Colorant dispersion liquid, colored resin composition, color filter and liquid crystal display
A technology of resin composition and dispersion liquid, applied in the direction of optical filter, organic dye, pigment slurry, etc., can solve the problems of reduced curability, reduced pixel surface smoothness, influence, etc., achieves excellent adhesion, inhibits drying agglomeration effect
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[0367] [2-6] Preparation of coloring composition
[0368] Next, a specific example of the production method of the colored resin composition of the present invention will be described.
[0369] In the colorant dispersion obtained by the dispersion treatment described in [1-5] above, a solvent, a binder resin, a polyfunctional monomer, a photopolymerization initiator component, and other components mixed as necessary are mixed to prepare into a uniform dispersed solution. In addition, since fine impurities may be mixed in each step of the dispersion treatment step and the mixing step, it is preferable to filter the obtained colored resin composition through a filter.
[0370] [3] Manufacture of color filters
[0371] Next, a specific example of the manufacturing method of the color filter of the present invention will be described.
[0372] Color filters are manufactured by placing a black matrix on a transparent substrate, and then forming red, green, and blue pixel images ...
Embodiment 1~6 and comparative example 1~6
[0419] [1] (a) Synthesis of nitrogen-atom-containing graft copolymers or acrylic block copolymers (dispersants A to C)
Synthetic example 1
[0420] [1-1] Synthesis Example 1: Synthesis of Dispersant A
[0421] Mix 50 parts by weight of polyethyleneimine with a molecular weight of about 5000 and 40 parts by weight of polycaprolactone with n=5 and 300 parts by weight of propylene glycol monomethyl ether acetate, and stir at 150 ° C under a nitrogen atmosphere 3 hours. The dispersant thus synthesized had a weight average molecular weight Mw of about 9,000 as measured by GPC.
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