Color filter composition
View Patent ↗A color filter composition is provided. The color filter composition according to an exemplary embodiment includes a colorant A including a pigment or a dye, a binder resin B, an initiator C, and an assistance colorant D, wherein the initiator absorbs light of an ultraviolet wavelength, and the assistance colorant has a transmittance of more than 60% between about wavelengths 300 nm to 400 nm.
1. A color filter composition comprising: a colorant A including a pigment or a dye, a binder resin B, an initiator C, and an assistance colorant D is selected from the group consisting of Chemical Formula 1, Chemical Formula 2, and Chemical Formula 3;
in Chemical Formula 1, R and R1 may the same or different from each other and may be one of hydrogen, a hydroxyl group, an alkyl group with a carbon number of 1 to 30, an alkenyl group with a carbon number of 2 to 30, an alkoxy group with a carbon number of 1 to 30, a cycloalkyl group with a carbon number of 3 to 30, an aryl group with a carbon number of 6 to 30, derivatives thereof, or polymers thereof;
in Chemical Formula 3, R1 may be one of hydrogen, a hydroxyl group, an alkyl group with a carbon number of 1 to 30, an alkenyl group with a carbon number of 2 to 30, an alkoxy group with a carbon number of 1 to 30, a cycloalkyl group with a carbon number of 3 to 30, an aryl group with a carbon number of 6 to 30, derivatives thereof, or polymers thereof; wherein the initiator absorbs light of an ultraviolet wavelength, and the assistance colorant has a transmittance of more than about 60% in a short wavelength region, wherein the short wavelength region is in a range of about 300 nm to about 400 nm.
2. The color filter composition of claim 1 , wherein
the assistance colorant is a yellow assistance colorant.
3. The color filter composition of claim 2 , wherein
the assistance colorant includes at least two azo groups.
4. The color filter composition of claim 3 , wherein
the assistance colorant includes a functional group substituted into a sulfonyl group.
5. The color filter composition of claim 4 , wherein
the assistance colorant is represented by Chemical Formula 1 below:
in Chemical Formula 1, R and R1 may the same or different from each other and may be one of hydrogen, a hydroxyl group, an alkyl group with a carbon number of 1 to 30, an alkenyl group with a carbon number of 2 to 30, an alkoxy group with a carbon number of 1 to 30, a cycloalkyl group with a carbon number of 3 to 30, an aryl group with a carbon number of 6 to 30, derivatives thereof, or polymers thereof.
6. The color filter composition of claim 3 , wherein
the assistance colorant is represented by Chemical Formula 2 below:
7. The color filter composition of claim 2 , wherein
the assistance colorant is an anthraquinone-based material.
8. The color filter composition of claim 7 , wherein
the assistance colorant is represented by Chemical Formula 3 below:
in Chemical Formula 3, R1 may be one of hydrogen, a hydroxyl group, an alkyl group with a carbon number of 1 to 30, an alkenyl group with a carbon number of 2 to 30, an alkoxy group with a carbon number of 1 to 30, a cycloalkyl group with a carbon number of 3 to 30, an aryl group with a carbon number of 6 to 30, derivatives thereof, or polymers thereof.
9. The color filter composition of claim 1 , wherein
the assistance colorant has a transmittance of more than about 80% for the wavelength region of about 300 nm to 400 nm.