Black dispersion liquid composition as well as preparation method and application thereof

The invention belongs to the technical field of display materials, and relates to a black dispersion liquid composition and a preparation method and application thereof.The black dispersion liquid composition comprises a component A and a component B. The component A comprises, by weight, 20-25 parts of carbon black; 3-20 parts of acrylic resin or 3-10 parts of fluorene resin; 3-10 parts of a dispersant; 54 to 69 parts of a solvent; the component B comprises 10-15 parts of cesium tungsten powder; 3-16 parts of acrylic resin or 3-8 parts of fluorene resin; 3-8 parts of a dispersant; 70 to 80 parts of a solvent; the weight ratio of the component A to the component B is (10-25): 1. The carbon black dispersion liquid and the cesium tungsten dispersion liquid are compounded into the black dispersion liquid, and the black dispersion liquid is matched with the mother liquor to form the film through coating, so that the film layer has the characteristics of high resistance and low reflectivity; the black dispersion l