The present invention provides certain tetrapyrrolic compounds having a structure of Formula (1), (2), or (3) wherein B is (I), (II) (III) or (IV), O—R.sup.1 is a substituent in the meta or para position of the phenyl ring, R.sup.1 is a glyco-substituent derived from a mono-, di-, or trisaccharide group, and each R.sup.2 is independently selected from the group consisting of a linear or branched (fluoro-)alkyl group with 3 to 8 carbon atoms, phenyl, pentafluorophenyl, 3,5-bis(trifluoromethyl)phenyl, 4-(1′-thio-β-D-glucosyl)-2,3,5,6-tetrafluorophenyl, 4-(1′-thio-β-D-galactosyl)-2,3,5,6-tetrafluorophenyl, meta- or para-hydroxyphenyl, meta- or para-carboxyphenyl, and meta- or para-YO-phenyl with Y being a polyethyleneglycol-residue with (CH.sub.2CH.sub.2O).sub.nCH.sub.3 with n=1-30.

##STR00001## ##STR00002##

Provided are a novel naphthalocyanine compound, which has strong absorption in a near-infrared range, extremely weak absorption in a visible range, and high resistance such as light resistance and heat resistance, and exhibits excellent solubility in an organic solvent or a resin, a heat ray shielding material, and uses of the naphthalocyanine compound such as a heat ray shielding material and the like. The naphthalocyanine compound is represented by General Formula (1). ##STR00001## wherein, in Formula (1), M represents two hydrogen atoms, a divalent metal, or a derivative of a trivalent or tetravalent metal, R.sub.1 to R.sub.3 each independently represent a hydrogen atom, a halogen atom, or a linear, branched, or cyclic alkyl group, A represents Formula (2), and B represents Formula (3), ##STR00002## wherein, in Formula (2), R.sub.4 to R.sub.8 each independently represent a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, an alkylthio group, an aryloxy group, or an arylthio group, and ##STR00003## wherein, in Formula (3), X represents an oxygen atom, a sulfur atom, and or an imino group, R.sub.9 to R.sub.13 each independently represent a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, an ester group, an amide group, or a sulfonamide group.

The present invention is generally directed to the synthesis and use of fluorophores. It is more specifically directed to the synthesis and use of deuterated fluorophores. In one case, the present invention provides a compound of the structure shown in FIG. 44.

There is provided a photoelectric conversion film including a quinacridone derivative represented by the following General formula and a subphthalocyanine derivative represented by the following General formula.

There is provided a photoelectric conversion film including a quinacridone derivative represented by the following General formula and a subphthalocyanine derivative represented by the following General formula.

A color vision correction filter includes a least one type of dye material and the lowest value of transmittance of the color vision correction filter in a wavelength band ranging from 440 nm to 600 nm, inclusive, is in the range of plus or minus 50 nm of 535 nm.

A color vision correction filter includes a least one type of dye material and the lowest value of transmittance of the color vision correction filter in a wavelength band ranging from 440 nm to 600 nm, inclusive, is in the range of plus or minus 50 nm of 535 nm.

Use of an encapsulated natural color for coloring a household, industrial or institutional (HI&I) product wherein the encapsulated natural color is stable in water to simulated solar irradiation at 765 Watt in accordance with International Commission on Illumination 85 (1989, Table 4, 3 mm window glass) reference sun for a period of between 8 hours and 16 hours.

Use of an encapsulated natural color for coloring a household, industrial or institutional (HI&I) product wherein the encapsulated natural color is stable in water to simulated solar irradiation at 765 Watt in accordance with International Commission on Illumination 85 (1989, Table 4, 3 mm window glass) reference sun for a period of between 8 hours and 16 hours.

The present specification relates to an optical film, and a display device comprising the same.