Patent ID: 9664827
Date: 2017-05-30
CPC Classifications: G02B,H01L

Claim:
1. A method of producing a color filter comprising (A) a step of forming a first colored layer comprising a first colored composition and (B) a step of patterning with dry etching so as to form a through-hole group in the first colored layer, wherein: the first colored composition is a colored composition for forming a green color filter, comprising a color pigment, wherein the content of the color pigment to the total solids content of the colored composition is 60% by weight or more, and a layer having a thickness of 0.6 μm formed from the colored composition has light transmittance of 80% or more at a wavelength of 550 nm and light transmittance of 50% or less at a wavelength of 450 nm; and the through-hole group comprises a first through-hole part group and a second through-hole part group and the method further comprises (C) a step of stacking a second colored radiation-sensitive layer comprising a second colored radiation-sensitive composition on the first colored layer so as that an inside of each through-hole of the first through-hole part group and second through-hole part group is filled with the second colored radiation-sensitive composition to form a plurality of second colored pixels, (D) a step of exposing a position of the second colored radiation-sensitive layer corresponding to the first through-hole part group provided in the first colored layer to cure the second colored radiation-sensitive layer, and removing an unexposed portion of the second colored radiation-sensitive layer and the plurality of second colored pixels formed in the inside of each through-hole of the second through-hole part group provided in the first colored layer with development, (E) a step of stacking a third colored radiation-sensitive layer comprising a third colored radiation-sensitive composition on the first colored layer so as that an inside of each through-hole of the second through-hole part group is filled with the third colored radiation-sensitive composition to form a plurality of third colored pixels, and (F) a step of exposing a position of the third colored radiation-sensitive layer corresponding to the second through-hole part group provided in the first colored layer to cure the third colored radiation-sensitive layer, and removing an unexposed portion of the third colored radiation-sensitive layer with development.