cyan couplers. Since the dye obtainable from such cyan coupler has less absorption of the blue part and green part and, therefore, the color filter which is increased in the transmittance of the blue part and green part is obtainable. Since the color developing soln. contg. one kind of developing agent is used for ≥2 kinds of the couplers, the chromatic part having no color clouding is formed without complicating the color forming reaction. The spectral characteristics of the resulted color filter are thus improved.
COPYRIGHT: (C)1989,JPO&Japio,下面是Color mosaic filter专利的具体信息内容。
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