C09B47/10

Polyhalogenated zinc phthalocyanine, polyhalogenated zinc phthalocyanine pigment, and color filter including pixel portion containing polyhalogenated zinc phthalocyanine pigment
11261332 · 2022-03-01 · ·

There is provided a polyhalogenated zinc phthalocyanine having good tinting strength and being capable of achieving higher brightness when the polyhalogenated zinc phthalocyanine is used in pixel portions of color filters. The object is achieved by providing the polyhalogenated zinc phthalocyanine represented by general formula 1: (wherein in general formula 1, X.sub.1 to X.sub.16 are each independently a chlorine atom, a bromine atom, or a hydrogen atom), in which a value obtained by dividing the maximum ion intensity, measured by mass spectrometry, in an m/z range of 1,780 (inclusive) to 1,820 (exclusive) by the maximum ion intensity in the m/z range of 1,820 (inclusive) to 1,860 (inclusive) is 1.00 or less.

GREEN PIGMENT COMPOSITION FOR COLOR FILTERS, AND COLOR FILTER

Provided is a green pigment composition which includes a halogenated zinc phthalocyanine pigment and a brominated chlorinated zinc phthalocyanine derivative having a phthalimide skeleton bonded by an alkylene group, and which enables a great enhancement in contrast without decreasing luminance and coloring power, and a color filter including the green pigment composition. The green pigment composition for color filters includes from 0.1 to 10 parts of a halogenated zinc phthalocyanine pigment derivative substituted with a functional group having a phthalimide skeleton bonded by an alkylene group per 100 parts of a halogenated zinc phthalocyanine pigment, in terms of a mass, and a color filter includes the green pigment composition for color filters.

GREEN PIGMENT COMPOSITION FOR COLOR FILTERS, AND COLOR FILTER

Provided is a green pigment composition which includes a halogenated zinc phthalocyanine pigment and a brominated chlorinated zinc phthalocyanine derivative having a phthalimide skeleton bonded by an alkylene group, and which enables a great enhancement in contrast without decreasing luminance and coloring power, and a color filter including the green pigment composition. The green pigment composition for color filters includes from 0.1 to 10 parts of a halogenated zinc phthalocyanine pigment derivative substituted with a functional group having a phthalimide skeleton bonded by an alkylene group per 100 parts of a halogenated zinc phthalocyanine pigment, in terms of a mass, and a color filter includes the green pigment composition for color filters.

Pigment composition for green filter and production method thereof

A pigment composition for a green filter includes a green pigment consisting of a halogenated zinc phthalocyanine, wherein as spectral transmission characteristics of a dispersion containing only the green pigment as a pigment, the transmittance at 400 nm is 1% or less; the transmittance at 450 nm is 25% or less; the transmittance at 600 nm is 30% or less; the transmittance at 650 nm is 0.3% or less; the transmittance at the peak wavelength is 80% or more; the half value width of the peak wavelength is 120 nm or less; the transmittance at 750 nm is 1% or less; and the transmittance at 800 nm is 20% or less. The pigment composition for a green filter has low transmittance in the blue range, low transmittance in the near infrared range, and high transmittance in the green range by only a green pigment.

Pigment composition for green filter and production method thereof

A pigment composition for a green filter includes a green pigment consisting of a halogenated zinc phthalocyanine, wherein as spectral transmission characteristics of a dispersion containing only the green pigment as a pigment, the transmittance at 400 nm is 1% or less; the transmittance at 450 nm is 25% or less; the transmittance at 600 nm is 30% or less; the transmittance at 650 nm is 0.3% or less; the transmittance at the peak wavelength is 80% or more; the half value width of the peak wavelength is 120 nm or less; the transmittance at 750 nm is 1% or less; and the transmittance at 800 nm is 20% or less. The pigment composition for a green filter has low transmittance in the blue range, low transmittance in the near infrared range, and high transmittance in the green range by only a green pigment.

HALOGENATED ZINC PHTHALOCYANINE PIGMENT FOR COLOR FILTER AND METHOD FOR PRODUCING HALOGENATED ZINC PHTHALOCYANINE PIGMENT FOR COLOR FILTER

There is provided a novel halogenated zinc phthalocyanine pigment for a color filter, which can form a green color filter having excellent contrast and high luminance. A halogenated zinc phthalocyanine pigment for a color filter shows, in a Raman spectrum, a peak intensity of 3.0% or more at 716±2.2 cm.sup.−1 when a peak intensity at 650±10 cm.sup.−1 is regarded as 100%.

HALOGENATED ZINC PHTHALOCYANINE PIGMENT FOR COLOR FILTER AND METHOD FOR PRODUCING HALOGENATED ZINC PHTHALOCYANINE PIGMENT FOR COLOR FILTER

There is provided a novel halogenated zinc phthalocyanine pigment for a color filter, which can form a green color filter having excellent contrast and high luminance. A halogenated zinc phthalocyanine pigment for a color filter shows, in a Raman spectrum, a peak intensity of 3.0% or more at 716±2.2 cm.sup.−1 when a peak intensity at 650±10 cm.sup.−1 is regarded as 100%.

HALOGENATED ZINC PHTHALOCYANINE PIGMENT AND PRODUCTION METHOD FOR SAME

The halogenated zinc phthalocyanine pigment is for use as a green pigment for color filters and capable of achieving high brightness. In the halogenated zinc phthalocyanine pigment, when a coating film containing 1.00 part by mass of the pigment, 0.95 parts by mass of a benzyl methacrylate-methacrylic acid copolymer, and 0.30 parts by mass of a dimethylaminoethyl methacrylate copolymer is heated at 230° C. for one hour to form an evaluation coating film having a thickness of 4 μm, an average scattering intensity at scattering angles 2θ in a range of 17° to 21° is determined from a two-dimensional scattering image obtained by GI-WAXS measurement of the evaluation coating film, and a normalized average scattering intensity is determined such that the average scattering intensity at an azimuth of 45° is 1, the normalized average scattering intensity at azimuths of 5° to 89° is 0.70 to 1.15.

HALOGENATED ZINC PHTHALOCYANINE PIGMENT AND PRODUCTION METHOD FOR SAME

The halogenated zinc phthalocyanine pigment is for use as a green pigment for color filters and capable of achieving high brightness. In the halogenated zinc phthalocyanine pigment, when a coating film containing 1.00 part by mass of the pigment, 0.95 parts by mass of a benzyl methacrylate-methacrylic acid copolymer, and 0.30 parts by mass of a dimethylaminoethyl methacrylate copolymer is heated at 230° C. for one hour to form an evaluation coating film having a thickness of 4 μm, an average scattering intensity at scattering angles 2θ in a range of 17° to 21° is determined from a two-dimensional scattering image obtained by GI-WAXS measurement of the evaluation coating film, and a normalized average scattering intensity is determined such that the average scattering intensity at an azimuth of 45° is 1, the normalized average scattering intensity at azimuths of 5° to 89° is 0.70 to 1.15.

COLORING COMPOSITION, FILM, COLOR FILTER AND SOLID-STATE IMAGING ELEMENT
20230367052 · 2023-11-16 · ·

Provided is a coloring composition containing a colorant, a resin, a polymerizable compound, a photopolymerization initiator, an ultraviolet absorber, and a solvent, in which the colorant contains an unsubstituted copper phthalocyanine pigment and a halogenated copper phthalocyanine pigment, a content of the unsubstituted copper phthalocyanine pigment in a total mass of the colorant is 10% by mass or more, and a content of the halogenated copper phthalocyanine pigment in the total mass of the colorant is 40% by mass or more.