液晶滤色器用黄色颜料PY138的制备方法

Preparation of Pigment Yellow 13 8 for Color Filter application

液晶显示器用滤色片（CF）用三原色为红（R）、绿（G）以及蓝（B）。其中作为黄色用颜料，主要使用C．I．Pigment Yellow138，C．I．Pigment Yellow139以及C．I．PigmentYellow150。合成的粗品必须经过微细化以及稳定化的加工才可以作为液晶用有机颜料使用。

A color filter includes at least one blue filter segment （B）, at least one red filter segment （R）, and at least one green filter segment （G）. Pigment Yellow 138, 139 and 150 as yellow are mainly used for this industry. Synthesized crude （PYI38） must be micronized and stabilizing treated then it can be use for liquid crystal industry.